CN110045479B

CN110045479B - Motor structure and image pickup device

Info

Publication number: CN110045479B
Application number: CN201910340577.XA
Authority: CN
Inventors: 龚高峰; 唐利新
Original assignee: Shanghai BL Electronics Co Ltd
Current assignee: Shanghai BL Electronics Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2024-04-16
Anticipated expiration: 2039-04-25
Also published as: CN110045479A

Abstract

The invention provides a motor structure and an imaging device. The motor structure comprises a shell, a lens support body and a base, wherein the lens support body is arranged between the shell and the base, and an anti-collision structure is arranged on the surface of the lens support body, which faces the base, of the lens support body and/or the surface of the base, which faces the lens support body, of the base. The invention effectively solves the problem that dust is easy to generate inside a motor structure in the prior art to influence imaging quality.

Description

Motor structure and image pickup device

Technical Field

The invention relates to the technical field of cameras, in particular to a motor structure and an imaging device.

Background

When the lens photographing device for the photographing function of the mobile phone is in a focusing process, the lens support body moves towards the base surface along the optical axis direction, and the lens support body dust-proof ring positioned on the lower end surface of the lens support body can strike the base surface at first. Repeated driving impact can enable impact parts to generate tiny dust particles, and the dust particles can scatter and adhere to all key parts inside a product, so that great potential risks are caused for the definition of an image of the device, and the final imaging effect of camera shooting of a lens is affected. For motor structures where high quality imaging is required, it is a significant issue how to effectively control and prevent the generation of dust particles inside.

As described above, the prior art has a problem that dust is easily generated inside the motor structure.

Disclosure of Invention

The invention mainly aims to provide a motor structure and an imaging device, which are used for solving the problem that dust is easy to generate inside the motor structure in the prior art to influence imaging quality.

In order to achieve the above object, according to one aspect of the present invention, there is provided a motor structure including a housing, a lens support and a base, the lens support being disposed between the housing and the base, and a lens support surface of the lens support facing the base and/or a base surface of the base facing the lens support being provided with an impact preventing structure.

Further, the impact-preventing structure is an impact-preventing plate provided on the surface of the lens support body and/or the surface of the base.

Further, the impact plate is a metal plate.

Further, the impact plate is an integral annular plate-like structure; or the anti-collision plate is a plurality of plate segments which are arranged at intervals, and the plurality of plate segments are arranged at intervals along the circumference of the surface of the lens supporting body and/or the surface of the base.

Further, a portion of the impact plate is embedded within the lens support surface and/or the base surface, and another portion of the impact plate protrudes from the lens support surface and/or the base surface.

Further, the anti-collision plate is arranged on the surface of the base, at least one accommodating notch is formed in the edge of one side of the anti-collision plate, which faces the center of the base, a stop protrusion is arranged on the surface of the base, and the stop protrusion is clamped at the accommodating notch.

Further, a guiding slope surface is arranged on the upper side edge of the accommodating notch so as to be clamped and stopped with the stop bulge.

Further, one side of the base facing the lens support body is provided with an annular sinking table, the center of the annular sinking table extends out of the base dust-proof ring facing the lens support body, the anti-collision plate is arranged in the annular sinking table, the motor structure further comprises a plurality of end feet, and the end feet are arranged on the base and are located outside the annular sinking table.

Further, when the impact plate is a unitary annular plate-like structure and is disposed on the base surface, the annular plate-like structure also has at least one overlap tab projecting toward the edge of the base.

Further, the motor structure further includes: a frame, in which the lens support is located, and in which the housing is located; the driving magnet is accommodated at the edge of the frame and is positioned between the side wall of the shell and the lens support body; a lower spring supported between the base and the lens support; the upper spring and the gasket are arranged on one side of the lens supporting body away from the lower spring, and the upper spring is supported between the gasket and the lens supporting body; the FPCB assembly comprises an FPCB plate, a capacitor and a Hall element, wherein the capacitor and the Hall element are arranged on the FPCB plate, and the Hall magnet is arranged on the lens support body; and the driving coil is wound on the lens support body.

Further, the impact-resistant structure is an impact-resistant coating coated on the lens support surface and/or the base surface.

Further, the impact-resistant coating is a metal coating.

Further, a containing groove is arranged on the surface of the lens supporting body and/or the surface of the base, and the anti-collision coating is filled in the containing groove.

According to another aspect of the present invention, there is provided an image pickup apparatus including the above-described motor structure.

By applying the technical scheme of the invention, the motor structure comprises the shell, the lens support body and the base, wherein the lens support body is arranged between the shell and the base, and the surface of the lens support body, which faces the base, of the lens support body and/or the surface of the base, which faces the lens support body, of the base are provided with the anti-collision structure.

When the motor structure of the structure is used, due to the fact that the anti-collision structure is arranged, the position of the anti-collision structure is arranged at the position where the lens supporting body and the base are in contact, when the lens supporting body moves and collides with the base in the working process of the motor structure, the anti-collision structure can effectively inhibit dust particles, and therefore the imaging effect of the motor structure is guaranteed. And, when crashproof structure sets up on the base, can also increase the hardness of base to make motor structure's wholeness can be more stable.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

fig. 1 shows a schematic structural view of a motor structure according to an embodiment of the present invention;

FIG. 2 shows a cross-sectional view of the motor structure of FIG. 1;

FIG. 3 shows an exploded view of the motor structure of FIG. 1;

FIG. 4 shows an exploded view of the lens support body and impact structure of the motor structure of FIG. 1;

FIG. 5 shows an exploded view of the lens support body, impact structure and base of the motor structure of FIG. 1;

FIG. 6 is a diagram showing the relationship between the base of the motor structure of FIG. 1 and the anti-collision structure;

FIG. 7 shows a top view of FIG. 6;

FIG. 8 shows an exploded view of the lens support, hall magnet, and Hall spacer of the motor structure of FIG. 1;

fig. 9 shows an enlarged view at a in fig. 4.

Wherein the above figures include the following reference numerals:

10. a housing; 20. a lens support; 21. a lens support dust ring; 22. a Hall magnet; 23. a Hall gasket; 30. a base; 31. a stop protrusion; 32. an annular sinking platform; 33. a base dust-proof ring; 40. an anti-collision structure; 41. the accommodating notch; 411. a guide slope surface; 42. overlap lugs; 50. a frame; 60. driving a magnet; 70. a lower spring; 80. a spring is arranged; 90. a gasket; 100. an FPCB assembly; 110. an FPCB board; 120. a capacitor; 130. a Hall element; 200. and driving the coil.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that 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 unless otherwise indicated.

In the present invention, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present invention.

In order to solve the problem that dust is easy to generate inside a motor structure to influence imaging quality in the prior art, the application provides a motor structure and an imaging device.

The camera device in the application comprises a motor structure in the application, and optionally, the camera device in the application can be a mobile terminal such as a mobile phone, a portable information terminal and a notebook computer with a camera function.

The motor structure can effectively enhance the imaging effect of the imaging device.

As shown in fig. 1 to 9, a motor structure in the present application includes a housing 10, a lens support 20, and a base 30, the lens support 20 is disposed between the housing 10 and the base 30, and a lens support surface of the lens support 20 facing the base 30 and/or a base surface of the base 30 facing the lens support 20 is provided with an anti-collision structure 40.

When the motor structure of the above structure is used, since the impact preventing structure 40 is provided and the position of the impact preventing structure 40 is provided at the contact position between the lens supporting body 20 and the base 30, the impact preventing structure 40 can effectively suppress the generation of dust particles when the lens supporting body 20 moves and impacts with the base 30 during the operation of the motor structure, thereby ensuring the imaging effect of the motor structure. In addition, when the anti-collision structure 40 is disposed on the base 30, the rigidity of the base 30 can be increased, thereby making the overall performance of the motor structure more stable.

Example 1

In this embodiment, the impact structure 40 is an impact plate disposed on the lens support surface and/or the base surface. By providing the impact structure 40 as an impact plate, not only can the impact mechanism be provided with the properties of an impact coating, but the strength of the impact structure 40 can be further enhanced, making the impact structure 40 more durable.

As shown in fig. 6 and 7, in one embodiment of the present application, an impact plate is provided on the base surface. Since the lens support 20 moves during the operation of the motor structure, the impact preventing structure 40 is disposed on the surface of the base, so that the overall weight of the lens support 20 can be effectively reduced, the movement of the lens support 20 is more flexible, and the performance of the image pickup device is more sensitive. But also to provide the impact structure 40 on the base surface to increase the flatness and strength of the base 30.

Specifically, the impact plate is a metal plate. The metal plate is selected as the anti-collision plate to effectively inhibit the generation of foreign particles. In a specific embodiment, the metal plate is selected to be a steel plate.

In the specific embodiment shown in fig. 4 to 7, the impact plate is a unitary annular plate-like structure. Through such setting, can guarantee that the laminating between crashproof board and the base 30 is more stable, guarantee the uniformity of crashproof board installation on the base 30, also can avoid producing the gap between the two to influence the working property of whole motor structure. And the anti-collision plate with the annular plate-shaped structure can effectively increase the overall structural strength of the base 30 and improve the imaging quality of the imaging device.

Optionally, a portion of the impact plate is embedded within the lens support surface and/or the base surface, and another portion of the impact plate protrudes from the lens support surface and/or the base surface.

In one particular embodiment, the impact plate is semi-embedded into the base 30 by an Insert Molding process. Of course, in order to achieve different effects, the anti-collision plate may be placed on the upper surface of the base 30, and adhered and fixed by glue.

As shown in fig. 4 and 9, the anti-collision plate is disposed on the surface of the base, and at least one receiving notch 41 is disposed at an edge of one side of the anti-collision plate facing the center of the base 30, and a stop protrusion 31 is disposed on the surface of the base, and the stop protrusion 31 is clamped at the receiving notch 41. When the anti-collision plate is arranged on the surface of the base, the anti-collision plate can be effectively prevented from shaking on the base 30 by arranging the stop protrusions 31 to be matched with the accommodating gaps 41, so that the stability of the motor structure is prevented from being influenced by the anti-collision plate. Of course, it should be noted that, in order to ensure more stable contact between the anti-collision plate and the base 30, the dispensing process may be performed at the contact position between the accommodating notch 41 and the stop protrusion 31.

The protrusion direction of the stopper protrusion 31 is not protruded in the Z-axis direction but is directed in the X-Y axis direction. Also, a portion of the impact plate may be disposed under the base dust ring 33 to further strengthen the stability of the impact plate inside the base 30.

Specifically, the upper side edge of the accommodating notch 41 is provided with a guiding slope surface 411 to be blocked with the blocking protrusion 31. By the engagement of the stopper projection 31 and the guide slope 411, the adhesion between the impact plate and the base 30 can be further effectively made stronger, and the impact plate can be effectively prevented from falling off from the base 30.

Specifically, the base 30 has an annular sinking platform on a side facing the lens support 20, the center of the annular sinking platform 32 extends out of the base dust ring 33 toward the lens support 20, the anti-collision plate is disposed in the annular sinking platform, and the motor structure further includes a plurality of end feet disposed on the base 30 and located outside the annular sinking platform 32. Through setting up annular heavy platform to with the crashproof board setting in annular heavy platform, can guarantee the smoothness of base surface like this effectively, and can also make and produce effectual cooperation between crashproof board and the lens supporter dust collar 21, reinforcing dustproof performance. And the terminal pin is arranged outside the annular sinking table 32, when the anti-collision plate is a metal plate, a certain distance can be ensured between the anti-collision plate and the terminal pin, so that the anti-collision plate and the terminal pin can be effectively prevented from being electrically connected, and the motor structure is prevented from being damaged.

The lens support 20 further has a lens support dust ring 21 protruding toward the center of the annular sinking stage, and when the lens support 20 hits the base 30, the base dust ring 33 is nested with the lens support dust ring 21.

In particular, when the impact plate is a unitary annular plate-like structure and is disposed on the base surface, the annular plate-like structure also has at least one overlap tab 42 projecting toward the edge of the base 30. As shown in fig. 4, in one embodiment of the present application, the number of overlap lugs 42 is 4. Since the bottom surface shapes of the different lens supporting bodies 20 may be different, so that the contact positions of the different lens supporting bodies 20 and the base 30 and the contact areas of the different positions are different, the lugs 42 can be overlapped to increase the contact area of the anti-collision plate and the lens supporting bodies 20. And by providing the overlap lugs 42, the contact area between the impact plate and the base 30 can also be increased to further ensure effective engagement of the impact plate with the base 30.

As shown in fig. 3 and 8, the motor structure further includes: the frame 50, the driving magnet 60, the lower spring 70, the upper spring 80, the spacer 90, the FPCB assembly 100, and the driving coil 200. The lens support 20 is located within the frame 50, and the frame 50 is located within the housing 10; the driving magnet 60 is accommodated at the edge of the frame 50 and located between the side wall of the housing 10 and the lens support 20; the lower spring 70 is supported between the base 30 and the lens support body 20; the spacer 90 is disposed on a side of the lens support body 20 remote from the lower spring 70 and the upper spring 80 is supported between the spacer 90 and the lens support body 20; the FPCB assembly 100 includes an FPCB plate 110, and a capacitor 120 and a hall element 130 provided on the FPCB plate 110, and a hall magnet 22 and a hall pad 23 are provided on the lens support 20; the driving coil 200 is wound around the lens support body 20.

Example two

The difference from the first embodiment is that the impact plate is not of annular plate-like structure.

Specifically, the anti-collision plate is a plurality of plate segments arranged at intervals, and the plurality of plate segments are arranged at intervals along the circumference of the surface of the lens support body and/or the surface of the base. Since the lens support 20 is in operation, only part of the surface may be in contact with the base 30. Therefore, by providing this, the impact plate can be covered only on the portion of the lens support body 20 that contacts the base 30, and the overall weight of the motor structure can be effectively reduced. Further, by providing this, the impact plate can be prevented from affecting the movement of the lens support body 20.

Specifically, impact bumps are dispersed and arranged on the surface of the lens support 20, which is in contact with the base 30. Accordingly, the impact plate of the plurality of plate segments is disposed on the base 30 such that the plurality of plate segments correspond to the impact bumps.

Example III

The difference from the first embodiment is that the impact structure is different.

In this particular embodiment, the impact structure 40 is an impact resistant coating that is coated on the lens support surface and/or the base surface. After the anti-collision structure 40 is arranged into the anti-collision coating, the surface of the lens support body 20 or the surface of the base 30 can be ensured to be smoother, so that the friction force generated by collision between the lens support body 20 and the base 30 can be reduced, the friction coefficient is reduced, and the movement of the lens support body 20 is smoother and smoother.

Optionally, the impact-resistant coating is a metal coating. By this arrangement, the impact-resistant coating can be made more durable. And the provision of an anti-collision coating as a technical coating further reduces friction between the lens support and the base 30 due to collisions.

Further alternatively, the impact-resistant coating is a steel coating or an iron coating.

The anti-collision coating in the present application may be a DLC coating (DIAMOND LIKE CARBON, diamond-like carbon film) or the like.

In order to improve the setting stability of the anti-collision coating, the surface of the lens support body and/or the surface of the base are provided with accommodating grooves, and the anti-collision coating is filled in the accommodating grooves. Therefore, the anti-collision coating can be accommodated in the accommodating groove in a casting mode and the like, and is not easy to fall off after repeated collision.

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

1. by arranging the anti-collision structure 40, the generation of foreign particles is well inhibited, and the imaging effect is improved;

2. the friction coefficient between the base 30 and the lens support body 20 is reduced, so that the lens support body 20 moves more smoothly;

3. when the impact preventing structure 40 is provided on the base 30, the use strength of the base 30 can also be increased.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the 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 in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated 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 the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The motor structure is characterized by comprising a shell (10), a lens support body (20) and a base (30), wherein the lens support body (20) is arranged between the shell (10) and the base (30), and an anti-collision structure (40) is arranged on the surface of the lens support body (20) facing the base (30) and the surface of the base (30) facing the lens support body (20); the anti-collision structure (40) is an anti-collision plate disposed on the lens support surface and the base surface; a portion of the impact plate is embedded within the lens support surface and the base surface, and another portion of the impact plate protrudes from the lens support surface and the base surface;

the anti-collision plate is a plurality of plate segments which are arranged at intervals, and the plurality of plate segments are arranged at intervals along the circumferential directions of the surface of the lens supporting body and the surface of the base;

the anti-collision plate is arranged on the surface of the base, at least one accommodating notch (41) is arranged at the edge of one side of the anti-collision plate, which faces the center of the base (30), a stop protrusion (31) is arranged on the surface of the base, and the stop protrusion (31) is clamped at the accommodating notch (41);

the upper side edge of the accommodating notch (41) is provided with a guide slope surface (411) so as to be clamped and stopped with the stop protrusion (31).

2. The motor structure according to claim 1, wherein the impact-preventing plate is a metal plate.

3. The motor structure according to claim 1, characterized in that the side of the base (30) facing the lens support body (20) has an annular sinking table (32), the center of the annular sinking table (32) extends out of a base dust ring (33) toward the lens support body (20), the anti-collision plate is disposed in the annular sinking table (32), and the motor structure further comprises a plurality of end feet disposed on the base (30) and located outside the annular sinking table (32).

4. A motor structure according to any one of claims 1 to 3, characterized in that the motor structure further comprises:

-a frame (50), the lens support (20) being located within the frame (50), and the frame (50) being located within the housing (10);

a drive magnet (60), the drive magnet (60) being housed at an edge of the frame (50) and located between a side wall of the housing (10) and the lens support (20);

a lower spring (70), the lower spring (70) being supported between the base (30) and the lens support body (20);

an upper spring (80) and a spacer (90), the spacer (90) being disposed on a side of the lens support body (20) remote from the lower spring (70) and the upper spring (80) being supported between the spacer (90) and the lens support body (20);

an FPCB assembly (100), wherein the FPCB assembly (100) comprises an FPCB plate (110), a capacitor (120) and a Hall element (130), wherein the capacitor (120) and the Hall element (130) are arranged on the FPCB plate (110), and a Hall magnet (22) is arranged on the lens support body (20);

and a driving coil (200), wherein the driving coil (200) is wound on the lens support body (20).

5. An image pickup apparatus, characterized by comprising the motor structure according to any one of claims 1 to 4.