CN107046620B

CN107046620B - Assembling structure of lens and base and camera module

Info

Publication number: CN107046620B
Application number: CN201710407331.0A
Authority: CN
Inventors: 康伟; 严小超
Original assignee: Truly Opto Electronics Ltd
Current assignee: Truly Opto Electronics Ltd
Priority date: 2017-06-02
Filing date: 2017-06-02
Publication date: 2020-09-04
Anticipated expiration: 2037-06-02
Also published as: CN107046620A

Abstract

The invention discloses an assembly structure of a lens and a base, which comprises the lens and the base, wherein a slope track arranged along the circumferential direction is arranged on the end surface of the tail end of the base, the slope track is provided with a guide surface which gradually inclines along the extending direction of the slope track, a boss is arranged on the periphery of a lens barrel of the lens, and the boss is provided with a sliding part in sliding fit with the slope track. When the camera module is assembled, the lens is placed on the base, the sliding part is matched with the slope track, then the lens and the base rotate relatively, and the guide surface is obliquely arranged, so that the adjustment of the relative position of the lens and the base in the axial direction is completed in the rotating process, and the thread-free focusing function of the lens is realized. Compared with the existing assembly structure, the scheme has no problem of meshing abrasion of the thread locking structure, and solves the problem of stain caused by thread locking. The invention also discloses a camera module comprising the assembly structure of the lens and the base.

Description

Assembling structure of lens and base and camera module

Technical Field

The invention relates to the technical field of camera modules, in particular to an assembling structure of a lens and a base and a camera module.

Background

At present, bases and lenses of vehicle-mounted, industrial and consumer fixed-focus camera module products adopt thread locking structures, and during assembly and matching of the bases and the lenses, thread engagement friction can cause stains on the lenses.

Therefore, how to solve the problem of stains caused by the conventional screw locking of the base and the lens is a technical problem which needs to be solved by the technical personnel in the field at present.

Disclosure of Invention

In view of the above, an object of the present invention is to provide an assembly structure of a lens and a base, which can achieve thread-free focusing of a fixed-focus camera module during assembly, and solve the problem of stains caused by a thread locking structure. Another object of the present invention is to provide a camera module including the above assembly structure.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an assembly structure of camera lens and base, includes camera lens and base, be provided with the slope track of arranging along circumference on the terminal surface of base, the slope track is equipped with the guide face of slope gradually on the extending direction along self, the lens cone periphery of camera lens is equipped with the boss, the boss be equipped with slope track sliding fit's sliding part.

Preferably, in the assembly structure of the lens and the base, the slope rail is a sliding groove, the guide surface is a groove bottom surface of the sliding groove, and the sliding portion is a slider fixed to the boss.

Preferably, in the assembly structure of the lens and the base, a cross section of the sliding groove is rectangular.

Preferably, in the assembly structure of the lens barrel and the base, a plurality of the slope rails are sequentially arranged on an end surface of the base end along a circumferential direction, and an inclination direction and an inclination angle of the guide surface of the plurality of the slope rails are the same.

Preferably, in the assembly structure of the lens and the base, the number of the slope rails is two, and the boss is provided with two sliding portions corresponding to the slope rails one to one.

Preferably, in the above-mentioned lens and base assembly structure, the lengths of the two slope rails are equal.

Preferably, in the assembly structure of the lens and the base, the two slope rails are arranged in a central symmetry manner with an axis of the base as a center.

Preferably, in the above-mentioned assembly structure of the lens barrel and the base, the lens barrel, the boss and the sliding portion are integrally formed as a plastic member.

Preferably, in the above-mentioned assembly structure of the lens and the base, an inner ring of the base is provided with a mounting groove for accommodating fixing glue.

The invention provides an assembly structure of a lens and a base, which comprises the lens and the base, wherein a slope track arranged along the circumferential direction is arranged on the end surface of the tail end of the base, the slope track is provided with a guide surface gradually inclining along the extending direction of the slope track, the periphery of a lens barrel of the lens is provided with a boss, and the boss is provided with a sliding part in sliding fit with the slope track. When the camera module is assembled, the lens is placed on the base, the sliding part is matched with the slope track, then the lens and the base rotate relatively, and the guide surface is obliquely arranged, so that the adjustment of the relative position of the lens and the base in the axial direction is completed in the rotating process, and the thread-free focusing function of the lens is realized. Compared with the existing assembly structure, the scheme has no problem of meshing abrasion of the thread locking structure, and solves the problem of stain caused by thread locking.

The invention also provides a camera module which comprises the assembly structure of the lens and the base. The derivation process of the beneficial effect of the camera module is substantially similar to the derivation process of the beneficial effect brought by the assembly structure of the lens and the base, and therefore, the description is omitted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of an assembly structure of a lens and a base according to an embodiment of the present invention.

In fig. 1:

1-base, 2-slope track, 3-sliding part, 4-boss, 5-mounting groove and 6-lens.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, in an embodiment, the present invention provides an assembly structure of a lens and a base, including a lens 6 and a base 1, a slope rail 2 arranged along a circumferential direction is disposed on an end surface of a distal end of the base 1, the slope rail 2 is provided with a guide surface gradually inclined in an extending direction thereof, a boss 4 is disposed on an outer circumference of a lens barrel of the lens 6, and the boss 4 is provided with a sliding portion 3 slidably engaged with the slope rail 2.

When the camera module is assembled, the lens 6 is placed on the base 1, the sliding part 3 is matched with the slope track 2, then the lens 6 and the base 1 rotate relatively, and the guide surface is arranged in an inclined mode, so that the relative position of the lens 6 and the base 1 in the axial direction is adjusted in the rotating process, and the thread-free focusing function of the lens 6 is achieved. Compared with the existing assembly structure, the scheme has no problem of meshing abrasion of the thread locking structure, and solves the problem of stain caused by thread locking.

Preferably, the inner ring of the base 1 is provided with a mounting groove 5 for accommodating fixing glue, and after the focusing positions of the lens 6 and the base 1 are determined, the lens 6 and the base 1 are bonded and fixed by the fixing glue, so as to form a fixed-focus camera module.

It should be noted that the slope track 2 in this embodiment may be designed in the form of a groove or a raised rail, and preferably, the slope track 2 in this embodiment is designed in a sliding groove structure, the guiding surface is a groove bottom surface of the sliding groove, and the sliding part 3 is a sliding block fixed to the boss 4, as shown in fig. 1, the sliding groove is a circular arc-shaped groove formed on an end surface of the base 1, and the groove bottom surface of the sliding groove extends obliquely, so as to guide the sliding block in a sliding manner. The slider is the lug that is located boss 4 lower extreme face, and the slider cooperation can guarantee steadily to slide in the spout.

Preferably, the cross section of above-mentioned spout is the rectangle, and the tank bottom surface and two sides of above-mentioned spout are the plane, so set up, can realize the more steady guide slip to the slider. Of course, the cross section of the sliding groove can also be designed into a U shape, a V shape, a dovetail shape or other shapes, which are not listed in the text.

It should be noted that in the present solution, one or more slope rails 2 may be only arranged on the end surface of the base 1, and the requirement for focusing the lens 6 may be met by designing the slope rails 2 with a suitable length. Preferably, a plurality of slope tracks 2 are sequentially arranged on the end face of the tail end of the base 1 along the circumferential direction, and the inclined directions and the inclined angles of the guide surfaces of the slope tracks 2 are the same, namely, the inclined directions and the inclined angles of the guide surfaces of the slope tracks 2 are the same in the same circumferential direction around the axis of the base 1, and meanwhile, a plurality of sliding parts 3 are correspondingly arranged on the boss 4 of the lens 6, so that a plurality of guide supports for the lens 6 can be formed, and the stability and the accuracy of the focusing process are improved.

Further preferably, the number of the slope rails 2 is two, and as shown in fig. 1, the boss 4 is provided with two sliding portions 3 corresponding to the slope rails 2 one to one, so that the assembling structure can be further simplified and the processing and manufacturing are convenient under the condition that the focusing accuracy is ensured.

Preferably, the lengths of the two slope tracks 2 are equal, specifically, each slope track 2 can be designed into a semicircular arc-shaped sliding groove in the scheme, the two semicircular arc-shaped slope tracks 2 are connected end to end, the focusing range of the lens 6 can be further expanded, and assembly and matching are facilitated. Of course, those skilled in the art can also design the ramp track 2 with other lengths according to the focusing requirement, and the description is omitted here.

Further preferably, the two slope tracks 2 are arranged in a central symmetry manner by taking the axis of the base 1 as the center, so that the stress of the lens 6 in the rotating process is more uniform, the rotating process is smoother, and the assembling efficiency can be improved.

It should be noted that the lens barrel of the lens 6, the boss 4 and the sliding part 3 in this embodiment may be formed by conventional processing methods, such as welding or integral injection molding, and preferably, the lens barrel, the boss 4 and the sliding part 3 in this embodiment are integrally formed plastic parts, which can ensure the assembly precision and reduce the assembly dimension error.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides an assembly structure of camera lens and base, its characterized in that, includes camera lens (6) and base (1), be provided with slope track (2) of arranging along circumference on the terminal surface of base (1), slope track (2) are equipped with the guide face that inclines gradually on the extending direction along self, the lens cone periphery of camera lens (6) is equipped with boss (4), boss (4) be equipped with slope track (2) sliding fit's sliding part (3), slope track (2) are the spout, the spout is the convex recess of seting up on base (1) terminal surface, the guide face does the tank bottom surface of spout, sliding part (3) are for being fixed in the slider of boss (4), convex recess with the inner space of base (1) is kept apart each other.

2. The assembly structure of lens and base as claimed in claim 1, wherein the cross section of the sliding groove is rectangular.

3. The lens and base assembly structure according to claim 1, wherein a plurality of the slope rails (2) are sequentially provided on an end surface of a distal end of the base (1) in a circumferential direction, and an inclination direction and an inclination angle of the guide surface of the plurality of slope rails (2) are the same.

4. The lens and base assembly structure according to claim 3, wherein the number of the slope rails (2) is two, and the boss (4) is provided with two of the sliding portions (3) in one-to-one correspondence with the slope rails (2).

5. Assembly of a lens and a mount according to claim 4, characterized in that the two ramp tracks (2) are of equal length.

6. The lens and base assembly structure of claim 5, wherein the two slope rails (2) are arranged in a central symmetry manner with the axis of the base (1) as the center.

7. The assembly structure of lens and base according to claim 1, wherein the lens barrel, the boss (4) and the sliding portion (3) are integrally formed plastic parts.

8. The lens and mount assembly according to any one of claims 1 to 7, wherein the inner ring of the mount (1) is provided with a mounting groove (5) for receiving fixing glue.

9. A camera module, characterized in that it comprises the lens and base assembly structure according to any one of claims 1 to 8.