CN220273762U - Shell structure and lens module - Google Patents

Abstract

The utility model relates to a shell structure and a lens module. The shell structure comprises a lens barrel part, a mounting part and a welding part, wherein the lens barrel part is provided with a lens cavity for assembling a lens group and a glue drawing groove group positioned around the lens cavity; the mounting part integrally extends downwards from the bottom surface of the lens barrel part and is used for mounting a circuit board; the welding part integrally extends downwards from the bottom surface of the lens barrel part and is used for welding a base; the welding part is arranged at intervals with the mounting part, so that an avoidance groove is formed between the welding part and the mounting part, and the glue digging groove group comprises a first glue digging groove communicated with the avoidance groove. The utility model can solve the problem of stress concentration of the shell structure in the welding process.

Description

Shell structure and lens module

Technical Field

The present utility model relates to camera technology, and more particularly, to a housing structure and a lens module.

Background

With the rapid development of the automobile industry, the application technology of the vehicle-mounted camera is mature, the automobile is provided with the camera as an advanced driving auxiliary system, the optical performance of the lens of the camera module is a very important parameter, and a good lens structure is a key for ensuring the normal operation of the camera.

In the prior art, the structure of an integral upper shell of a camera module is more and more common, and the integral upper shell comprises a lens cone and an upper shell part which are integrally formed.

However, since the integral upper case is directly fixed with the circuit board and welded with the lower case, the structure of the conventional integral upper case is greatly limited, and the phenomenon of uneven wall thickness exists. In the ultrasonic welding process of the upper shell and the lower shell, the integrated upper shell can be subjected to welding stress caused by the assembly fixture, so that the integrated upper shell is deformed to a certain extent, and the structure of the lens is easily damaged at the stress concentration position of the corresponding lens, thereby influencing the optical performance of the lens.

Disclosure of Invention

Accordingly, it is desirable to provide a housing structure and a lens module, which can solve the problem of stress concentration generated in the welding process of the housing structure.

The disclosed embodiments provide a housing structure including:

a lens barrel part, which is provided with a lens cavity for assembling a lens group and a glue drawing groove group positioned around the lens cavity;

a mounting portion integrally extending downward from a bottom surface of the lens barrel portion for mounting a circuit board; and

a welding portion integrally extending downward from a bottom surface of the lens barrel portion for welding a base; the welding part is arranged at intervals with the mounting part, so that an avoidance groove is formed between the welding part and the mounting part, and the glue digging groove group comprises a first glue digging groove communicated with the avoidance groove.

The shell structure that this disclosed embodiment provided, welding portion and installation department interval set up for form between welding portion and installation department and dodge the groove, first draw the gluey groove and dodge the groove intercommunication and be used for reducing the stress of welding portion relative installation department.

In one embodiment, the first glue drawing groove is recessed upward from a groove bottom of the avoiding groove and is arranged around the outer periphery of the mounting portion, so that a step is formed between the welding portion and the lens barrel portion.

So set up, first draw gluey groove from dodging the tank bottom undercut of groove and encircle the periphery of locating the installation department for form the step between welding portion and lens cone portion, make the thickness of installation portion and welding portion become comparatively even, avoid appearing stress concentration problem.

In one embodiment, the mounting portion extends downward and annularly integrally from a bottom surface of the lens barrel portion to form a light-passing cavity, and the lens barrel portion has a second glue-drawing groove communicating with the light-passing cavity. In one embodiment, the lens barrel portion includes a cavity for providing the lens cavity and a support assembly positioned in the second undercut and coupled to the cavity.

So set up, the supporting component is located the second and draws gluey groove and be connected with the cavity, plays fine supporting role to the cavity.

In one embodiment, the support assembly comprises a support ring arranged around the cavity and a plurality of reinforcing ribs distributed around the support ring, and the plurality of reinforcing ribs extend downwards from the second glue drawing groove and are connected with the support ring.

So set up, a plurality of strengthening ribs draw gluey groove downwardly extending from the second and be connected with the support ring, support the effect splendid.

In one embodiment, the glue-drawing groove group further comprises a third glue-drawing groove communicated with the second glue-drawing groove, and the third glue-drawing groove is upwards recessed from the bottom of the second glue-drawing groove and is adjacent to the supporting ring.

The third glue drawing groove is recessed upwards from the bottom of the second glue drawing groove and is adjacent to the supporting ring, so that the thickness of the lens barrel part is reduced, and the stress in the lens barrel part is reduced.

In one embodiment, the number of the third glue-drawing grooves is multiple, and each third glue-drawing groove is arranged between two adjacent reinforcing ribs. In one embodiment, the glue-drawing groove group further comprises a fourth glue-drawing groove communicated with the second glue-drawing groove, and the fourth glue-drawing groove is arranged between the supporting ring and the cavity.

By this arrangement, the stress in the barrel portion can be well reduced.

In one embodiment, the support assembly further comprises a plurality of extension pieces corresponding to the reinforcing ribs one by one, and the extension pieces are arranged in the fourth glue drawing groove and are connected with the support ring and the cavity.

So set up, the extension sets up in fourth draw gluey groove and connect support ring and cavity, and is good to the supporting effect of cavity.

According to another aspect of the present application, the present application further provides a lens module, including:

a housing structure as claimed in any one of the preceding claims;

a lens group, wherein the lens group is arranged at the lens barrel part of the shell structure;

the circuit board is arranged on the mounting part of the shell structure; and

and the base is welded with the welding part.

So set up, because shell structure has subducted the stress of self inside, at shell structure and the welding process of base, then can reduce the influence of stress concentration problem, and then guarantee the normal work of lens group.

Drawings

FIG. 1 is a schematic view of a housing structure according to the present utility model;

FIG. 2 is a schematic view of the housing structure of FIG. 1 from the bottom up;

FIG. 3 is a bottom view of the housing structure of FIG. 1;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

fig. 5 is a partial cross-sectional view of the view of fig. 2.

Reference numerals illustrate:

100. a housing structure; 10. a lens barrel section; 11. a glue groove group; 111. a first glue drawing groove; 112. a second glue drawing groove; 113. a third glue drawing groove; 114. fourth, a glue drawing groove; 12. a cavity; 13. a support assembly; 131. a support ring; 132. reinforcing ribs; 133. an extension member; 20. a mounting part; 30. a welding part; 31. avoiding the groove.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The utility model provides a housing structure 100 and a lens module, which can avoid the problem of stress concentration of the housing structure 100 in the welding process.

Referring to fig. 1 to 5, a housing structure 100 provided by the present utility model includes a lens barrel portion 10, a mounting portion 20 and a welding portion 30, wherein the lens barrel portion 10 has a lens cavity (not shown) for assembling a lens assembly (not shown) and a glue groove set 11 around the lens cavity; a mounting portion 20 integrally extending downward from a bottom surface of the barrel portion 10 for mounting a wiring board (not shown in the drawings); a soldering portion 30 integrally extending downward from the bottom surface of the barrel portion 10 for soldering a base (not shown in the drawings); the welding portion 30 is arranged at a distance from the mounting portion 20 to form a relief groove 31 between the welding portion 30 and the mounting portion 20, and the adhesive taking-out groove group 11 includes a first adhesive taking-out groove 111 communicating with the relief groove 31.

In the conventional art, the integral housing structure 100 is directly fixed with the circuit board and welded with the base, so that the conventional integral housing structure 100 is greatly limited, and the phenomenon of uneven wall thickness exists. In the ultrasonic welding process of the housing structure 100 and the base, the integrated housing structure 100 needs to be pre-installed in an assembly fixture, and then the assembly fixture applies a certain external force to the housing structure 100, and the assembly is completed by means of the plasticity of plastic and the base. However, in this process, the integrated housing structure 100 is subjected to welding stress caused by the assembly fixture, so that it is deformed to a certain extent, and the lens structure is easily damaged at the stress concentration position of the corresponding lens, thereby affecting the optical performance of the lens.

Compared with the traditional shell structure 100 with uneven thick walls, in the process of welding the shell structure 100 and the base, the shell structure 100 can be subjected to welding stress caused by the assembly fixture, so that the shell structure 100 generates certain deformation, and damage to the lens group, such as fracture, poor welding and other phenomena, can be caused, and the optical performance of the lens group is affected. It should be explained that the fracture refers to the phenomenon that the lens set is stressed during the welding and pressing process, so that the stress concentration position is broken. The poor welding refers to a phenomenon that the welding position of the shell structure 100 and the base is deviated due to stress concentration in the welding process of the shell structure 100 and the base, so that a cold joint is generated in a welding area, and the welding strength is insufficient.

The lens barrel portion 10, the mounting portion 20 and the welding portion 30 of the housing structure 100 provided in the embodiment of the disclosure are integrally formed, so that welding of the housing structure 100 to a base can be dispersed, and accordingly stress applied to the lens group is reduced, and reliability of the housing structure 100 is improved.

Specifically, the welding portion 30 is spaced from the mounting portion 20, and is used for forming a relief groove 31 between the welding portion 30 and the mounting portion 20, and the first glue-drawing groove 111 is communicated with the relief groove 31 and is used for reducing stress of the welding portion 30 relative to the mounting portion 20.

In addition, due to the glue-picking treatment of the shell structure 100, the whole wall thickness of the shell structure 100 is reduced, the weight is correspondingly reduced, and the production cost is further reduced.

Referring specifically to fig. 2 to 5, in some embodiments, the first glue groove 111 is recessed upward from the bottom of the relief groove 31 and is disposed around the outer periphery of the mounting portion 20, for forming a step between the welding portion 30 and the barrel portion 10. It should be noted that fig. 2 to 5 are all structural diagrams of the housing structure 100 from the bottom to the top.

So set up, first draw gluey groove 111 is from dodging the tank bottom undercut of groove 31 and encircle the periphery of locating installation department 20 for form the step between welding portion 30 and lens cone portion 10, make the thickness of installation department 20 and welding portion 30 become comparatively even, avoid appearing stress concentration problem, stability is better.

Specifically, the mounting portion 20 extends downward and annularly integrally from the bottom surface of the lens barrel portion 10 to form a light-passing cavity (not shown), and the lens barrel portion 10 has a second undercut 112 communicating with the light-passing cavity.

Preferably, the barrel portion 10 includes a cavity 12 for providing a lens cavity and a support assembly 13 positioned in the second undercut 112 and coupled to the cavity 12. So set up, the supporting component 13 is located the second and draws gluey groove 112 and is connected with cavity 12, plays fine supporting role to cavity 12.

Further, the supporting component 13 includes a supporting ring 131 annularly disposed at the outer periphery of the cavity 12, and a plurality of reinforcing ribs 132 annularly disposed at the outer periphery of the supporting ring 131, where the plurality of reinforcing ribs 132 extend downward from the second glue slot 112 and are connected to the supporting ring 131. In this embodiment, the plurality of reinforcing ribs 132 are uniformly arranged around the supporting ring 131. So set up, a plurality of strengthening ribs 132 extend downwards from the second draw gluey groove 112 and are connected with support ring 131, support effect is splendid.

Preferably, the adhesive picking groove set 11 further includes a third adhesive picking groove 113 in communication with the second adhesive picking groove 112, the third adhesive picking groove 113 being recessed upward from the bottom of the second adhesive picking groove 112 and adjacent to the support ring 131. So configured, the third glue slot 113 is recessed upward from the bottom of the second glue slot 112 and adjacent to the supporting ring 131, for reducing the thickness of the lens barrel 10 and reducing the stress in the lens barrel 10.

Specifically, the number of the third glue grooves 113 is plural, and each third glue groove 113 is disposed between two adjacent reinforcing ribs 132, so that the distribution is uniform, and the stress in the lens barrel 10 is reduced more effectively.

Further, the glue-drawing groove set 11 further includes a fourth glue-drawing groove 114 in communication with the second glue-drawing groove 112, and the fourth glue-drawing groove 114 is disposed between the support ring 131 and the cavity 12. By adopting the arrangement, the thickness of the lens barrel part 10 is reduced by multiple layers, so that the thickness of the lens barrel part 10 is more uniform, and the stress in the lens barrel part 10 can be well reduced.

In some embodiments, the supporting component 13 further includes a plurality of extending members 133 corresponding to the reinforcing ribs 132 one to one, and the plurality of extending members 133 are disposed in the fourth undercut 114 and connect the supporting ring 131 and the cavity 12. So set up, extension piece 133 sets up in fourth draw gluey groove 114 and connects support ring 131 and cavity 12, and is good to the supporting effect of cavity 12.

According to another aspect of the present application, there is further provided a lens module, including a housing structure 100, a lens group, a circuit board, and a base; the lens assembly is arranged on the lens barrel part 10 of the shell structure 100; the circuit board is mounted on the mounting portion 20 of the housing structure 100; the base is welded to the weld 30.

So set up, because the shell structure 100 has already subdued the stress of self inside, in the welding process of shell structure 100 and base, then can reduce the influence of stress concentration problem, and then guarantee the normal work group of lens group.

In this embodiment, the housing structure 100 is fixedly connected to the circuit board, wherein the connection method is preferably but not limited to gluing, welding, etc.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A housing structure, comprising:

a lens barrel part (10), wherein the lens barrel part (10) is provided with a lens cavity for assembling a lens group and a glue drawing groove group (11) positioned around the lens cavity;

a mounting portion (20), the mounting portion (20) integrally extending downward from a bottom surface of the barrel portion (10) for mounting a wiring board; and

a welding portion (30), the welding portion (30) integrally extending downward from a bottom surface of the barrel portion (10) for welding a base; the welding parts (30) are arranged at intervals with the mounting parts (20) so as to form avoidance grooves (31) between the welding parts (30) and the mounting parts (20), and the glue digging groove group (11) comprises first glue digging grooves (111) communicated with the avoidance grooves (31).

2. The housing structure according to claim 1, wherein the first undercut groove (111) is recessed upward from a groove bottom of the escape groove (31) and is provided around an outer periphery of the mounting portion (20) for forming a step between the welded portion (30) and the barrel portion (10).

3. The housing structure according to claim 1, wherein the mounting portion (20) extends downward annularly integrally from a bottom surface of the barrel portion (10) to form a light passing cavity, the barrel portion (10) having a second undercut (112) in communication with the light passing cavity.

4. A housing structure according to claim 3, characterized in that the barrel portion (10) comprises a cavity (12) for providing the lens cavity and a support assembly (13) located in the second undercut (112) and connected to the cavity (12).

5. The housing structure according to claim 4, wherein the supporting component (13) comprises a supporting ring (131) annularly arranged at the periphery of the cavity (12) and a plurality of reinforcing ribs (132) annularly arranged at the periphery of the supporting ring (131), and the plurality of reinforcing ribs (132) extend downwards from the second glue drawing groove (112) and are connected with the supporting ring (131).

6. The housing structure according to claim 5, characterized in that the set of glue-undercut grooves (11) further comprises a third glue-undercut groove (113) communicating with the second glue-undercut groove (112), the third glue-undercut groove (113) being recessed upwards from the bottom of the second glue-undercut groove (112) and adjacent to the support ring (131).

7. The shell structure according to claim 6, wherein the number of the third glue grooves (113) is plural, and each third glue groove (113) is disposed between two adjacent reinforcing ribs (132).

8. The housing structure according to claim 5, characterized in that the glue-drawing groove group (11) further comprises a fourth glue-drawing groove (114) communicating with the second glue-drawing groove (112), the fourth glue-drawing groove (114) being arranged between the support ring (131) and the cavity (12).

9. The housing structure according to claim 8, wherein the supporting component (13) further comprises a plurality of extending members (133) corresponding to the reinforcing ribs (132) one by one, and a plurality of the extending members (133) are disposed in the fourth glue slot (114) and connect the supporting ring (131) and the cavity (12).

10. A lens module, comprising:

the housing structure of any one of claims 1 to 9;

a lens group which is assembled to a lens barrel portion (10) of the housing structure;

a circuit board mounted on the mounting portion (20) of the housing structure; and

and a base welded to the welding portion (30).