CN-117555101-B - Lens protection structure

CN117555101BCN 117555101 BCN117555101 BCN 117555101BCN-117555101-B

Abstract

The application provides a lens protection structure, which comprises a body attached to a lens module and forming a containing cavity together with the lens module, wherein the containing cavity is used for containing a lens, an air escape structure which is communicated with the containing cavity and the outside is arranged on the body, the air escape structure comprises an air flow channel which is communicated with the containing cavity and the outside, the air flow channel comprises a first opening which is communicated with the outside and a second opening which is communicated with the containing cavity, the air escape structure further comprises a turning part connected to the air flow channel and a retaining part connected to the turning part, the turning part is used for blocking the air flow passing through the air flow channel, and the retaining part is used for retaining impurities in the blocked air flow. Therefore, the lens protection structure provided by the application can prevent the lens from forming a closed space at the lens, keep the air circulation inside and outside the accommodating cavity and prevent foreign matters such as external dust from adhering to the lens while protecting the lens.

Inventors

HAO SHUQING
DING SHENGJIE
HUANG DINGNAN
ZHANG RUI

Assignees

晋城三赢精密电子有限公司

Dates

Publication Date: 20260508
Application Date: 20220805

Claims (10)

1. A lens protection structure, comprising: The lens module comprises a body, a lens module and a lens module, wherein the body is used for being attached to the lens module and forming a containing cavity together with the lens module, the containing cavity is used for containing a lens, and an air escape structure which is communicated with the containing cavity and the outside is arranged on the body; The gas escape structure comprises: the air flow channel is used for communicating the accommodating cavity with the outside, and comprises a first opening communicated with the outside and a second opening communicated with the accommodating cavity; The direction changing part is connected to the air flow channel and used for blocking the air flow passing through the air flow channel; And the retaining part is connected with the turning part and is used for retaining impurities in the air flow when the air flow passes through the turning part to be blocked.
2. The lens protecting structure according to claim 1, wherein the retaining portion includes a retaining chamber for containing retained foreign substances, the retaining chamber being in communication with the air flow passage and shaped as an invaginated groove.
3. The lens protection structure of claim 1, wherein the body comprises: A base; A protective film fixed to the base; an adhesive layer for attaching the base to the lens module, The base, the protection film and the glue layer are hollow structures so as to form the accommodating cavity after being attached to the lens module, the base comprises a side wall surrounding the accommodating cavity, a first surface and a second surface opposite to the first surface are arranged on the side wall, the protection film is fixed on the first surface, the base is attached to the lens module through the glue layer on the second surface, and the air escape structure is arranged on the side wall of the accommodating cavity.
4. A lens protection structure according to claim 3, wherein the air flow passage includes: A first transverse channel disposed in a sidewall of the base and extending parallel to the first surface to the first opening; A second transverse channel disposed on a sidewall of the base and extending parallel to the first surface to the second opening, and A vertical passage connected between the first transverse passage and the second transverse passage, wherein, The diversion portion is arranged at the joint of the first transverse channel and the vertical channel and the joint of the second transverse channel and the vertical channel, the retaining portion comprises a retaining bin of the diversion portion arranged at the joint of the second transverse channel and the vertical channel, and the retaining bin extends from the diversion portion to the second surface.
5. The lens protection structure of claim 4, wherein the air escape structure further comprises a direction changing portion further provided at a junction of the first lateral passage and the vertical passage; the retaining portion further comprises a retaining bin connected to the turning portion at the connection portion of the first transverse channel and the vertical channel, and the retaining bin extends from the turning portion to the accommodating cavity.
6. A lens protection structure according to claim 3, wherein the air flow passage includes: A first transverse channel disposed in a sidewall of the base and extending parallel to the first surface to the first opening; A second transverse channel disposed on a sidewall of the base and extending parallel to the first surface to the second opening, and A first vertical hole and a second vertical hole, wherein, The first vertical holes are parallel to the second vertical holes and are staggered, one end of each first vertical hole is communicated with the first transverse channel, and the other end of each first vertical hole is communicated with the second vertical hole; One end of the second vertical hole is communicated with the first vertical hole, and the other end of the second vertical hole is communicated with the second transverse channel; the direction changing part is arranged at the joint of the first vertical hole and the first transverse channel, the joint of the first vertical hole and the second vertical hole and the joint of the second vertical hole and the second transverse channel; the retaining portion comprises a retaining bin arranged at the bottom of the first vertical hole and extending towards the second surface, and a partition wall is arranged between the retaining bin and the second vertical hole to separate the retaining bin from the second vertical hole.
7. The lens protecting structure according to claim 2, wherein the indwelling chamber is formed in a conical shape or a polygonal pyramid shape.
8. The lens protecting structure according to claim 2, wherein the indwelling chamber is provided with an adhesive portion for adhering foreign substances entering the indwelling chamber.
9. The lens protection structure of claim 6, wherein the diameters of the first vertical hole and the second vertical hole are each 0.6mm or more.
10. The lens protecting structure of claim 3, wherein the base is an injection molded part.

Description

Lens protection structure Technical Field The present application relates to the field of electronic and optical devices, and in particular, to a lens protection structure. Background In the production process of the conventional lens module, after the lens is mounted on the lens base, a protection structure needs to be provided for the lens so as to prevent the lens from being damaged in the subsequent process or transportation. The cotton base of protection architecture use bubble that is comparatively commonly used at present, and the cotton base gas permeability of bubble is good, can avoid forming airtight space between camera lens and protection film, but can produce a large amount of dust, piece etc. in the use, be infected with and pollute the camera lens on the camera lens. In order to overcome the defects, the injection molding base is generally adopted to replace the foam base at present, but the injection molding base is attached to the lens module, a closed space is formed between the lens and the protective film, and under the condition that the lens module is heated, gas in the closed space expands, so that the protective film at the top of the injection molding lens protective film is jacked up and even falls off. Therefore, the injection molding lens protection film needs to be provided with an air escape hole for discharging air, so that a closed space is avoided. However, in the existing air escape hole structure of the injection molding type protective film, although a closed space is avoided from being formed between the lens and the protective film, foreign matters such as external dust are difficult to be prevented from entering the protective film, and then the foreign matters adhere to the lens to pollute the lens. Disclosure of Invention In view of the above, it is necessary to provide a lens protection structure that can prevent foreign matters such as external dust from adhering to the lens while avoiding the formation of a closed space at the lens. The application provides a lens protection structure, which comprises a body, a holding cavity, a retaining part and a reversing part, wherein the body is used for being attached to a lens module and jointly forming the holding cavity with the lens module, the holding cavity is used for holding a lens, an air escape structure which is communicated with the holding cavity and the outside is arranged on the body, the air escape structure comprises an air flow channel, the holding cavity is communicated with the outside, the air flow channel comprises a first opening which is communicated with the outside and a second opening which is communicated with the holding cavity, the reversing part is connected to the air flow channel and used for blocking air flow passing through the air flow channel, and the retaining part is connected to the reversing part and used for retaining impurities in the air flow when the air flow is blocked by the reversing part. Therefore, after the lens protection structure is adhered to the lens module, the lens of the lens module is accommodated in the accommodating cavity of the body, damage in the subsequent manufacturing process and the transportation process is avoided, and the air escape structure can keep the accommodating cavity in circulation with external air and keep impurity in air in the retaining part, so that the impurity in the external air is prevented from entering the accommodating cavity to pollute the lens. In other embodiments, the indwelling portion includes an indwelling cartridge for containing the indwelling impurity, the indwelling cartridge being in communication with the airflow channel and shaped as an invaginated groove. In other embodiments, the body comprises a base, a protective film and an adhesive layer, wherein the protective film is fixed on the base, the adhesive layer is used for attaching the base to the lens module, the base, the protective film and the adhesive layer are of hollow structures so as to form a containing cavity after being attached to the lens module, the base comprises a side wall surrounding the containing cavity, a first surface and a second surface opposite to the first surface are arranged on the side wall, the protective film is fixed on the first surface, the base is attached to the lens module on the second surface through the adhesive layer, and the air escape structure is arranged on the side wall of the containing cavity. In other embodiments, the airflow channel includes a first transverse channel disposed at a sidewall of the base and extending parallel to the first surface to the first opening; A second transverse channel disposed on a sidewall of the base and extending parallel to the first surface to the second opening, and The device comprises a first transverse channel, a second transverse channel, a vertical channel and a direction changing part, wherein the vertical channel is connected between the first transverse channel and the second