Support for preventing AA glue precipitation, camera module and terminal equipment

By incorporating protrusions and grooves in the main body of the bracket, the AA glue is prevented from oozing and overflowing, thus resolving the interference problem between the lens and the bracket. This improves the assembly precision and imaging quality of the camera module and reduces the defect rate.

CN224317894UActive Publication Date: 2026-06-02CHONGQING TIANSHI PRECISION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING TIANSHI PRECISION TECH CO LTD
Filing Date
2025-05-22
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

During the assembly of the optical module, AA glue may precipitate before curing, which will reduce the safe distance between the lens and the bracket, increase the risk of interference between the lens and the bracket, affect the image quality and increase the defect rate.

Method used

A protrusion is provided inside the motor mounting area of ​​the bracket body as a retaining wall, a groove is opened on the top surface to trap the adhesive, and a groove is opened on the outside to provide storage space to prevent the adhesive from separating and overflowing.

Benefits of technology

It effectively prevents AA glue from precipitating, ensures a safe distance between the lens and the bracket, improves assembly accuracy and imaging quality, reduces defect rate, and increases production efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224317894U_ABST
    Figure CN224317894U_ABST
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Abstract

The utility model relates to a support that prevents AA glue to separate out, camera module and terminal equipment, including support main part, the support main part includes opposite first surface and second surface, be equipped with the through -hole of passing through first surface with second surface on the support main part, first surface has motor installation area, first surface is equipped with the bulge that surrounds the through -hole a circle in the inside of motor installation area position, and is equipped with the first recess on the top surface of bulge. The utility model can effectively prevent AA glue to separate out.
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Description

Technical Field

[0001] This utility model relates to the field of camera module technology, specifically to a bracket, camera module and terminal device for preventing AA glue from oozing out. Background Technology

[0002] With the rapid development of consumer electronics products such as smartphones, digital cameras, and security monitoring systems, the demand for optical modules (such as camera modules, etc.) has increased. Figure 1 As shown, the performance requirements for camera modules (including brackets, circuit boards, filters, image sensors, motors, and lenses) are increasingly demanding. As the core component of an imaging system, the assembly precision and stability of the optical module directly affect image quality. During the assembly process of optical modules, AA (Active Alignment) technology is widely used in the manufacturing of high-end optical modules because it can precisely adjust the relative position between the lens and the image sensor to achieve optimal imaging results.

[0003] In the AA process, AA adhesives (such as UV adhesives, thermosetting adhesives, etc.) are typically used to fix the motor to the bracket, and an active calibration mechanism ensures precise alignment between the lens 6 and the image sensor 4 during the curing process. In the actual production process, the adhesive application is performed on a batch of brackets. After all brackets in the batch have completed the adhesive application process, they are then placed on the equipment for AA processing. However, during the interval between the completion of the adhesive application and the bonding of the motor, the AA adhesive (such as UV adhesives, thermosetting adhesives, etc.) may precipitate.

[0004] Specifically, when AA glue seeps out onto the support surface below the lens, this seeped-out glue occupies space that was originally designed as a safe distance between the lens and the support. In optical module design, a certain safe distance is typically maintained between the lens and the support to accommodate dimensional changes caused by manufacturing tolerances, thermal expansion, and other factors, preventing interference between the lens and the support and ensuring proper focusing of the module. However, the seepage of AA glue reduces this safe distance, and may even eliminate it entirely.

[0005] Given the inherent manufacturing tolerances in the lens itself, this reduction in the safety distance significantly increases the risk of interference between the lens and the mounting bracket. Once interference occurs, the lens will be unable to move freely to the optimal focusing position, causing the module to fail to focus and resulting in malfunctions such as blurry or distorted images. This not only affects the performance of the optical module but also increases the defect rate during production, raising manufacturing costs.

[0006] Therefore, it is necessary to develop a new bracket, camera module, and terminal device to prevent AA glue from oozing out. Utility Model Content

[0007] The purpose of this invention is to provide a bracket, camera module, and terminal device that prevent AA glue from oozing out, which can effectively prevent AA glue from oozing out.

[0008] In a first aspect, the present invention provides a support for preventing the exudation of AA glue, comprising a support body, the support body comprising a first surface and a second surface opposite to each other, and a light-transmitting hole penetrating the first surface and the second surface;

[0009] The first surface has a motor mounting area;

[0010] On the first surface, there is a protrusion surrounding the light-transmitting hole on the inner side of the motor mounting area, and a first groove is formed on the top surface of the protrusion.

[0011] Optionally, the first groove extends through the entire protrusion.

[0012] Optionally, a second groove is formed on the first surface outside the motor mounting area, surrounding the motor mounting area.

[0013] Optionally, a plurality of third grooves are provided in the motor mounting area, and each third groove is connected to the second groove.

[0014] Secondly, the camera module described in this utility model adopts the bracket for preventing AA glue exudation as described in this utility model.

[0015] Thirdly, the terminal device described in this utility model employs the camera module described in this utility model.

[0016] The beneficial effects of this utility model are:

[0017] (1) Effectively prevents AA glue from separating:

[0018] This invention features a raised ring around the motor mounting area of ​​the bracket body. This ring acts as a barrier, effectively blocking the AA glue that has seeped out and preventing it from spreading further to the critical area between the lens and the bracket body. This design fundamentally solves the problem of poor module focusing caused by AA glue seepage.

[0019] (2) Enhance the effect of preventing glue spillage:

[0020] A first groove is created on the raised top surface. This design helps to trap some of the adhesive as it climbs the slope, reducing the risk of adhesive overflowing onto the support surface below the lens. This improvement further enhances the anti-overflow effect, ensuring the relative positional stability between the lens and the support body.

[0021] (3) Reduce glue exudation and provide storage space:

[0022] A second groove is created on the outer side of the motor mounting area, and several third grooves are created on the motor mounting area that communicate with the second groove. These designs provide additional storage space for AA adhesive. When adhesive leaks out, some of it can flow into these grooves, thereby reducing the risk of adhesive spillage and ensuring the bonding strength between the motor and the bracket body.

[0023] (4) Improve the assembly precision and imaging quality of the camera module:

[0024] Through the above-mentioned design of preventing glue overflow and reducing glue exudation, the camera module of this application can ensure a safe distance between the lens and the bracket body during the assembly process, thereby ensuring that the lens can move freely to the optimal focusing position.

[0025] (5) Reduce the defect rate and improve manufacturing cost-effectiveness:

[0026] Because the bracket design of this application effectively prevents AA glue exudation and overflow, it significantly reduces the defect rate during the production process. This not only reduces the additional costs incurred due to rework or scrap, but also improves production efficiency and manufacturing cost-effectiveness. Attached Figure Description

[0027] Figure 1 This is a structural diagram of an existing camera module;

[0028] Figure 2 This is a schematic diagram of the structure of the stent for preventing AA glue exudation described in the embodiments of this application;

[0029] Figure 3 This is a schematic diagram of the camera module described in the embodiments of this application;

[0030] Figure 4 This is a partial schematic diagram of the camera module described in the embodiments of this application;

[0031] In the diagram: 1. Support body, 11. Light-transmitting hole, 12. Protrusion, 13. First groove, 14. Second groove, 15. Third groove, 2. Circuit board, 3. Filter, 4. Image sensor, 5. Motor, 6. Lens. Detailed Implementation

[0032] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0033] like Figure 2 As shown in the embodiment of this application, a support for preventing AA glue exudation includes a support body 11, which includes a first surface and a second surface facing each other. The support body 11 is provided with a light-transmitting hole 11 penetrating the first surface and the second surface to allow light to pass through for imaging.

[0034] like Figures 2 to 4 As shown, the first surface has a motor mounting area. The motor 5 is bonded to this motor mounting area using AA glue to achieve a fixed connection between the motor 5 and the bracket body 1. To prevent the AA glue from precipitating out during the curing process and affecting the safe distance between the lens 6 and the bracket body 1, this embodiment of the application provides a protrusion 12 surrounding the light-transmitting hole 11 on the first surface, inside the motor mounting area. This protrusion 12 acts as a barrier, effectively blocking the precipitated AA glue and preventing its further diffusion.

[0035] like Figures 2 to 4 As shown, in one possible embodiment, to prevent the AA glue from overflowing onto the top surface of the retaining wall (i.e., the top surface of the protrusion 12) during the slope climbing process and then onto the support surface below the lens 6, a first groove 13 is provided on the top surface of the protrusion 12. The design of this first groove 13 can intercept part of the glue during the slope climbing, reducing the risk of glue overflow.

[0036] By setting the full-circle protrusion 12 as a barrier, the bracket in this embodiment can effectively block the AA glue that has seeped out, preventing it from affecting the safe distance between the lens 6 and the bracket body 1. At the same time, the design of the first groove 13 further enhances the anti-overflow effect, ensuring the relative position stability between the lens 6 and the bracket body 1, thereby improving the assembly accuracy and imaging quality of the camera module.

[0037] like Figures 2 to 4 As shown, in one possible embodiment, a support for preventing AA glue exudation also has a second groove 14 on the first surface, outside the motor mounting area, surrounding the motor mounting area. This second groove 14 is used to retain a portion of the AA glue, reducing the amount of AA glue exuded during the curing process.

[0038] likeFigures 2 to 4 As shown, in one possible embodiment, to provide more adhesive storage space in the motor mounting area, a plurality of third grooves 15 are provided in the motor mounting area, and each third groove 15 is connected to a second groove 14. Thus, when AA adhesive precipitates, some of the AA adhesive can flow into the third grooves 15 and the second grooves 14, thereby reducing the risk of adhesive spillage.

[0039] By creating a second groove 14 and a third groove 15 on the outer side of the motor mounting area, the bracket in this embodiment can further reduce the amount of AA glue that has seeped out and provide storage space for it. This design not only improves the anti-overflow effect but also ensures the bonding strength between the motor 5 and the bracket body 1, thereby improving the stability and reliability of the camera module.

[0040] like Figure 3 and Figure 4 As shown in this embodiment, a camera module includes a lens 6, a motor 5, a bracket, an image sensor 4, a filter 3, a circuit board 2, and connectors. The image sensor 4 is mounted on the circuit board 2 and is used to convert received light signals into electrical signals. The filter 3 is positioned in front of the optical path of the image sensor 4 and is used to filter out light of a specific wavelength, allowing only visible light to pass through. The bracket is used to fix the filter 3 and provide mounting support for the motor 5. The lens 6 is mounted on the motor 5 and is used to focus external light onto the image sensor 4. The bracket used is the anti-AA glue bracket as described in this embodiment.

[0041] Thanks to the use of a bracket to prevent AA glue from seeping out, the camera module in this embodiment can effectively prevent AA glue from seeping out during assembly and affecting the safe distance between the lens 6 and the bracket, thereby ensuring that the lens 6 can move freely to the optimal focusing position. This design not only improves the focusing accuracy and image quality of the camera module, but also reduces the defect rate in the production process and improves manufacturing cost efficiency.

[0042] In this application embodiment, a terminal device employs a camera module as described in this application embodiment. The terminal device can be a consumer electronics product such as a smartphone, tablet computer, or digital camera. The camera module, as the imaging component of the terminal device, is responsible for capturing images and videos.

[0043] Thanks to the camera module with anti-AA glue exudation function, the terminal device in this embodiment achieves significantly improved imaging performance. Specifically, by ensuring a safe distance between the lens 6 and the bracket, the camera module can achieve more precise focusing and clearer imaging results.

[0044] This is a preferred embodiment of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A stent for preventing AA glue exudation, comprising a stent body (1), the stent body (1) having opposing first and second surfaces, and the stent body (1) having a light-transmitting hole (11) penetrating the first and second surfaces; characterized in that, The first surface has a motor mounting area; On the first surface, a protrusion (12) is provided around the light-transmitting hole (11) on the inner side of the motor mounting area, and a first groove (13) is provided on the top surface of the protrusion (12).

2. The stent for preventing AA glue exudation according to claim 1, characterized in that, The first groove (13) extends through the entire protrusion (12).

3. The stent for preventing AA glue exudation according to claim 1, characterized in that, On the first surface, a second groove (14) is formed around the motor mounting area on the outer side of the motor mounting area.

4. The stent for preventing AA glue exudation according to claim 3, characterized in that, Several third grooves (15) are provided in the motor mounting area, and each third groove (15) is connected to the second groove (14).

5. A camera module, characterized in that, A stent for preventing AA glue exudation is used as described in any one of claims 1 to 4.

6. A terminal device, characterized in that, The camera module as described in claim 5 is used.