CN219740502U - Camera module - Google Patents

Abstract

The utility model relates to the technical field of packaging, in particular to a camera module. The utility model provides a camera module, comprising: a substrate provided with a through hole; the cap part is arranged at one side of the substrate in a mode corresponding to the through hole, and a cavity is formed between the inner side of the cap part and the substrate; the lens is arranged on the other side of the substrate, the lens is provided with supporting feet penetrating into the through holes, the lens and the substrate are bonded and fixed by glue, and the glue enters the cavity and surrounds the supporting feet in the through holes. The utility model also provides a camera module, comprising: a substrate; the lens is arranged on one side of the substrate, and one end of the lens, which is close to the substrate, is provided with supporting feet; the end parts of the supporting feet and the base plate are bonded by glue, and grooves are formed in bonding parts of the base plate and/or the end parts of the supporting feet. The adhesive strength can be improved and the production and manufacturing costs can be saved without the need of a cleaning process and a long UV irradiation time.

Description

Camera module

Technical Field

The utility model relates to the technical field of packaging, in particular to a camera module.

Background

The camera module is an electronic device which is widely used at present and is used for capturing images, can be applied to portable equipment such as notebooks, mobile phones and the like, and can also be applied to intelligent equipment such as intelligent household appliances, intelligent vehicles and the like. The camera module comprises a lens, a substrate and other components, and an image sensor is arranged on the surface of the substrate. The lens and the substrate are typically bonded using glue.

In some camera modules in the prior art, after focusing is completed, ultraviolet rays are firstly used for irradiating glue to enable the glue to be primarily cured, so that external light can be accurately focused on the relative position relation of the image sensor between the fixed lens and the substrate, and then the glue is completely cured in a subsequent process. After the glue is primarily cured by ultraviolet irradiation, the primarily cured glue needs to have certain bonding strength for semi-finished product turnover.

In order to ensure that the lens and the substrate have enough bonding strength when being bonded, the ultraviolet irradiation time can be prolonged, or the part to be glued on the surface of the substrate is cleaned before being bonded by glue, so that the lens and the substrate are prevented from being bonded unstably due to the influence of stains on the glue.

However, increasing the cleaning process or the ultraviolet irradiation time greatly increases the production cost. Therefore, how to provide a camera module can improve the bonding strength, and save the production and manufacturing cost, and the problem to be solved is solved.

Disclosure of Invention

Aiming at the problem that the production and manufacturing cost is high due to the fact that the bonding strength of the camera module in the prior art is guaranteed, the utility model provides the camera module, which comprises the following components: a substrate provided with a through hole; the cap part is arranged at one side of the substrate in a mode corresponding to the through hole, and a cavity is formed between the inner side of the cap part and the substrate; the lens is arranged on the other side of the substrate, the lens is provided with supporting feet penetrating into the through holes, the lens and the substrate are bonded and fixed by glue, and the glue enters the cavity and surrounds the supporting feet in the through holes.

According to the technical scheme, the contact area between the supporting leg of the lens and the substrate as well as the glue is increased, specifically, the contact part of the supporting leg and the glue comprises the surface of the part of the supporting leg penetrating into the through hole and the surface of the part entering into the cavity, and the contact part is not limited to the bottom end face of the supporting leg in the prior art. The contact part of the substrate and the glue comprises the inner wall of the cavity, the inner wall surface of the through hole and the like. The contact areas of the supporting legs, the base plate and the glue are increased, so that the camera module provided by the utility model can effectively improve the bonding strength of the lens and the base plate, and can meet the bonding strength requirement when the glue is primarily cured under the condition that a cleaning procedure is not required to be increased or the ultraviolet irradiation time is prolonged.

Preferably, at least a part of the glue covers the surface of the substrate close to the lens side.

According to the technical scheme, after the glue is solidified, the glue is embedded between the supporting legs and the substrate, so that a necking structure with larger cross section at the upper end part and the lower end part and narrower middle cross section is formed. On the one hand, the glue overflowed to the upper surface of the cover substrate can further increase the contact area between the glue and the substrate and between the glue and the support pins, so that the bonding strength is improved; on the other hand, the glue with the necking structure can be tightly embedded into the space between the base plate and the supporting legs, so that the positions of the supporting legs are locked, the supporting legs are prevented from moving or shaking relative to the base plate, and the fixing stability is improved.

Preferably, the cap is welded to the base plate.

According to the technical scheme, the firmness of connection between the cap and the substrate is improved through welding connection, and the tightness of the connection between the cap and the substrate is improved, so that the tightness of a cavity formed between the cap and the substrate is improved, and the glue is prevented from leaking after entering the cavity during dispensing.

Preferably, the glue is a UV heat curable glue.

According to the technical scheme, the UV heat-curing glue is a single-component glue with a dual-curing mechanism, and can be cured by UV, heat and UV+heat. Through accurate control point glue volume, can make unnecessary glue spill over to the upper side of cover base plate after inserting the supporting legs, in the process of first pass, glue of base plate upper side and glue in the through-hole can be shone by the ultraviolet ray, consequently can utilize the UV curing component in the UV thermosetting glue, through this part of glue of ultraviolet irradiation, preliminary fixed camera lens and base plate, and in the later process, the reuse heating mode carries out effective solidification to the glue in the cavity that the ultraviolet ray is difficult to shine.

Preferably, the end portion of the support foot has a leg portion having a cross-sectional dimension smaller than the through hole and the main body portion of the support foot has a cross-sectional dimension larger than the through hole.

According to the technical scheme, the end part of the supporting leg is provided with the pillar part, the cross section size of the pillar part is smaller than that of the through hole, so that on one hand, the glue can fill the gap between the pillar part and the through hole, the bonding firmness between the pillar part and the through hole is improved, and on the other hand, a sufficient space is reserved for adjusting the position of the lens before preliminary fixing, and the focusing adjustment of the lens is facilitated. The cross section size of the main body part of the supporting leg is larger than that of the through hole, so that the main body part of the supporting leg is prevented from sinking into the through hole, and the connection stability of the lens and the substrate is ensured.

The utility model also provides a camera module, comprising: a substrate; the lens is arranged on one side of the substrate, and one end of the lens, which is close to the substrate, is provided with supporting feet; the end parts of the supporting feet and the base plate are bonded by glue, and grooves are formed in bonding parts of the base plate and/or the end parts of the supporting feet.

According to the technical scheme, the grooves have larger surface area than the plane, so that the surface area of the bonding part of the substrate is increased by the grooves arranged on the substrate, and the surface area of the end part of the supporting leg is increased by the grooves arranged on the supporting leg. Therefore, the contact area of the lens, the substrate and the glue is increased, and the groove also has a limiting effect on the glue, so that the camera module provided by the utility model can effectively improve the bonding strength of the lens and the substrate, and can meet the bonding strength requirement when the glue is primarily cured under the condition that a cleaning procedure is not required to be increased or the ultraviolet irradiation time is prolonged.

Preferably, the end portions of the support legs are expanded and extended toward the outer periphery in a direction approaching the substrate.

According to the technical scheme, the end part of the supporting leg expands and extends towards the periphery along the direction close to the base plate, so that the end part area of the supporting leg can be increased, the contact area with glue is increased, and the firmness of bonding is improved. In addition, the support stability of the support leg is improved due to the increase of the support area of the end part of the support leg.

Preferably, the recess is an arcuate recess provided at the end of the support foot.

According to the technical scheme, the arch-shaped groove can bear the pressure from the upper load and downwards transfer the pressure to the end part of the supporting leg, so that the bearing effect is better, and the stability of the supporting leg is improved.

Preferably, the grooves are provided on the surface of the substrate and have a shape matching the cross-sectional shape of the ends of the support legs.

According to the technical scheme, the shape of the groove is matched with the cross-sectional shape of the end part of the supporting leg, so that the bonded groove can be more attached to the end part of the supporting leg, and the connection stability of the lens and the substrate is improved.

Preferably, the support feet and the lens are integrally formed.

According to the technical scheme, the integrated forming reduces the total number of parts, is convenient to process and manufacture, is beneficial to reducing the production and manufacturing cost, and has the advantage of stable structure.

Drawings

Fig. 1 is an exploded view of a camera module according to a first embodiment of the present utility model;

FIG. 2 is a partial cross-sectional view of a camera module according to a first embodiment of the present utility model;

FIG. 3 is an exploded view of a camera module according to a second embodiment of the present utility model;

fig. 4 is a schematic perspective view of a camera module according to a second embodiment of the present utility model.

Reference numerals: 1, a substrate; 2 through holes; 3 cap part; a 4 chamber; 5 lens; 6 supporting feet; 7, glue; 8 pillar sections; 9 grooves; 91 a first groove; 92 second grooves.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

First embodiment

Fig. 1 is an exploded view of a camera module according to a first embodiment of the present utility model, and fig. 2 is a partial cross-sectional view of the camera module according to the first embodiment of the present utility model.

As shown in fig. 1 and 2, the present embodiment provides a camera module, which includes a substrate 1 and a cap 3, a through hole 2 is provided on the substrate 1, the cap 3 is provided on one side of the substrate 1 and corresponds to the through hole 2, the outer edge of the cap 3 is connected to the substrate 1, and a cavity 4 is formed between the inner side and the substrate 1.

The lens 5 is arranged on the other side of the substrate 1 facing away from the cap 3, i.e. on the upper side of the substrate 1 in fig. 1 and 2. The lens 5 has a supporting leg 6 penetrating into the through hole 2, and the camera module in this embodiment uses glue 7 to bond and fix the lens 5 and the substrate 1, and the glue 7 enters the cavity 4 and surrounds the supporting leg 6 in the through hole 2.

In the above manner, the contact area of the supporting leg 6 of the lens 5 and the substrate 1 with the glue 7 is increased, and specifically, the contact portion of the supporting leg 6 with the glue 7 includes the surface of the portion where the supporting leg 6 penetrates the through hole 2 and the surface of the portion that enters the inside of the chamber 4, not limited to the bottom end face of the supporting leg 6 in the related art. The contact portion between the substrate 1 and the glue 7 includes the inner wall of the cavity 4 and the inner wall surface of the through hole 2. Because the contact areas of the supporting legs 6 and the base plate 1 and the glue 7 are increased, the camera module provided by the embodiment can effectively improve the bonding strength of the lens 5 and the base plate 1, and can meet the bonding strength requirement when the glue is primarily cured without increasing a cleaning procedure or prolonging the ultraviolet irradiation time.

In this embodiment, part of the glue 7 also covers the surface of the substrate 1 on the side close to the lens 5, i.e. the upper surface of the substrate 1 in fig. 2. In the above manner, the glue 7 is embedded between the supporting legs 6 and the substrate 1 after being cured, so that a necking structure with larger cross section at the upper end and the lower end and narrower middle cross section is formed. On the one hand, the glue 7 overflowing to cover the upper surface of the substrate 1 can further increase the contact area between the glue 7 and the substrate 1 and the supporting feet 6, so that the bonding strength is improved; on the other hand, the glue 7 with the necking structure can be tightly embedded into the space between the base plate 1 and the supporting legs 6, the positions of the supporting legs 6 are locked, the supporting legs 6 are prevented from moving or shaking relative to the base plate 1, and the fixing stability is improved.

In the present embodiment, the glue 7 is a UV heat curable glue. The UV heat curable glue is a single component glue 7 with a dual cure mechanism, which can be UV cured as well as heat cured, or UV + heat cured. Through accurate control point glue volume, can make unnecessary glue 7 spill over to the upper side of cover base plate 1 after inserting supporting legs 6, in the process of first pass, glue 7 and the glue 7 in the through-hole 2 of base plate 1 can be shone by the ultraviolet ray, consequently can utilize the UV curing component in the UV thermosetting glue, through this part of ultraviolet ray irradiation glue 7, preliminary fixed camera lens 5 and base plate 1, and in the process of later pass, reuse the heating method carries out effective solidification to the glue 7 in the cavity 4 that the ultraviolet ray is difficult to shine.

In the present embodiment, the cap 3 is a sheet metal member having a shape with one end open and the other end closed, and the outer edge of the open end of the cap 3 is welded to the periphery of the through hole 2 of the substrate 1. The welding connection improves the firmness of the connection between the cap part 3 and the substrate 1 and improves the tightness of the connection part between the cap part 3 and the substrate 1, so that the tightness of the cavity 4 formed between the cap part 3 and the substrate 1 is improved, and the glue 7 is ensured not to leak after entering the cavity 4 during dispensing.

Further, the end of the supporting leg 6 is provided with a pillar part 8, the cross section size of the pillar part 8 is smaller than that of the through hole 2, on one hand, the glue 7 can fill the gap between the pillar part 8 and the through hole 2, the bonding firmness between the pillar part 8 and the through hole 2 is improved, on the other hand, a sufficient space is reserved for adjusting the position of the lens 5 before preliminary fixing, and focusing adjustment of the lens 5 is facilitated. The cross section size of the main body part of the supporting leg 6 is larger than that of the through hole 2, so that the main body part of the supporting leg 6 is prevented from sinking into the through hole, and the lens 5 is ensured to be connected stably with the substrate 1.

To sum up, in this embodiment, the supporting leg 6 of the lens 5 not only penetrates into the through hole 2, but also penetrates into the cavity 4 formed between the inner side of the cap 3 and the substrate 1, and the glue 7 enters into the cavity 4 and surrounds the supporting leg 6 in the through hole 2, so that the contact area between the glue 7 and the supporting leg 6 as well as between the glue 7 and the substrate 1 is increased, and further the bonding strength between the glue 7 and the lens 5 and the bonding strength between the glue 7 and the substrate 1 are increased. The camera module provided by the embodiment does not need a cleaning procedure, and the UV irradiation time is shorter, so that higher bonding strength between the lens 5 and the substrate 1 can be ensured. The camera module provided by the embodiment improves the bonding strength and simultaneously saves the production and manufacturing cost.

Second embodiment

Fig. 3 is an exploded view of a camera module according to a second embodiment of the present utility model, and fig. 4 is a perspective view of the camera module according to the second embodiment of the present utility model. As shown in fig. 3 and 4, the present embodiment provides a camera module. The camera module comprises a substrate 1 and a lens 5, wherein the lens 5 is arranged on one side of the substrate 1, and one end, close to the substrate 1, of the lens 5 is provided with a supporting leg 6. The end of the supporting leg 6 is bonded to the substrate 1 by glue 7, and grooves 9 are formed in the bonding portion of the substrate 1 and the end of the supporting leg 6.

The recess 9 has a larger surface area than the plane, and the recess 9 includes a first recess 91 provided in the substrate 1 and a second recess 92 provided in the support leg 6. The first grooves 91 increase the surface area of the bonding site of the substrate 1, and the second grooves 92 increase the surface area of the end portions of the support pins 6. From this increased the area of contact of camera lens 5, base plate 1 and glue 7 to recess 9 still has the spacing effect to glue 7, thereby makes the bonding strength that camera module that this embodiment provided can effectively improve camera lens 5 and base plate 1, under the condition that need not to increase cleaning procedure or extension ultraviolet irradiation time, can satisfy the bonding strength requirement when glue 7 preliminary solidification.

In other embodiments of the present utility model, the grooves 9 may be provided only at the ends of the support legs 6 or only at the bonding portions of the substrate 1, which is not particularly limited herein.

In the present embodiment, the second groove 92 is an arch-shaped groove provided at the end of the support foot 6. The arch-shaped groove can bear the pressure from the upper load and downwards transmit the pressure to the end part of the supporting leg 6, so that the bearing effect is better, and the stability of the supporting leg 6 is improved.

In other embodiments of the present utility model, the grooves 9 are not limited to arch grooves, but may be grooves 9 of other shapes and structures, and are not particularly limited herein.

Further, the end portions of the support legs 6 are expanded and extended toward the outer periphery in the direction approaching the base plate 1. The end of the supporting leg 6 expands and extends to the periphery along the direction close to the substrate 1, so that the end area of the supporting leg 6 can be increased, the contact area with the glue 7 is further increased, and the bonding firmness is improved. In addition, the support stability of the support leg 6 is improved due to the increase of the support area of the end of the support leg 6.

In this embodiment, the shape of the first groove 91 is matched with the cross-sectional shape of the end of the supporting leg 6, so that the bonded first groove 91 can be more attached to the end of the supporting leg 6, which is beneficial to improving the connection stability of the lens 5 and the substrate 1.

In the present embodiment, the support leg 6 and the lens 5 are integrally molded. The integrated forming reduces the total number of parts, is convenient to process and manufacture, is favorable for reducing the production and manufacturing cost, and has the advantage of stable structure.

Those skilled in the art will appreciate that the specific features of the various embodiments may be adaptively split or combined. Such splitting or combining of specific technical features does not cause the technical solution to deviate from the principle of the present utility model, and therefore, the technical solution after splitting or combining falls within the protection scope of the present utility model. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A camera module, comprising:

a substrate provided with a through hole;

a cap portion provided on one side of the substrate so as to correspond to the through hole, and forming a chamber between an inner side of the cap portion and the substrate;

the lens is arranged on the other side of the substrate, the lens is provided with supporting feet penetrating into the through holes, the lens is fixedly bonded with the substrate by glue, and the glue enters the cavity and surrounds the supporting feet in the through holes.

2. The camera module of claim 1, wherein at least a portion of the glue covers a surface of the substrate on a side proximate to the lens.

3. The camera module of claim 1, wherein the cap is solder-connected to the substrate.

4. The camera module of claim 1, wherein the glue is a UV heat curable glue.

5. The camera module of claim 1, wherein the ends of the support legs have post portions having a cross-sectional dimension smaller than the through holes, and wherein the body portions of the support legs have a cross-sectional dimension larger than the through holes.

6. A camera module, comprising:

a substrate;

the lens is arranged on one side of the substrate, and one end of the lens, which is close to the substrate, is provided with supporting feet;

the end parts of the supporting feet and the base plate are bonded by glue, and grooves are formed in bonding parts of the base plate and/or the end parts of the supporting feet.

7. The camera module of claim 6, wherein the ends of the support legs expand circumferentially in a direction toward the base plate.

8. A camera module according to claim 6 or 7, wherein the recess is an arcuate recess provided in the end of the support leg.

9. The camera module of claim 6, wherein the recess is disposed on the surface of the substrate and has a shape matching a cross-sectional shape of the end of the support leg.

10. The camera module of claim 6, wherein the support leg and the lens are integrally formed.