CN218456468U

CN218456468U - Camera module with air escape hole support

Info

Publication number: CN218456468U
Application number: CN202222388380.3U
Authority: CN
Inventors: 沈超; 王家财; 郑果; 邓宇; 谭勇; 严小超
Original assignee: Chongqing TS Precision Technology Co Ltd
Current assignee: Chongqing TS Precision Technology Co Ltd
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2023-02-07
Anticipated expiration: 2032-09-08

Abstract

The utility model discloses a camera module of gas pocket support is escaped in area, its characterized in that: the camera lens, a support, sensitization chip, circuit substrate, the light filter, the support middle part has the through-hole, camera lens threaded connection is on through-hole upper portion, and fixed with the support point after the camera lens focusing, the light filter sets up in the camera lens below, and cover the through-hole, sensitization chip sets up on circuit substrate, and be connected with circuit substrate electricity, the support cover is established in sensitization chip top, the lower extreme and the circuit substrate bonding connection of support, the gas escape hole has on the support, gas escape hole intercommunication cavity and external environment, the gas escape hole is including the first passageway that communicates in proper order, the second passageway, the third passageway, first passageway vertical layout, the second passageway horizontal layout, the third passageway vertical layout, and first passageway and third passageway are not on same straight line. The beneficial effects of the utility model are that escape the atmospheric pressure that the gas pocket can balance cavity and external, and need not glue and seal and can reach dustproof effect, processing is convenient, low in manufacturing cost.

Description

Camera module with air escape hole support

Technical Field

The utility model relates to a camera field, concretely relates to area escapes camera module of gas pocket support.

Background

Present conventional camera module contains: lens, support, sensitization chip, circuit substrate and light filter. The bracket is generally provided with an air escape hole structure, the air escape hole structure on the bracket is used for preventing the internal space of the bracket from being closed before the structural glue between the bracket and the circuit substrate is solidified, and the structural glue is flushed away under the action of thermal expansion and cold contraction of gas; the conventional air escaping holes are of horn-shaped structures with large upper parts and small lower parts, the air escaping holes are required to be sealed by glue after the glue between the support and the circuit substrate is solidified, and impurities such as external dust are prevented from entering the inside of the support. Production stations are required to be added for sealing the air escape holes, and time is required for curing, so that the production efficiency is influenced. Simultaneously, need evacuation packing shipment or when using under high temperature environment after the module production of making a video recording is accomplished, because support inner space seals, evacuation and high temperature all can cause the inside atmospheric pressure of support to be greater than outside atmospheric pressure, and inside and outside atmospheric pressure is unbalanced, and the light filter can be extruded to atmospheric pressure, influences the effect of shooing. In addition, the conventional injection molding processing is difficult or impossible in the conventional similar patent structure, and the processing difficulty and the processing cost are high.

Disclosure of Invention

To the weak point among the above-mentioned prior art, the utility model provides a camera module of gas pocket support is escaped in area, it has remain the function of escaping the gas pocket to have fine dustproof effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a camera module of gas pocket support is escaped in area which characterized in that: the optical filter is arranged below the lens and covers the through hole, the photosensitive chip is arranged on the circuit substrate and is electrically connected with the circuit substrate, the support is covered above the photosensitive chip, the lower end of the support is connected with the circuit substrate in an adhesive manner, a cavity is arranged between the lower part of the support and the circuit substrate, an air escaping hole is arranged on the support and communicated with the cavity and an external environment, the air escaping hole comprises a first channel, a second channel and a third channel which are sequentially communicated, the first channel is vertically arranged, the second channel is transversely arranged, the third channel is vertically arranged, and the first channel and the third channel are not in the same straight line.

Furthermore, the upper end of the first channel is opened on the upper surface of the bracket, the right side end of the second channel is opened on the side surface of the bracket, and the lower end of the third channel is opened on the inner side surface of the bracket.

Further, the lower end of the first channel passes through the lower side wall of the second channel, and an ash groove is formed on the lower side wall of the second channel.

Furthermore, the cross section of the first channel is annular, the width of the annular channel is not less than 0.2mm, the depth from the bottom of the ash deposition groove to the lower side wall of the second channel is not less than 0.2mm, and the diameter of the second channel is 0.15mm-0.3mm.

Furthermore, the top of the third channel is communicated with the side wall of the second channel, and the diameter of the third channel is 0.15-0.3 mm.

The beneficial effects of the utility model include:

1. the air escape holes in the bracket do not need to be filled with glue to seal the air escape holes, so that the glue consumption and the glue dispensing process are reduced;

2. the inside of the camera is communicated with the outside, the internal air pressure and the external air pressure are balanced, and the stress of the optical filter is balanced in a vacuumizing or high-temperature environment;

3. the manufacturing can be processed by a conventional injection molding process, and the manufacturing and processing are simple.

Drawings

Fig. 1 is a schematic structural view of a camera module according to a first embodiment of the present invention;

fig. 2 is a schematic top view of a camera module according to a first embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of an air escape hole according to a first embodiment of the present invention;

fig. 4 is a schematic side view of an air escape hole according to a first embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 3;

FIG. 6 is a schematic cross-sectional view of a rack vent hole according to a second embodiment of the present invention;

fig. 7 is a schematic top view of a bracket according to a second embodiment of the invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.

Example one

The camera module with the air escape hole bracket shown in fig. 1-5 comprises a lens 1, a bracket 2, a photosensitive chip 3, a circuit substrate 4 and an optical filter 5. The middle of the bracket 2 is provided with a through hole, the lens 1 is in threaded connection with the upper part of the through hole, and the lens 1 is fixed with the bracket 2 after focusing. The filter 5 is disposed under the lens 1 and covers the through hole. The photosensitive chip 5 is disposed on the wiring substrate 4 and electrically connected to the wiring substrate 4. The support 2 covers above the photosensitive chip 5, so that the lens 1 is right opposite to the photosensitive chip 3, and the lower end of the support 2 is connected with the circuit substrate 4 in a bonding manner. A cavity 7 is arranged between the lower part of the bracket 2 and the circuit substrate 4, an air escape hole 6 is arranged on the bracket 2, and the air escape hole 6 is communicated with the cavity 7 and the external environment.

The escape hole 6 includes a first passage 61, a second passage 62, and a third passage 63, as shown in fig. 3 and 4. One end of the first passage 61 communicates with the outside of the holder 2; one end of the second channel 62 is communicated with the side wall of the bracket 2; one end of the third passage 63 communicates with the inside of the holder.

Further, the first passage 61 directly communicates with the second passage 62; the second passage 62 is in direct communication with the third passage 63; thus, the first passage 61, the second passage 62, and the third passage 63 communicate with each other.

Further, the top opening of the first channel 61 is communicated with the outside air, the bottom is provided with an ash deposition groove 64 for depositing impurities such as fallen dust, and the side wall opening is communicated with the second channel; the width a of the top opening is required to be more than 0.2mm, the depth b of the bottom from the side wall opening is required to be more than 0.2mm, and the diameter c of the side wall opening is required to be more than or equal to 0.15mm and less than or equal to 0.3mm; the width a of the top opening and the diameter c of the side wall opening are not suitable to be too small, and the exhaust rate is small due to too small width; the depth b of the bottom surface from the side wall opening is not too small, the diameter c of the side wall opening is not too large, and otherwise, the risk that impurities such as dust fall into the support is increased.

Furthermore, the right side of the second channel 62 is communicated with the side wall of the bracket 2, so that the bracket 2 can be conveniently molded by injection, and demolding can be realized only by adding a sliding block on the side wall of the mold; the diameter d of the opening on the right side needs to be more than or equal to 0.15mm and less than or equal to e and less than or equal to 0.3mm, the risk of light leakage of the module exists when the opening is too large, and the exhaust rate is influenced when the opening is too small; in order to reduce the risk of light leakage of the module, the inside of the escape hole can be subjected to surface extinction treatment.

Furthermore, the top surface of the third channel 63 is communicated with the side wall of the second channel 62, and the bottom surface of the third channel 63 is communicated with the interior of the bracket 2; the diameter e of the opening on the bottom surface needs to be more than or equal to 0.15mm and less than or equal to 0.3mm, the exhaust efficiency is affected by undersize, and the light leakage risk of the module is increased excessively.

Further, the cross-sectional shape of the first channel 61 may be various, and may be other concentric shapes such as concentric circles, concentric rectangles, etc.; the cross-sectional shape of the second channel 62 can be various, such as circular, rectangular, polygonal, etc.; the third passage 63 may also have a variety of cross-sectional shapes, including circular, rectangular, and polygonal shapes.

Example two

As shown in fig. 6 to 7, the other features are the same as those of the first embodiment, except that in this embodiment, the first passage has a rectangular cross section, the top of the first passage is communicated with the outside of the bracket 2, the bottom of the first passage is provided with a dust collecting groove 64 for storing impurities such as dust falling into the bracket, and the side wall of the first passage is communicated with the second passage 62.

Further, the first channel 61 is located between the third channel 63 and the side wall of the bracket 2 where the second channel 62 is opened, and it is possible to effectively block and store foreign substances such as dust entering from the first channel 61 and the second channel 62.

Furthermore, the cross-sectional shape of the first channel is variable, and can be a polygon such as a triangle, a rectangle, and the like, or a combined figure.

The two embodiments of the invention can achieve the following effects:

1. air escape holes can effectively and rapidly balance air pressure inside and outside the module, and materials such as optical filters and the like in the vacuum-pumping and high-temperature environment of the module are not extruded.

2. The air escape hole can prevent impurities such as dust and the like from entering the support, so that the air escape hole is not needed to be glued and sealed, and the process flow can be effectively saved.

3. Meanwhile, the air escape hole can be conveniently processed by injection molding, and the processing difficulty and the processing cost are effectively reduced.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a camera module of gas pocket support is escaped in area which characterized in that: comprises a lens (1), a bracket (2), a photosensitive chip (3), a circuit substrate (4) and a filter (5), the middle part of the bracket (2) is provided with a through hole, the lens (1) is connected with the upper part of the through hole in a threaded manner, and the lens (1) is fixed with the bracket (2) by dispensing after focusing, the optical filter (5) is arranged below the lens (1), and covers the through hole, the photosensitive chip (3) is arranged on the circuit substrate (4), and is electrically connected with the circuit substrate (4), the bracket (2) is covered above the photosensitive chip (3), the lower end of the bracket (2) is connected with the circuit substrate (4) in an adhesive way, a cavity (7) is arranged between the lower part of the bracket (2) and the circuit substrate (4), the bracket (2) is provided with an air escape hole (6), the air escape hole (6) is communicated with the cavity (7) and the external environment, the air escape hole (6) comprises a first channel (61), a second channel (62) and a third channel (63) which are communicated in sequence, the first channel (61) is arranged vertically, the second channel (62) is arranged horizontally, the third channel (63) is arranged vertically, and the first channel (61) and the third channel (63) are not collinear.

2. The camera module with the air escape hole bracket as claimed in claim 1, wherein: the upper end of the first channel (61) is opened on the upper surface of the bracket (2), the right side end of the second channel (62) is opened on the side surface of the bracket (2), and the lower end of the third channel (63) is opened on the inner side surface of the bracket (2).

3. The camera module with the air escape hole bracket as claimed in claim 2, wherein: the lower end of the first passage (61) passes through the lower side wall of the second passage (62), and an ash accumulation groove (64) is formed on the lower side wall of the second passage (62).

4. The camera module with the air escape hole bracket as claimed in claim 3, wherein: the cross section of the first channel (61) is annular, the width of the annular is not less than 0.2mm, the depth of the bottom of the ash deposition groove (64) from the lower side wall of the second channel (62) is not less than 0.2mm, and the diameter of the second channel (62) is 0.15-0.3 mm.

5. The camera module with the air escape hole bracket as claimed in claim 2, wherein: the top of the third channel (63) is communicated with the side wall of the second channel (62), and the diameter of the third channel (63) is 0.15-0.3 mm.