CN216057180U

CN216057180U - Camera module and electronic equipment

Info

Publication number: CN216057180U
Application number: CN202121789821.XU
Authority: CN
Inventors: 郭恒
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-03-15
Anticipated expiration: 2031-07-30

Abstract

According to the camera module and the electronic equipment, a closed space is formed between the light filtering component and the image sensor component of the camera module, the air holes are formed in the support of the light filtering component, the soft rubber valves are packaged in the air holes, and the gaps are formed in the soft rubber valves and are in a closed state when the air pressure inside and outside the light filtering component is balanced, so that foreign matters such as dust in the external environment can be prevented from entering the camera module, and the performance of the camera module is ensured; when there is the atmospheric pressure difference inside and outside the optical filtering subassembly, the flexible glue valve produces deformation, and the gap on the flexible glue valve is opened, and inside and outside the intercommunication optical filtering subassembly, make optical filtering subassembly keep atmospheric pressure balanced inside and outside keeping, avoid light filter and image sensor to receive the damage, the reliability of the module of making a video recording of guarantee. Wherein, through set up the soft gluey valve in the bleeder vent to set up the mode in gap on the soft gluey valve, the inside and outside atmospheric pressure of module of making a video recording of balanced, simple structure, easily assembly, with low costs, efficient.

Description

Camera module and electronic equipment

Technical Field

The application relates to the technical field of electronic equipment, in particular to a camera module and electronic equipment.

Background

In the consumer electronics industry, particularly in the product fields of mobile phones, tablet computers, Virtual Reality (VR) devices and the like, cameras are increasingly widely used due to support of numerous functions and use scenes such as photographing, video recording, intelligent recognition, consumption and the like.

Optical components such as a lens, a filter and an image sensor in the camera have high sensitivity to foreign matters such as dust, and therefore, the camera should meet the dust-free requirement. Generally, in the manufacturing and assembling process of the camera module, an exhaust hole needs to be designed on a cavity of the camera module, air pressure in the assembling process is balanced, and normal assembling is guaranteed. After the assembly is finished, hole sealing glue is applied to the positions of the exhaust hole parts to seal the cavity, so that the sealing and dustproof performance of the module is guaranteed.

However, the camera module with such a design has a difference in internal and external air pressure, which may cause reliability problems such as the fracture of the optical filter and the deformation of the lens, and affect the function of the camera.

SUMMERY OF THE UTILITY MODEL

The application provides a module and electronic equipment make a video recording, the module of making a video recording has dustproof and ventilative function, can balance inside and outside atmospheric pressure difference, can prevent light filter and camera lens damage, and the function of the module is made a video recording in the guarantee, promotes electronic equipment's performance.

In a first aspect, the present application provides a camera module, which includes a lens, a filtering component and an image sensor component, wherein the filtering component and the image sensor component are sequentially stacked on a light-emitting side of the lens; the light filtering component comprises a support and a light filter arranged on the support, and the image sensor component covers one side of the support, which is far away from the lens;

wherein, the bracket is provided with an air hole, a soft rubber valve is sealed in the air hole, and the soft rubber valve is provided with at least one gap; when the soft rubber valve is in a natural state, the gap is in a closed state; when the air pressure on the two sides of the soft rubber valve is unbalanced, the gap is opened.

According to the camera module, the airtight space is formed between the light filtering component and the image sensor component, the air holes are formed in the support of the light filtering component, the soft rubber valve is packaged in the air holes, the gaps are formed in the soft rubber valve, when the air pressure inside the light filtering component and the external environment are kept balanced, the gaps in the soft rubber valve are in a closed state, foreign matters such as dust in the external environment can be prevented from entering the camera module, and the performance of the camera module is guaranteed; when there is the atmospheric pressure difference inside and outside the optical filtering subassembly, the flexible glue valve produces deformation, and the gap on the flexible glue valve is opened thereupon, and inside and outside the intercommunication optical filtering subassembly makes the optical filtering subassembly keep atmospheric pressure balanced inside and outside keeping, avoids light filter and image sensor to receive the damage, ensures the reliability of the module of making a video recording. Wherein, through set up the soft gluey valve in the bleeder vent to set up the mode in gap on the soft gluey valve, the inside and outside atmospheric pressure of module of making a video recording of balanced, simple structure, easily assembly, with low costs, efficient.

In one possible embodiment, the slit is a punch cut on a soft glue valve.

The gap is punched on the soft rubber valve through the cutting die, and the soft rubber valve has no material loss. Under the condition that the air pressure at the two sides of the soft rubber valve is balanced, the gap is in a closed state; when the two sides of the soft rubber valve have air pressure difference and the soft rubber valve deforms, the gap can be opened along with the deformation of the soft rubber valve.

In a possible embodiment, the soft rubber valve is provided with a plurality of gaps, the plurality of gaps are arranged at intervals, or at least part of the gaps are crossed with each other.

In a possible embodiment, the soft rubber valve arranged on the bracket and the bracket are integrally formed, or the soft rubber valve on the bracket is tightly matched with the air vent on the bracket.

The flexible glue valve on the bracket can be injected into the vent hole through a double-color injection molding process, so that the flexible glue valve is integrally molded on the bracket, and the flexible glue valve and the bracket are of an integral structure, so that the flexible glue valve can be firmly connected, and the vent hole can be completely blocked; or the soft rubber valve can be formed independently, and the soft rubber valve is tightly attached to the air hole by pressing the soft rubber valve into the air hole, so that the soft rubber valve is firmly fixed and well sealed with the air hole.

In a possible implementation manner, the camera module further includes a lens barrel, the lens barrel includes a first open end and a second open end that are oppositely disposed, the lens is enclosed at the first open end of the lens barrel, and one side of the bracket facing the lens covers the second open end of the lens barrel;

wherein, the lens cone is provided with an air vent, a soft rubber valve is sealed in the air vent, and the soft rubber valve is provided with at least one gap.

The first opening end and the second opening end of the lens cone are respectively sealed through the lens and the support, a sealed space is formed inside the lens cone, the air holes are formed in the lens cone, the soft rubber valve is sealed in the air holes, and gaps are formed in the soft rubber valve; when the air pressure difference exists between the inside and the outside of the lens cone, the soft rubber valve deforms, the gap on the soft rubber valve is opened along with the deformation of the soft rubber valve, the inside and the outside of the lens cone are communicated, the air pressure inside and outside the lens cone is kept balanced, the lens and the optical filter are prevented from being damaged, and the reliability of the camera module is guaranteed. Wherein, through set up the soft gluey valve in the bleeder vent to set up the mode in gap on the soft gluey valve, the inside and outside atmospheric pressure of module of making a video recording of balanced, simple structure, easily assembly, with low costs, efficient.

In a possible implementation mode, the soft rubber valve arranged on the lens cone and the lens cone are an integral molding piece, or the soft rubber valve on the lens cone is tightly matched with the air vent on the lens cone.

The soft rubber valve on the lens cone can be injected into the air vent through a double-color injection molding process, so that the soft rubber valve is integrally molded on the lens cone, and the soft rubber valve and the lens cone are of an integral structure, so that the firm connection of the soft rubber valve can be ensured, and the air vent can be completely blocked; or the soft rubber valve can be formed independently, and the soft rubber valve is tightly attached to the air hole by pressing the soft rubber valve into the air hole, so that the soft rubber valve is firmly fixed and well sealed with the air hole.

In one possible embodiment, the air holes on the bracket are positioned in the covering range of the second opening end of the lens cone.

The air holes formed in the surface of the support are formed in the range covered by the second opening end of the lens barrel, the air holes are hidden in the area covered by the lens assembly, the second opening end of the lens barrel can be attached to the edge of the support, the size of the support is reduced, and the size of the camera module is reduced.

In a possible implementation manner, an encapsulation adhesive layer is arranged between the second opening end of the lens barrel and the support, and the lens barrel and the support are hermetically connected through the encapsulation adhesive layer.

One surface of the packaging adhesive layer is bonded on the end face of the second opening end of the lens cone, the other surface of the packaging adhesive layer is bonded on the surface of the support, and the second opening end of the lens cone is bonded on the support through the packaging adhesive layer.

In a possible implementation manner, the camera module further includes a driving device, the driving device includes a housing, and the lens is movably disposed in the housing.

In one possible embodiment, the filter assembly and the image sensor assembly are both disposed within the housing;

alternatively, the filter assembly and the image sensor assembly are fixed outside the housing.

In one possible implementation, the image sensor assembly includes a circuit board and an image sensor disposed on the circuit board, a region of the circuit board located at the periphery of the image sensor is a packaging region, and the bracket is fixed in the packaging region.

The support is fixed in the packaging area on the circuit board, the optical filter arranged on the support is opposite to the image sensor arranged in the area surrounded by the packaging area, and light emitted by the lens is filtered by the optical filter and then irradiates the image sensor so as to be imaged by the image sensor. And a sealed space is formed by enclosing the support, the optical filter packaged on the support and the circuit board.

In one possible implementation, the optical filter and the image sensor are both located in the light-emitting path of the lens.

The light emergent surface of the lens, the optical filter and the image sensor are opposite, and light rays emitted from the lens sequentially pass through the optical filter and the photosensitive surface of the image sensor and are processed by the image sensor to form an image.

In a third aspect, the present application provides an electronic device, which includes at least one camera module as described above.

The application provides an electronic device which comprises at least one camera module, wherein the camera module is provided with an air hole through a support (a lens cone) of a light filtering component, a soft rubber valve is packaged in the air hole, a gap is formed in the soft rubber valve, when the inside of the light filtering component (the inside of the lens cone) is kept in air pressure balance with the external environment, the gap in the soft rubber valve is in a closed state, foreign matters such as dust in the external environment can be prevented from entering the camera module, and the performance of the camera module is ensured; when the air pressure difference exists between the inside and the outside of the filtering component (lens cone), the soft rubber valve deforms, the gap on the soft rubber valve is opened, the inside and the outside of the filtering component (lens cone) are communicated, the air pressure inside and outside of the filtering component (lens cone) is kept balanced, the lens, the optical filter and the image sensor are prevented from being damaged, and the reliability of the camera module is guaranteed. Wherein, through set up the soft gluey valve in the bleeder vent to set up the mode in gap on the soft gluey valve, the inside and outside atmospheric pressure of module of making a video recording of balanced, simple structure, easily assembly, with low costs, efficient.

Drawings

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

FIG. 2 is a partial exploded view of FIG. 1;

fig. 3a is an exploded view of a camera module according to an embodiment of the present disclosure;

FIG. 3b is a cross-sectional view of the camera module of FIG. 3 a;

FIG. 4a is an exploded view of a camera module according to the related art;

FIG. 4b is a cross-sectional view of the camera module of FIG. 4 a;

FIG. 5a is an exploded view of another camera module of the related art;

FIG. 5b is a cross-sectional view of the camera module of FIG. 5 a;

fig. 6 is a schematic structural diagram of a filter assembly according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a lens assembly provided in an embodiment of the present application;

FIG. 8a is a schematic view of a soft gel valve on a bracket prior to unblanking the slit;

FIG. 8b is an enlarged view of a portion of FIG. 8a at A;

FIG. 9a is a schematic structural view of a slit being punched on a soft rubber valve on a bracket;

FIG. 9B is an enlarged view of a portion of FIG. 9a at B;

FIG. 10a is a schematic view of the structure of the bracket after a slit is punched on the soft rubber valve;

FIG. 10b is an enlarged view of a portion of FIG. 10a at C;

fig. 11 is an exploded view of another camera module according to an embodiment of the present disclosure;

fig. 12 is an exploded view of a third camera module according to the related art.

Detailed Description

The terminology used in the description of the embodiments section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.

With the continuous progress of science and technology, cameras have become basic configurations of electronic devices such as mobile phones, tablet computers, Virtual Reality (VR) devices, notebook computers, Personal Digital Assistants (PDAs), intelligent wearable devices, and Point of Sales (POS). Moreover, the camera is more and more widely applied due to supporting a plurality of functions and use scenes such as photographing, video recording, intelligent identification and consumption.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure; fig. 2 is a partial exploded view of fig. 1. Referring to fig. 1 and 2, an electronic device 100 according to the present application will be described with reference to a mobile phone as an example. It should be understood that the electronic device 100 of the present embodiment includes, but is not limited to, a mobile phone, and the electronic device 100 may also be a terminal device such as the tablet computer, VR device, notebook computer, PDA, smart wearable device, or POS.

Referring to fig. 1 and 2, the electronic apparatus 100 may include a housing 2, a display panel 3, a camera module 1, and a main board 4. The shell 2 encloses the back and the side of establishing at electronic equipment 100, and display panel 3 installs on shell 2, and display panel 3 and shell 2 enclose into electronic equipment 100's accommodation space jointly, and module 1 and mainboard 4 of making a video recording all install in this accommodation space. In addition, a microphone, a loudspeaker, a battery or other devices can be arranged in the accommodating space.

Taking the camera module 1 as a rear camera as an example, as shown in fig. 1, the camera module 1 is located in an area near the top edge of the housing 2. It is understood that the position of the camera module 1 is not limited to the position shown in fig. 1, and may be located in other parts of the housing 2. Alternatively, the camera module 1 may be a front camera (not shown in the figure), and the camera module 1 may display an area near the top of the panel 3.

In the following, the camera module 1 is taken as an example of a rear camera, and the camera module 1 faces the housing 2 of the electronic device 100.

Referring to fig. 2, in some embodiments, the housing 2 may include a rear cover 21 and a middle frame 22, a light hole 211 is formed in the rear cover 21, the camera module 1 may be disposed on the middle frame 22, and the camera module 1 collects external ambient light through the light hole 211 in the rear cover 21. Wherein, the sensitization face and the light trap 211 of module 1 of making a video recording set up relatively, and external environment light passes the light trap 211 and shines to the sensitization face, and the sensitization face is used for gathering external environment light, and module 1 of making a video recording is used for converting light signal into the signal of telecommunication to realize its shooting function.

Fig. 2 shows that one camera module 1 is provided in the electronic device 100, and it should be noted that, in practical applications, the number of camera modules 1 is not limited to one, and the number of camera modules 1 may also be two or more than two. When the number of the camera modules 1 is plural, the plurality of camera modules 1 can be arranged arbitrarily in the X-Y plane. For example, the plurality of camera modules 1 are arranged in the X-axis direction, or the plurality of camera modules 1 are arranged in the Y-axis direction.

The camera module 1 includes, but is not limited to, an Auto Focus (AF) module, a Fixed Focus (FF) module, a wide camera module, a telephoto camera module, a color camera module, or a monochrome camera module. The camera module 1 in the electronic device 100 may include any one of the camera modules 1, or two or more of the camera modules 1. When the number of the camera modules 1 is two or more, the two or more camera modules 1 may be integrated into one camera module.

Referring to fig. 2, the camera module 1 may be electrically connected to the main board 4. As an embodiment, the camera module 1 may be electrically connected to the motherboard through an electrical connector. For example, the camera module 1 is provided with a male socket of the electrical connector, and the motherboard is provided with a female socket of the electrical connector, and the female socket is inserted into the male socket to realize the electrical connection between the camera module 1 and the motherboard. Wherein, be equipped with the treater on the mainboard for example, shoot the image through treater control camera module 1. When a user inputs a shooting instruction, the processor receives the shooting instruction and controls the camera module 1 to shoot a shooting object according to the shooting instruction.

The image pickup module 1 in the electronic apparatus 100 according to the embodiment of the present application will be described in detail below.

Example one

Fig. 3a is an exploded view of a camera module according to an embodiment of the present disclosure; FIG. 3b is a cross-sectional view of the camera module of FIG. 3 a; FIG. 4a is an exploded view of a camera module according to the related art; FIG. 4b is a cross-sectional view of the camera module of FIG. 4 a; FIG. 5a is an exploded view of another camera module of the related art; fig. 5b is a cross-sectional view of the camera module of fig. 5 a.

In this embodiment, the structure of the camera module 1 will be described by taking the camera module 1 in the electronic device 100 as a Fixed Focus (FF) module as an example.

Specifically, referring to fig. 3a, the camera module 1 includes a lens assembly 11, a filter assembly 12 and an image sensor assembly 13, wherein the filter assembly 12 is fixed on the image sensor assembly 13, and the lens assembly 11 is fixed on the filter assembly 12 to form the integrated camera module 1.

The lens assembly 11 includes a lens 111 and a lens barrel 112, the lens barrel 112 has a first open end 1121 and a second open end 1122 that are oppositely disposed, the lens 111 is enclosed in the first open end 1121 of the lens barrel 112, and the second open end 1122 of the lens barrel 112 is fixed on the filter assembly 12. For example, the size of the first open end 1121 of the lens barrel 112 may be smaller than the size of the second open end 1122, the size of the first open end 1121 is smaller to facilitate fixing the lens 111, and the size of the second open end 1122 is larger to ensure that the lens assembly 11 has a sufficient light emitting area.

In addition, the first open end 1121 of the lens barrel 112 may have a positioning surface 1123 for fixing the lens 111 in the first open end 1121, for example, the lens 111 has a surface matching with the positioning surface 1123, and the lens 111 may be adhered to the positioning surface 1123. The exterior of the lens barrel 112 may also be fixed in the electronic device 100 by the positioning surface 1123, for example, the positioning surface 1123 of the lens barrel 112 is adhered to the middle frame of the mobile phone. The lens 111 may extend out of the first opening end 1121, for example, the light incident surface of the lens 111 abuts against the inner wall of the rear cover 21 of the mobile phone, a light-transmitting plate is usually covered at the light-transmitting hole 211 of the rear cover 21 of the mobile phone, and the light incident surface of the lens 111 may be attached to the light-transmitting plate.

With reference to fig. 3a, the filter assembly 12 includes a frame 121 and a filter 122, the frame 121 has a mounting opening 1211, the mounting opening 1211 corresponds to the light-emitting surface of the lens 111, and the filter 122 is mounted on the mounting opening 1211 of the frame 121. The ambient light incident on the lens 111 is emitted from the lens 111, is irradiated to the filter 122, is filtered by the filter 122, and is irradiated to the image sensor module 13. The imaging effect of the image sensor module 13 can be improved by the filtering effect of the filter 122.

Illustratively, the filter 122 may be a blue glass filter, and the blue glass filter filters infrared light with a longer wavelength, so as to improve the true color of an image formed by the image sensor assembly 13, and avoid the problem of color distortion of the image.

As shown in fig. 3b, the second open end 1122 of the lens barrel 112 is fixed on a surface of the holder 121 facing the lens assembly 11, and the mounting opening 1211 on the holder 121 is located in an area surrounded by the second open end 1122 of the lens barrel 112, so as to ensure that the entire surface of the optical filter 122 can receive the light emitted from the lens 111, thereby ensuring the filtering effect of the optical filter 122.

As shown in fig. 3a, as a specific embodiment, an encapsulation adhesive layer 160 may be disposed between the second open end 1122 of the lens barrel 112 and the surface of the support 121, one surface of the encapsulation adhesive layer 160 is adhered to the end surface of the second open end 1122 of the lens barrel 112, the other surface of the encapsulation adhesive layer 160 is adhered to the surface of the support 121, and the second open end 1122 of the lens barrel 112 is adhered to the support 121 through the encapsulation adhesive layer 160. Thus, the lens 111 covers the first open end 1121 of the lens barrel 112, and the holder 121 of the filter assembly 12 covers the second open end 1122 of the lens barrel 112, so that a sealed space is formed inside the lens barrel 112.

Referring to fig. 3a, the image sensor assembly 13 includes an image sensor 132 and a circuit board 131, a chip area and a package area located at the periphery of the chip area are disposed on the circuit board 131, the image sensor 132 is disposed in the chip area on the circuit board 131, for example, the chip area on the circuit board 131 has a pad therein, and the image sensor 132 is soldered on the circuit board 131 through the pad to electrically connect the image sensor 132 and the circuit board 131. Wherein, the surface of the image sensor 132 facing the filter assembly 12 is the light-sensitive surface thereof.

The lens assembly 11 and the filter assembly 12 are located on a side surface of the circuit board 131 on which the image sensor 132 is disposed, and the holder 121 of the filter assembly 12 is connected to the circuit board 131 in a package region located at the periphery of the image sensor 132. The light-emitting surface of the lens 111, the optical filter 122 and the image sensor 132 are opposite to each other, the optical filter 122 and the image sensor 132 are located on the light-emitting path of the lens 111, and light emitted from the lens 111 sequentially passes through the light-sensing surfaces of the optical filter 122 and the image sensor 132 and is processed by the image sensor 132 to form an image.

Illustratively, the center of the filter 122 and the center of the light-sensing surface of the image sensor 132 are both located on the optical axis of the lens 111.

In practical applications, taking the camera module 1 as a rear camera as an example, a side surface of the circuit board 131 on which the image sensor 132 is disposed may face the rear cover 21 of the electronic device 100, and the lens assembly 11 faces the light-transmitting hole 211 on the rear cover 21; taking the camera module 1 as a front camera as an example, a side surface of the circuit board 131 on which the image sensor 132 is disposed may face the display panel 3 of the electronic device 100, and the lens assembly 11 faces the display panel 3.

For example, the Circuit Board 131 may be a Printed Circuit Board (PCB), a Flexible Circuit Board (FPC), or a rigid-flex Circuit Board (FPC), which is not limited in this embodiment.

The lens module 11 and the filter module 12 are located on a portion of the circuit board 131, and another portion of the circuit board 131 is used for electrically connecting with an external circuit, for example, the circuit board 131 is used for electrically connecting with the main board 4 in the mobile phone. Referring to fig. 3a, taking the circuit board 131 as a rigid-flex board as an example, a portion of the circuit board 131 where the image sensor 132 is disposed, that is, a portion of the circuit board 131 where the lens assembly 11 and the filter assembly 12 are connected may be a PCB, the PCB is connected to an FPC, and an end portion of the FPC is provided with an electrical connector 1311. Through connecting lens subassembly 11 and filtering component 12 on the PCB, be convenient for lens subassembly 11 and filtering component 12 fixed and the location, through being connected flexible FPC on the PCB, be convenient for make a video recording module 1 and external circuit electricity are connected.

The support 121 of the filter assembly 12 is fixed in the encapsulation area on the circuit board 131, the filter 122 is encapsulated in the installation opening 1211 of the support 121, and a sealed cavity is formed by the support 121, the filter 122 and the circuit board 131. For example, the frame 121 of the filter assembly 12 may be attached to the package region of the circuit board 131 by Surface Mount Technology (SMT) or a dispensing process.

As described above, referring to fig. 3b, the holder 121 of the filter assembly 12 is attached to the circuit board 131, a sealed cavity is formed between the holder 121 and the circuit board 131, the second open end 1122 of the lens barrel 112 is attached to the surface of the holder 121, and the sealed cavity is formed inside the lens barrel 112. However, during the assembly process of the camera module 1, for example, during the process of attaching the holder 121 of the filter assembly 12 to the surface of the circuit board 131 and the process of attaching the lens barrel 112 to the surface of the holder 121, it is necessary to exhaust the air inside the holder 121 and the air inside the lens barrel 112, so as to prevent the holder 121 from being unable to be attached to the surface of the circuit board 131 or the lens barrel 112 from being unable to be attached to the surface of the holder 121 due to the internal air pressure.

In contrast, as shown in fig. 3a, normally, air holes 151 are formed in the lens barrel 112 and the support 121, the air holes 151 are communicated with the external environment, and the air pressure inside and outside the lens barrel 112 and the air pressure inside and outside the support 121 are kept balanced by the arrangement of the air holes 151, so that the phenomenon that the lens barrel 112 cannot be attached to the surface of the support 121 and the phenomenon that the support 121 cannot be attached to the surface of the circuit board 131 due to excessive air pressures inside the lens barrel 112 and inside the support 121 are avoided, and the support 121 and the lens barrel 112 are ensured to be firmly connected.

In practical application, as shown in fig. 3b, in order to position the lens barrel 112, the lens 111 enclosed in the lens barrel 112 is aligned with the optical filter 122 on the holder 121, the size and shape of the second open end 1122 of the lens barrel 112 are generally close to the size and shape of the outer contour of the holder 121, and the second open end 1122 of the lens barrel 112 is attached to the holder 121 near the edge. Also, since the thickness of the bracket 121 is generally small, the airing holes 151 of the bracket 121 are generally opened on a side surface of the bracket 121 facing the lens barrel 112. Therefore, the air holes 151 (not shown in fig. 3 b) of the frame 121 are generally located within the coverage area of the second open end 1122 of the lens barrel 112, and the inside of the frame 121 is communicated with the external environment through the air holes 151 of the frame 121 and the air holes 151 of the lens barrel 112.

It should be understood that the inside of the lens barrel 112 herein refers to an inner space enclosed by the lens 111, the lens barrel 112 and the holder 121. The inside of the support 121 refers to an internal space surrounded by the filter 122, the support 121, and the circuit board 131. Unless otherwise stated, the inside of the lens barrel 112 and the inside of the bracket 121 are referred to as the two enclosed inner spaces, respectively.

In addition, in the thickness direction of the camera module 1, the air holes 151 on the bracket 121 and the air holes 151 on the lens barrel 112 may be located at the same position, that is, the air holes 151 on the bracket 121 and the air holes 151 on the lens barrel 112 are oppositely arranged; alternatively, the air holes 151 on the bracket 121 and the air holes 151 on the lens barrel 112 are respectively located at different positions in the thickness direction of the image pickup module 1, which is not limited in this embodiment. In the case that the air holes 151 of the bracket 121 and the air holes 151 of the lens barrel 112 do not correspond to each other, fig. 3b, 4b and 5b only show the air holes 151 of the lens barrel 112, and it can be understood that the air holes 151 of the bracket 121 and the air holes 151 of the lens barrel 112 are packaged in the same manner or similar.

However, after the air holes 151 are formed in the lens barrel 112 and the bracket 121, foreign matters such as dust in the external environment may enter the inside of the lens barrel 112 and the inside of the bracket 121 through the air holes 151, the dust inside the lens barrel 112 may adhere to the light emitting surface of the lens 111 and the front surface of the optical filter 122 (the surface of the optical filter 122 facing the lens 111), and the dust inside the bracket 121 may adhere to the back surface of the optical filter 122 (the surface of the optical filter 122 facing the image sensor 132) and the light sensing surface of the image sensor 132.

Since the lens 111, the filter 122 and the image sensor 132 are all photosensitive elements, they have high sensitivity to foreign matters such as dust, and if the surfaces of the lens 111, the filter 122 and the image sensor 132 have foreign matters such as dust, their working performance is affected, and further, the shooting effect of the camera module 1 is affected. Therefore, after the camera module 1 is assembled, the vent holes 151 on the lens barrel 112 and the bracket 121 need to be sealed, so as to prevent foreign matters from entering the inside of the lens barrel 112 and the inside of the bracket 121, ensure the working performance of the lens 111, the optical filter 122 and the image sensor 132, and improve the shooting effect of the camera module 1.

Referring to fig. 4a, in the related art, after the filter assembly 12 and the lens assembly 11 are assembled, a hole sealing adhesive 153 is formed in the air holes 151 of the bracket 121 and the air holes 151 of the lens barrel 112 by a dispensing process, and the air holes 151 of the bracket 121 and the air holes 151 of the lens barrel 112 are sealed by the hole sealing adhesive 153. Referring to fig. 4a and 4b, in the case that the air holes 151 on the support 121 are located within the coverage of the second open end 1122 of the lens barrel 112, the filter assembly 12 may be first attached to the circuit board 131, the air holes 151 on the support 121 of the filter assembly 12 are sealed by dispensing, the lens assembly 11 may be attached to the support 121, and then the air holes 151 on the lens barrel 112 are sealed by dispensing.

However, since the air holes 151 in the bracket 121 and the air holes 151 in the lens barrel 112 are completely sealed by the sealing glue 153, a sealed space is formed inside the bracket 121 and inside the lens barrel 112, and for a waterproof and sealed electronic device 100, for example, a mobile phone with waterproof performance, during the use of the electronic device 100, as the temperature rises, the air pressure inside the electronic device 100 increases, and the pressure outside the camera module 1 is greater than the pressure inside the bracket 121 and the pressure inside the lens barrel 112; alternatively, when the electronic device 100 performs performance detection under vacuum conditions, the pressure inside the holder 121 and the pressure inside the lens barrel 112 are higher than the pressure outside the camera module 1.

No matter the pressure inside the bracket 121 and the pressure inside the lens barrel 112 are smaller than the external pressure, or the pressure inside the bracket 121 and the pressure inside the lens barrel 112 are larger than the external pressure, as long as there is a difference between the pressures inside and outside the bracket 121 and inside and outside the lens barrel 112, the problems of the filter 122 being broken or the lens 111 being deformed may be caused, the reliability of the camera module 1 being reduced, and the function of the camera module 1 being affected.

In order to avoid the situation that air pressure difference exists between the inside and the outside of the support 121 and the inside and the outside of the lens barrel 112 when the temperature of the electronic device 100 rises and the electronic device 100 is in a vacuum environment, as shown in fig. 5a and 5b, in some other related technologies, a waterproof breathable film 154 is attached to the positions of the air holes 151 on the support 121 and the air holes 151 on the lens barrel 112, and for example, a waterproof breathable film can be attached to the inner wall of the support 121 and the inner wall of the lens barrel 112 by means of back adhesive or in-mold injection. Through covering waterproof ventilated membrane 154 on bleeder vent 151, waterproof ventilated membrane 154 plays dustproof, waterproof and ventilative effect simultaneously, when preventing that foreign matters such as dust from getting into inside the support 121 and inside the lens cone 112, the atmospheric pressure difference inside and outside balanced support 121 and the lens cone 112 avoids cracked or the camera lens 111 of light filter 122 to warp, ensures the reliability of making a video recording module 1.

However, since the waterproof breathable film 154 is a biological film and the mounting process of the waterproof breathable film 154 needs to be added, the cost of the camera module 1 is increased and the assembly efficiency of the camera module 1 is reduced.

In view of the above, referring to fig. 3a and fig. 3b, in the present embodiment, the soft adhesive valve 152 is sealed in the air hole 151 on the bracket 121 and the air hole 151 on the lens barrel 112, and the gap 1521 is disposed on the soft adhesive valve 152, and the soft adhesive valve 152 is sealed in the air hole 151, so that foreign matters such as dust in the external environment can be prevented from entering the inside of the bracket 121 and the inside of the lens barrel 112, and the performance of the camera module 1 is not affected; moreover, the air pressure inside and outside the bracket 121 and inside and outside the lens barrel 112 can be kept balanced by the gap 1521 on the soft rubber valve 152, so that the optical filter 122 and the lens 111 are prevented from being damaged, and the reliability of the camera module 1 is guaranteed.

Specifically, the air holes 151 on the support 121 and the air holes 151 on the lens barrel 112 are both provided with the soft rubber valve 152, and the soft rubber valve 152 blocks the air holes 151, so that foreign matters such as dust in the external environment can be prevented from entering the inside of the support 121 and the inside of the lens barrel 112. Moreover, a gap 1521 is arranged on the soft rubber valve 152, and the gap 1521 keeps a closed state under the condition that the pressure inside and outside the bracket 121 and the pressure inside and outside the lens barrel 112 are balanced; and under the condition that pressure difference exists between the inside and the outside of the bracket 121 or between the inside and the outside of the lens barrel 112, the gap 1521 is in an open state, and the air pressure difference between the inside and the outside of the bracket 121 or between the inside and the outside of the lens barrel 112 can be balanced through the gap 1521, so that the optical filter 122 or the lens barrel 112 is prevented from being damaged.

Taking the vent hole 151 on the support 121 as an example, the slit 1521 on the soft rubber valve 152 in the vent hole 151 is opened, the inside of the support 121 is communicated with the external environment, the gas in the external environment can enter the support 121 through the slit 1521 on the soft rubber valve 152, and the gas in the support 121 can enter the external environment through the slit 1521 on the soft rubber valve 152, so that the internal and external gas pressures of the support 121 are kept balanced, and the filter 122 is prevented from being damaged. Similarly, for the air hole 151 of the lens barrel 112, the gap 1521 of the soft rubber valve 152 in the air hole 151 is opened, the interior of the lens barrel 112 is communicated with the external environment, and the air pressure difference between the interior and the exterior of the lens barrel 112 can be balanced, so as to prevent the lens 111 and the optical filter 122 from being damaged, which is not described herein again.

The soft rubber valve 152 is made of a soft elastic material, and when the soft rubber valve 152 is in a natural state, that is, air pressures at two sides of the soft rubber valve 152 are balanced, that is, air pressures inside and outside the bracket 121 (inside and outside the lens barrel 112) are balanced, the gap 1521 is in a closed state; when the air pressure difference exists between the inside and the outside of the support 121 (inside and outside the lens barrel 112), the air pressure on the two sides of the soft rubber valve 152 is unbalanced, pressure is generated on the soft rubber valve 152, the soft rubber valve 152 deforms, the gap 1521 is opened to communicate the inside and the outside of the support 121 (inside and outside the lens barrel 112), and the air pressure inside and outside the support 121 (inside and outside the lens barrel 112) is balanced; after the air pressures inside and outside the bracket 121 (inside and outside the lens barrel 112) are balanced, the soft rubber valve 152 returns to the natural state, and the gap 1521 is closed again.

It can be understood that, when the air pressure outside the bracket 121 (outside the lens barrel 112) is greater than the air pressure inside the bracket 121 (inside the lens barrel 112), the soft rubber valve 152 deforms towards the inside of the bracket 121 (inside the lens barrel 112), and the gap 1521 is opened; when the air pressure inside the bracket 121 (inside the lens barrel 112) is greater than the air pressure outside the bracket 121 (outside the lens barrel 112), the soft rubber valve 152 deforms to the outside of the bracket 121 (outside the lens barrel 112), and the gap 1521 is opened.

For example, the soft rubber valve 152 may be made of silicone rubber, Thermoplastic Elastomer (TPE), Thermoplastic polyurethane Elastomer rubber (TPU), or the like.

Fig. 6 is a schematic structural diagram of a filter assembly according to an embodiment of the present disclosure; fig. 7 is a schematic structural diagram of a lens assembly provided in an embodiment of the present application; FIG. 8a is a schematic view of a soft gel valve on a bracket prior to unblanking the slit; FIG. 8b is an enlarged view of a portion of FIG. 8a at A; FIG. 9a is a schematic structural view of a slit being punched on a soft rubber valve on a bracket; FIG. 9B is an enlarged view of a portion of FIG. 9a at B; FIG. 10a is a schematic view of the structure of the bracket after a slit is punched on the soft rubber valve; fig. 10b is a partial enlarged view at C in fig. 10 a.

Referring to fig. 6, in the filter assembly 12, the mounting opening 1211 of the bracket 121 is located in a middle region of the plate surface of the bracket 121, a circumferential lap surface 1212 is provided at a position of the bracket 121 located at an outer edge of the mounting opening 1211, the lap surface 1212 is formed by inwardly recessing a surface of the bracket 121 (a side surface of the bracket 121 facing the lens assembly 11), and an edge of the filter 122 (not shown in the figure) is lapped on the lap surface 1212 to mount the filter 122 on the bracket 121. For example, the edge of the filter 122 may be adhered to the faying surface 1212 by a dispensing process.

By providing the overlapping surface 1212 recessed from the surface of the holder 121 at a portion of the holder 121 located at the outer edge of the mounting opening 1211, the filter 122 is mounted in the inwardly recessed region of the holder 121, so that the surface of the filter 122 can be flush with the surface of the holder 121, or the surface of the filter 122 can be recessed below the surface of the holder 121. Thus, as shown in fig. 3b, the assembly between the lens assembly 11 and the filter assembly 12 is facilitated, and a gap may be formed between the light-emitting surface of the optical filter 122 and the light-emitting surface of the lens 111, so as to meet the requirement of the installation gap between the optical filter 122 and the lens 111, and avoid damage to the optical filter 122 or the lens 111.

As shown in fig. 3b, an end surface of the side wall of the bracket 121 is attached to the circuit board 131, a gap is formed between the board surface of the bracket 121 and the circuit board 131, and the image sensor 132 is located in the gap to ensure that the image sensor 132 has a sufficient installation space to prevent the image sensor 132 from being damaged, so that a closed space is formed between the bracket 121 and the circuit board 131.

With reference to fig. 6, the ventilation holes 151 of the rack 121 are disposed near the edge of the plate surface of the rack 121, but the shape of the ventilation holes 151 of the rack 121 is not limited in this embodiment, for example, the ventilation holes 151 of the rack 121 are rectangular as shown in fig. 6, or the ventilation holes 151 of the rack 121 may also be circular, triangular, parallelogram, pentagonal, hexagonal, or other shapes.

Referring to fig. 7, the first open end 1121 of the lens barrel 112 has a size smaller than that of the second open end 1122, the lens barrel 112 forms a stepped surface 1124 between the first open end 1121 and the second open end 1122, and the vent holes 151 of the lens barrel 112 may be provided on the stepped surface 1124. Above the stepped surface 1124 is located a smaller-sized portion of the barrel wall of the barrel 112 for mounting the lens 111, which is, illustratively, offset from the center of the stepped surface 1124, e.g., one side of the smaller-sized portion of the barrel wall is flush with an edge of one side of the stepped surface 1124, and the other side of the smaller-sized portion of the barrel wall is spaced from an edge of the corresponding side of the stepped surface 1124.

By disposing the small-sized partial cylindrical wall of the lens barrel 112 corresponding to the mounting lens 111 away from the center of the stepped surface 1124, the size of the stepped surface 1124 can be reduced, the volume of the lens assembly 11 can be reduced, and the volume of the camera assembly can be reduced, on the basis of disposing the vent 151 on the reserved partial stepped surface 1124.

The shape of the vent holes 151 of the lens barrel 112 is not particularly limited in this embodiment, as with the vent holes 151 of the holder 121, and for example, the shape of the vent holes 151 of the lens barrel 112 is a circle as shown in fig. 7, or the shape of the vent holes 151 of the lens barrel 112 may be other shapes as described above.

Referring to fig. 6 and 7, the air holes 151 of the bracket 121 and the air holes 151 of the lens barrel 112 are provided with soft rubber valves 152 for blocking the air holes 151. As an embodiment, the soft glue valve 152 may be injection molded in the air hole 151 through a two-color injection molding process, that is, the soft glue valve 152 on the bracket 121 is integrally molded on the bracket 121, and the soft glue valve 152 on the lens barrel 112 is integrally molded on the lens barrel 112.

It should be noted that the two-color injection molding refers to a molding process in which two different materials are injected into the same mold, so that an injection molded part is formed by the two materials. Wherein the two materials may be the same material in two different colors, or the two materials may be different kinds of materials, for example, two materials having different hardness.

Specifically, the mold is mounted on the same injection molding machine (double-color injection molding machine) with two sets of injection molding devices, and two plastics are injected in sequence to generate a double-color product.

In this embodiment, the bracket 121 and the lens barrel 112 may be made of hard plastic, and the soft rubber valve 152 is made of soft rubber material. Therefore, according to the specific shapes of the bracket 121 and the lens barrel 112, a corresponding mold is manufactured, the mold is installed on a two-color injection molding machine, two types of plastics with different hardness are injected into the corresponding mold, and after demolding, the integrally molded bracket 121 (including the soft rubber valve 152 on the bracket 121) and the lens barrel 112 (including the soft rubber valve 152 on the lens barrel 112) are formed. During injection molding, hard plastic may be injected into the mold to form the bracket 121 (lens barrel 112), and then soft plastic materials may be injected into the mold to form the soft plastic valve 152 in the air hole 151 reserved on the bracket 121 (lens barrel 112).

As another embodiment, the soft rubber valve 152 may be separately manufactured and molded, and the soft rubber valve 152 is assembled into the air hole 151 in an extruding manner, so that the soft rubber valve 152 is tightly matched with the air hole 151, and the soft rubber valve 152 blocks the air hole 151. For example, the plane size of the soft rubber valve 152 may be slightly larger than the cross-sectional area of the vent 151, and when the soft rubber valve 152 is assembled in the vent 151, the hole wall of the vent 151 extrudes the soft rubber valve 152, so as to ensure that the soft rubber valve 152 is tightly attached to the hole wall of the vent 151.

In order to ensure that the soft rubber valve 152 is tightly assembled in the air holes 151 and prevent a gap from being generated between the soft rubber valve 152 and the hole walls of the air holes 151, sealant can be arranged on the circumferential side wall of the soft rubber valve 152, and the soft rubber valve 152 is adhered to the hole walls of the air holes 151 through the sealant. Therefore, the soft rubber valve 152 is adhered in the air hole 151, so that the soft rubber valve 152 can be firmly fixed; in addition, a sealing adhesive layer is arranged between the inner walls of the soft adhesive valve 152 and the air holes 151, so that the sealing performance of the soft adhesive valve 152 can be ensured.

For providing the slit 1521 on the soft glue valve 152, in an embodiment, the slit 1521 may be formed on the soft glue valve 152 by cutting with a knife die, that is, the slit 1521 on the soft glue valve 152 is a punch. Form gap 1521 on soft glue valve 152 through the cutting die blanking, because there is not any soft glue material of loss, be in natural state at soft glue valve 152, be the condition that there is not the atmospheric pressure difference in the both sides of soft glue valve 152 promptly, gap 1521 on the soft glue valve 152 is in the closed condition, and bleeder vent 151 is blocked up to soft glue valve 152.

When the air pressure on the two sides of the soft rubber valve 152 is unbalanced and the soft rubber valve 152 deforms, the punched gap 1521 is opened along with the deformation of the soft rubber valve 152. Taking the soft rubber valve 152 on the support 121 as an example, when there is a pressure difference between the inside and the outside of the support 121, at this time, the soft rubber valve 152 deforms, the punched gap 1521 is opened along with the deformation of the soft rubber valve 152, the inside of the support 121 and the external environment are communicated, until the pressure inside and the outside of the support 121 is balanced, the soft rubber valve 152 is restored to the original state, the gap 1521 is closed accordingly, and the soft rubber valve 152 completely blocks the vent hole 151. The working state of the soft rubber valve 152 on the lens barrel 112 is similar to that of the soft rubber valve 152 on the bracket 121, and is not described herein again.

Specifically, taking the soft rubber valve 152 integrally formed on the bracket 121 as an example, referring to fig. 8a and 8b, firstly, the bracket 121 and the soft rubber valve 152 covered on the vent 151 of the bracket 121 are injection molded through a two-color injection molding process; referring to fig. 9a and 9b, after the support 121 and the soft rubber valve 152 are molded, a slit 1521 may be punched on the soft rubber valve 152 by the cutting die 200 when the die is separated; referring to fig. 10a and 10b, after the slit 1521 is punched, the slit 1521 may be automatically closed after the cutting die 200 is withdrawn.

For the situation that the soft rubber valve 152 is manufactured separately and then the soft rubber valve 152 is tightly assembled in the air vent 151, before the soft rubber valve 152 is assembled, a gap 1521 can be punched on the soft rubber valve 152 through the cutting die 200; alternatively, after the soft rubber valve 152 is assembled to the vent 151, a slit 1521 is punched on the soft rubber valve 152 by the cutting die 200.

Wherein, a gap 1521 can be punched on the soft rubber valve 152; alternatively, a plurality of slits 1521 may be punched in the soft rubber valve 152. In this embodiment, the number and the positions of the slits 1521 on the soft rubber valve 152 are not specifically limited. Taking the soft rubber valve 152 provided with a plurality of slits 1521 as an example, the slits 1521 can be arranged at intervals; alternatively, some of the slits 1521 may cross each other. In addition, the present embodiment also does not specifically limit the length of the slit 1521.

Illustratively, as shown in fig. 6 and 7, two slits 1521 may be disposed on the soft glue valve 152, the two slits 1521 may be located at a central portion of the soft glue valve 152, and the two slits 1521 are disposed in a cross shape.

Through setting up the soft glue valve 152 in bleeder vent 151 on support 121 and the bleeder vent 151 on the lens cone 112 to set up the mode of gap 1521 on soft glue valve 152, can play the effect that prevents foreign matters such as dust from getting into in the module of making a video recording 1, when there is the atmospheric pressure difference between the inside and outside of the module of making a video recording 1, the atmospheric pressure inside and outside balanced module of making a video recording 1, protection camera lens 111, light filter 122 and image sensor 132 do not receive the damage. In addition, the forming assembly mode of the soft rubber valve 152 and the process for processing the gap 1521 on the soft rubber valve 152 are simple, the cost is low, and the assembly efficiency is high.

Example two

Fig. 11 is an exploded view of another camera module according to an embodiment of the present disclosure; fig. 12 is an exploded view of a third camera module according to the related art.

Referring to fig. 11, unlike the first embodiment, in the present embodiment, the structure of the camera module 1 is described by taking the camera module 1 in the electronic device 100 as an Auto Focus (AF) module.

Referring to fig. 11, the camera module 1 includes a lens 111, a driving device 14, a filter module 12, and an image sensor module 13, and the filter module 12 and the image sensor module 13 are sequentially disposed on a light emitting side of the lens 111.

The driving device 14 includes a housing 141, the housing 141 has a mounting hole 1411, the lens 111 is partially mounted in the housing 141 through the mounting hole 1411, and a light incident side of the lens 111 is exposed outside the housing 141. A driving component (not shown) is disposed in the driving device 14, and the driving component can drive the lens 111 to move in the housing 141, for example, the driving component drives the lens 111 to move along the optical axis direction of the lens 111 itself, so as to realize the focusing function of the lens 111. In some embodiments, the driving component can also drive the lens 111 to move along the plane direction where the lens 111 is located, so as to implement the anti-shake function of the lens 111.

Similar to the camera module 1 in the first embodiment, the filter assembly 12 of the camera module 1 in the first embodiment includes a bracket 121 and a filter 122 (not shown in the figure) mounted on the bracket 121, the image sensor assembly 13 includes a circuit board 131 and an image sensor 132 mounted on the circuit board 131, the circuit board 131 is connected with an electrical connector 1311, and the electrical connector 1311 is electrically connected with an external circuit. One side of the bracket 121 facing away from the lens 111 is attached to the circuit board 131, the bracket 121, the filter 122 and the circuit board 131 together enclose a closed space, and the image sensor 132 is located in the closed space, which is not described herein again.

Illustratively, referring to fig. 11, an encapsulation adhesive layer 160 is disposed between the support 121 and the circuit board 131, and the support 121 is attached to the circuit board 131 through the encapsulation adhesive layer 160. Alternatively, the bracket 121 may be further adhered to the circuit board 131 through a dispensing process, which is not limited in this embodiment.

Unlike the image pickup module 1 of the first embodiment, in the image pickup module 1 of the first embodiment, since the lens 111 is movably mounted in the housing 141 through the mounting hole 1411 of the housing 141 of the driving device 14, the lens 111 is not fixedly mounted on the housing 141, and a gap is usually formed between the lens 111 and the housing 141, a space formed between the lens 111 and a side surface of the bracket 121 facing the lens 111 is provided for air circulation, the space is communicated with the outside, and there is no air pressure difference. In contrast, the air hole 151 does not need to be provided in the housing 141 of the driving device 14.

Both the filter assembly 12 and the image sensor assembly 13 may be disposed in the housing 141 of the driving device 14, for example, the circuit board 131 of the image sensor assembly 13 is fixed on the inner wall of the housing 141, the filter assembly 12 is fixed on the circuit board 131, and the filter assembly 12 and the image sensor assembly 13 are fixed in the housing 141.

Alternatively, in the case where the cross-sectional size of the driving device 14 is small and the sizes of the filter assembly 12 and the image sensor assembly 13 are large, the filter assembly 12 and the image sensor assembly 13 may be connected outside the housing 141 of the driving device 14. For example, the bracket 121 of the filter assembly 12 is fixed on the outer surface of the case 141 facing away from the light incident surface of the lens 111, and the circuit board 131 of the image sensor assembly 13 is connected to the bracket 121. It is understood that a side surface of the housing 141 to which the holder 121 is connected is provided with a light-transmitting opening (not shown), and light emitted from the lens 111 passes through the light-transmitting opening of the housing 141 and irradiates the filter 122.

In practical applications, a sealing structure (not shown) is usually disposed in the housing 141 of the driving device 14, and the sealing structure seals the light exit surface of the lens 111 and the light entrance surface of the optical filter 122, so as to prevent the lens 111 and the optical filter 122 from being interfered by foreign objects such as dust, and ensure the optical performance of the camera module 1.

In addition, the lens 111 is usually placed on a carrying structure (not shown) by a fixing glue, and the carrying structure drives the lens 111 to move. Illustratively, a slight gap exists between the lens 111 and the fixing glue, so that the air pressure inside and outside the driving device 14 can be ensured to be balanced, and the focusing action of the lens 111 can be ensured.

Therefore, as shown in fig. 11, the air holes 151 may be formed in the holder 121 of the filter assembly 12. If the support frame 121 is located in the casing 141 of the driving device 14, the air holes 151 of the support frame 121 communicate with the external environment through the mounting holes 1411 of the casing 141 of the driving device 14. If the support 121 is connected to the outside of the casing 141 of the driving device 14, the air holes 151 on the support 121 may be located within the range covered by the light-transmitting opening on the casing 141, and the air holes 151 are communicated with the external environment through the mounting holes 1411 on the casing 141 of the driving device 14; alternatively, the airing holes 151 of the bracket 121 may be located at a portion of the bracket 121 exposed to the outside of the case 141 of the driving device 14.

Referring to fig. 12, regarding the camera module 1 in which only the vent holes 151 are formed in the bracket 121, it is shown that in the related art, through a dispensing process, a hole sealing adhesive 153 is formed in the vent holes 151 of the bracket 121, and the vent holes 151 in the bracket 121 are sealed by the hole sealing adhesive 153. As described above, when there is a difference in air pressure between the inside and the outside of the electronic device 100, the filter 122 may be broken, which reduces the reliability of the camera module 1 and affects the function of the camera module 1.

In this regard, referring to fig. 11, in the present embodiment, a soft rubber valve 152 is disposed in the ventilation hole 151 of the bracket 121, and the ventilation hole 151 is sealed by the soft rubber valve 152. Moreover, the slit 1521 is arranged on the soft rubber valve 152, and under the condition that the air pressure inside and outside the bracket 121 is balanced, the slit 1521 on the soft rubber valve 152 is in a closed state, so that dust is prevented from entering the bracket 121 and affecting the optical performance of the optical filter 122; under the condition that the air pressure difference exists between the inside and the outside of the support 121, the soft rubber valve 152 deforms, the gap 1521 is opened along with the deformation of the soft rubber valve 152, the inside of the support 121 is communicated with the external environment, the air pressure inside and outside the support 121 is kept balanced, and the optical filter 122 is prevented from being damaged.

The assembling process of the soft rubber valve 152 on the support 121, the processing manner of the slits 1521 on the soft rubber valve 152, the number and shape of the slits 1521, and the like are similar to those of the foregoing embodiments, and are not described herein again.

Through set up soft glue valve 152 in the bleeder vent 151 on support 121 to set up the mode of gap 1521 on soft glue valve 152, can be when playing the effect that prevents foreign matters such as dust from getting into in the module 1 of making a video recording, have the atmospheric pressure difference's the condition inside and outside the module 1 of making a video recording, the atmospheric pressure inside and outside balanced module 1 of making a video recording, protection filter 122 and image sensor 132 do not receive the damage. In addition, the forming assembly mode of the soft rubber valve 152 and the process for processing the gap 1521 on the soft rubber valve 152 are simple, the cost is low, and the assembly efficiency is high.

In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the embodiments of the application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Claims

1. The camera module is characterized by comprising a lens, a filtering component and an image sensor component, wherein the filtering component and the image sensor component are sequentially stacked on the light emergent side of the lens; the light filtering assembly comprises a support and a light filter arranged on the support, and the image sensor assembly covers one side of the support, which is far away from the lens;

2. The camera module of claim 1, wherein the slit is a punch cut on the soft glue valve.

3. The camera module according to claim 1, wherein the soft adhesive valve is provided with a plurality of slits, the slits are arranged at intervals, or at least part of the slits are mutually crossed.

4. The camera module of claim 1, wherein the soft rubber valve disposed on the bracket and the bracket are integrally formed, or the soft rubber valve on the bracket is tightly fitted with the ventilation hole on the bracket.

5. The camera module according to any one of claims 1 to 4, further comprising a lens barrel, wherein the lens barrel comprises a first open end and a second open end which are oppositely arranged, the lens is enclosed in the first open end of the lens barrel, and the side of the bracket facing the lens covers the second open end of the lens barrel;

the lens barrel is provided with a vent hole, the soft rubber valve is packaged in the vent hole on the lens barrel, and the soft rubber valve is provided with at least one gap.

6. The camera module of claim 5, wherein the soft rubber valve disposed on the lens barrel and the lens barrel are integrally formed, or the soft rubber valve on the lens barrel and the air hole on the lens barrel are tightly fitted.

7. The camera module of claim 5, wherein the vent holes of the bracket are located within a coverage area of the second open end of the lens barrel.

8. The camera module according to claim 5, wherein an encapsulating adhesive layer is disposed between the second opening end of the lens barrel and the holder, and the lens barrel and the holder are hermetically connected by the encapsulating adhesive layer.

9. The camera module of any of claims 1-4, further comprising a drive device, wherein the drive device comprises a housing, and the lens is movably disposed in the housing.

10. The camera module of claim 9, wherein the filter assembly and the image sensor assembly are disposed within the housing;

11. The camera module according to any one of claims 1 to 4, wherein the image sensor assembly includes a circuit board and an image sensor disposed on the circuit board, a region of the circuit board located at a periphery of the image sensor is a package region, and the bracket is fixed in the package region.

12. The camera module of claim 11, wherein the filter and the image sensor are both located on an outgoing light path of the lens.

13. An electronic device comprising at least one camera module according to any one of claims 1-12.