CN211481357U - Camera module and electronic equipment - Google Patents

Abstract

The application relates to the technical field of camera modules, in particular to a camera module and electronic equipment. The camera module comprises a lens, a voice coil motor, an optical filter, a bracket, an image sensor, a circuit board and a breathable film, wherein light can enter from the lens and irradiate the image sensor through the optical filter; the support is fixed on the circuit board, the optical filter, the support and the circuit board enclose a first cavity, at least one of the voice coil motor, the support and the circuit board is provided with air holes, and the first cavity is communicated with the air holes; the breathable film is connected with the air holes and is made of a waterproof breathable material. The camera module is provided with the breathable film connected with the air holes, so that the first cavity can be communicated with the outside through the air holes, and the optical filter can be prevented from being cracked due to the change of the internal pressure and the external pressure of the camera module; the breathable film is made of waterproof breathable materials, so that external dust particles or moisture can be prevented from entering the camera module from the breathable holes.

Description

Camera modules and electronic equipment

technical field

The present application relates to the technical field of camera modules, and in particular, to a camera module and an electronic device.

Background technique

To improve image quality, electronic devices such as mobile phones and tablets are usually equipped with camera modules with focusing functions. A camera module with focusing function generally includes a lens, a voice coil motor (VCM), a filter, a bracket, an image sensor and a circuit board, wherein: the lens is housed in the voice coil motor; the voice coil motor It is used to adjust the position of the lens to make the camera show the clearest state; the filter is fixed on the bracket to filter out infrared light; the bracket is fixed to the circuit board to support the voice coil motor and lens; image sensor It is fixed on the circuit board and is used to convert optical signals into electrical signals.

In the related art, as shown in FIG. 1 and FIG. 2 , the bracket 4 ′ is provided with a ventilation hole 41 ′. After the camera module is assembled, the ventilation hole 41 ′ is usually sealed with hot melt adhesive 411 ′ to prevent the outside The dust or water vapor enters the camera module from the ventilation hole 41' (ie, the cavity 4a' formed by the filter 3', the bracket 4' and the circuit board 6'), so as to prevent external dust or water from entering the camera module. The gas damages the image sensor 5'. However, in the actual assembly or application process of electronic equipment, there will be pressure changes. For example, when the pressure difference between the inside and outside of the camera module is greater than 0.3Mpa, stress may be concentrated on the filter 3 mounted on the bracket 4'. ', which may cause the filter 4' to break. Among them, the situation of pressure change includes: for example, when the flexible display panel and flexible protective film of a folding screen mobile phone are assembled, the flexible protective film needs to be covered on the flexible display panel under vacuum or pressure, so as to provide a flexible display panel. Panel provides protection; another example, an assembled camera module may need to be tested for its dust and water resistance, so the camera module needs to be able to adapt to high pressure and dusty environments; another example, electronic equipment is sold to plateau or Nordic region, causing pressure changes.

Therefore, there is an urgent need for a new type of camera module and electronic device to solve the above problems.

Utility model content

The embodiments of the present application provide a camera module and an electronic device, which can not only prevent external dust particles or moisture from entering the inside of the camera module through the ventilation holes, but also prevent the filter from breaking.

In a first aspect, an embodiment of the present application provides a camera module, and the camera module includes:

lens;

a voice coil motor, wherein the lens is accommodated in the voice coil motor;

filter;

a bracket, the voice coil motor and the optical filter are fixed on the bracket;

an image sensor, the light can enter through the lens and irradiate to the image sensor through the filter;

a circuit board, the bracket is fixed on the circuit board, the filter, the bracket and the circuit board form a first cavity, the image sensor is fixed on the circuit board and accommodated in the In the first cavity, at least one of the voice coil motor, the bracket and the circuit board is provided with a ventilation hole, and the first cavity communicates with the ventilation hole;

A breathable film, the breathable film is connected with the breathable hole, and the breathable film is made of waterproof and breathable material.

It can be seen that the camera module provided by the present application is provided with a breathable film connected to the breathable hole, so that the first cavity can be communicated with the outside through the breathable hole, so that the filter may be avoided due to changes in the internal and external pressure of the camera module. Fragmentation; the breathable film is made of waterproof and breathable material, which can prevent external dust particles or moisture from entering the camera module from the ventilation holes.

In a possible design, the bracket includes a first bracket and a second bracket, the first bracket is provided with a first ventilation hole, the second bracket is provided with a second ventilation hole, and the first ventilation hole is provided The air-permeable film is arranged opposite to the second air-permeable hole and forms the air-permeable hole, and the air-permeable film is arranged between the first air-permeable hole and the second air-permeable hole. Through the connection of the first bracket, the second bracket and the breathable membrane, the breathable membrane can be more firmly fixed with the bracket.

In a possible design, the bracket is provided with the ventilation hole, and the ventilation film is provided on a side of the ventilation hole facing the circuit board and/or a side away from the circuit board.

In a possible design, the circuit board is provided with the ventilation hole, and the ventilation film is provided on a side of the ventilation hole facing the bracket and/or a side away from the bracket.

In a first aspect, another embodiment of the present application provides a camera module, the camera module comprising:

lens;

a voice coil motor, wherein the lens is accommodated in the voice coil motor, and the voice coil motor includes a support part disposed away from the lens;

an optical filter, the optical filter is fixed on the support part;

an image sensor, the light can enter through the lens and irradiate to the image sensor through the filter;

a circuit board, the support part is fixed on the circuit board, the filter, the support part and the circuit board form a first cavity, the image sensor is fixed on the circuit board and accommodated In the first cavity, at least one of the support portion and the circuit board is provided with a ventilation hole, and the first cavity communicates with the ventilation hole;

A breathable film, the breathable film is connected with the breathable hole, and the breathable film is made of waterproof and breathable material.

It can be seen that the camera module provided by the present application is provided with a breathable film connected to the breathable hole, so that the first cavity can be communicated with the outside through the breathable hole, so that the filter may be avoided due to changes in the internal and external pressure of the camera module. Fragmentation; the breathable film is made of waterproof and breathable material, which can prevent external dust particles or moisture from entering the camera module from the ventilation holes.

In a possible design, the lens and the voice coil motor enclose a second cavity, and the first cavity communicates with the second cavity through the ventilation hole;

The air-permeable film is arranged on the side of the air-permeable hole facing the circuit board and/or the side away from the circuit board. Since the base plate of the voice coil motor is used to replace the bracket in the foregoing possible design, omitting the bracket is beneficial to reduce the manufacturing cost, the height of the camera module, and the weight of electronic devices such as mobile phones.

In a possible design, the circuit board is provided with the ventilation hole, and the ventilation film is provided on a side of the ventilation hole facing the support portion and/or a side away from the support portion.

In a possible design, the camera module further includes a connecting piece, and the breathable film is connected to the breathable hole through the connecting piece, so that the breathable film can be more firmly fixed to the bracket.

In a possible design, the connecting member is provided with a through hole arranged opposite to the ventilation hole. When the connecting piece is an adhesive film, in order to ensure that the gas can pass through the connecting piece smoothly, the connecting piece is provided with a through hole opposite to the ventilation hole.

In a possible design, the air-permeable membrane is connected to the air-permeable hole through a hot pressing process, which has a simple process and can save the cost of the connection parts.

In a possible design, the waterproof and breathable material includes at least one of polymer materials such as breathable polyurethane material, breathable polyethylene material, breathable polypropylene material, and breathable polytetrafluoroethylene material.

In a second aspect, an embodiment of the present application provides an electronic device, where the electronic device includes the camera module as described above.

Description of drawings

1 is an exploded schematic view of a part of a camera module provided by the related art;

2 is a schematic cross-sectional view of a part of a camera module provided by the related art;

3 is a schematic structural diagram of a camera module provided by an embodiment of the present application;

FIG. 4 is an exploded schematic diagram of a camera module provided by an embodiment of the present application;

FIG. 5 is an exploded schematic view of the bracket and the breathable film in the camera module shown in FIG. 4;

6 is a schematic cross-sectional view of the camera module shown in FIG. 4 except for the lens and the voice coil motor;

7 is a schematic cross-sectional view of a camera module provided by yet another embodiment of the present application except for a lens and a voice coil motor;

FIG. 8 is an exploded schematic diagram of a camera module provided by another embodiment of the present application;

FIG. 9 is an exploded schematic diagram of a camera module provided by another embodiment of the present application;

10 is a schematic structural diagram of a voice coil motor in the camera module shown in FIG. 9;

11 is a schematic cross-sectional view of the camera module shown in FIG. 9;

12 is an exploded schematic diagram of a camera module provided by yet another embodiment of the present application;

FIG. 13 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

Reference number:

3'-filter;

4' - bracket;

4a' - cavity;

41'-Vent hole;

411' - hot melt adhesive;

5'-image sensor;

6' - circuit board;

100 - electronic equipment;

10-camera module;

20 - shell;

30-display;

1 - lens;

2-Voice coil motor;

2a - support part;

21 - shell;

211 - the first installation part;

22 - bottom plate;

221 - the third installation part;

222 - mounting hole;

23 - the second cavity;

24 - carrier;

3- filter;

4- bracket;

4a - the first cavity;

41-Vent hole;

42 - the second installation part;

43 - the first bracket;

431 - the first ventilation hole;

432 - the first mounting hole;

44-Second bracket;

441 - the second ventilation hole;

442 - the second mounting hole;

5-image sensor;

6- circuit board;

7-Breathable membrane;

71-the third mounting hole;

8-connector;

81 - Through hole.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description serve to explain the principles of the application.

Detailed ways

The present application will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "first" and "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance; unless otherwise specified Or to illustrate, the term "plurality" refers to two or more; the terms "connection" and "fixed" should be understood in a broad sense, for example, "connection" can be a fixed connection or a detachable connection, or Connected integrally, or connected electrically; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

In the description of this specification, it should be understood that the directional words such as "upper" and "lower" described in the embodiments of the present application are described from the perspective shown in the accompanying drawings, and should not be construed as referring to the embodiments of the present application. limited. Also, in this context, it should also be understood that when an element is referred to as being "on" or "under" another element, it can not only be directly connected "on" or "under" the other element, but also Indirectly connected "on" or "under" another element through intervening elements.

To improve image quality, electronic devices such as mobile phones and tablets are usually equipped with camera modules with focusing functions. The camera module with focusing function generally includes a lens, a voice coil motor, a filter, a bracket, an image sensor and a circuit board, wherein: the lens is housed in the voice coil motor; the voice coil motor is used to adjust the position of the lens, Make the camera in the clearest state; the filter is fixed on the bracket to filter out infrared light; the bracket is fixed on the circuit board to support the voice coil motor and lens; the image sensor is fixed on the circuit board, with for converting optical signals into electrical signals.

As shown in FIG. 3 and FIG. 4 , the camera module 10 includes a lens 1, a voice coil motor 2, a filter 3, a bracket 4, an image sensor (also called an image sensor) 5 and a circuit board 6, wherein:

The lens 1 is generally cylindrical, and includes a lens barrel and a lens set in the lens barrel. The voice coil motor 2 has a generally rectangular parallelepiped shape, and includes a housing 21 and a first mounting portion 211 formed in the housing 21 , and the lens 1 (or lens barrel) is mounted inside the housing 21 through the first mounting portion 211 . In some embodiments, the housing 21 of the voice coil motor 2 may be conductive, for example, the housing 21 may be made of magnetic shielding materials such as nickel-iron alloy, conductive plastic, surface conductive material, conductive glass, etc., so as to eliminate external electromagnetic interference Disturbance of lap motor 2.

In some embodiments, the voice coil motor 2 and the bracket 4 are fixed by thermosetting glue or solder paste, and the bracket 4 is fixed on the circuit board 6 (for example, fixed by thermosetting glue or solder paste) to support the voice coil motor 2 and lens 1. A pin (not shown in the figure) is also provided on the side of the voice coil motor 2 close to the circuit board 6, and the pin can be electrically connected to the circuit board 6 by soldering, so that the circuit board 6 can be used to transmit electrical signals through the lead The feet are transmitted to the voice coil motor 2. A carrier 24 (see FIG. 11) is arranged in the casing 21 of the voice coil motor 2. The carrier 24 is fixed on the bottom plate of the voice coil motor 2 through a spring plate (not shown in the figure). The outer periphery of 24 is provided with a coil (not shown in the figure), and the voice coil motor 2 uses the coil to generate a magnetic field, which acts on the carrier 24 to drive the lens 1 to move back and forth to achieve automatic focusing, thereby making the image clearer. For example, the outside of the lens barrel is provided with external threads, and the inner wall of the carrier 24 is provided with internal threads, so that the connection between the lens 1 (or the lens barrel) and the voice coil motor 2 is realized. In some implementations, the shape of the pins can be cylindrical, prismatic, or flat bar.

The filter 3 is fixed on the bracket 4 . For example, the bracket 4 is provided with a second installation portion 42 , and the filter 3 is fixed to the second installation portion 42 by thermosetting glue. The filter 3 can be an infrared filter, such as a white glass filter, a blue glass filter or a Plexiglas filter or the like. In some implementations, the filter 3 can also be other filters that can filter out infrared rays, such as narrow-band filters or other types of band-pass filters, so that the filter 3 can filter out infrared light, for better image display. The shape of the filter 3 may be a rectangle, a circle or other shapes, as long as the projection of the filter 3 onto the image sensor 5 can completely cover the image sensor 5 . Of course, the filter 3 of the camera module 10 may also be a filter capable of filtering out ultraviolet light or visible light, which is not specifically limited in this application.

The image sensor 5 can be fixed on the circuit board 6 by thermosetting glue to realize electrical connection with the circuit board 6 . In some implementations, the image sensor 5 can also be fixed on the circuit board 6 by solder paste. The image sensor 5 can be a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS) sensor for converting optical signals into electrical signals.

As mentioned in the background art, after the camera module is assembled, the filter 3', the bracket 4' and the circuit board 6' together form a cavity 4a'. The bracket 4' is provided with a vent hole 41', and when the hot melt adhesive 411' seals the vent hole 41', the cavity 4a' is not communicated with the outside world (ie, sealed). However, in the actual assembly or application process of electronic equipment, there will be pressure changes. For example, when the pressure difference between the inside and outside of the camera module is greater than 0.3Mpa, stress may be concentrated on the filter 3 mounted on the bracket 4'. ', which may cause the filter 4' to break. In order to eliminate or reduce the pressure difference, so as to ensure that the bracket 4' can be better fixed with the circuit board 6' and protect the optical filter 3', the cavity 4a' needs to be in communication with the outside world. In order to prevent external dust particles or water vapor from entering the cavity 4a' from the ventilation holes 41', and to satisfy the communication between the cavity 4a' and the outside world at the same time, hot melt adhesive can be used, but the support 4' can be used. An air-permeable film connected to the air-permeable hole 41 ′ is arranged on the upper part to avoid the risk of cracking of the optical filter 3 ′ when the camera module encounters a situation where the pressure changes greatly.

4 is an exploded schematic view of a camera module provided by an embodiment of the application, FIG. 5 is an exploded schematic view of a bracket and a breathable film in the camera module shown in FIG. 4 , and FIG. 6 is a camera module shown in FIG. 4 except for a lens and a voice coil Schematic cross-section outside the motor. 4 to 6 , in this embodiment, the bracket 4 , the optical filter 3 and the circuit board 6 together form a first cavity 4 a . The bracket 4 includes a first bracket 43 and a second bracket 44. A gas permeable membrane 7 is arranged between the first bracket 43 and the second bracket 44. The first bracket 43, the second bracket 44 and the gas permeable membrane 7 are fixed to each other. It can be fixed by means of compression molding or gluing (that is, thermosetting adhesive can be used as a connecting piece for fixing), so that the air-permeable membrane 7 and the bracket 4 can be fixed more firmly. The first support 43 is provided with a first ventilation hole 431, the second support 44 is provided with a second ventilation hole 441, and the ventilation film 7 is provided between the first support 43 and the second support 44, that is, the first ventilation hole The ventilation holes 431 and the second ventilation holes 441 are disposed opposite to each other through the ventilation film 7 and form the ventilation holes 43 . For example, the projection of the first ventilation hole 431 on the second bracket 44 completely or partially overlaps with the second ventilation hole 441 . It can be understood that the shape and area of the air-permeable membrane 7 can be roughly the same as the shape and area of the first bracket 43 or the second bracket 44, of course, it can also be different, as long as the air-permeable membrane 7 is arranged in the first ventilation hole 431 and the second bracket 44. Between the ventilation holes 441 is sufficient. The number of the first ventilation hole 431 and the second ventilation hole 441 is at least one, and the shape may be a column shape, a truncated cone shape, a bar shape, or the like. The first ventilation hole 431 , the second ventilation hole 441 and the ventilation film 7 work together to communicate the first cavity 4a with the outside world. A vent hole 41 (or a first vent hole 431 and a second vent hole 441) is provided on the bracket 4, and the first cavity 4a is communicated with the outside through the vent hole 41, so that it can be avoided when the camera module 10 encounters a high pressure change. In a large case, there is a risk that the filter 3 will be broken.

In this embodiment, the first bracket 43 is provided with a first installation hole 432 , the second bracket 44 is provided with a second installation hole 442 , the breathable membrane 7 is provided with a third installation hole 71 , the first installation hole 432 and the third installation hole 432 The holes 71 and the second mounting holes 442 are arranged in sequence, and the second bracket 44 is further provided with a second mounting portion 42 . The second mounting portion 42 may be a stepped structure adjacent to or surrounding the second mounting hole 442 . It can be known that the projected area of the first installation hole 432 and the third installation hole 71 to the plane where the second installation hole 442 is located is at least larger than that of the second installation hole 442, so that the filter 3 can be installed in the second installation hole. The second mounting portion 42 around the 442 , so that the light can pass through the filter 3 and irradiate to the image sensor 5 . Of course, the filter 3 can also be installed around the first installation hole 432, but when the filter 3 is installed around the second installation hole 442, the filter 3 can be embedded in the bracket 4, so that the filter can be The light sheet 3 will not exceed the outer surface of the first bracket 43 , so that the mounting structure of the bracket 4 and the light filter 3 can be more compact.

In some embodiments, the breathable membrane 7 is made of a waterproof and breathable material, such as at least one of polymer materials such as breathable polyurethane material, breathable polyethylene material, breathable polypropylene material, and breathable polytetrafluoroethylene material. . The micropore diameter of the breathable membrane 7 made of waterproof and breathable material is 0.1-0.5 μm, the diameter of dust particles in the air is generally at least a few microns, and the minimum diameter of water mist is 20 μm, so that dust particles and water mist cannot pass through the ventilation. Membrane 7, so as to achieve the effect of waterproof and breathable.

FIG. 7 is yet another embodiment of the present application. In this embodiment, the rest are the same except that the arrangement of the stent 4 and the air-permeable membrane 7 is different from that of the embodiment shown in FIGS. 4 to 6 . In this embodiment, at least part of the first bracket 43 and the second bracket 44 are connected, that is, the bracket 4 and the breathable membrane 7 are integrally injection-molded, that is, the breathable membrane 7 can be put into the cavity first (Fig. (not shown in the figure), and then inject the material for forming the bracket 4 into the mold cavity (for example, it can be plastic). The integral injection molding process may adopt a double-material injection molding process or an in-mold transfer molding process. It should be noted that the stent 4 in this embodiment is actually a whole. In order to reflect that the stent 4 is covered on the outside of the gas permeable membrane 7, the stent 4 can be regarded as including the first stent 43 and the second stent 44, wherein the first stent 43 and the second stent 44 are included. The structure of the bracket 43 and the second bracket 44 can be considered to be the same as the structure of the bracket 4 shown in FIG. 6 except that they have connected parts. The bracket 4 and the breathable membrane 7 are made by an integral injection molding process, which can also ensure that the breathable membrane 7 can be firmly fixed to the bracket 4 .

FIG. 8 is yet another embodiment of the application. In this embodiment, the rest are the same except that the arrangement of the stent 4 and the air-permeable membrane 7 is different from that of the embodiment shown in FIGS. 4 to 6 . In this embodiment, the air-permeable film 7 is connected to the bracket 4 through the connector 8, wherein the air-permeable film 7 can be disposed on the surface of the air-permeable hole 41 on the side facing the circuit board 6 and/or on the surface of the side away from the circuit board 6, so that it can be Therefore, the air-permeable membrane 7 can be more firmly fixed with the bracket 4 . In some implementations, the connecting member 8 may be a thermosetting glue, and the breathable film 7 can be firmly attached to the breathable hole 41 through the thermosetting glue. In other implementation solutions, the connecting member 8 may also be a plastic film. In order to ensure that the gas can pass through the connecting member 8 smoothly, the connecting member 8 is provided with a through hole 81 opposite to the ventilation hole 41 . The aperture of the through hole 81 should be at least larger than the aperture of the vent hole 41 on the side close to the gas permeable membrane 7, so as to facilitate the circulation of gas.

Of course, the air-permeable membrane 7 may not be fixed to the bracket 4 by the connecting member 8, that is, the connecting member 8 may also be omitted. For example, the air-permeable membrane 7 can be connected to the air-permeable hole 41 (ie, fixed on the bracket 4 ) through a hot pressing process, which is a simple process and can save the cost of the connection member 8 .

FIG. 9 is an exploded schematic diagram of a camera module provided by another embodiment of the present application; FIG. 10 is a schematic structural diagram of a voice coil motor in the camera module shown in FIG. 9 ; FIG. 11 is a schematic cross-sectional view of the camera module shown in FIG. 9 . 9 to 11 , in this embodiment, the voice coil motor 2 includes a support portion 2a away from the lens 1, the filter 3 is fixed on the support portion 2a, the support portion 2a is fixed on the circuit board 6, and the support portion 2a has The bracket 4 in the previous embodiment has the same function, for example, can play the role of supporting the voice coil motor 2 , that is, it can be considered that the bracket 4 in the previous embodiment is omitted in this embodiment. It should be noted that the side of the voice coil motor 2 away from the lens 1 is provided with a bottom plate 22, and the support portion 2a includes the bottom plate 22 and a part of the casing 21 surrounding the bottom plate 22, so that the support portion 2a has the same characteristics as in the previous embodiment. The bracket 4 has the same function. In this embodiment, the filter 3 , the support portion 2 a and the circuit board 6 enclose the first cavity 4 a.

In this embodiment, the support portion 2a is provided with a ventilation hole 41, specifically, the bottom plate 22 of the support portion 2a is provided with a ventilation hole 41, and the center of the bottom plate 22 is also provided with a mounting hole 222 for installing the filter 3. The sheet 3 is mounted on the second mounting portion 42 around the mounting hole 222 . It can be understood that the mounting hole 222 has the same function as the first mounting hole 432 , the second mounting hole 442 and the third mounting hole 71 in the foregoing embodiment. In this embodiment, the base plate 22 of the voice coil motor 2 is used to replace the bracket in the previous embodiment, that is, by omitting the bracket 4 , it is beneficial to reduce the manufacturing cost, reduce the height of the camera module 10 , and reduce the cost of electronic equipment such as mobile phones. weight.

In this embodiment, please refer to FIG. 11 , the ventilation hole 41 is formed on the bottom plate 22 of the voice coil motor 2 , the lens 1 and the voice coil motor 2 enclose the second cavity 23 , specifically, the lens 1 , the housing 21 and the bottom plate 22 The second cavity 23 is formed together. The second cavity 23 accommodates a carrier 24 , and the carrier 24 plays a role of supporting the lens 1 . The action of the carrier 24 has been described above, and will not be repeated here. The first cavity 4a is communicated with the second cavity 23 through the ventilation hole 41, so that the risk of cracking of the optical filter 3 may be avoided when the camera module 10 encounters a large pressure change. It should be noted that, the second cavity 23 has the same function as the "outside" mentioned in the previous embodiment, and is connected with the first cavity 4a, for when the camera module 10 encounters a large pressure change, The function of reducing the pressure difference between the inside and outside of the first cavity 4a can prevent the filter 3 from breaking.

In other implementations, a through hole may also be formed on the housing 21 , and the through hole may serve to communicate the second cavity 23 with the outside world. However, under normal circumstances, passing the first cavity 4a through the ventilation holes 41 and the second cavity 23 can prevent the filter 3 from breaking. Second, the appearance of the voice coil motor 2 will be affected. Therefore, the first cavity 4a and the second cavity 23 may be communicated with each other through the ventilation hole 41 .

In this embodiment, the breathable film 7 is arranged on the side of the ventilation hole 41 facing the circuit board 6 and/or the side away from the circuit board 6 , for example, when the breathable film 7 is arranged on the side of the ventilation hole 41 facing the circuit board 6 , the breathable film 7 is located in the first cavity 4a; and when the breathable film 7 is disposed on the side of the ventilation hole 41 away from the circuit board 6, the breathable film 7 is located in the second cavity 23. That is to say, when the air-permeable film 7 is arranged on the side of the ventilation hole 41 facing the circuit board 6 and/or the side away from the circuit board 6, the air-permeable film 7 is located inside the camera module 10, so as to ensure that the air-permeable film 7 is not affected. On the premise of the appearance of the camera module 10 , the waterproof and breathable effect of the camera module 10 can be achieved.

9 and 10 , the bottom plate 22 of the voice coil motor 2 is further provided with a third mounting portion 221, the breathable membrane 7 can be mounted on the third mounting portion 221, and the third mounting portion 221 Around the hole 41, since the third mounting portion 221 is disposed on the bottom plate 22, that is, the gas permeable membrane 7 is located inside the first cavity 4a. In this way, the air-permeable membrane 7 can be conveniently installed on the third mounting portion 221 , that is, it is more convenient to install the air-permeable membrane 7 in the first cavity 4 a than in the second cavity 23 . In some implementations, the third installation portion 221 may be an annular structure, and the air-permeable membrane 7 is fixed to the third installation portion 221 through the connecting member 8 , so that the installation strength of the air-permeable membrane 7 can be ensured.

FIG. 12 is yet another embodiment of the application. Different from the previous embodiments, in this embodiment, the circuit board 6 is provided with a ventilation hole 41 , and the ventilation film 7 is provided on the side of the ventilation hole 41 facing the bracket 4 and/or the side away from the bracket 4 . For example, the air-permeable film 7 can be attached to the side of the air-permeable hole 41 facing the bracket 4 and/or the side away from the bracket 4 by heat pressing. For another example, the air-permeable membrane 7 can also be attached to the side of the ventilation hole 41 toward and/or away from the bracket 4 through the connector 8 , wherein the connector 8 is provided with a through hole 81 opposite to the ventilation hole 41 . In some implementations, the breathable film 7 is disposed on the side of the circuit board 6 facing the bracket 4 , that is, the breathable film 7 is disposed inside the camera module 10 . In this way, the waterproof and breathable effect of the camera module 10 can be achieved. Of course, the breathable film 7 can also be disposed on the outer surface of the camera module 10 (or the circuit board 6 ), that is, the breathable film 7 can be disposed on the side of the air hole 41 away from the bracket 4 .

It should be noted that the foregoing embodiments can be combined, as long as it is ensured that at least one of the bracket 4 , the voice coil motor 2 and the circuit board 6 is provided with a vent hole 41 and a vent film 7 connected to the vent hole 41 . Alternatively, it is only necessary to ensure that at least one of the voice coil motor 2 and the circuit board 6 is provided with a vent hole 41 and a vent film 7 connected to the vent hole 41 .

As shown in FIG. 13 , an embodiment of the present application further provides an electronic device 100 . The electronic device 100 includes a camera module 10 and a housing 20 , wherein the camera module 10 is the camera module 10 mentioned in the above content.

In some embodiments, the camera module 10 may be disposed within the housing 20 . For example, an avoidance hole (not shown in the figure) may be provided on the housing 20, and the avoidance hole is located at the position of the dotted frame in FIG. 13 to allow light to enter the camera module 10, so that the camera module can be easily used. Group 10 was photographed.

In other embodiments, the electronic device 100 further includes a display screen 30 , the display screen 30 is arranged on one side (eg, the front side) of the casing 20 , and the camera module 10 may be arranged on the other side (eg, the rear side) of the casing 20 . side).

In some embodiments, the electronic device 100 may be any of various types of computer system devices that are mobile or portable and perform wireless communications (eg, the cell phone shown in FIG. 13 ). In some implementations, the electronic device 100 may be a mobile phone or smartphone (eg, an iPhone™-based or Android™-based phone), a portable gaming device (eg, a Nintendo DS™, Play Station Portable™, Gameboy Advance™, or iPhone™, etc.) , laptops, PDAs, portable Internet devices, music players, and data storage devices, other handheld devices and devices such as watches, in-ear headphones, pendants, headphones, etc., the electronic device 100 may also be other wearable devices (such as electronic glasses, electronic clothing, electronic bracelets, electronic necklaces, electronic tattoos or head-mounted devices for smart watches).

The electronic device 100 may also be any of a plurality of electronic devices 100 including, but not limited to, cellular phones, smart phones, other wireless communication devices, personal digital assistants, audio players, other media players, music Recorders, VCRs, Cameras, Other Media Recorders, Radios, Medical Equipment, Vehicle Transportation Instruments, Calculators, Programmable Remote Controls, Pagers, Laptops, Desktops, Printers, Netbooks, Personal Digital Assistants (PDAs) , Portable Multimedia Players (PMP), Moving Picture Experts Group (MPEG-1 or MPEG-2) Audio Layer (MP3) players, portable medical devices and digital cameras and combinations thereof.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the present application. within the scope of protection.

Claims (12)

1. A camera module, wherein the camera module comprises: lens; a voice coil motor, wherein the lens is accommodated in the voice coil motor; filter; a bracket, the voice coil motor and the optical filter are fixed on the bracket; an image sensor, the light can enter through the lens and irradiate to the image sensor through the filter; a circuit board, the bracket is fixed on the circuit board, the filter, the bracket and the circuit board form a first cavity, the image sensor is fixed on the circuit board and accommodated in the In the first cavity, at least one of the voice coil motor, the bracket and the circuit board is provided with a ventilation hole, and the first cavity communicates with the ventilation hole; A breathable film, the breathable film is connected with the breathable hole, and the breathable film is made of waterproof and breathable material. 2. The camera module according to claim 1, wherein the bracket comprises a first bracket and a second bracket, The first support is provided with a first ventilation hole, the second support is provided with a second ventilation hole, the first ventilation hole and the second ventilation hole are arranged opposite to form the ventilation hole, and the ventilation film It is arranged between the first ventilation hole and the second ventilation hole. 3 . The camera module according to claim 1 , wherein the bracket is provided with the ventilation hole, and the ventilation film is provided on the side of the ventilation hole facing the circuit board and/or away from the circuit board. 4 . side of the circuit board. 4 . The camera module according to claim 1 , wherein the circuit board is provided with the ventilation hole, and the ventilation film is provided on the side of the ventilation hole facing the bracket and/or away from the support. 5 . side of the bracket. 5. A camera module, wherein the camera module comprises: lens; a voice coil motor, wherein the lens is accommodated in the voice coil motor, and the voice coil motor includes a support part disposed away from the lens; an optical filter, the optical filter is fixed on the support part; an image sensor, the light can enter through the lens and irradiate to the image sensor through the filter; a circuit board, the support part is fixed on the circuit board, the filter, the support part and the circuit board form a first cavity, the image sensor is fixed on the circuit board and accommodated In the first cavity, at least one of the support portion and the circuit board is provided with a ventilation hole, and the first cavity communicates with the ventilation hole; A breathable film, the breathable film is connected with the breathable hole, and the breathable film is made of waterproof and breathable material. 6 . The camera module according to claim 5 , wherein the lens and the voice coil motor enclose a second cavity, and the first cavity is connected to the second cavity through the ventilation hole. 7 . body connection; The air-permeable film is arranged on the side of the air-permeable hole facing the circuit board and/or the side away from the circuit board. 7 . The camera module according to claim 5 , wherein the circuit board is provided with the ventilation hole, and the ventilation film is provided on a side of the ventilation hole facing the support portion and/or away from the support portion 7 . one side of the support portion. 8 . The camera module according to claim 1 , wherein the camera module further comprises a connecting piece, and the air-permeable film is connected to the ventilation hole through the connecting piece. 9 . 9 . The camera module according to claim 8 , wherein the connector is provided with a through hole opposite to the ventilation hole. 10 . 10 . The camera module according to claim 1 , wherein the air-permeable film is connected to the air-permeable hole through a hot pressing process. 11 . 11. The camera module according to any one of claims 1-7, wherein the waterproof and breathable material comprises breathable polyurethane material, breathable polyethylene material, breathable polypropylene material and breathable polytetrafluoroethylene At least one of polymer materials such as vinyl fluoride materials. 12. An electronic device, wherein the electronic device comprises the camera module according to any one of claims 1-11.

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