CN113472986B

CN113472986B - Camera module and electronic equipment

Info

Publication number: CN113472986B
Application number: CN202110727651.0A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Jiangxi Jinghao Optical Co Ltd
Current assignee: Jiangxi Jinghao Optical Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2023-04-18
Anticipated expiration: 2041-06-29
Also published as: CN113472986A

Abstract

The invention provides a camera module and electronic equipment. The camera module comprises a lens assembly, a shell, an air inlet, an air outlet and a circulation passage. The lens assembly is arranged on the shell, the object side surface of the lens assembly is close to the opening and used for receiving light rays incident from the opening, and the shell comprises a surrounding part which is positioned at the top of the shell and surrounds the opening; the air outlet is arranged on the surrounding part, and the air inlet is arranged on the outer side surface of the shell; a circulation passage is arranged between the lens assembly and the shell, and the circulation passage is communicated with the air outlet and the air inlet; the air guide structure is arranged on the circulation passage or the air inlet and is used for guiding outside air flow into the circulation passage and forming air flow at the air outlet. The application provides a module of making a video recording realizes active exhaust through wind-guiding structure, can adapt to more application environment.

Description

Camera module and electronic equipment

Technical Field

The present disclosure relates to camera modules, and particularly to a camera module and an electronic device.

Background

The vehicle-mounted lens is arranged on the outer side of the vehicle and is easily polluted by impurities such as water or dust, and particularly in rainy days, rainwater covers the lens to influence the shooting effect of the camera module. The air current that produces among the prior art through the vehicle driving process blows off the impurity on camera lens surface, reaches dewatering dust removal effect, then loses rain-proof dewatering dust removal effect when the vehicle stops nevertheless, can't be applicable to manifold application scene.

Disclosure of Invention

The invention aims to provide a camera module. The module of making a video recording includes lens subassembly, casing, air intake, air outlet and circulation passageway. The lens assembly is arranged on the shell, the object side surface of the lens assembly is close to the opening and used for receiving light rays incident from the opening, and the shell comprises a surrounding part which is positioned at the top of the shell and surrounds the opening; the air outlet is arranged on the surrounding part, and the air inlet is arranged on the outer side surface of the shell; a circulation passage is arranged between the lens assembly and the shell, and the circulation passage is communicated with the air outlet and the air inlet; the air guide structure is arranged on the circulation passage or the air inlet and is used for guiding outside air flow into the circulation passage and forming air flow at the air outlet.

In a possible implementation manner, the casing further comprises a side wall, the side wall is located at the side portion of the casing and fixedly connected with the surrounding portion, the side wall of the casing and the lens assembly are arranged at intervals, a cavity or a plurality of cavities are formed between the side wall of the casing and the lens assembly, and the cavity or the plurality of cavities are used as a circulation passage.

In a possible implementation, the camera module further comprises a mounting part for mounting the lens assembly, the mounting part is located between the casing and the lens assembly and is fixedly connected with the casing, the lens assembly is mounted on the mounting part, and the mounting part is arranged at an interval with the casing and forms a cavity or a plurality of cavities with the casing.

In a possible implementation manner, the surrounding portion is concave toward the image side of the lens assembly, and an area of a cross section surrounded by an inner side contour line obtained by cutting the surrounding portion by a plane perpendicular to the optical axis is increased along the object side direction of the optical axis, so that the air outlet is inclined toward the direction close to the lens assembly.

In one possible implementation mode, the air outlet is provided with a plurality of air outlets which are arranged at intervals; and/or the air inlets are multiple, and each air inlet is at least communicated with one air outlet.

In a possible implementation manner, the air outlets include the openings located in the surrounding portion and the air guide slopes connected with the circulation passage, and the air guide slopes of each air outlet are inclined at the same acute angle along the same direction with the optical axis so that the airflow formed by each air outlet rotates clockwise or counterclockwise to form a cyclone.

In one possible implementation manner, the air guide structure comprises a fan, and the fan is arranged close to the air inlet and is fixedly connected with the outer side wall of the camera module; after entering the circulation passage through the air inlet, the outside air is discharged from the air outlet and acts on the lens assembly.

In a possible implementation mode, the camera module further comprises a fan housing, the fan housing is fixed on the outer side wall of the housing, a containing space is formed between the fan housing and the outer side wall of the housing, the fan is contained in the containing space and fixed on the inner wall of the containing space, the fan housing comprises an air inlet, and the containing space is communicated with the air inlet and is communicated with the outside through the air inlet.

In a possible implementation manner, the camera module further comprises a waterproof breathable film and/or a foreign matter prevention protection net, and the foreign matter prevention protection net covers the air inlet and/or the air outlet; the waterproof breathable film is arranged at the inner side of the air outlet, and the periphery of the waterproof breathable film is attached to the inner wall of the circulation passage; and/or the waterproof breathable films are arranged at intervals.

In a possible implementation, the camera module further comprises a circuit board, an image sensor and a connector, the circuit board is fixed on the bottom wall of the camera module, the image sensor is connected with the circuit board, and the connector is connected with the circuit board and penetrates through the bottom wall of the camera module.

The invention also aims to provide electronic equipment which comprises the camera module in the implementation mode.

In summary, the camera module and the electronic device provided by the invention realize active exhaust through the fan, and can adapt to more application environments. In addition, the air outlet of the module of making a video recording is to the direction slope that is close to the lens subassembly, when playing dewatering, dust removal's effect for the air current can spiral in the round platform form space that the surrounding part inside wall encloses, forms the spiral vortex, thereby forms the gas barrier in the lens subassembly outside, plays rain-proof sand-proof effect, promotes the shooting quality of module and electronic equipment in adverse circumstances such as rainy day, sand storm of making a video recording.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a camera module provided in the present application in some embodiments;

FIG. 2 is an exploded view of the camera module of FIG. 1;

fig. 3 is a schematic structural view of the camera module shown in fig. 1 at another angle;

FIG. 4 isbase:Sub>A schematic partial cross-sectional view of the camera module of FIG. 3 taken along line A-A;

FIG. 5 is a schematic partial cross-sectional view of the structure shown in FIG. 4;

FIG. 6 is a schematic view of the flow of the airflow outside the outlet shown in FIG. 3;

FIG. 7 is a partial schematic structural view of the housing of FIG. 4 in some other embodiments;

fig. 8 is a partial schematic structural view of the camera module shown in fig. 3 in some other embodiments, wherein the camera module shown in fig. 8 employs the housing shown in fig. 7;

fig. 9 is a schematic structural diagram of the fan shown in fig. 4 in some other embodiments.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides an electronic device. The electronic equipment can be a camera, vehicle-mounted equipment, a monitoring camera module and other automatic operation equipment. The automatic working equipment may include automatic welding equipment, automatic detection equipment, and the like. The electronic equipment can include the module of making a video recording and information processing module. The camera module is used for obtaining information of the external environment of the electronic equipment, such as images, temperature and the like. The camera module can be electrically connected with the information processing module. The information processing module can be used for receiving and processing information from the camera module and can also be used for driving the functional module in the camera module to realize corresponding functions.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a camera module 100 according to some embodiments of the present disclosure. Illustratively, the camera module 100 may include a housing 1, a camera body 2, and a fan housing 3. The fan housing 3 may be fixed to a side of the housing 1. The housing 1 may include an accommodating space in which the camera body 2 is at least partially accommodated. The camera body 2 may be installed in the housing 1.

Referring to fig. 2, fig. 2 is an exploded view of the camera module 100 shown in fig. 1.

Illustratively, the camera head body 2 may include a lens assembly 21, a circuit board assembly 22, and a connector 23. That is, the camera module 100 may include a lens assembly 21, a circuit board assembly 22 and a connector 23. Wherein, lens assembly 21 is mounted on housing 1. Specifically, the top of the housing 1 may have an opening, and the object side of the lens assembly 21 is adjacent to the opening and is used for receiving light incident from the opening. In the present application, a side of the lens assembly 21 close to an object is an object side, and a side opposite to the object side is an image side. Specifically, light enters from the object side, passes through the lens assembly inside the lens assembly, is projected to the image side, and forms an image on the image side. Understandably, the image side surface may be a light-sensing surface of a light-sensing element of the camera body 2, or a virtual surface on which an image formed by light passing through the lens group is located.

Illustratively, the circuit board assembly 22 is fixed to the bottom wall of the housing 1, that is, the circuit board assembly 22 is fixed to the bottom wall of the camera module 100, and the connector 23 is connected to the circuit board assembly 22.

Illustratively, the lens assembly 21 may be fixedly connected to the housing 1 by a screw type or an automatic positioning glue type. The lens assembly 21 may include a lens barrel and a lens (not shown) mounted on the lens barrel, the lens barrel may be made of metal, glass, plastic, or the like, and the lens may be made of optical material such as glass, plastic, or the like, which is not limited in this application. The number of lenses may be plural, and the present application does not limit the number of lenses.

For example, the lens assembly 21 may further include a protective cover (not shown), which may be fixedly connected to the lens barrel and disposed outside the lens group to protect the lens. The protective cover can be made of light-permeable materials, and the camera shooting effect cannot be influenced.

In this application, lens subassembly 21 can be used for receiving external optical information, and the light inlet face that also is lens subassembly 21 exposes in the open air, is susceptible to the influence of impurity such as water or dust. For example, the light entrance surface of the lens assembly 21 may be an outer surface of the lens facing the outside of the camera module 100, or an outer surface of the protective cover.

Illustratively, the circuit board assembly 22 may include a circuit board and an image sensor. The circuit board may be fixed to the bottom wall of the housing 1. The image sensor may be fixed on a side of the circuit board facing the lens assembly 21, and connected to the circuit board, for receiving and processing the optical information entering from the lens assembly 21, and transmitting the optical information to other functional modules through the circuit board.

For example, the circuit board may be made of FR4, rigid-flex board, or other materials, and the application does not limit the parameters of the circuit board, such as the material and the thickness.

Illustratively, the circuit board may be plural. The circuit boards are stacked and connected to each other. In the description of the embodiments of the present application, "a plurality" means two or more than two unless otherwise specified. "above" includes the present numbers, for example, two or more includes two. Further, in this application, a connection includes, but is not limited to, a fixed connection and an electrical connection.

For example, the plurality of circuit boards may include an image circuit board and a power circuit board. The image circuit board can be used for transmitting optical information, and the power circuit board can be used for providing a working power supply of the whole system architecture.

In other embodiments, the circuit board may be one circuit board, and the functions of the image circuit board and the power circuit board are integrated.

Illustratively, one end of the connector 23 may be connected to the circuit board, and the other end extends through the bottom wall of the housing 1 and extends out of the housing 1. I.e. the connector 23 may extend through the bottom wall of the camera module 100. The connector 23 can be used for signal connection and transmission with devices outside the camera module 100, such as a vehicle or a system side. The connector 23 may be a coaxial connector, and the connector 23 may adopt a connection manner such as Fakra, and the interface may adopt various types of Type interfaces or other manners, which is not limited in this application.

Illustratively, the housing 1 may include an upper housing 11 and a lower housing 12. The upper shell 11 and the lower shell 12 can be assembled together through a connecting piece, so that the manufacturing difficulty of the shell 1 is reduced, the manufacturing efficiency is improved, and the cost is saved. In other embodiments, the housing 1 may be an integrally formed structure to improve the structural integrity, which is not limited in this application.

Illustratively, the housing 1 has a protection function and may be made of metal or plastic.

Referring to fig. 3, fig. 3 is a schematic structural view of the camera module 100 shown in fig. 1 at another angle. For example, the camera module 100 may include an air outlet 111 and an air inlet 112. The top of the housing 1 may have an opening, and the surrounding portion 110 may be located at the top of the housing 1 and surround the opening. The air outlet 111 may be disposed at the surrounding portion 110. The air inlet 112 may be provided at an outer side of the housing 1.

For example, the air outlet 111 and/or the air inlet 112 may be multiple to improve air circulation efficiency. A plurality of air outlets 111 and/or air inlets 112 may be spaced apart from each other, and the shapes of the air outlets 111 and/or air inlets 112 may be the same as each other, or there may be at least one air outlet 111 with a shape different from the shapes of the other air outlets 111, and/or one air inlet 112 with a shape different from the shapes of the other air inlets 112.

Referring to fig. 3 and 4, fig. 4 isbase:Sub>A partial cross-sectional view of the camera module 100 shown in fig. 3 taken alongbase:Sub>A-base:Sub>A. Illustratively, a flow passage 113 is formed between the lens assembly 21 and the housing 1, and the flow passage 113 communicates with the air outlet 111 and the air inlet 112.

In this application, the outside air is discharged from the air outlet 111 after entering the circulation path 113 through the air inlet 112, and acts on the light inlet surface of the lens assembly 21 to remove impurities such as water or dust on the light inlet surface, thereby improving the shooting quality of the camera module 100.

Illustratively, the housing 1 may further include a sidewall 13. The side wall 13 may be located at a side of the housing 1 and fixedly connected with the surrounding portion 110. The sidewall 13 of the housing 1 may be spaced from the lens assembly 21 and form a cavity or channels with the lens assembly 21. The cavity or channels may serve as the flow path 113.

Illustratively, each intake vent 112 may communicate with at least one exhaust vent 111. For example, each air inlet 112 may be connected to one or more air outlets 111 through a channel, and at this time, one end of the channel is connected to the air inlet 112, and the other end is connected to the air outlets 111; each air inlet 112 may also be connected to a plurality of air outlets 111 through a plurality of channels, and at this time, one end of each of the plurality of channels may be connected to the same air inlet 112, and the other end may be connected to different air outlets 111.

Illustratively, the camera module 100 may further include a mounting member 14 for mounting the lens assembly 21. The mounting member 14 may be located between the housing 1 and the lens assembly 21 and fixedly connected to the housing 1. The mounting member 14 is provided at a distance from the casing 1, and forms a cavity or a plurality of channels with the casing 1 as a flow passage 113.

Illustratively, the camera module 100 may further include a wind guide structure 4. The air guiding structure 4 may be disposed on the flow passage 113 or the air inlet 112, and the air guiding structure 4 may be configured to guide the external air flow into the flow passage 113 and form an air flow at the air outlet 111. Active exhaust is realized through wind-guiding structure 4 to this application, can adapt to more application environment.

For example, referring to fig. 1, fig. 2 and fig. 4, the air guiding structure 4 may include a fan and a fan housing 3. An accommodation space is formed between the fan housing 3 and the side of the housing 1, and the fan can be accommodated in the accommodation space 30. The fan may be fixed to an outer sidewall of the case 1. In the present application, "fixed" may mean that two elements are directly fixedly connected, or that one of the elements is fixed to the other element through an intermediary. For example, the fan may be fixed to the inner wall of the accommodating space 30, that is, the fan is fixed to the outer side wall of the housing 1 by being fixed to the fan housing 3.

Illustratively, the fan may be electrically connected to the circuit board. The circuit board can be used for providing a driving power supply for the fan and adjusting the magnitude of the driving current according to the application environment, so that the rotating speed of the fan is controlled. In addition, realize active exhaust through the fan in this application, also gaseous mobile state can be decided by the user, consequently, the module 100 of making a video recording that this application provided can adapt to more application environment.

Illustratively, the fan housing 3 may include an upper fan housing 31 and a lower fan housing 32. The upper fan case 31 and the lower fan case 32 may be assembled together by a coupling. The fan housing 3 may also be an integrally formed structure to improve structural integrity, which is not limited in this application.

Illustratively, the housing 1 and the fan housing 3 have a protection function, and may be made of metal or plastic.

Illustratively, the fan may be disposed proximate the intake vent 112. The fan can accelerate the circulation speed of the outside air, so that more air enters from the air inlet 112, and the effect of quickly removing water and dust is achieved. For example, the wind power of the fan can be adjusted according to the application scene. For example, when the rainfall is large or the wind and sand are large, the camera module 100 can provide a larger driving current for the fan to increase the air flow rate and improve the rain-proof and sand-proof effects. When the rainfall is small or on a sunny day, the camera module 100 can provide a small driving current for the fan, so as to reduce energy consumption.

For example, the fan housing 3 may include a fan inlet 33. The accommodating space 30 may communicate with the intake vent 112 and communicate with the outside through the fan intake vent 33, so that the fan can suck outside air into the accommodating space 30 from the fan intake vent 33 and accelerate the sucked air. The accelerated air enters through the air inlet 112 and is discharged from the air outlet 111 along the circulation path 113, and acts on the lens assembly 21 to achieve the effects of rain prevention, dust removal and water removal.

For example, the number of fans and air intakes 112 may be multiple, and one fan may correspond to one or more air intakes 112. The outer side of each fan is provided with a fan shell 3 to play a role in protecting the fan.

Illustratively, the housing 1 may include a partition 15. A bulkhead 15 may be located between inner housing 14 and side wall 13 and connect inner housing 14 and side wall 13, respectively. The partition 15 may divide the flow passage 113 into a plurality of flow channels. Each air outlet 111 may correspond to one or more flow channels.

In the present application, dividing the flow path 113 into a plurality of flow paths can reduce the flow path of the gas, thereby increasing the pressure of the gas, so as to more rapidly remove impurities such as water or dust, and improve the rainproof performance.

Illustratively, the surrounding portion 110 of the housing 1 may be composed of a top surface of the inner housing 14, a top surface of the partition 15, and a top surface of the side wall 13. In other embodiments, the housing 1 may also include a top plate (not shown). The top plate may fixedly connect the top surface of the inner housing 14 and the top surface of the side wall 13. The top plate may be provided with a plurality of air outlets 111, and the air outlets 111 are spaced by a partition plate to divide the air in the flow passage 113 into a plurality of air streams, so as to increase the flow rate of the air. In this application, flow rate may refer to the volume or mass of fluid flowing through an effective cross-section of a closed conduit per unit time. In this embodiment, the housing 1 may not include the partition 15 to reduce the number of structural members, thereby reducing the cost.

Referring to fig. 5 and fig. 6 together, fig. 5 is a partial cross-sectional view of the structure shown in fig. 4, and fig. 6 is a schematic flow pattern of the airflow outside the air outlet 111 shown in fig. 3. The spiral vortex formed outside of the lens assembly 21 is illustrated in figure 6 by the dashed lines and arrows. It is to be understood that the arrows illustrate only one of the flow patterns of the helical vortex, that other flow patterns may exist, and that the arrows are not to be construed as limiting the flow pattern of the helical vortex.

Exemplarily, the surrounding portion 110 of the housing 1 is recessed toward the image side of the lens assembly 21, and an area of a cross section surrounded by an inner contour line obtained by cutting the surrounding portion 110 perpendicular to the optical axis 10 increases along the object side direction of the optical axis 10, so that the air outlet 111 is inclined toward a direction close to the lens assembly 21, which not only increases an air outlet range of the air outlet 111, but also enables an air flow to blow toward the lens assembly 21, and to spiral in a circular truncated cone-shaped space surrounded by the surrounding portion 110 to form a spiral vortex (as shown by a dotted line in fig. 6), thereby forming an air barrier outside the lens assembly 21, so that rainwater or sand and the like are blown away by air before contacting the lens assembly 21, thereby achieving a rain-proof and sand-proof effect, and improving a shooting quality of the camera module 100 in severe environments such as rainy days and sand storms. In addition, the spiral vortex generated by the inclined air outlet 111 can effectively and quickly remove water drops and dust attached to the lens assembly 21, thereby improving the shooting quality.

In addition, this application compares in current scheme and need not externally install windshield wiper, drive plate structure, so can save whole space and reduce part and complicated processing and then save the cost.

For example, the outlet 111 may be square as shown in fig. 5, or may also be round or have other shapes, which is not limited in this application.

Referring to fig. 7 and 8 together, fig. 7 is a partial structural schematic view of the housing 1 shown in fig. 4 in some other embodiments, and fig. 8 is a partial structural schematic view of the camera module 100 shown in fig. 3 in some other embodiments, wherein the camera module 100 shown in fig. 8 adopts the housing 1 shown in fig. 7. In addition, the spiral vortex formed outside of lens assembly 21 is illustrated by the dashed lines and arrows in FIG. 8.

For example, the air outlet 111 may include an opening in the surrounding portion 110 and an air guiding slope 16 connected to the flow passage 113. The air guiding inclined surface 16 of each air outlet 111 is inclined at the same acute angle with the optical axis 10 in the same direction, so that the airflow formed by each air outlet 111 rotates clockwise or counterclockwise to form a cyclone. For example, one air outlet 111 may correspond to one air guiding slope 16. In other embodiments, one air outlet 111 may also be correspondingly connected to a plurality of air guiding slopes 16 arranged at intervals.

For example, the plurality of wind-guiding slopes 16 may extend in a direction around lens assembly 21 and/or in a direction toward lens assembly 21. The plurality of air guide slopes 16 extend in the same direction.

In this application, the wind guide slope 16 can guide the airflow to flow along the extending direction of the channel, so that the airflow discharged from the air outlet 111 can flow along the direction surrounding the lens assembly 21, forming a spiral vortex. Further, the air guide slope 16 may be configured to allow the air discharged from the air outlet 111 to flow in a direction toward the lens assembly 21, so that more air flows toward the lens assembly 21, thereby improving the ability of removing impurities such as water and dust.

For example, the air guiding inclined plane 16 may be provided with a screw thread (not shown) near the air outlet 111.

For example, the inner wall of the flow path 113 may be threaded (not shown).

In the present application, the threads of the inner walls of the air guide slope 16 and the flow passage 113 enable the air to form a spiral vortex in the flow passage 113 or when the air is close to the air outlet 111, so as to increase the flow rate when the air is discharged from the air outlet 111, and further improve the removal capability of impurities such as water and dust.

Referring to fig. 4 and 9, fig. 9 is a schematic structural diagram of the fan shown in fig. 4 in other embodiments. Illustratively, the fan may be a small dc fan. The dc fan may be of the type shown in fig. 9 for shaft suction cross discharge or fig. 4 for shaft suction shaft discharge.

Illustratively, the exhaust outlet 41 of the axial-suction lateral-exhaust fan shown in fig. 9 is smaller, so that the exhausted air has more directionality. In this embodiment, the air outlet 41 can be aligned with the air inlet 112, so that the air flow entering the air inlet 112 is larger, thereby improving the efficiency of water removal and dust removal and the ability of rain and sand prevention.

For example, the driving motor of the fan may be a brush motor or a brushless motor.

For example, referring to fig. 5, the camera module 100 may further include a waterproof air-permeable film 1132 and/or a foreign object protection net 1131. The foreign matter prevention net 1131 may cover the intake opening 112 and/or the outtake opening 111. The waterproof breathable film 1132 may be disposed inside the air outlet 111, and the periphery of the waterproof breathable film 1132 may be attached to the inner wall of the flow path 113, and the inner side wall of the inner housing 14 and the inner side wall of the side wall 13 are disposed opposite to each other. In other embodiments, the perimeter of the waterproof, breathable membrane 1132 may also conform to the inner walls of the flow path 113. For example, when the surrounding portion 110 of the housing 1 is provided with a top plate, the waterproof breathable film 1132 may be attached to an inner wall of the top plate facing away from the surrounding portion 110.

For example, the foreign-object-preventing protection net 1131 may be provided in plural and spaced apart, and/or the water-proof air-permeable membrane 1132 may be provided in plural and spaced apart.

For example, the foreign object prevention protection net 1131 may be used to prevent foreign objects from entering the flow path 113, and prevent the foreign objects from blocking the flow path 113, so that the air flow is not smooth, and the water removal, dust removal, and rain prevention effects are affected; the internal structure of the shell 1 can be protected, the damage caused by water, foreign matters and dust can be avoided, and the long-term working performance of the shell can be kept excellent. The foreign-object-preventing protection net 1131 can also prevent external foreign objects from penetrating the waterproof breathable film 1132.

For example, the waterproof breathable membrane 1132 may be used to prevent water vapor from entering the flow path 113, where a large amount of water vapor may condense into water droplets, blocking the flow path 113.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a module of making a video recording which characterized in that includes:

a lens assembly;

the lens assembly is arranged on the shell, the object side surface of the lens assembly is close to the opening and is used for receiving light rays emitted from the opening, and the shell comprises a surrounding part which is positioned on the top of the shell and surrounds the opening;

the air outlet is arranged on the surrounding part, and the air inlet is arranged on the outer side surface of the shell;

a flow passage is arranged between the lens assembly and the shell and is communicated with the air outlet and the air inlet;

the air guide structure is arranged on the circulation passage or the air inlet and is used for guiding external air flow into the circulation passage and forming air flow at the air outlet;

the camera shooting module comprises a lens assembly, a shell and a shooting module, wherein the shell comprises a side wall, the side wall is positioned on the side part of the shell and is fixedly connected with the surrounding part, the shooting module comprises a mounting piece, the mounting piece is used for mounting the lens assembly, the mounting piece and the shell are arranged at intervals, and a cavity or a plurality of cavities are formed between the mounting piece and the shell and are used as the circulation passage;

the shell comprises a partition plate, the partition plate is positioned between the side wall and the mounting piece and is respectively connected with the side wall and the mounting piece, and the partition plate divides the circulation passage into a plurality of flow passages;

the air outlet is including being located the trompil of surrounding part and connecting the wind-guiding inclined plane of circulation route, every the air outlet the wind-guiding inclined plane all is the same acute angle slope setting along the equidirectional with the optical axis so that every the air current that the air outlet formed all follows clockwise rotation or all follows anticlockwise rotation and then forms the cyclone.

2. The camera module of claim 1, wherein the surrounding portion is recessed toward an image side of the lens element, and an area of a cross section surrounded by an inner contour obtained by cutting the surrounding portion on a plane perpendicular to an optical axis increases along an object side of the optical axis, so that the air outlet is inclined toward a direction close to the lens element.

3. The camera module of claim 1, wherein the plurality of air outlets are spaced apart from one another;

and/or the air inlets are multiple, and each air inlet is at least communicated with one air outlet.

4. The camera module of claim 1, wherein the air guide structure comprises a fan, and the fan is disposed near the air inlet and is fixedly connected to an outer sidewall of the camera module; and after entering the circulation passage through the air inlet, the outside air is discharged from the air outlet and acts on the lens assembly.

5. The camera module according to claim 4, wherein the air guide structure further includes a fan housing, the fan housing is fixed to an outer side wall of the housing, and forms a receiving space with the outer side wall of the housing, the fan is received in the receiving space and fixed to an inner wall of the receiving space, the fan housing includes an air inlet, and the receiving space is communicated with the air inlet and with the outside through the air inlet.

6. The camera module according to claim 1, further comprising a waterproof, breathable film and/or a foreign-object-proof protective net covering the air inlet and/or the air outlet;

the waterproof breathable film is arranged on the inner side of the air outlet, and the periphery of the waterproof breathable film is attached to the inner wall of the circulation passage;

and/or the waterproof breathable film is multiple and arranged at intervals.

7. The camera module of any one of claims 1-6, further comprising a circuit board secured to the bottom wall of the camera module, an image sensor connected to the circuit board, and a connector connected to the circuit board and extending through the bottom wall of the camera module.

8. An electronic device, characterized in that it comprises a camera module according to any one of claims 1-7.