Anti-static camera module and assembling method

Abstract

The invention relates to the technical field of optical lenses, in particular to an anti-static camera module and an assembly method. The anti-static camera module comprises a shell, a camera, a circuit board assembly and a contact piece. Wherein an accommodating cavity is formed in the shell; at least part of the camera penetrates through the shell and is contained in the containing cavity, and the camera is connected with the shell in an adhesive mode. The circuit board assembly is arranged in the accommodating chamber, and an optical sensor is arranged on the circuit board assembly. The contact element is arranged in the accommodating chamber, one end of the contact element is connected with the shell, and the other end of the contact element is lapped on the outer wall of the camera; therefore, the electrostatic charges can pass through the camera and the contact piece in sequence and are conducted to the outside through the shell. Therefore, the electrostatic charges are prevented from being accumulated on the camera and conducted to the optical sensor to damage the optical sensor, the electrostatic protection capability of the anti-static camera module is improved, and the electrostatic shielding effect is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of optical lenses, and in particular to an anti-static camera module and an assembly method thereof. Background Art

[0002] With the increasing demand for visual perception accuracy in autonomous driving systems, the reliability of in-vehicle cameras has become a key factor restricting technological development. The current mainstream HD camera module design typically utilizes a metal lens barrel and metal housing, bonded together using AA (Active Alignment) glue for optical alignment.

[0003] While this metal-glue composite structure meets basic assembly requirements, it creates a discontinuous insulating interface between the lens barrel and the housing. Furthermore, due to the unavoidable assembly gaps between metal components, static electricity from the external environment can penetrate the module along the metal conduction path and directly reach the imaging chip, potentially causing electrostatic breakdown in the semiconductor device and irreversible imaging failure.

[0004] Therefore, it is urgent to design an anti-static camera module and an assembly method to solve the above technical problems. Summary of the Invention

[0005] The first purpose of the present invention is to provide an anti-static camera module to improve the electrostatic protection capability and enhance the electrostatic shielding effect.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] The present invention provides an anti-static camera module, comprising:

[0008] a housing, wherein the housing has a housing chamber;

[0009] a camera, at least a portion of which passes through the housing and is accommodated in the accommodating chamber, and the camera is adhesively connected to the housing;

[0010] a circuit board assembly, the circuit board assembly being disposed in the accommodating chamber and having an optical sensor disposed on the circuit board assembly;

[0011] A contact member is arranged in the accommodating chamber, and one end of the contact member is connected to the shell, and the other end of the contact member is overlapped with the outer wall of the camera; so that electrostatic charge can pass through the camera and the contact member in sequence and be conducted to the outside by the shell.

[0012] As an optional technical solution for an anti-static camera module, a fixing position is provided on the bottom wall of the accommodating chamber, and the anti-static camera module further includes a screwing member, which screws one end of the contact member along a first direction and fixes it in the fixing position.

[0013] As an optional technical solution for an anti-static camera module, the contact piece has a main body and a first end and a second end arranged at both ends of the main body. The main body is wound around the screw part, the first end and the main body form a force relief port, and the second end is overlapped with the outer wall of the camera.

[0014] As an optional technical solution for an anti-static camera module, a limiting column is further provided on the bottom wall of the accommodating chamber, the limiting column abuts against the main body, and the limiting column is configured to prevent the main body from rotating in a second direction opposite to the first direction.

[0015] As an optional technical solution for an anti-static camera module, the circuit board assembly includes a first circuit board, which has an assembly hole. The assembly hole is arranged opposite the screw part, and the assembly hole is configured to allow an installation tool to extend into and screw the screw part.

[0016] As an optional technical solution for an anti-static camera module, the shell includes a first shell and a second shell. The anti-static camera module also includes a first fixing part and a sealing ring. The sealing ring is arranged between the first shell and the second shell. The first fixing part passes through the first shell and the second shell and makes the first shell and the second shell squeeze the sealing ring.

[0017] As an optional technical solution for an anti-static camera module, the circuit board assembly also includes a second circuit board, which is stacked with the first circuit board, and the second circuit board is located above the first circuit board and at a preset distance from the first circuit board.

[0018] As an optional technical solution for an anti-static camera module, the circuit board assembly further includes a second fixing member and a third fixing member; the second housing is provided with a protruding connecting column, and the first circuit board is provided with an avoidance position;

[0019] The second fixing member is provided through the first circuit board and is connected to the second housing. The third fixing member is provided through the second circuit board and passes through the avoidance position and is connected to the connecting column.

[0020] As an optional technical solution for an anti-static camera module, the anti-static camera module also includes a glue layer, a boss is protruding from the outer wall of the camera, one side of the glue layer is connected to the boss, and the other side of the glue layer is connected to the shell.

[0021] As an optional technical solution for an anti-static camera module, the anti-static camera module also includes a radio frequency connector and a fourth fixing member, wherein the fourth fixing member is passed through the radio frequency connector and connected to the shell; and one end of the radio frequency connector is inserted into the accommodating chamber and is connected to the circuit board assembly signal.

[0022] The second purpose of the present invention is to provide an assembly method for an anti-static camera module, which has simple and reliable assembly steps, improves the electrostatic protection capability, and enhances the electrostatic shielding effect.

[0023] To achieve this object, the present invention adopts the following technical solutions:

[0024] The present invention provides an anti-static camera module and an assembly method of an anti-static camera module. The assembly method of the anti-static camera module is used to assemble the anti-static camera module described in any of the above optional technical solutions; the assembly method of the anti-static camera module comprises the following steps:

[0025] Installing a contact member on the inner wall of the accommodating chamber of the housing so that the contact member is in a first installation position avoiding the through hole of the housing;

[0026] Assembling the circuit board assembly in the accommodating chamber of the housing;

[0027] Insert one end of the camera through the through hole of the housing and into the accommodating chamber, so that the end of the camera is higher than the height of the contact piece; and bond the camera to the housing;

[0028] The contact is screwed through the circuit board assembly to the second mounting position so that the other end of the contact is overlapped on the outer wall of the camera, forming an electrostatic charge conduction path of "camera-contact-housing".

[0029] As an optional technical solution for assembling an anti-static camera module, the step of installing a contact member on the inner wall of the accommodating chamber of the housing includes:

[0030] The body of the contact piece is wound around the screw piece, and one end of the contact piece is fixed to a fixed position on the bottom wall of the accommodating chamber by the screw piece, so that the first end of the contact piece and the body form a force relief port;

[0031] The limiting column on the bottom wall of the accommodating chamber is used to abut against the body of the contact piece to limit the contact piece from rotating in the counterclockwise direction.

[0032] As an optional technical solution for an assembly method of an anti-static camera module, the step of assembling the circuit board assembly in the accommodating chamber includes:

[0033] Fix the first circuit board to the second housing through the second fixing member so that the assembly hole of the first circuit board faces the screw member;

[0034] The second circuit board is stacked on the first circuit board, and is connected to the connecting column of the second shell through the third fixing member passing through the avoidance position of the first circuit board, so that a preset distance is formed between the second circuit board and the first circuit board.

[0035] As an optional technical solution for assembling an anti-static camera module, the step of screwing the contact member through the circuit board assembly to the second mounting position includes:

[0036] Use an electric screwdriver or torque tool to pass through the assembly hole of the first circuit board and screw the screw in a clockwise direction to rotate the contact piece around the screw and compress the relief port until the second end of the contact piece tightly abuts against the outer wall of the camera.

[0037] As an optional technical solution for an assembly method of an anti-static camera module, the assembly method of the anti-static camera module further includes:

[0038] The first housing and the second housing are buckled together, and the sealing ring between the two is squeezed by the first fixing member to achieve a sealed assembly of the housings;

[0039] The RF connector is fixed to the first shell through the fourth fixing member, so that one end of the RF connector is connected to the circuit board assembly signal and the other end is connected to the vehicle wiring harness.

[0040] The beneficial effects of the present invention include at least:

[0041] The present invention provides an anti-static camera module, which includes a housing, a camera, a circuit board assembly, and a contact. The housing has a housing chamber. At least a portion of the camera passes through the housing and is accommodated in the housing chamber, and the camera is adhesively connected to the housing. The circuit board assembly is disposed in the housing chamber, and an optical sensor is disposed on the circuit board assembly. The contact is disposed in the housing chamber, and one end of the contact is connected to the housing, while the other end of the contact overlaps the outer wall of the camera, so that electrostatic charge can pass through the camera and the contact in sequence and be conducted to the outside by the housing.

[0042] As described above, by arranging a contact piece inside the shell, and one end of the contact piece is connected to the shell, and the other end of the contact piece is overlapped with the outer wall of the camera, an electrostatic charge conduction path is formed. When the camera is interfered with by static electricity in the external environment, the electrostatic charge can be conducted from the camera to the contact piece, and then from the contact piece to the shell, and finally from the shell to the external environment. This avoids the accumulation of electrostatic charge on the camera and conduction to the optical sensor to damage the optical sensor, improves the protection of the optical sensor, enhances the electrostatic protection ability of the anti-static camera module, enhances the static electricity shielding effect, and improves reliability and safety. The structural design of the anti-static camera module in the present invention breaks through the problem of electrostatic charge accumulation caused by the traditional AA glue insulation layer, and significantly improves the reliability and safety of the camera.

[0043] The present invention also provides an assembly method for an anti-static camera module, which has simple and reliable assembly steps, improves the electrostatic protection capability of the anti-static camera module, and enhances the electrostatic shielding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without any creative work.

[0045] Figure 1 1 is a schematic structural diagram of an anti-static camera module provided in Embodiment 1 of the present invention;

[0046] Figure 2 This is an exploded view of the anti-static camera module provided in the first embodiment of the present invention;

[0047] Figure 3 is a cross-sectional view of an anti-static camera module provided in Embodiment 1 of the present invention;

[0048] Figure 4 This is a schematic structural diagram of the second housing provided by the first embodiment of the present invention, in which the contact piece is not tightened;

[0049] Figure 5 is a schematic structural diagram of the second housing provided by the first embodiment of the present invention after the contact piece is tightened;

[0050] Figure 6 is an exploded view of the second housing and circuit board assembly provided in the first embodiment of the present invention;

[0051] Figure 7 It is a flow chart of the assembly method of the anti-static camera module provided in the second embodiment of the present invention.

[0052] Reference numerals

[0053] 10. Housing; 11. First housing; 12. Second housing; 13. Limiting column; 14. First fixing member; 15. Sealing ring; 16. Connecting column;

[0054] 20. Camera; 21. Boss;

[0055] 30. Circuit board assembly; 31. First circuit board; 311. Assembly hole; 312. Avoidance position; 32. Second circuit board; 33. Second fixing member; 34. Third fixing member;

[0056] 40. Contact member; 41. First end portion; 42. Body; 43. Second end portion; 44. Force relief port;

[0057] 50. Screw-on member; 60. Adhesive layer; 70. RF connector; 71. Fourth fixing member. DETAILED DESCRIPTION

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0059] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0060] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0061] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0062] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0063] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0064] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0065] Example 1

[0066] This embodiment provides an anti-static camera module to improve electrostatic protection capabilities and enhance static electricity shielding effects.

[0067] like Figures 1-6As shown, the anti-static camera module mainly includes a shell 10, a camera 20, a circuit board assembly 30 and a contact 40. Among them, the shell 10 has a accommodating chamber. At least part of the camera 20 passes through the shell 10 and is accommodated in the accommodating chamber, and the camera 20 is adhesively connected to the shell 10. The circuit board assembly 30 is arranged in the accommodating chamber, and an optical sensor is provided on the circuit board assembly 30. The contact 40 is arranged in the accommodating chamber, and one end of the contact 40 is connected to the shell 10, and the other end of the contact 40 is overlapped on the outer wall of the camera 20; so that the electrostatic charge can pass through the camera 20 and the contact 40 in sequence and be conducted to the outside by the shell 10.

[0068] Based on the above design, this embodiment forms an electrostatic charge conduction path by disposing a contact member 40 inside the housing 10, with one end of the contact member 40 connected to the housing 10 and the other end of the contact member 40 overlapping the outer wall of the camera 20. Figure 3 The black bold arrow in the figure is the electrostatic charge conduction path. When the camera 20 is interfered by static electricity in the external environment, the electrostatic charge can be conducted from the camera 20 to the contact 40, and from the contact 40 to the housing 10, and finally conducted from the housing 10 to the external environment (for example, to the ground terminal of the device, etc.). This avoids the accumulation of electrostatic charge on the camera 20 and conduction to the optical sensor to damage the optical sensor, improves the protection of the optical sensor, enhances the electrostatic protection capability of the anti-static camera module, enhances the static electricity shielding effect, and improves reliability and safety. The structural design of the anti-static camera module in this embodiment breaks through the problem of electrostatic charge accumulation caused by the traditional AA glue insulation layer, and significantly improves the reliability and safety of the camera 20.

[0069] It can be understood that the housing 10 , the outer wall of the camera 20 and the contact member 40 in this embodiment are all made of metal, which facilitates the conduction of static electricity.

[0070] In some optional embodiments, the anti-static camera module can be installed on a car and used as a car camera module. Exemplarily, it can be installed in the front windshield (i.e., driving recorder), the rear of the car (i.e., reversing camera), the grille or the rearview mirror housing (ADAS), the rearview mirror below (DMS) and other positions. And the car camera used is a driving recorder camera, a reversing camera, a 360 ° surround camera, an ADAS camera (advanced driver assistance system), an in-car camera (DMS driver monitoring) and other monitoring, recording or auxiliary driving camera devices. Road conditions, pedestrian recognition, gesture control can be analyzed in real time, and information is provided to the driver or the driver's status is monitored in real time to provide protection for safe driving of the car.

[0071] like Figure 4-Figure 5As shown, in this embodiment, a fixing position is provided on the bottom wall of the accommodating chamber, and the anti-static camera module further comprises a screwing member 50, which screws one end of the contact member 40 along a first direction and fixes it in the fixing position. The first direction is Figure 5 For example, the screwing member 50 can be configured as a conventional component such as a fastening screw or a fastening screw.

[0072] Specifically, the contact member 40 includes a body 42 and a first end 41 and a second end 43 disposed at either end of the body 42. The body 42 is wound around the screw member 50, with the first end 41 and the body 42 forming a relief opening 44. The second end 43 overlaps the outer wall of the camera 20. This bending of the first end 41 to form the relief opening 44 with the body 42 allows assembly stress to be released during rotation of the screw member 50, preventing plastic deformation of the contact member 40. Furthermore, if the screw member 50 is not tightened, but the second end 43 of the contact member 40 has already overlapped the outer wall of the camera 20, and the operator continues to rotate and tighten the screw member 50, the relief opening 44 prevents deformation and displacement of the contact member 40. It is understood that the size of the relief opening 44 gradually decreases during this period.

[0073] Furthermore, in this embodiment, a limit post 13 is provided on the bottom wall of the accommodating chamber. The limit post 13 abuts the body 42 and is configured to prevent the body 42 from rotating in a second direction (counterclockwise direction X2) opposite to the first direction (clockwise direction). In other words, the provision of the limit post 13 prevents the contact member 40 from rotating in the opposite direction, thereby loosening the connection and preventing the contact member 40 from losing contact with the outer wall of the camera 20.

[0074] like Figure 6 As shown, the circuit board assembly 30 in this embodiment includes a first circuit board 31. The first circuit board 31 has an assembly hole 311 formed therein. The assembly hole 311 is positioned directly opposite the screw member 50 and is configured to allow an installation tool to penetrate and screw the screw member 50. The provision of the assembly hole 311 facilitates vertical insertion of the installation tool into the screw member 50, thereby resolving the assembly problem in a confined space.

[0075] For example, the installation tool may be provided as an electric screwdriver, a screwdriver, or the like.

[0076] like Figure 1-Figure 2As shown, the housing 10 in this embodiment includes a first housing 11 and a second housing 12. The anti-static camera module also includes a first fixing member 14 and a sealing ring 15. The sealing ring 15 is disposed between the first housing 11 and the second housing 12. The first fixing member 14 penetrates the first housing 11 and the second housing 12 and squeezes the sealing ring 15. The housing 10 is designed to be split into a first housing 11 and a second housing 12 that are detachably connected to each other, which facilitates the subsequent inspection and maintenance of the anti-static camera module. The sealing ring 15 is disposed between the first housing 11 and the second housing 12 to enhance the waterproof sealing performance of the housing 10.

[0077] like Figure 6 As shown, the circuit board assembly 30 also includes a second circuit board 32, which is stacked with the first circuit board 31. The second circuit board 32 is located above the first circuit board 31 and at a predetermined distance from the first circuit board 31. In other words, the three-dimensional stacking design of the first circuit board 31 and the second circuit board 32 not only improves the integration of the circuit board assembly 30 and reduces its volume, miniaturizing the anti-static camera module structure and reducing costs; it also provides a predetermined distance between the first circuit board 31 and the second circuit board 32, which improves the heat dissipation efficiency of the electronic components on the first circuit board 31 and the second circuit board 32, thereby enhancing safety.

[0078] Furthermore, the circuit board assembly 30 in this embodiment also includes a second fixing member 33 and a third fixing member 34. The second housing 12 is provided with a protruding connecting post 16, and the first circuit board 31 is provided with a relief portion 312. The second fixing member 33 is disposed through the first circuit board 31 and connected to the second housing 12. The third fixing member 34 is disposed through the second circuit board 32 and passes through the relief portion 312 to connect to the connecting post 16. For example, the first circuit board 31 can be directly fixed to the second housing 12 using short bolts, while the second circuit board 32 can be fastened to the connecting post 16 using long bolts that penetrate the relief portion 312 of the first circuit board 31.

[0079] For example, the first fixing member 14 , the second fixing member 33 and the third fixing member 34 in this embodiment can all be configured as bolts, screws, etc.

[0080] The contact member 40 in this embodiment is detachably disposed on the inner wall of the second housing 12 via a screw member 50 .

[0081] like Figure 1-Figure 3 As shown, the anti-static camera module further includes an adhesive layer 60. A boss 21 is provided on the outer wall of the camera 20. One side of the adhesive layer 60 is connected to the boss 21, and the other side of the adhesive layer 60 is connected to the housing 10. The provision of the adhesive layer 60 can improve the stability and reliability of the connection between the camera 20 and the housing 10 and reduce the shaking of the camera 20.

[0082] In some optional embodiments, the glue layer 60 may be configured as AA glue.

[0083] In some optional embodiments, the adhesive layer 60 may be configured as a conductive adhesive to form an auxiliary conductive path for the electrostatic charge, thereby improving the conduction efficiency of the electrostatic charge.

[0084] like Figure 1-Figure 3 As shown, the anti-static camera module also includes an RF connector 70 and a fourth fixing member 71. The fourth fixing member 71 is passed through the RF connector 70 and connected to the shell 10. One end of the RF connector 70 penetrates the accommodating chamber and is connected to the circuit board assembly 30 for signal connection.

[0085] Illustratively, the RF connector 70 is secured to the top of the first housing 11 via bolts (fourth fixing members 71), and its internal probe penetrates the first housing 11 and connects to the electronic components of the second circuit board 32. The other end of the RF connector 70 is connected to a cable in the vehicle wiring harness, thereby forming a video transmission channel, allowing the images captured by the camera 20 to be transmitted to the vehicle display screen via the RF connector 70.

[0086] Example 2

[0087] like Figure 7 As shown, this embodiment provides an assembly method of an anti-static camera module, which is used to assemble the anti-static camera module in Example 1. The assembly method of the anti-static camera module includes the following steps:

[0088] The contact member 40 is installed on the inner wall of the accommodating chamber of the housing 10 so that the contact member 40 is in a first installation position.

[0089] Specifically, the contact member 40 is installed in the second housing 12. At this time, the contact member 40 is located at a position as shown in FIG. Figure 4 As shown, that is, the position of the contact member 40 at this time avoids the through hole on the shell 10, which makes it easier for the subsequent camera 20 to pass through the through hole into the accommodating chamber in the shell 10, avoiding interference and collision between the camera 20 and the contact member 40 during the installation process.

[0090] Furthermore, this step also includes winding the body 42 of the contact member 40 onto the screw member 50 , and installing the screw member 50 and the contact member 40 together in the second housing 12 .

[0091] One end of the contact member 40 is fixed to a fixed position on the bottom wall of the accommodating chamber using a screw member 50, forming a force relief opening 44 between the first end 41 of the contact member 40 and the body 42. Simultaneously, the limiting post 13 on the bottom wall of the accommodating chamber abuts against the body 42 of the contact member 40, restricting counterclockwise rotation of the contact member 40 and preventing the contact member 40 from losing contact with the outer wall of the camera 20.

[0092] The circuit board assembly 30 is assembled in the accommodating chamber of the housing 10 .

[0093] Specifically, the first circuit board 31 in the circuit board assembly 30 is fixed to the second housing 12 via the second fixing member 33 , and the assembly hole 311 of the first circuit board 31 faces the screw member 50 in the second housing 12 .

[0094] The second circuit board 32 is stacked on the first circuit board 31 and fixed to the connecting column 16 of the second shell 12 by the third fixing member 34 passing through the avoidance position 312 of the first circuit board 31, so that the second circuit board 32 and the first circuit board 31 form a preset distance.

[0095] One end of the camera 20 is passed through the housing 10 and extended into the accommodating chamber, so that the end of the camera 20 is higher than the height of the contact member 40 ; and the camera 20 is bonded to the housing 10 .

[0096] Specifically, the boss 21 on the camera 20 is bonded to the second housing 12 with AA glue to form a stable structure to prevent the camera 20 from shaking during use. The end of the camera 20 is higher than the height of the contact 40, which makes it easier for the subsequent contact 40 to overlap the outer wall of the camera 20 to form an electrostatic charge conduction path of "camera 20-contact 40-housing 10" ( Figure 3 The bold black arrow in the figure indicates the electrostatic charge conduction path to avoid the risk of short circuit.

[0097] The contact member 40 is screwed through the circuit board assembly 30 to the second installation position so that the end of the contact member 40 overlaps the outer wall of the camera 20 .

[0098] Specifically, the operator can use an electric screwdriver or other torque tool to screw the screw 50 clockwise through the assembly hole 311 to rotate the contact 40 from the first installation position to the second installation position. At this time, the end of the contact 40 overlaps the outer wall of the camera 20, thereby forming an electrostatic charge conduction path of "camera 20-contact 40-housing 10".

[0099] By assembling the circuit board assembly 30 first and then assembling the camera 20 , it is possible to easily adjust the optical distance of the camera 20 and improve assembly efficiency.

[0100] The assembly method of the anti-static camera module also includes the following steps:

[0101] The second circuit board 32 in the circuit board assembly 30 is mounted on the connecting post 16 of the second housing 12 via the third fixing member 34. The second fixing member 33 and the third fixing member 34 are arranged diagonally to reduce local stress and avoid stress concentration. Specifically, one end of the third fixing member 34 passes through the avoidance position 312 on the first circuit board 31 and connects to the connecting post 16.

[0102] The first housing 11 and the second housing 12 are detachably connected by a first fixing member 14 so that the first housing 11 and the second housing 12 are interlocked to form a receiving chamber in which the circuit board assembly 30 is received.

[0103] The fourth fixing member 71 is used to fix the RF connector 70 on the first shell 11, and one end of the RF connector 70 is passed through the accommodating chamber and connected to the signal of the second circuit board 32, and the other end of the RF connector 70 is connected to the cable in the vehicle wiring harness to form a video transmission channel, so that the image captured by the camera 20 can be transmitted to the vehicle display screen through the RF connector 70.

[0104] This anti-static camera module assembly method features simple steps. Before attaching the camera 20, the contact member 40 is positioned in the first mounting position, avoiding the through-holes in the housing 10. After attaching the camera 20, the contact member 40 is screwed into the second mounting position, overlapping the outer wall of the camera 20 to form an electrostatic charge conduction path from the camera 20 to the contact member 40 and then to the housing 10. This enhances the anti-static camera module's electrostatic protection capabilities and shielding effectiveness.

[0105] Obviously, the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

[0106] Note that throughout this specification, references to terms such as "some embodiments" and "other embodiments" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. Throughout this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. Anti-static camera module, characterized in that, include: A housing (10), wherein the housing (10) has a receiving chamber; a camera (20), at least a portion of the camera (20) passes through the housing (10) and is accommodated in the accommodation chamber, and the camera (20) is adhesively connected to the housing (10); A circuit board assembly (30), the circuit board assembly (30) being arranged in the accommodating chamber, and an optical sensor being arranged on the circuit board assembly (30); A contact member (40) is provided in the accommodating chamber, and one end of the contact member (40) is connected to the housing (10), and the other end of the contact member (40) is overlapped with the outer wall of the camera (20); so that electrostatic charge can pass through the camera (20) and the contact member (40) in sequence and be conducted to the outside by the housing (10).

2. The anti-static camera module according to claim 1, characterized in that: A fixing position is provided on the bottom wall of the accommodating chamber, and the anti-static camera module further comprises a screwing member (50), wherein the screwing member (50) screws one end of the contact member (40) along a first direction and fixes it at the fixing position.

3. The anti-static camera module according to claim 2, characterized in that: The contact member (40) comprises a body (42) and a first end portion (41) and a second end portion (43) arranged at both ends of the body (42); the body (42) is wound around the screw member (50); the first end portion (41) and the body (42) form a force relief port (44); and the second end portion (43) overlaps the outer wall of the camera (20).

4. The anti-static camera module according to claim 3, characterized in that: A limiting column (13) is also provided on the bottom wall of the accommodating chamber, wherein the limiting column (13) abuts against the main body (42), and the limiting column (13) is configured to prevent the main body (42) from rotating in a second direction opposite to the first direction.

5. The anti-static camera module according to claim 1, characterized in that: The shell (10) includes a first shell (11) and a second shell (12), and the anti-static camera module also includes a first fixing member (14) and a sealing ring (15), wherein the sealing ring (15) is arranged between the first shell (11) and the second shell (12), and the first fixing member (14) is passed through the first shell (11) and the second shell (12) and enables the first shell (11) and the second shell (12) to squeeze the sealing ring (15).

6. The assembly method of the anti-static camera module is characterized in that: The assembly method of the anti-static camera module is used to assemble the anti-static camera module according to any one of claims 1 to 5; The assembly method of the anti-static camera module comprises the following steps: Installing a contact member (40) on the inner wall of the accommodating chamber of the housing (10) so that the contact member (40) is in a first installation position avoiding the through hole on the housing (10); Assembling the circuit board assembly (30) in the accommodating chamber of the housing (10); Pass one end of the camera (20) through the through hole of the housing (10) and extend into the accommodating chamber, so that the end of the camera (20) is higher than the height of the contact member (40); and bond the camera (20) to the housing (10); The contact member (40) is screwed to the second mounting position through the circuit board assembly (30) so that the other end of the contact member (40) overlaps the outer wall of the camera (20), forming an electrostatic charge conduction path of "camera (20) - contact member (40) - housing (10)".

7. The method for assembling an anti-static camera module according to claim 6, wherein: The step of installing the contact member (40) on the inner wall of the accommodating chamber of the housing (10) comprises: The body (42) of the contact member (40) is wound around the screw member (50), and one end of the contact member (40) is fixed to a fixed position on the bottom wall of the accommodating chamber through the screw member (50), and a force relief port (44) is formed between the first end portion (41) of the contact member (40) and the body (42); The limiting column (13) on the bottom wall of the accommodating chamber is used to abut against the body (42) of the contact member (40), thereby limiting the contact member (40) from rotating in the counterclockwise direction.

8. The method for assembling an anti-static camera module according to claim 6, wherein: The step of assembling the circuit board assembly (30) in the accommodating chamber comprises: Fixing the first circuit board (31) to the second housing (12) via the second fixing member (33) so that the assembly hole (311) of the first circuit board (31) faces the screwing member (50); The second circuit board (32) is stacked above the first circuit board (31), and is connected to the connecting column (16) of the second housing (12) via a third fixing member (34) passing through the avoidance position (312) of the first circuit board (31), so that a preset distance is formed between the second circuit board (32) and the first circuit board (31).

9. The method for assembling an anti-static camera module according to claim 6, wherein: The step of screwing the contact member (40) through the circuit board assembly (30) to the second installation position comprises: An electric screwdriver or torque tool is used to pass through the assembly hole (311) of the first circuit board (31) and screw the screw member (50) in a clockwise direction, so that the contact member (40) rotates around the screw member (50) and compresses the pressure relief port (44) until the second end (43) of the contact member (40) tightly abuts against the outer wall of the camera (20).

10. The method for assembling an anti-static camera module according to claim 6, wherein: The assembly method of the anti-static camera module also includes: The first housing (11) and the second housing (12) are buckled together, and the sealing ring (15) between the two is squeezed by the first fixing member (14) to achieve sealed assembly of the housing (10); The radio frequency connector (70) is fixed to the first housing (11) via a fourth fixing member (71), so that one end of the radio frequency connector (70) is connected to the circuit board assembly (30) for signal connection, and the other end is connected to the vehicle wiring harness.

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