Camera

Abstract

The utility model discloses a camera, and the camera comprises a housing assembly which is provided with an installation cavity and a lens installation port communicated with the installation cavity; the circuit board is mounted in the mounting cavity, and the circuit board is of a single-board structure; the lens is mounted at the lens mounting port and corresponds to the photosensitive chip on the circuit board; the connector is connected to the circuit board, and the shell assembly is provided with a connector shell for the connector to penetrate through. According to the camera provided by the invention, the circuit board arranged in the mounting cavity of the shell assembly is of a single-board structure, and compared with a camera in the prior art which needs to be provided with two circuit boards, the camera has the advantages that the weight of a product is reduced, and the size of the product is reduced. Meanwhile, the connector shell is formed on the shell assembly, so that the connector shell is not provided with a shell, compared with a connector which must be provided with a shell, the connector has lower manufacturing cost, and the connector shell is directly integrated on the shell assembly, so that the assembling steps can be reduced.

Description

Technical Field

[0001] This application relates to the field of driver assistance technology, and more specifically, to a camera. Background Technology

[0002] ADAS (Advanced Driver Assistance Systems), also known as automated driving assistance systems, is a significant achievement of modern automotive technology. ADAS systems utilize various sensors installed in the vehicle (such as millimeter-wave radar, lidar, forward-facing cameras, and satellite navigation) to perceive the surrounding environment, collect data, and identify, detect, and track static and dynamic objects, thereby enabling a variety of functions. Examples include: lane departure warning, lane keeping assist, adaptive cruise control, forward collision prevention, automatic parking, blind spot monitoring, driver fatigue warning, and adaptive headlight control.

[0003] With the popularization and improvement of intelligent driving technology, the demand for image information collection of the driving environment by vehicles is also increasing. Vehicles need to constantly acquire surrounding information to achieve the purpose of assisting driving. As the eyes of autonomous driving, the market demand for cameras continues to rise, with a single vehicle often needing to be equipped with as many as ten or even more than a dozen cameras. Currently, cameras are relatively large and heavy, occupying a significant amount of vehicle space.

[0004] Therefore, how to reduce weight and size is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this application is to provide a camera that reduces weight and size.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] The first aspect of this application provides a camera, including:

[0008] A housing assembly having a mounting cavity and a lens mounting port communicating with the mounting cavity;

[0009] A circuit board is installed inside the mounting cavity; the circuit board has a single-board structure.

[0010] The lens is mounted in the lens mounting port and corresponds to the photosensitive chip on the circuit board;

[0011] A connector is attached to the circuit board, and the housing assembly has a connector housing through which the connector passes.

[0012] In one possible implementation, the housing assembly includes a detachably connected first housing and a second housing, which, when connected, form the mounting cavity. One of the first housing and the second housing has the lens mounting port, and the other has the connector housing.

[0013] And / or,

[0014] The connector is an SMB connector.

[0015] In one possible implementation, the first housing includes a first housing body with an integral structure and the lens mounting port, the lens mounting port being located on a first side of the first housing body, and a circuit board support platform being provided inside the cavity of the first housing body, the circuit board being fixed to the circuit board support platform by circuit board fasteners.

[0016] The second housing includes a second housing body with an integral structure and the connector housing. The connector housing is located on the first side of the second housing body, and the second side of the second housing body is mated and installed with the second side of the first housing body.

[0017] In one possible implementation, both the first housing and the second housing are made of metal, and the circuit board has a copper-exposed area, which is attached to the circuit board support platform.

[0018] And / or,

[0019] There are at least two circuit board support platforms, and a circuit board device avoidance area is formed between each circuit board support platform.

[0020] In one possible implementation, the circuit board is provided with a first error-proof positioning part, and the first housing body is provided with a second error-proof positioning part that is in concave-convex cooperation with the first error-proof positioning part.

[0021] And / or,

[0022] The outer wall of the first housing body is provided with assembly positioning holes for positioning with the assembly equipment.

[0023] In one possible implementation, the first error-proof positioning part includes a first error-proof positioning hole disposed at two opposite corners of the circuit board and a second error-proof positioning hole disposed at the other two opposite corners of the circuit board.

[0024] The second error-proof positioning part includes a first error-proof positioning boss that mates with the first error-proof positioning hole and a second error-proof positioning boss that mates with the second error-proof positioning hole.

[0025] In one possible implementation, the housing assembly further includes a housing seal ring disposed between the second housing body and the first housing body.

[0026] In one possible implementation, the first housing is made of aluminum alloy, and the second housing is made of zinc alloy;

[0027] And / or,

[0028] The second housing has an exhaust port.

[0029] In one possible implementation, the connector is offset from the center of the circuit board.

[0030] In one possible implementation, the connector is fitted with an O-ring, and the second housing has a circumferential limiting sleeve that wraps around the outside of the O-ring.

[0031] The camera provided in this application features a single-board structure for the circuit board arranged within the mounting cavity of the housing assembly. This means that photosensitive imaging and image processing functions are integrated onto a single circuit board. Compared to existing cameras that require these functions to be placed on separate circuit boards, this reduces the product's weight and size. Furthermore, the connector housing is formed on the housing assembly, eliminating the need for an external shell. This results in lower manufacturing costs compared to connectors that require an external shell, and directly integrating the connector housing onto the housing assembly also reduces assembly steps. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is an exploded view of the camera disclosed in an embodiment of this application;

[0034] Figure 2 This is a schematic diagram of the circuit board disclosed in an embodiment of this application at one angle.

[0035] Figure 3 This is a schematic diagram of the circuit board disclosed in an embodiment of this application from another angle.

[0036] Figure 4 This is a schematic diagram of the structure of the first housing disclosed in an embodiment of this application;

[0037] Figure 5 This is a schematic diagram of the circuit board installed in the first housing according to an embodiment of this application;

[0038] Figure 6 This is a schematic diagram of the structure of the O-ring and circuit board installed in the first housing as disclosed in the embodiments of this application;

[0039] Figure 7 This is a schematic diagram of the structure of the second housing disclosed in an embodiment of this application;

[0040] Figure 8 This is a schematic diagram of the structure of the housing sealing ring installed in the second housing as disclosed in an embodiment of this application;

[0041] Figure 9 This is a schematic diagram of the structure of the camera disclosed in the embodiments of this application;

[0042] Figure 10 This is a cross-sectional view of the camera disclosed in an embodiment of this application.

[0043] The meanings of the various reference numerals in the figure are as follows:

[0044] 100-lens;

[0045] 200 - First housing; 210 - Lens mounting port; 220 - First housing body; 221 - Circuit board support platform; 222 - Circuit board component clearance area; 223 - Second anti-misalignment positioning boss; 224 - First anti-misalignment positioning boss; 225 - Assembly positioning hole;

[0046] 300 - Circuit board; 301 - Exposed copper area; 302 - First error-proof positioning hole; 303 - Second error-proof positioning hole;

[0047] 400 - Circuit board fasteners;

[0048] 500-Connector;

[0049] 600-O-ring seal;

[0050] 700 - Housing seal ring;

[0051] 800 - Second housing; 810 - Second housing body; 811 - Sealing ring limiting groove; 812 - Anti-misalignment groove; 813 - Circumferential limiting sleeve; 814 - Vent hole; 820 - Connector housing;

[0052] 900 - Housing fasteners. Detailed Implementation

[0053] The core of this application is to provide a camera that reduces weight and size.

[0054] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the application as described in the claims. Additionally, the complete composition represented in the embodiments below is not limited to what is necessary as the solution to the application described in the claims. It should be noted that, for ease of description, only the parts relevant to the application are shown in the drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0055] like Figure 1 , Figure 7 , Figure 9 and Figure 10 As shown, the camera disclosed in this application includes a housing assembly, a circuit board 300, a lens 100, and a connector 500. The housing assembly provides a supporting base for the circuit board 300 and the lens 100. The housing assembly has a mounting cavity and a lens mounting port 210 communicating with the mounting cavity.

[0056] The circuit board 300 is installed in the mounting cavity of the housing assembly. In this embodiment, the circuit board 300 is a single-board structure. That is, the camera disclosed in this application embodiment only has one circuit board 300, integrating the camera's light-sensing imaging function and image processing function onto one circuit board 300.

[0057] The lens 100 is mounted in the lens mounting port 210 and corresponds to the photosensitive chip on the circuit board 300, so that light can pass through the lens 100 and act on the photosensitive chip on the circuit board 300. Under the action of the photosensitive chip, the light signal is converted into an electrical signal to facilitate the processing of video images.

[0058] Connector 500 is connected to circuit board 300, and the housing assembly has a connector housing 820 through which connector 500 passes. Connector 500 can be soldered onto circuit board 300 first, so that the assembly of connector 500 within connector housing 820 is completed simultaneously when assembling circuit board 300. Connector 500 is used to connect to other external devices via wiring harness to transmit image information captured by camera to other devices.

[0059] The wire harness has a plug-in connector at its end, which is used to connect to the connector 500. When the wire harness is plugged in or removed, the connector 500 is subjected to an axial force. This axial force acts on the circuit board 300 through the connector 500, causing the circuit board 300 to deform. This deformation of the circuit board 300 affects the imaging quality of the optical components on it.

[0060] To avoid affecting the imaging of optical devices on the back of the circuit board 300 due to the force exerted on the connector 500, the thickness of the circuit board 300 can be adaptively increased, for example, the thickness can be designed to be 1.3mm or more. For example, the thickness of the circuit board 300 can be designed to be 1.6mm to ensure that the circuit board 300 has sufficient strength to resist the axial force of insertion and removal.

[0061] It should be noted that those skilled in the art can design the thickness of the circuit board 300 according to their needs, and its specific thickness is not limited to the scope disclosed in the above embodiments.

[0062] The camera disclosed in this application has a single-board structure for the circuit board 300 arranged within the mounting cavity of the housing assembly. Compared to cameras in the prior art that require two circuit boards 300, this reduces the product's weight and size. Simultaneously, a connector housing 820 is formed on the housing assembly, eliminating the need for an outer shell. This results in lower manufacturing costs compared to connectors that require an outer shell. For example, the connector 500 can be an SMB (Sub-Miniature Version B, a small push-in RF connector), which reduces costs compared to a finished FAKRA (FAKRAI SEM, a high-speed connector) connector with an outer shell. Furthermore, directly integrating the connector housing 820 onto the housing assembly also reduces assembly steps.

[0063] In one specific embodiment of this application, the housing assembly includes a detachably connected first housing 200 and a second housing 800. The first housing 200 and the second housing 800, when connected, form a mounting cavity. One of the first housing 200 and the second housing 800 has a lens mounting port 210, and the other has a connector housing 820. Specifically, the first housing 200 and the second housing 800 can be connected by housing fasteners 900. For example, a fastening hole is provided on one of the first housing 200 and the second housing 800, and a threaded hole is provided on the other. After the housing fastener 900 passes through the fastening hole, it is tightened into the threaded hole to achieve the assembly of the first housing 200 and the second housing 800.

[0064] Please combine Figures 4-6 As shown, in this embodiment, the first housing 200 includes a first housing body 220 with an integral structure and a lens mounting port 210, with the lens mounting port 210 located on the first side of the first housing body 220. The lens mounting port 210 can be designed as a cylindrical structure according to the shape of the lens 100. The central hole of the lens mounting port 210 communicates with the cavity of the first housing body 220, so that after the lens 100 is installed in the central hole of the lens mounting port 210, the light passing through the lens 100 can be guided into the cavity of the first housing body 220 and finally act on the photosensitive device of the circuit board 300.

[0065] The cavity of the first housing body 220 has a circuit board support platform 221, and the circuit board 300 is fixed to the circuit board support platform 221 by circuit board fasteners 400. In this embodiment, the circuit board support platform 221 is integrally formed in the cavity of the first housing body 220, supporting the circuit board 300 and fixing the circuit board 300 to the circuit board support platform 221 by the circuit board support platform 221. Compared with supporting all edges of the circuit board 300, this embodiment only supports part of the edges of the circuit board 300 by the circuit board support platform 221, which has a smaller contact area, makes positioning easier, and also reduces the manufacturing precision requirements of the first housing 200.

[0066] For example, at least two circuit board support platforms 221 may be provided. Taking two as an example, the two circuit board support platforms 221 may be arranged symmetrically along the axis of the lens mounting port 210. When the number of circuit board support platforms 221 exceeds two, each circuit board support platform 221 may be evenly arranged around the axis of the lens mounting port 210, or the position of each circuit board support platform 221 may be arranged according to the actual spatial interference situation, and is not limited to the specific scenario of even arrangement.

[0067] A circuit board component avoidance area 222 is formed between each circuit board support platform 221. After the circuit board 300 is installed, some components on the circuit board correspond to the lens mounting port 210, and other components correspond to the circuit board component avoidance area 222, so as to prevent the components on the circuit board 300 from interfering with the first housing 200.

[0068] like Figure 7 and Figure 8 As shown, the second housing 800 includes a second housing body 810 and a connector housing 820 with an integral structure. The connector housing 820 is located on the first side of the second housing body 810, and the second side of the second housing body 810 is mated and installed with the second side of the first housing body 220.

[0069] Specifically, the second side end face of the second housing body 810 is fitted with the second side end face of the first housing body 220 and fixed by the housing fastener 900. The cavity of the first housing body 220 and the cavity of the second housing body 810 together form the mounting cavity. It should be noted that in this embodiment, the circuit board 300 is installed in the cavity of the first housing body 220, so the cavity depth of the second housing body 810 can be designed to be small, or even no cavity may be formed.

[0070] Lens 100 can be bonded to the first housing 200 using AA adhesive. The AA adhesive needs to undergo a baking process during the camera manufacturing process to ensure complete curing. The baking process of the AA adhesive will generate heat, which will increase the pressure in the mounting cavity of the housing assembly. The increased pressure will affect the sealing effect between the first housing 200 and the second housing 800.

[0071] In this embodiment, a vent 814 is provided on the second housing 800. The heat generated during the baking process of the AA glue can escape through the vent 814 to avoid sealing problems of the camera caused by increased pressure in the mounting cavity.

[0072] In a specific embodiment of this application, both the first housing 200 and the second housing 800 are made of metal, and the circuit board 300 has a copper-exposed area 301, which is attached to the circuit board support platform 221. That is, the area where the circuit board 300 is attached to the circuit board support platform 221 is not plated, so that the copper-exposed area 301 is formed, meaning that the copper substrate in this area is exposed.

[0073] After the camera is assembled, electromagnetic interference is transmitted to the first housing 200 through the copper-exposed area 301 of the circuit board 300 and the circuit board support 221. The interference is then conducted to the second housing 800 via the housing fasteners 900, thus achieving electromagnetic interference circulation and providing electromagnetic interference shielding. Furthermore, the direct contact between the copper-exposed area 301 of the circuit board 300 and the circuit board support 221 also accelerates heat conduction and improves the heat dissipation efficiency of the circuit board 300.

[0074] The cross-sections of the first housing body 220 and the second housing body 810, as well as the outer contour of the circuit board 300, are generally rectangular. Therefore, the circuit board 300 has multiple mounting orientations within the first housing body 220. To prevent incorrect mounting orientation of the circuit board 300 during installation, in this embodiment, the circuit board 300 is provided with a first error-proof positioning part, and the first housing body 220 is provided with a second error-proof positioning part that mates with the first error-proof positioning part.

[0075] With the cooperation of the first and second error-proof positioning parts, the circuit board 300 can only be installed in the correct installation orientation. Otherwise, interference will prevent the circuit board 300 from being installed inside the first housing body 220. During circuit board 300 installation, the first and second error-proof positioning parts can be aligned according to their positional relationship before installation, ensuring the correct installation orientation of the circuit board 300.

[0076] For example, such as Figure 2 and Figure 3As shown, the first error-proofing positioning part may include first error-proofing positioning holes 302 disposed at two opposite corners of the circuit board 300 and second error-proofing positioning holes 303 disposed at the other two opposite corners of the circuit board 300. It should be noted that the first error-proofing positioning part may include only one of the first error-proofing positioning holes 302 and the second error-proofing positioning holes 303. When both the first error-proofing positioning holes 302 and the second error-proofing positioning holes 303 are provided, the first error-proofing positioning holes 302 and the second error-proofing positioning holes 303 may be designed with different sizes so that the first error-proofing positioning holes 302 and the second error-proofing positioning holes 303 can be distinguished.

[0077] like Figure 4 As shown, the second error-proof positioning part includes a first error-proof positioning boss 224 that mates with the first error-proof positioning hole 302 and a second error-proof positioning boss 223 that mates with the second error-proof positioning hole 303. That is, the first error-proof positioning boss 224 and the second error-proof positioning boss 223 are arranged along a direction parallel to the axis of the lens mounting opening 210. When installing the circuit board 300, first align the first error-proof positioning hole 302 with the first error-proof positioning boss 224, and align the second error-proof positioning hole 303 with the second error-proof positioning boss 223. Then, move the circuit board 300 towards the circuit board support platform 221 along the axis of the lens mounting opening 210 until the circuit board 300 is attached to the circuit board support platform 221, and then secure it using the circuit board fastener 400.

[0078] like Figure 6 As shown in a specific embodiment of this application, the outer wall of the first housing body 220 is provided with an assembly positioning hole 225 for positioning with the assembly equipment. During camera assembly, it can be positioned with the assembly equipment through the assembly positioning hole 225 on the first housing body 220, thereby determining the orientation of the first housing body 220 at the assembly station. This avoids the problem of production line operators manually identifying the installation orientation of the first housing 200 during camera assembly and the AA glue process, thus preventing the impact on assembly efficiency.

[0079] To ensure the airtightness of the housing assembly, in this embodiment, the housing assembly may further include a housing sealing ring 700, which is disposed between the second housing body 810 and the first housing body 220. After the second housing body 810 and the first housing body 220 are fastened by the housing fastener 900, the housing sealing ring 700 is pressed between the second housing body 810 and the first housing body 220, thereby achieving a seal at the mating point of the second housing body 810 and the first housing body 220.

[0080] For example, to prevent the housing sealing ring 700 from moving and causing sealing failure when it is compressed and deformed, in this embodiment, a sealing ring limiting groove 811 can be provided on the second housing body 810. The housing sealing ring 700 is embedded in the sealing ring limiting groove 811 to prevent the housing sealing ring 700 from moving under the action of the clamping force.

[0081] Furthermore, to prevent incorrect installation orientation of the housing seal ring 700 when installed within the seal ring limiting groove 811, an anti-misalignment groove 812 can be provided on the seal ring limiting groove 811. Correspondingly, the housing seal ring 700 also needs to have an anti-misalignment protrusion that mates with the anti-misalignment groove 812. When installing the housing seal ring 700, the installation orientation can be determined based on the correspondence between the anti-misalignment protrusion and the anti-misalignment groove 812, thus improving the installation efficiency of the housing seal ring 700.

[0082] Since zinc alloy materials will creep during high-temperature processes, in order to prevent the zinc alloy material from affecting the imaging effect due to high-temperature creep, in a specific embodiment of this application, aluminum alloy material is used as the material of the first housing 200 for mounting the circuit board 300 and the lens 100.

[0083] Since the second housing 800 does not require the installation of the circuit board 300 and the lens 100, its wall thickness is relatively thin in some areas. However, aluminum alloy has poor fluidity, making it difficult to form thin-walled areas and causing machining difficulties. In order to reduce costs, in this embodiment, zinc alloy, which has high fluidity, is used as the material for the second housing 800.

[0084] In one specific embodiment of this application, the connector 500 is offset from the center of the circuit board 300. Correspondingly, the connector housing 820 is also offset on the second housing 800, so that the cooperation between the connector 500 and the connector housing 820 can serve as a positioning structure for the installation direction of the second housing 800 and the first housing 200, avoiding problems such as affecting the assembly cycle or wasting materials due to mis-assembly on the production line.

[0085] It should be noted that the specific position of connector 500 on circuit board 300 is not limited. Under the premise that the installation space is not limited, the distance between the center point of connector 500 and circuit board 300 should be as large as possible. This setting makes it easier to identify the correspondence between second housing 800 and first housing 200.

[0086] To achieve a seal between the connector 500 and the second housing 800, an O-ring 600 is fitted onto the connector 500 in this embodiment. After the second housing 800 and the first housing 200 are installed, the second housing 800 presses the O-ring 600 against the mounting base of the connector 500, thus achieving a seal.

[0087] The connector 500 is soldered to the circuit board 300 via its mounting base. The mounting base of the connector 500 also serves as a limiting device for the O-ring 600. The mounting base of the connector 500 has a small area. When the second housing 800 gradually presses the O-ring 600, it is easy to squeeze the O-ring 600 out of the limiting end of the mounting base of the connector 500, resulting in sealing failure.

[0088] like Figure 8 and Figure 10 As shown, in this embodiment, the second housing 800 has a circumferential limiting sleeve 813 that wraps around the outside of the O-ring 600. When the second housing 800 is installed with the first housing 200, the O-ring 600 is embedded in the space enclosed by the circumferential limiting sleeve 813. This allows the circumferential limiting sleeve 813 to apply not only an axial compressive force to the O-ring 600 along the connector 500, but also a radial force towards the center from the outer side of the circumference of the O-ring 600. This prevents the O-ring 600 from expanding and deforming radially outward, thus preventing it from detaching from the mounting base of the connector 500. The second housing 800 can achieve lateral compression of the O-ring 600 through the circumferential limiting sleeve 813, maintaining the compression area while reducing the pressure on the O-ring 600 towards the first housing 200.

[0089] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0090] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0091] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0092] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A camera, characterized in that, include: A housing assembly having a mounting cavity and a lens mounting port (210) communicating with the mounting cavity. A circuit board (300) is installed in the mounting cavity, and the circuit board (300) is a single board structure; The lens (100) is mounted in the lens mounting port (210) and corresponds to the photosensitive chip on the circuit board (300); A connector (500) is connected to the circuit board (300), and the housing assembly has a connector housing (820) through which the connector (500) passes.

2. The camera as described in claim 1, characterized in that, The housing assembly includes a detachably connected first housing (200) and a second housing (800), which, when connected, form the mounting cavity. One of the first housing (200) and the second housing (800) has the lens mounting port (210), and the other has the connector housing (820). And / or, The connector (500) is an SMB connector.

3. The camera as described in claim 2, characterized in that, The first housing (200) includes an integral first housing body (220) and the lens mounting port (210). The lens mounting port (210) is located on the first side of the first housing body (220). The cavity of the first housing body (220) has a circuit board support platform (221). The circuit board (300) is fixed to the circuit board support platform (221) by circuit board fasteners (400). The second housing (800) includes a second housing body (810) with an integral structure and a connector housing (820). The connector housing (820) is located on the first side of the second housing body (810), and the second side of the second housing body (810) is mated and installed with the second side of the first housing body (220).

4. The camera as described in claim 3, characterized in that, Both the first housing (200) and the second housing (800) are made of metal, and the circuit board (300) has a copper leakage area (301), which is attached to the circuit board support platform (221). And / or, There are at least two circuit board support platforms (221), and a circuit board device avoidance area (222) is formed between each of the circuit board support platforms (221).

5. The camera as described in claim 3, characterized in that, The circuit board (300) is provided with a first error-proof positioning part, and the first housing body (220) is provided with a second error-proof positioning part that is in concave-convex cooperation with the first error-proof positioning part; And / or, The outer wall of the first housing body (220) is provided with an assembly positioning hole (225) for positioning with the assembly equipment.

6. The camera as described in claim 5, characterized in that, The first error-proof positioning part includes a first error-proof positioning hole (302) disposed at two opposite corners of the circuit board (300) and a second error-proof positioning hole (303) disposed at the other two opposite corners of the circuit board (300). The second error-proof positioning part includes a first error-proof positioning boss (224) that cooperates with the first error-proof positioning hole (302) and a second error-proof positioning boss (223) that cooperates with the second error-proof positioning hole (303).

7. The camera as described in claim 3, characterized in that, The housing assembly further includes a housing seal ring (700) disposed between the second housing body (810) and the first housing body (220).

8. The camera as described in any one of claims 2-7, characterized in that, The first housing (200) is made of aluminum alloy, and the second housing (800) is made of zinc alloy; And / or, The second housing (800) has an exhaust port (814).

9. The camera as described in any one of claims 2-7, characterized in that, The connector (500) is offset from the center of the circuit board (300).

10. The camera as described in any one of claims 2-7, characterized in that, The connector (500) is fitted with an O-ring (600), and the second housing (800) has a circumferential limiting sleeve (813) that wraps around the outside of the O-ring (600).

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