Vehicle-mounted camera

Abstract

The utility model provides a vehicle-mounted camera which comprises a front shell, a rear shell, a lens arranged on the front shell and a circuit board located in a containing cavity defined by the front shell and the rear shell, and is characterized in that a connecting hole is formed in the circuit board, and the connecting hole is provided with a first end facing the front shell and a second end deviating from the front shell in the axial direction of the connecting hole; the vehicle-mounted camera further comprises a connecting component, the connecting component comprises a first connecting part and a second connecting part arranged at the first end of the first connecting part, the first connecting part is arranged in the connecting hole in a penetrating mode, and the second end of the first connecting part is fixed to the front shell. The second connecting part is at least partially located outside the second end of the connecting hole and at least abuts against the periphery of the second end of the connecting hole so that the circuit board can be fixed in the transverse direction, the lateral direction and the vertical direction. According to the embodiment of the invention, the circuit board of the vehicle-mounted camera can be effectively fixed in the transverse direction, the axial direction and the lateral direction, so that the circuit board cannot deviate, and the problem that the circuit board deviates after the vehicle-mounted camera is weather-proof and vibrates is effectively solved.

Description

Technical Field

[0001] This application belongs to the field of camera technology, and in particular relates to a vehicle-mounted camera. Background Technology

[0002] A vehicle camera is a video surveillance device installed in a car. It is mainly used to provide vision assistance during driving, improve driving safety, record driving scenes, and assist car owners with parking.

[0003] Existing automotive cameras typically consist of a housing and a circuit board, image sensor, and memory housed within it. To facilitate the installation of various components, the housing is usually divided into a front housing and a rear housing. In existing technologies, the method of fixing the circuit board to the front housing provides insufficient lateral holding force, leading to circuit board misalignment after weathering and vibration. This affects the image clarity and optical axis parameters of the camera, failing to meet the increasingly higher image resolution requirements of automotive cameras. Utility Model Content

[0004] To address the aforementioned technical problems in the prior art, this application provides an in-vehicle camera that can improve the connection stability between the circuit board and the front housing.

[0005] The technical solution adopted in this application embodiment is: a vehicle camera, including a front shell, a rear shell, a lens disposed on the front shell, and a circuit board located in the cavity formed by the front shell and the rear shell. The circuit board is provided with a connection hole, and the connection hole has a first end facing the front shell and a second end away from the front shell in its axial direction.

[0006] The vehicle-mounted camera also includes a connecting member, which includes a first connecting portion and a second connecting portion disposed at a first end of the first connecting portion. The first connecting portion passes through the connecting hole, and the second end of the first connecting portion is fixed to the front shell. The second connecting portion is at least partially located outside the second end of the connecting hole, and at least presses against the periphery of the second end of the connecting hole to achieve horizontal, lateral, and vertical fixation of the circuit board.

[0007] In an optional embodiment, the connecting member and the front shell are an integral structure, and the first connecting portion is formed by a portion of the front shell facing the circuit board protruding toward the circuit board.

[0008] In an optional embodiment, the connecting member and the front shell are separate structures, and the second end of the first connecting part of the connecting member is fixedly connected to the front shell.

[0009] In an optional embodiment, the first end of the first connecting portion of the connecting member extends out of the second end of the connecting hole, and the second connecting portion is formed by deformation with an outer diameter larger than that of the first connecting portion.

[0010] In an optional embodiment, a portion of the second connecting part overflows into the second end of the connecting hole and is fixed to the hole wall of the second end of the connecting hole, while another portion of the second connecting part protrudes from the second end of the connecting hole and is pressed and fixed together with the end face of the second end of the connecting hole.

[0011] In an optional embodiment, another portion of the second connecting portion has a mating surface that closely fits the end face of the second end of the connecting hole; and / or

[0012] The front cover has a mating surface on the side facing the circuit board that abuts against the end face of the first end of the connection hole.

[0013] In an optional embodiment, the first end of the first connecting portion is deformed by hot melting or riveting to form the second connecting portion.

[0014] In an optional embodiment, the first connecting part is rod-shaped, the second connecting part is nail-shaped and integral with the first connecting part, the outer peripheral surface of the second connecting part is a frustum-shaped surface, a portion of the second connecting part extends into the second end of the connecting hole, and another portion is exposed outside the second end of the connecting hole, so that the outer peripheral surface of the second connecting part presses against the periphery of the second end of the connecting hole, applying forces in different directions to the circuit board.

[0015] In an optional embodiment, the first connecting part is connected to the front shell by threads or riveting.

[0016] In an optional embodiment, the connecting member is made of plastic or metal; and / or

[0017] The front shell is made of plastic or metal.

[0018] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows: the connecting components of this application can effectively fix the circuit board in at least three directions: lateral, axial and sideways, so that the circuit board will not shift, effectively solving the problem of circuit board shifting after weathering and vibration of vehicle cameras.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this application.

[0020] The overview of various implementations or examples of the technology described in this application is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0021] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The drawings generally illustrate various embodiments by way of example rather than limitation and are used, together with the description and claims, to illustrate the disclosed embodiments. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method.

[0022] Figure 1 This is a cross-sectional view of the vehicle-mounted camera according to Embodiment 1 of this application.

[0023] Figure 2 for Figure 1 Enlarged view of part A in the middle.

[0024] Figure 3 This is a cross-sectional view of the vehicle-mounted camera according to Embodiment 2 of this application.

[0025] Figure 4 for Figure 3 Enlarged view of section B.

[0026] Figure label:

[0027] 1-Front housing; 11-Bump; 111-Threaded hole;

[0028] 2-Rear shell;

[0029] 3-lens;

[0030] 4-Circuit board; 41-Connecting hole; 411-End face;

[0031] 5-Connecting member; 51-First connecting part; 52-Second connecting part; 521-Frustum surface;

[0032] 6-Glue;

[0033] 7-Hot melt reinforcement. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the described embodiments of this application without creative effort are within the scope of protection of this application.

[0035] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] To keep the following description of the embodiments of this application clear and concise, detailed descriptions of known functions and known components are omitted.

[0037] like Figure 1 and Figure 3 As shown, this application embodiment provides a vehicle-mounted camera, which includes a front housing 1, a rear housing 2, a lens 3, and a circuit board 4. The lens 3 is disposed on the front housing 1, and the circuit board 4 is located within the cavity formed by the front housing 1 and the rear housing 2. The circuit board 4 is provided with a connection hole 41, which has a first end facing the front housing 1 and a second end facing away from the front housing 1 in its axial direction. Figures 1 to 4 The end with the connecting hole 41 facing downwards is the first end, and the end with the connecting hole 41 facing upwards is the second end.

[0038] like Figures 1 to 4 As shown, the vehicle-mounted camera also includes a connecting member 5, which includes a first connecting portion 51 and a second connecting portion 52 disposed at a first end of the first connecting portion 51. The first connecting portion 51 passes through the connecting hole 41, and the second end of the first connecting portion 51 is fixed to the front housing 1. The second connecting portion 52 is at least partially located outside the second end of the connecting hole 41, and at least presses against the periphery of the second end of the connecting hole 41 to achieve lateral, sideways, and vertical fixation of the circuit board 4.

[0039] When the circuit board 4 and the front shell 1 are connected by the connecting member 5 in this embodiment, the circuit board 4 can be effectively fixed in at least three directions: lateral, axial and sideways, so that the circuit board 4 will not shift, effectively solving the problem of the circuit board 4 shifting after weathering and vibration.

[0040] The specific structure of the connecting member 5 and the connection relationship between the connecting member 5 and the front shell 1 are described below using different embodiments.

[0041] Example 1

[0042] like Figure 1 and Figure 2 As shown, the connecting member 5 and the front shell 1 are an integral structure. The first connecting portion 51 of the connecting member 5 is formed by a partial protrusion of the front shell 1 towards the circuit board 4. That is, a column protrudes from the front shell 1 towards the circuit board 4, and the column forms the first connecting portion 51 and passes through the connecting hole 41. By using the protruding column of the front shell 1 as the component for fixing the circuit board 4, additional connecting parts such as screws are reduced. This not only satisfies the function of effective lateral and axial fixing, but also reduces the production material of screws, thereby reducing material costs.

[0043] In addition, the connecting member 5 and the front shell 1 can also be a separate structure. When the connecting member 5 is a separate structure, the second end of the first connecting part 51 is fixedly connected to the front shell 1 through an assembly process. The specific assembly process is not limited, such as threaded connection process, welding process, riveting process, etc.

[0044] Regardless of whether the connecting member 5 and the front shell 1 are an integral or separate structure, the first connecting part 51 of the connecting member 5 passes through the connecting hole 41, and the first end of the first connecting part 51 extends out of the second end of the connecting hole 41. The first end of the first connecting part 51 is deformed to form the second connecting part 52. During the deformation process, the outer diameter of the first end of the first connecting part 51 increases, and it at least presses against and fixes to the periphery or upper end face 411 of the second end of the connecting hole 41, so that the circuit board 4 is stably held on the front shell 1. It also forms a multi-directional fixing force on the circuit board 4, improves the connection stability between the circuit board 4 and the front shell 1, and avoids the circuit board 4 from becoming loose and shifting due to long-term use or vibration, which would affect the image clarity and optical axis parameters of the vehicle camera.

[0045] The method used to deform the first end of the first connecting portion 51 is not limited; for example, it can be achieved by hot melting or riveting. Hot melting can be achieved by contact heating or non-contact heating. Non-contact heating, for example, uses laser welding, which uses a laser to heat the first end of the first connecting portion 51, causing it to melt and deform, and then achieves connection after cooling. The outer diameter of the second connecting portion 52 formed by deformation is larger than the outer diameter of the first connecting portion 51. The second connecting portion 52 is equivalent to the head of the first connecting portion 51, and the head tightly locks the circuit board 4 onto the front housing 1, preventing the connection hole 41 of the circuit board 4 from going beyond the head and detaching from the front housing 1.

[0046] In some embodiments, during heat fusion, a portion of the first end of the first connecting portion 51 overflows into the second end of the connecting hole 41, such that a portion of the second connecting portion 52 is located inside the second end of the connecting hole 41 and fixed to the hole wall of the second end of the connecting hole 41, while the other portion of the second connecting portion 52 protrudes from the second end of the connecting hole 41 and is pressed and fixed together with the end face 411 of the second end of the connecting hole 41. (See also...) Figure 2 A portion of the second connecting part 52 is located inside the second end of the connecting hole 41. This not only increases the effective area for the connecting member 5 to be fixedly connected to the circuit board 4, but also allows for lateral fixation of the circuit board 4, preventing lateral movement of the circuit board 4.

[0047] Optionally, another part of the second connecting portion 52 has a mating surface that closely fits the end face 411 of the second end of the connecting hole 41, so that the second connecting portion 52 and the circuit board 4 can be tightly connected through surface to surface.

[0048] Furthermore, the side of the front cover 1 facing the circuit board 4 has a mating surface that abuts against the end face of the first end of the connecting hole 41. In this way, the front cover 1 and the second connecting part 52 clamp the circuit board 4 from opposite sides, preventing the circuit board 4 from shifting in the axial direction of the lens 3.

[0049] For example, such as Figure 1 and Figure 2 As shown, the front cover 1 has a protrusion 11 corresponding to the connection hole 41 on the side facing the circuit board 4 (the protrusion 11 and the front cover 1 are an integral structure). The side of the protrusion 11 facing the circuit board 4 is a plane and is tightly attached to the circuit board 4. This plane forms the aforementioned contact surface.

[0050] like Figure 1 As shown, the circuit board 4 can have multiple connection holes 41 to form multiple connections between the circuit board 4 and the front shell 1, thereby laterally fixing the circuit board 4 and improving the stability and reliability of the connection. The multiple connection holes 41 can be respectively located near the periphery of the circuit board 4. The side of the front shell 1 facing the circuit board 4 has multiple independent protrusions 11 corresponding one-to-one with the multiple connection holes 41, or it has an annular protrusion that simultaneously corresponds to multiple connection holes 41.

[0051] Example 2

[0052] like Figure 3 and Figure 4 As shown, the connecting member 5 and the front shell 1 are separate structures, and the first connecting part 51 is rod-shaped, while the second connecting part 52 is nail-shaped and is an integral structure with the first connecting part 51. That is, the connecting member 5 itself is an integral structure, and the second connecting part 52 is not formed by hot melting or riveting.

[0053] Continue to combine Figure 3 and Figure 4 The outer peripheral surface of the second connecting portion 52 is a frustoconical surface 521. A portion of the second connecting portion 52 extends (sinks) into the second end of the connecting hole 41, while another portion protrudes outside the second end of the connecting hole 41. This allows the outer peripheral surface (sidewall) of the second connecting portion 52 to press against the periphery of the second end of the connecting hole 41, applying forces to the circuit board 4 in three different directions, thus effectively fixing the circuit board 4 under forces in multiple different directions. Figure 4 As shown, the forces acting in three different directions are the transverse force Fx, the axial force Fz, and the lateral force Fy within the range of 0° to 90°.

[0054] The circuit board 4 and the front shell 1 are connected by the connecting member 5 of Embodiment 2. The second connecting part 52 and the circuit board 4 do not require a gasket or pressure ring to apply a retaining force, which reduces the number of parts and lowers the cost.

[0055] Optionally, the method of fixing the first connecting part 51 to the front shell 1 is not limited. For example, it can be fixed by threaded connection or riveting.

[0056] For example, continue to combine Figure 3 and Figure 4 The front cover 1 has a protrusion 11 (the protrusion 11 and the front cover 1 are integrally formed) on the side facing the circuit board 4, which corresponds to the connecting hole 41. The side of the protrusion 11 facing the circuit board 4 is flat and fits tightly against the circuit board 4. The protrusion 11 has a threaded hole 111. The first connecting part 51 of the connecting member 5 has an external thread, and the first connecting part 51 is threaded into the threaded hole 111 of the protrusion 11.

[0057] In the above embodiments one and two, the connecting member 5 can be made of plastic or metal. The front shell 1 can be made of plastic or metal. When the connecting member 5 and the front shell 1 are an integral structure, they are made of the same material. When the connecting member 5 and the front shell 1 are separate structures, they can be made of the same material or different materials.

[0058] The assembly process of the vehicle-mounted camera according to an embodiment of this application will be described below:

[0059] First, the lens 3 is glued and fixed to the front shell 1 with glue 6. When the connecting member 5 of Embodiment 1 is used, a columnar first connecting part 51 is provided on the front shell 1. The first connecting part 51 is passed through the connecting hole 41 of the circuit board 4. The first end of the first connecting part 51 protruding from the connecting hole 41 is deformed by means of high temperature hot melting or riveting, and part of it overflows into the connecting hole 41 of the circuit board 4 and is fixed with the hole wall. The other part is located outside the connecting hole 41, forming a limiting head. When the connecting member 5 of Embodiment 2 is used, the first connecting part 51 of the connecting member 5 is passed through the connecting hole 41 on the circuit board 4 and fixed to the front shell 1 by means of threaded connection or riveting. The side wall of the second connecting part 52 of the connecting member 5 with the frustum surface 521 contacts the periphery of the second end of the connecting hole 41 and is subjected to force, giving the circuit board 4 forces in multiple different directions, effectively fixing the circuit board 4. Finally, the front shell 1 and the rear shell 2 are fused together by laser through the front shell 1 with the hot melt rib 7 on the rear shell 2, ensuring the fixation and sealing of the shell composed of the front shell 1 and the rear shell 2.

[0060] The above description is intended to be illustrative and not restrictive. Those skilled in the art can make variations, modifications, substitutions, and alterations to the above embodiments within the scope of this disclosure. Moreover, the above examples (or one or more of them) can be used in combination with each other, and these embodiments can be combined with each other in various combinations or arrangements.

Claims

1. A vehicle-mounted camera, comprising a front housing, a rear housing, a lens disposed on the front housing, and a circuit board located within a cavity formed by the front housing and the rear housing, characterized in that, The circuit board is provided with a connection hole, which has a first end facing the front housing and a second end facing away from the front housing in its axial direction. The vehicle-mounted camera also includes a connecting member, which includes a first connecting portion and a second connecting portion disposed at a first end of the first connecting portion. The first connecting portion passes through the connecting hole, and the second end of the first connecting portion is fixed to the front shell. The second connecting portion is at least partially located outside the second end of the connecting hole, and at least presses against the periphery of the second end of the connecting hole to achieve horizontal, lateral, and vertical fixation of the circuit board.

2. The vehicle-mounted camera according to claim 1, characterized in that, The connecting member and the front shell are an integral structure, and the first connecting part is formed by a portion of the front shell facing the circuit board protruding toward the circuit board.

3. The vehicle-mounted camera according to claim 1, characterized in that, The connecting member and the front shell are separate structures, and the second end of the first connecting part of the connecting member is fixedly connected to the front shell.

4. The vehicle-mounted camera according to claim 2 or 3, characterized in that, The first end of the first connecting portion of the connecting member extends out of the second end of the connecting hole, and the second connecting portion is formed by deformation with an outer diameter larger than that of the first connecting portion.

5. The vehicle-mounted camera according to claim 4, characterized in that, A portion of the second connecting part overflows into the second end of the connecting hole and is fixed to the hole wall at the second end of the connecting hole. Another portion of the second connecting part protrudes from the second end of the connecting hole and is pressed and fixed together with the end face of the second end of the connecting hole.

6. The vehicle-mounted camera according to claim 5, characterized in that, Another portion of the second connecting part has a mating surface that closely fits the end face of the second end of the connecting hole; and / or The front cover has a mating surface on the side facing the circuit board that abuts against the end face of the first end of the connection hole.

7. The vehicle-mounted camera according to claim 4, characterized in that, The first end of the first connecting part is deformed by hot melting or riveting to form the second connecting part.

8. The vehicle-mounted camera according to claim 3, characterized in that, The first connecting part is rod-shaped, and the second connecting part is nail-shaped and integral with the first connecting part. The outer peripheral surface of the second connecting part is a frustum-shaped surface. A portion of the second connecting part extends into the second end of the connecting hole, and another portion protrudes outside the second end of the connecting hole, so that the outer peripheral surface of the second connecting part presses against the periphery of the second end of the connecting hole, applying forces in different directions to the circuit board.

9. The vehicle-mounted camera according to claim 3, characterized in that, The first connecting part is connected to the front shell by thread or riveting.

10. The vehicle-mounted camera according to claim 1, characterized in that, The connecting component is made of plastic or metal; and / or The front shell is made of plastic or metal.

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