Shielding structure of vehicle-mounted camera

Abstract

The utility model discloses a shielding structure of a vehicle-mounted camera, which comprises a rear cover, a shell, a circuit board, an electric connector, a first shielding shell, a second shielding shell and a lens, the first shielding shell and the second shielding shell are arranged in a cavity formed by combining the rear cover and the shell, and the first shielding shell is provided with a through hole for one end of the electric connector to pass through. A plurality of first elastic pieces are formed around the through hole of the first shielding shell to clamp one end of the electric connector, the second shielding shell is located on the side, away from the rear cover, of the first shielding shell, a shielding cavity used for containing the circuit board is formed between the second shielding shell and the lens, one end of the second shielding shell abuts against the shell, and the other end of the second shielding shell is provided with a plurality of second elastic pieces. And the second elastic sheet is in elastic contact with the first shielding shell. A two-piece shielding shell structure is adopted, the first shielding shell is connected with the electric connector in a clamped mode, the first shielding shell and the second shielding shell are in elastic contact through the second elastic piece, screw locking is not needed, the size and thickness of the shell are reduced, and miniaturization of the vehicle-mounted camera is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of vehicle-mounted cameras, in particular to a shielding structure of a vehicle-mounted camera. Background Art

[0002] As the degree of automobile automation increases, the vehicle monitoring system has become one of the standard features of modern cars, and the vehicle camera is one of the indispensable components in the vehicle monitoring system.

[0003] Conventional automotive cameras measure approximately 24mm long and 24mm wide. The shield is secured to the plastic housing with screws, making the plastic housing thick and bulky. This creates the risk of missing parts during assembly of the camera housing and shield, and reduces assembly efficiency with screws. As cameras become increasingly smaller, the newer cameras measure approximately 18mm long and 18mm wide, making conventional screw-fastening methods impractical. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides a shielding structure for a vehicle-mounted camera, which does not require the use of locking screws to fix the shielding shell, improves assembly efficiency, and reduces the size of the vehicle-mounted camera.

[0005] To achieve the above-mentioned purpose, the present invention is realized through the following technical solutions:

[0006] A shielding structure for a vehicle-mounted camera includes a back cover, an outer shell, a circuit board, an electrical connector and a lens. The electrical connector is installed in the back cover and one end of the electrical connector extends into a cavity formed by the back cover and the outer shell and is connected to the circuit board. One end of the lens is inserted into the outer shell. A first shielding shell and a second shielding shell are also installed in the cavity formed by the back cover and the outer shell. The first shielding shell has a through hole through which one end of the power supply connector passes. The first shielding shell forms a plurality of first spring clips around the through hole to clamp one end of the electrical connector. The second shielding shell is located on a side of the first shielding shell away from the back cover. A shielding chamber for accommodating the circuit board is formed between the second shielding shell and the lens. One end of the second shielding shell abuts the outer shell, and the other end is provided with a plurality of second spring clips. The second spring clips are in elastic contact with the first shielding shell.

[0007] Furthermore, the second shielding shell is provided with a plurality of convex bumps, which are in contact with a side of the first shielding shell facing the circuit board.

[0008] Furthermore, the convex bump and the second elastic piece are integrally formed with the second shielding shell.

[0009] Furthermore, the second shielding shell is provided with more than two second elastic pieces and more than two convex hulls, and the convex hulls and the second elastic pieces are alternately distributed at intervals.

[0010] Furthermore, a side of the first shielding cover facing away from the second shielding cover abuts against the back cover, the second shielding cover is provided with a through hole, and the first elastic piece protrudes toward the through hole on the second shielding cover.

[0011] Furthermore, a top column is provided inside the shell, and one end of the second shielding shell away from the first shielding shell rests on the top column. Along the axis of the lens, the second shielding shell is clamped by the top column and the first shielding shell.

[0012] The utility model has the following beneficial effects:

[0013] A two-piece shielding shell structure is adopted in which a first shielding shell and a second shielding shell are matched. The first shielding shell is snap-connected to the electrical connector, and the first shielding shell and the second shielding shell form elastic contact through a second spring sheet. The assembly between the first shielding shell and the second shielding shell does not require screws, and no screw installation space is required inside the shell, thereby reducing the size and thickness of the shell, which is conducive to miniaturization of the vehicle-mounted camera and reducing costs.

[0014] A convex hump is provided on the top surface of the second shielding shell to increase the contact area with the first shielding shell. The convex hump also serves as a backup contact point to avoid poor contact caused by insufficient elasticity of the second spring piece. The convex hump and the second spring piece cooperate to ensure good contact between the first shielding shell and the second shielding shell.

[0015] The second elastic piece absorbs the assembly tolerance and ensures good contact between the first shielding shell and the second shielding shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the shielding structure of the vehicle-mounted camera according to an embodiment of the present utility model;

[0017] Figure 2 is an assembly diagram of the first shielding shell, the second shielding shell and the electrical connection terminals;

[0018] Figure 3 yes Figure 2 Another angle view of

[0019] Figure 4 It is an exploded view of the first shielding shell, the second shielding shell and the electrical connection terminals. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] like Figures 1 to 4 As shown, this embodiment discloses a shielding structure for an in-vehicle camera, comprising a back cover 1, an outer shell 2, a circuit board 3, an electrical connector 4, a first shielding shell 5, a second shielding shell 6, and a lens 7. One end of the lens 7 is inserted into the outer shell 2 from the end of the outer shell 2 away from the back cover 1. The first shielding shell 5 and the second shielding shell 6 are located in a cavity formed by the back cover and the outer shell 2. The electrical connector is mounted in the back cover, and one end thereof extends into the cavity formed by the back cover and the outer shell to connect with the circuit board 3. The first shielding shell 5 has a through hole through which one end of the power connector 4 passes. The first shielding shell 5 has a plurality of first elastic fingers 8 formed around the through hole to retain one end of the electrical connector 4 to form a ground shield. The second shielding shell 6 is located on the side of the first shielding shell away from the back cover. A shielding chamber for accommodating the circuit board 3 is formed between the second shielding shell 6 and the lens 7. One end of the second shielding shell 6 abuts the outer shell, and the other end is provided with a plurality of second elastic fingers, which elastically contact the first shielding shell. The first shielding shell 5 contacts the electrical connector 4 to achieve a ground shielding effect, and the second shielding shell 6 contacts the first shielding shell 5 to achieve a ground shielding effect.

[0023] The first shielding shell 5 and the second shielding shell 6 are both made of metal. The first shielding shell 5 is clamped to the electrical connector 4 via a first spring 8, and the second shielding shell 6 is elastically contacted with the first shielding shell 5 via a second spring 9. The first shielding shell 5 and the second shielding shell 6 are grounded through contact, eliminating the need for screws to secure the shielding shells. This meets the shielding function requirements while reducing screw tightening and assembly costs.

[0024] The first shielding shell 5 contacts the back cover 1 to limit its position. After the first shielding shell 5 is clamped with the electrical connector 4 through a plurality of first elastic pieces 8 , the position of the first shielding shell 5 is fixed.

[0025] The top plate 61 of the second shielding shell 6 is provided with a plurality of protrusions 10 on the side facing the first shielding shell 5. The protrusions 10 are in contact with the first shielding shell 5. Preferably, the protrusions and the second elastic pieces 9 are integrally formed with the second shielding shell 6. In other embodiments, the protrusions and the second elastic pieces 9 can also be mounted to the second shielding shell by welding, riveting, or other methods.

[0026] A top post is provided inside the housing, and one end of the second shielding shell 6 away from the first shielding shell 5 rests on the top post. Along the axis of the lens, the second shielding shell 6 is clamped by the top post and the first shielding shell 5. In this way, the position of the second shielding shell 6 is fixed.

[0027] In this embodiment, the second shielding shell 6 is provided with two opposing second springs 9 and two opposing convex bumps. The number of second springs is not limited to this, and may be provided with only one or more. The number of convex bumps is also not limited to two. Preferably, the convex bumps and second springs are alternately spaced.

[0028] The first shielding cover abuts the rear cover on the side facing away from the second shielding cover. The second shielding cover has a through hole, and the first spring plate protrudes toward the through hole in the second shielding cover. The first spring plate 8 protrudes toward the side facing away from the rear cover 1 and extends into the through hole in the second shielding shell 6, allowing the first shielding cover to fit snugly against the rear cover 1. This avoids increasing the length of the vehicle camera in the front-to-back direction (axial direction of the lens), facilitating camera miniaturization.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. Therefore, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present invention.

Claims

1. A shielding structure for a vehicle-mounted camera, comprising a rear cover, a housing, a circuit board, an electrical connector, and a lens. The electrical connector is mounted in the rear cover, one end of the electrical connector extending into a cavity formed by the rear cover and the housing to connect to the circuit board. One end of the lens is inserted into the housing, characterized in that: A first shielding shell and a second shielding shell are also installed in the cavity formed by the combination of the back cover and the outer shell. The first shielding shell has a through hole through which one end of the power supply connector passes. The first shielding shell forms a plurality of first spring clips around the through hole to clamp one end of the electrical connector. The second shielding shell is located on the side of the first shielding shell away from the back cover. A shielding chamber for accommodating a circuit board is formed between the second shielding shell and the lens. One end of the second shielding shell abuts the outer shell, and the other end is provided with a plurality of second spring clips. The second spring clips are in elastic contact with the first shielding shell.

2. The shielding structure of the vehicle-mounted camera according to claim 1, characterized in that: The second shielding shell is provided with a plurality of convex bumps, and the convex bumps are in contact with a side of the first shielding shell facing the circuit board.

3. The shielding structure of the vehicle-mounted camera according to claim 2, characterized in that: The convex bump and the second elastic piece are both integrally formed with the second shielding shell.

4. The shielding structure of the vehicle-mounted camera according to claim 3, characterized in that: The second shielding shell is provided with more than two second elastic pieces and more than two convex bumps, and the convex bumps and the second elastic pieces are alternately distributed at intervals.

5. The shielding structure of the vehicle-mounted camera according to claim 1, characterized in that: The first shielding cover abuts against the rear cover on one side facing away from the second shielding cover. The second shielding cover is provided with a through hole. The first elastic piece protrudes toward the through hole on the second shielding cover.

6. The shielding structure of the vehicle-mounted camera according to claim 1, characterized in that: A top column is provided inside the shell, and one end of the second shielding shell away from the first shielding shell is against the top column. Along the axis of the lens, the second shielding shell is clamped by the top column and the first shielding shell.

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