CN109413320B

CN109413320B - Metal laser front shell penetration type welded vehicle-mounted camera

Info

Publication number: CN109413320B
Application number: CN201811593439.4A
Authority: CN
Inventors: 王亚军; 邓博; 增田悟; 赵木祯; 赵敬红
Original assignee: Suzhou Invo Automotive Electronics Co ltd
Current assignee: Suzhou Invo Automotive Electronics Co ltd
Priority date: 2018-12-25
Filing date: 2018-12-25
Publication date: 2024-02-27
Anticipated expiration: 2038-12-25
Also published as: WO2020134694A1; CN109413320A

Abstract

The invention provides a vehicle-mounted camera with a metal laser front shell welded in a penetrating way, wherein the front shell and a rear shell are welded together without adding additional waterproof parts, so that external moisture is thoroughly isolated from entering the body, the whole vehicle-mounted camera is good in heat dissipation performance, and external electromagnetic interference can be shielded. The sensor comprises a front shell, a rear shell and a sensor substrate, wherein the front shell and the rear shell are made of metal materials, a front convex lens is fixedly arranged at the front end of the front shell, an inner groove is formed in the periphery of the rear end face of the front shell, which is used for positioning the side convex end of the rear shell, the front end face of the side convex end, which corresponds to the inner groove, is a plane, the part, which faces the inner groove, of the rear shell is positioned in a protruding mode, the sensor substrate is fixedly arranged on a rear end substrate mounting piece of the front shell, rear end connecting pieces of the sensor substrate are arranged backwards, the protruding portions of the rear shell are positioned and embedded in the inner groove of the front shell and are connected through laser penetration welding to form a closed welding line, and the sensor substrate and the rear end connecting pieces are positioned in a mounting cavity of the rear shell, which is closed on the front shell.

Description

Metal laser front shell penetration type welded vehicle-mounted camera

Technical Field

The invention relates to the technical field of vehicle-mounted cameras, in particular to a vehicle-mounted camera with a metal laser rear shell welded in a penetrating mode.

Background

The existing vehicle-mounted camera is characterized in that a rear shell and a front shell are connected through screws and are simultaneously locked with compression sealing gaskets to realize the waterproofing of the front shell and the rear shell, the rear shell and the front shell are both in plastic structure injection molding, meanwhile, the rear shell extrudes an inner shell, the inner shell extrudes a lens, the lens and the inner ring of a mounting hole of the front shell are provided with O-shaped rings, so that the waterproofing of the front shell and the lens is realized, the heat of a sensor positioned in an inner cavity can be slowly conducted to the outside only through an external plastic part, and the structure has the following defects: the gasket and the O-ring are easily deformed, thereby causing waterproof failure; the heat dissipation of the sensor is slow, and the temperature rises too high, so that the noise of the image is serious, and even decoking occurs; the whole structure has no shielding performance, is greatly interfered by external electromagnetic interference, and affects the stability of images.

Disclosure of Invention

Aiming at the problems, the invention provides the vehicle-mounted camera with the metal laser front shell welded in a penetrating way, wherein the front shell and the rear shell are welded together without adding additional waterproof parts, so that external moisture is thoroughly isolated from entering the body, the whole heat dissipation performance is good, and the external electromagnetic interference can be shielded.

A metal laser front shell penetration welded vehicle-mounted camera is characterized in that: the sensor comprises a front shell, a rear shell and a sensor substrate, wherein the front shell and the rear shell are made of metal materials, a front convex lens is fixedly arranged at the front end of the front shell, an inner groove is formed in the periphery of the rear end face of the front shell, which is used for positioning the side convex end of the rear shell, the front end face of the side convex end, which corresponds to the inner groove, is a plane, the part, facing the inner groove, of the rear shell is positioned in a protruding mode, the sensor substrate is fixedly arranged on a rear end substrate mounting piece of the front shell, a rear end connecting piece of the sensor substrate is arranged backwards, the protruding portion of the rear shell is positioned and embedded in the inner groove of the front shell and forms a closed welding line through laser penetration type welding connection, and the sensor substrate and the rear end connecting piece are positioned in a mounting cavity of the rear shell, which is combined with the front shell.

Further characterized in that:

the rear end face of the rear shell is provided with a rear convex external interface, and when the rear shell cover is arranged on the front shell, the rear end connecting piece is positioned and inserted into the rear convex external interface, so that data of the sensor substrate are conveniently transmitted to the outside through a circuit;

the laser penetration welding transmits the heat energy of light to the mutual contact surface of the convex positioning ring and the inner concave ring groove through the front end surface of the side convex end;

the thickness of the side convex end is 0.4 mm-2 mm, so that the laser penetration welding is ensured to be effectively and reliably carried out.

After the invention is adopted, the front shell and the rear shell are welded together through laser penetration welding, no additional waterproof component is needed to be added, external moisture is thoroughly isolated from entering the body, and the front shell and the rear shell are both made of metal materials, so that the integral heat dissipation performance is good, and the external electromagnetic interference can be shielded.

Drawings

FIG. 1 is a schematic diagram of a schematic cross-sectional front view of the present invention;

the names corresponding to the serial numbers in the figures are as follows:

front shell 1, back shell 2, sensor base plate 3, preceding protruding camera lens 4, side protruding end 5, preceding terminal surface 51, inner groove 6, protruding location 7, back base plate mount 8, back connecting piece 9, installation cavity 10, protruding external interface 11 of back.

Detailed Description

Vehicle-mounted camera with metal laser front shell penetration welding, see fig. 1: the sensor comprises a front shell 1, a rear shell 2 and a sensor substrate 3, wherein the front shell 1 and the rear shell 2 are made of metal materials, a front convex lens 4 is fixedly arranged at the front end of the front shell 1, an inner groove 6 is formed in the periphery of the rear end face of a side convex end 5 of the front shell 1, which is used for positioning the rear shell 2, the front end face 51 of the side convex end 5, which corresponds to the inner groove 6, is a plane, the part, facing the inner groove 6, of the rear shell 2 is provided with a convex positioning 7, the sensor substrate 3 is fixedly arranged on a rear end substrate mounting piece 8 of the front shell 1, a rear end connecting piece 9 of the sensor substrate 3 is arranged backwards, the convex positioning 7 of the rear shell 2 is embedded in the inner groove 6 of the front shell 1 and is connected through laser penetration welding to form a closed weld joint, and the sensor substrate 3 and the rear end connecting piece 9 are positioned in a mounting cavity 10, which is covered on the rear shell 1, behind the rear shell 2.

The rear end face of the rear shell 2 is provided with a rear convex external connection interface 11, and when the rear shell 2 is covered on the front shell 1, the rear end connecting piece 9 is positioned and inserted in the rear convex external connection interface 11, so that data of the sensor substrate 3 are conveniently transmitted to the outside through a circuit;

laser penetration welding transmits the heat energy of light to the mutual contact surfaces of the bulge positioning 7 and the inner groove 6 through the front end surface 51 of the side convex end 5;

the thickness of the side convex end 5 is 0.4 mm-2 mm, so that the laser penetration welding can be effectively and reliably performed.

The front shell and the rear shell are welded together through laser penetration welding without adding additional waterproof parts, so that external moisture is thoroughly isolated from entering the body, and the front shell and the rear shell are made of metal materials, so that the front shell and the rear shell are good in overall heat dissipation performance and can shield external electromagnetic interference.

The foregoing describes the embodiments of the present invention in detail, but the description is only a preferred embodiment of the invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications made in accordance with the scope of the present invention shall fall within the scope of the present patent.

Claims

1. A metal laser front shell penetration welded vehicle-mounted camera is characterized in that: the sensor comprises a front shell, a rear shell and a sensor substrate, wherein the front shell and the rear shell are made of metal materials, a front convex lens is fixedly arranged at the front end of the front shell, an inner groove is formed in the periphery of the rear end face of the front shell, which is used for positioning the side convex end of the rear shell, the front end face of the side convex end, which corresponds to the inner groove, is a plane, the part, facing the inner groove, of the rear shell is positioned in a protruding way, the sensor substrate is fixedly arranged on a rear end substrate mounting piece of the front shell, a rear end connecting piece of the sensor substrate is arranged backwards, the protruding part of the rear shell is positioned and embedded in the inner groove of the front shell and is connected with the rear shell through laser penetration welding to form a closed welding seam, and the sensor substrate and the rear end connecting piece are positioned in a mounting cavity of the rear shell, which is combined with the front shell;

the thickness of the side convex end is 0.4 mm-2 mm.