Plastic laser front case penetrating welding vehicle-mounted camera

Abstract

The present invention provides a plastic laser front case penetrating welding vehicle-mounted camera, the front case and a rear case are welded together, and no additional waterproof components are needed, and external moisture is completely prevented from entering inside of a body, and overall heat dissipation performance is good, and external electromagnetic interference can be shielded. The vehicle-mounted camera includes the front case, the rear case, a first substrate, and a second substrate. The front case and the rear case are both made of plastic materials, a front end of the front case is fixedly arranged with a front convex lens, an inner groove is disposed on an outer circumference of a rear end surface of a front case side convex for positioning the rear case, and a front end surface of the side convex end corresponding to the inner groove is a plane, and a portion of the rear case facing the inner groove is a bulge for positioning, the first substrate is fixedly installedon a rear substrate mounting member of the front case, the second substrate is fixedly installed on a corresponding substrate mounting member of the rear case, and a first rear end connector of the first substrate is connected to a front end slot of the second substrate.

Description

technical field [0001] The invention relates to the technical field of vehicle-mounted cameras, in particular to a vehicle-mounted camera with penetration welding of plastic laser front shells. Background technique [0002] In the existing vehicle-mounted camera, the rear shell and the front shell are connected by screws and a compressed gasket is locked at the same time to realize the waterproofing of the front and rear shells. Both the rear shell and the front shell are plastic injection molded, and the rear shell squeezes the inner shell The inner shell extrudes the lens, and an O-ring is set on the inner ring of the mounting hole of the lens and the front shell, so as to realize the waterproof of the front shell and the lens. The heat of the sensor located in the inner cavity can only be slowly transmitted to the outside through the outer plastic parts. This structure It has the following disadvantages: the gasket and O-ring are easily deformed, which leads to waterproof...

AI Technical Summary

Problems solved by technology

[0002] In the existing vehicle-mounted camera, the rear shell and the front shell are connected by screws and a compressed gasket is locked at the same time to realize the waterproofing of the front and rear shells. Both the rear shell and the front shell are injection molded with plastic structures. The inner shell extrudes the lens, and an O-ring is set on the inner ring of the mounting hole of the lens and the front shell, so as to realize the waterproof of the front shell and the lens. The heat of the sensor located in the inner cavity can only be slowly transmitted to the outside through the outer plastic parts. This structure It has the following disadvantages: the gasket and O-ring are easily deformed, which leads to waterproof failure; the heat dissipation of the sensor is slow, and the temperature rise is too high, which leads to serious image noise and even defocusing; the overall structure has no shielding performance and is greatly affected by external electromagnetic interference. , affecting image stabilization

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