WO2020134696A1

WO2020134696A1 - Novel focusing vehicle-mounted camera

Info

Publication number: WO2020134696A1
Application number: PCT/CN2019/119040
Authority: WO
Inventors: 王亚军; 邓博; 增田悟; 张小勇; 许贻新
Original assignee: 苏州智华汽车电子有限公司
Priority date: 2018-12-26
Filing date: 2019-11-17
Publication date: 2020-07-02
Also published as: CN109451231A; CN109451231B

Abstract

The present invention provides a novel focusing vehicle-mounted camera which enables the camera to be always in an optimal clear state and ensures the imaging quality of the camera. The novel focusing vehicle-mounted camera comprises a front housing, a rear housing, a sensor substrate, and a lens, wherein a convex lens is fixedly arranged at a front end of the front housing; a plurality of thickness direction penetrating holes are provided in the periphery of the sensor substrate; an electrode bushing is fixedly mounted in each thickness direction penetrating hole; each electrode bushing is fixedly connected to a corresponding electrode bar; a lower end of each electrode bar is fixedly connected to a corresponding mounting position of the front housing; an adjusting distance is reserved between the sensor substrate and the corresponding mounting position of the front housing; the sensor substrate and the front housing are connected by means of the electrode bar to form an integral structure; the sensor substrate is connected to each electrode bushing by means of a circuit; the rear housing covers the front housing to form a mounting cavity; and the sensor substrate is located in the mounting cavity.

Description

A new focusing vehicle camera

Technical field

The invention relates to the technical field of vehicle-mounted cameras, in particular to a new focusing vehicle-mounted camera.

Background technique

Existing on-board camera, see Fig. 1, the rear shell e and the front shell d are connected and locked with a compression seal b by screws a to achieve waterproofing of the front and rear shells, the rear shell e squeezes the inner shell f, and the inner shell f squeezes the lens c , The lens c and the front case d squeeze the O-ring g to achieve waterproofness between the front case and the lens, and its focal length adjustment method fixes the sensor h and the inner case f together, so that the lens c and the inner case f are threaded Adjusting up and down to complete the focus adjustment, the disadvantages are as follows: During the process of the rear shell e pressing down the inner shell f, the inner shell f is deformed by force, which changes the relative distance between the PCBA and the lens, and then defocusing occurs, resulting in blurred images. , Seriously affect the quality, poor stability, high defect rate; and the torque between the lens c and the inner shell f is difficult to control, it is easy to produce debris in the production, and black spots appear on the image.

Summary of the invention

In view of the above problems, the present invention provides a new focusing vehicle-mounted camera, which keeps the camera in the best clear state at all times and ensures the imaging quality of the camera.

A novel focusing vehicle-mounted camera, characterized in that it includes a front case, a rear case, a sensor substrate and a lens, a front convex lens is fixed at the front end of the front case, and a number of thickness directions are arranged around the sensor substrate Through holes, each of said thickness is fixed with an electrode bushing in the through hole, each electrode bushing is fixed to the corresponding electrode rod, and the lower end of each electrode rod is fixed to the corresponding installation position of the front case , There is an adjustment distance between the corresponding mounting positions of the sensor substrate and the front case, the sensor substrate and the front case are connected by an electrode rod to form an overall structure, and each of the sensor substrates is connected by a line An electrode bushing, the rear case cover is installed behind the front case to form an installation cavity, and the sensor substrate is located in the installation cavity.

Its further features are:

The outer periphery of the front shell for positioning the rear end surface of the rear shell is provided with a convex positioning, the rear shell is provided with a stop plane corresponding to the position of the convex side of the convex positioning, and the side convex end corresponds to the stop The rear end surface of the blocking plane is a flat surface, and the rear end surface of the convex positioning of the front shell is attached to the stop plane of the rear shell, and is connected by laser penetration welding to form a closed welding seam to completely isolate the external moisture from entering Inside the installation cavity;

The lens is adhesively connected to the corresponding positioning hole of the front case through UV glue encapsulation, which does not need to add additional waterproof parts to completely isolate external moisture from entering the installation cavity;

The rear end surface of the rear case is provided with an external part. When the rear case cover is mounted on the front case, the rear end connector of the sensor substrate is positioned and connected to the front end interface portion of the external part, so that the sensor substrate Data is easy to transmit through the line;

The laser penetration welding transmits the thermal energy of light to the mutual contact surfaces of the convex positioning and the stop plane through the rear end surface of the side convex end;

The thickness of the side convex end is 0.4mm-2mm, which ensures the effective and reliable laser penetration welding;

A front convex stop is provided on the outer periphery of the stop plane of the side convex end, and the front end surface of the front convex stop is disposed close to the outer peripheral stop surface of the front shell, so that the outer periphery of the weld seam has a package end surface to ensure The connection of internal welds is reliable and effective.

After adopting the present invention, the sensor substrate applies different voltages to the electrode rod through the circuit, thereby causing different deformation of the electrode rod, thereby adjusting the distance between the sensor substrate and the lens in real time, and then adjusting the focal length in real time, so that the camera is always in the best clear state, ensuring The imaging quality of the camera.

BRIEF DESCRIPTION

Figure 1 is a schematic diagram of the structure of an existing vehicle camera;

2 is a schematic diagram of the perspective view structure of the present invention (half section of the rear shell);

The names corresponding to the serial numbers in the figure are as follows:

Front case 1, rear case 2, sensor substrate 3, lens 4, electrode bushing 5, electrode rod 6, installation position 7, adjustment pitch 8, installation cavity 9, convex positioning 10, side convex end 11, stop plane 111 , The rear end surface 112, the external part 12, the rear end connector 13, the front convex stop 14, the outer peripheral stop surface 15.

detailed description

A new type of focusing vehicle-mounted camera, see Figure 2: It includes a front case 1, a rear case 2, a sensor substrate 3, and a lens 4. The front end of the front case 1 is fixed with a front convex lens 4 and the sensor substrate 3 is arranged around There are a number of through-thickness holes, each of which is fitted with an electrode bushing 5, each electrode bushing 5 is fixed to the corresponding electrode rod 6, and the lower end of each electrode rod 6 is fixed to the front shell 1 Corresponding to the installation position 7, there is an adjustment distance 8 between the sensor substrate 3 and the corresponding installation position 7 of the front case, the sensor substrate 3 and the front case 1 are connected by an electrode rod 6 to form an overall structure, and each electrode is connected to the sensor substrate 3 by a line The bushing 5 and the rear case 2 are mounted on the front case 1 to form an installation cavity 9, and the sensor substrate 3 is located in the installation cavity 9.

The outer periphery of the front shell 1 for positioning the rear end surface of the rear shell 2 is provided with a convex positioning 10, and the rear shell 2 is provided with a stop plane 111 corresponding to the position of the lateral convex end 11 of the convex positioning 10, and the corresponding The rear end surface 112 of the stop plane 111 is a flat surface, and the rear end surface of the convex positioning 10 of the front case 1 is attached to the stop plane 111 of the rear case 2 and connected by laser penetration welding to form a closed weld seam, thoroughly Isolate external moisture into the installation cavity 9;

The lens 4 is connected to the corresponding positioning hole of the front case 1 by UV glue encapsulation, which does not need to add additional waterproof parts, and completely isolates external moisture from entering the installation cavity;

The rear end surface of the rear case 2 is provided with an external part 12. When the rear case 2 is mounted on the front case 1, the rear end connector 13 of the sensor substrate 3 is positioned and connected to the front end interface portion of the external part 12, making the data of the sensor substrate 3 convenient Transmission through the line;

Laser penetration welding transmits the thermal energy of light to the mutual contact surfaces of the convex positioning 10 and the stop plane 111 through the rear end surface 112 of the side convex end 11;

The thickness of the side convex end 11 is 0.4mm ~ 2mm, to ensure the effective and reliable laser penetration welding;

The outer periphery of the stop plane 111 of the side convex end 11 is provided with a front convex stopper 14, and the front end surface of the front convex stopper 14 is disposed close to the outer circumferential stopper surface 15 of the front case 1, so that the outer periphery of the weld seam has a package end face, Ensure reliable and effective connection of internal welds.

In a specific embodiment, the sensor substrate 3 has a rectangular shape. The four corners of the sensor substrate 3 are respectively provided with a corresponding thickness-through hole. The four thickness-through holes are respectively fixed with electrode bushings 5, each electrode bushing 5 The corresponding electrode rods 6 are fixed, and the lower end of each electrode rod 6 is fixed to the corresponding installation position 7 of the front case 1.

The beneficial effects are as follows:

1 The sensor substrate applies different voltages to the electrode rod, and the electrode rod deforms differently, so that the focal length is adjusted from time to time, so that the camera is always in the state of the best resolution;

2 Use a laser to weld the rear shell and the front shell at the position of the rear surface of the side convex end to completely isolate the external moisture from entering the body;

3. The lens is connected to the corresponding positioning hole of the front case through UV glue encapsulation, which does not need to add additional waterproof parts, and completely isolates the external moisture from entering the installation cavity.

The specific embodiments of the present invention have been described in detail above, but the content is only the preferred embodiments created by the present invention and cannot be considered as limiting the scope of implementation of the invention. All equal changes and improvements made in accordance with the scope of the invention-creation application shall still fall within the scope of this patent.

Claims

A novel focusing vehicle-mounted camera, characterized in that it includes a front case, a rear case, a sensor substrate and a lens, a front convex lens is fixed at the front end of the front case, and a number of thickness directions are arranged around the sensor substrate Through holes, each of said thickness is fixed with an electrode bushing in the through hole, each electrode bushing is fixed to the corresponding electrode rod, and the lower end of each electrode rod is fixed to the corresponding installation position of the front case , There is an adjustment distance between the corresponding mounting positions of the sensor substrate and the front case, the sensor substrate and the front case are connected by an electrode rod to form an overall structure, and each of the sensor substrates is connected by a line An electrode bushing, the rear case cover is installed behind the front case to form an installation cavity, and the sensor substrate is located in the installation cavity.
A novel focusing vehicle-mounted camera as claimed in claim 1, wherein the outer periphery of the front shell for positioning the rear end surface of the rear shell is provided with a convex positioning, and the rear shell corresponds to the convex positioning A stop plane is provided at the position of the side convex end of the side, the rear end surface of the side convex end corresponding to the stop plane is a plane, and the rear end surface of the convex positioning of the front shell is fitted to the stop plane of the rear shell, And through laser penetration welding connection, forming a closed weld.
A new focusing vehicle-mounted camera as claimed in claim 1, wherein the lens is connected to the corresponding positioning hole of the front case by UV glue encapsulation.
A novel focusing vehicle-mounted camera according to claim 1, wherein an external part is provided on the rear end surface of the rear case, and when the rear case cover is mounted on the front case, the rear of the sensor substrate The end connector is positioned and connected to the front end interface portion of the external component.
A novel focusing vehicle-mounted camera according to claim 2, wherein the laser penetrating welding transmits the thermal energy of light through the rear end surface of the side convex end to the mutual contact surface of the convex positioning and stop plane.
A novel focusing vehicle-mounted camera according to claim 5, wherein the thickness of the side convex end is 0.4 mm to 2 mm.
A new focusing vehicle-mounted camera according to claim 2, wherein the outer periphery of the stop plane of the side convex end is provided with a front convex stop, and the front end surface of the front convex stop is close to the front The outer peripheral stop surface of the shell is provided.