WO2020134694A1 - Vehicle-mounted camera with metal front shell welded by laser in penetrating manner - Google Patents

Vehicle-mounted camera with metal front shell welded by laser in penetrating manner Download PDF

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Publication number
WO2020134694A1
WO2020134694A1 PCT/CN2019/119038 CN2019119038W WO2020134694A1 WO 2020134694 A1 WO2020134694 A1 WO 2020134694A1 CN 2019119038 W CN2019119038 W CN 2019119038W WO 2020134694 A1 WO2020134694 A1 WO 2020134694A1
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shell
front shell
inner groove
convex
laser
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PCT/CN2019/119038
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French (fr)
Chinese (zh)
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王亚军
邓博
增田悟
赵木祯
赵敬红
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苏州智华汽车电子有限公司
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Publication of WO2020134694A1 publication Critical patent/WO2020134694A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • H04N23/51Housings

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  • the invention relates to the technical field of a vehicle-mounted camera, in particular to a vehicle-mounted camera with a penetration welding of a metal laser back shell.
  • the back shell and the front shell are connected with screws and the compression seal pads are locked to achieve the waterproofing of the front and rear shells.
  • Both the back shell and the front shell are injection molded with a plastic structure, and at the same time, the back shell squeezes the inner shell, The inner shell squeezes the lens, the inner ring of the mounting hole of the lens and the front shell is provided with an O-ring, 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 conducted to the outside through the external plastic parts, this structure It has the following disadvantages: the gasket and O-ring are easily deformed, which leads to waterproof failure; the sensor's heat dissipation is slow, 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 the stability of the image.
  • the present invention provides a metal laser front shell penetration welding vehicle camera, the front shell and the rear shell are welded together, no additional waterproof parts are needed, and the external moisture is completely blocked from entering the body.
  • An on-vehicle camera for penetration welding of a metal laser front shell characterized in that it includes a front shell, a rear shell and a sensor substrate, the front shell and the rear shell are made of metal, and the front end of the front shell is fixedly provided A front convex lens, an inner groove is provided on the outer periphery of the rear end surface of the side convex end of the front case for positioning the rear case, the front end face of the side convex end corresponding to the inner groove is flat, and the rear case The part facing the inner groove is positioned by protrusions, the sensor substrate is fixed on the rear-end substrate mounting member of the front case, the rear-end connector of the sensor substrate is arranged rearward, and the rear case The convex positioning is embedded in the inner groove of the front case, and is connected by laser penetration welding to form a closed welding seam.
  • the sensor substrate and the rear end connector are located behind the rear case cover and the front case. Cavity.
  • the rear surface of the rear shell is provided with a rear convex external interface.
  • the rear end connector is positioned and inserted into the rear convex external interface, so that the data of the sensor substrate Convenient transmission to the outside through the line;
  • the laser penetration welding transmits the thermal energy of light through the front end surface of the side convex end to the mutual contact surface of the convex positioning ring and the inner concave ring groove;
  • the thickness of the side convex end is 0.4 mm to 2 mm, which ensures effective and reliable laser penetration welding.
  • the front shell and the rear shell are welded together by laser penetration welding without adding additional waterproof parts to completely isolate the external moisture from entering the body. Since the front shell and the rear shell are made of metal, the overall Good heat dissipation performance, and can shield external electromagnetic interference.
  • FIG. 1 is a schematic diagram of the front sectional view of the present invention.
  • Front case 1 rear case 2, sensor substrate 3, front convex lens 4, side convex end 5, front end surface 51, inner groove 6, convex positioning 7, rear substrate mounting member 8, rear connector 9, installation Cavity 10, rear convex external interface 11.
  • a metal laser front shell penetration welding vehicle camera see Figure 1: It includes a front shell 1, a rear shell 2, a sensor substrate 3, the front shell 1, the rear shell 2 are made of metal material, the front end of the front shell 1 is fixed The front convex lens 4 is provided.
  • the outer periphery of the rear end surface of the side convex end 5 of the front case 1 for positioning the rear case 2 is provided with an inner groove 6.
  • the front end surface 51 of the side convex end 5 corresponding to the inner groove 6 is flat ,
  • the part of the rear housing 2 facing the inner groove 6 is the convex positioning 7, the sensor substrate 3 is fixed on the rear substrate mounting member 8 of the front housing 1, and the rear connector 9 of the sensor substrate 3 is arranged rearward.
  • the convex positioning 7 of the shell 2 is embedded in the inner groove 6 of the front shell 1, and is connected by laser penetration welding to form a closed weld.
  • the sensor substrate 3 and the rear connector 9 are located on the rear shell 2 and closed Inside the installation cavity 10 behind the front shell 1.
  • the rear surface of the rear shell 2 is provided with a rear convex external interface 11, when the rear shell 2 is mounted on the front shell 1, the rear connector 9 is positioned and inserted into the rear convex external interface 11, so that the data of the sensor substrate 3 can be easily passed through the circuit Transfer to the outside;
  • Laser penetration welding transmits the thermal energy of light through the front end surface 51 of the side convex end 5 to the mutual contact surface of the convex positioning 7 and the inner groove 6;
  • the thickness of the side convex end 5 is 0.4 mm to 2 mm, which ensures effective and reliable laser penetration welding.
  • front and back shells together by laser penetration welding without adding additional waterproof parts to completely isolate the external moisture from entering the body. Since the front and back shells are made of metal, the overall heat dissipation performance is good, and Can shield external electromagnetic interference.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)
  • Laser Beam Processing (AREA)
  • Structure And Mechanism Of Cameras (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Studio Devices (AREA)

Abstract

Provided is a vehicle-mounted camera with a metal front shell welded by laser in a penetrating manner. A front shell and a rear shell of the camera are welded together, without the need to add an additional waterproof component, such that outside water is thoroughly prevented from entering the interior of a body, the overall heat dissipation performance is good, and external electromagnetic interference can be shielded. The camera comprises a front shell, a rear shell, and a sensor base plate, wherein the front shell and the rear shell are both made of a metal material; a front end of the front shell is fixedly provided with a front convex lens; an inner groove is provided in the periphery, for positioning a rear end face of a lateral convex end of the rear shell, of the front shell; a front end face, corresponding to the inner groove, of the lateral convex end is a plane; the portion, facing the inner groove, of the rear shell is a protrusion positioning portion; the sensor base plate is fixedly mounted on a rear-end base plate mounting member of the front shell; a rear-end connecting member of the sensor base plate is arranged backwards; the protrusion positioning portion of the rear shell is embedded in the inner groove of the front shell and is connected through laser penetration-type welding to form a closed weld joint; and the sensor base plate and the rear-end connecting member are located in a mounting cavity formed after the rear shell covers the front shell.

Description

一种金属激光前壳穿透式焊接的车载摄像头Vehicle-mounted camera for penetration welding of metal laser front shell 技术领域Technical field
本发明涉及车载摄像头的技术领域,具体为一种金属激光后壳穿透式焊接的车载摄像头。The invention relates to the technical field of a vehicle-mounted camera, in particular to a vehicle-mounted camera with a penetration welding of a metal laser back shell.
背景技术Background technique
现有的车载摄像头,其后壳与前壳通过螺丝连接同时锁附有压缩密封垫,来实现前后壳的防水,后壳与前壳均为塑料结构注塑成型,同时后壳挤压内壳、内壳挤压镜头、镜头与前壳的安装孔内圈设置O型圈,从而实现前壳与镜头的防水,位于内腔的传感器的热量只能通过外部的塑胶件缓慢向外部传导,该结构具有如下缺点:密封垫和O型圈容易变形,进而导致防水失效;传感器的散热缓慢,温升过高进而导致图像噪点严重、甚至出现脱焦;整体结构没有屏蔽性能,受外界的电磁干扰大,影响图像的稳定。In the existing car camera, the back shell and the front shell are connected with screws and the compression seal pads are locked to achieve the waterproofing of the front and rear shells. Both the back shell and the front shell are injection molded with a plastic structure, and at the same time, the back shell squeezes the inner shell, The inner shell squeezes the lens, the inner ring of the mounting hole of the lens and the front shell is provided with an O-ring, 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 conducted to the outside through the external plastic parts, this structure It has the following disadvantages: the gasket and O-ring are easily deformed, which leads to waterproof failure; the sensor's heat dissipation is slow, 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 the stability of the image.
发明内容Summary of the invention
针对上述问题,本发明提供了一种金属激光前壳穿透式焊接的车载摄像头,其前壳、后壳焊接在一起,不需增加额外的防水部件,彻底隔绝外界水分进入本体内部,整体的散热性能好,且可屏蔽外部的电磁干扰。In view of the above problems, the present invention provides a metal laser front shell penetration welding vehicle camera, the front shell and the rear shell are welded together, no additional waterproof parts are needed, and the external moisture is completely blocked from entering the body. The overall Good heat dissipation performance, and can shield external electromagnetic interference.
一种金属激光前壳穿透式焊接的车载摄像头,其特征在于:其包括前壳、后壳、传感器基板,所述前壳、后壳均为金属材质,所述前壳的前端固设有前凸镜头,所述前壳的用于定位后壳的侧凸端的后端面的外周设置内凹槽,所述侧凸端的对应于所述内凹槽的前端面为平面,所述后壳的朝向所述内凹槽的部分为凸起定位,所述传感器基板固装于所述前壳的后端基板安装件上, 所述传感器基板的后端连接件向后布置,所述后壳的凸起定位嵌装于所述前壳的内凹槽内、并通过激光穿透式焊接连接、形成闭合焊缝,所述传感器基板、后端连接件位于后壳盖合于前壳后的安装腔内。An on-vehicle camera for penetration welding of a metal laser front shell, characterized in that it includes a front shell, a rear shell and a sensor substrate, the front shell and the rear shell are made of metal, and the front end of the front shell is fixedly provided A front convex lens, an inner groove is provided on the outer periphery of the rear end surface of the side convex end of the front case for positioning the rear case, the front end face of the side convex end corresponding to the inner groove is flat, and the rear case The part facing the inner groove is positioned by protrusions, the sensor substrate is fixed on the rear-end substrate mounting member of the front case, the rear-end connector of the sensor substrate is arranged rearward, and the rear case The convex positioning is embedded in the inner groove of the front case, and is connected by laser penetration welding to form a closed welding seam. The sensor substrate and the rear end connector are located behind the rear case cover and the front case. Cavity.
进一步特征在于:Further features are:
所述后壳的后端面设置有后凸外接接口,所述后壳盖装于所述前壳时、所述后端连接件定位插装于所述后凸外接接口内,使得传感器基板的数据方便通过线路传输至外部;The rear surface of the rear shell is provided with a rear convex external interface. When the rear shell cover is installed in the front shell, the rear end connector is positioned and inserted into the rear convex external interface, so that the data of the sensor substrate Convenient transmission to the outside through the line;
所述激光穿透式焊接通过侧凸端的前端面传递光的热能至凸起定位环、内凹环槽的互相接触面;The laser penetration welding transmits the thermal energy of light through the front end surface of the side convex end to the mutual contact surface of the convex positioning ring and the inner concave ring groove;
所述侧凸端的厚度为0.4mm~2mm,确保激光穿透焊的有效可靠进行。The thickness of the side convex end is 0.4 mm to 2 mm, which ensures effective and reliable laser penetration welding.
采用本发明后,通过激光穿透焊将前壳、后壳焊接在一起,不需增加额外的防水部件,彻底隔绝外界水分进入本体内部,由于前壳、后壳均为金属材质,其整体的散热性能好,且可屏蔽外部的电磁干扰。After adopting the invention, the front shell and the rear shell are welded together by laser penetration welding without adding additional waterproof parts to completely isolate the external moisture from entering the body. Since the front shell and the rear shell are made of metal, the overall Good heat dissipation performance, and can shield external electromagnetic interference.
附图说明BRIEF DESCRIPTION
图1为本发明的主视剖视结构示意简图;1 is a schematic diagram of the front sectional view of the present invention;
图中序号所对应的名称如下:The names corresponding to the serial numbers in the figure are as follows:
前壳1、后壳2、传感器基板3、前凸镜头4、侧凸端5、前端面51、内凹槽6、凸起定位7、后端基板安装件8、后端连接件9、安装腔10、后凸外接接口11。Front case 1, rear case 2, sensor substrate 3, front convex lens 4, side convex end 5, front end surface 51, inner groove 6, convex positioning 7, rear substrate mounting member 8, rear connector 9, installation Cavity 10, rear convex external interface 11.
具体实施方式detailed description
一种金属激光前壳穿透式焊接的车载摄像头,见图1:其包括前壳1、后壳2、传感器基板3,前壳1、后壳2均为金属材质,前壳1的前端固设有前 凸镜头4,前壳1的用于定位后壳2的侧凸端5的后端面的外周设置内凹槽6,侧凸端5的对应于内凹槽6的前端面51为平面,后壳2的朝向内凹槽6的部分为凸起定位7,传感器基板3固装于前壳1的后端基板安装件8上,传感器基板3的后端连接件9向后布置,后壳2的凸起定位7嵌装于前壳1的内凹槽6内、并通过激光穿透式焊接连接、形成闭合焊缝,传感器基板3、后端连接件9位于后壳2盖合于前壳1后的安装腔10内。A metal laser front shell penetration welding vehicle camera, see Figure 1: It includes a front shell 1, a rear shell 2, a sensor substrate 3, the front shell 1, the rear shell 2 are made of metal material, the front end of the front shell 1 is fixed The front convex lens 4 is provided. The outer periphery of the rear end surface of the side convex end 5 of the front case 1 for positioning the rear case 2 is provided with an inner groove 6. The front end surface 51 of the side convex end 5 corresponding to the inner groove 6 is flat , The part of the rear housing 2 facing the inner groove 6 is the convex positioning 7, the sensor substrate 3 is fixed on the rear substrate mounting member 8 of the front housing 1, and the rear connector 9 of the sensor substrate 3 is arranged rearward. The convex positioning 7 of the shell 2 is embedded in the inner groove 6 of the front shell 1, and is connected by laser penetration welding to form a closed weld. The sensor substrate 3 and the rear connector 9 are located on the rear shell 2 and closed Inside the installation cavity 10 behind the front shell 1.
后壳2的后端面设置有后凸外接接口11,后壳2盖装于前壳1时、后端连接件9定位插装于后凸外接接口11内,使得传感器基板3的数据方便通过线路传输至外部;The rear surface of the rear shell 2 is provided with a rear convex external interface 11, when the rear shell 2 is mounted on the front shell 1, the rear connector 9 is positioned and inserted into the rear convex external interface 11, so that the data of the sensor substrate 3 can be easily passed through the circuit Transfer to the outside;
激光穿透式焊接通过侧凸端5的前端面51传递光的热能至凸起定位7、内凹槽6的互相接触面;Laser penetration welding transmits the thermal energy of light through the front end surface 51 of the side convex end 5 to the mutual contact surface of the convex positioning 7 and the inner groove 6;
侧凸端5的厚度为0.4mm~2mm,确保激光穿透焊的有效可靠进行。The thickness of the side convex end 5 is 0.4 mm to 2 mm, which ensures effective and reliable laser penetration welding.
通过激光穿透焊将前壳、后壳焊接在一起,不需增加额外的防水部件,彻底隔绝外界水分进入本体内部,由于前壳、后壳均为金属材质,其整体的散热性能好,且可屏蔽外部的电磁干扰。Weld the front and back shells together by laser penetration welding without adding additional waterproof parts to completely isolate the external moisture from entering the body. Since the front and back shells are made of metal, the overall heat dissipation performance is good, and Can shield external electromagnetic interference.
以上对本发明的具体实施例进行了详细说明,但内容仅为本发明创造的较佳实施例,不能被认为用于限定本发明创造的实施范围。凡依本发明创造申请范围所作的均等变化与改进等,均应仍归属于本专利涵盖范围之内。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 (4)

  1. 一种金属激光前壳穿透式焊接的车载摄像头,其特征在于:其包括前壳、后壳、传感器基板,所述前壳、后壳均为金属材质,所述前壳的前端固设有前凸镜头,所述前壳的用于定位后壳的侧凸端的后端面的外周设置内凹槽,所述侧凸端的对应于所述内凹槽的前端面为平面,所述后壳的朝向所述内凹槽的部分为凸起定位,所述传感器基板固装于所述前壳的后端基板安装件上,所述传感器基板的后端连接件向后布置,所述后壳的凸起定位嵌装于所述前壳的内凹槽内、并通过激光穿透式焊接连接、形成闭合焊缝,所述传感器基板、后端连接件位于后壳盖合于前壳后的安装腔内。An on-vehicle camera for penetration welding of a metal laser front shell, characterized in that it includes a front shell, a rear shell and a sensor substrate, the front shell and the rear shell are made of metal, and the front end of the front shell is fixedly provided A front convex lens, an inner groove is provided on the outer periphery of the rear end surface of the side convex end of the front case for positioning the rear case, the front end face of the side convex end corresponding to the inner groove is flat, and the rear case The part facing the inner groove is positioned convexly, and the sensor substrate is fixedly mounted on the rear-end substrate mounting part of the front case, the rear-end connector of the sensor substrate is arranged rearward, and the rear case The convex positioning is embedded in the inner groove of the front case, and is connected by laser penetration welding to form a closed welding seam, and the sensor substrate and the rear end connector are located behind the rear case cover and the front case are installed Cavity.
  2. 如权利要求1所述的一种金属激光前壳穿透式焊接的车载摄像头,其特征在于:所述后壳的后端面设置有后凸外接接口,所述后壳盖装于所述前壳时、所述后端连接件定位插装于所述后凸外接接口内,使得传感器基板的数据方便通过线路传输至外部。The vehicle-mounted camera for penetration welding of a metal laser front shell according to claim 1, wherein a rear convex external interface is provided on the rear end surface of the rear shell, and the rear shell cover is mounted on the front shell At this time, the back-end connector is positioned and inserted into the external connection of the rear convex, so that the data of the sensor substrate is conveniently transmitted to the outside through the line.
  3. 如权利要求1所述的一种金属激光前壳穿透式焊接的车载摄像头,其特征在于:所述激光穿透式焊接通过侧凸端的前端面传递光的热能至凸起定位环、内凹环槽的互相接触面。The on-vehicle camera of the metal laser front shell penetration welding according to claim 1, wherein the laser penetration welding transmits the thermal energy of light to the convex positioning ring and the concave through the front end surface of the side convex end The contact surfaces of the ring grooves.
  4. 如权利要求3所述的一种金属激光前壳穿透式焊接的车载摄像头,其特征在于:所述侧凸端的厚度为0.4mm~2mm。The on-vehicle camera for penetration welding of a metal laser front shell according to claim 3, wherein the thickness of the side convex end is 0.4 mm to 2 mm.
PCT/CN2019/119038 2018-12-25 2019-11-17 Vehicle-mounted camera with metal front shell welded by laser in penetrating manner WO2020134694A1 (en)

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CN108401099A (en) * 2018-05-24 2018-08-14 苏州智华汽车电子有限公司 A kind of vehicle-mounted camera
CN109413320A (en) * 2018-12-25 2019-03-01 苏州智华汽车电子有限公司 A kind of vehicle-mounted camera of metal laser front housing penetration welding

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