WO2020134693A1 - 一种塑胶激光前壳穿透式焊接的车载摄像头 - Google Patents

一种塑胶激光前壳穿透式焊接的车载摄像头 Download PDF

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WO2020134693A1
WO2020134693A1 PCT/CN2019/119037 CN2019119037W WO2020134693A1 WO 2020134693 A1 WO2020134693 A1 WO 2020134693A1 CN 2019119037 W CN2019119037 W CN 2019119037W WO 2020134693 A1 WO2020134693 A1 WO 2020134693A1
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Prior art keywords
shell
substrate
convex
front shell
base plate
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PCT/CN2019/119037
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English (en)
French (fr)
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王亚军
张小勇
增田悟
廖大生
黄晓竹
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苏州智华汽车电子有限公司
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Publication of WO2020134693A1 publication Critical patent/WO2020134693A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/51—Housings

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  • the invention relates to the technical field of vehicle-mounted cameras, in particular to a vehicle-mounted camera with plastic laser front shell penetrating welding.
  • 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 plastic laser front shell penetration welding vehicle camera, the front shell and the rear shell are welded together, no additional waterproof components are needed, and the external moisture is completely blocked from entering the body.
  • a plastic laser front shell penetration welding vehicle camera characterized in that it includes a front shell, a rear shell, a first substrate, and a second substrate, the front shell and the rear shell are made of plastic material, and the front shell
  • the front end of the front housing is fixed with a front convex lens
  • the outer periphery of the rear end surface of the side convex end of the front housing for positioning the rear housing is provided with an inner groove
  • the front end surface of the side convex end corresponding to the inner groove is flat
  • the portion of the rear shell facing the inner groove is positioned convexly
  • the first substrate is fixed on a rear substrate mounting piece of the front shell
  • the second substrate is fixed on the rear shell
  • the first rear connector of the first substrate is connected to the front end slot of the second substrate
  • the protrusion of the rear case is positioned and embedded in the recess of the front case
  • the groove is connected by laser penetrating welding to form a closed weld.
  • the first base plate, the first rear connector, the second base plate, and the front end slot are located in the installation cavity behind the rear shell cover and the front shell
  • the inner wall surface of the front shell and the rear shell corresponding to the area where the installation cavity is located is covered with a metal layer.
  • the first rear connector is inserted and positioned in the front end slot of the second substrate, the rear end surface of the rear case is provided with a rear convex external interface, and the rear case cover is installed on the front case,
  • the second back-end connector of the second substrate is positioned and inserted in the front end of the rear convex external interface, so that the data of the second substrate is easily transmitted to the outside through the line;
  • the rear convex external interface is located at the center position of the rear plate of the rear shell, ensuring convenient installation of the joint;
  • 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 and the internal groove;
  • the thickness of the side convex end is 0.4mm-2mm, which ensures the effective and reliable laser penetration welding;
  • the outer peripheral surface of the rear-end substrate mounting member is arranged in close contact with the inner peripheral surface of the front convex stop of the rear case.
  • the inner peripheral wall of the convex positioning of the rear case is the inner peripheral surface of the front convex stop.
  • the inner peripheral surface of the inner groove is the front end portion of the outer peripheral surface of the rear-end substrate mounting member, making the entire structure simple and convenient to manufacture;
  • the metal layer of the inner wall of the front shell extends to the inner peripheral surface of the front convex stop
  • the metal layer of the inner wall of the rear shell extends to the entire outer peripheral surface of the rear-end substrate mounting member
  • the Corresponding metal layers corresponding to the inner peripheral surface of the front convex stopper are attached to each other to form a closed metal layer connected to each other, shielding the internal and external electromagnetic interference;
  • the metal layer is specifically coated on the corresponding inner walls of the front shell and the rear shell by sputtering.
  • 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.
  • the front shell and the rear shell are made of plastic materials.
  • the inner wall surface of the shell corresponding to the area where the installation cavity is located is covered with a metal layer, and the heat generated by the first substrate and the second substrate is quickly transmitted to the rear shell and the front shell through the metal layer, the overall heat dissipation performance is good, and the metal
  • the arrangement of layers can shield external electromagnetic interference.
  • FIG. 1 is a schematic diagram of the front sectional view of the present invention.
  • the mounting member 10 the first rear connector 11, the front end slot 12, the installation cavity 13, the metal layer 14, the rear convex external interface 15, the second rear connector 16, and the inner peripheral surface 17 of the front convex stopper.
  • a plastic laser front-vehicle through-welding vehicle camera see Figure 1: It includes a front case 1, a rear case 2, a first substrate 3, a second substrate 4, the front case 1, the rear case 2 are made of plastic material, A front convex lens 5 is fixed at the front end of the front case 1, an inner groove 7 is provided on the outer periphery of the rear end surface of the side convex end 6 of the front case 1 for positioning the rear case 2, and the side convex end 6 corresponds to the inner groove 7
  • the front end surface 61 is a flat surface, and the portion of the rear shell 2 facing the inner groove 7 is the convex positioning 8, the first substrate 3 is fixed on the rear substrate mounting member 9 of the front shell 1, and the second substrate 4 is fixed on On the corresponding substrate mounting member 10 of the rear case 2, the first rear connector 11 of the first substrate 3 is connected to the front end slot 12 of the second substrate 4, and the convex positioning 8 of the rear case 2 is embedded in the front case 1
  • the inner groove 7 is connected by laser penetr
  • the first base plate 3, the first rear connector 11, the second base plate 4, and the front end slot 12 are located in the rear case 2 In the mounting cavity 13 behind the front shell 1, the inner wall surface of the front shell 1 and the rear shell 2 corresponding to the area where the mounting cavity 13 is located is covered with a metal layer 14.
  • the first rear connector 11 is inserted and positioned in the front end slot 12 of the second substrate 4.
  • the rear surface of the rear case 2 is provided with a rear convex external interface 15.
  • the second substrate The second back-end connector 16 of 4 is positioned and inserted in the front end of the rear convex external interface 15, so that the data of the second substrate 4 is conveniently transmitted to the outside through the line;
  • the rear convex external interface 15 is located at the center of the rear plate of the rear case 2 to ensure easy installation of the joint;
  • Laser penetration welding transmits the thermal energy of light through the front end surface 61 of the side convex end 6 to the mutual contact surface of the convex positioning 8 and the inner groove 7;
  • the thickness of the side convex end 6 is 0.4mm ⁇ 2mm, to ensure the effective and reliable laser penetration welding;
  • the outer peripheral surface of the rear-end substrate mounting member 9 is placed close to the inner peripheral surface 17 of the front convex stop of the rear shell 2, and the inner peripheral wall of the convex positioning 8 of the rear housing 2 is the inner peripheral surface 17 of the front convex stop, which is concave
  • the inner peripheral surface of the groove 7 is the front end portion of the outer ring surface of the rear substrate mounting member 9, making the whole structure simple and convenient to manufacture;
  • the metal layer of the inner wall of the front shell 1 extends to the inner peripheral surface 17 of the front convex stop
  • the metal layer of the inner wall of the rear shell 2 extends to the entire outer annular surface of the rear substrate mounting member 9, corresponding to the front shell 1 and the rear shell 2
  • Corresponding metal layers on the inner peripheral surface 17 of the front convex stopper are attached to each other to form a closed metal layer connected to each other, shielding the internal and external electromagnetic interference;
  • the metal layer 14 is specifically coated on the corresponding inner walls of the front case 1 and the rear case 2 by sputtering.
  • the plastic shell of the car camera is sealed and waterproof by laser welding.
  • the laser is welded through the plastic front case (lens side) and the plastic rear case (harness side).
  • the inner walls of the plastic front and rear shells are sputtered with metal layers and combined together to form a closed space.
  • Both the front and back shells are made of plastic, and the front and back shells correspond to the installation cavity
  • the inner wall surface of the area where the surface is located is covered with a metal layer.
  • the heat generated by the first substrate and the second substrate is quickly conducted to the rear shell and the front shell through the metal layer.
  • the overall heat dissipation performance is good, and the metal layer can be shielded. External electromagnetic interference.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)

Abstract

本发明提供了一种塑胶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。其包括前壳、后壳、第一基板、第二基板，所述前壳、后壳均为塑料材质，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，所述第一基板固装于所述前壳的后端基板安装件上，所述第二基板固装于所述后壳的对应基板安装件上，所述第一基板的第一后端连接件连接于所述第二基板的前端插槽内。

Description

一种塑胶激光前壳穿透式焊接的车载摄像头 技术领域
本发明涉及车载摄像头的技术领域，具体为一种塑胶激光前壳穿透式焊接的车载摄像头。
背景技术
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。
发明内容
针对上述问题，本发明提供了一种塑胶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。
一种塑胶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、第一基板、第二基板，所述前壳、后壳均为塑料材质，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，所述第一基板固装于所述前壳的后端基板安 装件上，所述第二基板固装于所述后壳的对应基板安装件上，所述第一基板的第一后端连接件连接于所述第二基板的前端插槽内，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，所述第一基板、第一后端连接件、第二基板、前端插槽位于后壳盖合于前壳后的安装腔内，所述前壳、后壳对应于安装腔所在的面域的内壁表面覆合有金属层。
进一步特征在于：
所述第一后端连接件插装定位于所述第二基板的前端插槽内，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、所述第二基板的第二后端连接件定位插装于所述后凸外接接口的前端内，使得第二基板的数据方便通过线路传输至外部；
所述后凸外接接口位于所述后壳的后板的中心位置，确保接头的方便安装；
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、内凹槽的互相接触面；
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；
所述后端基板安装件的外周面紧贴所述后壳的前凸止挡内周面布置，所述后壳的凸起定位的内周壁即为所述前凸止挡内周面，所述内凹槽的内周面即为所述后端基板安装件的外周面的前端部分，使得整个结构制作简单方便；
所述前壳的内壁的金属层延伸至前凸止挡内周面，所述后壳的内壁的金属层延伸至所述后端基板安装件的整个外周面，所述前壳、后壳的对应于前凸止挡内周面的对应的金属层互相贴合形成相互连接的封闭金属层，屏蔽内 外部的电磁干扰；
所述金属层具体通过溅镀覆合于所述前壳、后壳的对应内壁上。
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，前壳、后壳均为塑料材质，前壳、后壳对应于安装腔所在的面域的内壁表面覆合有金属层，第一基板、第二基板所产生的热量经过金属层加快传导至后壳、前壳，其整体的散热性能好，且金属层的设置可屏蔽外部的电磁干扰。
附图说明
图1为本发明的主视剖视结构示意简图；
图中序号所对应的名称如下：
前壳1、后壳2、第一基板3、第二基板4、前凸镜头5、侧凸端6、内凹槽7、前端面61、凸起定位8、后端基板安装件9、基板安装件10、第一后端连接件11、前端插槽12、安装腔13、金属层14、后凸外接接口15、第二后端连接件16、前凸止挡内周面17。
具体实施方式
一种塑胶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、第一基板3、第二基板4，前壳1、后壳2均为塑料材质，前壳1的前端固设有前凸镜头5，前壳1的用于定位后壳2的侧凸端6的后端面的外周设置内凹槽7，侧凸端6的对应于内凹槽7的前端面61为平面，后壳2的朝向内凹槽7的部分为凸起定位8，第一基板3固装于前壳1的后端基板安装件9上，第二基板4固装于后壳2的对应基板安装件10上，第一基板3的第一后端连接件11连接于第二基板4的前端插槽12内，后壳2的凸起定位8嵌装 于前壳1的内凹槽7内、并通过激光穿透式焊接连接、形成闭合焊缝，第一基板3、第一后端连接件11、第二基板4、前端插槽12位于后壳2盖合于前壳1后的安装腔13内，前壳1、后壳2对应于安装腔13所在的面域的内壁表面覆合有金属层14。
第一后端连接件11插装定位于第二基板4的前端插槽12内，后壳2的后端面设置有后凸外接接口15，后壳2盖装于前壳1时、第二基板4的第二后端连接件16定位插装于后凸外接接口15的前端内，使得第二基板4的数据方便通过线路传输至外部；
后凸外接接口15位于后壳2的后板的中心位置，确保接头的方便安装；
激光穿透式焊接通过侧凸端6的前端面61传递光的热能至凸起定位8、内凹槽7的互相接触面；
侧凸端6的厚度为0.4mm～2mm，确保激光穿透焊的有效可靠进行；
后端基板安装件9的外周面紧贴后壳2的前凸止挡内周面布17置，后壳2的凸起定位8的内周壁即为前凸止挡内周面17，内凹槽7的内周面即为后端基板安装件9的外环面的前端部分，使得整个结构制作简单方便；
前壳1的内壁的金属层延伸至前凸止挡内周面17，后壳2的内壁的金属层延伸至后端基板安装件9的整个外环面，前壳1、后壳2的对应于前凸止挡内周面17的对应的金属层互相贴合形成相互连接的封闭金属层，屏蔽内外部的电磁干扰；
金属层14具体通过溅镀覆合于前壳1、后壳2的对应内壁上。
其有益效果如下：
1、车载摄像头塑胶壳体通过激光透过焊接的方式达到密封防水的目的。
2、激光透过塑胶前壳(镜头侧)与塑胶后壳(线束侧)焊接在一起。
3、塑胶前后壳内壁溅镀金属层，并且结合在一起，形成封闭的空间。
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，前壳、后壳均为塑料材质，前壳、后壳对应于安装腔所在的面域的内壁表面覆合有金属层，第一基板、第二基板所产生的热量经过金属层加快传导至后壳、前壳，其整体的散热性能好，且金属层的设置可屏蔽外部的电磁干扰。
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。

Claims (8)

  1. 一种塑胶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、第一基板、第二基板，所述前壳、后壳均为塑料材质，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，所述第一基板固装于所述前壳的后端基板安装件上，所述第二基板固装于所述后壳的对应基板安装件上，所述第一基板的第一后端连接件连接于所述第二基板的前端插槽内，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，所述第一基板、第一后端连接件、第二基板、前端插槽位于后壳盖合于前壳后的安装腔内，所述前壳、后壳对应于安装腔所在的面域的内壁表面覆合有金属层。
  2. 如权利要求1所述的一种塑胶激光前壳穿透式焊接的车载摄像头，其特征在于：所述第一后端连接件插装定位于所述第二基板的前端插槽内，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、所述第二基板的第二后端连接件定位插装于所述后凸外接接口的前端内。
  3. 如权利要求2所述的一种塑胶激光前壳穿透式焊接的车载摄像头，其特征在于：所述后凸外接接口位于所述后壳的后板的中心位置。
  4. 如权利要求1所述的一种塑胶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、内凹槽的互相接触面。
  5. 如权利要求1所述的一种塑胶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。
  6. 如权利要求1所述的一种塑胶激光前壳穿透式焊接的车载摄像头，其特征在于：所述后端基板安装件的外周面紧贴所述后壳的前凸止挡内周面布置，所述后壳的凸起定位的内周壁即为所述前凸止挡内周面，所述内凹槽的内周面即为所述后端基板安装件的外周面的前端部分。
  7. 如权利要求6所述的一种塑胶激光前壳穿透式焊接的车载摄像头，其特征在于：所述前壳的内壁的金属层延伸至前凸止挡内周面，所述后壳的内壁的金属层延伸至所述后端基板安装件的整个外周面，所述前壳、后壳的对应于前凸止挡内周面的对应的金属层互相贴合形成相互连接的封闭金属层。
  8. 如权利要求1或7所述的一种塑胶激光前壳穿透式焊接的车载摄像头，其特征在于：所述金属层具体通过溅镀覆合于所述前壳、后壳的对应内壁上。
PCT/CN2019/119037 2018-12-25 2019-11-17 一种塑胶激光前壳穿透式焊接的车载摄像头 WO2020134693A1 (zh)

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