Automobile front bumper camera assembly structure
Through innovative design of the camera and welding bracket, combined with flexible structure and handheld tooling, the problems of increased cost and appearance defects in existing technologies have been solved, realizing low-cost and reliable assembly of automotive front bumper cameras.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU XINQUAN ZHIHE AUTOMOBILE EXTERIOR DECORATION SYSTEM CO LTD
- Filing Date
- 2025-07-05
- Publication Date
- 2026-06-26
AI Technical Summary
In the existing technology, mounting a camera on the front bumper of a car requires an additional welding bracket, which increases costs, and the positioning rib structure is prone to defects in the injection molding process.
The camera includes a connected optical lens and housing. The welding bracket consists of an outer frame, an inner frame, and a flexible structure. The outer frame and the inner frame are connected by the flexible structure. The camera is fixed to the welding bracket, and a handheld tool is used to assist in positioning, which simplifies the assembly process.
It reduces costs, avoids defects in injection molding, ensures the accuracy and reliability of assembly, and facilitates maintenance.
Smart Images

Figure CN224409125U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts manufacturing and assembly technology, and in particular to the assembly structure of automotive front bumper cameras. Background Technology
[0002] The current technology for mounting cameras on the front bumper of a car requires the addition of a welding bracket as a transition. This involves first connecting the welding bracket to the bumper via piercing welding, and then connecting the camera assembly to the welding bracket with screws. Adding a mold for the welding bracket would increase costs. At the same time, to meet the appearance requirements of uniform gap between the camera and the bumper, positioning ribs are usually placed on the back of the bumper to ensure the relative position of the welding bracket and the bumper. However, the positioning rib structure on the bumper can make the bumper appearance prone to injection molding defects. Utility Model Content
[0003] To address the problems of the prior art, the purpose of this utility model is to provide an assembly structure for a car front bumper camera.
[0004] The technical solution adopted in this utility model is as follows:
[0005] A front bumper camera assembly structure for automobiles includes a skin, a camera, a camera bracket, and a welding bracket. The camera comprises an integrated optical lens and a housing. The skin corresponds to the optical lens of the camera and has a camera aperture. The welding bracket includes an outer frame, an inner frame, and a flexible structure. The inner frame is located below the center of the welding bracket, and the outer frame is located around the inner frame. The outer frame and the inner frame are connected by the flexible structure, which is U-shaped with a width of 4mm-5mm, a height of 5mm-6mm, and a thickness of 0.8mm-1mm. The welding bracket is fixed to the back of the skin by piercing welding. Both the outer and inner frames have multiple welding points located at their edges. The camera housing is fixedly connected to the camera bracket, and the camera bracket is fixedly connected to the inner frame of the welding bracket, such that the camera faces the camera aperture of the inner frame, and its optical lens faces the camera aperture of the skin.
[0006] The device includes a handheld fixture, which is sequentially provided with a membrane positioning step, a skin positioning step, a welding bracket positioning step, and a handheld step connected as one unit. In addition to being coaxial, the membrane positioning step and the welding bracket positioning step have rectangular cross sections, while the skin positioning step and the handheld step have circular cross sections.
[0007] The outer frame and the inner frame are connected by a flexible structure at least in two places.
[0008] The camera is an ADAS forward-facing camera.
[0009] The welded support is fixedly connected to the skin by welding. The length and width of the welded joint of the two structures are 30mm-40mm and 15mm-20mm, respectively. The wall thickness of the welded joint of the skin is greater than 3.2mm.
[0010] This utility model of automotive front bumper camera assembly structure is novel in concept, scientifically designed, rationally structured, reliable and safe in function, durable, and convenient for future maintenance. The handheld tooling used in the assembly of this utility model automotive front bumper camera assembly structure is simple and practical in structure, easy to use, and provides accurate auxiliary positioning during assembly. Attached Figure Description
[0011] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.
[0012] Figure 1 This is a schematic diagram of the assembly structure of the automotive front bumper camera of this utility model;
[0013] Figure 2 for Figure 1 Rear view diagram;
[0014] Figure 3 for Figure 1 A schematic diagram of the AA-direction section;
[0015] Figure 4 for Figure 2 Enlarged schematic diagram of region B;
[0016] Figure 5 This is a schematic diagram of a welding bracket;
[0017] Figure 6 for Figure 5 Enlarged cross-sectional view of region C;
[0018] Figure 7 for Figure 6 DD-direction sectional view;
[0019] Figure 8 This is a schematic diagram of a handheld tool.
[0020] Figure 9 A side sectional view of the handheld tool in use.
[0021] Figure 10 This is an exploded view of the assembly structure components of the automotive front bumper camera of this utility model;
[0022] In the diagram: 1-(Front bumper) skin; 1a-Camera hole; 2-Camera; 3-Camera bracket; 4-Welding bracket; 41-Outer frame; 42-Inner frame; 43-Flexible structure; 5-Handheld tool; 5-Handheld tool; 51-Handheld tool; 52-Handheld tool; 53-Handheld tool; 54-Handheld tool; 6-Welding membrane; 7-Welding point; 8-Screw; h-Height. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described below are merely illustrative of this utility model. Key terms that need attention in these descriptions, including "skin," "camera hole," "flexible structure," "unfolding length," "weakening," "fetal membrane," and "puncture welding," are merely customary names and used for ease of description and simplification; therefore, they should not be construed as limitations on this utility model.
[0024] like Figure 1-3 As shown, the automotive front bumper camera assembly structure of this utility model includes a skin 1, a camera 2, a camera bracket 3, and a welding bracket 4. In this embodiment, the camera 2 is an ADAS forward-looking camera, including an optical lens and a housing connected as one unit. The skin 1 corresponds to the optical lens of the camera 2 and is provided with a camera hole 1a. See [reference needed]. Figure 4-7 As shown, the welding bracket 4 includes an outer frame 41, an inner frame 42, and a flexible structure 43. The inner frame 42 has a camera port corresponding to the camera 2 and is located in the lower middle part of the welding bracket 4. The outer frame 41 is located around the inner frame 42. The outer frame 41 and the inner frame 42 are connected by the flexible structure 43. The flexible structure 43, which is designed to be weakened, is U-shaped. The unfolded length of the U-shape is greater than the straight-line distance between the outer frame 41 and the inner frame 42. Its dimensions are generally: width of 4mm-5mm and height h of 5m. The thickness is 0.8mm-1mm, with a diameter of m-6mm. In this embodiment, the thickness is 0.8mm. The outer frame 41 and inner frame 42 are connected at least twice by a flexible structure 43. The weakened flexible structure 43 ensures that the entire assembly is not easily broken after injection molding. Before welding the outer frame 41 of the welding bracket 4 to the skin 1, during the initial positioning, after the welding and overall positioning of the outer frame 41 are completed, the inner frame 42 can move appropriately relative to the outer frame 41 in all directions for accurate positioning, facilitating position adjustment. See also... Figure 10The welding bracket 4 is fixed to the back side of the skin 1 by piercing welding. Both the outer frame 41 and the inner frame 42 have multiple welding points 7. The welding points 7 are located at the edges of the outer frame 41 and the inner frame 42. For easy disassembly and maintenance, the housing of the camera 2 is fixedly connected to the camera bracket 3 by screws 8. The camera bracket 3 is fixedly connected to the inner frame 42 of the welding bracket 4 by screws 8, so that the camera 2 is directly facing the camera port of the inner frame 42, and its optical lens is directly facing the camera hole 1a of the skin 1.
[0025] To ensure accurate positioning before welding bracket 4 to skin 1, and for the installation and positioning of camera 2, the following steps are required: Figure 8-9 As shown, this utility model uses a handheld tool 5 for auxiliary positioning. The handheld tool 5 is sequentially provided with a membrane positioning step 51, a skin positioning step 52, a welding bracket positioning step 53, and a handheld step 54 connected as one piece. In addition to being coaxial, in this embodiment, for reliable positioning, the membrane positioning step 51 and the welding bracket positioning step 53 (cubic) have rectangular cross-sections, while the skin positioning step 52 and the handheld step 54 (cylindrical) have circular cross-sections.
[0026] The present invention relates to an automotive front bumper camera assembly structure, comprising a skin 1, a camera 2, a camera bracket 3, and a welding bracket 4, and its manufacturing and assembly method includes the following steps:
[0027] A. Injection molding production
[0028] Using an injection molding machine, the skin 1, camera bracket 3 and welding bracket 4 are produced by injection molding respectively. The welding bracket 4 corresponds to the handheld tool 5 and is provided with a rectangular positioning hole. The skin 1 is opened with a camera hole 1a by laser.
[0029] B. Production
[0030] To perform puncture welding and positioning on the welding bracket 4 and the skin 1, a welding membrane 6 is made. The welding membrane 6 corresponds to the handheld tool 5 and is provided with a rectangular positioning hole.
[0031] C. Purchased from outside
[0032] The camera 2 is an externally purchased ADAS forward-viewing camera;
[0033] D. Assembly
[0034] Its assembly process is as follows:
[0035] a. Positioning
[0036] See Figure 9-10 As shown, using the handheld tool 5 of this utility model, the welding bracket 4, the skin 1 and the welding membrane 6 are positioned sequentially before welding through the positioning holes of the welding bracket 4, the skin 1 and the welding membrane 6.
[0037] b. Welding
[0038] The welding bracket 4 is welded to the skin 1 using a piercing welding process. The welding point 7 is arranged at the edge of the outer frame 41 and inner frame 42 of the welding bracket 4. The length and width of the welding point 7 of the welding connection structure are 30mm-40mm and 15mm-20mm, respectively. The wall thickness of the welding point 7 of the skin 1 is greater than 3.2mm.
[0039] d. Assembly
[0040] The camera housing 2 is fixed to the camera bracket 3 by screw 8, and then the camera bracket 3 is fixed to the inner frame 42 of the welding bracket 4 by screw 8, so that the camera 2 is aligned with the camera port of the inner frame 42 and the center of the optical lens of the camera 2 is aligned with the camera hole 1a on the surface.
[0041] E. Painting and loading
[0042] a. paint
[0043] First, paint the outer skin 1 with a color that matches the vehicle being fitted;
[0044] b. Loading
[0045] The front-end fixed connection, the painted skin 1, the welded bracket 4, the camera bracket 3 and the camera 2 are fixedly installed on the car as a whole (set).
[0046] The above description is only a general embodiment of this utility model. For those skilled in the art, there are various other embodiments with modifications and variations, which will not be elaborated here. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model are included within the protection scope claimed by this utility model.
Claims
1. A front bumper camera assembly structure for automobiles, comprising a skin (1), a camera (2), a camera bracket (3), and a welding bracket (4), characterized in that, The camera (2) includes an optical lens and a housing connected as one unit. The skin (1) corresponds to the optical lens of the camera (2) and is provided with a camera hole (1a). The welding bracket (4) includes an outer frame (41), an inner frame (42), and a flexible structure (43). The inner frame (42) is located at the lower center of the welding bracket (4). The outer frame (41) is located around the inner frame (42). The outer frame (41) and the inner frame (42) are connected by the flexible structure (43). The flexible structure (43) is U-shaped, with a width of 4mm-5mm and a height (h) of 5m. The thickness is 0.8mm-1mm. The welding bracket (4) is fixed to the back of the skin (1) by piercing welding. Both the outer frame (41) and the inner frame (42) have multiple welding points (7). The welding points (7) are located at the edges of the outer frame (41) and the inner frame (42). The housing of the camera (2) is fixedly connected to the camera bracket (3). The camera bracket (3) is fixedly connected to the inner frame (42) of the welding bracket (4), so that the camera (2) is directly facing the camera port of the inner frame (42), and its optical lens is directly facing the camera hole (1a) of the skin (1).
2. The automotive front bumper camera assembly structure according to claim 1, characterized in that, The device includes a handheld fixture (5), which is provided with a membrane positioning step (51), a skin positioning step (52), a welding bracket positioning step (53), and a handheld step (54) connected together in sequence. In addition to being coaxial, the membrane positioning step (51) and the welding bracket positioning step (53) have rectangular cross sections, while the skin positioning step (52) and the handheld step (54) have circular cross sections.
3. The automotive front bumper camera assembly structure according to claim 1, characterized in that, The outer frame (41) and the inner frame (42) are connected by a flexible structure (43) at least in two places.
4. The automotive front bumper camera assembly structure according to claim 1, characterized in that, The camera (2) is an ADAS forward-facing camera.
5. The automotive front bumper camera assembly structure according to claim 1, characterized in that, The welding bracket (4) is fixed to the back side of the skin (1) by puncture welding. The length and width of the welding point (7) of the welding connection structure are 30mm-40mm and 15mm-20mm respectively. The wall thickness of the welding point (7) of the skin (1) is greater than 3.2mm.