Structure for overcoming defect of coating fat edge of radar hole of bumper skin

Abstract

The utility model relates to the field of bumper skin, in particular to a structure for overcoming the defect of fat edge coating of a radar hole of the bumper skin, which comprises the bumper skin, a radar mounting hole is arranged on the bumper skin, and a radar support profiling part is arranged on the outer side wall of the bumper skin and positioned at the edge of the radar mounting hole. And the inner side wall of the bumper skin is provided with a flanging structure at the edge of the radar mounting hole. And a plane part is arranged on the flanging structure. A paint layer is arranged on the outer surface of the bumper skin. According to the structure for overcoming the defect of the coating fat edge of the bumper skin radar hole, the coating qualification rate is increased, and the manufacturing cost is reduced; the exposed part of the radar support is omitted, the coating process of the independent exposed part of the radar support is omitted, and the cost of the support is reduced. The investment of punching equipment is saved, and the part cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of bumper surfaces, in particular to a structure for solving the defect of fat edges in coating of radar holes on bumper surfaces. Background Art

[0002] Typically, the functional requirements of a car bumper parking radar determine the position and angle of the radar on the bumper, which often deviates from the overall bumper surface. In this case, the radar bracket that fixes the radar is usually designed to be exposed. The exposed part smoothly connects the bumper surface and the radar plane, meeting the radar function while ensuring an aesthetically pleasing appearance. As shown in the figure:

[0003] Under normal circumstances, if the radar is not standard, that is, only high-end cars are equipped with parking radar, and low-end cars do not have radar, the bumper surface is divided into two states: with radar holes and without radar holes. These two states are achieved through punching, that is, the surface injection molding is in a state without holes, and the surface where the radar needs to be installed is achieved through punching.

[0004] However, some cars include parking radar as standard equipment. In this case, in order to reduce costs and eliminate the need for punching equipment, the car manufacturer requires only one perforated configuration on the surface.

[0005] The existing solution is to realize the hole for assembling the radar bracket by injection molding. The disadvantages of the existing technology are:

[0006] Because the surface hole matches the radar bracket, in order to ensure a beautiful appearance, the fillet around the hole is small, only R0.35mm. Also, because the hole surface is almost a large plane, paint accumulation after the surface is painted appears "fat edge" phenomenon.

[0007] There is no structure or shape around the surface holes, which will produce defects such as pressure lines and weld marks after injection molding, which are particularly obvious after painting.

[0008] Therefore, it is necessary to provide a structure to solve the fat edge defect of the bumper surface radar hole coating to solve the above technical problems. Utility Model Content

[0009] In order to solve the above technical problems, the utility model provides a structure for solving the defect of fat edges of the radar hole coating on the bumper surface.

[0010] The utility model provides a structure for solving the defect of fat edges of the radar hole paint on the bumper skin, including the bumper skin, the bumper skin is provided with a radar mounting hole, the outer wall of the bumper skin is provided with a radar bracket profiling portion at the edge of the radar mounting hole, and the inner wall of the bumper skin is provided with a flange structure at the edge of the radar mounting hole.

[0011] Preferably, the flange structure is provided with a planar portion.

[0012] Preferably, the outer surface of the bumper skin is provided with a paint layer.

[0013] Compared with the related art, the present invention has the following beneficial effects:

[0014] 1. Improve the coating qualification rate and reduce manufacturing costs;

[0015] 2. The radar bracket itself has no exposed part, eliminating the need for painting the exposed part of the radar bracket, thus reducing the bracket cost;

[0016] 3. Save investment in punching equipment and reduce parts costs.

[0017] 4. The contoured part of the radar bracket is integrated into the skin, eliminating the matching seam between the radar bracket and the skin, making the appearance more refined while reducing the difficulty of installing the radar bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the existing bumper skin structure;

[0019] Figure 2 for Figure 1 Enlarged schematic diagram of the middle AA section;

[0020] Figure 3 This is a schematic diagram of the bumper skin structure of the present utility model;

[0021] Figure 4 for Figure 3 Enlarged schematic diagram of the middle BB section.

[0022] Numbers in the figure: 1, bumper surface; 11, radar mounting hole; 12, radar bracket profiling part; 13, flange structure; 131, flat part. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0024] Please refer to Figures 1 to 4 A structure for solving the defect of fat edges of the radar hole paint on the bumper skin includes a bumper skin 1, a radar mounting hole 11 is provided on the bumper skin 1, a radar bracket profiling portion 12 is provided on the outer wall of the bumper skin 1 at the edge of the radar mounting hole 11, and a flange structure 13 is provided on the inner wall of the bumper skin 1 at the edge of the radar mounting hole 11.

[0025] The flange structure 13 is provided with a flat surface portion 131 to facilitate contact and cooperation with the radar, thereby making the radar installation more stable.

[0026] The outer surface of the bumper skin 1 is provided with a paint layer, which is more aesthetically pleasing and protects the bumper skin 1 .

[0027] By integrating the exposed part of the radar bracket on the bumper skin 1 (i.e., providing a radar bracket profiling portion 12), due to the sudden change in shape of the exposed part of the radar bracket profiling portion 12 and the addition of a flange structure 13 on the back of the bumper skin 1, after painting, the paint will not sag or accumulate compared to a large flat surface; injection molding defects will also be alleviated due to changes in the flange structure, and the sudden change in shape will also subjectively weaken the injection molding and painting defects, thereby solving the appearance defects such as fat edges of the radar hole in the bumper skin 1 after injection molding and painting.

[0028] When the radar is actually installed, the radar is installed from the back of the bumper skin 1 to the radar mounting hole 11, without the need for a radar bracket, and the flat portion 131 is well in contact with the radar. Compared to existing mounting holes, this radar mounting hole 11 is smaller.

[0029] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A structure for solving the problem of thick edge of the bumper surface radar hole coating, characterized in that: The invention comprises a bumper skin (1), wherein the bumper skin (1) is provided with a radar mounting hole (11), an outer wall of the bumper skin (1) is provided with a radar bracket imitation portion (12) at the edge of the radar mounting hole (11), and an inner wall of the bumper skin (1) is provided with a flange structure (13) at the edge of the radar mounting hole (11).

2. The structure for solving the fat edge defect of the bumper surface radar hole coating according to claim 1 is characterized in that: The flange structure (13) is provided with a plane portion (131).

3. The structure for solving the problem of thick edge of the bumper surface radar hole coating according to claim 1 is characterized in that: The outer surface of the bumper skin (1) is provided with a paint layer.

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