Radar safety guard

A radar protective cover and protective layer technology, which is applied to the radiation unit cover and other directions, can solve the problems of low surface brightness, insufficient corrosion resistance, affecting the service life of the radar protective cover, etc. The effect of the service life

Active Publication Date: 2014-11-05
HUZHOU TIAHE AUTOMOBILE PART
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although the molded articles described in the above patents have little transmission loss and can provide the desired appearance, the use of these molded articles as radar shields in radar systems has some disadvantages such as insufficient corrosion resistance, long-term exposure to ultraviolet light It makes the product discolored and the surface brightness of the product is low, which will affect the service life of the radar shield

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A radar protective cover with a thickness of 5 mm is composed of a polycarbonate base and a transparent polycarbonate front cover 1 connected with the polycarbonate base through an adhesive, and is composed of figure 1 As shown, the side of the transparent polycarbonate front cover 1 facing away from the radar 0 is sequentially provided with a topcoat layer 2 with a thickness of 5 μm, and the side of the transparent polycarbonate front cover 1 facing the radar 0 is sequentially provided with a thickness of 5 μm. A primer layer 3 with a thickness of 5 μm, a hot stamping black film layer 4 with a thickness of 0.1 μm, a vacuum-plated nano-metal layer 5 with a thickness of 0.1 μm, and a paint protective layer 6 with a thickness of 5 μm. Among them, the vacuum-plated nano-metal layer 5 and the paint protection layer 6 both have a radar penetration attenuation of no more than 0.2dB. The paint protection layer 6 is an acrylic polyurethane coating with a thickness of 5 μm, whic...

Embodiment 2

[0027] A radar protective cover with a thickness of 7.5 mm is composed of a polycarbonate base and a transparent polycarbonate front cover 1 connected with the polycarbonate base through secondary injection molding. figure 1As shown, the side of the transparent polycarbonate front cover 1 facing away from the radar 0 is provided with a topcoat layer 2 with a thickness of 25 μm, and the side of the transparent polycarbonate front cover 1 facing the radar 0 is sequentially provided with a layer of 25 μm in thickness. A primer layer 3 with a thickness of 25 μm, a printed color film layer 4 with a thickness of 1 μm, a vacuum-plated nano-metal layer 5 with a thickness of 1 μm, and a paint protection layer 6 with a thickness of 25 μm, wherein the vacuum-plated nano-metal layer 5 and the paint protection layer 6 have No more than 0.2dB radar back and forth penetration attenuation. The paint protection layer 6 is mainly used to protect the nano-metal layer 5 and make the protective co...

Embodiment 3

[0029] A radar protective cover with a thickness of 5 mm is composed of a polycarbonate base and a transparent polycarbonate front cover 1 connected with the polycarbonate base through secondary injection molding. figure 1 As shown, the side of the transparent polycarbonate front cover 1 facing away from the radar 0 is provided with a topcoat layer 2 with a thickness of 15 μm, and the side of the transparent polycarbonate front cover 1 facing the radar 0 is sequentially provided with a layer of 15 μm in thickness. A primer layer 3 of 15 μm, a printed color film layer 4 with a thickness of 0.5 μm, a vacuum-plated nano-metal layer 5 with a thickness of 0.5 μm, and a paint protection layer 6 with a thickness of 10 μm, wherein the vacuum-plated nano-metal layer 5 and paint protection layer 6 It has no more than 0.2dB radar penetration attenuation back and forth. The coating protection layer 6 is mainly used to protect the nano-metal layer 5 and make the protective cover resistant ...

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Abstract

The invention discloses a radar safety guard, belonging to the surface technical field. The radar safety guard comprises a polycarbonate base. The radar safety guard is characterized by further comprising a transparent polycarbonate front cover connected with the polycarbonate base, one side of the transparent polycarbonate front cover, facing a radar, is sequentially provided with a primer layer, a colored layer, a vacuum plated nano metallic layer and a painting protective layer from inside to outside, and each of the vacuum plated nano metallic layer and the painting protective layer both has electromagnetic wave back-and-forth penetration attenuation being not more than 0.2dB. The radar safety guard is excellent in corrosion resistance, has very low wave back-and-forth penetration attenuation, and can be adapted to the reliability of the attenuation when the loading position is in a certain range of three-dimensional directions.

Description

technical field [0001] The invention relates to a radar protective cover suitable for a radar system of a motor vehicle. Background technique [0002] Automotive radars are radars used in automobiles or other ground motor vehicles. It includes a variety of different radars based on different technologies (such as laser, ultrasonic, microwave, millimeter wave) with different functions (such as detecting obstacles, predicting collisions, adaptive cruise control). The specific purposes and structures of various radars are different, but the basic form is the same, including: transmitter, transmitting antenna, receiver, receiving antenna, processing part and display, as well as power supply equipment, data recording equipment, anti-jamming equipment and other auxiliary equipment. The principle is that the transmitter of the radar equipment shoots the electromagnetic wave energy to a certain direction in space through the antenna, and the objects in this direction reflect the e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/42
Inventor 钱庙根朱锡善徐震宇
Owner HUZHOU TIAHE AUTOMOBILE PART
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