Cover for a radar sensor for motor vehicles

Patent metadata

Field	Value
Publication number	US-10629984-B2
Application number	US-201916412631-A
Country	US
Kind code	B2
Filing date	May 15, 2019
Priority date	Oct 17, 2013
Publication date	Apr 21, 2020
Grant date	Apr 21, 2020

Abstract

A cover for a radar sensor for motor vehicles, which has a wall provided with a three-dimensional relief structure, in which the wall including the relief structure is made of deep-drawn glass.

First claim

What is claimed is:

1. A method for producing a cover, the method comprising:
reshaping a blank of flexible glass into a relief structure, wherein the blank forms a supporting substrate of the cover;
wherein the cover is for a radar sensor for the motor vehicle, and includes a wall provided with a three-dimensional relief structure having multiple depressions and/or projections, the wall having the three-dimensional glass relief structure being made of deep-drawn glass, which is a reshaped flexible glass sheet,
wherein a composition of the deep-drawn glass provides high transparency to high-frequency radar waves,
wherein the high frequency radar waves are about 77 GHz, and
wherein corner edges of the relief structure are rounded at least on the outwardly pointing side in relation to the radar sensor.

2. The method of claim 1 , wherein the relief structure is imprinted and/or metallized on at least one side.

3. The method of claim 1 , wherein a plastic layer is applied on one side of the blank with the aid of the injection-embossing method.

4. The method of claim 1 , wherein a filler layer from a transparent casting compound which cures by cross-linking is formed on one side of the blank in the reaction-injection molding method.

5. The method of claim 1 , wherein a filler layer from a transparent casting compound which cures by cross-linking is formed on one side of the blank, which is on a blank and non-metallized side, in the reaction-injection molding method.

6. The method of claim 1 , wherein a plastic layer is applied on one side of the blank, which is on the imprinted and/or metallized side, with the aid of the injection-embossing method.

7. The method of claim 1 , wherein the relief structure is imprinted on at least one side.

8. The method of claim 7 , wherein the wall of deep-drawn glass has a continuous metallization layer on the imprinted side, which covers the imprinting.

9. The method of claim 1 , wherein the relief structure is metallized on at least one side.

10. The method of claim 1 , wherein a plastic layer is applied on at least one side of the wall of deep-drawn glass.

11. The method of claim 10 , wherein the plastic layer forms a frame for the edge of the wall of deep-drawn glass.

12. The method of claim 10 , wherein the plastic layer forms at least one mount for fastening the cover to a body shell part.

13. The method of claim 1 , wherein a transparent filler layer is applied on one side of the wall of deep-drawn glass.

14. The method of claim 13 , wherein the filler layer forms a continuous planar surface, which is provided with a scratch-proof enamel layer.

15. The method of claim 1 , wherein a transparent filler layer is applied on one side of the wall of deep-drawn glass, the one side being a blank and non-metallized side.

Assignees

• Bosch Gmbh Robert

Inventors

• Geise Stephan

Classifications

• H01Q1/422

  comprising two or more layers of dielectric material (H01Q1/425 takes precedence) · CPC title

• B29C2045/14237

  the inserts being deformed or preformed outside the mould or mould cavity · CPC title

• C03B21/02

  by cutting (C03B9/46 takes precedence) · CPC title

• C03B40/005

  Fabrics, felts or loose covers · CPC title

• H01Q1/3233 Primary

  particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems · CPC title