Radar device, specifically for a vehicle

Patent metadata

Field	Value
Publication number	US-11709223-B2
Application number	US-201916977382-A
Country	US
Kind code	B2
Filing date	Feb 26, 2019
Priority date	Mar 13, 2018
Publication date	Jul 25, 2023
Grant date	Jul 25, 2023

Abstract

A radar device for a vehicle is provided, comprising a housing with a first housing part and a second housing part (2). The housing parts are connected to each other and form the boundaries of a closed recording space. The radar device also includes a circuit carrier accommodated within the recording space. The circuit carrier features at least one transmission antenna device for the transmission of radar beams, at least one receiving antenna device for receiving radar beams, and features high-frequency electronic circuit devices and low-frequency electronic circuit devices. At least one of the first of the two housing parts is a two-component plastic injection-molded parts, and one of the first of the two components has at least a three times higher thermal conductivity than a second one of the two components.

First claim

The invention claimed is:

1. A radar device for a vehicle, the radar device comprising:
a housing with a first housing part and a second housing part, where the first and second housing parts are connected to each other and form boundaries of a closed recording space,
a circuit carrier accommodated within the recording space, where the circuit carrier includes at least one transmission antenna device for the transmission of radar beams and at least one receiving antenna device for receiving radar beams,
wherein the circuit carrier includes high-frequency electronic circuit devices and low-frequency electronic circuit devices,
wherein at least one of the first and second housing parts is a two-component plastic injection-molded part, where a first component of the two-component plastic injection molded part has at least a three times higher thermal conductivity than a second component of the two-component plastic injection molded part, wherein the first component of the two-component plastic injection molded part is surrounded by the second component of the two-component plastic injection molded part.

2. The radar device in accordance with claim 1 , wherein the first component of the two-component plastic injection molded part is coupled to the second component of the two-component plastic injection molded part.

3. The radar device in accordance with claim 1 , wherein the first component of the two-component plastic injection molded part is disk-like which, when viewed from a topside or a bottom is circular, elliptical or oval.

4. The radar device in accordance with claim 3 , wherein one edge of the first component of the two-component plastic injection molded part is thicker than an inner section of the first component of the two-component plastic injection molded part separated off from the edge.

5. The radar device in accordance with claim 2 , wherein the first component of the two-component plastic injection molded part features ribs on one outside surface of the housing.

6. The radar device in accordance with claim 2 , wherein the second component of the two-component plastic injection molded part is laser transparent.

7. The radar device in accordance with claim 1 , wherein the radar device includes, within the recording space, at least one shielding device, where the shielding device shields against electromagnetic radiation.

8. The radar device in accordance with claim 1 , wherein a radar radiation absorption body is arranged within the recording space; and the absorber is formed of a radar-absorbing plastic.

9. The radar device in accordance with claim 1 , wherein at least one of the two housing parts comprises a plug device that is molded in one piece to the housing part.

Assignees

• Hella Gmbh & Co Kgaa

Inventors

• Schulte Michael
• Talhof Michael
• Wallmeier Udo

Classifications

• G01S7/032 Primary

  Constructional details for solid-state radar subsystems · CPC title

• G01S13/931

  of land vehicles · CPC title

• G01S7/028 Primary

  Miniaturisation, e.g. surface mounted device [SMD] packaging or housings · CPC title