Lighting unit for a motor vehicle

Patent metadata

Field	Value
Publication number	US-9868384-B2
Application number	US-201414513775-A
Country	US
Kind code	B2
Filing date	Oct 14, 2014
Priority date	Oct 18, 2013
Publication date	Jan 16, 2018
Grant date	Jan 16, 2018

Abstract

A device for a motor vehicle with an electronics unit, which is used to control an electric component, and which is arranged on a cooling element for cooling the electronics unit. Provision has been made that the cooling element basically consists of metal and the cooling element encloses the electronics unit in such a way that it results in an electromagnetic shield of the electronics unit.

First claim

The invention claimed is:

1. A device for a motor vehicle comprising:
an electronics unit used for controlling an electric component including an LED;
a cooling element consisting of metal for cooling the electronics unit,
a receiving unit formed as a cavity in the cooling element, the receiving unit having a first end portion and a closed second end portion opposing the first end portion;
a first opening provided in the first end portion arranged in substantial alignment with an emission direction of the LED so that emitted light from the LED penetrates the first opening,
wherein the electronics unit is arranged in the receiving unit,
wherein the cooling element is arranged with respect to the electronics unit and the electric component in such a way that the cooling element acts as an electromagnetic shield for the electronics unit,
wherein the first opening has a maximum diameter of 15 mm, by means of which the cooling element achieves an absorption below 5 GHz.

2. The device according to claim 1 , wherein the receiving unit comprises mounting devices for connecting the receiving unit to the electronics unit.

3. The device according to claim 1 , wherein the cooling element has a second opening and the second opening is closed by means of a locking element, wherein the locking element consists of metal.

4. The device according to claim 1 wherein a locking element is connected to the cooling element with a screw connection.

5. The device according to claim 1 wherein a fluid is filled into the receiving unit, wherein the electronics unit is cooled by means of a convection of the fluid.

Assignees

• Hella Kgaa Hueck & Co

Inventors

• Duhme David
• Kösters Werner
• Studniorz Josef

Classifications

• F21S45/48

  with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device · CPC title

• F21S41/39

  Attachment thereof (achieving variable light distribution by movable reflectors F21S41/675) · CPC title

• F21S41/19

  Attachment of light sources or lamp holders (achieving variable light distribution by movable light sources F21S41/657) · CPC title

• F21S43/14

  Light emitting diodes [LED] · CPC title

• F21S41/141

  Light emitting diodes [LED] · CPC title