Vehicle lamp

Patent metadata

Field	Value
Publication number	US-10344941-B2
Application number	US-201615751309-A
Country	US
Kind code	B2
Filing date	Aug 12, 2016
Priority date	Aug 13, 2015
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

Abstract

An embodiment of the present invention relates to a vehicle lamp structure capable of removing condensation from a lens part, in which a heat source is supplied to a heat absorbing part of a thermoelectric module to increase a temperature of a cooling region, together with a temperature of a heat generation part (a heat generation region) of the thermoelectric module, thereby improving limited heat conversion efficiency of the thermoelectric module, and furthermore, a hot current of air and a high-temperature heat source are supplied to a lens part of a head lamp, thereby maximizing dehumidification efficiency in the lamp.

First claim

The invention claimed is:

1. A vehicle lamp comprising:
a lens part;
a bezel part arranged to partially surround a certain distance from the lens part;
a light source module provided on the bezel part, the light source module including a reflective part accommodating a light-emitting device; and
a thermoelectric circulation part configured to provide air passing through a thermoelectric module into a separation space between the bezel part and the lens part,
wherein the thermoelectric module comprises a heating part configured to supply a heat source to a substrate forming a cooling region, the heating part located adjacent to the substrate.

2. The vehicle lamp of claim 1 , wherein the thermoelectric module comprises a plurality of thermoelectric semiconductor devices arranged between a first substrate and a second substrate facing each other,
wherein a heat absorbing part which is a cooling region is provided on the second substrate.

3. The vehicle lamp of claim 2 , wherein the heating part comprises a hot wire which is in contact with the second substrate.

4. The vehicle lamp of claim 2 , wherein one end of the second substrate extends to be in contact with the reflective part of the light source module.

5. The vehicle lamp of claim 4 , wherein one end of a second heat conversion member on the second substrate is in contact with the light source module.

6. The vehicle lamp of claim 4 , further comprising a first heat conversion member arranged on the first substrate.

7. The vehicle lamp of claim 1 , wherein the thermoelectric circulation part comprises a first ventilation module configured to supply air to a first heat conversion member arranged on a first substrate of the thermoelectric module.

8. The vehicle lamp of claim 7 , further comprising a ventilation guide part having one end coupled to one end of the first heat conversion member, and another end communicating with the separation space.

9. The vehicle lamp of claim 8 , further comprising an air channel part provided inside or on a surface of the bezel part,
wherein one end of the air channel part communicates with the ventilation guide part, and another end of the air channel part communicates with the separation space.

10. The vehicle lamp of claim 9 , wherein the air channel part comprises at least one air discharge part provided in a direction of the separation space.

11. The vehicle lamp of claim 10 , wherein the air discharge part is provided on the same horizontal line as edge regions of the lens part.

12. The vehicle lamp of claim 10 , wherein the air discharge part is provided in the form of wedge-shaped holes or the form of slits.

13. The vehicle lamp of claim 9 , further comprising a second ventilation module arranged in the air channel part.

14. The vehicle lamp of claim 1 , wherein a temperature of the air supplied into the separation space varies according to a temperature of a cooling part increased by the heating part.

15. A vehicle lamp comprising:
a lens part;
a bezel part arranged to partially surround a certain distance from the lens part;
a light source module provided on the bezel part, the light source module including a reflective part accommodating a light-emitting device; and
a thermoelectric circulation part configured to provide air passing through a thermoelectric module into a separation space between the bezel part and the lens part,
wherein one end of a substrate forming a cooling region extends to be in contact with the reflective part of the light source module.

16. The vehicle lamp of claim 15 , wherein the thermoelectric module comprises a plurality of thermoelectric semiconductor devices arranged between a first substrate and a second substrate facing each other,
wherein a heat absorbing part which is a cooling region is provided on the second substrate.

17. The vehicle lamp of claim 15 , wherein the thermoelectric circulation part comprises a first ventilation module configured to supply air to a first heat conversion member arranged on a first substrate of the thermoelectric module.

18. The vehicle lamp of claim 17 , further comprising a ventilation guide part having one end coupled to one end of the first heat conversion member, and another end communicating with the separation space.

19. The vehicle lamp of claim 18 , further comprising an air channel part provided inside or on a surface of the bezel part,
wherein one end of the air channel part communicates with the ventilation guide part, and another end of the air channel part communicates with the separation space.

20. The vehicle lamp of claim 19 , wherein the air channel part comprises at least one air discharge part provided in a direction of the separation space.

Assignees

• Lg Innotek Co Ltd

Inventors

• Shin Jong Bae
• Kim In Tae
• Won Boone

Classifications

• F21S45/60

  Heating of lighting devices, e.g. for demisting · CPC title

• F21S45/33 Primary

  specially adapted for headlamps · CPC title

• F21S41/30

  characterised by reflectors · CPC title

• F21S43/00

  Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights · CPC title

• H01L35/30

  Electricity · mapped topic