HEADLIGHT

• US 20160169497A1
• Filed: 12/15/2015
• Published: 06/16/2016
• Est. Priority Date: 12/16/2014
• Status: Active Grant

• Current Assignee: PO Lighting Czech SRO
• Original Assignee: Varroc Lighting Systems S.R.O. (Varroc Engineering Limited)
• Inventors: Hasa, Ondrej, Grof, Jan, Macicek, Milos, Kratochvil, Jan, Klimicek, Stanislav
• Granted Patent: US 9,797,569 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60Q 1/06 adjustable, e.g. remotely-controlled from inside vehicle B60Q1/05 takes precedence
• CPC Class Codes: F21S 41/151 arranged in one or more lines
• CPC Class Codes: F21S 41/26 Elongated lenses
• CPC Class Codes: F21S 45/43 using gas
• CPC Class Codes: F21S 45/49 Attachment of the cooling means

Abstract

A headlight, especially a motor vehicle headlight, comprises a bushing (1) with a translucent cover (2) forming an inner chamber (3) including a light source (4), an optical system (5) for guiding the light beam from the light source, a cooling body having the light source mounted thereon and fitted with cooling elements (61) to extract heat from the heat source, and a cooling channel (7) for passage of the cooling media for heat extraction from the cooling elements. The cooling channel is closed with respect to the chamber to prevent the cooling media from passing through the chamber outside the cooling channel The body forms the wall of a part of the cooling channel, and the cooling elements face the inner space of the cooling channel. The part of the cooling channel whose wall comprises the cooling body is arranged in a controlled movable way in the inner chamber.

Claims

1. A headlight, especially a motor vehicle headlight, comprising a bushing (1) with a translucent cover (2) forming the inner chamber (3), inside the chamber (3) a light source (4), an optical system (5) for guiding the light beam from the light source (4), a cooling body (6), the light source (4) being mounted on the side of the cooling body (6) that faces the inner chamber (3), the cooling body (6) being fitted with cooling elements (61) to extract heat from the heat source (4), and a cooling channel (7) for passage of the cooling media for heat extraction from the cooling elements (61), wherein the cooling channel (7) is closed with respect to the chamber (3) to prevent the cooling media from passing through the chamber (3) outside the cooling channel (7), the body (6) forms the wall of a part of the cooling channel (7), the cooling elements (61) of the cooling body (6) face the inner space of the cooling channel (7) and the said part of the cooling channel (7) whose wall comprises the cooling body (6) is arranged in a controlled movable way in the inner chamber (3).

2. The headlight according to claim 1, wherein the said part of the cooling channel (7) whose wall comprises the cooling body (6) is arranged in the inner chamber (3) in a sliding way in the direction of the first axis (α

), which is the longitudinal axis of this part of the cooling channel (7).

3. The headlight according to claim 1, wherein the said part of the cooling channel (7) whose wall comprises the cooling body (6) is arranged in the inner chamber (3) in a rotary way around the first axis (α

), which is the longitudinal axis of this part of the cooling channel (7).

4. The headlight according to claim 3, wherein the said part of the cooling channel (7) whose wall comprises the cooling body (6) is arranged in a rotary way around the second axis (β

, δ

), which is the longitudinal axis of another part of the cooling channel (7).

5. The headlight according to claim 1, wherein the cooling channel (7) is fitted with cylindrical free ends (71, 72) mounted with sealing in a rotary and/or sliding way in the walls (11, 12) of the bushing (1) of the inner chamber (3).

6. The headlight according to claim 1, wherein the cooling channel (7) is equipped with a fan (79) for forced streaming of cooling media.

7. The headlight according to claim 1, wherein the cooling body (6) is mounted in the cooling channel (7) in a removable way.

8. The headlight according to claim 6, wherein the cooling body (6) is fitted with cooling elements (61) comprising a system of fins reaching into the stream of cooling media flowing through the cooling channel (7).