Vehicle lamp

Abstract

A vehicle lamp (10) comprises:-a light guide (100),-a cover lens (200) having an active section (210) for the light guide to illuminate an environment outside the vehicle lamp, and an opaque section (220) defining the active section,-a holder (300) for holding the light guide, comprising a front side (300a) facing the active section of the cover lens, the holder being mounted on the cover lens, the holder comprises at least one heating wire (500) embedded within the holder, the heating wire being configured to heat the active section of the cover lens, the holder being mounted on the opaque section allowing the at least one heating wire to heat the active section of the cover lens, at least a portion of the front side of the holder being arranged at a distance from the active section of the cover lens, and an air gap (AG) is formed, so that condensed water evaporated by at least one heating wire can be removed.

Description

Technical Field

[0001] The present invention relates to a vehicle lamp, in particular a vehicle headlight or a vehicle taillight, wherein the vehicle lamp comprises:

[0002] - a light guide for emitting light in a main direction,

[0003] - a cover lens having:

[0004] an active section for the light guide to illuminate the environment outside the vehicle lamp, wherein the active section has an inwardly facing side and a side opposite to the inwardly facing side, which is exposed to the environment outside the vehicle when the lamp is correctly installed in the vehicle,

[0005] - an opaque section which delimits the active section,

[0006] a holder for holding the light guide in a predetermined position in the vehicle lamp, wherein the holder comprises a front side facing the active section of the cover lens so that light emitted by the light guide can pass through the active section of the cover lens to illuminate the environment outside the vehicle lamp,

[0007] The retaining member is mounted on the opaque section of the cover lens via a fixing device.

[0008] Furthermore, the invention relates to a vehicle comprising at least one vehicle light according to the invention. Background Art

[0009] Condensation may occur in the vehicle lamp due to a temperature difference between the interior of the vehicle lamp and the external temperature outside the vehicle lamp.

[0010] Condensed water on the inner surface of the cover lens, in particular on the active surface, affects the overall brightness of the light emitted by the light guide and changes the visual appearance of the light distribution. Summary of the Invention

[0011] An object of the present invention is to provide an improved vehicle lamp.

[0012] To achieve this object, the holder includes at least one heating wire embedded in the holder, wherein the heating wire is configured to heat the active section of the cover lens, wherein the holder is mounted on the opaque section in a manner allowing the at least one heating wire to heat the active section of the cover lens, and wherein at least a portion of the front side of the holder is arranged at a distance from the active section of the cover lens, thereby forming an air gap so that condensed water formed between the active section and the front side of the holder can be removed by evaporating the condensed water with the help of the at least one heating wire.

[0013] In other words, the condensed water is removed due to evaporation, which means that water is converted from a liquid state to a gaseous state.

[0014] The vehicle lamp can also be an auxiliary external lamp - for example, a part of the front grille or the radiator grille of the vehicle.

[0015] Advantageously, the light guide is made of an optical fiber with a diameter of 2 - 3 mm.

[0016] Advantageously, the air gap has a width of 0.1 to 3 mm from the acting section to the front side of the holding member, preferably 1 / 3 or 1 / 4 of the diameter of the light guide.

[0017] Advantageously, the acting section of the cover lens is formed of at least partially transparent material.

[0018] Advantageously, the cover lens is made by a 2K injection molding process.

[0019] Advantageously, the holding member is mounted on the opaque section of the cover lens by a threaded connection.

[0020] Advantageously, the vehicle lamp includes a housing, and the housing and the cover lens together define the vehicle lamp. Thus, an internal space is formed in which the holding member and the light guide are arranged.

[0021] Advantageously, the vehicle lamp is a vehicle tail lamp.

[0022] Advantageously, the vehicle lamp includes two or more heating wires.

[0023] Advantageously, in a state where the vehicle lamp is correctly installed in the vehicle, when viewed from the front side of the holding member, the holding member includes an upper side portion and a lower side portion, the upper side portion is located above the light guide, and the lower side portion is located below the light guide.

[0024] Advantageously, the upper side portion is in mechanical contact with the cover lens.

[0025] Advantageously, at least one heating wire is arranged in the upper side portion of the holding member.

[0026] Advantageously, another heating wire is provided in the lower side portion of the holding member.

[0027] Advantageously, when viewed from the opposite direction of the main direction, the at least one heating wire is arranged behind the light guide.

[0028] This object is also achieved by a vehicle including at least one vehicle lamp according to the present invention. Description of the Drawings

[0029] In the following, to further illustrate the present invention, illustrative and non-limiting embodiments are discussed, as shown in the accompanying drawings, which show:

[0030] Figure 1 is an example of a vehicle lamp according to the present invention, wherein the vehicle lamp includes a holder, a cover lens, a light guide member mounted in the holder, and a heating wire embedded in the holder to heat the cover lens.

[0031] List of reference numerals

[0032] Vehicle lamp 10

[0033] Light guide member 100

[0034] Cover lens 200

[0035] Operation section 210

[0036] Inner side 210a

[0037] Outer side 210b

[0038] Opaque section 220

[0039] Holder 300

[0040] Front side 300a

[0041] Upper side portion 310a

[0042] Lower side portion 320a

[0043] Fixing device 400

[0044] Heating wire 500

[0045] Main direction X. Detailed description

[0046] Figure 1 shows a part of the vehicle lamp 10, in particular a vehicle headlamp or a vehicle taillight, wherein the vehicle lamp 10 includes a light guide member 100 for emitting light in the main direction X and a cover lens 200.

[0047] The cover lens 200 has an active section 210 for the light guide 100 to illuminate the environment outside the vehicle lamp 10. The active section 210 has an inner side 210a and an outer side 210b opposite to the inner side. In the state where the lamp is correctly installed in the vehicle, the outer side 210b is exposed to the environment outside the vehicle. Further, the cover lens 200 includes an opaque section 220 that defines the active section 210. The active section 210 of the cover lens 200 is formed of at least partially transparent material. The cover lens 200 is generally made by a 2K injection molding process.

[0048] Further, the vehicle lamp 10 includes a holder 300 for holding the light guide 100 in a predetermined position in the vehicle lamp 10. The holder 300 includes a front side 300a facing the active section 210 of the cover lens 200 or the inner side 210a of the cover lens 200, such that the light emitted by the light guide 100 can pass through the active section of the cover lens 200 to illuminate the environment outside the vehicle lamp 10.

[0049] In the state where the vehicle lamp 10 is correctly installed in the vehicle, when viewed from the front side 300a of the holder 300, the holder 300 includes an upper side portion 310a and a lower side portion 320a. The upper side portion 310a is located above the light guide 100, and the lower side portion 320a is located below the light guide 100.

[0050] The holder 300 is mounted on the opaque section 220 of the cover lens 200 by a screw connection. In the example shown in the figure, the upper side portion 310a is in mechanical contact with the cover lens 200.

[0051] Further, the holder 300 includes a heating wire 500 embedded therein. The heating wire 500 is configured to heat the active section 210 of the cover lens 200. The holder 300 is mounted on the opaque section 220 in a manner that allows the heating wire 500 to heat the active section 210 of the cover lens 200. At least a part of the front side 300a of the holder 300 is arranged at a certain distance from the active section 210 of the cover lens 200, thereby forming an air gap AG, so that the condensed water formed between the active section 210 and the front side 300a of the holder 300 can be removed by evaporation by means of the at least one heating wire 500.

[0052] In the illustrated example, a heating wire 500 is disposed in an upper side portion 310a of a holder 300 near a cover lens 200. Another heating wire 500 is disposed in a lower side portion 320a of the holder 300. When viewed from a direction opposite to the main direction X, another heating wire 500 is disposed behind a light guide 100.

[0053] The illustrated exemplary vehicle lamp 10 includes a housing (not shown in the figures), the housing defining the vehicle lamp 10 in combination with a cover lens 200 and forming an internal space in which a holder 300 and a light guide 100 are disposed.

[0054] Furthermore, the illustrated example of the vehicle lamp 10 is a vehicle tail lamp.

Claims

1. A vehicle lamp (10), in particular a vehicle headlamp or a vehicle tail lamp, wherein, The vehicle lamp (10) includes: - A light guide (100) for emitting light in a main direction (X), - A cover lens (200) having: - An acting section (210) for the light guide (100) to illuminate the environment outside the vehicle lamp (10), wherein the acting section (210) has an inward-facing side (210a) and an outward-facing side (210b) opposite to the inward-facing side, and the outward-facing side (210b) is exposed to the environment outside the vehicle in a state where the lamp is correctly installed in the vehicle, - An opaque section (220) defining the acting section (210), - A holder (300) for holding the light guide (100) in a predetermined position in the vehicle lamp (10), wherein the holder (300) includes a front side (300a) facing the acting section (210) of the cover lens (200), such that the light emitted by the light guide (100) can pass through the acting section (210) of the cover lens (200) to illuminate the environment outside the vehicle lamp (10), wherein the holder (300) is mounted on the opaque section (220) of the cover lens (200) by a fixing device (400), characterized in that the holder (300) includes at least one heating wire (500) embedded therein, and the heating wire (500) is configured to heat the acting section (210) of the cover lens (200), wherein the holder (300) is mounted on the opaque section (220) in a manner allowing the at least one heating wire (500) to heat the acting section (210) of the cover lens (200), wherein at least a part of the front side (300a) of the holder (300) is arranged at a distance from the acting section (210) of the cover lens (200) to form an air gap (AG) so as to be able to remove the condensed water formed between the acting section (210) and the front side (300a) of the holder (300) by evaporation by means of the at least one heating wire (500).

2. The vehicle lamp according to claim 1, wherein, The acting section (210) of the cover lens (200) is formed of at least partially transparent material.

3. The vehicle lamp according to any one of the preceding claims, wherein, The cover lens (200) is made by a 2K injection molding process.

4. The vehicle lamp according to any one of the preceding claims, wherein, The holder (300) is mounted on the opaque section (220) of the cover lens (200) by a screw connection.

5. The vehicle lamp according to any one of the preceding claims, wherein, The vehicle lamp (10) includes a housing that, in combination with the cover lens (200), defines the vehicle lamp (10).

6. The vehicle lamp according to any one of the preceding claims, wherein, The vehicle lamp (10) is a vehicle tail lamp.

7. A vehicle lamp according to any one of the preceding claims, wherein, The vehicle lamp (10) includes two or more heating wires (500).

8. The vehicle lamp according to any one of the preceding claims, wherein, In a state where the vehicle lamp (10) is correctly installed in a vehicle, when viewed from the front side surface (300a) of the holder (300), the holder (300) includes an upper side portion (310a) and a lower side portion (320a), the upper side portion (310a) being located above the light guide member (100), and the lower side portion (320a) being located below the light guide member (100).

9. The vehicle lamp according to claim 8, wherein, The upper side portion (310a) is in mechanical contact with the cover lens (200).

10. The vehicle lamp according to claim 8 or 9, wherein, The at least one heating wire (500) is disposed in the upper side portion (310a) of the holder (300).

11. The vehicle lamp according to claim 10, wherein, Another heating wire (500) is provided in the lower side portion (320a) of the holder (300).

12. The vehicle lamp according to any one of the preceding claims, wherein, When viewed from the opposite direction of the main direction (X), the at least one heating wire (500) is provided behind the light guide member (100).

13. A vehicle, comprising at least one vehicle lamp (10) according to any one of the preceding claims.

Images