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Automotive lamp module and lighting unit with LED lighting element

A technology of LED lighting and lighting units, which is applied in the direction of vehicle lighting systems, components of lighting devices, semiconductor devices of light-emitting elements, etc., can solve the problems of increased working temperature, reduced lighting output, and reduced working life, and achieves a simple and efficient structure. The effect of a compact, compact design

Active Publication Date: 2009-06-10
LUMILEDS HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the heat generated by such LED lighting elements is not properly dissipated, the operating temperature of such LED lighting elements can rise to levels that reduce lighting output and operating life

Method used

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  • Automotive lamp module and lighting unit with LED lighting element
  • Automotive lamp module and lighting unit with LED lighting element
  • Automotive lamp module and lighting unit with LED lighting element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] figure 1 A lamp module 10 is shown. The lamp module 10 includes a module body 12 with a protruding plug housing 14, a locking portion 16 for locking the lamp module 10 within the reflector, and an LED lighting element 18.

[0034] as in figure 2 with Figure 4 As shown in the exploded view in , the LED modules 10 are assembled in a stacked manner. The module body 12 has a substantially circular cross-section, thus defining a central axis A, which will be described in detail below. The top of the main body 12 is also centered on the axis A, and the LED lighting element 18 is located on the top of the main body 12 . The LED element 18 includes an LED 20 for generating light and a side emitter reflector 22 (see Figure 5 ), the side emitting reflector 22 is used to reflect the generated light so as to guide the generated light in a radial direction with the central axis A, which will be performed in the positioning of the lamp module 10 in the reflector It is clear ...

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PUM

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Abstract

A lamp module (10) comprises an LED lighting element (18) and an electronic driver circuit (42) for supplying electrical power to the LED element (18). An electrical connector (14) is connected to the electronic driver circuit (42). A bayonet coupling (16) is provided for positioning and locking the module (10) within a reflector (70). A metallic heat sink (30) with a top wall (34a, 34b, 34c) and a side wall (36a, 36b, 36c) has an inner cavity (40), where the electronic driver circuit (42) is located. The LED element (18) is located at the top wall (34)a in direct thermal contact to the heat sink (30). A lighting unit comprises the above-described lamp module (10) and a reflector (70) with a mounting cavity (74). The module (10) is mounted within the cavity (74), so that the light emitted from the LED (18) is reflected by a reflector surface (72) of the reflector (70).

Description

technical field [0001] The invention relates to lamp modules comprising LED lighting elements and lighting units comprising these lamp modules, especially for automotive use. Background technique [0002] Light emitting diodes (LEDs) are well suited for automotive applications due to their good efficiency and long operating life. However, standard packaging of LEDs is not sufficient to provide safe and precise positioning and cannot provide easy replacement and electrical connection for various automotive lighting applications such as automotive headlights, tail lights, and turn signals. Lamp modules have been proposed which comprise one or more LED lighting elements. The modules are replaceable at the reflector and means are provided for positioning and locking the modules at such a reflector, as well as appropriate electrical connectors (eg plugs). [0003] Especially when using high power LEDs (high power LEDs are understood in the present invention to mean single LED l...

Claims

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Application Information

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IPC IPC(8): F21K7/00F21V29/00F21K99/00F21V29/505H01L33/48H01L33/60H01L33/64
CPCF21S48/328F21K9/00F21V29/2275F21V29/004F21Y2101/02F21V29/80F21Y2115/10F21V23/006F21S41/143F21S45/48F21K9/20B60Q1/00F21V29/89F21V29/70F21V7/0008
Inventor H·威尔沃尔R·H·彼得斯P·J·威斯科克
Owner LUMILEDS HLDG BV
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