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LED headlight for vehicles

A technology for headlights and motor vehicles, which is applied to energy-saving lighting, lighting devices, fixed lighting devices, etc. Using the effect of the effect

Inactive Publication Date: 2008-11-19
刘华友
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the utilization rate of electric energy of the existing motor vehicle headlights is not high, the present invention provides a motor vehicle LED headlight, which can solve the problem of the existing motor vehicle headlights on electric energy. The problem of underutilization

Method used

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  • LED headlight for vehicles
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Embodiment Construction

[0019] specific implementation plan

[0020] The structure and electrical system details of the motor vehicle LED headlamp of the present invention will be described below in conjunction with the accompanying drawings and embodiments.

[0021] As shown in Figure 1, the controller (1), mounting base (2), LED (3) and reflector (4) are installed in the lamp housing (5). The LED (3) and the controller (1) are installed on the front and the back of the mounting base (2) respectively. The reflector (4) is installed in front of the LED (3), and the mount (2) doubles as a radiator. In the example, 10 LEDs (3) are connected in parallel.

[0022] In Fig. 2, a power tube is arranged in the power control circuit (B) in the controller (1), and the current control electrode of the power tube is connected with 10 LEDs (3) connected in parallel.

[0023] The current is input to the signal circuit (A) in the controller (1) to generate an oscillating signal with a frequency ≥ 500Hz / S, and ou...

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PUM

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Abstract

A headlight of the prior motor vehicle adopts LEDs but the utilization level of electric energy is low. The LEDs and a controller are arranged in the LED headlight of the prior motor vehicle, power supply and cut-off of the LED are carried out synchronously and alternately by the controller according to the frequency of more than or equal to 24Hz / S so that the LEDs can illuminate synchronously according to the frequency of more than or equal to 24Hz / S, which brings a visual impression that the LEDs illuminate continuously and synchronously. The proposal utilizes current pulse to increase LED luminous intensity, which solves the problem of low utilization rate of electric energy of the prior motor vehicle; and the brightness of the light is enhanced, thereby having better use effect.

Description

technical field [0001] The invention relates to an illumination light source, in particular to a motor vehicle headlamp using LED as a luminous body. Background technique [0002] LEDs have been used in existing motor vehicle headlights, such as "Matrix Cluster LED Car Lamp Search Wick" (Patent Application No.: 200610051069.2) and "LED Car Lamp with Adjustable Light Color and Its Point Light Source" (Patent Application No.: 200510082879.x), these schemes provide continuous power supply to LEDs. This power supply method of motor vehicle headlights does not take corresponding measures to increase the brightness of the light by taking advantage of the "peak detector" efficiency of the human eye for light, so the utilization level of electric energy is not high. Contents of the invention [0003] In order to solve the problem that the utilization rate of electric energy of the existing motor vehicle headlights is not high, the present invention provides a motor vehicle LED he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/12H05B41/36H05B41/14F21W101/10F21Y101/02F21Y115/10
CPCY02B20/202Y02B20/00
Inventor 刘华友
Owner 刘华友