CN110617455A - 一种汽车灯具中厚壁光导多功能切换的装置 - Google Patents

一种汽车灯具中厚壁光导多功能切换的装置 Download PDF

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Publication number
CN110617455A
CN110617455A CN201911039670.3A CN201911039670A CN110617455A CN 110617455 A CN110617455 A CN 110617455A CN 201911039670 A CN201911039670 A CN 201911039670A CN 110617455 A CN110617455 A CN 110617455A
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China
Prior art keywords
light guide
thick
color led
led
chip
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Pending
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CN201911039670.3A
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English (en)
Inventor
储伟光
郭志强
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DANYANG YISHAN LAMP EQUIPMENTS MANUFACTURE Co Ltd
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DANYANG YISHAN LAMP EQUIPMENTS MANUFACTURE Co Ltd
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Priority to CN201911039670.3A priority Critical patent/CN110617455A/zh
Publication of CN110617455A publication Critical patent/CN110617455A/zh
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/34—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/10—Position lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/20—Direction indicator lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/55—Daytime running lights [DRL]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

本发明公开了一种汽车灯具中厚壁光导多功能切换的装置，包括一条或者多条厚壁光导，厚壁光导的下方或者侧方设置电路板，电路板上设置有单色LED和双色LED，单色LED和双色LED连接LED控制驱动电路，LED控制驱动电路包括驱动芯片，驱动芯片采用罗姆BD18351芯片，罗姆BD18351芯片的EN脚作为使能端连接转向灯驱动信号电路和昼行位置灯驱动信号电路，罗姆BD18351芯片的PWMOUT脚输出PWM信号去驱动MOSFET，MOSFET连接单色LED和双色LED。本发明通过光学设计，电路驱动设计来实现各个功能的相互切换。一体化设计，不仅可以优化灯具内部的结构，还能体现现代灯具的科技感。

Description

一种汽车灯具中厚壁光导多功能切换的装置
技术领域
本发明涉及车灯光学及电子领域，具体涉及一根厚壁光导能实现多种功能（昼行、位置、转向）的切换应用，应用于车辆照明领域。
背景技术
现有汽车前部照明灯具内部一般都含有昼行灯、位置灯、转向灯，这几个功能的灯，在不同环境或者需求下被使用，这三个功能通常是独立存在的。因此需要配置三个独立的灯来实现三种功能，这样灯具内部的结构就较为复杂。
发明内容
本发明的目的是提供一种汽车灯具中厚壁光导多功能切换的装置，能够方便快捷切换昼行、位置、转向灯功能。
一种汽车灯具中厚壁光导多功能切换的装置，包括一条或者多条厚壁光导，厚壁光导的下方或者侧方设置电路板，电路板上设置有单色LED和双色LED，单色LED和双色LED连接LED控制驱动电路，LED控制驱动电路包括驱动芯片，驱动芯片采用罗姆BD18351芯片，罗姆BD18351芯片的EN脚作为使能端连接转向灯驱动信号电路和昼行位置灯驱动信号电路，罗姆BD18351芯片的PWMOUT脚输出PWM信号去驱动MOSFET，MOSFET连接单色LED和双色LED。
所述罗姆BD18351芯片的DCD脚连接开关二极管D1后分两路，一路连接场效应管S1，场效应管S1连接开关二极管D3，另一路连接开关二极管D2。
所述双色LED为昼行位置灯，采用28颗LED颗粒，分两路并联。
所述单色LED为转向灯，采用22颗LED颗粒，分两路并联。
所述厚壁光导上侧设置有光导装饰件。
所述厚壁光导下侧设置有光导安装支架。
所述单色LED和双色LED上设置有散热铝支架。
本发明通过光学设计，电路驱动设计来实现各个功能的相互切换。一体化设计，不仅可以优化灯具内部的结构，还能体现现代灯具的科技感。
附图说明
图1为本发明的结构爆炸图。
图2为本发明的主控制电路图一。
图3为本发明的主控制电路图二。
具体实施方式
如图1、2所示，一种汽车灯具中厚壁光导多功能切换的装置，包括一条或者多条厚壁光导2，厚壁光导2的下方或者侧方设置电路板，电路板上设置有单色LED3和双色LED6，单色LED和双色LED连接LED控制驱动电路，LED控制驱动电路包括驱动芯片，驱动芯片采用罗姆BD18351芯片，罗姆BD18351芯片的EN脚作为使能端连接转向灯驱动信号电路和昼行位置灯驱动信号电路，罗姆BD18351芯片的PWMOUT脚输出PWM信号去驱动MOSFET，MOSFET连接单色LED和双色LED。
所述厚壁光导2上侧设置有光导装饰件1。厚壁光导2下侧设置有光导安装支架5。单色LED和双色LED上设置有散热铝支架4。
如图3，所述罗姆BD18351芯片的DCD脚连接开关二极管D1后分两路，一路连接场效应管S1，场效应管S1连接开关二极管D3，另一路连接开关二极管D2。此处电路主要用于昼行与位置灯信号以及转向灯信号的采集输入。
双色LED采用白色和琥珀色两种颜色，为昼行位置灯，采用28颗LED颗粒，分两路并联，昼行灯功能时为白色，位置灯功能时为琥珀色。
单色LED采用琥珀色，为转向灯，采用22颗LED颗粒，分两路并联。
车辆正常行驶过程中为昼行灯功能，双色LED为显示白色，当需要作出功能切换转变为位置灯，罗姆BD18351芯片的DCD脚作为调光脚位发出调光信号，PWMOUT脚输出PWM信号去驱动MOSFET减少通过双色LED颗粒的电流，双色LED变为琥珀色位置灯。当需要转向的时候，转向灯开启，单色LED亮起琥珀色，转向灯变为琥珀色。

Claims (7)

1.一种汽车灯具中厚壁光导多功能切换的装置，其特征在于，包括一条或者多条厚壁光导，厚壁光导的下方或者侧方设置电路板，电路板上设置有单色LED和双色LED，单色LED和双色LED连接LED控制驱动电路，LED控制驱动电路包括驱动芯片，驱动芯片采用罗姆BD18351芯片，罗姆BD18351芯片的EN脚作为使能端连接转向灯驱动信号电路和昼行位置灯驱动信号电路，罗姆BD18351芯片的PWMOUT脚输出PWM信号去驱动MOSFET，MOSFET连接单色LED和双色LED。
2.根据权利要求1所述的一种汽车灯具中厚壁光导多功能切换的装置，其特征在于，所述罗姆BD18351芯片的DCD脚连接开关二极管D1后分两路，一路连接场效应管S1，场效应管S1连接开关二极管D3，另一路连接开关二极管D2。
3.根据权利要求1所述的一种汽车灯具中厚壁光导多功能切换的装置，其特征在于，所述双色LED为昼行位置灯，采用28颗LED颗粒，分两路并联。
4.根据权利要求1所述的一种汽车灯具中厚壁光导多功能切换的装置，其特征在于，所述单色LED为转向灯，采用22颗LED颗粒，分两路并联。
5.根据权利要求1所述的一种汽车灯具中厚壁光导多功能切换的装置，其特征在于，所述厚壁光导上侧设置有光导装饰件。
6.根据权利要求1所述的一种汽车灯具中厚壁光导多功能切换的装置，其特征在于，所述厚壁光导下侧设置有光导安装支架。
7.根据权利要求1所述的一种汽车灯具中厚壁光导多功能切换的装置，其特征在于，所述单色LED和双色LED上设置有散热铝支架。
CN201911039670.3A 2019-10-29 2019-10-29 一种汽车灯具中厚壁光导多功能切换的装置 Pending CN110617455A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111189033A (zh) * 2020-03-11 2020-05-22 常州星宇车灯股份有限公司 便于装配的车灯组件和具有其的车辆
CN114263888A (zh) * 2020-09-16 2022-04-01 株式会社小糸制作所 灯控制模块、车辆用灯具、信号处理装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111189033A (zh) * 2020-03-11 2020-05-22 常州星宇车灯股份有限公司 便于装配的车灯组件和具有其的车辆
CN111189033B (zh) * 2020-03-11 2023-08-25 常州星宇车灯股份有限公司 便于装配的车灯组件和具有其的车辆
CN114263888A (zh) * 2020-09-16 2022-04-01 株式会社小糸制作所 灯控制模块、车辆用灯具、信号处理装置

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