Vehicle LED signal lamp control module
A signal lamp control and control module technology, applied in the use of semiconductor lamps, electrical equipment components, electrical components, etc., can solve the problems of module instability, inflexibility, high heat loss, etc., to avoid unstable factors, avoid The effect of signal interference and reduced maintenance costs
Inactive Publication Date: 2016-11-16
HASCO VISION TECHNOLOGY CO LTD
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Problems solved by technology
However, there are corresponding problems in these three existing control schemes.
[0004] 1. Resistive drive circuit and linear constant current drive will cause high heat loss due to the use of resistive devices in the load circuit, so that the PCB board will heat up more seriously, resulting in low efficiency
At the same time, when realizing the driving of the left and right lights, these two control schemes often need to be designed repeatedly, which increases the design cost and time cost, and is likely to lead to inconsistency in the design of the left and right lights
[0005] 2. The DCDC signal light control method is connected to the LED circuit board through the wiring harness and connectors, which increases the instability factor
For example, the connection between the connector and the wiring harness will become a risk that affects the work of the module, especially the weak signal is transmitted between the module and the LED circuit board through the wiring harness, which will cause great experimental difficulty in the anti-interference test and increase the design cost. and experimental costs, resulting in the instability of the module in the actual environment
At the same time, due to the use of wire harnesses and connectors to connect with the LED circuit board, the module is limited by the structure of the lamp body and needs to be matched with other parts in size, which is cumbersome and inflexible, which increases the assembly process and labor costs.
Method used
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[0022] specific implementation plan
[0023] The automotive LED signal light control module is mounted on the LED load circuit board by surface welding. The LED load circuit board can be made of all materials such as aluminum substrates and FR4 boards, and this mounting scheme is applicable. The LED signal light control module is not limited by the board material and the number of PCB layers.
[0024] The vehicle LED signal light control module can be figure 1 The bottom surface of the pad is mounted on the circuit board load. figure 1 The arrangement is for illustration only.
[0025] figure 2 The black area 8 on the side of the PCB of the LED signal light control module for CRRC is the position on the side of the PCB corresponding to the pad on the bottom surface. Copper treatment has been performed on the side of the PCB. This treatment can better observe whether the mounting method is soldered well, and improves the welding stability. At the same time, if figure 1 A...
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The invention relates to a vehicle LED signal lamp control module in the field of vehicle LED signal lamp control technologies. The vehicle LED signal lamp control module mainly comprises an LED logic switch control module, an LED constant current control module, a constant voltage control module and a communication control module for signal acquisition and transmission; the vehicle LED signal lamp control module is welded on an LED load circuit board in a surface-mounted manner via a bottom surface welding pad. The vehicle LED signal lamp control module enables stable and reliable connection between the LED signal lamp control module and the LED load circuit board, the vehicle LED signal lamp control module is flexible to operate, and design cost and manpower cost can be saved.
Description
technical field [0001] The invention relates to a vehicle LED signal light control technology, in particular to a realization scheme of a signal light control module and an LED circuit board load system. Background technique [0002] Signal lights play a vital role in car driving. These lights can signal pedestrians and other vehicles when the car is driving, turning, braking, etc. during the day. At the same time, using LED to design lamps can make the light shape more changeable and pleasing to the eye, so LED lamps are also very popular with car owners. Therefore, the control technology based on LED has also been developed rapidly. [0003] At present, there are three main methods of LED drive control schemes: resistive drive circuit, linear constant current drive and DC-DC control mode. However, these three existing control schemes all have corresponding problems. [0004] 1. Resistive drive circuit and linear constant current drive will cause high heat loss due to th...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H05K7/00H05B33/08H05B44/00H05B45/345H05B45/37
CPCH05K7/005H05B45/00Y02B20/30
Inventor尹磊夏盛周晓军
OwnerHASCO VISION TECHNOLOGY CO LTD