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A car rear position lamp and its multi-light source simultaneous on and off control circuit

A technology for controlling circuits and position lights, which is applied in the field of automotive lights, can solve problems such as difficult to meet light distribution requirements, increase viewing angle pattern, appearance defects, etc., and achieve the effect of being conducive to the design of light distribution and making full use of space

Active Publication Date: 2017-05-03
HASCO VISION TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem that the current car rear position lights are difficult to meet the light distribution requirements when a single light source is working, and it is necessary to increase the viewing angle pattern, resulting in appearance defects

Method used

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  • A car rear position lamp and its multi-light source simultaneous on and off control circuit
  • A car rear position lamp and its multi-light source simultaneous on and off control circuit
  • A car rear position lamp and its multi-light source simultaneous on and off control circuit

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] When the rear position lamp of the automobile works with a single light source, the light distribution is difficult to meet the requirements. In the present invention, a control circuit is arranged in the rear position lamp to control the simultaneous on and off of multiple light sources (generally two bulbs). In this way, there will be no single bulb working, and there is no need to consider the light distribution requirements of a single bulb. It only needs to meet the light distribution requirements when two bulbs work at the same time. Big space to play.

[0039] The control circuit designed in the present invention controls the current flow in the circuit through the potential level of the two triodes, thereby controlling the light bulbs to be turned on and off, and finally realizing the control of multiple light sources b...

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Abstract

The invention relates to a rear position lamp of an automobile and its multi-light source simultaneous on and off control circuit. The control circuit is welded on a metal plate for installing a light source, and includes a PNP triode, an NPN triode and a plurality of diodes. The number of the diodes is equal to the number of light sources, the anode of each diode is connected to the base of the PNP transistor, and the cathode of each diode is connected to each light source one by one; the emitter of the PNP transistor is connected to the power supply terminal , the collector of the PNP transistor is connected to the base of the NPN transistor, the emitter of the NPN transistor is grounded, and the collector of the NPN transistor is connected to the power supply terminal. The present invention realizes the simultaneous on and off control of multiple light sources through the potential level of the triode, which is not only beneficial to the design of light distribution, but also makes the shape have more room for development. Solve the problem that it is difficult to meet the light distribution requirements when a single bulb is working, and it is necessary to increase the viewing angle pattern, which leads to the problem of appearance defects.

Description

technical field [0001] The invention relates to the technical field of automobile lamps, in particular to multi-light source light distribution of a rear position lamp, in particular to a rear position lamp of an automobile and a multi-light source simultaneous on and off control circuit thereof. Background technique [0002] The existing single-lamp multi-light source realizes the light distribution method of the rear position lamp. When the position lamp A and the position lamp B are arranged in the rear position lamp, when the position lamp A works alone, the position lamp B works alone and the position lamp A+ When B is working at the same time, it needs to meet the light distribution requirements. That is to say, when any one bulb is not working, the other working bulb needs to meet the light distribution requirements. Of course, when two bulbs work at the same time, they also need to meet the light distribution requirements. [0003] The following are three situations ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/44H05B45/00
Inventor 沈海军
Owner HASCO VISION TECHNOLOGY CO LTD
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