Control circuit of automobile welcome lamp and automobile welcome lamp
A technology for controlling circuits and welcome lights, which is applied in the direction of electric lamp circuit layout, circuit layout, energy-saving control technology, etc.
Inactive Publication Date: 2015-10-21
KOSTAL SHANGHAI MANAGEMENT
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- Abstract
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- Application Information
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Problems solved by technology
[0004] The object of the present invention is to provide a control circuit of a car welcome light and a car welcome light, and the purpose is to solve the problem that the existing car welcome lights lose more energy during the daytime
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[0031] Most of the existing welcome lights use LED as the light source to project and display a static logo pattern to the ground. Since the LED light source has a lot of energy loss during the process of projecting the pattern to the ground, the pattern projected during the day cannot be seen clearly. , thereby wasting energy.
[0032] In view of this, the core of this application is to provide a control circuit of a car welcome lamp and a car welcome lamp. By judging the current ambient light brightness, if the current ambient brightness is very high, even if the LED light source is turned on, a welcome pattern is projected. It can’t be seen clearly, so the LED light source cannot be turned on; if the current ambient brightness is low enough to see the welcome pattern projected on the ground, the LED light source can be turned on normally.
[0033] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention wi...
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The invention discloses a control circuit of an automobile welcome lamp and the automobile welcome lamp. The control circuit comprises a first switch unit, a second switch unit and a third switch unit; the fist switch unit is used to detect brightness of current environment light in real time, the first switch unit does not work when the brightness of the current environment light is higher than a preset value, and the first switch unit is conducted when the brightness of the current environment light is lower than the preset value; the second switch unit is used to receive a switch signal which detects a current vehicle door state and which is sent by a controller, the second switch unit does not work when a vehicle door is in a closed state, and the second switch unit is conducted when the vehicle door is in an open state; and the third switch unit is used to start the welcome lamp when the first switch unit and the second switch unit are both at the conducted states. On the premise that cost is not increased, intelligent control for the welcome lamp is achieved, and the energy is greatly saved.
Description
technical field [0001] The invention relates to the technical field of automobile lighting, in particular to a control circuit of an automobile welcome lamp and the automobile welcome lamp. Background technique [0002] The car welcome light is usually installed under the door of the owner and passenger side of the car or in the left and right side exterior mirrors. When the doors on the driver's and passenger's sides are opened, the welcome light device can project the vehicle's logo pattern, text, etc. on the ground. [0003] Most of the existing welcome lights adopt LED as the light source to project and display a static logo pattern to the ground. Due to the use of LED light sources in the process of projecting patterns to the ground during the day, much energy is lost, resulting in a waste of resources. Contents of the invention [0004] The object of the present invention is to provide a control circuit of a car welcome light and the car welcome light, aiming to so...
Claims
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IPC IPC(8): H05B37/02F21S8/10F21V23/04
CPCY02B20/40
Inventor 唐先红高登科
Owner KOSTAL SHANGHAI MANAGEMENT