Verification device and operation method of anti-fog performance for vehicle lamp design

Abstract

The invention relates to anti-fog performance verifying device for a car lamp design, and an operating method therefor. Two side sliding plates are inserted on side walls of a groove in a sealing manner, thereby enabling the groove to be divided into a lower high-humidity groove and an upper low-humidity groove. There is a ventilated gap delta h between the two side sliding plates, and a lamp bulb and a humidity sensor are disposed on the lower high-humidity groove and above the liquid level. An induction head of the humidity sensor is located exactly below a closing position of the two side sliding plates. The interior of the low-humidity groove is provided with a lifting plate, and the height spacing of the lifting plate and the two side sliding plates is delta x. An elastic sealing pad which is disposed in the low-humidity groove achieves the sealing of the two side sliding plates, the lifting plate and the inner wall of the low-humidity groove, and is used for supporting the lifting plate. According to the invention, a spacing between a lampshade and a decorative ring is preset in a simulation design scheme in a car lamp design process, and the device verifies the impact on the anti-fog performance of the car lamp, thereby achieving the prevention and control of a fogging problem of the car lamp at the phase of car lamp design.

Description

technical field [0001] The invention relates to a device for verifying the anti-fog performance of vehicle lamp design and an operation method thereof, belonging to the technical field of motor vehicle lamps. Background technique [0002] At present, most automobile lights use light bulbs as light sources, and the lamp housings, lampshades, and reflectors are all made of plastic materials, so they have the characteristics of low cost and light weight. However, when the car lights are working, a large amount of heat will be generated after the light source is turned on. If the heat cannot be dealt with in a timely and effective manner, it will affect the service life and performance of the surrounding components. When the temperature difference between the inside and outside of the lamp is large, coupled with the uneven heat and cold inside the lamp, fog will be generated around the lampshade, especially the lower part, and the fogging of the car lamp will not only affect the...

AI Technical Summary

Problems solved by technology

However, when the car lights are working, a large amount of heat will be generated after the light source is lit. If the heat cannot be dealt with in a timely and effective manner, it will affect the service life and performance of the surrounding parts.

When the temperature difference between the inside and outside of the lamp is large, coupled with the uneven heat and cold inside the lamp, fog will be generated around the lampshade, especially the lower part, and the fogging of the car lamp will not only affect the appearance of the lamp, but also reduce the lighting quality of the lamp. Driving poses a safety hazard

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