Inverted frustum type tunnel lamp

Abstract

The invention discloses an inverted frustum type tunnel lamp which comprises a lamp holder and a lighting unit arranged on the lamp holder, and a heat dissipation interlayer is further arranged between the assembly positions of the lighting unit and the lamp holder. An annular component cavity is formed in the lamp holder, and lamp holder heat dissipation holes are formed in the inner side of the lamp holder containing cavity. The lighting unit comprises a housing and an LED light source, the housing is made of a light-transmitting material, and the housing and the outer contour of the lamp holder form a continuous inverted frustum structure on the outer contour surface; meanwhile, an inner groove in a positive frustum shape is formed in the lower portion of the housing, a lighting unit through hole is formed in the middle of the inner groove, and the bottom face of the lighting unit through hole is buckled and fixed through a buckling support with a negative pressure fan; the inner side of the heat dissipation interlayer is communicated with the lamp holder heat dissipation holes or the lighting unit through hole, and the outer side of the heat dissipation interlayer is communicated with the outer side space of the tunnel lamp. The tunnel lamp has a good heat dissipation effect and a good illumination effect, and the heat dissipation of the lamp can be guaranteed under the condition that the effective utilization rate of light is increased.

Description

technical field [0001] The invention relates to a tunnel lamp in the technical field of lamp lighting, in particular to an inverted cone-type tunnel lamp with both lighting effect and heat dissipation performance. Background technique [0002] With the rapid development of road traffic construction in my country, the construction scale and number of road tunnels are also increasing. In the construction process of some roads, the tunnel scheme has been widely used due to its advantages such as shortening the driving mileage. In the process of entering, passing and exiting the tunnel, the brightness inside and outside the tunnel changes with time, which causes the "black hole effect" or "white hole effect" to lag vision. This "black hole effect" or "white hole effect" "It will hinder the normal driving of the driver, and may even cause traffic accidents in severe cases. [0003] In order to alleviate the above problems, tunnel lights are usually installed in the tunnel to allev...

AI Technical Summary

Problems solved by technology

However, although the LED light source in the prior art has a large irradiation range, if it is not guided by the structure, a large proportion of light loss will occur, and the decrease in lighting effect caused by this light loss also needs to be solved by increasing the power. Therefore, based on the higher lighting requirements in the tunnel, the power of this kind of LED tunnel light is usually higher, which makes the heat dissipation defect of the LED lamp magnified. If the heat dissipation cannot be done well, the heat capacity of the relevant LED components will become smaller, so If some heat is accumulated, the connection temperature of the chip will increase rapidly. If it works at high temperature for a long time, the overall luminous efficiency of LED lamps will be reduced and the lifespan will be shortened. There are also ways to dissipate heat by changing the structure of LED tunnel lights, but this structure is improved. It usually makes the structure of LED tunnel lights more complex and larger, resulting in increased purchase and maintenance costs

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