LED light-emitting structure and light-emitting spike with same

Abstract

The invention discloses an LED light-emitting structure and a spike with the same. The LED light-emitting structure comprises a transparent shell (1), an LED luminous body (2) with a light condensingelement, a separation body (3) and an air layer (4), the LED luminous body (2) is packaged in the transparent shell (1) through the separation body (3), light emitted by the LED luminous body (2) is mainly condensed by the condensing element, incident by an inner inclined surface (1b), refracted by a side wall with a certain thickness, emitted by an outer inclined surface (1a), emitted in the horizontal direction, mainly emitted in the upward direction and supplemented by emitted in the horizontal direction, and the LED luminous body (2) emits light in the horizontal direction to generate a local structure capable of generating upward displacement. The horizontal emergent light intensity ratio is high, the light energy utilization rate is high, the structural design allowance delta H and the power supply design allowance are improved, the structural strength is high, the forming process of the shell is facilitated, the light emitting intensity ratio in the horizontal direction and theupward direction are reasonably distributed so as to be more suitable for different emphasis points of vehicles and pedestrians, and the diversified requirements of roads are well met.

Description

Technical field [0001] The invention relates to the field of light-emitting equipment, in particular to an LED light emitting structure and a light-emitting road stud with the structure. [0002] technical background [0003] Luminous road studs, also called luminous protruding road signs, are mainly installed on the road surface and have a luminous function. They mainly act as visual guidance or prompts for motor vehicle drivers and pedestrians, and can also act as auxiliary road lighting equipment. [0004] Most of the existing luminous road studs are mainly raised luminous road studs, which are mainly installed on the road surface. The highest point of the road stud is generally more than 20mm above the road surface; there are also buried luminous road studs whose main body is buried in the road surface when used. The top is flush with the road or slightly protrudes from the bottom. [0005] The main light-emitting structures of existing road studs are mainly summarized into two ca...

AI Technical Summary

Problems solved by technology

[0009] 1. The lamp bead is vertically upward or obliquely upward, and its light intensity distribution is unreasonable. A large part of the light energy is emitted upward through the top of the light slot, and the light intensity in the upward direction is relatively large, resulting in the visible distance of remote light Short, poor effect, low utilization rate of light energy, and short-range light can easily cause light interference and glare to pedestrians and non-motor vehicle drivers, and easily induce traffic accidents

[0010] 2. The wall thickness of the top part of the inverted V-shaped light emitting groove is thin, the structural strength is small, and the compression and impact resistance are not enough, which is easy to cause damage to the shell;

[0011] 3. The inverted V-shaped light emitting groove is not conducive to the injection molding process. The inverted V-shaped light emitting groove has a large stress and is easy to crack. In order to achieve a better remote lighting effect, it is necessary to adjust the installation angle and positioning of the straw hat lamp bead. Inconvenient, resulting in poor product consistency

[0012] To sum up, the existing luminous road studs all have unreasonable LED light emission structures, which lead to unreasonable light field distribution of the luminous light guide part of the road stud, which is not conducive to the distribution of light intensity ratio, and the light energy utilization rate is low. The long-distance lighting effect is poor, and the short-distance lighting is easy to cause light interference. Within the size limit of the existing traffic regulations, it is not easy to reduce the height of the road stud out of the road surface. The main disadvantage is that it cannot meet the diverse needs of roads, which seriously hinders the popularization and use of luminous road studs

Images