CN205121908U - Large -power LED traffic signal lamp - Google Patents

Abstract

The utility model discloses a high-power LED traffic signal lamp, which comprises a rear cover, a radiator, an LED light source lamp board, a power supply, an integral lens, a Fresnel lens and an optical front cover, wherein the radiator and the power supply are installed at the bottom of the rear cover, The LED light source light board is mounted on the heat sink, the heat conducting material is coated between the LED light source light board and the heat sink, the whole lens is pressed on the LED light source light board, the Fresnel lens is installed inside the optical front cover, the optical front cover and the rear The cover is fixed; the LED light source light board is evenly arranged with a number of high-power LEDs, and the overall lens performs independent light distribution on each LED, and the optical front cover is evenly distributed with microprisms; the light emitted by the LEDs is converged into a corresponding angle through the overall lens The emitted light is then converged by the optical plate of the Fresnel lens into a ring-shaped parallel light, and then the uniform light at the required angle is emitted through the optical front cover. The high-power LED traffic signal lamp can greatly improve the light utilization rate of the high-power LED light source, has a long service life, reduces use cost, and is safe and reliable.

Description

A high-power LED traffic signal light

technical field

The utility model relates to a traffic signal lamp, in particular to a high-power LED traffic signal lamp, in particular to a traffic signal lamp used for indicating various road traffic crossings.

Background technique

At present, the mainstream signal lights on the market adopt the dense arrangement of φ5mm bullet-shaped LED light-emitting diodes, and form various patterns of indicator lights through the arrangement of bullet-shaped LED light-emitting diodes. The light distribution type is simple, but it cannot meet the optical design of LED. The utilization rate of optical efficiency is low. With the development of high-power LEDs, the lumens of a single LED tube can be greatly increased. Therefore, the use of high-power LEDs in traffic lights is an urgent problem to be solved.

Because LED light sources have the advantages of low power consumption, high luminous efficiency and long service life, they are widely used in traffic lights. However, although the brightness of the LED signal light source without secondary optical treatment is high, the brightness is uneven, the brightness in the axial direction is high, and it is rather dazzling. The larger the viewing angle, the lower the brightness, and the luminous flux distribution is extremely unreasonable.

Contents of the invention

Purpose of the invention: In order to solve the above technical problems and make up for the shortcomings of ordinary LED traffic signal wicks such as small viewing angle, uneven distribution of luminous flux, and glare of light, the utility model proposes a high-power LED traffic signal light.

Technical solution: The technical solution proposed by this utility model is: a high-power LED traffic signal lamp, including a rear cover 1, a radiator 2, an LED light source lamp panel 3, a power supply 4, an integral lens 5, a Fresnel lens 6 and an optical front The cover 7, the radiator 2 is a fin-type heat dissipation structure and is fixed on the bottom of the rear cover 1, the LED light source lamp board 3 is mounted on the radiator 2, and the contact surface between the LED light source lamp board 3 and the radiator 2 Coated with a heat-conducting layer; more than one high-power LED is evenly arranged on the LED light source light board 3, and the overall lens 5 is pressed on the LED light source light board 3 to distribute light independently for each high-power LED; the Fresnel lens 6 is installed on The inside of optical front cover 7, the flat surface of Fresnel lens 6 is opposite to integral lens 5, and the side with convex of Fresnel lens 6 is opposite to optical front cover 7 inner wall, the distance between Fresnel lens 6 and integral lens 5 In order to make the light-emitting surface emitted by the LED light source lamp panel 3 coincide with the focal plane of the Fresnel lens 6; the inner wall of the optical front cover 7 is evenly arranged with microprisms, the optical front cover 7 is fixed to the rear cover 1, and the bottom of the rear cover 1 is provided with Power supply 4; the light emitted by the LED is converged into emitted light at a corresponding angle through the integral lens 5, then converged into circular parallel light through the optical plate of the Fresnel lens 6, and then emits uniform light at a required angle through the optical front cover 7.

Preferably, a sealing ring 8 is also included, and the sealing ring 8 is sheathed on the junction of the optical front cover 7 and the rear cover 1 .

Preferably, the rear cover 1 is provided with an outlet hole, and the outlet hole is connected with the waterproof joint 9 .

Preferably, the radiator 2 is made of aluminum.

Preferably, the integral lens 5, the Fresnel lens 6 and the optical front cover 7 are all made of optical grade PC material.

Beneficial effect: compared with the prior art, the utility model has the following advantages:

1. The high-power LED traffic signal light proposed by this utility model can make up for the small viewing angle of the ordinary LED traffic signal wick through the cooperation of the integral lens, Fresnel lens and optical front cover, so that the emitted light beam has a large horizontal viewing angle, uniform brightness, and soft light. , uneven distribution of luminous flux, lack of glare;

2. The high-power LED traffic signal light proposed by this utility model has a compact structure, can improve the light utilization rate of high-power LEDs, has high brightness of the lamp surface, uniform light emission on the lamp surface, good waterproof and dustproof performance, long service life, reduced use cost, and safety reliable.

Description of drawings

Fig. 1 is the perspective view of the utility model;

Fig. 2 is a three-dimensional exploded view of the utility model;

Fig. 3 is a sectional view of the utility model;

Fig. 4 is the structural representation of the utility model optical front cover;

Fig. 5 is a structural schematic diagram of the Fresnel lens of the present invention.

In the figure: 1. Rear cover, 2. Radiator, 3. LED light source light board, 4. Power supply, 5. Integral lens, 6. Fresnel lens, 7. Optical front cover, 8. Sealing ring, 9. Waterproof connector.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Fig. 1 to Fig. 3 are the three-dimensional view, the three-dimensional exploded view and the sectional view of the utility model respectively, in order to be able to use the high-power LED light source on the traffic signal lamp, and improve the utilization rate of the high-power LED light source, and meet the corresponding light output requirements, The utility model proposes a high-power LED traffic signal lamp, which has new optical characteristics, and includes a rear cover 1, a radiator 2, an LED light source lamp panel 3, a power supply 4, an integral lens 5, a Fresnel lens 6 and an optical front cover 7. Wherein the power supply 4 is installed at the bottom of the rear cover 1 .

The heat sink 2 is fixed on the bottom of the back cover 1 by screws. The material of the heat sink 2 is generally aluminum with good thermal conductivity, and its shape is a fin heat dissipation structure with a large heat dissipation area. The LED light source lamp board 3 is mounted on the heat sink 2 and fixed with screws, and the heat conducting material is coated between the LED light source lamp board 3 and the heat sink 2, which greatly reduces the working temperature of the LED light source lamp board 3 . Thus, the service life of the LED light source lamp panel 3 is greatly improved. The integral lens 5 is pressed on the LED light source lamp board 3 , the Fresnel lens 6 is installed inside the optical front cover 7 , and the optical front cover 7 is fixed to the rear cover 1 .

As a further preference of the present invention, the high-power LED traffic signal lamp also includes a sealing ring 8 for fixing, the rear cover 1 is tightly connected with the optical front cover 7 through the sealing ring 8, and the sealing ring 8 is sleeved on the optical front cover 7 And the junction of rear cover 1.

As a further preference of the present invention, the high-power LED traffic signal lamp also includes a waterproof connector 9 installed at the outlet hole outside the rear cover 1, and the sealing ring 8 and the waterproof connector 9 greatly improve the electrical insulation and waterproof and dustproof performance of the lamp. The waterproof and dustproof grade of the whole lamp is guaranteed to reach IP53.

As a further preference of the present invention, several high-power LEDs are evenly arranged on the LED light source lamp board, and the integral lens 5 performs light distribution on each LED independently, so that the LED has good temperature resistance.

The material of the heat sink 2 is aluminum.

As shown in Fig. 4 and Fig. 5, be respectively the structural representation of optical front cover and the structural representation of Fresnel lens in the utility model structure, described integral lens 5, Fresnel lens 6 and optical front cover 7 materials are all It is made of optical grade PC material, and the optical front cover 7 is evenly distributed with microprisms. The utility model is covered with an integral lens 5 on the surface of the LED light source lamp board 3, and the integral lens 5 can converge the light emitted by the LED light source lamp board 3 into a light beam within a corresponding included angle. The inside of the optical front cover 7 is provided with a Fresnel lens 6, and the Fresnel lens 6 keeps a certain distance from the overall lens 5, so that the light-emitting surface emitted by the LED light source lamp panel 3 is fixed on the focal plane of the Fresnel lens 6, and the LED The light emitted by the light source lamp board 3 is converged by the Fresnel lens 6 into circular parallel light, and then the light at a required angle is emitted through the optical front cover 7 . The light beam has a large horizontal viewing angle, uniform brightness, and soft light, which makes up for the shortcomings of ordinary LED traffic signal wicks such as small viewing angle, uneven luminous flux distribution, and glare. Its compact structure can improve the light utilization rate of high-power LEDs and improve the brightness of the lamp surface. High, uniform light on the lamp surface, good waterproof and dustproof performance, long service life, low cost of use, safe and reliable.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (5)

1. a high-power LED traffic signal lamp, it is characterized in that, comprise back cover (1), heating radiator (2), LED light source lamp plate (3), power supply (4), overall lens (5), Fresnel Lenses (6) and optics front shroud (7), heating radiator (2) is for fin type radiator structure and the bottom be fixed in back cover (1), LED light source lamp plate (3) is mounted on heating radiator (2), and the surface of contact between LED light source lamp plate (3) and heating radiator (2) scribbles heat-conducting layer; LED light source lamp plate (3) is upper evenly lays more than one great power LED, and overall lens (5) is pressed on LED light source lamp plate (3), to each great power LED independence luminous intensity distribution; Fresnel Lenses (6) is arranged on optics front shroud (7) inner side, the tabular surface of Fresnel Lenses (6) is relative with overall lens (5), Fresnel Lenses (6) is relative with optics front shroud (7) inwall with the one side of projection, and the distance of Fresnel Lenses (6) and overall lens (5) overlaps with the focal plane of Fresnel Lenses (6) for the light-emitting area making LED light source lamp plate (3) and send; Optics front shroud (7) inwall is evenly laid with microprism, and optics front shroud (7) is fixed with back cover (1), and back cover (1) bottom is provided with power supply (4); The light that LED sends pools the utilizing emitted light of corresponding angle through overall lens (5), optical sheet again through Fresnel Lenses (6) pools annular directional light, then penetrates the uniform light of required angle by optics front shroud (7).

2. a kind of high-power LED traffic signal lamp according to claim 1, is characterized in that, also comprises O-ring seal (8), and O-ring seal (8) is set in the joint portion of optics front shroud (7) and back cover (1).

3. a kind of high-power LED traffic signal lamp according to claim 1, is characterized in that, described back cover (1) outside is provided with wire hole, and wire hole is connected with water joint (9).

4. a kind of high-power LED traffic signal lamp according to claim 1, is characterized in that, described heating radiator (2) is formed from aluminium.

5. a kind of high-power LED traffic signal lamp according to claim 1, is characterized in that, described overall lens (5), Fresnel Lenses (6) and optics front shroud (7) are all made by optical grade PC material.