LED street lamp

Abstract

The invention discloses an LED street lamp. An integrated LED is arranged in a metal lamp holder body provided with a lamp holder frame, a light source chamber with a concave cavity and a plurality of heat-radiating sheets, wherein a heat-conducting block is arranged in the light source chamber and jointed with the light source chamber, the integrated LED is fixed on the heat-conducting block and positioned in the light source chamber, a lens is assembled on the opening end of the light source chamber and forms a seal, a drive power supply is arranged in a metal waterproof power supply box, a sealing cover is arranged on the opening end of the metal waterproof power supply box, the sealing cover is provided with a wire inlet which is matched with a wire inlet waterproof plug screw through threads, the metal waterproof power supply box is connected and fixed on the back surface of the light source chamber of the lamp holder body by using a fastening member and jointed with the metal lamp holder body tightly, and a cable of the integrated LED in the light source chamber is connected with the drive power supply in the metal waterproof power supply box through a wire hole. The LED street lamp has high heat radiation property and high water proofness, and can adapt to various climatic environments.

Description

technical field [0001] The invention relates to a lighting fixture, in particular to an LED street lamp with good heat dissipation performance and strong water resistance. Background technique [0002] The advantages of LED street lights are low power consumption, long service life, and great advantages in energy saving and consumption reduction. However, due to the high heat generated by LED street lights during work, the heat dissipation of LED street lights must be solved. The current heat dissipation of LED street lights is mainly There are several ways: [0003] First, adopt automatic heat dissipation, fix the LED on the aluminum substrate, connect the aluminum substrate to the main radiator, conduct the heat generated by the LED to the main radiator through the aluminum substrate, and use the main radiator to dissipate heat into the air to realize LED Cooling of street lights. The volume of the main heat sink of this structure is required to be large, resulting in an...

AI Technical Summary

Problems solved by technology

This structure increases the production cost of LED street lamps. At the same time, when the LED street lamps are working, the electric fan is also working, which increases the power consumption and the cost of use. In particular, the life of the electric fan is much lower than that of the LED. , it needs frequent maintenance and replacement of electric fans, and the maintenance cost also increases, resulting in an increase in costs, which is not conducive to the promotion and use of LED street lights

[0005] Third, adopt the heat exchange tube cooling technology similar to refrigeration equipment to dissipate heat. A refrigeration device needs to be installed, and the heat exchange and heat dissipation will be carried out through the fluid flowing through the heat exchange tube. Even if the volume of the entire structure of the LED street lamp is increased, the structure will be more complicated. , the production cost and use cost are also higher, which is not conducive to the promotion and use of LED street lamps

[0006] In view of the above reasons, LED street lamps usually focus on heat dissipation performance, and the light source room and power supply box are usually provided with holes or openings for ventilation, so that air can circulate to achieve heat dissipation, which leads to poor waterproof performance of existing LED street lamps. It is also necessary to set up an outer cover to block rainwater. Even so, the outer cover must maintain air circulation. Humid air or heavy rain will still cause water mist or rainwater to enter the body, causing corrosion to the LED circuit and shortening the service life of the LED street light.

This contradiction between heat dissipation and water resistance has not been effectively resolved before.

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