Oriented heat radiation type portable LED (Light Emitting Diode) module road lamp

Abstract

The invention discloses an oriented heat radiation type portable LED module road lamp. The oriented heat radiation type portable LED module road lamp is characterized by being composed of a lamp head, two support arms, more than two LED modules, a lamp tail, a tail cover, a drive power supply and a mounting barrel, wherein the more than two LED modules are arranged in parallel on two support arms parallel to each other; one ends of the two support arms are connected with the lamp head, and the other ends of the two support arms are connected with the lamp tail; the drive power supply is arranged in a cavity of the lamp tail; one end of the mounting barrel extends in the lamp tail and is fixed by the tail cover; a plurality of heat radiating fins are arranged in parallel in each LED module; and each heat radiating fin is parallel to each support arm. As a lamp shell is composed of the lamp head, the two support arms and the lamp tail, the oriented heat radiation type portable LED module road lamp is reasonable in integral structure and lighter in weight; as the above structural form is adopted, an LED light source adopts a microstructure, and light distribution is carried out by an optical lens directly, so that the light loss is reduced to a maximum extent; and as a structure that the width of each heat radiating fin is gradually increased from two sides to the middle is adopted, the temperature of the whole LED module is balanced.

Description

technical field [0001] The invention relates to a street lamp, in particular to an LED module street lamp used in road lighting, courtyard and park lighting and other occasions. Background technique [0002] Existing LED street lamps have various structures, mainly three types, one is the integral die-casting mold, the whole lamp is dissipated as a whole, and the other is the module structure, mostly adopting two or more symmetrical module groups. The other is to use a high-power high-integration module, which concentrates multiple LED chips on a small substrate, and the whole module dissipates heat from one point to the surrounding. [0003] Existing LED street lamps have major defects in heat conduction and temperature balance. LED street lamps with integral die-casting structure are not flexible enough in application. LED street lamps of each power need to redesign the heat dissipation structure, which is not convenient for installation. Due to the large area of ​​die-ca...

AI Technical Summary

Problems solved by technology

[0003] Existing LED street lamps have major defects in heat conduction and temperature balance. LED street lamps with integral die-casting structure are not flexible enough in application. LED street lamps of each power need to redesign the heat dissipation structure, which is not convenient for installation. Due to the large area of ​​die-casting, the entire piece of glass needs to be waterproofed after the secondary optical lens, resulting in light loss

The heat distribution of LED street lamps with symmetrical structure is uneven. In the single-sided module structure, the heat is concentrated in the middle of the module. The single symmetrical structure uses the largest fin near the middle of the LED street lamp, that is, the fins of a single LED module are close to the outer fins of the lamp. The chip is the smallest and the middle is the largest, but the heat of the unilateral LED module is mainly concentrated in the middle of the module, but the cooling fins in the middle of the module are small, which is not conducive to heat balance and seriously affects the service life of the entire LED street light

The structure of highly integrated LED module street lamp is the most unreasonable. It emits a high concentration of heat to the surroundings. The concentrated heat of the LED itself is more than double that of the heat sink. As the source of heat generation, the highly concentrated heat is under the condition of full heat. The heat is emitted to the surroundings. The module works in an environment up to twice the temperature for a long time, which seriously affects the service life. This design is not used at all for road lighting that works for more than 8 hours a day

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