LED (light-emitting diode) lamp with good heat dissipation

Abstract

An LED lamp comprises a heat dissipation lamp cup (1) having a hollow inner structure and openings at two ends and comprises a driving power supply housing (2) sleeve-connected to the heat dissipation lamp cup (1). The outer diameter of the driving power supply housing (2) is smaller than the inner diameter of the heat dissipation lamp cup (1). A heat dissipation channel vertically running through the openings at the two ends of the heat dissipation lamp cup (1) is formed between the driving power supply housing (2) and the heat dissipation lamp cup (1). Upper and lower portions of the heat dissipation channel are both in communication with the outside air, so that air can enter the heat dissipation lamp cup (1) and take away the heat generated by a driving power supply, so as to not only prevent the heat dissipation lamp cup (1) from affecting the driving power supply, but also perform effective convectional heat dissipation on the driving power supply, thereby decreasing the rise of the ambient temperature of the power supply by about 5%.

Description

technical field [0001] The invention relates to the technical field of LED lighting, in particular to an LED lamp with good heat dissipation. Background technique [0002] Whether the LED lamp works stably, the quality is good or bad, and the heat dissipation of the lamp itself is very important. In the past, people focused on the heat dissipation of the LED light source, and optimized its heat dissipation performance by improving the shape, structure, and material of the heat dissipation lamp cup, but usually The heat dissipation of the LED drive power supply is not well considered. [0003] For example, the high-power LED lighting lamps in the prior art generally adopt a hollow heat dissipation lamp cup, and a base for fixing the LED light-emitting component is arranged inside the light cup, and the base separates the cavity of the heat dissipation lamp cup into an LED light-emitting component receiving cavity and a drive. The power supply housing cavity, the driving powe...

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Problems solved by technology

[0003] For example, the high-power LED lighting lamps in the prior art generally adopt a hollow heat dissipation lamp cup, and a base for fixing the LED light-emitting component is arranged inside the light cup, and the base separates the cavity of the heat dissipation lamp cup into an LED light-emitting component receiving cavity and a drive. The power supply housing cavity, the driving power supply housing is set in the driving power supply housing cavity, the upper and lower ends of the driving power supply housing cavity are closed, and the inner wall of the driving power supply housing is close to the inner wall of the driving power supply housing cavity, because the heat dissipation lamp cup itself The heat of the LED light source has been carried, so the driving circuit board is in a high-temperature environment in the heat dissipation lamp cup, and the heat is difficult to dissipate effectively. Over time, it will affect the normal operation of the electronic components of the driving power supply, thereby affecting the overall service life of the LED lighting lamp

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