Liquid cooling LED optical module

Abstract

The invention relates to a liquid cooling LED optical module (100). The liquid cooling LED optical module comprises a circuit board mounting part (1), and a radiator (2) arranged at the lower end of the circuit board mounting part. The circuit board mounting part (1) has a hollow semispherical structure for defining a semispherical cavity (103) inside; a flexible circuit board (3) is fixed on the outer surface of the spherical wall of the circuit board mounting part (1); multiple LED beads (301)are distributed on the flexible circuit board (3); a light outlet cover (4) coats the periphery of the flexible circuit board, and is densely fixed to the circuit mounting part (1) and / or the radiator (2), so that a cavity (104) is formed between the light outlet cover (4) and the circuit board mounting part (1); the cavity and the semispherical cavity (103) are communicated through multiple through holes (102) formed in the spherical wall (101) of the circuit board mounting part (1); and cooling liquid (5) is filled in the cavity (104) and the semispherical cavity (103).

Description

Technical field [0001] The present invention relates to light module technology in the field of LED lighting, in particular to an LED light module, in particular to an LED light module with liquid cooling and heat dissipation. Background technique [0002] Under the current common practice of LED heat dissipation, the heat conduction path can be explained as follows: LED heat sink-thermal grease-copper foil the same size as the heat sink-aluminum substrate insulation layer-aluminum plate-heat sink. It can be seen that the heat conduction path from the LED to the aluminum substrate is only the same size as the heat sink of the LED. For high-power LEDs, it is not enough to dissipate heat in this way, but how to dissipate heat can balance miniaturization, high power, and low cost, which is an unsolved problem. [0003] In this regard, Chinese Patent Application Publication CN201010247353.3 discloses a double-layer lampshade liquid-cooled LED lamp, which aims at the single-layer lamps...

AI Technical Summary

Problems solved by technology

[0008] 1. Since the LED is a directional light source, an effective light pattern conversion method is required to convert the small-angle light into an omnidirectional light. However, according to the usual practice, one way is to use a lens to convert the light angle, but it involves The light output efficiency is reduced and the cost is increased; another method is to change the planar arrangement of the LED lamp beads to a three-dimensional multi-directional arrangement, but the heat dissipation path is reduced and the thermal resistance is increased, the heat dissipation effect is deteriorated, and the light efficiency is reduced;

[0009] 2. The COB light source emits a lot of heat, which must be solved through good heat conduction. The heat conduction path should be as smooth as possible. According to the traditional method, after five or six layers of medium are transferred layer by layer, each layer has a large Thermal resistance, not to mention the insufficient contact surface caused by processing and assembly, resulting in huge air thermal resistance, how to most effectively export the heat generated by the LED light-emitting part, only direct contact with the light-emitting part can do this

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