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LED Lamp With Heat Dissipation Effect

  • US 20180283674A1
  • Filed: 03/26/2018
  • Published: 10/04/2018
  • Est. Priority Date: 03/31/2017
  • Status: Active Grant
First Claim
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1. A light emitting diode (LED) lamp with a heat dissipation effect, the LED lamp comprising:

  • a light bar having multiple conductive substrates and multiple LED chips arranged on the conductive substrates, wherein each LED chip is a double-sided light-emitting flip chip that is hosted and electrically connected by two adjacent said conductive substrates, and an upper surface and a lower surface of each of the LED chips are respectively covered with a packaging layer, wherein the light bar has at least one wire connected to the conductive substrates;

    a protective cover comprising an insulative light-transmitting tube, wherein the light-transmitting tube is a plastic tube made by extrusion molding and covers the light bar;

    cooling liquid being translucent and insulating, wherein the cooling liquid is filled into the protective cover and contacts the light bar;

    sealing elements disposed in the protective cover to prevent the cooling liquid from leaking out, wherein each of the at least one wire of the light bar passes through a respective one of the sealing elements;

    a fixing block, wherein an end of the light bar covered with the protective cover and filled with the cooling liquid is fixed to the fixing block, a circuit board is disposed inside the fixing block, and the circuit board is electrically connected to the at least one wire of the light bar; and

    a lamp base mounted to the fixing block and electrically connected to the circuit board, wherein the lamp base is adapted to connect an external power source.

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