The invention discloses an LED driving power supply with
high heat dissipation performance. The LED driving power supply comprises a shell and a
battery pack, and the
battery pack is fixedly sleeved in the shell with a hollow structure. A heat collecting plate for absorbing heat and conducting heat and a
heat conducting rod are arranged at the upper end of the
battery pack, and a first-stage partition plate, a second-stage partition plate and a third-stage partition plate form a sealed cavity filled with an
alcohol solution, so that the
alcohol solution absorbs heat quickly through the
heat conducting rod to be evaporated, and the
cooling effect is achieved. The lower end of the battery pack is connected with a
heat conducting plate to accelerate the flowing of cold and hot
airflow in theshell. A cooling water tank and a
water pipe are arranged in the lower end of the battery pack, and a
piston pulled by a U-shaped shaft is arranged in the
water pipe, so that a low-temperature
water source can comprehensively flow in the cooling water tank. The contact area with the battery pack is increased, and the cooling range is enlarged. By arranging
aluminum foil plates corresponding to each other in a crossed mode on a limiting plate and a buffer plate, flowing gas is cooled by means of the low-temperature characteristic of the
aluminum foil plates, and therefore the purpose of lowering the environment temperature of the driving power supply is achieved.