The invention discloses a high-
efficacy LED automobile
headlamp. The high-
efficacy LED automobile
headlamp comprises a shell body; an
LED lamp is arranged in an inner cavity of the shell body, and annular
copper bases are connected to the lower end of the
LED lamp in a sleeving mode; and a
copper weaving belt is arranged on the peripheries of the annular
copper bases and connected with the middles of the lower ends of arc-shaped
heat conducting copper plates through memory
alloy heat conducting plates. According to the high-
efficacy LED automobile
headlamp, the joints of the annular copper bases and the
LED lamp are more stable and firmer by arranging
diagonal planes, and the heat transmitting efficiency is improved; heat produced through the LED lamp can be well dredged by arranging
heat conducting holes and a buffering bin; heat produced on a wire connecting foot can be well absorbed by arranging a heat conducting bin, and accordingly the heat is concentrated on the copper weaving belt; the heat is processed maximally through cooperative working of
heat transmission copper columns, the memory
alloy heat conducting plates and the arc-shaped heat conducting copper plates; and the memory
alloy heat conducting plates can be subjected to shape adjusting according to the heat remained on the copper weaving belt, accordingly, the positions of the arc-shaped heat conducting copper plates are adjusted, and the heat dissipation efficiency is adjusted.