Patent ID: 7717590

Claim:
An LED lamp with reflecting casings; comprising: a bulb seat ( 1 ) having a threaded connection ( 11 ) at an outer side thereof; an interior of the bulb seat ( 1 ) having a power supply ( 12 ); the bulb seat ( 1 ) having a plurality of hollow posts ( 14 ) and the wires connected to a circuit board and protruding outwards; the auxiliary heat dissipating casing ( 2 ) having a hollow tapered shape which is opened at two ends; an upper opening ( 21 ) of the auxiliary heat dissipating casing ( 2 ) being enclosed by an auxiliary inwardly extending edge ( 22 ); the auxiliary inwardly extending edge ( 22 ) being formed with a plurality of first connecting holes ( 24 ); an insulating layer ( 13 ) installed between an lower end of the bulb seat ( 1 ) and the auxiliary heat dissipating casing ( 2 ) for isolating the power supply ( 12 ) and an auxiliary heat dissipating casing ( 2 ); a main heat dissipating casing ( 4 ) being a hollow tapered shape and being opened at two ends; a tapered size of the main heat dissipating casing ( 4 ) being smaller than that of the auxiliary heat dissipating casing ( 2 ) to cause that the main heat dissipating casing ( 4 ) can be received in an interior of the auxiliary heat dissipating casing ( 2 ); an upper opening ( 41 ) of the main heat dissipating casing ( 4 ) having a main inwardly extending edge ( 42 ) which is formed with a plurality of second connecting holes ( 44 ); an LED lamp body ( 3 ) having a thermally conductive metal heat sink ( 31 ) at an upper side thereof; an inner supporting surface ( 32 ) of the LED lamp body ( 3 ) serving to install with at least one LED chip ( 33 ); the metal heat sink ( 31 ) having a round shape and a rear end thereof protruding with chip pins ( 36 ); and a heat conducting base ( 35 ) for receiving the LED lamp body ( 3 ); the heat conducting base ( 35 ) having plurality of third connecting holes ( 34 ); a center of the heat conducting base ( 35 ) being installed with a round recess ( 351 ); the recess ( 351 ) being formed with a plurality of pin holes ( 352 ); wherein in installation, the insulating layer ( 13 ) installed between an lower end of the bulb seat ( 1 ) and the auxiliary heat dissipating casing ( 2 ); the chip ( 33 ) is firmly secured to a rear end of the heat conducting base 35 by the chip pins ( 36 ) to enter into the pin holes ( 352 ) of the heat conducting base ( 35 ); and then the heat conductive base ( 35 ) is received between the main heat dissipating casing ( 4 ) and the auxiliary heat dissipating casing ( 2 ); a plurality of screws passes through the plurality of first connecting holes ( 24 ) of the auxiliary heat dissipating casing ( 2 ), the plurality of third connecting holes ( 34 ) of the heat conducting base ( 35 ) and the plurality of second connecting holes ( 44 ) of the main heat dissipating casing ( 4 ) sequentially and then the screws screw into the hollow posts ( 14 ) of the bulb seat ( 1 ) so as to complete the assembly of the LED lamp.