CN202392473U - LED lamp with built-in driving circuit - Google Patents

The utility model discloses an LED lamp with a built-in driving circuit, which comprises a lampshade, an aluminum substrate, LED bulbs, the driving circuit and a radiator. The lampshade covers on a light outlet, the LED bulbs are arranged on the aluminum substrate, the radiator comprises a bottom plate and a plurality of radiating strips, the lower end surface of the bottom plate is connected with the aluminum substrate, the radiating strips are uniformly disposed at the edge of the upper end surface of the bottom plate, and surround the bottom plate to form a cavity, the driving circuit is placed in the cavity, and the radiator is fixedly connected with the driving circuit via a heat insulation structure. The driving circuit is placed in the radiator, the size of the LED lamp is reduced, the structure is simpler, and cost is lowered.

The LED lamp that drive circuit is built-in

Technical field

The utility model relates to the LED lamp, the LED lamp that particularly a kind of drive circuit is built-in.

Background technology

LED (Light Emitting Diode, light emitting diode) is a kind of solid-state semiconductor devices, and it can directly be converted into light to electricity.The heart of LED is a semi-conductive wafer, and an end of wafer is attached on the support, and an end is a negative pole, and the other end connects the positive pole of power supply, makes entire wafer by epoxy encapsulation.Semiconductor wafer is made up of two parts, and a part is a P-type semiconductor, occupies an leading position in its hole, the inside, and the other end is a N-type semiconductor, mainly is electronics here.But when these two kinds of semiconductors couple together, just form one " P-N knot " between them.When electric current acted on this wafer through lead, electronics will be pushed to the P district, and electronics will send energy with the form of photon, the luminous principle of LED that Here it is then with hole-recombination in the P district.And the color of light wavelength decision light, by forming the decision of P-N knot material.

Yet existing LED lamp includes drive circuit and radiator, and volume is excessive.

Summary of the invention

The utility model technical problem to be solved is: propose the built-in LED lamp of a kind of drive circuit, drive circuit is placed in the radiator, reduced volume, structure is simpler, also reduces cost.

The utility model proposes the built-in LED lamp of a kind of drive circuit; Comprise the lampshade, the aluminium base that cover on light-emitting window, be arranged on LED lamp pearl, drive circuit and radiator on the aluminium base; Said radiator comprises the base plate that a lower surface is connected with said aluminium base and evenly is arranged on some heat sink strips at the edge of said base plate upper surface; Said heat sink strip forms a cavity round said base plate; Said drive circuit places in the said cavity, is connected through a heat insulation structural between said radiator and the said drive circuit to be fixed up.

Preferably, said heat insulation structural is the shell that a plastic material is processed, and said drive circuit places in the said shell.

Preferably, evenly be provided with some air vents on the said base plate, said air vent is round said substrate setting.

Preferably, said lampshade is connected with said radiator, said lampshade comprise an aluminium cover be arranged on the said aluminium cover with the adaptive transmissive mirror of said LED lamp pearl, said transmissive mirror is corresponding one by one with said lamp pearl.

The utility model places drive circuit in the radiator, has reduced volume, and structure is simpler, also reduces cost.

Description of drawings

Fig. 1 is the structural representation before the installing drive circuit among the embodiment of the built-in LED lamp of the utility model drive circuit;

Fig. 2 is the structural representation behind the installing drive circuit among the embodiment of the built-in LED lamp of the utility model drive circuit.

The realization of the utility model purpose, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.

The specific embodiment

Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

The above is merely the preferred embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.