TWM455129U - LED bulb - Google Patents

Description

Full-circle LED light bulb

The present invention relates to a light-emitting diode bulb, in particular to a full-circumferential light-emitting diode bulb having a full-circumferential distribution effect.

Because LEDs have the advantages of power saving, long service life and no toxic substances such as mercury, LED bulbs are gradually favored by users. However, LED bulbs often cause damage to the circuit board or LED damage due to heat dissipation problems. Therefore, in order to enable the LED bulb to be used for a long time and maintain a certain brightness, the LED bulb needs to be provided with a heat sink to illuminate the LED. The generated heat is properly discharged to the outside world.

The general LED bulb mainly comprises an LED module and a heat dissipation structure, and the heat dissipation structure is disposed under the LED module to dissipate the heat energy generated by the LED module through the heat dissipation structure. FIG. 1 shows a conventional LED bulb. Schematic diagram of the heat dissipation structure of the lamp. As shown in FIG. 1 , the heat dissipation structure 10 includes a plurality of metal fins 12 , and the metal fins 12 are arranged in a ring at equal intervals in a snap-fit manner and are coated with an aluminum paste, a solder paste or an adhesive. Gluing, and then anodizing the metal fins 12; the circuit board (not shown) of the LED module is fixed to the top edge 121 of the metal fin 12 by a thermal conductive adhesive so as to pass through the circuit substrate and the metal fins 12 The contact causes the thermal energy generated by the LED module to be conducted to the metal fins 12, and the air flows through the gaps between the metal fins 12 to dissipate the heat energy.

In the heat dissipation structure 10 of the LED bulb described above, when applied to an LED module having a high wattage, the temperature is easily concentrated on the outer edge 122 of the metal fin 12, and it is not directly touched by the hand, which is dangerous in use. At the same time, the surface of the metal fin 12 is also prone to safety concerns or electromagnetic interference due to metal conduction. Moreover, the original sharp outer edge 122 of the metal fin 12 has been anodized or sprayed with various paints, but the safety problem of hand cuts cannot be avoided.

On the other hand, the LED module of the conventional LED bulb is limited by the design of the structure, and the illumination angle is limited, and only the half-cycle type, that is, the illumination angle lower than 180 degrees, enables the entire LED bulb to emit light. The angle is narrow and the luminous intensity is not uniform.

In order to solve the above problems, one of the purposes of the present invention is to provide a full-circumference type light-emitting diode bulb, which has a wide illumination angle and uniform luminous intensity, and exhibits a full-circumferential distribution, which can improve the conventional light-emitting diode. The body bulb has a narrow illumination angle and a lack of uneven illumination intensity due to the directivity problem of the LED light source.

One of the purposes of the present invention is to provide a full-circumference type light-emitting diode bulb, in which the heat-dissipating lamp housing and the reticle and the power base have a close degree of bonding, and the degree of bonding is good.

In order to achieve the above object, the full-circumference type LED lamp of the present embodiment comprises: a power base; a heat sink is disposed on the power base, and the outer surface of the heat sink is arranged with a plurality of protrusions. a surface, each protruding surface is extended from the bottom end of one of the heat dissipation lamp shells along the outer surface, and a groove is formed between the adjacent protruding surfaces; the plurality of light source modules are respectively disposed on the protruding surfaces; The reticle is respectively corresponding to the protruding surface and covers the light source modules.

2 is a schematic structural view of a full-circumference type light-emitting diode bulb according to an embodiment of the present invention. As shown in FIG. 2, the full-circumference type LED bulb 20 includes a power base 22; The lamp housing 24 is disposed on the power base 22, and the outer surface 241 of the heat dissipation lamp housing 24 is arranged with a plurality of protruding surfaces 26, and each protruding surface 26 is extended from the bottom end of the heat dissipation lamp housing 24 along the outer surface 241. A circular arc surface is formed, and a groove 28 is formed between adjacent protruding surfaces 26 . In this embodiment, the plurality of protruding surfaces 26 are equally spaced and arranged on the outer surface 241 of the heat dissipation lamp housing 24; the plurality of light source modules 30 Each of the protruding surfaces 26 is disposed on each of the protruding surfaces 26, wherein the light source module 30 is an LED lighting module; and a plurality of photomasks 32. The bottom end of each of the optical masks 32 is fixed to the power base 22, and each of the masks 32 respectively corresponding to a protruding surface 26 to cover a light source module 30 respectively. In the embodiment and the drawings, the four-group protruding surface 26, the four-group light source module 30, and the four-piece photomask 32 are used as the full-circumference type light-emitting diode bulb 20, but are not limited thereto.

Wherein, as shown in FIG. 2, the top edge of the power base 22 is formed with a plurality of snap structures. To fasten the bottom of the heat sink housing 24 and the reticle 32. A card slot 34 is disposed at a top end of each of the protruding surfaces 26, and a hook 321 is disposed at a top end of the inner wall of each of the reticle 32, and the hook 321 and the card slot 34 are respectively engaged with each other, as shown in FIG. The plurality of reticle 32 is disposed around the heat-dissipating lamp housing 24 and constructed in a spherical shape, and the inner wall of the reticle 32 and the heat-dissipating lamp housing 24 have a distance, as shown in FIG. 4, instead of being completely fitted. It has the effect of heat conduction and convection, and increases heat dissipation.

The heat-dissipating lamp housing 24 may be in the shape of a ball, an ellipse, a candle, a cylinder or a strip; the material of the reticle 32 is a light-transmissive material such as plastic or glass; the power base 22 and the heat-dissipating lamp housing 24 The material is ceramic material; or the power base 22 and the heat sink shell 24 are made of metal, alloy or plastic, and the ceramic outer surface is formed by sputtering or electrochemical. The ceramization utilizes liquid processing technology to promote the self-generated and highly crystalline ceramic surface of the metal, thereby combining the excellent properties of the metal and the ceramic, wherein the metal has excellent thermal conductivity, and the ceramic has excellent heat dissipation characteristics through the phonon. Moreover, due to the non-absorbentness of the ceramic material, the electrostatic or electric shock problem of the full-circumference type LED bulb can be avoided, and the use of the ceramic material or the ceramic surface improves the problem that the conventional metal fin is easy to cut and the surface temperature is hot. It also has excellent electrical insulation, high hardness and corrosion resistance. Moreover, the ceramic surface may have different colors depending on the compound to be oxidized, and the whitener, black, dark green, dark red, and yellowish red are more common.

In the present invention, the plurality of light source modules are respectively disposed on the equally spaced protrusion surfaces formed on the outer surface of the heat dissipation lamp housing, so that the plurality of light source modules respectively emit light in different directions, so that the full-circumference type light-emitting diode bulbs The illuminating angle of the lamp is widened, and the illuminating intensity is uniform, and the total illuminating intensity is distributed, which can improve the narrow illuminating angle and the uneven illuminating intensity caused by the straightness problem of the LED light source of the conventional illuminating diode bulb. Missing. On the other hand, by the snap-on structure design of the power base, in addition to the tight coupling between the heat-dissipating lamp housing and the reticle and the power base, the appearance is increased, and the generation of the conventional bulb lamp is avoided. The problem of poor glue or glue.

The embodiments described above are only for explaining the technical idea and characteristics of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement them according to the scope of the patent. That is, the equivalent changes or modifications made by the people in accordance with the spirit revealed by this creation should still be covered by the scope of the patent of this creation.

10‧‧‧heating structure

12‧‧‧Metal fins

121‧‧‧Top edge

122‧‧‧ outer edge

20‧‧‧Full-circumferential LED bulb

22‧‧‧Power base

221‧‧‧Snap structure

24‧‧‧Heat lamp housing

241‧‧‧ outer surface

26‧‧‧Outstanding face

28‧‧‧ trench

30‧‧‧Light source module

32‧‧‧Photomask

321‧‧‧ card hook

34‧‧‧ card slot

FIG. 1 is a schematic view showing a heat dissipation structure of a conventional LED bulb lamp.

FIG. 2 is a partially exploded perspective view showing a full-circumference type light-emitting diode bulb of an embodiment of the present invention.

FIG. 3 is a schematic view showing the assembly of a full-circumference type light-emitting diode bulb according to an embodiment of the present invention.

FIG. 4 is a top plan view showing a full-circumference type light-emitting diode bulb of an embodiment of the present invention.

20‧‧‧Full-circumferential LED bulb

22‧‧‧Power base

221‧‧‧Snap structure

24‧‧‧Heat lamp housing

241‧‧‧ outer surface

26‧‧‧Outstanding face

28‧‧‧ trench

30‧‧‧Light source module

32‧‧‧Photomask

321‧‧‧ card hook

34‧‧‧ card slot

Claims (10)

A full-circumference type light-emitting diode bulb lamp comprises: a power base; a heat-dissipating lamp shell disposed on the power base, wherein one outer surface of the heat-dissipating lamp shell is arranged with a plurality of protruding surfaces and adjacent A groove is formed between the protruding surfaces; a plurality of light source modules are respectively disposed on the protruding surfaces; and a plurality of light masks respectively corresponding to the protruding surfaces and covering the light source modules. The full-circumference type light-emitting diode bulb of claim 1, wherein the protruding surfaces are equally spaced on the outer surface of the heat-dissipating lamp housing. The full-circumference type light-emitting diode bulb of claim 1, wherein each of the protruding surfaces is extended from the bottom end of the heat-dissipating lamp housing along the outer surface. The full-circumference type light-emitting diode bulb according to claim 1, wherein the heat-dissipating lamp shell has a spherical shape, an elliptical shape, a candle shape, a column shape or a strip shape. The full-circumference type LED lamp of claim 1, wherein a top edge of the power base is formed with a plurality of snap structures for the heat sink housing, the bottom end of the mask, and the The power bases are snapped together. The full-circumference type light-emitting diode bulb of claim 5, wherein a top surface of each of the protruding surfaces is respectively provided with a card slot, and a hook is respectively disposed at a top end of each of the inner walls of the photomask for card Set in the card slot. The full-circumference type light-emitting diode bulb according to claim 1, wherein the power base and the heat-dissipating lamp shell are made of ceramic material. The full-circumference type light-emitting diode bulb of claim 1, wherein the power base and the heat-dissipating lamp housing have a ceramic outer surface. The full-circumference type light-emitting diode bulb according to claim 1, wherein the light source module is an LED light-emitting module. The full-circumference type light-emitting diode bulb of claim 1, wherein the material of the mask is glass or plastic.