TW201400759A - Light emitting diode - Google Patents

Abstract

A Light Emitting Diode (LED) lamp includes a lamp base, a LED module and a shade. The lamp base includes a power module. The LED module is disposed on the lamp base and is electrically connected to the power module. The LED module is used for emitting light. The shade is disposed on the lamp base and surrounds the LED module and the material of the shade is solid. The shade includes a top side, a lateral side, an accommodation room, an inner rough source and an outer surface opposite to each other. The LED module is in the accommodation room. The material of the shade includes a diffuser. The lateral side is connected to the lamp base. The thickness of the top side is less than that of the lateral side. The thickness of the shade is substantially increased from the lateral side to the top side.

Description

Luminous diode lamp

The invention relates to a luminaire for a light-emitting diode, in particular to a luminaire with a full-circumference light-emitting diode.

A Light Emitting Diode (LED) is a light-emitting semiconductor electronic component. When a current flows through the light-emitting diode, the electron and the hole overlap in the light-emitting diode to emit monochromatic light due to the principle of electroluminescence. In recent years, due to the rapid advancement of the light-emitting diode technology, the light-emitting diode has been applied to general indoor and outdoor lighting. For example, a light-emitting diode module is disposed in a light bulb, and when the light-emitting diode module is energized, the light-emitting diode bulb can be used for indoor lighting. Compared with the traditional incandescent bulbs, LED bulbs have the advantages of low energy consumption, long service life, small size, fast response, etc. Therefore, LED bulbs have begun to replace traditional incandescent bulbs and become the mainstream of future lighting equipment. trend.

In general, the higher the power of the light-emitting diode, the more heat it generates. At the same time, when the heat is not effectively removed from the self-luminous diode, the temperature of the light-emitting diode will rise rapidly. The high temperature will seriously affect the life and luminous efficacy of the LED. Therefore, in the conventional technology, most of the high-power LED bulbs are provided with a heat dissipation structure, and the heat dissipation structure is in thermal contact with the LEDs, and the heat dissipation structure can timely generate the LEDs. Heat removal.

In addition, compared to the tungsten filament of a general incandescent light bulb, the light source of the light emitting diode The area is small, that is, the light source is more concentrated. Therefore, when the light-emitting diode is used for illumination, in the prior art, a lens or a diffuser is disposed on the light-emitting diode to disperse the light source, thereby increasing the illumination angle of the light-emitting diode. However, if a plurality of lenses or diffuser covers are simultaneously added, the light emitted by the light-emitting diodes needs to penetrate a plurality of media, resulting in an increase in light energy loss, thereby reducing the illumination efficiency. In addition, in the prior art, the industry has developed to increase the illumination angle of the light-emitting diode bulb by expanding the volume of the diffusion lamp cover so that the shape of the diffusion lamp cover is three-quarters of a ball to the whole world. However, in the above manner of increasing the volume of the diffusing lamp cover, since the total length of the general light-emitting diode bulb is fixed, when the volume of the diffusing lamp cover is increased, the volume of the heat dissipating structure is reduced. Therefore, when the volume of the heat dissipation structure is compressed, the heat dissipation efficiency of the light-emitting diode bulb is also reduced, so that by increasing the volume of the diffusion lamp cover to increase the illumination angle, the light-emitting diode bulb is easily irradiated. Reduced brightness and reduced life.

In summary, the above-described light-emitting diode bulbs have a problem in that they cannot balance between heat dissipation and wide-angle illumination. Therefore, there is an urgent need for a light-emitting diode bulb, and the light-emitting diode bulb has a wide illumination angle without affecting the original heat dissipation efficiency.

In view of the above problems, the present invention provides a light-emitting diode lamp, which solves the problem that the conventional light-emitting diode lamp cannot solve heat dissipation and wide-angle illumination at the same time.

According to an embodiment of the invention, a light-emitting diode lamp is disclosed, which comprises A lamp holder, a light emitting diode module and a lamp cover. The lamp holder contains a power module. The LED module is disposed on the lamp holder and electrically connected to the power module, and the LED module is used for illumination. The lamp cover is disposed on the lamp holder and surrounds the light emitting diode module. The material of the lamp cover is solid. The lamp cover has a top portion, a side portion, an accommodating space, an inner rough surface opposite to each other, and an outer surface. The composition of the lampshade comprises a light diffusing powder. Wherein the side portion is connected to the lamp holder, the thickness of the top portion is greater than the thickness of the side portion, and the thickness of the lamp cover is substantially thickened from the side portion toward the top portion.

According to another embodiment of the present invention, a light-emitting diode lamp includes a lamp holder, a light-emitting diode module, and a lamp cover. The lamp holder contains a power module. The LED module is disposed on the lamp holder and electrically connected to the power module, and the LED module is used for illumination. The lamp cover is disposed on the lamp holder and surrounds the light emitting diode module. The material of the lamp cover is solid. The lamp cover has a top portion, a side portion, an accommodating space, an inner surface opposite to each other, and an outer rough surface. The composition contains a light diffusing powder. The side portion is connected to the lamp holder, the thickness of the top portion is greater than the thickness of the side portion, and the thickness of the lamp cover is substantially thickened from the side portion toward the top portion, and the light emitting diode module is located in the accommodating space, and the inner surface faces the light emitting diode module. .

According to another embodiment of the invention, a light-emitting diode lamp includes a lamp holder, a light-emitting diode module and a lamp cover. The lamp holder contains a power module. The LED module is disposed on the lamp holder and electrically connected to the power module, and the LED module is used for illumination. The lampshade is disposed on the lamp holder and surrounds the LED module. The material of the lampshade is solid. The lampshade has a top portion, a side portion, an accommodating space, an inner rough surface opposite to each other, and an outer rough surface. Ingredients contain a light diffusion powder. Wherein the side portion is connected to the lamp holder, the thickness of the top portion is greater than the thickness of the side portion, and the thickness of the lamp cover is gradually thickened from the side portion toward the top portion, the light emitting diode module is located in the accommodating space, and the inner rough surface faces the light emitting diode mold group.

Based on the above embodiment, when the thickness of the lamp cover is gradually thickened from the top toward the side and the lamp cover has an inner rough surface or an outer rough surface or both an inner rough surface and an outer rough surface, the light cover is enlarged by the light cover. The angle of illumination of the light emitted by the polar body module. In addition, the composition of the lamp cover contains diffusion powder. Therefore, compared with the prior art, the illuminating diode lamp disclosed in the embodiment of the present invention emits the LED when the thickness of the lamp cover is adjusted without affecting the volume of the lamp holder. When the light reaches the lampshade, the light diffuses light to increase the angle of illumination when the light passes through different media. Therefore, the illuminating diode lamp disclosed in the embodiment of the present invention solves the problem that the illuminating diode lamp cannot solve the problem of heat dissipation and wide-angle illumination at the same time, and further maintains the illuminating diode of the illuminating diode. Under the heat dissipation efficiency, the effect of the full-circumference illumination of the luminaire of the illuminating diode is achieved.

The above description of the present invention and the following description of the embodiments of the present invention are intended to illustrate and explain the spirit and principles of the invention.

The detailed features and advantages of the present invention are set forth in the Detailed Description of the Detailed Description of the <RTIgt; </ RTI> <RTIgt; </ RTI> </ RTI> </ RTI> <RTIgt; The objects and advantages associated with the present invention can be readily understood by those skilled in the art. Following The examples are intended to describe the present invention in further detail, but do not limit the scope of the invention in any way.

According to an embodiment of the invention, a light-emitting diode lamp 100 is disclosed, and the light-emitting diode lamp 100 is adapted to emit light for illumination.

Please refer to FIG. 1 and FIG. 2 simultaneously. FIG. 1 is a perspective view of a light-emitting diode according to a first embodiment of the present invention, and FIG. 2 is a light-emitting diode according to a first embodiment of the present invention. An exploded view of the luminaire. In the embodiment, the illuminating diode 100 includes a lamp holder 200, a circuit board 300, a plurality of LED modules 310, and a lamp cover 400. The circuit board 300 is disposed on the lamp holder 200, the LED module 310 is disposed on the circuit board 300, and the LED module 310 and the circuit board 300 are electrically connected to each other. The lamp cover 400 is disposed on the circuit board 300 and surrounds the LED module 310. In this embodiment, the number of the LED modules 310 is four, but the invention is not limited. In other embodiments, the number of the LED modules 310 can be adjusted according to implementation requirements. The number of diode modules 310 can be a positive integer greater than one.

In this embodiment and other embodiments of the present invention, the socket 200 includes a power module 210 and a connector 220. The connector 220 is configured to receive electrical energy from an external power source (not shown). The power module 210 converts the electrical energy received from the connector 220 into electrical energy that can be used by the LED module 310. Moreover, the power module 210 transmits power to the LED module 310.

In this embodiment and other embodiments of the present invention, the circuit board 300 is electrically connected to the power module 210. The circuit board 300 is configured to receive power of the power module 210 The power is transmitted to the LED module 310 to cause the LED module 310 to emit light toward the globe 400.

The structure of the lampshade 400 will be described below. Please refer to FIG. 2 and FIG. 3 simultaneously. FIG. 3 is a cross-sectional view of the lampshade according to the first embodiment of the present invention. The material of the globe 400 is solid, and the shape of the globe 400 is between the hemispheres and three quarters of the balls. The lamp cover 400 has a top portion 410, a side portion 420, an inner rough surface 430, an outer surface 440, and an accommodating space 470. The side portion 420 is connected to the lamp holder 200, and the thickness of the top portion 410 is greater than the thickness of the side portion 420. That is, the thickness of the globe 400 is substantially thicker from the side portion 420 toward the top portion 410. The inner rough surface 430 and the outer surface 440 are opposed to each other. The inner rough surface 430 is used to diverge the light emitted from the accommodating space 470 to increase the illumination angle of the light. In the present embodiment, the inner rough surface 430 refers to an unsmooth surface. When the light passes through the inner rough surface 430, the light penetrates the inner rough surface 430 to generate different refraction directions, thereby increasing the angle of illumination. efficacy. In addition, in other embodiments, the inner rough surface 430 is a plane having a microstructure that can diverge light or can change the roughness of the inner rough surface 430, thus facilitating the divergence of light.

The accommodating space 470 is used for accommodating the LED module 310. Furthermore, the composition of the globe 400 comprises a light diffusing powder. When the light emitted by the LED module 310 penetrates into the lamp cover 400, the lamp cover 400 having the light diffusion powder facilitates diverging the light to increase the illumination angle of the light.

In this embodiment and other embodiments of portions of the present invention, the globe 400 has a central axis 412 with a central axis 412 located at the top 410. Thickness of the lampshade 400 The mass gradually decreases from the central axis 412 toward the side portion 420.

In the present invention, "the thickness of the globe 400 is substantially thickened from the top portion 410 toward the side portion 420" is defined as the thickness of the globe 400 gradually increasing from the top portion 410 toward the side portion 420 from a macroscopic point of view. The thickness of the top portion 410 is greater than the thickness of the side portions 420. When the light emitted by the LED module 310 penetrates through the inner rough surface 430 from the accommodating space 470 in the lamp cover 400, the light is diverged outward due to the inner rough surface 430. At the same time, since the curvature of the top portion 410 of the globe 400 varies greatly, the angle of refraction of the light is large, thereby diffusing the light toward the side portion 420. In contrast, the side portion 420 is thinner than the top portion 410. When the light emitted by the LED module 310 penetrates from the inside of the globe 400, since the curvature of the side portion 420 of the globe 400 is small, the side portion 420 can increase the brightness of the outwardly emitted light. Therefore, by the thickness arrangement of the lamp cover 400 described above, the lamp cover 400 can increase the illumination angle of the light-emitting diode module 310, thereby achieving the effect of illuminating the entire circumference of the light-emitting diode 100.

The lampshades of other construction types are described below. The inner rough surface 430 is not intended to limit the present invention, and the inner rough surface 430 may have different implementation states, and may also achieve the effects of the present invention. Please refer to FIG. 4A and FIG. 4B simultaneously. FIG. 4A is a schematic cross-sectional view of a lampshade according to a second embodiment of the present invention, and FIG. 4B is a perspective view of a lampshade according to a second embodiment of the present invention. The element structure of this embodiment is similar to the element structure of the above embodiment, and the same reference numerals denote similar structures. Compared with the first embodiment, the inner rough surface 430 of the lampshade 402 further has a plurality of annular grooves 438 adjacent to each other. When the light passes through the annular groove 438, the light passes through the annular groove 438. produce The annular grooves 438 uniformly diverge light out of the globe 402 in different directions of refraction. Such a lampshade 402 can also achieve the effect of increasing the angle of illumination of light.

Please refer to FIG. 5, which is a cross-sectional view of a lampshade according to a third embodiment of the present invention. The element structure of this embodiment is similar to the element structure of the above embodiment, and the same reference numerals denote similar structures. The inner rough surface 430 of the lampshade 403 has a plurality of concave surfaces 434 that are recessed from the accommodating space 470 toward the outside of the lamp cover 403. With such a structure, when the light penetrates from the accommodating space 470 toward the concave surface 434, the concave surface 434 structure can also achieve the effect of diverging light.

Please refer to FIG. 6A and FIG. 6B simultaneously. FIG. 6A is a schematic cross-sectional view of a lampshade according to a fourth embodiment of the present invention, and FIG. 6B is a perspective view of a lampshade according to a fourth embodiment of the present invention. The element structure of this embodiment is similar to the element structure of the above embodiment, and the same reference numerals denote similar structures. The inner rough surface 430 of the globe 404 has a plurality of annular ribs 436 adjacent to each other and the annular ribs 436 projecting toward the accommodating space 470. Thereby, when a light is incident on the annular rib 436 from the accommodating space 470, the light refracts, that is, the annular rib 436 changes the traveling path of the light, thereby increasing the irradiation angle of the light. In other embodiments, the annular rib 436 can be a set of microlens arrays, and the microlens array can also achieve the effect of the annular rib 436 of the embodiment for diverging light.

Please refer to FIG. 7. FIG. 7 is a cross-sectional view of a lampshade according to a fifth embodiment of the present invention. The element structure of this embodiment is similar to the element structure of the above embodiment, and the same reference numerals denote similar structures. The inner rough surface 430 of the globe 405 has a plurality of arcuate faces 432 that protrude toward the accommodating space 470. In this embodiment, the circle The curved surface 432 can be a hyperboloid, a semi-spherical surface, or an elliptical spherical surface, but the shape and number of the circular arc surface 432 are not intended to limit the present invention.

In the first to fifth embodiments described above, the lampshades each have different inner rough surfaces for diverging light. An embodiment in which the outer surface is a rough surface will be described below. Please refer to FIG. 8. FIG. 8 is a cross-sectional view of a lampshade according to a sixth embodiment of the present invention. The element structure of this embodiment is similar to the element structure of the above embodiment, and the same reference numerals denote similar structures. Compared with the first embodiment described above, the main difference between the present embodiment and the above embodiment is that the lamp cover 406 has an inner surface 450 and an outer rough surface 460 opposite to each other. The inner surface faces the accommodation space 470. The outer rough surface 460 is used to diverge the light emitted from the accommodating space 470 to increase the illumination angle of the light. In the present embodiment, the outer rough surface 460 refers to an uneven surface. When the light passes through the outer rough surface 460, the light penetrates the outer rough surface 460 to produce different directions of refraction, thereby achieving the effect of increasing the angle of illumination of the light. In other embodiments, the outer rough surface 460 is a plane having a microstructure that can diverge light or can change the roughness of the outer rough surface 460, which can facilitate divergence of light. For example, the microstructure of the outer rough surface 460 can be a circular arc surface, a concave surface, an annular convex rib, or an annular groove (not shown). The light is diverged by the microstructure to enable the lampshade 407 to increase the effect of diverging light.

Please refer to FIG. 9. FIG. 9 is a cross-sectional view of a lampshade according to a seventh embodiment of the present invention. The element structure of this embodiment is similar to that of the above-described first and sixth embodiments, and the same reference numerals denote similar structures. Compared with the first embodiment described above, the main difference between the embodiment and the above embodiment is that the lamp cover 407 has an inner rough surface 430 and an outer rough surface 460 opposite to each other, and the inner rough surface 430 faces the accommodating space. 470. The non-smooth structure of the outer rough surface 460 is beneficial to the divergence of light, thereby achieving the effect of full-circumferential illumination. In other embodiments, the inner rough surface 430 and the outer rough surface 460 are each a surface having a plurality of microstructures. For example, the microstructure may be a circular arc surface, a concave surface, an annular convex rib or an annular groove (not shown). The light cover 407 achieves the effect of increasing divergent light by diverging the light through the microstructure.

For clarity of understanding, in the illustration of the present invention, the lampshade 400, 402-407 and its thickness, inner rough surface 430, arcuate surface 432, concave surface 434, annular rib 436, annular groove 438, and outer rough surface 460 The size is not plotted in actual scale.

In combination with the above embodiments, the illuminating diode lamps have lampshades of different thicknesses to increase the divergence angle of the light. Therefore, in comparison with the prior art, the illuminating diode of the embodiment of the present invention adjusts the thickness of the lamp cover so that the thickness of the top portion is greater than the thickness of the side portion. At the same time, the material of the lampshade contains diffusion powder. And the lampshade can have an inner rough surface, or the lampshade has an outer rough surface, or the lampshade has both an inner rough surface and an outer rough surface. The lampshade utilizes a non-smooth surface of the inner rough surface or the outer rough surface to facilitate the divergence of light. When the light emitting diode module emits light to the lamp cover, the lamp cover emits light, thereby increasing the illumination angle of the light, thereby solving the problem that the light-emitting diode of the prior art cannot balance between heat dissipation and wide-angle illumination. . The shape of the lampshade of the above embodiment is between the hemispherical type and the three-quarter type without affecting the volume of the lamp holder, so that the lamp of the light-emitting diode can have the effect of full-circumferential illumination.

Although the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and the skilled in the art, without departing from the spirit and scope of the invention. In the meantime, the scope of patent protection of the present invention is subject to the scope of the patent application attached to the specification.

100‧‧‧Lighting diode lamps

200‧‧‧ lamp holder

210‧‧‧Power Module

220‧‧‧Connector

300‧‧‧ boards

310‧‧‧Lighting diode module

400,402~407‧‧‧shade

410‧‧‧ top

412‧‧‧ center axis

420‧‧‧ side

Rough surface in 430‧‧

432‧‧‧ arc surface

434‧‧‧ concave

436‧‧‧Ring ribs

438‧‧‧ annular groove

440‧‧‧ outer surface

450‧‧‧ inner surface

460‧‧‧Rough surface

470‧‧‧ accommodating space

Fig. 1 is a perspective view showing a lamp of a light-emitting diode according to a first embodiment of the present invention.

Fig. 2 is an exploded perspective view showing the illuminating diode of the first embodiment of the present invention.

Fig. 3 is a cross-sectional view showing the lampshade of the first embodiment of the present invention.

Fig. 4A is a schematic cross-sectional view showing a lampshade according to a second embodiment of the present invention.

4B is a perspective view of the lampshade of the second embodiment of the present invention.

Figure 5 is a cross-sectional view showing a lampshade of a third embodiment of the present invention.

Fig. 6A is a schematic cross-sectional view showing a lampshade according to a fourth embodiment of the present invention.

Fig. 6B is a perspective view showing the lampshade of the fourth embodiment of the present invention.

Figure 7 is a cross-sectional view showing a lampshade of a fifth embodiment of the present invention.

Figure 8 is a cross-sectional view showing a lampshade of a sixth embodiment of the present invention.

Figure 9 is a cross-sectional view showing a lampshade of a seventh embodiment of the present invention.

100‧‧‧Lighting diode lamps

200‧‧‧ lamp holder

210‧‧‧Power Module

220‧‧‧Connector

300‧‧‧ boards

310‧‧‧Lighting diode module

400‧‧‧shade

410‧‧‧ top

420‧‧‧ side

Rough surface in 430‧‧

440‧‧‧ outer surface

Claims (10)

A light-emitting diode lamp comprising: a lamp holder, the lamp holder comprising a power module; a light-emitting diode module disposed on the lamp holder and electrically connected to the power module, the light-emitting diode The pole body module is configured to emit light; and a lamp cover is disposed on the lamp holder and surrounds the light emitting diode module, the material of the lamp cover is solid, and the lamp cover has a top portion, a side portion, and an accommodation space An inner rough surface and an outer surface opposite to each other, the component of the lamp cover comprises a light diffusing powder, wherein the side portion is connected to the lamp holder, the thickness of the top portion is greater than the thickness of the side portion, and the thickness of the lamp cover is substantially The side portion is gradually thickened toward the top portion, and the light emitting diode module is located in the accommodating space, and the inner rough surface faces the accommodating space. The illuminating diode of claim 1, wherein the inner rough surface has a plurality of circular arc surfaces facing the accommodating space. A luminaire for a light-emitting diode according to claim 1, wherein the inner rough surface has a plurality of concave surfaces. A luminaire for a light-emitting diode according to claim 1, wherein the inner rough surface has a plurality of annular ribs adjacent to each other. A luminaire for a light-emitting diode according to claim 1, wherein the inner rough surface has a plurality of annular grooves adjacent to each other. The illuminating diode of claim 1, wherein the lampshade has a shape between a hemispherical shape and a three-quarter ball type. A luminaire for a light-emitting diode according to claim 1, wherein the lamp cover has a central axis at the top, and the thickness of the lamp cover substantially decreases from the central axis toward the side. A light-emitting diode lamp comprising: a lamp holder, the lamp holder comprising a power module; a light-emitting diode module disposed on the lamp holder and electrically connected to the power module, the light-emitting diode The pole body module is configured to emit light; and a lamp cover is disposed on the lamp holder and surrounds the light emitting diode module, the material of the lamp cover is solid, and the lamp cover has a top portion, a side portion, and an accommodation space An inner surface opposite to each other and an outer rough surface, wherein the component of the lamp cover comprises a light diffusing powder, wherein the side portion is connected to the lamp holder, the thickness of the top portion is greater than the thickness of the side portion, and the thickness of the lamp cover is substantially The side portion is gradually thickened toward the top portion, and the light emitting diode module is located in the accommodating space, and the inner surface faces the light emitting diode module. The illuminating diode of claim 8, wherein the outer rough surface has a plurality of circular arc surfaces facing the accommodating space. A light-emitting diode lamp comprising: a lamp holder, the lamp holder comprising a power module; a light-emitting diode module disposed on the lamp holder and electrically connected to the power module, the light-emitting diode The pole body module is configured to emit light; and a lamp cover is disposed on the lamp holder and surrounds the light emitting diode module, the material of the lamp cover is solid, and the lamp cover has a top portion, a side portion, and an accommodation space , An inner rough surface and an outer rough surface opposite to each other, the component of the lamp cover comprises a light diffusing powder, wherein the side portion is connected to the lamp holder, the thickness of the top portion is greater than the thickness of the side portion, and the thickness of the lamp cover is substantially The side portion is gradually thickened toward the top portion, and the light emitting diode module is located in the accommodating space, and the inner rough surface faces the light emitting diode module.