JP3162155U - LED light with improved illuminance and heat dissipation of LED lamp - Google Patents

Abstract

Provided is an LED light that can maintain the reflection efficiency of a reflector and improve the heat dissipation effect, and at the same time contribute to cost reduction. An LED light according to the present invention has a light reflecting / radiating hood 2 in which a wall surface of a cylindrical body extends from a bottom surface 21 in a tapered shape and has an opening surface 22 larger than the bottom surface. The back surface of the LED lamp is provided in close contact, and the heat dissipation structure of the light reflecting / radiating hood 2 has innumerable through-holes, cross-sectional zigzag irregularities, innumerable protrusions, cross-sectional corrugations, and embossed irregular patterns. The protrusion has at least one of a cylindrical shape, a prism shape, a cone shape, a pyramid shape, an inverted prism shape, an inverted cone shape, and an inverted pyramid shape. Further, a light reflecting / radiating hood may be incorporated in the decorative cover 1. [Selection] Figure 2

Description

The present invention relates to an improved LED light, and more particularly to an LED light with improved heat dissipation while improving or maintaining the illuminance of the LED lamp.

In recent years, light-emitting diodes (LEDs) have been improved, and the light-emitting diodes, that is, LEDs, consume less power than conventional light bulbs, and have come to be used as light bulbs in general homes as well as industrial use. . Under such circumstances, progress in technology using an LED as a light source is fast, and many patent documents have been published. For example, a white LED is provided on the bottom wall of a box-shaped instrument that is open on one side, and a reflection member, for example, a metal having high thermal conductivity such as Al or Cu) is provided on the peripheral wall. Has a light emission spectrum adjustment section (applied with a red phosphor or a red pigment), thereby increasing the luminous efficiency of the material that emits red light, thereby further improving the color rendering. For example, see Patent Document 1). A hood, a pedestal, and at least one light emitting diode; the light emitting diode is disposed on the surface of the pedestal; the hood is disposed over the pedestal and the light emitting diode; and the hood is coupled to the front of the light emitting diode. An LED certification device is disclosed in which at least one polygonal perforated plate is provided, and the irradiation light of the light-emitting diode is refracted and diffused by passing through the polygonal perforated plate to expand the irradiation range. (For example, refer to Patent Document 2).

JP 2007-52994 A (Claims, paragraph 0020, paragraph 0031, FIG. 1) Utility Model Registration No. 3134323 (Claims, FIG. 2)

  However, the luminaire using the white LED as described in Patent Document 1 as described above is to adjust the emission color of the white LED and is not related to improving the heat dissipation of the white LED. In addition, the LED lighting apparatus described in Patent Document 2 is to diffuse the light irradiation range of the LED by connecting a hood and providing a polygonal translucent plate, and to reduce the amount of the LED used. On the other hand, the present inventor examined a heat dissipation structure that is small and light, maintains the LED reflection efficiency of an umbrella or a hood, and improves the heat dissipation efficiency (also referred to as a heat dissipation effect). Alternatively, the present inventors have found that by providing a heat dissipation means on a reflector made of a hood, the reflection efficiency can be maintained and the heat dissipation effect can be improved, and at the same time, the cost can be reduced. Therefore, the problem to be solved by the present invention is to provide an LED light that can improve the heat dissipation effect while improving or maintaining the reflection efficiency of the reflector, and at the same time contribute to cost reduction.

The above-mentioned problems of the present invention can be achieved by the following devices.

(1) The wall surface of the cylindrical body extends from the bottom surface in a tapered shape, and has a light reflection and heat dissipation hood having an opening surface larger than the bottom surface, and the back surface of the LED lamp is provided in close contact with the bottom surface, The light reflection / heat dissipation hood has a heat dissipation structure.
(2) The LED light as described in the above item (1), wherein the heat dissipation structure is provided with innumerable through holes from the inner surface to the outer surface of the light reflecting / radiating hood. .
(3) The LED light as described in (1) above, wherein the heat dissipation structure has a zigzag-shaped concavo-convex portion on at least one of an inner surface and an outer surface toward the opening of the light reflecting / radiating hood.
(4) The LED light as described in (1) above, wherein the heat dissipation structure has innumerable protrusions on at least one of an inner surface and an outer surface of the light reflecting / radiating hood.
(5) In the fourth aspect, the shape of the protrusion has at least one of a cylindrical shape, a prism shape, a cone shape, a pyramid shape, an inverted prism shape, an inverted cone shape, and an inverted pyramid shape. LED light of description.
(6) The LED light as described in (1) above, wherein the heat dissipation structure is formed in a cross-sectional wave shape toward the opening of the light reflection / heat dissipation hood.
(7) The LED light according to claim 6, wherein innumerable through holes are regularly or irregularly provided on the surface of the wave-shaped heat dissipation structure.
(8) The LED light as described in (1) above, wherein the heat dissipation structure has innumerable embossed uneven patterns on at least one of an inner surface and an outer surface of the light reflecting / radiating hood.
(9) An LED light characterized in that the light reflecting / dissipating hood according to any one of (1) to (8) is incorporated in a decorative cover.

  According to the LED light of the first aspect of the present invention, the wall surface of the cylindrical body extends in a tapered shape from the bottom surface, and has a light reflection and heat dissipation hood having an opening surface larger than the bottom surface. The back of the LED lamp is provided in close contact, and the light reflecting / radiating hood has a heat radiating structure, so that the heat radiation effect can be improved while improving or maintaining the reflection efficiency of the reflector. In addition, it has an excellent effect of contributing to cost reduction at the same time. Further, in the LED light according to the second aspect of the present invention, the heat dissipation structure according to the first aspect has an infinite number of through holes from the inner surface to the outer surface of the light reflecting / radiating hood. Since the heat of the heat radiating plate is further dissipated through the through-holes, an excellent effect of further improving the heat radiating effect is achieved.

In the LED light according to item 3 of the present invention, the heat dissipating structure according to item 1 is a zigzag uneven portion having a cross section on at least one of an inner surface and an outer surface toward the opening of the light reflecting / radiating hood. Since the heat is dissipated from the zigzag uneven surface, the heat dissipation effect is further improved. Further, the LED light according to the fourth aspect of the present invention has an excellent heat dissipation because the heat dissipation structure according to the first aspect has innumerable protrusions on at least one of the inner surface and the outer surface of the light reflecting / radiating hood. More specifically, the heat dissipation structure has a cylindrical shape, a prismatic shape, a conical shape, a pyramid shape, as in the LED light according to the fifth aspect of the present invention. By having at least one of a mold, an inverted prism shape, an inverted cone shape and an inverted pyramid shape on one side, there is a difference in the effect due to the difference in shape, while improving or maintaining the reflection efficiency compared to the conventional one, It has an excellent effect of having a more remarkable heat dissipation effect.

In the LED light according to the sixth aspect of the present invention, the heat dissipating structure according to the first aspect is formed in a cross-sectional corrugated shape toward the opening of the light reflection / heat dissipating hood. As a result, it is possible to obtain a material having excellent heat dissipation efficiency. The LED light according to the seventh aspect of the present invention has a heat radiation area by providing innumerable through holes on the corrugated heat dissipation structure surface according to the sixth aspect regularly or irregularly. Therefore, it is possible to obtain one having even better heat dissipation efficiency. The LED light according to item 8 of the present invention is manufactured by having the heat dissipation structure according to item 1 having innumerable embossed uneven patterns on at least one of the inner surface and outer surface of the light reflecting / radiating hood. Is easy, and an excellent heat dissipation effect can be obtained while improving or maintaining the reflection efficiency. The light reflecting / dissipating hood according to any one of Items 1 to 8 is incorporated in a decorative cover, so that an LED light having excellent decorativeness can be obtained and the light reflecting / dissipating hood. It has an excellent effect of being protected from external stimuli. In addition, since the LED lights described in the second to ninth items have a heat dissipation structure, not only can the heat dissipation effect be improved while improving or maintaining the reflection efficiency of the reflector. At the same time, it has an excellent effect of contributing to cost reduction.

It is a perspective view which shows the LED light of this invention. It is sectional drawing which shows the LED light of this invention. It is sectional drawing which shows another example of the LED light of this invention. It is a fragmentary perspective view which shows the surface shape of the light reflection and heat dissipation hood of the LED light of this invention. It is a fragmentary perspective view which shows another example of the light reflection and heat radiation hood shown in FIG. It is a fragmentary sectional view which shows the structure of the light reflection and heat dissipation hood member of the LED light of this invention. It is a fragmentary perspective view which shows another example of the light reflection and heat radiation hood shown in FIG. It is a partial top view which shows another structure of the light reflection and heat dissipation hood member of the LED light of this invention. It is a fragmentary perspective view which shows a part of shape of the processus | protrusion provided in the surface of the light reflection and heat dissipation hood member of the LED light of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited thereto. FIG. 1 is a perspective view showing an LED light of the present invention. FIG. 2 is a cross-sectional view showing the LED light of the present invention. FIG. 3 is a cross-sectional view showing another example of the LED light of the present invention. FIG. 4 is a partial perspective view showing the surface shape of the light reflecting / dissipating hood of the LED light of the present invention. FIG. 5 is a partial perspective view showing another example of the light reflecting / radiating hood shown in FIG. 4. FIG. 6 is a partial cross-sectional view showing the structure of the light reflecting / dissipating hood member of the LED light of the present invention. FIG. 7 is a partial perspective view showing another example of the light reflecting / radiating hood shown in FIG. 6. FIG. 8 is a partial plan view showing another structure of the light reflecting / dissipating hood member of the LED light of the present invention. FIG. 9 is a partial perspective view showing a part of the shape of the protrusion provided on the surface of the light reflecting / dissipating hood member of the LED light of the present invention.

1 and 2, the decorative cover 1 may or may not be provided, but here, a case where the decorative cover 1 is provided will be described. In FIG. 1, an LED light I of the present invention has a decorative cover 1 in which a cylindrical wall surface 12 extends from a bottom surface 21 in a tapered shape and has an opening surface 22 larger than the bottom surface 21. The LED light main body 13 is surrounded and connected to the fixing member 10 via the support portion 11 that supports the light main body 13 or the decorative cover 1. The fixing member 10 may be, for example, a clip, It can be mounted on the edge of a desk, a cross, or a pillar. In FIG. 2, the LED light main body 13 has a light reflecting / radiating hood 2 and an LED mounting member 4 on the bottom surface 21. The decorative cover 1 has a light reflecting / radiating hood 2, and an LED mounted on the LED mounting member 4 is provided on the bottom surface 21 of the light reflecting / radiating hood 2. The reflective and heat-dissipating hood 2 is provided in close contact with the inner surface of the flat bottom surface 21. As a result, the heat dissipated from the LED (also referred to as an LED lamp) is conducted to the bottom surface 21, and is further radiated from the front surface or the back surface by uniformly conducting heat to the entire light reflecting / radiating hood 2.

  In FIG. 3, the light reflection / heat dissipation hood 2 of the LED light main body 13 is provided with a heat dissipation structure of the hood 2 regularly or irregularly innumerable through holes 6 from the inner surface to the outer surface of the heat dissipation cover. It has been. By providing these through holes 6, the surface area of the light reflecting / radiating hood 2 is increased, and as a result, the heat radiation performance of the light reflecting / radiating hood 2 is improved, and the heat radiation efficiency is increased. The diameter of these through holes 6 is extremely small, preferably 10 μm to 1000 μm. More preferably, the thickness is 10 μm to 100 μm, and these holes 6 have a small hole diameter. Therefore, the amount of light leaking from these holes 6 does not impair the role of the light reflecting / radiating hood 2. A power cord 5 is connected to the rear portion of the LED light body 13 of the present invention, and a plug is provided at the end of the power cord 5, and this plug is directly connected to an outlet (not shown). The LED of the LED light main body 13 or the LED lamp 13 can be turned on by inserting into the LED. In addition, an adapter may be connected in the middle of the power cord 5 and the power may be taken from a storage battery, a battery such as an AA battery, instead of taking power from the outlet (taking electricity) through the adapter. Furthermore, various well-known or well-known power sources such as a solar cell power source, a USB power source, and a power source mounted in the vehicle can be used, and the type of power source is not limited.

  FIGS. 4 to 8 show partial views of the heat dissipation structure of the light reflection / heat dissipation hood 2 used in the present invention, and FIGS. 4 and 5 are zigzag uneven portions. That is, in FIG. 4, zigzag irregularities are provided on one side of the light reflecting / radiating hood 2, and in FIG. 5, the zigzag irregularities are provided on both sides of the light reflecting / radiating hood 2. . Thereby, a very good heat dissipation effect can be obtained while maintaining the reflection efficiency. Needless to say, a corrugated shape with rounded protrusions may be provided on one or both surfaces of the hood 2 instead of the zigzag unevenness.

Further, in FIG. 6, the entirety of the light reflecting / radiating hood 2 is formed in a corrugated shape 8. In FIG. 7, the through-hole 6 is further provided in the light reflection and heat radiation hood 2 formed in the waveform 8 shown in FIG. By comprising in this way, the further heat radiation effect can be acquired with the role of the light reflection and heat radiation hood. FIG. 8 shows an embossed concavo-convex pattern 9 formed on the surface of the light reflecting / radiating hood 2, which is not only excellent in heat dissipation but also easy to manufacture and contributes to cost reduction. It has an excellent effect. In FIG. 9, the shape of the protrusion formed on the surface of the light reflecting / radiating hood 2 is at least one of a cylindrical shape, a prism shape, a cone shape, a pyramid shape, an inverted prism shape, an inverted cone shape, and an inverted pyramid shape. Specifically, the cylinder type is a cylinder a. In addition, an elliptic cylinder may be used. The prismatic type includes b or c. For example, the cross section may be a triangle c, a quadrangle b, a rectangle, a pentagon, or a hexagon. Further, the cone type d and the pyramid type include a triangular pyramid e, a quadrangular pyramid f, and the inverse pyramid type includes an inverted triangular pyramid h and an inverted quadrangular pyramid g. Needless to say, at least one surface of the decorative cover 1 may have a structure like the light reflecting / radiating hood 2 shown in FIGS. As a result, not only the decorativeness is improved, but also the heat flow is further interrupted, so that the heat dissipation effect can be promoted. In this case, it is preferable to provide a slight clearance especially on the contact surface between the decorative cover 1 and the light reflecting / radiating hood 2.

Since the present invention exerts the above-described effects, it can be used for various purposes such as a household light that can be installed in a movable place, a store, and the like. Useful LED lights are obtained.

1 Decorative Cover 2 Light Reflecting and Heat Dissipating Hood 3 LED
4 LED mounting member 5 Code 6 Through hole 7 Zigzag uneven portion 8 Wave pattern 9 Embossed uneven pattern 10 Fixing member 11 Support portion 12 Wall surface 13 of the cylindrical body LED light main body 21 Bottom surface 22 Opening portion I LED light

Claims (9)

The wall surface of the cylindrical body extends from the bottom surface in a tapered shape, and has a light reflecting and heat dissipating hood having an opening surface larger than the bottom surface. The back surface of the LED lamp is closely attached to the bottom surface, and the light The LED light characterized in that the reflection and heat radiation hood has a heat radiation structure. 2. The LED light according to claim 1, wherein the heat dissipating structure has a number of through-holes regularly or irregularly provided from the inner surface to the outer surface of the light reflecting / heat dissipating hood. 2. The LED light according to claim 1, wherein the heat dissipating structure has an uneven portion having a zigzag cross section on at least one of an inner surface and an outer surface toward the opening of the light reflecting / radiating hood. 2. The LED light according to claim 1, wherein the heat dissipation structure has innumerable protrusions on at least one of an inner surface and an outer surface of the light reflecting / radiating hood. 5. The LED light according to claim 4, wherein the shape of the protrusion has at least one of a cylindrical shape, a prism shape, a cone shape, a pyramid shape, an inverted prism shape, an inverted cone shape, and an inverted pyramid shape. . 2. The LED light according to claim 1, wherein the heat dissipation structure is formed in a cross-sectional shape toward the opening of the light reflection / heat dissipation hood. The LED light according to claim 6, wherein innumerable through holes are regularly or irregularly provided on the surface of the wave-shaped heat dissipation structure. 2. The LED light according to claim 1, wherein the heat dissipation structure has innumerable embossed uneven patterns on at least one of an inner surface and an outer surface of the light reflecting / radiating hood. 9. An LED light, wherein the light reflecting / dissipating hood according to claim 1 is incorporated in a decorative cover.

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