JP2011049154A - Led lighting lamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an LED lighting lamp capable of obtaining sufficient illuminance without complicated work such as the adjustment of an irradiation angle of an LED element. <P>SOLUTION: The LED lighting lamp has an LED light source where a plurality of LED elements 2 are arranged on substantially the same plane, and a shade 5 which surrounds the emission direction of the main light of the LED light source, and has a reflecting surface 19 at its inner surface. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an LED illumination lamp. Specifically, the present invention relates to an LED illumination lamp that uses a plurality of LED elements as a light source.

  In general, an LED element has low power consumption and a long life, so it can be said that the advantage of using it as an illumination lamp instead of a fluorescent lamp is great. However, in order to obtain brightness as an illumination lamp, a plurality of LED elements are used. Therefore, an LED illuminating lamp configured by mounting a plurality of LED elements on the same plane is employed.

  Here, each LED element is molded in a bullet-shaped shape with resin, so that light is concentrated forward. The emission angle of light by this LED element is about 15 to 30 degrees, and the irradiation range is narrower than that of a fluorescent lamp. Therefore, the irradiation angle of each LED element is adjusted so that the irradiation range of the entire LED element is adjusted. The device is widely adjusted.

  However, a very complicated operation is required to adjust the irradiation angle of the LED elements mounted on the same plane.

  In addition, what was described, for example in patent document 1 is known as an LED illuminating lamp devised so that an irradiation range may be expanded. Specifically, as shown in FIG. 12, it includes a mounting plate 103 on which a wiring board 102 mounted with an LED element 101 is mounted on the front surface, and a housing 104 in which a plurality of mounting plates 103 can be arranged in parallel. In addition, joint portions 105 are integrally formed on both side edges of the mounting plate 103 so that adjacent ones of the plurality of mounting plates 103 can be connected to be able to be refracted by the joint portion 105.

JP 2007-165051 A

By the way, the LED illuminating lamp described in Patent Document 1 is a mechanism that can adjust the irradiation angle by attaching the wiring board 102 to which the LED element 101 is attached in a bent shape in the housing 104. However, by adjusting the irradiation angle of the LED element 101, the irradiation range can be widened, but there is a problem that the illuminance decreases because the fixed range is irradiated only by the emitted light from each LED element 101. .

  The present invention was devised in view of the above points, and an object of the present invention is to provide an LED illuminating lamp capable of ensuring sufficient illuminance without requiring a complicated operation such as adjustment of an irradiation angle of an LED element. It is what.

  In order to achieve the above object, an LED illuminating lamp according to the present invention surrounds an LED light source in which a plurality of LED elements are arranged on substantially the same plane, a main light emitting direction of the LED light source, and an inner surface thereof. And a shade having a reflective surface.

  Here, the light emitted from the LED light source in which a plurality of LED elements are arranged on substantially the same plane is shaded with its inner surface as a reflecting surface (for example, a highly reflective aluminum plate, and its inner surface is a reflecting surface. By being surrounded by an umbrella-shaped shade), the light irradiated at a predetermined angle or more can be reflected on the reflecting surface of the shade, and the illuminance is constant within a certain range under the LED lighting lamp. High illuminance can be obtained.

  Further, when the LED elements are arranged on substantially the same plane, when installed in the ceiling, the illuminating lamp itself protrudes from the ceiling surface like the LED illuminating lamp described in Patent Document 1. It becomes possible to install compactly.

  Furthermore, it is possible to obtain a certain high illuminance only by providing a shade so as to surround the main light emission direction of the LED light source, and it is not necessary to adjust the irradiation angle of the LED element, and thus it is necessary to perform complicated work. Disappears.

  In addition, when the LED light source side is viewed from the main light emission direction of the LED light source, the shade is set at an inclination angle at which the LED element is projected on the reflection surface of the shade, so that the main light emission from the LED element and the reflection of the shade are performed. A large amount of light can be obtained by a synergistic effect with the reflected light by projecting the LED element on the surface.

  In order to achieve the above object, the LED illuminating lamp according to the present invention includes a plurality of LED elements arranged substantially linearly on substantially the same plane to form an LED element array, and the plurality of LED element arrays are An LED light source disposed substantially on the same plane in parallel and a reflector plate formed in a gap between the LED element arrays so as to protrude in the main light emitting direction of the LED light source and having a reflecting surface on the surface thereof Prepare.

  Here, in the gap between the LED element arrays, the reflector is formed so as to protrude in the main light emitting direction of the LED light source, and has a reflecting surface on the surface thereof (for example, a reflecting plate formed by bending into a trapezoidal cross section). It is possible to obtain a constant high illuminance without causing the illuminance to fall within a certain range under the LED illumination lamp by reflecting light emitted from the LED element on the reflecting surface.

  Further, the LED elements are arranged on substantially the same plane to constitute the LED element array, and further, the plurality of LED element arrays are arranged on substantially the same plane to constitute the LED light source, that is, the LED light source is constituted. When the LED elements to be installed are arranged on substantially the same plane, when installed in the ceiling, the illuminating lamp itself protrudes from the ceiling surface like the LED illuminating lamp described in Patent Document 1. It becomes possible to install compactly.

  Further, the LED element array is formed in the gap between the LED element rows so as to protrude in the main light emitting direction of the LED light source, and a constant high illuminance can be obtained only by providing a reflecting plate on the surface thereof. Since the adjustment of the irradiation angle is not necessary, it is not necessary to perform complicated work.

  Further, by providing a reflection plate having a reflection surface on the surface thereof in the gap between the LED elements constituting the LED element array according to claim 3, all of the plurality of LED elements arranged on substantially the same plane are reflected. It is formed by the surface, and more efficient reflection is possible.

  Further, when the reflecting surface has a reflectance of 90% or more, extremely efficient reflection is realized, and for example, a brightness of 150% to 240% compared to a conventional reflector is obtained.

  Further, when the reflecting surface is made of an aluminum material, for example, the reflecting surface can have a high reflectance of 90% or more, and a shade having excellent lightness and durability can be obtained.

  In the LED lighting of the present invention, sufficient illuminance can be obtained without requiring a complicated operation such as adjustment of the irradiation angle of the LED element.

It is a cross-sectional schematic diagram for demonstrating an example of the LED illuminating lamp to which this invention is applied. It is a plane schematic diagram for demonstrating an example of the LED illuminating lamp to which this invention is applied. It is a three-dimensional schematic diagram for demonstrating an example of the shade of the LED illumination light to which this invention is applied. It is a cross-sectional schematic diagram which shows the other example of the LED illumination lamp to which this invention in FIGS. 1-3 is applied. It is a decomposition | disassembly schematic diagram for demonstrating the other example of the LED illuminating lamp to which this invention is applied. It is a cross-sectional schematic diagram for demonstrating the other example of the LED illumination lamp to which this invention is applied. It is a plane schematic diagram for demonstrating the other example of the LED illuminating lamp to which this invention is applied. It is a cross-sectional schematic diagram for demonstrating an example of the projector in the LED lighting to which this invention is applied. It is a plane schematic diagram for demonstrating an example of the projector in the LED illumination light to which this invention is applied. It is a three-dimensional schematic diagram for demonstrating an example of the projector in the LED illumination light to which this invention is applied. It is a schematic diagram for demonstrating the state of the LED element projected on the reflective surface of the shade of the light projector in the LED illuminating lamp to which this invention is applied. It is a schematic diagram for demonstrating the attachment state of the projector in the LED illumination light to which this invention is applied. It is a schematic diagram for demonstrating the light emission state of the light projector in the LED illumination lamp to which this invention is applied. It is a schematic diagram for demonstrating an example of the conventional LED illumination light.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings to provide an understanding of the present invention.

<Example 1>
FIG. 1 is a schematic cross-sectional view for explaining an example installed on a ceiling surface in an LED illumination lamp to which the present invention is applied, and FIG. 2 explains an example installed on the ceiling surface in an LED illumination lamp to which the present invention is applied. FIG. 3 is a three-dimensional schematic diagram for explaining an example of a shade of an LED illumination lamp to which the present invention is applied.

  The LED illuminating lamp 1 shown here includes a housing 4 provided with a wiring board 3 on which a plurality of LED elements 2 are mounted on substantially the same plane, and a shade 5 attached to the housing 4. ing.

  Here, the housing 4 is formed of an aluminum die cast having a high thermal conductivity and is lightweight, and a cylindrical LED housing portion 6 having an opening on the front surface thereof, and the LED housing portion 6 are integrally formed. It is comprised from the heat sink part 7 provided in series. The LED storage unit 6 in which the LED elements 2 are stored is an example of an LED light source.

  In addition, the wiring board 3 is attached in the LED housing portion 6, and the LED elements 2 are arranged radially on the wiring board 3 on substantially the same plane. Furthermore, a grid-like partition wall portion 20 is provided so as to surround each LED element 2, and a cover portion 8 formed of a translucent acrylic plate is attached to the opening end of the LED storage portion 6. The LED module 9 is fitted.

  Further, the heat sink plate portion 7 of the housing 4 is provided with a connection socket portion 10, and a connection terminal from the LED unit 11 for supplying a stable voltage and current to the LED element 2 to the connection socket portion 10. Are connected to each other.

  Next, the shade 5 is formed of an aluminum plate having a total light reflectance of approximately 95%, and a reflective surface 19 coated with titanium, silicon, or the like is formed on the inner surface thereof by a vacuum deposition method.

  Here, the opening edge of the housing 4 is connected to the upper end opening edge of the conical shade 5 so as to be fitted into the LED housing 6 as an LED light source and to surround the main light emitting direction from the LED module 9. A connecting metal fitting 13 is attached. The connection fitting 13 can be connected by a screw hole 14 drilled in the opening edge of the housing 4 and a fastening screw 15.

  In addition, a flange portion 16 extending horizontally outward is provided around the lower end opening edge of the shade 5, and a ceiling mounting screw 17 is erected and fixed to the back surface of the flange portion 16. Therefore, a hole (not shown) having a lower end opening diameter of the shade 5 is provided in the ceiling (not shown), and the upper end opening edge side of the shade 5 is inserted into the ceiling from the inside of the hole by the ceiling mounting screw 17. Lighting from the ceiling is possible by attaching to the ceiling.

The shade 5 is effective because the irradiation range is limited in the case of illumination from a relatively low height position by making the lower end opening width larger than the height.
Further, by making the lower end opening width smaller than the height of the shade 5, it is effective in that the irradiation range can be increased downward in the case of illumination from a high ceiling such as a warehouse or factory.

  Further, the shade 5 in the present embodiment details the conical shape, but it does not necessarily have to be a conical shape, and may be a rectangular or pentagonal cylindrical pyramid-shaped cylinder. Absent.

  In the LED illuminating lamp having the above-described configuration, light diffused at a predetermined angle or more out of light emitted from the LED light source having a wide irradiation range adjusted by arranging a plurality of LED elements on substantially the same plane is By reflecting on the reflecting surface 19 on the inner surface of the shade 5 and irradiating it within a predetermined range below, it becomes possible to obtain a constant high illuminance without lowering the illuminance.

  Further, since the irradiation range is determined by the shade 5, it is not necessary to have a structure in which the wiring board protrudes downward, and even if the LED element 2 is arranged on substantially the same plane, it is sufficient. High illuminance can be realized.

<Example 2>
FIG. 4 is a schematic diagram for explaining another example of the LED illuminating lamp detailed in FIGS. 1 to 3.

  In the LED lamp 1 shown here, a housing 4 provided with a wiring board 3 on which a plurality of LED elements 2 are mounted on substantially the same plane is attached to an upper part of an annular ceiling embedding board 22. In addition, an umbrella portion 24 suspended by a support frame 23 is provided below the ceiling-embedded substrate 22.

  Here, the housing 4 is formed of an aluminum die cast having a high thermal conductivity and is lightweight, and a cylindrical LED housing portion 6 having an opening on the front surface thereof, and the LED housing portion 6 are integrally formed. It is comprised from the heat-radiating plate part 7 provided continuously. The LED storage unit 6 in which the LED elements 2 are stored is an example of an LED light source.

  As described in detail with reference to FIG. 2, the wiring board 3 is attached in the LED housing 6, and the LED elements 2 are radially arranged on the wiring board 3 on substantially the same plane. Furthermore, a grid-like partition wall portion 20 is provided so as to surround each LED element 2, and a cover portion 8 formed of a translucent acrylic plate is attached to the opening end of the LED storage portion 6. The LED module 9 is fitted.

  Further, the heat sink 7 of the housing 4 is provided with a connection socket 10, and a connection terminal from the LED unit 11 for supplying a stable voltage and current to the LED element 2 to the connection socket 10. Connected configuration.

  Next, in the umbrella portion 24, the upper end opening edge is connected to the opening edge of the housing 4 so as to be fitted into the LED housing portion 6 as an LED light source and surround the main light emitting direction from the LED module 9. ing. A conical shade 5 whose lower end opening edge is anchored to the opening edge of the umbrella portion 24 is attached.

  The shade 5 is formed of an aluminum plate having a total light reflectance of approximately 95%, and a reflective surface 19 coated with titanium, silicon, or the like is formed on the inner surface thereof by a vacuum deposition method.

In the LED illumination lamp having the above-described configuration, a plurality of LED elements are arranged on substantially the same plane.
As a result, light diffused by a predetermined angle or more out of light emitted from the LED light source whose irradiation range is widely adjusted is reflected by the reflection surface 19 on the inner surface of the shade 5 and is irradiated within the predetermined range below. It is possible to obtain a constant high illuminance without falling.

  Here, in a store with a ceiling height of 3.5 m, another example of a conventional lighting apparatus using a mercury lamp with a ceiling light source and a light source of 150 W, and another example of the LED lighting lamp of the present invention using a 26 W white LED The illuminance measurement on the floor surface was performed using the (illuminating lamp shown in FIG. 4). Here, the illuminance measurement was performed in a state where the surrounding illumination lamps were lit under the same conditions.

  As a result, the illumination intensity was 482 LUX in the case of the conventional mercury lamp and 724 LUX in the case of the LED illumination lamp of the present invention. Thereby, the illuminance is higher in the case of another example of the 26W LED lighting lamp of the present invention, which is about 17% power consumption with respect to a mercury lamp with 150W power consumption, and a large power consumption of about 85%. Reduction is possible.

  In the same manner as described above, in a store with a ceiling height of 3.5 m, a conventional lighting fixture using a 150 W HID sodium lamp and a 26 W white LED are used. The illuminance measurement on the floor surface and the temperature measurement directly under the lamp were performed using another example of the LED illumination lamp (the illumination lamp shown in FIG. 4). Here, the illuminance measurement and the temperature measurement were performed with the surrounding illumination lamps turned off.

  As a result, the illuminance was 337 LUX in the case of the conventional 150 W HID sodium lamp, and 526 LUX in the case of the LED illumination lamp of the present invention. In addition, the temperature immediately below the conventional 150 W HID sodium lamp was 83.7 ° C., and the temperature directly below the LED lighting lamp of the present invention was 28.1 ° C.

  Thereby, it turned out that the illuminance of the other example of the LED lighting lamp of the present invention of 26 W, which is about 17% of the power consumption with respect to the mercury lamp of 150 W power consumption, is higher. Moreover, since the temperature immediately under the other example of the LED lighting lamp of the present invention is 28.1 ° C., the temperature directly under the conventional HID sodium lamp is 83.7 ° C., the temperature increase in the room is suppressed. At the same time, power consumption can be greatly reduced.

<Example 3>
FIG. 5 is an exploded schematic view for explaining an example of the LED lighting lamp to which the present invention is applied and which does not have a shade installed on the ceiling surface. FIG. 6 is a diagram illustrating an LED lighting lamp to which the present invention is applied. FIG. 7 is an explanatory plan view for explaining an example having no shade installed on the ceiling surface in the LED lighting to which the present invention is applied. .

  The LED lighting lamp 1 shown here has a plurality of LED elements 2 on a flat wiring board 3 at the open end of the LED housing portion 6 of a thin rectangular housing 4 attached to a ceiling or the like by mounting bolts and nuts 18. It is set as the structure by which 2 rows of LED elements are arrange | positioned substantially linearly on the same plane.

The plurality of LED element 2 rows are arranged substantially in parallel on the same plane, and an LED module 9A having a configuration in which a cover portion 8 formed of a translucent acrylic plate is mounted is fitted.
The LED storage unit 6 in which the LED elements 2 are stored is an example of an LED light source.

  This LED module 9A is formed of an aluminum plate having a total light reflectance of approximately 95% in the gap between the two LED elements on the wiring board 3 and the gap between the LED elements 2 belonging to the same row. A reflective plate 21 having a reflective surface 19 coated with titanium, silicon, or the like is formed on the surface by a vacuum deposition method.

  Here, the reflecting plate 21 formed in the gap between the LED element rows protrudes in the main light emission direction from each LED element 2 and is formed to be bent in a trapezoidal cross section. It is to be noted that the light emitted from each LED element 2 is reflected on the reflecting surface 19 and can be irradiated within a certain range by forming the reflecting surface 19 on the inclined surfaces on both sides of the trapezoidal cross section. It is said.

  The reflection angle of the reflection surface 19 is determined according to the mounting height of the LED illuminating lamp or the luminance and number of the LED elements, and it is desirable to set the reflection angle so that light is not diffused in the direction of the ceiling surface as much as possible. Is.

  In this embodiment, the LED elements 2 are arranged vertically and horizontally at regular intervals. However, it is not always necessary to arrange the LED elements 2 at regular intervals. For example, the LED elements 2 are irregularly arranged randomly. It does not matter.

  In the LED illuminating lamp having the above configuration, the LED elements 2 are irradiated by the reflecting plate 21 provided in the gap between the LED elements 2 arranged in a substantially straight line on the substantially same plane and between the LED elements 2 belonging to the same line. The reflected light is reflected on the reflecting surface 19 formed on the outer surface of the reflecting plate 21 in the housing 4 and irradiated within a predetermined range below, thereby obtaining a constant high illuminance without lowering the illuminance. It becomes possible.

  Moreover, a fixed irradiation range can be determined by providing the reflecting plate 21 in the gap between two LED elements arranged on a substantially straight line on a substantially same plane. For this reason, it is not necessary to have a structure in which the wiring board protrudes downward, and a flat and thin LED illumination lamp can be attached to the ceiling.

<Example 4>
FIG. 8 is a schematic cross-sectional view for explaining an example of a projector in the LED illumination lamp to which the present invention is applied. FIG. 9 is a schematic plan view for explaining an example of the projector in the LED illumination lamp to which the present invention is applied. These show the three-dimensional schematic diagram for demonstrating an example of the projector in the LED illumination light to which this invention is applied.

  The LED illuminating lamp 1 shown here includes a housing 4 provided with a wiring board 3 on which a plurality of LED elements 2 are mounted on substantially the same plane, and a shade 5 attached to the housing 4. ing.

  Here, the housing 4 is formed of an aluminum die cast having a high thermal conductivity and is lightweight, and a cylindrical LED housing portion 6 having an opening on the front surface thereof, and the LED housing portion 6 are integrally formed. It is comprised from the heat radiating plate part 7 provided continuously. The LED storage unit 6 in which the LED elements are stored is an example of an LED light source.

  In addition, the wiring board 3 is attached in the LED housing portion 6, and the LED elements 2 are arranged radially on the wiring board 3 on substantially the same plane. Furthermore, a grid-like partition wall portion 20 is provided so as to surround each LED element 2, and a cover portion 8 formed of a translucent acrylic plate is attached to the opening end of the LED storage portion 6. The LED module 9 is fitted.

  Further, an LED unit 11 for supplying a stable voltage and current to the LED element 2 is provided at the rear portion of the heat radiating plate portion 7 of the housing 4. An electric cord 34 is connected to the LED unit 11, and a plug 32 provided at the tip of the LED unit 11 is inserted into an outlet (not shown) so that an inverter (not shown) corresponds to a power source of 100V to 242V. The LED element 2 of the module 9 is turned on.

  Next, the shade 5 is formed of an aluminum plate having a total light reflectance of approximately 95%, and a reflective surface 19 coated with titanium, silicon, or the like is formed on the inner surface thereof by a vacuum deposition method.

  Here, the opening edge of the housing 4 is fastened to the upper end opening edge of the conical shade 5 so as to be fitted in the LED housing portion 6 as an LED light source and surround the main light emitting direction from the LED module 9. 15 are connected.

  Moreover, the opening edge of the housing 4 is provided with a stand connecting portion 25 for connecting the LED illuminating lamp 1 as a projector to a stand portion (not shown).

  The stand connecting portion 25 is bent at a substantially right angle with respect to the housing 4, and further a female screw portion 27 is perforated, and a fastening screw portion 26 is screwed thereto. The fastening screw portion 26 is provided with a dial 27 formed of hard plastic so as to be rotatable by hand.

  The reflection surface 19 of the shade 5 is formed with an angle such that the LED elements 2 of the LED modules 9 arranged along the inner peripheral edge of the LED housing 6 are projected.

  Thereby, as shown by the imaginary line in the drawing of FIG. 11, the LED element 2 provided in the LED storage portion 6 is arranged in a plurality of stages on the reflection surface 19 of the shade 5 when viewed in a planar shape from the opening side of the shade 5. It will be projected.

  In the LED illuminating lamp having the above configuration, as shown in FIG. 12, the fastening screw portion 26 is inserted into the insertion hole 31 drilled in the stand 30 attached to the ceiling surface A or the like, and the female screw of the stand connecting portion 25 is inserted. Screw onto the part 33.

  Further, the dial 27 is turned and fastened with the stand 30 sandwiched between the dial 27 and the stand connecting portion 25 so that the LED illumination lamp 1 can be fixed at a predetermined angle.

  In the LED illuminating lamp 1 thus attached to the stand 30, as described in detail with reference to FIG. 11, the LED elements 2 provided in the LED storage portion 6 are projected onto the reflecting surface 19 of the shade 5 in a plurality of stages.

  Here, as shown in FIG. 13, when a plurality of LED elements are arranged on substantially the same plane, the light emitted from the LED element 2 is irradiated within a predetermined range below, so that the illuminance decreases. It is possible to obtain a constant high illuminance without any problem.

  Further, the light emitted from the plurality of LED elements projected on the reflection surface 19 on the inner surface of the shade 5 is emitted from the shade 5 in the same manner as the light emitted from the LED elements 2 of the LED module 9, so that the amount of light increases. Thus, high brightness can be obtained.

  Further, since the irradiation range is determined by the shade 5, it is not necessary to have a structure in which the wiring board protrudes downward, and even if the LED element 2 is arranged on substantially the same plane, it is sufficient. High illuminance can be realized.

DESCRIPTION OF SYMBOLS 1 LED illumination light 2 LED element 3 Wiring board 4 Housing 5 Shade 6 LED accommodating part 7 Heat sink part 8 Cover part 9, 9A LED module 10 Connection socket part 11 LED unit 13 Connecting bracket 14 Screw hole 15 Fastening screw 16 鍔Part 17 Ceiling mounting screw 18 Mounting bolt / nut 19 Reflecting surface 20 Bulkhead part 21 Reflecting plate 22 Ceiling embedded substrate 23 Support frame 24 Umbrella part 25 Stand connecting part 26 Fastening screw part 27 Dial 30 Stand 31 Insertion hole 32 Plug 33 Female thread 34 Electric cord

Claims (6)

An LED light source in which a plurality of LED elements are arranged on substantially the same plane;
An LED illuminating lamp that includes a shade that surrounds the main light emitting direction of the LED light source and has a reflection surface on the inner surface thereof. The LED illumination lamp according to claim 1, wherein the shade has an inclination angle at which the LED element is projected on a reflection surface of the shade when the LED light source side is viewed from a main light emitting direction of the LED light source. An LED light source in which a plurality of LED elements are arranged substantially linearly on substantially the same plane to constitute an LED element row, and the plurality of LED element rows are arranged substantially in parallel on the same plane;
An LED illumination lamp comprising a reflector plate formed in a gap between the LED element rows so as to protrude in a main light emitting direction of the LED light source and having a reflecting surface on the surface thereof. The LED illuminating lamp according to claim 3, further comprising a reflecting plate having a reflecting surface on a surface thereof in a gap between the LED elements constituting the LED element row. The LED illumination lamp according to claim 1, 2, 3, or 4, wherein the reflecting surface has a reflectance of 90% or more. The LED illumination lamp according to claim 1, wherein the reflective surface is made of an aluminum material.

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