JP7011868B1 - LED lighting unit, LED lighting module and LED lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED lighting unit and an LED lighting device capable of reducing the work man-hours and installation man-hours of the LED lighting device. SOLUTION: A long LED board on which a plurality of LED packages are mounted, a wide-angle lens bar having a length substantially equal to that of the LED board, which spreads the emitted light emitted from the plurality of LED packages, and an input AC. An LED lighting unit having a waterproof DC power supply unit that converts voltage into DC and supplies DC power to the long LED substrate, and a male connector and a female connector for connection by a crossing wire with a connector. The wide-angle lens bar has a hollow shape and has an accommodating portion for accommodating the LED substrate and a diffusion surface for diffusing the emitted light, and the long LED substrate is accommodated in the accommodating portion of the wide-angle lens bar. It has an integrated structure. [Selection diagram] Fig. 1

Description

The present invention relates to an LED lighting unit, and more particularly to an LED lighting unit suitable for reducing the installation man-hours and work man-hours of an LED lighting device.

Conventionally, in outdoor lighting devices such as lighting signs, incandescent lamps and fluorescent lamps have been used as light sources. In recent years, it has become possible to increase the output of LEDs as point light sources and to save power. Therefore, not only indoor lighting devices but also outdoor lighting devices, the light source is rapidly being replaced by LEDs from incandescent lamps and fluorescent lamps.

Since the outdoor lighting device is installed outdoors, it is desirable to have a waterproof structure. This is because if the structure is not waterproof, rainwater or the like may cause corrosion or short circuit of the wiring of the LED board.

As an example of a lighting device having a waterproof structure, for example, Japanese Patent No. 5403775 (Patent Document 1) can be mentioned. The lighting device of Patent Document 1 realizes a signboard lighting device having a simple structure and excellent waterproofness. As described in FIG. 3 of the above-mentioned publication, this illuminating device has a lens unit having an incident surface 21a on which light is incident and emission surfaces 21b and 21c that diffuse the light incident on the incident surface 21a and emit it to the outside. A translucent member 2 having 21 and having the same cross-sectional shape in the longitudinal direction, a substrate 3 arranged inside the translucent member 2 along the longitudinal direction, and a substrate 3 mounted on the substrate 3 to transmit light. The structure is provided with an LED module 30 that emits light to the incident surface 21a of the sex member 2.

Examples of other LED-illuminated signboard devices include, for example, Japanese Patent Application Laid-Open No. 2011-227352 (Patent Document 2). In the lighting device of Patent Document 2, the LED lighting device is installed at an angle near both ends of the box-shaped signboard, and the entire inside of the device is illuminated by using the angle (strong directivity) of the LED.

Japanese Patent No. 5403775 Japanese Unexamined Patent Publication No. 2011-227352

In the above Patent Document 1, since the light incident by sealing both ends of the lens is diffused and emitted in the width direction of the substrate orthogonal to the longitudinal direction of the lamp, the light only in the orthogonal direction of the lamp (= no light in the longitudinal direction of the lamp). In the case of), there is a problem that the end of the lamp becomes dark (see FIG. 19A). In addition, since it is often the case that the lamps are lined up continuously in actual lighting arrangement, in this case, it is necessary to overlap the end portions of the lamps in order to cover the dark part, and there is a problem that light loss (light loss) occurs. (See FIG. 19 (b)).

In the above Patent Document 1, as described in paragraphs [0027] and [0053], there is only a description that "power is supplied from a power source (not shown)", and a connection considering waterproofness with the power source and a place for storing the power source are provided. No consideration was given to the location (installation location).
The shape of the translucent member is an acute-angled M-shaped structure. This is to facilitate extrusion molding. However, in terms of lens performance, the diffusion performance is lowered. In order to make up for this, the translucent member contains a diffusing material, but there is a risk that the lens performance will be uneven due to variations in the diffusing material.

In Patent Document 2, since the LED lighting device is tilted (at an angle) near both ends of the box-shaped lighting signboard to emit light, it is difficult to adjust the angle, and if the adjustment is not successful, uneven lighting occurs. There was a problem.

An object of the present invention is to solve such a conventional problem and to provide an LED lighting unit, an LED lighting module, and an LED lighting device suitable for reducing the installation labor and the work labor of the LED lighting device.

In order to solve the above problems, the LED lighting unit of the present invention has the following configuration.
A long LED group with multiple LED packages mounted,
A wide-angle lens bar with a length almost equal to that of the LED board that spreads the emitted light emitted from the plurality of LED packages, and a DC power source is supplied to the long LED board by converting the input AC voltage into DC. An LED lighting unit having a waterproof DC power supply unit, a waterproof male connector and a waterproof female connector for connecting by a crossing wire with a connector, and the wide-angle lens bar has a hollow shape and accommodates the LED substrate. The long LED substrate is housed in the accommodating portion of the wide-angle lens bar to form an integrated structure, and the waterproof DC power supply unit is the substrate of the accommodating portion. The waterproof male connector and the waterproof female connector are installed at one end, and the waterproof cable is pulled out from the waterproof DC power supply unit by a crossing wire with a connector. The maximum angle of the light distribution of the LED light source to which the LED package is mounted is 181.5 degrees (corresponding to claim 1).

In addition to the above structure, the diffusion surface has a fine structure in the upper half and a coarse structure in the lower half (corresponding to claim 2).

An LED lighting module (corresponding to claim 3) in which a plurality of LED lighting units according to paragraph [0011] or [0012] are connected in addition to the above configuration.

An LED lighting device having at least one LED lighting unit according to paragraph [0011] or [0012] in addition to the above configuration (corresponding to claim 4).

An LED lighting device (corresponding to claim 5) comprising at least one LED lighting module described in paragraph [0013].

In addition to the above configuration, the wide-angle lens bar is an LED lighting unit manufactured by high-precision optical extrusion molding (corresponding to claim 6).

According to the present invention, it is possible to realize an LED lighting unit and an LED lighting device suitable for reducing the installation man-hours and the work man-hours of the LED lighting device.

The drawings show specific embodiments of the invention according to the present disclosure, including not only the essential configurations of the invention, but also selective and preferred embodiments.
The block diagram of the LED lighting unit of this embodiment. The exploded block diagram of the LED lighting unit of this embodiment. (A) (b) The figure for demonstrating the relationship between the wide-angle lens bar and the long LED in the LED lighting unit of this embodiment. Sectional drawing of the wide-angle lens bar in the LED lighting unit in this embodiment. The figure which shows the example which applied the LED lighting unit of this embodiment to a signboard. The figure which shows the example which connected the LED lighting unit of this embodiment. The figure which shows the example which installed the connection LED lighting unit of FIG. 6 on a signboard. The figure which shows the example of the power supply unit separation of the LED lighting unit of this embodiment. FIG. 8 is an exploded configuration diagram of the LED lighting unit of FIG. The block diagram of the LED lighting unit of the LED lighting module connection type of this embodiment. The exploded block diagram of the LED lighting unit of FIG. The figure which shows the example of the signboard which installed the LED lighting unit of this embodiment horizontally. The comparative test explanatory drawing of the LED lighting unit application signboard and the conventional signboard of this embodiment. The figure which shows the comparative test result of FIG. (A) (b) The figure which shows the example which provided the slit for diffusion in the wide-angle lens bar of the LED lighting unit of this embodiment. The figure which shows the light distribution characteristic measurement result of the LED package. (A) (b) Configuration diagram of a long tape type lighting unit of another embodiment. The figure which shows the example which applied the lighting unit of FIG. 17 to a signboard. The figure for demonstrating the conventional problem. The figure which shows the example of the single-sided light emitting signboard to which the LED lighting unit of this embodiment is applied.

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

<Embodiment>
1 is a configuration diagram of the LED lighting unit of the present embodiment, FIG. 2 shows an exploded configuration diagram of the LED lighting unit of the present embodiment, and FIGS. 3A and 3B are the LED lighting units of the present embodiment. It is a figure for demonstrating the relationship between a wide-angle lens bar and a long LED.

Hereinafter, the configuration of the LED lighting unit of the first embodiment will be described with reference to FIGS. 1, 2, and 3 (a) and 3 (b).

<Structure>
As shown in FIGS. 1, 2, and 3 (a) and 3 (b), this LED lighting unit includes a long LED substrate 1, an integrated wide-angle lens bar 2, a power supply end cap 3, and a power supply end cap. Top 3a, power supply end cap bottom 3b, waterproof cable 4, waterproof male connector 5, waterproof female connector 6, end cap 7, screws 8, 9, waterproof DC power supply 10, screw 11, It is composed of 12 and the LED package 13.

In the "long LED substrate" 1, a plurality of LED packages 13 are mounted on an aluminum substrate, which constitutes a light source of an LED lighting unit. As the LED package 13, for example, a middle power LED series 2835, 0.2W, 3V, Ra80 manufactured by Samsung Korea can be used. The size of this LED package is 2.8 x 3.5 x 0.65 mm. The LED package can be mounted on a double-sided circuit using an aluminum board (the LED side is a DC circuit and the back side is an AC circuit, and a lead wire lead-out structure can be adopted from both ends of the aluminum board. When manufacturing a signboard, an epoxy resin substrate may be adopted, and the electric wire lead-out may be configured as one end pull-out.
The length of the LED substrate is, for example, about 300 mm, 600 mm, 900 mm, 1200 mm, 1500 mm, or the like. An LED substrate of such a size is appropriately selectively used according to, for example, the size of a single-sided light emitting signboard. Further, when manufacturing an original signboard, the length of the LED board can be set to an arbitrary length, and a signboard using an LED board having an arbitrary length can be manufactured (manufactured).

The "wide-angle lens bar" 2 has a length substantially equal to that of the LED substrate 1 that spreads the emitted light emitted from the plurality of LED packages. The wide-angle lens bar 2 has a hollow shape, and has an accommodating portion for accommodating the LED substrate 1 and a diffusing surface for diffusing emitted light (see FIGS. 15 (a) and 15 (b) below). The diffusion surface may have a structure in which the upper half has a fine structure and the lower half has a rough structure, for example. This fine structure or rough structure is not always indispensable, and can be appropriately selected and adopted according to the required specifications of the desired single-sided light emitting signboard.
The material of the wide-angle lens bar 2 is a resin material, and for example, PVC, RR, PE, ABS, PS, PS, PET, PC, PMMA and the like can be used. In this embodiment, a polycarbonate resin is used and manufactured for high-precision optical extrusion molding using a high-precision extruder. This is because the desired lens performance could not be obtained by ordinary resin extrusion molding.
The high precision extruder (1) has higher temperature, humidity and control accuracy, and the cleanliness of raw material extrusion is higher. (2) The temperature of the material melted during extrusion can be controlled with high accuracy. (3) Extrusion pressure High-precision control controls the amount of flowing material better.

The high-precision extruder uses pre-processed steel as the material of the mold, has a high altitude of 50HRC as the mold processing technology, has a high material density, has a cleanliness RA0.012 after surface treatment (mirror engraving, polishing), and is resistant to corrosion. Have. The mold has high hardness and cleanliness and is stable. In addition, molding is highly accurate and stable. The high-precision extrusion manufacturing process divides extrusion into three stages, "pre-molding", "molding modification", and "final high-precision molding", and controls the product structure and cleanliness well to meet optical requirements (optical performance). Higher specs can be achieved.

15 (a) and 15 (b) show a schematic cross section in which the long LED substrate 1 is mounted on the wide-angle lens bar 2 manufactured in this manner, and FIG. 4 shows a detailed cross section. As shown in FIG. 4, a long LED substrate was housed in a housing portion of a wide-angle lens bar to form an integrated structure. The method of fixing the wide-angle lens bar 2 of the long LED substrate 1 is performed by fixing with an adhesive, fitting into an aluminum extrusion (fitting and killing), or the like. As shown in FIG. 15A, the wide-angle lens bar 2 has an upper diffusion surface 62 having a fine structure in the upper half and a lower diffusion surface 63 having a coarse structure in the lower half. As shown in FIG. 15B, the surfaces 62 and 63 may have a slit-shaped 64 structure.

Hereinafter, the light distribution characteristics of the wide-angle lens bar integrated LED light source having the configuration shown in FIG. 4 have been actually measured, and the results will be described below. As the measuring device, a goniometer (light distribution measuring device) of "G0-2000" manufactured by everfine was used. The measurement conditions were that the input voltage to the wide-angle lens bar was DC60V and the input current to the wide-angle lens bar was 80mA.
As shown in FIG. 4, the emitted light emitted from the LED package 13 is diffused by the diffusion surface 14, and the diffused emitted light 15 is diffused and emitted from the wide-angle lens bar 2. The printed circuit board is 0.7 mm, the width of the LED package is 3.5 mm, the height of the housing is 1.5 mm, the width is 20.5 mm, and the diffusion angle is 181.5 degrees. FIG. 16 shows the light distribution curve of the LED light source in which the LED package 13 is mounted on the integrated wide-angle lens bar 2. In FIG. 16, it is C0 / 180 degrees, 109.5 °, C30 / 210 degrees, 136.4 ° C60 / 240 degrees, 181.5 °, C90 / 270 degrees, 167.1 °. The average luminous flux angle is 50% and 148.6 degrees. When only the LED package is used as the light source, the maximum luminous flux is obtained directly under the light emitting portion, the portion near the light emitting portion is bright, and the portion near the light emitting portion becomes dark. When the wide-angle lens bar 2 is used, as shown in the light distribution diagram of FIG. 16, the light emitting portion becomes a state close to flat, whereby surface emission can be uniformly and uniformly irradiated.

The "power supply end cap" 3 has a built-in waterproof DC power supply device, is composed of a power supply end cap upper 3a and a power supply end cap lower 3b, and is filled with silicon resin or the like to form a waterproof power supply unit. The power supply end cap upper 3a and the power supply end cap lower 3b are attached by screws 11 and 12. The waterproof specification is IP65.

The "waterproof cable" 4 is a waterproof cable.

The "waterproof male connector" 5 is a connector for supplying external AC power, and has a male structure for connection by a crossover wire with a connector.

The "waterproof female connector" 6 is a connector for connecting to a waterproof male connector of another LED lighting unit by a crossing wire with a connector, and has a female structure. Needless to say, in the case of the final end, it is not necessary to connect with other devices.

The "end cap" 7 is a transparent cover for termination and is attached by screws 8 and 9. Since the end cap of the emitted light of the LED light source is transparent, the end portion does not become dark and the surroundings can be illuminated.

The "waterproof DC power supply device" 10 is an IP65 waterproof DC power supply unit that converts an input AC voltage into DC and supplies DC power to a long LED substrate 1.

For example, as shown in FIG. 5, the lighting signboard can be assembled simply by installing the LED lighting units 21, 22, 23, and 24 on the signboard body 20 and connecting the connecting portions 25, 26, and 27 with connectors. The input voltage corresponds to AC100V to 200V. FIG. 6 shows a state in which a plurality of LED lighting units are connected. FIG. 7 shows a perspective view of the lighting signboard of FIG. In the example of FIG. 6, the LED lighting unit main body L-shaped connection and the waterproof cable are connected. As shown in FIG. 7, the LED lighting units are arranged vertically with respect to the one-sided horizontally long signboard, but the LED lighting units may be arranged horizontally in consideration of maintainability. In this case, a long waterproof cable as shown in FIG. 12 may be used, and a single-sided substrate may be configured with one end of the power supply. The LED lighting unit is attached to the signboard body by a removable method such as screwing to replace the LED lighting unit.

Hereinafter, the configurations of other lighting units of the embodiment will be described with reference to FIGS. 8 and 9.

<Structure>
As shown in FIG. 8, this LED lighting unit includes an LED package 13, a long LED substrate 1, an integrated wide-angle lens bar 2, end caps 7 and 31, an upper power cap 30a, and a lower power supply cap. 30b, waterproof cable 4, waterproof male connector 5, waterproof female connector 6, end cap upper 31a, end cap lower 31b, mounting holes 34, 35, screws 32, 33, 36, 37, waterproof It is composed of type DC power supply devices 10 and 30.
FIG. 8 is the same as the above-described embodiment of FIG. 1 except that the wide-angle lens bar and the waterproof DC power supply unit are connected by a waterproof cable (electric wire), and thus the description thereof will be omitted.

The "preventive DC power supply device" 30 adopts a structure separate from the wide-angle lens bar. .. By adopting such a separate configuration, the degree of freedom in the installation layout can be ensured.
The mounting holes 34 and 35 are also provided on the opposite sides of the end caps, and are fixedly installed on the signboard body by screwing.

FIG. 10 is a diagram showing an example of an LED lighting unit having two LED lights, and FIG. 11 is an exploded view of the two-lamp type LED lighting unit of FIG.

As shown in FIG. 10, in the two-lamp LED lighting unit 41, an LED lighting module 44 with a waterproof DC power supply device and an LED lighting module 45 without a waterproof DC power supply device are concentrated by a waterproof cable 53, and a power supply end is provided. The caps 51a and 51b and the end caps 52a and 52b form an end portion, and one prevention male connector 5 or one waterproof female connector 6 is provided at both ends. With such a configuration, the number of parts can be reduced, so that the cost can be reduced.
The LED lighting unit 42 also has the same configuration as the LED lighting unit 41 described above, and is connected by a connecting portion 43.

13 and 14 show the results of comparative illuminance test measurement between the single-sided light emitting signboard manufactured by the LED lighting unit (with wide-angle lens bar) of the present embodiment and the single-sided light emitting signboard manufactured by the conventional LED lighting unit (without wide-angle lens bar). Is shown. The experimental environment will be described. As the illuminometer, "V08111" manufactured by everfine was used. The measurement conditions were that the input voltage to the wide-angle lens bar was AC110V and the input current to the wide-angle lens bar was 0.1633mA. The specifications of the single-sided signboard, which is a test device, will be described. The size of the single-sided signboard is 700 mm x 1400 mm in width, 3 LED lighting units are screwed to the signboard body (LED package uses the above-mentioned Samsung 2835), milky white acrylic cover (plate thickness 3 mm, transmittance 54.4) %) The same conditions were used for the mounting structure and 15 points (points) of illuminance measurement points. Further, the LED package light source of the LED lighting unit was the same, and the comparative illuminance measurement was performed with and without the wide-angle lens bar. The illuminance measurement result is as shown in FIG. In the case of having a wide-angle lens bar, the minimum value was 6010 lux, the maximum value was 8110 lux, the average value was 6963 lux, and the uniformity was 75% from the measurement results of FIG. In the case of no wide-angle lens bar, the minimum value was 4564 lux, the maximum value was 8338 lux, the average value was 6061 lux, and the uniformity was 58% from the measurement results of FIG.
From the above measurement results, it was found that the illuminance can be significantly improved with the wide-angle lens bar. That is, an improvement in the degree of uniformity was observed.

20 (a) and 20 (b) are views showing an example of a single-sided light emitting signboard to which the LED lighting unit of the present embodiment is applied. FIG. 20A shows a state in which the LED lighting unit of the present embodiment is installed horizontally on a single-sided signboard and the cover of the signboard is removed. It is a schematic representation of the LED lighting unit, and the installation state is as shown in FIG. 12 in detail. FIG. 20B shows an example of an FF (flexible face) openable facade signboard, and the signboard shows an example of a signboard of a Chinese restaurant. This signboard is a signboard that can be opened and closed for easy maintenance. When replacing the LED lighting unit, the signboard carver can be opened with a support rod (not shown) to easily remove the LED lighting unit. In addition, the structure is easy to clean. Naturally, the signboard device itself using this LED lighting unit is also waterproof.

As described above, according to the LED lighting unit of the present embodiment, since the LED lighting unit structure is equipped with a waterproof DC power supply device, when applied to a lighting signboard, the installation man-hours and the work man-hours of the worker can be reduced. ..

17 (a) and 17 (b) are partial block views of the lighting unit of another embodiment. Another embodiment is a line light source type lighting unit that employs an FCOB tape light as a light source instead of a long LED substrate in which a plurality of LED package light sources are arranged. 17 (a) and 17 (b) show an example in which the FCOB tape light 65 is adhered to a substrate with an adhesive and accommodated in the accommodating portion of the integrated wide-angle lens bar 2 characteristic of the present embodiment. FCOB tape light is a seamless & dotless tape light, and all the yellow or white fluorescent resin parts shine, and the light is on the line without dots. FIG. 18 shows an example in which the lighting unit of FIG. 17 is applied to a signboard. FIG. 18 shows a configuration in which the lighting units 71, 72, 73, 74 are attached to the signboard main body 70 by screwing, and the connecting portions 75, 76, 77 are connected by connector crossover wiring. The circled figure in FIG. 18 shows an enlarged view of the inside of the wide-angle lens bar 2. The upper part of the FCOB tape light 65 is the line light source 66.

As described above, according to the other embodiment, the lighting unit irradiates the dotless line-shaped light which is not found in the LED light source. Therefore, in addition to the effect of the present embodiment, the lighting unit having less uneven illuminance can be used. realizable.

1 Long LED board 2 Integrated wide-angle lens bar 3 Power supply end cap 3a Power supply end cap top 3b Power supply end cap bottom 4 Waterproof cable 5 Waterproof male connector 6 Waterproof female connector 7 End cap 8, 9 screws 10 Waterproof DC power supply device 11 , 12 screws

Claims (6)

A long LED board with multiple LED packages mounted on it,
A wide-angle lens bar having a length almost equal to that of the LED substrate, which spreads the emitted light emitted from the plurality of LED packages,
A waterproof DC power supply unit that converts the input AC voltage to DC and supplies DC power to the long LED board.
An LED lighting unit having a waterproof male connector and a waterproof female connector for connecting with a crossover wire with a connector.
The wide-angle lens bar has a hollow shape, has an accommodating portion for accommodating the LED substrate, and has a diffusing surface for diffusing the emitted light.
The long LED substrate is housed in the housing portion of the wide-angle lens bar to form an integrated structure.
The waterproof DC power supply unit is installed at one end of the substrate of the housing portion, and the waterproof male connector and the waterproof female connector have a structure in which a waterproof cable is pulled out from the waterproof DC power supply unit by a crossing wire with a connector, and the housing is described. An LED lighting unit characterized in that an end cap of a transparent cover for termination is provided at the other end of the portion, and the maximum angle of the light distribution of the LED light source to which the LED package is mounted is 181.5 degrees . The LED lighting unit according to claim 1, wherein the diffusion surface has a fine structure in the upper half and a coarse structure in the lower half. An LED lighting module according to claim 1 or 2, wherein a plurality of LED lighting units are connected. An LED lighting device having at least one LED lighting unit according to claim 1 or 2. An LED lighting device comprising at least one LED lighting module according to claim 3. The LED lighting unit according to claim 1 or 2, wherein the wide-angle lens bar is manufactured by high-precision optical extrusion molding.

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