JP6016575B2 - LED lighting device - Google Patents

Description

  The present invention relates to an LED lighting device attached to an outdoor column or the like, and more particularly to an LED lighting device provided with an automatic flasher.

In recent years, with increasing environmental awareness, LED lighting devices using LED elements with excellent power savings as light sources have been actively used, such as road lights, parking lot lights, It is also used for security lights. Conventionally, these outdoor lights have built-in automatic flashers that automatically turn on and off by detecting the brightness of the outside light. Is provided. In addition, it prevents the automatic flasher from malfunctioning due to the light of the lighting device itself (Patent Document 1), the headlight of an automobile or the reflected light of the lighting device itself (Patent Document 2), etc. Lighting fixtures that have been devised to do so are known.

In the lighting apparatus described in Patent Document 1, the automatic flasher and the lamp are covered with a light-transmitting cover, and the lamp that reflects the inside of the cover is covered by the cover that faces the light receiving unit of the automatic flasher. A light-blocking body is provided to block the light from the lamp, and the lower part of the light-blocking body that covers the light-receiving part of the automatic flasher is embedded in the cover, preventing the light from the lamp itself from entering the light-receiving part. doing.
Moreover, in the lighting fixture described in Patent Document 2, the head of an automobile has a structure in which a concave portion is formed on the upper surface portion of the fixture main body, and the light receiving portion of the automatic flasher is located in the concave portion and is attached to the fixture main body. Light and reflected light are prevented from entering the light receiving section.

JP-A-3-216908 JP-A-9-274809

However, the luminaire described in Patent Document 1 has a structure in which a light shielding body is attached in the thickness direction of the cover, so that it takes time to manufacture, and the light receiving part faces the road surface side, so that the surrounding light is detected. It is easy to do, and there is a risk that the light will go out despite the sun setting.
In addition, in the lighting fixture described in Patent Document 2, the light transmittance of the lighting window decreases due to dust and water accumulated in the recesses on the upper surface of the fixture body with long-term use. If there is a high building in the vicinity, there is a risk of malfunction due to the light leaking from it.

The present invention has been made as a result of intensive studies to solve the above-described problems, and provides an LED lighting device that prevents an automatic flasher from malfunctioning.

In the invention described in claim 1, in the LED lighting apparatus having an LED lamp main body with a built-in automatic flashing device and mounting means for fixing the LED lamp main body to a mounted body, the automatic flashing device A daylighting portion for taking in external light is provided on the outer shell of the LED lamp body on the side facing the mounted body.

  In the invention according to claim 2, the mounting means has a shape in which the daylighting portion does not obstruct the daylighting of the external light, and the mounting means is provided on the side of the LED lamp body on the side facing the mounted body. It is attached to an outer shell, and the daylighting part is provided at a connection position between the LED lamp main body and the attachment means.

The invention according to claim 3 is characterized in that the attachment means has a lower surface and two side surfaces, and the cross section is formed in a U-shape.

According to a fourth aspect of the present invention, the daylighting unit is provided with a ridge having an open bottom surface.

According to the present invention, the relatively simple configuration prevents the automatic flasher from malfunctioning over a long period of time without being affected by the LED light of the illuminating device, its reflected light, or external artificial light. A highly reliable LED illuminating device that turns on when the sun goes down and darkens and turns off when the sun rises and brightens is obtained.

External view of LED lighting device and attached means according to this embodiment The external appearance perspective view which looked at the LED lighting apparatus concerning this embodiment from back External perspective view of the LED lighting device according to this embodiment as seen from the front XX line sectional perspective view of the LED lighting device concerning this embodiment Rear view of the LED lamp body according to this embodiment Enlarged cross-sectional perspective view around the mounting means according to the present embodiment Enlarged cross-sectional perspective view around the automatic flasher according to the present embodiment The exploded perspective view of the LED lighting device concerning this embodiment

  Preferred embodiments of the present invention will be described below with reference to the drawings. This embodiment is an example, and the present invention is not limited to this. FIG. 1 is an external view in which the LED lighting device 100 of the present embodiment is attached to a support column 200 that is an attached body. FIG. 2 is an external perspective view of the LED lighting device 100 according to the present embodiment as viewed from behind. FIG. 3 is an external perspective view of the LED lighting device 100 according to the present embodiment as viewed from the front. FIG. 4 is a cross-sectional perspective view taken along line XX of the LED lighting device 100 according to the present embodiment. FIG. 5 is a rear view of the LED lamp body 10 according to the present embodiment. FIG. 6 is an enlarged cross-sectional perspective view around the attachment means 20 according to the present embodiment. FIG. 7 is an enlarged cross-sectional perspective view around the automatic flashing device 6 according to the present embodiment. FIG. 8 is an exploded perspective view of the LED lighting device 100 according to the present embodiment.

  The LED lighting device 100 according to the present embodiment is a security light that is used by being attached to a support column 200 provided outdoors as an attached body. The LED lamp body 10 and the LED lamp body 10 are attached to the support column. And an arm 20 which is an attachment means for the purpose. In addition, a to-be-attached body may be not only a support | pillar but a wall surface, a frame, etc.

The outer periphery of the LED lamp main body 10 includes a housing 11 having a lower surface opening and a translucent cover 12 that covers the lower surface opening.
As shown in FIG. 4, the LED lamp body 10 has an LED board 2 on which a plurality of LED elements 1 are mounted, a support plate 3 on which the LED board 2 is mounted, and a power supply box in which a lighting circuit board 4 is built. 5 and the automatic flasher 6 are generally accommodated.

  The arm 20 uses a steel plate, and the cross section of the arm 20 is formed in a U shape. The arm 20 has an arm lower surface 21 and two arm side surfaces 22 and 23, and is bent in a U shape in the direction of the support column 200. It is shaped to As shown in FIG. 1, one end side of the arm 20 is inserted and fixed to the LED lamp body 10 so that the opening of the arm 20 faces upward, and the other end side uses a simple mounting bracket 210. To be attached to the column 200.

The casing 11 is formed into a long and narrow ship shape using polybutylene terephthalate resin. The housing 11 is formed with an opening surface surrounded by a substantially rectangular parallelepiped frame on the side facing the road surface to be irradiated when attached to the support column 200 (FIG. 3). Further, as shown in FIG. 5, the outer shell on the back side of the casing 11 facing the mounted body has an upward U-shaped through slit 13 (shaded portion in FIG. 5) corresponding to the cross-sectional shape of the arm 20, A daylighting unit 14 for taking in external light into the automatic flashing device 6 and a substantially U-shaped bowl 15 provided on the upper side of the daylighting unit are provided.
The arm 20 is fixed to the LED lamp body by inserting the tip of the arm 20 into the through slit 13. In the present embodiment, the arm 20 is inserted up to about half of the longitudinal direction of the housing 11, but may be inserted over the entire length.

The daylighting unit 14 is provided in the outer shell of the housing 11 as described above, and is provided so as to be located in a portion surrounded by the arm 20 and the flange 15 through the outer wall of the housing 11. Moreover, the cap made from silicone is attached to the lighting part 14 for dust prevention and waterproofing. In this embodiment, the daylighting unit is a circular window. However, the present invention is not limited to this, and an elliptical, rectangular window, or slit shape may be used.
The translucent cover 12 is formed into a ship shape using a polycarbonate resin, and is attached to the housing 11 so as to cover the LED substrate 2.

As the LED element 1, various known LEDs can be used. In this embodiment, a high-luminance type LED element that emits white light for illumination is used. A chip-on-board type LED module may be used.

The LED substrate 2 is a long flat plate and a known printed circuit board such as a glass epoxy substrate, a metal substrate, or a ceramic substrate is used. In the present embodiment, a printed circuit board made of a metal substrate coated with an electrically insulating resin is used, and the LED element 1 is mounted on one side. Further, a plurality of lenses 7 are arranged on the LED substrate 2 so as to obtain a desired light distribution so as to cover each LED element, and are fixed by a lens fixing member 8.

The support plate 3 is a long aluminum flat plate, and as shown in FIG. 8, extends from the LED substrate placement surface 31 and the three sides of the LED substrate placement surface to the translucent cover side. It is formed as a box having a lower opening made up of the side surface 32. The LED substrate 2 is bonded to the LED substrate mounting surface 31, and one end on the short side of the support plate 3 is attached to the end of the arm 20.

The lighting circuit board 4 is a flat printed board, and is housed in the power supply box 5 so as to be parallel to the LED board 2.
The power supply box 5 is a substantially rectangular parallelepiped polybutylene terephthalate box, and includes a power supply box main body 51 on which a lighting circuit board is placed and a power supply box lid 52.
As shown in FIG. 6, the power supply box 5 is disposed between the arm lower surface 21 and the translucent cover 12 on the side close to the daylighting unit. That is, the power supply box is disposed in a portion of about 1/3 in the longitudinal direction of the casing 11 on the side close to the daylighting unit, and the support plate 3 is disposed in the remaining approximately 2/3. The power supply box main body is fixed with screws to a boss (not shown) that is erected from the inner wall of the upper surface of the housing 11 shown in FIG.

As shown in FIG. 6, the automatic flasher 6 is an instrument that includes an automatic flashing control board 61 and a light / dark sensor 62, and controls lighting and extinction with a set brightness as a boundary. Between the lower surface 21, the light / dark sensor 62 is disposed so as to face and be close to the daylighting unit 14. As shown in FIG. 7, the automatic flashing control board 61 is sandwiched by a plurality of ribs 16 erected from the inner wall of the housing 11, and pressed and fixed by the ribs 17 erected from the outer wall of the upper surface of the power supply box body 51. Yes.
With this arrangement structure, the automatic flasher 6 is shielded by the support plate 3, the power supply box 5, the arm lower surface 21, and the arm side surfaces 22, 23 inside the housing 11, so that the LED light and its reflection are reflected. Light does not reach the automatic flasher, and malfunction due to light entering from the light source itself is prevented.

Further, the arm lower surface 21, the arm side surfaces 22 and 23, and the support column 200 prevent the reflected light from entering the daylighting unit 14 from the LED light. Intrusion is prevented. Further, the daylighting unit 14 is surrounded by the U-shaped arm 20, the U-shaped ridge 15 having an open lower surface, and the support column 200, so that it is difficult for dust to accumulate in the daylighting unit 14 and rain also occurs. Even if it flows down to the support column 200 along the arm 20 and dries, it is difficult for scale to be generated in the daylighting unit 14.
Thus, according to the present invention, the malfunction of the automatic flasher 6 over a long period of time without being affected by the LED light of the lighting device, the reflected light thereof, or external artificial light, etc., with a relatively simple configuration. The LED lighting device 100 with high reliability that is turned on when the sun goes down and becomes dark and turns off when the sun rises and becomes brighter is obtained.

1: LED element 2: LED substrate 3: support plate, 31: LED substrate mounting surface, 32: side surface 4: lighting circuit substrate 5: power supply box, 51: power supply box body, 52: power supply box lid body 6: automatic flashing 61: Automatic flashing control board 62: Light / dark sensor 7: Lens 8: Lens fixing member 10: LED lamp body 11: Housing 12: Translucent cover 13: Through slit 14: Daylighting unit 15: 庇 16, 17 : Rib 20: Arm (attachment means)
21: Arm lower surface 22, 23: Arm side surface 100: LED lighting device 200: Support column (attachment means)
210: Simple mounting bracket

Claims (4)

An LED board mounted with multiple LED elements, and the lighting circuit board, and the LED lamp body which houses an automatic flasher, a,
A mounting means for fixing the LED lamp body to a mounted body such as a support or a wall surface provided outdoors ;
LED lighting fixtures having
The outer shell of the LED lamp body has a housing whose bottom surface is open, and a translucent cover that covers the bottom surface opening,
In the casing constituting the LED lamp body, the opening side, which is the direction in which light is emitted from the LED lamp body through the translucent cover, is defined as the vertical direction, and the direction perpendicular to the vertical direction is defined as the vertical direction. When stipulating the horizontal direction,
The attachment means is fixed to one side in the left-right direction of the housing, the lighting circuit board is disposed on one side in the left-right direction of the LED lamp body, and the LED board is on the other side in the left-right direction of the LED lamp body. Arranged, the automatic flashing device is arranged between the outer shell of the housing on the side facing the mounted body and the end of the lighting circuit board on the mounted body side,
A daylighting unit for taking in external light into the automatic flasher,
An LED lighting apparatus, wherein the LED lighting apparatus is provided on an outer shell of the LED lamp main body on the side facing the mounted body. The attachment means has a shape in which the daylighting portion does not hinder the collection of external light, and the attachment means is attached to the outer shell of the LED lamp body on the side facing the attached body,
The LED lighting device according to claim 1, wherein the daylighting unit is provided at a connection position between the LED lamp main body and the attachment unit.   The LED lighting device according to claim 2, wherein the attachment means includes a lower surface and two side surfaces, and the cross section is formed in a U shape.   The LED lighting device according to any one of claims 1 to 3, wherein the daylighting unit includes a ridge whose bottom surface is open.