JP6548898B2 - Lighting device - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a lighting device suitable mainly for security lights, road lights and street lights installed on living roads and streets.

  Many lighting devices that use low-power-consumption light-emitting elements (LEDs) as light sources are installed not only in ordinary homes but also in commercial facilities, and are being adopted for lighting devices such as street lights installed outdoors. In this lighting device, a plurality of light emitting elements are arrayed inside the main body, and illumination light is emitted downward.

  For the installation of such a lighting device, for example, an existing utility pole on a street is used, or a dedicated support pole is set up. In the case of using such a utility pole or a post, the lighting device is usually fixed to the tip of a power pipe or a branch tube fixedly extended to the post (see, for example, Patent Document 1).

  In addition, a lighting device installed outdoors like this generally comprises a light receiving element, and this light receiving element detects the brightness and darkness of the outside to automatically blink the lighting device (see Patent Document 2).

JP, 2014-1323593, A JP, 2014-127247, A

  The problem to be solved by Patent Document 2 is that, when the light receiving unit of the automatic flasher is upward, the disturbance light is received by the lights of surrounding buildings and signs such as night lights even at night, and the lighting device is turned off. In the case where the light receiving portion is facing downward, the automatic blinker is activated by the light of the car at night and the problem is addressed.

  So, in patent document 2, although the light collection part is provided in the side which opposes the to-be-attached member of a main body, ie, a back surface, and it is going to eliminate said malfunction, also in this case, the influence of the light noise of ambient environment. Can not be completely avoided, and it is not possible to accurately detect light and shade outdoors.

  When such a failure occurs, a plurality of lighting devices installed along a road, a street, etc. may be turned on at different timings, or problems such as remaining off may occur, and the individual lighting in which the failure has occurred. Maintenance work on the equipment will be forced. Therefore, even in various outdoor environments, there has been a demand for a lighting device that accurately determines the brightness and darkness of the surroundings and accurately performs the lighting function.

  Therefore, the present invention solves the above-mentioned problems by means described below. That is, in the first aspect of the present invention, the upper surface cover of the illumination device whose lower surface is opened, one or more light source units having a plurality of light emitting elements mounted on the substrate, and the light source unit and the light emitting elements The lighting device is provided with a light transmitting cover for covering the lighting device, and a recessed light collecting portion for guiding external light to the light receiving element is formed on both sides of the upper surface cover, one of the light collecting portions is selected Make it possible to detect the light and dark of the environment.

  In the second aspect of the present invention, the side walls of the light collecting portion serve as light shielding portions that block light from both sides in the longitudinal direction of the apparatus main body, and the weir walls function as light shielding portions that block light from above.

  According to the third aspect of the present invention, the light receiving element, and the lighting circuit and the blinking circuit for lighting the light emitting element based on the signal from the light receiving element are provided in the power supply apparatus.

In the invention according to claim 4, the upper surface cover of the illumination device whose lower surface is opened, the one or more light source units in which the plurality of light emitting elements are mounted on the substrate in the upper surface cover, and the light source unit A lighting unit including a power supply unit that supplies power;
Light receiving elements are respectively provided on both sides of the power supply unit, and light collecting units for guiding external light to the respective light receiving elements are formed on both sides of the upper surface cover,
A switching means is provided for switching on and off the light emitting element provided in the power supply unit with the signal of each light receiving element to a blinking control circuit for blinking, and one or both of the light receiving elements can be selected.

  According to the present invention, a recessed light receiving portion for guiding external light to the light receiving element is formed on both sides of the upper surface cover, and one of the light receiving portions is selected to detect light and dark of the surrounding environment. It becomes possible to make an accurate judgment of

  Further, according to the present invention, the side walls of the light collecting portion serve as a light shielding portion that shields light from both sides in the longitudinal direction of the device body, and the weir wall functions as a light shielding portion that shields light from above. The accuracy of the judgment can be improved to improve the reliability.

  Further, according to the present invention, the light receiving element and the lighting circuit and the blinking circuit for lighting the light emitting element based on the signal from the light receiving element are collectively provided in the power supply device. It becomes easy to arrange so that it corresponds also to a part.

A switching means for switching on and off the light emitting element provided in the power supply section with the signal of each light receiving element to the blinking control circuit is provided, and one or both of the light receiving elements can be selected. It can be arbitrarily selected, and the flexibility of the blinking control can be improved.

It is a top view of the lighting installation of the present invention. It is a side view of the lighting installation of the present invention. It is a rear view of the illuminating device of this invention. It is a bottom view which shows the internal structure of the illuminating device of this invention. It is sectional drawing of the illuminating device of this invention. The bottom view explaining the internal structure of the illuminating device of this invention It is an exploded perspective view of a lighting installation of the present invention. It is an exploded perspective view of a lighting installation of the present invention. It is explanatory drawing of the fixed state of the branch pipe of the illuminating device of this invention. It is explanatory drawing of the fixed state of the branch pipe of the illuminating device of this invention. It is explanatory drawing of the fixed state of the branch pipe of the illuminating device of this invention. It is a side view which shows the installation state of the illuminating device of this invention. It is principal part sectional drawing of the power supply part of the illuminating device of this invention. It is explanatory drawing of the power supply part of the illuminating device of this invention. It is explanatory drawing of the power supply part of the illuminating device of this invention. It is explanatory drawing of the power supply part of the illuminating device of this invention. It is explanatory drawing of the example of the flow of a process of the power supply part of the illuminating device of this invention. It is a disassembled perspective view of the light source part of the illuminating device of this invention. It is a top view of the light control element of the illuminating device of this invention. It is function explanatory drawing of the light source part of the illuminating device of this invention. It is function explanatory drawing of the light source part of the illuminating device of this invention. It is function explanatory drawing of the light source part of the illuminating device of this invention. It is explanatory drawing of the light distribution pattern of the illuminating device of this invention. It is explanatory drawing of the light distribution pattern of the illuminating device of this invention.

  Hereinafter, embodiments of the present invention will be described in detail based on the drawings. 1 is a plan view of a lighting device 1 according to the present invention, FIG. 2 is a side view, FIG. 3 is a rear view, and FIG. 4 is a bottom view showing an internal structure. Explain.

  The lighting device 1 according to the present invention is a unit wherein the upper surface cover 2 as the main body is integrally formed of a material having excellent corrosion resistance such as aluminum die casting. 3A is interposed and screwed to the mounting boss 2c via the screw hole 3a. Further, as shown in FIG. 1, FIG. 3, FIG. 6, etc., the sloped portion 2a is formed on the rear side of the top cover 2, and the sloped portion is formed at one sloped end 2a-1 of the sloped portion 2a. A lid 4 conforming to the opening shape of 2a is connected to be able to open and close by a hinge 4a. The rear end face of the top cover 2 and the front end face of the lid 4 are shown in FIG. 5 by fixing the other inclined end 2a-1 of the lid 4 not provided with the hinge 4a to the top cover 2 with a mounting screw. It is connected to In this case, the outer surfaces of the opposing portions of the end portions of the lid 4 and the light transmitting cover 3 are made flush with each other so as to form a forming process having a sense of unity on the irradiation surface.

  As shown in FIG. 5, the upper surface cover 2 is formed with a through hole 2b for inserting the branch pipe B1 of the fixing bracket B, and a plurality of mounting bosses 2c and a heat sink 2d of the light source unit 5 described later are shown in FIG. As shown in FIG. A heat conduction plate 6 provided with a light source unit 5 is fixed to the heat sink 2d, and heat generated from each light emitting element 5a (see FIG. 18) is guided to the heat sink 2d. The heat sink 2d absorbs the heat and dissipates it from the top cover 2 to the outside of the device. The light source unit 5 and the heat conducting plate 6 are fixed to the heat sink 2 d by the holder 7. Further, a power supply unit 8 is disposed at the rear of the light source unit 5, and a DC driving power supply obtained by converting the voltage of the commercial AC power supply is supplied from the power supply unit 8 to the light source unit 5 by a lead wire 9.

  The lead wire 9 for leading the commercial AC power supply to the power supply unit 8 is connected to the terminal block 10 disposed in the empty chamber of the inclined portion 2a of the top cover 2, and the cable for commercial AC power is pulled out through the branch pipe B1. . Further, in the space of the inclined portion 2a, a fixing fitting 12 for fixing an end portion of the branch pipe B1 inserted with the sealing ring 11 interposed from the through hole 2b is disposed.

  As shown in FIG. 7, the fixing bracket 12 has a first support member 12a whose end is screwed to the mounting boss 2c as shown in FIG. 10 and FIG. As shown in FIG. 11, it comprises a second support member 12b screwed. A curved portion 12a-1 parallel to the axial center direction of the branch pipe B1 is formed at the center of the first support member 12a, while parallel to the axial center direction of the branch pipe B1 at the center of the second support member 12b. A flat stepped portion 12b-1 is formed, and the flat stepped portion 12b-1 is provided with a fixing screw 12b-2 and a positioning screw 12b-3 for fixing as shown in FIG.

  Since the fixing bracket 12 is configured as described above, it becomes possible to fix various branch pipes B1 having different diameters. That is, when the branch pipe B1 having the relatively largest diameter is fixed, as shown in FIG. 9, the support member 12a is removed, and the end of the branch pipe B1 on the second support member 12b screwed to the mounting boss 2c. After positioning the branch pipe B1 at a fixed position with the positioning screw 12b-3, tighten the fixing screw 12b-2 to press the branch pipe B1 against the pair of convex strips 2e integrally formed on the upper surface cover 2 for mounting work. Complete.

  Further, when the medium diameter branch pipe B1 is fixed, as shown in FIG. 10, the first support member 12a is screwed to the mounting boss 2c, and the second support member 12b is screwed to the mounting boss 2c. Then, the end of the branch pipe B1 is inserted between the first and second support members 12a and 12b, and after the branch pipe B1 is positioned at a fixed position by the positioning screw 12b-3, the fixing screw 12b-2 is tightened to branch the branch pipe B1. Is pressed against the first support member 12a to complete the mounting operation.

  Further, when the branch pipe B1 having a small diameter is to be fixed, as shown in FIG. 11, the first support member 12a is screwed to the mounting boss 2c, and the second support member 12b is fixed to the flat step 12b-1. Screw the mounting boss 2c so that the convex surface faces upward. Then, the end of the branch pipe B1 is inserted between the first and second support members 12a and 12b, and after the branch pipe B1 is positioned at a fixed position by the positioning screw 12b-3, the fixing screw 12b-2 is tightened to branch the branch pipe B1. Is pressed against the first support member 12a to complete the mounting operation.

  As described above, while the attachment work of the branch pipe B1 is performed, as shown in FIG. 6, since the cover 4 is expanded without interfering with the branch pipe B1 etc., the inclined portion 2a is completely opened, The mounting operation of the branch pipe B1 and the wiring operation to the terminal block 10 can be easily performed. Since the lighting device 1 of the present invention is configured as described above, when it is attached to the columnar structure P by the fixing bracket B as shown in FIG. It is possible to improve the quality. Moreover, since the lid 4 comes to be located on the lower surface of the apparatus main body, it is possible to reliably prevent the entrance of rain water and the like.

  Below, the structure of the power supply part 8 is demonstrated in detail. The power supply unit 8 converts a commercial AC power supply into a DC power supply obtained by stepping down and supplies the DC power supply to the light source unit 5, a lighting circuit for lighting the light emitting element 5a with the DC power supply, and the brightness of the environment outside the apparatus body. A blink control circuit is provided to blink the light emitting element 5a.

  As shown in FIGS. 7 and 8, the power supply unit 8 is formed by integrating a hollow bowl-like case 8a and a slide plate 8b covering the opening surface of the bowl-like case 8a, and the inside of the bowl-like case 8a The wiring substrate 8c on which the power supply circuit, the lighting circuit, and the blinking control circuit are mounted is accommodated. The outer periphery of the slide plate 8b is in the form of a flange projecting from the outer periphery of the bowl-like case 8a, and a dharma hole 8b-1 is formed at the four corners of the flange-like portion.

  As shown in FIG. 13, a light receiving element 8c-1 is mounted on a wiring board 8c on the side of the bowl-shaped case 8a. A through hole 8a-1 is formed on the side wall of the bowl-shaped case 8a facing the light receiving element 8c-1, and external light of the surrounding environment is introduced from the light collecting portion 2f formed on both sides of the upper surface cover 2 I have to. That is, the position facing the through hole 8a-1 of the upper surface cover 2 is formed in a recessed state, and the through hole 2f-1 is formed in the deep rear wall of the light collecting portion 2f. A light collecting packing 13 made of a transparent material is coaxially mounted on the through hole 2f-1 and the through hole 8a-1. The side wall 2f-2 of the light collecting unit 2f serves as a light shielding unit that shields light from both sides in the longitudinal direction (road axis direction) of the device body, and the wall 2f-3 shields light from above, and the light receiving element 8c It is possible to limit the light that is noise incident on -1.

  When the light receiving element 8c-1 is provided on one of the side portions of the power supply unit 8 configured as described above, the light receiving element 8c-1 is made to face any one of the light pickup parts 2f of the top cover 2. Can be arranged. Such a function occurs when the light emitted from a lighting facility such as a surrounding house or building where the lighting apparatus 1 is installed becomes noise and is detected by the light receiving element 8c-1 and does not light at night when it should be lighted. It can correspond.

  In such a case, the arrangement of the light receiving element 8c-1 on the light noise ingress side of the light collecting portion 2f of the upper surface cover 2 is avoided, and the light collecting portion 2f not affected by the light noise is selected to arrange the power supply portion 8 To make it possible. That is, in the case where the power supply unit 8 emits light from the light receiving unit 2f on the upper side of the same figure as shown in FIG. 6, when the influence of the light noise is confirmed, the small diameter portion of the dharma hole 8b-1 is fixed. By loosening the mounting screw 14 and sliding the slide plate 8b to remove the head of the mounting screw 14 from the large diameter portion of the dharma hole 8b-1, the entire power supply unit 8 can be rotated 180 °, as shown in FIG. The arrangement direction can be changed so that light can be collected from the lower light collecting unit 2 f on the lower side 6.

  That is, the power supply unit 8 can be disposed arbitrarily in any of the directions shown in FIGS. As shown in FIG. 16, the light receiving elements 8c-1 are provided on both sides in the power supply unit 8, and the switches SW1 and SW2 are provided so that one or both of the light receiving elements 8c-1 can be selected. While being able to improve the flexibility that can cope with the state of the light of the surrounding environment, it is possible to make an emergency response, such as making the other function when one of the light receiving elements 8c-1 fails. The flow of functional processing when the light receiving element 8c-1 is provided on both sides is shown in FIG. As described above, according to the configuration of the power supply unit 8 of the present invention, since the light collecting unit 2 f is provided with the side portion of the upper surface cover 2, the accuracy is remarkably improved compared to the conventional lighting device provided with the light collecting unit on the back. High lighting is possible.

  Below, the structure of the light source part 5 is demonstrated in detail. As shown in FIG. 18, the light source unit 5 has a plurality of chip-like light emitting elements 5a mounted on the insulating substrate 5b, and a pair of light source elements 5c fixed on the heat conducting plate 6; It is mainly composed of a combination with a pair of light control elements 5d which slides on the surface 5c and controls the emission direction of the light emitted from each light emitting element 5a.

  The configuration of each light control element 5d is such that the transmission holes 5d-2 and 5d-3 are arranged in a row on the substrate 5d-1, as shown in detail in FIG. A lens-like light control member 5e molded of a transparent material is fixed to a suitable means such as adhesion. The substrate 5d-1 may be integrally formed as a transparent material together with the light control member 5e. A tapered surface 5d-2a for preventing so-called vignetting of the incident light is formed on the outer peripheral portion of the transmission hole 5d-2 where the light control member 5e is not interposed.

Further, on the back surface of the substrate 5d-1, a vent groove 5d-4 communicating between the transmission holes 5d-2 and 5d-3 and the outside of the light source unit 5 is formed, and the heat generation of the light emitting element 5a is made outside The light can be dissipated, the heat storage between the light source element 5c and the light control element 5d is eliminated, and the light emitting element 5a is protected. The shape and size of the light control member 5e, and the shape and size of the transmission holes 5d-2 and 5d-3 can be arbitrarily determined based on the light distribution design, and the present invention is not limited to this. Absent.

  In the light control element 5d, the locking recess 5d-5 is engaged with the locking projection 5c-1 of the light source element 5c, and the sliding position of the light control element 5d is regulated. FIG. 20 illustrates a state in which the light control element 5d slides on the light source element 5c. When the light control element 5d is slid to the left by the distance d as shown in the figure, the light of the light emitting element 5a When the light control member 5e of the light control element 5d is positioned on the axis SC and slid to the right by the distance d, the transmission hole 5d-2 of the light control element 5d is positioned on the optical axis SC of the light emitting element 5a. It will be done.

  FIG. 21 is a cross-sectional view of a state in which the light control member 5e is positioned on the optical axis SC of the light emitting element 5a, and FIG. 22 shows a state in which the transmission hole 5d-2 is positioned on the optical axis SC of the light emitting element 5a. In the arrangement of the light control member 5e with respect to the light emitting element 5a shown in FIG. 21, the emitted light emitted from the light emitting element 5a is diffused in the lateral direction by the lens action of the light control member 5e. On the other hand, in the state shown in FIG. 22, the light emitted from the light emitting element 5a passes through the transmission hole 5d-2 and goes straight.

  In the state shown in FIG. 21, the irradiation light L emitted from the entire light control element 5d has a spindle-shaped light distribution characteristic that spreads in the lateral direction as shown in FIG. 23, so it is suitable for illumination in the longitudinal direction of the road surface. Thus, the light distribution pattern becomes oblong, and the installation interval between the lighting devices can be increased, and the emission (glare) of the illumination light to the area of a vertical angle of 85 ° or more can be suppressed. On the other hand, in the state shown in FIG. 22, since it becomes a spot-shaped substantially circular or substantially trapezoidal light distribution characteristic as shown in FIG. 24, it becomes suitable for the illumination in an intersection or a park. Since the light source unit 5 is configured as described above, it is possible to obtain illumination light having different light distribution characteristics only by sliding the light control element 5d.

  As apparent from the above description, by implementing the above-described configuration unique to the present invention, it is possible to provide a lighting device with improved functionality and versatility.

DESCRIPTION OF SYMBOLS 1 ......... Lighting apparatus 2 ... Top cover 2a ......... Slope-like part 2f ..... Daylighting part 3 ... Translucent cover 4 ... Lid 4a .. ··· Hinge 5 ··· Light source unit 5c · · · Light source element 5d · · · Light control element 5e · · · Light control member 6 · · · Thermal conduction plate 7 · · · Holder 8 ··· Power supply section 9 ··· Lead wire 10 ··· Terminal block 11 ··· Sealing ring 12 ··· Fixing bracket 12a ··· First support member 12b · · · Second support member 13 · · · Daylighting packing

Claims (4)

An upper surface cover of a lighting device having an open lower surface, one or a plurality of light source units having a plurality of light emitting elements mounted on a substrate, and a light transmitting cover covering the lighting unit for lighting the light source unit and the light emitting elements A lighting device equipped with
An illuminating device characterized in that a recessed light receiving portion for guiding external light to a light receiving element is formed on both sides of the upper surface cover, and one of the light receiving portions is selected to detect light and dark of the surrounding environment.   The side walls of the light collecting portion serve as light shielding portions that block light from both sides in the longitudinal direction of the apparatus main body, and the weir walls serve as light shielding portions that block light from above. Lighting equipment.   The lighting device according to claim 1, wherein the light receiving element, and a lighting circuit and a blinking circuit for lighting the light emitting element based on a signal from the light receiving element are collectively provided in a power supply device. An upper surface cover of a lighting device whose lower surface is opened, one or more light source units in which a plurality of light emitting elements are mounted on a substrate, and a power supply unit for supplying driving power to the light source unit Lighting device,
Light receiving elements are respectively provided on both sides of the power supply unit, and light collecting units for guiding external light to the respective light receiving elements are formed on both sides of the upper surface cover,
A switching means is provided for switching on and off the light emitting element provided in the power supply section to the blinking control circuit which blinks the signal of each light receiving element, and one or both of the light receiving elements can be selected. Lighting device.

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