JP6784990B2 - lighting equipment - Google Patents

Description

The present invention relates to a luminaire that controls lighting of a light source by detecting ambient light and darkness with an optical sensor.

When the light sensor detects the ambient light and dark illuminance, the lighting control circuit controls whether to turn on or off the LED (light emitting diode) that is the light source of the lighting equipment, but the light of the LED that is the light source in the lighting equipment When the light reaches the light sensor, the LED lights up, the light sensor detects the light and the LED turns off, the light sensor detects the reduced illuminance due to the light off, and the LED turns on again, and the light is turned on by the light sensor. Is detected and the LED is turned off, and there is a risk of repeating such a malfunction.

In addition, for lighting fixtures such as road lights installed outdoors, the work of detecting the light sensor and checking whether the lighting control circuit based on the detection operates normally with the mounting part of the lighting fixture attached to the support column or the like. I do.
In the form of a lighting fixture, an LED substrate on which LEDs are arranged is arranged facing the lower opening of a metal main body, and the lower opening of the main body is covered with a translucent cover so as to cover the LED and the LED substrate. In this case, when the above work is performed in a state where the sky illuminance (outside light illuminance) in the daytime is high, even if the periphery of the optical sensor is covered with a light-shielding member in order to block the outside light, the outside light covers the translucent cover. There is a risk that it will pass through and enter the lighting fixture, and it will reach the optical sensor and malfunction, making it impossible to confirm whether the optical sensor and lighting control circuit operate normally.

A security light, which is one of the lighting fixtures, attaches the mounting part of the lighting fixture to a support or the like in order to illuminate the road surface or the like by the light emission of the LED element, and in the mounted state, the surrounding light and darkness is detected by the light sensor. There is one that controls the light emission of an LED (Patent Document 1).

As shown in FIGS. 1, 5, 7, and 9, the optical sensor (referred to as a light receiving sensor) of Patent Document 1 automatically blinks at one end of the light shielding member 73 in the upper and lower notches of the automatic blinking substrate 71. When the substrate storage recess 73a is fitted, the other end of the light-shielding member 73 is fitted into the groove 14a formed in the main body 1, and the lighting control device 6 is fixed to the main body 1, it is formed in the bottom 61 of the automatic blinking switch and the main body 1. The automatic blinking substrate 71 is sandwiched between the substrate fixing slits 18a to 18d, and the light-shielding member 73 is fixed to the main body 1.

Japanese Unexamined Patent Publication No. 2014-127247

It is assumed that the optical sensor (referred to as a light receiving sensor) of Patent Document 1 is attached to the main body 1 as follows. That is,
Since the automatic blinking board storage recess 73a at one end of the light-shielding member 73 fits into the upper and lower cutouts of the automatic blinking board 71, it is necessary to make a combination without a gap in order to prevent light from entering from this portion. If this is done, it will be difficult to assemble and workability will be poor.
Further, since the other end of the light-shielding member 73 is fitted into the groove 14a formed in the main body 1, it is necessary to make a combination without a gap in order to prevent the intrusion of light from this portion. It is difficult to assemble and workability is poor.
Further, as the lighting control device 6 is fixed to the main body 1, the automatic blinking substrate 71 is sandwiched and the light-shielding member 73 is fixed to the main body 1, so that it is difficult to assemble and workability is poor.
In order to block unnecessary external light entering the optical sensor (called a light receiving sensor) in this way, it is necessary to configure many parts, and the assembly is complicated.

In view of these points, the present invention makes it possible to block unnecessary external light entering the optical sensor with a configuration of a small number of parts, facilitate assembly, and reduce costs.
Therefore, as attachment to the main body of the light sensor for controlling the on / off of the light source, a translucent daylighting cover that closes the daylighting window formed in the main body and a light-shielding cover that houses the light sensor attached to the sensor substrate are used. The close contact configuration blocks unnecessary external light that enters the optical sensor.

Further, in the present invention, an LED (light emitting diode) is used as a light source, and a control board to which an electric component constituting a control circuit for controlling the lighting of the LED is attached prevents the sensor board to which the optical sensor is attached from retreating. Prevent the light-shielding cover and the light-collecting cover from being disconnected so as to block unnecessary external light entering the optical sensor.

The first luminaire of the present invention is
In a lighting fixture including a light source that emits light directed at a required location, an optical sensor that detects the brightness and darkness of the surroundings, and a control unit that controls the light emission of the light source based on the detection of the optical sensor.
A daylighting window provided in the lighting fixture to take in ambient light into the light sensor, a translucent daylighting cover attached so as to block the daylighting window, a sensor substrate to which the light sensor is attached, and the light sensor are housed. Equipped with a light-shielding cover
The daylighting cover comprises an elastic tubular joint extending from the daylighting window into the luminaire.
The light-shielding cover includes a tubular accommodating portion that accommodates the optical sensor and has a daylighting opening on the daylighting window side, and a flange that goes around the opening on the opposite side of the daylighting opening and makes contact with the sensor substrate on an annular surface.
The tubular joint portion of the lighting cover is annularly adhered to the tubular accommodating portion of the light-shielding cover.
It is characterized by that.

The second luminaire of the present invention is the above-mentioned first.
The light-shielding cover includes a locking claw that extends from the flange to the opposite side of the tubular accommodating portion.
The sensor substrate has a locking hole and has a locking hole.
The elastic locking of the locking claw to the locking hole brings the flange and the sensor substrate into contact with the annular surface.
It is characterized by that.

The third luminaire of the present invention is the first or second luminaire.
The light-shielding cover includes an outer covering tubular portion that extends from the annular flange and covers the outer peripheral surface of the tubular accommodating portion in a tubular shape.
In the annular close contact state between the tubular joint portion of the daylighting cover and the tubular accommodating portion of the light-shielding cover, the tip of the outer cover tubular portion abuts or approaches the peripheral edge portion of the daylighting window.
It is characterized by that.

The fourth luminaire of the present invention has the above-mentioned first to third aspects.
A control board having a control circuit mounted in the luminaire and controlling the lighting of the light source is provided.
The end of the control board is in close proximity to or in contact with the sensor board surface.
It is characterized by that.

The fifth luminaire of the present invention has the above-mentioned first to fourth aspects.
The middle portion of the tubular accommodating portion forms the arrangement portion of the optical sensor, and the outer circumference from the arrangement portion to the lighting opening has substantially the same inner diameter as the outer circumference of the optical sensor, and the outer circumference from the lighting opening to a predetermined range is. A small outer shape portion smaller than the inner diameter of the tubular joint portion.
It is characterized by that.

The sixth luminaire of the present invention has the above-mentioned first to fifth aspects.
The tubular housing portion is characterized in that the arrangement portion has a support portion that supports the back side of the optical sensor.

The seventh luminaire of the present invention has the above-mentioned first to sixth aspects.
The tubular accommodating portion is characterized by having an electrically insulating partition wall interposed between the leads of the optical sensor between the arrangement portion and the sensor substrate.

In the eighth luminaire of the present invention, in any one of the first to seventh, the light source is arranged downward on the opaque body.
The rear wall of the main body is integrally provided with a mounting portion for a support or the like.
The daylighting window is formed on the rear wall of the main body on the side of the mounting portion.
It is characterized by that.

INDUSTRIAL APPLICABILITY According to the present invention, the tubular joint portion of the lighting cover is annularly adhered to the tubular accommodating portion of the light-shielding cover, so that the light of the light source and the external light transmitted through the lighting cover can be blocked from reaching the optical sensor. Therefore, the light source can perform a stable automatic blinking operation.

Further, since the end portion of the control board having the control circuit for controlling the lighting of the light source is close to or in contact with the surface of the sensor board to which the optical sensor is attached, it is possible to prevent the sensor board from retreating. Even if the light-shielding cover tries to move away from the light-collecting cover, the coupling can be maintained so as not to come off, and the state of blocking unnecessary external light that tries to enter the optical sensor can be maintained.

It is an exploded perspective view of the luminaire according to this invention. It is a vertical cross-sectional view corresponding to the optical sensor portion of the lighting equipment which concerns on this invention. It is a cross-sectional view of the lighting equipment which concerns on this invention. It is the figure which looked at the main body of the luminaire which concerns on this invention from below. It is the figure which looked at the main body of the luminaire in the state which attached the LED board and the control board which concerns on this invention from the bottom. It is the figure which looked at the luminaire which concerns on this invention from the rear. It is a side view of the state in which the luminaire according to the present invention is attached to a support. It is the figure which looked at the state which attached the luminaire according to this invention to a support from above. It is explanatory drawing which shows the state which attached the luminaire which concerns on this invention to a pole by the cross section. It is a side view of the state in which the luminaire according to the present invention is attached to a pole. It is explanatory drawing of the state which attached the light distribution unit to the LED substrate which concerns on this invention. 11 is a cross-sectional view taken along the line AA of FIG. FIG. 11 is a cross-sectional view taken along the line BB of FIG. It is explanatory drawing of the light distribution state in the state which arranged the luminaire according to this invention along the road. It is a cross-sectional enlarged view of the attachment part of the optical sensor of FIG. It is sectional drawing of the light-shielding cover in the state which accommodated the optical sensor which concerns on this invention. It is an exploded perspective view of the optical sensor, the sensor substrate and the light-shielding cover which concerns on this invention. It is a front view of the state which combined the sensor substrate and the light-shielding cover which concerns on this invention. FIG. 18 is a sectional view taken along the line AA of FIG. FIG. 19 is an explanatory diagram of a state in which the optical sensor is housed.

The lighting fixture of the present invention is a lighting fixture including a light source that emits light directed to a required location, a light sensor that detects the brightness and darkness of the surroundings, and a control unit that controls the light emission of the light source based on the detection of the light sensor. The daylighting cover is provided with a daylighting window that takes in ambient light into the daylighting sensor, a daylighting cover that is installed so as to block the daylighting window, a sensor board that is equipped with a daylighting sensor, and a light-shielding cover that houses the daylighting sensor. It has an elastic tubular joint that extends from the daylighting window into the luminaire, and the light-shielding cover has a tubular housing part that houses the light sensor and has a daylighting opening on the daylighting window side, and a tubular housing part on the opposite side of the daylighting opening. It is provided with an annular flange that extends outward and makes contact with the annular surface of the sensor substrate, and the tubular joint portion of the lighting cover is annularly adhered to the tubular accommodating portion of the light-shielding cover.
Hereinafter, as an embodiment of the present invention, an LED lighting fixture 1 in which two rows of LED elements 7 forming a light source are arranged will be described with reference to the drawings.

In the luminaire 1 of the present invention, a light emitting unit 6 that emits light emitted by the LED element 7 with a predetermined light distribution is attached to a region surrounded by a peripheral edge portion on the lower surface side of the translucent main body 2. This is a lighting fixture in which the emitted light of the light emitting unit 6 is distributed in the road direction. As one form thereof, as shown in FIGS. 1 to 3, the main body 2 has an upper wall 2T and a peripheral wall 2S descending from the upper wall 2T, and opens to the lower side surrounded by the peripheral wall 2S. It is made of a heat conductive material such as metal having an internal space 4 having an opening 2A formed therein, and is provided with a mounting portion 10 for a support or the like at the rear portion. The luminaire 1 has a shape that is long in the front-rear direction and includes a translucent cover 3 that is combined with the main body 2 so as to close the opening 2A, and the light emitting portion 6 is arranged along the opening 2A. The light emitting unit 6 is a portion that irradiates light toward a required portion, is a portion that emits light emitted by the LED element 7 with a predetermined light distribution, and the LED element 7 is arranged on the lower side surface of the LED substrate 5. A light distribution unit 8 is provided which is combined with the LED substrate 5 so as to cover the LED element 7 and emits light emitted by the LED element 7 with a predetermined light distribution. The main body 2 integrally has a heat conductive rib 11 that hangs down from the upper wall 2T and extends in the front-rear direction in contact with the upper surface of the LED substrate 5 in the front space 4A that occupies most of the internal space 4. On both the left and right sides of the heat conductive rib 11, the upper wall 2T and the peripheral wall 2S of the main body 2 and the LED substrate 5 extend diagonally upward and forward from the rear portion of the main body 2 and communicate with each other at the front end and the rear end of the heat conductive rib 11. An air passage is formed.

As shown in FIGS. 1 to 5, the LED luminaire 1 of the present invention is a metal in which an opening 2A is formed so that substantially the entire lower surface is opened, and both the inner and outer surfaces are coated with a heat conductive coating having a rust preventive effect. It is provided with a translucent main body 2 having good thermal conductivity, and a translucent cover 3 made of synthetic resin, which is combined with the peripheral edge of the opening 2A so as to close the opening 2A of the main body 2. The translucent cover 3 has a shape that bulges downward, and a flange 3F that projects upward is formed on the upper peripheral edge portion. A flange 2F protruding downward is formed so as to go around the peripheral edge portion 2A1 of the opening 2A of the main body 2. The peripheral edge portion 2A1 of the opening portion 2A has a groove 2M into which the flange 3F of the translucent cover 3 is fitted inside the flange 2F.

In a state where the translucent cover 3 is combined with the opening 2A of the main body 2 so that the flange 3F fits into the groove 2M, it is fixed to the peripheral edge 2A1 of the opening 2A with a screw NJ. A waterproof structure is formed between the main body 2 and the translucent cover 3 due to the uneven structure that fits the groove 2M and the flange 3F. A better waterproof effect can be obtained by accommodating the packing in the upper bottom of the groove 2M and compressing the packing by the flange 3F.

In the front space 4A of the internal space 4, the LED substrate 5 is heat-transferredly attached to the main body 2 along the opening 2A as described later. In the electrically insulating LED substrate 5, a plurality of LED elements (light emitting diodes) 7 constituting the light emitting unit 6 are mounted on the lower surface, and an electric path to the LED element 7 is formed as a printed wiring on the same lower surface. It is covered with an insulating film. On the lower surface of the LED substrate 5, the light distribution unit 8 is arranged so as to be superposed on the LED substrate 5. The light distribution unit 8 is made of a translucent synthetic resin, and a plurality of light distribution portions 82 are integrally formed on the plate-shaped portion 81. At a predetermined position, the plate-shaped portion 81 penetrates the LED substrate 5 and the main body 2 It is attached by a screw 9 screwed into the attachment boss 13B formed in. As a result, the light distribution unit 8 is attached to the lower surface of the LED substrate 5. The light distribution unit 82 is a portion that forms an emitted light that is a predetermined light distribution for each LED element 7. In the embodiment, the light distribution unit 82 has a lens shape and is long in the left-right direction with respect to the front-rear axis of the LED lighting fixture 1. Has optical properties. As shown in FIGS. 1 and 11, the light distribution unit 8 is composed of a front light distribution unit 8P and a rear light distribution unit 8Q.

The main body 2 is composed of an upper wall 2T and a heat conductive material surrounded by a peripheral wall 2S extending from the upper wall 2T to the peripheral edge of the opening 2A. The main body 2 is die-cast molded from aluminum to form an internal space 4 that swells upward so as to form an opening 2A on the lower side, and the opening 2A of the internal space 4 is covered with a translucent cover 3. It is a covering form. The main body 2 integrally forms a mounting portion 10 to be attached to a pole such as a utility pole so as to extend rearward from the rear wall 2B of the main body 2. Further, in the front space 4A which occupies most of the internal space 4, the main body 2 has a plurality of heat conductive ribs 11 extending in parallel in the front-rear direction supporting the upper surface of the LED substrate 5, and a mounting boss 13 for attaching the LED substrate 5. Is integrally formed with the main body 2. The mounting boss 13 is a portion for mounting the LED board 5 with screws 12 through holes 5P at four corners of the LED board 5 formed at a position where the upper surface of the LED board 5 is in contact with the heat conductive rib 11 and is not connected to the printed wiring. Is. The LED board 5 is supported by the boss 13B integrally formed with the main body 2 whose central portion is aligned in the front-rear direction while being attached to the mounting boss 13, and also closes most of the openings 2A in the front space 4A. At a position slightly closer to the space 4 side than the opening 2A (a position entering the front space 4A side), the state is substantially parallel to the opening 2A. The internal space 4 of the main body 2 is formed so as to gradually become deeper from the front portion to the rear portion (the interior space 4 gradually increases upward with reference to the opening 2A).

The LED luminaire 1 has a form in which the rear wall 2B of the main body 2 is set as the rear portion 1A and extends long from there to the front portion 1B, and the light emission of the light emitting unit 6 causes the light distribution unit 8 and the translucency as shown in FIG. Through the cover 3, the road surface is irradiated so as to have a long light distribution in the road direction. The ripple-shaped lines shown in FIG. 14 are for explaining a state in which the illuminance in the region close to the luminaire 1 is high and the illuminance decreases as the distance increases.
Therefore, the main body 2 and the translucent cover 3 have a form extending from the rear portion 1A to the front portion 1B, the internal space 4 formed in the main body 2 is also long in the front-rear direction, and the internal space 4 is the front space thereof. The 4A and the rear space 4B are formed in a communicative state. The LED substrate 5 and the front space 4A are also long in the front-rear direction, and the LED substrate 5 is a rectangular flat plate shape long in the front-rear direction.
As shown in FIGS. 7 and 10, the LED luminaire 1 maintains an inclined state in which the line of the opening 2A is slightly higher than the horizontal line in the front portion 1B by an angle α with respect to the horizontal line. In this state, the lower surface of the translucent cover 3 is inclined gradually downward from the front portion to the rear portion, and forms a rising portion 3G steeply from the rear portion toward the main body 2 to form a translucent light-transmitting portion. The lowest portion of the sex cover 3 is provided with a drain hole 51 and a protrusion 40 surrounding the drain hole 51.

The LED substrate 5 has a rectangular shape of a flat plate long in the front-rear direction, and the LED elements 7 are arranged in a plurality of rows on the lower side surface of the rectangular LED substrate 5 long in the front-rear direction with an interval in the front-rear direction. The heat conductive ribs 11 are formed at positions facing the back side (upper surface side) of each row of the LED elements 7.
In the case of the embodiment, the LED elements 7 are arranged symmetrically in two rows on the LED substrate 5 at equal intervals in the front-rear direction, and the heat conductive ribs 11 are arranged in two rows as shown in FIGS. 3 and 4. It is formed on the back side (upper surface side) of the position facing the LED element 7. The rear end of the heat conductive rib 11 is a position facing the rear space 4B, and the front end of the heat conductive rib 11 integrally formed with the main body 2 is a position behind the front wall 2G of the front space 4A.
A connector 95 is arranged at the rear end of the lower surface of the LED substrate 5 for electrical connection with the connector 14C of the control unit 14.

A heat conductive film (not shown) for heat dissipation is formed on the upper surface of the LED substrate 5 in a state where it is not connected to the printed wiring on the lower surface so as not to form an electrical connection, and this heat conductive film conducts heat. It is a mechanism that abuts on the rib 11 and dissipates heat generated by the LED substrate 5 from the heat conductive coating through the heat conductive rib 11 and from the surface of the main body 2. Therefore, in order to improve the heat transfer effect of heat transferred from the LED substrate 5 to the main body 2 through the heat conductive rib 11, the heat conductive rib 11 is formed at a position facing the back side (upper surface side) of the LED element 7. ..

Further, in the LED lighting fixture 1, a control unit 14 including a power supply unit that supplies lighting power to the LED element 7 and a control circuit that controls lighting and extinguishing of the LED element 7 is located behind the front space 4A. It is arranged in the rear space 4B. Therefore, the control unit 14 is arranged behind the LED substrate 5. The control unit 14 is attached to the lower side surface of the control board 15 which is a printed wiring board in which the electric components constituting the power supply unit and the electric components EP constituting the control circuit are attached.

As shown in FIGS. 1, 2 and 5, the control board 15 is mounted on the four mounting bosses 16 and 16B that integrally project from the main body 2 in the rear space 4B, and the control board 15 is two on the diagonal line thereof. The mounting boss 16 at the place is fixed with screws 17, and is in a state of heat conduction with the main body 2. The remaining two diagonal mounting bosses 16B are positioning bosses having protrusions 16T in the center that fit into the two diagonal holes formed in the control board 15.
In this mounted state, the control board 15 is located deeply into the space 4 side from the opening 2A (upper position near the upper wall of the rear space 4B), and is located above the LED board 5. , Maintain a position deep inside the internal space 4 (a position close to the upper wall of the main body 2).

Since it is dangerous for an operator to touch the electric circuit portion of the control unit 14 with the translucent cover 3 removed from the main body 2 for internal inspection or the like, the control unit 14 is used to prevent the danger. A protective cover 18 that covers the entire surface from below is provided. The protective cover 18 is mounted on the four mounting bosses 19 and 19B that integrally project from the main body 2 in the rear space 4B, and the two mounting bosses 19 on the diagonal line are fixed with screws 20. The remaining two diagonal mounting bosses 19B are positioning bosses having protrusions 19T in the center that fit into the two diagonal holes formed in the protective cover 18.
By this attachment, the protective cover 18 is in a state of being separated from the control unit 14 including the control board 15 and the electric component EP, and prevents electric shock due to the operator touching the control board 15 and the electric component EP.
The protective cover 18 is made of a metal plate or an opaque synthetic resin plate, and has an effect of hiding the control unit 14 from the outside through the translucent cover 3.

The LED lighting fixture 1 includes an optical sensor (also referred to as an illuminance sensor) SS that is electrically connected to a control unit 14 so that the LED element 7 lights up at night from dusk to dawn by detecting the ambient illuminance. .. As shown in FIGS. 1, 2, 5, and 15, the optical sensor SS is held in a light-shielding cover 21 attached to the sensor substrate 15H, which is electrically connected to the control substrate 15, and does not transmit light. The light-shielding cover 21 is held in a daylighting window (also referred to as a daylighting hole) 2H formed on the rear wall 2B of the main body 2 so that the light sensor SS detects the illuminance around the rear of the LED luminaire 1. As shown in FIGS. 2, 15 to 17, and 20, the light-shielding cover 21 has an opening 45 at the rear so that ambient light can enter the optical sensor SS, and the opening 45 and the lighting window 2H The translucent daylighting cover 22 is inserted and held in the daylighting window 2H so as to close the waterproof state, the daylighting cover 22 and the daylighting cover 21 are combined, and the daylighting cover 21 is held in the daylighting window 2H. It is a relationship.

As shown in FIGS. 4 to 6, the daylighting window 2H is formed on the rear wall 2B on the lateral outer side of the mounting portion 10 so as to be located away from the mounting portion 10. In mounting the luminaire 1 by the mounting unit 10, the optical sensor SS can detect the illuminance around the rear of the LED luminaire 1, and the optical sensor SS detects the reduced illuminance due to sunset and is based on the operation of the control unit 14. The lighting / extinguishing control operation of the LED element 7, which is a light source, is performed so that the LED element 7 emits light, detects the increased illuminance due to sunrise, and turns off the LED element 7 based on the operation of the control unit 14.

In order to supply power to the LED luminaire 1 from an external power source, the external power supply line 23 supplied to the LED luminaire 1 is a bushing made of insulating rubber inserted into a through hole 24 formed in the rear wall 2B of the main body 2. A power connector 26 that penetrates 25 and is attached to the tip thereof is electrically connected to the power supply unit of the control unit 14.

The separated light distribution units 8P and 8Q constituting the light distribution unit 8 are combined in a superposed state on the lower side surface of the LED substrate 5 with a space in the front and rear according to the arrangement of the LED elements 7, and the plate-shaped portion thereof. The 81 penetrates the LED substrate 5 and is attached to the front and rear mounting bosses 13B with screws 9 except for the intermediate 13B1 among the three mounting bosses 13B arranged in a row.

Regarding the arrangement of the separate light distribution units 8P, 8Q and the LED element 7, among the LED elements 7 in the two-row state, the eight LED elements 7 on the front side are arranged corresponding to the separate light distribution unit 8P on the front side, and the rear side Eight LED elements 7 are arranged corresponding to the rear separated light distribution unit 8Q, and as shown in FIG. 11, the eight LED elements 7 on the front side have the first light distribution characteristic of the front separated light distribution unit 8P. Each of the parts 83A corresponds to each of the eight LED elements 7 on the rear side, and each of the first light distribution characteristic parts 83A of the separate light distribution unit 8Q on the rear side corresponds to the eight LED elements 7 on the rear side, in the left-right direction as shown in FIG. It has a long light distribution.

The front light distribution unit 8P and the rear light distribution unit 8Q constituting the light distribution unit 8 are arranged in the left-right direction extending in the left-right direction such as an ellipse, an oval, etc. with respect to the front-rear direction of the LED lighting fixture 1. As the light distribution unit 82, the first light distribution characteristic unit 83A that forms the emitted light of a predetermined light distribution is formed for each LED element 7 so that the light characteristics are formed. Therefore, as is clear from FIGS. 1, 11, 12, and 13, the first light distribution characteristic portion 83A has a cross section such that the plate-shaped portion 81 has a semi-cylindrical shape or a half shape of a rice bag. It has a substantially constant semicircular shape and has a lens configuration in which the front and rear ends are spherical in the left-right direction and project downward, and a recess 93 that narrows downward in which the LED element 7 penetrates is formed inside. ing. In the embodiment, the light distribution by the emitted light from each light distribution characteristic unit 83A has the same light distribution form, but has a different light distribution form depending on the irradiation form required by the LED lighting fixture 1. It may be.

In the first light distribution characteristic unit 83A shown in the drawing, a straight line in the length direction is drawn in the central part, and diagonal lines are drawn from the front and rear ends of the straight line. This is a curved surface generated by computer drawing. As described above, the light distribution characteristic unit 83A has a semicircular length with a substantially constant cross section, and both ends have a spherical shape.

The mounting portion 10 is a second mounting portion 101 into which a first mounting portion 101 to be attached to a pole PL such as a utility pole by a mounting band 30 and a second tip portion of a cylindrical or columnar pole PP whose tip portion extends laterally instead of the pole PL are inserted. A mounting portion 102 is provided, and the first mounting portion 101 and the second mounting portion 102 are formed integrally with the main body 2.

The second mounting portion 102 has a cylindrical shape that continuously extends rearward to the rear wall 2B of the main body 2 so that the tip portion that faces diagonally upward of the pole PP is inserted, and the front surface of the cylindrical shape is that of the main body 2. It is closed by the rear wall 2B, and its cylindrical rear surface is opened to have an insertion opening 102K into which the tip PP1 of the pole PP is inserted. Further, the second mounting portion 102 has a curved surface shape in which the cylindrical rear end surface 102R serves as a relief portion so that the column surface (peripheral surface) of the support column PL does not come into contact with each other. Therefore, the curved surface of the cylindrical rear end surface 102R is preferably a curved surface shape drawn with a radius equal to or slightly smaller than the curved surface of the column surface (peripheral surface) of the support column PL.

The first mounting portion 101 is composed of vertical plate-shaped left and right mounting plate portions 101B arranged in parallel on both the left and right sides of the second mounting portion 102 in a state of being integrated with the second mounting portion 102. The rear end surface 101R of the left and right mounting plate portions 101B forms a straight line along the column surface (peripheral surface) of the support column PL in the vertical direction. The left and right mounting plate portions 101B and the second mounting portion 102 have mounting holes 31 long in the vertical direction through which the mounting band 30 is inserted and locked.

In the state where the LED luminaire 1 is attached to the support column PL by the first attachment portion 101 in this way, as shown in FIG. 7, the LED luminaire 1 has the opening 2A line with respect to the horizontal line from the rear portion 1A. The front portion 1B is kept tilted slightly higher by the angle α. The mounting portion 101 is configured so as to be in such a state. As a result, the lens effect of the light distribution unit 82 forms a long light distribution in the left-right direction with respect to the front-rear axis of the LED lighting fixture 1, so that it is possible to irradiate a long road surface in the left-right direction.

Further, in the state where the LED luminaire 1 is attached by the second attachment portion 102, as shown in FIG. 10, in the LED luminaire 1, the line of the opening 2A is at an angle with respect to the horizontal line, and the front portion 1B is at an angle from the rear portion 1A. Keep the tilted state slightly higher by α. The mounting portion 102 is configured so as to be in such a state. As a result, the lens effect of the light distribution unit 82 forms a long light distribution in the left-right direction with respect to the front-rear axis of the LED lighting fixture 1, so that it is possible to irradiate a long road surface in the left-right direction.

By such a first light distribution characteristic unit 83A, the light emission of the LED element 7 spreads in the left-right direction due to the lens effect, and a light distribution extending in the left-right direction is formed on the road surface passing under the LED lighting fixture 1 to the left and right. LED. FIG. 14 shows an example of the light distribution on the road surface in this state.

Next, the configuration in which the optical sensor SS is shielded from external light so as not to malfunction due to external light, and the relationship between the sensor substrate 15H and the control substrate 15 will be described.

As shown in FIGS. 2, 15 to 20, a translucent daylighting cover 40 is provided so as to close the daylighting window 2H provided in the lighting fixture 1, and a light-shielding cover 21 for accommodating the light sensor SS.
The daylighting window 2H is formed on the rear wall 2B of the main body 2, and the daylighting cover 40 is formed from a daylighting head 42 having a flange-formed spherical outer surface that is in close contact with the outer peripheral surface of the daylighting window 2H, and a daylighting window 2H. An elastic tubular joint 43 extending from the back surface of the lighting head 42 so as to extend into the main body 2 inside the lighting fixture 1, and an outer circumference of the tubular joint 43 having a predetermined distance from the lighting head 42. It is provided with elastic locking portions 44 formed at equal intervals.

The light-shielding cover 21 has a tubular accommodating portion 46 that accommodates the optical sensor SS and has a daylighting opening 45 on the daylighting window 2H side so that the tubular coupling portion 43 of the daylighting cover is closely fitted. Further, as a joint portion between the light-shielding cover 21 and the sensor substrate 15H, a flange 47 extending outward of the tubular accommodating portion 46 is provided so as to go around the opening on the opposite side of the lighting opening 45.

For attaching the sensor substrate 15H to the flange 47, a locking claw 48 extending to the opposite side of the tubular accommodating portion 46 is formed on the flange 47, and the locking claw 48 is locked on the sensor substrate 15H. It has a locking hole 49 to be used.
Both sides are elastically locked by the elasticity of the locking claw 48 with respect to the locking hole 49, the surface of the sensor substrate 15H is in close contact with the flange 47 surface, and both are in an annular surface contact state. Therefore, the intrusion of external light from the sensor substrate 15H side into the tubular accommodating portion 46 is blocked.

Since the outer shape of the daylighting head 42 of the daylighting cover 40 is sufficiently larger than the diameter of the daylighting window 2H, the tubular connecting portion 43 is inserted through the daylighting window 2H from behind the rear wall 2B of the main body 2, and the elastic locking portion 44 By pressing the lighting window 2H so as to pass through the daylighting window 2H due to its elasticity, the peripheral portion of the daylighting window 2H is elastically sandwiched between the daylighting head 42 and the elastic locking portion 44. In this state, the lighting cover 40 is held on the rear wall 2B of the main body.

The tubular accommodating portion 46 of the light-shielding cover 21 in which the sensor substrate 15H is coupled to the lighting cover 40 held on the rear wall 2B of the main body in this way is provided with the tubular coupling portion of the lighting cover 40. The elasticity of 43 is used to press-fit the inside of the tubular joint portion 43. As a result, the tubular joint portion 42 is in close contact with the outer surface of the tubular accommodating portion 44, the tubular accommodating portion 46 and the tubular joint portion 43 are in an annular close contact state, and external light enters the tubular accommodating portion 46. It is blocked.

In the embodiment, since the optical sensor SS has a cylindrical shape in which the periphery of the light receiving element is covered with a translucent resin, the tubular accommodating portion 46 and the tubular connecting portion 43 are also cylindrical.
The light-shielding cover 21 is made of an electrically insulating synthetic resin such as PBT (polybutylene terephthalate) having a relatively high rigidity, and is formed into a predetermined shape.
In order to make the tubular connecting portion 43 and the elastic locking portion 44 have elasticity, the lighting cover 40 is made of synthetic resin and is formed into a predetermined shape with an elastic material such as silicon rubber.

The tubular accommodating portion 46 is a portion accommodating the optical sensor SS, forming an arrangement portion 50 for arranging the optical sensor SS in the intermediate portion, and the bottom portion of the arrangement portion 50 is a support portion 53 for the optical sensor SS. The light collection opening 45 in front of the 50 has a tubular shape having substantially the same inner diameter as the outer circumference of the optical sensor SS, and the two leads 54 of the optical sensor SS are located behind the arrangement portion 50, that is, from the support portion 53 to the rear. Through holes 57 through which each passes are formed. As a result, the electrically insulating partition wall 55 that electrically separates the leads 54 between the through holes 57 and 57 is formed integrally with the tubular accommodating portion 46.

The tubular accommodating portion 46 has a small outer peripheral portion 51 whose outer circumference from the end portion on the daylighting opening 45 side to a predetermined range is smaller than the inner diameter of the tubular joint portion 43. Therefore, the small outer shape portion 51 can be inserted inside the tubular joint portion 43 without resistance, and from that state, the tubular accommodating portion 46 is press-fitted into the inside of the tubular joint portion 43 to form the tubular accommodating portion 46 and the cylinder. The elastic coupling work of the shape coupling portion 43 becomes easy.

In the joining work between the tubular accommodating portion 46 and the tubular connecting portion 43, the light-shielding cover 21 extends from the annular flange 47 in order to prevent the light-shielding cover 21 from being joined in a state of being tilted from the normal state. An outer cover tubular portion 52 that covers the outer peripheral surface of the tubular accommodating portion 46 in a tubular shape is formed. As a result, when the light-shielding cover 21 is tilted more than the normal state in the work of joining the tubular joint portion 43 of the lighting cover 40 and the tubular accommodating portion 46 of the light-shielding cover 21, the outer cover tubular portion 52 Since the tip abuts on the peripheral edge of the lighting window 2H, which is the inner surface of the rear wall 2B of the main body 2, its inclination is corrected, and finally the coupling posture in the normal state is obtained.

In order to hold the sensor substrate 15H at a predetermined position in the rear space 4B of the main body 2, a pair of support bosses 56 that the upper ends of the sensor substrate 15H abut and are supported are integrally formed on the upper wall 2T of the main body. As shown in FIG. 15, the support boss 56 has a triangular recess 56B that receives the light-shielding cover 21 or the sensor board 15H, and the light-shielding cover 21 or the sensor board 15H is rearward in a state of being supported by the support boss 56. It is tilted downward and backward along the wall 2B. In the illustrated form, the upper end portion of the light-shielding cover 21 is in contact with the support boss 56.

The tubular accommodating portion 46 has a support portion 53 that supports the back side (lead side) of the optical sensor SS in the arrangement portion 50, so that the two leads 54 of the optical sensor SS are inserted into the through holes 57, respectively. The optical sensor SS can be accommodated at a predetermined position of the tubular accommodating portion 46, and in that state, the lead 54 of the optical sensor SS is inserted into the through hole 58 of the sensor substrate 15H, and the lead 54 is shown in FIG. It is soldered to the wiring portion of the sensor board 15H on the left side surface.

An electrically insulating partition wall 55 is integrally formed between the through holes 57 through which the leads 54 pass between the arrangement portion 50 and the sensor substrate 15H in the light-shielding cover 21, and each through hole 57 is integrally formed in the sensor substrate 15H. Correspondingly, there is an electrically insulating partition wall 59 formed by a part of the sensor substrates 15H between the through holes 58 formed in the sensor substrate 15H. The electrically insulated partition wall 55 and the electrically insulated partition wall 59 can prevent the leads 54 of the optical sensor SS from coming into contact with each other.

As described above, in a state where the light-shielding cover 21 to which the sensor substrate 15H electrically connected to the optical sensor SS is coupled and the lighting cover 40 are coupled, as shown in the figure, the upper end portion of the sensor substrate 15H is the main body. The sensor substrate 15H is tilted downward and rearward along the rear wall 2B while being supported by the support boss 56 integrally formed with the upper wall 2T.

In this state, by mounting the control board 15 in the main body 2 as described above, the rear end portion of the control board 15 is in a state of being close to or in contact with the upper portion of the front side surface of the sensor board 15H. Even if the rear end of the control board 15 comes into contact with the sensor board 15H, the light-shielding cover 21 or the upper end of the sensor board 15H is supported by the support boss 56, so that the sensor board 15H is pushed and displaced. There is no.
As a result, the control board 15 can prevent the sensor board 15H from retreating, so that even if the light-shielding cover 21 tries to move in a direction away from the daylighting cover 40 due to vibration or the like, the coupling can be maintained so as not to come off, and the light can be maintained. It is possible to maintain a state of blocking unnecessary external light that tries to enter the sensor SS.
The sensor substrate 15H can be held in such a configuration that is not screwed.

In the embodiment, the translucent cover 3 is provided, but in the present invention, the light distribution unit 82 is integrated so that the light distribution unit 8 also serves as the translucent cover 3 without providing the translucent cover 3. By widening the flat area of the plate-shaped portion 81 to be formed,
The same effect can be obtained even when the light distribution unit 8 is formed in a size that covers the entire opening 2A inside the flange 2F that surrounds the peripheral edge of the opening 2A of the main body 2.

1 Lighting equipment 2 Main body 2A Main body opening 2B Rear wall 2F Flange 2H Daylighting window 3 Daylighting cover 4 Internal space 4A Front space 4B Rear space 5 LED board 6 Light emitting part 7 LED element 8 Daylighting unit 10 Mounting part 11 Heat conduction rib 14 Control part 15 Control board 21 Light-shielding cover 40 Daylighting cover 42 Daylighting head 43 Cylindrical joint part 44 Elastic locking part 45 Daylighting opening 46 Cylindrical housing part 47 Flange 48 Locking claw 49 Locking hole 50 Arrangement part 51 Small outer shape 52 Outer cover tubular part 53 Support part 55 Electrically insulated partition 56 Support boss

Claims (2)

In a lighting fixture including a light source that emits light directed at a required location, an optical sensor that detects the brightness and darkness of the surroundings, and a control unit that controls the light emission of the light source based on the detection of the optical sensor.
A daylighting window provided in the lighting fixture to take in ambient light into the light sensor, a translucent daylighting cover attached so as to block the daylighting window, a sensor substrate to which the light sensor is attached, and the light sensor are housed. Equipped with a light-shielding cover
The daylighting cover comprises an elastic tubular joint extending from the daylighting window into the luminaire.
The light-shielding cover includes a tubular accommodating portion that accommodates the optical sensor and has a daylighting opening on the daylighting window side, a flange that circulates around the opening on the opposite side of the daylighting opening, and a flange that contacts the sensor substrate on an annular surface. Equipped with a locking claw that extends from the to the opposite side of the tubular housing
The sensor substrate has a locking hole and has a locking hole.
When the locking claw is locked in the locking hole, the flange and the sensor substrate come into contact with each other on an annular surface.
The tubular joint portion of the lighting cover is annularly adhered to the tubular accommodating portion of the light-shielding cover.
Lighting equipment that is characterized by that. The light-shielding cover includes an outer covering tubular portion that extends from the flange and covers the outer peripheral surface of the tubular accommodating portion in a tubular shape.
In the annular close contact state between the tubular joint portion of the daylighting cover and the tubular accommodating portion of the light-shielding cover, the tip of the outer cover tubular portion abuts or approaches the peripheral edge portion of the daylighting window .
The end of the control board included in the control unit abuts or approaches the sensor board.
The lighting equipment according to claim 1 .

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