JP6667156B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture, and more particularly, to a lighting fixture in which a solid-state light emitting element is used as a light source, and a light source and a power supply device for turning on the light source are housed in the lighting device body.

  As a conventional example, a lighting device described in Patent Document 1 is exemplified. A lighting device described in Patent Document 1 (hereinafter referred to as a conventional example) includes a main body, an upper lid, an LED light emitting unit, a power supply block, a light emitting panel, and the like, and is used for road lighting. The main body is supported by an arm that protrudes in a horizontal direction from a lighting pole standing on the side of a road. The upper lid has an LED light emitting unit and a power supply block attached to the lower surface, and is attached to the main body so as to cover the upper surface of the main body. The light emitting panel has a light transmitting property, is attached to a lower surface of the main body, and transmits light emitted from the LED light emitting unit while covering the LED light emitting unit.

JP 2011-210469 A

  In the above-mentioned conventional example, the heat generated by the LED light emitting section and the heat generated by the power supply block are radiated from the heat radiation fins provided on the metal upper cover. However, in some cases, it is not possible to provide a heat radiating member (radiating fin in the conventional example) on a member supporting the light source (LED light emitting unit in the conventional example) and the power supply device (power supply block in the conventional example). In this case, it is not preferable that heat is mutually transmitted between the light source and the power supply device via the support member.

  The present invention has been made in view of the above problems, and has as its object to suppress heat conduction between a light source and a power supply device.

The lighting fixture of the present invention has an opening on a first surface and a box-shaped fixture body having a window hole on a second surface opposite to the first surface, and the first fixture attached to the fixture main body. A lighting device including: a cover that covers one surface; a glove having a light-transmitting property and attached to the appliance main body so as to cover the window hole; and a lighting unit housed in the appliance main body. One or more light sources, a power supply device for supplying power to the light sources to light them, a mounting plate on which the light sources are mounted on a first mounting surface facing the window hole, and the first plate in a thickness direction. A fixing member fixed to a second mounting surface of the mounting plate opposite to the mounting surface, wherein the fixing member includes a mounting portion to which the power supply device is mounted, and a second portion of the mounting plate. One or more fixing portions fixed to the mounting surface; Or one or more connecting portions for connecting the plurality of fixing portions and the mounting portion, and the mounting portion and the second mounting surface of the mounting plate are provided by one or more connecting portions. A gap is provided between the power supply devices, and the power supply device faces the second mounting surface of the mounting plate with the mounting portion interposed therebetween .

  The lighting fixture of the present invention has an effect that heat conduction between the light source and the power supply device can be suppressed.

1A is a front view, FIG. 1B is a plan view, FIG. 1C is a bottom view, FIG. 1D is a rear view, and FIG. 1E is a right side view of the lighting fixture according to Embodiment 1 of the present invention. It is an exploded perspective view of the lighting fixture concerning Embodiment 1 of the present invention. It is a top view of a fixture main part in a lighting fixture concerning Embodiment 1 of the present invention. It is a perspective view showing the arm attachment pedestal in the lighting fixture concerning Embodiment 1 of the present invention. It is a front view of the lighting unit in the lighting fixture concerning Embodiment 1 of the present invention. FIG. 4 is a bottom view of the lighting unit according to the first embodiment of the present invention, in which a lens of one LED unit is omitted and a lens and a holder of another LED unit are omitted. It is a right view of the lighting unit in the lighting fixture concerning Embodiment 1 of the present invention. FIG. 3 is a partially cutaway perspective view including an arm in the lighting fixture according to Embodiment 1 of the present invention. It is the top view which omitted the cover of the lighting fixture concerning Embodiment 1 of the present invention. It is a front sectional view of the lighting fixture concerning Embodiment 1 of the present invention. It is sectional drawing which shows the principal part of the modification of the lighting fixture which concerns on Embodiment 1 of this invention. FIG. 12A is a rear view, FIG. 12B is a left side view, FIG. 12C is a plan view, and FIG. 12D is a bottom view showing a lighting fixture according to Embodiment 2 of the present invention. It is an exploded perspective view of the lighting fixture concerning Embodiment 2 of the present invention.

  Hereinafter, a lighting fixture according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the configurations described in the following embodiments are merely examples of the present invention. The present invention is not limited to the following embodiments, and various changes can be made according to the design and the like without departing from the technical idea according to the present invention.

(Embodiment 1)
A lighting fixture X (hereinafter, referred to as a lighting fixture X) according to the first embodiment of the present invention is attached to an upper end of a pole (not shown) that stands on the ground, and is used to cover a road (a roadway or a sidewalk) around the pole. It is a road light (or street light) for lighting. However, in the following description, up and down, left and right, and front and rear directions are defined in FIG. 2 unless otherwise specified. That is, the axial direction (vertical direction) of the pole is the up-down direction, the side of the arm 5 is the rear, and the side opposite to the arm 5 is the front.

  As shown in FIGS. 1A to 1E and 2, the lighting fixture X includes a fixture main body 1, a cover 2, a lighting unit 3, a globe 4, an arm 5, and the like. The appliance main body 1 is formed of a metal material such as aluminum or an aluminum alloy into a box shape with an open upper surface (first surface). More specifically, the device main body 1 is formed in a bowl shape. Further, as shown in FIGS. 2 and 3, the appliance body 1 has a circular window hole 10 opened on the bottom surface (second surface), a peripheral wall 11 surrounding the entire periphery of the window hole 10, and a peripheral wall 11. A first step portion 12 and a second step portion 13 are provided inwardly from the inner peripheral surface of the step 11 and protrude stepwise. The first step portion 12 is substantially at the center in the vertical direction of the peripheral wall 11, and is formed in an annular shape when viewed from above. The second step portion 13 is located inside the first step portion 12 and is formed in an annular shape when viewed from above. The second step 13 is disposed below the first step 12. That is, the inner peripheral edge of the second step portion 13 is connected to the peripheral edge of the window hole 10 when viewed from above. Each of the first step portion 12 and the second step portion 13 is formed substantially parallel and flat to the opening surface of the window hole 10 (a virtual plane including the periphery of the window hole 10).

  The first step portion 12 is provided such that a plurality of (six in the illustrated example) female screw portions 120 are arranged at substantially equal intervals along the circumferential direction. The six female screw portions 120 are formed so as to open upward with their axial directions aligned with the vertical direction.

  Further, the device main body 1 is provided with a plurality of (six in the illustrated example) bosses 14 arranged at equal intervals along the circumferential direction on the upper end surface of the peripheral wall 11. These six bosses 14 are formed in a columnar shape with the axial direction up and down, and each have a screw hole 140 along the axial direction. These screw holes 140 open upward on the upper bottom surface of the boss 14.

  Further, the instrument body 1 includes an arm mounting base 15. As shown in FIG. 4, the arm mounting pedestal 15 is formed at the rear of the peripheral wall 11 in a truncated pyramid shape protruding from the outer peripheral surface of the peripheral wall 11. The arm mounting base 15 has a pair of bolt insertion holes 150 and a communication hole 151. The pair of bolt insertion holes 150 penetrate the arm mounting base 15 and the peripheral wall 11 and are formed in a cylindrical shape. The communication hole 151 is formed in a long cylindrical shape through the arm mounting base 15 and the peripheral wall 11 between the pair of bolt insertion holes 150 (see FIGS. 2 to 4).

  As shown in FIGS. 1B and 2, the cover 2 has a cover body 20 having a circular shape when viewed from above and below, and a protruding wall 21 protruding downward from the periphery of the cover body 20. The cover main body 20 is formed in an arc shape that is convex upward when viewed from the front and rear direction and the left and right direction (see FIGS. 1A, 1D, and 1E). The cover 2 is formed by, for example, drawing a metal plate such as an aluminum plate, so that the cover body 20 and the protruding wall 21 are integrally formed.

  In the vicinity of the peripheral edge of the cover body 20, a plurality (six in the illustrated example) of recesses 22 are provided so as to be arranged at equal intervals along the circumferential direction (see FIGS. 1B and 2). Further, a circular screw insertion hole 220 is provided at the bottom of each of the six concave portions 22.

  The cover 2 is placed on the instrument body 1 such that the tip (lower end) of the protruding wall 21 faces the tip (upper end) of the peripheral wall 11 (see FIGS. 1A, 1D, and 1E). The six fixing screws 23 inserted into the six screw insertion holes 220 provided in the cover main body 20 are respectively screwed into the screw holes 140 provided in the six bosses 14 of the instrument main body 1. (See FIGS. 1B and 2). That is, the cover 2 is screwed to the peripheral wall 11 of the appliance main body 1 and covers the opening on the upper surface of the appliance main body 1 (a virtual plane including the upper end of the peripheral wall 11). However, between the peripheral wall 11 of the instrument body 1 and the protruding wall 21 of the cover 2, a waterproof packing (not shown) formed in an annular shape with silicone rubber or the like is arranged. It is preferable that rainwater is prevented from entering into the appliance body 1 through the gap.

  The glove 4 has a glove body 40 and an outer flange 41. It is preferable that the glove body 40 and the outer flange portion 41 are integrally formed of a light-transmitting material (for example, polycarbonate resin) (see FIG. 2). However, the translucent material forming the globe 4 may be acrylic resin or glass. The globe body 40 has a circular shape when viewed from the up-down direction, and a light-transmitting portion 400 formed in an arc shape having a downwardly convex shape when viewed from the front-rear direction and the left-right direction. And a cylindrical outer peripheral wall 401 protruding upward. The outer flange portion 41 is formed in an annular shape protruding outward from the upper end of the outer peripheral wall 401 of the glove body 40 over the entire circumference. The outer flange 41 is provided with a waterproof packing 42 made of silicone rubber. The waterproof packing 42 is formed in an annular shape when viewed from above and below. The outer flange portion 41 of the waterproof packing 42 is fitted into a groove 420 (see FIG. 2) formed on the inner peripheral surface over the entire periphery.

  As shown in FIGS. 2 and 5 to 7, the lighting unit 3 includes a plurality (four in the illustrated example) of LED units 30, a mounting plate 31, a power supply unit 32, and the like. In the following description, in FIG. 6, the upper left LED unit 30 may be referred to as a first LED unit 30A, and the upper right LED unit 30 may be referred to as a second LED unit 30B. Similarly, the lower left LED unit 30 may be referred to as a third LED unit 30C, and the lower right LED unit 30 may be referred to as a fourth LED unit 30D. However, all four LED units 30 (the first LED unit 30A, the second LED unit 30B, the third LED unit 30C, and the fourth LED unit 30D) have the same structure.

  As shown in FIG. 6, the LED unit 30 includes an LED module 300, a holder 301, a lens 302, an insulating cover 303, a mounting base 304, and the like. However, in FIG. 6, the illustration of the lenses 302 of the second LED unit 30B and the fourth LED unit 30D and the holder 301 of the fourth LED unit 30D is omitted.

  The LED module 300 includes a disk-shaped light emitting unit 3001 on the surface of a rectangular plate-shaped ceramic package 3000 (see the fourth LED unit 30D in FIG. 6). The light emitting unit 3001 is configured by sealing a large number of LED chips (not shown) mounted on the surface of the package 3000 with a light-transmitting sealing resin such as a silicone resin. The many LED chips are, for example, blue LED chips that emit blue light. The LED module 300 converts a part of the blue light radiated from these LED chips into a yellow light by a phosphor mixed in a sealing resin, and mixes the blue light and the yellow light to emit light. Is configured to emit white light. Further, a pair of terminal blocks 3002 is mounted on an end of the package 3000. The pair of terminal blocks 3002 are individually and electrically connected to a pair of electrodes (anode electrode and cathode electrode) formed on the surface of the package 3000, respectively. The power supply wires 305 are electrically connected to the respective terminal blocks 3002 (see FIG. 6). However, the electric wire 305 may be directly connected to a pair of electrodes (anode electrode and cathode electrode) without passing through the terminal block 3002.

  The LED module 300 is mounted on a mounting base 304 via an insulating cover 303. The mounting table 304 is formed in a polygonal shape (octagon in the illustrated example) from an aluminum plate or an aluminum alloy plate. The insulating cover 303 is formed in a rectangular frame shape from a synthetic resin material having electrical insulation properties, and has the LED module 300 fitted therein (see the fourth LED unit 30D in FIG. 6). The holder 301 is formed in an approximately pentagonal plate shape from a synthetic resin material having electrical insulation. The holder 301 has a through hole 3010 penetrating in the thickness direction. This through hole 3010 has an inner peripheral surface formed in a truncated cone shape. The holder 301 is screwed to the mount 304 so as to sandwich the LED module 300 between the holder 301 and the insulating cover 303 (see the second LED unit 30B in FIG. 6). Note that the light emitting unit 3001 of the LED unit 30 is exposed through the through hole 3010 of the holder 301. The lens 302 is formed in a substantially semi-ellipsoidal shape using a light-transmitting synthetic resin material such as a polycarbonate resin or an acrylic resin. The lens 302 has L-shaped legs 3020 projecting outward from both ends in the long axis direction (see FIGS. 5 to 7). An insertion hole penetrating in the thickness direction is formed in the pair of legs 3020. The lens 302 is screwed to the mounting table 304 with a screw 306 inserted into an insertion hole of the pair of legs 3020 so as to cover the light emitting unit 3001 when viewed from the thickness direction (vertical direction) of the LED unit 30. (See FIGS. 5 to 7). However, the lens 302 has a recess 3021 formed on the rear end side (the side from which the electric wire 305 is drawn out) in the short axis direction (see the third LED module 30C in FIG. 6). Due to the recess 3021, the light of the light emitting unit 3001 reflected on a part of the inner peripheral surface of the through hole 3010 of the holder 301 is emitted backward without entering the lens 302.

  The mounting plate 31 is formed in a substantially disk shape by a plate material of aluminum or an aluminum alloy. In the following description, of the two surfaces of the mounting plate 31, the surface on which the LED unit 30 is mounted is referred to as a first mounting surface 310 (see FIG. 6), and the surface on which the power supply unit 32 is mounted is referred to as the first mounting surface 310. It is referred to as a second mounting surface 311 (see FIG. 2). In the vicinity of the edge of the mounting plate 31, six screw insertion holes 313 penetrate at intervals along the circumferential direction (see FIGS. 2 and 6).

  The four LED units 30 are mounted in the center of the first mounting surface 310 of the mounting plate 31 in two rows each in the vertical direction (front-back direction) and the horizontal direction (left-right direction). The four LED units 30 are each fixed to the mounting plate 31 by screwing the mounting base 304 (see FIG. 6). Further, the mounting plate 31 includes four through holes 312 into which a pair of electric wires 305 included in the four LED units 30 are respectively inserted (see FIG. 6). That is, the four pairs of electric wires 305 are inserted into the through holes 312 from the first mounting surface 310 side of the mounting plate 31 and are drawn out to the second mounting surface 311 side.

  Here, on the first mounting surface 310 of the mounting plate 31, the reflecting members 33 are arranged behind the first LED unit 30A and the second LED unit 30B, and behind the third LED unit 30C and the fourth LED unit 30D, respectively ( 5 to 7). As shown in FIGS. 5 to 7, these two reflecting members 33 protrude from the long reflecting plate 330 and one end along the longitudinal direction of the reflecting plate 330 along the thickness direction of the reflecting plate 330. And a fixing piece 331. The reflection plate 330 is curved in an arc shape along the short direction (see FIG. 7). Further, the reflector 330 is formed so that the length in the longitudinal direction is not shorter than twice the length in the longitudinal direction of the mounting base 304 of the LED unit 30 (see FIG. 6). The reflection plate 330 and the fixing piece 331 are preferably formed integrally by, for example, punching and bending an aluminum plate. The two reflecting members 33 are fixed to the mounting plate 31 by screwing both ends and the center of the fixing piece 331 in the longitudinal direction (see FIG. 6).

  As shown in FIG. 2, the power supply unit 32 includes a power supply device 320, a control device 321 and a fixing member 322. The power supply device 320 includes a power supply circuit (not shown) that supplies DC power to the four LED units 30, and a first metal case 3200 that houses the power supply circuit therein. The power supply circuit includes, for example, a rectifier for rectifying an AC voltage / AC current supplied from a commercial power system, a DC / DC converter for converting a pulsating voltage / pulsating current rectified by the rectifier into a DC voltage / DC current, and the like. have. Further, the power supply circuit includes an input terminal block electrically connected to a power supply line (not shown) serving as an electric path of an AC voltage and an AC current, an output terminal of the DC / DC converter, and electric wires 305 of the four LED units 30. And an output terminal block, etc., electrically connected to each other. The power supply circuit is configured by mounting a circuit component constituting a rectifier and a DC / DC converter, an input terminal block, an output terminal block, and the like on one or a plurality of printed wiring boards. The power supply circuit operates when an AC voltage / AC current is supplied from the outside and outputs a DC voltage / DC current, and stops when no AC voltage / AC current is supplied from the outside. For example, the power supply circuit is supplied with an AC voltage and an AC current from a power system via a photoelectric automatic blinker (not shown), and operates when the ambient brightness is within the operating illuminance of the photoelectric automatic blinker. It is configured to operate in a band (for example, a period from sunset to sunrise).

  The control device 321 includes a control circuit (not shown) that controls a power supply circuit of the power supply device 320, and a second metal case 3210 that houses the control circuit therein. The control circuit is configured, for example, to control a DC / DC converter to perform step light control and timer control. That is, the control circuit uses the built-in timer to elapse the time elapsed from the lighting start time (the time point when the supply of the AC voltage / AC current is started from the outside). Then, when the elapsed time reaches the dimming start time, the control circuit controls the DC / DC converter of the power supply circuit to make the current value of the output current of the power supply device 320 smaller than the rated value and perform stepwise dimming. . The control circuit stops operating together with the power supply circuit when the supply of the AC voltage / AC current from the outside is stopped, and the elapsed time of the built-in timer is reset (initialized). However, the control operation of the control circuit described above is only an example, and the control circuit may perform step dimming according to a control signal input from an external time switch (not shown), for example. The control circuit includes a control integrated circuit, a control power supply circuit, a signal terminal block for outputting a control signal to the power supply circuit, and a step dimming level on one or more printed wiring boards (not shown). And a changeover switch for setting a dimming start time and the like. Note that, like the power supply circuit, the control circuit operates when an external AC voltage / AC current is supplied, and stops when the external AC voltage / AC current is not supplied.

  The fixing member 322 includes a first mounting portion 3220, a pair of fixing portions 3221, a pair of connecting portions 3222, a second mounting portion 3223, and an upright wall portion 3224, as shown in FIGS. . The first mounting portion 3220 is formed in a long rectangular plate shape. The pair of fixing portions 3221 are each formed in a narrow rectangular plate shape having a length in the longitudinal direction equal to the length in the short direction of the first mounting portion 3220. Note that the pair of fixing portions 3221 are provided with through holes (not shown) near both ends in the longitudinal direction. The pair of connecting portions 3222 are each formed in a narrow rectangular plate shape having a length in the longitudinal direction equal to the length in the short direction of the first mounting portion 3220. The pair of connecting portions 3222 is connected at one end along the longitudinal direction to one end along the short direction of the first mounting portion 3220, and at the other end along the longitudinal direction, at the other end along the longitudinal direction. It is connected separately to one end along the direction. The upright wall portion 3224 is formed in a rectangular plate shape having a longitudinal length equal to the longitudinal length of the first mounting portion 3220. The upright wall portion 3224 rises from one end along the longitudinal direction of the first attachment portion 3220 in a direction opposite to the connection portion 3222. The second mounting portion 3223 is formed in a rectangular plate shape having a longitudinal length equal to the longitudinal length of the first mounting portion 3220. The second mounting portion 3223 protrudes from a tip along the longitudinal direction of the upright wall portion 3224 in a direction opposite to the first mounting portion 3220. The first mounting portion 3220, the pair of fixing portions 3221, the pair of connecting portions 3222, the second mounting portion 3223, and the upright wall portion 3224 are integrally formed by, for example, punching and bending a metal plate such as a galvanized steel plate. It is preferably formed.

  The power supply device 320 is attached to the first attachment portion 3220. In the power supply device 320, a pair of projecting pieces 3201 provided on the first case 3200 are screwed to the first mounting portion 3220 (see FIGS. 2 and 5). However, between the first case 3200 and the first mounting portion 3220, a heat conductive sheet 323 having electrical insulation is sandwiched (see FIG. 2). The control device 321 is attached to the second attachment portion 3223. In the control device 321, a pair of projecting pieces 3211 provided on the second case 3210 are screwed to the second mounting portion 3223 (see FIGS. 2 and 5).

  The pair of fixing portions 3221 are screwed to the mounting plate 31 by screws inserted into through holes at both ends being screwed into screw holes (not shown) provided in the mounting plate 31. Here, when the fixing member 322 is attached to the second attachment surface 311 of the attachment plate 31, the first attachment portion 3220 and the (second attachment surface 311 of) the attachment plate 31 are connected by the pair of connecting portions 3222. A gap SS is provided between them (see FIG. 5). That is, since the gap SS is provided between the first attachment portion 3220 and the attachment plate 31, an air layer is formed between the first attachment portion 3220 and the (second attachment surface 311 of) the attachment plate 31. Is done. Therefore, heat generated from the four LED units 30 attached to the first attachment surface 310 is less likely to be transmitted to the fixing member 322 (particularly, the first attachment portion 3220). The first mounting portion 3220 is thermally connected to the mounting plate 31 via a pair of fixing portions 3221 and a connecting portion 3222. However, if the fixing member 322 is formed of a metal material (e.g., a steel plate) having a sufficiently lower thermal conductivity than the metal material (e.g., aluminum) forming the attachment plate 31, the first attachment from the attachment plate 31. Transmission of heat to the portion 3220 can be suppressed.

  The four through holes 312 provided in the mounting plate 31 are covered and covered by the first mounting portions 3220 of the fixing member 322 from above. However, the electric wire 305 drawn from the through hole 312 to the second mounting surface 311 side is passed through the gap SS provided between the first mounting portion 3220 and the mounting plate 31 and the output of the power supply device 320 ( Terminal block).

  The arm 5 has a first fixing part 50 fixed to the instrument body 1 and a second fixing part 51 fixed to the pole (see FIGS. 1E and 2). It is preferable that the first fixing portion 50 and the second fixing portion 51 are formed integrally by aluminum die casting. The second fixing portion 51 is formed in a cylindrical shape. The second fixing portion 51 is provided with a plurality (four in the illustrated example) of screw holes 510 penetrating in the radial direction (thickness direction) (see FIG. 1D). The second fixing portion 51 covers a small-diameter portion (not shown) provided at the tip of the pole from above, and the tip of a screw screwed into each of the four screw holes 510 hits the small-diameter portion of the pole. Fixed. Here, the electric wire fixing member 52 is accommodated in the second fixing portion 51. The electric wire fixing member 52 is formed in a long rectangular flat plate shape. As shown in FIG. 1D and FIG. 1E, a plurality (four in the illustrated example) of cable fixing members 520 are screwed to the rear surface of the electric wire fixing member 52. One of the two cable fixing members 520 screwed to the upper part of the electric wire fixing member 52 has a pair of electric wires (not shown) for inputting an AC voltage and an AC current to the power supply device 320. Zu) is fixed. This pair of electric wires is called a lead wire. The other cable fixing member 520 of the two cable fixing members 520 screwed to the upper part of the electric wire fixing member 52 is connected to a signal line (FIG. (Not shown) is fixed. Further, one of the two cable fixing members 520 screwed to the lower portion of the electric wire fixing member 52 is fixed with a power supply line (not shown) which is set up and wired in the pole. Have been. This power line is electrically connected to the lead wire. A signal line (light control light) connected to an external time switch is fixed to the other cable fixing member 520 of the two cable fixing members 520 screwed to the lower portion of the electric wire fixing member 52. Have been. The light control light (not shown) is electrically connected to a signal line.

  The first fixing part 50 protrudes forward from the upper part of the second fixing part 51. The first fixing portion 50 is formed in a substantially triangular prism shape. The upper surface of the first fixing portion 50 is opened. The opening on the upper surface of the first fixing portion 50 is closed by a removable lid 53 (see FIGS. 1B and 2). At the front end of the first fixing portion 50, a concave portion 500 that is engaged with the arm mounting base 15 of the instrument main body 1 is provided (see FIG. 2). Further, as shown in FIG. 2, a plurality of (two in the illustrated example) female screw portions 501 and an electric wire insertion hole 502 are provided at the bottom of the concave portion 500. The two female threads 501 are formed on the inner peripheral surface of a cylindrical projection (boss) that projects obliquely upward and forward from the bottom of the recess 500. Note that these two female screw portions 501 are provided at the bottom of the recess 500 with an interval in the left-right direction. The electric wire insertion hole 502 is formed in an elongated cylindrical shape through the bottom of the recess 500 between the two female screw portions 501 (see FIG. 2).

  As shown in FIG. 8, the two female screw portions 501 are separately formed from the pair of bolt insertion holes 150 of the instrument body 1 in a state where the first fixing portion 50 is engaged with the arm mounting base 15 of the instrument body 1. It is connected. Therefore, the two bolts 152 inserted into the pair of bolt insertion holes 150 are separately screwed into the two female screw portions 501, so that the first fixing portion 50 of the arm 5 is screwed to the arm mounting base 15 of the instrument body 1. Has been fixed. In a state where the first fixing portion 50 is fixed to the arm mounting pedestal 15, the communication hole 151 of the arm mounting pedestal 15 and the electric wire insertion hole 502 of the first fixing portion 50 are connected. The lead wire drawn from the power supply device 320 and the signal line drawn from the control device 321 are inserted into the through hole 151 and the electric wire insertion hole 502, and are drawn into the second fixing portion 51.

  Here, the bolt insertion hole 150 and the female screw portion 501 have a direction in which the bolt 152 is inserted with respect to a normal line (vertical straight line) on the upper surface of (the upper part of) the instrument body 1 larger than zero and smaller than a right angle. It is provided at an angle φ (see FIG. 8). Note that this angle φ is preferably about 35 ° to 45 °.

  Next, an assembling procedure of the lighting fixture X will be described. First, the worker performing the assembling work attaches the four LED units 30 to the first attachment surface 310 of the attachment plate 31 and attaches the power supply unit 32 to the second attachment surface 311 of the attachment plate 31 to turn the lighting unit 3 on. assemble. Then, the worker inserts the outer flange portion 41 into the groove 420 of the waterproof packing 42 and attaches the waterproof packing 42 to the glove 4. Further, the operator inserts the glove main body 40 into the window hole 10 from above the appliance main body 1, places the outer flange 41 covered with the waterproof packing 42 on the second step portion 13, and then turns on the lighting unit. The third mounting plate 31 is placed on the first step portion 12 (see FIGS. 9 and 10). At this time, the six screw insertion holes 313 provided in the mounting plate 31 and the six female screw portions 120 provided in the first step portion 12 are separately connected in the vertical direction. Then, the operator inserts screws (not shown) from above into the six screw insertion holes 313 of the mounting plate 31, and screws the six screws into the six female screw portions 120, respectively. Is attached to the instrument body 1. At this time, the glove 4 is attached to the appliance main body 1 with the outer flange portion 41 sandwiched between the mounting plate 31 and the second step portion 13 of the appliance main body 1 via the waterproof packing 42 (see FIG. 10).

  Subsequently, the worker fixes the first fixing portion 50 of the arm 5 to the arm mounting base 15 of the instrument body 1 using the two bolts 152 as described above. Here, the direction in which the bolt 152 is inserted into the bolt insertion hole 150 is inclined at an angle φ with respect to the normal to the upper surface of the instrument body 1. Therefore, when tightening the bolt using a tool, it is not necessary to put a worker's hand in the tool main body 1 and the workability is improved. When the angle φ is zero, that is, when the direction in which the bolt 152 is inserted into the bolt insertion hole 150 coincides with the normal direction of the upper surface of the instrument body 1, the length of the female thread portion 501 of the arm 5 is increased to secure the length. There is a possibility that one fixing portion 50 becomes large. On the other hand, if the angle φ is larger than zero and smaller than a right angle, it is possible to improve the workability and to suppress an increase in the size of the arm 5.

  Further, in the instrument main body 1, the first step portion 12 to which the mounting plate 31 is screwed is disposed below the bolt insertion hole 150. Therefore, the lighting unit 3 can be attached to the instrument body 1 before the arm 5 is attached to the instrument body 1. Therefore, the arm 5 does not hinder the work of attaching the lighting unit 3 to the appliance body 1, and the workability of assembly can be improved.

  Further, since the power supply unit 32 is mounted at a position away from the bolt insertion hole 150 (the center of the mounting plate 31), the power supply unit 320 and the control device 321 of the power supply unit 32 hinder the work when the bolt 152 is tightened. Hard to be. Therefore, the lighting fixture X can further improve the workability of assembly.

  After attaching the arm 5, the operator puts the cover 2 on the peripheral wall 11 of the instrument body 1, and inserts the six fixing screws 23 into the six screw insertion holes 220 of the cover body 20 from above, respectively. The cover 2 is fixed by screwing into the screw holes 140 of the six bosses 14 of the instrument body 1 individually. When the cover 2 is attached to the fixture main body 1 in this manner, the assembling work of the lighting fixture X is completed.

  As described above, the worker can assemble the lighting unit 3, the glove 4, and the cover 2 in the same direction (downward) with respect to the appliance body 1. That is, since the worker does not need to reverse the direction of the instrument body 1 during the operation, for example, it is possible to improve the workability of the assembly as compared with a structure in which the glove is attached from below the instrument body. it can.

  In the lighting fixture X, the second fixing portion 51 of the arm 5 is fixed to the tip of the pole and attached to the pole. The four LED units 30 control the light distribution of the light emitted from the LED module 300 by the lens 302 and reflect a part of the light that cannot be controlled by the lens 302 (light emitted to the rear of the lens 302). The light is reflected by the plate 330. As a result, the lighting fixture X can increase the amount of light forward in order to illuminate the entrance of the building or the like. However, the light distribution characteristic of the lighting apparatus X is an example, and is a light distribution characteristic that irradiates the entire periphery of the pole with a substantially uniform light amount or increases the light amount on both the left and right sides of the pole along the road. No problem.

  As described above, the lighting fixture X has a box-shaped fixture body 1 having a first surface (upper surface) opened and a window hole 10 on a second surface (lower surface) opposite to the first surface. A cover 2 attached to the instrument body 1 to close the first surface. The lighting fixture X has a translucent property, and includes a globe 4 attached to the fixture main body 1 so as to close the window hole 10, and a lighting unit 3 housed in the fixture main body 1. . The lighting unit 3 includes one or a plurality of light sources (LED units 30), a power supply device 320 that supplies power to the LED units 30 and turns them on, and the LED units 30 mounted on the first mounting surface 310 facing the window hole 10. And a mounting plate 31 which is provided. Further, the lighting unit 3 has a fixing member 322 fixed to the second mounting surface 311 of the mounting plate 31 on the side opposite to the first mounting surface 310 in the thickness direction. The fixing member 322 has a mounting portion (first mounting portion 3220) to which the power supply device 320 is mounted, and one or a plurality of fixing portions 3221 fixed to the second mounting surface 311 of the mounting plate 31. ing. In addition, the fixing member 322 has one or more connecting portions 3222 that connects one or more fixing portions 3221 and the first mounting portion 3220. Further, the fixing member 322 provides a gap SS between the first mounting portion 3220 and the second mounting surface 311 of the mounting plate 31 by one or a plurality of connecting portions 3222.

  If the luminaire X is configured as described above, the gap SS is provided between the first mounting portion 3220 and the mounting plate 31, so that the second mounting surface of the first mounting portion 3220 and the mounting plate 31 ( 311), an air layer is formed. Therefore, the lighting fixture X makes it difficult for the heat generated from the LED unit 30 attached to the first attachment surface 310 to be transmitted to the fixing member 322, and the heat conduction between the light source (LED unit 30) and the power supply device 320. Suppression can be achieved.

  Further, in the lighting fixture X, the lighting unit 3 preferably includes an electric wire 305 serving as a power supply path from the power supply device 320 to one or more LED units 30. The electric wire 305 is preferably inserted into a through hole 312 penetrating the mounting plate 31 to electrically connect the power supply device 320 and one or more LED units 30 respectively.

  If the luminaire X is configured as described above, the power supply device passes the electric wire 305 drawn from the through hole 312 to the second mounting surface 311 through the gap SS between the first mounting portion 3220 and the mounting plate 31. 320 can be electrically connected. Therefore, in the lighting fixture X, the gap SS between the first mounting portion 3220 and the mounting plate 31 can be used as a wiring space for the electric wire 305.

  By the way, if the power supply device 320 (the first case 3200 thereof) and the cover 2 are thermally coupled, the heat generated by the power supply device 320 can be conducted to the cover 2 to improve heat dissipation. For example, as shown in FIG. 11, it is preferable that the power supply device 320 and the cover 2 are thermally coupled by the heat conducting member 24 disposed between the first case 3200 and the cover 2 (the cover main body 20). . In addition, as such a heat conductive member, for example, a graphite sheet manufactured by Panasonic Corporation is suitable.

  In the lighting fixture X, the lighting unit 3 preferably includes the heat conductive member 24 thermally coupled to the power supply device 320. The heat conduction member 24 is preferably in contact with the cover 2.

  If the lighting fixture X is configured as described above, the heat dissipation of the power supply device 320 can be improved.

(Embodiment 2)
A lighting fixture XX (hereinafter, referred to as a lighting fixture XX) according to Embodiment 2 of the present invention will be described with reference to FIGS. 12A to 12D and FIG. However, since the lighting fixture XX has the same basic configuration as the lighting fixture X according to the first embodiment, even if there is a slight difference in shape and the like, the components having the same function as those in the first embodiment are used. The same reference numerals as those of the lighting fixture X according to the first embodiment are used, and illustration and description thereof are omitted.

  The lighting fixture XX is characterized by the structure of an arm 6 for attaching the fixture main body 1 to a pole. The arm 6 includes three first fixing portions 60, a second fixing portion 61, and an electric wire fixing member 62. The second fixing portion 61 is formed in a cylindrical shape similarly to the second fixing portion 51 in the first embodiment, and provided with four screw holes 610 penetrating in a radial direction (thickness direction) (see FIG. 12A). . The second fixing portion 61 covers the small-diameter portion (not shown) provided at the tip of the pole from above, and the tip of the screw screwed into the four screw holes 610 hits the small-diameter portion of the pole. Fixed. The electric wire fixing member 62 is formed in a long rectangular flat plate shape similarly to the electric wire fixing member 52 in the first embodiment, and four cable fixing members 620 are screwed to the rear surface as shown in FIGS. 12A and 12B. ing.

  The three first fixing portions 60 are configured to protrude obliquely upward from the upper end of the second fixing portion 61, and to move away from each other toward the front end (upper end). Further, the three first fixing portions 60 are formed in a substantially triangular prism shape. However, the three first fixing parts 60 have a space in which the lead wire and the signal wire can be inserted.

  A cylindrical female screw portion 600, a rectangular parallelepiped rib 601, and a rectangular electric wire insertion hole 602 are provided on a distal end surface (upper end surface) of the first fixing portion 60. The female screw portion 600 is formed on the inner peripheral surface of a cylindrical projection (boss) that protrudes upward from an outward location on the distal end surface of the first fixing portion 60. The rib 601 protrudes upward from an inward location on the distal end surface of the first fixing portion 60. The electric wire insertion hole 602 is provided at a position between the boss (female screw part 600) and the rib 601 on the distal end surface of the first fixing part 60.

  On the other hand, the instrument main body 1 is provided with three arm fixing portions 16 on the peripheral wall 11 instead of the arm mounting base. Each of the three arm fixing portions 16 has a boss 160 through which the bolt insertion hole 1600 passes, a communication hole 161, and a concave portion (not shown). The boss 160 is formed in a cylindrical shape, and is provided on the first step portion 12 on the inner peripheral surface of the peripheral wall 11 of the instrument body 1 (see FIG. 13). The bolt insertion hole 1600 is formed so as to penetrate the boss 160 and the peripheral wall 11 in the vertical direction. The communication holes 161 are formed directly below the boss 160 so as to penetrate the peripheral wall 11. The recess is provided on the outer peripheral surface of the peripheral wall 11 directly below the through hole 161.

  The first fixing portion 60 is positioned on the peripheral wall 11 by fitting the concave portion and the rib 601, and a bolt (not shown) inserted into the bolt insertion hole 1600 of the instrument main body 1 is screwed into the female screw portion 600. (See FIGS. 12A and 12B).

  In the lighting fixture XX, similarly to the lighting fixture X according to the first embodiment, since a gap is provided between the first mounting portion 3220 and the mounting plate 31, the light source (LED unit 30) and the power supply device 320 It is possible to suppress the heat conduction between them.

X, XX Lighting fixture SS gap 1 fixture main body 2 cover 3 lighting unit 4 globe 10 window hole 23 fixing screw 24 heat conductive member 30 LED unit 31 mounting plate 40 globe main body 41 outer flange portion 305 electric wire 310 first mounting surface 311 second Mounting surface 312 Through hole 320 Power supply device 322 Fixing member 3220 First mounting portion (mounting portion)
3221 fixing part 3222 connecting part

Claims (3)

An appliance body formed in a box shape having a first surface opened and having a window hole in a second surface opposed to the first surface, and a cover attached to the appliance body to close the first surface; It has translucency, comprising a glove attached to the appliance body so as to close the window hole, and a lighting unit housed in the appliance body,
The lighting unit includes one or a plurality of light sources, a power supply device that supplies power to the light sources to light the light sources, a mounting plate on which the light sources are mounted on a first mounting surface facing the window hole, and a thickness direction. A fixing member fixed to a second mounting surface of the mounting plate opposite to the first mounting surface;
The fixing member includes a mounting portion to which the power supply device is mounted, one or more fixing portions fixed to the second mounting surface of the mounting plate, and one or more fixing portions. and a one or more connecting portions for connecting the mounting part, by one or more of the connecting portion, and a gap is provided between the second mounting surface of the mounting plate and the mounting portion ,
The lighting device according to claim 1, wherein the power supply device faces the second mounting surface of the mounting plate with the mounting portion interposed therebetween .   The lighting unit has an electric wire serving as a power supply path from the power supply device to the one or more light sources, and the electric wire is inserted into a through hole passing through the mounting plate, and the power supply device and the one power source are connected to each other. The lighting fixture according to claim 1, wherein each of the plurality of light sources is electrically connected.   The lighting device according to claim 1, wherein the lighting unit includes a heat conductive member thermally connected to the power supply device, and the heat conductive member is in contact with the cover.

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