JP2017195082A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device which can stably support a lamp fitting without enlarging the device.SOLUTION: A lighting device includes: radiation units 20 which are provided with a radiation direction set to a downward direction; and a case body 11 integrally supporting the radiation units 20. The case body 11 includes a frame body 12 enclosing a periphery of the radiation units 20. A pair of side plates 13, 13 of the frame body 12 includes hook parts 14 on which projections 35, which are provided protruding on a pair of side surfaces 22A of the radiation unit 20, are inserted from below and can be hooked.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a lighting fixture.

  2. Description of the Related Art Conventionally, there has been known a lighting fixture configured by housing a plurality of unitized lamps in a housing so that the irradiation direction is downward (see, for example, Patent Document 1). In the lighting fixture of patent document 1, in order to support a lamp so that an irradiation direction may become downward, the lamp support part which supports each of several lamps is provided in the housing | casing.

JP 2012-104347 A

By the way, when configuring a lighting fixture in which a plurality of lamps having a high light output are housed in a plurality of housings so that the irradiation direction is downward, each lamp tends to be heavy, and the lamp support structure is provided with a lamp fall prevention structure. It is necessary to provide in. For this reason, there is a problem in that the structure of the housing becomes complicated and the size is increased.
This invention is made | formed in view of the situation mentioned above, and it aims at providing the lighting fixture which can support a lamp stably, without enlarging an appliance.

  In order to achieve the above-described object, the present invention includes, in a lighting fixture, an irradiation unit provided with an irradiation direction facing downward, and a case body that integrally supports the plurality of irradiation units, and the case body includes: A hook portion that includes a frame body that surrounds the periphery of the plurality of the irradiation units, and a protrusion portion that protrudes from a pair of side surfaces of the irradiation unit and is hooked on the pair of side plates of the frame body from below. It is characterized by having.

  Further, the present invention is the lighting apparatus, wherein the hook portion includes a notch portion formed by notching a lower side of the side plate of the frame body, and a hook support portion extending obliquely downward from an upper end of the notch portion. It is characterized by having.

  Moreover, this invention is the said lighting fixture, The said hook part is a hole which penetrates the side plate of the said frame, It is characterized by the above-mentioned.

  Further, the present invention provides the illumination apparatus, wherein the irradiation unit includes a housing that houses the light source module in a waterproof manner, a reflecting mirror that controls light distribution of the light source module, and heat dissipation that dissipates heat from the light source module. And a transmissive cover that covers an emission opening through which light from the light source module is emitted. The case body has a top surface that is open to the outside, and the heat radiating portion of the irradiation unit is exposed to the outside. It is a feature.

  Further, the present invention provides the lighting apparatus, wherein the projection portion of the irradiation unit is inserted from the notch portion, is slid along the hook portion, and is hooked and supported by the hook support portion. A screw hole for screwing and fixing the irradiation unit to the frame is provided in a pair of side plates of the frame.

  According to the present invention, it is possible to stably support the irradiation unit without increasing the size of the instrument with a simple configuration in which the projection of the irradiation unit is inserted into the hook portion of the frame body from below and hooked. it can.

It is a side view which shows the lighting fixture of embodiment of this invention. It is a perspective view which shows a lamp main body from upper direction. It is a disassembled perspective view which shows the structure of a lamp main body. It is sectional drawing which shows the structure of an irradiation unit. It is a side view which shows the structure of a frame. It is a partial expanded side view of the frame which shows the structure of a hook part.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side view of a lighting fixture 1 according to this embodiment. The luminaire 1 is a luminaire that can be used to illuminate a competition surface in an indoor or outdoor sports facility such as a tennis court. As shown in FIG. 1, the lighting fixture 1 includes a pole 5 erected on the installation surface, an arm 6 extending from the pole 5, and a lamp body 10 attached to the distal end portion 6 </ b> B of the arm 6. The arm 6 is provided at a predetermined angle (for example, substantially vertical) with respect to the pole 5. Further, the arm 6 may be configured to extend from a wall surface, for example, in addition to the configuration extending from the pole 5 erected on the installation surface. In the present embodiment, the vertical direction is defined by the vertical direction in the installation state of the lighting fixture 1.

The lamp body 10 is attached to the arm 6 with a variable fixed angle by a fixture 40 connected to the tip 6B of the arm 6. The lamp body 10 is configured in a substantially rectangular shape whose longitudinal direction extends in a direction along the direction in which the arm 6 extends from the pole 5.
FIG. 2 is a perspective view showing the lamp body 10 from above, and FIG. 3 is an exploded perspective view of the lamp body 10.
As shown in FIGS. 2 and 3, the lamp body 10 is configured by housing a plurality of irradiation units 20 in a case body 11 formed in a rectangular frame shape with a top surface 11 </ b> A and a bottom surface 11 </ b> B open to the outside. Has been. In the present embodiment, the lamp body 10 is configured by arranging two irradiation units 20 along the longitudinal direction of the case body 11. The case body 11 includes a frame body 12 formed in a frame shape surrounding the periphery of the plurality of irradiation units 20 along the inner periphery. The frame 12 is configured by bending a thin plate-like member into a rectangular frame shape. Although details will be described later, the plurality of irradiation units 20 are configured to be integrally fixed to the frame body 12.

  A fixing tool 40 for fixing the lamp body 10 to the arm 6 is connected to the frame body 12 on the side surface of one end in the longitudinal direction of the case body 11. Further, the connection box 8 may be provided on one end side in the longitudinal direction of the case body 11 using the internal space of the fixture 40. A power supply line (not shown) for supplying lighting power to a light source module 21 described later is connected to the connection box 8, and the lighting power is supplied to each light source module 21 through the connection box 8.

FIG. 4 is a cross-sectional view showing the configuration of the irradiation unit 20.
As shown in FIG. 4, the irradiation unit 20 includes a bottomed rectangular box-shaped casing 22 whose one surface is open, and a light source module 21 provided on the bottom surface of the casing 22. The light source module 21 includes an LED 21A as an example of a light emitting element as a light source, and the LED 21A is mounted on an LED substrate 21B. As a light source of the light source module 21, a chip-on-board (COB) type high-power LED in which LEDs are densely arranged on an LED substrate to form a planar light emitting unit may be used.

  The casing 22 is provided with a reflecting mirror 24 that controls the light distribution of the light source module 21. The casing 22 is provided with a shielding plate 25. The shielding plate 25 is provided between the bottom surface 23 of the housing 22 and the emission opening 26. The shielding plate 25 is formed with a hole of an appropriate size into which the reflecting mirror 24 is inserted. The shielding plate 25 is provided so that the structure inside the housing 22 is not visible from the outside through a transmissive cover unit 27 (transmissive cover) described later.

  On the back surface 23B side of the bottom surface 23 of the housing 22, a heat radiating portion 55 including a plurality of heat radiating fins 19 that radiates heat generated by the light source module 21 is provided. Further, a back guard 50 is attached to the housing 22 so as to surround the radiating fins 19 to protect the radiating fins 19 and prevent the fingers from coming into contact with the radiating fins 19 and the charging parts of the housing 22. The back guard 50 is provided with a plurality of slits 51 (see FIG. 2), and heat is radiated from the radiation fins 19 to the outside of the back guard 50 through the slits 51. As shown in FIG. 1, the irradiation unit 20 is configured to be exposed to the outside air from the opened top surface 11 </ b> A side of the case body 11 in a state where the heat dissipating fins 19 are surrounded by the back guard 50. That is, the lamp body 10 is configured such that the heat radiating portion 55 including the plurality of heat radiating fins 19 is exposed to the outside through the top surface 11A opened to the outside of the case body 11, and can efficiently radiate heat. Yes.

  As shown in FIG. 4, the housing 22 is configured such that an opening in front of the light source module 21 is an emission opening 26. The exit opening 26 is provided with a cover unit 27 that covers the exit opening 26. The cover unit 27 includes a cover 28 that is a translucent member and a cover presser 29 that is provided on the cover 28 in a frame shape. The cover 28 is configured to cover at least a range through which light from the light source module 21 and light from the light source module 21 whose light distribution is controlled by the reflecting mirror 24 are transmitted. A flange portion 36 that surrounds the periphery of the emission opening 26 in a frame shape is provided on the front surface of the housing 22. The lamp body 10 is configured so that the inside of the housing 22 is waterproofed when the cover holder 29 is pressed against the flange portion 36 and the cover unit 27 is attached to the emission opening 26. In addition, the structure which aims at waterproofing of the housing | casing 22 by inserting packing between the cover holding | suppressing 29 and the flange part 36 may be sufficient.

  The bottom surface 23 of the housing 22 is provided with a groove 32 into which the heat pipe 31 is fitted from the back surface 23B side. The grooves 32 extend along the longitudinal direction of the bottom surface 23, and a plurality of the grooves 32 are provided in the lateral direction of the bottom surface 23. In the present embodiment, three grooves 32 are provided on the back surface 23 </ b> B side of the bottom surface 23. A heat pipe 31 is fitted in the groove 32. In this way, since the plurality of heat pipes 31 are fitted along the longitudinal direction of the bottom surface 23, the heat generated by the light source module 21 is uniformly transferred to the longitudinal direction of the bottom surface 23 by the heat pipe 31.

  The heat dissipating fins 19 are plate-like fins erected substantially vertically on the bottom surface 23, and a plurality of the heat dissipating fins 19 are fixed to the back surface 23 </ b> B of the bottom surface 23. The radiation fins 19 are provided side by side in a direction substantially orthogonal to the heat pipe 31 at least in a range where the heat pipe 31 extends. The width of the heat dissipating fins 19 is as close as possible to the dimension in the short direction of the housing 22 so that the heat generated by the light source module 21 can be efficiently dissipated.

Next, a structure for fixing the irradiation unit 20 to the case body 11 will be described.
As shown in FIG. 3, the irradiation unit 20 includes projecting portions 35 that project from a pair of side surfaces 22 </ b> A at both ends in the longitudinal direction of the housing 22. The projecting portion 35 is provided so as to protrude outward from the flange portion 36 in a front view as viewed from the exit opening side toward the outside of the housing 22 substantially perpendicularly to the side surface 22A. The protrusion 35 is desirably provided above the position of the center of gravity of the irradiation unit 20 in the attached state of the irradiation unit 20.

FIG. 5 is a side view of the frame body 12, and FIG. 6 is a partially enlarged view of the frame body 12 showing the configuration of the hooking portion.
As shown in FIGS. 4, 5, and 6, the pair of side plates 13, 13 in the longitudinal direction of the frame body 12 is provided with a hooking portion 14. The hooking portion 14 is continuous with the cutout portion 14A formed by cutting the lower side 13A of the side plates 13 and 13 upward, and the hooking support portion 14C extending obliquely downward from the upper end 14B of the cutout portion 14A. And comprising. Thereby, the hook part 14 is formed in a substantially L shape or a bowl shape. The hook portion 14 is formed in the form of a hole that penetrates the side plate 13 of the frame body 12, and the through hole is a notch that further penetrates the lower side 13 </ b> A of the side plate 13.

  The hook portion 14 is provided at an appropriate position to which the irradiation unit 20 is attached, and the hook support portion 14C also functions as a positioning hole for positioning the irradiation unit 20 with respect to the frame body 12. In the configuration in which the lamp body 10 includes two irradiation units 20 as in the present embodiment, the two hook portions 14 are formed at appropriate positions on the side plate 13 of the frame body 12 along the longitudinal direction.

  When the irradiation unit 20 is attached to the frame body 12, the projections 35 protruding from the pair of side surfaces of the housing 22 with the irradiation direction facing downward are inserted into the cutout portion 14 </ b> A from below the frame body 12. . Then, the protrusion 35 inserted into the notch 14 </ b> A is slid along the hook 14 to the hook support 14 </ b> C. Thereby, the irradiation unit 20 is supported in a state of being hooked on the hook support portion 14 </ b> C of the hook portion 14. The side plate 13 of the frame body 12 is provided with a screw hole 15 for screwing the irradiation unit 20 positioned by being supported by the hook support portion 14C onto the frame body 12 above the hook support portion 14C. Yes. The irradiation unit 20 is provided with a screw hole 38 into which a screw (not shown) screwed into the screw hole 15 of the frame 12 is screwed. The irradiation unit 20 is fixed with screws by screws screwed into the screw holes 38 through the screw holes 15 of the frame body 12.

  As shown in FIG. 6, the hooking portion 14 is formed such that the hooking support portion 14C extends obliquely downward from the upper end 18B of the notch portion 14A. That is, the hook part 14 is configured such that the hook support part 14C is positioned below the upper end 18B of the notch part 14A, and the receiving edge 16 of the hook support part 14C on which the projection part 35 of the irradiation unit 20 is placed. However, it is comprised diagonally upward toward the notch part 14A. The inclination angle of the receiving side 16 with respect to the lower side 13A of the side plate 13 can be configured from about OO degrees to XX degrees. Further, the length L of the receiving side 16 is preferably formed to be longer than at least the diameter R of the protrusion 35.

According to these configurations, the irradiation unit 20 is supported in a state where the protrusion 35 inserted into the hook support portion 14 </ b> C is hooked by the receiving edge 16. Therefore, even when the screw screwed into the screw hole 38 of the frame 12 is loosened or detached, the irradiation unit 20 can be supported by the hook support portion 14C, and the hook portion 14 is dropped by the irradiation unit 20. It can be set as the structure which has a prevention function.
Although not shown, a predetermined gap is formed between the case body 11 and the side plate 13 of the frame body 12 to allow the projection 35 of the irradiation unit 20 hooked on the hook 14. Has been.

As described above, according to the present embodiment, the irradiation unit 20 provided with the irradiation direction facing downward and the case body 11 that integrally supports the plurality of irradiation units 20 are provided. The projection unit 35 is provided on the pair of side plates 13 and 13 of the frame body 12 so as to project from the pair of side surfaces 22A and is hooked from below. The hook 14 is provided.
According to this configuration, the lamp body 10 is enlarged with a simple configuration in which the projections of the irradiation unit 20 are inserted and hooked on the hooks 14 provided on the side plates 13 and 13 of the frame 12 from below. Therefore, the irradiation unit 20 can be supported stably.

  In addition, according to the present embodiment, the hooking portion 14 includes the notch portion 14A formed by notching the lower side 13A of the side plates 13 and 13 of the frame 12, and the hook support extending obliquely downward from the upper end 14B of the notch portion 14A. 14C. According to this configuration, the protrusion 35 of the irradiation unit 20 inserted from below through the notch 14 </ b> A is hooked on the hook support 14 </ b> C, so that the protrusion 35 is separated from the hook 14 by the weight of the irradiation unit 20. The configuration is such that the irradiation unit 20 is difficult to fall off, and the irradiation unit 20 is difficult to drop from the frame 12.

  Moreover, according to this embodiment, since the hook part 14 is a hole which penetrates the side plates 13 and 13 of the frame 12, the frame 12 has a simple configuration in which a thin plate is bent into a frame shape, and is stably projected. The part 35 can be hooked and supported on the hook part 14, and the irradiation unit 20 can be stably supported without increasing the size of the lamp body 10.

  Further, according to the present embodiment, the irradiation unit 20 includes the housing 22 that houses the light source module 21 in a waterproof manner, the reflecting mirror 24 that controls the light distribution of the light source module 21, and the heat dissipation that dissipates the heat of the light source module 21. Part 55 and a transmissive cover 27 covering the emission opening 26 from which light from the light source module 21 is emitted. The case body 11 has the top surface 11A open to the outside, and the heat radiation part 55 of the irradiation unit 20 is Exposed outside. According to this configuration, the irradiation unit 20 is waterproofed as a single unit, and since the heat radiating part 55 is exposed to the outside from the top surface of the opened case body, the lamp body 10 can be reduced in weight, and The light source module 21 can efficiently dissipate heat.

  Further, according to the present embodiment, the projection unit 35 of the irradiation unit 20 is inserted from the notch portion 14A and slid along the hook portion 14, and the irradiation unit 20 that is hooked and supported by the hook support portion 14C is supported. The screw holes 15 that are fixed to the frame body 12 by screws are provided in the pair of side plates 13 of the frame body 12. Accordingly, the irradiation unit 20 can be hooked and supported on the hook support portion 14C, and can be screwed and fixed to the frame body 12, and the irradiation unit 20 can be stably supported without increasing the size of the lamp body 10. be able to. Further, the irradiation unit 20 can be temporarily fixed by being hooked on the hook support portion 14 </ b> C, and when the irradiation unit 20 is screwed and fixed to the frame body 12, the operation can be performed safely.

  The above-described embodiment is merely an aspect of the present invention, and can be arbitrarily modified and applied without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the lamp body 10 is configured to include the rectangular frame-type case body 11, but the shape of the lamp body 10 is not limited to a rectangle, and may be, for example, a circular shape or a polygonal shape. good.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 10 Lamp main body 11 Case body 12 Frame body 13 Side plate 14 Hook part 14A Notch part 14C Hook support part 20 Irradiation unit 22A Side surface 35 Projection part

Claims (5)

An irradiation unit provided with the irradiation direction facing downward;
A case body that integrally supports a plurality of the irradiation units,
The case body includes a frame body that surrounds a plurality of the irradiation units, and protrusions projecting from a pair of side surfaces of the irradiation unit are inserted into the pair of side plates of the frame body from below and hooked. A lighting apparatus comprising a hooking portion.   The said hook part was provided with the notch part formed by notching the lower side of the side plate of the said frame, and the hook support part extended diagonally downward from the upper end of the said notch part, It is characterized by the above-mentioned. The luminaire described.   The lighting apparatus according to claim 1, wherein the hooking portion is a hole that penetrates a side plate of the frame body. The irradiation unit includes a housing that houses the light source module in a waterproof manner, a reflecting mirror that controls light distribution of the light source module, a heat radiating unit that radiates heat from the light source module, and light emitted from the light source module. A transparent cover that covers the exit opening to be
The lighting device according to any one of claims 1 to 3, wherein the case body has a top surface opened to the outside and a heat radiation portion of the irradiation unit exposed to the outside. The projection unit of the irradiation unit is inserted from the notch and slid along the hooking part, and the irradiation unit hooked and supported by the hooking support part is fixed to the frame with screws. The lighting fixture according to claim 1, wherein screw holes to be formed are provided in a pair of side plates of the frame body.

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