JP2018101479A - Lighting device and heat dissipation member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device capable of preventing an object from running on the upper part of a heat radiation plate: and to provide a heat radiation member.SOLUTION: A lighting device 1 has a heat radiation part 120 fixed to one side of a lighting fixture body 110. The heat radiation part 120 has a heat radiation plate group 122 composed of a plurality of heat radiation plates 125 projecting in a direction apart from the lighting fixture body 110. When a virtual surface C approximating an area R where end surfaces 127 of the plurality of heat radiation plates 125 are located, is defined as a surface 126 of the heat radiation plate group 122, the surface 126 of the heat radiation plate group 122 has a tapered part 128 tapered upward, in a side view in a state where the heat radiation plate group 122 is located on the upper side of the lighting fixture body 110. And the tapered part 128 is formed so that a starting point 128a corresponds to a point P1 of one widthwise end and a point P2 of another widthwise end each of the heat radiation plate group 122, and a terminal point 128b corresponds to a summit P3 formed at an uppermost part.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a lighting device and a heat dissipation member.

  2. Description of the Related Art Conventionally, as a lighting device, a lighting device that includes a lighting fixture body having a light source and a plurality of heat radiating plates protruding in a direction halfway from one side of the lighting fixture body is known (see, for example, Patent Document 1). ).

  Patent Document 1 discloses a so-called high ceiling lighting device that is installed on a ceiling of a building with a high ceiling such as a gymnasium or a hall and illuminates an illumination space from above. Such a high ceiling lighting device is generally installed on the ceiling of a gymnasium, a hall, or the like in a state where a heat radiating plate is exposed to an illumination space irradiated with light from a light source.

JP 2014-026804 A

  However, in the illuminating device disclosed in Patent Document 1, when a plurality of heat radiating plates are fixed to the luminaire main body, a flat portion is formed by the upper ends of the plurality of heat radiating plates. For this reason, for example, when a lighting device is installed on the ceiling of a gymnasium, an object such as a badminton shuttle may get on the heat sink.

  As described above, in the conventional technique, there is a possibility that an object such as a badminton shuttle may get on the heat sink.

  Then, an object of this invention is to obtain the illuminating device and heat radiating member which can suppress that an object mounts on the upper part of a heat sink.

  The illuminating device according to the present invention includes a luminaire main body having a light source, and a heat radiating portion fixed to one side of the luminaire main body to dissipate heat generated by the light source, and the heat radiating portion is the light source. It is fixed to the to-be-fixed part in the state exposed to the illumination space irradiated with light.

  Moreover, the said heat radiating part has a heat radiating plate group comprised with the several heat radiating plate protruded so that it might extend in the direction away from the said lighting fixture main body.

  Further, when a virtual surface approximating a region where the end surfaces of the plurality of heat sinks are located is a surface of the heat sink group, the side surface in a state in which the heat sink group is arranged on the upper side of the lighting fixture body. As viewed, the surface of the heat radiating plate group has a tapered portion that tapers upward.

  And the said taper part is a point of the width direction one end of the said heat sink group, and the point of the width direction other end, and an end point is the vertex formed in the uppermost part.

  Moreover, the heat radiating member concerning this invention is attached to the to-be-attached member which generate | occur | produces heat, and radiates the heat which arose in the said to-be-attached member.

  The heat radiating member includes a base part that is detachably attached to one side of the attached member, and a heat radiating plate group that includes a plurality of heat radiating plates protruding so as to extend away from the base part. It is equipped with.

  Further, when a virtual surface approximating a region where the end surfaces of the plurality of heat sinks are approximated is a surface of the heat sink group, a side view in a state where the heat sink group is arranged on the upper side of the base portion. And the surface of the said heat sink group has a taper part which tapers upwards.

  And the said taper part is a point of the width direction one end of the said heat sink group, and the point of the width direction other end, and an end point is the vertex formed in the uppermost part.

  ADVANTAGE OF THE INVENTION According to this invention, the illuminating device and heat dissipation member which can suppress that an object runs on the upper part of a heat sink can be obtained.

It is the perspective view which looked at the illuminating device concerning one Embodiment of this invention from the 1st direction. It is the perspective view which looked at the illuminating device concerning one Embodiment of this invention from the 2nd direction. It is the disassembled perspective view which looked at the lighting fixture concerning one Embodiment of this invention from the 1st direction. It is the disassembled perspective view which looked at the lighting fixture concerning one Embodiment of this invention from the 2nd direction. It is a figure which shows the lighting fixture concerning one Embodiment of this invention, Comprising: (a) is the perspective view seen from the 2nd direction, (b) is the side view seen from the right side. It is a figure which shows the cover concerning one Embodiment of this invention, Comprising: (a) is the side view seen from the front side, (b) is the side view seen from the right side, (c) is a bottom view. It is explanatory drawing explaining the state which the shuttle of badminton rides on a heat sink when the lighting fixture concerning a comparative example is used. It is explanatory drawing explaining the state in which the shuttle of badminton falls from a heat sink, when the lighting fixture concerning one Embodiment of this invention is used. It is a figure explaining the modification of the attachment or detachment method to the lighting fixture main body of a heat radiating member. It is a figure explaining the other modification of the attachment or detachment method to the lighting fixture main body of a heat radiating member. It is a figure which shows the lighting fixture concerning the 1st modification of one Embodiment of this invention, Comprising: (a) is the perspective view seen from the 2nd direction, (b) is the side view seen from the front side. It is a figure which shows the lighting fixture concerning the 2nd modification of one Embodiment of this invention, Comprising: (a) is the perspective view seen from the 2nd direction, (b) is the side view seen from the front side.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, below, the illuminating device integrated so that two illuminating devices may be arranged in parallel is illustrated as an illuminating device. Further, as a lighting device, a so-called high ceiling lighting device which is installed on a ceiling of a building with a high ceiling such as a gymnasium or a hall and illuminates the lighting space from above is exemplified.

  And the direction (direction where the heat sink of a lighting fixture is extended) is prescribed | regulated as the front-back direction, and the direction where the heat sink of a lighting fixture is arranged in parallel is prescribed as the width direction. To explain.

  Further, the upper side in the state where the lighting device is attached to the ceiling is defined as the upper side in the vertical direction, and the lower side is defined as the lower side in the vertical direction.

  As described above, the lighting device 1 according to the present embodiment includes the two lighting fixtures 10 and 10. And the illuminating device 1 is formed by integrating the two lighting fixtures 10 and 10 so that it may be juxtaposed in the front-back direction. Thus, in this embodiment, the illuminating device 1 is an illuminating device module in which two luminaires 10 are modularized. In addition, in this embodiment, the thing which modularized the two lighting fixtures 10 and 10 is illustrated, However, It is also possible to make the lighting device 1 the lighting device module which modularized the three or more lighting fixtures. It is. Moreover, the illuminating device 1 is not restricted to the modularized illuminating device module, You may make it have only one lighting fixture 10. FIG.

  Such an illuminating device 1 can be fixed to a fixed portion 60 such as a high ceiling such as a gymnasium or a hall (see FIG. 1). In addition, in FIG. 1, the figure which modeled the to-be-fixed part is shown. The fixed portion may be a ceiling wall or a side wall, or may be a member fixed to the ceiling wall or the side wall (for example, a bolt that is suspended and fixed from the ceiling).

  And in the state which fixed the illuminating device 1 to the to-be-fixed part 60, the lighting fixtures 10 and 10 are made to illuminate the space (illumination space) 61 in a gymnasium or a hall from upper direction. That is, the main optical axis direction of the lighting fixtures 10 and 10 is directed downward with the lighting device 1 fixed to the fixed portion 60.

  As illustrated in FIGS. 1 and 2, the lighting device 1 includes two lighting fixtures 10 and 10 and a pair of connecting members 20 and 20 that connect the two lighting fixtures 10 and 10. The lighting device 1 includes an arm 30 fixed to the fixed portion 60 and a pair of arm attachment members 40 for attaching the arm 30 to the pair of connecting members 20 and 20. The lighting device 1 further includes a power supply unit 50 that is electrically connected to the lighting fixture 10 and supplies power to the lighting fixture 10. In the present embodiment, the lighting fixtures 10 and 10 are fixed to the fixed portion 60 using the pair of connecting members 20, the arms 30, and the pair of arm mounting members 40. The lighting device 1 does not have to include all of these members. That is, the illuminating device 1 should just be the structure which can fix the lighting fixtures 10 and 10 to the to-be-fixed part 60. FIG.

  Each of the connecting members 20, 20 can be formed of, for example, a strip-shaped metal plate (for example, a stainless steel plate), and each connecting member 20 is provided on both sides of the first connecting portion 210 and the first connecting portion 210. And two second connecting portions 220 and 220 (see FIGS. 1 and 2). In the present embodiment, each connecting member 20 has a shape in which the first connecting portion 210 protrudes in the thickness direction (left-right direction) with respect to the second connecting portions 220 on both sides. The first connecting portion 210 is provided with three screw insertion holes, and the second connecting portions 220 and 220 are each provided with two screw insertion holes.

  Each of the connecting members 20 and 20 has a screw hole 124b provided in an edge portion 124 of the heat radiating member 120, which will be described later, with a screw 230 passed through the screw insertion holes of the first connecting portion 210 and the second connecting portion 220 and 220, respectively. Are attached to the two luminaires 10 and 10 (see FIGS. 1 and 2).

  As shown in FIGS. 1 and 2, the arm 30 includes a fixed plate 310 and a pair of support plates 320 and 320 that are provided so as to protrude downward from both ends of the fixed plate 310 in the left-right direction. The fixed plate 310 and the pair of support plates 320, 320 are integrally formed. Such an arm 30 can be formed, for example, by bending a single metal plate.

  In the present embodiment, a circular bolt insertion hole 311 is provided at the right end of the fixing plate 310, and an oval bolt insertion hole 312 is provided at the left end of the fixing plate 310. Furthermore, a circular screw insertion hole and an arcuate screw insertion hole 321 are arranged in the vertical direction at the front end portion (lower end portion) of each support plate 320, 320.

  Then, the screws 330 respectively passed through the two screw insertion holes of the respective support plates 320 and 320 are respectively screwed into two screw holes provided in the bearing portion 430 described later, thereby being connected by the connecting member 20. The two luminaires 10 and 10 are rotatably supported by the arm 30. In this embodiment, the screw insertion hole 321 is formed in an arc shape, and the angle of the arm 30 can be changed by loosening the screw 330.

  As shown in FIGS. 1 and 2, the arm attachment member 40 includes a fixed portion 410, a pair of attachment portions 420 and 420, and a bearing portion 430. The fixing portion 410, the pair of attachment portions 420 and 420, and the bearing portion 430 can be integrally formed using, for example, aluminum die casting.

  In the present embodiment, the fixing portion 410 is formed in a square hook shape whose lower side is open, and the pair of attachment portions 420 and 420 are formed in a truncated cone shape that is long in the vertical direction. And the screw hole (female screw) is formed in the front-end | tip part (upper end part) of each attaching part 420,420. The bearing portion 430 is formed in a cylindrical shape, and is disposed between the pair of attachment portions 420 and 420 in a state of being connected to the attachment portions 420 and 420 and the fixing portion 410. The bearing portion 430 is provided with two screw holes arranged in the vertical direction.

  As shown in FIGS. 1 and 2, the power supply unit 50 includes a power supply block and a case 510 that houses the power supply block.

  The power supply block has a power conversion circuit that converts power supplied from the outside (for example, AC power supplied from a commercial power supply) into power (DC power) required for the two lighting fixtures 10 and 10. is there. This power conversion circuit can be composed of, for example, a full-wave rectifier, a power factor correction circuit (step-up chopper circuit), a DC / DC converter (step-down chopper circuit), or the like. Moreover, such a power supply block can be configured by mounting a large number of circuit components constituting the power conversion circuit on the surface of the printed wiring board.

  In addition, an output cable having a plug connector at the tip is electrically connected to the printed wiring board. Then, this output cable is pulled out of the case 510 and a plug connector is connected to the receptacle connector of each of the lighting fixtures 10 and 10, so that the power supply unit 50 (power supply block) and each of the lighting fixtures 10 and 10 are electrically connected. Connected.

  As shown in FIGS. 1 and 2, the case 510 includes a bottom plate 520, a top plate 530, and four side plates 540. The bottom plate 520 can be formed using, for example, a metal plate such as a stainless steel plate, and is formed in a rectangular flat plate shape that is long in the front-rear direction. In the present embodiment, the peripheral edge portion of the bottom plate 520 is bent upward, whereby the strength of the bottom plate 520 is improved. In addition, a plurality of through holes 521 arranged in the vertical and horizontal directions are provided in the central portion of the bottom plate 520.

  The top plate 530 can also be formed using a metal plate such as a stainless steel plate, and is formed in a rectangular flat plate shape that is long in the front-rear direction. A rectangular flat plate-like side plate 540 is formed to hang downward at the front edge of the top plate 530. The side plate 540 arranged on the front side has a plurality of through holes 541 arranged side by side in the vertical and horizontal directions. Is provided.

  Further, a rectangular flat plate-shaped side plate 540 is formed to hang downward at the rear end edge of the top plate 530. The side plate 540 disposed on the rear side is similar to the side plate 540 disposed on the front side. A plurality of through-holes arranged side by side in the vertical and horizontal directions are provided. Further, the left and right edges of the top plate 530 are also formed so that the side plates 540 and 540 hang downward. The side plates 540 and 540 arranged at the left end edge and the right end edge are formed in a rectangular flat plate shape having the same dimensions.

  Next, the specific structure of the lighting fixture 10 is demonstrated based on FIGS. In addition, below, a specific structure is demonstrated using the lighting fixture 10 arrange | positioned at the front side of FIG.

  As shown in FIGS. 3 and 4, the lighting fixture 10 includes a lighting fixture main body 110 and a heat dissipation member (heat dissipation portion) 120 fixed to the upper side (one side) of the lighting fixture main body 110. The instrument body 110 has a light source 130.

  Furthermore, the luminaire main body 110 includes a lens block 140 that distributes the light emitted from the light source 130, a cover 160 that is fixed to the heat radiating member 120 while covering the light source 130 and the lens block 140, and a heat radiating member. And a seal member 150 that seals between the cover 120 and the cover 160. Note that the luminaire main body 110 does not have to include all of these members, and the luminaire main body 110 only needs to include at least the light source 130.

  As shown in FIGS. 3 and 4, the light source 130 includes a mounting substrate 131 and a plurality (22 in FIG. 3) of LEDs (light emitting elements) 132 mounted on the mounting substrate 131. Thus, in this embodiment, the LED module in which the plurality of LEDs 132 are mounted on the mounting substrate 131 is used as the light source 130. In the present embodiment, these LEDs 132 are mounted on the lower surface of the mounting substrate 131 so as to be arranged vertically and horizontally, thereby forming an LED module as the light source 130.

  The mounting substrate 131 can be formed of, for example, a rectangular flat aluminum substrate, and each LED 132 can be a package-type white LED that is well known in the art.

  In addition, a receptacle connector that is electrically connected to each LED 132 via a wiring conductor formed on the lower surface of the mounting substrate 131 is mounted on the lower surface of the mounting substrate 131. Furthermore, circular screw insertion holes 131a are provided at the four corners of the mounting substrate 131, respectively.

  As shown in FIGS. 3 and 4, the lens block 140 includes a block main body 141 and a plurality of lenses 142. The lens block 140 can be formed of a synthetic resin material having translucency such as acrylic resin. In the present embodiment, the lens block 140 is formed by integrally forming the block main body 141 and the plurality of lenses 142.

  In the present embodiment, the block main body 141 has a rectangular flat plate-like bottom plate 141a and four side plates 141b that protrude upward from the periphery of the bottom plate 141a. Further, the plurality of lenses 142 are integrally formed on the upper surface of the bottom plate 141a so as to be arranged vertically and horizontally. These lenses 142 are provided so as to correspond one-to-one with the LEDs 132 of the light source 130.

  A fixed piece 141c is integrally formed on each of the side plates 141b and 141b and the left side plate 141b in the front-rear direction. These fixing pieces 141c protrude upward from the upper edge at the central portion in the longitudinal direction of each side plate 141b. Further, these fixed pieces 141c are substantially C-shaped when viewed from above and below.

  The seal member 150 can be formed in a rectangular frame shape using, for example, silicone rubber. At each of the four corners of the seal member 150, projections 151 having a shape similar to the outer shape of the bolt are formed so as to protrude downward. Each of the four sides of the seal member 150 is provided with three circular screw insertion holes 152 at intervals. Further, two circular through-holes 153 are provided on each of the two sides in the left-right direction of the seal member 150 with an interval.

  As shown in FIG. 6, the cover 160 includes a cover main body 161 and an outer casing 162 that extends outward from the upper end of the cover main body 161. The cover body 161 and the outer casing 162 can be integrally formed of a synthetic resin material having translucency such as polycarbonate resin.

  The cover main body 161 has a substantially rectangular flat plate-like bottom wall portion 163 and four side wall portions 164 protruding upward from the periphery of the bottom wall portion 163. The bottom wall portion 163 and the four side wall portions 164 are formed. And is formed in a substantially rectangular box shape opening upward. And the protrusion 163a which protrudes below is provided in the four corners of the bottom wall part 163, respectively. Moreover, in this embodiment, the bottom wall part 163 and each side wall part 164 are integrally connected via the connection part 165 which curves in an arc shape.

  The outer casing 162 is formed to have a substantially rectangular frame shape when viewed from above and below, and is formed to project outward from the opening edge of the cover body 161. In addition, circular fitting holes 162b are provided at the four corners of the outer casing 162, respectively. Furthermore, three circular screw insertion holes 162a are provided on each of the four sides of the outer casing 162 at intervals. In addition, two protrusions 162 c are provided at intervals on the upper surfaces of the two sides in the left-right direction of the outer casing 162.

  The cover main body 161 is preferably formed with a plurality of textures for diffusing light emitted from the light source 130. By doing so, it becomes unnecessary to use a diffusion panel, and it is possible to make it difficult to reduce the irradiation efficiency to the illumination space 61 while reducing the glare. In addition, it is also possible to set it as the lighting fixture main body 110 using a diffusion panel.

  Further, when placing the cover 160 on a work table or the like, the bottom wall 163 is often placed with the bottom wall 163 down. However, as in the present embodiment, the protrusion 163a is formed on the lower surface of the bottom wall 163 of the cover 160. If there is provided, there is an advantage that the lower surface of the bottom wall portion 163 is hardly damaged.

  The heat radiating member 120 can be formed of, for example, a material having excellent thermal conductivity such as an aluminum alloy, and is thermally connected to the light source 130 to radiate heat generated by the light source 130 to the outside. That is, in this embodiment, the luminaire main body 110 having the light source 130 is a mounted member that generates heat, and the heat radiating member 120 radiates heat generated by the mounted member to the outside.

  As shown in FIGS. 3 and 4, the heat dissipating member 120 is provided on the upper side (one side) of the luminaire main body 110, and is provided on the upper surface of the base portion 121, and is separated from the base portion 121. And a plurality of heat dissipating plates 125 protruding in the direction (upward).

  The base 121 includes a substantially rectangular plate-like main body 123 on which a plurality of heat dissipation plates 125 project, and a pair of edge portions 124 and 124 provided on both sides of the main body 123 in the left-right direction. ing.

  In addition, a large number of screw holes (female screws) 123a are provided on the lower surface of the main body portion 123 (base portion 121). The light source 130 is fixed to the heat radiating member 120 by screwing the screw 133 into the screw hole (female screw) 123a in a state of being inserted into the screw insertion hole 131a formed in the mounting substrate 131. .

  The pair of edge portions 124 and 124 has a rectangular parallelepiped shape with the front-rear direction as a longitudinal direction, and is formed integrally with the left end edge and the right end edge of the main body portion 123. The edge portion 124 is formed so that the thickness (height in the vertical direction) is larger than the thickness of the main body portion 123.

  Further, one screw hole (female screw) 124a is provided on each end face in the front-rear direction of each edge 124, 124.

  A plurality of screw holes (female screws) 124b are provided at intervals along the front-rear direction on the outer side surfaces of the respective edge portions 124, 124 in the left-right direction. Furthermore, two screw holes (female screws) 124c are provided on the upper surfaces of the edge portions 124 and 124 so as to be aligned in the front-rear direction.

  Each heat dissipation plate 125 has a substantially plate shape and is integrally formed on the upper surface of the main body 123. In the present embodiment, the heat radiating plates 125 are arranged on the upper surface of the main body portion 123 so as to be lined up in the left-right direction with the front-rear direction being the longitudinal direction. This interval (the maximum interval when there are a plurality of different width intervals) is made narrower than the width of the ball portion 71 provided in the badminton shuttle 70 described later. In addition, the gap (interval) between the heat sinks 125 adjacent to each other can be set as appropriate according to the width of the object to be prevented from climbing.

  Further, in the present embodiment, an example is shown in which the intervals between the adjacent radiator plates 125 are partially different, but it is also possible to arrange all the radiator plates 125 at equal intervals. .

  In this way, by arranging the plurality of heat dissipation plates 125 in a state in which an interval is formed at least partially (in the present embodiment, the state where the adjacent heat dissipation plates 125 are completely separated from each other). The heat radiating plate group 122 is formed on the upper surface of the main body 123.

  Here, in the present embodiment, the heat radiating plate group 122 is formed by using a plurality of substantially trapezoidal heat radiating plates 125 having two angles at right angles when viewed from the thickness direction (left and right direction in FIG. 1). Forming.

  Specifically, a plurality of heat sinks 125 having the same size and the same shape (a plurality of substantially congruent heat sinks 125) are arranged in the left-right direction at intervals. The heat radiating plate group 122 is formed by being integrally formed on the upper surface of the main body 123.

  At this time, each heat sink 125 is in a state in which two right-angled parts are on the lower side (main body part 123 side) and in a state in which the short side is positioned on the front side (one side) in the front-rear direction. The main body 123 protrudes from the upper surface. Note that the long side of the substantially trapezoidal heat dissipation plate 125 is located on the rear side (the other end side) in the front-rear direction, and the inclination directions of the hypotenuses all face the same direction (forward and downward).

  Furthermore, in this embodiment, each heat sink 125 is formed to extend from the front end in the front-rear direction on the upper surface of the main body portion 123 to the rear end. That is, the length in the front-rear direction of each heat sink 125 and the length in the front-rear direction of the main body 123 are set to be substantially the same length. By doing so, the heat generated by the light source 130 can be radiated to the outside more efficiently.

  As described above, in the present embodiment, the heat radiating plate group 122 is present from one end (front end) to the other end (rear end) in the width direction (front-rear direction) of the main body 123 as viewed from the left-right direction. Is formed.

  Therefore, in the present embodiment, the heat radiating plate group 122 approximated by a substantially trapezoidal quadrangular prism is formed on substantially the entire top surface of the main body 123. In addition, the heat sink plate 122 approximated by this quadrangular prism is formed such that an inclined surface that is inclined from one end (front end) to the other end (rear end) in the width direction (front-rear direction) of the main body 123 is formed at the upper end. In this state, it is disposed on the upper surface of the main body 123.

  In addition, the heat sink group 122 approximated by a substantially trapezoidal quadrangular prism can represent the surface 126 by a virtual plane C that approximates the region R where the end faces 127 of the plurality of heat sinks 125 are located.

  Specifically, the front side surface 126a of the heat radiating plate group 122 can be represented by a virtual front surface C1 that approximates the front region R1 where the front end surfaces 127a of the plurality of heat radiating plates 125 are located. Further, the upper surface 126b of the heat radiating plate group 122 can be represented by a virtual upper surface C2 that approximates the upper region R2 where the upper end surfaces 127b of the plurality of heat radiating plates 125 are located. The rear side surface 126c of the heat radiating plate group 122 can be represented by a virtual rear surface C3 that approximates the rear side region R3 where the rear end surfaces 127c of the plurality of heat radiating plates 125 are located.

  Thus, when the surface 126 of the heat sink group 122 is represented by the virtual plane C, in this embodiment, when the lighting device 10 is viewed from a certain direction, the surface 126 of the heat sink plate 122 is separated from the lighting device body 110. A taper portion 128 that tapers in a direction away from the taper can be provided.

  In the present embodiment, the heat sink plate 122 has the surface 126 facing upward when the lighting fixture 10 in a state where the heat sink plate 122 is arranged on the upper side of the lighting fixture main body 110 is viewed from the left and right directions. The tapered portion 128 is formed to have a taper.

  At this time, in the taper portion 128, the start point 128a becomes the point P1 at the front end (one end in the width direction) and the point P2 at the rear end (the other end in the width direction) of the heat radiating plate group 122, and the end point 128b is the vertex P3 formed at the top. It has become.

  Furthermore, in the present embodiment, the tapered portion 128 includes a straight line segment L1 connecting the point P1 at the front end (one end in the width direction) and the vertex P3, and the point P2 and the vertex P3 at the rear end (the other end in the width direction). And a straight line segment L2 connecting the two.

  As shown in FIG. 5 (b), such a tapered portion 128 has a height of the heat radiating plate 125 (an amount of protrusion from the upper surface of the main body portion 123) from the front end in the front-rear direction (one end in the width direction) in the front-rear direction. It can be formed by gradually increasing the height toward the rear end (the other end in the width direction).

  Thus, in this embodiment, when the lighting fixture 10 is set to the state shown in FIG. 5B, the heat dissipation plate group 122 includes the point P1 at the front end (one end in the width direction) and the rear end (the other end in the width direction). The point P2 is tapered from the point P2 toward the vertex P3. In other words, when the luminaire 10 is in the state shown in FIG. 5B, the vertex P <b> 3 is the uppermost position on the surface 126 of the heat radiating plate group 122, and from this vertex P <b> 3 to almost both ends in the width direction of the main body 123. A taper portion 128 that expands so as to expand is formed.

  And in this embodiment, when the lighting fixture 10 is made into the state shown in FIG.5 (b), the taper part 128 and the width direction front end (one end of the width direction) of the main-body part 123 are set to the heat sink plate group 122. One triangle formed by a straight line connecting the point P1 and the point P2 at the rear end (the other end in the width direction) is formed.

  The lighting fixture 10 having such a shape can be assembled, for example, by the following procedure. In addition, the procedure shown below is an example and the assembly of the lighting fixture 10 can be performed by procedures other than the following procedure.

  First, after the light source 130 is placed on the lower surface of the base part 121 of the heat dissipation member 120, the screw 133 passed through the screw insertion hole 131 a is screwed into the screw hole 123 a of the base part 121. In this way, the light source 130 is fixed to the heat radiating member 120.

  Next, in a state where the lens block 140 is covered with the light source 130, screws passed through the grooves of the respective fixing pieces 141 c of the lens block 140 are screwed into the screw holes 123 a of the base portion 121. Thus, the lens block 140 is fixed to the heat radiating member 120. At this time, the lens block 140 is fixed to the heat dissipation member 120 in a state where each lens 142 is disposed below the corresponding LED 132.

  Next, the four protrusions 151 of the seal member 150 are respectively fitted into the fitting holes 162 b provided at the four corners of the outer casing 162 of the cover 160. In this way, the seal member 150 is attached to the cover 160. At this time, the protrusion 162 c protruding upward from the upper surface of the outer casing 162 is inserted into the through hole 153 of the seal member 150.

  Thereafter, with the cover 160 to which the seal member 150 is attached being put on the lens block 140, the screw 166 passed through the screw insertion hole 162 a of the outer collar 162 is screwed into the screw hole 123 a of the base portion 121. Thus, the cover 160 is fixed to the heat dissipation member 120.

  By doing so, the lighting fixture 10 is assembled (see FIG. 5).

  In the above assembling procedure, each member of the luminaire main body 110 (the cover 160 with the light source 130, the lens block 140, and the seal member 150 attached) is sequentially attached to the heat radiating member 120, so that the heat radiating member 120 and the luminaire main body. An example in which 110 is fixed is illustrated. That is, the lighting fixture body 110 is assembled for the first time by attaching each member (the cover 160 to which the light source 130, the lens block 140, and the seal member 150 are attached) constituting the lighting fixture body 110 to the lower side of the heat dissipation member 120. This is an example.

  However, the assembling method of the lighting fixture 10 is not limited to such a method.

  For example, as shown in FIGS. 9 and 10, it is possible to assemble the lighting fixture 10 by attaching a heat dissipation member 120 to the lighting fixture main body 110 assembled in advance.

  9 and 10 illustrate the luminaire 10 in which the heat dissipating member 120 can be detachably attached to the upper side (one side) of the luminaire main body 110 assembled in advance.

  That is, the heat radiating member 120 shown in FIGS. 9 and 10 includes a base 121 attached to the upper side (one side) of the luminaire main body 110 and a heat radiating plate group 122 projecting from the base 121. . And the base part 121 is attached to the upper side (one side) of the lighting fixture main body 110 so that attachment or detachment is possible.

  Here, in the luminaire 10 shown in FIG. 9, the heat radiating member 120 is attached to and detached from the luminaire main body 110 by the slide mechanism 80.

  Specifically, the luminaire main body 110 assembled in advance has a base portion 170 on the luminaire main body side, and each member (the light source 130, the lens block 140, and the seal member 150 is attached to the base portion 170. The luminaire main body 110 is assembled by attaching the cover 160). In addition, the assembly method of the lighting fixture 10 can be performed by the method according to the assembly method of the lighting fixture 10 mentioned above, for example.

  And as shown in FIG. 9, the slide groove | channel 171 is formed in the left-right direction both ends of the base part 170. As shown in FIG. In addition, a slide protrusion 124d that is inserted into the slide groove 171 and slides in the front-rear direction while being guided by the slide groove 171 is formed on the base 121 of the heat radiating member 120 (the front end side of the edge 124). .

  9, the slide mechanism 80 includes the slide groove 171 and the slide protrusion 124d, and the slide mechanism 80 allows the heat radiating member 120 to be attached to and detached from the luminaire main body 110. I am doing so. In the luminaire 10 shown in FIG. 9, the screw hole 121 a formed in the base portion 121 of the heat radiating member 120 is connected to the screw hole 172 formed in the base portion 170 on the luminaire main body side. By fixing the screw 121b to the hole 121a and the screw hole 172, the heat radiating member 120 is fixed to the luminaire main body 110. In addition, the position and number of screw holes can be set variously. Further, the fixing of the heat radiating member 120 to the luminaire main body 110 is not limited to that performed using the screws 121b.

  On the other hand, in the luminaire 10 shown in FIG. 10, the heat radiating member 120 is attached to and detached from the luminaire main body 110 by the fitting mechanism 90.

  Specifically, similarly to the luminaire 10 shown in FIG. 9, the luminaire main body 110 assembled in advance has a base portion 170 on the luminaire main body side, and each member (light source 130, The luminaire main body 110 is assembled by attaching the lens block 140 and the cover 160 to which the seal member 150 is attached. The assembling method of the lighting fixture 10 shown in FIG. 10 can also be performed by a method according to the assembling method of the lighting fixture 10 described above, for example.

  And as shown in FIG. 10, the engagement nail | claw 173 is provided in the four corners of the base part 170 so that it may protrude upwards. In addition, an engagement piece 124e that engages with the engagement claw 173 is formed on the base portion 121 (both ends in the front-rear direction of each edge portion 124) of the heat dissipation member 120.

  10, the fitting mechanism 90 has the engaging claw 173 and the engaging piece 124e, and the fitting mechanism 90 allows the heat radiating member 120 to be attached to and detached from the lighting fixture main body 110. It is supposed to be. In addition, in the lighting fixture 10 shown in FIG. 10, the attachment / detachment of the heat radiating member 120 to the lighting fixture main body 110 is performed by moving the heat radiating member 120 relative to the lighting fixture main body 110 in the vertical direction.

  Further, in the lighting fixture 10 shown in FIG. 10, a positioning step 124f is formed in the vicinity of the engagement piece 124e of each edge portion 124, and when the heat dissipation member 120 is fitted into the lighting fixture body 110, The heat radiating member 120 is also fixed to the luminaire main body 110. Further, the fixing of the heat radiating member 120 to the luminaire main body 110 is not limited to that performed by the fitting mechanism 90 and the stepped portion 124f.

  Moreover, the illuminating device 1 using the above-mentioned lighting fixture 10 can be assembled in the following procedure, for example. In addition, the procedure shown below is also an example, and the assembly of the lighting device 1 can be performed by a procedure other than the following procedure.

  First, two lighting fixtures 10 are arranged side by side in the front-rear direction. At this time, the illuminating device 10 on the front side in the front-rear direction is arranged so that the inclined surface (upper surface 126 b) of the heat radiating plate group 122 is inclined forward and downward, and the illuminating device 10 on the rear side in the front-rear direction is It arrange | positions so that an inclined surface (upper surface 126b) may incline back and below. And in this state, the edge parts 124 and 124 of the heat radiating members 120 and 120 of both the lighting fixtures 10 and 10 and the fixing | fixed part 410 and 410 of each arm attachment member 40 and 40 are fitted, respectively.

  Next, the fixing member 410 is overlapped with the fixing portion 410 and the edge portions 124 on both sides so that the fixing portion 410 is aligned with the step of the first connecting portion 210.

  Thereafter, the second connecting portions 220 and 220 on both sides of the connecting member 20 are screwed to the edge portions 124 and 124 of the lighting fixtures 10 and 10, and the fixing portion 410 and the first connecting portion 210 are connected to the lighting fixtures 10 and 10. Screw to the 10 edges 124,124. By doing so, the two lighting fixtures 10 are connected by the connecting member 20.

  Next, the power supply unit 50 is attached to the pair of arm attachment members 40, 40. At this time, in a state where the screw is passed through the through hole provided in the bottom plate 520 constituting the case 510 of the power supply unit 50, the power supply unit 50 is screwed into the screw hole of each mounting portion 420, whereby the power supply unit 50 is It is attached to a pair of arm attachment members 40. Thereafter, the output cable drawn from the power supply unit 50 is connected.

  Thereafter, the screws 30, 330 passed through the two screw insertion holes of the support plate 320 are respectively screwed into the two screw holes of the bearing portion 430 of the arm attachment member 40, thereby attaching the arm 30 to the arm attachment member 40. .

  Thus, the lighting device 1 is assembled (see FIGS. 1 and 2).

  The lighting device 1 assembled by the above procedure can be fixed to a ceiling (high ceiling) such as a gymnasium or a hall by the following method, for example.

  First, a pair of suspension bolts (fixed portion 60) suspended and fixed from the ceiling (high ceiling) are inserted into the bolt insertion holes 311 and 312 of the arm 30, respectively. And a pair of suspension bolt (fixed part 60) of the state inserted in the bolt insertion hole 311 and 312 is each tightened with a nut.

  Thus, the lighting device 1 is fixed to a ceiling (high ceiling) such as a gymnasium or a hall.

  At this time, the luminaires 10 and 10 are arranged in a state where the luminaire main body 110 is on the lower side and the heat dissipation member 120 is on the upper side. Therefore, the space below the lighting fixtures 10, 10 in the lighting space 61 is mainly illuminated by the light emitted from the lighting fixtures 10, 10. And as for the heat radiating member (heat radiating part) 120,120 of each luminaire 10,10, the inclined surface (upper surface 126b) of the heat radiating plate group 122 is downward from the center side in the front-rear direction toward the outside (front side and rear side). It will be inclined.

  Further, the heat dissipating members (heat dissipating parts) 120 and 120 of the lighting fixtures 10 and 10 are exposed to the illumination space 61 to which the light from the light source 130 is irradiated.

  When the lighting device 1 is fixed to a ceiling (high ceiling) such as a gymnasium or a hall in this way, an object such as the badminton shuttle 70 is not formed on the upper surface 126b unless the upper surface 126b of the radiator plate group 122 is inclined. When falling, an object such as the shuttle 70 may ride on the upper surface 126b (see FIG. 7). The shuttle 70 is an object having a ball part 71 and a blade part 72 attached to the ball part 71.

  In the luminaire 10 shown in FIG. 7, a plurality of heat sinks 125 having a substantially rectangular plate shape and a congruent shape are used. Then, the heat radiating plate group 122 is formed by integrally forming the plurality of heat radiating plates 125 on the upper surface of the main body 123 so that the heat radiating plates 125 are arranged at intervals in the left-right direction. Therefore, the upper surface 126b of the heat sink plate group 122 is a flat surface extending substantially horizontally.

  Further, in the luminaire 10 shown in FIG. 7, the heat radiating plate group 122 is formed by arranging a plurality of heat radiating plates 125, 125 so as to be arranged at an interval narrower than the width of the ball portion 71. Therefore, it is possible to suppress the entry of an object such as the shuttle 70 into the gap between the radiator plates 125 adjacent to each other. However, as described above, in the heat radiating plate group 122 shown in FIG. 7, since the upper surface 126b is a flat surface extending substantially horizontally, an object can easily ride on the upper surface 126b of the heat radiating plate group 122.

  On the other hand, in this embodiment, the upper surface 126b of the heat radiating plate group 122 is inclined downward from the center side in the front-rear direction toward the outer peripheral side (front side and rear side). Furthermore, the heat radiating plate group 122 is formed by arranging the plurality of heat radiating plates 125 and 125 so as to be arranged at intervals smaller than the width of the ball portion 71. Therefore, even if an object such as the badminton shuttle 70 falls on the upper surface 126b, the object such as the shuttle 70 can be dropped along the upper surface 126b (see FIG. 8). Therefore, it is possible to suppress an object such as a badminton shuttle 70 from climbing on the heat sink 125.

  In the present embodiment, the power supply unit 50 is arranged above the heat radiating plate group 122 so that the upper part is a flat surface. Therefore, in the lighting device 1 according to the present embodiment, there is a possibility that an object such as the badminton shuttle 70 may ride on the power supply unit 50.

  However, in this embodiment, the possibility that an object such as a badminton shuttle 70 will ride on the upper part of the heat dissipation plate 125 can be reduced as compared with the conventional configuration. The possibility that an object such as the shuttle 70 will get on can be reduced.

  Furthermore, if the upper part (top plate 530 and side plate 540) of the power supply unit 50 is formed as an inclined surface or the power supply unit 50 is not exposed to the illumination space 61, an object such as a badminton shuttle 70 is placed on the lighting device 1. The possibility of getting on can be made lower.

  Moreover, in this embodiment, the outer peripheral part at the time of assembling the illuminating device 1 from the other end (center part in the case of assembling the illuminating device 1) from the one end (center part in the case of assembling the illuminating device 1) to the heat sink plate 122 in the state seen from the left-right direction ), A taper portion 128 inclined downward is illustrated. However, the shape of the heat sink group 122 is not limited to this, and for example, the heat sink group 122 shown in FIGS. 11 and 12 can be used.

  11 and 12 illustrate an example in which the tapered portion 128 is formed as viewed from the front-rear direction.

  Specifically, in the luminaire 10 shown in FIGS. 11 and 12, the heat radiating plate group 122 is formed using a plurality of heat radiating plates 125 having substantially rectangular plate shapes and different heights.

  And similarly to the said embodiment, the heat sink 125 is formed by integrally forming on the upper surface of the main-body part 123 so that it may be in the state arrange | positioned at intervals in the left-right direction. Is to be formed.

  At this time, in FIG. 11, the height of the heat sink 125 is gradually increased from both ends in the left-right direction (width direction) toward the center. That is, the heat radiating plate group 122 shown in FIG. 11 is formed to have a substantially mountain shape protruding upward when viewed from the front-rear direction.

  The surface 126 of the heat radiating plate group 122 shown in FIG.

  Specifically, the upper surface 126b of the heat radiating plate group 122 can be represented by a virtual upper surface C2 that approximates the upper region R2 where the upper end surfaces 127b of the plurality of heat radiating plates 125 are located.

  Thus, when the surface 126 of the heat sink group 122 is represented by a virtual plane C, the surface 126 of the heat sink group 122 tapers in a direction away from the luminaire main body 110 when viewed from the front-rear direction. A portion 128 can be provided.

  The heat sink group 122 shown in FIG. 11 has a surface 126 that tapers upward when the lighting fixture 10 in a state where the heat sink plate 122 is arranged on the upper side of the lighting fixture main body 110 is viewed from the front-rear direction. It is formed to have a tapered portion 128.

  At this time, in the taper portion 128, the start point 128a becomes a point P1 at the left end (one end in the width direction) and a point P2 at the right end (the other end in the width direction), and the end point 128b is a vertex P3 formed at the top. (See FIG. 11B).

  Further, in the present embodiment, the tapered portion 128 includes a straight line segment L1 connecting the point P1 at the left end (one end in the width direction) and the vertex P3, and a point P2 and the vertex P3 at the right end (the other end in the width direction). And a straight line segment L2 to be connected.

  Thus, in the lighting fixture 10 shown in FIG. 11, when the lighting fixture 10 is set to the state shown in FIG. 11B, the heat dissipation plate group 122 has the point P <b> 1 at the left end (one end in the width direction) and the right end (width). The other end in the direction) is tapered from the point P2 toward the apex P3. In other words, when the lighting fixture 10 is in the state shown in FIG. 11B, the apex P3 is the uppermost position on the surface 126 of the heat radiating plate group 122, and from the apex P3 to almost both ends in the width direction of the main body 123. A taper portion 128 that expands so as to expand is formed.

  And in this embodiment, when the lighting fixture 10 is made into the state shown in FIG.11 (b), the taper part 128 and the width direction left end (one width direction end) of the main-body part 123 are set to the heat sink group 122. FIG. One triangle formed by a straight line connecting the point P1 and the right end (the other end in the width direction) P2 is formed.

  On the other hand, in FIG. 12, the height of the heat dissipation plate 125 is gradually increased from the left end (one end) in the left-right direction (width direction) toward the right end (the other end). That is, the heat sink group 122 shown in FIG. 12 has a contour shape in the state viewed from the front-rear direction substantially the same as the contour shape in the state seen from the left-right direction of the heat sink plate group 122 shown in the above embodiment. Is formed.

  The surface 126 of the heat radiating plate group 122 shown in FIG. 12 can also be represented by a virtual plane C that approximates the region R where the end surfaces 127 of the plurality of heat radiating plates 125 are located.

  Specifically, the front side surface 126a of the heat radiating plate group 122 can be represented by a virtual front surface C1 that approximates the front region R1 where the front end surfaces 127a of the plurality of heat radiating plates 125 are located. Further, the upper surface 126b of the heat radiating plate group 122 can be represented by a virtual upper surface C2 that approximates the upper region R2 where the upper end surfaces 127b of the plurality of heat radiating plates 125 are located. The rear side surface 126c of the heat radiating plate group 122 can be represented by a virtual rear surface C3 that approximates the rear side region R3 where the rear end surfaces 127c of the plurality of heat radiating plates 125 are located.

  Thus, when the surface 126 of the heat sink group 122 is represented by a virtual plane C, the surface 126 of the heat sink group 122 tapers in a direction away from the luminaire main body 110 when viewed from the front-rear direction. A portion 128 can be provided.

  The heat sink group 122 shown in FIG. 12 tapers the surface 126 upward when the lighting fixture 10 in a state where the heat sink plate 122 is arranged on the upper side of the lighting fixture main body 110 is viewed from the front-rear direction. It is formed to have a tapered portion 128.

  At this time, in the taper portion 128, the start point 128a becomes a point P1 at the left end (one end in the width direction) and a point P2 at the right end (the other end in the width direction), and the end point 128b is a vertex P3 formed at the top. (See FIG. 12B).

  Further, in the present embodiment, the tapered portion 128 includes a straight line segment L1 connecting the point P1 at the left end (one end in the width direction) and the vertex P3, and a point P2 and the vertex P3 at the right end (the other end in the width direction). And a straight line segment L2 to be connected.

  Thus, in the lighting fixture 10 shown in FIG. 12, when the lighting fixture 10 is in the state shown in FIG. 12B, the heat dissipation plate group 122 includes the point P <b> 1 at the left end (one end in the width direction) and the right end (width). The other end in the direction) is tapered from the point P2 toward the apex P3. In other words, when the lighting fixture 10 is in the state shown in FIG. 12B, the apex P <b> 3 is the uppermost position on the surface 126 of the heat radiating plate group 122, and from the apex P <b> 3 to almost both ends in the width direction of the main body 123. A taper portion 128 that expands so as to expand is formed.

  And in this embodiment, when the lighting fixture 10 is made into the state shown in FIG.12 (b), the taper part 128 and the width direction left end (one end of the width direction) of the main-body part 123 are set to the heat sink plate group 122. One triangle formed by a straight line connecting the point P1 and the right end (the other end in the width direction) P2 is formed.

  As described above, in the present embodiment, the lighting device 1 radiates heat generated by the light source 130 by being fixed to the lighting fixture body 110 having the light source 130 and the upper side (one side) of the lighting fixture body 110. And a heat dissipating member (heat dissipating part) 120. This illuminating device 1 is fixed to the fixed part 60 in a state where the heat radiating member (heat radiating part) 120 is exposed to the illumination space 61 irradiated with light from the light source 130.

  Moreover, the heat radiating member 120 concerning this embodiment is attached to the lighting fixture main body (heated to-be-attached member) 110, and radiates the heat which arose in the to-be-attached member.

  The heat dissipating member 120 has a heat dissipating plate group 122 composed of a plurality of heat dissipating plates 125 projecting so as to extend away from the luminaire main body 110.

  Here, when the virtual surface C that approximates the region R where the end surfaces 127 of the plurality of heat sinks 125 are located is the surface 126 of the heat sink plate 122, the heat sink plate 122 is arranged on the upper side of the luminaire main body 110. The surface 126 of the heat radiating plate group 122 has a tapered portion 128 that tapers upward in a side view in the above state.

  In the taper portion 128, the start point 128a is a point P1 at one end in the width direction of the heat radiating plate group 122 and a point P2 at the other end in the width direction, and the end point 128b is a vertex P3 formed at the top. .

  By doing so, even if an object such as the badminton shuttle 70 falls on the upper surface 126b of the heat radiating plate group 122, the object such as the shuttle 70 can be dropped along the upper surface 126b. Therefore, it is possible to suppress an object such as a badminton shuttle 70 from climbing on the heat sink 125.

  Thus, according to the present embodiment, it is possible to obtain the lighting device 1 and the heat radiating member 120 capable of suppressing an object from riding on the heat radiating plate 125.

  Further, the taper portion 128 is formed by a straight line segment L1 connecting the point P1 at one end in the width direction and the vertex P3, and a straight line segment L2 connecting the point P2 at the other end in the width direction and the apex P3. Can be done.

  Moreover, the taper part 128 can also be formed by making the height of the heat sink 125 higher as it goes from one end to the other end in the width direction.

  Moreover, the taper part 128 can also be formed by making the height of the heat sink 125 high as it goes to the center from the both ends of the width direction.

  Thus, if the taper part 128 is formed by changing the height of the heat sink 125 by using the linear taper part 128, the heat sink group that can suppress the object from riding on the upper part. 122 can be manufactured more easily.

  In addition, the heat radiating member 120 includes a base 121 that is detachably attached to one side of the luminaire main body 110, and a heat radiating plate group 122 that protrudes from the base 121, so that the heat radiating portion is pushed toward the river. Also good.

  In this case, since only the heat radiating member 120 can be replaced, for example, when some trouble occurs in the luminaire 10, it is not necessary to replace the entire luminaire 10, thereby reducing the cost. Will be able to. Moreover, if a plurality of types of heat dissipating members (heat dissipating members having different shapes and numbers of heat dissipating plates 125) are prepared, the heat dissipating member attached to the luminaire main body 110 can be appropriately selected according to the application.

  Further, the slide mechanism 80 can attach and detach the heat radiating member 120 to and from the luminaire main body 110.

  Also, the heat radiating member 120 can be attached to and detached from the luminaire main body 110 by the fitting mechanism 90.

  Thus, if the heat radiating member 120 is attached to and detached from the lighting fixture main body 110 by the slide mechanism 80 and the fitting mechanism 90, the heat radiating member 120 can be attached to and detached from the lighting fixture main body 110 more easily. become.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made.

  For example, although the so-called high ceiling lighting device has been exemplified as the lighting device in the embodiment and the modification thereof, the present invention is not limited to this. For example, the present invention can be applied to lighting devices such as road lights and street lights.

  Moreover, in the said embodiment and its modification, although what used LED as a light source was illustrated, it is not restricted to this, For example, it is also possible to comprise a light source with a halogen lamp etc.

  Moreover, in the said embodiment and its modification, when it looked from the front-back direction or the left-right direction, it illustrated the heat sink group in which a taper part is formed. It can also be set as the heat sink group formed. Such a heat dissipation plate group can be obtained, for example, by making the shape of the heat dissipation plate group into a quadrangular pyramid shape protruding upward.

  Further, the direction in which the tapered portion is formed is not limited to when viewed from the front-rear direction or the left-right direction. That is, the shape of the heat radiating plate group is such that a taper portion is formed at least once before the luminaire having the heat radiating plate group arranged on the upper side of the luminaire main body is rotated once around the vertical direction. It suffices if it has a shape like this.

  Further, the shape of the tapered portion does not need to be linear from the upper end to the lower end, and may be slightly curved or bent.

  Moreover, it is also possible to set it as the lighting fixture by which the thermal radiation part is being fixed in the state which cannot be made to attach or detach with respect to a lighting fixture main body.

  In addition, the specifications (shape, size, layout, etc.) of the luminaire main body, the heat radiating part, and other details can be changed as appropriate.

1 Lighting device 60 Ceiling (fixed part)
61 Lighting space 70 Shuttle (object)
80 slide mechanism 90 fitting mechanism 110 luminaire main body (attached member)
120 Heat dissipation member (heat dissipation part)
121 base part 122 heat sink group 125 heat sink 126 surface 127 end face 128 taper part 128a start point 128b end point 130 light source C virtual plane L1 line segment L2 line segment P1 point at one end in the width direction P2 point at the other end in the width direction P3 vertex R region

Claims (9)

A lighting fixture main body having a light source; and a heat radiating portion fixed to one side of the lighting fixture main body to dissipate heat generated by the light source, and the heat radiating portion is irradiated with light from the light source. A lighting device fixed to a fixed part in a state of being exposed to space,
The heat dissipating part has a heat dissipating plate group composed of a plurality of heat dissipating plates protruding so as to extend in a direction away from the lighting fixture body.
When a virtual surface approximating the region where the end surfaces of the plurality of heat sinks are located is the surface of the heat sink group,
In a side view in a state where the heat radiating plate group is arranged on the upper side of the luminaire main body, the surface of the heat radiating plate group has a tapered portion that tapers upward,
The taper portion has a starting point which is a point at one end in the width direction and a point at the other end in the width direction of the heat radiating plate group, and an end point which is a vertex formed at the top.   The taper portion is formed by a straight line segment connecting the point at the one end in the width direction and the apex, and a straight line segment connecting the point at the other end in the width direction and the apex. The lighting device according to claim 1.   The lighting device according to claim 1, wherein the tapered portion is formed by increasing a height of the heat radiating plate from one end to the other end in the width direction.   The lighting device according to claim 1, wherein the tapered portion is formed by increasing the height of the heat radiating plate from the both ends in the width direction toward the center.   The heat radiating part is a heat radiating member including a base part detachably attached to one side of the lighting fixture body and the heat radiating plate group protruding from the base part. The illuminating device of any one of -4.   The lighting device according to claim 5, wherein the heat radiating member is attached to and detached from the lighting fixture body by a slide mechanism.   The lighting device according to claim 5 or 6, wherein the heat radiating member is attached to and detached from the lighting fixture body by a fitting mechanism.   The heat radiating member used for the illuminating device of any one of Claims 5-7. A heat dissipating member attached to the attached member that generates heat and dissipating heat generated in the attached member,
A base part detachably attached to one side of the attached member;
A heat sink group composed of a plurality of heat sinks protruding so as to extend in a direction away from the base portion;
With
When a virtual surface approximating the region where the end surfaces of the plurality of heat sinks are located is the surface of the heat sink group,
In a side view in which the heat dissipation plate group is arranged on the upper side of the base portion, the surface of the heat dissipation plate group has a tapered portion that tapers upward,
The taper portion has a starting point that is a point at one end in the width direction of the heat radiating plate group and a point at the other end in the width direction, and an end point that is a vertex formed at the uppermost portion.

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