JP7065635B2 - lighting equipment - Google Patents

Description

The present invention relates to a luminaire including an arm for holding a light source unit and a power supply unit.

Conventionally, a lighting fixture attached to a ceiling, a beam, or the like is known. In addition, lighting fixtures that can be hung from high ceilings are known. As these luminaires, a luminaire provided with an arm for holding a light source unit and a power supply unit has been proposed. Patent Document 1 discloses a lighting fixture in which both side surfaces of a power supply unit in which a power supply board is housed and both side surfaces of a light source unit in which an LED is mounted are fixed by a U-shaped arm. In Patent Document 1, the power supply unit and the light source unit are screwed to the arm at the same position. Patent Document 2 discloses a lighting fixture in which a light source unit is held by an arm and the power supply unit is sandwiched between the arm and the ceiling. The arm portion of the arm has a fixed portion mounted on the ceiling and a support portion that supports and thermally connects the bottom surface of the power supply unit, and the light source unit is supported at the tip of the arm portion. The upper surface of the power supply unit is in contact with the ceiling and is thermally connected to the ceiling.

JP-A-2017-191754 Japanese Unexamined Patent Publication No. 2017-195035

However, in the luminaire disclosed in Patent Document 1, the load is concentrated on the arm mounting portion provided at one end on each side of the arm to which the light source unit is mounted. If the number of arm mounting portions is increased to two on one side in order to avoid this, the function of the long hole for angle adjustment formed in the arm mounting portion is lost, and the angle of the light source unit cannot be adjusted. Further, in the lighting fixture disclosed in Patent Document 2, since the power supply unit is sandwiched between the ceiling and the support portion of the arm, the portion of the ceiling where the upper surface of the power supply unit is in contact may be discolored.

The present invention has been made to solve the above-mentioned problems, and provides a lighting fixture that easily secures the rigidity of an arm while suppressing discoloration of a mounted portion such as a ceiling. ..

The lighting fixture according to the present invention includes a light source unit having a light source, a power supply unit for supplying power to the light source, and an arm for holding the light source unit and the power supply unit. And an arm portion that is connected to the mounting portion and extends from the mounting portion to the light source side, and the arm portion is provided on the tip side with the mounting portion side as the base end and holds the light source unit. It has a power supply holding part that is provided between the mounting part and the light source holding part and holds the side surface of the power supply unit, and the power supply holding part is formed with a cut-up piece that holds the bottom surface of the power supply unit. A slit is formed on the bottom surface of the power supply unit, and the power supply holding portion holds the power supply unit by inserting the cut-up piece into the slit .

According to the present invention, since the power supply holding portion of the arm holds the side surface of the power supply unit, it is not necessary to sandwich the power supply unit between the mounted portion such as the ceiling and the arm. Therefore, it is possible to prevent the attached portion from being discolored. Further, the light source unit and the power supply unit are held by the light source holding portion and the power supply holding portion, which are separate positions of the arm. Therefore, the load is not concentrated on a specific position of the arm. Therefore, the rigidity of the arm can be easily ensured.

It is an assembly perspective view which shows the lighting fixture 1 which concerns on Embodiment 1 of this invention. It is an assembly perspective view which shows the lighting fixture 1 which concerns on Embodiment 1 of this invention. It is a top view which shows the lighting fixture 1 which concerns on Embodiment 1 of this invention. It is a side view from one direction which shows the lighting fixture 1 which concerns on Embodiment 1 of this invention. It is a side view from the other direction which shows the lighting fixture 1 which concerns on Embodiment 1 of this invention. It is a perspective view which shows the state which the light source unit 40 was removed from the arm 11 in Embodiment 1 of this invention. FIG. 5 is a perspective view showing a state in which the light source unit 40 and the power supply unit 20 are removed from the arm 11 in the first embodiment of the present invention. It is a perspective view which shows the arm 11 which concerns on Embodiment 1 of this invention. It is an exploded perspective view of the power supply unit 20 which concerns on Embodiment 1 of this invention. It is an exploded perspective view which shows the luminaire 1 which concerns on Embodiment 1 of this invention. It is a perspective view which shows the fin unit 30a which concerns on Embodiment 1 of this invention. It is a perspective view which shows the fin 31 which concerns on Embodiment 1 of this invention. It is a top view which shows the arrangement place of the fin unit 30a which concerns on Embodiment 1 of this invention. It is an exploded perspective view which shows the light source unit 40 which concerns on Embodiment 1 of this invention. It is a perspective view which shows the lighting apparatus 1a which concerns on Embodiment 1 of this invention. It is a perspective view which shows the arm 111 which concerns on Embodiment 2 of this invention. FIG. 3 is a perspective view showing a state in which the light source unit 40 is removed from the arm 11 in the third embodiment of the present invention.

Embodiment 1.
Hereinafter, embodiments of the lighting fixture according to the present invention will be described with reference to the drawings. FIG. 1 is an assembled perspective view showing the lighting fixture 1 according to the first embodiment of the present invention, and FIG. 2 is an assembled perspective view showing the lighting fixture 1 according to the first embodiment of the present invention. FIG. 2 is an assembly perspective view when viewed from an angle different from that of FIG. 1. FIG. 3 is a top view showing the lighting fixture 1 according to the first embodiment of the present invention. FIG. 4 is a side view from one direction showing the luminaire 1 according to the first embodiment of the present invention, and FIG. 5 is a side view from the other direction showing the luminaire 1 according to the first embodiment of the present invention. It is a figure. As shown in FIGS. 1 to 5, the luminaire 1 includes a light source unit 40 and an arm unit 10. The arm unit 10 has an arm 11 attached to a mounted portion such as a ceiling or a beam, and a power supply unit 20 that supplies power to the light source 42.

FIG. 6 is a perspective view showing a state in which the light source unit 40 is removed from the arm 11 in the first embodiment of the present invention, and FIG. 7 shows the light source unit 40 and the power supply unit 20 in the first embodiment of the present invention. It is a perspective view which shows the state which was removed from the arm 11. As shown in FIG. 6, the side surface of the light source unit 40 is held by the light source holding portion 11d of the arm 11. As shown in FIG. 7, the side surface of the power supply unit 20 is held by the power supply holding portion 11c of the arm 11.

(Arm 11)
FIG. 8 is a perspective view showing the arm 11 according to the first embodiment of the present invention. As shown in FIG. 8, the arm 11 is, for example, a member formed in a U shape by bending a sheet metal, and the material thereof is a galvanized steel plate, stainless steel, or the like. The arm 11 has a mounting portion 11a to be mounted to the mounted portion, and an arm portion 11b which is connected to the mounting portion 11a and is a pair of members extending from both ends of the mounting portion 11a toward the light source 42. The mounting portion 11a and the arm portion 11b are integrally formed. The mounting portion 11a is a plate-shaped member extending in one direction, and arm mounting holes 11e for screwing to the mounted portion are formed at both ends thereof. Further, at least one of the arm mounting holes 11e is provided with a wire hole 11j into which the electric wire 26 is inserted. By inserting the electric wire 26 into the wire hole 11j, the electric wire 26 fulfills the function of preventing the lighting fixture 1 from falling. Further, the wire hole 11j functions as a tension stopper for the electric wire 26.

The arm portion 11b has a light source holding portion 11d provided on the tip end side with the mounting portion 11a side as a base end, and a power supply holding portion 11c provided between the mounting portion 11a and the light source holding portion 11d. The light source holding portion 11d rotatably holds the light source unit 40, and has a fulcrum portion 11h and a guide portion 11i. The fulcrum portion 11h serves as a fulcrum for the rotation of the light source unit 40, and is, for example, a round hole. The guide portion 11i extends downward from the horizontal position of the fulcrum portion 11h to guide the rotation of the light source unit 40, and is an arc-shaped elongated hole. That is, the fulcrum portion 11h and the upper end of the guide portion 11i are at the same position in the horizontal direction. Angle adjusting bolts 13 (see FIG. 7) are inserted into the fulcrum portion 11h and the guide portion 11i, respectively, and screwed into the main body frame 33 of the light source unit 40.

When the luminaire 1 is mounted at a right angle to the mounted portion, the lighting fixture 1 is screwed in a state where the angle adjusting bolt 13 is inserted into the upper end of the guide portion 11i. Since the fulcrum portion 11h and the upper end of the guide portion 11i are at the same position in the horizontal direction, the luminaire 1 is held at a position perpendicular to the attached portion. Since the angle adjusting bolt 13 is located at the upper end of the guide portion 11i, even if the angle adjusting bolt 13 is loosened, the position of the angle adjusting bolt 13 does not change. Therefore, the arm 11 can keep the light source unit 40 horizontal.

When the luminaire 1 is mounted at an angle with respect to the mounted portion, the angle adjusting bolt 13 is loosened before mounting, and after the angle of the arm 11 is adjusted, the angle adjusting bolt 13 is securely fixed. In this case, the angle adjusting bolt 13 is screwed in a state where the angle adjusting bolt 13 is inserted below the upper end of the guide portion 11i. As a result, the luminaire 1 rotates, and the luminaire 1 is screwed in a state of being inclined with respect to the attached portion. Since the light source holding portion 11d is composed of a fulcrum portion 11h and a guide portion 11i located horizontally to each other, the light source unit 40 is distributed and held in the horizontal direction which is the lateral direction of the arm portion 11b. .. Therefore, the load can be dispersed. Therefore, the vibration resistance in the horizontal direction of the light source unit 40 can be improved as compared with the case where the angle adjusting bolts 13 are arranged in parallel in the vertical direction.

The power supply holding portion 11c is provided at an intermediate position between the arm portions 11b and sandwiches both side surfaces of the power supply unit 20. The power supply holding portion 11c is formed with a cut-up piece 11g for holding the bottom surface of the power supply unit 20 and a fastening hole 11f into which the power supply mounting screw 12 for fixing the side surface of the power supply unit 20 is inserted.

(Power supply unit 20)
FIG. 9 is an exploded perspective view of the power supply unit 20 according to the first embodiment of the present invention. As shown in FIG. 9, the power supply unit 20 converts the power of a commercial power supply supplied from the outside into DC power and supplies it to the light source module 41. The power supply unit 20 has an internal component having a power supply board and a power supply terminal block 24, and a case 21 for accommodating the internal component. The power supply board (not shown) of the internal component supplies power to the light source module 41. The power terminal block 24 of the internal component is a terminal to which the electric wire 26 from the commercial power source is connected.

The case 21 is a box-shaped member formed by bending a sheet metal, and the material is aluminum or the like. This makes it possible to reduce the weight. The case 21 has a case bottom 23 on the bottom surface side and a case top 22 on the top surface side, and the case top 22 is superposed on the case bottom 23 to form the case 21. The case bottom 23 and the case top 22 are fastened together with the arm 11 by the power supply mounting screw 12 on each side surface. As a result, the number of screws for fixing the case bottom 23 and the case top 22 can be reduced, and the rigidity of the case 21 can be ensured.

A power supply board, a power supply terminal block 24, and the like are placed in the case bottom 23. A slit 21c is formed on the bottom surface of the case bottom 23, and a cut-up piece 11g of the power holding portion 11c is inserted (see FIG. 7). As a result, the power supply holding unit 11c holds the power supply unit 20. In this way, the cut-up piece 11g is inserted into the slit 21c and hooked to hold the power supply unit 20, so that the number of screws required for assembly can be reduced. An opening 21b is formed on one side surface of the case top 22 by partially cutting it up. The cut-up portion becomes a shielding portion 21a having a function of a canopy covering the opening 21b. The power supply terminal block 24 is exposed from the opening 21b, and the electric wire 26 is inserted into the opening 21b. The shielding portion 21a covers the upper surface side of the opening 21b to prevent dust and the like from adhering to the power supply terminal block 24.

Here, the positional relationship between the power supply unit 20 and the light source holding portion 11d of the arm 11 will be described. In the light source holding portion 11d, the distance between the shielding portion 21a and the fulcrum portion 11h is shorter than the distance between the shielding portion 21a and the guide portion 11i. That is, the guide portion 11i is formed on the other side surface side opposite to the one side surface side of the power supply unit 20 in which the shielding portion 21a is formed. As a result, when the angle of the light source unit 40 is adjusted, the shielding portion 21a faces the floor side. Therefore, it is possible to prevent dust and the like falling from the upper surface side from entering the power supply terminal block 24 from the opening 21b.

Next, a procedure for attaching the side surface of the power supply unit 20 to the arm 11 will be described. First, the power supply unit 20 is arranged inside the arm 11 and on the side of the mounting portion 11a. Next, the cut-up piece 11g of the arm 11 is hooked on the slit 21c of the power supply unit 20 and fitted into the slit 21c. Then, the arm 11 and the side surface of the power supply unit 20 are fastened together by the power supply mounting screw 12. By attaching the power supply unit 20 to the arm 11 to form the arm unit 10 in this way, the power supply unit 20 having a substantially box body serves as a reinforcing material for the arm 11. Therefore, the rigidity and strength of the arm unit 10 can be improved.

FIG. 10 is an exploded perspective view showing the lighting fixture 1 according to the first embodiment of the present invention. As shown in FIG. 10, the light source unit 40 includes a heat sink 30, a main body frame 33, a light source module 41, a lens module 50, a cover 60, and a fall prevention unit 70. The main body frame 33 is a pair of plate materials and is attached to the light source holding portion 11d of the arm 11. The main body frame 33 is a plate material having strength such as galvanized steel plate or stainless steel, and one end thereof is bent to form a flange 33b. The flange 33b is attached to the base plate 32 of the heat sink 30, and the bent portion is provided with a reinforcing rib 33a that assists the strength of the main body frame 33.

(Heat sink 30)
The heat sink 30 includes a base plate 32 to which the light source module 41 is attached to one surface, and a fin unit 30a attached to the other side surface of the base plate 32 to dissipate heat generated from the light source module 41. The base plate 32 is formed in a U shape by bending both ends of the sheet metal, and the material is aluminum or the like. The flange 33b of the main body frame 33 is attached to the two unbent sides of the base plate 32. Base mounting holes 32c are formed at the four corners of the base plate 32. The base plate 32 has a rectangular shape, and although it has a square shape in the first embodiment, it may have a rectangular shape. Since the base plate 32 is closer to the light source module 41 which is a heat source than the fin unit 30a, it is made of a thick plate material.

FIG. 11 is a perspective view showing the fin unit 30a according to the first embodiment of the present invention. As shown in FIG. 11, the fin unit 30a has a plurality of fins 31 radially arranged on the base plate 32. The fin unit 30a and the base plate 32 are joined by caulking, welding, or the like.

FIG. 12 is a perspective view showing the fin 31 according to the first embodiment of the present invention. As shown in FIG. 12, the fin 31 is formed in a U shape by bending a sheet metal, and the material is aluminum or the like. The fin 31 has a fin bottom surface 31a which is a U-shaped bottom surface and a fin side surface 31b which is a U-shaped side surface. The fin bottom surface 31a is attached to the base plate 32 and has an isosceles trapezoidal shape extending outward from the center in the radial direction. The fin side surface 31b is connected to both ends of the fin bottom surface 31a and stands up from the base plate 32. Since the fin bottom surface 31a has an isosceles trapezoidal shape, when a plurality of fins 31 are arranged radially, the distance between the fin side surfaces 31b is wide on the center side in the radial direction and narrow on the outside of the base plate 32.

The outer upper portion of the fin side surface 31b in the radial direction is an R portion 31c having an R shape. As a result, the heat sink 30 is housed in the substantially conical lighting cover 80 or the substantially quadrangular pyramid-shaped lighting cover 80 without changing its shape. Further, when a sheet metal for avoiding dust is provided on the upper part of the heat sink 30, the area of the sheet metal can be made smaller than the area of the base plate 32. The fin 31 is formed with a fin opening 31d that communicates with the base plate 32. The fin opening 31d is formed substantially in the center of the fin side surface 31b. As a result, the flow of air in the horizontal direction is promoted, and the heat dissipation can be improved. According to the heat transfer simulation, by providing the fin opening 31d, heat dissipation is promoted as compared with the case where the fin opening 31d is not provided, and the atmospheric temperature of the fin opening 31d is lowered by about 1 ° C.

The fin 31 has a notch 31e on the outside in the radial direction and on the base plate 32 side. According to the heat transfer simulation, even if a part of the fin 31 outside the radiation direction and on the base plate 32 side is cut out, the deterioration of the heat dissipation performance is small. Further, the notch 31e can reduce the weight of the fin 31. Further, as the area of the fin bottom surface 31a becomes smaller, the joint area between the fin unit 30a and the base surface becomes smaller, the number of caulked portions, the welding length, etc. are reduced, and the fin unit 30a and the base surface are combined. It can be bonded mechanically and thermally firmly.

FIG. 13 is a top view showing the arrangement location of the fin unit 30a according to the first embodiment of the present invention. As shown in FIG. 13, the fins 31 are arranged outward from a position distant from the center of the base plate 32. According to the heat transfer simulation, even if the fins 31 are arranged near the center of the base plate 32, the heat dissipation effect is not promoted to that extent. That is, even if a space is formed in the center of the base plate 32, the deterioration of the heat dissipation performance is slight. By forming the space in the center of the base plate 32 in this way, it is possible to reduce the number of members of the heat sink 30 and reduce the weight of the luminaire 1 without substantially deteriorating the heat dissipation performance. Further, the fins 31 are arranged so as to approach the diagonal line of the base plate 32 from a position farther from the center of the base plate 32 toward the outside. As a result, the fins 31 having the same shape can be evenly arranged on the square base plate 32. Therefore, it is possible to suppress the bias of heat dissipation.

As described above, since the fin 31 is formed in a U shape, it stands on its own on the base plate 32. Therefore, there is no need for a member to support the fin 31 so that it does not fall over. Therefore, it is possible to simplify the jig for arranging the fins 31 on the base plate 32 and joining them. Further, in the fin 31, the distance between the adjacent fin side surfaces 31b is narrow on the center side of the base plate 32. As a result, the fin side surfaces 31b are arranged radially. By arranging the fin side surfaces 31b radially in this way, the area of the fin side surfaces 31b in the direction that obstructs the air flow is reduced regardless of the direction of the horizontal air flow. Therefore, the heat dissipation can be improved. According to the heat transfer simulation, when the fin side surfaces 31b are arranged radially, heat dissipation is promoted and the atmospheric temperature of the fin side surfaces 31b is lowered by about 2 ° C. as compared with the case where the fin side surfaces 31b are arranged in the same direction.

FIG. 14 is an exploded perspective view showing the light source unit 40 according to the first embodiment of the present invention. As shown in FIG. 14, the light source module 41 has a square light source substrate 43 attached to the base plate 32, and a light source 42 composed of, for example, LEDs arranged on the light source substrate 43 (see FIG. 10). ). The light source substrate 43 is formed with four light source boss holes 41b for aligning with the lens module 50. The lens module 50 has a square lens substrate 52 provided on the irradiation side of the light source module 41 and a plurality of lenses 51 arranged on the lens substrate 52, and one lens 51 corresponds to one light source 42. It is provided. When the lens module 50 is arranged on the side of the light source module 41 where the light source 42 is arranged, it is necessary to align the positions of the light source 42 and the lens 51. Notched rib receivers 50a are formed at two locations on each side of the lens substrate 52 of the lens module 50, for a total of eight locations. Further, the lens substrate 52 is formed with four lens boss holes 50b for alignment with the light source module 41.

The cover 60 is a square plate material that is attached to the base plate 32 and holds the light source module 41 and the lens module 50 together with the base plate 32. The cover 60 is made of a resin such as polycarbonate, whereby the weight of the cover 60 can be reduced. Since the cover 60 is located at the position farthest from the arm 11 in the luminaire 1, the weight reduction of the cover 60 reduces the rotational moment of the luminaire 1 and improves the vibration resistance of the luminaire 1. Further, when the cover 60 is made of glass, it may be broken into fragments and fall. However, since the cover 60 is made of resin in the first embodiment, even if the cover 60 is broken, fragments are unlikely to be generated. The cover 60 is provided with a frame-shaped cover packing 62, and the cover packing 62 has the same shape as the outer shape of the light source module 41 and the lens module 50. The cover packing 62 is crushed when the light source unit 40 is assembled, and the light source module 41, the lens module 50, and the base plate 32 of the heat sink 30 are in close contact with each other.

Cover ribs 60a are formed at two locations on each of the four inner sides of the cover packing 62 of the cover 60, for a total of eight locations. The cover rib 60a fits into the rib receiving 50a of the lens module 50. Four cover bosses 60b are provided inside the cover packing 62 of the cover 60. The cover boss 60b fits into the light source boss hole 41b of the light source module 41 and the lens boss hole 50b of the lens module 50. In this way, the cover rib 60a fits into the rib receiver 50a, and the cover boss 60b fits into the light source boss hole 41b and the lens boss hole 50b, so that the light source module 41 and the lens module 50 are aligned.

Cover mounting holes 60c are formed at the four corners of the cover 60. When the cover mounting screw 61 is inserted into the cover mounting hole 60c and the base mounting hole 32c of the base plate 32 and fastened, the cover packing 62 is crushed and the light source module 41, the lens module 50, and the base plate 32 of the heat sink 30 are brought together. In close contact. As a result, it is possible to absorb the warp of the light source module 41 and prevent the lens 51 from floating away from the light source 42.

As shown in FIG. 1, the fall prevention portion 70 fastens the fall prevention metal fitting 70a attached to the attached portion, the wire 71 connecting the fall prevention metal fitting 70a and the main body frame 33, and the wire 71 and the main body frame 33. It has a set screw 72. The fall prevention unit 70 suppresses the light source unit 40 from falling even if the light source unit 40 is disengaged from the arm 11.

Next, the procedure for assembling the lighting fixture 1 will be described. First, the fin unit 30a is joined to the base plate 32 to manufacture the heat sink 30. Next, the light source module 41, the lens module 50, and the heat sink 30 are placed on the cover 60, and the light source unit 40 is assembled. Further, the power supply unit 20 and the main body frame 33 are attached to the arm 11, and the arm unit 10 is assembled. Next, the arm unit 10 is turned upside down, the light source unit 40 is placed on the arm unit 10, and the cover 60, the base plate 32, and the main body frame 33 are co-tightened by the cover mounting screws 61. Then, the electric wire 26 is attached to the light source module 41. Finally, the wire 71 extending from the fall prevention metal fitting 70a and the main body frame 33 are fastened by the retaining screw 72.

FIG. 15 is a perspective view showing the lighting device 1a according to the first embodiment of the present invention. As described above, in the luminaire 1 of the first embodiment, the outer upper portion of the fin side surface 31b in the radial direction is an R portion 31c having an R shape. As a result, as shown in FIG. 15, the heat sink 30 is housed in the substantially conical lighting cover 80 or the substantially quadrangular pyramid-shaped lighting cover 80 without changing its shape.

According to the first embodiment, since the power supply holding portion 11c of the arm 11 holds the side surface of the power supply unit 20, it is not necessary to sandwich the power supply unit 20 between the attached portion such as the ceiling and the arm 11. Therefore, it is possible to prevent the attached portion from being discolored. Further, the light source unit 40 and the power supply unit 20 are held by the light source holding unit 11d and the power supply holding unit 11c, which are separate positions of the arm 11. Therefore, the load is not concentrated on one specific position of the arm 11. Therefore, the rigidity of the arm 11 can be easily ensured.

Further, according to the first embodiment, since the plurality of fins 31 are arranged radially on the base plate 32, the air flow in the horizontal direction is obstructed regardless of the direction. The area of the fin 31 in the direction becomes smaller. Therefore, the heat dissipation can be improved.

Embodiment 2.
FIG. 16 is a perspective view showing the arm 111 according to the second embodiment of the present invention. The second embodiment is different from the first embodiment in that the arm 111 of the luminaire 100 is composed of a pair of one-sided arms 11-1 and 11-2. In the first embodiment, the attachment portion 11a connects the pair of arm portions 11b and is attached to the attached portion, but in the second embodiment, the attachment portions 11a of the one-sided arms 11-1 and 11-2 are attached. It is attached to the attached part. As described above, even if the arm 111 is composed of a pair of one-sided arms 11-1 and 11-2, the same effect as that of the first embodiment can be obtained.

Embodiment 3.
FIG. 17 is a perspective view showing a state in which the light source unit 40 is removed from the arm 11 in the third embodiment of the present invention. The third embodiment is different from the first embodiment in that the shielding portion 21a is the terminal block cover 25 that covers the upper portion and the side portion of the opening 21b in the power supply unit 220 of the lighting fixture 200. In this case, the shielding portion 21a is fixed to the upper surface side of the case 21 of the power supply unit 220 with screws. As described above, even if the shielding portion 21a is composed of the terminal block cover 25, the same effect as that of the first embodiment can be obtained.

1 Lighting equipment, 1a Lighting equipment, 10 Arm unit, 11 arm, 11-1, 11-2 One side arm, 11a mounting part, 11b arm part, 11c power supply holding part, 11d light source holding part, 11e arm mounting hole, 11j through Wire hole, 11f fastening hole, 11g cut-up piece, 11h fulcrum part, 11i guide part, 12 power supply mounting screw, 13 angle adjustment bolt, 20 power supply unit, 21 case, 21a shield part, 21b opening, 21c slit, 22 case top , 23 case bottom, 24 power terminal block, 25 terminal block cover, 26 electric wire, 30 heat source, 30a fin unit, 31 fin, 31a fin bottom, 31b fin side surface, 31c R part, 31d fin opening, 31e notch, 32 base Plate, 32c base mounting hole, 33 body frame, 33a reinforcing rib, 33b flange, 40 light source unit, 41 light source module, 41b light source boss hole, 42 light source, 43 light source board, 50 lens module, 50a rib receiver, 50b lens boss hole, 51 Lens, 52 Lens Board, 60 Cover, 60a Cover Rib, 60b Cover Boss, 60c Cover Mounting Hole, 61 Cover Mounting Screw, 62 Cover Packing, 70 Fall Prevention, 70a Fall Prevention Bracket, 71 Wire, 72 Fastening Screw, 80 Lighting Cover , 100 luminaires, 111 arms, 200 luminaires, 220 power supply units.

Claims (6)

A light source unit with a light source and
A power supply unit that supplies power to the light source and
The light source unit and the arm for holding the power supply unit are provided.
The arm
The mounting part that can be attached to the mounted part and
It has an arm portion that is connected to the mounting portion and extends from the mounting portion to the light source side.
The arm is
A light source holding portion provided on the tip side with the mounting portion side as the base end and holding the light source unit, and a light source holding portion.
It has a power supply holding portion provided between the mounting portion and the light source holding portion and holding a side surface of the power supply unit .
The power holding unit has
A cut-up piece that holds the bottom surface of the power supply unit is formed.
A slit is formed on the bottom surface of the power supply unit.
By inserting the cut-up piece into the slit, the power supply holding portion holds the power supply unit.
lighting equipment. The arm has a U shape and has a U shape.
The arm portion is a pair of members extending from both ends of the mounting portion.
The luminaire according to claim 1, wherein each of the pair of arms has a power supply holding portion that sandwiches both side surfaces of the power supply unit. The power holding unit
The luminaire according to claim 1 or 2, wherein a fastening hole into which a power supply mounting screw for fixing a side surface of the power supply unit is inserted is formed. A light source unit with a light source and
A power supply unit that supplies power to the light source and
The light source unit and the arm for holding the power supply unit are provided.
The arm
The mounting part that can be attached to the mounted part and
It has an arm portion that is connected to the mounting portion and extends from the mounting portion to the light source side.
The arm is
A light source holding portion provided on the tip side with the mounting portion side as the base end and holding the light source unit, and a light source holding portion.
It has a power supply holding portion provided between the mounting portion and the light source holding portion and holding a side surface of the power supply unit.
The light source holding portion is
The light source unit is rotatably held.
A fulcrum portion that serves as a fulcrum for the rotation of the light source unit,
It has a guide portion that extends downward from the horizontal position of the fulcrum portion and guides the rotation of the light source unit.
The power supply unit is
Internal parts with a power terminal block and
It has a case in which an opening is formed for accommodating the internal parts and inserting an electric wire connected to the power terminal block.
The case is provided with a shielding portion that covers the opening.
The distance between the shielding portion and the fulcrum portion is shorter than the distance between the shielding portion and the guide portion.
lighting equipment. The light source unit is
A base plate that dissipates heat generated from the light source,
A light source module attached to the base plate and having the light source,
A lens provided on the irradiation side of the light source module and
The luminaire according to any one of claims 1 to 4 , which is attached to the base plate and has a cover for holding the light source module and the lens together with the base plate. The lighting fixture according to claim 5 , wherein the cover is made of resin.

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