JP2021197357A - Lighting device - Google Patents

Abstract

To solve such the problem that there is a concern that assembly may become complicated on a lighting device including multiple members.SOLUTION: In a lighting device 1, a heat sink part 13 of a light source unit 10 includes a fin protrusion part 1324 further projecting from a lateral part on a side of an upper direction Z1 of a fin part 132; and a top plate opening part 1511 is provided so that a top plate part 15 disposed so as to cover the fin part 132 corresponds to the fin protrusion part 1324, whereby the lighting device 1 can be readily assembled.SELECTED DRAWING: Figure 4

Description

The present disclosure relates to a lighting device.

Conventionally, there is a lighting device formed by combining a plurality of plate-shaped metal members.

For example, the lighting device includes a light source unit having heat dissipation fins for dissipating heat from the light emitting substrate. This light source unit is provided with a top plate attached so as to cover the upper end of the heat radiation fin so that dust does not collect on the heat radiation fin. (For example, Patent Document 1)

JP-A-2019-207852

However, although this lighting device is attached with the top plate in contact with the state of the heat radiation fins, the top plate is only placed on the heat radiation fins and moves without being caught. It was difficult to assemble.

Therefore, the present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to provide a lighting device having improved assembleability.

The luminaire of the present disclosure is easy to assemble.

It is a perspective view of the lighting apparatus in Embodiment 1. FIG. It is an exploded perspective view of the lighting apparatus in Embodiment 1. FIG. It is an exploded perspective view of the lighting apparatus in Embodiment 1. FIG. It is a perspective view of the heat sink part in Embodiment 1. FIG. It is a perspective view of the base part in Embodiment 1. FIG. It is a perspective view of the fin part in Embodiment 1. FIG. It is a top view of the heat sink part in Embodiment 1. FIG. It is a perspective view of the connecting part in Embodiment 1. FIG. It is a top view of the top plate part in Embodiment 1. FIG. It is a perspective view of the power-source part in Embodiment 1. FIG. It is a perspective view of the arm in Embodiment 1. FIG. It is a perspective view of the fin protection part in Embodiment 2. FIG. It is a perspective view of the state in which the fin protection part is attached to the heat sink part in Embodiment 2. FIG. It is a reference sectional view which shows the state which the fin protection part in Embodiment 2 is sandwiched between a heat sink part and a top plate part. It is a perspective view of the lighting apparatus in Embodiment 3. FIG. FIG. 3 is an exploded perspective view of the lighting device according to the third embodiment. FIG. 3 is an exploded perspective view of the lighting device according to the third embodiment. It is a perspective view of the frame part in Embodiment 3. FIG. It is a detailed view of the wiring cover part in Embodiment 3. FIG. It is a perspective view of the top plate part in Embodiment 3. FIG. FIG. 3 is a perspective view of a portion of the lighting device in the third embodiment in a state where the terminal block case is removed. FIG. 3 is a cross-sectional view taken along the line C—C ′ of the lighting device according to the third embodiment. It is a perspective view of the state in which the top plate portion is attached to the heat sink portion in Embodiment 4. FIG. 5 is a perspective view showing a state in which the heat sink portion and the top plate portion in the fourth embodiment are in a separate state. It is a perspective view of the fin part in Embodiment 4. FIG. It is a top view of the heat sink part in Embodiment 4. FIG. It is a top view of the top plate part in Embodiment 4. FIG. It is a detailed view of the state which the top plate part was attached to the heat sink part in Embodiment 4.

Embodiment 1.
The present disclosure relates to an easily assembling luminaire.
Hereinafter, as an embodiment according to the present disclosure, a lighting device 1 attached to a mounted portion such as a ceiling will be described.
In the following description, terms indicating directions are used as appropriate, but these terms are for illustration purposes only and do not limit the lighting device. Examples of the term indicating the direction include "top", "bottom", "right", "left", "front", "rear", and the like. Further, in each of the drawings described below, the Z-axis indicates a vertical direction, the X-axis indicates a left-right direction, that is, a lateral direction, and the Y-axis indicates a front-back direction, that is, a depth direction. The X-axis, Y-axis, and Z-axis are orthogonal to each other, the X-axis and the Y-axis are in the horizontal direction, and the Z-axis is in the vertical direction. It should be noted that these names are defined for convenience of explanation, and do not limit the arrangement and orientation of devices, parts, and the like.

The configuration of each part of the lighting device 1 will be described with reference to FIGS. 1 to 11. FIG. 1 is a perspective view of the lighting device 1. FIG. 2 is an exploded perspective view of the lighting device 1 shown in FIG. 1 as viewed from the downward Z2 side. FIG. 3 is an exploded perspective view of the lighting device 1 shown in FIG. 1 as viewed from the upward Z1 side. FIG. 4 is a perspective view of the heat sink portion 13 shown in FIG. FIG. 5 is a perspective view of the base portion 131 shown in FIG. FIG. 6 is a perspective view of the fin portion 132 shown in FIG. FIG. 7 is a plan view seen from the upward Z1 of the heat sink portion 13 shown in FIG. 8 is a perspective view of the connecting portion 14 shown in FIG. 2, FIG. 8A is a perspective view seen from the left X2 side, and FIG. 8B is a perspective view seen from the right X1 side. It is a perspective view. FIG. 9 is a plan view of the top plate portion 15 shown in FIG. 2 as viewed from the upward direction Z1. FIG. 10 is a perspective view seen from the rear Y2 side in a state where the case lid portion 1632 of the power supply device 16 shown in FIG. 2 is removed. FIG. 11 is a perspective view of the arm 20 shown in FIG.

The lighting device 1 includes a light source unit 10, an arm 20 attached to a mounted portion, and a connecting member 30 connecting the light source unit 10 and the arm 20. In the lighting device 1, the light source unit 10 is rotatably held by the arm 200 in the depth direction Y by the connecting member 30.

The light source unit 10 includes a light emitting unit 11, a cover unit 12, a heat sink unit 13, a connecting unit 14, a top plate unit 15, and a power supply device 16.

The light emitting unit 11 includes a plurality of light emitting elements 111 and a substrate 112 on which the plurality of light emitting elements 111 are mounted.
The substrate 112 is a flat plate-shaped electronic substrate. A plurality of light emitting elements 11 are mounted on the mounting surface 1121, which is one surface of the mounting board 112. Further, the substrate 112 is provided with a wiring conductor (not shown) for electrically connecting the electrodes of the plurality of light emitting elements 111. Further, a board terminal 113 for power supply is provided on one end side of the board 112. The board terminal 113 is connected to the electric wire portion 60 in order to receive the power supply from the power supply device 16. The board terminal 113 is arranged on the rear side Y2 side of the mounting board 112 in FIG.

The cover portion 12 is made of a transparent material and protects the light emitting portion 11. The cover portion 12 is attached to the base portion 13 so as to cover the light emitting portion 11.
The cover portion 12 has a box-shaped cover main portion 121 that opens on the Z1 side in the upward direction, and a cover flange portion 122 that protrudes in the horizontal direction XY from the peripheral portion of the opening of the cover main portion 121. The cover flange portion 13b is formed with a cover through hole 123 for fixing the cover portion 12 to the base portion 13.
The cover unit 12 may be provided with a lens (not shown) that controls the light from the light emitting element 111 to a predetermined light distribution on the surface of the cover main unit 121 facing the light emitting unit 110.

The heat sink portion 13 is to which the light emitting portion 11 is attached. The heat sink unit 13 transfers heat generated when the light emitting unit 11 emits light, and dissipates the transferred heat.
The heat sink portion 13 has a base portion 131 and a fin portion 132. The heat sink portion 13 is formed by processing a plate-shaped metal member into a base portion 131 and a fin portion 132. The metal member is, for example, iron, stainless steel, or aluminum. By using aluminum, the metal member can be made lighter than iron or stainless steel, and heat dissipation can be improved.

The base portion 131 has a base main portion 1311 and a base flange portion 1312. The base portion 13 is formed by bending a plate material such as aluminum, which has good heat dissipation and is lighter than iron, by press working or the like.

A light emitting unit 110 is attached to the base main unit 1311. The base main portion 1311 is formed by forming a plate-shaped metal member into a rectangular shape.
The base main portion 1311 is a light source mounting portion 1311a in which one of the plate-shaped surfaces holds the light emitting portion 11. The light source mounting portion 1311a is mounted so that the surface of the mounting board 112 opposite to the mounting surface 1121 is in contact with the mounting surface 1121. Further, the base main portion 1311 is the other surface of the plate shape, and the surface of the base main portion 1311 opposite to the light source mounting portion 1311a is the fin mounting portion 1311b to which the fin portion 132 is mounted.
The base main portion 1311 is provided with a base wire insertion portion 1311c. The base wire insertion portion 1311c is an opening that penetrates the base main portion 1311 in the vertical direction Z, through which the wire portion 60 is inserted. The base wire insertion portion 1311c is provided so as to be adjacent to the end portion of the light emitting portion 11 on the side where the substrate terminal 113 is arranged in a state where the light emitting portion 11 is arranged on the base main portion 131. In FIG. 5, the base wire insertion portion 1313 is provided on the rear Y2 side.

The base flange portion 1312 is a portion protruding from each side of the base main portion 1311 toward the Z2 side in the downward direction. The base flange portion 1312 is provided so as to be orthogonal to the base main portion 1311 and reinforces the rigidity of the base main portion 1311.
The base collar portion 1312 has a collar main body portion 1312a and a fitting portion 1312b. Two flange body portions 1312a are arranged with a gap on one side of the base main portion 1311. The fitting portion 1312b is a portion between the two flange main body portions 1312a, and a part of the connecting portion 14 is fitted.
Further, since the base flange portion 1312 protrudes toward the downward Z2 side, it is possible to suppress the accumulation of dust or water in the base main portion 131 as compared with the case where the base flange portion 1312 protrudes toward the upward Z1 side.

A plurality of fin portions 132 are arranged on the fin mounting portion 1311b of the base portion 131 so as to form a spiral around the base central portion 1310, which is the center of the fin mounting portion 1311b. It has a heat radiation fin 1322 and a second heat radiation fin 1323. The first heat radiation fin 1322 and the second heat radiation fin 1323 are formed in a plate shape, and project upward Z1 so as to be orthogonal to the base main portion 1311. The first heat radiation fin 1322 and the second heat radiation fin 1323 may be generally described as heat radiation fins.
The fin portion 132 is arranged in a circumferential shape around the central portion 1310 of the base, and is arranged so as to intersect a straight line extending in the radial direction from the central portion 1310 of the base. The fin portion 132 is not arranged on the base central portion 1310 side of the fin mounting portion 1311b, and a space is provided on the upward Z2 side of the base central portion 1310 side on which the fin portion 132 is not arranged.
The plurality of fin portions 132 are arranged at intervals from the adjacent fin portions 132. The plurality of fin portions 132 are arranged at intervals from each of the fin portions 132 facing each other with the radial center interposed therebetween and the plate-shaped surfaces of the fin portions 132 facing each other in the horizontal direction XY. There is. When explaining the shape of the fin portion 132, the side opposite to the base central portion 1310 side will be described as the outer peripheral portion.

The fin fixing portion 1321 is formed in a rectangular shape, and is fixed to the fin mounting portion 1311b by fixing means such as screwing or caulking.

The first heat radiating fin 1322 and the second heat radiating fin 1323 are provided so as to project upward from the facing side portions of the fin fixing portion 1321 in the upward direction Z1.
The first radiating fins 1322 and the second fins 1323 are formed so that the length L2 of the second radiating fins 1323 is shorter than the length L1 of the first radiating fins 1322 in the horizontal direction XY. By forming the length L2 of the second heat radiation fin 1323 shorter than the length L1 of the first heat radiation fin 1322, when the fin portion 132 is arranged on the base portion 131, the fin portions adjacent to each other in the circumferential direction The distance on the 1310 side of the central portion of the base can be widened. Therefore, a sufficient air flow path can be secured on the 1310 side of the central portion of the base.

Further, the fin portion 132 is provided with a fin convex portion 1324 on the first heat radiation fin 1322. Further, the first heat radiation fin 1322 and the second heat radiation fin 1323 are provided with fin recesses 1325.
The fin convex portion 1324 is inserted into a part of the top plate portion 15, and is provided so as to project upward from the side portion 1323a on the upward Z2 side of the first heat radiation fin 1322 to the upward Z1 side. .. The fin convex portion 1323 is provided so as to be arranged in a circumferential shape centered on the base central portion 1310 when a plurality of fin portions 132 are arranged on the base portion 131. The plurality of fin convex portions 1324 are arranged in a circumferential shape centered on the base central portion 1310 in the range surrounded by the dotted line A shown in FIG.
The fin recess 1325 is provided so as to be recessed downward from each of the side portion 1322a on the upward Z2 side of the first heat radiation fin 1322 and the side portion 1323a on the upward Z2 side of the second heat radiation fin 1323. The fin recesses 1324 are provided so as to be arranged in a circumferential shape around the central portion 1310 of the base when a plurality of fin portions 132 are arranged in the base portion 131. The plurality of fin recesses 1325 are arranged in a circumferential shape centered on the base central portion 1310 in the range surrounded by the dotted line B shown in FIG.

The connecting portion 14 connects the heat sink portion 13 and the top plate portion 15, and is arranged so as to face each other in the width direction X and the depth direction Y of the light source unit 10. The connecting portion 14 has a pillar portion 141, a pillar side portion 142, a base fixing portion 143, a cover holding portion 144, and a top plate fixing portion 145.
Further, the connecting portion 14 has a length from the base fixing portion 143 to the top plate fixing portion 145 in the vertical direction XY, and when the top plate portion 15 is attached to the connecting portion 14, the fin convex portion 1324 becomes the top plate portion 15. It is formed so as not to protrude more.
The connecting portion 14 is made of a metal member having a higher strength than the base portion 12 such as iron or stainless steel.

The pillar portion 141 has a rectangular plate shape, and is provided so as to project upward from the base main portion 131 toward the Z1 side.
The pillar portion 141 has a pillar connecting portion 1411 to which the connecting member 30 is connected. The pillar connecting portion 1411 is provided so as to project from the right direction X1 side outside the pillar main portion 141 toward the left direction 2 inside the pillar main portion 141 in FIG. 8, and has an opening so as to penetrate in the width direction X. Have. A spiral groove is formed on the inner surface of the opening of the column connecting portion 1411, and the connecting member 30 is screwed and attached.

The pillar side portions 142 are formed on both sides of the pillar main portion 141 in the depth direction Y, and project from the outside on the right X1 side to the inside on the left X2 in FIG.

The base fixing portion 143 is formed on the side side of the pillar portion 141 on the downward Y2 side. Like the pillar side portion 142, the base fixing portion 143 projects from the outside on the right X1 side to the inside on the left X2 in FIG. The base fixing portion 143 is provided with a connecting portion fixing portion 1431 penetrating in the vertical direction Y. The connecting portion fixing portion 1431 has a spiral groove on the inner surface thereof, and is a cover fixing member having a screw shape. The 40 is inserted into and screwed into the cover through hole 123 and the base through hole 123 from the downward direction Z1, and the cover portion 12, the base portion 13, and the connecting portion 14 are connected so as to be integrated.

The cover holding portion 144 is provided so as to project from the side side of the column main portion 141 in the downward direction Z2 toward the downward Z2 side of the base fixing portion 143. The cover holding portion 144 has a holding vertical portion 1441 and a holding horizontal portion 1442.
The holding vertical portion 1441 protrudes downward from the base fixing portion 143 to the Z2 side, and is fitted into the fitting portion 1322.
The holding horizontal portion 1442 protrudes from the end portion on the downward Z2 side of the holding vertical portion 1441 to the inside which is the left direction X2 from the outside which is the right direction X1 side in FIG. The holding vertical portion 1442 is arranged on the downward Y2 side of the cover flange portion 122 in a state where the cover portion 12 and the connecting portion 14 are attached to the base portion 13, and suppresses the fall of the cover portion 12.

The top plate mounting portion 145 is formed on the side side of the pillar portion 141 on the upward Y2 side. The top plate mounting portion 145 projects from the outside on the right X1 side to the inside on the left X2 in FIG. 8, similarly to the pillar side portion 142 and the base fixing portion 143. The top plate mounting portion 145 is provided with a top plate portion fixing portion 1451 penetrating in the vertical direction Y. The top plate portion fixing portion 1451 has a spiral groove formed on the inner surface thereof and has a screw shape. The top plate fixing member 50 is screwed from the upward direction Z1, and the top plate portion 15 is connected to the connecting portion 14.

The top plate portion 15 is provided so that dust and the like do not collect on the heat sink portion 13, and has a top plate main portion 151 and a top plate connecting portion 152. The top plate portion 15 has good heat dissipation such as aluminum, and is formed by pressing a plate material made of a lighter material such as iron.

The top plate main portion 151 is formed in a circular shape, and is provided so as to cover the side side of the fin portion 132 on the upward Z1 side. The top plate main portion 151 is provided with a top plate opening portion 1511 into which the fin convex portion 1324 is inserted. The top plate opening 1511 is formed in an elliptical shape, and is formed so that a plurality of fin protrusions 1324 can be inserted. A plurality of top plate openings 1511 are provided in a circumferential shape centered on the top plate central portion 150 facing the base portion central portion 1310 of the top plate main portion 151 in the vertical direction Z. The top plate opening 1511 is formed in an elliptical shape along the circumference.

The top plate connecting portion 152 is a portion for fixing the top plate portion 15 to the connecting portion 14, and is provided so as to project from the side surface of the top plate main portion 151 in the horizontal direction XY. The top plate connecting portion 152 projects in the width direction X, the depth direction Y, and the pair so as to correspond to the connecting portion 14. The top plate connecting portion 152 is provided with a top plate through hole 1521 provided so as to penetrate in the vertical direction Z. Further, of the four top plate connecting portions 152, the top plate connecting portion 152 in the rear direction Y2 is cut out in a long shape from the side portion on the rear direction Y2 side toward the top plate center portion 150. A notch 1522 is provided.

The power supply device 16 converts the electric power supplied from the outside to control the lighting of the light emitting unit 11, and is fixed to the connecting unit 13 so as to be mounted on the top plate unit 14. The power supply device 16 is formed to be shorter than the base portion 13 in the width direction X, and has the same length as the base portion 13 in the depth direction Y. It is arranged along the depth direction Y so as to be orthogonal to the arm 20. The power supply device 16 includes a lighting circuit 161, a terminal block 162, a power supply case 163, a terminal block case 164, and a signal connector 165.

The lighting circuit 161 is a circuit for supplying electric power to the light emitting unit 11, and an electronic element such as a capacitor is mounted on a plate-shaped power supply board 1611 having a long shape. The lighting circuit 161 is a power conversion circuit that converts power supplied from an external power source such as a commercial power source into a direct current required for the light emitting unit 11 to light, and power conversion based on a signal sent from the signal connector 165. It has a control circuit that controls the circuit. The power conversion circuit is composed of, for example, a full-wave rectifier, a step-up chopper circuit, a step-down chopper circuit, and the like. The control circuit acquires operation information related to dimming input from an operation terminal or the like that accepts user operations, and controls the power conversion circuit according to the acquired operation information to dimm the light emitted from the light emitting element 10. ..
The lighting circuit 161 has an input connector 1612 and an output connector 1613 on the power supply board 1611. The input connector 1612 is arranged on the terminal block 162 side of the power supply board 1611, and the internal electric wire 1614 connected to the terminal block 162 is connected to the input connector 1612. The input connector 1612 inputs commercial power supplied via the internal electric wire 1614 to the power conversion circuit.
The output connector 1613 is arranged at the end of the power supply board 1611 opposite to the input connector 161 in the depth direction Y. The output connector 1613 is to which the electric wire portion 60 is connected, and outputs the electric power controlled by the power conversion circuit and the control circuit.

The terminal block 162 is fixed to a power supply line (not shown) electrically connected to a commercial power supply, and is arranged on one end side of the power supply device 16 in the depth direction Y and on the front direction Y1 side in FIG. There is.
The terminal block 162 is provided with a power line insertion port 1621, and the power line is fixed by inserting the end of the power line into the power line insertion port 1621. The terminal block 162 and the lighting circuit 161 are electrically connected, and the lighting circuit 161 and the external power supply are electrically connected via the terminal block 162 and the power line. The terminal block 162 is arranged so that the power line insertion port 1621 faces the front direction Y1 side in the depth direction Y in FIG.

The power supply case 163 is a metal case that covers the lighting circuit 161 and has a case main portion 1631 and a case lid portion 1632.
The case main portion 1631 is formed in a long shape along the depth direction Y, and a terminal block mounting portion 1631a for holding the terminal block 162 is provided on the front direction Y1 side, which is one end side of the depth direction Y, and has a depth. A case notch 1631b through which the electric wire portion 60 is inserted is provided on the rear side Y2 side, which is the other end side of the direction Y. The case notch portion 1631b is provided in FIG. 10 so as to open in a long length from the end of the rearward Y2 portion in the depth direction Y along the depth direction Y, and the electric wire portion 60 is inserted and hooked from the rearward direction Y2. be able to.
The case lid portion 1632 is provided so as to cover the lighting circuit portion 161 from the upward Z1 side, and suppresses the accumulation of dust or water in the lighting circuit 162.

The terminal block case 164 is a metal case that covers the terminal block 162, and the terminal block 162 is rotatably attached to the case lid portion 1632 so that the power line insertion port 1621 can be exposed. The terminal block case 164 is formed with a notch so that the power line fixed to the terminal block 162 can be pulled out from the downward Y2 side.

The signal connector 165 is for inserting a signal line for receiving a signal from a functional component such as a communication unit or a sensor (not shown), and outputs the received signal to the lighting circuit unit 161 by the internal signal line 1651. Is.
In FIG. 1, the signal connector 165 is arranged on one end side in the depth direction Y of the power supply device 16 and on the Y1 side in the front direction.

A method of attaching to the top plate portion 15 and the connecting portion 14 of the power supply device 16 will be described.
The top plate portion 15 is arranged so as to cover the fin portion 132 of the heat sink portion 13 from the upward Z1 side. At this time, the top plate connecting portion 152 is placed on the top plate mounting portion 145 of the connecting portion 14, and the top plate through hole 1521 and the top plate fixing portion 1451 communicate with each other, and the top plate fixing member 50 is connected from the upward Z1 side. Is inserted into the top plate through hole 1521 and screwed into the top plate portion fixing portion 1451, whereby the top plate portion 15 is fixed to the connecting portion 14.
In the top plate portion 15, the fin convex portion 1324 of the fin portion 132 is inserted into the top plate opening portion 1511. By inserting the fin convex portion 1324 arranged in a circumferential shape into the top plate portion 15, unintended movement in the horizontal direction XY is suppressed. Therefore, when the top plate fixing member 50 is screwed into the connecting portion 14, it does not move unintentionally and can be easily assembled. Further, since the top plate opening portion 1511 has an elliptical shape, a plurality of fin convex portions 1324 can be inserted. Therefore, it is easier to align the positions and to assemble than if the top plate openings are individually provided for the plurality of fin protrusions 1324.

The power supply device 16 is placed on the top plate portion 15 so that the depth direction Y is in the longitudinal direction, and is fixed to the connecting portion 14. At this time, the fin convex portion 1324 is arranged so as not to project upward from the top plate portion 15 in the upward direction Z1, so that the plate-shaped case main portion 1631 of the power supply device 16 closes the top plate opening portion 1511. It is placed on the top plate portion 15. Therefore, it is possible to prevent dust and the like from entering the heat sink portion 13 side from the top plate opening portion 1511.

The arm 20 is a member for fixing the lighting device 1 to the attached portion, and improves the strength of the arm main portion 21 that abuts on the attached portion, the arm support portion 22 that holds the light source unit 10, and the arm 20. It has an arm flange portion 23 to be used. The arm 20 is integrally formed by processing each portion of the arm main portion 21 and the arm support portion 22 by processing a plate-shaped metal member, and is formed of a strong metal member such as iron or stainless steel.
The arm 20 has an arm main portion 21 formed so as to extend in the width direction X, an arm support portion 22 formed so as to extend downward from the arm main portion 21 toward Z2, and both sides of the arm 10 in the depth direction Y. It has an arm flange portion 23 provided in the above.

The arm main portion 21 is formed in a rectangular shape long in the width direction X, and is provided with a pair of main portion through holes 211 into which a hanging bolt, which is a fixing bracket, is inserted.
The main through hole 211 is provided at a position facing the base portion 13 when the arm 20 is attached to the light source unit.
The main through hole 211 has a first main through hole 2111 and a second main through hole 2112. The first arm main portion through hole 2111 is formed on the right side X1 side of the center of the arm main portion 21 in the width direction X. The first main through hole 2111 has a shape in which an elongated hole extending in the width direction X and a circular hole are combined.
In the second arm main through hole 2112, the second main through hole 2112 is formed on the left side X2 side of the center in the depth direction X of the arm base 21. The second main through hole 2112 is an elongated hole extending in the depth direction Y.
The lighting device 1 is fixed to the attached portion by inserting the hanging bolt into the main portion through hole 211 and sandwiching the arm main portion 21 between the attached portion and the nut screwed with the hanging bolt. Although the first main through hole 2111 and the second main through hole 2112 have different shapes, they may have the same shape.

The arm support portions 22 are formed so as to project in pairs from both ends of the arm main portion 21 in the width direction X toward the downward Z2.
The arm support portion 22 projects in a plate shape from the end portion of the arm main portion 2 in the width direction X toward the downward Z2. The arm support portion 22 has an arm bending portion 221, an arm vertical portion 222, and an arm connecting portion 223 in this order from the upward Z1 side to the downward Z2 side.

The arm bending portion 221 protrudes in the width direction X from the end of the arm main portion 21 on the width direction X side so as to be separated from the arm main portion 210, and protrudes so as to draw an arc toward the downward Z2 as it protrudes in the width direction X. This is the place where it is set up.
The arm bending portion 221 extends from the arm main portion 21 in the width direction X, extends from the arm vertical portion 222 in the vertical direction Z, and forms an arc-shaped intersection.
The arm bending portion 221 is provided with a bending portion through hole 2211 penetrating in a rectangular shape on the end side on the Z1 side in the upward direction. The bent portion through hole 2211 is attached to the attached portion by a fixing bracket inserted from the width direction X.

The arm vertical portion 222 is a portion protruding from the end portion on the downward Z2 side of the arm bending portion 221 toward the downward Z2, and is provided so as to connect the arm bending portion 221 and the arm connecting portion 223. There is.

The arm connecting portion 223 is a portion protruding from the end portion of the arm vertical portion 222 on the downward Z2 side toward the downward Z2, and is provided with an arm insertion hole 2231 having a round hole shape.
The arm connecting portion 223 is a portion connected to the connecting portion 14 of the light source unit 10 by the connecting member 300. The arm connecting portion 223 is abutted against and connected to the pillar main portion 141 of the connecting portion 14 by fastening the connecting member 300 to the pillar connecting portion 1411 in a state of being inserted into the arm insertion hole 2231.
The arm connecting portion 223 is provided so as to project downward from the base main portion 131 toward the Z2 side and abut against the base flange portion 132 in a state where the arm is attached to the light source unit 10.

The arm flange portion 23 improves the strength of the arm 20, and is integrated so as to project inward in the width direction X from the side side of the arm support portion 22, the arm bending portion 221 and the arm vertical portion 222 in the depth direction Y. It is provided in.
The arm flange portion 23 suppresses the arm 20 from being deformed so as to be twisted in the horizontal direction XY. In the arm flange portion 23, when the light source unit 10 is attached to the arm 20 and the light source unit 20 tries to swing in the width direction X due to an external load such as vibration, the arm 20 moves in the width direction X. It is possible to suppress deformation. In particular, the portion of the arm flange portion 23 protruding from the arm bending portion 221 serves as a brace between the arm support portion 22 and the arm vertical portion 222, and the deformation of the arm 20 can be suppressed.

The arm 20 is held by the arm support portions 22 provided in pairs so as to sandwich the light source unit 10 in the width direction X. The arm 20 holds the light source unit 20 so as not to rotate by tightening the connecting member 30 to the connecting portion 1411 so that the arm connecting portion 223 presses the pillar main portion 1411 of the first connecting portion 1401. Then, the arm 20 holds the light source unit 20 so that it can rotate in the depth direction Y by loosening the tightening of the connecting portion 1411 of the connecting member 30.

The connecting member 30 has a bolt shape including a cylindrical screw portion 310 and a head portion 320 provided on one end side of the screw portion 310.
The threaded portion 310 has a cylindrical shape and is threaded on the outer circumference, and is fastened to the connecting portion 1413.
The head 320 has a hexagonal column shape formed larger than the diameter of the screw portion 310. The head 320 presses the arm connection portion 223 against the pillar main portion 1411 on the surface on the screw portion 320 side by tightening the screw portion 310 to the connection portion 1413.
The head 320 may have a polygonal pillar shape instead of a hexagonal medium shape, or may be provided with a recess into which a tool such as a screwdriver can be inserted.
Further, the connecting member 30 may have the head 320 press the pillar main portion 144 via a washer or the like.

In the present disclosure, the lighting device 1 includes a fin convex portion 1324 in which the heat sink portion 13 of the light source unit 10 further protrudes from the side portion on the upward Z1 side of the fin portion 132, and is arranged so as to cover the fin portion 132. Since the top plate opening 1511 is provided so that the top plate portion 15 to be provided corresponds to the fin convex portion 1324, the top plate portion 15 moves unintentionally when the top plate portion 15 is attached. It can be prevented from being lost and can be easily assembled.

Further, in the present disclosure, in the lighting device 1, the fin convex portion 132 is provided in a circumferential shape around the base central portion 1310 of the base portion 13, and the top plate opening portion 1511 is vertically Z with the base central portion 1310. It is arranged in a circumferential shape around the central portion 150 of the top plate facing each other. Therefore, the fin convex portion 1324 and the top plate opening portion 1511 are fitted in the circumferential direction, and the top plate portion 15 can be suppressed from moving in the horizontal direction XY.

Further, in the present disclosure, the lighting device 1 is placed on the top plate 15 so that the power supply device 16 covers the top plate opening 1511 from the upward Z1 side. Therefore, it is possible to prevent dust such as dust from accumulating in the heat sink portion 13 from the top plate opening portion 1511.

In the present disclosure, the heat sink portion 13 has a shape in which the fin portion 132 is arranged in a vortex shape with respect to the base central portion 1310, but the heat sink portion 13 may be arranged radially with respect to the base central portion 1310. , The shape may be arranged so as to be juxtaposed in the width direction X and the depth direction Y.

Embodiment 2.
Next, the light source unit 70 of the second embodiment will be described with reference to FIGS. 12 to 14. FIG. 12 is a perspective view of the fin protection portion 71. FIG. 13 is a perspective view showing a state in which the fin protection portion 71 is attached to the heat sink portion 13. FIG. 14 is a reference cross-sectional view showing a state in which the fin protection portion 71 is sandwiched between the heat sink portion 13 and the top plate portion 15.

The light source unit 70 of the present embodiment includes a fin protection unit 71. The fin protection portion 71 suppresses the movement of the first heat radiation fin 1322 and the second heat radiation fin 1323.
The light source unit 70 of the second embodiment is the one to which the fin protection portion 71 of the light source unit 10 of the lighting device 1 of the first embodiment is added, and the items not particularly described in the light source unit 70 are the embodiment. Same as the lighting fixture 1 according to No. 1, and the same function and configuration will be described using the same reference numerals.

The fin protection portion 71 is formed of a member having an elastic force in a ring shape, and suppresses the upward Z1 side of the fin portion 132 from moving due to an external load such as wind or vibration.
The fin protection portion 71 is formed so that the size of the ring-shaped horizontal XY is the same as the circular shape of the fin recess 1325 formed in a circumferential shape with the central portion 1310 of the base as the center. Further, the length of the fin protection portion 71 in the vertical direction Z is formed to be larger than the length of the fin recess 1325 in the vertical direction Z.
The member having an elastic force forming the fin protection portion 71 is, for example, foamed silicon or the like.

As shown in FIG. 14, the fin protection portion 71 is arranged so as to be accommodated in the fin recess 1325 from the upward Z1 side, and is sandwiched and held between the fin recess 1325 and the top plate portion 15 so as to be pressed. There is.
Therefore, one end of the first heat radiation fin 1322 and the second heat radiation fin 1323 is fixed to the base portion 131, and the other end portion is held by the top plate portion 15 via the fin protection portion 71. Even if the lighting fixture 1 is subjected to an external load such as wind or vibration, it is possible to suppress the movement of the first heat radiation fin 1322 and the second heat radiation fin 1323 on the upward Z1 side.
Further, since the movement of the first heat radiation fin 1322 and the second heat radiation fin 1323 on the upward Z1 side can be suppressed, the movement to the first heat radiation fin 1322 and the second heat radiation fin 1323 due to the deformation accompanying the movement can be suppressed. The load can be suppressed and the damage to the fin portion 132 can be suppressed.

In the present disclosure, the light source unit 70 has a fin protection portion 71, and since the fin portion 132 is provided with the fin recess 1325, the fin protection portion 71 can be arranged so as to be accommodated in the fin recess 1325. , The fin protection portion 71 can be assembled without unintentional movement in the horizontal direction XY, and workability can be improved.

Embodiment 3
Next, the lighting device 80 of the third embodiment will be described with reference to FIGS. 15 to 22. FIG. 15 is a perspective view of the lighting device 80. FIG. 16 is an exploded perspective view of the lighting device 80 shown in FIG. 15 as viewed from the downward Z2 side. FIG. 17 is an exploded perspective view of the lighting device 80 shown in FIG. 15 as viewed from the upward Z1 side. 18 is a perspective view of the frame portion 82 shown in FIG. 16, FIG. 16A is a perspective view seen from the left direction X2 side, and FIG. 16B is a perspective view seen from the right direction X1 side. It is a figure. 19 is a detailed view of the wiring cover portion 83 shown in FIG. 16, FIG. 19A is a perspective view, and FIG. 19B is a side view seen from the right X1 side. FIG. 20 is a perspective view of the top plate portion 84 shown in FIG. FIG. 21 is a partial perspective view of the lighting device 80 with the terminal block cover 164 removed. FIG. 22 is a cross-sectional view taken along the C-C'of the lighting device 80 shown in FIG. 16 and cut along a plane orthogonal to the Y-axis and the Z-axis.

The lighting device 80 of the present embodiment includes two light source units 81 including a light emitting unit 11, a cover unit 12, and a heat sink unit 13, and the lighting device 80 including the two light source units 81 can be easily assembled. It can be done.

The lighting device 80 includes a light source section 81 including a light emitting section 11, a cover section 12, and a heat sink section 13, a connecting section 14, a frame section 82, a wiring cover section 83, a top plate section 84, a power supply device 85, and an arm 20. Have.
The lighting device 80 has two light source units 81 so as to be a pair, and the two light source units 81 are arranged so as to be adjacent to each other in the depth direction Y at intervals. This interval will be described as space 801.

The frame portion 82 connects the two light source portions 81 and the top plate 84 on both sides in the width direction X, and connects the connecting base fixing portion 821, the cover holding portion 822, the frame pillar portion 823, and the connecting top plate. It is provided with a unit 824.
The connecting portion 14 uses a metal member having a higher strength than the base portion 12 such as iron or stainless steel.

The connecting base fixing portion 821 is formed in a long rectangular shape in the depth direction Y, and the connecting portion fixing portions 8211 are provided on both ends of the depth direction Y. The connecting portion fixing portion 8211 penetrates in the vertical direction Y, and a groove having a spiral inner surface is formed.
The cover fixing member 40 having a screw shape is inserted into the cover through hole 123 and the base through hole 123 from the downward direction Z1 and screwed into the connecting portion fixing portion 8211 so that the light source portion 81 is integrated with the frame portion 82. It is attached.
The connecting base fixing portion 821 is provided with two connecting portion fixing portions 8211, and the two connecting portion fixing portions 8211 have two light source units 81 in the depth direction Y with the light source portion 81 attached to each of the two connecting portion fixing portions 8211. It is arranged so as to provide a gap.

The cover holding portion 822 is provided so as to project downward from the connecting base fixing portion 821 to the Z2 side. The cover holding portion 822 has a holding vertical portion 8221 and a holding horizontal portion 8222. Two cover holding portions 822 are provided along the depth direction Y, and are arranged so as to be fitted into each of the fitting portions 1322 of the two light source portions 11.
The holding vertical portion 8221 projects downward from the longitudinal side of the connecting base fixing portion 821 to the Z2 side in the downward direction, and is fitted into the fitting portion 1322.
The holding horizontal portion 8222 protrudes from the end of the holding vertical portion 8221 on the downward Z2 side so as to face the connecting base fixing portion 821. The holding vertical portion 8222 is arranged on the downward Y2 side of the cover flange portion 122 in a state where the light source portion 81 is attached to the frame portion 82, and suppresses the fall of the cover portion 12.

The frame pillar portion 823 is provided so as to project upward from the connection base fixing portion 821 to the Z1 side in the upward direction, and has a connection pillar portion 8231, a support pillar portion 8232, and a component mounting pillar portion 8233.

The pillar central portion 8231 is provided near the center of the frame portion 82 in the depth direction Y, and the arm 20 is attached by the connecting portion 30. The pillar central portion 831 is formed in a rectangular shape, and has a pillar connecting portion 8231a to which the connecting member 30 is connected. The pillar connecting portion 8311 is provided so as to project from the right direction X1 side which is the outside of the pillar center portion 8231 toward the left direction 2 which is the inside in FIG. 18, and has an opening so as to penetrate in the width direction X. Have. A spiral groove is formed on the inner surface of the opening of the column connecting portion 8231a, and the connecting member 30 is screwed and attached.

The support pillar portions 8232 are provided on both ends of the frame portion 82 in the depth direction Y, and are provided so as to connect the base portion 13 and the top plate 83.

The component mounting column 8233 is provided between the column center 8231 and the support column 832 on one side in the depth direction Y, and is provided with a component mounting hole 8233a to which functional components such as communication units and sensors (not shown) are mounted. Has been done.

The connecting top plate fixing portion 824 projects so as to face the connecting base fixing portion 821 from the upward Z1 side of the frame pillar portion 823. The connecting top plate fixing portion 824 has a long rectangular shape in the depth direction Y, and the top plate portion fixing portions 8241 are provided on both ends of the depth direction Y.
The top plate portion fixing portion 8241 penetrates in the vertical direction Y, and a groove having a spiral inner surface is formed. In the top plate fixing portion 8241, a screw-shaped top plate fixing member 50 is screwed from the upward direction Z1, and the top plate portion 84 is attached to the frame portion 82.

The wiring cover portion 83 is provided between the two light source portions 81 in the depth direction Y, and covers the space 801 of the two light source units arranged side by side at intervals. In the wiring cover portion 83, the length L4 in the width direction X is shorter than the length L3 in the width direction X of the space 801. It is formed to cover from the side.
The wiring cover portion 83 has a cover receiving portion 841 and a cover hooking portion 842, and is attached to the light source portion 81 so as to sandwich the cover flange portion 122 and the base main portion 1311.

The cover receiving portion 831 covers the cover flange portion 122 facing the space 801 from the downward Z2 side, and is formed so as to have an H shape in a plan view from the downward Z2 side.

The cover hooking portion 832 is hooked on the fin mounting portion 1311b of the base main portion 1311, and has a hooking vertical portion 8321 and a hooking horizontal portion 8322.
The catching vertical portion 8321 is provided so as to project toward the upward Z1 side of the cover receiving portion 831.
The hooked horizontal portion 8322 is provided so as to project from the upward Z1 side of the hooked vertical portion 8321 so as to face the cover receiving portion 831. The hooked horizontal portion 8322 is provided with a wiring cover fixing hole 8323. The wiring cover fixing hole 8323 penetrates in the vertical direction Z, and a groove having a spiral inner surface is formed.

The wiring cover portion 83 is inserted so as to sandwich the cover flange portion 122 and the base main portion 1311 from the Z side in the width direction in a state where the two light source units 81 are attached to the frame portion 82, whereby the two light source units 81 are inserted. It is caught by and the movement in the vertical direction Y is suppressed. In this state, the wiring cover portion 83 is arranged so that the wiring cover fixing hole 8323 is continuous with the cover through hole 123 and the base through hole 123 in the vertical direction Z, and the cover fixing member 40 is arranged from the downward Z1 to the cover through hole 123. And by being inserted into the base through hole 123 and screwed into the wiring cover fixing hole 8323, it is attached to the light source portion 81 so as to be integrated.

The wiring cover portion 83 is provided with a cover receiving portion 841 and a cover hooking portion 842 so as to sandwich the cover flange portion 122 and the base portion 131 of the light source portion 81.
Therefore, after the light source portion 81 is inserted between one cover receiving portion 841 and the cover hooking portion 842 in the depth direction Y, the light source portion 81 is inserted and attached between the other cover receiving portion 841 and the cover hooking portion 842. Even so, by holding the cover flange portion 122 and the base portion 131 in the vertical direction Z, it is possible to prevent the wiring cover portion 823 from unintentionally moving in the vertical direction Z, and the wiring cover portion 823. Can be easily installed.

The wiring cover portion 823 can be inserted into the space 801 so as to be hooked on the two light source units 81. Therefore, the wiring cover portion 823 is prevented from unintentionally moving in the vertical direction Z, and the wiring cover portion 823 can be easily attached.

The wiring cover portion 823 is arranged on the downward Z2 side of the cover receiving portion 831, and can prevent the cover portion 12 from unintentionally falling.

The wiring cover portion 83 is attached to the light source portion 81 without blocking the space 801 because the length L4 in the width direction X is formed shorter than the length L3 in the width direction X of the space 801. Therefore, it is possible to suppress the movement of air through the space 801.

By connecting the light source portions 81 provided in pairs by the wiring cover portion 823, the strength can be improved.

The top plate portion 84 is provided so that dust and the like do not collect on the heat sink portion 13, and has a top plate main portion 841 and a top plate connecting portion 842. The top plate portion 15 has good heat dissipation such as aluminum, and is formed by pressing a plate material made of a lighter material such as iron.

The top plate main portion 841 is formed in an elliptical shape so as to cover the two light source portions 81 from the upward Z1 side. The top plate main portion 841 has a top plate opening 8411 and an electric wire opening 8412.
The top plate opening 8411 is arranged in a circumferential shape at two positions of the top plate main portion 841 so as to be adjacent to each other in the depth direction Y so as to correspond to the fin convex portions 1325 of each of the two light source portions 811. ..
The electric wire opening 8412 is formed inside the top plate opening 8411 arranged in a circumferential shape, and is formed in a long elliptical shape along the width direction Z.

The top plate connecting portion 842 is a portion for fixing the top plate portion 84 to the connecting portion 14 and the frame portion 82, and is provided so as to project from the side surface of the top plate main portion 841 in the horizontal direction XY. The top plate connecting portion 842 is provided with a top plate through hole 8421 provided so as to penetrate in the vertical direction Z.
In the top plate portion 84, after the top plate connecting portion 842 is mounted on the top plate mounting portion 1451 and the connecting top plate fixing portion 824, the top plate fixing member 50 is formed in the top plate through hole 1521 from the upward Z1 side. The top plate portion 84 is fixed to the connecting portion 14 and the frame portion 82 by being inserted into the 8421 and screwed into the top plate portion fixing portions 1451 and 8241.

The power supply device 85 converts the electric power supplied from the outside and supplies the electric power so as to control the lighting of the light emitting unit 11 of the two light source units 81 via the electric wire unit 60, and is mounted on the top plate unit 84. It is fixed so that it can be placed. The power supply device 16 is arranged so that the longitudinal direction is along the depth direction Y, and is arranged so as to overlap the two light source portions 81 in the vertical direction Z.
The power supply device 85 includes a lighting circuit 161, a terminal block 162, a power supply case 163, a terminal block case 164, and a signal connector 165. The electric wire portion 60 has a first electric wire portion 61 and a second electric wire portion 61.
The power supply device 85 is one of the two light source units 81 and is electrically connected to the first light source unit 811 arranged on the Y1 side in the front direction via the first electric wire unit 61. The other light source unit 81 is electrically connected to the second light source unit 812 arranged on the rear Y2 side via the second electric wire unit 62.

In the power supply device 85, the terminal block 162 and the signal connector 165 are arranged so as to be arranged in the front direction Y1 of the power supply case 163 and to project toward the right direction X1.
In the power supply device 85, the signal connector 165 projects toward the component mounting column 8233 of the frame portion 82, and is arranged on the component mounting column 8233 side with respect to the connecting column portion 8231 in the depth direction Y. .. Therefore, when a functional component (not shown) is attached to the component mounting column 8233, it is possible to suppress the lengthening of the signal wire (not shown) connecting the signal connector 165 and the functional component.

The power supply device 85 is attached to the top plate portion 84 so that the case main portion 1631 closes the electric wire opening 8412. The power supply device 85 is arranged so that the case notch portion 1631b is on the rear Y2 side.
At this time, the electric wire portion 60 inserted into the case notch portion 1631b from the rear direction Y2 is inserted into the electric wire opening 8412 on the rear direction Y2 side and is arranged inside the second light source portion 812. Since the electric wire opening 8412 is provided so as to be orthogonal to the case notch 1631b, the electric wire portion 60 is suppressed from moving in the horizontal direction XY and is held.

In the electric wire portion 60 inserted through the electric wire opening 8412 on the rear direction Y2 side, the second electric wire portion 62 is connected to the light emitting portion 11 of the second light source portion 812. The first electric wire portion 61 is wired from the second light source portion 812 toward the first light source portion 811. At this time, in the space 801 it is arranged on the upward Z2 side of the wiring cover portion 83. The first electric wire portion 61 and the second wiring portion 62 are wired so as to pass between the plurality of fin portions 132.
Therefore, in the lighting device 80, since the first electric wire portion 61 and the second electric wire portion 62 are inserted through the electric wire opening 8412 on the rear direction Y2 side, the wiring difference work is easier than inserting the first electric wire portion 61 and the second electric wire portion 62 at a plurality of places. It can be easily assembled.
Further, since the first electric wire 61 is arranged on the upward Z1 side of the wiring cover portion 83 when the lighting device 80 is viewed from the downward Z2 side, the first electric wire 61 is covered so as to be hidden. Therefore, it is possible to prevent the first electric wire 61 from affecting the design of the lighting device 80.

In the present disclosure, the lighting device 80 includes a first light source unit 811 and a second light source unit 812, and a first light source unit 811 and a second light source unit 812, which are arranged so as to be adjacent to each other in the depth direction Y. A power supply device arranged so as to overlap the top plate portion 82 arranged so as to cover from the upward Z1 and the first light source portion 811 and the second light source portion 812 on the upward Z1 side of the top plate portion 82. 85, a first electric wire portion 61 that electrically connects the power supply device 85 and the first light source unit 811, and a second electric wire portion 62 that electrically connects the power supply device 85 and the second light source unit 812. The top plate portion 85 is provided with an opening 8412 for electric wires through which both the first electric wire portion 61 and the second electric wire portion 62 are inserted. It is easy and easy to assemble.

In the present disclosure, the lighting device 80 is arranged so that the first light source unit 811 and the second light source unit 812 are spaced apart from each other so as to provide a space 801 in the depth direction Y, and the first light source unit 801 is provided with a space 801. A wiring cover portion 83 is arranged so as to connect the portion 811 and the second light source portion 812, and the wiring cover portion 83 has a cover receiving portion 841 provided so as to sandwich the light source portion 81 in the vertical direction Z and a cover hook. By having the portion 842, it is possible to prevent the wiring cover portion 823 from being unintentionally moved in the vertical direction Z, and the wiring cover portion 823 can be attached. The wiring cover portion 823 can be easily attached.

Further, in the present disclosure, by disposing the electric wire portion 60 on the upward Z1 side of the wiring cover portion 83, it is possible to suppress the electric wire 60 from affecting the design of the lighting device 80.

In the present disclosure, the lighting device 80 has described the configuration including two of the first light source unit 811 and the second light source unit 812, but the lighting device 80 may be configured to include three or more light source units 81. The lighting device 80 includes two or more light source units 81, and has a configuration including two or more electric wire portions connecting the power supply device 85 and the light source unit 81, and at least two or more of the electric wire portions. Workability can be improved if is configured to be inserted into one electric wire opening 8412.

d
Embodiment 4.
Next, the heat sink portion 90 of the fourth embodiment will be described with reference to FIGS. 23 to 28. FIG. 23 is a perspective view showing a state in which the heat sink portion 90 is attached to the top plate portion 92. FIG. 24 is a perspective view of the heat sink portion 90 and the top plate portion 92 shown in FIG. 23 in separate states. FIG. 25 is a perspective view of the fin portion 91 of the heat sink portion 90 shown in FIG. 24. FIG. 26 is a plan view of the heat sink portion 90 shown in FIG. 24. 27 is a plan view of the top plate portion 92 shown in FIG. 24. FIG. 28 is an enlarged detailed view of a portion D shown in FIG. 23.

The heat sink portion 90 suppresses the heat radiation fins 9110 from being damaged by vibration.
The heat sink portion 90 of the fourth embodiment has a different shape of the fin portion 91 and the attached top plate portion 92 from the heat sink portion 13 described in the first embodiment. Items not particularly described in the heat sink unit 90 are the same as those in the heat sink unit 13 of the lighting fixture 1 according to the first embodiment, and the same functions and configurations are described by using the same reference numerals. Further, the heat sink unit 90 can be used for the light source unit 10 and the lighting device 1 in the same manner as the heat sink unit 13.

The heat sink portion 90 shown in FIG. 23 is in a state where the connecting portion 14 and the top plate portion 92 are attached.

The heat sink portion 90 is to which the light emitting portion 11 is attached. The heat sink unit 90 transfers heat generated when the light emitting unit 11 emits light, and dissipates the transferred heat.
The heat sink portion 90 has a base portion 131 and a fin portion 91. The heat sink portion 13 is formed by processing a plate-shaped metal member into a base portion 131 and a fin portion 91. The metal member is, for example, iron, stainless steel, or aluminum. By using aluminum, the metal member can be made lighter than iron or stainless steel, and heat dissipation can be improved.

A plurality of fin portions 91 are arranged on the fin mounting portion 1311b of the base portion 131 so as to form a spiral around the base central portion 1310, which is the center of the fin mounting portion 1311b. It has a heat radiation fin 9112 and a second heat radiation fin 9113. The first heat radiating fins 9112 and the second heat radiating fins 9113 are formed in a plate shape, and project upward Z1 so as to be orthogonal to the base main portion 9111. The first heat radiation fin 9112 and the second heat radiation fin 9113 may be generally described as the heat radiation fin 9110.
The fin portion 91 is arranged in a circumferential shape around the central portion 1310 of the base, and is arranged so as to intersect a straight line extending in the radial direction from the central portion 1310 of the base. The fin portion 91 is not arranged on the base central portion 1310 side of the fin mounting portion 1311b, and a space is provided on the upward Z2 side of the base central portion 1310 side on which the fin portion 91 is not arranged.
The plurality of fin portions 91 are arranged at intervals from the adjacent fin portions 91. The plurality of fin portions 91 are arranged at intervals from each of the fin portions 91 facing each other with the radial center interposed therebetween and the plate-shaped surfaces of the fin portions 91 facing each other in the horizontal direction XY. There is. When explaining the shape of the fin portion 91, the side opposite to the base central portion 1310 side will be described as the outer peripheral portion.

The fin fixing portion 9111 is formed in a rectangular shape, and is fixed to the fin mounting portion 1311b by fixing means such as screwing or caulking.

The first heat radiation fin 9112 and the second heat radiation fin 9113 are provided so as to project upward from the facing side portions of the fin fixing portion 9111 in the upward direction Z1.
The first heat radiation fin 9112 and the second fin 9113 are formed so that the length L4 of the second heat radiation fin 1323 is shorter than the length L3 of the first heat radiation fin 1322 in the horizontal direction XY. By forming the length L4 of the second heat radiation fin 9113 shorter than the length L3 of the first heat radiation fin 9112, when the fin portion 91 is arranged on the base portion 131, the fin portions adjacent to each other in the circumferential direction The distance on the 1310 side of the central portion of the base can be widened. Therefore, the air flow path can be secured on the base central portion 1310 side.

The fin portion 91 is provided with a fin convex portion 9114 on the heat radiation fin 9110. The fin convex portion 9114 is inserted into a part of the top plate portion 92, and is provided so as to project from the side portion 9110a on the upward Z2 side of the heat radiation fin 9110 to the upward Z1 side. The fin convex portion 9114 provided on the first heat radiation fin 9112 is referred to as the first fin convex portion 9114a, and the fin convex portion 9114 provided on the second heat radiation fin 9113 is referred to as the first fin convex portion 9114b.
The fin convex portion 9114 is provided so as to be arranged in a circumferential shape centered on the base central portion 1310 when the plurality of fin portions 91 are arranged on the base portion 131.
The plurality of first fin convex portions 9114a are arranged so as to form a circumference about the central portion 1310 of the base in the range surrounded by the dotted line E shown in FIG. 26.
The plurality of second fin convex portions 9114b are arranged so as to form a circumference about the central portion 1310 of the base in the range surrounded by the dotted line F shown in FIG. 26.

The top plate portion 92 is arranged so as to cover the heat sink portion 90 from the upward Z1 side, and has a top plate main portion 921 and a top plate connecting portion 152. The top plate portion 92 has good heat dissipation such as aluminum, and is formed by pressing a plate material made of a lighter material such as iron.

The top plate main portion 921 is formed in a circular shape and is provided so as to cover the side portion 9110a of the fin portion 91. The top plate main portion 911 is provided with a top plate opening 9211 into which the fin convex portion 9114 is inserted.
The top plate opening 9211 has a first top plate opening 9221a into which the first fin convex portion 9114a is inserted, and a second top plate opening 9221b into which the second fin convex portion 9114b is inserted. is doing.
The first top plate opening 9211a is formed in an elliptical shape, and is formed so that a plurality of first fin protrusions 9114a can be inserted. The second top plate opening 9211b is formed in the shape of a round hole.
A plurality of top plate openings 9211 are provided in a circumferential shape centered on the top plate central portion 920 facing the base portion central portion 1310 of the top plate main portion 921 in the vertical direction Z. The first top plate opening 9114a is formed in an elliptical shape along the circumference. The second top plate opening 9114b is formed at a position separated from the first top plate opening 9114a with respect to the top plate central portion 920.

The above is the description of the configuration of the heat sink portion 90 and the top plate portion 92.
Next, the action of the fin portion 91 on the damage suppression will be described with reference to FIG. 28. FIG. 28 is an enlarged reference perspective view of the portion D shown in FIG. 23.

In the top plate portion 92, the top plate connecting portion 152 is placed on the top plate mounting portion 145, and the top plate fixing member 50 is in a state where the top plate through hole 1521 and the top plate fixing portion 1451 are in communication with each other from the Z1 side in the upward direction. Is inserted into the top plate through hole 1521 and screwed into the top plate portion fixing portion 1451 to be fixed to the heat sink portion 91.
At this time, the fin convex portion 9114 is inserted into the top plate opening portion 9211. The first fin convex portion 9114a is inserted into the first top plate opening 9211a, and the second fin convex portion 9114b is inserted into the second top plate opening 9211b.

The heat sink portion 90 may unintentionally vibrate due to an external load or air flowing between the plurality of heat radiation fins 9110. At this time, it is conceivable that the heat radiation fin 1320 vibrates so that the upward Z1 side rotates about the downward Z2 side connected to the fin fixing portion 1321. Due to this vibration, the heat radiating fin 1320 may be damaged due to a load due to the vibration on the downward Z2 side which is the axis of the vibration.

The heat sink portion 90 suppresses the heat radiation fin 9110 from unintentionally moving due to vibration by inserting the fin convex portion 9114 into the top plate opening 9211.
The end of the fin convex portion 9114 inserted into the top plate opening 9211 comes into contact with the edge of the opening of the top plate opening 9211 when the heat radiation fin 9110 tries to vibrate. In the heat radiating fin 9110, the end portion of the fin convex portion 9114 abuts on the end portion of the top plate opening 9211, so that the Z1 side in the upward direction is held by the top plate 92. Therefore, the heat radiation fin 911 can suppress the upward movement of the Z1 side unintentionally, and can suppress damage due to the load of vibration.

The relationship between the sizes of the fin convex portion 9114 and the top plate opening 9211 is that when the fin convex portion 9114 is inserted into the top plate opening 9211, a gap is formed without contacting the fin convex portion 9114, and heat is dissipated. When the fin 9110 vibrates, the fin convex portion 9114 is formed in such a size that it abuts on the top plate opening 9211.
By forming the heat sink 91 in such a size, even if the size and the installation position vary when the heat sink 91 is manufactured, the variation can be absorbed by the gap, and the assembly work can be facilitated.

In the present disclosure, the lighting devices 1, 80, the light source unit 70, and the heat sink portion 90 have the cover portion 12 and the base portion 13 having a rectangular shape in a plan view from the downward Z2 side. , The cover portion may be formed in a circular shape, for example, the cover main portion may be formed in a columnar shape, and the cover flange portion may be formed in a disk shape. As for the base portion, the base main portion may be formed in a disk shape, and the base flange portion may be provided from the peripheral portion thereof. Further, the cover main portion may be formed in a hemispherical shape.

Although the lighting device has been described above in the embodiment of the present invention, the above embodiment illustrates the lighting device for embodying the technical idea of the present invention, and does not specify the present invention to these. However, it is equally applied to those of other embodiments such as those in which modifications are appropriately made to each embodiment and each embodiment, and those in which these are combined.

1 lighting device, 10 light source unit, 11 light emitting part, 111 light emitting element, 112 board, 1121 mounting surface, 113 board terminal, 12 cover part, 121 cover main part, 122 cover flange part, 123 cover through hole, 13 heat sink part, 131 base part, 1310 base center part, 1311 base main part, 1311a light source mounting part, 1311b fin mounting part, 1311c base wire insertion part, 1312 base flange part, 1312a flange body part, 1312b fitting part, 132 fin part, 1321 fin Fixed part, 1322 first heat radiation fin, 1323 second heat radiation fin, 1324 fin convex part, 1325 fin concave part, 14 connection part, 141 pillar main part, 1411 pillar connection part, 1412 component mounting hole, 142 pillar side part, 143 base fixing part, 1431 connecting part fixing part, 144 cover holding part, 1441 holding vertical part, 1442 holding horizontal part, 145 top plate mounting part, 1451 top plate fixing part, 15 top plate part, 150 top plate center part , 151 top plate main part, 1511 top plate opening, 152 top plate connection part, 1521 top plate through hole, 1522 top plate notch, 16 power supply, 161 lighting circuit, 1611 power supply board, 1612 input connector, 1613 Output connector, 162 terminal block, 1621 power line insertion port, 163 power case, 1631 case main part, 1631a terminal block mounting part, 1631b case notch, 1632 case lid, 164 terminal block case, 165 signal connector, 1651 internal signal line, 20 arm, 21 arm main part, 211 main part through hole, 2111 first main part through hole, 2112 second main part through hole, 22 arm support part, 221 arm bending part, 2211 bending part Through hole, 222 arm vertical part, 223 arm connection part, 2231 arm insertion hole, 23 arm flange part, 30 connection member, 40 cover connection member, 50 top plate fixing member, 60 wire part, 61 first wire part, 62 Second wire part, 70 light source unit, 71 fin protection part, 80 lighting device, 801 gap, 81 light source part, 82 frame part, 821 connection base fixing part, 8211 connection part fixing part, 822 Cover holding part, 8221 holding vertical part, 8222 holding horizontal part, 823 frame pillar part, 8231 connection pillar part, 8231a pillar connection part, 8232 support pillar part, 8233 parts mounting pillar part, 8233a parts mounting hole, 824 connecting top plate fixing 8241 Top plate fixing part, 83 wiring cover part, 831 cover receiving part, 832 cover hooking part, 8321 hooking vertical part, 8322 hooking horizontal part, 8323 wiring cover fixing hole, 84 top plate part, 841 top plate main part , 8411 top plate opening, 8412 wire opening, 842 top plate connecting part, 8421 top plate through hole, 85 power supply, 90 heat sink part, 91 fin part, 9110 heat dissipation fin, 9111 fin fixing part, 9112 first Heat sink fin, 9113 2nd heat sink fin, 9114 fin convex part, 9114a 1st fin convex part, 9114b 2nd fin convex part, 92 top plate part, 920 top plate center part, 921 top plate main part, 9211 top Plate opening, 9211a first top plate opening, 9211b second top plate opening.

Claims (3)

A base part having a plate-shaped base main part to which a light emitting part is attached to one surface,
The heat radiation fins that project in a rectangular shape so as to be orthogonal to the base main part,
A top plate portion arranged so as to face the side surface of the fin portion on the projecting side, and a top plate portion.
Equipped with
The radiating fin has a fin protrusion protruding from the side surface, and the radiating fin has a fin protrusion.
The top plate portion is a lighting device having a top plate opening into which the fin portion is inserted. The base portion has a plurality of the heat radiation fins so as to be arranged in a circumferential shape.
The lighting device according to claim 1, wherein the top plate portion is provided with a plurality of top plate openings in a circumferential shape. The radiating fin is provided with a fin recess so that the base portion is recessed from the side surface.
The lighting device according to any one of claims 1 or 2, which has a fin protection portion arranged so as to be accommodated in the recess.

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