JP6932031B2 - Lighting equipment and lighting equipment - Google Patents

Description

The present invention relates to heat dissipation of a luminaire, and more particularly to a radiating structure of a luminaire using a solid-state light emitting element typified by a light emitting diode (LED). Further, the present invention relates to a luminaire and a luminaire using a light emitting diode (LED), and more particularly to a configuration of a luminaire having heat dissipation, waterproofness and insulation.

Conventionally, the techniques described in Patent Documents 1 to 3 have been disclosed with respect to a heat dissipation structure of a luminaire using a solid-state light emitting element.

Patent Document 1 describes the light emitting module and lighting together with a technique of interposing a translucent member between the light emitting module and the glove, efficiently conducting heat generated from the LED chip to the glove and efficiently dissipating heat from the surface of the glove. It discloses a technique for suppressing heat transfer of an LED chip to a lighting circuit by interposing a heat insulating means between the circuit and the circuit.

Patent Document 2 discloses a technique that efficiently conducts heat generated by an LED chip to a glove through a filler at the time of lighting, and has an effect of improving heat dissipation from the outer surface of the glove. A light emitting portion having an LED chip is arranged on the surface of the light emitting unit to form a three-dimensional light emitting module. A three-dimensional light emitting module and a glove containing the light emitting module are provided at one end of the substrate. A light-transmitting filler is filled between the three-dimensional light-emitting module and the inner surface of the glove so as to come into contact with the light-emitting portion and the support portion. Note that Patent Document 2 is a divisional application of Patent Document 1, and the disclosure technique is substantially the same as that of Patent Document 1.

The LED lamp disclosed in Patent Document 3 includes a base, a tubular heat sink having a through hole extending along the central axis, a substrate arranged on the side surface of the heat sink, and an LED element mounted on the substrate. It has a cooling fan arranged between the base and the heat sink, a housing covering the cooling fan, and a translucent cover covering the substrate and the LED element. The central axis of the cooling fan and the central axis of the heat sink are aligned with the central axis of the lamp, and the heat sink has an inner tubular portion and an outer tubular portion arranged concentrically, and the inner tubular portion is formed. A central through hole is formed inside the portion, and a tubular through hole is formed between the inner tubular portion and the outer tubular portion.

Japanese Unexamined Patent Publication No. 2011-090843 Japanese Unexamined Patent Publication No. 2014-003032 Japanese Unexamined Patent Publication No. 2015-162413 Japanese Patent No. 5660383 Japanese Unexamined Patent Publication No. 2012-2217664 Japanese Unexamined Patent Publication No. 2015-144136 Registered Utility Model No. 3205878 Japanese Unexamined Patent Publication No. 09-0482777 Registered Utility Model No. 2564532 Japanese Unexamined Patent Publication No. 2000-090725 Japanese Unexamined Patent Publication No. 2000-108780 Japanese Patent No. 5028518 Japanese Unexamined Patent Publication No. 2011-070971 Japanese Unexamined Patent Publication No. 2010-141200 JP-A-2010-182996

However, the "heat dissipation method using a heat radiating medium filled with a silicone resin" disclosed in Patent Documents 1 and 2 hinders the weight reduction and price reduction of the luminaire. Further, the deterioration of the long-term reliability of the luminaire, such as the decrease in the transmittance due to the aging of the silicone resin and the generation of stress on the light emitting element due to the shrinkage of the silicone resin, has been an issue to be solved.

Patent Document 3 discloses a configuration in which a cooling fan is used as an alternative technique to "filling with a silicone resin", but this hinders the miniaturization of the luminaire. Further, it is necessary to use a cooling fan that requires a life level equivalent to that of the light emitting element having a long life, which hinders the price reduction of the luminaire.

An object of the embodiment of the present invention is to improve the heat dissipation of the luminaire while reducing the number of parts of the luminaire.

The luminaire of the present invention
The main body where the light emitting element is arranged on the outer circumference,
A cover that is arranged outside the main body and forms a lighting space in which the light emitting element is arranged,
A first end lid attached to the main body so as to cover one end of the main body and one end of the cover,
The end on the side of the main body is attached to the main body so as to cover the other end of the main body and the other end of the cover, and the base is attached to the end opposite to the main body. It is provided with a connecting portion.

In the light source unit of the present invention, the number of parts of the luminaire is reduced and the heat dissipation of the luminaire is improved by the connecting portion.

The perspective view explaining the assembled state of the lighting equipment which concerns on Embodiment 1. FIG. The perspective view explaining the assembled state of the lighting equipment which concerns on Embodiment 1. FIG. An exploded perspective view illustrating a component of the luminaire according to the first embodiment. An exploded perspective view illustrating a component of the luminaire according to the first embodiment. The front view of the luminaire according to Embodiment 1. The bottom view of the luminaire according to the first embodiment. The plan view of the luminaire according to Embodiment 1. The rear view of the luminaire according to Embodiment 1. The left side view of the luminaire according to Embodiment 1. The right side view of the luminaire according to Embodiment 1. The perspective view explaining the assembled state of the light source unit which concerns on Embodiment 1. FIG. The perspective view explaining the assembled state of the light source unit which concerns on Embodiment 1. FIG. The end view explaining the internal structure of the light source unit which concerns on Embodiment 1. FIG. A partial cross-sectional perspective view illustrating the internal structure of the light source unit according to the first embodiment. A partial cross-sectional perspective view illustrating the internal structure of the light source unit according to the first embodiment. The perspective view explaining the effect of the lighting equipment which concerns on Embodiment 1. FIG. The perspective view explaining another effect of the luminaire according to Embodiment 1. FIG. FIG. 3 is a perspective view illustrating still another effect of the luminaire according to the first embodiment. The figure explaining another structure of the main body part which concerns on Embodiment 1. FIG. The figure explaining another configuration of the heat radiation fin which concerns on Embodiment 1. FIG. The figure explaining another configuration of the connection part which concerns on Embodiment 1. FIG. The figure explaining the lighting apparatus which concerns on Embodiment 2. FIG. The figure explaining another lighting apparatus which concerns on Embodiment 2. FIG. The figure explaining another lighting apparatus which concerns on Embodiment 2. FIG. The figure which shows the luminaire which has different connection part which concerns on Embodiment 3. FIG. The figure which shows the luminaire which is different from the light source part and the connection part which concerns on Embodiment 3. FIG. The figure which shows the luminaire which has the protective film which concerns on Embodiment 3. The figure which shows the luminaire which has the protective film which concerns on Embodiment 3. FIG. 5 is a comparison table of Experimental Examples 1 to 5 of the main body 100 according to the third embodiment. The perspective view of "the embodiment" of the main body 100 which concerns on Embodiment 3. FIG. The end view of "the embodiment" of the main body 100 which concerns on Embodiment 3. FIG. FIG. 5 is a configuration diagram of Experimental Example 1 and Experimental Example 5 of the main body 100 according to the third embodiment. The figure which shows the heat dissipation effect of the main body 100 which concerns on Embodiment 3. The figure which shows the heat dissipation effect of the main body 100 which concerns on Embodiment 3. The perspective view explaining the assembled state of the light source unit which concerns on Embodiment 4. FIG. The figure explaining the 1st end part lid which concerns on Embodiment 4. FIG. The perspective view explaining the assembled state of the light source unit which concerns on Embodiment 5. FIG. The figure explaining the 1st end part lid which concerns on Embodiment 5. FIG. An exploded perspective view illustrating a component of the luminaire according to the sixth embodiment. An exploded perspective view illustrating a component of the luminaire according to the sixth embodiment. FIG. 6 is a partial cross-sectional perspective view illustrating the internal structure of the light source unit according to the sixth embodiment. FIG. 6 is a partial cross-sectional perspective view illustrating the internal structure of the light source unit according to the sixth embodiment. FIG. 6 is a partial perspective sectional view showing the configuration of the first gasket 160 according to the sixth embodiment. FIG. 6 is a partial cross-sectional view showing the configuration of the first gasket 160 according to the sixth embodiment. FIG. 5 is a partial cross-sectional view illustrating a modified example in which the shape of the cover gasket according to the sixth embodiment is different. FIG. 5 is a partial cross-sectional view illustrating a fourth modified example in which the shape of the cover gasket according to the sixth embodiment is different. FIG. 5 is a partial cross-sectional view illustrating a modified example in which the shape of the second end lid according to the sixth embodiment is different. FIG. 5 is a partial cross-sectional view illustrating a seventh modification in which the shape of the first gasket according to the sixth embodiment is different. FIG. 5 is a partial cross-sectional view illustrating an eighth modification in which the shape of the first gasket according to the sixth embodiment is different. FIG. 5 is a partial cross-sectional view illustrating a ninth modification in which the shape of the first gasket and the shape of the lid according to the sixth embodiment are different. The figure explaining the 1st end part lid which concerns on Embodiment 6. FIG. The figure explaining the 1st end part lid which concerns on Embodiment 6. FIG. The figure which shows the cross-sectional shape of the cylinder part gasket 162 which concerns on Embodiment 6. The figure which shows the cross-sectional shape of the cover gasket 161d which concerns on Embodiment 6. An exploded perspective view illustrating a component of the support unit 20a according to the seventh embodiment. An exploded perspective view illustrating a component of the support unit 20a according to the seventh embodiment. FIG. 5 is a partial cross-sectional view illustrating the structure of the support unit 20a according to the seventh embodiment. A perspective view of the luminaire 1 according to the eighth embodiment. The left side view, the front view, the right side view, and the rear view of the luminaire 1 according to the eighth embodiment. The bottom view and the plan view of the luminaire 1 according to the eighth embodiment. An exploded perspective view illustrating a component of the luminaire 1 according to the eighth embodiment. An exploded perspective view illustrating a component of the luminaire 1 according to the eighth embodiment. FIG. 3 is a perspective view illustrating the connecting lid 700 according to the eighth embodiment. The front view, the bottom view, and the plan view of the connecting lid 700 according to the eighth embodiment. The figure explaining the wiring structure which concerns on Embodiment 8. The figure explaining the ventilation structure which concerns on Embodiment 8.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below. The embodiments described below are essentially preferred examples, which are not intended to limit the scope of the present invention, its applications and uses, and various modifications can be made as needed. ..

Further, in the drawings below, the relationship between the sizes of the constituent members may differ from the actual one. In addition, when the directions or positions such as top, bottom, left, right, front, back, front, and back are indicated in the description of the embodiment, those notations are described as such for convenience of explanation. It does not limit the arrangement and orientation of devices, appliances, parts, etc.

Further, in each figure, the same or corresponding parts are designated by the same reference numerals. In the description of the embodiment, the same or corresponding parts will be omitted or simplified as appropriate.

Embodiment 1.
*** Explanation of configuration ***
<<< Lighting Equipment 1 >>>
The luminaire 1 of the first embodiment will be described with reference to FIGS. 1 to 15.
The illuminator 1 has a light source unit 10 and a support unit 20 that supports and fixes the light source unit 10.

<< Light Source Unit 10 >>
The light source unit 10 has a main body 100, a light emitting unit 120, and a cover 130.
Further, the light source unit 10 has a first end lid 140 and a second end lid 150.

<Main body 100>
The main body 100 is formed in a tubular shape, uses aluminum, is integrally manufactured by extrusion molding, and functions as a heat sink.
The main body 100 has an outer peripheral surface 110 on the outer peripheral side surface and an inner peripheral surface 103 on the inner peripheral side surface.
The main body 100 includes a mounting portion 102 in which the light emitting portion 120 is arranged on the outer peripheral surface 110, and a heat dissipating portion 105 that dissipates the operating heat generated by the light emitting unit 120 on the inner peripheral surface 103 facing the mounting portion 102. It is formed.

The main body 100 has a tubular portion 101 that serves as a heat transfer path or a heat transfer portion. The tubular portion 101 is a hexagonal column, and is a tubular body having a uniform diameter of the circumscribed circle in a cross section orthogonal to the central axis O.
The tubular portion 101 has a mounting portion 102 on the outer peripheral surface 110. The mounting portion 102 functions as a mounting surface on which the light emitting portion 120 is arranged.
The tubular portion 101 has a heat dissipating portion 105 on the inner peripheral surface 103. The heat dissipating portion 105 is a projecting portion projecting from the inner peripheral surface 103, and the heat dissipating portion 105 is composed of a plurality of heat radiating fins 108.
The tubular portion 101 has an end portion 104 as a tubular end portion.
The plurality of heat radiating fins 108, which are the heat dissipation portions 105, are erected from the inner peripheral surface 103 of the main body portion 100 to the internal space side of the main body portion 100, and from one end portion 104 in the central axis direction of the main body portion 100. It stands over the other end 104. The plurality of heat radiation fins 108 are erected at a height equal to or larger than the thickness dimension of the main body 100, and are integrally formed with the main body 100.

The end 104 has a screw hole 106. The first end lid 140, the second end lid 150, the screw 170 for attaching the support unit 20, and the screw 50 are screwed into the screw hole 106.

An internal space 107 is formed inside the main body 100. The internal space 107 functions as a heat exchange unit and serves as an air flow path. The internal space 107 refers to the entire space inside the tubular portion 101. In the cross section orthogonal to the central axis O, the diameter dimension of the internal space 107 is the same as the inner diameter dimension of the tubular portion 101.

A ventilation space 109 exists in the center of the internal space 107. The ventilation space 109 in the present embodiment is a tubular space located in the center of the internal space 107 and in which the heat dissipation portion 105 is not formed, and there is no obstacle to ventilation in the direction of the central axis O. Refers to space. The ventilation space 109 is a part of the internal space 107, and there is no boundary or partition wall that separates the ventilation space 109 from other spaces.

<Light emitting unit 120>
The light emitting unit 120 has a light emitting element 121 and a substrate 122.
Preferable specific examples of the light emitting element 121 are a solid light emitting element, a light emitting diode element, an organic EL element, and a laser diode element.
The substrate 122 may be a rigid substrate or a flexible substrate. A preferred specific example of the substrate 122 is a substrate based on an aluminum base material, but other materials may be selected as the base material.

<Cover 130>
The cover 130 is arranged outside the main body 100 so as to cover the light emitting element 121 and separated from the light emitting element 121. The central axis of the cover 130 and the central axis of the main body 100 are arranged on the same central axis O.

The cover 130 is a tubular body having a uniform diameter in a cross section orthogonal to the central axis O, and is a pipe-shaped translucent tubular tube. Preferable specific examples of the cover 130 are a glass tube and a resin tube, but other materials may be selected and formed.
The cover 130 has a translucent portion 131 which is a main portion of the tube body.
The cover 130 has an outer peripheral surface 132, an inner peripheral surface 133, and an end 134 at the end of the cylinder.
A tubular lighting space 137 is formed between the substrate 122 on which the light emitting element 121 is mounted and the cover 130.
The shape of the cross section of the cover 130 orthogonal to the central axis O is not limited as long as it does not interfere with the outer peripheral surface 110 of the substrate 122 and the main body 100. Further, the cover 130 may have a partially different cross-sectional shape or dimension in the direction of the central axis O as long as it does not interfere with the outer peripheral surface 110 of the substrate 122 and the main body 100.

<First end lid 140>
The first end lid 140 is attached to the main body 100 so as to cover one end of the main body 100 (cylinder 101) and one end 134 of the cover.
The first end lid 140 is a lid that covers one end of the main body 100 (cylinder 101) and the cover 130, and functions as a first cap.
A preferred specific example of the first end lid 140 is aluminum, but other materials may be selected.

The first end lid 140 has an annulus 141 as a main portion. The annulus 141 has a donut shape. As shown in FIGS. 14 and 15, the annular portion 141 has an annular eaves 149 on the outer edge covering the end 134 of the cover 130.
The first end lid 140 has an annular groove 142 in which the first gasket 160 is arranged, as shown in FIGS. 14 and 15. The groove portion 142 functions as a first gasket arrangement portion. A gasket is a fixing sealing material used to make a structure airtight and liquidtight. A good example of a gasket is a rubber ring or rubber sheet or resin ring.
The diameter of the first gasket 160 is the same as the diameter of the cover 130, and the first gasket 160 is in close contact with the end 134 of the cover 130 all around.

The first end lid 140 has a bridge portion 144. The bridge portion 144 is a bridge that crosses the central space of the ring portion 141. The bridge portion 144 has a wide thick bridge 147 having a large width up to the central axis O and a narrow narrow bridge 148 having a small width.
The first end lid 140 forms two semicircular vents 146 on both sides of the bridge 144. The vent 146 is an opening that communicates the internal space 107 of the main body 100 with the external space.
The first end lid 140 has four screw holes 143 arranged at 90 degree intervals. A screw 170 for attaching the first end lid 140 is screwed into the screw hole 143.

<Second end lid 150>
The second end lid 150 is attached to the main body 100 so as to cover the other end of the main body 100 (cylinder 101) and the other end 134 of the cover.
The second end lid 150 is a lid that covers the other end of the main body 100 (cylinder 101) and the cover 130, and functions as a second cap.
A preferred embodiment of the second end lid 150 is aluminum, but other materials may be selected.

Like the first end lid 140, the second end lid 150 has an annulus portion 151, a groove portion 152, a screw hole 153, and a bridge portion 154, and has two semicircular shapes on both sides of the bridge portion 154. It forms a vent 156.
The bridge portion 154 has a wide thick bridge 157 having a large width and a narrow narrow bridge 158 having a small width.

The second end lid 150 has a through hole 155. The through hole 155 is formed inside the groove portion 152. The through hole 155 is a through hole for passing the wiring member 30, and is a ventilation hole for communicating the lighting space 137 and the external space.

<< Support unit 20 >>
The support unit 20 is provided with a power receiving end 200 that receives lighting power for lighting the light emitting element 121 from the outside, and a wiring member 30 that transmits the lighting power from the power receiving end 200 to the substrate 122 on which the light emitting element 121 is mounted. The wiring path to be arranged is formed.
The support unit 20 has a power receiving end 200, a support 210, a connecting portion 230, and a second gasket 250.
The support unit 20 has a structure in which the support 210, the second gasket 250, and the connecting portion 230 are integrated by screws 260.

<Power receiving end 200>
The power receiving end 200 is a base, and has a base housing 201 and an eyelet 202.

<Support 210>
The support 210 is an insulating portion, and is manufactured by using a resin material in the present embodiment. This makes it possible to reduce the weight of the support unit 20.
The support 210 has a tubular support tubular portion 212.
The first end portion 216 of the support cylinder portion 212 is an end portion on the base side, and has a screw portion 211 into which the base housing 201 is fitted.
The second end portion 217 of the support cylinder portion 212 is a connecting portion side end portion and has a support flange portion 213. The support flange portion 213 has an annular shape and functions as a connecting portion mounting portion for connecting the connecting portion 230.
The support collar 213 has four screw holes 214 arranged at 90 degree intervals. A screw 260 for attaching the connecting portion 230 is screwed into the screw hole 214.
The support flange portion 213 has a groove portion 215 on which the second gasket 250 is arranged. The support flange portion 213 functions as a second gasket arrangement portion.
The support 210 has an outer shape and dimensions such that a general-purpose gasket (waterproof packing) can be attached to the support 1 in a state where the luminaire 1 is attached to the socket of the luminaire, and the power receiving end 200 can be sufficiently sealed.
The support 210 may be manufactured using ceramic as an insulating material, or may be manufactured using a mixed insulating material in which a plurality of insulating materials are mixed. Further, the support 210 may be manufactured by using a material mixed with a heat conductive filler or the like as long as the insulating property is maintained.

<Connecting part 230>
The connecting portion 230 connects and fixes the light source unit 10 and the support unit 20 to both ends.
The connecting portion 230 functions as a heat dissipation path for transferring the heat generated from the light source unit 10 to the outside of the illuminator 1.

The first end portion 238 of the connecting portion 230 is a support side end portion and has a connecting cylinder portion 231. The connecting cylinder portion 231 has a lid 247 that covers the support 210, and a wiring hole 248 through which the wiring member 30 is passed is formed in the center of the lid 247.
A connecting collar portion 232 is formed around the lid 247 of the connecting cylinder portion 231. The connecting flange portion 232 functions as a support mounting portion that is connected to the support 210.

The second end portion 239 of the connecting portion 230 is a light source unit side end portion and has an annulus portion 233 connected to the light source unit 10.
The annulus 233 functions as a light source unit support.
The annulus 233 has four screw holes 234 arranged at 90 degree intervals. A screw 50 for attaching the support unit 20 to the light source unit 10 is screwed into the screw hole 234.

The annulus 233 has a shape corresponding to the second end lid 150.
Four cross-shaped bridges are formed in the annulus 233. The bridge crosses the center of the annulus 141, and four fan-shaped vents 246 are formed in the center of the annulus 233.

One of the bridges is a wide bridge 241 and the other three are narrow bridges 242. The wide bridge 241 has the same width as the wide bridge 157, and the wide bridge 241 has a long groove portion 237 in the center. A long elliptical third gasket 40 is arranged in the groove portion 237, and a wiring member 30 is arranged inside the third gasket 40. The groove portion 237 functions as a third gasket arranging portion and also functions as an electric wire pair arranging portion. The third gasket 40 liquid-tightly seals the wiring path formed between the light source unit 10 and the support unit 20.

The connecting cylinder portion 231 and the annulus portion 233 are connected by a projecting portion 235.
The projecting portion 235 is composed of four heat radiating plates 240 arranged in a cross shape from the central axis O. The four heat radiating plates 240 are rectangular or square, and are arranged parallel to the central axis O and radially at intervals of 90 degrees from the central axis O.
In the projecting portion 235, there are four projecting spaces 249 separated by four heat radiation plates 240. The projecting space 249 has a shape in which a cylinder is halved, one end of the projecting space 249 is directly connected to the internal space 107, and the outer periphery of the projecting space 249 is directly connected to the outside air. The protrusion space 249 is a space that extends the internal space 107, and the diameters of the protrusion space 249 and the internal space 107 are the same. Since the protrusion space 249 and the internal space 107 are continuous and there are no obstacles except for the four cross-shaped bridges, the atmosphere can freely pass through the protrusion space 249 and the internal space 107.

One end of the heat radiating plate 240 in the central axial direction is connected to four bridges of the annular portion 233.
The other end of the heat radiating plate 240 in the central axial direction is coupled to the lid 247.
The four cross-shaped bridges of the annulus 233 are formed at the ends of the projecting portions 235, and the four bridges and the four heat radiating plates 240 are continuous.
The heat transmitted from the main body 100 is transmitted to the ring portion 233 and the four bridges, and further transferred to the projecting portion 235, and is dissipated to the outside air from the four heat radiating plates 240. The main body 100, the annulus 233, and the projecting portion 235 have a function as a heat dissipation path.
At the center of the projecting portion 235, four heat radiating plates 240 are joined, and an insertion portion 236 through which the wiring member 30 is passed is formed on the central axis O. The insertion portion 236 functions as a wire pair arrangement portion.

<< Wiring route >>
The lighting power that receives power from the outside of the luminaire 1 and lights the light emitting element 121 is supplied by the wiring member 30 that electrically connects the power receiving end 200 and the substrate 122 on which the light emitting element 121 is mounted. A wiring path is formed inside the support unit 20 so that the wiring member 30 is not exposed to the outside of the luminaire 1.
The wiring path is a through hole 155 of the second end lid 150, a groove portion 237 and a third gasket 40 of the support 210, an insertion portion 236 of the projecting portion 235, and a wiring hole 248 of the connecting cylinder portion 231.
The through hole 155 of the second end lid 150 is located at one end of the groove 237 of the support 210 and the third gasket 40. The insertion portion 236 of the projecting portion 235 is located at the groove portion 237 of the support body 210 and the other end of the third gasket 40. The insertion portion 236 of the projecting portion 235 and the wiring hole 248 of the connecting cylinder portion 231 are located on the central axis O. As a result, the wiring path is formed in a crank shape.

<< Internal structure >>
The internal structure of the light source unit 10 will be described with reference to FIG.
The main body 100 is a hexagonal pillar, and has 16 mounting portions 102, and a substrate 122 having 16 mounting surfaces is mounted. On each surface of the substrate 122, 10 light emitting elements 121 are arranged in a row along the central axis O.

<Screw hole 106>
On the inner peripheral surface 103 of the end portion 104 of the main body portion 100, there are eight screw holes 106 arranged at intervals of 45 degrees between the plurality of heat radiation fins 108. All the screw holes 106 are formed on the back side of the corner portion of the main body portion 100 of the hexagonal pillar in order to increase the strength of the main body portion 100. The screw hole 106 has a C-shape that is opened toward the internal space 107, and has a structure that facilitates heat dissipation and a configuration that facilitates ventilation. The length of the screw hole 106 in the central axis direction is equal to or less than the screw length.

Screws 170 for attaching the first end lid 140 or the second end lid 150 are screwed into the four screw holes 106 arranged at 90 degree intervals.
Screws 50 for attaching the support unit 20 are screwed into the other four screw holes 106 arranged at 90-degree intervals. The screw 50 is inserted through the screw hole 214 of the support flange portion 213, sandwiches the annular portion 151 of the second end lid 150, and fixes the support collar portion 213 to the main body portion 100.

<Heat radiation fin 108>
The inner peripheral surface 103 of the main body 100 (cylinder 101) has 16 heat radiating fins 108 as heat dissipating portions 105.
All the heat radiation fins 108 are erected on the back side of the light emitting element 121.
The heat radiation fin 108 is a rectangular plate having a uniform thickness formed from one end 104 of the main body 100 (cylinder 101) to the other end 104.
The plurality of heat radiation fins 108 all have the same shape, thickness, and height.

The plurality of heat radiation fins 108 are all arranged in parallel with the central axis O of the main body 100 (cylinder 101).
The plurality of heat radiation fins 108 are all erected toward the central axis of the main body 100 (cylinder 101) at a height halfway through the central axis.
The plurality of heat radiation fins 108 are all integrally molded with the main body 100 (cylinder 101), and are fixed only to the inner peripheral surface 103 of the main body 100 (cylinder 101).
None of the plurality of heat radiation fins 108 are connected to other heat radiation fins.
In the center of the main body 100 (cylinder 101), there is a ventilation space 109 in which a plurality of heat radiation fins 108 do not exist at all.

<Dimensional relationship>
The dimensional relationship of the parts will be described with reference to FIGS. 6, 9, 10 and 13.
In FIGS. 6, 9, 10 and 13, the meanings of the symbols are as follows. Although the main body 100 is a hexagonal pillar, it is regarded as a cylinder below. The following length is the length in the central axis direction. Further, in the following description, "A to B" means A or more and B or less.

L1 = length of illuminator 1 L2 = length of light source unit 10 L3 = length of connecting portion 230 L4 = length of support cylinder portion 212 of support 210 L5 = length of power receiving end 200 L6 = length of substrate 122 Length L7 = Length of main body 100 = Length of cover 130

The dimensional relationship is as follows.
L1 = L2 + L3 + L4 + L5
L6 <L7

W1 = Outer diameter of light source unit 10 = Outer diameter of first end lid 140 = Outer diameter of second end lid 150 W2 = Maximum outer diameter of connecting portion 230 W3 = Maximum outer diameter of support 210 W4 = Support cylinder Outer diameter of the portion 212 W5 = Outer diameter of the power receiving end 200 W6 = Outer diameter of the cover 130 W7 = Outer diameter of the main body 100 W8 = Inner circumference of the first end lid 140 = Inner circumference of the second end lid 150 Diameter W9 = Inner circumference of cover 130 W10 = Inner circumference of main body 100 W11 = Maximum distance between tops of light emitting element 121 T = Height of heat radiation fin 108 θ = Central angle of heat radiation fin 108 = 22.5 degrees

The dimensional relationship is as follows.
W5 <W4 <W3 <W2
W8 = W10 <W7 <W11 <W9 <W6 <W1
T = W10 / 6 or T≈W10 / 6

The diameters of the main body 100 and the cover 130 are different (W10 <W9, W7 <W6), but the lengths are the same for L7.
The preferred ratio of the outer peripheral diameter W7 of the main body 100 to the outer peripheral diameter W6 of the cover 130 is 7: 9 (7.7:10), but may be 6: 10 to 9:10.
The closer the main body 100 is to the cover 130, the larger the internal space 107 of the main body 100 becomes. From the viewpoint of heat dissipation, it is desirable that the ratio of the outer peripheral diameters of the main body 100 and the cover 130 is large, and it is 8:10 or 9:10 is more preferable.

The preferred ratio of the inner circumference diameter W10 to the length L7 of the main body 100 is 2: 3, but it may be 1: 3 to 4: 3.
From the viewpoint of heat dissipation, the ratio of the inner peripheral diameter W10 of the main body 100 to the length L7 is preferably large, and more preferably 3: 3 or 4: 3.
More preferably, the shape and size of the main body 100 may match those of conventionally used lamps.

The preferred ratio of the length L3 of the connecting portion 230 to the length L2 of the light source unit 10 is 1: 3, but may be 0.5: 3 to 2: 3. The length L3 of the connecting portion 230 should be too short, as long as it can be satisfied that the air in the internal space 107 flows into the projecting space 249 without hindrance and that heat can be dissipated from the projecting portion 235 to the projecting space 249 without hindrance. It is better to be larger than 0.5: 3, because the air permeability and heat dissipation are deteriorated. For breathability and heat dissipation, 1: 3 to 2: 3 is more preferable.

The preferable ratio of the outer peripheral diameter W3 of the support 210 to the outer peripheral diameter W2 of the connecting portion 230 is 3: 4, but it may be 1: 4 to 3: 4. The smaller the outer peripheral diameter W3 of the support 210, the more the air in the internal space 107 flows without hindrance. Therefore, it is better that it is smaller than 3: 4, and further, 1: 4 is better.
Alternatively, it is preferable that the outer peripheral diameter W3 of the support 210 is the same as the outer peripheral diameter W5 of the power receiving end 200.

The inner peripheral diameter of the first end lid 140 and the inner peripheral diameter of the second end lid 150 are both the same for W8. Further, the inner peripheral diameter W10 of the main body 100 is the same as the inner peripheral diameter W8 of the first end lid 140 and the inner peripheral diameter W8 of the second end lid 150 (W8 = W10). Therefore, the inner circumference of the first end lid 140 and the inner circumference of the second end lid 150 do not block the ventilation of the internal space 107 of the main body 100.

The height T of the heat radiating fin 108 is preferably one-fifth of the inner peripheral diameter W10 of the main body 100, but may be in the range of one-eighth to one-third of the inner peripheral diameter W10 of the main body 100. ..

*** Explanation of the effect of the embodiment ***
The effects of this embodiment will be described with reference to FIGS. 16 to 18.
FIG. 16 is a diagram schematically showing the state of the air flow when the illuminator 1 is turned on while the central axis O is along the substantially horizontal direction.

As described above, in the light source unit 10 of the present embodiment, the operating heat generated by the light emitting element 121 of the light emitting unit 120 is the heat radiation fin 108 of the inner peripheral surface 103 or the heat dissipating unit 105 from the mounting portion 102 via the tubular portion 101. Is transmitted to the gas (air) that fills the internal space 107 from the inner peripheral surface 103 or the heat radiating fin 108 of the heat dissipating portion 105. The gas (air) filling the internal space 107 warmed by the heat dissipated from the main body 100 thermally expands and becomes lighter, moves upward toward both ends 104 of the main body 100 in FIG. 16, and both ends. It flows out to the outside and upward of the portion 104. Then, the gas (air) that fills the external space and is not warmed flows into the internal space 107 via the lower ends 104 of both ends 104 of the main body 100 in FIG.

That is, when the illuminator 1 is turned on with the central axis O along the substantially horizontal direction, two large airflows are generated that flow into the internal space 107 from below the both end portions 104 and flow out from above both end portions 104. Therefore, efficient heat exchange can be performed. As described above, the luminaire 1 can be efficiently cooled with a simple configuration, and the quality and performance can be maintained even when the lighting operation is continued for a long period of time.

FIG. 17 is a diagram schematically showing the state of the air flow when the illuminator 1 is turned on with the power receiving end 200 facing downward and the central axis O along the substantially vertical direction.

As described above, in the light source unit 10 of the present embodiment, the operating heat generated by the light emitting element 121 of the light emitting unit 120 is the heat radiation fin 108 of the inner peripheral surface 103 or the heat dissipating unit 105 from the mounting portion 102 via the tubular portion 101. Is transmitted to the gas (air) that fills the internal space 107 from the inner peripheral surface 103 or the heat radiating fin 108 of the heat dissipating portion 105.

The gas (air) filling the internal space 107 warmed by the heat dissipated from the main body 100 thermally expands and becomes lighter, moves toward the upper end 104 of the main body 100 in FIG. 17, and moves toward the main body 100. It flows out to the outside and upward of the part 100. Then, the gas (air) that fills the external space and is not warmed flows into the internal space 107 via the lower end portion 104 on the lower side of the main body portion 100 in FIG.

FIG. 18 is a diagram schematically showing the state of the air flow when the illuminator 1 is turned on with the power receiving end 200 facing upward and the central axis O along the substantially vertical direction.

As described above, in the light source unit 10 of the present embodiment, the operating heat generated by the light emitting element 121 of the light emitting unit 120 is the heat radiation fin 108 of the inner peripheral surface 103 or the heat dissipating unit 105 from the mounting portion 102 via the tubular portion 101. Is transmitted to the gas (air) that fills the internal space 107 from the inner peripheral surface 103 or the heat radiating fin 108 of the heat dissipating portion 105.

The gas (air) filling the internal space 107 warmed by the heat dissipated from the main body 100 thermally expands and becomes lighter, moves toward the upper end 104 of the main body 100 in FIG. 18, and moves toward the main body 100. It flows out to the outside and upward of the part 100. Then, the gas (air) that fills the external space and is not warmed flows into the internal space 107 via the lower end portion 104 on the lower side of the main body portion 100 in FIG.

As described above, when the illuminator 1 is turned on in the state shown in FIG. 17 or FIG. 18, the gas (air) filling the internal space 107 warmed by the heat dissipated from the main body 100 is sequentially charged. While moving upward, the unheated gas (air) that fills the external space is sequentially supplied from the bottom to the top.

That is, when the illuminator 1 is turned on with the central axis O along the substantially vertical direction, unheated gas (air) continuously flows into the internal space 107 from the lower end portion 104 and flows in. The gas (air) moves upward in the internal space 107 while being warmed by the internal space 107, and the gas (air) warmed by the internal space 107 continuously flows out from the upper end 104 to the external space. Efficient heat exchange can be performed because a steady air flow is generated by the draft effect (also called ventilation force or chimney effect). As described above, the luminaire 1 can be efficiently cooled with a simple configuration, and the quality and performance can be maintained even when the lighting operation is continued for a long period of time.

In an environment where a draft effect as shown in FIG. 17 or FIG. 18 is obtained, there is generally a relationship of Equation 1.
Q = C * A * √ (2g * H * (Ti-To) / Ti) ... (Equation 1)
Q: Air supply speed due to draft effect [m ³・ g ^-1 ]
C: Flow coefficient A: Cross-sectional area of internal space 107 [m ² ]
g: Gravity acceleration [9.80665m · s ^-2 ]
H: Length dimension of internal space 107 [m]
To: Temperature of gas (air) in external space [K]
Ti: Average temperature [K] of gas (air) in the internal space 107

In this embodiment,
A ≒ π * ((inner circumference diameter W10 of main body 100) / 2) ²
H ≒ length L2 of the light source unit 10 ≒ length L7 of the main body 100
The outer dimensions of the main body 100 (inner circumference diameter W10, length L7) are adjusted so that the average temperature of the gas (air) in the internal space 107 corresponding to the operating temperature of the light emitting element 121 does not exceed a predetermined value. To decide.

***Production method***
The manufacturing method of the luminaire 1 is as follows.
It is assumed that each part is prepared in advance.

A light emitting unit 120 is attached to the main body 100.
The wiring member 30 is soldered to the substrate 122 of the light emitting unit 120.
The first end lid 140 is screwed to one end of the main body 100.
The first gasket 160 is arranged in the groove 142 of the first end lid 140.
The main body 100 is inserted into the cover 130, and one end of the cover 130 is brought into contact with the first gasket 160.
Another first gasket 160 is applied to the other end of the cover 130, the wiring member 30 is passed through the through hole 155 of the second end lid 150, and the second end lid 150 is screwed to the other end of the main body 100. Stop.
At this point, the light source unit 10 is completed.

The order of attachment of the first end lid 140 and the second end lid 150 may be reversed.

The wiring member 30 is passed through the third gasket 40, and is passed through the insertion portion 236 of the projecting portion 235.
The third gasket 40 is arranged in the groove portion 237 of the connecting portion 230, and the connecting portion 230 is screwed to the other end portion of the main body portion 100.
The wiring member 30 is passed through the second gasket 250 and the wiring hole 248 of the connecting cylinder portion 231.
The support 210 is screwed to the connecting portion 230 with the second gasket 250 sandwiched between them.
The wiring member 30 is soldered to the power receiving end 200, and the power receiving end 200 is screwed into the support 210 to fix it.
At this point, the luminaire 1 is completed.

<Structure of lighting equipment 1>
As described above, the luminaire 1 of the first embodiment is configured to include the following. (1) Light emitting unit 120 as a heat source (light emitting element 121)
(2) Main body 100 (cylinder 101) as a heat transfer path
(3) Main body 100 (cylinder 101) and connecting portion 230 (annular portion 233) as heat dissipation paths (4) Heat dissipation portion 105 (heat dissipation fin 108) and connecting portion 230 (protruding portion) as heat dissipation parts 235)
(5) Internal space 107 (ventilation space 109) and protrusion space 249 as ventilation paths

Further, the luminaire 1 includes a support unit 20 that supports the light source unit 10 in a state of being attached to a socket of the luminaire.
The support unit 20 can be attached to the socket of the light source unit 10 without hindering the supply of air from the external space to the internal space 107 of the light source unit 10 or the exhaust from the internal space 107 of the light source unit 10 to the external space. be.

<Construction of heat sink>
Further, the main body 100 of the first embodiment adopts the following configuration in order to function as a heat sink.
(1) In order to form the tubular portion 101 with a hollow straight pipe and maximize the ventilation in the central axis direction of the internal space 107, no obstacle is installed in the internal space 107 other than the heat dissipating portion 105. ..
(2) All the heat dissipating portions 105 are arranged in a thin plate shape parallel to the central axial direction so as not to obstruct the ventilation in the central axial direction.
(3) The heat dissipating portion 105 is erected from the inner peripheral surface 103 toward the central axis O halfway through the central axis O, and in the center of the internal space 107, a columnar ventilation space 109 in which the heat dissipating portion 105 does not exist is provided. Yes, it provides a free passage for air. Since there is a ventilation space 109, even if the illuminator 1 is placed horizontally, the air can easily move upward.
(4) The heat dissipating portion 105 exists on the back side of all the light emitting elements 121.
That is, the heat radiation fins 108 exist corresponding to the plurality of light emitting elements 121 arranged in a row.
(5) The main body 100 is made of metal and integrally molded.

*** Other configurations ***
<Other configurations of the main body 100>
The screw holes 106 on the inner circumference of the end portion 104 of the main body portion 100 may be arranged on the outer circumference. If the screw holes 106 are located on the outer periphery of the main body 100, the air permeability is improved.

Since the support unit 20 cannot be attached to one end of the main body 100, the end 104 of the main body 100 to which the support unit 20 cannot be attached does not have four screw holes 106 for attaching the support unit 20. good. Breathability is improved if the four screw holes 106 are eliminated.

The main body 100 is preferably a cylinder from the viewpoint of breathability. The main body 100 may be an elliptical pillar.
When the main body 100 is a prism, it does not have to be a hexagonal prism, and may be a polygonal pillar. It is desirable that it is closer to a cylinder, and it is desirable that it is a hexagonal prism or more, an octagonal prism or more, a twelve prism, or even a twenty prism or more.

FIG. 19 shows another shape of the main body 100.
As shown in (a), a collar 111 may be formed in advance at one end of the main body 100. The collar 111 presses the end portion of the cover 130, and functions as a first cap or a second cap that covers one end portion of the cover 130. Since one of the collars 111 is provided, the first end lid 140 or the second end lid 150 can be omitted.
As shown in (b), collars 111 may be formed in advance at both ends of the main body 100. The cover 130 is fixed to the outer circumference of the collar 111.
Since the collar 111 is provided at both ends, both the first end lid 140 and the second end lid 150 can be omitted.
As shown in (c), the thickness of the main body 100 does not have to be uniform, and both ends may be thin and thicker toward the center.
As shown in (d), the main body 100 may have a truncated cone shape or a trumpet shape instead of a straight pipe. The shape of the cover 130 may be a cylindrical shape, a truncated cone shape, or a trumpet shape.

<Other configurations of heat dissipation fins 108>
FIG. 20 shows another shape of the heat radiation fin 108.
As shown in (a), the heat radiation fin 108 may have a trapezoidal shape with both sides cut. Improved breathability on both sides.
As shown in (b), the heat radiation fin 108 may have a triangular shape or a chevron shape with both sides cut. Improved breathability on both sides.
As shown in (c), the heat radiation fin 108 may have a ventilation hole 112 in the middle. Vent holes 112 improve breathability.
As shown in (d), the heat radiation fin 108 may have a slit 113 in the middle. Breathability is improved by the slit 113.
As shown in (e), the heat radiation fin 108 does not have to have a uniform thickness, and may have a thick root and may become thinner toward the tip. Further, the height of the heat radiation fin 108 does not have to be uniform.
Further, the number of heat radiation fins 108 may be 16 or more.
Further, the heat radiation fin 108 may exist on the outer peripheral surface of the main body 100 without the substrate 122.

<Other configurations of the first end lid 140>
Since the support unit 20 cannot be attached to one end of the main body 100, the bridge portion 144 may not be attached to the first end lid 140 to which the support unit 20 cannot be attached. If the bridge 144 is eliminated, the air permeability will be improved.
Alternatively, even when the bridge portion 144 is provided on the first end lid 140, it is not necessary to provide the wide bridge 147, and only the narrow bridge 148 may be provided.
Further, the vent 146 of the first end lid 140 may be provided with a net or a net for preventing the intrusion of foreign matter.
Further, the first end lid 140 may be provided with a through hole 155 of the second end lid 150. If the first end lid 140 is provided with the through hole 155, the first end lid 140 and the second end lid 150 become exactly the same parts, and the number of parts is reduced.

<Other configurations of lighting space 137>
The lighting space 137 between the substrate 122 and the cover 130 may be filled with a transparent silicone resin that promotes heat dissipation. Since the lighting space 137 is narrow, heat dissipation from the cover 130 can be promoted without significantly increasing the weight.

<Other configurations of connecting portion 230>

A plurality of ring portions 233 may be provided on the connecting portion 230, and a plurality of light source units 10 may be attached to one connecting portion 230.
For example, four arm trees are provided in the connecting portion 230 at intervals of 90 degrees, an annular portion 233 is provided at each end of the four arm trees, and one light source unit 10 is attached to each of the four annular portions 233. .. In this way, four light source units 10 can be attached to the support unit 20 having one power receiving end 200, and a chandelier type illuminator 1 can be obtained.
Alternatively, one straight arm tree is provided in the connecting portion 230, a total of three ring portions 233 are provided in the center, right end portion, and left end portion of the arm tree, and three light source units 10 are provided with respect to the support unit 20. May be installed in parallel.

The number of heat radiating plates 240 of the projecting portion 235 may be three or two instead of four. The smaller the number of projecting portions 235, the better the air permeability.
As shown in FIG. 21, the projecting portion 235 of the connecting portion 230 may be composed of four pillars or four pipes instead of the four heat radiating plates 240. If the projecting portion 235 is a pillar or a pipe, the center has a large opening, so that the air permeability is improved.
In the case of a pipe, the wiring member 30 can be passed through, the bridge portion 144 becomes unnecessary, and the air permeability is further improved.

<Part composition>
If the luminaire 1 is covered by the lamp cover of the luminaire, the cover 130 may be omitted. Without the cover 130, the first end lid 140 and the second end lid 150 are also unnecessary. Without the cover 130, the outer peripheral surface of the main body 100 and the surface of the substrate 122 are exposed, so that the heat dissipation from the outer peripheral surface of the main body 100 and the surface of the substrate 122 is improved.

The second end lid 150 and the support 210 may be composed of one component.
The support 210 and the connecting portion 230 may be composed of one component.
The second end lid 150, the support 210, and the connecting portion 230 may be composed of one component.

<Structure of waterproof structure>
It can be made waterproof with the following structure.
(1) The first gasket 160 is made into a ring-shaped rubber sheet, and both ends of the main body 100 and the cover 130 are brought into close contact with the first gasket 160.
(2) After passing the wiring member 30 through the through hole 155 of the second end lid 150, the through hole 155 is sealed with a silicone adhesive.
With the above structure, the lighting space 137 is sealed, and the light source unit 10 has a waterproof structure.
(3) The support 210 and the connecting portion 230 are brought into close contact with the third gasket 40, and the wiring member 30 drawn out from the through hole 155 is sealed with the third gasket 40.
(4) Since the wiring member 30 is inserted into the insertion portion 236 of the connecting portion 230 and penetrates the wiring hole 248 of the support 210, the wiring hole 248 of the support 210 is sealed with a silicone adhesive.
(5) The existing waterproof structure is adopted as the waterproof structure between the support 210 and the power receiving end 200 and the waterproof structure between the power receiving end 200 and the socket.
(6) The support 210 can be fitted with a gasket (waterproof packing) for general purposes or attached to the luminaire 2 with the luminaire 1 attached to the socket of the luminaire, and the power receiving end 200 is sufficiently provided. It has an outer shape and dimensions that can be sealed.

Embodiment 2.
The difference between the present embodiment and the first embodiment will be mainly described.

<<< Horizontal installation >>>
FIG. 22 is an example of a road lighting device in which the illuminator 1 is used with the central axis O along a substantially horizontal direction.

*** Explanation of configuration ***
The luminaire 1000 has a luminaire 2 to which the luminaire 1 described in the first embodiment is attached. The luminaire 2 has a socket 1010 and a lamp cover 1011.
The lighting device 1000 has a support column 1001 standing on the ground. The introduction line 1002 connected to the commercial AC power supply 1020 is drawn from the lower part of the support column 1001.
Below the support column 1001, there is a power supply arrangement unit 1003 in which the lighting device 1004 is arranged. The lighting device 1004 converts the AC power input input from the introduction line 1002 into a DC power supply and outputs it to the electric wire 1005 in the column. The electric wire 1005 in the column is connected to the socket 1010.

<<< Upward installation >>>
FIG. 23 is an example of a street lighting device in which the illuminator 1 is used with the power receiving end 200 facing downward and the central axis O along a substantially vertical direction.

*** Explanation of configuration ***
The luminaire 1000 has a luminaire 2 to which the luminaire 1 described in the first embodiment is attached. The luminaire 2 has a socket 1010 and a lamp cover 1011. The socket 1010 is attached upward to the socket arrangement portion 1012.
Since other configurations are the same as those in FIG. 22, the description thereof will be omitted.

<<< Installation facing down >>>
FIG. 24 is an example of a high ceiling lighting device in which the luminaire 1 is used with the power receiving end 200 facing upward and the central axis O along the substantially vertical direction.

*** Explanation of configuration ***
The luminaire 1000 has a luminaire 2 to which the luminaire 1 described in the first embodiment is attached. The luminaire 2 has a socket 1010 and a shade 1014.
The socket 1010 is attached downward to the socket arrangement portion 1012.
The luminaire 2 is suspended from the ceiling 5000 by a suspension lower portion 1013 via a support column 1001.

Embodiment 3.
In this embodiment, the differences from the first and second embodiments will be mainly described.
*** Explanation of configuration ***
FIG. 25 is a diagram showing a luminaire 1 in which the connecting portion 230 is different.
The configuration of the illuminator 1 shown in FIG. 25 is the same as that of the first and second embodiments, but the height of the connecting portion 230 in the central axis direction is different.

In FIG. 25, the meanings of the symbols are as follows.
L1 = Length of illuminator 1 L2 = Length of light source unit 10 L3 = Length of connecting part 230 L8 = Length of support unit 20 TK = Height in the central axis direction of heat dissipation plate 240 Y = Height of heat dissipation plate 240 The relationship between the width dimensions in the radial direction is as follows.
L2 + L8 = L1
In the following description, "NM" means "N or more and M or less".

The luminaire 1 shown in FIG. 25 has a connecting portion 230.
The connecting portion 230 has an annular portion 233 connected to the light source unit 10.
As shown in FIGS. 3 and 4, the annulus 233 is connected to the second end lid 150.
The annulus 233 has a bridge coupled to the plurality of heat dissipation plates 240, and has a plurality of fan-shaped vents 246 formed by the bridge.

The support unit 20 has a tubular support 210.
As shown in FIGS. 3 and 4, the connecting portion 230 has a lid 247 that covers the support 210, and the lid 247 is coupled to a plurality of heat radiating plates 240.

Each of the three luminaires 1 shown in FIG. 25 is manufactured by using a connecting portion selected from three types of connecting portions 230 having different heights.
The three types of connecting portions 230 are a plurality of types of connecting portions having the same shape of the ring portion 233 and the lid 247 but different heights in the central axis direction.
In FIG. 25, the length L2 of the light source unit is the same, but the length L3 of the connecting portion is different and the length L8 of the support unit 20 is different, so that the length L1 of the illuminator 1 is also different.

The heat radiating plate 240 was rectangular or square in the first embodiment, but the height TK in the central axis direction of the heat radiating plate 240 of the three illuminators 1 shown in FIG. 25 and the radial width of the heat radiating plate 240. The ratio with Y is as follows.
(A) Height in the central axis direction TK: Width in the radial direction Y = 4: 8
(B) Height in the central axis direction TK: Width in the radial direction Y = 3: 8
(C) Height in the central axis direction TK: Width in the radial direction Y = 2: 8
That is, the ratio of the height TK in the central axis direction to the width Y in the radial direction is 2: 8 to 4: 8 = 1: 4 to 2: 4.
The height TK in the central axis direction is 50% or less of the width Y in the radial direction, and the shape of the heat radiating plate 240 is such that the width Y in the radial direction is the length of the long side and the height TK in the central axis direction is short. It has a rectangular shape that is the length of the side.

The ratio of the length L3 of the connecting portion to the length L2 of the light source unit was 1: 3 in FIG. 6 of the first embodiment, but the length of the connecting portion of the three illuminators 1 shown in FIG. 25. The ratio between L3 and the length L2 of the light source unit is as follows.
(A) Length of connecting portion L3: Length of light source unit L2 = 2.0: 10
(B) Length of connecting portion L3: Length of light source unit L2 = 1.5: 10
(C) Length of connecting portion L3: Length of light source unit L2 = 1.0: 10
That is, the ratio of the length L3 of the connecting portion to the length L2 of the light source unit is 1: 10 to 2:10.
In the third embodiment, the ratio between the length L3 of the connecting portion and the length L2 of the light source unit is a value smaller than 1: 3 (= 3.3: 10), and the length L3 of the connecting portion is It is 20% or less of the length L2 of the light source unit.

*** Explanation of effect ***
<Small and lightweight>
As the length L3 of the connecting portion becomes smaller, the length of the entire illuminator 1 becomes smaller.
If the length of the luminaire 1 is reduced, as a result, the luminaire 1 can be made smaller and lighter.

<Vibration countermeasures>
Further, if the length of the luminaire 1 is reduced, the vibration range (maximum amplitude) of the luminaire 1 centered on the socket when vibration is applied to the luminaire is reduced, and the luminaire 1 and the luminaire collide with each other. The possibility of damage can be reduced.

<Applicability rate>
If the length L3 of the connecting portion is reduced, the length of the entire luminaire 1 is reduced, and the luminaire 1 can be adapted to various shapes of luminaires.

*** Explanation of configuration ***
FIG. 26 is a diagram showing a luminaire 1 in which the light source unit 10 and the connecting portion 230 are different.
The configuration of the illuminator 1 shown in FIG. 26 is the same as that of the first and second embodiments, but the heights of the light source unit 10 and the connecting portion 230 in the central axis direction are different.

The three luminaires 1 shown in FIG. 26 are the same as the connecting portions shown in FIG. 25.

The light source unit 10 has a second end lid 150 at the end of the tubular portion 101.
The light source unit 10 is a light source unit selected from a plurality of types of light source units 10 having the same shape of the second end lid 150 but different heights in the central axis direction.
In FIG. 26, the length L2 of the light source unit is different, and the length L3 of the connecting portion is also different. L1 is the same.

The ratio of the length L3 of the connecting portion to the length L2 of the light source unit was 1: 3 in FIG. 6 of the first embodiment, but the length of the connecting portion of the three illuminators 1 shown in FIG. 26. The ratio between L3 and the length L2 of the light source unit is as follows.
(A) Length of connecting portion L3: Length of light source unit L2 = 2.5: 10.5
(B) Length of connecting portion L3: Length of light source unit L2 = 2.0: 11.0
(C) Length of connecting portion L3: Length of light source unit L2 = 1.5: 11.5
That is, the ratio of the length L3 of the connecting portion to the length L2 of the light source unit is 1.5: 11.5 to 2.5: 10.5.

If the length L2 of the light source unit becomes long, the number of light source elements can be increased.
The number of light source elements in each row in FIG. 26 is as follows.
(A) Number of light source elements in each row = 10 (b) Number of light source elements in each row = 11 (c) Number of light source elements in each row = 12

*** Explanation of effect ***
<Increased light intensity, increased luminous flux>
Even if the length L1 of the illuminator 1 is the same, the length L2 of the light source unit can be increased, so that the amount of light and the luminous flux can be increased.
In the example shown in FIG. 26, the illuminator 1 of (b) is 10% brighter than the illuminator 1 of (a), and the illuminator 1 of (c) is 20% brighter than the illuminator 1 of (a).

<Applicability rate>
Since the length L1 of the luminaire 1 is the same regardless of the amount of light and the luminous flux, the luminaire 1 having a different amount of light and the luminous flux can be adapted to various shapes of luminaires.

<Scattering prevention film>
*** Explanation of configuration ***
In FIG. 27A, the cover 130 of the light source unit 10 is provided with a fluorine coating film 61 as a shatterproof film.
In FIG. 27 (b), the cover 130 of the light source unit 10 is provided with a translucent film 62 as a shatterproof film.

*** Explanation of effect ***
By applying a fluorine coating or a film to the cover 130, it is possible to prevent the cover 130 from scattering even if the cover 130 is cracked or chipped.
In particular, when the cover 130 is made of glass, it is preferable to apply a shatterproof film.
Further, since the surface of the cover 130 to which the fluorine coating or the film is attached is less likely to be soiled, the illuminator 1 can maintain a stable luminous flux value for a long period of time.
The fluorine coating is not limited to the outer peripheral surface of the cover 130, but may be applied to the inner peripheral surface of the cover 130, or may be applied to the outer peripheral surface and the inner peripheral surface of the cover 130. Further, the fluorine coating and the film may be those to which a light diffusing agent is added.

<Scattering prevention film and optical characteristics>
*** Explanation of configuration ***
In FIG. 28A, the cover 130 of the light source unit 10 is provided with a translucent textured film 63 as a shatterproof film. Specific examples of the texture are a wrinkle pattern, a wrinkle pattern, an uneven pattern, or a striped pattern.
In FIG. 28B, the cover 130 of the light source unit 10 is provided with a translucent color film 64 as a shatterproof film.
The translucent textured film 63 and the translucent color film 64 may be those to which a light diffusing agent is added.

*** Explanation of effect ***
By attaching the film to the cover 130, it is possible to prevent the cover 130 from scattering even if the cover 130 is cracked or chipped.
Further, since the textured film or the color film changes the optical characteristics when passing light, it is possible to provide the illuminating tool 1 suitable for the atmosphere of the installation environment.

<Other examples of materials>
The main body 100, the first end lid 140, and the second end lid 150 are not limited to those made of aluminum, and may be made of magnesium, titanium, or other metal, or an alloy containing these.
Magnesium or titanium is lighter than aluminum.
When the cover 130 is made of glass, it is desirable that the main body 100, the first end lid 140, and the second end lid 150 are made of metal in order to protect the glass.
The cover 130 is not limited to glass, and may be made of polycarbonate, acrylic or other transparent resin. When the cover 130 is made of transparent resin, the main body 100, the first end lid 140, and the second end lid 150 do not have to be made of metal, and are made of polycarbonate, acrylic, or other transparent resin. You may.

*** Explanation of effect ***
<Lightening>
If magnesium or titanium or an alloy containing these is used as the metal material used for the main body 100, the first end lid 140, and the second end lid 150, the weight of the entire luminaire 1 is reduced.
If resin is used as the cover 130 material, the weight of the entire luminaire 1 is reduced.
If resin is used for the first end lid 140 and the second end lid 150 instead of the metal material, the weight of the entire illuminator 1 is reduced.

<Vibration countermeasures>
Further, if the luminaire 1 becomes lighter, the vibration range (maximum amplitude) of the luminaire 1 centered on the socket when the luminaire 1 is vibrated becomes smaller, and the luminaire 1 and the luminaire collide with each other and are damaged. The possibility of doing so can be reduced.

<Material of support 210>
The support 210 may be manufactured using a material other than the resin material, or may be manufactured using a metal material such as aluminum, as long as the insulation property with the power receiving end 200 is maintained.
For the support 210, a metal material other than aluminum, for example, copper, stainless steel, iron, tin, magnesium, titanium, an alloy containing these, or other metal material may be used.
Alternatively, it may be made of ceramic, glass, paper, or wood.
The combination of suitable materials for the support 210 and the connecting portion 230a will be described below.
Material of support 210 Material of connecting portion 230a (1) Metal resin (2) Ceramic resin (3) Ceramic metal Since the support 210 is a structural member at the center of each component of the connecting portion 300, it is a metal material or ceramic. It is desirable to use a material that is less likely to deteriorate over time than a resin material.
If dissimilar metals are in contact with each other for a long period of time, corrosion may occur between the dissimilar metals. Therefore, it is desirable that the material of the support 210 and the connecting portion 230a is not a dissimilar metal.
As will be described later, the support 210 may have a structure in which the metal support housing portion is covered with a resin lid portion. Further, the support 210 and the connecting portion 230a may be manufactured as one component using a resin material.

<Main body 100>
FIG. 29 is a diagram showing the relationship between the configuration and performance of the tubular portion 101 of the main body portion 100.
FIG. 29 shows the relationship between the main body 100, the heat dissipation effect, the rigidity, the productivity, and the weight of the six modes of Experimental Examples 1 to 5 and the “embodiment”.

30 and 31 are views showing the structure of the tubular portion 101 of the main body portion 100.

<Cylinder 101>
The main body 100 has a tubular portion 101 that serves as a heat transfer path or a heat transfer portion.
The tubular portion 101 is a tubular body having a uniform diameter of the circumscribed circle in a cross section orthogonal to the central axis O of the main body portion 100.
The tubular portion 101 is a hexagonal pillar and has 16 rectangular surfaces.
The tubular portion 101 has end portions 104 at both ends.
The tubular portion 101 has a plurality of heat radiation fins 108 on each inner peripheral surface 103 of the sixteen rectangular surfaces.

<Heat radiation fin 108>
The heat radiating fin 108 is erected from the center of each inner peripheral surface 103 of the sixteen rectangular surfaces toward the central axis O of the main body 100.
The heat radiating fin 108 is erected from one end 104 in the central axis direction of the main body 100 to the other end 104.
The heat radiating fin 108 is integrally manufactured as a part of the tubular portion 101 by extrusion molding.

<Screw hole 106>
The inner peripheral surface 103 of the end portion 104 has eight screw holes 106.
The screw hole 106 is formed inside the corner portion of the tubular portion 101 of the hexagonal column, that is, inside the joint portion of each inner peripheral surface 103 of the sixteen rectangular surfaces.
The screw holes 106 are arranged between the plurality of heat radiation fins 108 at intervals of 45 degrees.
The screw hole 106 has a C-shaped cross section that opens toward the internal space 107.
The screw hole 106 is erected from one end 104 in the central axis direction of the main body 100 to the other end 104.
The screw hole 106 is integrally manufactured as a part of the tubular portion 101 by extrusion molding.

Screws 170 for attaching the first end lid 140 or the second end lid 150 are screwed into the four screw holes 106 arranged at 90 degree intervals.
Screws 50 for attaching the support unit 20 are screwed into the other four screw holes 106 arranged at 90-degree intervals.
The screw 50 is inserted through the screw hole 214 of the support flange portion 213, sandwiches the annular portion 151 of the second end lid 150, and fixes the support collar portion 213 to the main body portion 100.
The first end lid 140, the second end lid 150, the screw 170 for attaching the support unit 20, and the screw 50 are screwed into the screw hole 106.

An internal space 107 is formed inside the tubular portion 101. The internal space 107 refers to the entire space inside the tubular portion 101.

A ventilation space 109 exists in the center of the internal space 107. The ventilation space 109 is a tubular space located in the center of the internal space 107 and on which the heat radiation fins 108 are not formed.

The dimensions shown in FIGS. 30 and 31 are as follows.
L7 = Length of cylinder 101 W10 = Inner circumference of cylinder 101 = Diameter of internal space 107 W11 = Diameter of ventilation space 109 (cavity) T = Height of heat radiation fin 108 Br = Heat radiation fin 108 Tip spacing Kr = radiating fin 108 root spacing F = radiating fin 108 thickness The ratio of the inner diameter W10 of the tubular portion 101 to the length L7 of the tubular portion 101 is 2: 3.

FIG. 29 compares the following four types of “performance items”.
The "heat dissipation effect" is a simulation result showing the relationship between the configuration of the tubular portion 101 of the main body 100 and the heat dissipation effect when the ventilation space 109 is directed in a substantially horizontal direction.
"Rigidity" indicates the robustness of the tubular portion 101 of the main body portion 100.
“Productivity” indicates the suitability for extrusion molding of the tubular portion 101 of the main body portion 100.
"Weight" indicates the weight evaluation of the cylinder portion 101 of the main body portion 100, and the lighter the weight is desirable.

In FIG. 29, the symbols shown in "performance items" have the following meanings.
◎ = Excellent 〇 = Good △ = Normal × = Not suitable

<Heat dissipation effect>
The figure on the left of FIG. 32 is a diagram showing a simulation implementation configuration of the tubular portion 101 of Experimental Example 1. The screw hole 106 does not exist in the simulation implementation configuration.
Experimental example 1 is
The inner circumference diameter W10 of the cylinder portion 101 of the main body portion 100 is φ90 [mm],
Number K of heat radiation fins 108 is 16 [sheets]
The height T of the heat radiation fin is 10 [mm]
Is shown.
Although not shown, Experimental Examples 2, 3 and 4 are obtained by changing the height T of the heat radiation fins with respect to Experimental Example 1.
The height T [mm] of the heat radiation fin is 20 [mm], 30 [mm], 45 [mm].
Is shown.
If the height T [mm] of the heat radiation fin is changed, the diameter dimension W11 [mm] of the ventilation space 109 (cavity) is also changed. The relationship between the height T [mm] of the heat radiating fin and the diameter dimension W11 [mm] of the ventilation space 109 (cavity) is as follows.
T + W11 + T = 2T + W11 = W10

FIG. 33 is a graph showing the relationship between the height T [mm] of the heat radiating fin and the heat radiating effect based on the simulation result.
The vertical axis is the estimated value of the junction temperature (junction temperature) [° C.] of the LED, which is the light emitting element 121.
The first horizontal axis (top) is the height T [mm] of the heat radiation fin 108 from the tubular portion 101,
The second horizontal axis (bottom) is the distance (interval) dimension Br [mm] between the tips of adjacent heat radiation fins 108.
Is.

As shown in Experimental Examples 1, 2 and 3 of FIG. 33, when the ventilation space 109 (the hollow portion in which the heat radiation fin 108 is not arranged) is provided in the internal space 107, the height T [mm] of the heat radiation fin 108 is increased. As the temperature increases, the temperature Tj [° C.] of the light emitting element 121 tends to gradually decrease.

Further, as shown in Experimental Example 4 of FIG. 33, when the height T [mm] of the heat radiation fin 108 is the maximum, the temperature Tj [° C.] of the light emitting element 121 shows the maximum value. That is, when the heat radiating fins 108 are provided radially in the entire internal space 107 and the ventilation space 109 does not exist, the heat radiating effect is low.

From this experiment, when the ventilation space 109 is oriented in a substantially horizontal direction, the mode in which the ventilation space 109 is provided as in Experimental Examples 1 to 3 is more efficient in dissipating heat than the case where the ventilation space 109 is not provided. You can see that it does. Even when the ventilation space 109 is directed in the substantially vertical direction, the mode in which the ventilation space 109 is provided as in Experimental Examples 1 to 3 is preferable because a draft effect is obtained and heat is dissipated.

The right figure of FIG. 32 is a diagram showing a simulation implementation configuration of the tubular portion 101 of Experimental Example 5. The screw hole 106 does not exist in the simulation implementation configuration.
Experimental Example 5 is obtained by changing the number K of the heat radiating fins 108 with respect to Experimental Example 1, and shows a case where the number K of the heat radiating fins 108 is 32 [sheets].

FIG. 34 is a graph showing the relationship between the distance Br [mm] at the tip of the heat radiating fin 108 and the heat radiating effect based on the simulation result.
The vertical axis is the estimated value of the junction temperature (junction temperature) Tj [° C.] of the LED which is the light emitting element 121.
The horizontal axis is the distance (interval) dimension Br [mm] between the tips of adjacent heat radiation fins 108.
FIG. 34 shows
The inner circumference diameter W10 of the tubular portion 101 is φ90 [mm],
The diameter dimension W10 of the ventilation space 109 (the cavity where the heat radiation fins 108 are not arranged) is φ70 [mm],
The height T of the heat radiation fin 108 is 10 [mm].
In this case, the distance (interval) dimension Br [mm] between the tips of the adjacent heat radiation fins 108 is different by changing the number K of the heat radiation fins 108.

As shown in FIG. 34, when the number K of the heat radiation fins 108 of the experimental example 1 is 16 and the number K of the heat radiation fins 108 of the experimental example 3 is 32, the distance (interval) dimension between the tips of the heat radiation fins 108 is increased. Br [mm] becomes smaller, and the LED junction temperature (junction temperature) Tj [° C.] gradually rises.

From this experiment, when the inner circumference diameter W10 [mm] of the tubular portion 101 and the diameter dimension W11 [mm] of the ventilation space 109 (the hollow portion where the heat radiation fin 108 is not arranged) are the same, the tip of the heat radiation fin 108 It can be seen that the larger the distance (interval) dimension Br [mm] between the two, the higher the heat dissipation effect is obtained.
That is, it is better to secure the distance (interval) dimension Br [mm] between the tips of the heat radiating fins 108 according to the amount of heat radiated, rather than increasing ^{the heat radiating area [mm 2} ] of the heat radiating fins 108 more than necessary.
Further, even when the ventilation space 109 (the hollow portion where the heat radiating fin 108 is not arranged) is directed in the vertical direction, the heat radiating fin 108 is radiated according to the amount of heat radiated rather than increasing ^{the heat radiating area [mm 2] of the heat radiating fin 108 more than necessary.} It is better to secure the distance (interval) dimension Br [mm] between the tips of the above.
Further, even when the ventilation space 109 (the cavity where the heat radiating fins 108 are not arranged) is directed in the vertical direction and the heat energy released between the heat radiating fins 108 is exhausted by the draft effect, the heat radiating of the heat radiating fins 108 is more than necessary. It is better not to increase the area [mm ² ] and make the distance (interval) dimension Br [mm] between the tips of the heat radiating fins 108 too small.

<Fig. 33 and Fig. 34>
Comparing FIGS. 33 and 34, it can be seen that the heat dissipation effect changes significantly when the height T of the heat dissipation fins 108 changes, and does not change so much even if the distance Br of the heat dissipation fins 108 changes.
As shown in FIG. 33, the heat dissipation effect is excellent when the height T of the heat dissipation fins 108 is 25 to 35 [mm], and suddenly when the height T of the heat dissipation fins 108 exceeds 40 [mm]. It gets worse.
Therefore, when designing the tubular portion 101 having a high heat dissipation effect, the height T of the heat dissipation fins 108 is important.
As shown in FIG. 33, when the inner peripheral diameter W10 of the tubular portion 101 is φ90 [mm], the height T of the heat radiation fin 108 is 25 to 35 [mm], which is excellent. Therefore, W10: T = 90: 25. It is desirable that ~ 35≈18: 5-7. If T = 30 [mm], then W10: T = 90: 30 = 3: 1.
Further, as shown in FIG. 33, when the inner peripheral diameter W10 of the tubular portion 101 is φ90 [mm], the distance Br of the heat radiation fins 108 is excellent at 3.5 to 7.5 [mm]. It is desirable that Br = 90: 3.5 to 7.5 = 18: 0.7 to 1.5. If Br = 5.0 [mm], then W10: Br = 90: 5 = 18: 1.
The configuration of the tubular portion 101 is not limited to the above ratio, and may be a configuration having a ratio within the range of plus or minus 10% of the ratio.

<Rigidity>
As shown in FIG. 29, the rigidity of Experimental Examples 1 to 5 is good or excellent.
Experimental Example 4 is the most robust because the tips of the 16 heat radiation fins 108 are in contact with each other at the center.

<Productivity>
In the case of manufacturing using extrusion molding, if the height T of the heat radiation fin 108 is made too large, the extruded heat radiation fin 108 may fall down due to its own weight before solidifying. In the case of manufacturing using extrusion molding, the height T of the heat radiation fin 108 is preferably in the range of less than 20 [mm] in order to prevent the heat radiation fin 108 from tipping over due to its own weight.
If the manufacturing cost is not taken into consideration, the heat radiation fin 108 is prepared as a separate part from the cylinder portion 101, and the heat radiation fin 108 is attached to the cylinder portion 101 with screws, rivets, or the like to obtain the height dimension of the heat radiation fin 108. Can be made higher.

<Weight>
As shown in FIG. 29, the weights of Experimental Examples 3 and 4 increase by the amount that the height T of the heat radiation fins 108 increases. In order to reduce the weight, it is preferable that the height T of the heat radiation fin 108 is less than 30 [mm].

<Embodiment>
The “embodiment” shown in FIG. 29 is
The inner circumference diameter W10 of the tubular portion 101 is φ90 [mm],
The diameter dimension W11 of the ventilation space 109 (cavity) is φ60 [mm],
The height T of the heat radiation fin 108 is 15 [mm].
Number K of heat radiation fins 108 is 16 [sheets]
The distance between the tips of the heat radiation fins 108 Br is 10 [mm].
The length L7 of the tubular portion 101 is 145 [mm].
It was.

These values are expressed as a ratio as follows.
W10: W11 = 90: 60 = 3: 2
W10: L7 = 90: 145 = 2: 3
W10: T = 90: 15 = 6: 1
W10: Br = 90: 10 = 9: 1
The configuration of the tubular portion 101 is not limited to the above ratio, and may be a configuration having a ratio within the range of plus or minus 10% of the ratio.

The configuration of the “embodiment” shown in FIG. 29 is an example of a configuration showing good results in the performance items of heat dissipation effect, rigidity, productivity, and weight described above.
However, it is not necessary to limit the value to the value shown in "Embodiment" of FIG. 29, and the following values may be adopted.
The inner circumference diameter W10 of the tubular portion 101 is φ80 [mm] or more and φ100 [mm] or less.
The diameter dimension W11 of the ventilation space 109 (cavity) is φ50 [mm] or more and φ70 [mm] or less.
The height T of the heat radiation fin 108 is 10 [mm] or more and 20 [mm] or less. The number K of the heat radiation fin 108 is 12 [sheets] or more and 20 [sheets] or less. [Mm] or less The length L7 of the tubular portion 101 is 100 [mm] or more and 200 [mm] or less.

These values are expressed as a ratio as follows.
W10: W11 = 80-100: 50-70 = 8-10: 5-7
W10: L7 = 80-100: 100-200 = 4-5: 5-10
W10: T = 80-100: 10-20 = 8-10: 1-2
W10: Br = 80-100: 10-15 = 16-20: 2-3

As shown by the first horizontal axis (top) and the second horizontal axis (bottom) in FIG. 33, if the height T [mm] of the heat radiation fin 108 is increased, the distance (interval) between the tips of the heat radiation fin 108 is increased. ) Dimension Br [mm] becomes smaller.
Further, if the number K of the heat radiation fins 108 is increased, the distance (interval) dimension Kr [mm] at the base of the heat radiation fins 108 and the distance (spacing) dimension Br [mm] at the tip of the heat radiation fins 108 become smaller.
Assuming that the thickness of the heat radiation fin 108 is F, the relationship between the height T [mm] of the heat radiation fin 108 and the distance (interval) dimension Br [mm] of the tip of the heat radiation fin 108 is as follows.
In addition, Br and Kr obtained by the following formula are the length of the arc, not the distance (interval), but the length of the arc is a value equivalent to the distance (interval).
[{(W10-T-T) x 3.14} ÷ K] -F =
[{(W11) x 3.14} ÷ K] -F = Br
The relationship between the number K of the heat radiation fins 108 and the distance (interval) dimension Kr [mm] at the base of the heat radiation fins 108 is as follows.
[{(W10) x 3.14} ÷ K] -F = Kr

Assuming that the thickness F of the heat radiation fin 108 is 1.4 [mm], Br and Kr are as follows.
In Experimental Example 1, the heat dissipation effect is Δ.
T = 10
Br = [{(90-10-10) x 3.14} ÷ 16] -1.4 ≒ 12
Kr = [{(90) × 3.14} ÷ 16] -1.4 ≒ 16
In the "embodiment", the heat dissipation effect is 〇,
T = 15
Br = [{(90-15-15) x 3.14} ÷ 16] -1.4 ≒ 10
Kr = [{(90) × 3.14} ÷ 16] -1.4 ≒ 16
In Experimental Example 2, the heat dissipation effect is 〇,
T = 20
Br = [{(90-20-20) x 3.14} ÷ 16] -1.4 ≒ 8
Kr = [{(90) × 3.14} ÷ 16] -1.4 ≒ 16
In Experimental Example 3, the heat dissipation effect is ◎,
T = 30
Br = [{(90-30-30) x 3.14} ÷ 16] -1.4 ≒ 4
Kr = [{(90) × 3.14} ÷ 16] -1.4 ≒ 16
In Experimental Example 4, the heat dissipation effect is ×, and
T = 45
Br = [{(90-45-45) x 3.14} ÷ 16] -1.4 ≒ 0
Kr = [{(90) × 3.14} ÷ 16] -1.4 ≒ 16
In Experimental Example 5, the heat dissipation effect is ×, and
T = 10
Br = [{(90-10-10) x 3.14} ÷ 32] -1.4 ≒ 5
Kr = [{(90) x 3.14} ÷ 32] -1.4 ≒ 7

Br: Kr: T of Experimental Example 1 in which the heat dissipation effect is normal is 12:16:10 = 96: 128: 80.
Br: Kr: T of the "embodiment" in which the heat dissipation effect is good is 10:16:15 = 80: 128: 120.
Br: Kr: T of Experimental Example 2 in which the heat dissipation effect is good is 8:16:20 = 64: 128: 160.
Br: Kr: T of Experimental Example 3 in which the heat dissipation effect is excellent is 4:16:30 = 32: 128: 240.
Br: Kr: T of Experimental Example 4 in which the heat dissipation effect is unsuitable is 0: 16: 45 = 0: 128: 360.
Br: Kr: T of Experimental Example 5 in which the heat dissipation effect is unsuitable is 5: 7: 10 ≈ 91: 128: 183.

When the heat dissipation effect is emphasized, the configuration of the tubular portion 101 is preferably the configuration of Experimental Example 3 in which the heat dissipation effect is excellent, and Br: Kr: T is 4:16:30 = 32: 128. : 240 = 2: 8: 15 ≈ 1: 4: 8 is desirable. In order to make the heat dissipation effect good or excellent, it is desirable that Br: Kr is 4:16 to 10:16 = 32: 128 to 80: 128 = 1: 4 to 5: 8.
When Br: Kr is greater than 91: 128, as in Experimental Example 1 of Br: Kr = 12: 16 = 96: 128 = 3: 4 or Experimental Example 5 of Br: Kr = 5: 7 ≈ 91: 128. , Ordinary or unsuitable.
As in Experimental Example 4 of Br: Kr = 0: 16 = 0: 128, when the distance (interval) dimension Br [mm] of the tip of the heat radiating fin 108 is 0, the heat radiating effect is small.

<Effect>
The tubular portion 101 having the configuration of the "embodiment" shows good results in terms of performance items such as heat dissipation effect, rigidity, productivity, and weight, and is suitable as a component of the luminaire 1.

Embodiment 4.
In the present embodiment, the differences from the first to third embodiments will be mainly described.
*** Explanation of configuration ***
FIG. 35 is a perspective view showing an assembled state of the light source unit 10 in which the first end lid and the second end lid are different.
36 is a view showing the first end lid 140a, FIG. 36 (a) is a right side view, FIG. 36 (b) is a front view, and FIG. 36 (c) is a left side view, FIG. 36. (D) is a bottom view, and FIG. 36 (e) is a perspective view.

The bridge portion 144 of the first end lid 140a in the present embodiment includes one wide bridge 147 and three narrow bridges 148. One end of one width bridge 147 is connected to one end of three width bridges 148 at the substantially center of the first end lid 140a, and the other one width bridge 147 and three width bridges 148. The end is connected to the annulus 141. The bridge portion 144 has a radial shape as a whole, and the four regions surrounded by the annulus portion 141 and the bridge portion 144 are vents 146. The vent 146 is an opening that communicates the internal space 107 of the main body 100 with the external space.
In the present embodiment, the second end lid 150a can be the same as the first end lid 140a.

*** Explanation of action effect ***
The first end lid 140a has a radial bridge portion 144 formed integrally with the annulus portion 141 to improve the rigidity. Further, the rigidity of the light source unit 10 to which the first end lid 140a is attached and the illuminating tool 1 using the light source unit 10 are also improved.
In the first end lid 140a, at least one of the radial bridge portions 144 is formed as a wide bridge 147 and is integrally formed with the annular portion 141, and the wide bridge 147 is stronger than the narrow bridge 148. be. Therefore, the wide bridge 147 can be used as a fall prevention mechanism for attaching a wire (not shown) in order to prevent the luminaire 1 attached to the luminaire from falling or loosening. The wire (not shown) is attached only to the wide bridge 147 by winding it around the wide bridge 147.
Since the wide bridge 147 has a flat surface portion wider than that of the narrow bridge 148, it is easy to clearly indicate that it is a fall prevention mechanism for attaching a wire. Although not shown, a method such as pasting, printing, or engraving a printed matter can be used as a method for clearly indicating that the mechanism is a fall prevention mechanism.

When the same as the first end lid 140a is used as the second end lid 150a, the wide bridge 157 (not shown) can be used as a route for wiring the wiring member 30.

Embodiment 5.
In this embodiment, the differences from the first to fourth embodiments will be mainly described.
*** Explanation of configuration ***
FIG. 37 is a perspective view showing an assembled state of the light source unit 10 in which the first end lid and the second end lid are different.
38 is a view showing the first end lid 140b, FIG. 38 (a) is a right side view, FIG. 38 (b) is a front view, and FIG. 38 (c) is a left side view, FIG. 38. (D) is a bottom view, and FIG. 38 (e) is a perspective view.

The bridge portion 144 of the first end lid 140b in the present embodiment includes one wide bridge 147 and two narrow bridges 148. One end of one width bridge 147 is connected to one end of two width bridges 148 at the substantially center of the first end lid 140b, and the other end of one width bridge 147 and two width bridges 148. The portion is connected to the annulus portion 141. The bridge portion 144 has a radial shape as a whole, and the three regions surrounded by the annulus portion 141 and the bridge portion 144 are vents 146. The vent 146 is an opening that communicates the internal space 107 of the main body 100 with the external space.
In the present embodiment, the second end lid 150a can be the same as the first end lid 140a.

*** Explanation of action effect ***
The first end lid 140b has a radial bridge portion 144 formed integrally with the annulus portion 141 to improve the rigidity. Further, the rigidity of the light source unit 10 to which the first end lid 140b is attached and the illuminating tool 1 using the light source unit 10 are also improved.
In the first end lid 140b, at least one of the radial bridge portions 144 is formed as a wide bridge 147 and is integrally formed with the annular portion 141, and the wide bridge 147 is stronger than the narrow bridge 148. be. Therefore, the wide bridge 147 can be used as a fall prevention mechanism for attaching a wire (not shown) in order to prevent the luminaire 1 attached to the luminaire from falling or loosening. The wire (not shown) is attached only to the wide bridge 147 by winding it around the wide bridge 147.
Since the wide bridge 147 has a flat surface portion wider than that of the narrow bridge 148, it is easy to clearly indicate that it is a fall prevention mechanism for attaching a wire. Although not shown, a method such as pasting, printing, or engraving a printed matter can be used as a method for clearly indicating that the mechanism is a fall prevention mechanism.
Since the first end lid 140b has two narrow bridges 148, the vent 146 can be enlarged. Therefore, the rigidity and heat dissipation of the light source unit 10 and the illuminating tool 1 using the light source unit 10 are improved.

When the same as the first end lid 140b is used as the second end lid 150b, the wide bridge 157 (not shown) can be used as a route for wiring the wiring member 30.

The first end lid of the first to fifth embodiments is a component attached to the main body so as to cover the end of the main body.
The first end lid includes an annular ring portion 141 and a plurality of bridges, one ends of the plurality of bridges are connected to each other, and the other end of the plurality of bridges is connected to the ring portion 141. There is.
The first end lid has a plurality of vents surrounded by a plurality of bridges.

Further, the first end lids of the first to fifth embodiments include an annular ring portion, one width bridge, and one or more width bridges, and one end portion of one width bridge and one. One end of the above narrow bridge is connected, and the other end of one wide bridge and the other end of one or more narrow bridges are connected to the annulus.
The first end lid has a plurality of vents surrounded by an annulus, one wide bridge and one or more narrow bridges.

Embodiment 6.
In the present embodiment, the differences from the first to fifth embodiments will be described.
In this embodiment, an embodiment of the first gasket will be mainly described.

*** Explanation of configuration ***
FIG. 39 is an exploded perspective view illustrating the components of the luminaire according to the sixth embodiment.
FIG. 40 is an exploded perspective view illustrating the components of the luminaire according to the sixth embodiment.
FIG. 41 is a partial cross-sectional perspective view illustrating the internal structure of the light source unit according to the sixth embodiment.
FIG. 42 is a partial cross-sectional perspective view illustrating the internal structure of the light source unit according to the sixth embodiment.
FIG. 43 is a partial perspective sectional view showing the configuration of the first gasket 160 according to the sixth embodiment.
FIG. 44 is a partial cross-sectional view showing the configuration of the first gasket 160 according to the sixth embodiment.

43 and 44 show the first gasket 160 attached to the second end lid 150, but the first gasket 160 is similarly attached to the first end lid 140.

<< 1st end lid 140 >>
As shown in FIG. 40, the first end lid 140 has an annulus 141 as a main portion. The annulus 141 has a donut shape.
As shown in FIG. 42, the annular portion 141 has an annular eaves 149 on the outer edge covering the end 134 of the cover 130.
As shown in FIG. 42, the first end lid 140 has an annular groove 142 for arranging the first gasket 160 and an annular arrangement 1422. The groove portion 142 and the annular arrangement portion 1422 function as the first gasket arrangement portion.
The groove 142 and the annular arrangement 1422 are separated by an annular partition wall 1421.

Hereinafter, the second end lid 150 will be mainly described, but the configuration of the first end lid 140 is the same as the configuration of the second end lid 150.

<< Second end lid 150 >>
As shown in FIGS. 41 and 43, the second end lid 150 has an annular portion 151, a groove portion 152, an annular arrangement portion 1522, a partition wall 1521, a screw hole 153, and a bridge portion 154, and both sides of the bridge portion 154. Two semicircular vents 156 are formed in the air.
The groove portion 152 and the annular arrangement portion 1522 of the second end lid 150 function as the first gasket arrangement portion, and the first gasket 160 can be arranged on the second end lid 150.

<Groove 152>
As shown in FIGS. 43 and 44, the groove portion 152 has a concave shape, and has a groove bottom portion 1523, a groove outer wall portion 1524, and a groove inner wall portion 1525.
The groove outer wall portion 1524 and the groove inner wall portion 1525 are inner side surfaces of the groove and are opposite strip-shaped surfaces.
The groove bottom portion 1523 is the bottom surface of the ring-shaped groove.
The groove inner wall portion 1525 also serves as an outer peripheral surface of the partition wall 1521.
The groove 142 of the first end lid 140 also has the same shape as the groove 152 of the second end lid 150.

<Circular arrangement part 1522>
As shown in FIGS. 43 and 44, the annular arrangement portion 1522 has an orthogonal arrangement bottom surface 1512 and an arrangement elevation 1511.
The arrangement bottom surface 1512 has a ring-shaped surface, and the partition wall 1521 has a strip-shaped annular surface erected from the periphery of the arrangement bottom surface 1512.
The arrangement elevation surface 1511 also serves as an inner peripheral surface of the partition wall 1521.
The annular arrangement portion 1422 of the first end lid 140 also has the same shape as the annular arrangement portion 1522 of the second end lid 150.

<Partition wall 1521>
The partition wall 1521 is an annular convex wall that partitions the groove portion 152 and the annular arrangement portion 1522.
The outer peripheral wall of the partition wall 1521 forms the groove inner wall portion 1525.
The inner peripheral wall of the partition wall 1521 forms the groove inner wall portion 1525.
As shown in FIG. 43, the height of the partition wall 1521 in the central axis O direction is smaller than the height of the annular eaves 159 in the central axis O direction.

<< First Gasket 160 >>
As shown in FIGS. 43 and 44, the first gasket 160 has a cover gasket 161 and a tubular gasket 162.
The cover gasket 161 and the tubular gasket 162 are separated annular parts.
The cover gasket 161 and the tubular gasket 162 are elastic and are made of rubber, silicone or resin.
A gasket is a fixing sealing material used to make a structure airtight and liquidtight.
A good example of a gasket is a rubber ring or rubber sheet or resin ring.

<< Cover Gasket 161 >>
The cover gasket 161 is an annular member having a concave cross section in the radial direction.
As shown in FIGS. 43 and 44, the cover gasket 161 has a concave shape and has a bottom portion 1611, an outer wall portion 1612, and an inner wall portion 1613.
The outer wall portion 1612 and the inner wall portion 1613 are concave inner side surfaces and are opposite strip-shaped surfaces.
The bottom portion 1611 is a concave bottom surface.
The diameter of the outer wall portion 1612 is the same as the outer diameter of the cover 130.
The diameter of the inner wall portion 1613 is the same as the inner diameter of the cover 130.
The bottom portion 1611 is in close contact with the end portion 134 of the cover 130 on the entire circumference.

<< Cylinder Gasket 162 >>
The tubular gasket 162 is an annular member having an L-shaped cross section in the radial direction.
As shown in FIGS. 43 and 44, the tubular gasket 162 has an orthogonal mounting portion sealing portion 1621 and an end sealing portion 1622.
The mounting portion sealing portion 1621 has a ring shape, and has a ring lower surface 1623 as a lower surface and a ring upper surface 1626 as an upper surface.
The end sealing portion 1622 has a tubular shape, and has an annular outer wall surface 1624 as an outer peripheral surface and an annular inner wall surface 1625 as an inner peripheral surface.
The diameter of the annular outer wall surface 1624 of the tubular gasket 162 is the same as the inner diameter of the partition wall 1521.
The diameter of the annular inner wall surface 1625 of the tubular portion gasket 162 is the same as the outer diameter of the tubular portion 101.
The outer peripheral shape of the annular outer wall surface 1624 of the tubular portion gasket 162 is circular, but the inner peripheral shape of the annular inner wall surface 1625 is a regular hexadecagon, which is the same regular hexadecagon as the outer peripheral shape of the tubular portion 101.
The ring upper surface 1626 of the tubular gasket 162 is in close contact with the end 104 of the tubular 101 on the entire circumference.
The ring lower surface 1623 of the tubular gasket 162 is in close contact with the arrangement bottom surface 1512 of the second end lid 150 on the entire circumference.

As shown in FIGS. 43 and 44, the cover gasket 161 is pressed in a state where the second end lid 150 is attached to the main body 100, and the end 134 of the cover 130 elastically deforms the cover gasket 161. Let it sink to a predetermined depth. The predetermined depth is a depth at which liquidtightness can be maintained, and is approximately 1 mm.
Then, with the second end lid 150 attached to the main body 100, the tubular gasket 162 is pressed, and the end 104 of the tubular 101 elastically deforms the tubular gasket 162 to a predetermined depth. It's sinking so much. The predetermined depth is a depth at which liquidtightness can be maintained, and is approximately 1 mm.

Here, the main body 100 and the cover 130 are made of different materials and have different linear expansion coefficients. In the present embodiment, the main body 100 is made of a metal material such as aluminum, and the cover 130 is made of a glass material. In this case, the coefficient of linear expansion of the main body 100 is larger than that of the cover 130, and the amount of expansion and contraction due to the temperature change is larger in the main body 100 than in the cover 130. Therefore, the lengths of the main body 100 and the cover 130 are set so that the minimum value LBmin of the length dimension in the central axis O direction of the main body 100 becomes larger than the maximum value LCmax of the length dimension in the central axis O direction of the cover 130. It is preferable to determine the dimensions (LBmin> LCmax). In this way, even if expansion and contraction occurs due to a temperature change, excessive stress is not applied to the cover 130, so that damage to the cover can be prevented.
Then, in an environment where the length dimension of the main body 100 is the maximum value LBmax, it is preferable that the end 134 of the cover 130 elastically deforms the cover gasket 161 and sinks by a predetermined depth. The predetermined depth is a depth at which liquidtightness can be maintained, and is approximately 1 mm.

<Effect>
The functions of the first gasket 160 are as follows.
(1) Eliminate gaps between different members (between parts) and ensure liquidtightness (watertightness, waterproofness).
(2) Absorption of stress caused by the difference in the amount of expansion and contraction generated between members having different expansion coefficients.
(3) Maintaining liquidtightness (watertightness, waterproofness) when the difference in the amount of expansion and contraction occurs.
(4) Improved impact resistance (especially when the cover 130 is made of glass).
(5) Relaxation of dimensional tolerances between different members (parts).

<< First to third modified examples >>
45 is a partial cross-sectional view for explaining a modified example in which the shape of the cover gasket is different. FIG. 45 (a) shows a first modified example, FIG. 45 (b) shows a second modified example, and FIG. 45 shows. (C) shows a third modification.

<First modification>
As shown in FIG. 45 (a), in the first modification, the cover gasket 161a faces the groove outer wall portion 1524 of the second end lid 150 via the gap 1617, and the gap 1617 is filled with an adhesive. 190 is filled.

By using the adhesive 190, the cover 130, the cover gasket 161a and the second end lid 150 are firmly fixed, and the cover 130 and the cover gasket 161a can be prevented from falling off.
Further, since the gap 1617 is provided only on the outer peripheral surface 132 side of the cover 130, it is possible to prevent the adhesive 190 from entering the inner peripheral surface 133 side of the cover 130.

<Second modification>
As shown in FIG. 45 (b), in the second modification, the cover gasket 161b faces the groove outer wall portion 1524 of the second end lid 150c via the gap 1617.
The cover gasket 161b is provided with a second groove portion 1618, and the groove outer wall portion 1524 of the annular portion 151a of the second end lid 150c is provided with an outer wall groove portion 1526. Then, the adhesive 190 is filled in the entire gap 1617, the second groove portion 1618, and the outer wall groove portion 1526.

By filling the entire gap 1617, the second groove portion 1618, and the outer wall groove portion 1526 with the adhesive 190, the cover gasket 161b, the adhesive 190, and the second end lid 150c exert an anchor effect on each other. The cover 130, the cover gasket 161b, and the second end lid 150c are more firmly fixed, and the cover 130 and the cover gasket 161b can be prevented from falling off.
Further, since the gap 1617 is provided only on the outer peripheral surface 132 side of the cover 130, it is possible to prevent the adhesive 190 from entering the inner peripheral surface 133 side of the cover 130.

<Third modification example>
As shown in FIG. 45 (c), in the third modification, the cover gasket 161c faces the groove outer wall portion 1524 of the second end lid 150 via a gap.
Further, the bottom surface 1614 of the cover gasket 161c facing the groove bottom portion 1523 of the second end lid 150 is inclined toward the outside in the radial direction, and the cross-sectional shape in the radial direction forms a triangular gap 1617a. ..
The gap 1617 between the groove outer wall portion 1524 of the second end lid 150 and the cover gasket 161c and the gap 1617a between the groove bottom portion 1523 and the cover gasket 161c are filled with the adhesive 190.

Since the bottom surface of the cover gasket 161c facing the groove bottom portion 1523 of the second end lid 150 is inclined outward in the radial direction to form a triangular gap 1617a, a liquid or gel-like adhesive 190 is formed during bonding. Can be guided outward in the radial direction of the cover 130.
Then, by using the adhesive 190, the cover 130, the cover gasket 161c and the second end lid 150 are firmly fixed, and the cover 130 and the cover gasket 161c can be prevented from falling off.

<Adhesive action>
The adhesive 190 used in the first to third modifications also has the following effects.
(1) Absorption of stress due to the difference in the amount of expansion and contraction generated between members having different expansion coefficients.
(2) Maintaining liquidtightness (watertightness, waterproofness) when the above difference in expansion and contraction occurs.
(3) Improved impact resistance (especially when the cover 130 is made of glass).

<< Fourth variant >>
FIG. 46 is a partial cross-sectional view for explaining a fourth modification in which the shape of the cover gasket is different, and FIG. 46 (a) shows a state before the cover 130 is attached to the second end lid 150. (B) of FIG. 46 shows a state in which the cover 130 is attached to the second end lid 150 via the cover gasket 161d.

As shown in FIG. 46 (a), the cover gasket 161d has an H-shaped cross section in the radial direction.
In the cover gasket 161d, an outer wall portion 1612 and an inner wall portion 1613 are formed on the side where the end portion 134 of the cover 130 is located, and the portion sandwiched between the outer wall portion 1612 and the inner wall portion 1613 is a gap.
In the cover gasket 161d, the outer leg portion 1615 and the inner leg portion 1616 are formed on the side of the second end lid 150 where the groove bottom portion 1523 is located, and the portion sandwiched between the outer leg portion 1615 and the inner leg portion is a gap. It has become.

As shown in FIG. 46 (b), when the end 134 of the cover 130 presses the bottom 1611 of the cover gasket 161d toward the groove bottom 1523 of the second end lid 150, the outer leg 1615 becomes the second end. The inner leg portion 1616 is in close contact with the groove outer wall portion 1524 side of the lid 150 and with the groove inner wall portion 1525 side of the second end lid 150 while being elastically deformed.
Then, the outer wall portion 1612 is strongly adhered to the outer peripheral surface 132 of the cover 130, and the inner wall portion 1613 is strongly adhered to the inner peripheral surface 133 of the cover 130 with elastic deformation.

The fourth modification is a suitable shape because when the cover 130 is formed by using a resin material having a large coefficient of linear expansion, it can cope with a large amount of expansion and contraction due to a temperature change.

<< 5th to 6th modified examples >>
FIG. 47 is a partial cross-sectional view for explaining a modified example in which the shape of the second end lid is different. FIG. 47 (a) shows a fifth modified example, and FIG. 47 (b) shows a sixth modified example. ing.

<Fifth modification>
As shown in FIG. 47 (a), in the fifth modification, the second end lid 150d is formed with a guide guide 1527 projecting substantially in the center of the groove bottom portion 1523.
The radial cross-sectional shape of the guide guide 1527 is semi-circular or dome-shaped.
In the guide guide 1527, when the cover gasket 161d is pressed, the outer leg portion 1615 is on the groove outer wall portion 1524 side of the second end lid 150d, and the inner leg portion 1616 is on the groove inner wall portion 1525 side of the second end lid 150d. Induces elastic deformation.
As described above, the guide guide 1527 is suitable when the cover gasket 161d described in the fourth modification is used. The liquidtightness (watertightness, waterproofness) can be improved by the guidance guide 1527.

<6th modification>
As shown in FIG. 47 (b), in the sixth modification, the second end lid 150e is formed with a guide guide 1528 projecting substantially in the center of the groove bottom portion 1523.
The radial cross-sectional shape of the guide guide 1528 is convex.
When the cover gasket 161d is pressed, the guide guide 1528 has the outer leg portion 1615 on the groove outer wall portion 1524 side of the second end lid 150e and the inner leg portion 1616 on the groove inner wall portion 1525 side of the second end lid 150e. , Induces elastic deformation.
Further, the upper surface 1529 of the guide guide 1528 is in close contact with the top portion 1619 of the cover gasket 161d.
As described above, the guide guide 1527 is suitable when the cover gasket 161d described in the fourth modification is used.
Since the adhesion range of the cover gasket 161d is widened by the guide guide 1528, the liquidtightness (watertightness, waterproofness) can be improved.

<< 7th to 9th modifications >>
FIG. 48 is a partial cross-sectional view illustrating a seventh modification in which the shape of the first gasket is different.
FIG. 49 is a partial cross-sectional view illustrating an eighth modified example in which the shape of the first gasket is different.
FIG. 50 is a partial cross-sectional view illustrating a ninth modification in which the shape of the first gasket and the shape of the lid are different.

<7th modification>
As shown in FIG. 48, in the seventh modification, the cover gasket portion and the tubular gasket portion are integrated in the first gasket 160a. Specifically, the cover gasket portion and the tubular gasket portion are connected by a connecting portion 1608.
As a result, the assemblability of the light source unit is improved, and the mold investment efficiency of the first gasket is improved.

<8th modification>
As shown in FIG. 49, in the eighth modification, the cover gasket portion and the tubular gasket portion of the first gasket 160b are integrated by the connecting portion 1608.
The connecting portion 1608 connects the portion of the cover gasket and the portion of the tubular gasket.
The connection portion 1608 is provided with a through hole 1609.
Further, a through hole 155 is provided in the partition wall 1521 of the second end lid 150.
The wiring member 30 is soldered to the terminal 123 of the substrate 122 and is pulled out to the outside through the through hole 1609 and the through hole 155.
The through hole 1609 is aligned so as to communicate with the through hole 155, and is used as a through hole through which the wiring member 30 is inserted.
The central axis of the through hole 1609 provided in the first gasket 160b and the central axis of the through hole 155 provided in the second end lid 150 are the same central axis.
Moreover, the cross-sectional area orthogonal to the penetrating direction of the through hole 1609 provided in the first gasket 160b is smaller than the cross-sectional area orthogonal to the penetrating direction of the through hole 155 provided in the second end lid 150.
Therefore, it is possible to prevent the wiring member 30 from coming into contact with the inner wall and the edge of the through hole 155 provided in the second end lid 150. As a result, it is possible to prevent the exterior and the insulating coating of the wiring member 30 from being damaged, and the internal conductor of the wiring member 30 from coming into contact with or being damaged by the inner wall and the edge of the through hole 155. It can be protected from defects such as entanglement and disconnection.
In FIG. 49, a plurality of wiring members 30 are inserted through the through holes 1609, but in order to further improve the liquidtightness, the through holes 1609 are inserted so that each of the plurality of wiring members 30 is inserted independently. May be provided in plurality. At that time, it is desirable that the diameter of the through hole 1609 be matched with the diameter of the wiring member 30. Alternatively, it is desirable to make the diameter of the through hole 1609 slightly smaller than the diameter of the wiring member 30 to improve airtightness and watertightness.
Alternatively, the through hole 1609 may be formed by thinning the thickness of the connecting portion 1608 in the central axis O direction and penetrating the wiring member 30 through the connecting portion 1608 without forming the through hole 1609 in advance. By manufacturing the connecting portion 1608 with a flexible material, the inner wall of the through hole 1609 is in close contact with the outer periphery of the wiring member 30, so that the airtightness and watertightness are improved. Further, it is not necessary to align the through hole 1609 and the through hole 155 so as to communicate with each other, and the assembling property is improved.
Further, the gap between the through hole 155 and the wiring member 30 may be filled with an adhesive to improve airtightness and watertightness.

<9th modification>
As shown in FIG. 50, in the ninth modification, the cover gasket portion and the tubular gasket portion of the first gasket 160c are integrated by the connecting portion 1608.
The connecting portion 1608 connects the portion of the cover gasket and the portion of the tubular gasket.
The connection portion 1608 is provided with a through hole 1609.
Further, a through hole 155 is provided in the connecting portion 1608 of the second end lid 150f.
The through hole 1609 is aligned so as to communicate with the through hole 155 provided in the second end lid 150f, and is used as a through hole through which the wiring member 30 is inserted.
In the ninth modification, the partition wall 1521 is not formed in the portion of the second end lid 150f where the through hole 155 is formed. As a result, the through hole 1609 provided in the first gasket 160c and the through hole 155 provided in the second end lid 150f can be easily aligned with each other, and the assembling property is improved.
Further, in the ninth modification, the length of the through hole 1609 is longer than that in the eighth modification. Therefore, by manufacturing the connecting portion 1608 with a flexible material, the distance that the inner wall of the through hole 1609 comes into close contact with the outer circumference of the wiring member 30 becomes longer, and the airtightness and watertightness are improved.
In FIG. 50, a plurality of wiring members 30 are inserted through the through holes 1609, but in order to further improve the liquidtightness, the through holes 1609 are inserted so that each of the plurality of wiring members 30 is inserted independently. May be provided in plurality.
Further, the gap between the through hole 155 and the wiring member 30 may be filled with an adhesive to improve airtightness and watertightness.
As in the eighth modification, the central axis of the through hole 1609 provided in the first gasket 160c and the central axis of the through hole 155 provided in the second end lid 150 are the same central axis. Moreover, the cross-sectional area orthogonal to the penetrating direction of the through hole 1609 provided in the first gasket 160c is smaller than the cross-sectional area orthogonal to the penetrating direction of the through hole 155 provided in the second end lid 150.
Therefore, it is possible to prevent the wiring member 30 from coming into contact with the inner wall and the edge of the through hole 155 provided in the second end lid 150. As a result, it is possible to prevent the exterior and the insulating coating of the wiring member 30 from being damaged, and the internal conductor of the wiring member 30 from coming into contact with or being damaged by the inner wall and the edge of the through hole 155. It can be protected from defects such as entanglement and disconnection.

<10th modification>
As shown in FIG. 51, the partition wall 1421 and the annular arrangement portion 1422 may be provided on the first end lid 140a shown in the fourth embodiment.
The outer peripheral shape of the tubular gasket 162 attached to the first end lid 140a shown in FIG. 51 is circular, but the inner peripheral shape of the tubular gasket 162 is the same as the outer peripheral shape of the tubular portion 101. That is, when the outer peripheral shape of the tubular portion 101 is a regular hexadecagon, the inner peripheral shape of the annular inner wall surface 1625 of the tubular portion gasket 162 is a regular hexadecagon.

<11th modification>
As shown in FIG. 52, the partition wall 1421 and the annular arrangement portion 1422 may be provided on the first end lid 140b shown in the fifth embodiment. The first end lid 140b is attached to a tubular portion 101 having a regular dodecagonal outer peripheral shape.
The outer peripheral shape of the tubular gasket 162 attached to the first end lid 140a shown in FIG. 52 is circular, but since the outer peripheral shape of the tubular portion 101 is a regular dodecagon, the annular inner wall surface 1625 of the tubular gasket 162 The inner peripheral shape is a regular dodecagon.

<12th modification>
As shown in FIG. 53, the cross-sectional shape of the tubular gasket 162 is not limited to the L-shape.
As shown in FIG. 53 (a), the tubular gasket 162 may have a J-shape or a U-shape in the cross-sectional shape in the radial direction.
The tubular gasket 162 has an extension 1627 that is in close contact with the inner circumference of the tubular 101.
The extension portion 1627 is an annular wall whose outer peripheral diameter coincides with the inner peripheral diameter of the tubular portion 101.

As shown in FIG. 53 (b), the tubular gasket 162 may have a curved cross-sectional shape in the radial direction.
The end sealing portion 1622 of the tubular portion gasket 162 has a right-angled triangular cross-sectional shape in the radial direction, and has an inclination in which one side is in close contact with the inner circumference of the tubular portion 101 and the other side is in close contact with the annular arrangement portion 1522. It has a wall 1628.
The inclined wall 1628 is an annular tapered wall whose outer peripheral diameter matches the inner peripheral diameter of the tubular portion 101.

As shown in FIG. 53 (c), the tubular gasket 162 may have a crank-shaped cross-sectional shape in the radial direction.
The tubular gasket 162 has a Z-shaped cross section in the radial direction, and has an annular eaves 1629 at the tip of the mounting portion sealing portion 1621.
The annular eaves 1629 is an eave that extends radially outward from the tip of the mounting portion sealing portion 1621, and is a roof that is in close contact with the upper surface from the corner of the partition wall 1521.

<13th modification>
As shown in FIG. 54, the cover gasket 161d is not limited to the H shape.
As shown in FIG. 54 (a), two inwardly convex ring portions 1601 may be provided on the cover gasket 161d.
The inner convex ring portion 1601 is a protrusion protruding inward from the opposite inner side surface of the tips of the outer wall portion 1612 and the inner wall portion 1613.
The inwardly convex ring portion 1601 is an annular protrusion having a semicircular cross-sectional shape in the radial direction.
The inwardly convex ring portion 1601 ensures that the cover gasket 161d is in close contact with the inner and outer circumferences of the cover 130.

As shown in FIG. 54 (b), two outer convex ring portions 1602 may be provided on the cover gasket 161d.
The outer convex ring portion 1602 is a protrusion protruding outward from the outer surface of the tip of the outer leg portion 1615 and the inner leg portion 1616.
The outer convex ring portion 1602 is an annular protrusion having a semicircular cross-sectional shape in the radial direction.
The outer convex ring portion 1602 ensures that the cover gasket 161d is in close contact with the inner and outer circumferences of the groove portion 152.

As shown in FIG. 54 (c), two inner convex ring portions 1601 and two outer convex ring portions 1602 may be provided on the cover gasket 161d.
Although not shown, the inner convex ring portion 1601 may be provided inside the tips of the outer wall portion 1612 and the inner wall portion 1613, and the outer convex ring portion 1602 may be provided on the outer side.
Further, the inner convex ring portion 1601 may be provided inside the tips of the outer leg portion 1615 and the inner leg portion 1616, and the outer convex ring portion 1602 may be provided on the outer side.

Embodiment 7.
In the present embodiment, the differences from the first to sixth embodiments will be described.
In the present embodiment, a base connection structure having improved waterproofness and insulation will be mainly described.
55 and 56 are exploded perspective views illustrating the components of the support unit 20a according to the seventh embodiment.
FIG. 57 is a partial cross-sectional view illustrating the structure of the support unit 20a according to the seventh embodiment.

*** Explanation of configuration ***
<< Support unit 20a >>
The support unit 20a is attached with a power receiving end 200 that receives lighting power for lighting the light emitting element 121 from the outside, and a wiring member 30 that transmits the lighting power from the power receiving end 200 to the substrate 122 on which the light emitting element 121 is mounted. The wiring path to be arranged is formed.
The support unit 20a has a power receiving end 200, a support plate 218, a tubular support 210a, a connecting portion 230a, a second gasket 250a, and a screw 260 that integrates these.
The support unit 20a has a strong structure in which the support plate 218, the support 210a, the second gasket 250a, and the connecting portion 230a are integrated by screws 260.

One end of the support 210a is attached to the connecting portion 230a, and the other end is attached to the base housing 201.
The support body 210a is composed of a support body 2100 arranged inside and a support cover body 2101 arranged outside so as to cover the support body 2100 in a state of being fitted to the base housing 201.
The support cover body 2101 is attached to the connecting portion 230a by a screw 260 with the support main body 2100 and the second gasket 250a in between. In other words, with the support cover body 2101 attached to the connecting portion 230a, the support main body 2100 and the second gasket 250a are sandwiched between the support cover body 2101 and the connecting portion 230a.

<Support body 2100>
The support main body 2100 is manufactured using a material that is less likely to deteriorate over time than a resin material and has excellent mechanical strength. In the present embodiment, the support main body 2100 is manufactured by using a metal material such as aluminum, a ceramic material, or the like.
When the illuminator 1 requires a larger output (brightness), the light source unit 10 may become larger and heavier. Since the metal material or the ceramic material is excellent in load capacity as compared with the resin material, it is suitable as a material for the support main body 2100 depending on the degree of increase in the weight of the light source unit 10.
In addition, the metal material or ceramic material is also excellent in environmental performance (light resistance, weather resistance) as compared with the resin material, and can maintain the strength for a long period of time. Therefore, the metal material or the ceramic material can be used. By adopting the support body 2100 manufactured in use, it also contributes to maintaining the long-term quality of the luminaire 1.

One end of the support body 2100 is fixed to the connecting portion 230a, and the other end is attached to the base housing 201.
The support main body 2100 has a cylindrical support main body tubular portion 2120, and the support main body tubular portion 2120 has a cylindrical cylindrical portion 2150 and a screw portion 2110 into which the base housing 201 is fitted. ing.
The outer diameter of the cylindrical portion 2150 is larger than the outer diameter of the screwed portion 2110, and the cylindrical portion 2150 and the screwed portion 2110 are continuous via the stepped portion 2151.
The first end portion 2160 of the support main body tubular portion 2120 is a base side end portion.
The second end portion 2170 of the support main body tubular portion 2120 is a connecting portion side end portion, and has a support main body flange portion 2130. The support main body flange portion 2130 has an annular shape, and functions as a connecting portion mounting portion that structurally supports and connects the connecting portion 230a.

A gasket is arranged between the support 210a and the connecting portion 230a.
The end face of the support main body flange portion 2130 on the connecting portion 230a side functions as a second gasket arranging portion for arranging the second gasket 250a.
The support main body flange portion 2130 is formed with separating recesses 2140 (at intervals of approximately 120 degrees) at three locations on the peripheral edge portion so that the support main body 2100 and the screw 260 do not come into direct contact with each other. The separating recess 2140 is a semicircular recess. The separation recesses 2140 are formed according to the number of connecting portions 230a and screws 260, and may be formed in an amount of four or more, or may be arranged at different intervals (angles).

<Support cover body 2101>
The support cover body 2101 is preferably manufactured using a material having excellent electrical insulation and environmental resistance (light resistance, weather resistance). In the present embodiment, the support cover body 2101 is manufactured by using a resin material such as polybutylene terephthalate (PBT), a ceramic material, or the like.
The support cover body 2101 is arranged outside the support main body 2100.

The support cover body 2101 is attached to the connecting portion 230a using three screws 260 in a state of covering the second end portion 2170 side, which is the connecting portion side end portion of the support main body 2100.
The support cover body 2101 has a tubular support cover body tubular portion 2121 that covers the cylindrical portion 2150 of the support main body tubular portion 2120.

The first end 2161 of the support cover body tube 2121 is the end on the base side, and the first end 2161 is an eave that is bent 90 degrees inward from the tubular body of the support cover body 2121. An annular portion 2162 of the shape is formed.
The eaves-shaped annular portion 2162 of the first end portion 2161 of the support cover body cylinder portion 2121 spans the entire circumference in the gap provided between the base housing 201 and the step portion 2151 of the support body cylinder portion 2120. It is fitted.

The second end portion 2171 of the support cover body tubular portion 2121 is the end portion on the connecting portion 230a side, and has the support cover body flange portion 2131. The support cover body flange portion 2131 has an annular shape, and functions as a connecting portion mounting portion that structurally supports and connects the connecting portion 230a.

An inner end surface 2153 and an outer end surface 2152 are formed on the end surface of the support cover body flange portion 2131 on the connecting portion 230a side of the second end portion 2171 of the support cover body cylinder portion 2121. The inner end surface 2153 and the outer end surface 2152 are annular surfaces. The inner end surface 2153 is inside the outer end surface 2152 and is one step higher than the outer end surface 2152.

Screw bosses 2142 having screw holes 2141 are formed at three positions on the peripheral edge of the support cover body flange portion 2131 at intervals of approximately 120 degrees. The screw boss 2142 and the screw hole 2141 are formed on the inner end surface 2153. The screw boss 2142 projects in a semicircular shape toward the center. The shape of the screw boss 2142 corresponds to the shape of the separation recess 2140, and the screw boss 2142 is arranged in the separation recess 2140.

The screw hole 2141 penetrates the screw boss 2142, and the screw 260 for attaching the connecting portion 230a is inserted into the screw hole 2141. The screw holes 2141 are formed according to the number of connecting portions 230a and 260 screws, and four or more screw holes may be formed or arranged at different intervals (angles).
The end face of the support cover body flange portion 2131 on the connecting portion 230a side functions as a second gasket arranging portion for arranging the second gasket 250a together with the end surface of the support main body flange portion 2130 on the connecting portion 230a side. The second gasket 250a comes into surface contact with a wide surface formed by the end surface of the support main body flange portion 2130 on the connecting portion 230a side and the end surface of the support cover body flange portion 2131 on the connecting portion 230a side.
In a state where the support cover body 2101 covers the support body 2100, the support cover body collar 2131 is arranged outside the support body collar 2130.

In the present embodiment, when the support main body 2100 is manufactured using a metal material such as aluminum, that is, a conductive material, the support main body 2100 is fitted with a base to prevent electric shock, ground fault, etc., and is a conductive portion. It is necessary to electrically insulate the support main body 2100. The support cover body 2101 has a function of electrically insulating the support main body 2100 from the outside of the illuminator 1.

<Connecting part 230a>
The connecting portion 230a connects and fixes the light source unit 10 and the support unit 20a to both ends.
The connecting portion 230a functions as a heat dissipation path for transferring the heat generated from the light source unit 10 to the outside of the illuminator 1.

The first end portion 238 of the connecting portion 230a is an end portion on the side of the support 210a and has a fastening portion 2311. The fastening portion 2311 functions as a support mounting portion to be fastened to the support 210a. The end face of the fastening portion 2311 on the support body 210a side functions as a second gasket arranging portion for arranging the second gasket 250a. The end surface of the fastening portion 2311 on the support body 210a side is a wide flat surface, and the second gasket 250a comes into surface contact with the fastening portion 2311.
A peripheral wall 2471 that slightly rises toward the support 210a is formed on the peripheral edge of the end surface of the connecting portion 230a on the support 210a side. The inner peripheral shape of the peripheral wall 2471 is the same as the outer peripheral shape of the second gasket 250a. The height of the peripheral wall 2471 is slightly smaller than the thickness of the second gasket 250a.
Wiring holes 248 for inserting the wiring member 30 are formed in the substantially central portion inside the peripheral wall 2471 on the end surface on the support body 210a side, and three wiring holes 248 are arranged on the peripheral wall 2471 side at intervals of approximately 120 degrees. A screw hole 2481 is formed. Screws 260 for attaching the support unit 20a to the support 210a are screwed into the screw holes 2481. The screw holes 2481 are formed according to the number of the support unit 20a and the screws 260, and four or more screw holes may be formed or may be arranged at different intervals (angles).

The second end portion 239 of the connecting portion 230a is a light source unit side end portion, and has an annulus portion 2331 connected to the light source unit 10.
The ring portion 2331 functions as a light source unit support portion.
The annulus 2331 is formed with three screw holes 2341 arranged at intervals of approximately 120 degrees. A screw 50 for attaching the support unit 20a to the light source unit 10 is screwed into the screw hole 2341. The screw holes 234 are formed according to the number of the light source unit 10 and the screws 50, and four or more screw holes 234 may be formed or may be arranged at different intervals (angles).

The annulus 2331 has a shape corresponding to the various second end lids of the above-described embodiment.
The annulus 2331 is formed with a number of bridges corresponding to the various second end lids of the embodiments described above. The bridge crosses the center of the annulus 2331, and in the present embodiment, three fan-shaped vents 2461 formed by the annulus 2331 and the bridge are formed.

One of the bridges is the wide bridge 2411 and the other two are the narrow bridges 2421. The wide bridge 2411 has the same width as the wide bridge 157, and the wide bridge 2411 is formed with a long groove portion 2371 from the center to the outside. A long elliptical third gasket 40 is arranged in the groove portion 2371, and a wiring member 30 is arranged inside the third gasket 40. The groove portion 2371 functions as a third gasket arranging portion and also functions as an electric wire pair arranging portion. The third gasket 40 liquid-tightly seals the wiring path formed between the light source unit 10 and the support unit 20a.

The fastening portion 2311 and the annulus portion 2331 are connected by a projecting portion 2351.
The projecting portion 2351 has three heat radiating plates 2401 arranged in the radial direction at substantially equal angles from the central axis O, and a cylindrical portion 2402 outside the heat radiating plate 2401. The three heat radiating plates 2401 are rectangular or square, and are arranged parallel to the central axis O and radially from the central axis O at an angle of approximately 120 degrees. The cylindrical portion 2402 is a cylinder that connects the fastening portion 2311 and the annular portion 2331. The cylindrical portion 2402 is arranged at intervals of approximately 120 degrees corresponding to the three screw holes 2481, and screw holes 2481 are formed inside the cylindrical portion 2402 from the fastening portion 2311 toward the annular portion 2331. ..
In the projecting portion 2351, there are three projecting spaces 2491 separated by three heat radiation plates 2401. The projecting space 2491 has a shape in which a cylinder is reduced to one-third, one end of the projecting space 2491 is directly connected to the internal space 107, and the outer periphery of the projecting space 2491 is directly connected to the outside air. The protrusion space 2491 is a space that extends the internal space 107, and the diameters of the protrusion space 2491 and the internal space 107 are the same. Since the protrusion space 2491 and the internal space 107 are continuous and there are no obstacles except for the three bridges that overlap with the heat dissipation plate, the atmosphere can freely pass through the protrusion space 2491 and the internal space 107.

One end of the heat radiating plate 2401 in the central axial direction is connected to three bridges of the annular portion 2331.
The other end of the heat radiating plate 2401 in the central axial direction is coupled to the fastening portion 2311.
The three radial bridges of the annulus 2331 are formed at the ends of the projecting portions 2351, and the three bridges and the three heat dissipation plates 2401 are continuous.
The heat transferred from the main body 100 is transmitted to the annular portion 2331 and the three bridges, and further to the projecting portion 2351, and is dissipated to the outside air from the three heat radiating plates 2401. The main body 100, the annulus 2331, and the projecting portion 2351 have a function as a heat dissipation path.
At the center of the projecting portion 2351, three heat radiation plates 2401 are joined, and an insertion portion 2361 for inserting the wiring member 30 is formed on the central axis O. The insertion portion 2361 functions as a wire pair arrangement portion.

<Second gasket 250a>
The second gasket 250a is manufactured by using an insulating material having an electrically insulating property.
The second gasket 250a is elastic and is manufactured using a rubber, silicone or resin material.
A gasket is a fixing sealing material used to make a structure airtight and liquidtight.

The second gasket 250a has an annular shape and a flat plate shape, has an outer shape corresponding to the support 210a and the connecting portion 230a, and has a substantially triangular shape that fits into the support 210a or the connecting portion 230a.

<Wiring hole 2501 of the second gasket 250a>
The second gasket 250a is formed with a wiring hole 2501 that is penetrated in a substantially central portion for inserting the wiring member 30. The wiring hole 2501 is a circular opening formed in the center of the second gasket 250a. The diameter of the wiring hole 2501 is smaller than the inner diameter of the cylindrical portion 2150.

<Thickness of the second gasket 250a>
In the second gasket 250a, an inner thickness portion 2503 is formed around the wiring hole 2501. A thin portion 2504 thinner than the inner thick portion 2503 is formed around the inner thick portion 2503. An outer thick portion 2505 thicker than the thin portion 2504 is formed around the thin portion 2504.
The inner thickness portion 2503 is formed with semicircular recesses 2506 corresponding to the screw bosses 2142 at three locations at intervals of approximately 120 degrees. The shape of the recess 2506 corresponds to the shape of the separation recess 2140, and the recess 2506 and the separation recess 2140 have the same inner shape as the outer shape of the screw boss 2142.
In the second gasket 250a, the inner thick portion 2503, the thin portion 2504, and the outer thick portion 2505 form a recess having the thin portion 2504 as the bottom surface.

<Shape of 2nd gasket 250a>
The shape of the surface of the second gasket 250a on the support body 210a side corresponds to the end surface of the support main body flange portion 2130 on the connecting portion 230a side, and corresponds to the end surface of the support cover body flange portion 2131 on the connecting portion 230a side. The shape.
The entire surface of the flange portion 2130 of the support body on the connecting portion 230a side is covered with the surface of the second gasket 250a on the support 210a side, except for the outer peripheral edge.
More specifically, the shape of the inner end surface 2153 on the end surface of the support main body flange 2130 on the connecting portion 230a side is the same as the shape of the thin portion 2504 on the end surface of the second gasket 250a on the support 210a side. The inner end surface 2153 is covered with the thin portion 2504.
The inner end surface 2153 of the support main body tubular portion 2120 is in close contact with the thin portion 2504 so as to be fitted in the recess formed by the inner thick portion 2503, the thin portion 2504, and the outer thick portion 2505.

Further, the inner half of the outer end surface 2152 on the end surface of the support main body flange 2130 on the connecting portion 230a side is covered by the outer thickness portion 2505 on the end surface of the second gasket 250a on the support 210a side, and is outside the outer end surface 2152. The outer periphery of the half is covered with a peripheral wall 2471.

The shape of the surface of the second gasket 250a on the connecting portion 230a side corresponds to the end surface of the fastening portion 2311 on the support 210a side. The entire surface of the end face of the second gasket 250a on the connecting portion 230a side is covered with the end face of the fastening portion 2311 on the support 210a side.

Further, the outer peripheral shape formed on the edge of the second gasket 250a corresponds to the shape of the inner circumference of the peripheral wall 2471. That is, the outer peripheral shape of the outer thickness portion 2505 of the second gasket 250a is the same as the inner peripheral shape of the peripheral wall 2471, and the outer peripheral shape of the second gasket 250a is entirely covered with the peripheral wall 2471. Therefore, the second gasket 250a cannot be seen from the outside.

When the second gasket 250a is fitted to the support 210a, the second gasket 250a is in surface contact with the end surface of the support cover body flange 2131 on the connecting portion 230a side and the end surface of the support cover body flange 2131 on the connecting portion 230a side. do. Further, in a state where the second gasket 250a is fitted with the connecting portion 230a, the second gasket 250a comes into surface contact with the end surface of the fastening portion 2311 on the support 210a side.

As described above, one surface of the second gasket 250a covers the entire end surface of the cylindrical portion 2150. Further, the entire other surface and the side surface of the second gasket 250a are covered with the connecting portion 230a.

<Screw hole 2502 of the second gasket 250a>
Then, three screw holes 2502 are formed in the thin portion 2504 on the edge side of the wiring hole 2501 so as to penetrate the second gasket 250a at intervals of approximately 120 degrees.
With the second gasket 250a fitted to the support 210a, the three screw holes 2502 of the second gasket 250a and the three screw holes 2141 of the support cover body 2101 are arranged at overlapping positions and communicate with each other. With the second gasket 250a fitted to the support 210a, the three screw holes 2502 of the second gasket 250a and the screw holes 2341 of the ring portion 2331 are arranged at overlapping positions and communicate with each other.

A screw 260 screwed into the screw hole 2341 of the annular portion 2331 is inserted into the three screw holes 2502 from the screw hole 2141 side of the support cover body 2101.
The support 210a is attached to the connecting portion 230a by the screw 260, and the second gasket 250a is pressed from both sides to the support 210a and the connecting portion 230a in a state where the peripheral wall 2471 and the outer end surface 2152 are in contact with each other. It is held in close contact.

<Support plate 218>
In the present embodiment, the support plate 218 is arranged on the outer end surface 2132 on the base side of the support cover body flange 2131.
The support plate 218 is manufactured using a material that is less likely to be damaged than the support cover body 2101. Specifically, the support plate 218 is preferably made of aluminum or other metal.
The support plate 218 has a ring shape, and the inner diameter is the same as the outer diameter of the support cover body cylinder portion 2121. Therefore, even if the support main body 2100 is cracked, the support main body 2100 can be prevented from falling.
Further, if the inner diameter of the support plate 218 is made smaller than the diameter of the circumscribed circle of the support main body flange 2130 of the support main body 2100, the support plate 218 can be used as the support main body even if the support cover body 2101 is not damaged. Since it is caught on the support main body flange 2130 of the 2100, it is possible to prevent the equipment from falling.
The support plate 218 is formed with three screw holes 2181 arranged at intervals of approximately 120 degrees. Screws 260 for attaching the support unit 20a to the support 210a are screwed into the screw holes 2181. The screw holes 2181 are formed according to the number of the support unit 20a and the screws 260, and four or more screw holes may be formed or may be arranged at different intervals (angles).

*** Explanation of the effect of the embodiment ***

<Insulation>
Since the second gasket 250a is manufactured by using an insulating material, even if the support main body 2100 and the connecting portion 230a are manufactured of a metal material, the electrical insulating properties of both can be maintained. That is, the support main body 2100 can support the connecting portion and the light source while maintaining electrical insulation with components other than the base.
Further, since the second gasket 250a forms a recess by the inner thick portion 2503, the thin portion 2504, and the outer thick portion 2505 and fits the inner end surface 2153 of the support main body 2100, the creepage between the support main body 2100 and the screw 260. The distance becomes longer and the electrical insulation is improved.

<Waterproof>
By strongly adhering the wide area of the second gasket 250a to the support 210a and the connecting portion 230a, waterproofness (watertightness / liquidtightness) can be improved.
Further, since the second gasket 250a forms a recess by the inner thick portion 2503, the thin portion 2504, and the outer thick portion 2505 and fits the inner end surface 2153 of the support main body 2100, it is waterproof (watertightness / liquidtightness). ) Can be improved.

<Impact resistance>
The second gasket 250a has an elastic force, and the impact resistance (vibration resistance) can be improved by increasing the contact area between the support 210a and the connecting portion 230a.

The contact surface of the second gasket 250a and the contact surface of the support 210a are formed into a concavo-convex shape that meshes with each other to increase the contact area (contact area), and the contact surface of the second gasket 250a and the contact surface of the connecting portion 230a. By increasing the contact area (contact area) as an uneven shape that meshes with each other, electrical insulation, waterproofness (watertightness / liquidtightness), and impact resistance (vibration resistance) can be further improved.
Specifically, an annular convex portion is provided on the inner end surface 2153 of the support main body flange portion 2130, an annular concave portion is provided on the thin portion 2504 of the second gasket 250a, and the convex portion of the inner end surface 2153 and the concave portion of the thin portion 2504. By engaging, electrical insulation, waterproofness (watertightness / liquidtightness), and impact resistance (vibration resistance) can be further improved.

Alternatively, by providing an annular convex portion on the surface of the second gasket 250a on the connecting portion 230a side and providing an annular concave portion on the end surface of the fastening portion 2311 on the support 210a side and engaging the second gasket 250a, electrical insulation and waterproofness ( Watertightness / liquidtightness) and impact resistance (vibration resistance) can be further improved.

<Stress dispersion and dropout prevention>
The support plate 218 disperses the local stress applied to the screw holes of the support cover body 2101 around the screw holes 2141 of the screws 260, and even if the support cover body 2101 is damaged, the support cover body 2101 Alternatively, it is possible to suppress the possibility that the instrument body will fall off.

Embodiment 8.
In the present embodiment, the differences from the first to seventh embodiments will be described.
In the present embodiment, a configuration that exerts the following effects will be mainly described.
1. 1. Reduction of the number of parts 2. Improvement of waterproof performance by integrating parts 3. Weight reduction 4. Improved heat dissipation

*** Explanation of configuration ***

<<< Lighting Equipment 1 >>>
The luminaire 1 of the eighth embodiment will be described with reference to FIGS. 58 to 64.
The illuminator 1 has a light source unit 10j and a support unit 20j that supports and fixes the light source unit 10j.

<< Light source unit 10j >>
The light source unit 10j has a main body 100j, a light emitting unit 120, a cover 130, and a first end lid 140j.

<Main body 100j>
As shown in FIG. 58, the main body portion 100j has an outer peripheral surface 110j on the outer peripheral side surface and an inner peripheral surface 103j on the inner peripheral side surface.
The main body 100j includes a mounting portion 102j in which the light emitting portion 120 is arranged on the outer peripheral surface 110j, and a heat dissipating portion 105j that dissipates the operating heat generated by the light emitting portion 120 on the inner peripheral surface 103j facing the mounting portion 102j. It is formed.
The mounting portion 102j of the outer peripheral surface 110j is the outer peripheral portion of the main body portion 100j, and the light emitting element 121 is arranged.

The main body portion 100j has a tubular portion 101j that serves as a heat transfer path or a heat transfer portion. The tubular portion 101j is a dodecagonal prism, and is a tubular body having a uniform diameter of the circumscribed circle in a cross section orthogonal to the central axis O.
The main body 100j has a tubular shape, and one end and the other end are open.
The heat dissipating portion 105j is composed of a plurality of heat radiating fins 108j.
The tubular portion 101j has an end portion 104 as a tubular end portion.

The end 104 has a screw hole 106.
A screw 170 for attaching the first end lid 140j is screwed into the screw hole 106 of one end 104.
A screw 260 for attaching the connecting lid 700 and the support 210j is screwed into the screw hole 106 of the other end 104.

An internal space 107 is formed inside the main body 100j. The internal space 107 functions as a heat exchange unit and serves as an air flow path. The internal space 107 refers to the entire space inside the tubular portion 101j.

A ventilation space 109j exists in the center of the internal space 107.
The ventilation space 109j is in the center of the internal space 107.
The ventilation space 109j is a tubular space in which the heat dissipation portion 105j is not formed, and refers to a space in which there are no obstacles to ventilation in the direction of the central axis O.
The ventilation space 109j is a part of the internal space 107, and there is no boundary or partition wall that separates the ventilation space 109j from other spaces.
The cover 130 is arranged outside the main body 100j so as to cover the light emitting element.

<First end lid 140j>
The first end lid 140j is an end lid attached to the main body 100j so as to cover one end 104 of the main body 100j (cylinder 101j) and one end 134 of the cover 130.
The first end lid 140j is a lid that covers one end of the main body 100j (cylinder 101j) and the cover 130, and functions as a first cap.

As shown in FIGS. 61 and 62, the first end lid 140j has an annular portion 141 as a main portion. The annulus 141 has a donut shape. The annulus 141 has an annular eaves 149 on the outer edge that covers the end 134 of the cover 130.
The first end lid 140j has an annular groove 142 for arranging the first gasket 160j. The groove portion 142 functions as a first gasket arrangement portion.

The first end lid 140j does not have the bridge portion 144 shown in the above-described embodiment.
Since the first end lid 140j does not have the bridge portion 144, it forms a circular vent 146j.
The vent 146j is an opening that communicates the internal space 107 of the main body 100j with the external space.
The first end lid 140j has four screw bases 145 arranged at 90 degree intervals. The screw base 145 is a thick portion that rises in a direction parallel to the central axis O from the surface of the annular portion 141. A part of the screw base 145 protrudes inward in the radial direction.
The screw base 145 has a screw hole 143 in the center. A screw 170 for attaching the first end lid 140j is inserted into the screw hole 143.

<< Support unit 20j >>
The support unit 20j is provided with a power receiving end 200 that receives lighting power for lighting the light emitting element 121 from the outside.
The support unit 20j is formed with a wiring path for arranging a wiring member 30 for transmitting lighting power from the power receiving end 200 to the substrate 122 on which the light emitting element 121 is mounted.
As shown in FIGS. 61 and 62, the support unit 20j includes a support plate 218j, a tubular support 210j, a second gasket 250j, a connecting lid 700, a first gasket 160j, and a screw 260 for integrating these. Have.
The support plate 218j, the support 210j, the second gasket 250j, the connecting lid 700, the first gasket 160j, and the main body 100j are integrated by the screw 260 to form a strong structure.

<Support 210j>
One end of the support 210j is attached to the tubular portion 101j, and the other end is attached to the base housing 201.
As shown in FIGS. 61 and 62, the support body 210j has a support body 2100j arranged inside in a state of being fitted to the base housing 201 and a support cover body arranged outside so as to cover the support body 2100j. It is composed of 2101j.
The support plate 218j and the support cover body 2101j are attached to the tubular portion 101j by screws 260 with the support main body 2100j, the second gasket 250j, the connecting lid 700, and the first gasket 160j in between.

<Support body 2100j>
As shown in FIGS. 61 and 62, one end of the support main body 2100j is fixed to the connecting lid 700, and the other end is attached to the base housing 201.
The support main body 2100j has a cylindrical support main body tubular portion 2120j, and the support main body tubular portion 2120j has a cylindrical cylindrical portion 2150j and a screw portion 2110j into which the base housing 201 is fitted. ing.
The outer diameter of the cylindrical portion 2150j is larger than the outer diameter of the screwed portion 2110j, and the cylindrical portion 2150j and the screwed portion 2110j are continuous via the stepped portion 2151j.
The first end portion 2160j of the support main body tubular portion 2120j is a mouthpiece side end portion.
The second end portion 2170j of the support main body tubular portion 2120j is the end portion on the connecting lid 700 side, and has the support main body flange portion 2130j.
The collar portion 2130j of the support main body has an annular shape, and connects the connecting lid 700 while structurally supporting the connecting lid 700.

A second gasket 250j is arranged between the support 210j and the connecting lid 700.
The end face of the support main body flange portion 2130j on the connecting lid 700 side functions as a second gasket arranging portion for arranging the second gasket 250j.
In the support main body flange portion 2130j, separation recesses 2140j are formed at four locations on the peripheral edge portion at intervals of approximately 90 degrees so that the support main body 2100j and the screw 260 do not come into direct contact with each other. The separating recess 2140j is a semicircular recess.

<Support cover body 2101j>
As shown in FIGS. 61 and 62, the support cover body 2101j is arranged outside the support main body 2100j.

The support cover body 2101j is attached to the connecting lid 700 using four screws 260 in a state of covering the second end 2170j side, which is the connecting lid 700 side end of the support main body 2100j.
The support cover body 2101j has a tubular support cover body tubular portion 2121j that covers the cylindrical portion 2150j of the support main body tubular portion 2120j.

The first end 2161j of the support cover body cylinder 2121j is the end on the base side, and the first end 2161j is an eave that is bent 90 degrees inward from the tubular body of the support cover cylinder 2121j. An annular portion 2162j having a shape is formed.
The eaves-shaped annular portion 2162j of the first end portion 2161j of the support cover body tubular portion 2121j extends over the entire circumference in the gap provided between the base housing 201 and the stepped portion 2151j of the support main body tubular portion 2120j. It is fitted.

The second end portion 2171j of the support cover body cylinder portion 2121j is the end portion on the connecting lid 700 side, and has the support cover body flange portion 2131j. The collar portion 2131j of the support cover has an annular shape, and connects the connecting lid 700 while structurally supporting the connecting lid 700.

An inner end surface 2153j and an outer end surface 2152j are formed on the end surface of the support cover body flange portion 2131j on the connecting lid 700 side of the second end portion 2171j of the support cover body cylinder portion 2121j. The inner end surface 2153j and the outer end surface 2152j are annular surfaces. The inner end surface 2153j is inside the outer end surface 2152j and is one step higher than the outer end surface 2152j.

Screw bosses 2142j having screw holes 2141j are formed at four positions on the peripheral edge of the support cover body flange portion 2131j at intervals of approximately 90 degrees. The screw boss 2142j and the screw hole 2141j are formed on the inner end surface 2153j. The screw boss 2142j projects in a semicircular shape toward the center. The shape of the screw boss 2142j corresponds to the shape of the separation recess 2140j, and the screw boss 2142j is arranged in the separation recess 2140j.

The screw hole 2141j penetrates the screw boss 2142j, and a screw 260 for attaching the connecting lid 700 is inserted into the screw hole 2141j.
The end face of the support cover body flange portion 2131j on the connecting lid 700 side functions as a second gasket arranging portion for arranging the second gasket 250j together with the end face of the support main body flange portion 2130j on the connecting lid 700 side. The second gasket 250j comes into surface contact with a wide surface formed by the end surface of the support main body flange portion 2130j on the connecting lid 700 side and the end surface of the support cover body flange portion 2131j on the connecting lid 700 side.
In a state where the support cover body 2101j covers the support body 2100j, the support cover body collar portion 2131j is arranged outside the support body collar portion 2130j.

<Connecting lid 700>
As shown in FIG. 59, the connecting lid 700 connects and fixes the light source unit 10j and the support 210j to both ends.
The connecting lid 700 functions as a heat dissipation path for transferring the heat generated from the light emitting element 121 to the outside of the illuminator 1.

As shown in FIGS. 63 and 64, the connecting lid 700 has a fastening portion 703, a second end lid 150j, and a leg portion 705.
The fastening portion 703 is fastened to the support 210j.
The second end lid 150j is attached to the main body 100j.
The leg portion 705 is located between the fastening portion 703 and the second end lid 150j, and integrally connects the fastening portion 703 and the second end lid 150j.
The first end portion 701 is an end portion of the fastening portion 703 on the power receiving end 200 side, and is a portion connecting the support 210j.
The second end portion 702 is an end portion of the second end portion lid 150j on the main body portion 100 side, and is a portion connecting the main body portion 100j.

<Fastening part 703>
As shown in FIGS. 63 and 64, the fastening portion 703 has a peripheral wall portion 7030 and a bottom wall portion 7031 (fastening surface portion 7032).
The peripheral wall portion 7030 is an annular wall.
A second gasket 250j is fitted on the inner circumference of the peripheral wall portion 7030.
The bottom wall portion 7031 is a circular flat surface surrounded by the peripheral wall portion 7030.
The bottom wall portion 7031 is a portion serving as a fastening surface portion 7032 in which the second gasket 250j and the wiring hole 2501j are in surface contact with each other.

<Second end lid 150j>
As shown in FIGS. 61 and 62, the second end lid 150j is attached to the main body 100j so as to cover the other end 104 of the main body 100j (cylinder 101j) and the other end 134 of the cover 130. There is.
The second end lid 150j is a lid that covers the other end of the main body 100j (cylinder 101j) and the cover 130, and functions as a second cap.
The second end lid 150j does not have the bridge portion 144 shown in the above-described embodiment.
Since the second end lid 150j does not have the bridge portion 144, it forms a circular vent 156j.

As shown in FIGS. 63 and 64, the second end lid 150j has an annulus portion 704 as a main portion.
The annulus 704 has a donut shape.
The ring portion 704 has a peripheral wall portion 7040 that covers the end portion 134 of the cover 130 on the outer edge.
The peripheral wall portion 7040 is an annular wall erected on the main body portion 100j side from the outer edge of the annular portion 704.
The first gasket 160j is fitted into the inner circumference of the peripheral wall portion 7040.
The second end lid 150j has a partition wall portion 7041 formed on the ring portion 704.
The partition wall portion 7041 is two arc-shaped walls erected on the main body portion 100 side inside the peripheral wall portion 7040.
The partition wall portion 7041 is an annular convex wall that partitions the groove portion 7042 and the annular arrangement portion 7046.

The second end lid 150j has an annular groove portion 7042 for arranging the first gasket 160j and an annular arrangement portion 7046. The groove portion 7042 and the annular arrangement portion 7046 function as a first gasket arrangement portion.
The groove portion 7042 is formed in an arc shape by the peripheral wall portion 7040 and the partition wall portion 7041.
The groove portion 7042 has a concave cross section in the radial direction, and has a groove bottom portion 7043, a groove outer wall portion 7044, and a groove inner wall portion 7045.
The groove bottom portion 7043 is the bottom surface of the groove portion 7042.
The groove outer wall portion 7044 is an outer peripheral surface of the groove portion 7042, and is an inner peripheral surface of the peripheral wall portion 7040.
The groove inner wall portion 7045 is an inner peripheral surface of the groove portion 7042, and is an outer peripheral surface of the partition wall portion 7041.
The groove outer wall portion 7044 and the groove inner wall portion 7045 are inner side surfaces of the groove and are opposite strip-shaped surfaces.

The annular arrangement portion 7046 is formed on the inner peripheral side of the partition wall portion 7041.
The annular arrangement portion 7046 has an arrangement elevation portion 7047 and an arrangement bottom portion 7048.
The arrangement elevation portion 7047 and the arrangement bottom portion 7048 are orthogonal to each other.
The arrangement elevation portion 7047 is an inner wall of the partition wall portion 7041 and is a strip-shaped annular surface.
The arrangement bottom surface portion 7048 is inside the partition wall portion 7041 and is a ring-shaped flat surface of the ring portion 704.

<Leg 705>
As shown in FIGS. 63 and 64, the leg portion 705 integrally connects a plurality of locations on the outer edge side of the second end lid 150j and the fastening portion 703 in the radial direction.
The leg portion 705 has four legs that are evenly spaced at 90 degree intervals.
The leg portion 705 has four legs including two first leg portions 7050 arranged at 180 degree intervals and two second leg portions 7051 arranged at 180 degree intervals.
Four vents 246 are formed between the legs 705.
The vent 246 is continuous with the central vent 156j of the second end lid 150j and is formed between the legs 705.
The vent 156j and the vent 246 are ventilation spaces connecting the internal space 107j to the external space.

<1st leg 7050>
The first leg portion 7050 is formed in a portion of the ring portion 704 where the partition wall portion 7041 is not formed.
The inside of the first leg portion 7050 is hollow and is formed in a tubular shape.
As shown in FIGS. 63 and 64, the first leg portion 7050 has an inclined portion 7052, a side portion 7053, a covering portion 7054, an outer wall 7055, and a tapered portion 7056.
The covering portion 7054 is a top plate protruding inward in the radial direction from the arrangement bottom surface portion 7048 in the portion between the two partition wall portions 7041.
The inclined portion 7052 is a rectangular flat surface inclined from the inner peripheral end portion of the covering portion 7054 toward the fastening surface portion 7032 at an inclination angle of approximately 45 degrees.
The side portion 7053 is two parallel side plates on both sides of the inclined portion 7052.
The side portion 7053 is a trapezoidal or tail wing-shaped wall formed perpendicular to the fastening surface portion 7032 from the end faces of both sides of the inclined portion 7052 so as to cover both sides of the inclined portion 7052.
The outer wall 7055 has the same width as the inclined portion 7052, and is an outer peripheral wall having the same radius as the fastening portion 703.
The tapered portion 7056 is formed at a connecting portion between the outer wall 7055 and the annulus portion 704.
The inclination angle of the tapered portion 7056 is the same as the inclination angle of the inclined portion 7052, which is 45 degrees.
The tapered portion 7056 has a function of a cover that covers the through hole 1609j at an angle of 45 degrees.

A rib 706 is formed in the hollow portion inside the first leg portion 7050 in parallel with the central axis O.
The rib 706 is formed along the inner peripheral wall of the outer wall 7055.
A screw hole 707 through which the screw 260 penetrates is formed in the center of the cover portion 7054 and the rib 706.

<Second leg 7051>
The second leg portion 7051 is a prismatic column formed parallel to the central axis O.
A screw hole 707 through which the screw 260 penetrates is formed in the center of the second leg portion 7051.

<Insert 708>
As shown in FIGS. 65 and 66, the connecting lid 700 has an insertion portion 708 in the first leg portion 7050.
The insertion portion 708 is a hollow portion formed in the first leg portion 7050.
The hollow portion formed in the first leg portion 7050 is formed on the following inner surface.
Inclined inner surface of inclined portion 7052 Parallel inner surface of side portion 7053 Lower inner surface of covering portion 7054 Inner peripheral surface of outer wall 7055 Inner peripheral surface of tapered portion 7056

As shown in FIGS. 65 and 66, the radial cross section of the hollow portion formed in the first leg portion 7050 has a trapezoidal shape in which the internal angle of one leg is 90 degrees.
The portion of the insertion portion 708 that functions as the portion through which the wiring member 30 is inserted is a portion having the shape of a parallelepiped formed in the hollow portion of the first leg portion 7050, as shown in FIGS. 65 and 66. Is.
The radial cross section of the parallelepiped is a parallelogram with an internal angle of 45 degrees.

The insertion portion 708 is formed along the direction in which the leg portion 705 connects the second end portion lid 150j and the fastening portion 703.
The insertion portion 708 forms a penetration space that penetrates the connecting lid 700 in a direction parallel to the central axis O.
In a state where the connecting lid 700 is attached to the main body 100j, the penetrating space is connected to the lighting space 137.
The penetration space is a wiring space through which the wiring member 30 is passed or a ventilation space through which air is passed.
The insertion portion 708 has a first insertion port 709 and a second insertion port 710.
The insertion portion 708 is a space existing between the first insertion port 709 and the second insertion port 710.

<1st outlet 709>
As shown in FIGS. 65 and 66, the first insertion port 709 is an opening on the side of the fastening portion 703 of the insertion portion 708.
The outer half of the first insertion port 709 is covered with the inner thickness portion 2503j of the second gasket 250j in a state where the second gasket 250j is attached.
The second gasket 250j covers the outer half in the radial direction of the opening portion of the hollow portion formed in the first leg portion 7050.
The inner peripheral half of the first insertion port 709 functions as a portion through which the wiring member 30 is inserted.
The opening portion of the insertion portion 708 on the side of the fastening portion 703 is only the first insertion port 709.

<Second outlet 710>
The second insertion port 710 is four through holes provided in the covering portion 7054 so as to communicate with the first insertion port 709.
The outer outer wall of the second insertion port 710 in the radial direction is formed by an inclined surface of the tapered portion 7056, and is inclined at an inclination angle of 45 degrees.
The second insertion port 710 is formed at a position having the same radius as the outer wall 7055 from the central axis O.
Since the tapered portion 7056 is inclined outward, the second insertion port 710 can communicate with the first insertion port 709.
The two second insertion holes 710 are formed between the two partition wall portions 7041, respectively.
Two second insertion ports 710 are provided in the vicinity of the screw hole 707.
The side of the ring portion 704 of the insertion portion 708 is covered with the covering portion 7054 except for the second insertion port 710.

<Through hole 711>
The first leg portion 7050 has a through hole 711 penetrating from the external space to the insertion portion 708.
The through hole 711 is a cylindrical hole formed in the center of the inclined portion 7052 of the first leg portion 7050 of the two first leg portions 7050.
The through hole 711 penetrates the inclined portion 7052 from the external space toward the insertion portion 708.
The through hole 711 connects the external space and the through space.
The through hole 711 is formed in a direction orthogonal to the inclined portion 7052.
The through hole 711 is formed in a direction different from the direction in which the through space of the insertion portion 708 is formed (the direction parallel to the central axis O).
The through hole 711 is formed in a direction orthogonal to the direction in which the first insertion port 709 is formed.
A ventilation filter 800 is arranged in the through hole 711 of the inclined portion 7052.
The ventilation filter 800 is a lid that covers the through hole 711, is a porous membrane or other filter, and is a filter that has both breathability and liquidtightness.

<Connecting part 790>
As shown in FIG. 58, the connecting portion 790 has a connecting lid 700 attached to the main body portion 100j and a support 210j to which the base power receiving end 200 is attached.
The connecting portion 790 is a main component of the support unit 20j.
The connecting lid 700 and the support 210j are attached to the main body 100j using a common fixture. A specific example of a common fixture is a screw 260.
The connecting portion 790 is attached to the main body 100j so that the second end 702 of the connecting lid 700 at the end on the side of the main body 100j covers the main body 100j and the other end of the cover.
The base power receiving end 200 is attached to the screwed portion 2110j of the support main body 2100j at the end opposite to the main body 100j of the connecting portion 790.
The connecting portion 790 is attached to the main body portion 100j so that the second end portion 702 of the connecting lid 700 at the end portion on the side of the main body portion 100j closes the lighting space 137.

<Second gasket 250j>
As shown in FIGS. 61 and 62, the second gasket 250j has an annular shape and a flat plate shape, has an outer shape corresponding to the support 210j and the connecting lid 700, and is fitted to the support 210j and the connecting lid 700. It has a rough ring shape.

The second gasket 250j is formed with a wiring hole 2501j that is penetrated in a substantially central portion for inserting the wiring member 30.
The wiring hole 2501j is a circular opening formed in the center of the second gasket 250j.
The diameter of the wiring hole 2501j is the same as the inner diameter of the cylindrical portion 2150j.

The second gasket 250j is formed with two inner thickness portions 2503j in the 180-degree direction corresponding to the first insertion port 709.
A thin portion 2504j thinner than the inner thick portion 2503 is formed around the inner thick portion 2503j.
The inner thickness portion 2503j is fitted into a recess formed in the inclined portion 7052.
The first insertion port 709 is formed between the inner peripheral wall of the inner thickness portion 2503j and the inclined portion 7052.

The shape of the surface of the second gasket 250j on the support body 210j side corresponds to the end surface of the support main body flange portion 2130j on the connecting lid 700 side, and corresponds to the end surface of the support cover body flange portion 2131j on the connecting lid 700 side. The shape.
The entire surface of the end surface of the support main body flange 2130j on the connecting lid 700 side is covered with the surface of the second gasket 250j on the support 210j side.

The shape of the surface of the second gasket 250j on the connecting lid 700 side corresponds to the end surface of the fastening portion 703 on the support 210j side. The entire surface of the end face of the second gasket 250j on the connecting lid 700 side is covered with the end face of the connecting lid 700 on the support 210j side.

The outer peripheral shape formed on the edge of the second gasket 250j is the same as the shape of the inner circumference of the fastening portion 703, and the entire outer circumference of the second gasket 250j is covered by the fastening portion 703.

In a state where the second gasket 250j is fitted with the support 210j, the second gasket 250j comes into surface contact with the end surface of the support cover body 2101j on the connecting lid 700 side and the end surface of the support body 2100j on the connecting lid 700 side.
Further, in a state where the second gasket 250j is fitted with the connecting lid 700, the outer edge and the outer peripheral wall of the second gasket 250j come into contact with the end surface of the fastening portion 703.

The second gasket 250j is formed with four screw holes 2502j penetrating the second gasket 250j at intervals of approximately 90 degrees.
The two screw holes 2502j are formed in the center of the inner thickness portion 2503.
The two screw holes 2502j are formed in the thin portion 2504j.

<First gasket 160j>
As shown in FIGS. 61 and 62, there are two first gaskets 160j because they are attached to one end and the other end of the main body 100j and the cover 130.
The shapes of the two first gaskets 160j are the same.
Therefore, one end and the other end of the main body 100j and the cover 130 have the same shape.
Further, the shapes of the first end lid 140j and the second end lid 150j on the main body 100j side are the same.
The first gasket 160j is in close contact with the end 134 of the cover 130 all around.

In the first gasket 160j, the portion of the cover gasket 161j and the portion of the tubular gasket 162j are integrated by a connecting portion 1608j.
The cover gasket 161j has an annular groove.
The tubular gasket 162j has a regular dodecagonal ring wall.
An arcuate groove 163 is formed on the back side of the connecting portion 1608j.
Two arc-shaped grooves 163 are provided corresponding to the partition wall portion 7041.
The arcuate groove 163 determines the rotational angle position between the first end lid 140j and the first gasket 160j about the central axis O by fitting the partition wall portion 7041.

As shown in FIG. 61, the first gasket 160j has four convex portions 1607.
The two convex portions 1607 are formed between the arcuate grooves 163 of the annulus portion 704, respectively.
The four convex portions 1607 are formed at positions corresponding to the four second insertion ports 710.
The outer wall on the outer side of the convex portion 1607 in the radial direction is inclined at an inclination angle of 45 degrees.
As shown in FIGS. 65 and 66, the convex portion 1607 is arranged at the corner where the tapered portion 7056 and the covering portion 7054 intersect.

The connecting portion 1608j is provided with four through holes 1609j.
The through hole 1609j penetrates the connecting portion 1608j and the convex portion 1607.
The two through holes 1609j are formed between the two arcuate grooves 163, respectively.
The four through holes 1609j are formed at positions corresponding to the four second insertion ports 710.
By fitting the partition wall portion 7041 into the arcuate groove 163, as shown in FIGS. 65 and 66, the convex portion 1607 is aligned with the second insertion port 710 and fitted, and the through hole 1609j and the second insertion port 710 are fitted. Is connected in a direction parallel to the central axis O.

<< Lighting space 137 and internal space 107j >>
A lighting space 137 in which the light emitting element 121 is arranged is formed between the main body 100j and the cover 130.
The main body 100j forms an internal space 107j on the opposite side of the lighting space 137.
The internal space 107j is formed on the inner peripheral side of the main body 100j.
The first end lid 140j is attached to the main body 100j so as to close the lighting space 137.
The first end lid 140j is attached to the main body 100j so as to open the internal space 107j.
The connecting portion 790 is attached to the main body portion 100j so as to block the lighting space 137.
The connecting portion 790 is attached to the main body portion 100j so as to open the internal space 107.
The lighting space 137 is closed at one end and the other end.
The internal space 107j is connected to the external space at one end and the other end.
The internal space 107j is connected to the external space at one end of the main body 100j via the vent 146j of the first end lid 140j.
The internal space 107j is connected to the external space at the other end of the main body 100j via the vents 156j of the second end lid 150j and the four vents 246 of the legs 705.

<< Wiring route >>
The wiring path will be described with reference to FIG. 65.
A wiring path is formed inside the support unit 20j so that the wiring member 30 is not exposed to the outside of the illuminator 1.

The wiring path from the lighting space 137 means the following path.
1. 1. Through hole 1609j of the first gasket 160j,
2. Second insertion port 710, insertion portion 708 and first insertion port 709 of the connecting lid 700,
3. 3. Wiring hole 2501j of the second gasket 250j,
4. The central opening of the support body 2100j of the support 210j.

The insertion portion 708 serving as a wiring path is an insertion portion 708 of the first leg portion 7050 in which the through hole 711 is not formed.
The light emitting element 121 can receive the lighting power by the wiring member 30 arranged between the base power receiving end 200 and the lighting space 137 via the insertion portion 708.

<< Ventilation route >>
The ventilation path will be described with reference to FIG.
The lighting space 137 is closed at one end and the other end, but a ventilation path is formed inside the support unit 20j so as to connect the lighting space 137 and the external space.
The insertion portion 708 serving as a ventilation path is an insertion portion 708 of the first leg portion 7050 in which the through hole 711 is formed.

The ventilation path from the lighting space 137 means the following path.
1. 1. Through hole 1609j of the first gasket 160j,
2. Second insertion port 710 and insertion portion 708 of the connecting lid 700
3. 3. Through hole 711 of the inclined portion 7052,
4. Ventilation filter 800 attached to through hole 711,
5. Ventilation 246.

<< Features of the connecting lid 700 >>
The features of the connecting lid 700 are as follows.

<Feature 1>
The connecting lid 700 is one component that fixes the light source unit 10j and the support unit 20j.

<Feature 2>
The light source unit 10j has a lighting space 137.
The support unit 20j has an opening that serves as a wiring path.
The connecting lid 700 has a lid portion that covers the lighting space 137 of the light source unit 10j.
The connecting lid 700 has a lid portion that covers the opening of the support 210j.
In the connecting lid 700, the lighting space 137 is a closed space, and the wiring path of the support 210j is a closed space.

<Feature 3>
The connecting lid 700 has a leg portion 705 that connects the two lid portions.
The leg portion 705 has an insertion portion 708 that connects the lighting space 137 of the light source unit 10j and the opening of the support 210j.
The insertion portion 708 passes the wiring member 30 through the lighting space 137.
The leg portion 705 has a ventilation filter 800 that connects the lighting space 137 to the external space.

<Feature 4>
The connecting lid 700 has a vent 246 formed between the central vent 156j and the leg 705 of the lid covering the lighting space 137.
The light source unit 10j has an internal space 107j in the center of the lighting space 137.
The vent 156j and the vent 246 of the connecting lid 700 connect the internal space 107j to the external space.
The connecting lid 700 does not cover the internal space 107j of the light source unit 10j.

***Production method***
The manufacturing method of the luminaire 1 is as follows.
It is assumed that each part is prepared in advance.

The light emitting unit 120 is attached to the main body 100j.
The wiring member 30 is soldered to the substrate 122 of the light emitting unit 120.

<Mounting process of the first end lid 140j>
The first gasket 160j is arranged on the first end lid 140j.
The first end lid 140j is screwed to one end of the main body 100j.
The main body portion 100j is inserted into the cover 130, and one end of the cover 130 is brought into contact with the first gasket 160j.
At this point, the light source unit 10j is completed.

<Mounting process of support unit 20j>
The wiring member 30 is passed through the through hole 1609j of another first gasket 160j.
At that time, one wiring member 30 is passed through one through hole 1609j.
The first gasket 160j is applied to the other end of the main body 100j and the cover 130.
The ventilation filter 800 is attached to the through hole 711 of the connecting lid 700.
The wiring member 30 is passed through the insertion portion 708 of the connecting lid 700. The wiring member 30 passes through the insertion portion 708 while being bent inward in the radial direction by the tapered portion 7056.
The partition wall portion 7041 of the connecting lid 700 is fitted into the arcuate groove 163 of the first gasket 160j, the convex portion 1607 is further inserted into the second insertion port 710 of the connecting lid 700, and the connecting lid 700 is fitted into the first gasket 160j. ..
The wiring member 30 is bent inward in the radial direction within a range of 45 degrees by the tapered portion 7056 and arranged.

The wiring member 30 is passed through the wiring hole 2501j, and the second gasket 250j is fitted into the fastening portion 703 of the connecting lid 700.
The support main body 2100j of the support body 210j is applied to the second gasket 250j, and the support main body 2100j is covered with the support cover body 2101j.
Further, the support plate 218j is put on the support cover body 2101j.
The first gasket 160j, the connecting lid 700, the second gasket 250j, the support main body 2100j, the support cover body 2101j, and the support plate 218j are fixed to the tubular portion 101j with screws 260.

The order of the attachment step of the first end lid 140j and the attachment step of the support unit 20j may be reversed.

The wiring member 30 is soldered to the power receiving end 200, and the power receiving end 200 is screwed into the support 210j to fix it.
At this point, the luminaire 1 is completed.

*** Explanation of the effect of the embodiment ***

According to this embodiment, the second end lid 150 of the light source unit 10 and the connecting portion 230 of the support unit 20 described in the above-described embodiment are integrally molded to form the connecting lid 700, so that the number of parts is increased. Can be reduced, and mass productivity and assemblability are improved.
Further, since the connecting lid 700 is integrally molded, the waterproof performance is improved.

Further, since the bridge portion 144 is removed from the first end lid 140 of the light source unit 10 and the bridge portion 154 is removed from the second end lid 150 of the light source unit 10, heat dissipation is improved. Since there is no bridge 144, the weight of the luminaire 1 can be reduced.

Further, since the second end lid 150j of the connecting lid 700 and the fastening portion 703 are connected by the leg portion 705, the air permeability from the second end lid 150 is not hindered.
Since the inclined portion 7052 of the first leg portion 7050 is inclined, the air permeability from the second end lid 150 is not hindered.

Further, since the first leg portion 7050 is formed into a tubular shape to form the insertion portion 708 having the through hole 711, it is possible to secure the ventilation path between the lighting space 137 and the external space.
Further, the insertion portion 708 of the first leg portion 7050 can be used as a wiring path of the wiring member 30.
Since the insertion portion 708 is formed in a direction parallel to the central axis O, the wiring member 30 can easily pass through the insertion portion 708.
Since the insertion portion 708 of the first leg portion 7050 communicates with the lighting space 137, the first leg portion 7050 can also serve as a wiring path or a ventilation path, and the first leg portion 7050 can be either a ventilation path or a wiring path. Can also be used for.

Further, since the first leg portion 7050 is provided with a through hole 711 connecting the external space to the insertion portion 708, it is possible to secure a ventilation path between the lighting space 137 and the external space.

Since the direction in which the insertion portion 708 is formed and the direction in which the through hole 711 is formed are different, even if water, dust, or dust invades through the through hole 711, water, dust, or dust intrudes into the through hole 1609j. Can be prevented.
Since the through hole 1609j is covered by the tapered portion 7056 at an angle of 45 degrees, it is possible to prevent water, dust, and dust from entering the through hole 1609j.

Further, since the through hole 711 is covered with the ventilation filter 800, liquidtightness (waterproofness) can be ensured while ensuring breathability.
Since the ventilation filter 800 is attached to the inclined portion 7052 and is not exposed to the outside, it does not easily come off and does not spoil the appearance.

*** Other configurations ***
<Modification example of connecting lid 700>
The connecting lid 700 may have a plurality of legs other than the four legs as the leg portion 705 instead of the four legs.
The connecting lid 700 may have only two first leg portions 7050.
The connecting lid 700 may have one first leg 7050 instead of two first legs 7050.
In the case of one first leg 7050, a wiring path and a ventilation path may be formed in one first leg 7050.
The connecting lid 700 may have only one first leg 7050 and one second leg 7051.

The first leg portion 7050 of the connecting lid 700 may have a parallel portion parallel to the central axis O instead of the inclined portion 7052 instead of the inclined portion 7052.
Instead of passing the wiring member 30 of one illuminator through one through hole 1609j, the number of through holes 1609j may be reduced and a plurality of wiring members 30 may be passed through one through hole 1609j.
The insertion portion 708 may have a through space, and the shapes of the first leg portion 7050 and the insertion portion 708 do not matter.
The shape of the first leg portion 7050 may be the shape of a polygonal pillar or a cylinder, and the shape of the insertion portion 708 may be a penetration space of a polygonal pillar or a cylinder penetrating the center of the first leg portion 7050.

<Example of shape deformation>
The shapes of the two first gaskets 160j may be different.
The shapes of the first end lid 140j and the second end lid 150j may be different.
When the cover 130 has a truncated cone shape, the outer diameters of the two first gaskets 160j are different, and the outer diameters of the first end lid 140j and the second end lid 150j are different.
When the main body 100j has a truncated cone shape, the inner diameters of the two first gaskets 160j are different, and the inner diameters of the first end lid 140j and the second end lid 150j are different.
When the cover 130 is a polygonal column, the first end lid 140j, the second end lid 150j, and the two first gaskets 160j may be polygonal.
The shapes of the first end lid 140j, the second end lid 150j, and the two first gaskets 160j may correspond to the shapes of the ends of the cover 130 and the main body 100j.

<Modification example of support unit 20j>
When it is not necessary to make the luminaire 1 airtight and liquidtight, the first gasket 160j and the second gasket 250j of the support unit 20j may be omitted. There may be one of the first gasket 160j and the second gasket 250j.
If there is no need to worry about the luminaire 1 falling, the support plate 218j of the support unit 20j may be omitted.

<Modification example of the method of wiring the wiring member 30>
There are the following methods as a method of wiring the wiring member 30.
1. 1. A method in which the wiring member 30 is passed after the first gasket 160j and the connecting lid 700 are aligned.
2. A method in which the wiring member 30 is passed after the first gasket 160j, the connecting lid 700, and the second gasket 250j are combined.
3. 3. A method in which the wiring member 30 is passed after the first gasket 160j, the connecting lid 700, the second gasket 250j, and the support main body 2100j are combined.
4. A method in which the wiring member 30 is passed after the first gasket 160j, the connecting lid 700, the second gasket 250j, the support main body 2100j, and the support cover body 2101j are combined.
5. A method in which the wiring member 30 is passed after the first gasket 160j, the connecting lid 700, the second gasket 250j, the support main body 2100j, the support cover body 2101j, and the support plate 218j are aligned.
6. A method in which the first gasket 160j, the connecting lid 700, the second gasket 250j, the support main body 2100j, the support cover body 2101j, and the support plate 218j are put together, and then the screw 260 is passed through, and the wiring member 30 is passed through before screwing.

Further, there is also the following method as a method of passing the wiring member 30.
1. 1. A method in which the wiring member 30 is passed after the support main body 2100j and the support cover body 2101j are aligned.
2. A method in which the wiring member 30 is passed after the support main body 2100j, the support cover body 2101j, and the support plate 218j are aligned.
3. 3. A method in which the support main body 2100j, the support cover body 2101j, and the support plate 218j are put together, and then the screw 260 is passed through, and the wiring member 30 is passed through before being screwed.

The method of passing the wiring member 30 may be another method.

1 Lighting equipment, 2 Lighting equipment, 10,10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, 10j Light source unit, 100, 100j Main body, 101, 101j Cylinder, 102, 102j Mounting part, 103,103j Inner peripheral surface, 104 end, 105,105j Heat dissipation part, 106 screw hole, 107,107j Internal space, 108,108j Heat dissipation fin, 109,109j Ventilation space, 110,110j Outer surface, 111 flange, 112 Vent hole, 113 slit, 120 light emitting part, 121 light emitting element, 122 substrate, 123 terminal, 130 cover, 131 translucent part, 132 outer peripheral surface, 133 inner peripheral surface, 134 end, 137 lighting space, 140, 140j 1st End lid, 140a, 140b, 140j 1st end lid, 141 annular part, 142 groove part, 1421,1421j partition wall, 1422 annular arrangement part, 143 screw holes, 144 bridge parts, 145 screw bases, 146,146j ventilation Mouth, 147 wide thick bridge, 148 wide narrow bridge, 149 annular eaves, 150, 150a, 150b, 150c, 150d, 150e, 150f, 150j 2nd end lid, 151 annular part, 151a annular part, 1511 Surface, 1512 placement bottom, 152 groove, 1521 partition wall, 1522 annular placement, 1523 groove bottom, 1524 groove outer wall, 1525 groove inner wall, 1526 outer wall groove, 1527, 1528 guide guide, 1529 top, 153 screw holes, 154 Bridge part, 155 through hole, 156,156j vent, 157 width thick bridge, 158 width narrow bridge, 159 annular eaves, 160 first gasket, 160a, 160b, 160c, 160j first gasket, 1601 inward convex ring part, 1602 Outer convex ring part, 1607 convex part, 1608, 1608j connection part, 1609, 1609j through hole, 161, 161a, 161b, 161c, 161d, 161j cover gasket, 1611 bottom, 1612 outer wall, 1613 inner wall, 1614 bottom, 1615 Outer leg, 1616 Inner leg, 1617 gap, 1617a gap, 1618 2nd groove, 1619 top, 162, 162j tubular gasket, 1621 mounting Part sealing part, 1622 end sealing part, 1623 ring lower surface, 1624 annular outer wall surface, 1625 annular inner wall surface, 1626 ring upper surface, 1627 extension part, 1628 inclined wall, 1629 annular eaves, 163 arc groove, 170 screws, 190 Adhesive, 20, 20j support unit, 200 power receiving end, 201 base housing, 202 eyelet, 210 support, 211 screwed part, 212 support cylinder part, 213 support flange part, 214 screw holes, 215 grooves, 216 first End, 217 2nd end, 230 connecting part, 231 connecting cylinder part, 232 connecting flange part, 233 ring part, 234 screw hole, 235 protrusion part, 236 insertion part, 237 groove part, 238 first end part, 239 2nd end, 240 heat dissipation plate, 241 wide bridge, 242 narrow bridge, 246 vent, 247 lid, 248 wiring hole, 249 protrusion space, 250 2nd gasket, 260 screw, 30 wiring member, 40th 3 Gasket, 50 Screws, 1000 Lighting Device, 1001 Strut, 1002 Introductory Line, 1003 Power Supply Arrangement, 1004 Lighting Device, 1005 Strut Inside Wire, 1010 Socket, 1011 Lamp Cover, 1012 Socket Arrangement, 1013 Suspended Bottom, 1014 Caps, 1020 Commercial AC power supply, 5000 ceiling, O center axis, 61 Fluorine coating film, 62 Translucent film, 63 Translucent textured film, 64 Translucent color film, 20a support unit, 210a, 210j support, 2100, 2100j Support body, 2101,210j Support cover body, 2110, 2110j Screwed part, 2120, 2120j Support body cylinder part, 2121,121j Support cover body cylinder part, 2130, 2130j Support body flange part, 211,2131j Support cover body flange 2132 Outer end surface, 2140, 2140j Separation recess, 2141,2141j Screw hole, 2142, 2142j Screw boss, 2150, 2150j Cylindrical part, 2151, 2151j Step part, 2152, 2152j Outer end surface, 2153, 2153j Inner end surface, 2160, 2160j 1st end, 2161,261j 1st end, 2162, 2162j, annular part, 2170, 2170j 2nd end, 2171,2171j 2nd end, 218,218j Support plate, 2181,2181j Screw hole, 230a connecting part, 2311 fastening part, 2331 ring part, 2341 screw hole, 2351 protruding part, 2361 insertion Part, 2371 groove part, 2401 heat dissipation plate, 2401 columnar part, 2411 wide bridge, 2421 narrow bridge, 2461 vent, 2471 peripheral wall, 2481 screw hole, 2491 protrusion space, 250a, 250j second gasket, 2501,251j wiring Hole, 2502,2502j Screw hole, 2503,2503j Inner thickness part, 2504,2504j Thin part, 2505 Outer thickness part, 2506 recess, 700 Connecting lid, 701 1st end, 702 2nd end, 703 Fastening, 7030 Peripheral wall part, 7031 bottom wall part, 7032 fastening surface part, 704 annular part, 7040 peripheral wall part, 7041 partition wall part, 7042 groove part, 7043 groove bottom part, 7044 groove outer wall part, 7045 groove inner wall part, 7046 annular arrangement part, 7047 arrangement Elevation part, 7048 placement bottom part, 705 leg part, 7050 first leg part, 7051 second leg part, 7052 inclined part, 7053 side part, 7054 covering part, 7055 outer wall, 7056 taper part, 706 rib, 707 screw hole , 708 insertion part, 709 first insertion port, 710 second insertion port, 711 through hole, 790 connection part, 800 ventilation filter.

Claims (17)

The main body where the light emitting element is arranged on the outer circumference,
A cover that is arranged outside the main body and forms a lighting space in which the light emitting element is arranged,
A first end lid attached to the main body so as to cover one end of the main body and one end of the cover,
The end on the side of the main body is attached to the main body so as to cover the other end of the main body and the other end of the cover, and the base is attached to the end opposite to the main body. Equipped with a connecting part
The connecting portion has a connecting lid attached to the main body portion and a support to which the base is attached.
The connecting lid
The second end lid attached to the main body and
A fastening portion to be fastened to the support and
With the legs that integrally connect the second end lid and the fastening portion
Lighting equipment that is one of the parts that has. The luminaire according to claim 1, wherein the first end lid is attached to the main body so as to block the lighting space. The luminaire according to claim 2, wherein the connecting portion is attached to the main body portion so as to block the lighting space. The luminaire according to any one of claims 1 to 3, wherein the main body has one end and the other end open. The luminaire according to any one of claims 1 to 4, wherein an internal space is formed on the inner peripheral side of the main body portion. The luminaire according to claim 5, wherein the internal space is connected to the external space at one end and the other end. The luminaire according to claim 5 or 6, wherein the first end lid is attached to the main body so as to open the internal space. The luminaire according to any one of claims 5 to 7, wherein the connecting portion is attached to the main body portion so as to open the internal space. Before Symbol wherein the coupling cover and the support, the illumination device according to any one of claims 1 to 8 attached to the main body portion by using a common fastener. The legs are lighting fixture according to claim 1 which is integrally connected a plurality of portions of the outer edge side in the radial direction between the fastening portion and the second end cap. An internal space is formed on the inner peripheral side of the main body.
The luminaire according to any one of claims 1 to 10, wherein the internal space is connected to the external space at the other end of the main body portion, and is connected to the external space via between the legs. The legs have a through portion formed through space extends through said coupling cover,
Through space of the insertion portion, the lighting device according to any one of the ventilation space and name Ru claims 1 to 11 through a wiring space or air through a wiring member. The luminaire according to claim 12 , wherein the penetrating space is connected to the lighting space in a state where the connecting lid is attached to the main body. The luminaire according to claim 12 or 13 , wherein the light emitting element receives lighting power supplied by a wiring member wired from the mouthpiece to the lighting space via the insertion portion. The luminaire according to any one of claims 12 to 14 , wherein the leg portion has a through hole penetrating from the external space to the insertion portion. The luminaire according to claim 15 , wherein a filter having both air permeability and liquidtightness is arranged in the through hole. A lighting device provided with the lighting equipment according to any one of claims 1 to 16.

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