JP2018147561A - Lighting device and manufacturing method for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent falling of a cover 110 in a lighting device.SOLUTION: A lighting device includes a light source part 100 and a heat radiation part 200 to which the light source part 100 is fixed. The light source part 100 has a cover 110. The heat radiation part 200 has a heat receiving body 260 to which the light source part 100 is fixed. The lighting device includes clips 950, each of which sandwiches the cover 110 and the heat receiving body 260. The cover 110 and each clip 950 have a hook mechanism for hooking the clip 950 on the cover 110 by using a dent 987 and a crest part 993.SELECTED DRAWING: Figure 47

Description

  The present invention relates to a lighting device and a method for manufacturing the lighting device, and more particularly, to an LED lighting fixture, particularly a high intensity discharge lamp (HID) type LED lamp used for high ceiling applications.

  The conventionally used umbrella-shaped HID alternative LED lamp shown in Patent Document 1 is limited to the shade shape of the appliance, and it is necessary to attach the base to a rod-shaped or cylindrical part at the expense of the heat sink. The shape was like this. In this case, since the amount (volume, surface area) of the heat radiating portion is reduced, the heat radiating performance is lowered.

  Also, there is a problem that the rod-like or cylindrical part to which the base is attached cannot obtain sufficient strength against the moment force when attaching the lamp to the socket of the fixture body (the circle where the light source is placed when the lamp is attached) In addition to increasing the moment force applied to the shaft by rotating around the plate-shaped part), when the lamp is attached to the fixture, the base may become loose when vibration is applied, or the air in the base There was a problem of obstructing the flow.

  In addition, the umbrella-shaped HID alternative LED lamp that has been used in the past requires a large mold because a die-cast molded product using a metal material such as aluminum is used for the heat dissipation part. It is difficult to obtain a sufficient surface area, and in the case of die casting, there has been a problem that the heat radiation pieces (fins) cannot be thinly formed, the weight of the whole lamp becomes heavy and the vibration resistance is lacking.

  Furthermore, a wiring connected to the light source unit is inserted into the cylindrical part, and has a fail-safe function against smoke or ignition generated due to an electrical failure. However, in the lighting device having such a structure, the cylindrical body supports the entire lighting device, and therefore, when stress concentrates on the joint with the heat receiving body and breaks down, the wiring is exposed. There are risks. In addition, since the cylindrical body has a function as a heat radiator, the temperature is likely to rise, and it is necessary to sufficiently consider the heat resistance temperature of the wiring. Further, the wiring outlet on the light source unit side has a sharp edge because the cylindrical body is made of metal, and there is a possibility that the coating may be broken due to contact with the wiring and short-circuited. In that case, it may cause a ground fault or electric shock.

  Patent Document 2 is an example of a fall prevention measure, but it is intended for lamps that are generally heavy (heavy), such as the umbrella-shaped HID alternative LED lamps that have been conventionally used, and are redundant. It has a configuration.

Japanese Patent Laying-Open No. 2015-035398 JP2013-084439A

The cover of the light source unit is often made of resin in consideration of transparency. Moreover, the heat radiation part is often made of aluminum in consideration of heat radiation. When fixing the cover, it is often screwed to the heat sink made of aluminum, so that the so-called “screw fool” that cuts or hurts the screw hole of the heat sink is likely to occur, the screw 115 loosens and the cover falls. there is a possibility.
Lighting devices used for high ceiling applications require measures to prevent parts from falling.

  The present invention provides an illuminating device in which the fall of the cover of the light source unit is suppressed.

A lighting device according to one embodiment of the present invention includes:
A light source unit;
A heat dissipating part to which the light source part is fixed,
The light source unit has a cover,
The heat dissipating part has a heat receiving body to which the light source part is fixed,
It has a clip that sandwiches the cover and the heat receiving body.

  Since the heat receiving body of the heat radiating unit and the cover of the light source unit are sandwiched by the clip, the cover of the light source unit can be prevented from dropping from the heat radiating unit.

FIG. 6 is a six-side view and a perspective view of the lighting device 1000. The perspective view of the illuminating device 1000. FIG. The exploded perspective view of the light source part 100. FIG. The disassembled perspective view of the light source part 100 and the thermal radiation part 200. FIG. The perspective view of the cover stop 130. FIG. The perspective view of the reflecting plate 120. FIG. The perspective view of the stabilizer 160. FIG. The perspective view of the thermal radiation piece 270 and the thermal radiation piece 275. FIG. The perspective view of the arm 580. FIG. The disassembled perspective view of the connection part 300. FIG. The perspective view of the holder 390. FIG. The perspective view which removed a part of thermal radiation part 200 from the illuminating device 1000. FIG. The schematic attachment figure of the illuminating device 1000. FIG. FIG. 3 is a cross-sectional view of a main part of the light source unit 100. The perspective view of the connection part 300. FIG. FIG. 16 is a cross-sectional view taken along the line AA of the connection portion 300 in FIG. 15; DD partial expanded perspective sectional drawing of the connection part 300 of FIG. CC sectional drawing of the thermal radiation part 200 of FIG. FIG. 6 is another configuration diagram of the light source unit 100 according to the second embodiment. Another configuration diagram of the arm 580 in the second embodiment. FIG. 9 is a configuration diagram of a lighting fixture 614 and a lighting device 1000 according to Embodiment 3. FIG. 10 is a perspective view of lighting apparatus 1000 according to Embodiment 3. FIG. 10 is a configuration diagram of a connection unit 300 according to Embodiment 3. FIG. 10 is a configuration diagram of a support body 310, a lid part 320, and a ring 340 in the third embodiment. EE sectional drawing of the nozzle | cap | die case 301 and the support body 310 in Embodiment 3. FIG. FF sectional drawing of the base housing | casing 301 and the support body 310 in Embodiment 3. FIG. FIG. 6 is a diagram illustrating a caulking configuration of a connection unit 300 according to the third embodiment. FIG. 10 is a configuration diagram of a support body 310 and a lid part 320 in a third embodiment. FIG. 6 is a configuration diagram of a fall prevention mechanism in a third embodiment. The block diagram of the arm 580 and the product label 780 in Embodiment 3. FIG. FIG. 10 is a perspective view of lighting apparatus 1000 according to Embodiment 4. FIG. 10 is a side view of lighting apparatus 1000 according to Embodiment 4. FIG. 10 is a bottom view of lighting device 1000 according to Embodiment 4. FIG. 10 is a plan view of lighting device 1000 according to Embodiment 4. FIG. 10 is an exploded perspective view of lighting apparatus 1000 according to Embodiment 4. FIG. 10 is an exploded perspective view of lighting apparatus 1000 according to Embodiment 4. FIG. 6 is a cross-sectional view of lighting device 1000 according to Embodiment 4 taken along line AA. BB sectional drawing of the illuminating device 1000 in Embodiment 4. FIG. The fixed structure figure of the thermal radiation part 200 and the suspension part 900 in Embodiment 4. FIG. FIG. 10 is an enlarged view of C of lighting apparatus 1000 according to Embodiment 4. FIG. 6D is an enlarged view of D of lighting apparatus 1000 according to Embodiment 4. FIG. 10 is a diagram illustrating a fixing structure of a clip 950 and a cover 110 according to a fourth embodiment. The perspective view of the suspension part 900 in Embodiment 4. FIG. CC sectional drawing of the suspension part 900 in Embodiment 4. FIG. The E enlarged view of the suspension part 900 in Embodiment 4. FIG. Explanatory drawing of the packing 942 in Embodiment 4. FIG. FIG. 14 is another diagram showing the structure of fixing the clip 950 and the cover 110 according to the fourth embodiment. FIG. 14 is another fixed structure diagram of the heat dissipation unit 200 and the hanging unit 900 according to the fourth embodiment. FIG. 14 is another fixed structure diagram of the heat dissipation unit 200 and the hanging unit 900 according to the fourth embodiment. Another block diagram of the instrument shade 800 in the fourth embodiment. FIG. 16 is another configuration diagram of the instrument shade 800 and the arm 850 in the fourth embodiment. FIG. 14 is another configuration diagram of the mounting flange 930 in the fourth embodiment.

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. Moreover, in the following drawings, the relationship of the size of each component may be different from the actual one. Further, in the description of the embodiment, when directions, orientations, or positions such as up, down, left, right, front, back, front, back are indicated, those notations are described as such for convenience of explanation. However, it does not limit the arrangement or orientation of devices, instruments, parts, and the like.
In the following description, the metal is aluminum, iron, magnesium, zinc or other moldable metal material, or a metal material containing any of these. When a metal material is used, an oxide film, a coating film, etc. may be formed on the surface for the purpose of corrosion resistance, wear resistance, heat dissipation, etc., and preferably an aluminum oxide film is applied on the aluminum surface. Anodized is used.
Further, the resin is an acrylic (Polymethyl methacrylate: PMMA), polycarbonate (PC), polybutylene terephthalate (PBT) or other moldable resin material, or a resin material containing any of these, preferably Acrylic is used.

Embodiment 1 FIG.
*** Explanation of configuration ***
FIG. 1 is a six-sided view and a perspective view of the lighting apparatus 1000.
FIG. 2 is a perspective view of the lighting apparatus 1000.
Lighting device 1000 according to the present embodiment includes light source unit 100, heat radiation unit 200, connection unit 300, wiring unit 400, and fixing unit 500.
The central axis O is an axis that passes through the center of the lighting device 1000.

FIG. 3 is an exploded perspective view of the light source unit 100.
The light source unit 100 is a light source unit having a light source.
The light source unit 100 includes a light source substrate 150. The light source unit 100 includes at least one light source element 140, and a plurality of light source elements 140 are arranged and fixed on the light source substrate 150.
The light source unit 100 includes a cover 110 that covers the light source substrate, a reflection plate 120, and a cover stopper 130 that fixes the cover 110 and the reflection plate 120.
The light source unit 100 includes a stabilizer 160 that fixes the center of the light source substrate 150 to the heat receiving body 260.
The light source substrate 150 is fixed to the heat receiving body 260 while being sandwiched between the reflector 120 and the heat receiving body 260.
The light source substrate 150 is fixed to the heat receiving body 260 in a state of being sandwiched between the stabilizer 160 and the heat receiving body 260.
In the present embodiment, light source substrate 150 is not fixed to heat receiving body 260 using a metal component, but is fixed in a state of being separated from the metal component.

As shown in FIG. 2, the fixing unit 500 fixes the light source unit 100 and the connection unit 300.
In addition, the fixing unit 500 is fixed to the light source unit 100 and the connection unit 300 in a state of being sufficiently insulated from the light source unit 100, the connection unit 300, and the live part of the wiring unit 400.
The fixing unit 500 includes a plurality of plate-like arms 580.
In the present embodiment, the arm 580 also serves as a part of the heat sink, and is disposed between the light source unit 100 and the connection unit 300.
The plurality of arms 580 are fixed to the heat receiving body 260 and the connection portion 300.
There are four arms 580, which are arranged in a cross shape at intervals of 90 degrees.

As shown in FIG. 2, the heat radiating unit 200 is a heat sink for radiating operating heat of the light source element 140, and is disposed behind the light source unit 100.
The heat radiating unit 200 includes a heat receiving body 260, a plurality of heat radiating pieces 270, and a plurality of arms 580.
The heat receiving body 260 is a component to which the light source unit 100 is attached and which passes the operating heat of the light source unit 100.
The heat radiating piece 270 is a plate-shaped heat radiating fin which is a heat radiating body.
The arm 580 is a metal plate in which the heat receiving body 260 and the connection unit 300 are connected.
The arm 580 also serves as the heat radiating piece 270, and extends from the heat receiving body 260 to the connection portion 300.
The heat receiving body 260 has the light source unit 100 fixed to the front surface, and the plurality of heat radiation pieces 270 are fixed to the back surface of the heat receiving body 260.

As shown in FIG. 2, the connection portion 300 is a portion that is connected to a base socket of a lighting fixture and is electrically connected to an external power source.
The connection unit 300 includes a base 305 and a holder 390.
The base 305 is screwed and fixed to the base socket.
The holder 390 holds the base 305 and fixes the arm 580.

The wiring unit 400 electrically connects the base 305 and the light source unit 100.
As shown in FIG. 4, the wiring unit 400 includes a wiring cylinder 410 and a wiring material 430.
The wiring tube 410 is disposed between the light source unit 100 and the connection unit 300 in a stress-free manner.
The wiring member 430 is an electric wire arranged inside the wiring cylinder 410 and electrically connects the light source unit 100 and the connection unit 300.

<< Detailed description of parts >>
Hereinafter, the components will be described in detail with reference to the drawings.

<Cover 110 of Light Source 100>
As shown in FIG. 3, the cover 110 has a dish shape, a hemispherical shape, or a dome shape.
The cover 110 is fixed to the reflection plate 120 by covering a peripheral edge 111 with a ring-shaped packing 113.
The cover 110 is a transparent or translucent resin cover. In the present embodiment, the cover 110 is made of a mixed resin material in which a diffusing agent is mixed with acrylic, and is a milky white cover that diffuses and transmits light, and diffuses to reduce the graininess of the light source element 140 that is a point light source. It has a function.

<Light Source Element 140 of Light Source Unit 100>
The light source element 140 is an LED element that is surface-mounted on the light source substrate 150. As the LED element, for example, a pseudo white LED packaged by arranging a phosphor that converts blue light into yellow light on an LED chip that emits blue light having a wavelength of about 440 to 480 nm can be used (LED package).
As shown in FIG. 3, in this embodiment, the light source element 140 is an LED package, and the light source substrate 150 is an LED substrate. The light source elements 140 are arranged concentrically.

<Light Source Board 150 of Light Source Unit 100>
As shown in FIG. 4, the light source substrate 150 has a substantially square rectangular shape.
In the present embodiment, light source substrate 150 has four sides including a pair of parallel short sides 151 and a pair of parallel long sides 152.
The short side 151 is a short side shorter than the long side 152, and the long side 152 is a long side longer than the short side 151.
Further, the corner of the light source substrate 150 has four arc-shaped sides 153 that connect the four sides of the short side 151 and the long side 152.
The light source substrate 150 has a fitting hole 156 into which the stabilizer 160 is fitted at the center.
The insertion hole 156 has concave tooth supports 155 at two locations.
The two tooth supports 155 are not in the 180-degree direction, but the two tooth supports 155 are formed so that the central angle is 135 degrees.
A mark 154 is provided on the light source substrate 150. The mark 154 is a mark for designating the direction in which the stabilizer 160 is attached.
As the light source substrate 150, an aluminum substrate, a glass epoxy substrate, or the like is used.

<Insulation sheet 180 of light source unit 100>
The insulating sheet 180 is an insulating thin plate disposed between the light source substrate 150 and the heat receiving body 260. The insulating sheet 180 may be mixed with a heat conductive filler or the like.
The shape of the insulating sheet 180 is the same shape as the heat receiving body 260 and is circular.
The insulating sheet 180 has a wiring hole 181 into which the stabilizer 160 is fitted in the center.
There are two screw holes 182 on both sides of the wiring hole 181.

<Cover Stop 130 of Light Source 100>
As shown in FIG. 5, the cover stopper 130 has an annular shape.
The cover stopper 130 has screw holes 133 at four locations.
The cover stopper 130 has convex portions 134 at four locations on the inner surface.
The cover stopper 130 is made of metal.

<Reflector 120 of light source unit 100>
As shown in FIG. 6, the reflecting plate 120 has an annular shape and has a circular opening 129 in the center.
The diameter of the opening 129 is larger than the maximum diameter of the concentric array of light source elements 140 and smaller than any one side of the rectangular light source substrate 150.
The reflection plate 120 has an inclined reflection surface 121 on the inner peripheral surface.
The reflector 120 has an annular groove 122 on the surface.
The annular groove 122 is a recess into which the edge portion 111 of the cover 110 and the packing 113 are fitted.
The reflection plate 120 has notches 123 at four locations corresponding to the positions of the convex portions 134.
The reflection plate 120 has substrate holders 124 at four positions on the back surface.
The substrate retainer 124 has a shape composed of an arc-shaped side and a straight line, and has a shape that matches the shape of the corner of the light source substrate 150.
As shown in FIG. 14, the substrate retainer 124 is a surface that is recessed from the back surface by the thickness T of the light source substrate 150, and the substrate retainer 124 has a plurality of protrusions 126 for pressing the light source substrate 150.
The reflection plate 120 has a screw hole 125 on the outer side in the radial direction of the substrate holder 124.
The reflection surface 121 is also recessed from the back surface by the thickness T of the light source substrate 150, and the light source substrate 150 is pressed against the heat receiving body 260 with the entire annular end portion of the reflection surface 121.
The reflector 120 is made of resin.
The reflection plate 120 has a highly reflective material on the entire surface, or at least on the reflection surface 121.

<Stabilizer 160 of light source unit 100>
As shown in FIG. 7, the stabilizer 160 fixes the center of the light source substrate 150 to the heat receiving body 260 and makes the center of the light source substrate 150 adhere to the heat receiving body 260.
The stabilizer 160 has a dome shape disk shape.
The stabilizer 160 is made of resin.
The stabilizer 160 has a highly reflective material on the entire surface.

The stabilizer 160 has two screw holes 161 and is fixed to the heat receiving body 260 with two screws.
The center of the light source substrate 150 is fixed between the stabilizer 160 and the heat receiving body 260.
The stabilizer 160 has an insertion hole 461 at the center through which the wiring member 430 penetrating the tube stopper 162 is passed.

The stabilizer 160 has a tube stopper 162 into which the wiring tube 410 is fitted at the center of the back surface.
The tube stopper 162 includes a thick tube portion 163, a thin tube portion 165, and a thin tube portion 165.
The thick cylindrical portion 163 and the narrow cylindrical portion 165 are cylindrical bodies that form the insertion holes 461.
The thick tube portion 163 is thicker than the thin tube portion 165, and the diameter of the thick tube portion 163 is larger than the diameter of the thin tube portion 165.
The annular surface 164 is an annular ring surface formed by the difference in thickness between the thick tube portion 163 and the thin tube portion 165 in the radial direction.
The thick tube portion 163 and the thin tube portion 165 have an insertion hole 461 through which the wiring member 430 passes.

The stabilizer 160 has a wiring groove 166 and a wiring groove 167.
The wiring groove 166 and the wiring groove 167 are grooves in which the wiring material 430 is disposed.
The wiring groove 167 is not formed on a straight line, and the wiring groove 167 forms a curved groove.
The light source substrate 150 has two terminals 157. The central angle of the two terminals 157 is less than 180 degrees, and the outlets of the wiring grooves 166 and the wiring grooves 167 coincide with the positions of the two terminals 157.
The wiring groove 166 and the wiring groove 167 have a wide portion 173 whose width is increased on the outer periphery of the stabilizer 160. With the wide portion 173, the wiring member 430 can be freely routed in the left-right direction of the wiring groove 166 or the wiring groove 167.

The stabilizer 160 has a cylindrical fitting portion 170 and a pressing surface 171 formed of an annular flat surface around the fitting portion 170.
The fitting part 170 has the same shape as the fitting hole 156.
The fitting portion 170 has the same height as the thickness T of the light source substrate 150. When the fitting portion 170 is fitted into the fitting hole 156, the pressing surface 171 is in close contact with the surface of the light source substrate 150.
The fitting portion 170 has two tooth portions 168. The two tooth portions 168 are formed so that the central angle is 135 degrees. The tooth portion 168 is fitted into the tooth support 155 of the light source substrate 150.
The stabilizer 160 has a mark 169. The mark 169 is a mark for designating the direction in which the stabilizer 160 is attached to the light source substrate 150.
The mark 169 is aligned with the mark 154 so that the tooth portion 168 and the tooth receiver 155 are aligned.
As a result, the outlets of the wiring groove 166 and the wiring groove 167 coincide with the positions of the two terminals 157.

<Heat dissipation part 200>
The heat radiating unit 200 includes a heat receiving body 260 to which the light source unit 100 is fixed, a plurality of heat radiating pieces 270 and radiating pieces 275 fixed to the heat receiving body 260, and a plurality of arms fixed to the heat receiving body 260 and the connection unit 300. 580.

<The heat receiving body 260 of the thermal radiation part 200>
As shown in FIG. 4, the heat receiving body 260 is a disk-shaped metal plate.
The outer edge of the heat receiving body 260 is fitted inside the cover stopper 130.
The heat receiving body 260 has a screw hole 261 for a countersunk screw 190 (see FIG. 2A) for fixing the arm 580.
The heat receiving body 260 includes a caulking portion 262 that fixes the heat radiating piece 270.
The heat receiving body 260 has a wiring hole 264 through which the wiring material 430 is inserted by fitting the stabilizer 160 in the center.
The heat receiving body 260 has screw holes 263 that fix the stabilizer 160 on both sides of the wiring hole 264.
The heat receiving body 260 has a screw hole 265 for fixing the cover stopper 130.
The screw hole 263 and the screw hole 265 are holes that are threaded, and are holes into which screws are screwed.

<Heat radiation piece 270 and heat radiation piece 275 of heat radiation part 200>
The heat dissipating part 200 has 20 heat dissipating pieces 270 and 4 heat dissipating pieces 275. The 20 heat dissipating pieces 270 and the 4 heat dissipating pieces 275 are centered around the central axis O of the light source part 100. Arranged radially from the axis O.
The plurality of heat radiation pieces 270 and the plurality of heat radiation pieces 275 are fixed to the heat receiving body 260.
The heat radiating piece 270 and the heat radiating piece 275 are made of metal.

As shown in FIG. 8A, the heat radiating piece 270 is a heat radiating plate, and includes a heat radiating plate 271 having a substantially rectangular shape, and a fixing plate 272 orthogonal to the heat radiating plate 271 and fixed to the heat receiving body. .
In the heat dissipating piece 270 of FIG. 8A, two heat dissipating plates 271 are provided for one fixed plate 272.
Although the heat sink 271 has a substantially rectangular shape, it is partially cut into a curved line and has a shape along the inner surface of the lighting fixture.
The fixing plate 272 has a trapezoidal shape and has caulking portions 273 at two locations.
As shown in FIG. 8B, the heat dissipating piece 275 is also a heat dissipating plate, and has a heat dissipating plate 276 having a substantially rectangular shape, and a fixing plate 277 orthogonal to the heat dissipating plate 276 and fixed to the heat receiving body. .
In the heat dissipating piece 275 of FIG. 8B, one heat dissipating plate 276 is provided for one fixed plate 277. The heat sink 276 has the same shape as the heat sink 271.
The heat dissipating piece 275 is a heat dissipating plate attached to the arm 580 as a pair. The fixing plate 277 has a trapezoidal shape and has screw holes 278 at two locations.

<Arm 580 as fixed portion 500 and heat radiating portion 200>
As shown in FIG. 2, the plurality of arms 580 that are the fixing unit 500 are arranged radially from the central axis O around the central axis O of the light source unit 100.
Each arm 580 also functions as a heat dissipation plate of the heat dissipation unit 200. In FIG. 2, four orthogonal arms 580 are shown.
The four arms 580 are fixed to the light source unit 100 and the connection unit 300 apart from each other in order to ensure air permeability.
The arm 580 is made of metal.

As shown in FIG. 9, each arm 580 has a basic plate portion 581 disposed between the heat receiving body 260 and the connection portion 300. The basic plate portion 581 has an L shape, a right triangle shape, or a shape in which the hypotenuse of the right triangle is dented.
Each arm 580 includes a heat receiving plate portion 582 that is orthogonal to the basic plate portion 581 and fixed to the heat receiving body 260, and a connection plate portion 583 that is orthogonal to the basic plate portion 581 and fixed to the connecting portion 300.
The heat receiving plate portion 582 has a screw hole 588 that is threaded.
The connection plate portion 583 has a threaded screw hole 589.
Each arm 580 has a reinforcing plate portion 584 orthogonal to the basic plate portion 581 between the heat receiving body 260 and the connecting portion 300.
The heat receiving plate portion 582 and the connection plate portion 583 are bent in the same direction (same direction), and the arm 580 has a U shape.
The arm 580 may be Z-shaped with the heat receiving plate portion 582 and the connecting plate portion 583 bent in opposite directions (opposite directions).
The basic plate portion 581 includes a heat radiating portion 586 and an extension portion 587.
The heat radiating portion 586 has the same shape as the heat radiating plate 271.
The extension 587 has a wire hole 585. The extension 587 has a threaded screw hole 590.

The fixing unit 500 fixes the light source unit 100 and the connection unit 300, and the fixing unit 500 includes a plurality of plates including the arms 580. Is fixed.
In addition, the fixing unit 500 is fixed to the light source unit 100 and the connection unit 300 in a state of being sufficiently insulated from the light source unit 100, the connection unit 300, and the live part of the wiring unit 400.

<Connection unit 300>
As shown in FIG. 10, the connection unit 300 includes a base 305, a support 310 on which the base 305 is fixed, a holder 390 that attaches the support 310 to the fixing unit 500, and a lid 320 that covers the support 310. Have.
The holder 390 and the lid part 320 are formed using an electrically insulating material, and thereby the connection part 300 and the fixing part 500 are fixed in a state of being insulated from each other.
The connection part 300 further includes a ring 340 that covers the periphery of the lid part 320, and a drop stopper 350 that is hooked on the ring 340 and the fixing part 500.
The screw 360 is passed through the screw holes of the upper hook 352 at one end of the drop stopper 350, the ring 340, the lid portion 320, the fixing portion 500, and the lower hook 353 at the other end of the drop stopper 350 to be fixed. Screwed to the part 500.

<Base 305 of Connection Unit 300>
As shown in FIG. 10, the base 305 is a power receiving end that receives power supplied from an external power source, and includes a base casing 301 and an eyelet 302.
The base housing 301 is made of metal.

<Support 310 of Connection 300>
As shown in FIG. 10, the support 310 has a cylindrical shape having ridges.
The support 310 is made of metal.
The support 310 has a joint portion 311 into which the base 305 is screwed.
The support 310 has a caulking portion 316 that caulks the end of the base casing 301. The end of the base casing 301 may be further soldered at the caulking portion 316.
The support 310 has a cylindrical support cylinder portion 312.
The support 310 has a support collar 313 at one end of the support cylinder 312. The support collar 313 has a shape in which four portions are cut out from the annular shape.
The support collar part 313 has four U-shaped receiving parts 314 arranged at intervals of 90 degrees.
The support collar 313 has four C-shaped wall receiving portions 315 arranged at intervals of 90 degrees.
The U-shaped receiving part 314 and the C-shaped wall receiving part 315 are in the same place and form a notch in the support collar part 313.
The C-shaped wall receiving part 315 is a C-shaped notch and has a larger notch than the U-shaped receiving part 314.
The U-shaped receiving portion 314 forms a U-shaped space in which the screw enclosure 324 of the lid portion 320 is disposed.
The C-shaped wall receiving portion 315 forms a C-shaped space in which the C-shaped wall 397 of the holder 390 is disposed.
The support 310 is less likely to be damaged such as deformation, cracking, or chipping even when the base 305 is firmly caulked. That is, the base 305 can be firmly caulked to the metal support 310.
In this embodiment, the support 310 is configured not to contact the screw 360 so that the support 310 and the screw 360 are sufficiently insulated.

<Cover 320 of Connection Unit 300>
As shown in FIG. 10, the lid 320 has a disk shape with an opening at the center.
The lid 320 is formed using a material having electrical insulation, and is made of resin in the present embodiment.
The lid portion 320 has a lid hole 322 that allows the joint portion 311 to pass therethrough in the center.
The lid part 320 has a small cylinder part 321 that covers the periphery of the support cylinder part 312.
The lid part 320 has a large cylinder part 323 that covers the support collar part 313.
The lid part 320 has a ring arrangement surface 326 between the small cylinder part 321 and the large cylinder part 323. The ring arrangement surface 326 is an annular flat surface formed by the difference in thickness between the small tube portion 321 and the large tube portion 323 in the radial direction.
The large cylinder part 323 has screw enclosures 324 corresponding to the notches of the support collar part 313 at four locations on the inner periphery. A screw hole 325 through which the screw 360 is passed is formed in the screw enclosure 324.
The outer shape of the screw enclosure 324 is the same as the inner shape of the U-shaped receiving portion 314, and the screw enclosure 324 is fitted into the U-shaped receiving portion 314.
By using the lid part 320 configured in this way, the support 310 and the screw 360 are sufficiently insulated.

<Ring 340 of Connection Unit 300>
As shown in FIG. 10, the ring 340 is a thin flat plate and has an annular shape.
The ring 340 is made of metal.
The ring 340 has a lid hole 322 through which the small tube portion 321 passes in the center.
The ring 340 is arranged on the ring arrangement surface 326.
The ring 340 has the same inner diameter as the outer diameter of the small cylinder part 321 and has the same outer diameter as the outer diameter of the large cylinder part 323.
The inner diameter of the ring 340 is smaller than the outer diameter of the support collar 313.
The ring 340 has four screw holes 341 arranged at intervals of 90 degrees.
By using the ring 340 configured in this manner, the support 310 and the arm 580 are securely fixed over a long period of time by screwing.

<Drop stopper 350 of connection part 300>
As shown in FIG. 10, the fall stopper 350 is a thin flat plate and has a U shape.
The drop stopper 350 is made of metal.
The fall stopper 350 has an upper hook 352 and a lower hook 353 that are bent 90 degrees.
The upper hook 352 and the lower hook 353 have a passage hole 351 through which the screw 360 passes.
The passage hole 351 has a diameter larger than that of the body of the screw 360.
By using the fall stopper 350 configured in this way, the support 310 and the arm 580 are more securely fixed over a long period of time by screwing.

<Holder 390 of connection unit 300>
As shown in FIGS. 10 and 11, the holder 390 has a shape in which a cross wall is provided on the disk.
The holder 390 is formed using a material having electrical insulation, and is made of resin in this embodiment.
The holder 390 includes a board portion 391 that is in close contact with the support 310 and a standing portion 392 that is fixed to the arm 580.
The disc part 391 has a disc shape.
The upright portion 392 is a cross plate orthogonal to the board portion 391 and has a surface perpendicular to the heat receiving body 260.
The board part 391 has an insertion hole 462 through which the wiring member 430 passes.
The standing portion 392 has a pipe hole 393 through which the wiring tube 410 passes.

As shown in FIG. 11, the board part 391 has four U-shaped notches 396 arranged at intervals of 90 degrees.
The board part 391 has four C-shaped walls 397 arranged at intervals of 90 degrees.
The U-shaped notch 396 and the C-shaped wall 397 are in the same place and form a notch in the board portion 391.
The C-shaped wall 397 is a standing wall protruding from the back surface of the board portion 391, and is a C-shaped wall disposed around the screw enclosure 324.
The inner shape of the U-shaped notch 396 and the inner shape of the C-shaped wall 397 are the same U-shape as the outer shape of the screw enclosure 324, and form a U-shaped space in which the screw enclosure 324 of the lid portion 320 is disposed. The screw enclosure 324 is fitted into the U-shaped space formed by the U-shaped notch 396 and the C-shaped wall 397.
The outer shape of the C-shaped wall 397 is the same C shape as the inner shape of the C-shaped wall receiving portion 315, and the C-shaped wall 397 is fitted into the C-shaped space formed by the C-shaped wall receiving portion 315.

The standing portion 392 includes four standing plates 381 arranged in a cross direction intersecting with the central axis O.
The upright plate 381 has a threaded screw hole 398 for fixing the basic plate portion 581.
The upright plate 381 has a rectangular shape, and is arranged in parallel with the central axis O and approximately radially from the central axis O at intervals of 90 degrees.
The width of the upright plate 381 in the radial direction is the same as or slightly larger than the extension portion 587 of the arm 580.
The length of the upright plate 381 in the direction of the central axis O is up to the front of the screw hole 398 of the extension portion 587 of the arm 580.
A pipe hole 393 is provided at the center of the four standing plates 381, and the four standing plates 381 are joined around the pipe hole 393.
As shown in FIG. 16B, the two standing portions 392 arranged in the 180-degree direction are not on a straight line, but a cross in which the basic plate portion 581 of the arm 580 to be fixed intersects with the central axis O. It is arranged at a position shifted from the central axis O so as to overlap the direction. That is, the two standing portions 392 arranged in the 180-degree direction are arranged at positions shifted by the thickness of the basic plate portion 581.
By using the cover part 320 configured in this way, the support 310 and the arm 580 are sufficiently insulated.

<Wiring unit 400>
As shown in FIG. 7, the wiring unit 400 includes a wiring cylinder 410 and a wiring material 430. A wiring path is formed inside the lighting apparatus 1000 by the wiring unit 400 so that the wiring material 430 is not exposed to the outside.

<Wiring tube 410>
The wiring cylinder 410 is a metal pipe having a constant inner diameter and outer diameter.
As shown in FIG. 12, the wiring tube 410 is disposed such that the tube axis (cylinder center axis) overlaps the center axis O, and is disposed between the light source unit 100 and the connection unit 300.
The wiring tube 410 is disposed in a space surrounded by four reinforcing plate portions 584.
As shown in FIGS. 12A and 12B, one end of the wiring tube 410 is fitted into the tube stopper 162.
As shown in FIG. 12C, the other end of the wiring cylinder 410 is in contact with the board portion 391.

<Wiring material 430>
The wiring member 430 is an electric wire that is disposed inside the wiring tube 410 and electrically connects the light source unit 100 and an external power source connected to the connection unit 300.
The wiring member 430 passes through the insertion hole 462 of the board portion 391, the wiring tube 410, and the insertion hole 461 of the stabilizer 160, and connects the base 305 and the light source substrate 150.
The wiring member 430 extends from the base 305, is inserted into the wiring tube 410 that passes through the holder 390, and is taken out from the stabilizer 160. The extracted wiring member 430 is coupled to the light source substrate 150 and is electrically connected to the light source element 140.

A wiring member 430 for energization extends from the holder 390 to which the base 305 is attached, and the wiring member 430 is connected to the light source substrate 150 to obtain a function as a lighting device.
The wiring section 400 includes a cylindrical wiring tube 410 made of metal and a stabilizer 160 made of a low thermal conductivity material, and the wiring material 430 is inserted into the internal space of the wiring tube 410 and the insertion hole 461 of the stabilizer 160. .
The stabilizer 160 is fixed to the heat receiving body 260, and the movement of the wiring tube 410 is restricted by the stabilizer 160 and the holder 390. Here, the restriction of movement means fixing that allows play to the extent that it cannot be easily removed, and does not mean joining with screws, caulking, bonding, or the like. In particular, the degree of fixation means that heat conduction cannot be expected (the contact thermal resistance is sufficiently high).

<Fall prevention mechanism 600>
The illumination device 1000 may be provided with a fall prevention mechanism 600 for preventing the fall.
The fall prevention mechanism 600 includes a wire hole 585 and a wire 621 formed in the arm 580.
The illuminating device 1000 prevents the fall by inserting the wire 621 through the wire hole 585 formed in the arm 580.
The wire 621 is made of metal.
As shown in FIG. 13, the lighting device 1000 is attached to a lighting fixture 614.
The lighting fixture 614 is suspended from the ceiling 610 by a hanging tool 612.
The lighting fixture 614 includes a socket 613 and a base 305 of the lighting device 1000 is attached.
The arm 580 has a wire hole 585 through which the wire 621 passes.
As shown in FIG. 13A, the wire 621 is passed through one wire hole 585 and fixed to the ceiling 610 with a metal fitting 611.
As shown in FIG. 13B, the wire 621 is passed through the four wire holes 585 and fixed to the ceiling 610 with a metal fitting 611.
As shown in FIG. 13C, the wire 621 is passed through one wire hole 585 and a through hole 619 and fixed to the ceiling 610 with a metal fitting 611.
The wire 621 is inserted through a through-hole 619 formed at the end of the cover stopper 130 to serve as a fall prevention function for the cover stopper 130 alone.
It is desirable to insert rubber grommets into the wire hole 585 and the through hole 619 to prevent the wire 621 from being damaged. Alternatively, it is desirable to coat the wire 621 with a resin.

<Fixing structure of light source unit 100>
As shown in FIG. 3, the diameter D <b> 1 of the cover stopper 130 is the maximum diameter of the lighting device 1000.
The diameter D5 of the heat receiving body 260 is the same as the diameter of the reflector 120.
The diameter D2 of the cover 110 is smaller than the outer diameter D3 of the annular groove 122 and larger than the inner diameter D4 of the annular groove 122.
The outer diameter of the packing 113 is smaller than the outer diameter D3 of the annular groove 122, and the inner diameter of the packing 113 is larger than the inner diameter D4 of the annular groove 122.

FIG. 14 shows a schematic cross-sectional structure of the light source unit 100.
The insulating sheet 180 is disposed on the heat receiving body 260, and the light source substrate 150 is disposed on the insulating sheet 180.
The light source substrate 150 is pressed against the heat receiving body 260 along the entire circumference of the lower end surface 119 of the reflecting surface 121.
The light source substrate 150 is pressed against the heat receiving body 260 at four corners by substrate retainers 124.
In the substrate holder 124, the corner of the light source substrate 150 is pressed against the heat receiving body 260 by the protrusion 126.
A screw 115 is provided on the outer side in the radial direction of the substrate retainer 124 so that the corner of the light source substrate 150 is securely fixed.

The edge 111 of the cover 110 and the packing 113 are disposed in the annular groove 122, and the annular groove 122 is covered with the cover stopper 130.
The cover stopper 130 is fixed to the heat receiving body 260 by tightening the screw 115.
By fixing the cover stopper 130 to the heat receiving body 260, the packing 113 and the edge 111 are fixed to the annular groove 122, and the cover 110 is fixed to the heat receiving body 260.
Since the edge portion 111 and the bent portion 112 of the cover 110 are outside the reflecting surface 121 in the radial direction and are embedded in the annular groove 122, the edge portion 111 and the bent portion 112 are light paths of the light source element 140. Not disturb.
Since the end portion 135 of the cover stopper 130 is also on the outer side in the radial direction of the reflecting surface 121 and on the outer side of the cover 110, the end portion 135 does not disturb the light path of the light source element 140.
As described above, the light source unit 100 includes the cover 110 that covers the light source substrate 150 and the reflection plate 120 and the cover stopper 130, and the cover 110 is fixed between the reflection plate 120 and the cover stopper 130. The stop 130 is fixed to the heat receiving body 260.

<Insulation (electric shock prevention) structure of connection part 300>
As shown in FIGS. 15 and 16, the connection portion 300 includes a resin lid portion 320 and a holder 390 having electrical insulation properties, and covers the metal support 310. Further, the screw enclosure 324 of the resin lid 320 covers the metal screw 360. Thus, the creeping distance between the metal parts is ensured by covering the metal parts with the resin parts.
Further, a C-shaped wall 397 is provided on the holder 390 in order to increase the creeping distance between the metal connecting plate portion 583 and the metal support 310.
As shown in FIG. 17, if there is no C-shaped wall 397, the creeping distance between the metallic connecting plate portion 583 and the metallic support 310 is the thickness T1 of the board portion 391, but the C-shaped wall 397. If there is, the creeping distance between the metal connection plate portion 583 and the metal support 310 is a distance obtained by adding the thickness T1 of the panel portion 391 and the height T2 of the C-shaped wall 397. Can be secured.
The creeping distance between the metal screw 360 and the metal support 310 also increases by the height T2 of the C-shaped wall 397 in the direction of the central axis O and the radial direction with respect to the direction of the central axis O if the C-shaped wall 397 is provided. , The radial length of the C-shaped wall 397 increases by T3.
Thus, by using the cover part 320 and the holder 390, the support 310 is sufficiently insulated from the screw 360 and the arm 580.

<Drop prevention structure of connection part 300>
As shown in FIG. 17, the connection portion 300 includes a metal ring 340 that covers the periphery of the resin lid portion 320.
Since the lid part 320 is made of resin, it may be deteriorated due to secular change or melted at a high temperature. When the screw 360 is fixed to the lid portion 320, the screw 360 is also dropped due to breakage of the lid portion 320, and as a result, the light source unit 100 and the heat radiating unit 200 may fall. If the periphery of the resin lid 320 is covered with the metal ring 340 and screwed from the ring 340, the screw 360 will not fall off as long as the ring 340 remains even if the lid 320 is damaged. Since the inner diameter of the ring 340 is smaller than the outer diameter of the support 310, the ring 340 will not fall out of the support 310, and the ring 340 will not fall from the support 310 even if the cover 320 is completely lost. Absent.
Thus, by using the ring 340, the support 310 and the arm 580 are securely fixed over a long period of time by screwing.

As shown in FIG. 17, the connection portion 300 has a metal drop stopper 350.
The drop stopper 350 sandwiches the metal ring 340 and the metal connection plate portion 583.
There is a gap S between the connecting plate portion 583 and the lower hook 353.
When the screw 360 is loosened due to the vibration of the illumination device 1000, the connection plate portion 583 may be detached from the screw 360 without the drop stopper 350, and the light source unit 100 and the heat radiation unit 200 may fall. With the drop stopper 350, when the screw 360 is loosened, the connection plate portion 583 is lowered only by the gap S due to gravity, but does not go below the lower hook 353. The connecting plate portion 583 is suspended by the screw 360 between the upper hook 352 and the lower hook 353, but the light source portion 100 and the heat radiating portion 200 are not dropped.
Thus, by using the fall stopper 350, the support 310 and the arm 580 are more securely fixed over a long period of time by screwing.

<Structure of heat radiation part 200>
As shown in FIG. 18, there is a space having a diameter W <b> 1 at the center of the heat dissipating piece 270 of the heat dissipating unit 200.
Further, there is a space having a diameter W1 at the center of the arm 580.
The heat radiating plates 271 adjacent to the heat radiating pieces 270 are evenly arranged at the central angle θ.
The distance between the adjacent heat sinks 271 becomes narrower toward the center, but the ends of the adjacent heat sinks 271 in the center direction are separated by the distance K1, and the space of the distance K1 is in contact with the space of the diameter W1. Ensures breathability.
Further, in the space with the diameter W1, the interval between the adjacent arms 580 becomes narrower toward the center, but the ends in the center direction of the adjacent arms 580 are separated by the interval K2, and the space with the interval K2 has a diameter W2. It is in contact with the space and ensures breathability.

<Structure of wiring unit 400>
As shown in FIGS. 16B and 16C, the pipe hole 393 forms a small opening 395 at a place in contact with the board portion 391, and forms a large opening 394 on the side where the light source unit 100 exists, The pipe hole 393 forms a frustoconical space.
As shown in FIG. 16C, the inner diameter of the wiring tube 410 is larger than the outer diameter of the thin tube portion 165 and smaller than the outer diameter of the thick tube portion 163. Therefore, the thin tube portion 165 can be inserted into one end of the wiring tube 410, and the end surface of the wiring tube 410 comes into contact with the annular surface 164 in contact.
As shown in FIGS. 16B and 16C, the outer diameter of the wiring tube 410 is smaller than the inner diameter of the small opening 395 of the pipe hole 393 of the standing portion 392 and larger than the inner diameter of the insertion hole 462 of the board portion 391.
As shown in FIG. 16C, the other end of the wiring tube 410 is in contact with the board portion 391. The end face of the other end of the wiring tube 410 is in contact with the surface of the board portion 391 around the insertion hole 462.
Since the length of the wiring tube 410 is smaller than the distance between the annular surface 164 and the board portion 391, the wiring tube 410 can move in the length direction. Further, since the inner diameter of the wiring cylinder 410 is larger than the outer diameter of the narrow cylinder portion 165 and the outer diameter of the wiring cylinder 410 is smaller than the inner diameter of the small hole 395 of the pipe hole 393, the wiring cylinder 410 is movable in the radial direction. . Thus, the wiring tube 410 is disposed between the light source unit 100 and the connection unit 300 in a stress-free manner.
Since the pipe hole 393 is a frustoconical space, the outer peripheral surface of the wiring cylinder 410 does not contact the inner peripheral surface of the pipe hole 393 except for the place where the pipe hole 391 is in contact, and heat is not easily transmitted to the wiring cylinder 410. . For this reason, the operation heat of the light source element 140 is not easily transmitted to the wiring member 430, and the wiring member 430 is not required to have a high heat resistance temperature.

As shown in FIG. 16B, the radial length W4 of the arm 580 is slightly smaller than the radial length W3 of the standing plate 381 of the holder 390. When the illumination device 1000 is handled by hand, the radius of the standing plate 381 of the resin holder 390 is increased to prevent the hand from being damaged at the edge of the metal arm 580.
The end of the standing plate 381 of the holder 390 may be bent into an L shape so as to cover the end surface of the metal arm 580.

<Manufacturing method of lighting device>
<The manufacturing method of the fixing | fixed part 500 and the thermal radiation part 200>
The heat dissipating unit 200 is a heat dissipating body in which a plurality of plate-shaped heat dissipating pieces 270 are provided on the back surface of the disk-shaped heat receiving body 260.
An aluminum sheet metal having a thickness of 0.5 mm is punched and further bent to produce 20 heat radiation pieces 270.
An aluminum sheet metal having a thickness of 0.5 to 1.5 mm is punched and further bent to produce four heat dissipating pieces 275.
An aluminum sheet metal having a thickness of 1.5 mm is punched and further bent to produce four arms 580.
Next, the plate-shaped heat radiation pieces 270 are arranged radially on the heat receiving body 260 so that the plurality of heat radiation pieces 270 are erected from the back surface of the heat receiving body 260 toward the connection portion 300. It is caulked and fixed to the heat receiving body 260.
In order to reduce the number of parts, this caulking is preferably dowel caulking in which a caulking part 273 having a hole is joined by being deformed by pressure through a caulking part 262 that has been subjected to dowel (half punching) processing.
Next, the arm 580 and the heat radiating piece 275 are fixed to the heat receiving body 260. The heat dissipating piece 275 is used to maintain a heat dissipating balance.
By providing the heat dissipating piece 275, the heat dissipating piece 270, the arm 580, and the heat dissipating piece 275 are all arranged at equal central angles, and the heat dissipating balance can be maintained.
First, the fixing plate 277 of the heat dissipating piece 275 is disposed on the heat receiving body 260, and further, the heat receiving plate portion 582 of the arm 580 is disposed on the heat receiving body 260, and then the flat screw 190 is inserted from the screw hole 261 of the heat receiving body 260 Then, the screw hole 278 and the screw hole 588 are passed and tightened with a nut.
As a result, the arm 580 and the heat radiating piece 275 are fixed toward the connection portion 300.
In this way, the heat dissipation unit 200 is completed.
In addition, the screw hole 588 of the heat receiving plate portion 582 may be configured such that the flat head screw 190 is directly screwed. Moreover, the order of the assembly described above is an example, and the assembly may be performed in an order other than this.

<Method for Manufacturing Connection Part 300>
As shown in FIG. 10, first, the eyelet 302 is fixed to the base 305 inside the base case 301.
Next, the engagement portion 311 of the support 310 is inserted into the cover hole 322 of the lid 320 so that the screw enclosure 324 of the lid 320 fits into the U-shaped receiving portion 314 of the support 310.
Next, in a state where the wiring member 430 is inserted into the joint portion 311 of the support 310, the base case 301 of the base 305 is screwed into the joint portion 311 of the base 310, and the base case 301 of the base 305 and the eyelet are connected. One end of the wiring member 430 is connected to 302.
Next, the end of the base casing 301 of the base 305 is caulked to the caulking portion 316 of the support 310, and the base 305 is fixed to the support 310. The caulking portion 316 may reinforce the base casing 301 and the support 310 by soldering or the like.
In this embodiment, since the base case 301 and the support 310 are both metal, the base case 301 is securely fixed by caulking to the support 310 and is more firmly fixed by reinforcing by soldering or the like. .
Next, the ring 340 is inserted into the small cylinder part 321 of the lid part 320.
Next, the wiring member 430 is inserted from the insertion hole 462 of the holder 390 toward the pipe hole 393.
Next, the wiring member 430 is inserted into the wiring cylinder 410, and the wiring cylinder 410 is inserted into the pipe hole 393 of the holder 390 from one end side with the wiring member 430 inserted.
Next, the holder 390 is fitted so that the C-shaped wall 397 of the holder 390 fits into the C-shaped wall receiving part 315 of the support 310 and the U-shaped notch 396 of the holder 390 fits the screw enclosure 324 of the lid 320. 390 is attached to the support 310 and the lid 320.
Further, the other end side of the wiring member 430 is inserted into the wiring hole 264 of the heat receiving body 260 and dropped so as to sandwich the connection plate portion 583, the ring 340, the screw enclosure 324 of the lid portion 320, and the connection plate portion 583 of the arm 580. Put stop 350.
Next, the screw 360 is inserted from the screw hole 341 of the ring 340.
The screw 360 is inserted from the passage hole 351 of the upper hook 352 of the drop stopper 350 into the screw enclosure 324 of the lid portion 320 and screwed into the screw hole 589 formed in the connection plate portion 583 of the arm 580. The screw 360 is screwed into the screw hole 589 until it passes through the passage hole 351 of the lower hook 353 of the drop stopper 350.
The screw 360 tightly fixes the upper hook 352, the ring 340, the screw enclosure 324, and the connection plate portion 583 at one end of the drop stopper 350.
That is, the screw 360 is passed through the screw holes of the upper hook 352 of one end of the drop stopper, the ring 340, the lid 320, the fixing portion 500, and the lower hook 353 of the other end of the drop stopper, and the screw 360 is fixed. Screw on part 500.
Finally, the holder 390 and the arm 580 are screwed with the screw 399 using the screw hole 398 of the holder 390 and the screw hole 590 of the arm 580.
In this way, the connection unit 300 is completed.
The other end portion of the wiring member 430 is inserted into the insertion hole 461 of the stabilizer 160 attached to the heat receiving body 260, and the other end portion of the wiring tube 410 is fitted into the tube stopping portion 162 of the stabilizer 160.
Moreover, the order of the assembly described above is an example, and the assembly may be performed in an order other than this.

<Fixing method of fixing part 500>
The fixing unit 500 includes four arms 580, and the light source unit 100 and the connection unit 300 are fixed only by the four arms 580.
The arm 580 is bent in a cross-sectional shape such as a “U” shape or a “Z shape”.
The heat receiving plate portion 582 at one end of the arm 580 is fixed to the back surface of the heat receiving body 260 using a flat head screw 190 together with the fixing plate 277 of the heat radiating piece 275.
Further, the connection plate portion 583 at the other end of the arm 580 is attached to the plate portion 391 of the holder 390 with a screw 360.
Further, the basic plate portion 581 of the arm 580 is attached to the standing portion 392 of the holder 390 by a screw 399.
Since the connecting plate portion 583 of the arm 580 and the plate portion 391 of the holder 390 have a surface that is horizontal to the heat receiving body 260, the basic plate portion 581 of the arm 580 is fixed to the plate portion 391 of the holder 390. Can do.
Since the basic plate portion 581 of the arm 580 and the standing portion 392 of the holder 390 have a surface perpendicular to the heat receiving body 260, the basic plate portion 581 of the arm 580 and the standing portion 392 of the holder 390 are fixed together. be able to.
The arm 580 and the holder 390 are fixed on the heat receiving body 260 and two surfaces, a horizontal surface and a substantially vertical surface.
As described above, the heat receiving plate portion 582 is fixed to the heat receiving body 260, and the connection plate portion 583 and the basic plate portion 581 are fixed to the holder 390, whereby the light source unit 100 and the connection portion 300 are fixed. .
The order of assembly described above is an example, and the order may be assembled in other order.

<Method for Manufacturing Light Source Unit 100>
As shown in FIG. 3 and FIG. 4, the insulating sheet 180 and the light source substrate 150 are stacked on the heat receiving body 260, and the stabilizer 160 is fitted.
When the stabilizer 160 is fitted, if the mark 154 and the mark 169 are arranged so as to coincide with each other, the tooth receiver 155 and the tooth portion 168 coincide with each other so that the stabilizer 160 is easily fitted. When the fitting portion 170 of the stabilizer 160 is fitted into the fitting hole 156 of the light source substrate 150, the screw hole 161, the screw hole 182, and the screw hole 263 are in the same position, and the stabilizer 160 is screwed to the heat receiving body 260 with the screw 115. Stop.
The center of the light source substrate 150 is pressed by the pressing surface 171 of the stabilizer 160, and the periphery of the light source substrate 150 is suppressed by the reflecting surface 121 of the reflecting plate 120 and the substrate pressing member 124. In this state, the back surface of the light source substrate 150 of the light source unit 100 is fixed to the surface of the heat receiving body 260.
Next, the wiring member 430 drawn out from the insertion hole 461 is soldered to the terminal 157.
Next, the reflection plate 120 is overlaid so that the corner of the light source substrate 150 coincides with the substrate holder 124, and the cover 110 with the packing 113 attached is fitted into the annular groove 122, and the cover stopper 130 covers the cover. Then, the cover stopper 130 is screwed to the heat receiving body 260 with the screw 115. If strength is maintained, it may be fixed by caulking instead of screws.
In this way, the light source unit 100 is completed.
The order of assembly described above is an example, and the order may be assembled in other order.

<< Explanation of action and effect >>
The effect of this Embodiment is demonstrated.

Since lighting apparatus 1000 according to the present embodiment is small in weight and light, it is possible to implement a fall prevention measure with a simple configuration.
The light source substrate 150 is fixed to the heat receiving body 260, so that heat generated from the light source element 140 is conducted and reaches the fin-shaped heat radiation piece 270 attached to the heat receiving body 260 to be radiated. The heat receiving body 260 and the arm 580 have a heat radiation function.
The arm 580 of the heat radiating unit 200 is a metal plate, one of which is fixed to the heat receiving body 260 and the other is attached to the holder 390, and the light source unit 100 and the connecting unit 300 are fixed by a plurality of plates.

The arm 580 is fixed to the heat receiving body 260, and the shape of the arm 580 is a plate shape in which a fin-like heat radiation piece 270 is extended in the direction of the base 305. Since the arm 580 has a plate shape, the air flow is promoted, and the arm 580 has the same heat radiation function as the fin-shaped heat radiation piece 270, so that the heat radiation efficiency is improved.
Also, one side of the arm 580 is bent, and the surface of the heat receiving plate portion 582 is attached to the surface of the heat receiving body 260 from the center to the outer periphery in the radial direction with respect to the heat receiving body 260, so that compared with a conventional rod-shaped or cylindrical part High strength can be obtained and light weight can be achieved. Furthermore, since the arm 580 is plate-like and has elasticity in the surface direction, an excessive moment force is applied to the base 305 of the lighting device 1000 or the socket 613 of the lighting device 614 when the lighting device 1000 is attached to the lighting device 614. And can be absorbed by arm 580. Furthermore, even when vibration is applied to the lighting device 1000 or the lighting fixture 614, the base socket and the base 305 are not loosened, and the vibration resistance of the lighting device 1000 can be obtained.

  In addition, the arm 580 that connects the light source unit 100 and the connection unit 300 is not a die-cast cylindrical body as in the prior art, but is a thin heat dissipating fin.

If the shapes of the light source unit 100 and the connection unit 300 are made common and the shapes of the heat radiating unit 200, the wiring unit 400, and the fixing unit 500 are changed, it can be adapted to various shapes of lighting fixtures. Moreover, the height of the illuminating device 1000 can be changed by changing the height of only the wiring part 400 and the fixing part 500.
Further, the light source unit 100 and the connection unit 300 can be shared with other types of lamps (HID alternative LED lamps).
The holder 390 can be shared with other types of lamps (HID alternative LED lamps).

Since the reflection plate 120 presses and fixes the light source substrate 150 to the heat receiving body 260, efficient heat transfer to the heat receiving body 260 of the heat radiating unit 200 is possible.
Further, since the stabilizer 160 presses and fixes the center of the light source substrate 150 against the heat receiving body 260, efficient heat transfer from the light source substrate 150 to the heat receiving body 260 of the heat radiating unit 200 is possible.
Since the light source substrate 150 is fixed only by the resin reflector 120 and the stabilizer 160 and is not fixed by a metal component, a short circuit from the light source substrate 150 to the metal component can be prevented.

Since the base 305 and the support 310 are made of metal, the base 305 and the support 310 can be securely fixed.
Since the ring 340, the support 310, the drop stopper 350, the screw 360, and the arm 580 are made of metal, the light source unit 100 and the heat radiating unit 200 can be prevented from falling.
Since the metal support 310 is covered with resin parts and the creepage distance is secured, electric shock can be prevented.

Since the wiring member 430 is inserted through the wiring tube 410 attached in a stress-free manner instead of the main heat dissipation function, high-quality electrical connection can be realized.
Moreover, since the wiring cylinder 410 is made of metal, the wiring member 430 can be protected from damage. Furthermore, since only the both ends of the wiring tube 410 are held only by the resin stabilizer 160 and the resin holder 390, the heat of the wiring tube 410 is not easily transmitted. For this reason, the wiring material 430 can be protected from high heat.
Further, the wiring member 430 is not led out directly from the metal wiring tube 410 to the outside, but is led out from the resin stabilizer 160 and the resin holder 390, so that the covering of the wiring member 430 is covered. There is no damage.

Embodiment 2. FIG.
In this embodiment, differences from the first embodiment will be described.

<Light source unit 100>
As illustrated in FIG. 19, the light source unit 100 may not include the reflecting plate 120.
The cover stopper 130 is screwed to the heat receiving body 260 by pressing the cover 110 fitted with the packing 113 against the light source substrate 150.
The light source substrate 150 is pressed against the heat receiving body 260 by the packing 113 and the stabilizer 160.

19 includes a light source unit 100 having a light source substrate 150 and a cover 110 covering the light source substrate 150, and a heat receiving body 260 to which the light source unit 100 is fixed. The light source board 150 is fixed to the heat receiving body 260 in a state of being sandwiched between the cover 110 and the heat receiving body 260, and the light source board 150 is not fixed to the heat receiving body 260 using a metal part. It is fixed in a separated state.
The light source unit 100 includes a stabilizer 160, and the light source substrate 150 is fixed to the heat receiving body 260 while being sandwiched between the stabilizer 160 and the heat receiving body 260.
Note that the shape of the cover 110 may be a planar shape or a lens shape.

<Fall prevention mechanism 600>
As the fall prevention mechanism 600, there is a fall lock 618 for the cover stopper 130.
The clasp 618 is a U-shaped sheet metal, and the clasp 618 is a component that clamps both the outer edges of the cover stopper 130 and the heat receiving body 260 with screws.

<Fixing part 500>
As shown in FIG. 20, each arm 580 of the four arms 580 may be provided with a 90-degree or acute crease, or each arm 580 may be formed of a curved surface.
The arm 580 and the heat dissipation piece 275 may be manufactured from a single sheet metal.
The number of arms 580 is not limited to four. It is desirable that there are three or more, and it may be 5, 6, or 8. However, as the number increases, the weight increases. Since four can maintain strength, four is preferable.

<Connection unit 300>
Although it is desirable that both the ring 340 and the drop stopper 350 are present, only the ring 340 or only the drop stopper 350 may be provided.
The number of drop stoppers 350 is not limited to four. There should be at least one.
The C-shaped wall receiving portion 315 and the C-shaped wall 397 may not be provided as long as the creepage distance can be sufficiently secured.
Increasing the radial thickness of the screw enclosure 324 can increase the creepage distance in the radial direction.
Increasing the thickness of the board portion 391 in the central axis direction can increase the creepage distance in the height direction.
If the arm 580 can be reliably fixed only by the panel portion 391, the standing portion 392 may be omitted.
The four standing plates 381 of the standing portion 392 may be separated from each other in order to improve air permeability. At that time, the pipe hole 393 at the center of the standing portion 392 can be omitted by positioning the wiring tube 410 on the central axis at the end surface on the central axis side in the radial direction of the four standing plates 381.
The wiring tube 410 may not be attached to be movable in both the radial direction and the central axis direction, and may be attached to be movable in either the radial direction or the central axis direction.

Embodiment 3 FIG.
In this embodiment, differences from the first embodiment will be described.

<Lighting equipment 614>
21 and 22 are configuration diagrams of the lighting fixture 614 and the lighting device 1000. FIG.
As shown in FIG. 21, the lighting fixture 614 includes a hanger 612, a socket 613, a cylinder 615, and a shade 616.

<Configuration of Guide Protrusion 710 and Notch 711>
As illustrated in FIG. 23, the connection unit 300 includes a base case 301, a support 310 that fixes the base case 301, and a holder 390 that attaches the support 310 to the fixing unit 500.
The connection part 300 does not have the drop stopper 350 described in the above embodiment, but may have a drop stopper 350.
In addition, the connection part 300 includes a lid part 320 that covers the support 310. The lid 320 has a guide projection 710 on the outer periphery.
Further, the connection part 300 includes a ring 340 that covers the periphery of the lid part 320. The ring 340 has a notch 711 fitted in the guide protrusion 710.

As shown in FIGS. 24A and 24B, the guide protrusion 710 is a straight rail formed on the outer peripheral surface of the small cylinder portion 321 from the ring arrangement surface 326 of the lid portion 320.
Two guide protrusions 710 are provided in the diameter direction of the small tube portion 321.

As shown in FIG. 24C, the ring 340 has a notch 711.
The notch 711 is a recess formed on the inner periphery of the ring 340.
Two notches 711 are provided in the diameter direction of the ring 340.
The length of the guide protrusion 710 is larger than the thickness of the ring 340 and longer than the height of the screw head of the screw 360 fixing the ring 340.

<Operation of Guide Protrusion 710 and Notch 711>
When the ring 340 is attached to the lid part 320, the notch part 711 is fitted into the guide projection 710 so that the ring 340 can be positioned in the rotational direction, and the four screw holes of the ring 340 and the lid part 320 coincide. .
The guide protrusion 710 is used for positioning when the base housing 301 is caulked by a caulking device. Since the guide protrusion 710 extends in the axial direction from the ring 340 in a state where the ring 340 is attached to the lid portion 320, the ring 340 can be positioned in the rotational direction using the guide protrusion 710, and the caulking position and the caulking position can be determined. The position with the pin can be matched.
Thus, the guide protrusion 710 functions as a guide for guiding the ring 340 when the ring 340 is mounted, and functions as a caulking position guide for the caulking device when the base case 301 is caulked.

<The caulking structure of the recessed part 720 and the convex part 730>
As shown in FIGS. 23 and 24, the lid 320 has a recess 720.
The recess 720 is a recess provided at the base of the joint 311 of the support 310.
The recessed portion 720 provides a recessed space that is recessed in the central axis direction from the outer peripheral surface of the joint portion 311 of the support 310.
The depressions 720 are provided at four equal intervals around the rounded portion 311 of the support 310.

In FIG. 25, the symbols have the following meanings.
The positions P1, P2, P3, and P4 are positions where the depressions 720 are formed.
A broken line C is a straight line that passes through the diameter connecting the centers of the bottom walls 721 of the opposing recessed portions 720.
The broken line R is a straight line parallel to the broken line C passing through one end of the bottom wall 721.
The broken line C is a straight line parallel to the broken line C passing through the other end of the bottom wall 721.
The distance between the broken line C and the broken line R is equal to the distance between the broken line C and the broken line L.
A broken line K is a contact line of two molds when the support 310 is manufactured.
The broken line M1 is a straight line connecting the left wall of the recess 720 at the position P1 and the right wall of the recess 720 at the position P4.
The broken line M2 is a straight line connecting the right wall of the depression 720 at the position P2 and the left wall of the depression 720 at the position P3.
The broken line M1 and the broken line M2 are parallel.
The direction of the arrow H <b> 1 is an attachment direction in which the base 305 is screwed into the socket 613. The mounting direction is a rotational direction in which the base 305 is fastened to the socket 613 and the lighting device 1000 is mounted on the lighting fixture 614.
The direction of the arrow H <b> 2 is a removal direction in which the base 305 is removed from the socket 613. The direction of removal is the direction of the rotational direction in which the base 305 is loosened from the socket 613 and the lighting device 1000 is removed from the lighting fixture 614.
The attachment direction (direction of arrow H1) and the removal direction (direction of arrow H2) are opposite directions in the rotation direction.
The angle θ1 is an angle formed by the broken line C and the broken line K, and is 45 degrees in the present embodiment.
The angle α is an angle at which the broken line C (and the broken line R and the broken line L) intersects one of the left and right walls.

As shown in FIG. 25, the recess 720 has a bottom wall 721 and has a left wall 723 and a right wall 722 in the left-right direction in which the base 305 rotates.
The bottom wall 721 is a bottom surface formed at the bottom of the recess 720.
The right wall 722 is a right surface formed on the right of the bottom wall 721.
The left wall 723 is a left surface formed on the left of the bottom wall 721.

As shown in FIG. 25, a plurality of the recessed portions 720 exist at intervals of 90 degrees.
The depression 720 at the position P1 and the position P3 is such that the angle α formed between the diameter direction passing through the center of the bottom wall 721 of the depression 720 and the left wall 723 is the center of the bottom wall 721 of the depression 720 of the right wall 722. It is larger than the angle (0 degree in the figure) formed with the passing diameter direction.
The depression 720 at the position P2 and the position P4 is such that the angle α formed between the diameter direction passing through the center of the bottom wall 721 of the depression 720 and the right wall 722 is the center of the bottom wall 721 of the depression 720 of the left wall 723. It is larger than the angle (0 degree in the figure) formed with the passing diameter direction.
Thus, the hollow part 720 is formed asymmetrically with respect to the diameter direction. That is, the angle formed between the left wall 723 and the right wall 722 of the recess 720 and the diameter direction passing through the center of the bottom wall 721 of the recess 720 is different.
One wall of the recess 720 is a surface parallel to the diametrical direction, and the other surface is a surface that intersects the diametrical direction at an acute angle.
The recess 720 has a removal recess 720 that has a larger angle between the left wall 723 and the right wall 722 in the diameter direction, and a mounting recess that has a greater angle between the right wall 722 and the left wall 723 in the diameter direction. There are two types, 720.

<Angle α>
The support 310 is manufactured using, for example, two molds joined along the broken line K. In this case, the angle α is preferably 45 degrees or 45 degrees or more and 47 degrees or less. If the angle α is less than 45 degrees, the two bonded molds cannot be separated, but if the angle α is 45 degrees or more, the two bonded molds can be easily separated.
FIG. 25 shows a case where the angle α is 45 degrees, and two molds can be peeled along a direction parallel to the straight line M1 and the straight line M2 in FIG.
In order to firmly hook the recess 720 and the projection 730, the angle α is preferably 45 degrees.
When the support 310 is not manufactured using the above two molds, the angle α does not need to be 45 degrees or more, and the angle α is preferably close to 0 degrees.
Note that one wall of the recessed portion 720 may not be a surface parallel to the diametrical direction, but if the surface is parallel to the diametrical direction, the abutting between the recessed portion 720 and the convex portion 730 becomes good.

As shown in FIG. 26, the recess 720 has a lower wall 724 and an upper wall 725 in the axial direction.
The lower wall 724 is a lower surface formed at the lower end of the recess 720.
The upper wall 725 is an upper surface formed at the upper end of the recess 720.
As described above, the recess 720 is a box-shaped recess formed by the bottom wall 721, the right wall 722, the left wall 723, the lower wall 724, and the upper wall 725.
The horizontal cross-sectional shape of the recess 720 is a trapezoidal shape, with one base angle being 90 degrees and the other base angle being 90-α degrees.
The vertical cross-sectional shape of the recess 720 is a U-shape.

<Caulking method>
A method for caulking the base case 301 to the support 310 will be described.
First, the base casing 301 and the support 310 are attached to the caulking device.
As shown in FIGS. 25A and 26A, the caulking device includes a pair of caulking pins 740 that push the base casing 301 from the outer side to the inner side in the diameter direction.
When the support 310 is attached to the caulking device, the support 310 is attached to the caulking device using the guide protrusion 710 described above as a positioning key.
Since the guide protrusion 710 is formed at the same position as the position P1 and the position P3 on the lid 320, if the guide protrusion 710 is mounted at the same position as the caulking pin 740, the position of the caulking pin 740 is the recess 720. Matches the position of.
The caulking pin 740 pushes the base casing 301 along the broken line C toward the central axis O. The base housing 301 is deformed by the pressure of the caulking pin 740, and convex portions 730 are formed at the positions P1 and P3 as shown in FIGS. 25 (b) and 26 (b).
Further, the same operation is performed on the positions P2 and P4 rotated by 90 degrees, and the convex portions 730 are formed at the positions P2 and P4.

<Horizontal sectional shape of convex portion 730>
As shown in FIG. 25 (b), the front end portion of the caulking pin 740 has a symmetrical shape, and the deepest portion of the convex portion 730 is formed on the line of the broken line C.
However, even if the front end portion of the caulking pin 740 has a symmetrical shape, the base wall 301 is recessed asymmetrically because the right wall 722 and the left wall 723 are asymmetric.
At the positions P1 and P3, the right surface of the convex portion 730 is formed in a substantially diametric direction along the right wall 722, and the left surface of the convex portion 730 is formed so as to be inclined along the left wall 723.
On the other hand, at the positions P2 and P4, the left surface of the convex portion 730 is formed in a substantially diametric direction along the left wall 723, and the left surface of the convex portion 730 is formed so as to be inclined along the right wall 722.
The horizontal cross-sectional shape of the convex portion 730 is a round shape or a square shape.

<Vertical sectional shape of convex portion 730>
As shown in FIG. 26 (b), when the tip of the caulking pin 740 presses the lower part of the base case 301, the convex part 730 of the base case 301 approaches the bottom wall 721 as the lower end approaches. Since the upper surface of the convex part 730 hits the upper wall 725 of the recess part 720, the support 310 does not fall down from the base case 301. As the upper surface of the convex portion 730 is made as horizontal as possible, the area where the upper surface of the convex portion 730 hits the upper wall 725 increases, so that falling off can be prevented.
Further, since the lower end surface of the convex portion 730 hits the lower wall 724 of the recess portion 720, the base case 301 does not move downward with respect to the support 310.
The vertical cross-sectional shape of the convex portion 730 is an inclined shape or a curved shape so that the radius decreases from the top to the bottom.

<Operational effects of the recessed portion 720 and the convex portion 730>
Due to the caulking, the cylindrical base casing 301 has a convex portion 730 protruding inward. The recessed portion 720 of the base case 301 accommodates the convex portion 730 of the base case 301.
Since the recessed part 720 at the position P2 and the position P4 has the left wall 723 that is abutted against the convex part 730, when the support 310 rotates in the mounting direction (direction of arrow H1), the support 310 rotates. The force can be reliably transmitted to the base case 301. The depressions 720 at the positions P2 and P4 are the attachment depressions 720.
Since the recess 720 at the position P1 and the position P3 has the right wall 722 that is abutted against the convex portion 730, when the support 310 rotates in the removal direction (the direction of the arrow H2), the rotation of the support 310 The force can be reliably transmitted to the base case 301. The depressions 720 at the positions P1 and P3 are the removal depressions 720.
Therefore, even if the support 310 rotates in either the positive direction that is the mounting direction (the direction of the arrow H1) or the reverse direction that is the removal direction (the direction of the arrow H2), the support 310 and the base case 301 does not slip.
The attachment and detachment of the illumination device 1000 is performed by the operator rotating the light source unit 100 having a diameter that is significantly larger than the diameter of the base 305. For this reason, a large torque is generated in the rotation direction between the support 310 and the base case 301. However, when the support 310 rotates in the mounting direction (the direction of the arrow H1), the left wall 723 at the position P2 and the position P4 forms a surface that intersects at 90 degrees with respect to the mounting direction (the direction of the arrow H1). Therefore, the left wall 723 can reliably press the left surface of the convex portion 730. Further, when the support 310 rotates in the removal direction (the direction of the arrow H2), the right wall 722 at the position P1 and the position P3 forms a surface that intersects at 90 degrees with respect to the removal direction (the direction of the arrow H2). Therefore, the right wall 722 can surely press the right surface of the convex portion 730.
As described above, since the recess 720 has an asymmetric structure, the support 310 and the base case 301 are securely fixed, and the base case 301 does not slide around the metal support 310 and the support It is possible to prevent 310 from slipping inside the base casing 301 and causing the support 310 to idle.
Moreover, since the upper surface of the convex part 730 hits the upper wall 725 of the hollow part 720, the support 310 does not fall down from the base casing 301.
Moreover, since the lower end surface of the convex part 730 hits the lower wall 724 of the hollow part 720, the base housing | casing 301 does not fall.
Since there are two mounting recesses 720 in the 180-degree direction, the mounting rotational force can be reliably transmitted to the base 305.
Since there are two detachment depressions 720 in the 180-degree direction, the rotational force for removal can be reliably transmitted to the base 305.

<Other examples of hollow part 720>
The number of mounting recesses 720 is not limited to two, but may be three or more, or may be one.
The number of dents 720 for removal may not be two, but may be three or more, or one.
The number of attachment recesses 720 and the number of removal recesses 720 need not be the same.
There may be at least one attachment recess 720 and removal recess 720.

<Other examples of caulking structure>
27 and 28 show other examples of caulking structures.
As shown in FIG. 27, the connection portion 300 has a cylindrical base case 301.
Furthermore, the connection unit 300 includes a support 310 that is screwed into the base housing 301, and includes a lid 320 that covers the support 310.

The support 310 has a joint 311 that is screwed into the base housing 301.
The combination unit 311 includes an arrangement unit 762 in which the storage unit 752 is arranged.
The arrangement part 762 is a wide groove formed over the entire upper and lower sides of the joint part 311.
There are two placement portions 762 in the diameter direction.
The interval between the left and right outer walls of the storage portion 752 is the same as the interval between the left and right inner walls of the placement portion 762.
The joint portion 311 has a presser receiving portion 761 in which the presser portion 751 is arranged.

  The base casing 301 is formed with a convex portion 730 that protrudes inward by caulking, and the lid portion 320 has a storage portion 752 that stores the convex portion 730.

The lid part 320 has an arc-shaped presser part 751 that protrudes inside the small cylinder part 321 at the upper end part of the small cylinder part 321.
There are two presser portions 751 in the diameter direction.

The lid part 320 has a chair-shaped storage part 752 that protrudes to the inside of the small cylinder part 321 at the upper end part of the small cylinder part 321.
The lid part 320 forms a recessed part 720 by a bottom wall, a left wall, a right wall, and a lower wall.
The lid 320 has no upper wall.
There are two storage portions 752 in the diameter direction.

The presser receiving portion 761 has a plane formed over the entire vertical direction of the joint portion 311 and an arcuate surface orthogonal to the plane. The shape of the arcuate surface is the same as the arcuate shape protruding inside the presser portion 751.
There are two presser receiving portions 761 in the diameter direction.

The placement unit 762 includes a positioning unit 763 that determines the position of the lid 320 in the rotational direction.
The positioning portion 763 is a linear groove that is recessed from the center of the bottom surface of the placement portion 762 toward the central axis O.
The storage portion 752 has a protrusion 753 fitted to the positioning portion 763.
The protrusion 753 is a protrusion protruding from the center of the inner surface of the storage portion 752 toward the central axis O.

<Material>
The base housing 301 is made of metal having a nickel surface plated with brass.
The support 310 is made of aluminum.
The lid part 320 is made of resin.
If the base casing 301 and the support body 310, both of which are made of different metals, are kept in contact by caulking, the support body 310 may be corroded due to aging. Therefore, instead of caulking the metal with respect to the metal, the metal base casing 301 can be caulked to the resin lid 320. Since the metal base casing 301 and the metal support 310 are not in direct contact with each other, corrosion due to contact of different metals can be prevented.

<Manufacturing method>
The fitting portion 311 of the support 310 is inserted into the lid hole 322 of the lid portion 320 until the presser portion 751 hits the presser receiving portion 761 while fitting the protrusion 753 into the positioning portion 763.
Then, the base part 301 is put on the joint part 311, and the position of the storage part 752 and the position of the caulking pin are matched to be attached to the caulking device.
The convex portion 730 formed by caulking of the base casing 301 is accommodated in the recess portion 720 of the accommodating portion 752.

<Action>
The convex portion 730 is restricted from rotating left and right by the left and right walls of the recess 720 of the storage portion 752, and is restricted from moving downward by the lower wall.
Further, the left and right outer walls of the storage portion 752 are fitted into the left and right inner walls of the placement portion 762, and the support 310 does not rotate to the left and right with respect to the lid portion 320.
Further, since the plane of the presser receiving portion 761 and the straight portion of the presser portion 751 coincide with each other, and the support body 310 and the lid portion 320 are screwed, the support body 310 moves left and right with respect to the lid portion 320. There is no rotational movement.
Although the storage portion 752 does not have an upper wall, the base portion 301 does not move upward with respect to the support 310 because the joint portion 311 is screwed into the base case 301.

<Other material examples>
The material of the support 310 is not limited to aluminum (including an alloy), and may be made of a material other than a resin material.
The material of the support 310 may be copper, stainless steel, iron, tin, titanium, magnesium, other metals, or an alloy containing these metals.
Alternatively, it may be made of ceramic, glass, paper, or wood.
Below, the suitable combination of the material of the support body 310 and the cover part 320 is described.
Material of Support 310 Material of Cover 320 (1) Metal Resin (2) Ceramic Resin (3) Ceramic Metal Since the support 310 is a member at the center of each component of the connection part 300, it is like metal or ceramic. It is desirable to use a material that does not deteriorate than the resin.
If different kinds of metals are in contact with each other for a long period of time, corrosion may occur between the different kinds of metals. Therefore, it is desirable that the material of the support 310 and the lid 320 is not different kinds of metals.
Note that the support 310 and the lid 320 may be manufactured as a single part using a resin material.

<Falling prevention mechanism using the bag nut 771>
As shown in FIG. 29, the light source unit 100 includes a cover 110 and a cover stopper 130, the heat radiating unit 200 includes a heat receiving body 260 to which the light source unit 100 is fixed, and a screw 115 receives the cover stopper 130. It is fixed to the body 260.
29 includes a light source unit 100 and a heat radiating unit 200 in which the light source unit 100 is fixed with screws 115, and a bag nut 771 is attached to the screws 115.
As shown in (a) of FIG. 29, it is preferable to provide an owl nut 771 at the tip of the screw 115 in order to prevent the light source unit 100 from falling.
Furthermore, as shown in FIG. 29 (b), it is preferable that a screw 115 is attached with a nut 772, and an omelet nut 771 is provided at the tip of the screw 115.

<Fall prevention mechanism by arm 580>
FIG. 30A shows a case where the arm 580 and the heat dissipating piece 275 are one component.
The arm 580 integrates the adjacent heat dissipating piece 275 at the end of the connection plate portion 583.
The arm 580 has a basic plate portion 581 disposed between the heat receiving body 260 and the connection portion 300.
The connection plate portion 583 fixed to the connection portion 300 is directed from one end portion of the basic plate portion 581 in the direction of removal (direction of the arrow H2) for removing the base housing 301 from the socket 613.
The heat receiving plate portion 582 fixed to the heat receiving body 260 is directed from the other end portion of the basic plate portion 581 in a removal direction (direction of an arrow H2) for removing the base case 301 from the socket 613.
The reinforcing plate portion 584 existing in the longitudinal direction of the basic plate portion 581 is directed from the side end portion of the basic plate portion 581 in the direction of removal (direction of arrow H2) for removing the base case 301 from the socket 613.

<Operation of arm 580>
The plurality of arms 580 are arranged radially, and the basic plate portion 581 is arranged in the radial direction. When vibration in a direction in which the illumination device 1000 rotates is applied to the illumination device 1000, the plurality of arms 580 are twisted with the base 305 as a base point.
When the arm 580 is twisted in one direction around the central axis O, the arm 580 returns to the other direction due to the rigidity or elasticity of the arm 580. On the contrary, when the arm 580 is twisted in the other direction around the central axis O, the arm 580 returns to the opposite one direction due to the rigidity or elasticity of the arm 580. For this reason, when vibration is applied to the illumination device 1000, the base 305 screwed into the socket 613 may be loosened.

In the arm 580, the heat receiving plate portion 582, the connecting plate portion 583, and the reinforcing plate portion 584 are bent in the direction of removal (the direction of the arrow H2), so that the rigidity or elasticity of the arm 580 is in one direction and the other. It depends on the direction.
The heat receiving plate portion 582, the connecting plate portion 583, and the reinforcing plate portion 584 are bent toward the removal direction (direction of the arrow H2) opposite to the screwing direction of the base 305, so that one of the arms 580 When the torque of the same strength is applied to the direction of the other and the other direction, the rotational force in the mounting direction (direction of arrow H1) is larger than the rotational force in the removal direction (direction of arrow H2). In other words, the heat receiving plate portion 582, the connecting plate portion 583, and the reinforcing plate portion 584 are bent toward the removal direction (the direction of the arrow H2), so that the vibration in the direction in which the lighting device 1000 rotates with respect to the lighting device 1000. Is added to the socket 613 and tightened. When the end portion of the arm 580 is bent toward the removal direction (the direction of the arrow H2) that is opposite to the screwing direction of the base 305, and the lighting device 1000 is vibrated in the rotating direction. It is in a direction to be tightened by screwing.
On the contrary, when the heat receiving plate portion 582, the connecting plate portion 583, and the reinforcing plate portion 584 are bent in the mounting direction (the direction of the arrow H1), the base 305 screwed into the socket 613 is gradually loosened. When the end of the arm 580 is bent toward the mounting direction (the direction of the arrow H1), which is the direction in which the base 305 is screwed, when the illuminating device 1000 is vibrated in the rotating direction, The screwed base 305 gradually loosens.

<Other examples of arm 580>
It is desirable that all of the end portions of the heat receiving plate portion 582, the connecting plate portion 583, the reinforcing plate portion 584, and the arm 580 are bent toward the direction of removal (the direction of the arrow H2), but the heat receiving plate portion 582 and the connecting plate Only the portion 583 may be bent toward the removal direction (the direction of the arrow H2).
When vibration in the direction in which the lighting device 1000 rotates is applied to the lighting device 1000, the base 305 is preferably tightened with respect to the socket 613. However, in order to reduce the tightening strength and prevent over-tightening, the reinforcing plate The size or shape of the portion 584 may be changed to change the rigidity or elasticity of the arm 580. Alternatively, the reinforcing plate portion 584 may not be provided on the arm 580, and among the plurality of arms 580, there may be an arm 580 without the reinforcing plate portion 584.
The arm 580 may be an arm 580 without the heat dissipating piece 275 as shown in FIG. 9, or may be an integrated heat dissipating piece 275 as shown in FIG.

<Product label 780>
As shown in FIG. 30A, a product label 780 is affixed to the arm 580.
The product label 780 is a rectangular seal and displays product information such as a product name, manufacturer, date of manufacture, and rating information.
The product label 780 is preferably attached to the basic plate portion 581 of the arm 580. Since the basic plate portion 581 is a flat surface, the product label 780 is easily pasted and the product label 780 is difficult to peel off.
In order to prevent the product label 780 from being covered with the heat radiating plate 271 and not to disturb the heat radiating effect, the product label 780 is desirably attached to the extension portion 587 of the basic plate portion 581 apart from the heat receiving body 260.
It is desirable that the product label 780 is attached to a flat portion between the two screw holes 590 of the extension portion 587. The plane portion between the two screw holes 590 of the extension portion 587 is not distorted because the opposite side is fixed by the standing portion 392 of the holder 390.

  As shown in (b) of FIG. 30, the product label 780 may be affixed to a planar portion of the standing portion 392 of the holder 390 of the connection portion 300. A space between the two screw holes 398 of the standing portion 392 is a flat surface, is not covered with the heat radiating plate 271, and does not hinder the heat radiation effect.

<Effect>
Since the product label 780 is affixed to the flat surface portion, it is easier to affix the product label 780 than the case where the product label 780 is affixed to the curved surface portion. Since the display of is not distorted, it is easy to visually recognize.

  It should be noted that the product information such as the product name, manufacturer, date of manufacture, and rating information is not shown in the method of applying the product label 780, but between the two screw holes 590 of the extension portion 587 or the two screws of the standing portion 392. You may display by the method of printing or stamping directly between the holes 398.

As described above, in the lighting apparatus 1000 according to the embodiment of the present invention, the arm 580 is a part of the heat radiating unit 200 that is integrally formed with the heat receiving body 260 that receives the operation heat generated from the light source element 140. The connection portion 300 is fastened, and has both sufficient heat dissipation and vibration resistance while being lightweight and simple.
Moreover, since the illuminating device 1000 according to the embodiment of the present invention includes the illuminator 1 in consideration of the outer dimensions and load-bearing performance of a conventionally used luminaire for an HID lamp, the luminaire for the HID lamp is used. And the lighting device 1 can be used in combination. That is, the lighting fixture 1 is suitable for low-cost renewal construction using existing lighting fixtures.

  As mentioned above, although Embodiment 1-3 of this invention was demonstrated, you may implement combining these embodiment. Alternatively, one of these embodiments may be partially implemented. Or you may implement combining these embodiment partially. In addition, this invention is not limited to these embodiment, A various change is possible as needed.

  For example, in the above-described embodiment, the light source unit 100 has been described with respect to an aspect using a packaged surface mount type (SMD type) LED element, but is not limited thereto. The light source unit 100 is a COB (Chip On Board) type light source unit 100 in which a plurality of LED chips are directly mounted on a substrate, and the plurality of LED chips are collectively sealed with a phosphor-containing resin. Also good.

  In the above embodiment, the light source unit 100 is configured to emit white light by the blue LED chip and the yellow phosphor, but is not limited thereto. For example, a phosphor-containing resin containing a red phosphor and a green phosphor may be used and combined with this and a blue LED chip to emit white light. Moreover, you may use the LED chip which light-emits colors other than blue, for example, using the ultraviolet LED chip which emits the ultraviolet light which is shorter wavelength than the blue light which a blue LED chip emits, mainly by ultraviolet light You may comprise so that white light may be discharge | released by the blue fluorescent substance particle which is excited, and discharge | releases blue light, red light, and green light, green fluorescent substance particle, and red fluorescent substance particle.

In the above embodiment, the LED is described as an example of the light emitting element. However, a light emitting element such as a solid state laser, a semiconductor laser, an organic EL (ElectroLuminescence), or an inorganic EL is used. May be.
The number of light emitting elements is not limited to a plurality, and may be one.

  Furthermore, the material of the cover 110 is not limited to resin, and may be a glass material. Further, since at least a part of the cover 110 needs to have a translucent region that can emit light, the material of the region that can emit light can be a translucent resin, and the material of the region that cannot emit light can be a white highly reflective resin Good.

  In the above embodiment, the luminaire 1 does not include a power supply device (lighting device) that generates lighting power for turning on the light source element 140, and is supplied with lighting power from a power supply device installed outside the luminaire 1. Although it is an aspect, not only this but the aspect provided with the power supply device (lighting device) which the lighting fixture 1 produces | generates lighting electric power may be sufficient.

Embodiment 4 FIG.
In this embodiment, differences from the above-described embodiment will be described.
In this embodiment, a lighting device 1000 having a fixture shade 800 will be described.
In this embodiment, the central axis O refers to the central axis of the illumination device 1000.
The term “above” refers to the side on which the mounting portion to which the lighting device 1000 is attached is provided.
Further, “down” refers to the light irradiation direction of the lighting apparatus 1000.
The height means the length in the direction of the central axis O from the bottom to the top.

*** Explanation of configuration ***
31, 32, 33, and 34 are a perspective view, a side view, a bottom view, and a plan view of the lighting device 1000, respectively.
35 and 36 are exploded perspective views of the illumination device 1000, respectively.
37 and 38 are cross-sectional views passing through the central axis of the illumination device 1000.

<Lighting device 1000>
The illumination device 1000 includes a light source unit 100, a heat dissipation unit 200, a fixture shade 800, and a hanging unit 900.
The heat dissipating part 200 has the light source part 100 fixed at one end and the suspension part 900 fixed at the other end.
The heat radiating unit 200 is disposed between the light source unit 100 and the hanging unit 900.
The instrument shade 800 is fixed to the heat dissipating part 200 and covers the heat dissipating part 200.
The instrument shade 800 is fixed only to the heat radiating part 200 and is not in contact with any other part other than the heat radiating part 200.

<Light source unit 100>
The light source unit 100 has a disk shape as a whole.
The light source unit 100 includes a light source substrate 150 on which the light source element 140 is mounted.
The light source unit 100 includes a transparent or translucent cover 110.
The cover 110 covers the entire light source substrate 150.

<Heat dissipation part 200>
The heat radiating unit 200 includes a heat receiving body 260 to which the light source unit 100 is fixed.
The heat dissipating part 200 has a plurality of arms 580 fixed to the heat receiving body 260 and the hanging part 900.
The heat dissipating unit 200 includes a plurality of heat dissipating pieces 270 fixed to the heat receiving body 260.
The plurality of arms 580 and the plurality of heat radiating pieces 270 are a plurality of heat radiating plates arranged radially from the central axis O.
In the present embodiment, four arms 580 are arranged radially from the central axis O at intervals of 90 degrees.
The heat receiving body 260, the arm 580, and the heat radiating piece 270 of the heat radiating portion 200 are made of metal in order to improve heat radiating properties, and preferably made of aluminum.

<Arm 580>
The arm 580 will be described with reference to FIG.
The arms 580 are arranged radially from the central axis O.
The arm 580 is a fin bracket that serves as a heat radiating fin and serves as a bracket that fixes the light source unit 100 and the suspension unit 900.
The arm 580 has a basic plate portion 581 disposed between the heat receiving body 260 and the hanging portion 900.
The arm 580 has a connection plate portion 583 that is orthogonal to the basic plate portion 581 and is fixed to the suspension portion 900.
The connecting plate portion 583 is disposed orthogonal to the central axis O.
The arm 580 includes a heat receiving plate portion 582 that is orthogonal to the basic plate portion 581 and is fixed to the heat receiving body 260.
The heat receiving plate portion 582 is disposed orthogonal to the central axis O.
The arm 580 includes a reinforcing plate portion 584 that is orthogonal to the basic plate portion 581 and reinforces the basic plate portion 581.
The reinforcing plate portion 584 is disposed in parallel with the central axis O.
The arm 580 has a shade mounting portion 591 that is orthogonal to the basic plate portion 581 and fixes the instrument shade 800.
The shade mounting portion 591 is disposed orthogonal to the central axis O.

The basic plate portion 581 is arranged in the radial direction.
The basic plate portion 581 has a vertical side parallel to the central axis, and a bottom side and an upper side orthogonal to the vertical side. The bottom side of the basic plate portion 581 is longer than the top side.
A reinforcing plate portion 584 is formed on the entire vertical side of the basic plate portion 581.
A heat receiving plate portion 582 is formed on the entire bottom side of the basic plate portion 581.
A connection plate portion 583 is formed on the entire upper side of the basic plate portion 581.
The outer side of the basic plate portion 581 is inclined from the bottom side toward the upper side. There is a step in the middle of the outer edge.
A shade mounting portion 591 is formed at the step of the basic plate portion 581.
The heat receiving plate portion 582, the connecting plate portion 583, the reinforcing plate portion 584, and the shade mounting portion 591 are all bent 90 degrees in the same direction with respect to the basic plate portion 581.
The reinforcing plate portion 584 is disposed orthogonal to the radial direction.
When the heat receiving plate portion 582, the connecting plate portion 583, and the shade attaching portion 591 are arranged in parallel and the lighting device 1000 is attached to the ceiling, the heat receiving plate portion 582, the connecting plate portion 583, and the shade attaching portion 591 are in the horizontal direction. Placed in.

  The screw holes in which the arms 580 are formed all have cylindrical screw bosses formed by burring. A screw hole is formed at the center of the screw boss, and the screw hole is threaded.

<Fixing structure of the suspension part 900 and the heat dissipation part 200>
With reference to FIG. 39, a fixing structure between the hanging portion 900 and the heat radiating portion 200 will be described.
The hanging portion 900 has a fixed seat 916 that fixes the heat radiating portion 200.
The fixed seat 916 is a pedestal raised from the back surface of the lid flange 910.
There are four fixed seats 916, which are arranged radially from the central axis O at intervals of 90 degrees.
The thickness of the fixed seat 916 is thicker than the thickness of the board portion 911.
The surface of the fixed seat 916 has substantially the same shape as the connection plate portion 583 of the arm 580.
The fixed seat 916 has a screw hole 919 and a protrusion 983.

The heat dissipating part 200 has a connection plate part 583 corresponding to the fixed seat 916.
The connection plate portion 583 has a screw hole 589 and a protrusion receiving portion 957.
The fixed seat 916 and the connection plate portion 583 have substantially the same shape, and the screw hole 919 and the screw hole 589 communicate with each other.
The protrusion 983 is a convex part, the protrusion receiving part 957 is a concave part, and the protrusion 983 is fitted into the protrusion receiving part 957.
The screw 903 is passed through the screw hole 919 and the screw hole 589, the fixing seat 916 and the connection plate part 583 are screwed, and the heat radiation part 200 and the hanging part 900 are fixed.
The connecting plate portion 583 may have a protrusion 983 and the fixed seat 916 may have a protrusion receiving portion 957.

<Shade mounting part 591>
The shade mounting portion 591 is orthogonal to the basic plate portion 581 forming the arm 580 and is orthogonal to the central axis O.
The shade attaching portion 591 is a flat plate formed by being bent from the basic plate portion 581.
A screw hole 593 is formed at the center of the shade mounting portion 591.
The shade mounting portion 591 is formed on the outer periphery of the basic plate portion 581 between the heat receiving plate portion 582 and the connection plate portion 583.
The shade mounting portion 591 is formed near the connection plate portion 583 between the heat receiving plate portion 582 and the connection plate portion 583.
In the height direction of the arm 580, the ratio of the height T1 from the shade mounting portion 591 to the heat receiving plate portion 582 and the height T2 from the shade mounting portion 591 to the connection plate portion 583 is 3: 1 or about 3: 1. is there.

The shade mounting portion 591 and the connecting plate portion 583 are in a positional relationship between the upper and lower steps of the stairs and provide a step structure.
In the step structure, the cap attaching portion 591 and the connecting plate portion 583 are formed in steps, the hanging portion 900 and the fixture shade 800 are fixed at different heights, and the height between the hanging portion 900 and the fixture shade 800 is high. A structure that forms a heat radiation space having a height T2 in the vertical direction.

  The length of the arm 580 in the radial direction is greater than the length of the shade mounting portion 591 from the shade mounting portion 591 to the connection plate portion 583 than the length from the shade mounting portion 591 to the heat receiving plate portion 582. ing. In other words, at the arrangement position of the shade mounting portion 591, the arm 580 forms a step in which the length in the radial direction of the basic plate portion 581 is changed by the length in the radial direction of the shade mounting portion 591.

<Heat dissipation space>
The height of the heat radiation piece 270 is lower than the height of the shade mounting portion 591. Therefore, a heat radiation space is formed between the heat radiation piece 270 and the upper surface opening 810.
Further, a heat radiation space is formed between the radially outer side of the heat radiation piece 270 and the shade portion 830.
In the side view, only the upper third of the four arm 580 from the shade mounting portion 591 to the connecting plate portion 583 exists between the instrument shade 800 and the suspension portion 900.
A heat radiation space having a height T2 for releasing hot air rising from the heat radiation part 200 is formed between the instrument shade 800 and the hanging part 900.

<Equipment shade 800>
The instrument shade 800 will be described with reference to FIG.
The instrument shade 800 has a cylindrical shape. In this embodiment, the instrument shade 800 has a truncated cone shape.
The instrument shade 800 has openings on the top and bottom surfaces.
The instrument shade 800 has an upper surface opening 810 having an opening at the center in the upper surface portion.
The instrument shade 800 has a bottom opening 820 having an opening in the center at the bottom.
The instrument shade 800 has a shade 830 between the top opening 810 and the bottom opening 820.
The upper surface opening 810 is an annular portion protruding in a bowl shape from the upper end of the shade portion 830 in the central axis direction.
The bottom opening 820 is an annular portion that is bent to the lower end of the cap portion 830 or radially outward.
The instrument shade 800 has a shade fixing portion 840 that is fixed to the shade mounting portion 591.
The cap fixing portions 840 are formed at four locations at 90 ° intervals in the upper surface opening 810.
A specific example of the cap fixing portion 840 is a screw fixing portion formed in the upper surface opening 810, and has a screw hole in the center.

<Fixed structure of instrument cap 800>
As shown in FIG. 40, the instrument shade 800 is attached to the shade mount 591 by fixing the shade fixing portion 840 of the upper surface opening 810 to the shade mount 591 of the arm 580 with a cap screw 801. .
Since the upper surface opening 810 and the shade mounting portion 591 are horizontal planes, the four shade fixing portions 840 are arranged in a state where the lower surface of the upper surface opening 810 of the upper surface fixture shade 800 is in surface contact with the upper surface of the shade mounting portion 591. It can be screwed to the four shade mounting portions 591.
The instrument shade 800 is fixed only to the shade attachment portion 591 of the four arms 580, and is not attached to other components and is not in contact with other components.

<Dimensions>
The dimensional relationship will be described with reference to FIGS. 32, 33, and 34.
The opening diameter W2 of the upper surface opening 810 of the instrument shade 800 is not less than the maximum outer diameter W1 of the hanging portion 900 and is smaller than the maximum outer diameter W3 of the light source unit 100 and the heat dissipation unit 200.
The opening diameter W <b> 2 of the upper surface opening 810 of the instrument shade 800 is not less than the outer diameter of the lid flange 910 and not less than the outer diameter of the mounting flange 930.
In addition, the opening diameter W4 of the bottom opening 820 of the instrument shade 800 is equal to or larger than the maximum outer diameter W1 of the hanging portion 900 and is larger than the maximum outer diameter W3 of the light source unit 100 and the heat dissipation unit 200.
32, FIG. 33, and FIG. 34 show the case of W1 <W2 <W3 <W4.
In the case of W1 <W2, as shown in FIG. 34, since a gap S is formed between the upper surface opening 810 and the hanging portion 900 in plan view, dust may enter from the gap S.
In the case of W1 = W2, the gap S1 is generated in the vertical direction, but no gap S is generated in the radial direction, so that intrusion due to falling of dust can be suppressed.
Since the opening diameter W <b> 2 of the upper surface opening 810 of the instrument shade 800 is smaller than the maximum outer diameter W <b> 3 of the heat dissipation portion 200, the top opening 810 remains in the middle of the heat dissipation portion 200 even when the cap screw 801 that fixes the instrument shade 800 is removed. Therefore, the instrument shade 800 does not fall from the heat radiating portion 200.

<Drop prevention structure of light source unit 100>
41 and 42, the structure for preventing the light source unit 100 from falling will be described.
The illumination device 1000 clips the cover 110 to the heat receiving body 260 with a clip 950, thereby preventing the light source unit 100 from falling.

<Cover 110>
FIG. 41A is an enlarged cross-sectional view of FIG. 38C.
The cover 110 will be described with reference to FIG.
The light source unit 100 includes a cover 110.
The cover 110 is made of a transparent or translucent resin.
The cover 110 has a light transmitting part 980 that covers the light source part 100.
The cover 110 has an edge portion 981 formed around the light transmitting portion 980.
The edge portion 981 is thicker than the light transmitting portion 980.
The cover 110 has a cover hole 984 in which a screw 115 is inserted into the edge 981.
Four cover holes 984 are formed at intervals of 90 degrees.
The cover hole 984 has a screw collar 985 in which a screw 115 is inserted.
The screw collar 985 is a hollow pipe that is more rigid than the cover 110.
The length of the screw collar 985 is the same as the thickness of the edge 981.

<Clip 950>
The clip 950 will be described with reference to FIG.
The clip 950 sandwiches the cover 110 and the heat receiving body 260.
The clip 950 is made of a metal spring material that is more rigid than aluminum.
The clip 950 has a U-shaped or U-shaped cross section in the radial direction.
The clip 950 includes a rectangular back plate 953 and two rectangular pressing plates.
Of the two presser plates, one presser plate 951 is orthogonal to the back plate 953 at one end of the back plate 953. The presser plate 951 has a boss hole 959 at the center.
The heat receiving plate portion 582 has a cylindrical screw boss 992 formed by burring. A screw hole for fixing the screw 115 by threading is formed in the center of the screw boss 992.
The boss hole 959 is larger than the screw hole to insert the screw boss 992 protruding in a convex shape from the upper surface of the heat receiving plate portion 582. The inner diameter of the boss hole 959 is equal to or larger than the outer diameter of the screw boss 992.
The presser plate 951 has a tapered portion 958 at the tip, and the distance between the two presser plates increases as it approaches the tip of the clip 950.
Of the two press plates, the other press plate 952 is orthogonal to the back plate 953 at the other end of the back plate 953. The presser plate 952 has a screw hole at the center.

<Enclosure wall 982>
The surrounding wall 982 will be described with reference to FIG.
The cover 110 has a surrounding wall 982 that surrounds the outer periphery of the clip 950.
Four surrounding walls 982 are formed at intervals of 90 degrees.
The surrounding wall 982 is a standing wall formed on the edge portion 981 of the cover 110 and the side surface 986 of the cover 110 with the cover hole 984 at the center.
The height of the surrounding wall 982 is equal to or greater than the thickness of the press plate of the clip 950.
The surrounding wall 982 clarifies the attachment position of the clip 950 and guides the insertion of the clip 950.
Further, the surrounding wall 982 prevents damage due to the outer peripheral edge of the clip 950.

<Clip 950 mounting position>
As shown in FIG. 42, the clip 950 is attached to the arrangement position of the arm 580.
The heat dissipating part 200 has screw holes that penetrate the heat receiving body 260 and the heat receiving plate part 582 of the arm 580 at intervals of 90 degrees.
The clip 950 sandwiches the edge portion 981 of the cover 110, the heat receiving body 260, and the heat receiving plate portion 582, and is fixed with screws 115.
By fixing the clip 950 not only to the heat receiving body 260 but also to the arm 580, the light source unit 100 can be securely fixed.

<Hanging part 900>
The suspension portion 900 will be described with reference to FIGS. 43, 44, and 45.
The hanging part 900 has an upper end fixed to a mounting part such as a ceiling and suspends the lighting device 1000.
The suspension part 900 has a lower end fixed to the heat dissipation part 200.
The hanging portion 900 has a hollow pipe 920 and two flanges 901.

<Flange 901>
The suspension 900 has flanges 901 attached to both ends of the pipe 920.
Hereinafter, the flange 901 fixed to one end of the pipe 920 and fixing the plurality of arms 580 is referred to as a lid flange 910.
Further, the flange 901 fixed to the other end of the pipe 920 is referred to as a mounting flange 930.
Hereinafter, when it is not necessary to distinguish between the lid flange 910 and the mounting flange 930, they are simply referred to as a flange 901.

The flange 901 is made of metal.
The flange 901 is a cast product.
The flange 901 has a screw hole, but the screw hole of the flange 901 is a cylindrical through hole and is not threaded.

The flange 901 has an opening through which an electric wire passes in the center, and has a cylindrical portion 940 into which the pipe 920 is inserted.
The cylindrical portion 940 wraps 360 degrees around the outer periphery of the end of the pipe 920.
The cylindrical portion 940 has a receiving portion 941 in which the end surface of the pipe 920 is abutted.
The receiving portion 941 is a protrusion that protrudes toward the central axis O, and the inner diameter of the opening inner peripheral surface 947 of the receiving portion 941 is equal to or smaller than the inner diameter of the pipe 920.

<Cover flange 910>
The lid flange 910 has a disk-shaped, dish-shaped, or dome-shaped disk portion 911.
As shown in FIG. 43, the lid flange 910 has a cylindrical portion 940 on the upper surface.
The lid flange 910 has an outer rib 902 formed on the upper surface of the board portion 911 obliquely from the top of the cylindrical portion 940 to the edge of the board portion 911.
The outer rib 902 reinforces the strength of the cylindrical portion 940 where the vibration stress P concentrates when the lighting device 1000 vibrates.

<Mounting flange 930>
The mounting flange 930 has a hat shape.
As shown in FIG. 45, the mounting flange 930 has a side portion 932 and a bottom portion 933.
The lid flange 910 has a cylindrical portion 940 on the lower surface of the bottom portion 933.
The mounting flange 930 has inner ribs 931 formed obliquely from the side surface to the bottom surface inside the side portion 932 and the bottom portion 933.
The inner ribs 931 are arranged radially from the central axis O.
The inner rib 931 reinforces the strength of the base of the cylindrical portion 940 where the vibration stress P concentrates when the lighting device 1000 vibrates.

<Packing 942>
As shown in FIG. 45, the hanging portion 900 has a packing 942 sandwiched between a pipe 920 and a flange 901.
As shown in FIG. 46, the packing 942 has a ring shape as a whole.
The packing 942 is an elastic body, and specifically, rubber or resin is preferable.
The packing 942 has an annular flat plate ring portion 943 and a cylindrical cover portion 944.
The ring portion 943 is sandwiched between the end surface of the pipe 920 and the receiving portion 941.
The cover portion 944 is fitted into the inner periphery of the receiving portion 941 and covers the opening inner peripheral surface 947 of the receiving portion 941.

<Loose assembly mechanism 945>
FIG. 45 is a view showing the assembly mechanism 945.
An assembly mechanism 945 shown in FIG. 45 fastens the pipe 920 loosely to the flange 901.

The cylindrical portion 940 has a through hole 949 formed in the diameter direction.
The pipe 920 also has a through hole 948 formed in the diameter direction.
The diameter of the through hole 948 of the pipe 920 is larger than the diameter of the through hole 949 of the cylindrical portion 940.
A rivet 946 is passed through the through hole 949 and the through hole 948, and the pipe 920 is attached to the cylindrical portion 940.
The pipe 920 is attached to the cylindrical portion 940 only by the rivet 946 and is not attached using a screw or an adhesive or other fixing member.
The diameter of the rivet 946 is the same as the diameter of the through hole 949 formed in the cylindrical portion 940, but is smaller than the diameter of the through hole 948 formed in the pipe 920. For this reason, the pipe 920 is loosely fixed to the cylindrical portion 940 with play.

As shown in FIG. 45, assuming that the diameter of the rivet 946 is Y and the diameter of the through-hole 948 formed in the pipe 920 is X, Y <X, and there is play only for XY.
The packing 942 absorbs this play.
The ring portion 943 of the packing 942 has a thickness greater than or equal to XY in the central axis direction and repels the pipe 920 and the flange 901 even if there is XY play. The 920 and the flange 901 do not rattle.
If a pipe-shaped elastic cylinder is arranged around the rivet 946 and the elastic cylinder is embedded in a gap between the through hole 948 formed in the pipe 920 and the rivet 946, the pipe 920 and the flange 901 are further connected. The rattling can be suppressed.

As shown in FIG. 45, when the rivet 946 is in the center of the through hole 948, it is assumed that a clearance of length L exists between the end surface 921 of the pipe 920 and the receiving portion 941 of the cylindrical portion 940.
When the rivet 946 is at the lower end of the through-hole 948, the clearance between the end surface 921 of the pipe 920 and the receiving portion 941 of the cylindrical portion 940 is the minimum length L− (XY) / 2.
When the rivet 946 is at the upper end of the through-hole 948, the clearance between the end surface 921 of the pipe 920 and the receiving portion 941 of the cylindrical portion 940 becomes the maximum length L + (XY) / 2.
The packing 942 fills the clearance from the minimum length to the maximum length, and the ring portion 943 is an elastic body having a thickness that can be changed at least in the range of the minimum length and the maximum length.
When the thickness of the ring portion 943 in the central axis direction when no pressure is applied is M, the thickness M of the ring portion 943 in the central axis direction when no pressure is applied must be equal to or greater than the maximum length.
In addition, the ring portion 943 must be elastic without being broken even when it reaches the minimum length.

Since there is Y-X play, the position of the pipe 920 can be changed with respect to the flange 901 while the shape of the ring portion 943 of the packing 942 is deformed. The packing 942 disperses the stress P that is biased to the periphery.
Changes in the position of the pipe 920 relative to the flange 901 include the following displacements.
(1) Rotation of the pipe 920 with the central axis (fixed axis) of the rivet 946 as the rotational axis (2) Rotation of the pipe 920 with the central axis O as the rotational axis (3) Up-down direction of the pipe 920 with the central axis O Movement (4) Combination of (1) to (3) above

  The change of the position of the pipe 920 with respect to the flange 901 cannot be uniformly displaced by 360 degrees because the rivet 946 is inserted horizontally in the diameter direction. Specifically, the amount of change in the position of the pipe 920 differs between the horizontal direction in which the central axis (fixed axis) of the rivet 946 exists and the horizontal direction orthogonal to the central axis (fixed axis) of the rivet 946. With one rivet 946, a biased displacement is possible.

For this reason, the rivet 946 of one flange 901 of the flange 901 attached to both ends of the pipe 920 and the rivet 946 of the other flange 901 are attached so as to be orthogonal in a plan view.
By making the two rivets 946 orthogonal, the biased displacement by one rivet 946 can be mitigated by the biased displacement by the other rivet 946.

  Note that the inner diameter of the cylindrical portion 940 of the flange 901 may be larger than the outer diameter of the pipe 920. Since a gap is formed between the outer peripheral surface of the pipe 920 and the inner peripheral surface of the cylindrical portion 940, the pipe 920 can be attached more loosely to the flange 901.

As described above, the assembly mechanism 945 is a structure in which the pipe 920 is loosely attached to the cylindrical portion 940 of the flange 901.
The assembly mechanism 945 attaches the pipe 920 to the cylindrical portion 940 so as to be able to displace the stress P applied to the lighting device 1000.

Conversely, the diameter of the through hole 949 formed in the cylindrical portion 940 may be larger than the diameter of the through hole 948 formed in the pipe 920. The diameter of the rivet 946 is made the same as the diameter of the through hole 948 formed in the pipe 920 and is smaller than the diameter of the through hole 949 formed in the cylindrical portion 940. As described above, the pipe 920 may be attached to the cylindrical portion 940 so as to be displaceable.
Further, the diameter of the rivet 946 is made smaller than both the diameter of the through hole 949 formed in the cylindrical portion 940 and the diameter of the through hole 948 formed in the pipe 920, so that the pipe 920 is made with respect to the cylindrical portion 940. It may be attached to be displaceable.

<Method for Manufacturing Lighting Device 1000>
A schematic manufacturing method of the illumination device 1000 will be described with reference to FIGS.
The outline of the manufacturing method of the illuminating device 1000 is as follows.
The heat radiating unit 200 is manufactured, and the light source unit 100 is fixed to the heat radiating unit 200.
The hanging portion 900 is assembled, and the hanging portion 900 is fixed to the heat radiating portion 200.
The appliance shade 800 is manufactured, and finally, the appliance shade 800 is fixed to the heat dissipating part 200.

<Method for Fixing Heat Dissipation Part 200 and Light Source Part 100>
41 and 42, a method of fixing the heat radiating unit 200 and the light source unit 100 will be described.
It is assumed that the heat dissipation unit 200 has already been completed.
First, the light source substrate 150 is fixed to the heat receiving body 260, and the cover 110 is fitted to the heat receiving body 260 so as to cover the light source substrate 150.
At that time, the cover 110 is aligned with the heat receiving body 260 so that the surrounding wall 982 matches the screw hole with the heat receiving body 260, and the screw holes between the cover 110 and the heat receiving body 260 are made to match.
Next, the screw collar 985 is inserted into the cover hole 984.
Next, the edge portion 981 of the cover 110, the heat receiving body 260, and the heat receiving plate portion 582 are sandwiched between the clips 950. At that time, the taper portion 958 of the pressing plate 951 is hooked on the end portion of the heat receiving plate portion 582 to widen the interval between the two pressing plates, and further, the tip of the pressing plate 951 is placed on the outer periphery of the cover 110 and the clip 950 is placed. Push toward the center axis.
Since the back plate 953 of the clip 950 is guided by the surrounding wall 982, the clip 950 is inserted in the radial direction.
Further, since the presser plate 951 has the tapered portion 958, the screw boss 992 of the heat receiving plate portion 582 can be overcome, and the screw boss 992 of the heat receiving plate portion 582 is fitted into the boss hole 959 of the presser plate 951.
Next, the screw 115 is inserted from the cover 110 toward the heat receiving body 260. The screw 115 passes through the screw hole of the holding plate 952 and the screw collar 985, and the screw hole of the heat receiving body 260 and the screw of the heat receiving plate portion 582. Screwed into the hole.

<Assembly method of hanging part 900>
44 and 45, an assembling method of the hanging portion 900 will be described.
Through holes 948 having a diameter larger than that of the rivet 946 are formed at both ends of the pipe 920.
At this time, the through-hole 948 at one end of the pipe 920 and the through-hole 948 at the other end are formed so as to be orthogonal in a plan view.
A through hole 949 having the same diameter as the rivet 946 is formed in the cylindrical portion 940 of the flange 901.
Next, the packing 942 is inserted into the cylindrical portion 940 of the pipe 920. At that time, the cover portion 944 is first inserted into the cylindrical portion 940 and the outer periphery of the cover portion 944 of the packing 942 is received into the inner peripheral wall of the portion 941. At the same time, the ring portion 943 is placed on the receiving portion 941.
Next, the pipe 920 is inserted into the cylindrical portion 940, and the end surface of the pipe 920 is pressed against the ring portion 943.
Next, with the end surface of the pipe 920 pressed against the ring portion 943, the rivet 946 is passed through the through hole 948 and the through hole 949, and one end of the rivet 946 is caulked to fix the rivet 946 to the pipe 920.
Thus, the flange 901 is attached to the pipe 920 with the packing 942 sandwiched between the pipe 920 and the flange 901. Because of the elasticity of the packing 942 fitted between the pipe 920 and the flange 901, the pipe 920 and the flange 901 do not rattle.
This completes the assembly mechanism in which the pipe 9020 is loosely attached to the flange lid flange 910 so that the pipe 920 can be displaced relative to the flange 901.
These operations are performed on the flange 901 of both the lid flange 910 and the mounting flange 930.
Although it is desirable to provide the assembly mechanism 945 on both flanges 901, when only one of them is provided, it is desirable to provide the assembly mechanism 945 with respect to the mounting flange 930 to which the stress P is strongly applied.

<Fixing method of heat dissipating part 200 and hanging part 900>
39, the fixing method of the heat radiating part 200 and the hanging part 900 will be described.
A fixing seat 916 having a screw hole 919 and a protrusion 983 is formed in the lid flange 910 of the hanging portion 900.
A screw hole 589 and a protrusion receiving portion 957 that receives the protrusion 983 are formed in the connection plate portion 583 of the arm 580 of the heat dissipation portion 200.
At the time of assembly, the entire surface of the connection plate portion 583 of the arm 580 is brought into surface contact with the fixed seat 916 of the lid flange 910, and the protrusion 983 is inserted into the protrusion receiving portion 957.
By fitting the projection screw hole 919 into the projection receiving portion 957, the mounting position of the heat radiating portion 200 is determined, and the screw hole 919 of the fixing seat 916 and the screw hole 589 of the connection plate portion 583 coincide.
Next, the screw 903 is screwed into the screw hole 919 and the screw hole 589 to fix the lid flange 910 of the hanging portion 900 and the arm 580 of the heat radiating portion 200.

<Fixing method of heat radiating part 200 and appliance shade 800>
With reference to FIG. 40, a method of fixing the heat radiating unit 200 and the instrument shade 800 will be described.
The light source unit 100 is fixed to the heat dissipation unit 200 by the method described above.
The suspension part 900 is fixed to the heat dissipation part 200 by the method described above.
Next, the hanging portion 900 is passed from the opening of the bottom opening 820 of the instrument shade 800 toward the opening of the top opening 810.
Since the opening diameter W2 of the upper surface opening 810 and the opening diameter W4 of the bottom surface opening 820 are larger than the diameter W1 of the suspension 900, the instrument shade 800 can pass the suspension 900.
The instrument shade 800 is moved until the upper surface opening 810 contacts the shade mounting portion 591 of the heat radiating portion 200.
Next, the instrument shade 800 is rotated to match the positions of the shade fixing portion 840 and the shade attachment portion 591 of the upper surface opening 810, and the appliance shade 800 is fixed to the shade attachment portion 591 with screws.
This completes the fixing of the instrument shade 800 to the heat radiating portion 200.

<Effect of fixing structure of light source unit 100 and heat radiating unit 200>
<Fall prevention>
If the heat receiving body 260 is made of aluminum, a so-called “screw fool” in which the screw hole of the heat receiving body 260 is cut or damaged is likely to occur, and the screw 115 may fall. Even if the screw 115 is removed, the clip 950 sandwiches the heat radiating unit 200 and the light source unit 100, so that the light source unit 100 can be prevented from dropping from the heat radiating unit 200.

<Creasing measures>
Since the fastening force of the screw 115 can be dispersed by the clip 950 and cracking of the cover 110 can be suppressed, the clip 950 has an effect of a countermeasure against crazing on the cover 110.
Further, since the screw collar 985 is provided and the fastening force of the screw 115 is applied to the screw collar 985, cracking of the cover 110 can be suppressed.
When the fastening force of the screw 115 can be sufficiently dispersed by the clip 950, the screw collar 985 is not necessary.

<Screw prevention>
Since the torque of the screw 115 can be received by the clip 950 when the screw 115 is tightened, the stress concentration on the cover 110 can be reduced. Occurrence of “screw fool” in the screw hole of the heat receiving body 260 can be suppressed.

  It should be noted that if the holding plate 951 of the clip 950 made of a metal spring material that is more rigid than aluminum is subjected to burring and threading, and the screw 115 is fixed to the holding plate 951, the heat received Compared to the body 260, “screw fool” is less likely to occur. Further, it is not necessary to perform burring processing on the heat receiving body 260 and it is not necessary to perform threading processing on the screw holes of the heat receiving body 260.

<Effect of fixing structure of heat dissipating part 200 and hanging part 900>
<Measures against vibration>
As shown by the arrow in FIG. 43, when the illumination device 1000 vibrates, the vibration stress P concentrates on the root of the cylindrical portion 940 of the mounting flange 930. Further, stress P is also applied to the root of the cylindrical portion 940 of the lid flange 910.
With the packing 942 of the assembly mechanism 945, the vibration stress P received by the lighting device 1000 can be reduced, and damage to the cylindrical portion 940 can be reduced.
Further, since the assembly mechanism 945 provides clearance between the pipe 920 and the flange 901, and the pipe 920 is loosely and loosely attached to the flange 901, the stress P applied to the coupling point between the flange 901 and the pipe 920 is applied. Can be relaxed.
Further, since the clearance gap between the pipe 920 and the flange 901 is filled with the packing 942, wobbling when the pipe 920 is held can be suppressed by the repulsive force of the packing 942. In addition, the stress P can be dispersed when subjected to vibration due to the elastic deformation of the packing 942, and a seismic isolation effect can be obtained.
In addition, since the fixed axis of the rivet 946 to which the pipe 920 is fixed is shifted by 90 degrees, a seismic isolation effect can be obtained for forces from not only one direction but also from multiple directions.
Moreover, since the mounting flange 930 has the inner rib 931 and the lid flange 910 has the outer rib 902, the strength of the base of the cylindrical portion 940 and the cylindrical portion 940 can be increased.

<Effect of fixing structure of heat radiating portion 200 and instrument shade 800>
<Heat dissipation>
Due to the stepped structure of the arm 580, a large opening can be formed in the upper part of the instrument shade 800. Even if the heat dissipation portion 200 is covered with the instrument shade 800, the air permeability is good and the heat dissipation is good.
Due to the step structure of the arm 580, a heat radiation space is formed between the instrument shade 800 and the hanging portion 900. Therefore, even if the radiation shade 200 is covered by the instrument shade 800, the air permeability is good and the heat radiation is good. .

<Preventing deterioration of heat dissipation effect>
Since the heat dissipation part 200 is covered with the instrument shade 800, the volume of dust to the heat dissipation part 200 can be suppressed, and the heat dissipation effect of the heat dissipation part 200 can be maintained.

<Improvement of assembly>
Since the opening diameter of the upper surface opening 810 is larger than the maximum diameter of the hanging part 900, the instrument shade 800 can be attached and detached without removing the hanging part 900 from the heat radiating part 200.
For this reason, the fixture shade 800 which has the largest volume in the illuminating device 1000 can be attached at the end of the assembly, the assemblability is improved, and the occurrence rate of scratches generated during the assembly can be reduced.

<Improved design>
Since the heat sink 200 is covered with the instrument shade 800, the heat sink 200 is not exposed and the design is improved.

<Easy replacement>
Since the fixture shade 800 can be attached and detached without removing the hanging portion 900 from the heat radiating portion 200, the fixture shade 800 of the lighting device 1000 can be attached to the fixture shade 800 having a different shape or a different shade according to the customer's request. Easy to change to. The fixture shade 800 can be changed even at the installation site of the lighting device 1000.

<Independence>
Since the instrument shade 800 is fixed only to the heat radiating section 200 and the hanging section 900 is secured only to the heat radiating section 200, the instrument shade 800 and the hanging section 900 are independent parts that are not related to each other. The degree of freedom in designing, manufacturing and changing with 900 increases.

*** Other examples of Embodiment 4 ***
<< Other Examples of Cover 110 and Clip 950 >>
47 and 41B, another example of the cover 110 and the clip 950 will be described.
The cover 110 has a recess 987 for positioning the clip 950.
The recess 987 is a recess provided in the edge 981.
The recesses 987 are formed at two locations on the inner side in the surrounding wall 982 on the inner side in the radial direction from the cover hole 984.

The clip 950 has a peak portion 993 on the presser plate 952.
The peak portions 993 are convex portions formed at two corners of the presser plate 952.
The peak portion 993 is formed at a position corresponding to the recess 987 when the clip 950 is fitted.
The recess 987 and the peak portion 993 provide a hooking mechanism for hooking the clip 950 to the cover 110.
When the clip 950 is fitted, the recess 987 is fitted to the peak portion 993, whereby the position of the clip 950 is determined.
Moreover, even if the screw 115 is removed by the hooking mechanism, the clip 950 is difficult to come off from the cover 110, and the hooking mechanism prevents the cover 110 from dropping.

One presser plate 952 of the two presser plates has a screw hole 956 into which the screw 115 is inserted, and the other presser plate 951 has a U-shaped cut portion 955 through which the screw 115 passes.
47 and 41 (b), the clip 950 sandwiches the cover 110 and the heat receiving body 260 and does not sandwich the arm 580. The heat receiving body 260 has a cylindrical screw boss 992 formed by burring. In the center of the screw boss 992, a screw hole is formed in which threading is performed to fix the screw 115.
The cut portion 955 has a U shape with a tip opened in a U shape in order to insert the screw boss 992 protruding in a convex shape from the upper surface of the heat receiving body 260. The U-shaped cut width is equal to or larger than the outer diameter of the screw boss 992.

Further, the length of one presser plate 952 in the radial direction of the two presser plates is longer than the length of the other presser plate 951 in the radial direction.
The longer presser plate 952 is hooked on the cover 110 first to widen the distance between the two presser plates, and then the shorter presser plate 951 is hooked on the heat receiving body 260 and the clip 950 is pushed in the radial direction. A clip 950 can be attached.
The clip 950 can be attached more easily than when the two presser plates have the same length.
In addition, since the peak portion 993 is provided at the tip of the longer presser plate 952, the clip 950 can be easily positioned.
In addition, since the guide surrounding wall 982 is provided on the outer periphery of the longer presser plate 952, the clip 950 can be easily slid.
Further, since the shorter presser plate 951 has the cut portion 955, the cut length in the radial direction can be small.
Note that the cover 110 may have a peak portion 993 and the clip 950 may have a depression 987.

<< Another Example of Fixing Structure of Heat Dissipating Part 200 and Hanging Part 900 >>
With reference to FIG. 48, another example of the fixing structure of the heat dissipating part 200 and the hanging part 900 will be described.
FIG. 48 illustrates an example in which the heat radiating unit 200 fixes the hanging portion 900 from two orthogonal directions.
Here, an example will be described in which the arm 580 fixes the lid flange 910 of the hanging portion 900 from at least two directions.

<Example of fixing in two directions Part 1>
The lid flange 910 has a board part 911 fixed to the connection plate part 583.
The board part 911 has screw holes 919 at intervals of 90 degrees.
The lid flange 910 has an inner cylinder part 913 at the center of the lower surface of the board part 911.
The inner cylinder portion 913 is a cylinder formed around the central axis O.
The cylinder wall of the inner cylinder part 913 is parallel to the central axis O and is orthogonal to the back surface of the board part 911.
The lid flange 910 has a plurality of standing wall portions 915 orthogonal to the board portion 911 on the lower surface of the board portion 911.
There are four standing wall portions 915, which are arranged radially from the central axis O at a 90-degree interval from the inner cylinder portion 913.
The upright wall portion 915 has a horizontal hole 912 formed in the horizontal direction.
The horizontal hole 912 is not circular but is a vertically long or bell-shaped hole.
The screw hole 919 and the lateral hole 912 are orthogonal to each other.
Since the lid flange 910 is a cast product, the lateral hole 912 is formed by a vertical hole 996 placed from the board portion 911 toward the standing wall portion 915.
The standing wall 915 has a U-shaped raised wall 997 around the lateral hole 912.
The U-shaped raised wall 997 is a raised erected perpendicularly from the standing wall portion 915.
The U-shaped raised wall 997 is a portion that is tightened in contact with the screw head, and is a wall that reinforces the standing wall portion 915.

The arm 580 has a plate hole 594 in the basic plate portion 581 and a screw hole 589 in the connection plate portion 583.
The plate hole 594 and the screw hole 589 are orthogonal to each other.

<Method for Fixing Hanging Part 900 and Heat Dissipation Part 200>
First, the connecting plate portion 583 at the tip of the arm 580 is pressed against the lid flange 910.
Further, the reinforcing plate portion 584 of the arm 580 is pressed against the outer periphery of the inner cylinder portion 913.
This completes the positioning of the arm 580 in the horizontal two-dimensional direction.
Next, the screw 903 is passed through the screw hole 919 of the lid flange 910 and screwed into the screw hole 589 to fix the lid flange 910 to the connection plate portion 583.
Further, a screw (not shown) is passed through the horizontal hole 912 of the standing wall portion 915 and fixed to the plate hole 594 to fix the standing wall portion 915 to the basic plate portion 581.
Since the horizontal hole 912 is a vertically long or bell-shaped hole, it is easy to fit the screw into the plate hole 594 when a screw (not shown) is passed through the horizontal hole 912.
Even if the plate holes 594 of the four arms 580 are misaligned, the vertical or bell-shaped horizontal holes 912 absorb the height misalignment of the plate holes 594 of the four arms 580. can do.
Thus, the suspension portion 900 is fixed from two directions in which the arms 580 of the heat radiation portion 200 are orthogonal.

<Effect of fixing structure of hanging portion 900 and heat radiating portion 200>
Since the hanging part 900 and the heat radiating part 200 are fixed from two orthogonal directions, the hanging part 900 and the heat radiating part 200 can be reliably fixed.

<Two-direction fixed example 2>
As shown in FIG. 48, a screw hole 919 is formed in the board portion 911, a screw hole 589 is formed in the connection plate portion 583, the board portion 911 and the connection plate portion 583 are screwed, and the inner cylinder portion 913 is screwed. A hole 994 may be formed, a screw hole 995 may be formed in the reinforcing plate portion 584, and the inner cylinder portion 913 and the reinforcing plate portion 584 may be screwed together.
Since the screw 903 that fixes the panel portion 911 and the connection plate portion 583 is parallel to the central axis O, and the screw that fixes the inner cylinder portion 913 and the reinforcing plate portion 584 is orthogonal to the central axis O. The heat radiating part 200 fixes the hanging part 900 from two orthogonal directions.
Thus, the board part 911 may be fixed to the connection plate part 583, and the inner cylinder part 913 orthogonal to the board part 911 may be fixed to the reinforcing plate part 584.

<Example of fixing in two directions # 3>
As shown in FIG. 48, a horizontal hole 912 is formed in the standing wall portion 915, a plate hole 594 is formed in the basic plate portion 581, the standing wall portion 915 and the basic plate portion 581 are screwed, and a screw is attached to the inner cylinder portion 913. A hole 994 may be formed, a screw hole 995 may be formed in the reinforcing plate portion 584, and the inner cylinder portion 913 and the reinforcing plate portion 584 may be screwed together.
The screws that fix the standing wall portion 915 and the basic plate portion 581 are orthogonal to the radial direction, and the screws that fix the inner cylinder portion 913 and the reinforcing plate portion 584 are along the radial direction. However, the suspension part 900 is fixed from two orthogonal directions.
As described above, the standing wall portion 915 may be fixed to the basic plate portion 581, and the inner cylinder portion 913 orthogonal to the panel portion 911 may be fixed to 814.

<Example of fixing in three directions>
As shown in FIG. 48, screw holes 919 are formed in the panel portion 911, screw holes 589 are formed in the connection plate portion 583, and the panel portion 911 and the connection plate portion 583 are screwed together.
A horizontal hole 912 is formed in the standing wall portion 915, a plate hole 594 is formed in the basic plate portion 581, and the standing wall portion 915 and the basic plate portion 581 are screwed together.
A screw hole 994 is formed in the inner tube portion 913, a screw hole 995 is formed in the reinforcing plate portion 584, and the inner tube portion 913 and the reinforcing plate portion 584 are screwed.
That is, the heat radiating part 200 may fix the hanging part 900 from three orthogonal directions.

<< Another Example of Fixing Structure of Heat Dissipating Part 200 and Hanging Part 900 >>
With reference to FIG. 49, another example of the fixing structure of the heat dissipating part 200 and the hanging part 900 will be described.

The hanging portion 900 has an insertion portion 917 into which the connection plate portion 583 of the arm 580 is inserted.
The insertion portion 917 is a horizontal piece formed with a step from the lid flange 910.
The insertion portion 917 has an L-shaped cross section in the radial direction.
The insertion portion 917 has a screw hole 919 and a claw portion 918.
The claw portion 918 has a fishhook shape or an arrowhead shape, and a hooked portion projects toward the horizontal piece.
The claw portion 918 hooks the connection plate portion 583 of the arm 580 to temporarily fix the arm 580.

The arm 580 has a connection plate portion 583.
The connection plate portion 583 has a screw hole 589 and a claw receiving portion 991.

The insertion portion 917 supports the connection plate portion 583,
The claw portion 918 hooks the claw receiving portion 991.
Note that the connecting plate portion 583 may have a claw portion 918 and the insertion portion 917 may have a claw receiving portion 991.

<The fixing method of the thermal radiation part 200 and the suspension part 900>

An insertion portion 917 having a screw hole 919 and a claw portion 918 is formed in the plate portion 911 of the lid flange 910 of the hanging portion 900.
A screw hole 589 and a claw receiving part 991 for receiving the claw part 918 are formed in the connection plate part 583 of the arm 580 of the heat radiation part 200.
At the time of assembly, the connection plate portion 583 at the tip of the arm 580 is pressed against the lid flange 910.
Next, the suspension portion 900 is rotated about the central axis O, and the connection plate portion 583 is inserted into the insertion portion 917 so that the lower surface of the connection plate portion 583 contacts the upper surface of the insertion portion 917.
Then, the arm 580 is temporarily held on the lid flange 910 by hooking the claw portion 918 formed in the insertion portion 917 to the claw receiving portion 991 of the connection plate portion 583.
Since the insertion portion 917 supports the connection plate portion 583 and the claw portion 918 is fitted into the claw receiving portion 991 and temporarily fixed, the heat radiating portion 200 does not come off from the hanging portion 900.
Then, the screw 903 is passed through the screw hole 919 of the lid flange 910 and screwed into the screw hole 589 to fix the lid flange 910 of the hanging portion 900 to the arm 580 of the fixing portion 500.

<Effect of fixing structure of hanging portion 900 and heat radiating portion 200>
When fixing the heat radiating part 200 to the hanging part 900, the heat radiating part 200 is hooked by the claw part 918 and temporarily held, so that the fixing work between the hanging part 900 and the heat radiating part 200 is facilitated.
Moreover, since the heat radiating part 200 is hooked on the hanging part 900 by the claw part 918 and fixed with the screw 903, the heat radiating part 200 does not fall even if the screw 903 is detached.

<< Another Example of Fixing Structure of Heat Dissipation Unit 200 and Appliance Shade 800 >>
As shown in FIG. 50, the upper surface opening 810 having a tongue-shaped shade fixing portion 840 continuous from the shade portion 830 may be formed without providing the bowl shape upper surface opening portion 810 in the instrument shade 800. Since there is no bowl-shaped upper surface opening 810, the opening area on the upper side of the instrument shade 800 is widened, and the heat dissipation effect is improved.
Since the opening diameter W5 at the upper part of the bottom opening 820 is smaller than the maximum diameter W3 of the heat radiating part 200, the instrument shade 800 does not fall from the heat radiating part 200 even without the top opening 810.

As shown in FIG. 51, the shade mounting portion 591 of the arm 580 is not formed horizontally at the level difference of the basic plate portion 581 but is formed obliquely at the tip of the extension portion 595 extending from the basic plate portion 581.
Further, without forming the bowl-shaped upper surface opening 810 in the instrument cap 800, the cap 830 and the upper end are used as the upper surface opening 810, and the cap fixing portion 840 is formed at the upper end of the cap 830.
The inclination angle of the shade mounting portion 591 of the arm 580 is the same as the inclination angle of the shade portion 830.
The extension length of the extension portion 595 of the arm 580 is the same length as the distance of the heat dissipation space between the heat dissipation portion 200 and the instrument shade 800.
Since there is no upper surface opening 810, the opening area on the upper side of the instrument shade 800 is widened, and the heat dissipation effect is improved.
Since the opening diameter W5 at the upper part of the bottom opening 820 is smaller than the maximum diameter W3 of the heat radiating part 200, the instrument shade 800 does not fall from the heat radiating part 200 even without the top opening 810.

<< Other examples of the hanging part 900 >>
As shown in FIG. 52, if the thickness of the bottom portion 933 of the mounting flange 930 on which the cylindrical portion 940 is formed is thicker than the thickness of the side portion 932, the strength of the base of the cylindrical portion 940 can be increased.
Further, if the radius R of the curved surface from the bottom 933 of the mounting flange 930 to the outer peripheral surface of the cylindrical portion 940 is increased, the fundamental strength of the cylindrical portion 940 can be increased.
Further, if the thickness of the root of the cylindrical portion 940 is made thicker than the thickness of the tip of the cylindrical portion 940, the strength of the root of the cylindrical portion 940 can be increased.

<< Other Examples of Lighting Device 1000 >>
The external shape of the illumination device 1000 in plan view may not be a circle, but may be a rectangle, a hexagon, another polygon, or another shape such as an ellipse.
The shape of the instrument shade 800 may be a quadrangular frustum, a hexagonal frustum, other polygonal frustums, or may have a wave shape, a net shape, an uneven shape, a constriction shape, or the like.

  100 Light source part, 110 Cover, 111 Edge part, 112 Bending part, 113 Packing, 115 Screw, 119 Lower end face, 120 Reflecting plate, 121 Reflecting surface, 122 Annular groove, 123 Notch, 124 Substrate holder, 125 Screw hole, 126 Protrusion, 129 Opening, 130 Cover stop, 133 Screw hole, 134 Convex part, 135 End part, 140 Light source element, 150 Light source board, 151 Short side, 152 Long side, 153 Arc side, 154 Mark, 155 Tooth receiving, 156 Fit Insertion hole, 157 terminal, 160 Stabilizer, 161 Screw hole, 162 Tube stopper, 163 Thick tube, 164 Annular surface, 165 Narrow tube, 166 Wiring groove, 167 Wiring groove, 168 Teeth, 169 Mark, 170 Fit Part, 171 holding surface, 172 wiring hole, 173 wide part, 180 insulating sheet, 181 Wiring hole, 182 screw hole, 190 countersunk screw, 200 heat radiating part, 260 heat receiving body, 261 screw hole, 262 caulking part, 263 screw hole, 264 wiring hole, 265 screw hole, 270 heat radiating piece, 271 heat radiating plate, 272 fixing plate 273 Caulking portion, 275 heat radiating piece, 276 heat radiating plate, 277 fixing plate, 278 screw hole, 300 connecting portion, 305 base, 301 base case, 302 eyelet, 310 support body, 311 joint portion, 312 support tube portion, 313 Supporting collar part, 314 U-shaped receiving part, 315 C-shaped wall receiving part, 316 Caulking part, 320 Lid part, 321 Small cylinder part, 322 Lid hole, 323 Large cylinder part, 324 Screw enclosure, 325 Screw hole, 326 Ring arrangement Surface, 340 ring, 341 screw hole, 350 drop stopper, 351 passage hole, 352 upper hook, 353 lower hook 360 screw, 381 standing plate, 390 holder, 391 board, 392 standing portion, 393 pipe hole, 394 large opening, 395 small opening, 396 U-shaped notch, 397 C-shaped wall, 398 screw hole, 399 screw, 400 wiring Part, 410 wiring tube, 430 wiring material, 461 insertion hole, 462 insertion hole, 500 fixing part, 580 arm, 581 basic plate part, 582 heat receiving plate part, 583 connection plate part, 584 reinforcing plate part, 585 hole, 586 heat dissipation Part, 587 extension part, 588 screw hole, 589 screw hole, 590 screw hole, 591 cap mounting part, 592 tongue part, 593 screw hole, 594 plate hole, 595 extension part, 600 fall prevention mechanism, 619 through hole, 621 wire , 618 Clasp, 610 Ceiling, 611 Hardware, 612 Hanging, 613 Socket, 614 Lighting fixture, 61 Cylinder, 616 cap, 710 guide projection, 711 notch, 720 recess, 721 bottom wall, 722 right wall, 723 left wall, 724 lower wall, 725 upper wall, 730 convex part, 740 caulking pin, 751 presser 752 Storing part, 753 Protrusion, 761 Presser receiving part, 762 Positioning part, 763 Positioning part, 771 Peel nut, 772 Nut, 780 Product label, 800 Instrument shade, 801 Cage screw, 810 Top opening, 820 Bottom opening, 830 Shade part, 840 Shade fixing part, 900 suspension part, 901 flange, 902 outer rib, 903 screw, 910 lid flange, 911 board part, 912 side hole, 913 inner cylinder part, 915 standing wall part, 916 fixing seat, 917 plug Part, 918 claw part, 919 screw hole, 920 pipe, 921 end face, 930 Flange, 931 inner rib, 932 side, 933 bottom, 940 cylindrical part, 941 receiving part, 942 packing, 943 ring part, 944 covering part, 945 assembly mechanism, 946 rivet, 947 opening inner peripheral surface, 948 through hole, 949 Through hole, 950 Clip, 951 Press plate, 952 Press plate, 953 Back plate, 955 Cut part, 956 Screw hole, 957 Projection receiving part, 958 Tapered part, 959 Boss hole, 980 Translucent part, 981 Edge, 982 Enclosure Wall, 983 Protrusion, 984 Cover hole, 985 Screw collar, 986 Side surface, 987 depression, 991 Claw receiving part, 992 Screw boss, 993 Mountain part, 994 Screw hole, 995 Screw hole, 996 Vertical hole, 1000 Lighting device.

Claims (9)

A light source unit;
A heat dissipating part to which the light source part is fixed,
The light source unit has a cover,
The heat dissipating part has a heat receiving body to which the light source part is fixed,
A lighting device comprising a clip sandwiching the cover and the heat receiving body.   The lighting device according to claim 1, wherein the cover and the clip have a hooking mechanism.   The lighting device according to claim 2, wherein the hooking mechanism is a mechanism for fitting the ridge and the depression.   The lighting device according to any one of claims 1 to 3, wherein the cover includes a light-transmitting portion that covers the light source portion, and an edge that is formed around the light-transmitting portion and is thicker than the thickness of the light-transmitting portion.   The lighting device according to claim 1, wherein the cover has a surrounding wall surrounding an outer periphery of the clip.   The lighting device according to claim 1, wherein the cover has a cover hole through which a screw is passed, and has a screw collar in which a screw is inserted into the cover hole. The clip has a back plate and two press plates orthogonal to the back plate,
The one presser plate of the two presser plates has a screw hole into which a screw is inserted, and the other presser plate has a cut portion through which the screw is passed. Lighting equipment. The clip has a back plate and two press plates orthogonal to the back plate,
The lighting device according to any one of claims 1 to 6, wherein one of the two pressing plates is longer than the other pressing plate. In the manufacturing method of the illuminating device which has a heat receiving body which has a cover in a light source part and fixed the light source part in a heat dissipation part,
A method for manufacturing a lighting device, wherein when the cover is fixed to the heat receiving body, the cover and the heat receiving body are sandwiched between clips, and the clip is screwed.

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