JP6010904B2 - Lighting device - Google Patents

Description

  The present invention relates to a lighting device having waterproof performance.

  2. Description of the Related Art Conventionally, there is known a lighting device in which a light source unit including a light source that emits light, such as an LED (Light Emitting Diode), is housed in a cylindrical glove with both ends open, and both end portions of the glove are closed with a closing member. (For example, refer to Patent Document 1).

JP 2010-198828 A

By the way, in recent years, in order to realize energy saving and longer life of the lighting device in the common ditch, crossing underpass, culvert, dam inspection road, tunnel evacuation resistance, etc., the use of the lighting device as LED has been studied. However, common grooves, crossing underground passages, culverts, dam inspection roads, tunnel evacuation pits, etc. may be submerged in rainy weather, etc., and there is a concern that the lighting device may be submerged and break down during submergence.
An object of the present invention is to provide a lighting device that solves the problems of the conventional techniques described above and has improved waterproof performance.

In order to achieve the above object, according to the present invention, a light source unit is housed in a cylindrical glove having both ends open, and each end of the glove is inserted into a bottomed annular closure member having a bottom part and an annular part. In the closed lighting device, a waterproof packing is provided between the end of the globe and the closing member, and the waterproof packing is sandwiched between the open end surface of the globe and the bottom of the closing member and is pressed and deformed. comprising a first seal portion for sealing with, and a second seal portion for pinched seal between the annular portion of the cylindrical outer surface and the closure member of the glove ends together, the second A taper surface that opens outward with respect to the outer surface of the globe is provided on each of the seal portion and the surface of the closing member that sandwiches the second seal portion, and the opening angle of the taper surface of the second seal portion is set to The taper surface of the closing member Characterized by being larger than the angle can.

  Further, the present invention is characterized in that, in the above-described lighting device, the second seal portion is extended to the outside of the closing member so as to be visible.

The present invention, in the illumination device, wherein the closing member, the light source unit are screwed are brought into close contact from the outside, is provided with a groove which surrounds the screwing portion, the groove is O Marete come fitted ring, together are pressed by a plate from the outside, characterized in that the said groove communicating portion communicating is provided outside.

Further, the present invention provides the illumination device, wherein the light source unit is an LED unit using an LED as a light source, and the LED unit includes an LED module in which the LED is mounted on an LED substrate, and the LED module is attached. a support for the thermal conductivity of the LED of heat to the closure member, and a power supply of the LED, the thermal resistance to the extent that prevents the heat transfer to the support from the power supply module is the power supply by a large fitting It is attached to the said support body, It is characterized by the above-mentioned.

In the illumination device according to the present invention, the power supply module includes a substrate holder formed of a high thermal conductivity material, and a power supply substrate that is thermally connected to the substrate holder and is held. and a part of is supported in contact with said support.

  According to the present invention, in a lighting device in which a light source unit is housed in a cylindrical glove having both ends open, and both end edges of the glove are inserted into a closing member and closed, the edge of the globe and the closing member The waterproof packing includes a first seal portion that is pressed and deformed by an edge of the globe and seals between the closing member, and an outer surface of the end portion and the closing member. Since the second seal part is sandwiched between and sealed together, the gap between the edge and outer surface of the glove and the closing member can be sealed. However, since it can be waterproofed at the edge, it improves the sealing performance between the globe and the closing member, prevents water from entering the lighting device between the globe and the closing member, and the waterproof performance of the lighting device Improve Rukoto can.

It is a perspective view which shows the structure of the illuminating device which concerns on 1st Embodiment of this invention. It is (A) sectional drawing of a illuminating device, and (B) the elements on larger scale around a waterproof packing. It is a disassembled perspective view of an illuminating device. It is the perspective view seen from the (A) outer side of the closure member, and (B) the perspective view seen from the inner side. It is the top view of a waterproof packing, a front view, and sectional drawing. It is a fragmentary sectional view which shows the relationship between a closure member and waterproof packing. It is a perspective view which shows the structure of the illuminating device which concerns on 2nd Embodiment of this invention. It is a top view of an illuminating device. It is a disassembled perspective view of an illuminating device. It is a perspective view of an LED unit. It is a disassembled perspective view of an LED unit.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<First Embodiment>
FIG. 1 is a perspective view of a lighting device 1 according to an embodiment to which the present invention is applied, and FIG. 2A is a cross-sectional view of the lighting device 1. The illuminating device 1 is used as an illuminating device in joint grooves, crossing underground passages, culverts, dam inspection roads, tunnel evacuation resistances, and the like.
As shown in FIG. 1 and FIG. 2A, the lighting device 1 includes a cylindrical globe 11, and a light source unit 20 is housed in the globe 11. The light source unit 20 is a unit including a light source that receives energy and emits light, and a light bulb, a fluorescent lamp, an arc lamp, an HID lamp, a light emitting diode, or the like can be used as the light source. In the present embodiment, the case where the light source unit 20 is an LED unit that uses an energy-saving and long-life LED as a light source will be described as an example.
The globe 11 is formed in a substantially circular cross section using a permeable material, for example, a resin material. Both ends 12 of the globe 11 are open, and each end edge 13 of each end 12 is inserted into a closing member 30 and closed. The closing member 30 can be formed by die casting using, for example, an aluminum alloy. A waterproof packing 50 is provided between the edge 13 of the globe 11 and the closing member 30.

  The waterproof packing 50 includes a first seal portion 51 that is pressed and deformed by the end edges 13 of the both end portions 12 of the globe 11 and is sealed between the closing member 30 and the outer surface 14 of the end portion 12 and the closing member 30. And a second seal portion 52 that is sandwiched between and sealed. In the lighting device 1, the both ends 12 of the globe 11 are sealed by the waterproof packing 50 between the end edge 13 and the outer surface 14 and the closing member 30. Thereby, it can prevent that water permeates into the inside of the globe 11 from the open both ends 12 of the globe 11. According to this configuration, even when a common groove, a crossing underpass, a culvert, a dam inspection road, a tunnel evacuation route, or the like to which the lighting device 1 is attached is submerged in the rain, water enters the inside of the lighting device 1. It is possible to prevent the lighting device 1 from being damaged due to water immersion.

  The waterproof packing 50 is formed so that the second seal portion 52 extends to the outside of the closing member 30 as shown in FIG. The length β of the second seal portion 52 extending from the closing member 30 is visible from the outside of the lighting device 1 to the waterproof packing 50 provided between the end portion 12 of the globe 11 and the closing member 30. Is set to about. According to this configuration, since the waterproof packing 50 is visible from the outside, the waterproof packing 50 can be visually confirmed from the outside with the lighting device 1 assembled, and the waterproof packing 50 is waterproof between the globe 11 and the closing member 30. It is possible to prevent the packing 50 from being forgotten. In addition, since the second seal portion 52 extends to the outside of the closing member 30, it is possible to prevent water from collecting on the end surface 52A of the second seal portion 52.

  The closing member 30 is formed in a bottomed annular shape having a bottom portion 40A and an annular portion 40B (see FIG. 4). The LED unit 20 is screwed with a screw 5 inserted in the coaxial direction of the globe 11 from the outside of the closing member 30 with the fixing surface 29 in close contact with the bottom 40A of the closing member 30 from the outside of the globe 11. A pedestal portion 31 is integrally provided at a predetermined position on the outer periphery of the annular portion 40B of the closing member 30. An attachment leg 38 for attaching the lighting device 1 to the installation surface is fixed to the pedestal portion 31. The pedestal portion 31 is provided with one screw hole 32 for screwing the mounting leg 38 with the screw 2 and a locking portion 33 for locking the mounting leg 38. The locking portions 33 are provided on both sides of the screw hole 32 and extend in a claw shape toward the outside of the lighting device 1. The attachment leg 38 is locked by the locking portion 33 and is fixed to the pedestal portion 31 by the screw 2 that is passed through the screw hole 32. According to this configuration, when the mounting leg 38 is screwed to the pedestal portion 31 with the screw 2, the mounting leg 38 is locked by the locking portion 33, so the force when the mounting leg 38 is screwed is used. It can be prevented from rotating.

  The mounting leg 38 is locked by the locking portion 33, and has a fixing portion 38 </ b> A that is screwed to the pedestal portion 31 with the screw 2 and a mounting portion 38 </ b> B that extends to both ends of the fixing portion 38 </ b> A. It is a band. A mounting hole 39 is provided in the mounting portion 38B. The lighting device 1 is attached to an arbitrary place by fixing the attachment hole 39 to an anchor bolt (not shown) extending from an installation surface such as a ceiling. According to this configuration, since the locking portion 33 does not fall off the mounting leg 38 in a state where the mounting leg 38 is fixed to the anchor bolt, the screw 2 falls off due to, for example, corrosion of the screw 2. Even in this case, the lighting device 1 is locked by the locking portion 33, and the lighting device 1 can be prevented from falling. As a result, the mounting leg 38 can be screwed to the pedestal 31 with the screw 2 only at one location, and the cost can be reduced, and the lighting device 1 can be prevented from falling even if the screw 2 is dropped. be able to.

  Plate members 17A and 17B are screwed to the closing member 30 from the outside with screws 3. A notch 18 is formed in the plate members 17A and 17B by cutting out a part of the outer periphery. A convex portion 37 is formed in the closing member 30 at a position corresponding to the notch 18. The plate members 17 </ b> A and 17 </ b> B are positioned with respect to the closing member 30 by aligning the notches 18 with the convex portions 37. A plug 19 to which wiring for supplying power to the LED unit 20 is connected is attached to the plate member 17A. Although wiring is connected to the lighting device 1 from one side, since the closing member 30 is made into a common part, the wiring member 43 is similarly provided in the closing member 30 attached to the other side to which no wiring is connected. The plate member 17B is formed in a circular flat plate shape and is configured to close the wiring hole 43 and the screw hole 41 through which the screw 5 for screwing the LED unit 20 passes from the outside.

  FIG. 3 is a development view of the lighting device 1. As shown in FIG. 3, the LED unit 20 includes an LED module 25, a power supply module 21, an LED module 25, and a support 24 that integrally supports the power supply module 21. The LED module 25 includes an LED substrate 26 and a plurality of LEDs 27 mounted on the LED substrate 26 side by side. A plurality of LED modules 25 can be attached to the lighting device 1, and the number of LED modules to be attached is configured to be arbitrarily changeable according to the brightness required for the lighting device 1. In the present embodiment, the lighting device 1 has eight LEDs 27 arranged and mounted on each LED board 26, and four LED modules 25 are attached to the bottom surface 24A of the support 24 formed in a substantially V-shaped cross section. It is configured. Each LED module 25 is attached to the support 24 by screwing the LED substrate 26 with the screw 7 from the bottom surface 24A side.

The power supply module 21 includes a power supply substrate 23 on which capacitors, transistors, and the like are mounted, a substrate holder 22 that holds the power supply substrate 23, and a cover 22 </ b> B that covers the power supply substrate 23. The substrate holder 22 is provided with a screw hole 22A for screwing the substrate holder 22 to the support 24.
The support 24 is formed by bending a high thermal conductivity material such as aluminum into an arbitrary shape by a press or the like. The support 24 has a role as a heat sink that absorbs heat generated by the LED 27 mounted on the LED substrate 26 attached to the bottom surface 24 </ b> A, absorbs the heat of the LED 27, and conducts heat to the closing member 30. The support 24 is an upper surface opening hollow member having an upper surface 24B opened. In the hollow portion 24 </ b> C of the support body 24, the fixtures 28 are provided across two places in the length direction of the support body 24. In the hollow portion 24 </ b> C, the power supply module 21 attached to the fixture 28 is accommodated so as not to contact the support 24. The fixture 28 is formed of a material having a large thermal resistance, such as stainless steel, to the extent that heat transfer from the power supply module 21 to the support 24 is prevented.

  According to these configurations, the support 24 formed of a high thermal conductivity material can be used as a heat sink, and the heat of the LED module 25 can be absorbed by the support 24. In addition, since the fixing surface 29 of the support 24 is fixed in close contact with the bottom 40A of the closing member 30 made of aluminum die cast, the heat of the LED module 25 absorbed by the support 24 is made of an aluminum alloy or the like which is a high thermal conductivity material. It is possible to conduct heat to the formed blocking member 30 and efficiently dissipate heat to the outside of the lighting device 1 through the blocking member 30. In addition, since the power supply module 21 is attached to the support 24 with the fixture 28 having a thermal resistance large enough to prevent heat transfer to the support 24 and housed in the hollow portion 24C, the power supply module 21 and the LED module 25 are mutually transmitted. Can block heat.

  A wiring hole 43 through which the wiring to the LED unit 20 is passed is provided in the bottom 40A of the closing member 30 at the substantially center of the disc-shaped bottom 40A. In the bottom portion 40A, four screw holes 41 are provided outside the wiring hole 43 at symmetrical positions on a diagonal line. The LED unit 20 is screwed to the closing member 30 with the screw 5 passed from the outside through the screw hole 41 so that the fixing surface 29 of the support 24 is in close contact.

  The closing member 30 can reduce the manufacturing cost of an aluminum die-casting die by making the closing member 30 that closes each of the end portions 12 of the globe 11 into a common member. From the outside of the closing member 30, the plate material 17 </ b> A is attached to one end portion 12 side, and the plate material 17 </ b> B is attached to the other end portion 12 side. A plug 19 is connected to the plate member 17A, and a through hole 48 through which a wiring connected to the plug 19 passes is provided. On the other hand, the plate member 17 </ b> B is configured to close the wiring hole 43 of the closing member 30 from the outside of the closing member 30.

FIG. 4 is a view showing the closing member 30, FIG. 4A is a view showing the front surface 30 </ b> A facing the outside of the lighting device 1, and FIG. 4B is a back surface facing the inside of the lighting device 1. It is a figure which shows 30B. As shown in FIG. 4, the closing member 30 includes an annular portion 40B having a substantially U-shaped cross section and a substantially disc-shaped bottom portion 40A provided on the inner periphery of the annular portion 40B.
As shown in FIG. 4A, the front surface 30A of the closing member 30 is provided with a groove 35 that surrounds the screw hole 41 that is a screwing position of the bottom portion 40A in the annular portion 40B. The front surface 30 </ b> A is provided with a communication portion 36 that allows the groove 35 to communicate with the outside in the outer circumferential direction of the closing member 30. In the present embodiment, the communication portion 36 is provided at a position shifted approximately 180 degrees along the outer periphery from the screw hole 32 for screwing the mounting leg 38 to the closing member 30. Moreover, the convex part 37 which made a part of outer periphery protrude in convex shape is provided in the outer periphery of the annular part 40B. In the present embodiment, the convex portions 37 are provided at two positions at positions shifted by approximately 90 degrees from the screw hole 32 and the communication portion 36, respectively.

As shown in FIG. 3, an O-ring 45 is fitted into the above-described groove 35 of the closing member 30, and the O-ring 45 is pressed by the plate members 17 </ b> A and 17 </ b> B from the outside of the closing member 30. The closing member 30 is provided with a screw hole 46 surrounding the periphery of the groove 35, and the plate members 17 </ b> A and 17 </ b> B are screwed to the closing member 30 with the screw 3 passed from the outside to the screw hole 46. The screw hole 46 is provided without penetrating the closing member 30. That is, the annular portion 40B of the closing member 30 is formed thick enough to allow the plate members 17A and 17B to be screwed without the screws 3 penetrating.
As described above, the closing member 30 includes the communication portion 36 that allows the groove 35 to communicate with the outside. As shown in FIG. 2, the communication portion 36 communicates the groove 35 in which the O-ring 45 is fitted in the outer circumferential direction of the annular portion 40 </ b> B with the plate members 17 </ b> A and 17 </ b> B screwed from the outside of the closing member 30. Let

According to this configuration, the communication portion 36 serves as a viewing window for looking through the O-ring 45 fitted into the groove 35 from the outside. After the lighting device 1 is assembled, the O-ring 45 is fitted into the groove 35. You can check if you have forgotten. In addition to removing the groove 35 from the communication portion 36, the O-ring 45 may be checked by for example inserting an inspection jig (not shown) from the communication portion 36 to forget to fit.
Further, the water that has entered the gap between the plate members 17 </ b> A and 17 </ b> B and the closing member 30 is prevented from entering the inside of the O-ring 45 by the O-ring 45. Thereby, it is possible to prevent water from entering the globe 11 from the wiring hole 43 or the screw hole 41 provided in the bottom portion 40A. Furthermore, in the present embodiment, the communication portion 36 is provided at a position shifted by approximately 180 degrees along the outer periphery from the screw hole 32 for screwing the attachment leg 38 to the closing member 30, so that the attachment leg 38 extends from the ceiling surface. When the lighting device 1 is attached while being fixed to an anchor bolt (hanging bolt), the communication portion 36 allows the groove 35 to communicate with the outside in a substantially vertical direction. Thereby, it can penetrate | invade into the clearance gap between board | plate material 17A, 17B, and the obstruction | occlusion member 30, and can drain the water which flowed along the outer periphery of an O-ring via the communicating part 36 efficiently with dead weight of water. .

  As shown in FIG. 4B, the back surface 30 </ b> B of the closing member 30 is provided with a carrier 42 on the bottom 40 </ b> A. The supporting part 42 is provided at two locations in an inverted C shape, and supports the support 24 in a state where the bottom surface 24 </ b> A of the substantially V-shaped support 24 abuts. When assembling the lighting device 1, the LED unit 20 can be housed in the globe 11, the LED unit 20 can be supported at a predetermined position by the supporting portion 42 of the closing member 30, and both ends 12 can be closed. The LED unit 20 can be easily screwed to the predetermined position from the outside.

  Moreover, the recessed part 34 is provided in the back surface 30B side of the annular part 40B along the outer periphery of 40 A of bottom parts. As shown in FIG. 3, the first seal portion 51 of the waterproof packing 50 is pushed into the closing member 30 by the end edge 13 of the globe 11. As a result, the first seal portion 51 is pressed and deformed in the recess 34, and the gap between the end edge 13 of the globe 11 and the closing member 30 is sealed. The waterproof packing 50 is formed of an elastic member having excellent heat resistance and water resistance such as silicon rubber.

  As shown in FIG. 5, the waterproof packing 50 includes a first seal portion 51 and a second seal portion 52 that are integrally formed in a substantially L-shaped cross section. The first seal portion 51 has a substantially O-shaped cross section, and plays the role of an O-ring that seals between the closing member 30 by being pressed and deformed by the end edge 13 of the globe 11. The second seal portion 52 is erected along the outer periphery of the first seal portion 51 and is formed in a bellows shape having protrusions 53 and 54 on both side surfaces. The second seal portion 52 has an opening angle α with respect to the outer surface 14 of the globe 11 and includes a tapered surface 55 that opens outward.

  As illustrated in FIG. 6, the closing member 30 includes a tapered surface 30 </ b> C that has an opening angle γ on the surface sandwiching the second seal portion between the globe 11 and the outer surface 14 of the globe 11 and opens outward. The opening angle γ is a draft for extracting the aluminum die-cast closing member 30 from the mold. The opening angle α of the tapered surface 55 of the second seal portion 52 is formed larger than the opening angle γ of the tapered surface 30C of the closing member 30. In this embodiment, the opening angle α of the tapered surface 55 of the second seal portion 52 is set to 5 degrees, while the opening angle γ of the tapered surface 30C of the closing member 30 is set to 2 degrees. The waterproof packing 50 can be formed by, for example, injection molding, and the taper surface 55 of the seal portion 52 may be formed as a draft for extracting the waterproof packing 50 from the mold.

  According to this configuration, since the opening angle α of the tapered surface 55 of the second seal portion 52 is formed larger than the opening angle γ of the tapered surface 30C of the closing member 30, the second seal portion 52 is formed on the closing member 30. In the pushed state, it is sandwiched between the outer surface 14 of the globe 11 and the closing member 30. Thereby, the sealing performance between the outer surface 14 of the globe 11 and the closing member 30 can be improved. Further, according to this configuration, the opening angle α of the taper surface 55 of the waterproof packing 50 and the opening angle γ of the taper 30C of the closing member 30 are set so that the draft angle at the time of formation is different. Since an arbitrary opening angle can be easily set, the sealing performance between the outer surface 14 of the globe 11 and the closing member 30 can be improved with a simple structure.

  In this way, the end surface 52A of the second seal portion 52 can be extended to the outside of the closing member 30 by the length β to prevent water from collecting on the end surface of the second seal portion 52. Further, the opening angle α of the tapered surface 55 of the second seal portion 52 is made larger than the opening angle γ of the tapered surface 30C of the closing member 30 to improve the sealing performance between the outer surface 14 of the globe 11 and the closing member 30. can do. Thereby, the waterproofing of the both end portions 12 of the globe 11 is achieved mainly by the second seal portion 52 on the outer surface 14 of the globe 11. Furthermore, the first seal portion 51 was formed into an O-shaped cross section, and was pressed and deformed by the first seal portion 51 to seal between the closing member 30 and the end edge 13. Thereby, even when water intrudes from the outer side surface 14, it is possible to prevent moisture from entering the globe 11 with the first seal portion 51. That is, in order to seal the outer surface 14 of the globe 11 and between the edge 13 and the closing member 30 with the waterproof packing 50, the joint groove, the crossing underground passage, the culvert, the dam inspection road, or the like, to which the lighting device 1 is attached, or Even when the tunnel refuge is flooded, water can be prevented from entering the globe 11.

  As described above, according to the embodiment to which the present invention is applied, the light source unit 20 is housed in the cylindrical globe 11 with both end portions 12 open, and each end edge 13 of the globe 11 is inserted into the closing member 30. In the lighting device 1 that is closed, the waterproof packing 50 is provided between the end edge 13 of the globe 11 and the closing member 30, and the waterproof packing 50 is pressed and deformed by the end edge 13 of the globe 11 and between the closing member 30. The first seal portion 51 to be sealed and the second seal portion 52 to be sandwiched between the outer surface 14 of the end portion 12 of the globe 11 and the closing member 30 and sealed are integrally provided. Thereby, the edge 13 of the globe 11 and the outer surface 14 and the closing member 30 can be sealed, and water can be prevented from entering the globe 11 from between the globe 11 and the closing member 30. Therefore, the waterproof performance of the lighting device 1 can be improved. In addition, the illuminating device 1 of the embodiment to which the present invention is applied is an immersion-type illuminating device whose waterproof specification satisfies the requirements of JIS standard IPX7.

  Further, according to the embodiment to which the present invention is applied, the second seal portion 52 is extended to the outside of the closing member 30 so as to be visible, so that the waterproof packing 50 can be viewed from the outside even when the lighting device 1 is assembled. This can be confirmed visually, and forgetting to sandwich the waterproof packing 50 between the globe 11 and the closing member 30 can be prevented. In addition, since the second seal portion 52 extends to the outside of the closing member 30, it is possible to prevent water from collecting on the end surface 52A of the second seal portion 52.

  Further, according to the embodiment to which the present invention is applied, the second seal portion 52 and the surface of the closing member 30 sandwiching the second seal portion 52 are opened outward with respect to the outer surface 14 of the globe 11. The tapered surface 55 is provided, and the opening angle α of the tapered surface 55 of the second seal portion 52 is made larger than the opening angle γ of the tapered surface 30C of the closing member 30. Accordingly, the second seal portion 52 is sandwiched between the outer surface 14 of the globe 11 and the closing member 30 while being pushed into the closing member 30 by the globe 11. Therefore, the adhesion between the outer surface 14 of the globe 11 and the closing member 30 and the second seal portion 52 can be improved, and the sealing performance between the outer surface 14 of the globe 11 and the closing member 30 can be improved. .

  Further, according to the embodiment to which the present invention is applied, the LED unit 20 is housed in the cylindrical globe 11 having both ends 12 opened, and the both ends 13 of the globe 11 are inserted into the closing member 30 and closed. In the apparatus 1, the LED unit 20 is brought into close contact with the closing member 30 from the outside and screwed. Thereby, the heat transfer efficiency from the LED unit 20 to the closing member 30 can be improved, and the heat generated by the LED unit 20 can be efficiently radiated to the outside via the closing member 30.

  Further, according to the embodiment to which the present invention is applied, the light source unit 20 is closely attached to the closing member 30 from the outside and screwed, and the groove 35 surrounding the screwing portion is provided, and the O-ring 45 is provided in the groove 35. The connecting portion 36 is provided so as to be fitted and pressed from the outside by the plate members 17A and 17B, and the groove 35 communicates with the outside. As a result, the light source unit 20 can be screwed to the closing member 30 from the outside, the assembly workability can be improved, and the plate material 17A, It is possible to prevent water that has entered the gap between the 17B and the closing member 30 from entering the globe 11 through the screwing points. Further, since the communication portion 36 that communicates the groove 35 with the outside is provided, it is possible to confirm from the communication portion 36 that the O-ring 45 is fitted in the groove 35 even when the lighting device 1 is assembled. Forgetting to fit the ring 45 can be prevented. Furthermore, the water that has entered the gap between the plate members 17A and 17B and the closing member 30 can be drained from the communicating portion 36 to the outside.

  In addition, according to the embodiment to which the present invention is applied, the LED unit 20 includes the LED module 25 in which the LED 27 is mounted on the LED substrate 26, and the LED module 25 is attached and supports the heat of the LED 27 to the closing member 30. The power supply module 21 is attached to the support 24 with a fixture 28 that has a body 24 and a power supply module 21 for lighting the LED 27 and has a large thermal resistance to the extent that heat transfer from the power supply module 21 to the support 24 is prevented. It was. Thereby, since the LED module 25 and the power supply module 21 can be integrally attached to the support 24 to form the LED unit 20 and can be stored in the globe 11, the assembly workability of the lighting device 1 can be improved. it can. Further, since the power supply module 21 is attached to the support 24 with the fixture 28 having a large thermal resistance to the extent that the heat transfer from the power supply module 21 to the support 24 is hindered, the LED module 25 and the power supply module 21 are not connected. Heat transfer can be prevented by the fixture 28, and even if the LED module 25 and the power supply module 21 are integrally attached to the support 24, they can be prevented from being affected by the mutual heat. 1 can be extended in service life.

Second Embodiment
1st Embodiment mentioned above is the structure which absorbs the heat_generation | fever of the LED module 25 with the support body 24, thermally conducts to the closure member 30, and radiates heat outside the illuminating device 1 through the closure member 30, and the power supply module 21 The heat transfer from the power supply module 21 to the support 24 is prevented, and the mutual heat transfer between the power supply module 21 and the LED module 25 is prevented. In the second embodiment, when the heat generation of the power supply module 121 is large, the heat generation of the power supply module 121 is absorbed by the support 24 to conduct heat to the closing member 30 and the outside of the lighting device 100 via the closing member 30. A configuration for radiating heat will be described. In the second embodiment, it is assumed that the support 24 has a sufficient heat capacity that can absorb the heat generated by the LED module 25 and the power supply module 121. In the following description, the same components as those in the first embodiment described above are denoted by the same reference numerals, and the description thereof is omitted.

  FIG. 7 is a perspective view showing the configuration of the illumination device 100 according to the second embodiment, FIG. 8 is a plan view, and FIG. 9 is an exploded perspective view. As shown in FIGS. 7 and 8, in the LED unit 120 of the lighting device 100, the power supply module 121 is arranged close to the one side surface 24 </ b> D side of the support 24. More specifically, the support 24 has side surfaces 24D and 24E extending from both edges of the bottom surface 24A formed in a substantially V-shaped cross section and formed substantially parallel to each other. The substrate holder 22 is formed in a substantially U-shaped cross section having two side walls 123 and 124 facing the bottom surface, and is provided with the power supply substrate 23 placed on the bottom surface. In the power supply module 121, the one side wall 123 of the substrate holder 22 is pressed against and brought into contact with the one side surface 24D of the support 24, and the entire one side wall 123 of the substrate holder 22 faces the one side surface 24D of the support 24. Placed in contact.

  The substrate holder 22 is formed from a high thermal conductivity material having at least the same thermal conductivity as that of the support 24, and is formed, for example, by bending a high thermal conductivity material such as an aluminum alloy into an arbitrary shape using a press or the like. Further, the power supply module 121 supports the heat generation of the power supply substrate 23 supported by the support 24 by pressing the side wall 123 of the substrate holder 22 holding the power supply substrate 23 against the side surface 24D of the support 24 to bring it into surface contact. Heat can be transferred to the body 24. As a result, heat generated from the power supply substrate 23 is transferred from the substrate holder 22 to the support 24, and even when the heat generation from the power supply substrate 23 is large, the power supply substrate 23 can be prevented from overheating. Further, since the heat transmitted to the support 24 can be radiated to the outside of the lighting device 100 through the closing member 30, it is possible to prevent heat generated by the power supply substrate 23 from entering the lighting device 100. .

  Further, according to this configuration, the LED module 25 is attached to the bottom surface 24A formed in a substantially V-shaped cross section of the support 24, and the power supply module 121 is brought into surface contact with the side wall 123 extending from both edges of the bottom surface 24A. Heat from the LED module 25 and the power supply module 121 is transferred to the support 24 through different surfaces of the support 24. Thereby, it can prevent that the LED module 25 and the power supply module 121 receive the influence of mutual heat.

As shown in FIGS. 9, 10, and 11, the substrate holder 22 is fixed to the support 24 by a fixture 128. The fixture 128 is formed of a material having high strength, such as stainless steel, for example, in order to stably hold the power module 121 having a relatively heavy weight in the hollow portion 24C of the support 24. Further, when the fixture 128 is formed of a stainless material having a large thermal resistance, the heat transferred from the one side wall 123 of the substrate holder 22 to the one side surface 24D of the support 24 is supplied via the fixture 128 as a power source. Returning to the module 21 can be prevented.
The fixture 128 is fixed integrally with the substrate holder 22 by screws 6 inserted into screw holes 22A provided at both ends of the substrate holder 22. The fixture 128 fixed to each end portion of the substrate holder 22 is fixed to one side surface 24D of the support 24 with screws 108 inserted from the inside of the hollow portion 24C of the support 24, respectively.

  As shown in FIG. 10, the fixture 128 is formed in a substantially L-shaped cross-section in which one end portion 127 is bent at a substantially right angle and raised substantially parallel to one side surface 24 </ b> D of the support 24. The one end 127 is formed with a screw hole 127A into which the screw 108 for fixing the fixture 128 to the support 24 is inserted. The other side surface 24 </ b> E of the support body 24 is provided with a slit 131 provided corresponding to the attachment position of the attachment tool 128. The fixture 128 has one end 127 fixed to one side 24D of the support 24 and the other end 129 fitted into a slit 131 formed on the other side 24E of the support 24. It is bridged by the hollow portion 24C.

  As shown in FIG. 11, the attachment 128 is provided with a neck portion 130 at the other end portion 129. On the other hand, the other side surface 24E of the support 24 is provided with an assembly notch 132 for communicating the slit 131 with the upper space. The neck portion 130 of the fixture 128 is configured to be insertable into the assembly cutout portion 132 of the support 24. When fixing the power supply module 121 to the support 24, first, the fixture 128 is fixed integrally to the power supply module 121. Next, the power module 121 is inserted into the hollow portion 24 </ b> C of the support 24 together with the fixture 128 by inserting the neck 130 of the fixture 128 into the notch 132 for assembly. Subsequently, the fixture 128 is inserted to the position of the slit 131 through the assembly notch 132, and the fixture 128 is slid so as to press the one end 127 of the fixture 128 against one side surface 24D of the support 24. The other end 129 of the fixture 128 is fitted into the slit 131 of the support 24. As a result, the one side wall 123 of the substrate holder 22 is pressed against the one side surface 24D of the support 24, and in this state, the support 24 and the fixture 128 are fixed by the screw 108.

  According to these configurations, the power supply module 121 can be easily attached by being inserted into the hollow portion 24 </ b> C from above the support 24 together with the fixture 128. Further, the other end portion 129 of the fixture 128 can be inserted into and supported by the slit 131, and the fixture 128 can be screwed to the support 24 with the screw 108, and the power supply module 121 can be attached to the support 24. Workability is improved. Further, the power supply module 121 can be fixed to the support 24 only by screwing the fixture 128 only on the one side surface 24D side of the support 24, and the number of screwing points can be reduced. Improves.

  As described above, according to the second embodiment to which the present invention is applied, the power supply module 121 is held by being connected to the substrate holder 22 made of a high thermal conductivity material and thermally connected to the substrate holder 22. The power supply board 23 is provided, and a part of the substrate holder 22 is supported by being in contact with the support 24, so that the heat generated by the power supply board 23 can be transferred from the substrate holder 22 to the support 24. Even when the heat generation from 23 is large, it is possible to prevent the power supply substrate 23 from being overheated. In addition, since the heat transmitted to the support 24 is radiated to the outside of the lighting device 100 through the closing member 30, it is possible to prevent heat generated by the power supply substrate 23 from entering the lighting device 100.

  As mentioned above, although this invention was demonstrated based on 1st and 2nd embodiment, this invention is not limited to this. In the present embodiment, the lighting device 1 is mounted by fixing the mounting leg 38 to the anchor bolt. However, the lighting device 1 is not limited to this, and the lighting device 1 connects, for example, a chain extending from the ceiling of the installation surface to the mounting leg 38. And the structure attached by chain suspension may be sufficient. Moreover, in this embodiment, although the illuminating device 1 was set as the structure by which the axial direction of the globe 11 was installed in the substantially horizontal direction, it is not restricted to this, For example, the illuminating device 1 makes the axial direction of a globe substantially vertical. It may be configured to be used by being fixed to a wall surface or the like in a standing state. In the present embodiment, the support 24 is formed by bending the bottom surface 24A into a substantially V shape and attaching the LED substrate 26 to each V-shaped surface. May be formed on a flat surface, and the LED substrate 26 may be attached to the flat surface.

DESCRIPTION OF SYMBOLS 1,100 Illuminating device 11 Globe 12 End (end)
13 Edge 14 Outer side surface 17A, 17B Board material (board)
19 Plug 20, 120 Light source unit (LED unit)
21, 121 Power module 22 Substrate holder 24 Support body 24D Side surface 25 LED module 26 LED substrate 27 LED
28, 128 Attachment 30 Closing member 30C Tapered surface 35 Groove 36 Communication portion 45 O-ring 50 Waterproof packing 51 First seal portion 52 Second seal portion 55 Tapered surface 123 Side wall α Opening angle β Length (extension length)
γ opening angle

Claims (5)

In the lighting device in which the light source unit is housed in a cylindrical glove whose both ends are open, and each of both end portions of the glove is inserted into a bottomed annular closing member having a bottom portion and an annular portion, and closed.
A waterproof packing is provided between the end of the globe and the closing member,
The waterproof packing includes a first seal portion that is sandwiched between the open end surface of the globe and the bottom portion of the closing member to be pressed and deformed, a cylindrical outer surface of the globe end portion, and the closing member. And a second seal portion that is sandwiched between and sealed with the annular portion,
A taper surface that opens outward with respect to the outer surface of the globe is provided on each of the second seal portion and the surface of the closing member that sandwiches the second seal portion, and the taper surface of the second seal portion is opened. An illumination device, wherein the angle is larger than the opening angle of the tapered surface of the blocking member.   The lighting device according to claim 1, wherein the second seal portion is made visible by extending to the outside of the closing member. Wherein the closing member, the light source unit are screwed are brought into close contact from the outside, is provided with a groove surrounding the screwing point, the plate Marete, from the outside in the groove come fitted an O-ring together are pressed, the lighting device according to claim 1 or 2, characterized in that the said groove communicating portion communicating is provided outside. The light source unit is an LED unit that uses an LED as a light source. The LED unit includes an LED module having the LED mounted on an LED substrate, and the LED module is mounted, and the heat of the LED is conducted to the blocking member. A support to be made and a power module of the LED,
The lighting device according to claim 3, wherein the power supply module is attached to the support by a fixture having a thermal resistance large enough to prevent heat transfer from the power supply module to the support. The power module includes a substrate holder which is formed from a high thermal conductivity material, and a power supply substrate that is held by being thermally connected to said substrate holder, a portion of the substrate holder is in contact with said support The lighting device according to claim 4, wherein the lighting device is supported by the lighting device.

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