JP6132098B2 - lighting equipment - Google Patents

Description

  Embodiments of the present invention relate to a lighting fixture to which a reflector is attached.

  Conventionally, in a lighting fixture such as a downlight, for example, a reflector is inserted and attached to an opening of a cylindrical fixture body in which a predetermined light source is arranged. For the attachment of the reflector, a reflector mounting spring disposed on the side surface of the instrument body is mainly used, and the reflector inserted into the opening of the instrument body is caught by the reflector mounting spring. A reflector is attached to the main body.

JP 2013-140757 A

  When the instrument body is placed in a limited installation space after using a predetermined light source, the outer shape of the instrument body must be reduced, but the reflector mounting spring and light source disposed on the side of the instrument body are Interference may occur and the reflector cannot be attached using the reflector attachment spring.

  The problem to be solved by the present invention is to provide a lighting apparatus that can cope with the downsizing of the outer shape of the apparatus main body and attach a reflector to the apparatus main body.

The lighting fixture of embodiment is provided with a fixture main body and a reflector. The instrument main body has a cylindrical frame part in which an opening is formed, and a fitted part provided on a side surface of the frame part, and a light source is arranged inside the frame part. Reflector is inserted from the opening on the inside of the frame portion reflecting portion the light is formed in a cylindrical shape so as to pass the insertion placed Rutotomoni light source, the inside of protruding from frame portion around the reflecting portion A plurality of guide plate portions, a plurality of flat plate portions projecting around the reflecting portion between the guide plate portions and having a distal end projecting from the distal end side of the guide plate portion and being inserted inside the frame portion, and these flat plates It has a fitting part which is provided in the tip side of a part and carries out uneven fitting to a to- be-fitted part.

  According to the present invention, since the fitting portion provided on the side surface of the reflector is unevenly fitted to the fitted portion provided on the side surface of the frame portion of the device main body, the fitting body provided without using the reflector mounting spring. A reflector can be attached, and it can be expected that it will be possible to cope with downsizing of the outer shape of the instrument body.

It is sectional drawing of the lighting fixture which shows one Embodiment. It is a perspective view of the decomposition | disassembly state of a lighting fixture same as the above. It is a perspective view of the assembly state of a lighting fixture same as the above. It is a bottom view of the heat radiator of a lighting fixture same as the above.

  Hereinafter, an embodiment will be described with reference to FIGS. 1 to 4.

  The luminaire 10 is an embedded luminaire such as a downlight that is installed in an embedded hole opened in a ceiling member. This lighting fixture 10 uses a flat lamp device 12 using a base structure such as a GH76p type as a light source. The lighting apparatus 10 uses a lamp device 12 having a diameter of a prescribed size, but the diameter of the embedded hole corresponds to a small diameter of about 100 mm, for example, and the outer diameter of the apparatus is made smaller than before. is there.

  The lamp device 12 includes a cylindrical housing 13, and a cylindrical wall portion 14 is erected at the center of the upper surface side of the housing 13. A disk-shaped heat conductor 15 made of, for example, aluminum die casting is disposed in the housing 13 through the wall portion 14. The upper side of the heat conductor 15 is configured as a protrusion 16 that protrudes from the housing 13. A plurality of key grooves 15a and a plurality of keys 15b are disposed at predetermined positions around the protrusion 16 of the heat conductor 15.

  A light emitting module 18 having a light emitting element 17 is attached to the lower surface of the heat conductor 15. The light emitting module 18 is a COB (Chip On Board) module in which a plurality of LED chips are mounted on the substrate 19 as the light emitting element 17 and are integrally sealed with a sealing resin containing a phosphor. As the light emitting element 17, an SMD (Surface Mount Device) package may be used, or another semiconductor light emitting element such as an EL element may be used.

  The light emitting module 18 is mounted in a state of being pressed against the lower surface of the heat conductor 15 by the annular mounting frame 20. Below the light emitting module 18, a disc-shaped translucent cover 22 held by a cylindrical reflecting plate 21 is disposed so as to face. An annular cover 23 is attached to the lower surface of the housing 13 to press and hold the periphery of the translucent cover 22 against the reflecting plate 21. A transparent window 24 through which light transmitted through the transparent cover 22 passes is formed at the center of the cover 23, and a plurality of finger hooks 25 for rotating the lamp device 12 are provided on the lower surface of the cover 23. ing.

  A plurality of, for example, six pins 26 project from the peripheral portion on the upper surface side of the housing 13. Of the plurality of pins 26, two are for power supply connected to the light emitting module 18, and the rest are for signal transmission.

  The lighting fixture 10 includes a fixture body 30, a socket 31, a reflector 32, and a power supply device 33.

  The appliance main body 30 includes a radiator 36, a decorative frame 37 as a frame portion disposed below the radiator 36, and a plurality of attachment springs 38 attached to the decorative frame 37.

  The radiator 36 is made of a metal material such as aluminum die casting. The radiator 36 includes a planar mounting surface portion 40, a peripheral wall portion 41 projecting from the peripheral portion of the mounting surface portion 40, and a plurality of heat radiation fins 42 projecting from the upper surface of the mounting surface portion 40.

  The socket 31 is screwed and fixed to the lower surface of the mounting surface portion 40, and the upper surface of the heat conductor 15 of the lamp device 12 attached to the socket 31 is brought into contact with heat conduction so that the mounting base portion 43 protrudes. . In the peripheral region of the mounting surface portion 40 facing the socket 31, a wiring groove 45 that allows the electric wire 44 connected to the socket 31 to be disposed is formed. The wiring groove 45 may be provided on the entire circumference of the mounting base 43, or may be provided in a part of the circumferential direction in relation to a region where the electric wire 44 connected to the socket 31 is routed. A wiring hole 46 communicating with the wiring groove 45 and penetrating vertically through the mounting surface portion 40 is formed.

  The peripheral wall portion 41 is formed with flat portions 47 at a plurality of locations in the circumferential direction. In the present embodiment, the plane portions 47 are formed at three locations that are equally spaced in the circumferential direction of the peripheral wall portion 41. The flat portion 47 is flat on both the inner surface and the outer surface of the peripheral wall portion 41, and the inner surface side protrudes to the inner side of the peripheral wall portion 41 by an amount that is not curved. Therefore, the groove width of the wiring groove 45 is narrow in the flat portion 47, but the groove width of the wiring groove 45 is wide and the wiring hole 46 is formed in the arc portion excluding the flat portion 47. A plurality of bosses 48 for fixing the decorative frame 37 with screws are formed on the peripheral wall portion 41. The inner surface and the outer surface of the boss 48 protrude from both the inner surface and the outer surface of the peripheral wall portion 41.

  The heat radiating fins 42 are provided with a plurality of heat radiating fins 42 spaced from each other, and a wiring hole 46 is communicated between the plurality of heat radiating fins 42.

  The decorative frame 37 is formed in a cylindrical shape that opens in the vertical direction by a metal material such as aluminum die casting or a resin material. The decorative frame 37 includes a cylindrical portion 50 and an annular decorative frame portion 51 that protrudes outward from the lower end of the cylindrical portion 50, and an opening 52 is formed inside the cylindrical portion 50 and the decorative frame portion 51. Yes.

  The cylindrical portion 50 is formed with flat portions 53 at a plurality of locations in the circumferential direction. The flat portion 53 is formed at three positions corresponding to the flat portion 47 of the radiator 36 and at equal intervals in the circumferential direction of the cylindrical portion 50. The flat surface portion 53 is flat on both the inner surface and the outer surface of the cylindrical portion 50, and the inner surface side protrudes into the opening portion 52 by an amount that is not curved. The cylindrical portion 50 is provided with a boss 54 for screwing in accordance with the position of the boss 48 of the radiator 36. The inner surface and the outer surface of the boss 54 protrude from both the inner surface and the outer surface of the cylindrical portion 50.

  A spring attachment portion 55 for attaching the attachment spring 38 is provided on the outer surface of the flat portion 53. The spring mounting portion 55 is formed with a guide portion 56 that is mounted by sliding the mounting spring 38 from above, and a locking hole 57 that is hooked by the mounting spring 38 attached to the guide portion 56 to prevent it from coming off. Has been.

  The flat portion 53 is formed with a fitted portion 58 for attaching the reflector 32 on the upper side of the spring attachment portion 55. The fitted portion 58 is constituted by a horizontally long hole 59.

  In the decorative frame portion 51, at least one hollow portion 60 is formed. In the present embodiment, the two recessed portions 60 are provided, one corresponding to the position of the fitted portion 58 and the other corresponding to the position between the adjacent fitted portions 58.

  Since the decorative frame 37 is molded by a molding die, the outer surface and the inner surface are provided with a die-cut taper so as to be removed from the molding die after the molding. The outer surface of the decorative frame 37 is provided with a die cutting taper of 1 °, for example, in which the diameter on the upper side is smaller than the lower side so that the decorative frame 37 can be removed downward from the mold. The inner surface of the decorative frame 37 is provided with a die-cut taper in different inclination directions on the upper and lower sides with the parting line 37a as a boundary, and the decorative frame 37 extends downward from the mold above the parting line 37a. The diameter on the lower side becomes smaller than the upper side so that it can be removed, for example, a die cutting taper of 2 ° is attached, and the decorative frame 37 is pulled upward from the molding die below the parting line 37a. For example, a die cut taper of 2 ° is attached. As described above, the angle of the die-cut taper is different between the outer surface and the inner surface of the decorative frame 37, and the inner surface of the decorative frame 37 is different in the direction of the inclination direction on the upper side and the lower side with the parting line 37a as a boundary. The taper is attached.

  Further, the attachment spring 38 is configured by a leaf spring, and an attachment piece 62 to be attached to the spring attachment portion 55 is provided at one end, and the expansion portion 63 extends from the attachment piece 62 to the side by elasticity. It is bent. The attachment piece 62 is formed with a hook portion that is attached to the spring attachment portion 55 so as to be caught in the locking hole 57 and prevented from coming off.

  The socket 31 includes a socket body 65 made of an insulating synthetic resin and formed in an annular shape, and a plurality of terminals 66 arranged on the socket body 65. Of the plurality of terminals 66, two are for power supply and the rest are for signal transmission.

  A circular insertion port 67 through which the protruding portion 16 of the lamp device 12 is inserted is formed at the center of the socket body 65. A plurality of connection holes 68 into which the pins 26 of the lamp device 12 are inserted are formed in the bottom surface of the socket body 65 in the shape of a long hole along the circumferential direction. A terminal 66 is disposed above each connection hole 68, and the pin 26 of the lamp device 12 inserted into the connection hole 68 is electrically connected to the terminal 66.

  On the inner peripheral surface of the socket body 65, a plurality of keys 65a are formed so as to protrude, and a plurality of substantially L-shaped key grooves 65b are formed. The key 65a and key groove 65b of the socket 31 and the key groove 15a and key 15b of the lamp device 12 are provided at corresponding positions. Then, the key groove 15a and the key 15b of the lamp device 12 are aligned with the key 65a and the key groove 65b of the socket 31, and the protruding portion 16 of the lamp device 12 is inserted into the insertion port 67 of the socket 31 to rotate the lamp device 12. Thus, the lamp device 12 can be detachably attached to the socket 31.

  The socket 31 is supported on the mounting surface portion 40 of the heat radiating body 36 via a support mechanism. In this support mechanism, the lamp device 12 is mounted on the socket 31 so that the upper surface of the heat conductor 15 is pressed against the mounting surface portion 40 of the heat radiating body 36 to enhance the heat conductivity.

  Further, the reflector 32 is formed in a cylindrical shape that is opened in the vertical direction by, for example, a synthetic resin material. The reflector 32 includes a cylindrical reflecting portion 72 that expands downward, and an annular edge portion 73 that protrudes outward from the lower end of the reflecting portion 72. A reflection surface 74 made of, for example, a quadratic curved surface is formed on the inner surface of the reflection portion 72. The upper end of the reflection portion 72 is disposed in the vicinity of the periphery of the light transmission window 24 of the lamp device 12, and the lower end of the reflection portion 72 is a makeup. The frame 37 is arranged in the vicinity of the decorative frame portion 51. The edge portion 73 can be fitted to the inner peripheral side of the decorative frame portion 51 of the decorative frame 37.

  On the side surface of the reflector 32, a plurality of flat plate portions 75, which are rising portions, protrude integrally from the edge 73 side, and a guide plate portion 76 is integrated between the flat plate portions 75. Projected to The flat plate portion 75 has a flat outer surface, and is formed at three positions corresponding to the flat portion 53 of the decorative frame 37 and at equal intervals in the circumferential direction of the reflector 32. The guide plate portion 76 is formed at a position corresponding to the position of the arcuate inner peripheral surface of the decorative frame 37. The reflector 32 can be inserted into the opening 52 of the decorative frame 37 only at a position where the flat plate portion 75 fits the flat portion 53 of the decorative frame 37.

  The distal ends of the flat plate portion 75 and the guide plate portion 76 are free ends that can be elastically deformed in the radial direction of the reflector 32, and the flat plate portion 75 protrudes upward from the guide plate portion 76.

  On the outer surface in the vicinity of the distal end side of the flat plate portion 75, a fitting portion 77 that fits the fitting portion 58 is provided. The fitting portion 77 is constituted by a projection 78 protruding from the outer surface of the flat plate portion 75, and is configured to be caught in the hole 59 of the fitted portion 58. The upper surface side of the projection 78 is formed in an arc surface so that it can easily enter the inner surface side of the flat portion 53, and the lower surface is formed in an inclined surface so that it can be caught in the hole 59 and can be removed from the hole 59.

  Further, the power supply device 33 is connected to the socket 31 and the electric wire 44. The power supply device 33 is a power supply circuit that rectifies and smoothes a commercial AC power supply and converts it into a DC power supply, a DC / DC converter that supplies the DC power supply to the lamp device 12 as a predetermined DC output by switching the switching element, a switching element And a control IC for controlling the oscillation of the. In the case of the power control device 33 that supports dimming, the current of the light emitting element 17 of the lamp device 12 is detected and compared with a reference value corresponding to the dimming signal, and the switching operation of the switching element is controlled by the control IC. .

  Then, the lighting fixture 10 configured in this manner is embedded and installed in the embedded hole opened in the ceiling member. First, a predetermined electric wire such as a power supply line or a signal line drawn out from the embedded hole is connected to the power supply device 33, and the power supply device 33 is inserted into the embedded hole with the end portion facing upward, and the electric wire device is located above the ceiling member. While tilting 33 horizontally, the instrument body 30 is inserted into the embedding hole from the upper side. When the instrument body 30 is inserted into the embedded hole, the attachment spring 38 is also inserted into the embedded hole while the attachment spring 38 is elastically deformed and pressed along the side surface of the instrument body 30. After the mounting spring 38 is inserted into the embedding hole, the pressing of the mounting spring 38 is released, so that the mounting spring 38 expands and comes into contact with the upper side of the ceiling member by the repulsive force against the elastic deformation of the mounting spring 38 and the ceiling. The instrument body 30 is pulled upward with respect to the member. As a result, the decorative frame portion 51 is in an installed state in contact with the lower surface of the ceiling member, that is, the ceiling surface, and the installed state is maintained by the attachment spring 38.

  The lamp device 12 is inserted from the opening 52 of the instrument body 30 and attached to the socket 31. The protrusion 16 of the lamp device 12 is inserted into the insertion port 67 of the socket 31, and the key groove 15a and key 15b of the lamp device 12 are inserted into the key 65a and key groove 65b of the socket 31, and the lamp device 12 is rotated. By doing so, the lamp device 12 is mounted in the socket 31. When the lamp device 12 is mounted in the socket 31, the pin 26 of the lamp device 12 is electrically connected to the terminal 66 of the socket 31, and the upper surface of the heat conductor 15 is in contact with the mounting surface portion 40 of the radiator 36. Furthermore, the upper surface of the heat conductor 15 is pressed against the mounting surface portion 40 of the radiator 36 by the socket 31, and good thermal conductivity from the lamp device 12 to the radiator 36 becomes possible.

  The reflector 32 is inserted from the opening 52 of the instrument body 30 and attached to the instrument body 30. In this case, the reflector 32 is inserted into the opening 52 of the decorative frame 37 at a position where the flat plate portion 75 of the reflector 32 is fitted to the flat portion 53 of the decorative frame 37. At this time, the protrusion 78 protruding from the outer surface of the flat plate portion 75 enters the inner surface side of the flat portion 53, and the flat plate portion 75 is elastically deformed toward the center side of the reflector 32. After the flat plate portion 75 enters the inside of the decorative frame 37, the guide plate portion 76 enters the inside of the decorative frame 37, and positions the horizontal position of the reflector 32 and the decorative frame 37. Then, the projection 78 reaches the position of the hole 59 of the decorative frame 37 immediately before the mounting position where the reflector 32 is mounted on the decorative frame 37, and the protrusion 78 is fitted into the hole 59 by the repulsive force against the elastic deformation of the flat plate portion 75. Then, the reflector 32 is pulled up to the mounting position with respect to the decorative frame 37 and locked. That is, the fitting portion 58 of the decorative frame 37 and the fitting portion 77 of the reflector 32 are concavo-convexly fitted. The reflector 32 at the mounting position is held with the edge portion 73 fitted inside the decorative frame portion 51.

  Further, by supplying power to the lamp device 12 from the power supply device 33 through the socket 31, the light emitting element 17 of the lamp device 12 is turned on. Light generated by the light-emitting element 17 that has been lit passes through the transparent cover 22, and part of the light that has passed through the transparent cover 22 passes directly inside the reflector 32 and is directly irradiated in a predetermined irradiation direction. A part of the light transmitted through the translucent cover 22 is reflected by the reflecting surface 74 of the reflector 32 and irradiated in a predetermined irradiation direction.

  When the lamp device 12 is turned on, heat generated by the light emitting element 17 is mainly conducted from the substrate 19 to the heat conductor 15, and from the upper surface of the protrusion 16 of the heat conductor 15 to the heat radiator 36. Then, heat is radiated from the plurality of radiating fins 42 of the radiating body 36 into the air.

  When the lamp device 12 is removed, first, the reflector 32 is removed from the instrument body 30. In order to remove the reflector 32, a protrusion 78 is formed in the hole 59 by placing a finger on the edge 73 of the reflector 32 from the recess 60 provided in the decorative frame portion 51 of the decorative frame 37 and pulling down the reflector 32. The fitting part 77 is detached from the fitted part 58, and the reflector 32 can be moved downward and removed from the decorative frame 37. At this time, if the operation of removing the reflector 32 from the recess 60 arranged corresponding to the position between the adjacent fitted parts 58 is performed, the decorative frame of the edge 73 of the reflector 32 and the decorative frame 37 There is a gap between the part 51 and it is easy to put a finger on it. Further, if the reflector 32 is removed from the recessed portion 60 provided corresponding to the position of the fitted portion 58, the protrusion 78 is easily removed directly from the hole 59.

  And in the lighting fixture 10 of the present embodiment, the fitting portion 77 provided on the side surface of the reflector 32 and the fitting portion 58 provided on the side surface of the decorative frame 37 of the fixture body 30 are unevenly fitted. The reflector 32 can be attached to the instrument main body 30 without using a body attaching spring, and the size of the outer shape of the instrument main body 30 can be reduced.

  Further, since the fitted portion 58 of the decorative frame 37 is provided in the spring attachment portion 55, the fitted portion 58 can be provided together with the spring attachment portion 55, and the productivity of the decorative frame 37 can be improved.

  Furthermore, the flat portion 53 is formed on the inner surface of the decorative frame 37 corresponding to the position of the spring mounting portion 55, the flat plate portion 75 is provided on the side surface of the reflector 32, and the fitting portion 77 is provided on the flat plate portion 75. The insertion position of the reflector 32 in the circumferential direction with respect to the decorative frame 37 can be positioned, and when the reflector 32 is inserted into the decorative frame 37, the fitted portion 58 and the fitting portion 77 can be easily fitted into the concave and convex portions, and the reflector 32 mounting workability can be improved.

Furthermore, since the decorative frame 37 is formed in a cylindrical shape with its peripheral surface closed, the surface area of the outer surface of the decorative frame 37 is widened, and heat transferred from the lamp device 12 to the decorative frame 37 is transferred to the outer surface of the decorative frame 37. de be radiated from Ki, it can improve heat dissipation.

  Further, in the lighting fixture 10 of the present embodiment, since the wiring groove 45 is provided in the region facing the socket 31 of the mounting surface portion 40 of the radiator 36, when the socket 31 is attached to the radiator 36, it is connected to the socket 31. Wire 44 can be arranged in the wiring groove 45, the wire 44 is easy to handle, and the wire 44 is sandwiched between the socket 31 and the radiator 36, and the wire 44 is prevented from protruding inside the socket 31. Thus, the socket 31 can be easily attached to the heat radiating body 36, and the assemblability can be improved.

  Furthermore, since the angle of the punching taper is different between the inner surface and the outer surface of the decorative frame 37, the outer diameter of the decorative frame 37 can be reduced. For example, by increasing the angle of the die cutting taper on the inner surface side of the decorative frame 37, the mold release property is ensured, and by reducing the angle of the die cutting taper on the outer surface side of the decorative frame 37, the decorative frame 37 The outer diameter of the lower side of the can be reduced. Moreover, on the inner surface of the decorative frame 37, since the die cutting taper in the inclined direction is different between the upper side and the lower side with the parting line 37a as a boundary, compared to the case where it is configured with only one die cutting taper, The inner diameter of the decorative frame 37 can be increased.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

10 Lighting equipment
12 Lamp device as light source
17 Light emitting element
30 Instrument body
32 Reflector
37 Makeup frame as a frame
38 Mounting spring
52 opening
53 Plane section
55 Spring mounting part
58 Mated part
72 reflector
75 Flat part
76 Guide plate
77 Mating part

Claims (4)

An instrument main body having a cylindrical frame portion in which an opening is formed, and a fitted portion provided on a side surface of the frame portion, and a light source is disposed inside the frame portion;
Reflecting portion the light is formed in a cylindrical shape so as to pass the insertion arranged Rutotomoni the light source from the opening on the inside of the frame portion, projecting from the periphery of the reflective portion is inserted inside the frame portion A plurality of guide plate portions, and a plurality of flat plates that protrude between the guide plate portions around the reflecting portion and that protrude from the front end side of the guide plate portion and are inserted inside the frame portion And a reflector having a fitting portion that is provided on the front end side of these flat plate portions and that fits unevenly into the fitted portion;
The lighting fixture characterized by comprising. On the side surface of the frame portion, a spring attachment portion is formed to which an attachment spring that is developed to the side of the frame portion is attached.
The lighting fixture according to claim 1, wherein the fitted portion is provided in the spring mounting portion. The inner surface of the front Symbol frame portion, wherein the guide plate section is arc-shaped inner circumferential surface to be inserted is formed, the planar portion into which the flat portion corresponding to the position of the spring mounting portion is to be inserted lighting device according to claim 2, wherein the but has been formed. The light source has a light emitting element;
The lighting device according to any one of claims 1 to 3, wherein the frame portion is formed in a cylindrical shape whose peripheral surface is closed.

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