JP2013073744A - Luminaire - Google Patents

Abstract

An illumination device capable of ensuring waterproofness is provided.
A lighting device 10 includes a socket 12, a lamp device 11, and a cap 13. The socket 12 includes a socket body 55 and a socket attachment body 56 provided so as to surround the socket body 55. The lamp device 11 includes a base 35 attached to the socket main body 55, a housing 20 housing a semiconductor light emitting element, and an annular lamp side engaging portion 40 protruding from the outer surface of the housing 20. The lamp side engagement portion 40 is attached in close contact with the socket attachment body 56 via the annular packing 41. The cap 13 has a cap side engaging portion 69 that engages with the lamp side engaging portion 40. By attaching the cap 13 to the socket attachment body 56, the lamp side engagement portion 40 is brought into close contact with the socket attachment body 56 via the packing 41 by the cap side engagement portion 69.
[Selection] Figure 1

Description

  Embodiments described herein relate generally to a lighting device having a waterproof structure.

  Conventionally, there is a lighting device including a lamp device using a semiconductor light emitting element as a light source and a socket in which the lamp device is mounted. However, the lighting device itself does not have a waterproof structure.

  Therefore, in order to ensure waterproofness in such a lighting device, for example, for outdoor use, the lighting device is arranged in a lighting fixture having a waterproof structure.

JP 2011-165499 A

  As described above, since the lighting device itself did not have a waterproof structure, for example, a lighting fixture having a waterproof structure had to be used to ensure waterproofness for outdoor use.

  The problem to be solved by the present invention is to provide a lighting device that can ensure waterproofness.

  The lighting device of the embodiment includes a socket, a lamp device, and a cap. The socket has a socket body and a socket attachment body provided so as to surround the socket body. The lamp device includes a base attached to the socket body, a housing that houses the semiconductor light emitting element, and an annular lamp-side engaging portion that protrudes from the outer surface of the housing. The lamp-side engaging portion is attached in close contact with the socket attachment body via an annular packing. The cap has a cap side engaging portion that engages with the lamp side engaging portion. By attaching the cap to the socket attachment body, the lamp side engagement portion is brought into close contact with the socket attachment body via the packing at the cap side engagement portion.

  According to the present invention, by attaching the cap to the socket attachment body of the socket to which the lamp device is attached, the lamp side engagement portion is brought into close contact with the socket attachment body via the packing at the cap side engagement portion. Can be provided with a waterproof structure, and for example, it can be expected to ensure waterproofness even when the socket body is movable with respect to the socket mounting body.

It is sectional drawing of the illuminating device which shows one Embodiment. It is a perspective view of the decomposition | disassembly state of an illuminating device same as the above.

  Hereinafter, an embodiment will be described with reference to FIGS. 1 and 2.

  As shown in FIGS. 1 and 2, the lighting device 10 is for outdoor use, for example, and the lighting device 10 itself has a waterproof structure.

  The lighting device 10 includes a flat lamp device 11, a socket 12 to which the lamp device 11 is detachably attached, and a cap 13 that brings the lamp device 11 into close contact with the socket 12 and improves waterproof performance. Hereinafter, one surface of the lamp device 11 that emits light is referred to as a front surface, and the other surface that is opposite to the one surface is referred to as a back surface.

  The lamp device 11 includes a light emitting module 16, a base body 17 to which the light emitting module 16 is attached, a base member 18 attached to the base body 17 so as to accommodate the base body 17, and a casing 20 configured by a globe 19. And a lighting circuit 21 housed in the housing 20.

  The light emitting module 16 includes a substrate 23 made of, for example, metal or ceramics, and a light emitting unit 24 that is a surface light source is formed on the substrate 23. The light emitting unit 24 uses a semiconductor light emitting element such as an LED element or an EL element as a light source. In this embodiment, an LED element is used as the semiconductor light emitting element, and a COB (Chip On Board) system is adopted in which a plurality of LED elements mounted on the substrate 23 are integrally covered with a phosphor layer. Note that a plurality of SMD (Surface Mount Device) packages on which high-power LED elements are mounted may be mounted on the substrate 23. Then, an insulating holder 25 is attached to the substrate 23, a heat conductive sheet 26 is interposed between the substrate 23 and the base 17, and the substrate 23 is attached to the base 17 by a plurality of screws 27 inserted through the holder 25. It has been. Therefore, the substrate 23 is thermally connected to the base body 17 so that the heat generated by the LED element is efficiently conducted to the substrate 17.

  The base body 17 is integrally formed of, for example, an insulating material such as a metal material or a synthetic resin, and includes a disk-shaped substrate portion 29 and a cylindrical side surface portion 30 provided in the peripheral portion of the substrate portion 29. Yes. The light emitting module 16 is attached to the front surface of the substrate portion 29, and the side surface portions 30 protrude from the front and rear surfaces of the substrate portion 29. An annular recess 32 for arranging an annular packing 31 interposed between the globe 19 and the plurality of protrusions 33 for connecting the globe 19 are formed on the outer surface of the side surface 30. The side portion 30 protrudes from a plurality of locations in the circumferential direction.

  The base member 18 is integrally formed of an insulating material such as synthetic resin, for example, and includes a cylindrical base 35 attached to the socket 12. The base 35 is, for example, a GX53-type base, is formed to protrude from the back side of the base member 18, and the inside of the base 35 is opened toward the front side. A cylindrical projecting portion 36 is integrally formed at the center of the back surface of the base 35, and a pair of lamp pins (not shown) project from the periphery of the back surface of the base 35. A plurality of L-shaped key grooves (not shown) are provided on the outer surface of the projecting portion 36 for rotational mounting with respect to the socket 12.

  A fitting portion 37 that fits inside the side surface portion 30 of the base member 17 is formed on the front surface of the base member 18 so as to protrude, and an annular packing 38 interposed between the base member 17 and the outer surface of the fitting portion 37. An annular recess 39 is formed in which is disposed. The base member 18 is fixed to the base body 17 with a plurality of screws S inserted from the base body 17 side in a state where the fitting portion 37 is fitted to the base body 17.

  An annular lamp-side engagement portion 40 is formed so as to protrude from the outer surface of the casing 20 and from the outer surface of the base member 18. An annular recess 42 in which an annular packing 41 interposed between the lamp-side engaging portion 40 and the socket 12 is disposed is formed on the back surface of the lamp side engaging portion 40.

  The globe 19 is formed integrally with an insulating material having translucency, such as a synthetic resin, and is attached so as to cover the disk-shaped front surface portion 44 disposed to cover the front surface of the base body 17 and the side surface of the base body 17. A side portion 45 is provided. A plurality of protrusions 46 that are engaged with the protrusions 33 of the base body 17 and are connected to the base body 17 protrude from a plurality of locations in the circumferential direction on the inner side surface of the side surface portion 45. Further, a slit 48 into which the pin 47 is inserted is formed at one place on the side surface portion 45. Then, the pin 47 inserted into the slit 48 is fixed to the base body 17 so that the globe 19 is prevented from rotating with respect to the base body 17 with the protrusion 46 of the globe 19 and the protrusion 33 of the base body 17 engaged. Yes.

  The side surface 45 of the globe 19 is configured as an outer surface of the housing 20, and an annular lamp side engaging portion 40 projects from the outer surface of the housing 20. Therefore, the outer surface of the housing 20 (the side surface portion 45 of the globe 19) facing the lamp-side engaging portion 40 is formed of an insulating material, and the lamp-side engaging portion 40 has the light emitting side housing 20 The outer surface is formed of an insulating material. In the present embodiment, the entire housing 20 is formed of an insulating material.

  The lighting circuit 21 is configured by mounting a plurality of components 51 constituting a circuit on one side of a printed wiring board 50. The lighting circuit 21 is accommodated in a space formed in the base 35 between the base body 17 and the base member 18 and attached to the base member 18. The back surface of the base 17 facing the lighting circuit 21 is covered with a cover 52 formed of an insulating material such as synthetic resin. A pair of lamp pins is electrically connected to the input part of the lighting circuit 21, and the LED element of the light emitting module 16 is electrically connected to the output part. The lighting circuit 21 is, for example, a power supply circuit that rectifies and smoothes commercial AC power and converts it to DC power, and a DC / DC converter that supplies the DC power to the LED element as a predetermined DC output by switching of the switching element and lights it. And a control IC for controlling the oscillation of the switching element.

  Further, the socket 12 includes a socket body 55 to which the base 35 of the lamp device 11 is attached, and a socket attachment body 56 to which the socket body 55 is attached.

  The socket body 55 corresponds to, for example, a GX53 type base, and is integrally formed of an insulating material such as a synthetic resin, for example, and an opening 57 through which the protruding portion 36 of the base 35 is inserted is formed at the center. A plurality of keys 58 are formed on the inner periphery of the opening 57 so that a plurality of L-shaped key grooves provided on the outer surface of the protrusion 36 can be rotatably mounted.

  A pair of connection holes 59 in which a pair of lamp pins are rotationally mounted is formed on the front surface of the socket body 55, and terminals (not shown) to which the lamp pins are electrically connected are arranged inside the connection holes 59.

  The socket attachment body 56 is integrally formed of an insulating material such as synthetic resin, for example, and includes a disk-shaped attachment plate portion 60 and a side surface portion 61 provided around the attachment plate portion 60. A socket body 55 is attached to the front surface side of the attachment plate portion 60, and a socket attachment body 56 is provided so as to surround the socket body 55. A disc-shaped packing 62 is attached to the back side of the attachment plate portion 60. Note that a power cable (not shown) passes through the packing 62 and is wired in the socket 12 and is electrically connected to a terminal disposed on the socket body 55.

  The side surface portion 61 is formed in a cylindrical shape having an outer diameter that is substantially the same as the outer diameter of the lamp-side engagement portion 40 of the lamp device 11. On the front surface of the side surface portion 61, an annular receiving portion 63 is formed to which the lamp side engaging portion 40 of the lamp device 11 is in close contact with the packing 41 interposed. On the outer side surface of the side surface portion 61, a male screw 64 as a socket side mounting portion to which the cap 13 is attached is spirally formed along the outer surface of the side surface portion 61.

  The socket body 55 may be provided separately from the socket attachment body 56 and movable in the front-rear direction (the attachment / detachment direction of the lamp device 11) with respect to the socket attachment body 56. In this case, by attaching the base 35 of the lamp device 11 to the socket main body 55, the socket main body 55 moves toward the base 35 against the bias of the spring, and the lamp device 11 is moved to the socket 12 by the bias of the spring. Pull to the side. Thereby, the lamp device 11 and the socket 12 are in close contact with each other, and the waterproof performance and the heat radiation performance are improved.

  The cap 13 is formed of a metal material in a cylindrical shape, and includes a cylindrical side surface portion 67 that fits outside the lamp side engaging portion 40 and the socket 12 of the lamp device 11. An opening 68 through which the globe 19 of the lamp device 11 passes is formed on the front surface of the cap 13.

  On the front side of the side surface portion 67, an annular cap-side engagement portion 69 that is engaged with the front side of the lamp-side engagement portion 40 of the lamp device 11 attached to the socket 12 is formed. The cap-side engaging portion 69 is formed with a contact surface 70 that contacts the front surface of the lamp-side engaging portion 40 and a facing surface 71 that faces the side surface portion 45 of the globe 19 with a space therebetween.

  On the inner side surface of the side surface portion 67, a female screw 72 as a cap side mounting portion that is screwed into the male screw 64 of the socket 12 is formed in a spiral shape along the inner side surface of the side surface portion 67.

  Next, the operation of the illumination device 10 will be described.

  In the lamp device 11, the base body 17 and the base member 18 are in close contact with each other through the packing 38, and the base body 17 and the globe 19 are in close contact with each other through the packing 31. Therefore, the casing 20 composed of the base member 18 and the globe 19 forms a waterproof structure.

  The socket 12 is fixed to an installation surface such as an outdoor wall surface or ceiling surface by screwing via a packing 62, for example. Further, when the socket 12 is installed, a power cable is wired to the socket 12.

  Then, the base 35 of the lamp device 11 is fitted from the front side of the socket body 55 of the socket 12, the key groove of the base 35 is inserted into the key 58 of the socket body 55, and the lamp pin is inserted into the connection hole 59. By fitting the base 35 of the lamp device 11 into the socket body 55, the packing 41 is sandwiched between the lamp side engaging portion 40 and the receiving portion 63 of the socket mounting body 56.

  The lamp device 11 is fitted into the socket body 55, and the lamp device 11 is rotated by a predetermined angle in a state where the lamp side engaging portion 40 is pressed against the receiving portion 63 of the socket mounting body 56 via the packing 41. The key groove engages with the key 58 of the socket body 55 to attach the lamp device 11 to the socket 12, and the lamp pin is electrically connected to a terminal disposed inside the connection hole 59. At this time, as described above, when the socket main body 55 is provided so as to be movable in the front-rear direction (the attaching / detaching direction of the lamp device 11) with respect to the socket mounting body 56, the base 35 of the lamp device 11 is attached to the socket main body 55. As a result, the socket main body 55 moves toward the base 35 against the bias of the spring, and the lamp device 11 is pulled toward the socket 12 by the bias of the spring.

  Thus, even when the lamp device 11 is attached to the socket 12, the lamp-side engaging portion 40 of the lamp device 11 is brought into close contact with the receiving portion 63 of the socket attachment body 56 via the packing 41, and waterproofness is obtained.

  Further, the cap 13 is put on the front side of the lamp device 11 and the socket 12 and fitted to the outside of the socket mounting body 56, and the female screw 72 is screwed to the male screw 64 of the socket mounting body 56. When the female screw 72 is screwed into the male screw 64, the cap side engaging portion 69 comes into contact with the lamp side engaging portion 40, and the lamp side engaging portion 40 is connected to the receiving portion 63 of the socket mounting body 56 via the packing 41. Press to make contact. When the lamp side engaging portion 40 contacts the receiving portion 63 of the socket mounting body 56, tightening by rotation of the cap 13 is restricted, and in this state, the lamp device 11, the socket 12 and the cap 13 are firmly tightened and fixed. Is done.

  The cap 13 causes the lamp side engaging portion 40 and the socket mounting body 56 to be in contact with each other via the packing 41 by pressing the lamp side engaging portion 40 to the receiving portion 63 of the socket mounting body 56 via the packing 41 and closely contacting them. Adhesiveness with the receiving part 63 is increased, and more reliable waterproof performance is obtained.

  When the cap 13 is attached, the globe 19 of the lamp device 11 protrudes through the opening 68 of the cap 13. In this state, the inner side surface of the cap-side engaging portion 69 is close to and opposed to the side surface portion 45 of the globe 19.

  Further, by supplying power to the lamp device 11 through the socket 12, the power converted by the lighting circuit 21 is supplied to the plurality of LED elements, and the plurality of LED elements are lit. Light is emitted from the light emitting unit 24 by turning on the plurality of LED elements, and the emitted light passes through the globe 19 and is irradiated to the outside.

  The heat generated by the plurality of LED elements at the time of lighting is mainly conducted to the base body 17 and is transmitted from the base body 17 to the cap 13 through the cap member 18 and the like, and is efficiently radiated from the metal cap 13 to the outside.

  Further, the cap 13 is made of metal, the cap side engaging portion 69 of the cap 13 is in contact with the lamp side engaging portion 40, and the inner side surface of the cap side engaging portion 69 is close to and faces the globe 19. However, since the lamp-side engaging portion 40 and the globe 19 constituting the casing 20 of the lamp device 11 are formed of an insulating material, it is possible to ensure insulation performance and pressure resistance performance.

  As described above, the lighting device 10 of the present embodiment attaches the cap 13 to the socket mounting body 56 of the socket 12 to which the lamp device 11 is attached, so that the lamp side engaging portion 40 is connected by the cap side engaging portion 69. Since the lighting device 10 itself can be provided with a waterproof structure so as to be in close contact with the socket mounting body 56 via the packing 41, it is waterproof even when the socket body 55 is movable with respect to the socket mounting body 56. Can be secured. As described above, the lighting device 10 having a waterproof structure can be used for outdoor use, for example, without being arranged in a lighting fixture having a waterproof structure.

  Furthermore, the lamp device 11 can be firmly held in the socket 12 by the cap 13, and the lamp device 11 can be reliably prevented from being loosened or detached from the socket 12.

  Further, the metal cap 13 can secure the heat dissipation performance of the heat generated by the semiconductor light emitting element, and can further improve the strength.

  Further, since the outer surface of the casing 20 of the lamp device 11 is provided with an insulating material, even if the cap side engaging portion 69 of the metal cap 13 approaches the outer surface of the casing 20 of the lamp device 11. Insulation performance and pressure resistance performance can be ensured.

  Further, since the outer surface of the light emitting side casing 20 from the lamp side engaging portion 40 of the lamp device 11 is provided with an insulating material, the cap side engaging portion 69 of the metal cap 13 is Even if it contacts the lamp side engaging portion 40 or approaches the outer surface of the housing 20, the insulation performance and pressure resistance performance can be secured.

  The lamp device 11 and the socket 12 are not limited to those corresponding to the GX53 type base, but may be those corresponding to other types of base structures.

  Further, the outer side surface of the housing 20 formed of an insulating material is not limited to the side surface portion 45 of the globe 19, and a part of the base member 18 may be extended, or another insulating member may be provided. .

  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
11 Lamp device
12 socket
13 cap
20 enclosure
35 base
40 Lamp side engagement
41 packing
55 Socket body
56 Socket mounting body
69 Cap side engagement

Claims (5)

A socket having a socket body and a socket mounting body provided so as to surround the socket body;
A base attached to the socket body; a housing containing the semiconductor light emitting element; and an annular lamp-side engaging portion protruding from an outer surface of the housing, the lamp-side engaging portion having an annular packing A lamp device attached in close contact with the socket attachment body via
A cap-side engagement portion that engages with the lamp-side engagement portion, and is attached to the socket attachment body so that the lamp-side engagement portion is attached to the socket attachment body via the packing. A cap to be closely attached to;
An illumination device comprising: A socket having a socket body and a socket mounting body provided so as to surround the socket body;
A base attached to the socket body; a housing containing the semiconductor light emitting element; and an annular lamp-side engaging portion protruding from an outer surface of the housing, the lamp-side engaging portion having an annular packing A lamp device which is attached in close contact with the socket attachment body and wherein the lamp side engaging portion is provided with an insulating material;
A cap-side engagement portion that engages with the lamp-side engagement portion, and is attached to the socket attachment body so that the lamp-side engagement portion is attached to the socket attachment body via the packing. A metal cap that adheres to the surface;
An illumination device comprising: The lighting device according to claim 2, wherein the lamp device is provided with an insulating material on an outer surface of the housing adjacent to the cap. The lighting device according to claim 2, wherein an outer surface of the casing on the light emission side from the lamp side engaging portion is provided with an insulating material. A socket having a socket body and a socket mounting body provided so as to surround the socket body;
A base attached to the socket body; a housing containing the semiconductor light emitting element; and an annular lamp-side engaging portion protruding from an outer surface of the housing, the lamp-side engaging portion having an annular packing A lamp device in which the outer surface of the casing on the light emission side from the packing is provided with an insulating material, and is attached in close contact with the socket mounting body through the packing;
A cap-side engaging portion that engages with the lamp-side engaging portion; and attaching the lamp-side engaging portion to the socket body through the packing at the cap-side engaging portion by attaching the cap-side engaging portion to the socket mounting body. A metal cap to be adhered;
An illumination device comprising:

Images