JP6041205B2 - lighting equipment - Google Patents

Description

  The present invention relates to a waterproof lighting fixture.

  Conventionally, various types of waterproof lighting fixtures used outdoors are provided (see, for example, Patent Document 1). An example of this type of waterproof lighting apparatus is shown in FIG.

  This conventional example includes a bottomed cylindrical instrument body 500, a lamp socket 501 provided on the inner bottom surface of the instrument body 500, a rotating parabolic reflector 502, a panel (not shown), a panel press 503, and the like. .

  The reflector 502 has a flange 502A formed at the opening end on the large diameter side. On the other hand, the inner wall of the instrument body 500 is formed with a step portion 500A to which the flange 502A of the reflecting plate 502 is screwed from the front (upper side in FIG. 6).

  The panel pressing member 503 is formed in an annular shape, holds a panel formed in a disc shape with a light-transmitting material, and is screwed to the front end (upper end in FIG. 6) of the instrument body 500. A waterproof packing 504 is interposed between the panel holder 503 and the panel and the instrument body 500 to prevent rainwater and the like from entering the instrument body 500.

  In this conventional example, the screw 506 fixing the reflecting plate 502 may be seen from the front through the panel. Therefore, a cylindrical shield 505 is disposed between the vicinity of the tip of the instrument body 500 and the vicinity of the tip of the reflector 502 so that the screw 506 is hidden by the shield 505 so that it cannot be seen from the front through the panel. .

JP 2009-238534 A

  In the conventional example shown in FIG. 6, a member (shielding body 505) only for hiding the screw 506 for fixing the reflecting plate 502 is required, and there is a problem that the instrument body 500 becomes large.

  The present invention has been made in view of the above problems, and an object thereof is to reduce the size without impairing the appearance of the appearance.

The lighting fixture of the present invention includes a reflector that controls light distribution of a light source, and a fixture main body that houses the light source and the reflector in the interior and that irradiates light that is light-distributed and controlled by the reflector from an opening at the front end. A panel that is formed of a light-transmitting material and closes the opening of the instrument body; a panel retainer that holds the panel and is fixed to the instrument body; and the panel and the panel retainer and the instrument body A packing for closing a gap between the first packing portion and a mounting screw for attaching the packing to the panel press; the packing is sandwiched between a front end of the instrument body and the panel press; A second packing portion sandwiched between the panel presser and a tip portion that protrudes from the first packing portion or the second packing portion toward the reflection plate and becomes wide. A third packing portion that is in pressure contact with the front end of the reflecting plate, and the mounting screw is arranged so that the head is hidden in a space surrounded by the third packing portion and the panel press or the instrument body. is, the third gasket section is characterized Rukoto that have a reinforcing portion thickness is greater than the thickness of the other portions in the direction intersecting the direction of projecting toward the reflector.

  In this lighting fixture, the panel pressing member is screwed to the fixture main body along the protruding direction of the third packing portion, and the reinforcing portion is the third packing portion, It is preferable that the panel retainer is provided in the vicinity of a place where the panel retainer is screwed to the instrument body.

  The lighting fixture of the present invention is arranged so that the head of the mounting screw for mounting the packing is hidden in a space surrounded by the third packing portion of the packing and the panel press or the main body of the packing, and through the packing. Since the reflector is sandwiched between the packing retainer and the instrument body, there is no need for a member that only hides the screw that secures the reflector as in the conventional example, and as a result, it is possible to reduce the size without impairing the appearance. There is an effect that it can be planned.

It is sectional drawing of the principal part which shows embodiment of the lighting fixture which concerns on this invention. It is a perspective view same as the above. It is sectional drawing same as the above. It is sectional drawing of the principal part same as the above. It is a cross-sectional perspective view of the principal part same as the above. It is a cross-sectional perspective view which shows a prior art example.

  Hereinafter, with reference to FIGS. 1-5, embodiment of the lighting fixture (waterproof LED lighting fixture) which concerns on this invention is described in detail. In the following description, the front, rear, left, right and up directions are defined in FIG.

  This embodiment is classified as a spotlight or a projector. However, the lighting fixture to which the technical idea of the present invention is applicable is not limited to the spotlight and the projector.

  The present embodiment includes an LED module 1, an instrument body 2, a cover 3, a reflector 4, a panel 5, a packing 6, a panel press 7, a mounting arm 8, a lighting device 9, and the like.

  The LED module 1 has one or more LED chips mounted on the front surface of a rectangular ceramic substrate. These LED chips are sealed with a synthetic resin sealing member having translucency and mixed with a fluorescent material. That is, a part of the light emitted from the LED chip (for example, blue light) is wavelength-converted with a fluorescent material, and the wavelength-converted light (for example, yellow light) and the light that has not been wavelength-converted (blue light) are mixed. As a result, the light emitted from the LED module 1 becomes white light as a whole.

The instrument body 2 is formed by integrally forming an accommodating part 20, a holding part 21, a frame part 22, a mounting base 25, and the like by aluminum die casting. The storage unit 20 is formed in a bottomed cylindrical shape having an open rear end, and a large number of heat radiation fins 200 are provided at equal intervals in the front-rear direction on the outer peripheral surface thereof. The mounting base 25 is formed in a rectangular tube shape with an open rear end. However, there is no wall between the storage unit 20 and the mounting base 25, and both are connected on the opening surface (rear end surface) and inside (see FIG. 3).

  A cylindrical protrusion 23 is provided at the center of the bottom of the storage part 20. In addition, a plurality of (six in the illustrated example) ridges 24 projecting from the bottom of the storage unit 20 are provided to connect the projections 23 and the peripheral wall. That is, the protrusion 23 is thermally coupled to the peripheral wall of the storage portion 20 by the plurality of protrusions 24.

  Further, a plurality of (four in the illustrated example) support portions 26 project from the vicinity of the peripheral wall inside the storage portion 20. Inside these support portions 26, screw holes 260 whose rear end surfaces are open are formed in the front-rear direction.

  The holding portion 21 is formed in a rectangular tube shape that protrudes forward from the front surface of the bottom portion of the storage portion 20, and the LED module 1 is screwed and held on the inner bottom surface thereof. However, an insulating sheet (not shown) made of a material having relatively high thermal conductivity and electrical insulation is interposed between the inner bottom surface of the holding portion 21 and the LED module 1. . In addition, since the holding | maintenance part 21 is formed in the approximate center of the bottom part front surface, the area | region where the LED module 1 exists, and the protrusion 23 have overlapped seeing from the front-back direction.

The frame portion 22 has a truncated cone shape that protrudes forward from the peripheral edge on the front surface side of the storage portion 20, and has an open front surface and a hollow interior. The reflecting plate 4 is accommodated in the frame portion 22. The reflecting plate 4 is formed in a truncated cone shape that opens forward and backward by processing a metal plate. The reflector 4 is attached to the instrument main body 2 by sandwiching the outer flange portion 40 of the front end together with the panel 5 between the front end edge of the frame portion 22 and the panel presser 7. At this time, the LED module 1 is disposed in the opening on the rear end side of the reflection plate 4 attached to the instrument body 2. That is, the reflection plate 4 reflects a part of the light emitted from the LED module 1 on the inner peripheral surface (reflection surface) so that the light distribution of the light (illumination light) becomes a narrow-angle light distribution. I have control.

The panel 5 is formed in a disk shape with a glass plate or a plate material of a translucent material such as an acrylic resin or a polycarbonate resin. The panel retainer 7 is formed in an annular shape from a metal material, and is fixed to the front end of the frame portion 22 by screwing. Packing 6 is intended to prevent the ingress of rainwater by closing the gap between the panel 5 and the panel retainer 7 and instrumental tool body 2 (the frame portion 22).

  The lighting device 9 includes a lighting circuit (not shown) (for example, a power conversion circuit that converts AC input power into DC power) and a metal case 90 that houses the lighting circuit. The case 90 is formed in a rectangular box shape, and mounting pieces 91 project from the front end edges on both the upper and lower sides. Each attachment piece 91 has a screw insertion hole (not shown) passing through both ends in the left-right direction. The lower mounting piece 91 is integrally formed with a support piece 92 that protrudes forward from the lower edge.

  Thus, the lighting device 9 is attached to the instrument body 2 by screwing the attachment screws 93 inserted into the screw insertion holes of the attachment pieces 91 into the screw holes 260 of the support portions 26 of the storage portion 20. At this time, deformation of the mounting piece 91 and the like are suppressed by the tip of the support piece 92 coming into contact with the inner bottom surface of the storage unit 20. In addition, since the height dimension (length dimension in the front-rear direction) of the support part 26 is larger than the height dimension of the protrusion 23 and the protrusion 24, in the depth direction (front-rear direction) of the storage part 20. The lighting device 9 is supported while being separated from the protrusion 23 and the protrusion 24.

  The mounting arm 8 is formed by integrally forming a pair of arm pieces 80 and a fixed piece 81 by bending a metal plate such as a steel plate. The arm piece 80 is bent upward from the left and right ends of the fixed piece 81, and a bolt insertion hole (not shown) passes through the tip of each arm piece 80. That is, the bolts 82 inserted into the bolt insertion holes are inserted into the mounting base 25 through through holes (not shown) penetrating the left and right walls of the mounting base 25, and the nuts 83 are tightened to the bolts 82. Thus, each arm piece 80 is attached to the mounting base 25 of the instrument body 2.

  On the other hand, the fixing piece 81 is formed with a circular screw insertion hole 810 through which a fixing screw (not shown) is inserted, and a semicircular arc-shaped through groove 811 centering on the screw insertion hole 810. . That is, the fixing piece 81 is fixed to a construction (wall, ceiling, foundation, etc.) with screws inserted through the screw insertion hole 810 and the through groove 811 respectively. Further, the irradiation direction can be changed by rotating the fixing piece 8 along the through groove 811.

  The cover 3 closes the rear end surface of the instrument body 2 and is formed in a shape in which a disc-shaped portion corresponding to the storage portion 20 and a trapezoidal portion corresponding to the mounting base 25 are combined. Yes. A plurality (five in the illustrated example) of screw insertion holes penetrates the cover 3. That is, the instrument body 2 is covered by covering the rear end face of the instrument body 2 and screwing the screws 30 inserted into the respective screw insertion holes into the plurality of screw holes provided in the rear end face of the instrument body 2. The cover 3 can be attached to. However, a waterproof packing (not shown) is also interposed between the rear end surface of the instrument body 2 and the cover 3.

  Next, the waterproof structure which is the gist of the present invention will be described in more detail.

  The packing 6 in this embodiment is formed by integrally forming a first packing portion 60, a second packing portion 61, a third packing portion 62, and a reinforcing portion 63 with an elastic material such as silicone resin or synthetic rubber.

  The first packing portion 60 is formed in an annular shape with the front-rear direction as the thickness direction, and as shown in FIGS. 1 and 3 to 5, the front end of the instrument body 2 (the front end of the frame portion 22) and the panel presser 7 Sandwiched between them.

  The second packing portion 61 has an annular shape with a thickness dimension larger than that of the first packing portion 60, and a fitting groove 610 that fits with the peripheral portion of the panel 5 is provided on the inner peripheral surface. It is sandwiched between the panel holder 7 (see FIG. 1).

  The third packing portion 62 is formed in an annular shape that has a thickness direction in the vertical and horizontal directions and protrudes rearward (downward in FIG. 1) from the rear surface (lower surface in FIG. 1) to the reflector 4. Has been. In addition, a wide foot portion 620 that presses against the outer flange portion 40 provided at the front end of the reflecting plate 4 is integrally formed at the rear end portion of the third packing portion 62. The outer flange portion 40 is in contact with a step (not shown) protruding from the inner peripheral surface of the frame portion 22 from the front.

  As shown in FIG. 5, the reinforcing portion 63 is formed so that the thickness dimension in the vertical direction and the horizontal direction is larger than the thickness dimension of other portions of the third packing portion 62. That is, the strength against the force in the front-rear direction of the third packing portion 62 is improved by the reinforcing portion 63. In addition, it is preferable that this reinforcement part 63 is provided in the vicinity of the location which is fixing the panel holding | maintenance 7 to the instrument main body 2 in the 3rd packing part 62 (refer FIG. 5). That is, the strongest force (force in the front-rear direction) is applied to the third packing portion 62 at a location where the panel presser 7 is screwed to the instrument body 2. Therefore, in the 3rd packing part 62, the 3rd packing part 62 can be efficiently reinforced by providing the reinforcement part 63 in the vicinity of the said location.

  On the other hand, the panel presser 7 has a first presser part 70 that sandwiches the first packing part 60 between the front end face of the instrument body 2 (the front end face of the frame part 22) and the second packing part 61 between the panel 5. And a skirt portion 72 that protrudes rearward from the rear surface of the first pressing portion 70.

  A screw insertion hole 700 communicating with a plurality (four) of screw holes 220 provided on the front side of the instrument body 2 (frame portion 22) passes through the first pressing portion 70. That is, the panel holder 7 is fixed to the instrument body 2 by screwing the fixing screw 73 inserted through the screw insertion hole 700 into the screw hole 220 of the instrument body 2 through the through hole 600 penetrating the first packing part 60 ( (See FIG. 2). Here, when the panel presser 7 is fixed to the instrument body 2, the outer flange portion 40 of the reflector 4 is formed between the foot portion 620 of the third packing portion 62 and the step projecting from the inner peripheral surface of the frame portion 22. Is pinched. That is, in this embodiment, it is not necessary to screw the reflector 502 to the instrument body 500 as in the conventional example shown in FIG. 6, and the assembly work can be simplified compared to the conventional example.

  The second pressing portion 71 is formed in a step shape in the front-rear direction, and is in pressure contact with the second packing portion 61 from the front and side (up, down, left, and right) directions.

  The skirt portion 72 is fitted with a step portion 221 provided outside the front surface of the frame portion 22 so as to cover and hide the joint portion between the packing 6 and the instrument main body 2 (frame portion 22).

  By the way, the packing 6 is screwed to the panel presser 7 from behind. Specifically, a mounting plate 74 that sandwiches the first packing portion 60 and the second packing portion 61 between the first pressing portion 70 and the rear surface of the second pressing portion 71 is screwed to the rear surface side of the panel pressing member 7. ing.

  The mounting plate 74 is formed in an annular shape by processing a metal plate. As shown in FIGS. 1, 4, and 5, the mounting plate 74 is mounted on the rear surface side of the panel retainer 7 by a mounting screw 75 in a space surrounded by the third packing portion 62 and the instrument body 2 (frame portion 22). Screwed on. Here, the height dimension (length dimension in the front-rear direction) of the third packing portion 62 is made larger than the height dimension of the head 750 of the mounting screw 75. Therefore, the head portion 750 of the attachment screw 75 for attaching the attachment plate 74 to the panel presser 7 is hidden in the space surrounded by the third packing portion 62 and the instrument main body 2 (frame portion 22). That is, the head 750 of the mounting screw 75 is not visible from the outside through the panel 5 by being blocked by the third packing portion 62.

  As described above, in this embodiment, the head 750 of the mounting screw 75 for mounting the packing 6 is hidden in the space surrounded by the third packing portion 62 of the packing 6 and the instrument body 2 (frame portion 22). Placed in. Therefore, the head 750 of the mounting screw 75 cannot be seen from the front through the panel 5, so that the appearance of the appearance is not impaired. Further, since the reflecting plate 4 is sandwiched between the packing presser 7 and the instrument body 2 via the packing 6, a member (shielding member) only for hiding the screws 506 for fixing the reflecting plate 502 as in the conventional example. 505) becomes unnecessary, and the size can be reduced as compared with the conventional example.

1 LED module (light source)
2 Instrument body 5 Panel 6 Packing 7 Panel presser
60 First packing part
61 Second packing part
62 3rd packing part
75 Mounting screw
750 head

Claims (2)

A reflector that controls light distribution of a light source; an instrument body that houses the light source and the reflector in the interior and that emits light that is light-distributed and controlled by the reflector through a front end opening; and a light-transmitting material A panel formed to close the opening of the instrument body, a panel presser holding the panel and fixed to the instrument body, and a packing closing the gap between the panel and the panel presser and the instrument body A mounting screw for attaching the packing to the panel holder,
The packing includes a first packing portion sandwiched between a front end of the instrument body and the panel press, a second packing portion sandwiched between the panel and the panel press, and the first packing portion or the A third packing portion that protrudes from the second packing portion toward the reflecting plate and that has a wide end and press-contacts the front end of the reflecting plate;
The mounting screw is arranged so that the head is hidden in a space surrounded by the third packing part and the panel press or the instrument body ,
The third packing unit, luminaire, characterized in Rukoto that have a reinforcing portion thickness is greater than the thickness of the other portions in the direction intersecting the direction of projecting toward the reflector. The panel retainer is screwed to the instrument main body along the protruding direction of the third packing part, and the reinforcing part is configured to hold the panel retainer in the third packing part. The lighting fixture according to claim 1, wherein the lighting fixture is provided in the vicinity of a portion screwed to the main body .

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