JP6614778B2 - lighting equipment - Google Patents

Description

  The present invention relates to a luminaire provided with a light-transmitting cover at an exit opening.

  Conventionally, there has been known a lighting fixture in which an emission opening of a fixture body having a light source module attached to the inner bottom surface is covered with a translucent cover, and this cover is fixed to the front end of the fixture body with a cover press (for example, Patent Document 1). In these lighting fixtures, the cover presser is screwed and fixed to the fixture body, and the cover is sandwiched between the cover presser and the fixture body.

JP 2014-1112489 A

However, a structure in which the cover holder is screwed and fixed to the front end of the fixture body, and the cover is sandwiched between the cover holder and the fixture body, the workability during assembly and maintenance of the lighting fixture is poor, and the cover can be simplified. There was a request to fix it.
This invention is made | formed in view of the situation mentioned above, and aims at providing a lighting fixture provided with the cover which can be easily fixed to an output opening.

In order to achieve the above-described object, the present invention provides a lighting fixture including a light-transmitting cover at an exit opening of a fixture body to which a light source module is attached, and a resin cover press is formed on the periphery of the cover. The cover retainer has an end wall portion provided on the frame portion of the cover, and has a claw portion formed at the tip of a pair of elastic portions extending in the direction of the instrument body on the end wall portion. A groove portion into which the end wall portion is fitted is provided on a placement surface on which the inner surface of the cover around the emission opening is placed, and the bottom surface of the groove portion engages with the placement surface through the front and back surfaces. A hole is formed, the claw portion is inserted into the locking hole, the cover is fixed to the instrument body, and the claw portion inserted into the locking hole is provided on the periphery of the emission opening. A notch that is exposed on the side of the instrument body is formed. The features.

  Moreover, the present invention is characterized in that, in the above-described lighting apparatus, the cover is made of glass, and the cover and the cover presser are integrally formed by insert molding.

  Further, the present invention is characterized in that, in the above-described lighting fixture, a central part of the cover is a transparent lens part, and a light diffusion part is provided around the lens part.

  Moreover, the present invention is characterized in that, in the above-mentioned lighting fixture, the lens portion includes a plurality of projections and depressions provided on the fixture body side.

  Moreover, the present invention is characterized in that in the above-mentioned lighting apparatus, the lens portion is a Fresnel lens.

  Moreover, the present invention is characterized in that, in the above-described lighting fixture, the lens portion is a convex lens.

  According to the present invention, in a lighting fixture including a light-transmitting cover at an emission opening of a fixture main body to which a light source module is attached, a resin cover press is formed on the periphery of the cover, and the cover press is A claw part formed at the tip of a pair of elastic parts extending in the direction of the instrument body, the claw part being inserted into a locking hole formed at the periphery of the emission opening, and the cover being attached to the instrument Since it is fixed to the main body, there is no need to sandwich the cover between the cover press and the instrument main body and attach the cover to the instrument main body, and the cover can be easily fixed to the instrument main body integrally with the cover press.

It is a perspective view which shows the lighting fixture of embodiment of this invention from the front side. It is a side view of a lighting fixture. It is a disassembled perspective view of a lighting fixture. It is a figure which shows the structure of a lighting fixture, (A) is a front view, (B) is AA sectional drawing of (A), (C) is BB sectional drawing of (A), (D) is ( It is CC sectional drawing of A). It is a figure which shows the structure of a cover unit, (A) is a front view, (B) is a top view, (C) is a bottom view, (D) is a left side view, (E) is a right side view, (F) (A) AA sectional drawing of (A), (G) is BB sectional drawing of (A). It is a front view of a housing | casing. It is a figure which shows the cover unit of a modification. It is sectional drawing which shows the structure of a lens part.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a lighting fixture 1 according to this embodiment. FIG. 2 is a right side view of the lighting fixture 1. FIG. 3 is an exploded perspective view of the lighting fixture 1. The luminaire 1 is a projector that can be used as, for example, area illumination or signboard illumination. As shown in FIGS. 1, 2, and 3, the luminaire main body 10, a cover unit 40, a back guard 50, It has.

  As shown in FIG. 3, the instrument body 10 includes a rectangular box-shaped casing 11 and a light source module 12 provided on the bottom surface of the casing 11. The light source module 12 includes an LED, which is an example of a light emitting element, as a light source. The light source module 12 is preferably a chip-on-board (COB) type high-power LED in which a large number of LEDs are densely arranged on an LED substrate to form a planar light emitting unit. Further, the casing 11 is provided with a reflecting mirror 14 that controls the light distribution of the light source module 12. The housing 11 is formed to an appropriate depth in which the reflecting mirror 14 can be housed (see FIG. 4).

  As shown in FIG. 6, a light source attachment portion 21 to which the light source module 12 is attached is provided on the bottom surface 20 of the housing 11. The light source module 12 is attached by being thermally connected to the light source attachment portion 21. The casing 11 is made of a material having excellent thermal conductivity, and can be made of, for example, aluminum die cast. The light source mounting portion 21 is formed integrally with the casing 11.

As shown in FIG. 3, a plurality of heat radiation fins 17 for radiating heat generated from the light source module 12 are provided on the back surface 16 of the bottom surface 20 of the housing 11 on which the light source module 12 is provided. The heat from the light source module 12 is transferred to the light source mounting portion 21, further transferred from the light source mounting portion 21 to the radiation fins 17 and radiated to the outside.
A back guard 50 surrounding the periphery of the heat radiation fins 17 is attached to the back surface 16 of the housing 11. The back guard 50 can be made of resin, protects the structure provided on the back surface 16 of the housing 11, and prevents the fingers from touching the heat radiation fins 17 and the charging part on the back surface 16 of the housing 11. prevent. The back guard 50 is provided with a plurality of slits 51. The slit 51 is formed in a size that prevents a finger from entering the back guard 50 through the slit 51. Further, the heat of the radiation fins 17 is radiated to the outside of the back guard 50 through the slits 51.
In addition, mounting arms 15 are provided on both side surfaces of the housing 11 so as to sandwich the housing 11. The attachment arm 15 is an attachment member for fixing the lighting fixture 1 to the installation surface, and has a function of rotatably supporting the fixture main body 10.

In the housing 11, an opening in front of the light source module 12 is configured as an emission opening 13. The output opening 13 is provided with a cover unit 40 that covers the output opening 13. The cover unit 40 includes a cover 41 that is a translucent member, and a cover presser 42 that is provided on the cover 41 in a frame shape.
The cover 41 is formed of rectangular plate-like glass, and as shown in FIG. 4, at least light from the light source module 12 and a range through which light from the light source module 12 whose light distribution is controlled by the reflecting mirror 14 are transmitted. Configured to cover. The cover presser 42 is made of resin and is integrally formed with the cover 41 by insert molding. That is, the cover unit 40 is a unit in which a glass cover 41 and a resin cover retainer 42 are integrally formed by glass insert molding.

  As shown in FIG. 5, the cover retainer 42 includes a frame portion 43 formed in a frame shape of the cover 41 and an end wall portion 44 provided along the outline of the frame portion. The end wall portion 44 is formed to be higher than the thickness of the cover 41 as shown in FIGS. 5 (F) and 5 (G). The end wall portion 44 is provided with a fixing claw 46 for fixing the cover unit 40 to the instrument body 10 on a pair of end walls 45 in the longitudinal direction. At least one fixing claw 46 is provided on each end wall 45. In the present embodiment, two fixed claws 46 are provided on each end wall 45. Further, these four fixing claws 46 are provided at target positions with respect to the center line in the short direction and the long direction of the cover unit 40, respectively.

The front end surface 18 of the housing 11 is provided with a locking hole 19 to which the fixing claw 46 of the cover unit 40 is hooked at a position corresponding to the fixing claw 46 of the cover unit 40. The cover unit 40 is fixed to the instrument main body 10 by hooking a fixing claw 46 to the locking hole 19 provided in the casing 11 and closes the emission opening 13 of the casing 11.
Further, on the front end surface 18 of the housing 11, a mounting surface 23 on which the inner surface 41 </ b> A of the cover 41 is mounted is provided around the emission opening 13. Further, a groove 22 into which the end wall portion 44 is inserted is formed around the placement surface 23 on the front end surface 18 of the housing 11. The aforementioned locking hole 19 is provided in this groove 22. When the cover unit 40 is attached to the front surface of the instrument body 10, the mounting surface 23, the groove 22, and the locking hole 19 are substantially the same as the front end surface 18 of the housing 11 and the frame portion 43 of the cover unit 40. Configured to be flush.

  The locking hole 19 is a hole having a rectangular cross section that penetrates the front and back surfaces of the front end surface 18 of the housing 11. The fixed claw 46 includes a pair of elastic portions 47 and a claw portion 48 provided at each distal end portion of the elastic portion 47 and projecting in a direction opposite to each other. When the fixed claw 46 is pushed into the locking hole 19, the elastic portion 47 is elastically deformed, and the claw portion 48 moves along the inner wall surface of the locking hole 19. When the fixing claw 46 is pushed to the maximum depth of the locking hole 19, the claw portion 48 protrudes from the locking hole 19 as shown in FIG. Be hooked.

  As shown in FIG. 2, on the side surface 18 </ b> A of the front end surface 18 of the housing 11, when the cover unit 40 is removed from the instrument body 10, a claw portion 48 that is hooked on the back surface of the front end surface 18 is provided in the locking hole 19. A notch 24 is formed to push it back in. An operator accesses the claw portion 48 from the notch 24, applies a force in a direction to bring the pair of claw portions 48 closer to each other by hand or a tool, elastically deforms the elastic portion 47, and locks the claw portion 48. By pushing back into the hole 19, the cover unit 40 can be easily removed from the instrument body 10. As described above, the cover unit 40 is configured to be easily detachable by the deformation of the elastic portion 47.

  FIG. 7 is a view showing a cover unit 140 according to a modification. In the cover unit 140 of this modification, a lens portion 141A is provided at a position corresponding to the exit opening of the reflecting mirror 14 at the center portion of the cover 141, and a light diffusing portion 141B in which a peripheral portion of the lens portion 141A is subjected to embossing. Is provided. As shown in FIG. 8, the lens portion 141 </ b> A includes a plurality of irregularities formed on the inner surface of the cover 141, that is, the surface of the cover 141 on the instrument body side. The lens unit 141A is configured to illuminate the irradiated surface by narrowing the light distribution angle of light from the light source module 12 and the reflecting mirror 14. Although not shown, the lens unit 141A is a Fresnel lens, and the lens unit 141A distributes light from the light source module 12 and the reflecting mirror 14 so as to illuminate a desired irradiation range. good. Furthermore, although illustration is omitted, the lens 141 part A is a convex lens and may be configured to condense light from the light source module 12 and the reflecting mirror 14 onto the irradiated surface. In addition, the light diffusing unit 141B is configured to prevent glare by diffusing light irradiated to other than the irradiated surface. Furthermore, the design property of the lighting fixture 1 can be improved by making the inside of the fixture main body 10 difficult to see by the light diffusion portion 141B.

  As described above, according to this embodiment, in the lighting fixture 1 including the light-transmitting cover 41 in the emission opening 13 of the fixture body 10 to which the light source module 12 is attached, the cover 41 is made of resin on the periphery. A cover presser 42 is formed, and the cover presser 42 has a claw portion 48 formed at the tip of a pair of elastic portions 47 extending in the direction of the instrument body 10, and is a latch formed at the periphery of the emission opening 13. The claw portion 48 is inserted into the hole 19 to fix the cover 41 to the instrument body 10. According to this configuration, the cover 41 does not need to be clamped between the cover presser 42 and the instrument body 10 and attached to the instrument body 10, and the cover 41 is easily fixed to the instrument body 10 integrally with the cover presser 42. can do. Therefore, workability at the time of assembly and maintenance of the lighting fixture 1 can be improved.

  According to the present embodiment, the cover 41 is made of glass, and the cover 41 and the cover presser are integrally formed by insert molding. According to this configuration, when the emission opening 13 is normally covered with a glass cover, it is necessary to provide waterproofing between the cover 41 and the instrument main body 10 with a water-stopping member such as packing. By integrally molding the resin cover presser 42 on 41, the cover unit 40 can be easily made waterproof. Therefore, the cover unit 40 can be easily attached to the fixture body 10 without interposing a water-stopping member such as packing, and the workability during assembly and maintenance of the lighting fixture 1 can be improved.

  According to the present embodiment, the center portion of the cover 141 is the transparent lens portion 141A, and the light diffusion portion 141B is provided around the lens portion 141A. According to this configuration, the light distribution angle of light from the light source module 12 and the reflecting mirror 14 can be narrowed by the lens unit 141A, and the irradiated surface can be efficiently illuminated. In addition, the light diffusing unit 141B can diffuse the light irradiated to other than the irradiated surface to prevent glare and make the interior of the fixture body 10 difficult to see, thereby improving the design of the lighting fixture 1.

  Further, according to the present embodiment, the lens portion 141 </ b> A includes a plurality of projections and depressions provided on the instrument body 10 side of the cover 141. The lens unit 141A may be a Fresnel lens or a convex lens. According to these configurations, a desired irradiation range can be obtained by the lens portion 141A provided on the cover 141, and the irradiated surface can be efficiently illuminated.

  The above-described embodiment is merely an aspect of the present invention, and can be arbitrarily modified and applied without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the light source module 12 includes a COB type LED as a light source. However, the present invention is not limited thereto, and the light source module 12 may include an SMD type LED as a light source. Moreover, although the instrument main body 10 was set as the structure provided with the one light source module 12, it is not restricted to this, The structure provided with the some light source module 12 may be sufficient.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 10 Appliance main body 11 Housing | casing 12 Light source module 13 Outlet opening 14 Reflecting mirror 40,140 Cover unit 41,141 Cover 42 Cover press 141A Lens part 141B Light-diffusion part

Claims (6)

In a lighting fixture provided with a light-transmitting cover at the exit opening of the fixture body to which the light source module is attached,
A resin cover press is formed on the periphery of the cover,
The cover retainer has an end wall portion provided in the frame portion of the cover, and has a claw portion formed at the tip of a pair of elastic portions extending in the direction of the instrument body on the end wall portion ,
A groove portion into which the end wall portion is fitted is provided on a placement surface on which the inner surface of the cover around the emission opening is placed, and a locking hole that penetrates the placement surface from the front and back in the bottom surface of the groove portion Is formed,
By inserting the claw portion into the locking hole, to secure the cover to the instrument body,
A notch that exposes the claw portion inserted into the locking hole to the side surface of the fixture body is formed at the periphery of the exit opening. The cover is made of glass,
The lighting apparatus according to claim 1, wherein the cover and the cover presser are integrally formed by insert molding. The central part of the cover is a transparent lens part,
The light fixture according to claim 1, wherein a light diffusing unit is provided around the lens unit.   The lighting apparatus according to claim 3, wherein the lens unit includes a plurality of projections and depressions provided on the apparatus body side.   The lighting apparatus according to claim 3, wherein the lens unit is a Fresnel lens.   The lighting apparatus according to claim 3, wherein the lens unit is a convex lens.

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