JP6547955B2 - lighting equipment - Google Patents

Description

  An embodiment of the present invention relates to a luminaire in which a light source unit is mounted on a luminaire body.

  2. Description of the Related Art Conventionally, there is a lighting fixture in which a light source unit is inserted and mounted from an opening provided on the lower surface of a fixture body installed, for example, on a ceiling.

  The light source unit includes a frame mounted around the opening side of the instrument body, a shade attached to the inside of the frame, a reflector provided on the frame to cover the top side of the shade, and the light source unit. A light source or the like attached to the reflector is integrally provided, and the apparatus is configured to be attached to the instrument body by the attachment spring attached to the frame.

  In the light source unit integrated in this manner, the load on the frame and the like mounted on the instrument main body is large, and the frame and the like are easily deformed.

JP, 2014-223713, A

  The problem to be solved by the present invention is to provide a luminaire that can increase the strength of the light source unit.

  The lighting fixture of the embodiment comprises a fixture body and a light source unit. The device body has an opening in the lower surface. The light source unit comprises a frame, a shade, a reflector and a light source. The frame is attached to the peripheral portion on the opening side of the instrument body, and has a pair of wall portions erected to face each other on the inside. The swords are provided on the upper side of the pair of first plate portions disposed on the outside of the pair of wall portions and supported on the frame side, and on the upper side of the pair of first plate portions and the upper side of the opening of the instrument body It has a shade part that covers the A reflector has a pair of 2nd board part arrange | positioned on the outer side of a pair of 1st board parts, and provided in the frame side, and is accommodated in an instrument main body. The light source is provided on the reflector to illuminate the upper surface side of the shade.

  According to the present invention, the strength of the light source unit can be expected to be increased by supporting the shade and the reflector with the predetermined structure on the frame side.

FIG. 2 is a cross-sectional view of a portion of the luminaire in a first direction showing an embodiment; It is sectional drawing of a part of 2nd direction of a lighting fixture same as the above. It is sectional drawing of a 1st direction of a lighting fixture same as the above. It is sectional drawing of a 2nd direction of the same lighting fixture. It is a disassembled perspective view of the instrument main body of a lighting fixture same as the above, and a light source unit. It is a disassembled perspective view of the light source unit of a lighting fixture same as the above.

  Hereinafter, one embodiment will be described with reference to FIGS. 1 to 6.

  As shown in FIGS. 3 to 5, the lighting fixture 10 is, for example, a ceiling embedded and installed in the embedded port 11 a (see FIGS. 1 and 2) formed in the ceiling surface 11 (see FIGS. 1 and 2). It is an embedded lighting fixture.

  The lighting fixture 10 includes a fixture body 12 installed on the ceiling surface 11 and a light source unit 13 detachably mounted on the fixture body 12. A power supply 14, a controller 15 and a terminal block 16 are attached to the instrument body 12.

  The instrument body 12 is formed in a rectangular box shape, and includes the top plate 20, a pair of side plates 21 facing each other in the first direction a along one side of the top plate 20, and the first direction a. It has a pair of side plates 22 opposed to each other in the orthogonal second direction b. A rectangular opening 23 is formed on the lower surface of the tool body 12, and a housing portion 24 for housing the light source unit 13 is formed inside the tool body 12.

  The top plate 20 is provided with a mounting hole 25 for attaching to a bolt suspended from a ceiling structure above the ceiling surface 11 and a wiring hole for drawing a power supply line or the like into the instrument body 12 . The power supply device 14, the control device 15, and the terminal block 16 are attached to the lower surface of the top plate 20.

  On the lower end peripheral portion of the side plates 21 and 22, a flange portion 26 which is bent in a substantially U shape and which is in contact with the ceiling surface 11 around the embedding port 11a is provided in a protruding manner.

  Inside the pair of side plates 21, a plurality of spring receiving brackets 27 for attaching the light source unit 13 are attached.

  Next, the configuration of the light source unit 13 is shown in FIGS. 1 to 6.

  The light source unit 13 includes a frame 30, a shade 31, a reflector 32, a light source 33, a mounting spring 34, and the like, and is integrally formed as a unit.

  The frame 30 is formed in a rectangular frame shape having a rectangular opening 36 at the center, and is mounted on the lower side of the side plates 21 and 22 of the instrument body 12. That is, the frame 30 is attached to the peripheral portion on the opening side of the instrument body 12.

  The frame 30 has a pair of frame portions 37 opposed to each other in the first direction a, and a pair of frame portions 38 opposed to each other in the second direction b. It is connected. Each frame 37, 38 is formed in a substantially U-shaped cross section so as to cover the flange 26 of the instrument body 12.

  Inside the frame portion 37 in the first direction a, a shade support portion 39 for supporting the shade 31 is formed in a folded manner, and a plate portion 40 is erected upward from the shade support portion 39. On the upper surface of the frame portion 38 in the second direction b, a plate portion 41 as a third plate portion protruding upward is provided upright. The plate portions 40 and 41 are also connected in a square frame shape.

  A plurality of mounting brackets 42 for mounting the mounting springs 34 are attached to the plate 40 of the frame 37 in the first direction a.

  Inside the frame portion 38 in the second direction b, a pair of wall portions 43 are erected so as to face each other. The pair of wall portions 43 is formed integrally with the frame 30. The pair of wall portions 43 has an upper end curved along the first direction a corresponding to the shape of the shade 31 and an upper side inclined toward the inside of the opening 36. In addition, the surface of the frame 30 is painted white, and the inner surfaces of the pair of wall portions 43 are formed in a white or mirror reflective surface 43a.

  For the shade 31, for example, a milky white resin material having translucency and light diffusivity is used, and is integrally formed by, for example, an air pressure molding method.

  The shield 31 is a light-emitting surface 46 which is a light emitting surface 45 which is curved along a first direction a (curved direction) and is linearly formed in a second direction b (width direction). The side portions 48, which are a pair of first plate portions 47 provided on both side surfaces in the second direction b (width direction), respectively project outward from both ends of the shade portions 46 and the lower ends of the side portions 48. With a peripheral edge 49 which is

  Then, in the shade 31, the pair of first plate portions 47 (side surface portions 48) is disposed on the outside of the pair of wall portions 43 of the frame 30, and in the first direction a (curved direction) of the shade portion 46. Edges 49 at both ends are supported on the support 39 of the frame 30. The shade portion 46 of the shade 31 assembled to the frame 30 covers the upper side of the opening 23 of the instrument body 12 so that the central area 46 b is recessed inside the instrument body 12 with respect to the end area 46 a of the shade portion 46. It is curved. In addition, although the edge 49 of the both ends of the 2nd direction b (width direction) of the shade part 46 is not supported by the frame 30 side, for example, the edge 49 is mounted in a part of board part 41. It may be made to support by the frame 30 side by providing the part which is carried out.

  Further, the reflector 32 is provided with a reflecting plate 51 provided along the first direction a so that both end sides are bent downward, and a pair of first provided on both side surfaces in the second direction b of the reflecting plate 51. A reflecting plate 53 which is the plate portion 52 of 2 is provided. A rectangular opening 54 is formed on the lower surface of the reflector 32, and a space 55 for accommodating the light source 33 and the shade portion 46 of the shade 31 is formed in the reflector 32.

  The reflecting plate 51 is provided with a plurality of reflecting surfaces 56a, 56b, 56c, 56d, 56e which are bent in correspondence with the curved shape of the shade portion 46 of the shade 31. The central reflective surface 56a is provided horizontally, and the reflective surfaces 56b and 56c on both sides of the central reflective surface 56a are provided in an inclined manner so that the end side descends, and the reflective surface 56c is formed at an angle of 45 °, for example. It is provided inclined. The reflective surfaces 56 d and 56 e constitute the side surface of the reflector 32. At both ends of the reflection plate 51, edge portions 57 that protrude outward are provided.

  At the lower end of the reflection plate 53, an edge 58 projecting in the inward direction of the opening 54 is provided.

  Then, the edge portions 57 and 58 of the reflector 32 are disposed on the edge portion 49 around the shade 31 assembled to the frame 30 with the annular packing 59 interposed. The pair of second plate portions 52 (reflecting plate 53) is disposed outside the pair of first plate portions 47 (side surface portions 48) of the shade 31. The press fitting 60 is disposed inside the plate portion 40 of the frame portion 37, and the spring receiving fitting 27 and the press fitting 60 are fastened and fixed together to the plate portion 40 by screws. The edge portion 57 of the reflection plate 51 is pressed against the frame 30 side through the packing 59 by the press fitting 60. Further, the reflection plate 53 is fixed to the plate portion 41 of the frame portion 38 by a screw. The edge 58 of the reflection plate 53 presses the edge 49 of the shade 31 against the shade support 39 via the packing 59. Therefore, the shield 31 is sandwiched and held between the frame 30 and the reflector 32.

  Further, the light source 33 includes a pair of main light sources 62 and a pair of auxiliary light sources 63.

  The pair of main light sources 62 is provided along the second direction b at positions on both end sides of the reflector 32 in the first direction a. That is, the pair of main light sources 62 is attached to the pair of reflective surfaces 56 c of the reflector 32.

  The main light source 62 emits white light. White light is a white-based illumination light used for general illumination light, and includes, for example, illumination light such as daylight color, daylight white color and bulb color.

  The main light source 62 includes a light emitting module 64, a mounting portion 65 for attaching the light emitting module 64 to the reflector 32, and a light source cover 66 covering the light emitting module 64. The light emitting module 64 includes a substrate 67 and a plurality of light emitting elements 68 mounted on the substrate 67. The light source cover 66 has a light transmitting property and a light diffusing property.

  The main light source 62 faces the end region 46a of the shade 31 over the central region 46b, and emits white light from the end region 46a of the shade 31 over the central region 46b. The luminous flux of one main light source 62 is, for example, about 3000 lm, and the total luminous flux of the two main light sources 62 provided in the lighting apparatus 10 is about 6000 lm.

  The pair of auxiliary light sources 63 is attached at a central position in the reflector 32 along the second direction b. That is, the pair of auxiliary light sources 63 is attached to the reflection surface 56 a of the reflector 32.

  The auxiliary light source 63 emits light of a light color different from white light (hereinafter referred to as color light). The color light includes, for example, the case of any one color such as blue and red, or the case of plural colors such as red, green and blue.

  The auxiliary light source 63 includes a light emitting module 69, a mounting portion 70 for attaching the light emitting module 69 to the reflector 32, and a light source cover 71 covering the light emitting module 69. The light emitting module 69 includes a substrate 72 and a plurality of light emitting elements 73 mounted on the substrate 72. The light source cover 71 has a light transmitting property and a light diffusing property.

  Then, the auxiliary light source 63 faces the central region 46 b of the shade 31 and irradiates the central region 46 b of the shade 31 with color light. The light flux of the auxiliary light source 63 is, for example, about 270 lm when the light of the auxiliary light source 63 is blue light.

  In addition, in order that the lighting fixture 10 maintains the function of the main illumination by the white light from the main light source 62, and suppresses that the space is discolored by the color light of the auxiliary light source 63, the light flux of the auxiliary light source 63 is one. The light flux is preferably smaller than the luminous flux of the main light source 62, for example, 1/5 or less, and further preferably 1/7 or less.

  Further, the coil portion at the center of the mounting spring 34 is mounted to the mounting bracket 42, and both ends of the substantially L-shape projecting from the coil portion are mounted to the spring-receiving bracket 27 of the instrument body 12.

  Next, the power supply device 14 includes a main power supply device 76 for a main light source and an auxiliary power supply device 77 for an auxiliary light source. Each of the power supply devices 76 and 77 receives an AC power supply, converts the AC power supply into a predetermined DC power supply, and supplies the light source 62 and 63 with control by the control device 15.

  The control device 15 inputs a light adjustment signal and the like from the host device, and controls the power supply devices 76 and 77.

  Then, the lighting fixture 10 is installed on the ceiling surface 11.

  The instrument body 12 is inserted into the embedding port 11 a of the ceiling surface 11, and the instrument body 12 is attached to the bolt hanging from the ceiling structure. At this time, power supply lines and signal lines are drawn into the instrument body 12 and connected to the terminal block 16 respectively.

  The attachment spring 34 on one side of the light source unit 13 is hooked on the spring receiving bracket 27 on one side of the instrument body 12 so that the light source unit 13 is suspended from the instrument body 12 and pulled out from the reflector 32 of the light source unit 13 in advance. The connector of the wiring which is being connected and the connector of the wiring which is drawn out from the power supply device 14 of the instrument body 12 are connected.

  The attachment springs 34 on the other side of the light source unit 13 are respectively hooked on the spring-receiving brackets 27 on the other side of the instrument body 12 to push the light source unit 13 toward the instrument body 12. The unit 13 is pulled up and attached to the instrument body 12.

  In the attached state of the light source unit 13, the reflector 32 is accommodated in the accommodation portion 24 of the instrument body 12, the frame 30 covers the flange portion 26 of the instrument body 12, and the shade portion 46 of the shade 31 is an opening of the instrument body 12. Cover the upper side of 23

  Then, the lighting fixture 10 lights the main light source 62 and the auxiliary light source 63 by supplying lighting power to the main light source 62 and the auxiliary light source 63 from the main power supply 76 and the auxiliary power supply 77.

  The white light from the main light source 62 is irradiated from the end area 46a of the shade 31 to the central area 46b, the color light from the auxiliary light source 63 is irradiated to the central area 46b of the shade 31, and the entire shade 31 is illuminated.

  In this case, the end region 46a of the shade 31 glows white by white light, and the central region 46b of the shade 31 glows blue, for example, by color light.

  White light transmitted through the sword 31 is irradiated to the illumination space. In this case, the main light source 62 is provided on the end side of the tool main body 12 and the optical axis of the main light source 62 is inclined toward the center of the lighting device 10, thereby providing the embedded lighting device 10. However, white light can be irradiated to a wide light distribution angle area.

  The color light irradiated to the central area 46b of the sword 31 is a light beam that causes the central area 46b of the shade 31 to be dyed with color light, so the color light transmitted through the central area 46b of the shade 31 is irradiated to the illumination space The amount of light is less than white light.

  For this reason, the illumination space is mainly irradiated with white light, which is an illumination environment suitable for reading and working, for example.

  Further, although the central region 46 b of the shade 31 is irradiated with both the white light from the main light source 62 and the color light from the auxiliary light source 63, the light amount of the white light is from the end region 46 a of the shade 31 to the central region The amount of color light gradually increases as going from the periphery of the central region 46 b of the shade 31 to the center, as it gradually decreases toward the 46 b. Therefore, between the end area 46a of the shade 31 and the central area 46b, a gradation area in which the color gradually changes between white and blue is formed. Therefore, when looking up the lighting fixture 10, the color of the shade 31 appears to naturally change through the gradation area, and the light effect can be enhanced.

  Even if the color light of the auxiliary light source 63 is blue, the central region 46b of the sword 31 becomes blue near the sky by mixing the blue light and the white light. In this case, a person who looks up at the lighting apparatus 10 is easily associated with the sky, and a sense of openness or a sense of relaxation is easily obtained.

  In addition, a part of the light emitted from the main light source 62 and the auxiliary light source 63 to the shade 31 is reflected to be directed to the reflection surfaces 56a to 56e of the reflector 32 and reflected by the reflection surfaces 56a to 56e to be returned to the shade 31 again. Since the light is irradiated, it is possible to enhance the light extraction efficiency which is transmitted through the shade 31 and taken out to the illumination space.

  Furthermore, the white light from the main light source 62 is reflected by the reflecting surface 56b and directed toward the central region 46b of the shade 31 and the blue light from the auxiliary light source 63 is reflected by the reflecting surface 56b and the end region 46a of the shade 31 Head in the direction of That is, the white light and the blue light are respectively directly or indirectly incident on the reflection surface 56 b between the main light source 62 and the auxiliary light source 63 to be reflected. Therefore, the white light and the blue light reflected on the reflection surface 56b are irradiated between the central area 46b and the end area 46a of the shade 31 so that the chromaticity of the shade 31 changes naturally, and natural gradation with no sense of incongruity. Can be presented.

  In addition, a part of the light transmitted through the shade 31 is reflected by the reflection surface 43 a of the wall 43 of the frame 30 and is irradiated to the illumination space. Therefore, the reflection surface 43a of the wall 43 is colored in a color continuous to the color of the end area 46a and the central area 46b of the shade 31 and does not have a mere planar impression, and a sense of depth and openness can be obtained. it can.

  Therefore, in the lighting fixture 10, the light effect can be obtained while maintaining the function of the main illumination by the white light.

  Furthermore, since the central area 46b of the shade 31 is curved so as to be recessed inside the instrument body 12, it is easy to obtain a sense of depth or an open feeling such that the central area 46b of the shade 31 lit by colored light is far The effect of presentation can be improved.

  Further, in the light source unit 13, the wall portion 43 is provided on the frame 30, and the first plate portion 47 of the shade 31 is disposed on the outside of the wall portion 43, and the light is reflected on the outside of the first plate portion 47. By arranging the second plate portion 52 of the body 32, since these are arranged in a triple overlapping manner, even when an external force is applied to the frame 30 in the direction in which the frame 30 is deformed, the external force is applied to this external force The strength can be increased. Moreover, by covering the overlapping portions with the pair of wall portions 43 of the frame 30, the strength of the light source unit 13 can be increased without impairing the appearance and without using a special reinforcing member.

  Further, there are spaces on both sides of the light source unit 13 corresponding to the bending direction of the shade 31 as compared to both sides of the light source unit 13 corresponding to the direction orthogonal to the bending direction of the shade 31. Therefore, by providing the attachment springs 34 on both sides of the light source unit 13 corresponding to the bending direction of the shade 31, the workability at the time of attaching and detaching the attachment spring 34 to the spring bracket 27 of the instrument main body 12 can be improved.

  Further, while both ends of the shade 31 in the direction parallel to the pair of first plate portions 47 of the shade 31 can be held between the frame 30 and the reflector 32, the pair of wall portions of the frame 30 is The pair of first plate portions 47 of the shade 31 disposed outside 43 is difficult to support on the frame 30, but the first plate portions 47 are reflected by the reflector 32 on the side of the frame 30. Can be held firmly to the frame 30.

  Further, the wall 43 of the frame 30 is inclined in the inward direction of the opening 36. This is because the first plate portion 47 has an inclination for demolding at the time of molding of the shade 31, and the wall portion of the frame 30 corresponding to the inclination of the first plate portion 47. 43 is also inclined. By the wall portion 43 of the frame 30 being inclined inward of the opening portion 36, the reflection effect of the downward light is improved, and the light of the shade 31 and the light reflected by the wall portion 43 are continuous. Continuity that seems to be present can also be improved.

  When the auxiliary light source 63 is turned off and only the main light source 62 is turned on, the entire shade 31 can be illuminated by white light. Also, the main light source 62 can be turned off and only the auxiliary light source 63 can be turned on.

  The auxiliary light source 63 is provided with the red, green and blue light emitting elements 73 to emit color light, for example, to emit color light corresponding to the change of the sky color at each time, for example, blue sky, evening May reproduce the sunset sky on the light emitting surface 45.

  Also, the shade 31 may be formed in a spherical shape that is curved toward the periphery with the center at the top. In this case, the periphery of the shade 31 may be either square or circular. Furthermore, the main light source 62 may be provided on the entire circumferential region of the side surface of the instrument body 12 so that the shade 31 can be irradiated with white light from the outer diameter side of the shade 31.

  In addition, the shield 31 may be flat, or may be curved so that the central region 46 b protrudes from the instrument body 12.

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

10 Lighting fixtures
12 Instrument body
13 light source unit
23 Opening
30 frame
31 Cade
32 reflector
33 light source
34 Mounting spring
43 wall
46 Cade section
47 1st board part
52 Second plate

Claims (3)

An instrument body having an opening in the lower surface;
A frame mounted on the opening side peripheral portion of the instrument body and having a pair of wall portions erected to face each other on the inner side, and arranged on the outside of the pair of wall portions, the frame side A pair of first plate portions supported on the upper side and a shade portion provided on the upper side of the pair of first plate portions to cover the upper side of the opening of the device body, and the pair of first plate portions A reflector provided on the outer side of the plate 1 and provided on the frame side, the reflector housed in the instrument main body, and the reflector; A light source unit comprising a light source for emitting light to the upper surface side;
A luminaire characterized by comprising. The shade is curved so that a central portion of the shade portion is recessed into the instrument body along a direction parallel to the pair of wall portions.
The illumination according to claim 1, wherein the light source unit is provided on both sides of the light source unit corresponding to the bending direction of the shade portion, and a mounting spring for attaching the light source unit to the instrument body. Appliance. In the shade, both ends of the shade portion in a direction parallel to the pair of first plate portions are sandwiched between the frame and the reflector, and the first plate portion reflects the reflection. The lighting fixture according to claim 1 or 2, wherein the frame is pressed by the body toward the frame.

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