JP5333910B2 - Luminescent panel and lighting fixture - Google Patents

Description

   The present invention relates to a light emitting panel and a lighting fixture using a light emitting element such as a light emitting diode as a light source.

In recent years, light-emitting diodes have been adopted and commercialized as light sources for relatively large lighting fixtures such as those used in offices and general lighting due to their improved luminous efficiency. For example, Patent Document 1 discloses a lighting device using a square LED lighting panel provided with light emitting diodes and arranged in a checkered pattern on a ceiling surface. Further, Patent Document 2 includes a main body portion that is embedded and attached to a ceiling surface, and is supported by a shaft on one side edge of a lower surface opening of the main body portion so as to be openable and closable with respect to the main body portion, and has a large number of white light emitting diodes. A lighting fixture having a panel-like light source part is shown. Further, Patent Document 3 discloses a display device in which a large number of display units each having a light emitting diode as a light source are arranged on the ceiling surface of an arcade.
JP 2008-257903 A JP 2002-117705 A JP 2001-5409 A

  On the other hand, in this type of lighting fixture, the body is configured in a thin panel by adopting an LED as a light source to reduce the weight, but at the same time, since a large number of light emitting diodes are used, each light emitting diode and power supply unit A large number of lead wires that connect to each other are flooded, and how efficiently these lead wires are wired to achieve miniaturization, while preventing interference with live parts of the light-emitting diode and making disconnection accidents less likely Is an important issue. However, the wiring process in this type of lighting fixture is, for example, in a display device using a light emitting diode disclosed in Patent Document 3, in paragraph [0007], “... vertical electric wire and horizontal electric wire for power supply” Are stretched in a grid in a state of being insulated from each other, and the lead wires of the light-emitting diodes are specially connected at the intersection of the vertical and horizontal wires. For this reason, wires and light-emitting diode leads wired in large numbers in the vertical and horizontal directions are exposed and arranged on the back side of the display unit. There is a risk of hitting other things, or in the unlikely event that they break. Moreover, in order to achieve downsizing, it is a configuration that is difficult to realize because electric wires are exposed from the unit. For this reason, in particular, despite the fact that LEDs are used as the light source and the size and weight have been reduced, there has been no improvement in terms of workability, so further simplification of construction is required. .

  The present invention has been made in order to solve the above-described problems, and a light-emitting panel and a lighting fixture that can facilitate workability on an installation part such as a ceiling by effectively performing wiring processing. Is to provide.

The invention of the light-emitting panel according to claim 1 is a substrate having a plurality of light-emitting elements and formed in a substantially flat plate shape; and an inclined reflecting surface that covers the periphery of the light-emitting elements, thereby forming a cavity on the back surface. A plurality of substantially flat reflectors that are formed and arranged to form a substantially flat plate on the substrate; and are arranged on the substrate located in a cavity formed at the joint of each adjacent reflector, And a plurality of electrical connection portions arranged to face each other and connected to the light emitting element; and lead wires connected to the electrical connection portions and accommodated in the cavity of the reflector. To do.

According to the present invention, a plurality of electrical connection portions that are disposed in a base located in a cavity formed at a joint between adjacent reflectors and that are disposed to face each other and are connected to a light emitting element. In addition, the lead wire connected to the electrical connection portion and accommodated in the cavity of the reflector can effectively perform the wiring process, and can facilitate the workability on the installation portion such as the ceiling.

  In the present invention, the light-emitting panel is preferably used for relatively large lighting fixtures such as general homes and offices that perform general lighting from the ceiling, such as facilities and business use, but is used for small lighting fixtures. Also good. In addition, the present invention is preferably used for a lighting fixture that is installed by being embedded in an installation surface such as a ceiling, but may be used for a lighting fixture that is installed directly on the ceiling. Good.

  The light-emitting element is preferably a light-emitting element using a semiconductor as a light-emitting source, such as a light-emitting diode, an organic EL, or a semiconductor laser. An incandescent bulb such as a small halogen lamp or a cold fluorescent lamp of a cold cathode type may be used. The required number of light emitting elements is selected according to the purpose of illumination. For example, about 16 element groups may be formed, and one group may form a light emitting panel. A larger light emitting panel may be configured by using a plurality of, for example, four light emitting panels. Moreover, the light emitting element may be comprised by one piece. The light emitting element is preferably configured to emit white light, but may be configured to be red, blue, green, or a combination of various colors depending on the use of the lighting fixture.

  The substrate is for arranging the above-described light-emitting elements or light-emitting element groups, and the shape thereof may be a rectangular shape such as a square or a rectangle, or a light-emitting portion having a rectangular long line shape. In this case, however, it may be a polygonal shape such as a hexagonal shape or an octagonal shape, or a light emitting portion such as a circular shape or an elliptical shape, and all shapes for obtaining a desired light distribution characteristic are acceptable. Is done.

  The substrate is allowed to be composed of a substrate made of a metal or synthetic resin with good thermal conductivity such as a steel plate, aluminum, copper plate, etc., and a circuit substrate for disposing the light emitting element. The circuit board is allowed to be composed of a metal such as aluminum or copper, or a non-metallic member such as a glass epoxy material, a paper phenol material, or a glass composite. Further, if it is advantageous in terms of cost, it may be made of ceramics. Furthermore, the substrate may be constituted only by a circuit board. A wiring pattern is formed on the circuit board, and for example, a light-emitting diode chip is preferably mounted on the wiring pattern, but means for configuring and mounting the circuit board is specific. It is not limited.

  The reflector is optically designed to obtain a desired light distribution, and the shape of the reflector is around the light emitting element in order to obtain a light distribution that is rotationally symmetric about the center of the light emitting element. In order to form an inclined reflecting surface to cover, for example, the appearance is a pyramid shape and the cross section is a rectangular “mortar-shaped” concave portion, and a substantially triangular cavity is formed by the back surface of the inclined mortar. It is preferable, but it may be a mortar-shaped concave part having a circular cross section, and a hollow part may be formed on the back surface of a concave mortar that is curved and inclined, and has a specified shape It is not limited to.

  The material of the reflector is formed integrally with a synthetic resin having weather resistance, heat resistance and electrical insulation, for example, PBT (polybutylene terephthalate), or a synthetic resin such as acrylic or ABS in consideration of light reflection performance. May be. Moreover, even if the surface is painted white, a metal such as aluminum or silver may be deposited or plated to be processed into a mirror surface or a half mirror surface. Further, it may be made of a metal such as aluminum or copper, and white coating, vapor deposition, plating, or the like may be performed similarly to the above synthetic resin.

  The reflector may be provided corresponding to each light emitting element or each light emitting element group according to the number of light emitting elements. The plurality of reflectors provided individually or in groups may be configured so as to obtain the same light distribution characteristics or may be combined with those having different light distribution characteristics. Further, one or a plurality of light emitting elements or a common reflector may be provided for the light emitting element group. The reflector is arranged so as to be superposed on the substrate and unitized to form a light emitting part, but the reflector is superposed on the base by being modularized together with the light emitting element and the base. The light emitting unit may be arranged in such a manner.

  The electrical connection portion connected to the light emitting element is for electrically connecting a lead wire for supplying power to the light emitting element disposed on the base, and the connection with the light emitting element is formed on the base Although it is preferable to connect the wiring pattern using a connector, the electric wire may be directly connected to the wiring pattern by means such as soldering or screwing. Furthermore, an electric wire may be directly connected to the light emitting element without using a wiring pattern.

  The lead wire is an electric wire for connecting the electrical connection portion and the power source portion or the adjacent light emitting portion, etc. The connection to the electrical connection portion is preferably connected to the connector described above, but directly to the wiring pattern of the substrate. It may be connected by means such as soldering or screwing. The lead wire connected to the electrical connection portion is accommodated in the cavity formed on the back surface by forming an inclined reflective surface covering the periphery of the light emitting element, but even if all the lead wires are completely accommodated Alternatively, it may be a part of which is exposed from the cavity, and may be one that is substantially accommodated to the extent that it does not get in the way of construction.

  For example, the power supply unit is allowed to be configured by a lighting device that converts an AC voltage of 100 V into a DC voltage of 24 V and supplies the converted voltage to a light emitting element such as a light emitting diode. The power supply unit is preferably built in the lighting fixture, but may be separately installed on the ceiling or the like. Moreover, you may have a light control function.

  In the present invention, the cavity formed in the joint of each reflector is preferably formed by combining the cavity formed in each reflector to form a wider cavity. It may be formed only of the hollow portion. The joints are preferably joined together without any gaps, but some gaps may be formed within the allowable range in appearance.

The invention of the lighting fixture according to claim 2 comprises the light-emitting panel according to claim 1, a fixture main body provided with the light-emitting panel, and a lighting device for lighting the light-emitting panel. . ADVANTAGE OF THE INVENTION According to this invention, wiring processing can be performed effectively and the lighting fixture which can make workability to to-be-installed parts, such as a ceiling, easy can be provided.

According to the first aspect of the present invention, the base is provided with a plurality of light emitting elements, and the plurality of reflectors are provided on the base so as to form a substantially flat plate, whereby a larger light emitting panel can be configured. In addition, a plurality of electrical connection portions are located in a cavity portion formed at a joint of adjacent reflectors and are disposed so as to face each other, and lead wires are accommodated in the cavity portion, so that wiring processing is performed. Therefore, it is possible to provide a light-emitting panel capable of effectively performing workability on an installation portion such as a ceiling.

According to the second aspect of the present invention, it is possible to provide a lighting apparatus capable of effectively performing the wiring process and facilitating the workability to the installation part such as the ceiling.

  Hereinafter, embodiments of a light-emitting panel and a lighting fixture according to the present invention will be described with reference to the drawings.

  As shown in FIG. 1, in this embodiment, a flat-panel shaped lighting fixture 10 is configured using a flat and rectangular light emitting panel A, and in this embodiment a square light emitting panel A. The panel A includes a base body 11a on which the light emitting element 11 is disposed, a reflector 11c that covers the periphery of the light emitting element and is disposed on the base body, an electrical connection portion 40 that is disposed on the base body and connected to the light emitting element, and is connected to the electrical connection portion. The lead wire 41 is made up of.

  The light emitting element 11 includes a light emitting diode (hereinafter referred to as “LED”) and a phosphor. In this embodiment, it is composed of a blue LED chip and a yellow phosphor excited by the LED chip, and emits white light with high brightness and high output. The LED 11 configured as described above is disposed on a base body 11a having a square shape. The base body 11a is composed of four square circuit boards 11a1, a square heat sink 11j constituting a board of a size that supports the four circuit boards, and a square electric insulation interposed between the circuit board and the heat sink. It consists of a plate 11a2.

  Each of the four circuit boards 11a1 is a member for disposing the LED chip 11, and is formed of, for example, a glass epoxy or an aluminum substrate and is formed in a flat plate shape forming a square. A wiring pattern made of copper foil is formed on the back surface of the circuit board, and LED chips are arranged on the surface along the wiring pattern. Each LED chip 11 is arranged in a matrix, with a total of 16 LED chips, 4 vertically and 4 horizontally. FIG. 1A shows a combination of four light emitting panels A having the above configuration.

  The square heat sink 11j constituting the substrate is made of a steel plate having good thermal conductivity, a metal such as aluminum, or a steel plate in this embodiment, and the four square circuit boards 11a1 configured as described above form a flat plate shape. As shown in FIG. 2 (b), the rising pieces 11k are integrally formed on the opposing sides. The electrical insulating plate 11a2 is made of a heat-resistant and electrically insulating silicone resin, epoxy resin, or the like, and is made of a square insulating sheet having the same dimensions as the heat radiating plate 11j.

  Each of the four circuit boards 11a1 is provided with a reflector 11c on the surface side where the LEDs 11 are disposed. That is, each of the four reflectors 11c is similarly optically designed so as to obtain a desired light distribution, and is a synthetic resin having weather resistance, heat resistance and electrical insulation. PBT (polybutylene terephthalate) is formed as a square member having the same dimensions as the circuit board 11a1. Further, the appearance of the surface has a pyramid shape, and as shown in FIG. 1, a concave portion 11d having a square cross section is formed, and each of the LEDs 11 arranged as described above is formed at the center of the opening 11e at the bottom. It is located so as to surround the periphery of the LED chip.

  Each reflector 11c is formed with a square opening 11f for radiating light from the LED 11 outward, and 16 individual reflectors corresponding to each LED 11 are integrally molded with PBT by PBT. Thus, a hollow portion 11g having a substantially triangular cross section is formed in the valley of the reflector 11c that is continuous in a pyramid shape by the back surface of the inclined mortar. Further, in order to obtain a light distribution that is rotationally symmetric with respect to the center of the LED 11, the reflector 11 c configures the inclined inner surface of the “mortar-shaped” concave portion 11 d that forms a square as the reflecting surface 11 h. The reflecting surface 11h covers the periphery of each LED 11 and is configured as a reflecting surface that is expanded and inclined toward the square opening 11f. As a result, a hollow portion 11g is inevitably formed on the inclined back surface. This hollow portion is formed long along one side of the reflector 11c and the circuit board 11a1. Further, the reflective surface may be mirror-finished by vapor deposition of aluminum or silver. Each of the reflectors 11c configured as described above is positioned so that each LED 11 is arranged at the center of the recess 11d, and arranged so that the bottom of the square reflector is superimposed on the surface of each square circuit board 11a1. The light emitting panel A is configured.

  The light-emitting panel A composed of the square circuit board 11a having the 16 LEDs 11 configured as described above and the square reflector 11c having 16 pyramid-shaped reflecting surfaces 11h is larger than four. A square light-emitting panel A is formed (FIG. 1A). That is, the square base 11a and the reflectors 11c are arranged on the heat radiating plate 11j serving as the above-described substrate, two in the vertical direction and two in the horizontal direction.

  Four circuit boards 11a1 are placed on the heat radiating plate 11j while being positioned by the rising pieces 11k, and four reflectors 11c are placed on the circuit board 11a1 from the back surface of the heat radiating board 11j. It is fixed with screws etc. together with 11a1. In addition, you may fix with the adhesive agent which consists of a silicone resin or an epoxy resin and which has heat resistance and electrical insulation. As a result, a large light-emitting panel A having a flat square shape with LEDs as light sources is formed. An electrical insulating plate 11a2 made of a square insulating sheet is interposed between the back surface side of the circuit board 11a1 and the heat radiating plate 11j so as to electrically insulate the wiring pattern of the circuit board 11a1 and the heat radiating plate 11j made of a steel plate.

  Further, each of the 16 LEDs 11 is connected in series by a wiring pattern on the back surface side, and further, 16 × 4 = 64 LEDs respectively disposed on the four circuit boards 11a1 are respectively connected by lead wires 41. It is connected in series and effectively subjected to wiring processing, and is connected to the power supply unit 17 and the adjacent light emitting panel A.

  That is, each of the 16 LEDs 11 is connected in series by a wiring pattern, and input terminals are formed at both ends thereof. The electrical connection portion 40 of the present invention is connected to this input terminal. In this embodiment, the electrical connection portion is constituted by a small connector 40, and the output side terminal of the connector is connected to the input terminal of the wiring pattern. This wiring connection is made to a total of 64 LEDs as follows, and all the LEDs 11 are connected in series. First, the structure which connects the connector 40 to the circuit board 11a1 which arrange | positioned 16 LED11 is demonstrated. Sixteen LEDs 11 are connected in series by a wiring pattern, and a connector 40 is connected to the input terminal, and the LED 11 is mounted and fixed on the surface of the circuit board 11a1 so as to be detachable.

  The connector 40 is disposed in the cavity 11g of the reflector 11c and is disposed on the circuit board 11a1 so as to be positioned between the adjacent LEDs 11 so as to face outward. At this time, the wiring work can be further facilitated by positioning the connection terminal portion 40a of the connector 40 so as to face outward. The 16 LEDs 11 arranged on the remaining three circuit boards 11a1 are also connected in series, and the connector 40 is connected in the same manner as described above. As described above, the 16 LEDs 11 on the total of four circuit boards 11a1 are also connected in series by the lead wires 41, and all the 64 LEDs in total are connected in series by the lead wires.

  The lead wire 41 in which the LEDs 11 are connected in series as described above is effectively subjected to the wiring process as follows. That is, as shown in FIG. 1, four circuit boards 11a1 are arranged on the heat radiating plate 11j with their orientations selected so that the connectors 40 of each circuit board face each other (FIG. 1 (a)). . In this state, each connector 40 mounted on each circuit board 11a1 faces the joint P of each circuit board, and the connection terminal portions 40a are all arranged in the same facing direction. The lead wire 41 is inserted and connected to the connection terminal portion 40a in this state. At this time, since the connection terminal portions 40a of the connector 40 are all in the same direction, the connection work can be easily concentrated. Lead wires connected to each connector 40 are routed along the joint P of the circuit board. At this time, since the connection terminal portions 40a of the connector 40 all face outward in the same direction, the lead wires 41 connected to the connector 40 are connected at positions where they do not interfere with the LEDs 11 and interfere with the LEDs 11. It can be moved to a position that does not.

  Next, the four reflectors 11c are arranged so as to be superposed on each circuit board 11a1 so as to form a substantially flat plate shape. As a result, the joints Q of the respective reflectors 11c are combined with the respective hollow portions 11g, and a hollow portion 11G having a substantially triangular shape is formed long along one side of the reflector 11c and the circuit board 11a. As a result, each connector 40 to which the lead wire 41 is connected is covered with the cavity portion 11g, and the lead wire 41 laid over the joint of the circuit board 11a is accommodated along the long cavity portion 11g. Except for the lead portion 41a of the lead wire 41, substantially the entire portion connected to the connector 40 is accommodated in the cavity portion 11G and is accommodated without being exposed to the outside and protruding from the circuit board 11a1. Thereby, since the lead wire 41 is effectively processed with respect to the light emitting panel A, and the lead wire overflows and jumps out of necessity, it does not get in the way of construction and the workability can be improved. .

  Note that one end 41a of the lead wire drawn out from the cavity portion 11G is led out to the cavity portion 11g of the adjacent reflector 11c and is fed to another connector. The lead wire that has been routed is also accommodated in a cavity of an adjacent reflector that is configured in the same manner as described above. The other end 41b of the lead wire drawn out to the other is connected to an output terminal of the power supply unit 17 described later, and power is supplied to all 64 LEDs 11 connected in series from the power supply unit 17 through the lead wire 41b. Supplied.

  The light-emitting panel A configured as described above is used in a ceiling-embedded panel-type lighting fixture that is flat and rectangular in a ceiling-embedded shape, and in this embodiment is a square. The lighting fixture 10 includes the light-emitting panel A configured as described above, a fixture body B on which the light-emitting panel is disposed, and a power supply unit 17 that lights the light-emitting panel.

  First, as shown in FIGS. 2 (a) and 4 (a), the main body frame 14 is made of a metal having a good thermal conductivity, in this embodiment, a square frame 14a made of white painted aluminum. Configure. The size of the frame is such that the square light-emitting panel A having the above-described configuration is arranged and supported on the inner peripheral side in the frame, and the light-emitting panel A is inserted into the frame together with the light-emitting panel A. The fixture body B of the lighting fixture that forms a square is formed. Further, the main body frame 14 is integrally formed on all four sides with a collar portion 14b serving as a decorative edge projecting outward on the outer periphery of the frame body 14a. A locking piece 14d that protrudes like a hook on one side of the flange 14b is formed integrally and long along one side of the frame 14a.

  In FIG. 2A, reference numeral 18 denotes a light-transmitting light having a thin square made of a translucent milky white translucent synthetic resin provided on the front surface of the light-emitting panel A so as to cover the LED 11 and the reflector 11c. A plate 19 is a square light control body configured in a lattice shape. The light transmitting plate 18 and the light control body 19 are inserted into the frame body 14a of the main body frame 14 together with the square light emitting panel A, and the light control body 19, the light transmission plate 18, Further, the light emitting panels A are sequentially stacked and pressed and supported by a support member 30 made of a steel wire 30a serving as a pressing member. The support member 30 is fixed at a predetermined position by positioning means 32 including three small holes formed on the back surface side of the heat radiating plate 11j. As shown in FIG. 3B, the three small holes 32 are formed by penetrating the base body 11a in the cavity 11g of the reflector 11c described above. Thereby, it is prevented that the wire 30a interferes with LED11.

  Further, the main body frame 14 configured as described above has an engaging portion 14e that engages and supports the main body frame 14 with a support frame 16 to be described later, on a side facing the side on which the locking piece portion 14d is formed. Form. As shown in FIGS. 4B and 4C, the engaging portion includes a stopper 14e1 and a bearing portion 14e2, and the stopper includes a screw head 14e3 having a minus groove formed at one end and a shaft at an intermediate portion of the shaft portion. A short convex portion 14e4 projecting in a direction perpendicular to the direction and a long stopper piece 14e5 are formed of a metal rod integrally formed. In the bearing portion 14e2, a cylindrical bearing portion 14e2 is integrally formed on the side plate 14k of the main body frame 14, and a small hole 14e6 into which the convex portion 14e4 of the stopper is fitted is formed in the cylindrical portion constituting the bearing portion.

  The metal rod of the stopper 14e1 configured as described above is inserted into the bearing portion 14e2 through the through hole 14m formed in the flange portion 14b of the main body frame 14 so as to be rotatable. Thereby, by rotating the screw head 14e3, the stopper piece 14e5 protrudes from the side surface 14k of the main body frame 14, and can be engaged with the inner flange portion 16b of the support frame 16 described later from the inner surface. At this time, the convex portion 14e4 of the stopper 14e1 rotates simultaneously with the stopper piece 14e5 protruding and engaged. By this rotation, the bearing portion 14e2 is bent utilizing the elasticity of the resin, and the convex portion 14e4 is fitted into the small hole 14e6 of the cylindrical body, so that the rotation of the metal rod is restricted and locked.

  Next, the support frame 16 is installed on a part to be installed such as a ceiling and is a metal having a good thermal conductivity. In this embodiment, the square frame 16a is made of white painted aluminum like the main body frame 14. Are integrally formed. The size of the frame body 16a is set to a size that allows the square body frame 14 having the above-described configuration to be disposed inside the frame so as to be included.

  The support frame 16 is integrally formed with a flange portion 16b protruding inward on the inner periphery of the frame body 16a, and a step portion 16c (FIG. 5 (a)) is integrated with a tip portion of the flange portion 16b. A locking receiving portion 16d having a substantially U-shaped cross section that opens upward in the drawing is integrally formed along the side of the frame body 16a. The latch receiving portions 16d are formed on each side of the square support frame 16, that is, on all four sides. Furthermore, the flange part 16e used as the decoration edge which protrudes toward the outer side of the frame 16a is integrally formed.

  The locking piece portion 14d of the main body frame 14 described above is fitted into the groove of the locking receiving portion 16d, and the main body frame 14 is fitted to one side of the support frame 16 by the locking piece portion 14d and the locking receiving portion 16d. The action as the hinge portion C when turning, that is, opening and closing (FIG. 5 (a)), and prevention of disengagement that prevents the main body frame 14 from being detached from the support frame 16 when it is opened. The action (FIG. 5B) is performed. Since the latch receiving portions 16d are formed on the four sides of the square support frame 16, the latch piece portions 14d of the square main body frame 14 are latched to the latch receiving portions on any side. Can do. Further, a receiving piece 16g made of a steel plate is fixed to a side plate 16f located on the opposite side of the support frame 16, and a screw hole 16h is formed in the central portion of the receiving piece (FIG. 6B).

  The power supply unit is composed of, for example, a lighting device 17 composed of a lighting circuit (not shown) that converts an AC voltage of 100 V into a DC voltage of 24 V and supplies the converted voltage to the LED 11, and is composed of a steel plate as shown in FIG. A lighting circuit is built in the case member 17a made of a long rectangular parallelepiped. Support holes are formed at both ends of the case member 17a from the side plate 17c to the upper surface plate 17d. This support hole is formed with a large horizontally long guide hole 17e in the side plate 17c, and a vertically long slot 17f is formed in the upper surface plate 17d in succession to the guide hole. The guide hole 17e can be inserted with a nut 21 of a suspension bolt 20, which will be described later, and the long hole 17f is formed with a dimension that allows the bolt 20 to be inserted but not the nut 21. Further, screw holes 17g for attachment are formed on both side plates 17c of the case member 17a so as to be positioned below the guide holes 17e.

  The case member 17a in which the lighting device is incorporated is arranged so as to be supported by the support frame 16. That is, the case member 17a is arranged so as to straddle the side plates 16f located on the opposite sides of the support frame 16, and the screw holes 16h of the receiving pieces 16g fixed to both the side plates 16f are placed on both sides of the case member 17a. The screw holes 17g of the plate 17c are matched so that they can be fixed with screws.

  Further, from one side plate 17c of the case member 17a, a terminal portion 17j connected to the output end of the lighting circuit is drawn out and attached to the tip of the panel side lead wire 41b connected to the input terminal of the light emitting panel A. The connector 12c is connected (FIG. 7 (b)). In this case, when the case member 17 a is attached to the support frame 16, the side plate 17 c from which the terminal portion 17 j is pulled out, in other words, the terminal portion 17 j faces the vicinity of the groove-shaped locking receiving portion 16 d of the support frame 16. Position it so that it is attached.

  The lighting fixture 10 composed of the light-emitting panel A, the main body frame 14, the support frame 16, and the lighting device 17 configured as described above is installed and used on the ceiling surface X that is an installation portion as follows (FIG. 7). Note that a square opening h having a size into which the support frame 16 can be inserted is formed in the ceiling X in advance, and two suspension bolts 20 are installed on the support material X1 on the back of the ceiling. The two suspension bolts are installed at intervals roughly matching the distance between the support holes formed at both ends of the case member 17a of the lighting device 17, and two nuts 21 and 21 are attached to each of the suspension bolts ( FIG. 6 (a)).

  First, the lighting device 17 is supported in advance on the support frame 16 as shown in FIG. Next, as shown in FIG. 7A, the support frame 16 supporting the case member 17a of the lighting device is inserted into the ceiling through the opening h of the ceiling X with the case member 17a facing upward, and the case member 17a The nut 21 of the left suspension bolt 20 is inserted into one of the support holes, in this embodiment, the guide hole 17e of the left support hole in FIG. At this time, the lower nut 21 of the two nuts 21 is inserted into the guide hole 17e, and the bolt 20 is inserted into the elongated hole 17f. The upper nut 21 faces the upper surface plate 17d of the case member 17a. Similarly, the right suspension bolt 20 is bent, the lower nut 21 is inserted into the guide hole 17e, and the bolt 20 is further inserted through the long hole 17f.

  In this state, the support frame 16 is aligned with the opening h. At this time, the bolt 20 is slid left and right within the elongated hole 17f of the case member 17a so that the knurled surface around the opening h is hidden by the flange portion 16e serving as a decorative edge of the support frame 16. In this state, the mounting position of the support frame 16 with respect to the ceiling X is determined. In this state, the two nuts 21 of each suspension bolt 20 are tightened to fix the case member 17a to the two suspension bolts 20. Thereby, the support frame 16 is fixed to the support material X1 on the back of the ceiling via the case member 17a of the lighting device (FIG. 7A).

  At this time, since the lighting device 17 is fixed in a state of straddling the support frame 16, openings a are formed on both sides of the lighting device (FIG. 6A). This is done while observing the state of the suspension bolt 20 and nut 21. Also, the installation work on the ceiling surface X is carried out by attaching only the light support frame 16 made of synthetic resin to the support frame 16 in a state in which the fixture main body B in which the light emitting panel A and the main body frame 14 are integrated is not attached. Lift and install.

  Next, the main body frame 14 is lifted, and the locking piece portion 14 d of the main body frame 14 is fitted into the groove of the locking receiving portion 16 d formed on the inner periphery of the support frame 16. At this time, since the latch receiving portions 16d are formed on the four sides of the support frame 16 having a square shape, the latch piece 14d of the main body frame 14 is latched to the latch receiving portions 16d on any side. Therefore, by looking at the situation of obstacles near the ceiling, select and decide which side to be locked. As described above, the main body frame 14 is supported in a state of being suspended from one side of the support frame 16 (FIG. 7B).

  Next, in the frame body 14a of the main body frame 14 in the suspended state, each LED 11 comprising the light control body 19, the translucent plate 18, the base body 11a, the reflector 11c, and the heat radiating plate 11j described above is connected by wiring. The light emitting panels A are sequentially inserted, and the light control body 19 is locked to the inner surface of the collar portion 14n of the main body frame. Next, the wire 30a of the support member 30 is rotated and the tip is inserted into and engaged with the small hole 32 which is a positioning means, and the light emitting panel A or the like is pressed against the inner surface of the flange portion 12n of the main body frame by the elastic force of the wire. The light emitting panel A is supported in a state of being disposed on the inner peripheral side of the main body frame 14 (FIG. 7B). At this time, since the lead wires connected to the respective LEDs 11 are not flooded out of the outer surface of the light emitting panel A, the work can be easily performed without getting in the way. In addition, only the lead wire 41b connected to the lighting device 17 is bundled and pulled out to the outside.

  Next, the connector 12c of the lead wire 41b drawn from the light emitting panel A is connected to the terminal portion 17j drawn from one side plate 17c of the case member 17a of the lighting device 17. At this time, since the wiring connection between the lighting device 17 and the light emitting panel A can be performed on the hinge C side, the light emitting panel side lead wire 41b may be short and does not interfere with the operation. These operations can be performed in a state in which the main body frame 14 is extended from the support frame 16 and is suspended, which makes it easy to see and improves the workability.

  As described above, since the hinge portion C is configured in a state where the locking piece portion 14d is locked to the locking receiving portion 16d, the locking piece portion 14d of the main body frame 14 is rotated around the locking receiving portion 16d as an axis. Move. That is, the main body frame 14 integrated with the light emitting panel A or the like is locked to one side of the support frame 16 so that the main body frame 14 is inserted into the support frame 16, in other words, the light emitting panel. A is pushed up and closed so as to close the opening of the support frame 16 at A (in the direction of the arrow in FIG. 7B).

  Thereby, the engaging portion 14 e provided on the side opposite to the side locked by the main body frame 14 abuts on the flange portion 16 b of the support frame 16. In this state, as shown in FIGS. 4B and 4C, the screw head 14e3 of the stopper 14e1 exposed on the surface of the main body frame 14 is rotated to the left or right using a flat-blade screwdriver. 14e5 is protruded from the side surface 14k of the main body frame 14, and is engaged with the flange portion 16b of the support frame 16 from the inner surface. Thereby, one side of the main body frame 14 is engaged and supported by the engaging portion 14e by fitting the locking piece portion 14d and the locking receiving portion 16d of the support frame 16 together. At this time, the convex portion 14e4 of the stopper 14e1 is fitted into the small hole 14e6 of the cylindrical portion to restrict the rotation of the metal rod, and the stopper piece 14e5 is loosened and rotated due to vibration or long-term use. The main body frame 14 supporting the light-emitting panel A can be reliably engaged with the support frame 16 without being disengaged from the inner surface of the flange portion 16b of the 16 so as to maintain safety against the possibility of dropping or the like. Yes.

  As described above, the lighting fixture 10 including the light-emitting panel A, the main body frame 14, the support frame 16, and the lighting device 17 is installed on the ceiling X. The opening h of the ceiling is covered with a flange 16e which is a decorative edge of the support frame 16, and the flange 16e and the flange 14b of the main body frame 14 are flush with each other so that the ceiling surface X is installed in a flat state. The appearance is also improved.

  When the lighting fixture 10 installed above is turned on, the LED 11 of the light emitting panel A emits white light. The light emitted from the LEDs is emitted downward and laterally, reflected by the reflecting surface 11h of the reflector 11c, and illuminated with a wide, substantially circular light distribution that irradiates the entire surrounding area including directly under the fixture. At the same time, a part of the light reflected by the reflecting surface 11h is emitted toward the side of the appliance, and irradiates the ceiling surface X over a wider range.

  Further, the heat generated from each LED 11 at the time of lighting is radiated to the outside from the base 11a through the steel plate heat radiating plate 11j. Further, the heat of the lighting device 17 is also radiated through the case member 17a made of a steel plate and the main body frame 14 made of aluminum. As a result, the light emission efficiency of the LED can be prevented from being lowered, the light flux can be prevented from being lowered due to the temperature rise, and the life of the LED can be extended. In addition, the reliability of the circuit components of the lighting device 17 can be improved.

  Next, when taking out the light emission panel A by maintenance etc. of LED etc. which become a light source, it removes as follows. First, as shown in FIGS. 4B and 4C, the screw head 14e3 of the stopper 14e1 exposed on the surface of the main body frame 14 is rotated to the left or right using a flat-blade screwdriver. The engagement with the inner surface of the flange 16b of the support frame 16 is released. At this time, the convex portion 14e4 of the stopper 14e1 rotates simultaneously. By this rotation, the bearing portion 14e2 is bent utilizing the elasticity of the resin, and the convex portion 14e4 is released from the small hole 14e6 of the cylindrical body, and the lock is released.

  In this state, the locking piece portion 14d of the main body frame 14 is rotated about the locking receiving portion 16d of the support frame 16 as an axis, and is rotated so as to open the main body frame 14 from the opening of the support frame 16 ( FIG. 5 (a) → (b)). Thereby, the hook-shaped locking piece portion 14d of the main body frame 14 is locked in the groove of the locking receiving portion 16d. Thus, the main body frame 14 is locked and suspended so as not to be detached from the support frame 16 in the opened state (FIG. 7B).

  In this state, the wire 30a of the support member 30 supporting the light emitting panel A on the main body frame 14 is pulled out from the small hole 32 and rotated so as to come out from the frame body 14a of the main body frame 14 so that the upper surface of the light emitting panel A is obtained. The light emitting panel A may be pulled out from the main body frame 14. When the light emitting panel is removed together with the main body frame 14, as shown in FIG. 5C, the groove of the locking receiving portion 16d and the hook-shaped locking piece portion 14d of the main body frame 14 are locked. From this state, the main body frame 14 together with the light-emitting panel A, that is, the instrument, is released by further rotating in the opening direction to release the locking state between the hook-shaped locking piece portion 14d and the groove of the locking receiving portion 16d. The main body B can be removed from the support frame 16.

  As described above, according to the present embodiment, the inclined reflecting surface 11h that covers the periphery of the light emitting element 11 is formed to constitute the reflector 11c in which the cavity portion 11g is inevitably formed on the back surface. By using and arranging so as to form a substantially flat plate shape, a cavity portion 11G having a mountain-like substantially triangular shape is formed by combining each cavity portion 11g with the joint Q of each reflector 11c. Since the lead wire 41 that connects each LED 11 is accommodated using the cavity 11G that becomes the dead space, the lead wire is effectively wired with respect to the light emitting panel A, and the lead wire is excessively flooded and jumped out. Therefore, it is possible to improve the workability without obstructing the construction.

  At the same time, the connector 40 is covered with the cavity portion 11G and is positioned between the adjacent LEDs 11, so that it does not interfere with the LEDs, and the connector 40 does not come into contact with the LED or its charging portion. Further, the lead wire 41 can be accommodated without protruding from the hollow portion 11G, and interference between the lead wire 41 and the LED 11, its charging portion, or the like can be prevented. In addition, since these components do not interfere with each other, the reflector 11c can be closely attached to the circuit board 11a1, so that no gap is formed, and light leakage from each LED 11 can be prevented. There is no light loss. Furthermore, since the lead wire 41 is led out from the side facing the light emitting panel A, it does not interfere with the reflector 11c and the LED 11. Further, it is not necessary to form a special space for accommodating the lead wire that overflows as in the conventional case, and it is possible to achieve a reduction in the size of the light emitting panel A. Further, since the connector 40 faces the joint of each circuit board and the connection terminal portions 40a are all arranged in the same facing direction, the lead wire 41 can be concentrated and the connection work can be easily performed. And wiring work can be performed more efficiently.

  Moreover, according to the present Example, according to the improvement of the workability by the effective wiring process of the lead wire in a light emission panel, construction to to-be-installed parts, such as a ceiling, can be made still easier. That is, the main body frame 14 formed with a locking piece portion 14d protruding in a hook shape on one side, and the groove-shaped locking receiving portion 16d that fits the locking piece portion 14d of the main body frame 14 on each side forming a square. Since the formed support frame 16 is configured, only the light support frame 16 can be first installed on the ceiling X. From the support frame 16 having the frame body 16a opened, the situation behind the ceiling, suspension bolts 20, nuts 21, etc. It can be done while looking at the condition, making it easier to install.

  Further, the support frame 16 is first installed on the ceiling X, and the locking piece portion 14d of the main body frame 14 is fitted to the locking receiving portion 16d of the support frame 16 that has already been installed, so that the main body frame 14 is attached to the support frame 16. In this state, the light emitting panel A can be attached to the main body frame 14, and the installation work on the ceiling surface X is performed by the support frame 16 in which the light emitting panel A and the main body frame 14 are integrated. It is only necessary to lift and install the light support frame 16 made of a synthetic resin without attaching it, and it is possible to perform construction without supporting a relatively heavy object such as a lighting device as in the prior art. It becomes easy to carry out, and the workability to to-be-installed parts, such as a ceiling, can be made still easier by these effects. In particular, in a lighting fixture that employs an LED as a light source and is reduced in weight, it is possible to provide a lighting fixture that is more excellent in workability in combination with the weight reduction of the main body.

  Further, since the latch receiving portions 16d of the support frame 16 are formed on the four sides of the square support frame 16, the latch piece portions 14d of the square main body frame 14 are connected to the latch receiving portions on any side. Since it can be locked, the state of the obstacle near the ceiling, etc., and determining whether the main body frame 14 can be opened and closed with respect to the support frame 16, etc. It is possible to select and determine whether or not the 14 locking piece portions 14d are to be fitted, and it is possible to provide a lighting fixture with excellent workability. At the same time, it is possible to prevent the instrument body B from hitting an obstacle on the ceiling surface X and being unable to be removed due to maintenance after installation. Moreover, since the latching piece part 14d and the latching receiving part 16d are formed long along one side and can fit both together reliably, the reliable hinge part C can be comprised, The operability at the time of opening and closing the frame 14 is good, and rattling or the like does not occur. Further, the gap between the main body frame 14 and the support frame 16 can be hidden by the long locking piece portion 14d and the locking receiving portion 16d, and the appearance is also improved.

  As described above, in the present embodiment, a plurality of reflectors 11c are used to form the cavity portion 11G having a substantially triangular shape in a mountain shape by combining each cavity portion 11g with the joint Q of each reflector. As shown in FIG. 8 (a), it is not necessary to form all the reflectors in a common shape, and a cavity portion 11g formed by only one reflector 11c is formed, and the connector 40 is connected to the cavity portion 11g. The lead wire 41 may be accommodated. In this case, the other reflector 11c ′ is a side face with the side end face closed, and the light emitting part can be configured as a single product even in appearance. Further, a single reflector 11c may be configured such that a cavity 11g is formed on one side thereof, the connector 40 is positioned in the cavity 11g, and the lead wire 41 is accommodated.

  Moreover, although the latch receiving part 16d of the support frame 16 was formed in all the four sides of the support frame 16, you may make it form only in the edge | side facing the stopper 14e1 which is the engaging part 14e. Although the locking receiving portion 16d and the locking piece portion 14d are formed long along the side, either one or both may be formed shorter than the length of the side. The main body frame 14 and the support frame 16 are made of a metal having good thermal conductivity, but may be made of a synthetic resin having heat resistance, weather resistance and electrical insulation, for example, PBT (polybutylene terephthalate). .

  Although this invention comprised the lighting fixture installed by being embedded in to-be-installed surfaces, such as a ceiling, the lighting fixture installed by attaching directly to a ceiling may be sufficient. Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the scope of the present invention.

The light emission panel which concerns on 1st Embodiment of this invention is shown, (a) is the front view shown notching along the aa line and the bb line, (b) is the AA line of (a). FIG. The lighting fixture and the light emission panel are shown similarly, (a) is a longitudinal cross-sectional view of a lighting fixture, (b) is sectional drawing which follows the BB line of the light emission panel of Fig.1 (a). The lighting fixture is similarly shown, (a) is a side view of the support member, (b) is a top view of the positioning means. The lighting fixture is similarly shown, (a) is a perspective view showing an assembly procedure, (b) is a longitudinal sectional view of the engaging portion, and (c) is a sectional view taken along the line AA of (b). Similarly, the locking piece portion and the locking receiving portion of the luminaire are shown enlarged, (a) is a sectional view showing a fitted state, (b) is a sectional view showing a locked and suspended state, c) Sectional drawing which shows the state removed. The power supply part and support frame of a lighting fixture are shown similarly, (a) is a perspective view which shows an assembly state, (b) is a perspective view which shows the side-plate part of a support frame. Similarly, shows the construction procedure when installing the lighting fixture on the ceiling, (a) is a cross-sectional view showing a state where the support frame is installed on the ceiling, (b) is a state where the light emitting panel is supported on the suspended body frame (C) is sectional drawing which shows the state which supported the main body frame which integrated the light emission panel etc. in the support frame. The modification of a light emission panel is similarly shown, (a) is sectional drawing equivalent to FIG.1 (b) which shows a 1st modification, (b) is equivalent to FIG.1 (b) which shows a 2nd modification. Sectional drawing.

Explanation of symbols

A Light-emitting panel 10 Lighting fixture 11 Light-emitting element 11a Base 11c Reflector 11g Cavity 11h Reflecting surface 40 Electrical connection 41 Lead wire

Claims (2)

A substrate having a plurality of light emitting elements and formed in a substantially flat plate shape;
A plurality of substantially flat reflectors that are formed so as to form an inclined reflection surface that covers the periphery of the light emitting element to form a cavity on the back surface and to form a substantially flat plate shape on the substrate;
A plurality of electrical connecting portions that are disposed in a base located in a cavity formed in a joint between adjacent reflectors, are arranged to face each other , and are connected to a light emitting element;
A lead connected to the electrical connection and received in the cavity of the reflector;
A light-emitting panel comprising: A light-emitting panel according to claim 1;
An instrument body provided with a light emitting panel;
A lighting device for lighting the light emitting panel;
The lighting fixture characterized by comprising.

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