JP2018063787A - Led module and lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a lighting intensity uniformity ratio.SOLUTION: An LED module 1 includes: a substrate 10; a plurality of first LEDs 11 and a plurality of second LEDs 12 which are mounted on the surface of the substrate 10; and a connector 13 into which electric power for lighting the plurality of first LEDs 11 and the plurality of second LEDs 12 is input. The surface (of the substrate 10) includes: a first region S1 on which the plurality of first LEDs 11 are mounted; a second region S2 on which the plurality of second LEDs 12 are mounted; and a third region which separates the first region and the second region S2 from each other. The connector 13 is provided in the third region S3. The LED module 1 improves a lighting intensity uniformity ratio as compared with that in a constitution where the connector 13 is mounted on the first region S1 or the second region S2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an LED module and a lighting fixture, and more particularly, to an LED module configured by mounting a plurality of LEDs on a substrate, and a lighting fixture including the LED module.

  As a conventional example, an LED illumination device described in Patent Document 1 is illustrated. The LED illumination device described in Patent Document 1 (hereinafter referred to as a conventional example) includes an LED lamp body attached to a ceiling surface and a translucent cover attached to the LED lamp body. The LED lamp body includes an LED element, a substrate on which the LED element is mounted, a circuit component for a lighting circuit that is mounted on the substrate and lights the LED element, a heat dissipation member to which the substrate is attached, and a substrate through the heat dissipation member And a base member for holding.

  The substrate is formed in a substantially disc shape. A plurality of slits are provided between the central portion and the outer peripheral portion of the substrate. The substrate is divided into two areas inside (center side) and outside (outer peripheral side) of the slit. A plurality of LED elements are mounted on the outer peripheral side of the front surface of the substrate. A plurality of LED elements and circuit components for a lighting circuit are mounted on the center side of the front surface of the substrate. That is, the area on the outer peripheral side of the slit on the front surface of the substrate is the LED element mounting area. The area closer to the center than the slit on the front surface of the substrate is an area where LED elements and circuit components are mixed. In addition, the area of the outer peripheral part side in the back surface of a board | substrate is a thermal radiation area for radiating the heat | fever which a LED element and a lighting circuit emit through a thermal radiation member.

  The base member has a hooking blade that is electrically and mechanically connected to a wiring device such as a hooking sealing body. The hooking blade has a pin-shaped blade terminal portion. The blade terminal portion of the hook blade is inserted into the blade connection hole provided in the mixed mounting area of the substrate, and is fixed to the substrate by solder. That is, the lighting circuit of the board is supplied with external power from the wiring device via the hooking blade.

JP, 2015-159020, A

  However, in the conventional example, the electrical component (the blade terminal portion of the hooking blade) is arranged in the mixed mounting area of the substrate on which the LED element is mounted. Therefore, in the conventional example, the mounting space for the LED elements in the mixed mounting area where the LED elements are mounted is reduced by the electric parts, and it is difficult to improve the illuminance uniformity.

  The objective of this invention is providing the LED module and lighting fixture which can aim at the improvement of illumination intensity uniformity.

  An LED module according to an aspect of the present invention includes a substrate, a plurality of first LEDs and a plurality of second LEDs mounted on a surface of the substrate, and power for lighting the plurality of first LEDs and the plurality of second LEDs. Is provided with an input unit for inputting from the outside. The surface has a first region where the plurality of first LEDs are mounted, a second region where the plurality of second LEDs are mounted, and a third region which separates the first region and the second region. doing. The input unit is provided in the third region.

  The lighting fixture which concerns on 1 aspect of this invention is equipped with the said LED module and the fixture main body which supports the said LED module.

  The LED module and the lighting fixture of the present invention have an effect that it is possible to improve the illuminance uniformity.

FIG. 1 is a front view of an LED module according to an embodiment of the present invention. FIG. 2 is a front view of the sub-board in a state where the first LED, the second LED, and the connector are not mounted, showing the sub-board in the LED module. FIG. 3 is a front view of the sub-board in a state where the first LED, the second LED, and the connector are mounted on the sub-board in the LED module same as above. FIG. 4 is a front view of Modification 1 of the LED module. FIG. 5 is a front view of Modification 2 of the LED module. FIG. 6A is a front view of a lighting fixture according to an embodiment of the present invention. FIG. 6B is a rear view of the luminaire described above. FIG. 6C is a left side view of the same lighting fixture. FIG. 7 is an exploded perspective view of the same lighting fixture. FIG. 8 is a front view of the LED module, the insulating member, and the light guide member in the same lighting fixture. FIG. 9 is a cross-sectional view in which a part of the lighting apparatus is omitted. FIG. 10 is a cross-sectional view in which a part of the lighting apparatus is omitted. FIG. 11 is a diagram for explaining the operation of the lighting apparatus.

  Hereinafter, embodiments of an LED module according to the present invention and embodiments of a lighting fixture according to the present invention will be described in detail with reference to the drawings. The embodiment described below is only an example of the embodiment of the present invention. The present invention is not limited to the following embodiments, and various modifications can be made according to design and the like as long as the effects of the present invention can be achieved.

  As shown in FIG. 1, the LED module (Light Emitting Diode module) 1 of the present embodiment includes a substrate 10, a plurality of first LEDs 11 and a plurality of second LEDs 12 mounted on the surface of the substrate 10. The substrate 10 is formed in a generally annular shape. However, the substrate 10 is divided into a plurality of (three in the illustrated example) sub-substrates 100. Here, the three sub-boards 100 may be referred to as a first sub-board 100A, a second sub-board 100B, and a third sub-board 100C. Each of the three sub-boards 100 is formed in an arc shape. However, the three sub-boards 100 are all formed in the same shape and size. Each sub-substrate 100 is formed of, for example, a glass cloth base epoxy resin substrate. Here, in each sub-board 100, the side close to the center of the arc is called the inner side, and the side far from the arc center is called the outer side.

  The plurality of first LEDs 11 are mounted inside the surface of each sub-board 100 so as to be arranged concentrically from the inside toward the outside. The plurality of first LEDs 11 are mounted on the surface of each sub-board 100 so as to be arranged in a triple concentric shape, but may be mounted so as to be arranged in a concentric shape of two or less or four or more. The plurality of second LEDs 12 are mounted outside the surface of each sub-board 100 so as to be arranged in an arc shape. However, the plurality of second LEDs 12 may be mounted so as to be arranged concentrically in the second region S2 on the surface of the substrate 10. Here, on the surface of each sub-board 100, a region where the plurality of first LEDs 11 are mounted in a concentric triple manner is referred to as a first region S1. In addition, on the surface of each sub-substrate 100, a region where the plurality of second LEDs 12 are mounted in a circular arc shape is referred to as a second region S2. Further, on the surface of each sub-substrate 100, a region between the first region S1 and the second region S2, that is, a region separating the first region S1 and the second region S2 is referred to as a third region S3 (see FIG. 1). ). The plurality of first LEDs 11 and the plurality of second LEDs 12 are white LEDs for general illumination. However, the plurality of first LEDs 11 and the plurality of second LEDs 12 may include a plurality of types of general illumination white LEDs having different light colors, for example, daylight color and light bulb color general illumination white LEDs.

  A plurality (two in the illustrated example) of fixing portions 101 are provided in the third region S3 of each sub-substrate 100. Each fixing portion 101 has a circular through hole that penetrates the sub-substrate 100 in the thickness direction. These fixing portions 101 are arranged in a circular arc shape in the third region S3 of each sub-substrate 100. In the third region S3 of each sub-substrate 100, two first positioning holes 102, two second positioning holes 103, and one third positioning hole 104 penetrate the sub-substrate 100 in the thickness direction. doing. The first positioning hole 102, the second positioning hole 103, and the third positioning hole 104 are arranged so as to be arranged in an arc shape together with the two fixing portions 101.

  A plurality (two in the illustrated example) of receptacle connectors 130 are mounted on the third region S3 of each sub-board 100. One of the two receptacle connectors 130 is mounted on the first end portion 1001 in the longitudinal direction (circumferential direction) in the third region S3 of the sub-board 100. Another one of the two receptacle connectors 130 is mounted on the second end portion 1002 in the longitudinal direction (circumferential direction) in the third region S3 of the sub-board 100. In each sub-board 100, each of the two receptacle connectors 130 is a plurality of second connectors mounted on the surface of each sub-board 100 via a conductor (copper foil) 14 formed on the surface of each sub-board 100. 1 LED11 and several 2nd LED12 are electrically connected (refer FIG. 2). Each receptacle connector 130 is electrically and mechanically connected to a plug connector 131 corresponding to each receptacle connector 130 in a one-to-one relationship. One receptacle connector 130 and one plug connector 131 constitute one connector 13.

  The plug connector 131 connected to the receptacle connector 130 of the first end 1001 (1001A) of the sub-board 100A includes a plurality of plug connectors 131 connected to the receptacle connector 130 of the second end 1002 (1002B) of the sub-board 100B. Are electrically connected via an electric wire 132. Further, the plug connector 131 connected to the receptacle connector 130 of the second end 1002 (1002A) of the sub-board 100A is plug connector 131 connected to the receptacle connector 130 of the first end 1001 (1001C) of the sub-board 100C. Are electrically connected through a plurality of electric wires 133. Plug connector 131 connected to receptacle connector 130 at first end 1001 (1001B) of sub-board 100B is electrically connected to a plurality of electric wires 134. Plug connector 131 connected to receptacle connector 130 at second end portion 1002 (1002C) of sub-board 100C is electrically connected to a plurality of electric wires 135. However, the plurality of electric wires 134 and the plurality of electric wires 135 are electrically connected to output terminals of a power supply device that supplies power for lighting the plurality of first LEDs 11 and the plurality of second LEDs 12. That is, in the LED module 1, the connector 13 of the first end 1001B of the sub-board 100B and the connector 13 of the second end 1002C of the sub-board 100C correspond to the input unit. In addition, the two connectors 13 connected by the plurality of electric wires 132 and the two connectors 13 connected by the plurality of electric wires 133 correspond to a connection portion. However, when all the connectors 13 are directly electrically connected to the power supply device, all the connectors 13 correspond to the input unit. The plurality of first LEDs 11 and the plurality of second LEDs 12 mounted on the substrate 10 are lit by electric power supplied via the connector 13 corresponding to the input unit. Note that the input unit and the connection unit are not necessarily the connector 13. For example, the input part and the connection part may be pads (copper foil) formed on the surface of the substrate 10.

  As described above, the LED module 1 has the plurality of connectors 13 serving as input portions or connection portions mounted in the third region S3 on the surface of the substrate 10. Therefore, the LED module 1 can suppress a reduction in the mounting space of the LEDs in the first region S1 and the second region S2 as compared with the configuration in which the connector 13 is mounted in the first region S1 or the second region S2. . As a result, the LED module 1 can improve the illuminance uniformity as compared with the configuration in which the connector 13 is mounted in the first region S1 or the second region S2.

  Next, the structure of the substrate 10 (sub-substrate 100), particularly the structure of the surface will be described in more detail. FIG. 2 is a front view of the sub-board 100 in a state where the plurality of first LEDs 11 and the plurality of second LEDs 12 and the plurality of connectors 13 are not mounted. FIG. 3 is a front view of the sub-board 100 in a state where the plurality of first LEDs 11 and the plurality of second LEDs 12 and the plurality of connectors 13 are mounted.

  In the first region S1 of the sub-substrate 100, a plurality of pairs of pads 15A and 15B and a conductor 14 (14A) that electrically connects the plurality of pairs of pads 15A and 15B are formed (see FIG. 2). . The plurality of pairs of pads 15A and 15B are electrically connected to a pair of electrodes (an anode electrode and a cathode electrode) included in each of the plurality of first LEDs 11 corresponding to one to one (see FIG. 3). In the second region S2 of the sub-substrate 100, a plurality of pairs of pads 15C and 15D and a conductor 14 (14B) that electrically connects the plurality of pairs of pads 15C and 15D are formed (FIG. 2). reference). The plurality of pairs of pads 15C and 15D are electrically connected to a pair of electrodes (an anode electrode and a cathode electrode) included in each of the plurality of second LEDs 12 corresponding to one to one (see FIG. 3). Furthermore, a plurality of pads 15E and a plurality of conductors 14 (14C) are formed in the third region S3 of the sub-substrate 100 (see FIG. 2). Among the plurality of pads 15E, some of the pads 15E formed at the first end 1001 are electrically connected to the plurality of terminals 1300 included in the receptacle connector 130 in a one-to-one correspondence. (See FIG. 3). Among the plurality of pads 15E, another part of the pads 15E formed at the second end portion 1002 is electrically connected to a plurality of terminals 1300 included in another receptacle connector 130 (see FIG. 3). A part of the plurality of conductors 14C electrically connects a part of the plurality of pads 15E and the plurality of pads 15A and 15B in the first region S1 (see FIG. 2). Another part of the plurality of conductors 14C electrically connects another part of the plurality of pads 15E to the plurality of pads 15C and 15D in the second region S2 (see FIG. 2). ). Here, the plurality of conductors 14C formed in the third region S3 are part of the plurality of conductors 14A formed in the first region S1 and the plurality of conductors 14B formed in the second region S2. (See FIG. 2). The plurality of conductors 14C formed in the third region S3 are formed of a metal (copper foil) that is a good heat conductor. That is, the plurality of conductors 14C are thermally connected to the plurality of first LEDs 11 and the plurality of second LEDs 12 through the plurality of conductors 14A and 14B and the plurality of pads 15A to 15D, respectively. The LED module 1 can dissipate heat generated by the plurality of first LEDs 11 and the plurality of second LEDs 12 during lighting from the plurality of conductors 14C formed in the third region S3. That is, the LED module 1 promotes heat dissipation by forming a heat conductor (a plurality of conductors 14C) in the third region S3 of the substrate 10 on which the plurality of first LEDs 11 and the plurality of second LEDs 12 are not mounted.

  By the way, the shape of the substrate 10 of the LED module 1 is not limited to an annular shape. For example, the shape of the substrate 10 may be a square or a rectangle. The LED module 1X of the modification 1 which concerns on this embodiment is shown in FIG. The substrate 16 of the LED module 1X of the first modification is formed in a substantially square shape. The center of the substrate 16 is cut out in a circular shape. However, the substrate 16 is divided into a plurality of (four in the illustrated example) sub-substrates 160. Here, each of the four sub-boards 160 is formed in a substantially square shape. However, the four sub-boards 160 are all formed in the same shape and size. Each sub-substrate 160 is formed of, for example, a glass cloth base epoxy resin substrate. Here, in each sub-board 160, the side closer to the center of the board 16 is called the inner side, and the side far from the center of the board 16 is called the outer side.

  The plurality of first LEDs 11 are mounted inside the surface of each sub-board 160 so as to be arranged in a matrix from the inside to the outside. The plurality of second LEDs 12 are mounted on the outside of the surface of each sub-board 160 so as to be arranged in a straight line. On the surface of each sub-board 160, a region where the plurality of first LEDs 11 are mounted is a first region S1. Moreover, the area | region where several 2nd LED12 is mounted in the surface of each sub-board | substrate 160 is 2nd area | region S2. Further, on the surface of each sub-substrate 160, a region between the first region S1 and the second region S2, that is, a region separating the first region S1 and the second region S2 is a third region S3 (see FIG. 4). ).

  A plurality (two in the illustrated example) of receptacle connectors 130 are mounted on the third region S3 of each sub-board 160. In each sub-board 160, each of the two receptacle connectors 130 has a plurality of first LEDs 11 mounted on the surface of each sub-board 160 via a conductor (copper foil) formed on the surface of each sub-board 160. And a plurality of second LEDs 12 are electrically connected.

  As described above, the LED module 1 </ b> X according to the first modification has the plurality of connectors 13 mounted in the third region S <b> 3 on the surface of the substrate 16. Therefore, the LED module 1X of the first modification suppresses a reduction in the mounting space of the LEDs in the first region S1 and the second region S2 as compared with the configuration in which the connector 13 is mounted in the first region S1 or the second region S2. can do. As a result, the LED module 1X of the first modification can improve the illuminance uniformity compared to the configuration in which the connector 13 is mounted in the first region S1 or the second region S2. In addition, the LED module 1X of the first modification is configured such that heat generated during lighting of the plurality of first LEDs 11 and the plurality of second LEDs 12 is formed in the third region S3 by forming a plurality of conductors in the third region S3. It is possible to dissipate heat from a plurality of conductors.

  Then, the LED module 1Y of the modification 2 which concerns on this embodiment is shown in FIG. The board | substrate 17 of the LED module 1Y of the modification 2 is formed in the rectangular shape. However, the substrate 17 is divided into a plurality of (two in the illustrated example) sub-substrates 170. Here, the two sub-substrates 170 are each formed in a rectangular shape. However, the two sub-substrates 170 are formed in the same shape and size. Each sub-substrate 170 is formed of, for example, a glass cloth base epoxy resin substrate. Here, in each sub-substrate 170, the side closer to the center of the substrate 17 is called the inner side, and the side far from the center of the substrate 17 is called the outer side.

  The plurality of first LEDs 11 are mounted inside the surface of each sub-substrate 170 so as to be arranged in a matrix from the inside to the outside. The plurality of second LEDs 12 are mounted on the outside of the surface of each sub-substrate 170 so as to be arranged in a straight line. On the surface of each sub-substrate 170, a region where the plurality of first LEDs 11 are mounted is a first region S1. Moreover, the area | region where several 2nd LED12 is mounted in the surface of each sub-board | substrate 170 is 2nd area | region S2. Further, on the surface of each sub-substrate 170, a region between the first region S1 and the second region S2, that is, a region separating the first region S1 and the second region S2 is a third region S3 (see FIG. 5). ).

  A plurality (two in the illustrated example) of receptacle connectors 130 are mounted in the third region S3 of each sub-board 170. In each sub-board 170, the two receptacle connectors 130 are each a plurality of first LEDs 11 mounted on the surface of each sub-board 170 via conductors (copper foil) formed on the surface of each sub-board 170. And a plurality of second LEDs 12 are electrically connected.

  As described above, the LED module 1 </ b> Y according to the second modification has the plurality of connectors 13 mounted in the third region S <b> 3 on the surface of the substrate 17. Therefore, the LED module 1Y of Modification 2 suppresses a reduction in the mounting space of the LEDs in the first region S1 and the second region S2 as compared with the configuration in which the connector 13 is mounted in the first region S1 or the second region S2. can do. As a result, the LED module 1Y according to the second modification can improve the illuminance uniformity compared to the configuration in which the connector 13 is mounted in the first region S1 or the second region S2. Moreover, the LED module 1Y of the modification 2 is formed in the third region S3 by generating a plurality of conductors in the third region S3, thereby generating heat generated during lighting of the plurality of first LEDs 11 and the plurality of second LEDs 12 in the third region S3. It is possible to dissipate heat from a plurality of conductors.

  Next, the lighting fixture 9 of this embodiment is demonstrated in detail with reference to FIGS. As shown in FIG. 7, the lighting fixture 9 includes a fixture main body 2 attached to a construction material (ceiling finish) and an LED module 1 attached to the front surface (lower surface) of the fixture main body 2. The lighting fixture 9 preferably includes the insulating member 4 and the light guide member 5. Furthermore, it is preferable that the lighting fixture 9 includes the power supply unit 3, the lens block 6, the cover 7, and the globe 8. The lighting fixture 9 is a so-called ceiling light that is detachably attached to a hanging ceiling body installed on the ceiling of a house. Therefore, in FIG. 7, the direction from the instrument body 2 toward the LED module 1 is downward, and the direction from the LED module 1 toward the instrument body 2 is upward.

  The instrument main body 2 includes a first main body 20 and a second main body 21. The first main body 20 and the second main body 21 are each formed in a substantially disc shape by a metal plate such as a steel plate. A circular hole 200 penetrates in the center of the first main body 20 in the vertical direction. The second main body 21 has a support base 210. The support base 210 is formed in a truncated cone shape and protrudes downward from the lower surface of the second main body 21. An oval hole 211 penetrates in the vertical direction in the center of the support base 210. A window 212 is opened beside the hole 211 in the support base 210. The second body 21 is screwed to the first body 20 so as to cover the lower surface of the first body 20. That is, the instrument body 2 is configured by combining the first body 20 and the second body 21. A power supply unit 3 is housed inside the instrument body 2.

  The power supply unit 3 includes a power supply device 30, a mounting base 31, an insulating cover 32, and a holder 33. The power supply device 30 is configured to convert AC power supplied from a commercial power source into DC power and supply it to the LED module 1. The power supply device 30 includes, for example, a power factor correction circuit, a step-down DC / DC converter, and the like. The power supply device 30 is preferably realized by a printed circuit in which circuit components such as a semiconductor switching element, an inductor, a diode, a capacitor, and a driving circuit for the semiconductor switching element are mounted on a printed wiring board.

  The mounting base 31 is formed in a flat plate shape using an electrically insulating material such as synthetic resin. An elliptical hole penetrates the mounting base 31 in the vertical direction. A long cylindrical partition wall 310 protruding downward is provided around the hole in the lower surface of the mounting base 31. The power supply device 30 is attached to the lower surface of the mounting base 31 by screwing.

  The insulating cover 32 is formed in a flat plate shape smaller than the mounting base 31 with a material having electrical insulation properties such as synthetic resin. The insulating cover 32 is attached to the attachment base 31 so as to cover the power supply device 30 attached to the lower surface of the attachment base 31 from below. That is, the insulating cover 32 protects the power supply device 30 electrically and mechanically from below.

  The holder 33 includes a cylinder 330 that supports the hook ceiling adapter, and a fixing plate 331 that is formed integrally with the cylinder 330. The fixing plate 331 is formed in an oval flat plate shape with a synthetic resin. A circular hole passes through the center of the fixed plate 331. The cylinder 330 is formed in a cylindrical shape with a synthetic resin. The cylinder 330 is formed integrally with the fixing plate 331 so as to protrude downward from the peripheral edge of the hole on the lower surface of the fixing plate 331. The fixing plate 331 of the holder 33 is screwed to the mounting base 31. The cylindrical body 330 of the holder 33 is arranged inside the partition wall 310 in a state where the fixing plate 331 is screwed to the mounting base 31.

  The power supply unit 3 is attached to the first main body 20 by the mounting base 31 being screwed to the first main body 20 and stored in the instrument main body 2. The lower end of the partition wall 310 of the mounting base 31 is inserted into the hole 211 of the second main body 21. The hooking sealing adapter is inserted into the cylindrical body 330 of the holder 33. The hook ceiling adapter is detachably attached to a hook ceiling body installed on the ceiling. The instrument body 2 is detachably attached to the hook ceiling adapter. That is, the instrument main body 2 is detachably attached to the hooking sealing body via the hooking ceiling adapter, and is supported by the hooking sealing body via the hooking ceiling adapter. Further, the power supply device 30 of the power supply unit 3 is electrically connected to the LED module 1 via electric wires 134 and 135. However, since the hooking sealing body and the hooking sealing adapter are well known in the art, illustration and description of the detailed configuration are omitted.

  The LED module 1 is attached to the instrument main body 2, more specifically, the support base 210 of the second main body 21. As shown in FIG. 7, the support base 210 has a plurality (six in the illustrated example) of screw holes 213 and a plurality (six in the illustrated example) of protrusions 214. These protrusions 214 engage with corresponding ones of the plurality of first positioning holes 102 formed in each sub-substrate 100. The LED module 1 is fixed to the lower surface of the support base 210 by screwing screws inserted into the fixing portions 101 of the three sub-boards 100 into screw holes 213 corresponding to the fixing portions 101, respectively. . That is, the LED module 1 surrounds the periphery of the hole 211 of the second main body 21 over the entire circumference on the lower surface of the support base 210. However, the window 212 of the second main body 21 is exposed from between the first end portion 1001 and the second end portion 1002 of each sub-substrate 100. In addition, the nightlight and the infrared light receiving element provided in the power supply unit 3 are opposed to the window 212. That is, the light emitted from the nightlight is irradiated downward on the instrument body 2 through the window 212. Further, the infrared light receiving element can receive an infrared signal transmitted from the infrared remote controller through the window 212. In addition, it is preferable that the power supply device 30 blinks, light-controls, and colors the LED module 1 according to the command contained in the infrared signal received with an infrared light receiving element.

  The lens block 6 has an annular base 60 and a plurality of lenses 61. The plurality of lenses 61 are arranged on the lower surface of the base 60 so as to be arranged in a triple concentric manner. The base 60 and the plurality of lenses 61 are preferably integrally formed of a molded body of glass or a light-transmitting synthetic resin (acrylic resin or polycarbonate resin). The base 60 has two first lugs 62 protruding from the inner peripheral edge toward the center, and six second lugs 63 protruding outward from the outer peripheral edge. . The two first lugs 62 each have a circular hole penetrating in the thickness direction (vertical direction). A cylindrical projection protrudes upward on the upper surface of each of the six second lugs 63. Each of the projections of the six second lugs 63 engages with a corresponding one of the six second positioning holes 103 provided in the substrate 10 (sub-substrate 100). That is, the lens block 6 is positioned with the LED module 1 by fitting the projections of the six second lugs 63 into the six second positioning holes 103 of the substrate 10 on a one-to-one basis. The lens block 6 is mounted on the fixture main body 2 (the second main body 21 of the second main body 21) by two screws respectively inserted into the holes of the two first lugs 62 while covering the first region S 1 of the substrate 10 of the LED module 1 from below. Screwed to the support 210). Each of the plurality of lenses 61 is disposed so as to overlap with a corresponding one of the plurality of first LEDs 11 of the LED module 1 in the vertical direction. Each lens 61 is configured to collect light emitted from a corresponding first LED 11.

  As shown in FIG. 7, the light guide member 5 includes a light guide panel 50, a guide portion 51, and a plurality (three in the illustrated example) of attachment pieces 52. However, it is preferable that the light guide panel 50, the guide portion 51, and the plurality of attachment pieces 52 are integrally formed of a light-transmitting synthetic resin such as an acrylic resin or a polycarbonate resin. It is preferable that the guide part 51 is formed in a so-called trumpet-shaped cylindrical shape in which the opening diameter is gradually increased from top to bottom. The light guide panel 50 is formed in an annular shape. The inner peripheral edge of the light guide panel 50 is connected to the lower opening end of the guide portion 51 (the opening end having the larger diameter of the two opening ends) (see FIGS. 7 and 9). That is, the light guide member 5 is formed in a shape projecting outside the second region S2 along the direction away from the first region S1 and the third region S3 when viewed from the thickness direction (vertical direction) of the substrate 10. (See FIG. 8).

  It is preferable that a large number of irregularities be formed on the upper surface (or the upper and lower surfaces) of the light guide panel 50. The light emitted from the light guide panel 50 is preferably diffused by a large number of irregularities when emitted from the upper surface (or the upper surface and the lower surface) of the light guide panel 50. The three attachment pieces 52 protrude from the upper opening end of the guide portion 51 (the opening end having the smaller diameter of the two opening ends) toward the center. The three attachment pieces 52 are arranged at equal intervals along the circumferential direction of the guide portion 51 (see FIG. 7). Semicircular mounting grooves 520 are formed at both ends in the longitudinal direction (circumferential direction) of each mounting piece 52. A frustoconical protrusion protruding upward is formed at the center in the circumferential direction on the upper surface of each mounting piece 52. The protrusion of each attachment piece 52 mates with a corresponding one of the three third positioning holes 104 provided in the substrate 10 (sub-substrate 100). The light guide member 5 is inserted into the mounting grooves 520 of the three mounting pieces 52 through the six screws that screw the substrate 10 to the instrument main body 2 (second main body 21). At the same time, it is attached to the instrument body 2. The front end (upper end) of the guide portion 51 of the light guide member 5 faces the plurality of second LEDs 12 of the LED module 1 in the vertical direction (see FIG. 9). Accordingly, almost all of the light emitted from the plurality of second LEDs 12 enters the guide portion 51 from the upper end surface (incident surface) of the guide portion 51. The light incident on the guide part 51 travels through the guide part 51 and reaches the light guide panel 50. The light that reaches the light guide panel 50 is gradually emitted outside the light guide panel 50 while traveling through the light guide panel 50 (see FIG. 11).

  As shown in FIG. 7, the insulating member 4 has a reflecting portion 40 and a fixing portion 41. The reflecting portion 40 is preferably formed in a trumpet shape in which the opening diameter is gradually increased from top to bottom. The fixed part 41 is formed in an annular shape. The outer peripheral edge of the fixing portion 41 is connected to the upper opening end of the reflecting portion 40 (the opening end having the smaller diameter of the two opening ends) (see FIG. 7). The reflecting portion 40 and the fixing portion 41 are preferably formed integrally with a synthetic resin. The reflection unit 40 is configured to reflect visible light without transmitting it. Here, of the two side surfaces of the reflecting section 40, the inner side surface (the side facing the first region S1 of the LED module 1) is referred to as a first reflecting surface 401 (see FIG. 9). Of the two side surfaces of the reflecting portion 40, the outer side surface (the side facing the second region S2 of the LED module 1) is referred to as a second reflecting surface 402 (see FIG. 9). The fixing portion 41 has a plurality (six in the illustrated example) of screw insertion holes 410. As shown in FIG. 8, these six screw insertion holes 410 are arranged so as to be arranged at equal intervals along the circumferential direction of the fixing portion 41. A plurality (three in the illustrated example) of attachments 42 are fixed to the lower surface of the fixing portion 41 so as to be arranged at equal intervals in the circumferential direction (see FIG. 7).

  The fixing portion 41 of the insulating member 4 has a screw hole 215 provided in the support base 210 of the second main body 21 corresponding to each screw insertion hole 410. It is fixed to the support base 210 by being screwed. However, the fixing portion 41 is fixed to the support base 210 so that the three attachment pieces 52 of the LED module 1 and the light guide member 5 are sandwiched between the support base 210 (see FIG. 9). That is, the three attachment pieces 52 of the light guide member 5 and the fixing portion 41 of the insulating member 4 are arranged so as to overlap only the third region S3 of the LED module 1 when viewed from the vertical direction (see FIG. 9). Here, the reflection part 40 of the insulating member 4 is opposed to the inner peripheral surface of the light guide panel 50 with a uniform gap in a state where it is attached to the instrument main body 2 (second main body 21). Then, when a part of the light emitted from the second LED 12 and traveling in the guide portion 51 is emitted to the inner peripheral surface side (right side in FIG. 9) of the guide portion 51, it is reflected by the second reflecting surface 402 of the reflecting portion 40. Then, the light enters the guide portion 51 again. In addition, the light emitted from the first LED 11 is not incident on the guide part 51 of the light guide member 5 because it is reflected by the first reflection surface 401 of the reflection part 40. That is, the insulating member 4 optically insulates the plurality of first LEDs 11 and the plurality of second LEDs 12 of the LED module 1.

  The cover 7 is preferably formed of a synthetic resin such as a polystyrene resin into a trumpet shape that gradually increases the opening diameter from the bottom to the top (see FIG. 7). The diameter of the upper open end of the cover 7 is substantially equal to the outer diameter of the instrument body 2. Further, the diameter of the lower opening end of the cover 7 is substantially equal to the outer diameter of the lower side of the guide portion 51 of the light guide member 5. The cover 7 is attached to the lower surface of the instrument body 2 by being screwed to the support base 210 of the second body 21 (see FIG. 9). That is, the cover 7 is configured to cover the outer peripheral surface of the guide portion 51 of the light guide member 5 and the lower surface of the instrument main body 2 (the lower surface of the second main body 21).

  The globe 8 has a globe body 80 and a coupling portion 81. As shown in FIG. 7, the globe body 80 is formed in a flat cylindrical shape whose upper surface is opened with a synthetic resin having translucency. The coupling portion 81 is formed of a light-transmitting synthetic resin into a trumpet shape that gradually increases the opening diameter from top to bottom. A plurality (six in the illustrated example) of protrusions 82 are provided on the inner peripheral surface of the upper portion of the coupling portion 81 (see FIG. 7). These six protrusions 82 are arranged at equal intervals along the circumferential direction. Each protrusion 82 protrudes inward from the inner peripheral surface of the upper portion of the coupling portion 81. The opening end of the globe body 80 is connected to the opening end on the lower side of the coupling portion 81 (see FIG. 9). The globe 8 is preferably configured by joining the globe body 80 and the coupling portion 81 by an appropriate method such as adhesion or heat welding.

  Next, the assembly procedure of the lighting fixture 9 will be described. An operator who performs the assembly work assembles the instrument main body 2 by screwing the second main body 21 to the first main body 20 to which the power supply unit 3 is attached. Subsequently, the operator attaches the LED module 1, the lens block 6, the cover 7, the light guide member 5, and the insulating member 4 to the support base 210 of the instrument body 2 by screwing in order. Finally, the operator rotates the glove body 80 after inserting the coupling portion 81 inside the insulating member 4, and three of the six protrusions 82 are attached to the insulating member 4. Hook on a corresponding one of the tools 42 (see FIG. 10). That is, the globe 8 is detachably attached to the instrument body 2 via the plurality of attachments 42 (see FIGS. 6A and 6C).

  Here, the insulating member 4 preferably includes a storage portion 411 that stores the connector 13. As shown in FIG. 10, the storage part 411 is formed in a box shape so that a part of the fixing part 41 protrudes downward. Therefore, the connector 13 and the electric wires 132 to 135 electrically connected to the connector 13 are electrically and mechanically protected by the insulating member 4 by being housed in the housing portion 411.

  The lighting fixture 9 diffuses light emitted from the plurality of first LEDs 11 with the globe 8 and irradiates downward (see FIG. 11). Moreover, the lighting fixture 9 guides the light radiated | emitted from several 2nd LED12 with the light guide member 5, and radiate | emits it from the up-and-down both surfaces and end surface of the light guide panel 50 (refer FIG. 11). The light emitted from the light guide panel 50 is irradiated not only below the lighting fixture 9 but also on the ceiling surface and the wall surface. Here, the lighting fixture 9 optically insulates the light emitted from the plurality of first LEDs 11 and the light emitted from the plurality of second LEDs 12 by the insulating member 4, thereby realizing different light distribution characteristics for each light. can do. In addition, since the lighting fixture 9 has the fixing portion 41 of the insulating member 4 disposed in the third region S3 of the substrate 10, the first region S1 and the second region of the surface of the substrate 10 are fixed by the fixing portion 41 of the insulating member 4. It is possible to prevent S2 from decreasing. Furthermore, the luminaire 9 is radiated from the plurality of first LEDs 11 by reflecting a part of the light emitted from the plurality of first LEDs 11 by the first reflecting surface 401 of the insulating member 4 toward the first region S1. A decrease in light utilization efficiency can be suppressed. Furthermore, the lighting fixture 9 is radiated from the plurality of second LEDs 12 by reflecting a part of the light emitted from the light guide member 5 by the second reflecting surface 402 of the insulating member 4 and returning it to the light guide member 5. A decrease in light utilization efficiency can be suppressed.

  In addition, the lighting fixture may include the LED module 1X of the first modification or the LED module 1Y of the second modification. It is preferable that a lighting fixture provided with the LED module 1X of the modification 1 makes a fixture main body, an insulating member, a light guide member, a lens block, a cover, and a globe into a shape corresponding to the shape (square) of the LED module 1X. It is preferable that a lighting fixture provided with the LED module 1Y of the modified example 2 has a fixture body, an insulating member, a light guide member, a lens block, a cover, and a globe in a shape corresponding to the shape (rectangular shape) of the LED module 1Y.

  As described above, the LED modules 1, 1 </ b> X, and 1 </ b> Y are for lighting the substrate 10, the plurality of first LEDs 11 and the plurality of second LEDs 12 mounted on the surface of the substrate 10, and the plurality of first LEDs 11 and the plurality of second LEDs 12. And an input unit (connector 13) through which electric power is input from the outside. The surface (of the substrate 10) is a third region that separates the first region S1 in which the plurality of first LEDs 11 are mounted, the second region S2 in which the plurality of second LEDs 12 are mounted, and the first region S1 and the second region S2. And have a region. The input unit (connector 13) is provided in the third region S3.

  Since the LED modules 1, 1 </ b> X, and 1 </ b> Y are configured as described above, the illuminance uniformity is improved as compared with the configuration provided in the input unit (connector 13) in the first region S <b> 1 or the second region S <b> 2. be able to.

  In the LED modules 1, 1 </ b> X, 1 </ b> Y, the input unit is preferably a connector 13.

  If LED module 1, 1X, 1Y is comprised as mentioned above, the improvement of workability | operativity of the connection operation of the electric wire with respect to an input part can be aimed at.

  In the LED modules 1, 1 </ b> X, and 1 </ b> Y, the substrate 10 is preferably divided into a plurality of sub-substrates 100. It is preferable to include a plurality of connection portions (connectors 13) for electrically connecting the plurality of first LEDs 11 and the plurality of second LEDs 12 mounted on the plurality of sub-boards 100. The plurality of connection portions (connectors 13) are respectively connected to end portions (first end portion 1001 and second end portion 1002) where the plurality of sub-boards 100 are adjacent to each other in the third region S3 of the plurality of sub-boards 100. It is preferable to be provided.

  If LED module 1, 1X, 1Y is comprised as mentioned above, the improvement of workability | operativity of the connection operation | work of several connection parts (connector 13) can be aimed at.

  Further, as described above, the lighting fixture 9 includes the LED modules 1, 1X, 1Y and the fixture body 2 that supports the LED modules 1, 1X, 1Y.

  Since the lighting fixture 9 is configured as described above, it is possible to improve the illuminance uniformity.

  It is preferable that the lighting fixture 9 is provided with the insulating member 4 which optically insulates several 1st LED11 and several 2nd LED12. The insulating member 4 is preferably attached to the instrument main body 2 with the third region S3 of the substrate 10 sandwiched between the instrument main body 2.

  If the lighting fixture 9 is configured as described above, the light emitted from the plurality of first LEDs 11 and the light emitted from the plurality of second LEDs 12 are optically insulated by the insulating member 4, so that the respective lights can be obtained. Different light distribution characteristics can be realized. Moreover, the lighting fixture 9 can prevent the first region S1 and the second region S2 on the surface of the substrate 10 from being reduced by the insulating member 4.

  In the lighting fixture 9, it is preferable that the insulating member 4 has the accommodating part 411 which accommodates an input part or an input part, and a some connection part (connector 13).

  If the lighting fixture 9 is configured as described above, the input portion or the input portion, the plurality of connection portions (connectors 13), and the insulating member 4 can be arranged in the thickness direction of the substrate 10.

  In the lighting fixture 9, it is preferable that the insulating member 4 has the 1st reflective surface 401 which faces 1st area | region S1, and the 2nd reflective surface 402 which faces 2nd area | region S2. The first reflecting surface 401 is preferably configured to reflect a part of the light emitted from the plurality of first LEDs 11. The second reflecting surface 402 is preferably configured to reflect part of the light emitted from the plurality of second LEDs 12.

  If the luminaire 9 is configured as described above, a part of the light emitted from the plurality of first LEDs 11 and the plurality of second LEDs 12 is reflected by the first reflecting surface 401 and the second reflecting surface 402, thereby A decrease in usage efficiency can be suppressed.

  It is preferable that the lighting fixture 9 is provided with the light guide member 5 which guides the light radiated | emitted from several 2nd LED12.

  If the lighting fixture 9 is comprised as mentioned above, the light radiated | emitted from several 2nd LED12 can be made to guide the light guide member 5, and various light distribution characteristics can be implement | achieved.

  In the lighting fixture 9, the light guide member 5 is formed in a shape that protrudes outside the second region S <b> 2 along the direction away from the first region S <b> 1 and the third region S <b> 3 when viewed from the thickness direction (vertical direction) of the substrate 10. It is preferable that

  If the lighting fixture 9 is comprised as mentioned above, the irradiation range of the light radiated | emitted from several 2nd LED12 by the light guide member 5 can be expanded.

1, 1X, 1Y LED module 2 Appliance body 4 Insulating member 5 Light guide member 9 Lighting fixture 10 Substrate 11 First LED
12 Second LED
13 Connector (input part, connection part)
40 reflective portion 100 sub-substrate 401 first reflective surface 402 second reflective surface 1001 first end portion 1002 second end portion S1 first region S2 second region S3 third region

Claims (9)

A substrate, a plurality of first LEDs and a plurality of second LEDs mounted on the surface of the substrate, and an input unit to which power for lighting the plurality of first LEDs and the plurality of second LEDs is input from the outside. ,
The surface has a first region where the plurality of first LEDs are mounted, a second region where the plurality of second LEDs are mounted, and a third region which separates the first region and the second region. And
The input module is provided in the third region.   The LED module according to claim 1, wherein the input unit is a connector. The substrate is divided into a plurality of sub-substrates,
A plurality of connection portions for electrically connecting the plurality of first LEDs and the plurality of second LEDs mounted on the plurality of sub-boards;
The plurality of connection portions are respectively provided at end portions where the plurality of sub-substrates are adjacent to each other in the third region of the plurality of sub-substrates. LED module.   A lighting fixture comprising: the LED module according to any one of claims 1 to 3; and a fixture main body that supports the LED module. An insulating member for optically insulating the plurality of first LEDs and the plurality of second LEDs;
The lighting fixture according to claim 4, wherein the insulating member is attached to the fixture main body with the third region of the substrate interposed between the insulating member and the fixture main body.   The lighting device according to claim 5, wherein the insulating member includes a storage unit that stores the input unit or the input unit and the plurality of connection units. The insulating member has a first reflecting surface facing the first region and a second reflecting surface facing the second region;
The first reflecting surface is configured to reflect a part of light emitted from the plurality of first LEDs,
The lighting apparatus according to claim 5, wherein the second reflecting surface is configured to reflect a part of light emitted from the plurality of second LEDs.   The lighting fixture according to any one of claims 4 to 7, further comprising a light guide member that guides light emitted from the plurality of second LEDs.   The said light guide member is formed in the shape which protrudes outside the said 2nd area | region along the direction which leaves | separates from the said 1st area | region and the 3rd area | region seeing from the thickness direction of the said board | substrate. Item 9. A lighting apparatus according to Item 8.

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