JP2013186981A - Led lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED lighting fixture having slender appearance and capable of irradiating light more uniformly.SOLUTION: An LED lighting fixture 101 is provided with a support part 200 having a first support face 210 of a circular shape facing an irradiation side as one side of a first direction and a second support face 220 surrounded by the first support face 210 in a second and a third directions at right angles with the first direction and at right angles with each other, a plurality of LED chips 310 supported by the first support face 210, a power source part 400 supported by the second support face 220 for supplying power to the plurality of LED chips 310, a cover 600 positioned at an irradiation side against the support part 200 for transmitting light therethrough from the LED chips 310, and a power source part housing 500 positioned between the support part 200 and the cover 600, covering the power source part 400 and transmitting light.

Description

  The present invention relates to an LED lighting apparatus including an LED chip.

  An LED lighting apparatus including an LED chip has been developed as an alternative product of a lighting apparatus of a type to which, for example, a fluorescent lamp is attached. A luminaire attached to the ceiling is generally referred to as a ceiling light.

  FIG. 15 shows an example of a conventional LED lighting apparatus used as a ceiling light (see, for example, Patent Document 1). The LED lighting fixture 900 shown in the figure is used by being attached to a ceiling 800. The LED lighting apparatus 900 includes a plurality of light source units 910, a reflecting surface 920, and a cover 930. Each light source unit 910 includes an LED chip (not shown). The reflective surface 920 is the surface of a metal plate member that has been subjected to, for example, white coating. The light from the light source unit 910 travels downward in the figure by being reflected by the reflecting surface 920. The cover 930 covers the reflection surface 920 and has a substantially rectangular shape in plan view. The cover 930 is made of, for example, a resin that transmits light while diffusing, and transmits light reflected by the reflecting surface 920 downward in the figure while diffusing. The LED lighting apparatus 900 is intended to achieve both a smart appearance along the ceiling and uniform illumination of the room.

  However, in the LED lighting apparatus 900 shown in FIG. 15, the light source unit 910 is located near the outer edge of the cover 930. For this reason, it is difficult for light from the light source unit 910 to reach a portion of the reflective surface 920 far from the light source unit 910 (near the center in the left-right direction in FIG. 15). Moreover, the shape of the reflective surface 920 is restricted as the thickness of the LED lighting apparatus 900 is reduced. This restriction may prevent uniform illumination by the LED luminaire 900.

JP 2008-300203 A

  The present invention has been conceived under the circumstances described above, and an object thereof is to provide an LED lighting apparatus that has a smart appearance and can be illuminated more uniformly.

  The LED lighting apparatus provided by the present invention includes an annular first support surface that faces an irradiation side that is one side in a first direction, and second and second that are perpendicular to the first direction and perpendicular to each other. A support portion having a second support surface surrounded by the first support surface in three directions; a plurality of LED chips supported by the first support surface; and a plurality of LED chips supported by the second support surface. A power supply unit for supplying power to the LED chip, a cover that is positioned on the irradiation side in the first direction with respect to the support unit, and that transmits light from the LED chip, and between the support unit and the cover And a power supply unit housing that covers the power supply unit and transmits light.

  In a preferred embodiment of the present invention, the second support surface is annular when viewed in the first direction, and the power supply housing is annular when overlapping the second support surface when viewed in the first direction.

  In a preferred embodiment of the present invention, the power source housing is located on the inner side in the second and third directions with respect to the power source, and forms an inner cylindrical wall portion along the first direction. An outer cylindrical wall portion that is located outside the power supply unit in the second and third directions and forms a cylindrical shape along the first direction, and the inner cylindrical wall unit and the outer cylindrical wall unit. A tip end is connected, and it has an annular wall part located between the power supply part and the cover.

  In a preferred embodiment of the present invention, the cover includes an annular main irradiation portion that overlaps the first support surface when viewed in the first direction, and a center that is located inside the main irradiation portion when viewed in the first direction. Part.

  In a preferred embodiment of the present invention, an inward portion in the second and third directions of the main irradiating portion is overlapped with an outward portion in the second and third directions of the annular wall portion. .

  In a preferred embodiment of the present invention, the outer portion of the central portion in the second and third directions is overlapped with the inner portion of the annular wall portion in the second and third directions.

  In a preferred embodiment of the present invention, the outer portion of the central portion is detachably attached to the inner portion of the annular wall portion.

  In a preferred embodiment of the present invention, each of the first support surface, the second support surface, and the power supply housing is annular when viewed in the first direction.

  In a preferred embodiment of the present invention, the power supply housing is transparent.

  In a preferred embodiment of the present invention, the cover transmits the light from the LED chip while diffusing it.

  In a preferred embodiment of the present invention, a light shielding plate is provided between the power supply housing and the power supply unit so as to overlap the power supply unit when viewed in the first direction, and includes a light shielding plate for blocking light. The surface on the irradiation side in the first direction of the plate is a high reflectance surface with high light reflectance.

  In a preferred embodiment of the present invention, the second support surface is located on the installation side which is the other side in the first direction with respect to the first support surface.

  In preferable embodiment of this invention, the said power supply part is located in the said 1st direction installation side rather than the said 1st support surface.

  In a preferred embodiment of the present invention, a light shielding plate is provided between the power supply housing and the power supply unit so as to overlap the power supply unit when viewed in the first direction, and includes a light shielding plate for blocking light. The surface on the irradiation side in the first direction of the plate is a high reflectance surface with high light reflectance.

  In a preferred embodiment of the present invention, the light shielding plate is inclined so as to be positioned closer to the irradiation side in the first direction toward the center in the second and third directions.

  In a preferred embodiment of the present invention, the power supply board is supported by the second support surface and on which the power supply unit is mounted. The surface of the power supply board on the first direction irradiation side is light reflective. It is considered to be a highly reflective surface with a high rate.

  Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.

It is a top view which shows the LED lighting fixture which concerns on 1st Embodiment of this invention. It is a side view which shows the LED lighting fixture of FIG. It is a bottom view which shows the LED lighting fixture of FIG. It is sectional drawing which follows the IV-IV line of FIG. It is a top view which shows the state except the cover of the LED lighting fixture of FIG. It is sectional drawing which shows an example of the LED module used for the LED lighting fixture of FIG. It is a principal part enlarged view of FIG. It is sectional drawing similar to FIG. 4 which shows the LED lighting fixture which concerns on 2nd Embodiment of this invention. It is a principal part enlarged view of FIG. It is sectional drawing similar to FIG. 4 which shows the LED lighting fixture which concerns on 3rd Embodiment of this invention. It is a top view which shows the state except the cover of the LED lighting fixture of FIG. It is a principal part enlarged view of FIG. It is sectional drawing similar to FIG. 4 which shows the LED lighting fixture which concerns on 4th Embodiment of this invention. It is a principal part enlarged view of FIG. It is sectional drawing which shows the conventional LED lighting fixture.

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

  1-5 has shown the LED lighting fixture which concerns on 1st Embodiment of this invention. The LED lighting apparatus 101 of this embodiment includes a support part 200, a plurality of LED modules 300, a power supply part 400, a power supply part housing 500, and a cover 600. The LED lighting apparatus 101 is intended to be used as a so-called ceiling light, for example, by being attached to the power supply unit 801 of the ceiling 800 via an installation component 802. In FIG. 5, most of the cover 600 is omitted for the sake of understanding.

  The support part 200 forms the foundation of the LED lighting apparatus 101, and is formed, for example, by pressing a metal plate. The support unit 200 includes a first support surface 210 and a second support surface 220. The first support surface 210 has an annular shape in plan view, and faces the lower side in the figure (the first direction irradiation side in the present invention) as shown in FIG. The second support surface 220 has an annular shape in plan view (first direction view). As can be understood from FIGS. 4 and 5, the second support surface 220 is formed in the in-plane directions (second and third directions) perpendicular to the vertical direction (first direction) in FIG. 4. 1 is surrounded by a support surface 210. In the present embodiment, the first support surface 210 and the second support surface 220 are located on the same plane. A plurality of cushioning materials 260 are provided on the surface of the support portion 200 on the ceiling 800 side. Note that the first support surface 210 and the second support surface 220 are, for example, white-coated, and are high reflectivity surfaces with high light reflectivity.

  The plurality of LED modules 300 are supported on the first support surface 210 via the LED substrate 240. The LED substrate 240 is an insulating substrate made of glass epoxy resin, for example, and has a partial annular shape. A plurality of LED substrates 240 are provided, and a plurality of LED modules 300 are mounted on each. In the present embodiment, the four LED substrates 240 are arranged so that their ends face each other, thereby forming an annular shape as a whole. In addition, the surface (lower surface in the figure in FIG. 4) on which the LED module 300 is mounted on the LED substrate 240 is provided with, for example, a white resist, and is a high reflectance surface with high light reflectance.

  Each LED module 300 has a rectangular shape in plan view. FIG. 6 shows a cross-sectional view in a plane perpendicular to the short direction of the LED module 300. As shown in the figure, the LED module 300 includes a pair of leads 320, an LED chip 310, a sealing resin 340, and a case 330. The pair of leads 320 is made of, for example, a Cu alloy, and the LED chip 310 is mounted on one of them. The surface of the lead 320 opposite to the surface on which the LED chip 310 is mounted is a mounting terminal 321 used for surface mounting the LED module 300. The LED chip 310 is a light source of the LED module 300 and can emit blue light, for example. The sealing resin 340 is for protecting the LED chip 310. The sealing resin 340 is formed using a light-transmitting resin containing a fluorescent material that emits yellow light when excited by light from the LED chip 310. Thus, the LED module 300 can appropriately set the color temperature of the emitted light. As said fluorescent substance, it may replace with what emits yellow light, and may mix and use what emits red light, and what emits green light. The case 330 is made of, for example, a white resin, and is for reflecting light emitted from the LED chip 310 laterally upward. The LED chip 310 may be of a so-called two-wire type that is connected to a pair of leads 320 by two wires.

  The plurality of LED modules 300 can be configured by one that emits a light bulb color, one that emits a daylight white color, or one that emits one of a light bulb color and a daylight white color. In the present embodiment, a case will be described in which a plurality of LED modules 300 that emit either one of a light bulb color or daylight white are employed. The plurality of LED modules 300 are classified into a light bulb color LED module 301 that emits a light bulb color and a day white LED module 302 that emits a neutral white color. In FIG. 5, the light bulb color LED module 301 is painted black for convenience of understanding.

  In the present embodiment, the plurality of LED modules 300 mounted on the first support surface 210 are arranged so as to form a seven-ring shape in plan view. For a plurality of LED modules 300 having an annular shape, a light bulb color LED module 301 that emits a light bulb color and a day white LED module 302 that emits a day white color are alternately arranged.

  As shown in FIG. 4, the power supply unit 400 is supported on the second support surface 220 via the power supply substrate 410. The power supply unit 400 converts, for example, AC 100V power supplied from the power supply unit 801 of the ceiling 800 into DC power having a voltage suitable for lighting the LED chip 310, and supplies this to a plurality of LED modules 300. belongs to. The power supply unit 400 includes, for example, a transformer, a capacitor, a resistor, a diode, an IC, and the like. Moreover, the power supply part 400 can control the brightness | luminance of the light bulb color LED module 301 and the daytime white LED module 302 independently. Thereby, the LED lighting fixture 101 can arbitrarily irradiate light having a color temperature between the light bulb color and the daytime white color. In the present embodiment, the surface (the lower surface in FIG. 4) on which the power supply unit 400 is mounted on the power supply substrate 410 is coated with, for example, white resist, and has a high reflectance surface with high light reflectance. Has been.

  A receiving unit (not shown) is mounted at an appropriate position of the support unit 200. The reception unit is for receiving a signal transmitted from a transmission unit (not shown), and the signal received by the reception unit is sent to the power supply unit 400. The power supply unit 400 controls the lighting state of the plurality of LED modules 300 based on the command of this signal.

  As shown in FIGS. 4 and 5, the power source housing 500 has an annular shape with a substantially U-shaped cross section, and overlaps the second support surface 220 in plan view. The power supply unit housing 500 is located between the support unit 200 and the cover 600 and covers the power supply unit 400. The power source housing 500 is made of a material that transmits light, and includes an inner cylindrical wall portion 510, an outer cylindrical wall portion 520, and an annular wall portion 530. The inner cylindrical wall portion 510 is located on the radially inner side with respect to the power supply unit 400 and has a cylindrical shape along the vertical direction in FIG. The outer cylinder wall part 520 is located radially outside the power supply part 400 and has a cylindrical shape along the vertical direction. The annular wall portion 530 connects the tips of the inner cylindrical wall portion 510 and the outer cylindrical wall portion 520 to each other, and is positioned between the power supply unit 400 and the cover 600. In the present embodiment, the power supply unit housing 500 is integrally formed of a transparent resin. The power supply unit housing 500 is fixed to the support unit 200 by appropriate means such as screws (not shown), and the power supply unit 400 is accommodated in an annular space surrounded by the support unit 200 and the power supply unit housing 500. Yes.

  The cover 600 constitutes most of the appearance of the LED lighting apparatus 101, and has a main irradiation part 610, an outer frame part 620, and a central part 630. The main irradiation unit 610 is made of, for example, milky white translucent resin, and is a part through which most of the light emitted from the LED chip 310 (LED module 300) and irradiated to the outside is transmitted. As can be understood from FIGS. 1 and 4, the main irradiating unit 610 has an annular shape corresponding to the first support surface 210 and overlaps the first support surface 210 in a plan view (first direction view). ing. As shown in FIG. 4, the radially inward portion of the main irradiating portion 610 is overlapped with the radially outward portion of the annular wall portion 530 of the power source housing 500. The inward portion of the main irradiating portion 610 is fixed to the outer peripheral portion of the annular wall portion 530 by appropriate means such as screws (not shown).

  The outer frame part 620 surrounds the main irradiation part 610 from the outside and has an annular shape. The outer frame portion 620 is made of, for example, a transparent resin or a milky white translucent resin, and is fixed to the outer edge portion 201 in a state of being superimposed on the outer edge portion 201 of the support portion 200.

  The central portion 630 is made of, for example, milky white translucent resin, and is disposed inside the main irradiation unit 610 in a plan view (first direction view). The radially outer portion of the central portion 630 is overlapped with the radially inner portion of the annular wall portion 530 of the power source housing 500. The outer portion of the central portion 630 is detachably attached to the inner portion of the annular wall portion 530 by appropriate means such as a screw (not shown).

  Next, the operation of the LED lighting apparatus 101 will be described.

  In the present embodiment, a second support surface 220 that supports the power supply unit 400 is provided on the radially inner side of the first support surface 210 on which the plurality of LED chips 310 (LED modules 300) are mounted. The part 400 is covered with a power supply part housing 500 made of a transparent resin. According to such a configuration, as shown in FIG. 7, a part of the light emitted from the LED chip 310 passes through the power source housing 500 toward the inner side in the radial direction and further passes through a portion near the center of the cover 600. Irradiated outside. Therefore, according to the LED lighting apparatus 101, the interior can be illuminated more uniformly while providing a smart appearance.

  The surface on which the power supply unit 400 is mounted on the power supply substrate 410 is a high reflectivity surface. For this reason, the light emitted from the LED chip 310 (LED module 300) can be efficiently directed to the irradiation side. This is suitable for uniform illumination by the LED lighting apparatus 101 while increasing the illuminance. In the present embodiment, the first support surface 210, the second support surface 220, and the LED substrate 240 are also high reflectivity surfaces. This is suitable for further increasing the illuminance of the LED lighting apparatus 101.

  The power source housing 500 has an inner cylindrical wall portion 510, an outer cylindrical wall portion 520, and an annular wall portion 530, and has an annular shape with a substantially U-shaped cross section. A cover 600 (the main irradiation part 610 and the central part 630) is superimposed on the power supply part housing 500. According to such a configuration, the power source housing 500 and the cover 600 are integrated and cooperate to increase the rigidity of the power source housing 500 and the cover 600, which is advantageous in terms of strength.

  A central portion 630 of the cover 600 is detachably attached to the power source housing 500. For this reason, when installing the LED lighting apparatus 101 on the ceiling 800, it is possible to easily attach the LED lighting apparatus 101 to the installation component 802 by removing the central portion 630 from the power source housing 500.

  By providing the light bulb color LED module 301 and the daylight white LED module 302, the light emitted from the LED lighting apparatus 101 can have any color temperature from the light bulb color to the daylight color. By providing the receiving unit, the color temperature can be adjusted and turned on and off appropriately from a place away from the LED lighting apparatus 101.

  8-14 show other embodiments of the present invention. In these drawings, the same or similar elements as those in the above embodiment are denoted by the same reference numerals as those in the above embodiment.

  8 and 9 show an LED lighting apparatus according to the second embodiment of the present invention. The LED lighting apparatus 102 of the present embodiment is additionally provided with a light shielding plate 550, and is different from the first embodiment in this respect.

  The light shielding plate 550 is made of, for example, a metal plate, and is disposed between the power supply unit housing 500 and the power supply unit 400. The light shielding plate 550 has an annular shape that overlaps the power supply unit 400 in plan view (first direction view), and is supported by the inner cylinder wall 510 and the outer cylinder wall 520 of the power supply housing 500. The lower surface (first direction irradiation side) of the light shielding plate 550 in the drawing is, for example, white-coated, and is a high reflectance surface having a high light reflectance.

  In the LED lighting apparatus 102 of the present embodiment, a second support surface 220 that supports the power supply unit 400 is provided on the radially inner side of the first support surface 210 on which the plurality of LED chips 310 (LED modules 300) are mounted. The power supply unit 400 is covered with a power supply unit housing 500 made of a transparent resin. According to such a configuration, as shown in FIG. 9, a part of the light emitted from the LED chip 310 passes through the power source housing 500 toward the inside in the radial direction and further passes through a portion near the center of the cover 600. Irradiated outside. Therefore, according to the LED lighting apparatus 102, it is possible to illuminate the interior more uniformly while providing a smart appearance.

  In the light shielding plate 550 provided between the power supply unit housing 500 and the power supply unit 400, the irradiation side surface is a high reflectance surface. For this reason, as can be understood from FIG. 9, the light emitted from the LED chip 310 (LED module 300) can be efficiently directed toward the central portion of the cover 600. This is suitable for more uniform illumination by the LED luminaire 102. Further, since the light shielding plate 550 is in a position overlapping the power supply unit 400 in plan view, the power supply unit 400 can be prevented from being visually recognized from the outside.

  10 to 12 show an LED lighting apparatus according to a third embodiment of the present invention. The LED lighting apparatus 103 of the present embodiment is mainly different from the first embodiment in the configuration of the second support surface 220 and the arrangement of the LED modules 300.

  As shown in FIG. 10, in the present embodiment, a step 230 is provided between the first support surface 210 and the second support surface 220. Due to the step 230, the second support surface 220 is located on the ceiling 800 side (installation side) opposite to the irradiation side than the first support surface 210. Further, the power supply unit 400 supported by the second support surface 220 is located on the installation side with respect to the first support surface 210.

  As shown in FIG. 11, the plurality of LED modules 300 are supported on the first support surface 210 via the LED substrate 250. The LED substrate 250 has a bar shape extending long in a certain direction. A plurality of LED substrates 250 are provided, and a plurality of LED modules 300 are mounted at intervals in the longitudinal direction. In the present embodiment, three types of LED substrates 250 having different longitudinal dimensions are arranged at intervals in the radial direction of the first support surface 210, and the nine LED substrates 250 constituting each type as a whole. It arrange | positions so that a substantially circular shape may be made.

  In the LED lighting apparatus 103 of the present embodiment, a second support surface 220 that supports the power supply unit 400 is provided on the radially inner side of the first support surface 210 on which the plurality of LED chips 310 (LED modules 300) are mounted. The power supply unit 400 is covered with a power supply unit housing 500 made of a transparent resin. According to such a configuration, as shown in FIG. 12, a part of the light emitted from the LED chip 310 passes through the power source housing 500 toward the inside in the radial direction and further passes through a portion near the center of the cover 600. Irradiated outside. Therefore, according to the LED lighting apparatus 103, the interior can be illuminated more uniformly while providing a smart appearance.

  In the present embodiment, the second support surface 220 is located closer to the ceiling 800 (installation side) than the first support surface 210. According to such a configuration, the power supply unit 400 supported by the second support surface 220 can be efficiently arranged in the space on the ceiling 800 side. Thereby, it is possible to reduce the vertical dimension (dimension from the installation side to the irradiation side) in FIG. 10 of the LED lighting apparatus 103, which is suitable for illuminating the interior more uniformly while providing a smart appearance. .

  Further, the power supply unit 400 supported by the second support surface 220 is also located closer to the ceiling 800 than the first support surface 210. According to such a configuration, it is possible to prevent the power source unit 400 from preventing the light emitted from the LED chip 310 from traveling radially inward. Therefore, the light emitted from the LED chip 310 (LED module 300) can be efficiently directed toward the central portion of the cover 600. This is suitable for more uniform illumination by the LED luminaire 103.

  13 and 14 show an LED lighting apparatus according to a fourth embodiment of the present invention. The LED lighting apparatus 104 of the present embodiment is additionally provided with a light shielding plate 560, which is different from the third embodiment in this respect.

  The light shielding plate 560 is made of, for example, a metal plate, and is disposed between the power supply unit housing 500 and the power supply unit 400. The light shielding plate 560 has an annular shape that overlaps with the power supply unit 400 in plan view (first direction view), and is supported by the inner cylinder wall 510 and the outer cylinder wall 520 of the power supply housing 500. The light shielding plate 560 of the present embodiment has a lower side in the figure (first direction irradiation) toward the center in the in-plane directions (second and third directions) perpendicular to the vertical direction (first direction) in the figure. It is inclined to be located on the side. The lower surface (first direction irradiation side) of the light shielding plate 560 in the drawing is, for example, white-coated, and has a high reflectance surface with high light reflectance.

  In the LED lighting apparatus 104 of the present embodiment, a second support surface 220 that supports the power supply unit 400 is provided on the radially inner side of the first support surface 210 on which the plurality of LED chips 310 (LED modules 300) are mounted. The power supply unit 400 is covered with a power supply unit housing 500 made of a transparent resin. According to such a configuration, as shown in FIG. 14, a part of the light emitted from the LED chip 310 passes through the power source housing 500 toward the inside in the radial direction and further passes through a portion near the center of the cover 600. Irradiated outside. Therefore, according to the LED lighting apparatus 103, the interior can be illuminated more uniformly while providing a smart appearance.

  The annular light shielding plate 560 provided between the power supply housing 500 and the power supply 400 is positioned on the irradiation side toward the inner side in the radial direction, and the surface on the irradiation side is a high reflectance surface. For this reason, as can be understood from FIG. 14, the light emitted from the LED chip 310 (LED module 300) can be efficiently directed toward the central portion of the cover 600. This is suitable for more uniform illumination by the LED luminaire 104. Further, since the light shielding plate 560 is in a position overlapping the power supply unit 400 in plan view, the power supply unit 400 can be prevented from being visually recognized from the outside.

  The LED lighting apparatus according to the present invention is not limited to the embodiment described above. The specific configuration of each part of the LED lighting apparatus according to the present invention can be varied in design in various ways.

101, 102, 103, 104 LED lighting device 200 support portion 210 first support surface 220 second support surface 230 step 240, 250 LED substrate 260 buffer material 300 LED module 310 LED chip 320 lead 321 mounting terminal 330 case 340 sealing resin 400 Power supply part 410 Power supply board 500 Power supply part housing 510 Inner cylinder wall part 520 Outer cylinder wall part 530 Annular wall part 550,560 Light shielding plate 600 Cover 610 Main irradiation part 620 Outer frame part 630 Central part 800 Ceiling 801 Power supply part 802 Installation parts

Claims (16)

An annular first support surface facing the irradiation side which is one side in the first direction, and surrounded by the first support surface in the second and third directions which are perpendicular to the first direction and perpendicular to each other. A support portion having a second support surface;
A plurality of LED chips supported on the first support surface;
A power supply unit supported by the second support surface for supplying power to the plurality of LED chips;
A cover that is located on the irradiation side in the first direction with respect to the support, and transmits light from the LED chip;
An LED lighting apparatus comprising: a power source housing that is positioned between the support and the cover, covers the power source, and transmits light. The second support surface is annular in the first direction view,
2. The LED lighting apparatus according to claim 1, wherein the power supply unit housing has an annular shape that overlaps the second support surface when viewed in the first direction.   The power source housing is located on the inner side in the second and third directions with respect to the power source, and has a cylindrical inner cylindrical wall portion along the first direction. The outer cylindrical wall portion that is located outside in the second and third directions and has a cylindrical shape along the first direction is connected to the distal ends of the inner cylindrical wall portion and the outer cylindrical wall portion, and the power supply portion and the above The LED lighting apparatus according to claim 2, further comprising an annular wall portion positioned between the cover and the cover.   The said cover has the cyclic | annular main irradiation part which overlaps with the said 1st support surface in the said 1st direction view, and the center part located inside the said main irradiation part in the said 1st direction view. LED lighting fixture of description.   5. The LED lighting apparatus according to claim 4, wherein an inward portion in the second and third directions of the main irradiating portion is overlapped with an outward portion in the second and third directions of the annular wall portion. .   6. The LED illumination according to claim 4, wherein an outer portion in the second and third directions of the central portion is overlapped with an inner portion in the second and third directions of the annular wall portion. Instruments.   The LED lighting fixture according to claim 6, wherein the outer portion of the central portion is detachably attached to the inner portion of the annular wall portion.   The LED lighting device according to any one of claims 1 to 7, wherein each of the first support surface, the second support surface, and the power source housing is annular in the first direction view.   The LED lighting apparatus according to claim 1, wherein the power supply unit housing is transparent.   The LED lighting apparatus according to claim 9, wherein the cover transmits light from the LED chip while diffusing. A light shielding plate for blocking light, positioned between the power supply housing and the power supply so as to overlap the power supply in the first direction view;
11. The LED lighting apparatus according to claim 1, wherein a surface on the irradiation side in the first direction of the light shielding plate is a high reflectance surface having a high light reflectance.   The LED lighting device according to claim 1, wherein the second support surface is located on an installation side that is the other side in the first direction with respect to the first support surface.   The LED lighting apparatus according to claim 12, wherein the power supply unit is located closer to the first direction installation side than the first support surface. A light shielding plate for blocking light, positioned between the power supply housing and the power supply so as to overlap the power supply in the first direction view;
The LED lighting device according to claim 12 or 13, wherein a surface of the light shielding plate on the irradiation side in the first direction is a high reflectance surface having a high light reflectance.   The LED light fixture according to claim 14, wherein the light shielding plate is inclined so as to be positioned closer to the irradiation side in the first direction toward the center in the second and third directions. A power supply board supported by the second support surface and mounted with the power supply unit;
The LED lighting device according to claim 1, wherein a surface on the first direction irradiation side of the power supply substrate is a high reflectance surface having a high light reflectance.

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