JP5423273B2 - LED unit, LED lighting device, and LED lighting system - Google Patents

Description

  The present invention relates to an LED unit, an LED lighting device, and an LED lighting system.

  FIG. 27 shows an example of a conventional LED lighting device (see, for example, Patent Document 1). The LED illumination device X shown in the figure includes a long rectangular substrate 91, a plurality of LED modules 92 mounted on the substrate 91, a tube 93 that accommodates the substrate 91, a terminal 94, and the LED module 92. And a circuit 95 for lighting. The LED module 92 has a built-in LED chip (not shown) and emits, for example, white light. A wiring (not shown) connected to the plurality of LED modules 92 and the terminals 94 is formed on the substrate 91. This LED illumination device X is configured to allow a plurality of LED modules 92 to emit light by fitting a terminal 94 into an insertion port of a socket of a general fluorescent lamp luminaire. Since the LED module 92 has low power consumption and a long life, if the LED lighting device X is used as an alternative to a fluorescent lamp, improvements in cost and environment can be expected. The general-use fluorescent lamp luminaire is a luminaire widely used mainly for indoor general illumination. For example, in Japan, a commercial 100 V power source is used, and a straight-tube fluorescent lamp defined in JIS C7617 or A lighting fixture to which a ring-shaped fluorescent lamp defined in JIS C7618 is attached.

  However, there are various activities performed in indoor places such as living rooms, bedrooms, and conference rooms. Even in the same room, the brightness of natural light varies depending on the time and season. In particular, no illumination is required at night, and a sufficient amount of light is often required during the day. Furthermore, the so-called lunch white color is preferred in the room where work is performed, and the so-called light bulb color is preferred in the bedroom. Thus, even with indoor lighting, the required light quantity and hue vary depending on time and place. Therefore, the LED lighting device X that emits a single color with a constant light quantity cannot sufficiently meet the above-described demand.

Japanese Utility Model Publication No. 6-54103

  The present invention has been conceived under the circumstances described above, and provides an LED unit, an LED lighting device, and an LED lighting system capable of adjusting the luminance and hue of emitted light. Let it be an issue.

  The LED unit provided by the first aspect of the present invention is an LED unit including a plurality of LED modules each having an LED chip, and the plurality of LED modules are first and different in wavelength of emitted light. The second LED module is included.

  In a preferred embodiment of the present invention, at least some of the plurality of LED modules are arranged in a row along a first direction, and the plurality of the first LED modules and the plurality of the above-described LED modules are arranged. The second LED modules are alternately arranged.

  In a preferred embodiment of the present invention, a first power supply unit that supplies power to the first LED module and a second power supply unit that supplies power to the second LED module are further provided. And the said 1st and 2nd power supply part can adjust the light-emission quantity of the said 1st and 2nd LED module.

  In a preferred embodiment of the present invention, the light emission amount instruction radio signals of the first and second LED modules can be received, and the light emission amount instruction signals are sent to the first and second power supply units. A wireless slave unit is further provided.

  In a preferred embodiment of the present invention, the substrate extends in the first direction, has a substrate on which the plurality of LED modules are mounted, has a U-shaped cross section extending in the first direction, and has a bottom outer surface. And a support member to which the substrate is attached. The first and second power supply units are accommodated in the support member.

  In a preferred embodiment of the present invention, the wireless slave unit is provided adjacent to the support member in the first direction.

  According to such a configuration, it is possible to arbitrarily set the hue and brightness of light from the LED unit by appropriately adjusting the light emission amounts of the first and second LED modules. Accordingly, it is possible to illuminate the interior with light having a hue and luminance required depending on the installation location and the date and time.

  The LED lighting device provided by the second aspect of the present invention extends in the first direction with one or more LED units provided by the first aspect of the present invention, and supports the LED unit. And a support cover.

  In a preferred embodiment of the present invention, two or more of the LED units are arranged in parallel with each other and emit light to one side of the second direction perpendicular to the first direction. It is arranged to emit.

  In a preferred embodiment of the present invention, the LED unit further includes the LED units arranged in parallel to the two or more LED units and emitting light to the other side in the second direction.

  In a preferred embodiment of the present invention, the LED unit that emits light to one side of the second direction that is perpendicular to the first direction, and the first and second LED units than the LED unit. The LED unit having a small dimension in a third direction perpendicular to any of the directions and emitting light to the other side of the second direction.

  In a preferred embodiment of the present invention, any one of the one or more LED units is an LED unit that is provided according to the first aspect of the present invention and includes the wireless slave unit. The light emission amounts of all the LED units are adjusted by the light emission amount instruction signal from the wireless slave unit.

  The LED lighting system provided by the third aspect of the present invention includes an LED unit provided by the first aspect of the present invention and provided with the wireless slave unit, and the emission amount indicating radio for the wireless slave unit. And a wireless master unit that transmits a signal.

  In a preferred embodiment of the present invention, the wireless master unit is configured to change the light emission amount of the first LED module and the second LED module of each LED unit as time passes. Send.

  According to such a configuration, it is possible to set the hue and brightness of the light from the LED unit to a state according to the date and time, for example, throughout the year.

  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 front view which shows the usage example of the LED lighting apparatus based on 1st Embodiment of this invention. It is a side view which shows the usage example of the LED lighting apparatus based on 1st Embodiment of this invention. It is a principal part perspective view which shows the LED lighting apparatus based on 1st Embodiment of this invention. It is sectional drawing which follows the VI-VI line of FIG. It is sectional drawing which shows the LED unit based on 1st Embodiment of this invention. It is a top view which shows the board | substrate and LED module of the LED unit shown in FIG. It is sectional drawing which follows the VII-VII line of FIG. It is a top view which shows the power supply board and electronic component of the LED unit shown in FIG. It is a top view which shows the LED lighting apparatus shown in FIG. 5A is a plan view, FIG. 5B is a front view, FIG. 5C is a bottom view, and FIG. 5D is a right side view of the LED unit shown in FIG. 5. It is a principal part top view which shows the LED lighting apparatus shown in FIG. 11A is a plan view, FIG. 11B is a front view, FIG. 11C is a bottom view, and FIG. 11D is a right side view of the LED unit shown in FIG. 1 is a system configuration diagram showing an LED illumination system according to a first embodiment of the present invention. It is a top view which shows the LED lighting apparatus based on 2nd Embodiment of this invention. It is a left view which shows the LED lighting apparatus shown in FIG. It is a right view which shows the LED lighting apparatus shown in FIG. It is a top view which shows the LED lighting apparatus based on 3rd Embodiment of this invention. It is a left view which shows the LED lighting apparatus shown in FIG. It is a front view which shows the LED lighting apparatus based on 4th Embodiment of this invention. It is a principal part front view which shows the LED lighting apparatus shown in FIG. It is a principal part bottom view which shows the LED illuminating device shown in FIG. It is sectional drawing which follows the XXI-XXI line of FIG. It is a principal part top view which shows the LED lighting apparatus based on 5th Embodiment of this invention. It is a principal part front view which shows the LED lighting apparatus shown in FIG. It is a principal part bottom view which shows the LED lighting apparatus shown in FIG. It is sectional drawing which follows the XXVI-XXVI line of FIG. It is sectional drawing which shows an example of the conventional LED lighting apparatus.

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

  1 to 4 show an LED lighting device according to a first embodiment of the present invention. The LED lighting device B1 of the present embodiment includes a plurality of LED units A1 and a support cover 1. For example, as shown in FIGS. 1 and 2, the LED illumination device B <b> 1 is disposed on the top of the office desk D, and is configured to illuminate the ceiling W and the top surface of the office desk D.

  The support cover 1 has an elongated cylindrical shape as a whole, and is attached to the upper part of the office desk D in a posture in which the x direction is the longitudinal direction, as shown in FIGS. 1 and 2. As shown in FIGS. 3 and 4, the support cover 1 includes a pair of arc portions 11 and a pair of middle plate portions 12. The pair of arc portions 11 corresponds to a part of the same circle and are separated from each other in the y direction. The arc portion 11 is expected to prevent the light from the LED unit A1 from leaking in an unintended direction and to make the appearance of the LED lighting device B1 have a smart impression. Each middle plate portion 12 extends in the y direction from each arc portion 11 toward the center of the same circle. The middle plate portion 12 is a portion that supports the LED unit A1.

  The LED unit A1 is based on the first embodiment of the present invention. As shown in FIG. 5, the substrate 2, the plurality of LED modules 3, the support member 4, the cover 5, the first and second power supply units 6A. , 6B. Furthermore, one of the plurality of LED units A1 provided in the LED lighting device B1 includes a wireless slave unit 7 (see FIG. 9). The LED unit A1 is an elongated shape extending in the x direction, and is a unit that performs the light emitting function of the LED lighting device B1. In the present embodiment, the LED unit A1 has an x-direction dimension of 1227 mm, a y-direction dimension of 33 mm, and a z-direction dimension of 30 mm. In the LED lighting device B1, as shown in FIGS. 3 and 4, a plurality of LED units A1 are arranged in two rows in parallel in the z direction, and a plurality of LED units A1 are arranged in a row on the lower side in the z direction. Has been placed. The upper two rows of LED units A1 illuminate the ceiling W in FIGS. 1 and 2, and the lower one row of LED units A1 illuminates the top surface of the office desk D.

  As shown in FIGS. 5 and 6, the substrate 2 has a strip shape in which the x direction is the longitudinal direction and the y direction is the width direction, and is made of, for example, glass epoxy resin. In the present embodiment, the substrate 2 has an x-direction dimension of 204 mm and a y-direction dimension of 30 mm, and six substrates 2 are provided in one LED unit A1. One board 2 has 288 LED modules 3 mounted thereon. In order to supply power to the LED modules 3 to be described later, the substrate 2 is a laminated substrate. As shown in FIG. 6, the adjacent substrates 2 are arranged close to each other so that the end surfaces in the x direction hardly cause a gap. Wiring patterns (not shown) formed on adjacent substrates 2 are connected to each other by wiring 21.

  The plurality of LED modules 3 are modules serving as light sources of the LED unit A1, and are arranged in two rows on the substrate 2 as shown in FIG. In the present embodiment, the plurality of LED modules 3 is constituted by an LED module 3A and an LED module 3B. The LED modules 3A and 3B have different wavelengths of light to be emitted. For example, the LED module 3A emits a so-called neutral white having a color temperature of about 5,000K, and the LED module 3B has a so-called light bulb having a color temperature of about 3,000K. Emits color. As shown in the partial enlarged view on the left side of FIG. 6, the LED modules 3A and the LED modules 3B are alternately arranged in the x direction. Further, for example, in the part shown in the partial enlarged view on the right side of FIG. 6, the LED module 3B is mounted on the right end of the left substrate 2 in the figure, and the LED module 3B is mounted on the left end of the right substrate 2 in the figure. Module 3A is mounted. Thereby, LED module 3A, 3B is alternately arrange | positioned in the x direction in LED unit A1 whole. The LED unit A1 is mounted with 432 LED modules 3A and 3 LED modules 3B each, and a total of 864 LED modules 3 are used. The LED modules 3A and 3B have a plan view dimension of about 4.0 mm × 2.0 mm.

  As shown in FIG. 7, the LED modules 3 </ b> A and 3 </ b> B include a pair of leads 31, an LED chip 32, a sealing resin 33, and a reflector 34. The pair of leads 31 is made of, for example, a Cu alloy, and the LED chip 32 is mounted on one of them. A surface of the lead 31 opposite to the surface on which the LED chip 32 is mounted is a mounting terminal 31 a used for surface mounting the LED module 3. The LED chip 32 is a light source of the LED module 3, and can emit blue light, for example. The sealing resin 33 is for protecting the LED chip 32. The sealing resin 33 is formed using a light-transmitting resin containing a fluorescent material that emits yellow light when excited by light from the LED chip 32. The LED module 3A and the LED module 3B have different configurations of the sealing resin 33. Due to this difference, a daylight white color is emitted from the LED module 3A, and a light bulb color is emitted from the LED module 3B. 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 reflector 34 is made of, for example, white resin, and reflects light emitted from the LED chip 32 to the side.

  As shown in FIG. 5, the support member 4 is made of aluminum, for example, and has a U-shaped cross section having a bottom portion 41, two side plate portions 42, and two pressing plates 46. The substrate 2 is attached to the outside of the bottom portion 41. In the present embodiment, the bottom portion 41 and the substrate 2 have substantially the same y-direction dimension. Locking grooves 43 and 44 are formed in the two side plate portions 42. The locking grooves 43 and 44 extend in the x direction and are recessed inward in the y direction. The two pressing plates 46 are attached to the lower end of the side plate portion 42.

  As shown in FIG. 3, the cover 5 has a strip shape with a circular arc cross section extending in the x direction, and is made of, for example, milky white resin that diffuses and transmits light from the LED module 3. As shown in FIG. 5, locking pieces 51 and 52 are formed at both ends of the cover 5. The locking pieces 51 and 52 both extend in the x direction and project inward in the y direction. The locking piece 51 is engaged with the locking groove 43, and the locking piece 52 is engaged with the locking groove 44.

  The power supply units 6 </ b> A and 6 </ b> B include a case 61, a power supply substrate 62, and a plurality of electronic components 63, and are accommodated in the support member 4. The case 61 has a U-shaped cross section and is made of metal, for example. A power supply board 62 is attached to the case 61. As shown in FIG. 8, the power supply substrate 62 has a long rectangular shape, and a plurality of electronic components 63 are mounted thereon. The plurality of electronic components 63 are, for example, a capacitor 63a, a diode 63b, a circuit protection element 63c, a driver IC 63d, a coil 63e, a resistor 63f, such as a transistor 63g made of a power MOSFET. A connector (not shown) extends from the power supply units 6A and 6B. As shown in FIG. 5, the power supply units 6 </ b> A and 6 </ b> B are fixed to the support member 4 by the respective cases 61 being pressed by the pressing plate 46. The holding plate 46 and the case 61 are coupled by, for example, a bolt (not shown).

  In this embodiment, two power supply units 6A and 6B are provided in each LED unit A1. Each power supply unit 6A supplies power to 216 LED modules 3A, and each power supply unit 6B supplies power to 216 LED modules 3B. Each LED module 3 is supplied with DC power having a maximum voltage of about 3 V and a current of about 20 mA, for example.

  FIG. 9 is a view of the LED illumination device B1 as viewed from above in the z direction, and the LED units A1 other than the LED unit A1 at the left end in the x direction are omitted. As understood from the figure, two rows of LED units A1 arranged in parallel face each other above the LED illumination device B1 in the z direction, that is, on the ceiling W side in FIG. These two rows of LED units A1 are used for illumination of the ceiling W. The LED unit A1 provided on the upper side in the z direction is configured as shown in FIG. 10, and is installed on the upper side in the z direction with respect to the middle plate portion 12 of the support cover 1.

  FIG. 11 is a diagram in which the LED module A1 on the upper side in the z direction provided in the LED lighting device B1 is omitted. As shown in FIG. 12, the LED unit A1 arranged on the lower side in the z direction is provided with holders 45 at both ends in the x direction. The holder 45 extends on both sides in the y direction. In order to attach this LED unit A1 to the support cover 1, the cover 5 and the support member 4 are inserted into the gap between the pair of middle plate portions 12 shown in FIG. Then, the holder 45 extending in the y direction is caught on the middle plate portion 12. As a result, the LED unit A1 is supported by the middle plate portion 12.

  The wireless slave unit 7 is a wireless communication device having a physical layer according to, for example, IEEE 802.15.4 standard. As shown in FIG. 9, in this embodiment, the wireless slave unit 7 is configured such that components (not shown) such as electronic components and a board are built in a rectangular parallelepiped case. The support member 4 and the cover 5 are disposed at positions adjacent to each other in the x direction.

  FIG. 13 shows an example of an LED lighting system according to the present invention. The LED lighting system C of the present embodiment is configured by a plurality of LED lighting devices B1 and a wireless master unit 8. The wireless master unit 8 is a wireless communication device having a physical layer according to, for example, IEEE 802.15.4 standard, and is configured to be able to perform wireless communication with the wireless slave unit 7. The wireless master unit 8 can be connected to a personal computer PC as data input means. From the personal computer PC, for example, the brightness and color of the LED lighting device B1 in one year are distinguished and input for each date and time. The wireless master unit 8 stores the data in a built-in memory (not shown).

  From the wireless master device 8, a light emission amount instruction wireless signal is transmitted to each LED lighting device B1 based on the brightness and color of each date. When receiving the light emission amount instruction wireless signal, the wireless slave unit 7 of each LED lighting device B1 sends a light emission amount instruction signal to the power supply units 6A and 6B. The light emission amount instruction signal is, for example, a pulse waveform signal having a voltage of 5 V, and indicates the light emission time rate of each of the LED modules 3A and 3B that emit light by the power supply units 6A and 6B. Thereby, what is called PWM control is performed with respect to LED module 3A, 3B according to the said light emission amount instruction | indication radio signal.

  For example, when it is desired that a certain LED lighting device B1 emit white light, a light emission amount instruction signal for setting the light emission time rate of the LED module 3A to 100% is transmitted to the power supply unit 6A, and the light emission time rate of the LED module 3B is set to 0%. Is transmitted to the power supply unit 6B. On the other hand, when it is desired to cause a certain LED lighting device B1 to emit light bulb color, a light emission amount instruction signal for setting the light emission time rate of the LED module 3A to 0% is transmitted to the power supply unit 6A, and the light emission time rate of the LED module 3B is set to 100%. Is transmitted to the power supply unit 6B. By such PWM control, the hue of light emitted from the LED lighting device B1 (LED unit A1) can be freely adjusted between the neutral white color and the light bulb color. Moreover, the illumination intensity of LED lighting apparatus B1 (LED unit A1) can also be adjusted.

  In this embodiment, one wireless slave unit 7 is provided in one LED lighting device B1. This means that the plurality of LED units A1 provided in one LED lighting device B1 emit light with the same color and the same illuminance.

  Next, the operation of the LED unit A1, the LED illumination device B1, and the LED illumination system C will be described.

  According to the present embodiment, by controlling the LED modules 3A and 3B according to the light emission time rate, the hue of light emitted from the LED unit A1 and the LED lighting device B1 can be arbitrarily set between a neutral white color and a light bulb color. Is possible. Similarly, the brightness of the LED unit A1 and the LED lighting device B1 can be arbitrarily set between 0 and the maximum light amount. Accordingly, it is possible to illuminate the interior with light having a hue and luminance required depending on the installation location and the date and time.

  Since the daytime white LED module 3A and the light bulb color LED module 3B are alternately arranged in the x direction, it is possible to promote the color mixture of the light emitted from the LED modules 3A and 3B. Thereby, it can suppress that the person who sees LED unit A1 (LED illuminating device B1) recognizes separately the part which shines with the color of a light bulb color, and the light part with the hue of daytime white, and covers 5 It is possible to realize an appearance that emits light uniformly through.

  By attaching the substrate 2 to the support member 4 made of aluminum having a relatively high thermal conductivity, heat from the LED modules 3A and 3B can be satisfactorily transmitted to the support member 4 through the substrate 2. It is. Since the support member 4 has a U-shaped cross section, its surface area is relatively large. This is advantageous for increasing the heat radiation efficiency. By improving the heat dissipation efficiency, it is possible to suppress the deterioration of the LED modules 3A and 3B.

  Although the LED unit A1 has a simple and slender shape as a whole, it includes LED modules 3A and 3B as light sources, power supply units 6A and 6B as power supply means, and the like. For this reason, it is possible to mount LED unit A1 with respect to the support cover 1 with comparatively various postures, such as upward, downward, two rows, and one row. Thereby, LED lighting apparatus B1 can illuminate the ceiling W and the top | upper surface of the office desk D, Moreover, it does not become a complicated shape as a whole, but has shown the clean external appearance.

  The LED lighting system C combining the plurality of LED lighting devices B1 and the wireless master unit 8 can arbitrarily adjust the color and brightness of each LED lighting device B1 by transmitting and receiving a light emission amount instruction wireless signal. According to such a configuration, for example, there are advantages in that there is no troublesome wiring, and there are few restrictions on the installation location of the LED lighting device B1 as compared with a lighting system using a wire.

  The wireless base unit 8 stores the hue and brightness corresponding to the date and time throughout the year, and transmits the light emission amount instruction wireless signal corresponding to this, thereby setting the hue and brightness of the plurality of LED lighting devices B1 to the room and the brightness. It can be set to the one that suits the season and time.

  By arranging the wireless slave unit 7 on the outside of the support member 4, it is possible to prevent the light emission amount instruction radio signal from being unduly shielded, and to be appropriately received by the wireless slave unit 7. If the wireless slave unit 7 is arranged so as to be adjacent to the support member 4 in the x direction, the LED illumination device B1 can be prevented from becoming large in diameter.

  14 to 26 show another embodiment 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.

  FIGS. 14-16 has shown the LED lighting apparatus based on 2nd Embodiment of this invention. The LED lighting device B2 of the present embodiment is different from the above-described embodiment in the arrangement of the plurality of LED units A1.

  In the present embodiment, the plurality of LED units A1 are arranged in two rows only in the support cover 1 above the middle plate portion 12 in the z direction. As shown in FIGS. 15 and 16, the support cover 1 has a shielding bracket 13. The shielding bracket 13 is fitted in the space below the z direction with respect to the middle plate portion 12 in the pair of arc portions 11. The lower surface of the shielding bracket 13 in the z direction has an arc shape in cross section, and the lower surface of the arc shape is continuous with the pair of arc portions 12. The shielding bracket 13 is made of an opaque resin, for example. Such an LED lighting device B2 is used for the purpose of illuminating only the ceiling W in FIGS. 1 and 2, for example. As can be understood from the present embodiment, by using the LED unit A1, it is possible to minimize the number of LED units A1 mounted on the LED lighting device B2 while illuminating the direction in which illumination is necessary. Yes and reasonable.

  17 and 18 show an LED lighting device according to a third embodiment of the present invention. The LED lighting device B3 of the present embodiment is different from the above-described embodiment in the arrangement of the plurality of LED units A1.

  In the present embodiment, the plurality of LED units A1 are arranged in one row only in the support cover 1 below the middle plate portion 12 in the z direction. Such an LED lighting device B3 is used for the purpose of illuminating only the top surface of the office desk D in FIGS. 1 and 2, for example. As understood from the present embodiment, by using the LED unit A1, it is possible to minimize the number of LED units A1 mounted on the LED lighting device B3 while illuminating the direction in which the illumination is necessary. It is reasonable.

  FIGS. 19-22 has shown the LED lighting apparatus based on 4th Embodiment of this invention. The LED lighting device B4 of the present embodiment is different from the above-described embodiment in that it includes different types of LED units A1 and A2.

  In this embodiment, LED unit A1 and LED unit A2 are arrange | positioned on both sides of the support plate 15 in the z direction. The LED unit A2 has a significantly larger y-direction dimension than the LED unit A1. As shown in FIG. 22, in the LED unit A2, a plurality of LED modules 3 are arranged in four rows. The four rows of LED modules 3 correspond to the number of LED modules 3 existing when two LED modules A1 are arranged in parallel.

  The support member 4 has a U-shaped cross section that is relatively wide in the y direction. Since the support member 4 is wide, a large space is provided for accommodating the power supply units 6A and 6B. For this reason, it is possible to reduce the dimension of the occupied space of the power supply units 6A and 6B in the x direction.

  According to such a configuration, the ceiling unit W and the top surface of the office desk D in FIGS. 1 and 2 can be illuminated by the LED units A1 and A2 arranged in two rows. For example, it can be made a simple structure compared with the structure using LED unit A1 of 3 rows like LED lighting apparatus B1.

  23 to 26 show an LED lighting device according to a fifth embodiment of the present invention. The LED lighting device B5 of this embodiment is different from the above-described embodiment in that it includes only the LED unit A2.

  In the present embodiment, only the LED unit A2 that illuminates the upper side in the z direction is used. That is, it can be said that the LED unit A2 itself also serves as the LED lighting device B5. As can be understood from such an embodiment, the LED units A1 and A2 described above can perform a light emitting function by themselves when powered. Thereby, various LED illumination apparatuses, such as an LED illumination apparatus configured by combining a large number of LED units A1 and A2, from an LED illumination apparatus configured only of the LED units A1 and A2 can be realized.

  The LED unit, the LED lighting device, and the LED lighting system according to the present invention are not limited to the above-described embodiments. The specific configuration of each part of the LED unit, the LED lighting device, and the LED lighting system according to the present invention can be varied in design in various ways.

A1, A2 LED units B1 to B5 LED lighting device C LED lighting system W Ceiling x (first) direction y (third) direction z (second) direction 1 Support cover 2 Substrate 3 LED module 3A (first LED module 3B (second) LED module 4 support member 5 cover 6A (first) power supply unit 6B (second) power supply unit 7 wireless slave unit 8 wireless master unit 11 arc unit 12 middle plate unit 13 shielding bracket 15 support plate 31 lead 31a mounting terminal 32 LED chip 33 sealing resin 34 reflector 41 bottom 42 side plate 43, 44 locking groove 45 holder 46 pressing plate 51, 52 locking piece 61 case 62 power supply board 63 electronic component 63a capacitor 63b diode 63c circuit protection element 63d driver IC
63e coil 63f resistor 63g transistor

Claims (8)

A plurality of LED modules each having an LED chip;
The plurality of LED modules include first and second LED modules having different wavelengths of emitted light, and at least some of the plurality of LED modules are arranged in a row along a first direction. And a plurality of the first LED modules and a plurality of the second LED modules are alternately arranged,
A first power supply for supplying power to the first LED module;
A second power supply unit for supplying power to the second LED module,
The first and second power supply units are capable of adjusting light emission amounts of the first and second LED modules, and one or more LED units;
A support cover extending in the first direction and supporting the LED unit;
An LED lighting device comprising:
One or more LED units that emit light to a ceiling side that is one side of a second direction that is perpendicular to the first direction;
The LED unit that emits light to the desk side that is the other side of the second direction, and
At least one of the one or more LED units that emit light to the one side and the LED unit that emits light to the other side can receive a light emission amount indicating radio signal of the first and second LED modules. And a wireless slave unit that transmits a light emission amount instruction signal to the first and second power supply units,
The number of columns of the plurality of LED modules included in the one or more LED units that emit light toward the one side is the plurality of LED modules included in the LED unit that emits light toward the other side. The LED lighting device is characterized in that there are more than the number of columns. The two or more LED units emitting light to the one side are arranged in parallel with each other,
The LED lighting device according to claim 1, wherein the number of the LED units that emit light to the one side is larger than the number of the LED units that emit light to the other side.   The dimension of the LED unit that emits light to the other side has a dimension in a third direction that is perpendicular to both the first and second directions, and the LED unit that emits light to the one side. The LED lighting device according to claim 1, wherein the LED lighting device is smaller than a dimension in the third direction. The LED unit extends in the first direction, and a substrate on which the plurality of LED modules are mounted;
A support member having a U-shaped cross section extending in the first direction and having the substrate attached to the bottom outer surface,
The LED lighting device according to claim 1, wherein the first and second power supply units are accommodated in the support member.   The LED lighting device according to claim 4, wherein the wireless slave unit is provided at a position adjacent to the support member in the first direction. One of the one or more LED units that emit light to the one side and the LED unit that emits light to the other side includes the wireless slave unit,
The LED lighting device according to claim 1, wherein the light emission amounts of all the LED units are adjusted by a light emission amount instruction signal from the wireless slave unit of the LED unit. LED lighting device according to any one of claims 1 to 6,
A wireless master unit that transmits the light emission amount instruction wireless signal to the wireless slave unit;
An LED lighting system comprising:   The wireless base unit transmits the light emission amount instruction wireless signal so as to change the light emission amounts of the first and second LED modules of the LED units as time passes. LED lighting system.

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