JP5407037B2 - LED lighting device and LED lighting system - Google Patents

Description

  The present invention relates to an LED illumination device and an LED illumination system that illuminate, for example, the top of an office desk.

  A so-called desk lamp is widely used as a lighting fixture for illuminating the top of an office desk. FIG. 33 shows an example of a desk lamp type LED lighting device using an LED chip (for example, see Patent Document 1). In the LED lighting device X shown in the figure, an LED module 92 having LED chips is mounted on a substrate 91. The substrate 91 is attached to the hood 93. The hood 93 is connected to the base 95 via a connecting shaft 94. For example, daylight white light is emitted from the LED module 92. The connecting shaft 94 is configured to be bendable. Thus, by directing the hood 93 to a desired place on the top of the office desk, this place can be illuminated with daylight white light.

  However, the daylight white light can clearly illuminate books and the like, but when office work is continued for a long time, it is sometimes felt that the light is too bright. For example, after the evening when natural light becomes dark, the glare may cause a problem such as eye fatigue.

  Further, since the LED module 92 is a so-called point light source, a shadow such as a hand is clearly generated. The difference in brightness due to the shadow may promote eye fatigue.

JP 2006-107851 A

  The present invention has been conceived under the circumstances described above, and it is an object of the present invention to provide an LED lighting device and an LED lighting system that can be used comfortably while suppressing fatigue of the user. And

  The LED lighting device provided by the first aspect of the present invention includes a substrate, a plurality of LED chips disposed on the substrate, and a case that accommodates the substrate and has an opening that exposes the plurality of LED chips. It is characterized by providing these.

  In a preferred embodiment of the present invention, the plurality of LED chips constitute a planar light source.

  In a preferred embodiment of the present invention, the case has a spherical shape.

  In a preferred embodiment of the present invention, a support plate having a circular hole whose diameter is smaller than that of the case is further provided, and the case is attached to the circular hole.

  In a preferred embodiment of the present invention, an inner case made of metal to which the substrate is attached is further provided.

  In a preferred embodiment of the present invention, the inner case is connected to the case by a connecting member made of a material having a lower thermal conductivity than the metal.

  In a preferred embodiment of the present invention, the inner case has a bottomed cylindrical shape, and the substrate is attached to the outside of the bottom portion of the inner case.

  In a preferred embodiment of the present invention, a power supply unit that supplies power to the plurality of LED chips and is housed in the inner case is provided.

  In a preferred embodiment of the present invention, the touch sensor is connected to the power supply unit, operates a lighting state of the plurality of LED chips, supports the touch sensor, and is attached to the case. A sensor support portion.

  In a preferred embodiment of the present invention, the sensor support portion is made of a material having a lower thermal conductivity than the case and the touch sensor.

  In a preferred embodiment of the present invention, a gap communicating between the inside and outside of the case is provided between the sensor support portion and the case.

  In a preferred embodiment of the present invention, a cable further extending from the power supply unit through the case is provided, and the case has a plurality of ventilation holes arranged so as to surround the cable. Yes.

  In a preferred embodiment of the present invention, each of the LED modules includes a plurality of LED modules each having the LED chip, and the plurality of LED modules includes first and second LED modules having different wavelengths of emitted light. .

  In a preferred embodiment of the present invention, the plurality of first LED modules and the plurality of second LED modules are arranged in rows, and the first LED module Rows and rows of the second LED modules are alternately arranged.

  In a preferred embodiment of the present invention, a power supply unit that supplies power to the first and second LED modules is provided, and the power supply unit adjusts the light emission amount of the first and second LED modules. Is possible.

  In a preferred embodiment of the present invention, there is further provided a wireless slave unit that is capable of receiving the light emission amount instruction radio signals of the first and second LED modules and that transmits the light emission amount instruction signal to the power supply unit. Prepare.

  In a preferred embodiment of the present invention, a radio signal passage hole is formed in the case, and the radio signal passage hole and the wireless slave unit are viewed in a direction as the radio signal passage hole passes through the case. The part overlaps.

  In a preferred embodiment of the present invention, the touch sensor is connected to the power supply unit, operates a lighting state of the plurality of LED modules, supports the touch sensor, and is attached to the case. The sensor support portion is made of resin and provided in the wireless signal passage hole.

  The LED illumination system provided by the second aspect of the present invention is provided by the first aspect of the present invention, and includes an LED illumination device including the wireless slave unit and the light emission amount with respect to the wireless slave unit. And a wireless master unit that transmits an instruction wireless signal.

  In a preferred embodiment of the present invention, the wireless master unit is configured to change the emission amount of the first and second LED modules of the LED lighting devices according to the passage of time. Send a signal.

  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 use condition of an example of the LED lighting apparatus concerning this invention. It is a side view which shows the use condition of an example of the LED lighting apparatus concerning this invention. It is a principal part top view which shows the use condition of an example of the LED lighting apparatus concerning this invention. It is a principal part front view which shows the use condition of an example of the LED lighting apparatus concerning this invention. It is a principal part side view which shows the use condition of an example of the LED lighting apparatus concerning this invention. It is sectional drawing which follows the VI-VI line of FIG. It is principal part sectional drawing in alignment with the VII-VII line of FIG. It is a bottom view which shows an example of the LED lighting apparatus concerning this invention. It is a side view which shows the case of the LED lighting apparatus shown in FIG. It is a bottom view which shows the case of the LED lighting apparatus shown in FIG. It is the figure which looked at the case of the LED lighting apparatus shown in FIG. 7 from the dashed-dotted line direction of FIG. It is sectional drawing which shows the case and bracket of the LED lighting apparatus shown in FIG. It is a top view which shows the case and bracket of the LED lighting apparatus shown in FIG. It is a bottom view which shows the case and bracket of the LED lighting apparatus shown in FIG. It is a top view which shows the inner case of the LED lighting apparatus shown in FIG. It is sectional drawing which follows the XVI-XVI line | wire of FIG. It is a bottom view which shows the inner case of the LED lighting apparatus shown in FIG. It is a top view which shows the power supply part of the LED lighting apparatus shown in FIG. It is a front view which shows the power supply part of the LED lighting apparatus shown in FIG. It is a bottom view which shows the reflector of the LED lighting apparatus shown in FIG. It is a front view which shows the reflector of the LED lighting apparatus shown in FIG. It is a bottom view which shows the reflector of the LED lighting apparatus shown in FIG. It is sectional drawing which follows the XXIII-XXIII line | wire of FIG. It is a top view which shows the board | substrate and LED module of the LED lighting apparatus shown in FIG. FIG. 25 is an enlarged plan view showing the LED module shown in FIG. 24. It is sectional drawing which follows the XXVI-XXVI line | wire of FIG. It is a top view which shows the sensor support part of the LED lighting apparatus shown in FIG. It is sectional drawing which follows the XXVIII-XXVIII line of FIG. It is a bottom view which shows the sensor support part of the LED lighting apparatus shown in FIG. It is a top view which shows the touch sensor of the LED lighting apparatus shown in FIG. It is a front view which shows the touch sensor of the LED lighting apparatus shown in FIG. 1 is a system configuration diagram showing an example of an LED illumination system according to the present invention. It is a side view 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.

  1-8 has shown an example of the LED lighting apparatus concerning this invention. As shown in FIGS. 1 and 2, the LED illumination device A of the present embodiment is used to illuminate the top surface of the office desk D, for example, indoors. As shown in FIGS. 3 to 8, the LED lighting device A includes a case 1, a substrate 2, a plurality of LED modules 3, an inner case 4, a power supply unit 6, a wireless slave unit 63, and a touch sensor 65. . The LED lighting device A can be configured with a later-described LED lighting system B by including the wireless slave unit 63.

  Case 1 has a spherical shape as a whole, and is made of, for example, iron. As shown in FIGS. 9 to 11, the case 1 has an opening 11, a cable hole 12 </ b> A, a plurality of vent holes 12, and a back hole 13. The opening 11 has a shape corresponding to a cut surface when a part of a spherical shape is cut out. The cable hole 12A is formed in the vicinity of the center viewed from the direction of the dashed line in FIG. The plurality of vent holes 12 are concentrically arranged so as to surround the cable hole 12A. The back hole 13 is provided on the side opposite to the opening 11. In the present embodiment, the outer shape of the case 1 is about 120 mm, the diameter of the opening 11 is about 90 mm, the diameter of the cable hole 12A is about 8 mm, the diameter of each vent hole 12 is about 3 mm, and the diameter of the back hole 13 is about 40 mm. ing. The case 1 is formed by processing an iron plate having a thickness of about 1 mm.

  As shown in FIGS. 7 and 12 to 14, a bracket 16 is attached to the case 1. The bracket 16 is formed by processing, for example, an iron plate having a thickness of 1 mm, similarly to the case 1, and includes a joint portion 16a, a cylindrical portion 16b, an inner case support portion 16c, and a sensor stay 16e. The joint portion 16 a has a spherical shape formed along the portion of the case 1 where the back hole 13 is formed, and is welded to the case 1. The cylindrical portion 16b is connected to the joint portion 16a and has a cylindrical shape. The inner case support portion 16c is an annular frame-like portion that is folded inward from the cylindrical portion 16b. The inner case support 16c is provided with a resin pin hole 16d. The sensor stay 16e is provided inside the joint portion 16a, and has a structure in which a relatively thin annular portion is supported by four bridging portions. In this embodiment, the diameter of the cylindrical portion 16b is about 84 mm, the combined height of the joining portion 16a and the cylindrical portion 16b is about 57 mm, the inner diameter of the inner case support portion 16c is about 71 mm, and the resin pin hole 16d The diameter is about 3.5 mm, and the inner diameter of the sensor stay 16e is about 32 mm.

  As shown in FIGS. 7 and 15 to 17, the inner case 4 has a bottom portion 41 and a cylindrical portion 42, and is made of, for example, aluminum. A plurality of resin pin holes 41 a are formed in the bottom 41. Four tongues 43 extend radially outward from the cylindrical part 42. Each tongue portion 43 is formed with a resin pin hole 43a. As shown in FIG. 7, the inner case 4 is fixed to the bracket 16 via a resin pin 45. The resin pin 45 is inserted into and inserted into the resin pin hole 43a of the inner case 4 and the resin pin hole 16d of the bracket 16. In this embodiment, the diameter of the bottom part 41 is about 70 mm, the thickness is about 4.5 mm, the diameter of the cylindrical part 42 is about 70 mm, and the thickness is about 2.5 mm.

  As shown in FIGS. 7, 8, and 24, the substrate 2 has a substantially circular shape, and is made of, for example, a glass epoxy resin mixed with a filler for increasing the thermal conductivity. The substrate 2 is provided on the outer surface of the bottom 41 of the inner case 4. A plurality of LED modules 3 are mounted on the substrate 2. In this embodiment, the substrate 2 has a diameter of about 65 mm and a thickness of about 1 mm. The area where the plurality of LED modules 3 are mounted is a circular area having a diameter of about 50 mm.

  The plurality of LED modules 3 are modules serving as light sources of the LED lighting device A, and are mounted on the substrate 2 as shown in FIG. As shown in FIG. 8, the plurality of LED modules 3 face outward from the opening 11 of the case 1. 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. The plurality of LED modules 3 are arranged such that the LED module 3A and the LED module 3B form a row. The rows of LED modules 3A and the rows of LED modules 3B are alternately arranged. 300 LED modules 3A and 3 LED modules 3B are mounted on the LED lighting device A, and a total of 600 LED modules 3 are used. By arranging such a large number of LED modules 3 in an area having a diameter of about 50 mm, when these LED modules 3 are turned on, it is recognized that the substrate 2 emits light in a planar shape. That is, the plurality of LED modules 3 constitutes a planar light source.

  As shown in FIGS. 25 and 26, the LED modules 3A and 3B include an LED chip 32, a sealing resin 33, a substrate 35, and a pair of mounting terminals 34. The LED module 3 has a width of 0.8 mm, a length of 1.6 mm, and a thickness of about 0.5 mm, and is configured as a small and very thin LED module.

  The substrate 35 has a substantially rectangular shape in plan view, and is an insulating substrate made of, for example, glass epoxy resin. An LED chip 32 is mounted on the surface of the substrate 35. A pair of mounting terminals 34 is formed on the back surface of the substrate 35. The thickness of the substrate 35 is about 0.08 to 0.1 mm. The LED chip 32 is a light source of the LED modules 3A and 3B, and can emit blue light, for example. The sealing resin 33 is for protecting the LED chip 32. The sealing resin 33 is molded using a translucent resin containing a fluorescent material that emits yellow light, for example, 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.

  As shown in FIG. 7, a reflector 14 is provided between the substrate 2 and the opening 11 of the case 1. As shown in FIGS. 20 to 23, the reflector 14 is made of, for example, ABS resin, has a parabolic portion, and its inner surface is a reflecting surface 14a. The reflection surface 14a reflects the light from the plurality of LED modules 3 while diffusing the light outward. The reflecting surface 14a is not a surface having a high reflectance as that of a metallic gloss surface, and is, for example, a white surface on which fine irregularities are appropriately formed. The reflector 14 is formed with a plurality of tongue portions 14b. The plurality of tongue portions 14b are arranged on the same circle and each extend upward in FIG. As shown in FIG. 7, the reflector 14 is attached to the inner case 4 by sandwiching the inner case 4 by the tongue portion 14 b. A transmission plate 15 is attached to the reflector. The transmission plate 15 is made of a transparent resin or glass and covers the substrate 2. In the present embodiment, the reflecting surface 14a has a maximum diameter of about 87 mm and a minimum diameter of about 52 mm. Moreover, the height of the reflector 14 is about 25 mm.

  The power supply unit 6 is for supplying power to the plurality of LED modules 3, and includes a power supply board 61 and a plurality of electronic components 62 as shown in FIGS. 7, 18, and 19. The power supply substrate 61 is made of, for example, glass epoxy resin, and has a diameter of about 60 mm in the present embodiment. As shown in FIGS. 18 and 19, the plurality of electronic components 62 are mounted on the power supply board 61. The plurality of electronic components 62 includes, for example, a capacitor 62a, a coil 62b, a DC conversion element 62c, and a touch sensor substrate 62d. In the present embodiment, the wireless slave unit 63 is mounted on the power supply board 61. A cable 64 shown in FIGS. 4 and 5 is connected to the power supply unit 6. The cable 64 is inserted through the cable hole 12A shown in FIG.

  As shown in FIG. 7, the power supply unit 6 is accommodated in the inner case 4. The power supply board 61 is fixed to the bottom 41 of the inner case 4 via resin pins 45. The resin pin 45 is inserted into and fitted into a hole provided in the power supply substrate 61 and a resin pin hole 41a provided in the bottom 41 of the inner case 4 shown in FIGS. The power supply unit 6 supplies power independently to each of the plurality of LED modules 3A and the plurality of LED modules 3B, and can control the amount of each light emission independently.

  The touch sensor 65 is a sensor that detects that the user has touched with a finger, and is connected to the power supply unit 6 via a cable. The user can adjust the light emission amount and the hue (the light emission amounts of the plurality of LED modules 3) of the LED lighting device A using the touch sensor 65. As shown in FIGS. 30 and 31, the touch sensor 65 includes a circular head 65a and a shaft 65b connected to the head 65a. As shown in FIG. 3, in the present embodiment, five touch sensors 65 are provided. For example, the center touch sensor 65 is used for ON / OFF switching of the LED lighting device A. Of the remaining four touch sensors 65, the pair of touch sensors 65 that are spaced apart from each other with the center touch sensor 65 interposed therebetween are used to adjust the brightness of the LED lighting device A, and the remaining pair of touch sensors 65. The sensor 65 is used to adjust the hue of the LED lighting device A.

  As shown in FIG. 7, the touch sensor 65 is supported by a sensor support portion 66. As shown in FIGS. 27 to 29, the sensor support portion 66 has a circular shape, and is made of, for example, ABS resin. Five sensor holes 66 a are formed in the sensor support portion 66. The shaft portion 65b of the touch sensor 65 is fitted in each sensor hole 66a. Accordingly, the five touch sensors 65 are supported by the sensor support portion 66. As shown in FIGS. 7 and 28, the sensor support portion 66 is disposed in the back hole 13 of the case 1 and is supported by the sensor stay 16e shown in FIG. As shown in FIG. 28, a gap 67 that communicates with the inside and outside of the case 1 is provided between the touch sensor support portion 66 and the case 1.

  As shown in FIGS. 5 and 7, the LED lighting device A of the present embodiment further includes a support plate 10 that supports the case 1. The support plate 10 is made of, for example, a transparent acrylic resin, and is fixed to the office desk D. A circular hole 10 a is formed in the support plate 10. The diameter of the circular hole 10 a is about 108 mm, which is slightly smaller than the diameter of the case 1. The case 1 is fitted in the circular hole 10a. The case 1 is fixed to the support plate 10 in a state where the opening 11 is inclined 18 degrees from a state in which the opening 11 is directed directly below the vertical direction.

  The wireless slave unit 63 is a wireless communication device having a physical layer according to, for example, the IEEE 802.15.4 standard. As shown in FIGS. 7, 18, and 19, in this embodiment, the wireless slave unit 63 has a configuration in which constituent electronic components (not shown) such as an IC chip are mounted on a substrate. It is mounted on the power supply board 61 of the unit 6. Further, the wireless slave unit 63 is located substantially at the center of the power supply board 61. As shown in FIG. 7, this position overlaps the back hole 13 in the direction in which the back hole 13 penetrates the case 1.

  FIG. 32 shows an example of an LED lighting system according to the present invention. The LED lighting system B of the present embodiment includes a plurality of LED lighting devices A and a wireless master unit 7. The wireless master unit 7 is a wireless communication device having a physical layer according to, for example, the IEEE 802.15.4 standard, and is configured to be able to perform wireless communication with the wireless slave unit 63. The wireless master unit 7 can be connected to a personal computer PC as data input means. From the personal computer PC, for example, the brightness and color tone of the LED lighting device A over the course of one year are input separately for each date and time. The wireless base unit 7 stores the data in a built-in memory (not shown).

  The wireless master unit 7 transmits a light emission amount instruction wireless signal to each LED lighting device A based on the brightness and hue for each date and time. The wireless slave unit 63 of each LED illumination device A sends a light emission amount instruction signal to the power supply unit 6 when receiving the light emission amount instruction wireless signal. 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 unit 6. 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 a certain LED lighting device A is desired to emit white light, a light emission amount instruction signal for setting the light emission time rate of the LED module 3A to 100% and the light emission time rate of the LED module 3B to 0% is sent to the power supply unit 6. Send. On the other hand, when it is desired to cause a certain LED lighting device A to emit a light bulb color, a light emission amount instruction signal for setting the light emission time rate of the LED module 3A to 0% and the light emission time rate of the LED module 3B to 100% is sent to the power supply unit 6. Send. By such PWM control, the color of the light emitted from the LED lighting device A can be freely adjusted between the neutral white color and the light bulb color. Moreover, the illuminance of the LED lighting device A can also be adjusted.

  Next, the operation of the LED lighting device A and the LED lighting system B will be described.

  According to the present embodiment, the light emitted from the LED lighting device A is configured by light from the plurality of LED modules 3. Thereby, for example, the shadow caused by the light from the LD illumination device A becomes slightly blurred as compared with the configuration shown in FIG. In particular, since the plurality of LED modules 3 are mounted so densely as to form a planar light source, the shadow from the clear contour hardly occurs depending on the light from the LED lighting device A. Thereby, fatigue of the eyes of the user can be reduced.

  Further, by controlling the LED modules 3A and 3B according to the light emission time rate, it is possible to arbitrarily set the hue of the light emitted from the LED lighting device A between the neutral white color and the light bulb color. Similarly, the illuminance of the LED illumination device A 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, it is possible to promote color mixing of light emitted from the LED modules 3A and 3B. Thereby, it can suppress that the person who sees LED lighting apparatus A recognizes separately the part which shines with the shade of a light bulb color, and the part which shines with the hue of daytime white, and seems to emit light uniformly. Appearance can be realized.

  By supporting the spherical case 1 with the support plate 10 having the circular holes 10a, the direction in which the LED lighting device A is fixed can be made suitable for work.

  By attaching the substrate 2 to the inner case 4 made of aluminum having a relatively high thermal conductivity, heat from the LED modules 3A and 3B can be transferred to the inner case 4 through the substrate 2 in a good manner. It is. Since the inner case 4 has a bottomed cylindrical shape, 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.

  The inner case 4 is attached to the bracket 16 via a resin pin 45 having a thermal conductivity smaller than that of aluminum or iron. Thereby, the heat from the LED modules 3 </ b> A and 3 </ b> B is not actively transmitted to the case 1. Thereby, it can suppress that case 1 which is a site | part with which a user touches frequently becomes unreasonably high temperature. By providing the gap 67 between the sensor support portion 66 and the case 1, ventilation inside and outside the case 1 can be promoted. This is advantageous in preventing heat from being trapped inside the case 1. The plurality of ventilation holes 12 can also promote ventilation inside and outside the case 1, and the same effect can be expected.

  The wireless slave unit 63 is disposed at a position facing the back hole 13 of the case 1. Since the sensor support portion 66 that closes the back hole 13 is made of resin, it hardly shields radio signals. Thus, the wireless slave unit 63 can appropriately receive the light emission amount instruction wireless signal described above.

  The LED lighting system B in which the plurality of LED lighting devices A and the wireless master unit 7 are combined can arbitrarily adjust the color and illuminance of each LED lighting device A by transmitting and receiving a light emission amount instruction wireless signal. According to such a configuration, for example, there are advantages that there is no troublesome wiring, and there are few restrictions on the installation place of the LED lighting device A, as compared with, for example, an illumination system using a wire.

  The wireless base unit 7 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 the date and time to thereby adjust the hue and brightness of the plurality of LED lighting devices A to the room and It can be set finely to suit the season and time.

  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 lighting device and the LED lighting system according to the present invention can be varied in design in various ways.

A LED lighting device B LED lighting system D Office desk 1 Case 2 Substrate 3 LED module 3A (First) LED module 3B (First) LED module 4 Inner case 6 Power supply unit 7 Wireless base unit 10 Support plate 10a Circular Hole 11 Opening 12 Ventilation hole 12A Cable hole 13 Back hole (Radio signal passage hole)
14 Reflector 15 Transmission plate 16 Bracket 16a Joint portion 16b Tubular portion 16c Inner case support portion 16d Resin pin hole 16e Sensor stay 32 LED chip 33 Sealing resin 34 Mounting terminal 35 Substrate 41 Bottom portion 42 Tubular portion 43 Tongue portion 43a Resin pin Hole 45 Resin pin (connecting member)
61 Power supply board 62 Electronic component 62a Capacitor 62b Coil 62c DC conversion element 62d Touch sensor board 63 Wireless slave unit 64 Cable 65 Touch sensor 66 Sensor support 67 Gap

Claims (16)

A substrate,
A plurality of LED chips disposed on the substrate;
A case containing the substrate and having an opening through which the plurality of LED chips face outward and light from these LED chips pass ;
An inner case made of metal to which the substrate is attached,
The plurality of LED chips constitute a planar light source,
The case is spherical and
The said inner case is connected with the said case by the connection member which consists of a material whose heat conductivity is smaller than the said metal , The LED lighting apparatus characterized by the above-mentioned . A support plate having a circular hole having a diameter smaller than that of the case;
The LED lighting device according to claim 1 , wherein the case is attached to the circular hole. The inner case has a bottomed cylindrical shape,
The substrate is attached to the bottom exterior of the inner casing, LED lighting device according to claim 1 or 2. The plurality of LED chips to power the, and a power supply unit accommodated in the inner case, LED lighting device according to any one of claims 1 to 3. A touch sensor connected to the power supply unit and for operating lighting states of the plurality of LED chips;
The LED illumination device according to claim 4 , further comprising: a sensor support portion that supports the touch sensor and is attached to the case. The LED illumination device according to claim 5 , wherein the sensor support portion is made of a material having a lower thermal conductivity than the case and the touch sensor. The LED illumination device according to claim 5 or 6 , wherein a gap is provided between the sensor support portion and the case so as to communicate with the inside and outside of the case. Further comprising a cable extending from the power source through the case;
The above case, a plurality of vent holes arranged to surround the cable is formed, LED lighting device according to any one of claims 4 to 7. Each includes a plurality of LED modules having the LED chip,
The plurality of LED modules emit wavelengths of light including different first and second 2 LED modules, LED lighting device according to claim 1 or 2. The plurality of first LED modules and the plurality of second LED modules are arranged in rows, and the rows of the first LED modules and the rows of the second LED modules. And the LED lighting device according to claim 9 . A power supply for supplying power to the first and second LED modules;
The LED lighting device according to claim 9 or 10 , wherein the power supply unit is capable of adjusting a light emission amount of the first and second LED modules. Is capable of receiving the light emission amount instruction wireless signal of the first and second LED module, and further comprising a radio personal station unit to send the light emission amount instruction signal to the power supply unit, any one of claims 9 to 11 LED illuminating device of description. The case has a radio signal passage hole,
The LED illumination device according to claim 12 , wherein the wireless signal passage hole and the wireless slave unit overlap each other when the wireless signal passage hole passes through the case. A touch sensor connected to the power supply unit for operating lighting states of the plurality of LED modules;
A sensor support unit that supports the touch sensor and is attached to the case;
The LED illumination device according to claim 13 , wherein the sensor support portion is made of resin and provided in the wireless signal passage hole. A plurality of LED illumination devices according to any one of claims 12 to 14 ;
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 master unit section transmits the light emission amount indicating radio signal to vary the light emission amount of the first and second LED modules of each LED illumination device in accordance with the lapse of time, according to claim 15 LED lighting system.

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