JP2013093220A - Led bulb, led lighting device, and led lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED bulb capable of accelerating heat radiation from LED chips and a light source.SOLUTION: The LED bulb 101 includes a light-emitting portion 200 having the LED chips 220, a globe 510, a heat radiation member 300 having a power source storage space 320, the power source 530 stored in the light source storage space 320 and supplying power to the light-emitting portion 200, and a base 520. The light-emitting portion 200 is arranged on a main plane 311 of the heat radiation member 300, and the heat radiation member 300 has a support plate 310 having a back surface 312 forming a bottom face of the light source storage space 320, and an inner surface 321 extending in a direction facing from the back surface 312 to an opening 330. The heat radiation member 300 has a light source cover 400 storing the light source 530 in the light source storage space 320 and arranged by leaving a gap between at least a part of the back surface 312 and a part of the inner surface 321.

Description

  The present invention relates to an LED bulb, an LED lighting fixture, and an LED lighting system.

  FIG. 8 shows an example of a conventional LED bulb (see, for example, Patent Document 1). The LED bulb 900 shown in the figure includes an LED substrate 901, a plurality of LED chips 902, a heat dissipation member 903, a power supply unit 904, a base 905, and a globe 906. The plurality of LED chips 902 are light sources of the LED bulb 900 and are mounted on the LED substrate 901. The LED substrate 901 is made of an insulating material and is fixed to the heat dissipation member 903. The heat dissipating member 903 is made of a metal such as aluminum, for example, and serves to dissipate heat from the plurality of LED chips 902 to the outside. The base 905 is a part for attaching the LED bulb 900 to a lighting fixture or the like, and has a specification defined in the JIS standard, for example. The globe 906 protects the plurality of LED chips 902 and transmits light from the LED chips 902.

  When the LED bulb 900 is turned on, heat generation of the plurality of LED chips 902 is remarkable. It is preferable for extending the life of the LED chip 902 to dissipate heat from the LED chip 902 through the heat dissipation member 903. However, in some cases, it is difficult to ignore the heat generation from the power supply unit 904 that supplies power to the LED chip 902. Therefore, it is preferable to promote not only the heat radiation from the plurality of LED chips 902 but also the heat radiation from the power supply unit 904.

  An LED lighting apparatus including an LED chip as a light source has been proposed (for example, Patent Document 2). As one form thereof, there is a so-called pendant type LED lighting apparatus that is suspended from the ceiling of a residence. Such LED lighting fixtures are used daily by users.

  For the purpose of power saving and the like, the amount of LED lighting fixtures used is increasing year by year. In addition to LED lighting fixtures being used for lighting applications as basic applications, there is an increasing expectation for additional functions to make the daily life of users even more convenient.

JP 2010-225409 A JP 2010-153215 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 bulb capable of promoting heat dissipation from the LED chip and the power supply unit. Another object is to provide an LED lighting apparatus and an LED lighting system that can make daily life more convenient.

  The LED bulb provided by the first aspect of the present invention includes a light emitting unit having one or more LED chips, a globe that surrounds the light emitting unit and transmits light from the light emitting unit, the light emitting unit, and the light emitting unit. A heat radiating member having a power source housing space having an opening on the side opposite to the side on which the light emitting unit is attached, and supporting the globe, and being housed in the power source housing space and supplying power to the light emitting unit And a base located on the opposite side to the globe with respect to the heat radiating member, and the heat radiating member has the light emitting portion disposed on a main surface, the side opposite to the main surface being the above A support plate that forms a bottom surface of the power source housing space, and an inner surface that extends from the back surface in the direction toward the opening, and accommodates the power source in the power source housing space. It is characterized in that it comprises the back surface and at least a portion each arranged with a gap between the power supply unit cover of the inner surface.

  In a preferred embodiment of the present invention, the power source cover has a bottom plate portion facing the back surface, and a bottom plate protrusion that can contact the back surface is formed on the bottom plate portion.

  In a preferred embodiment of the present invention, the bottom plate protrusion is cylindrical.

  In preferable embodiment of this invention, the said baseplate part protrusion is comprised by the some wall-shaped part which mutually cross | intersected.

  In a preferred embodiment of the present invention, the bottom plate portion is formed with a through-hole into which a cable from the power supply portion is inserted at a position avoiding the bottom plate protrusion.

  In a preferred embodiment of the present invention, the power source cover has a larger contact area between the heat insulating part having a gap between the heat radiating member and the inner side surface than the heat insulating part. And a heat dissipating part located closer to the opening than the heat insulating part.

  In preferable embodiment of this invention, the said heat insulation part has a heat insulation part protrusion which contact | connects the said inner surface.

  In preferable embodiment of this invention, the said heat insulation part protrusion is long extended in the direction which goes to the said opening from the said back surface.

  In preferable embodiment of this invention, the said thermal radiation part has a larger cross-sectional dimension than the said heat insulation part, and is in contact with the said inner surface over the perimeter.

  In a preferred embodiment of the present invention, a positioning groove is formed on the inner side surface near the opening and extends in a direction from the back surface toward the opening. The power source cover includes the positioning groove. Positioning protrusions that fit into the grooves are formed.

  In preferable embodiment of this invention, the said positioning protrusion is formed in the said thermal radiation part.

  In a preferred embodiment of the present invention, the power source cover is made of an insulating material and is interposed between the heat dissipation member and the base.

  In a preferred embodiment of the present invention, the power source cover has a flange that is sandwiched between the heat radiating member and the base and exposed to the outside.

  In preferable embodiment of this invention, it has an accommodation groove | channel which accommodates the said opening side end of the said heat radiating member in the said collar part.

  In preferable embodiment of this invention, the said heat radiating member has a thick part located in the said back surface side, and a thin part located in the said opening side and thinner than the said thick part.

  In a preferred embodiment of the present invention, the heat radiating portion of the power source cover is in contact with the thin portion of the heat radiating member.

  In a preferred embodiment of the present invention, the heat dissipation member has a uniform thickness portion that surrounds the power source cover and has a uniform thickness.

  In a preferred embodiment of the present invention, the uniform thickness portion has a portion whose cross-sectional shape increases from the opening toward the back surface.

  In preferable embodiment of this invention, the thickness of the said uniform thickness part is 0.5-1.0 mm.

  The LED lighting apparatus provided by the second aspect of the present invention includes a light emitting unit including one or more LED chips, a power supply unit that supplies power to the light emitting unit, and an LED driver that controls light emission of the light emitting unit. A control unit that sends a lighting control command for changing the lighting state of the light emitting unit to the LED driver, and the control unit is a notification command signal when the LED driver lights the light emitting unit. And a wireless transmission unit that wirelessly transmits a notification signal by receiving the notification command signal.

  In preferable embodiment of this invention, it has the hanging string which a user pulls, and when the said hanging string is pulled, the switch part which switches the lighting state of the said light emission part is provided.

  In a preferred embodiment of the present invention, a human sensor is provided that outputs a human signal when a user enters the sensing area, and the control unit receives the human signal from the human sensor. Based on this, the lighting control command is sent to the LED driver.

  In a preferred embodiment of the present invention, the notification signal is an e-mail.

  In a preferred embodiment of the present invention, the electronic device includes a time measuring unit that measures an elapsed time after transmission from the time when the e-mail is transmitted, and the control unit transmits the predetermined time after the transmission. It is determined whether or not to send an e-mail by comparing the prohibited time.

  The LED lighting system provided by the third aspect of the present invention includes an LED lighting apparatus provided by the second aspect of the present invention and wireless reception for receiving an e-mail as the notification signal from the wireless transmission unit. And a communication unit that transmits an electronic mail as the notification signal to a public communication line.

  The LED lighting system provided by the fourth aspect of the present invention includes an LED lighting apparatus provided by the second aspect of the present invention, a wireless reception unit that receives the notification signal from the wireless transmission unit, and the above The wireless receiving unit includes an e-mail transmitting unit that transmits an e-mail when the notification signal is received, and a communication unit that transmits the e-mail from the e-mail transmitting unit to a public communication line.

  In a preferred embodiment of the present invention, the electronic mail transmission unit includes a time measuring unit that measures an elapsed time after transmission from the time when the electronic mail is transmitted, and the electronic mail transmission unit includes the post-transmission elapsed time. By comparing the time with a predetermined transmission prohibition time, it is determined whether or not to send an e-mail.

  The LED lighting apparatus provided by the fifth aspect of the present invention includes a light emitting unit including one or more LED chips, a power supply unit that supplies power to the light emitting unit, and an LED driver that controls light emission of the light emitting unit. A control unit that sends a lighting control command to change the lighting state of the light emitting unit to the LED driver, and the control unit turns the LED when the LED driver lights the light emitting unit. A notification light emission command is sent to the driver, and the LED driver causes the light emitting unit to emit light in a predetermined notification light emission pattern.

  In a preferred embodiment of the present invention, a timing unit is provided for measuring an elapsed time after transmission from the time when the notification light emission command is sent, and the control unit is predetermined as the elapsed time after transmission. By comparing the transmission prohibition time, it is determined whether or not to send the notification light emission command.

  The LED lighting system provided by the sixth aspect of the present invention includes an LED lighting apparatus provided by the fifth aspect of the present invention, a light receiving unit that receives light from the light emitting unit, and the light receiving unit includes the above-described light receiving unit. An e-mail transmission unit that transmits an e-mail when receiving light according to the notification light emission pattern and a communication unit that transmits an e-mail from the e-mail transmission unit to a public communication line are provided.

  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 sectional drawing which shows the LED bulb based on 1st Embodiment of this invention. It is sectional drawing which shows the light emission part of the LED bulb of FIG. It is a perspective view which shows the power supply part cover of FIG. It is sectional drawing which follows the IV-IV line of FIG. It is a perspective view which shows the modification of a power supply part cover. FIG. 6 is a cross-sectional view taken along line VI-VI of an LED bulb using the power supply unit cover of FIG. 5. It is sectional drawing which shows the LED bulb based on 2nd Embodiment of this invention. It is sectional drawing which shows an example of the conventional LED bulb. It is a whole schematic diagram showing an LED lighting system based on a first embodiment of another aspect of the present invention. It is a system block diagram which shows the LED lighting fixture used for the LED lighting system of FIG. It is a flowchart which shows operation | movement of the LED lighting fixture of FIG. It is a whole schematic diagram which shows the LED lighting system based on 2nd Embodiment of the other aspect of this invention. It is a system block diagram which shows the LED lighting system of FIG. It is a flowchart which shows operation | movement of the LED lighting fixture of FIG. It is a whole schematic diagram which shows the LED lighting system based on 3rd Embodiment of the other side of this invention. It is a whole schematic diagram which shows the LED lighting system based on 4th Embodiment of the other aspect of this invention. It is a front view which shows the LED lighting fixture used for the LED lighting system of FIG. It is sectional drawing which follows the XVIII-XVIII line of FIG. It is principal part sectional drawing which follows the XIX-XIX line | wire of FIG. It is a system block diagram which shows the LED lighting system of FIG. It is a flowchart which shows operation | movement of the LED illumination system of FIG.

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

  1 and 2 show an LED bulb according to a first embodiment of the present invention. The LED bulb 101 of the present embodiment includes a light emitting unit 200, a heat radiating member 300, a power supply unit cover 400, a power supply unit 530, a globe 510, and a base 520. The LED bulb 101 is intended to be used as a substitute for an incandescent bulb, and is used in place of, for example, a krypton bulb.

  In the present embodiment, the light emitting unit 200 has a rectangular thin plate shape as a whole, and includes an LED substrate 210, a plurality of LED chips 220, a sealing resin 230, and a weir unit 240 as shown in FIG. Yes. The LED substrate 210 has a rectangular shape and is made of ceramics such as alumina. A plurality of LED chips 220 are mounted on the LED substrate 210 and a wiring pattern (not shown) serving as a path for supplying power to these LED chips 220 is formed.

  Each LED chip 220 has, for example, a p-type semiconductor layer made of a GaN-based semiconductor material, an n-type semiconductor layer, and an active layer sandwiched between these p-type semiconductor layer and n-type semiconductor layer. To emit. In the present embodiment, the LED chip 220 is a so-called two-wire type that is connected to the wiring pattern of the LED substrate 210 described above via two wires. Or a flip chip type. The plurality of LED chips 220 are arranged in a matrix on the LED substrate 210.

  The sealing resin 230 seals the plurality of LED chips 220 and is made of a resin material such as a silicone resin or an epoxy resin that transmits light from the LED chips 220. The dam portion 240 is formed in a rectangular frame shape on the LED substrate 210 and is made of, for example, a white silicone resin. In the formation of the sealing resin 230, the dam portion 240 prevents the liquid resin material from flowing out to an unintended region by blocking the liquid resin material.

  As shown in FIG. 1, the heat radiating member 300 functions to support the light emitting unit 200 and to transmit heat from the light emitting unit 200 to the outside. As a material of the heat radiating member 300, a material having high thermal conductivity is preferable. For example, a metal such as aluminum is used. In the present embodiment, the heat dissipating member 300 is integrally molded, but unlike this, it may be composed of a plurality of parts.

  The heat radiating member 300 has a support plate part 310, a thick part 361, and a thin part 362. The heat dissipation member 300 has an opening 330 on the lower side in the figure. Inside the opening 330 is a power source housing space 320.

  The support plate portion 310 has a disc shape and has a main surface 311 and a back surface 312. The light emitting unit 200 is attached to the main surface 311. Two through holes 313 are formed in the support plate portion 310.

  The thick portion 361 is connected to the support plate portion 310 and has a deformed cylindrical shape. The thick part 361 becomes thinner as it goes from the support plate part 310 to the opening 330. The thin portion 362 is connected to the thick portion 361 and has a cylindrical shape. The thin portion 362 has a thickness equal to or less than the thickness of the thick portion 361. The power supply unit accommodation space 320 is a space surrounded by the support plate part 310, the thick part 361, and the thin part 362, and is defined by the back surface 312 and the inner surface 321 as the bottom surface.

  The power supply unit 530 generates DC power suitable for lighting the light emitting unit 200 (LED chip 220) from, for example, a commercial AC 100V power supply, and supplies this DC power to the light emitting unit 200 (LED chip 220). A power supply board 531, a plurality of electronic components 532, and a cable 533 are provided.

  The power supply substrate 531 is made of, for example, a glass composite copper-clad laminate and has a circular shape as a whole. A plurality of electronic components 532 are mounted on the lower surface of the power supply substrate 531 in the drawing. The plurality of electronic components 532 function to convert, for example, a commercial AC 100V power source into DC power suitable for lighting the light emitting unit 200 (LED chip 220). The plurality of electronic components 532 include, for example, a capacitor, a resistor, a coil, a diode, an IC, and the like. For example, in FIG. 1, the electronic component 532 that protrudes most downward in the drawing is a capacitor.

  The cable 533 is for guiding DC power from the plurality of electronic components 532 to the light emitting unit 200.

  The power supply unit cover 400 accommodates the power supply unit 530 and is accommodated in the power supply unit accommodation space 320 of the heat dissipation member 300. In the present embodiment, the power supply unit cover 400 includes a bottom plate part 410, a heat insulating part 420, a heat radiating part 430, and a flange part 440. The material of the power source cover 400 is preferably an insulating material, for example, an insulating resin.

  As shown in FIG. 1 and FIG. 3, the bottom plate portion 410 is located at a position facing the back surface 312 of the support plate portion 310 of the heat dissipation member 300, and has a disk shape, for example. In the present embodiment, a plurality of bottom plate protrusions 411 are formed on the bottom plate portion 410. Each bottom plate protrusion 411 has a columnar shape, and the upper end in the drawing is in contact with the back surface 312 of the support plate 310 of the heat dissipation member 300. Thereby, a gap is generated between the bottom plate portion 410 and the back surface 312 of the support plate portion 310 of the heat dissipation member 300. In addition, two through holes 412 are formed in the bottom plate portion 410. The through hole 412 is for inserting the cable 533 of the power supply unit 530. The cable 533 is inserted through the through hole 313 of the support plate portion 310 of the heat dissipation member 300.

  The heat insulating part 420 is connected to the bottom plate part 410 and has a cylindrical shape. The outer diameter of the heat insulating portion 420 is set to be smaller than the inner diameter of the inner side surface 321 of the heat radiating member 300, and the heat insulating portion 420 is separated from the inner side surface 321 over the entire circumference.

  The heat dissipating part 430 is connected to the heat insulating part 420 and has a cylindrical shape. As shown in FIG. 1, FIG. 3, and FIG. 4, the outer diameter of the heat dissipating part 430 is larger than the outer diameter of the heat insulating part 420 and can be fitted to the inner side 321 of the heat dissipating member 300. Has been. Thereby, the heat radiating portion 430 is in contact with the inner side surface 321.

  Positioning protrusions 431 are formed on the heat dissipation part 430. In the present embodiment, the positioning protrusion 431 protrudes further outward from the heat radiating portion 430 and extends long in the direction from the back surface 312 of the heat radiating member 300 toward the opening 330. As shown in FIG. 4, the positioning protrusion 431 is fitted in a positioning groove 340 formed in the heat dissipation member 300.

  The flange portion 440 extends outward from the lower end of the heat dissipation portion 430 and is interposed between the heat dissipation member 300 and the base 520. The outer peripheral surface of the collar part 440 is exposed to the outside. The vertical dimension in the figure of the part exposed to the outside of the collar part 440 is, for example, about 4 mm. A housing groove 441 is formed in the flange portion 440. The accommodation groove 441 is formed over the entire circumference of the flange portion 440, and the opening side end 350 of the heat dissipation member 300 is fitted therein.

  The globe 510 surrounds the light emitting unit 200 and transmits light emitted from the light emitting unit 200. Furthermore, in the present embodiment, the globe 510 is configured to transmit light while diffusing it. Such a glove 510 is made of, for example, milky white translucent resin. The globe 510 has a partial spherical shape, and its diameter is about 35 mm.

  The base 520 is a part that is attached to, for example, a general lighting device for a light bulb that complies with JIS standards. In the present embodiment, the base 520 is configured to satisfy the specification of E17 defined in the JIS standard. The base 520 is connected to the power supply unit 530 by wiring.

  Next, the operation of the LED bulb 101 will be described.

  According to the present embodiment, heat from the light emitting unit 200 is transmitted to the heat radiating member 300. For this reason, the temperature distribution of the heat dissipation member 300 is high on the main surface 311 side and low on the opening 330 side. Since the power supply unit cover 400 is spaced from the back surface 312, it is difficult to receive heat from the light emitting unit 200. Therefore, it is possible to prevent the plurality of electronic components 532 constituting the power supply unit 530 from being deteriorated by heat. In particular, since an electrolytic capacitor, a coil, an IC, and the like among the plurality of electronic components 532 are easily deteriorated by heat, the electronic components 532 can be protected.

  The base plate protrusion 411 is brought into contact with the back surface 312 of the heat radiating member 300 so that the power source cover 400 can be positioned relative to the heat radiating member 300. In addition, a gap can be reliably ensured between the bottom plate portion 410 and the back surface 312.

  By providing the through hole 313 and the through hole 412, a path for guiding power from the power supply unit 530 to the light emitting unit 200 can be appropriately arranged. A gap between the back surface 312 and the bottom plate portion 410 can be utilized as a space for housing the cable 533.

  By providing a gap between a portion of the heat dissipation member 300 near the support plate 310 that is at a relatively high temperature and the heat insulating portion 420, heat from the light emitting unit 200 is excessively transmitted to the power source cover 400. Can be prevented.

  By bringing the portion near the opening 330 having a relatively low temperature in the heat radiating member 300 into contact with the heat radiating unit 430, heat from the power source unit 530 can be appropriately transmitted to the heat radiating member 300 through the power source unit cover 400. it can.

  By forming the thick portion 361 in the heat radiating member 300, it is possible to increase the heat capacity of the portion that is relatively high temperature, and to prevent a part of the heat radiating member 300 from becoming excessively high temperature. Can do.

  By fitting the positioning protrusion 431 and the positioning groove 340, the power source cover 400 can be reliably positioned with respect to the heat radiating member 300. By providing the positioning protrusion 431 on the heat radiating part 430, it is possible to increase the contact area between the heat radiating part 430 and the heat radiating member 300 and to avoid increasing the contact area between the heat insulating part 420 and the heat radiating member 300. it can.

  By interposing the flange portion 440 that is a part of the power source cover 400 made of an insulating resin between the heat dissipation member 300 and the base 520, the insulation between the heat dissipation member 300 and the base 520 can be enhanced. By exposing the flange portion 440 to the outside, it is possible to increase the distance necessary for conducting the heat radiating member 300 and the base 520, and it is possible to suitably prevent short-circuiting.

  5-7 illustrate an LED bulb according to 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.

  5 and 6 show a modification of the power source cover 400 and an LED bulb 101 using the same. As shown in FIG. 5, in the present modification, the configuration of the bottom plate protrusion 411 is a lattice shape unlike the power supply cover 400 described above. More specifically, it has a structure in which two upper walls that are orthogonal to each other are joined. In the present modification, a plurality of heat insulating portion protrusions 421 are formed on the heat insulating portion 420. The heat insulating portion protrusion 421 extends long in the direction from the back surface 312 of the heat dissipation member 300 toward the opening 330. As clearly shown in FIG. 6, the plurality of heat insulating portion protrusions 421 are in contact with the inner surface 321 of the heat dissipation member 300.

  Also according to this modification, a gap can be appropriately ensured between the back surface 312 of the heat dissipation member 300 and the bottom plate portion 410 of the power supply unit cover 400. By providing the heat insulating portion protrusion 421 on the heat insulating portion 420, the power supply portion cover 400 can be appropriately positioned with respect to the heat radiating member 300 while ensuring a gap between the heat insulating portion 420 and the inner side surface 321.

  FIG. 7 shows an LED bulb according to a second embodiment of the present invention. The LED bulb 102 of the present embodiment is different from the LED bulb 101 described above in the configuration of the heat dissipation member 300. In the present embodiment, the heat dissipation member 300 has a uniform thickness portion 363.

  The uniform thickness portion 363 is connected to the support plate portion 310 and has a deformed cylindrical shape. The uniform thickness portion 363 has a constant thickness, and is preferably 0.5 to 1.0 mm. The uniform thickness portion 363 has a smaller diameter as a portion closer to the support plate portion 310 is farther from the support plate portion 310. There is a relatively large gap between this portion and the power source cover 400. A portion near the opening 330 in the uniform thickness portion 363 has a cylindrical shape with a constant diameter. This portion is in contact with the heat radiating portion 430 of the power source cover 400.

  According to the present embodiment, the portion of the heat radiating member 300 that has a relatively high temperature is not so thick. The thinner the thickness, the smaller the temperature difference between the front and back surfaces, and the thermal stress is alleviated. Moreover, a large gap can be provided between the uniform thickness portion 363 and the heat insulating portion 420 by making the portion near the support plate portion 310 relatively large in diameter. On the other hand, heat transfer from the power source cover 400 to the heat radiating member 300 can be promoted by making the portion of the uniform thickness portion 363 close to the opening 330 sized so as to contact the heat radiating portion 430.

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

  FIG. 9 shows an LED lighting system according to a first embodiment of another aspect of the present invention. The LED lighting system 611 of this embodiment includes an LED lighting device 601 and a wireless LAN router 710. The LED lighting system 611 notifies the personal computer 811 and the mobile phone 813 via the Internet 810 that the user has used the LED lighting fixture 601 in addition to the use of the LED lighting fixture 601 at the installation location. Play a role.

  In this embodiment, the LED lighting device 601 is configured as a pendant lighting device used for dining in a general home. As illustrated in FIGS. 9 and 10, the LED lighting apparatus 601 includes a light emitting unit 620, an LED driver 630, a power supply unit 640, a control unit 650, and a wireless transmission unit 660. In FIG. 10, a path indicated by a solid line is a power path, and a path indicated by a dotted line is a control signal path.

  The light emitting unit 620 includes a plurality of LED chips 621, and in the present embodiment, has an annular shape. The light emitting unit 620 emits white light such as daylight color or light bulb color.

  The power supply unit 640 converts, for example, commercial AC 100V power into DC power suitable for causing the LED chips 621 to emit light. The power supply unit 640 is configured by, for example, a coil, a capacitor, a resistor, and the like. The power supply unit 640 includes a switch unit 670. The switch unit 670 has a string for performing a power ON / OFF operation by pulling the user. Each time the string is pulled, the light emitting unit 200 repeats turning on and off.

  The LED driver 630 is a driver element that supplies DC power received from the power supply unit 640 to a desired LED chip 621. The brightness of each LED chip 621 is controlled by the LED driver 630.

  The control unit 650 controls the overall operation of the LED lighting apparatus 601 and includes, for example, a CPU, a memory, an interface, and the like. In the present embodiment, the operation of turning on and off by the switch unit 670 is transmitted to the control unit 650 via the photocoupler 641. The photocoupler 641 is suitable for switching between a power path having relatively high power and a control signal path having relatively low power while insulating the power path. As will be described later, the control unit 650 has a function of transmitting an e-mail as a notification signal when the light emitting unit 620 is turned on under certain conditions.

  The wireless transmission unit 660 has a function of wirelessly transmitting an electronic mail from the control unit 650 by wireless communication conforming to the IEEE 802.11 standard or the IEEE 802.15 standard.

  The operation of the LED lighting apparatus 601 will be described with reference to FIG.

  First, the power supply unit 640 is connected to a commercial AC 100V power supply, whereby the operation of the LED lighting apparatus 601 starts (step S10). Next, by monitoring the signal from the photocoupler 641, it is determined whether or not the lighting operation by the switch unit 670 has been performed (step S11). If the lighting operation has not been performed (step S11-N), step S11 is repeated. If the lighting operation is performed (step S11-Y), the control unit 650 transmits an e-mail (step S12). This e-mail is transmitted to the address stored in advance in the memory of the control unit 650 using the text stored in advance. As an example of the address, a relative who lives in an area away from the user of the LED lighting apparatus 601 can be cited. As an example of the text, a text such as “LED luminaire has been turned on” can be cited.

  The electronic mail transmitted from the control unit 650 is wirelessly transmitted from the wireless transmission unit 660 to the wireless LAN router 710 as shown in FIG. The wireless LAN router 710 is connected to the Internet 810, and transmits the electronic mail from the control unit 650 to the personal computer 811 used by the relative in the remote area via the Internet 810. In addition, the electronic mail from the control unit 650 is transmitted from the Internet 810 to the mobile phone 813 used by the relative in the remote area via the mobile phone communication network 812.

  After the e-mail is transmitted, a timer process is performed by the time measuring unit 651 provided in the control unit 650 shown in FIG. 10 (step S13 in FIG. 11). This timer process measures the elapsed time T after transmission, and the elapsed time T after transmission corresponds to the time that has elapsed since the most recent e-mail was transmitted. The control unit 650 compares the post-transmission elapsed time T with a predetermined transmission prohibition time T1 (step S14). The transmission prohibition time T1 is a time that must elapse after a certain e-mail is transmitted until the next e-mail is transmitted. For example, one day (24 hours) is set. If the post-transmission elapsed time T is not longer than the transmission prohibition time T1 (step S14-N), step S14 is repeated. If the post-transmission elapsed time T is longer than the transmission prohibition time T1 (step S14-Y), the process returns to step S11.

  Next, the operation of the LED lighting apparatus 601 and the LED lighting system 611 will be described.

  According to the present embodiment, when the user uses the LED lighting apparatus 601, the fact that the LED lighting apparatus 601 has been used by an e-mail is transmitted to a close relative living in a remote area. The LED lighting apparatus 601 is indispensable for daily life, and is usually turned off at night and turned on together with getting up. Therefore, the user who does not have special knowledge can inform the relative who lives in the remote area that the user is spending daily life without any special operation.

  The form in which the lighting operation is performed by the switch unit 670 having a string is particularly suitable for the lighting operation that is easy for an elderly user without being confused.

  By comparing the post-transmission elapsed time T with the transmission prohibition time T1, the e-mail is not transmitted when the post-transmission elapsed time T is shorter than the transmission prohibition time T1. Thereby, even if a user repeats lighting operation of the LED lighting apparatus 601 frequently during the day, it is possible to avoid a large number of emails being sent to the close relative in a short time.

  12 to 21 show an LED lighting apparatus and an LED lighting system according to another embodiment of another aspect 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.

  12 and 13 show an LED lighting apparatus and an LED lighting system according to a second embodiment of another aspect of the present invention. In the LED lighting apparatus 602 of the present embodiment, the control unit 650 issues a notification signal each time a lighting operation is performed by the switch unit 670. The control unit 650 of the present embodiment is not provided with the above-described timer unit 651. The notification signal from the control unit 650 is transmitted by the wireless transmission unit 660. This notification signal is not an electronic mail but a mere digital signal indicating that a lighting operation has been performed.

  The LED lighting system 612 includes a gateway 720 and a router 730. The gateway 720 includes a wireless reception unit 721, an e-mail transmission unit 722, and a timer unit 723. The wireless reception unit 721 receives the notification signal from the wireless transmission unit 660 by wireless communication (for example, ZigBee (registered trademark)) compliant with, for example, the IEEE 802.11 standard or the IEEE 802.15 standard.

  FIG. 14 shows an e-mail transmission process in the gateway 720. When the power is turned on (step S21), the communication from the wireless transmission unit 660 is waited (step S21). When the notification signal is not received from the wireless transmission unit 660 (step S21-N), step S21 is repeated. When the notification signal is received from the wireless transmission unit 660 (step S21-Y), the e-mail transmission unit 722 transmits an e-mail (step S22). This electronic mail is transmitted from the router 730 to the Internet 810.

  After the e-mail is transmitted, a timer process is performed by the timer 723 shown in FIG. 13 (step S23 in FIG. 14). This timer process measures the elapsed time T after transmission, and the elapsed time T after transmission corresponds to the time that has elapsed since the most recent e-mail was transmitted. The post-transmission elapsed time T is compared with a predetermined transmission prohibition time T1 (step S24). If the post-transmission elapsed time T is not greater than the transmission prohibition time T1 (step S24-N), step S24 is repeated. If the post-transmission elapsed time T is longer than the transmission prohibition time T1 (step S24-Y), the process returns to step S21.

  According to such an embodiment, it is possible to inform a close relative living in a remote area that the user is spending his daily life unchanged. In addition, the configuration of the LED lighting apparatus 602 can be simplified by providing the gateway 720 with a function of transmitting an e-mail and a function of measuring the elapsed time T after transmission.

  FIG. 15 shows an LED lighting apparatus and LED lighting system according to a third embodiment of another aspect of the present invention. The LED lighting system 613 of this embodiment includes an LED lighting fixture 603, a gateway 720, and a router 730. The LED lighting fixture 603 transmits a notification signal similar to the LED lighting fixture 602 described above. This transmission is performed using light from the light emitting unit 620. For example, when the light emitting unit 620 is operated from a light-off state to a lighted state, the LED driver 630 turns on the light emitting unit 620 with a predetermined notification pattern according to a command from the control unit 650. The notification pattern is a pattern in which the light emitting unit 620 is turned on for a predetermined time and number of times, for example, in a period of about several tens to several hundreds ms.

  The gateway 720 includes a light receiving unit 724. The light receiving unit 724 has a photoelectric conversion function that generates an electromotive force corresponding to the intensity of received light, and converts light from the light emitting unit 620 into an electrical signal. When the light emitting unit 620 lights up with the above-described light emission pattern, the light receiving unit 724 generates an electrical signal corresponding to the notification pattern. In the gateway 720, the electric signal based on this notification pattern is handled as the notification signal described above. Thereby, the e-mail transmission processing shown in FIG. 14 is realized.

  According to such an embodiment, wireless communication using illumination light is possible without providing communication means using radio waves, and the system configuration of the LED illumination system 613 can be simplified.

  16 and 20 show an LED lighting apparatus and an LED lighting system according to a fourth embodiment of another aspect of the present invention. The LED lighting apparatus 604 of this embodiment is used as an alternative to a straight tube fluorescent lamp. As shown in FIGS. 17 to 20, the LED lighting apparatus 604 includes a tube 691, a base 692, a light emitting unit 620, an LED driver 630, a power supply unit 640, a control unit 650, a wireless transmission unit 660, and a human sensor 680. ing.

  The tube 691 has a cylindrical shape and is made of, for example, a translucent milky white resin. The base 692 is disposed at both ends of the tube 961 and is a part for connecting to a power supply unit for a straight tube fluorescent lamp.

  The light emitting unit 620 has a plurality of LED chips 621. The power supply unit 640 converts commercial AC 100V power into DC power suitable for lighting the plurality of LED chips 621. The LED driver 630 is responsible for lighting control of the individual LED chips 621. The control unit 650 and the wireless transmission unit 660 perform the same function as in the first embodiment described above.

  The human sensor 680 emits a sensing signal by sensing infrared rays emitted by the user, for example. In the case where the human sensor 680 has a configuration using, for example, a pyroelectric sensor, a sensing signal is generated when the user enters the sensing area.

  FIG. 21 shows the operation of the LED lighting apparatus 604. First, the power supply unit 640 is connected to a commercial AC 100V power supply, whereby the operation of the LED lighting apparatus 604 starts (step S30). Next, it is determined whether the user is sensed by the human sensor 680 (step S31). If the user is not detected (step S31-N), step S31 is repeated. If the user is detected (step S31-Y), the control unit 650 transmits an e-mail (step S32).

  The electronic mail transmitted from the control unit 650 is wirelessly transmitted from the wireless transmission unit 660 to the wireless LAN router 710 as shown in FIG. The wireless LAN router 710 transmits the electronic mail from the control unit 650 to the personal computer 811 used by the relative in the remote area via the Internet 810. In addition, the electronic mail from the control unit 650 is transmitted from the Internet 810 to the mobile phone 813 used by the relative in the remote area via the mobile phone communication network 812.

  After the e-mail is transmitted, a timer process is performed by the time measuring unit 651 provided in the control unit 650 shown in FIG. 20 (step S33 in FIG. 21). This timer process measures the elapsed time T after transmission, and the elapsed time T after transmission corresponds to the time that has elapsed since the most recent e-mail was transmitted. The control unit 650 compares the post-transmission elapsed time T with a predetermined transmission prohibition time T1 (step S34). The transmission prohibition time T1 is a time that must elapse after a certain e-mail is transmitted until the next e-mail is transmitted. For example, one day (24 hours) is set. If the post-transmission elapsed time T is not longer than the transmission prohibition time T1 (step S34-N), step S34 is repeated. If the post-transmission elapsed time T is longer than the transmission prohibition time T1 (step S34-Y), the process returns to step S31.

  According to the present embodiment, it is possible to turn on the LED lighting device 604 and to inform a close relative in the remote area that the LED lighting device 604 has been turned on without the user performing a lighting operation.

DESCRIPTION OF SYMBOLS 101,102 LED bulb 200 Light emission part 210 LED board 220 LED chip 230 Sealing resin 240 Weir part 510 Globe 520 Base 530 Power supply part 531 Power supply board 532 Electronic component 533 Cable 300 Heat radiation member 310 Support plate part 311 Main surface 312 Back surface (bottom surface) )
313 Through-hole 320 Power supply unit accommodating space 321 Inner side surface 330 Opening 340 Positioning groove 350 Opening side end 361 Thick part 362 Thin part 363 Uniform thickness part 400 Power supply cover 410 Bottom plate part 411 Bottom plate part projection 412 Through hole 420 Thermal insulation part 421 Thermal insulation Part projection 430 Heat radiation part 431 Positioning projection 440 Gutter part 441 Housing groove 601-604 LED lighting fixtures 611-614 LED lighting system 620 Light emitting part 621 LED chip 630 LED driver 640 Power supply part 641 Photocoupler 650 Control part 651 Timekeeping part 660 Wireless transmission Unit 670 Switch unit 680 Human sensor 691 Tube 692 Base 710 Wireless LAN router (wireless reception unit, communication unit)
720 Gateway 721 Wireless reception unit 722 E-mail transmission unit 723 Timing unit 724 Light reception unit 730 Router (communication unit)
810 Internet (public communication line)
811 PC 812 Mobile phone communication network 813 Mobile phone

Claims (30)

A light emitting unit having one or more LED chips;
A glove surrounding the light emitting part and transmitting light from the light emitting part;
A heat dissipating member that supports the light emitting unit and the globe and has a power source housing space having an opening on the side opposite to the side on which the light emitting unit is attached,
A power supply unit that is housed in the power supply unit housing space and supplies power to the light emitting unit;
A base located on the side opposite to the globe with respect to the heat radiating member, and
The heat radiating member has the light emitting portion disposed on the main surface, the opposite side of the main surface being a back surface forming the bottom surface of the power source housing space, and a direction extending from the back surface toward the opening. Has an inside surface,
An LED bulb, comprising: a power supply unit cover that accommodates the power supply unit in the power supply unit accommodating space and is disposed with a gap between at least a part of the back surface and the inner side surface. The power source cover has a bottom plate portion facing the back surface,
The LED bulb according to claim 1, wherein the bottom plate portion is formed with a bottom plate protrusion capable of contacting the back surface.   The LED bulb according to claim 2, wherein the bottom plate portion protrusion has a cylindrical shape.   The LED light bulb according to claim 2, wherein the bottom plate protrusion is configured by a plurality of wall-shaped portions intersecting each other.   5. The LED bulb according to claim 2, wherein the bottom plate portion has a through-hole into which a cable from the power supply portion is inserted at a position avoiding the bottom plate portion protrusion.   The power source cover has a larger contact area between the heat insulating portion having a gap between the heat radiating member and the inner side surface and the inner side surface than the heat insulating portion, and closer to the opening than the heat insulating portion. The LED lightbulb according to claim 2, further comprising a heat dissipating part located at the position.   The said heat insulation part is a LED light bulb of Claim 6 which has the heat insulation part protrusion which contact | connects the said inner surface.   The LED light bulb according to claim 7, wherein the heat insulating portion protrusion extends long in a direction from the back surface toward the opening.   9. The LED bulb according to claim 6, wherein the heat radiating portion has a larger cross-sectional dimension than the heat insulating portion, and is in contact with the inner side surface over the entire circumference. On the inner side surface, a positioning groove is formed which is located near the opening and extends from the back surface toward the opening,
The LED light bulb according to claim 6, wherein a positioning projection that fits into the positioning groove is formed on the power source cover.   The LED bulb according to claim 10, wherein the positioning protrusion is formed on the heat dissipation portion.   The LED light bulb according to any one of claims 6 to 11, wherein the power source cover is made of an insulating material and is interposed between the heat dissipation member and the base.   The LED light bulb according to claim 12, wherein the power supply unit cover includes a flange portion that is sandwiched between the heat dissipation member and the base and exposed to the outside.   The LED bulb according to claim 13, wherein the flange has an accommodation groove for accommodating the opening side end of the heat dissipation member.   The LED light bulb according to any one of claims 6 to 14, wherein the heat radiating member has a thick part located on the back surface side and a thin part located on the opening side and thinner than the thick part.   The LED light bulb according to claim 15, wherein the heat radiating portion of the power source cover is in contact with the thin portion of the heat radiating member.   The LED heat bulb according to claim 6, wherein the heat dissipation member surrounds the power supply unit cover and has a uniform thickness portion having a uniform thickness.   The said uniform thickness part is an LED bulb | bulb of Claim 17 which has a part from which the cross-sectional shape becomes large as it goes to the said back surface from the said opening.   The LED bulb according to claim 17 or 18, wherein the uniform thickness portion has a thickness of 0.5 to 1.0 mm. A light emitting unit comprising one or more LED chips;
A power supply unit for supplying power to the light emitting unit;
An LED driver for controlling light emission of the light emitting unit;
A control unit that sends a lighting control command for changing the lighting state of the light emitting unit to the LED driver, and
The control unit outputs a notification command signal when the LED driver lights the light emitting unit,
An LED lighting apparatus comprising a wireless transmission unit that wirelessly transmits a notification signal by receiving the notification command signal.   The LED lighting apparatus according to claim 20, further comprising a switch unit that has a hanging string pulled by a user and that switches a lighting state of the light emitting unit when the hanging string is pulled. It is equipped with a human sensor that outputs a human signal when a user enters the sensing area.
The said control part is an LED lighting fixture of Claim 20 or 21 which sends the said lighting control instruction | command to the said LED driver based on the said human sensitive signal from the said human sensitive sensor.   The LED lighting apparatus according to claim 20, wherein the notification signal is an e-mail. It has a timekeeping section that keeps track of the time elapsed since the e-mail was sent,
24. The LED lighting apparatus according to claim 23, wherein the control unit determines whether or not to transmit an e-mail by comparing the elapsed time after transmission with a predetermined transmission prohibition time. LED lighting fixture according to claim 23 or 24;
A wireless receiver that receives an email as the notification signal from the wireless transmitter;
A communication unit that transmits an e-mail as the notification signal to a public communication line;
An illumination system comprising: LED lighting fixture according to any of claims 20 to 22,
A wireless receiver for receiving the notification signal from the wireless transmitter;
An e-mail transmission unit that transmits an e-mail when the wireless reception unit receives the notification signal;
A lighting system comprising: a communication unit that transmits an electronic mail from the electronic mail transmission unit to a public communication line. The electronic mail transmitting unit includes a time measuring unit for measuring an elapsed time after transmission from the time when the electronic mail is transmitted;
27. The LED lighting system according to claim 26, wherein the e-mail transmission unit determines whether or not to transmit an e-mail by comparing the elapsed time after transmission with a predetermined transmission prohibition time. A light emitting unit comprising one or more LED chips;
A power supply unit for supplying power to the light emitting unit;
An LED driver for controlling light emission of the light emitting unit;
A control unit that sends a lighting control command for changing the lighting state of the light emitting unit to the LED driver, and
The control unit sends a notification light emission command to the LED driver when the LED driver lights the light emitting unit,
The LED lighting apparatus, wherein the LED driver causes the light emitting unit to emit light with a predetermined notification light emitting pattern. It has a timer that measures the elapsed time after transmission from the time when the notification light emission command is sent,
The said control part is an LED lighting fixture of Claim 28 which judges whether the said notification light emission instruction | command is sent by comparing the said elapsed time after transmission with the predetermined transmission prohibition time. LED lighting fixture according to claim 28 or 29;
A light receiving portion for receiving light from the light emitting portion;
An e-mail transmission unit that transmits an e-mail when the light-receiving unit receives light according to the notification light emission pattern; and
A lighting system comprising: a communication unit that transmits an electronic mail from the electronic mail transmission unit to a public communication line.

Images