WO2024009931A1 - Dispositif d'éclairage et système d'alimentation en énergie sans fil - Google Patents

Dispositif d'éclairage et système d'alimentation en énergie sans fil Download PDF

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Publication number
WO2024009931A1
WO2024009931A1 PCT/JP2023/024558 JP2023024558W WO2024009931A1 WO 2024009931 A1 WO2024009931 A1 WO 2024009931A1 JP 2023024558 W JP2023024558 W JP 2023024558W WO 2024009931 A1 WO2024009931 A1 WO 2024009931A1
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WO
WIPO (PCT)
Prior art keywords
lighting device
unit
power
power supply
antenna
Prior art date
Application number
PCT/JP2023/024558
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English (en)
Japanese (ja)
Inventor
直紀 田上
圭以 亀田
淳允 石森
Original Assignee
パナソニックＩｐマネジメント株式会社
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Publication of WO2024009931A1 publication Critical patent/WO2024009931A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F21V21/03—Ceiling bases, e.g. ceiling roses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a lighting device and a wireless power supply system.
  • Patent Document 1 discloses a lighting fixture having a wireless communication function.
  • An object of the present invention is to provide a lighting device and a wireless power supply system that are capable of wireless power supply.
  • a lighting device includes a power receiving unit that is connected to a structure to which a lighting fixture can be attached and receives AC power via the structure, and converts the AC power received by the power receiving unit into DC power.
  • a converting unit that converts the AC power into a wireless power source, a wireless power feeding unit that includes an antenna and supplies wireless power from the antenna using the DC power converted by the converting unit, and a wireless power feeding unit that supplies wireless power from the antenna using the DC power converted by the converting unit;
  • An illumination unit that emits illumination light.
  • a wireless power feeding system includes the lighting device according to the above one aspect and an electric device, and the electric device includes a power receiving antenna that receives radio waves for wireless power feeding radiated from the antenna; A charging circuit that charges a rechargeable battery using radio waves received by the power receiving antenna.
  • a lighting device and a wireless power supply system capable of wireless power supply can be provided.
  • FIG. 1 is a diagram showing a schematic configuration of a lighting device according to a first embodiment.
  • FIG. 2 is a plan view showing the positional relationship between the antenna and the casing of the lighting device according to the first embodiment.
  • FIG. 3 is a sectional view taken along line III-III in FIG. 2.
  • FIG. 4 is a cross-sectional view showing the positional relationship between the antenna and the casing of the lighting device according to Modification 1 of Embodiment 1.
  • FIG. 5 is a sectional view showing the positional relationship between the AC/DC conversion section and the wireless power supply section of the lighting device according to the second modification of the first embodiment.
  • FIG. 6 is a diagram showing a schematic configuration of a lighting device according to a third modification of the first embodiment.
  • FIG. 1 is a diagram showing a schematic configuration of a lighting device according to a first embodiment.
  • FIG. 2 is a plan view showing the positional relationship between the antenna and the casing of the lighting device according to the first embodiment.
  • FIG. 3 is
  • FIG. 7A is a perspective view showing the positional relationship between the wireless power feeding unit and the casing of the lighting device according to Modification 4 of Embodiment 1.
  • FIG. 7B is a cross-sectional view showing the positional relationship between the wireless power feeding unit and the casing of the lighting device according to Modification 4 of Embodiment 1.
  • FIG. 8 is a diagram showing a schematic configuration of a lighting device according to a fifth modification of the first embodiment.
  • FIG. 9 is a diagram showing a schematic configuration of a lighting device according to the second embodiment.
  • FIG. 10 is a diagram showing a schematic configuration of a lighting device according to a modification of the second embodiment.
  • FIG. 11 is a diagram showing a schematic configuration of a wireless power supply system according to Embodiment 3.
  • wireless power transfer methods include electromagnetic induction, magnetic field resonance, and electric field coupling, which enable close-range transmission.
  • a type of wireless microwave power supply system that spatially transmits energy using microwaves has been studied. Compared to the close-range transmission type, the wireless microwave power supply system allows for long-distance energy transmission. For this reason, a wider range of application is expected, and expectations are high for future developments in IoT (Internet of Things) and the like.
  • the wireless power supply device (lighting device) and wireless power supply system according to the present disclosure are compatible with the type that uses microwaves.
  • wireless power supply using microwaves which will be described later, is very promising for solving the above problems. This is because power can be wirelessly supplied to various sensors from a certain distance away while ensuring flexibility in installation location.
  • power receiving devices to which power can be transmitted include all kinds of electrical devices such as IoT devices such as smartphones and tablets, as well as earphones, PCs (Personal Computers), and other OA (Office Automation) devices. can be assumed.
  • the wireless power supply device can exhibit its effects more effectively when it is installed in the same location as the lighting device.
  • the wireless power supply device will inevitably be installed in almost the same location as the lighting device. , the above effects can be maximized. This idea itself contributes to solving problems that were not even recognized in the past, and leads to major technological advances.
  • each figure is a schematic diagram and is not necessarily strictly illustrated. Therefore, for example, the scales and the like in each figure do not necessarily match. Further, in each figure, substantially the same configurations are denoted by the same reference numerals, and overlapping explanations will be omitted or simplified.
  • the terms “upper” and “lower” do not refer to the upper direction (vertically upward) or the lower direction (vertically downward) in absolute spatial recognition, but are based on the stacking order in the stacked structure. Used as a term defined by the relative positional relationship. Additionally, the terms “above” and “below” are used not only when two components are spaced apart and there is another component between them; This also applies when two components are placed in close contact with each other.
  • ordinal numbers such as “first” and “second” do not mean the number or order of components, unless otherwise specified, and should be used to avoid confusion between similar components and to distinguish between them. It is used for the purpose of
  • the lighting device 1 is connected to the structure 2 and receives AC power from an AC power source 3.
  • the structure 2 is a structure to which a lighting fixture (not shown) can be attached.
  • the structure 2 is a socket (receiver) to which a cap is connected, a hook ceiling body, a wiring duct, a terminal block, or the like.
  • a ceiling light can be attached to the hanging ceiling body.
  • a spotlight can be attached to the wiring duct.
  • a base light or a downlight can be attached to the terminal block.
  • the lighting equipment includes a light bulb type lamp having an E-shaped base such as E11, E12, E17, and E26, a lighting device having a GX53-type base (conductive pin), and an L-shaped pin (for example, a Gx16t-5 type base). These include straight tube lamps, ceiling lights, spotlights, base lights, and downlights.
  • the cap is not limited to the example described above.
  • the cap may be a cap that can be used for a fluorescent lamp, specifically, a cap such as G13, G5, Rx17d, R17d, G10q, GU10q, GZ10q, GX10q, GY10q, GX24q, P21.
  • the base is a base that can be used for halogen light bulbs, specifically, GZ4, GU5.3, EZ10, G4, GY6.35, G6.35, EZ10, R7s, M ⁇ E ⁇ P, GYX9.5
  • the base may be GX16, G22, GX22, E ⁇ M ⁇ E ⁇ P, GY9.5, or the like.
  • the cap may be a cap that can be used for a high-intensity discharge lamp (HID lamp), specifically, a cap of EU10, E39, PG-12-2, RX7s, BY22d, or the like.
  • the cap may be a cap described in JIS C7709-2.
  • the structure 2 may be a receiver to which the cap described above can be attached, or a receiver to which a cap described in JIS C7709- can be attached.
  • the structure 2 is fixed to a predetermined surface such as a ceiling surface or a wall surface, for example.
  • a ceiling surface or a wall surface near the ceiling is a place where there are few obstacles. Therefore, when the lighting fixture is attached to the structure 2, the space can be illuminated without being obstructed by obstacles.
  • a place with few obstacles is also a good condition for the lighting device 1 that performs wireless power supply. This is because the lighting device 1 according to the present embodiment supplies power wirelessly, specifically by using radio waves. However, when an obstacle includes metal, the radio waves are transmitted by the metal. will be cut off. Therefore, in a place where there are few obstacles, there are also few metals that block radio waves, so a wide power supply range by the lighting device 1 can be ensured.
  • the structure 2 (hanging ceiling) for attaching a ceiling light is often located at the center of the indoor ceiling. Therefore, when the lighting device 1 is connected to the structure 2, power can be supplied from the center of the room. By emitting radio waves in all directions, power can be effectively supplied to a wide area indoors.
  • An AC power source 3 is connected to the structure 2.
  • the lighting device 1 can illuminate the space based on the AC power received from the AC power source 3.
  • the AC power supply 3 is, for example, a commercial power supply that supplies 100V or 240V AC power. Note that the magnitude of the AC power is not particularly limited. Further, the AC power source 3 is not limited to a commercial power source, and may be a power conditioner or the like that converts DC power supplied from a solar cell, a storage battery, or the like into AC power.
  • the lighting device 1 includes a power receiving section 10, an AC/DC converting section 20, a wireless power feeding section 30, a housing 40, a lighting section 60, and a control section 90.
  • the power reception unit 10, the AC/DC conversion unit 20, the wireless power supply unit 30, and the lighting unit 60 are electrically connected via conductive wiring.
  • the power receiving unit 10 is connected to the structure 2 and receives AC power via the structure 2.
  • the power receiving unit 10 is an E-type or GX53-type cap, or a cap having an L-shaped pin.
  • the power receiving unit 10 has a structure that can be connected when the structure 2 is a hook ceiling body, a wiring duct, or a terminal block.
  • the power receiving unit 10 is one or more conductive pins, an adapter, or the like.
  • the power receiving unit 10 is configured to be inseparable from the housing 40, the present invention is not limited to this.
  • the power receiving unit 10 may be fixed to the housing 40 (the main body of the lighting device 1) so as to be easily separable, like a so-called ceiling light adapter. Note that “unseparable” means that it cannot be separated without using a tool or without destruction. “Easily separable” means that it can be separated without destroying it manually.
  • the AC/DC converter 20 is a converter that converts AC power received by the power receiving unit 10 into DC power.
  • the AC/DC converter 20 includes a rectifier circuit, a voltage booster circuit, a voltage converter, and the like.
  • the AC/DC conversion unit 20 is provided to generate wireless power supply DC power used by the wireless power supply unit 30 and lighting DC power used by the lighting unit 60.
  • the AC/DC converter 20 includes, for example, a circuit board 22 (see FIG. 3) and a plurality of circuit elements (not shown) mounted on the circuit board 22.
  • the circuit board 22 is, for example, a printed wiring board, and includes wiring that electrically connects a plurality of circuit elements.
  • the plurality of circuit elements includes at least one of an integrated circuit (IC) element, a resistor, a diode, a transistor, a transformer, an inductor, a capacitor, and the like.
  • the wireless power feeding unit 30 has an antenna 31.
  • the antenna 31 is a power feeding antenna that radiates radio waves for wireless power feeding.
  • the radio waves are in the microwave band of 300 MHz or more and 300 GHz or less.
  • the wireless power supply section 30 converts the DC power converted by the AC/DC conversion section 20 into wireless power, and supplies the wireless power into the air from the antenna 31.
  • Wireless power supply (that is, wireless power supply) is performed, for example, using a method defined based on the ARIB (Association of Radio Industries and Businesses) standard.
  • the wireless power supply unit 30 uses radio waves with a frequency of 920 MHz and performs wireless power supply in the N0N or G1D radio wave format in accordance with ARIB-STD-T106.
  • the range of power feeding by the wireless power feeding unit 30 is, for example, a range of 3 m or less with respect to the antenna 31.
  • the height of the ceiling indoors in a typical building does not exceed 3 m, so when the lighting device 1 is connected to the structure 2 fixed to the ceiling, only the area directly under the structure 2 (lighting device 1) It is possible to make power supply radio waves reach a certain range without any problems. For example, if the structure 2 is placed at the center of the ceiling of a room measuring 4 m to 5 m square, electric waves for power supply can reach almost the entire area of the room.
  • the antenna 31 is a pattern antenna having wiring provided on a substrate.
  • the board is, for example, a printed wiring board.
  • the antenna 31 may be a rod-shaped antenna.
  • the type of antenna 31 is not particularly limited as long as it can radiate radio waves for power feeding.
  • the wireless power supply unit 30 includes a control board 32 (see FIG. 3).
  • the control board 32 includes a wireless circuit that uses the DC power converted by the AC/DC converter 20 to generate a power signal for radiating a power feeding radio wave from the antenna 31.
  • the control board 32 is, for example, a printed wiring board, and includes wiring that electrically connects a plurality of circuit elements that constitute a wireless circuit.
  • a plurality of circuit elements are mounted on the control board 32.
  • the plurality of circuit elements includes at least one of an integrated circuit (IC) element, a resistor, a diode, a transistor, a transformer, an inductor, a capacitor, and the like.
  • IC integrated circuit
  • the antenna 31 may be mounted on the control board 32. That is, the antenna 31 and the wireless circuit may be mounted on a common board and made into a module.
  • the housing 40 is, for example, a metal housing. Since metal has excellent heat conductivity, heat can be dissipated through the casing 40. By suppressing the temperature rise of the lighting device 1, it is possible to suppress the occurrence of failures in processing circuits and the like due to heat.
  • the housing 40 is formed by die casting or sheet metal processing.
  • the surface of the housing 40 may be coated with a resin material.
  • an insulating film may be formed on the outer surface and inner surface of the housing 40. Thereby, the occurrence of short circuits and leakage through the housing 40 can be suppressed.
  • the housing 40 may be made of resin.
  • the illumination unit 60 emits illumination light based on the AC power received by the power receiving unit 10. Specifically, the illumination unit 60 emits light based on the DC power converted by the AC/DC conversion unit 20.
  • the illumination unit 60 includes, for example, a light source board (not shown) and one or more light emitting elements (not shown) mounted on the board.
  • the light source board is, for example, a printed wiring board, and includes wiring that electrically connects one or more light emitting elements.
  • the one or more light emitting elements are elements that emit light using DC power generated by the AC/DC converter 20, and are, for example, LED (Light Emitting Diode) elements.
  • the LED element includes, for example, an LED chip that emits blue light and a yellow phosphor that is excited by the blue light emitted by the LED chip and emits yellow light.
  • White light which is a mixture of blue light emitted by the LED chip and yellow light emitted by the yellow phosphor, is emitted as illumination light.
  • the light emitting element may be a laser light emitting element or an organic EL (Electroluminescence) element.
  • the illumination light is not limited to white light, and may be colored light.
  • the illumination unit 60 may have a function of adjusting the intensity of the illumination light (a dimming function) and a function of adjusting the light color (color temperature) of the illumination light (a toning function). Light adjustment and color adjustment are performed, for example, by controlling the DC power supplied from the AC/DC converter 20.
  • control section 90 controls the illumination section 60 by controlling the AC/DC conversion section 20.
  • a switch may be disposed on the wiring included in the lighting device 1 to switch between conduction (on) and non-conduction (off) of the wiring.
  • the control unit 90 may control the on and off of the lighting unit 60 by controlling the on and off of the switch.
  • the control unit 90 is realized by, for example, an LSI (Large Scale Integration) that is an integrated circuit (IC).
  • the integrated circuit is not limited to an LSI, and may be a dedicated circuit or a general-purpose processor.
  • the control unit 90 may be a microcontroller.
  • a microcontroller includes, for example, a nonvolatile memory in which a program is stored, a volatile memory that is a temporary storage area for executing the program, an input/output port, a processor that executes the program, and the like.
  • the control unit 90 may be a programmable FPGA (Field Programmable Gate Array) or a reconfigurable processor in which connections and settings of circuit cells within the LSI can be reconfigured.
  • the functions executed by the control unit 90 may be realized by software or hardware.
  • control unit 90 may be configured integrally with the control board 32 of the wireless power supply unit 30 or the circuit board 22 of the AC/DC conversion unit 20.
  • control section 90 may be configured integrally with the light source board of the illumination section 60.
  • control unit 90 is housed inside the housing 40, the present invention is not limited thereto. At least a portion of the control unit 90 may be placed outside the housing 40.
  • the control unit 90 may be attached to the outer surface of the housing 40.
  • the control unit 90 may be disposed apart from the housing 40 and connected to the lighting unit 60 in a wired or wireless communicable manner.
  • the control unit 90 may be included in an operation terminal placed on a wall in the space.
  • the control unit 90 may be included in a remote controller or a mobile terminal such as a smartphone.
  • control unit 90 receives infrared rays or radio waves based on Bluetooth (registered trademark) or Wi-Fi (registered trademark), and controls the lighting unit 60 based on control information included in the received infrared rays or radio waves. You may.
  • the lighting device 1 By providing the lighting device 1 with the control unit 90, turning on and off of the lighting unit 60 can be controlled. Note that the lighting device 1 does not need to include the control unit 90.
  • FIG. 2 is a plan view showing the positional relationship between the antenna 31 of the lighting device 1 and the convex portion 41 of the housing 40 according to the present embodiment.
  • FIG. 3 is a sectional view taken along line III-III in FIG. 2.
  • the antenna 31 is placed outside the metal casing 40. Thereby, it is possible to prevent the housing 40 from blocking the radio waves radiated from the antenna 31.
  • the control board 32 including the wireless circuit is housed inside the casing 40.
  • the antenna 31 and the control board 32 are electrically connected via a lead wire or a connector (not shown).
  • the housing 40 is provided with a through hole for passing a lead wire or a connector.
  • the housing 40 has a protrusion 41.
  • the convex portion 41 is an example of an uneven portion.
  • the protrusion 41 is a part of the outer wall of the housing 40 that is formed so as to protrude outward.
  • a recessed portion is formed on the inner space side of the housing 40.
  • the internal space of the housing 40 can be partially expanded.
  • a circuit board 22 is placed in the expanded space.
  • the convex portion 41 is provided to accommodate the circuit board 22 inside the housing 40 .
  • the circuit board 22 does not need to be in contact with the inner side (concave portion) of the convex portion 41 .
  • the convex portion 41 is provided to accommodate the circuit board 22 while reducing the overall size of the lighting device 1. Further, the convex portion 41 may be provided to increase the strength of the housing 40.
  • the antenna 31 is placed a predetermined distance away from the convex portion 41.
  • the distance between the antenna 31 and the metal convex portion 41 is at least a certain distance, it is possible to suppress the radio waves radiated from the antenna 31 from being blocked by the housing 40.
  • FIGS. 2 and 3 show an example in which the antenna 31 is placed away from the convex part 41, if the housing 40 has a recess as an example of an uneven part, the antenna 31 is placed away from the recess. Good too. Thereby, it is possible to suppress the radio waves radiated from the antenna 31 from being blocked by the housing 40.
  • the lighting device 1 includes a protective cover 44 that protects the antenna 31.
  • a protective cover 44 that protects the antenna 31.
  • the protective cover 44 allows radio waves radiated from the antenna 31 to pass through.
  • the protective cover 44 can prevent foreign substances such as dust and water from coming into contact with the antenna 31.
  • the protective cover 44 is formed using resin, for example, but is not limited to this.
  • the protective cover 44 may be formed using a material other than metal, such as glass. Note that the protective cover 44 may not be provided.
  • the housing 40 has protrusions 42, 43a, and 43b.
  • the convex parts 42, 43a, and 43b are each an example of an uneven part, and are provided to hold at least a part of the AC/DC converter 20 or the wireless power supply part 30.
  • the convex portion 42 is configured to fit into a portion of the circuit board 22. More specifically, a portion of the circuit board 22 is held between the protrusion 42 and the inner wall surface of the protrusion 41 .
  • the convex portions 43a and 43b are configured to fit into a portion of the control board 32. A portion of the control board 32 is held between the protrusions 43a and 43b.
  • FIG. 4 is a cross-sectional view showing the positional relationship between the antenna 31 and the housing 40A of the lighting device 1A according to the first modification of the present embodiment.
  • the antenna 31 is housed inside the housing 40A.
  • a slit 45 which is an example of an opening for allowing radio waves radiated from the antenna 31 to pass, is formed in the housing 40A.
  • a cover formed using a material that transmits radio waves may be provided so as to cover the slit 45 or to fill the inside of the slit 45 . Thereby, it is possible to suppress foreign matter from entering the inside of the housing 40A through the slit 45.
  • the antenna 31 is arranged so as to close at least a portion of the opening surface of the slit 45 (on the inner space side of the housing 40A).
  • the antenna 31 and the slit 45 may be separated from each other.
  • the antenna 31 may be fixed to a portion (not shown) of the inner surface of the housing 40A that faces the slit 45.
  • the lighting device 1A includes a holding member 46.
  • the holding member 46 is a member that holds the antenna 31. As shown in FIG. 4, a portion of the antenna 31 is fixed to the housing 40A by a holding member 46.
  • the holding member 46 is a screw or a screw, but is not limited thereto.
  • the holding member 46 may be provided to hold the circuit board 22 or the control board 32. Alternatively, the holding member 46 may be provided to hold the lighting section 60.
  • FIG. 5 is a cross-sectional view showing the positional relationship between the AC/DC conversion section 20 and the wireless power supply section 30 of the lighting device 1B according to the second modification of the present embodiment. Specifically, FIG. 5 shows the circuit board 22 of the AC/DC conversion unit 20 and the control board 32 of the wireless power supply unit 30.
  • the circuit board 22 and the control board 32 are arranged on the mounting surface 40b of the housing 40B.
  • the mounting surface 40b is the inner surface of the housing 40B, but is not limited thereto.
  • the mounting surface 40b may be an outer surface.
  • the mounting surface 40b may be a part of a member such as a heat sink or a circuit case disposed inside the housing 40B.
  • the lighting device 1B includes a radio wave blocking member 47 disposed between the AC/DC converter 20 and the wireless power supply unit 30. As shown in FIG. 5, the radio wave blocking member 47 is arranged between the circuit board 22 and the control board 32. Thereby, it is possible to suppress noise from the circuit board 22 from propagating to the control board 32 and affecting the quality of electric waves for power feeding. Furthermore, the radio wave blocking member 47 can also suppress noise from the control board 32 from affecting the circuit board 22 .
  • the radio wave blocking member 47 may be arranged between the antenna 31 and at least one of the circuit board 22 and the control board 32. Thereby, the radio wave blocking member 47 can suppress the radio waves radiated from the antenna 31 from affecting the circuit board 22 or the control board 32.
  • the radio wave blocking member 47 is, for example, a metal member.
  • the radio wave blocking member 47 may be a resin sheet kneaded with metal powder.
  • the radio wave blocking member 47 may be fixed to a constant potential such as ground (0V).
  • the radio wave blocking member 47 may be arranged to cover only the circuit board 22 or only the control board 32.
  • the circuit board 22 and the antenna 31 may be arranged on the same plane.
  • the circuit board 22, the antenna 31, and the control board 32 may be arranged on the same plane.
  • at least a portion of each of at least two selected from the group consisting of the AC/DC conversion section 20, the wireless power supply section 30, the illumination section 60, and the control section 90 may be arranged on the same plane.
  • the AC/DC conversion section 20, the wireless power supply section 30, the illumination section 60, and the control section 90 may all be arranged on the same plane. Thereby, the height of the lighting device 1B can be reduced.
  • FIG. 6 is a diagram showing a schematic configuration of a lighting device 1 according to a third modification of the first embodiment. As shown in FIG. 6, the lighting device 1 according to this modification is connected to a structure 6A and receives AC power from an AC power source 3.
  • the structure 6A has the same structure as the structure 2 of the first embodiment.
  • the structure 6A is a part of the support member 8 connected to the structure 4. AC power is supplied to the structure 6A from the AC power supply 3 via the structure 4.
  • the structure 4 is a structure to which a lighting fixture (not shown) can be attached.
  • the structure 4 is, for example, a socket (receiver) to which a base is connected, a hook ceiling body, a wiring duct, a terminal block, or the like.
  • the support member 8 is a member to which a plurality of lighting fixtures can be attached, and supports the plurality of attached lighting fixtures.
  • the support member 8 includes a power receiving section 5, a plurality of structures 6A, 6B, and 6C, and an arm tree section 7.
  • the support member 8 is connected to the structure 4, receives AC power from the AC power source 3, and supplies the received AC power to each of the plurality of structures 6A, 6B, and 6C.
  • the power receiving unit 5 has the same configuration as the power receiving unit 10 of the lighting device 1.
  • the power receiving unit 5 is connected to the structure 4 and receives AC power via the structure 4 .
  • the power receiving unit 5 is an E-type or G-type cap.
  • the power receiving unit 5 has a structure that can be connected when the structure 4 is a hook ceiling body, a wiring duct, or a terminal block.
  • the power receiving unit 5 is one or more conductive pins, an adapter, or the like.
  • Each of the structures 6A, 6B, and 6C is a structure to which a lighting fixture can be attached.
  • the structures 6A, 6B, and 6C are, for example, a socket (receiver) to which a base is connected, a hook ceiling body, a wiring duct, a terminal block, or the like.
  • the lighting device 1 is connected to the structure 6A.
  • a lighting fixture 102 is connected to each of the structures 6B and 6C.
  • the lighting fixture 102 includes a power receiving section 110.
  • Power receiving unit 110 has the same configuration as power receiving unit 10 of lighting device 1 .
  • the lighting fixture 102 is, for example, a light bulb type lamp having an E-shaped cap as the power receiving unit 110, but is not limited thereto.
  • the structures 6A, 6B, and 6C are of the same type. Therefore, the lighting device 1 can be connected to any of the structures 6A, 6B, and 6C.
  • the lighting device 1 can be connected to an appropriate structure depending on the emission range of electric waves for power feeding or the illumination range by the lighting equipment 102.
  • a plurality of lighting devices 1 may be connected to any one of the plurality of structures 6A, 6B, and 6C.
  • the arm wood portion 7 is a portion that supports each of the plurality of structures 6A, 6B, and 6C.
  • the arm tree section 7 has a tree structure with the power receiving section 5 as the root, but is not limited thereto.
  • the lighting device 1 may receive AC power from the AC power source 3 via the plurality of structures 4 and 6A.
  • the structure 6A to which the lighting device 1 is connected does not need to be fixed to a structure such as a ceiling or a wall.
  • the number of structures 6A, 6B, and 6C included in the support member 8 may be only one, two, or four or more, and is not particularly limited. Further, the plurality of structures 6A, 6B, and 6C may be configured to be connectable with mutually different types of lighting equipment.
  • FIG. 7A and 7B are a perspective view and a cross-sectional view showing the positional relationship between the wireless power supply unit 30 and the housing 40C of the lighting device 1C according to Modification 4 of the present embodiment.
  • FIG. 7B shows a cross section taken along the VIB-VIB line in FIG. 7A. Note that in FIG. 7A, only a part of the housing 40C is illustrated.
  • the housing 40C has a convex portion 48.
  • the control board 32 is placed on the convex portion 48 .
  • the antenna 31, the circuit board 22, or a unit box (wireless module) of the wireless power feeding section 30 may be arranged.
  • a slit 49 is provided in the convex portion 48.
  • the slit 49 passes through a portion of the convex portion 48.
  • the projecting portion 33 of the control board 32 is inserted into the slit 49 .
  • the projecting portion 33 is a tongue-shaped portion provided to project from the main body of the control board 32 .
  • the control board 32 is held by the projecting portion 33 being inserted into the slit 49 and being locked to the back side of the protruding portion 48 .
  • FIG. 7B shows an example in which two sets of slits 49 and projecting portions 33 are provided, the present invention is not limited to this.
  • a concave portion is formed on the back side.
  • This recessed portion can be effectively used as a space for arranging the projecting portion 33. For example, even if another substrate is placed on the back side of the convex portion 48, contact with the protruding portion 33 can be avoided.
  • FIG. 8 is a diagram showing a schematic configuration of a lighting device 1D according to modification 5 of the present embodiment. As shown in FIG. 8, the wireless power feeding unit 30 of the lighting device 1D has a plurality of antennas 31.
  • Each of the plurality of antennas 31 radiates radio waves for power feeding.
  • the plurality of antennas 31 may be directional antennas. By arranging the plurality of antennas 31 so that their respective radiation directions are different from each other, wireless power feeding can be performed over a wide range. Although not shown in FIG. 8, each of the two antennas 31 is connected to the wireless power feeding unit 30 (control board 32).
  • the second embodiment differs from the first embodiment in that the lighting device includes an AC power supply section.
  • the explanation will focus on the differences from Embodiment 1, and the explanation of the common points will be omitted or simplified.
  • FIG. 9 is a diagram showing the configuration of lighting device 101 according to this embodiment. As shown in FIG. 9, lighting device 101 differs from lighting device 1 according to the first embodiment in that it includes a casing 140 instead of casing 40. Furthermore, the lighting device 101 includes AC power supply sections 71 and 72.
  • the housing 140 has arm wood portions 141 and 142.
  • AC power supply sections 71 and 72 are provided at the tips of the arm wood sections 141 and 142, respectively.
  • Wiring (not shown) is provided inside each of the arm wood portions 141 and 142.
  • the wiring electrically connects the power receiving section 10 and each of the AC power feeding sections 71 and 72.
  • the wiring is made up of one or more electrically conductive members, such as connectors, conductive terminals, lead wires, and pattern wiring.
  • the AC power supply units 71 and 72 each supply AC power received by the power receiving unit 10 as AC power. That is, the AC power supply units 71 and 72 each supply AC power received by the power reception unit 10 without converting it into DC power.
  • the AC power supply units 71 and 72 each have a structure to which the power reception unit 10 can be connected. That is, the AC power supply units 71 and 72 each have the same configuration as the structure 2 to which the power reception unit 10 is connected.
  • the AC power supply units 71 and 72 are each a socket (receiver) to which a cap is connected, a hook ceiling body, a wiring duct, a terminal block, or the like.
  • the power receiving section 110 of the lighting fixture 102 can be connected to the AC power supply section 71 or 72.
  • the number of lighting fixtures that can be connected to the lighting device 101 can be increased, and the lighting environment can be improved.
  • the lighting device 1, 1A, 1B, 1C, or 1D can also be connected to one of the AC power supply units 71 and 72.
  • the number of antennas 31 can be increased, so the range of wireless power feeding can be expanded.
  • control unit 90 may control each of the AC power supply units 71 and 72 in addition to the operation of the first embodiment. Specifically, the control unit 90 may control execution (on) and stop (off) of supply of alternating current power by the AC power supply unit 71 or 72.
  • control unit 90 controls turning on and off of each of the AC power supply units 71 and 72 based on instructions from an external source such as a user.
  • control unit 90 may control the control unit 90 based on information obtained by various sensors such as a human sensor, or when a predetermined condition (for example, a predetermined time of day) is satisfied.
  • a predetermined condition for example, a predetermined time of day
  • Each of the AC power supply units 71 and 72 may be turned on and off.
  • a switch may be disposed on the wiring that connects the power receiving unit 10 and the AC power feeding unit 71 or 72 to switch the wiring between conduction (ON) and non-conduction (OFF).
  • the control unit 90 may control the ON and OFF of the AC power supply unit 71 or 72 by controlling the ON and OFF of the switch.
  • the lighting device 101 includes the AC power supply sections 71 and 72.
  • the lighting device 102 can be connected to the lighting device 101 even if the lighting device 101 is connected to the structure 2 that was originally installed with the assumption that the lighting device 102 would be attached. . That is, since the number of lighting devices can be increased, it is possible to improve the design of the lighting, such as changing the atmosphere of the lighting in the space.
  • the lighting device 101 includes the control unit 90, it is possible to control turning on and off of each of the lighting unit 60 and the AC power supply units 71 and 72.
  • the space can be illuminated by the lighting fixture 102 connected to the AC power supply section 71 or 72.
  • the housing 140 does not need to include the arms 141 and 142, and the AC power supply units 71 and 72 may be provided directly on the main body of the housing 140.
  • the AC power supply units 71 and 72 may be provided so as to face in a direction different from the structure 2 (laterally, diagonally, or upwardly).
  • the number of AC power supply units 71 and 72 included in the lighting device 101 is not limited to two, and may be only one, or may include three or more AC power supply units.
  • FIG. 10 is a diagram showing a schematic configuration of a lighting device 101A according to a modification of the present embodiment.
  • a lighting device 101A according to the present modification differs from the lighting device 101 according to Embodiment 2 in that it includes an AC power supply section 73 instead of AC power supply sections 71 and 72. do.
  • the AC power supply section 73 like the AC power supply sections 71 and 72, supplies the AC power received by the power receiving section 10 as AC power. That is, the AC power feeding section 73 feeds the AC power received by the power receiving section 10 without converting it into DC power.
  • the AC power supply unit 73 has a structure that cannot be connected to the power receiving unit 10 of the lighting device 101A. That is, the AC power supply section 73 has a different structure from the structure 2.
  • the structure 2 is a socket to which an E-shaped cap can be connected
  • the AC power supply section 73 has a configuration to which a GX53-shaped cap (a pair of conductive pins) can be connected. Therefore, as shown in FIG. 10, a lighting fixture 103 of a different type from the lighting fixture 102, which is a light bulb type lamp, can be connected to the AC power supply section 73.
  • the lighting fixture 103 has a power receiving section (a pair of conductive pins) 111 and receives alternating current power from the AC power feeding section 73 via the power receiving section 111 .
  • the lighting fixture 103 emits illumination light based on the AC power received by the power receiving unit 111.
  • the lighting device 101A includes the AC power supply section 73 having a structure to which the power reception section 10 cannot be connected. Thereby, a type of lighting fixture 103 that could not originally be attached to the structure 2 can be indirectly attached via the lighting device 101A.
  • the number of AC power supply units included in the lighting device 101A may be only one. Further, the plurality of AC power supply units may include AC power supply units having mutually different structures. Thereby, the types of lighting fixtures that can be attached to the structure 2 can be substantially increased.
  • Embodiment 3 a wireless power feeding system including a lighting device according to Embodiment 1 or 2 or a modification thereof will be described. Below, the explanation will focus on the differences from Embodiment 1 or 2 or their modifications, and the explanation of common points will be omitted or simplified.
  • FIG. 11 is a diagram showing a schematic configuration of a wireless power supply system 100 according to the present embodiment.
  • the wireless power supply system 100 includes a lighting device 1 and an electrical device 200.
  • the lighting device 1 is the same as the lighting device 1 according to the first embodiment.
  • the wireless power supply system 100 may include a plurality of lighting devices 1.
  • the wireless power supply system 100 may include at least one of the lighting devices 1A, 1B, 1C, 1D, 101, and 101A instead of or in addition to the lighting device 1.
  • the electrical device 200 is a device that receives wirelessly supplied power.
  • the electrical device 200 operates using the power received wirelessly.
  • the electrical device 200 is, for example, a smartphone, but is not limited thereto.
  • the electrical device 200 may be a sensor device that detects biological information, environmental information, or device information, an information device such as a wireless earphone or a game controller, a mobile terminal such as a tablet PC, or a home appliance.
  • the electrical device 200 may be, for example, a device external to a PC that receives power supplied wirelessly.
  • the electrical device 200 may be incorporated into a moving object such as a transfer robot, a mobile robot, or a car.
  • the electrical device 200 includes a power receiving antenna 210, a charging circuit 220, and a rechargeable battery 230.
  • the power receiving antenna 210 receives radio waves for wireless power feeding radiated from the antenna 31.
  • the power receiving antenna 210 is, for example, a pattern antenna having wiring provided on a substrate.
  • each of the power receiving antennas 210 may be a rod-shaped antenna.
  • the type of power receiving antenna 210 is not particularly limited as long as it can receive radio waves for wireless power feeding.
  • the charging circuit 220 charges the rechargeable battery 230 using radio waves received by the power receiving antenna 210.
  • charging circuit 220 includes one or more substrates (not shown) and a plurality of circuit elements (not shown) mounted on the substrates.
  • the board is, for example, a printed wiring board, and includes wiring that electrically connects a plurality of circuit elements.
  • the plurality of circuit elements includes at least one of an integrated circuit (IC) element, a resistor, a diode, a transistor, a transformer, an inductor, a capacitor, and the like.
  • Charging circuit 220 is configured by electrically connecting a plurality of circuit elements.
  • the rechargeable battery 230 is a rechargeable and dischargeable secondary battery. Rechargeable battery 230 is charged by charging circuit 220. Note that the rechargeable battery 230 may be detachably attached to the electrical device 200.
  • the electrical device 200 operates using the power charged in the rechargeable battery 230.
  • the electrical device 200 includes components for performing its functions.
  • the electrical device 200 when the electrical device 200 is a smartphone, the electrical device 200 includes a display, a touch sensor, a speaker, a microphone, a camera, a processor, a memory, a communication interface, and the like.
  • Electrical equipment 200 executes predetermined functions by operating these various components using electric power charged in rechargeable battery 230.
  • the lighting device is, for example, the lighting device 1, 1A, 1B, 1C, 1D, 101 or 101A described above, and the structure 2 or 6A to which the lighting device can be attached.
  • the power receiving unit 10 is connected to the structure 2 or 6A to receive AC power
  • an AC/DC conversion unit 20 converts the AC power received by the power receiving unit 10 into DC power
  • an antenna 31 an antenna 31
  • a wireless power supply section 30 that supplies wireless power from an antenna 31 using the DC power converted by the AC/DC conversion section 20, and a lighting section that emits illumination light based on the AC power received by the power reception section 10. 60.
  • the lighting device 1, 1A, 1B, 1C, 1D, 101, or 101A capable of wireless power supply.
  • the lighting device 1, 1A, 1B, 1C, 1D, 101, or 101A can be installed in a place with few radio wave barriers, and it becomes easy to secure a wide power supply range.
  • the lighting device 1, 1A, 1B, 1C, 1D, 101 or 101A can be installed in the same way as general lighting equipment, so even a general user can easily install it without the need for specialized electrical work. It is possible.
  • the lighting device according to the second aspect of the present invention is the lighting device according to the first aspect, in which the power receiving unit 10 is an E-type or GX53-type base or a base having an L-shaped pin, or , has a structure that can be connected when the structure 2 or 6A is a hook ceiling body, a wiring duct, or a terminal block.
  • the power receiving unit 10 is an E-type or GX53-type base or a base having an L-shaped pin, or , has a structure that can be connected when the structure 2 or 6A is a hook ceiling body, a wiring duct, or a terminal block.
  • the range of power feeding by the wireless power feeding unit 30 is, for example, a range of 3 m or less with the antenna 31 as a reference. Since the ceiling height does not exceed 3 m indoors in a typical building, the lighting device 1, 1A, 1B, 1C, 1D, 101 or 101A according to this embodiment is connected to the structure 2 fixed to the ceiling. In this case, the power feeding radio waves can reach not only the area directly under the structure 2 (the lighting device according to this embodiment) but also a certain range.
  • the lighting device according to the third aspect of the present invention is the lighting device according to the first aspect or the second aspect, and the wireless power feeding unit 30 includes a plurality of antennas 31.
  • electric waves for power feeding can be radiated over a wide range (for example, in all directions).
  • a lighting device is a lighting device according to any one of the first to third aspects, in which the AC power received by the power receiving unit 10 is An AC power supply section 71, 72, or 73 that supplies power directly is provided.
  • the lighting device according to the fifth aspect of the present invention is the lighting device according to the fourth aspect, and the AC power feeding section 71 or 72 has a structure to which the power receiving section 10 can be connected.
  • a lighting fixture that can be connected to the structure 2 can be connected to the AC power supply section 71 or 72. That is, a lighting fixture that can originally be directly attached to the structure 2 can be attached to the structure 2 via the lighting device according to this embodiment.
  • the lighting device according to the sixth aspect of the present invention is the lighting device according to the fourth aspect, and the AC power supply section 73 has a structure to which the power receiving section 10 cannot be connected.
  • lighting fixtures that cannot be connected to the structure 2 can be connected to the AC power supply section 73. That is, a lighting fixture that cannot normally be directly attached to the structure 2 can be attached to the structure 2 via the lighting device according to this embodiment.
  • a lighting device is a lighting device according to any one of the first to sixth aspects, and includes a control section 90 that controls the lighting section 60.
  • the lighting device according to the eighth aspect of the present invention is the lighting device according to any one of the first to seventh aspects, and includes a housing 40, 40A that houses the AC/DC converter 20. , 40B, 40C or 140.
  • the AC/DC converter 20 and the like housed inside the housing 40, 40A, 40B, 40C, or 140 can be protected.
  • the lighting device according to the ninth aspect of the present invention is the lighting device according to the eighth aspect, in which the housing 40, 40A, 40B, 40C, or 140 is a metal housing, and the antenna 31 is arranged outside the housing 40, 40A, 40B, 40C, or 140.
  • the metal casing 40, 40A, 40B, 40C, or 140 is made of metal, the protection performance of the members housed inside can be improved.
  • the lighting device according to the tenth aspect of the present invention is the lighting device according to the eighth aspect, in which the housing 40, 40A, 40B, 40C, or 140 is a metal housing, and the antenna 31 is arranged inside the housing 40, 40A, 40B, 40C, or 140, and the housing 40, 40A, 40B, 40C, or 140 has a slit 45, which is an example of an opening.
  • a lighting device is a lighting device according to any one of the eighth to tenth aspects, in which the housing 40, 40A, 40B, 40C, or 140 is made of metal.
  • the housing 40, 40A, 40B, 40C, or 140 has a convex portion 41, which is an example of an uneven portion, and the antenna 31 is disposed at a predetermined distance from the convex portion 41.
  • a lighting device is a lighting device according to any one of the eighth to eleventh aspects, in which the housing 40, 40A, 40B, 40C, or 140 has an uneven surface.
  • the protrusion 42, 43a or 43b is configured to fit into a part of the AC/DC conversion unit 20 or the wireless power supply unit 30.
  • the AC/DC converter 20 or the wireless power supply unit 30 can be fixed and held while suppressing an increase in the number of parts.
  • a lighting device is a lighting device according to any one of the eighth to eleventh aspects, which holds the AC/DC conversion section 20 or the wireless power supply section 30.
  • a holding member 46 is provided.
  • the AC/DC conversion section 20 or the wireless power supply section 30 can be easily fixed and held using the holding member 46 such as a screw or screw.
  • a lighting device is a lighting device according to any one of the first to thirteenth aspects, which includes at least a part of the AC/DC conversion section 20 and a wireless power supply section. 30 are arranged on the same plane.
  • the height of the lighting device according to this aspect can be reduced.
  • a lighting device is a lighting device according to any one of the first to thirteenth aspects, in which the AC/DC conversion section 20 and the wireless power supply section 30 are each , and are arranged such that at least a portion of the main surfaces of the substrates overlap with each other.
  • the width of the lighting device according to this aspect can be reduced.
  • the wireless power supply system according to the seventeenth aspect of the present invention is, for example, the wireless power supply system 100, and includes the lighting device according to any one of the first to sixteenth aspects, and an electrical device 200, Electrical equipment 200 includes a power receiving antenna 210 that receives radio waves for wireless power feeding radiated from antenna 31, and a charging circuit 220 that charges rechargeable battery 230 using the radio waves received by power receiving antenna 210.

Abstract

L'invention concerne un dispositif d'éclairage (1) comprenant : une unité de réception d'énergie (10) qui est connectée à une structure (2) à laquelle un appareil d'éclairage peut être fixé, et qui reçoit de l'énergie CA par l'intermédiaire de la structure (2) ; une unité de conversion CA/CC (20) qui convertit l'énergie CA reçue par l'unité de réception d'énergie (10) en énergie CC ; une unité d'alimentation en énergie sans fil (30) qui comprend une antenne (31) et qui fournit de l'énergie sans fil à partir de l'antenne (31) en utilisant l'énergie CC obtenue par conversion à l'aide de l'unité de conversion CA/CC (20) ; et une unité d'éclairage (60) qui projette une lumière d'éclairage sur la base de l'énergie CA reçue par l'unité de réception d'énergie (10).
PCT/JP2023/024558 2022-07-08 2023-07-03 Dispositif d'éclairage et système d'alimentation en énergie sans fil WO2024009931A1 (fr)

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JP2022-110564 2022-07-08
JP2022110564 2022-07-08

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002110376A (ja) * 2000-10-02 2002-04-12 Matsushita Electric Works Ltd 照明器具
JP2016054122A (ja) * 2014-09-04 2016-04-14 パナソニックＩｐマネジメント株式会社 照明装置
JP2018185934A (ja) * 2017-04-25 2018-11-22 パナソニックＩｐマネジメント株式会社 照明器具
JP2019153451A (ja) * 2018-03-02 2019-09-12 三菱電機株式会社 照明器具
JP2021136097A (ja) * 2020-02-25 2021-09-13 三菱電機株式会社 照明器具

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002110376A (ja) * 2000-10-02 2002-04-12 Matsushita Electric Works Ltd 照明器具
JP2016054122A (ja) * 2014-09-04 2016-04-14 パナソニックＩｐマネジメント株式会社 照明装置
JP2018185934A (ja) * 2017-04-25 2018-11-22 パナソニックＩｐマネジメント株式会社 照明器具
JP2019153451A (ja) * 2018-03-02 2019-09-12 三菱電機株式会社 照明器具
JP2021136097A (ja) * 2020-02-25 2021-09-13 三菱電機株式会社 照明器具

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