WO2014030271A1 - 電球形ランプ及び照明装置 - Google Patents
電球形ランプ及び照明装置 Download PDFInfo
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- WO2014030271A1 WO2014030271A1 PCT/JP2013/001559 JP2013001559W WO2014030271A1 WO 2014030271 A1 WO2014030271 A1 WO 2014030271A1 JP 2013001559 W JP2013001559 W JP 2013001559W WO 2014030271 A1 WO2014030271 A1 WO 2014030271A1
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- base
- shaped lamp
- light bulb
- bulb shaped
- led
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
- H05K1/0207—Cooling of mounted components using internal conductor planes parallel to the surface for thermal conduction, e.g. power planes
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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
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- 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]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/45144—Gold (Au) as principal constituent
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/484—Connecting portions
- H01L2224/48463—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/484—Connecting portions
- H01L2224/4847—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a wedge bond
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/491—Disposition
- H01L2224/49105—Connecting at different heights
- H01L2224/49107—Connecting at different heights on the semiconductor or solid-state body
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/494—Connecting portions
- H01L2224/4945—Wire connectors having connecting portions of different types on the semiconductor or solid-state body, e.g. regular and reverse stitches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/00011—Not relevant to the scope of the group, the symbol of which is combined with the symbol of this group
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
- H05K1/0209—External configuration of printed circuit board adapted for heat dissipation, e.g. lay-out of conductors, coatings
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/06—Thermal details
- H05K2201/066—Heatsink mounted on the surface of the PCB
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10106—Light emitting diode [LED]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10227—Other objects, e.g. metallic pieces
- H05K2201/10416—Metallic blocks or heatsinks completely inserted in a PCB
Definitions
- the present invention relates to a light bulb shaped lamp and a lighting device, and more particularly to a light bulb shaped lamp using a semiconductor light emitting element and a lighting device using the same.
- LEDs Light Emitting Diodes
- Patent Document 1 discloses a conventional bulb-type LED lamp.
- the conventional light bulb shaped LED lamp disclosed in Patent Document 1 includes a globe, a substrate disposed in the globe, and an LED mounted on the substrate.
- the conventional bulb-type LED lamp has a problem that heat is generated from the LED mounted on the substrate, and the light emission efficiency of the LED is reduced by this heat. For this reason, it is desired to improve heat dissipation.
- a heat dissipation measure is extremely important.
- the present invention has been made to solve such a problem, and an object of the present invention is to provide a light bulb shaped lamp and a lighting device that can improve heat dissipation.
- one aspect of a light bulb shaped lamp according to the present invention includes a globe, a substrate disposed inside the globe, a support column supporting the substrate, and one surface of the substrate.
- the plurality of semiconductor light emitting elements provided and selectively provided at positions facing each of the plurality of semiconductor light emitting elements on the other surface of the substrate and thermally connected to the support pillars.
- a heat transfer section that transfers heat generated by the light emitting element to the support column.
- a recess is formed on the other surface of the substrate at a position facing each of the plurality of semiconductor light emitting elements, and the heat transfer portion is in the recess. It may be arranged in the direction.
- the plurality of semiconductor light emitting elements are arranged in a line on one surface of the substrate, and the heat transfer section is arranged in a line.
- the plurality of semiconductor light emitting elements may be provided in a line shape on the other surface of the substrate.
- a plurality of the heat transfer parts are provided at positions facing each of the plurality of semiconductor light emitting elements, and the light bulb shaped lamp further includes the plurality of heat transfer parts. You may decide to provide the connection part which connects each of a thermal part with the said support
- the heat transfer section is formed such that a cross-sectional area in a plane parallel to one surface of the substrate becomes smaller as the distance from the semiconductor light emitting element is increased. You may decide.
- the heat transfer section and the support column may be integrally formed.
- the substrate has translucency
- the light bulb shaped lamp is further disposed so as to cover the semiconductor light emitting element, and the semiconductor light emitting element emits light.
- an aspect of the lighting device according to the present invention is a lighting device including any one of the above-described light bulb shaped lamps.
- FIG. 1 is an external perspective view of a light bulb shaped lamp according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view of the light bulb shaped lamp according to the embodiment of the present invention.
- FIG. 3 is a diagram showing one cross section of the configuration of the light bulb shaped lamp according to the embodiment of the present invention.
- FIG. 4 is a diagram showing another cross section of the configuration of the light bulb shaped lamp according to the embodiment of the present invention.
- FIG. 5 is an external perspective view of a support member in the light bulb shaped lamp according to the embodiment of the present invention.
- FIG. 6 is a diagram showing a configuration of the LED module in the light bulb shaped lamp according to the embodiment of the present invention.
- FIG. 1 is an external perspective view of a light bulb shaped lamp according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view of the light bulb shaped lamp according to the embodiment of the present invention.
- FIG. 3 is a diagram showing one cross section of the configuration of the light bulb
- FIG. 7 is an enlarged cross-sectional view around the LED in the LED module of the light bulb shaped lamp according to the embodiment of the present invention.
- FIG. 8 is a diagram showing the configuration of the heat conducting member of the light bulb shaped lamp according to the embodiment of the present invention.
- FIG. 9 is a diagram showing the configuration of the heat conducting member of the light bulb shaped lamp according to the embodiment of the present invention.
- FIG. 10 is a schematic cross-sectional view of the illumination device according to the embodiment of the present invention.
- FIG. 11A is a diagram showing a configuration of a heat conducting member according to Modification 1 of the embodiment of the present invention.
- FIG. 11B is a diagram showing a configuration of a heat conducting member according to Modification 1 of the embodiment of the present invention.
- FIG. 11A is a diagram showing a configuration of a heat conducting member according to Modification 1 of the embodiment of the present invention.
- FIG. 11B is a diagram showing a configuration of a heat conducting member according to Modification 1 of the
- FIG. 11C is a diagram showing a configuration of a heat conducting member according to Modification 1 of the embodiment of the present invention.
- FIG. 12A is a diagram showing a configuration of a heat conducting member according to Modification 2 of the embodiment of the present invention.
- FIG. 12B is a diagram showing a configuration of a heat conducting member according to Modification 2 of the embodiment of the present invention.
- FIG. 13 is a diagram showing a configuration of a heat conducting member according to Modification 3 of the embodiment of the present invention.
- FIG. 14 is a diagram showing a configuration of a heat conducting member according to Modification 3 of the embodiment of the present invention.
- FIG. 15A is a diagram showing a configuration of a heat conducting member according to Modification 4 of the embodiment of the present invention.
- FIG. 15B is a diagram showing a configuration of a heat conducting member according to Modification 4 of the embodiment of the present invention.
- FIG. 16A is a diagram showing a configuration of a heat conducting member according to Modification 4 of the embodiment of the present invention.
- FIG. 16B is a diagram showing a configuration of a heat conducting member according to Modification 4 of the embodiment of the present invention.
- FIG. 1 is an external perspective view of a light bulb shaped lamp 1 according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view of the light bulb shaped lamp 1 according to the embodiment of the present invention.
- a light bulb shaped lamp 1 is a light bulb shaped LED lamp that is a substitute for a light bulb shaped fluorescent light or an incandescent light bulb, and includes a globe 10 and an LED that is a light source. Power is supplied to the module 20, the support member 40 that supports the LED module 20, the housing 50 in which the drive circuit 70 is disposed inside, the metal member 60 disposed in the housing 50, and the LED module 20. A driving circuit 70 for receiving power and a base 80 for receiving power from the outside.
- the bulb-type lamp 1 further includes lead wires 70a to 70d, a ring-shaped coupling member 30, and a screw 90.
- an envelope is constituted by the globe 10, the housing 50 (outer housing portion 52), and the base 80. That is, the globe 10, the housing 50 (outer housing portion 52), and the base 80 are exposed to the outside, and each outer surface is exposed to the outside air. Further, the light bulb shaped lamp 1 in the present embodiment is configured to have a brightness equivalent to, for example, a 40 W type.
- the upper direction shown in these drawings is the upper direction, and the lower direction is the lower direction. That is, the globe 10 is disposed above the base 80.
- the definition of the above direction is independent of the direction when the light bulb shaped lamp 1 is attached to the lighting fixture, and when the light bulb shaped lamp 1 is attached to the lighting fixture, any direction is upward or downward. It doesn't matter.
- FIG. 3 is a view showing one section of the light bulb shaped lamp 1 according to the embodiment of the present invention.
- FIG. 4 is a diagram showing another cross section of the configuration of the light bulb shaped lamp 1 according to the embodiment of the present invention, and shows a cross sectional view when rotated about 90 ° from the state of FIG. 3 around the lamp axis. ing.
- the lamp axis is an axis that becomes a rotation center when the bulb lamp 1 is attached to the socket of the lighting device, and coincides with the rotation axis of the base 80.
- 3 and 4 only the cross-sectional portions of the respective constituent members are illustrated except for the circuit elements. In FIG. 4, the circuit elements are omitted.
- the globe 10 is a translucent cover that houses the LED module 20 and transmits light from the LED module 20 to the outside of the lamp.
- the light of the LED module 20 that has entered the inner surface of the globe 10 passes through the globe 10 and is extracted to the outside of the globe 10.
- the globe 10 in the present embodiment is a glass bulb (clear bulb) made of silica glass that is transparent to visible light. Therefore, the LED module 20 housed in the globe 10 can be viewed from the outside of the globe 10.
- the shape of the globe 10 is a shape in which one end is closed in a spherical shape and an opening 11 is provided at the other end.
- the shape of the globe 10 is such that a part of a hollow sphere narrows while extending away from the center of the sphere, and the opening 11 is located away from the center of the sphere. Is formed.
- a glass bulb having the same shape as a general incandescent bulb can be used.
- a glass bulb such as an A shape, a G shape, or an E shape can be used as the globe 10.
- the opening 11 of the globe 10 is located between the support member 40 and the housing 50. More specifically, the opening 11 of the globe 10 is press-fitted into the groove of the coupling member 30 disposed between the support member 40 and the housing 50. Thereby, the globe 10 is fixed. Further, a silicone resin is applied between the opening 11 of the globe 10 and the end of the housing 50 on the globe side, but this silicone resin is not always necessary.
- the globe 10 is not necessarily transparent to visible light, and the globe 10 may have a light diffusion function.
- a milky white light diffusing film may be formed by applying a resin containing a light diffusing material such as silica or calcium carbonate, a white pigment, or the like to the entire inner surface or outer surface of the globe 10.
- the shape of the globe 10 is not limited to the A shape, and may be a spheroid or an oblate sphere.
- the material of the globe 10 is not limited to a glass material, and a resin material such as a synthetic resin such as acrylic (PMMA) or polycarbonate (PC) may be used.
- the LED module 20 is a light emitting module having a semiconductor light emitting element, and emits predetermined light. As shown in FIGS. 3 and 4, the LED module 20 is disposed inward of the globe 10, and has a spherical central position formed by the globe 10 (for example, a large diameter portion where the inner diameter of the globe 10 is large). (Inside) is preferably arranged. Thus, by arranging the LED module 20 at the center position of the globe 10, the light distribution characteristic of the light bulb shaped lamp 1 becomes a light distribution characteristic similar to an incandescent light bulb using a conventional filament coil.
- the LED module 20 is held in a hollow state in the globe 10 by the support member 40, and emits light by electric power supplied via the lead wires 70a and 70b.
- the detailed configuration of the LED module 20 will be described later.
- the coupling member 30 is a member that couples the globe 10, the support member 40, and the metal member 60. As shown in FIG. 2, the coupling member 30 is configured in a ring shape so as to surround the base 42 (small diameter portion 42 a) of the support member 40.
- the coupling member 30 can be molded by curing a fluid insulating resin (for example, silicon) poured into the gap between the outer peripheral surface of the base 42 of the support member 40 and the outer portion 52a of the outer casing 52.
- the coupling member 30 includes a longitudinal groove portion 30 a formed in an annular shape so that the opening portion 11 of the globe 10 is inserted, and a lateral groove portion provided on the base 42 of the support member 40.
- the outer surface of the coupling member 30 is in contact with the inner surface of the outer housing portion 52 of the housing 50.
- the support member 40 is a member that supports the LED module 20 and is made of metal.
- the configuration of the support member 40 will be described in detail with reference to FIGS. 3 and 4 and FIG.
- FIG. 5 is an external perspective view of the support member 40 in the light bulb shaped lamp 1 according to the embodiment of the present invention.
- the support member 40 (metal strut) is mainly composed of a strut 41 located inside the globe 10 and a pedestal 42 surrounded mainly by the casing 50 (outer casing section 52).
- the support column 41 and the pedestal 42 are integrally formed of the same material.
- the support column 41 is a metal stem provided so as to extend from the vicinity of the opening 11 of the globe 10 toward the inside of the globe 10.
- the support column 41 functions as a holding member that holds the LED module 20.
- One end of the support column 41 is connected to the LED module 20, and the other end of the support column 41 is connected to the pedestal 42.
- pillar 41 since the support
- pillar 41 in this Embodiment is comprised by the aluminum alloy.
- produces in the LED module 20 can be efficiently conducted to the support
- FIG. Thereby, the fall of the luminous efficiency of LED22 by the temperature rise and the fall of a lifetime can be suppressed.
- the support column 41 includes a main shaft portion 41a and a fixed portion 41b.
- the main shaft portion 41a is formed of a cylindrical body having a constant cross-sectional area, one end portion of the main shaft portion 41a is connected to the fixed portion 41b, and the other end portion of the main shaft portion 41a is connected to the pedestal 42.
- fixed part 41b has a fixing surface (upper surface) fixed with the base 21 of the LED module 20.
- FIG. The said fixed surface turns into a contact surface of the fixing
- the LED module 20 is mounted on the fixed surface of the fixing portion 41b and is adhered to the fixed surface with an adhesive or the like.
- the fixing portion 41b is provided with a protruding portion 41b1 protruding from the fixing surface.
- the protrusion 41b1 is configured to be fitted into a through hole 21a provided in the base 21 of the LED module 20.
- the protrusion 41b1 functions as a position restricting portion that restricts the position of the LED module 20, and is configured such that the planar view shape is long.
- the pedestal 42 is a member that supports the support column 41 and is configured to block the opening 11 of the globe 10 as shown in FIGS. 3 and 4.
- the pedestal 42 is made of a metal material.
- the pedestal 42 is made of an aluminum alloy. Thereby, the heat
- FIG. As shown in FIG. 5, the pedestal 42 is a cap-like member having a stepped portion, and includes a small diameter portion 42 a having a small diameter and a large diameter portion 42 b having a large diameter.
- a lateral groove portion is formed along the circumferential direction of the small diameter portion 42a.
- the coupling member 30 is disposed on the step portion of the pedestal 42 (above the large diameter portion 42b), and the flange 30b of the coupling member 30 and the lateral groove portion of the pedestal 42 are fitted, whereby the coupling member 30 is pedestal. 42 is fixed.
- the small diameter portion 42 a is a disk-shaped member configured to support the support column 41 and close the opening 11 of the globe 10.
- the support column 41 is formed at the center of the small diameter portion 42a.
- the outer peripheral surface of the small diameter portion 42a and the inner peripheral surface of the coupling member 30 are in surface contact.
- the small diameter portion 42a is provided with two through holes 42a1 through which the lead wires 70a and 70b are inserted.
- the large diameter portion 42 b is configured in a substantially cylindrical shape, and the outer peripheral surface is in surface contact with the inner peripheral surface of the metal member 60. Thereby, the heat of the support member 40 (base 42) can be efficiently conducted to the metal member 60.
- four concave portions 42b1 are formed as guide holes when caulking with the metal member 60.
- the housing 50 is an insulating case having an insulating property in which the drive circuit 70 is disposed on the inner side, and includes an inner housing portion (first housing portion) 51 and an outer housing portion (second housing portion) 52. It is constituted by.
- the housing 50 can be made of an insulating resin material, and can be resin-molded with, for example, polybutylene terephthalate (PBT).
- the inner casing 51 is an internal member (circuit case) that is disposed so as to surround the drive circuit 70 and is not visible from the outside of the lamp.
- the inner housing part 51 includes a circuit cap part 51 a disposed so as to cover the drive circuit 70 and a circuit holder part 51 b disposed so as to cover the periphery of the drive circuit 70.
- the circuit cap part 51a and the circuit holder part 51b are separated, and the circuit cap part 51a and the circuit holder part 51b are arranged in a non-contact state.
- the upper surface shape of the circuit cap part 51 a is configured to be along the inner surface shape of the base 42 of the support member 40. As a result, the circuit cap portion 51 a is fitted into the base 42 of the support member 40 and is fastened and fixed to the support member 40 by the screw 90.
- the circuit holder 51b is configured in a cylindrical shape.
- the base-side end of the circuit holder 51b is connected to the outer casing 52, and in this embodiment, the circuit holder 51b and the outer casing 52 are integrally molded.
- a stepped portion on which the circuit board 71 of the drive circuit 70 is placed is formed at the globe side end of the circuit holder portion 51b.
- the outer casing 52 is at least a part of the lamp envelope, and is an external member arranged so as to be visible from the outside of the lamp. A region other than the portion covered with the base 80 on the outer peripheral surface of the outer casing 52 is exposed to the outside of the lamp.
- the outer housing part 52 has an outer part 52a exposed to the outside of the lamp and a screwing part 52b screwed into the base 80.
- the outer portion 52a is configured by a substantially cylindrical member having a diameter larger than that of the screwing portion 52b.
- the outer portion 52a is configured such that the diameter gradually decreases toward the base 80 side. That is, the inner peripheral surface and the outer peripheral surface of the outer portion 52a are inclined with respect to the lamp axis. Since the outer surface of the outer portion 52a is exposed to the atmosphere, the heat conducted to the housing 50 is radiated mainly from the outer surface of the outer portion 52a.
- the screwing portion 52b is configured by a substantially cylindrical member having a diameter smaller than that of the outer portion 52a.
- a base 80 is screwed into the screwing portion 52b. That is, the outer peripheral surface of the screwing portion 52 b is configured to contact the inner peripheral surface of the base 80.
- the outer casing 52 (outer section 52a) configured in this way is configured to surround the inner casing 51, the metal member 60, the base 42 of the support member 40, and the coupling member 30.
- a predetermined gap is provided between the inner surface of the outer casing 52 (outer part 52a) and the outer surface of the inner casing 51 (circuit cap part 51a and circuit holder part 51b).
- the outer casing 52 (outer section 52a) and the metal member 60 are not in contact with each other, and as shown in FIG. 4, the inner surface of the outer casing 52 (outer section 52a) A certain gap exists between the outer surface of the metal member 60.
- the metal member 60 is configured in a skirt shape so as to surround the inner casing 51 in the casing 50, and is disposed between the inner casing 51 and the outer casing 52. Thereby, the metal member 60 can be in a non-contact state with the drive circuit 70, and the insulation of the drive circuit 70 can be ensured.
- the metal member 60 is made of a metal material and functions as a heat sink. Thereby, the heat generated from the LED module 20 and the drive circuit 70 can be efficiently radiated using the metal member 60. Specifically, the heat of the LED module 20 and the drive circuit 70 is propagated to the outer casing 52 through the inner casing 51 and the metal member 60, and is radiated from the outer casing 52 to the outside of the lamp. Can do.
- the metal material of the metal member 60 for example, Al, Ag, Au, Ni, Rh, Pd, an alloy composed of two or more of these, or an alloy of Cu and Ag can be considered. Since such a metal material has good thermal conductivity, the heat propagated to the metal member 60 can be efficiently propagated.
- the metal member 60 is in contact with the support member 40.
- the inner peripheral surface of the metal member 60 and the outer peripheral surface of the base 42 (large diameter portion 42b) of the support member 40 are in surface contact. Since both the metal member 60 and the support member 40 are made of metal, the heat of the LED module 20 that has been conducted to the support member 40 is efficiently conducted to the metal member 60.
- the metal member 60 in the present embodiment is not in contact with the outer casing portion 52 (outer portion 52a, screwing portion 52b) in the casing 50, and the inner casing portion 51 (circuit cap portion 51a, circuit). It is not in contact with the holder part 51b). That is, the metal member 60 is disposed in a non-contact state in both the inner housing part 51 and the outer housing part 52. Thereby, the insulation as the whole housing
- the drive circuit (circuit unit) 70 is a lighting circuit (power supply circuit) for lighting (emitting) the LEDs 22 of the LED module 20, and supplies predetermined power to the LED module 20.
- the drive circuit 70 converts AC power supplied from the base 80 via the pair of lead wires 70c and 70d into DC power, and the DC power is supplied to the LED module 20 via the pair of lead wires 70a and 70b. Supply.
- the drive circuit 70 includes a circuit board 71 and a plurality of circuit elements (electronic components) 72 mounted on the circuit board 71.
- the circuit board 71 is a printed board on which metal wiring is patterned, and electrically connects a plurality of circuit elements 72 mounted on the circuit board 71.
- the circuit board 71 is arranged in a posture in which the main surface is orthogonal to the lamp axis. As shown in FIG. 4, the circuit board 71 is placed and clamped on the circuit holder part 51 b of the inner housing part 51.
- the circuit element 72 is, for example, various capacitors, resistor elements, rectifier circuit elements, coil elements, choke coils (choke transformers), noise filters, diodes, or integrated circuit elements.
- the drive circuit 70 configured as described above is covered with the inner casing portion 51 of the casing 50, and thus is in a non-contact state with the metal member 60. Thereby, the insulation of the drive circuit 70 is ensured.
- the drive circuit 70 is not limited to a smoothing circuit, and a dimmer circuit, a booster circuit, and the like can be appropriately selected and combined.
- Each of the lead wires 70a to 70d is an alloy copper lead wire, and is composed of a core wire made of alloy copper and an insulating resin film covering the core wire.
- the pair of lead wires 70 a and 70 b are electric wires for supplying DC power for lighting the LED module 20 from the drive circuit 70 to the LED module 20.
- the drive circuit 70 and the LED module 20 are electrically connected by a pair of lead wires 70a and 70b.
- one end portion (core wire) of each of the lead wires 70a and 70b is electrically connected to the power output portion (metal wiring) of the circuit board 71 by solder or the like, and the other end of each other.
- the end portion (core wire) is electrically connected to the power input portion (electrode terminal) of the LED module 20 by solder or the like.
- the pair of lead wires 70 c and 70 d are electric wires for supplying AC power from the base 80 to the drive circuit 70.
- the drive circuit 70 and the base 80 are electrically connected by a pair of lead wires 70c and 70d.
- one end portion (core wire) of each of the lead wires 70c and 70d is electrically connected to the base 80 (shell portion or eyelet portion), and each other end portion (core wire) is
- the power input part (metal wiring) of the circuit board 71 is electrically connected by solder or the like.
- the base 80 is a power receiving unit that receives power for causing the LEDs 22 of the LED module 20 to emit light from outside the lamp.
- the base 80 is attached to a socket of a lighting fixture, for example, and when the light bulb shaped lamp 1 is turned on, the base 80 receives electric power from the socket of the lighting fixture.
- the base 80 is supplied with AC power from a commercial power supply (AC 100 V).
- the base 80 in the present embodiment receives AC power through two contact points, and the power received by the base 80 is input to the power input unit of the drive circuit 70 via a pair of lead wires 70c and 70b.
- the base 80 has a metal bottomed cylindrical shape, and includes a shell portion whose outer peripheral surface is a male screw and an eyelet portion attached to the shell portion via an insulating portion. Further, a screwing portion for screwing into the socket of the lighting device is formed on the outer peripheral surface of the base 80, and a screwing portion 52 b of the outer housing portion 52 is screwed on the inner peripheral surface of the base 80. A threaded portion for mating is formed.
- the type of the base 80 is not particularly limited, but in this embodiment, a screw-type Edison type (E type) base is used.
- E type screw-type Edison type
- the base 80 an E26 type, an E17 type, an E16 type, or the like can be given.
- FIG. 6 is a diagram showing a configuration of the LED module 20 in the light bulb shaped lamp 1 according to the embodiment of the present invention.
- 6A is a plan view of the LED module 20
- FIG. 6B is a cross-sectional view of the LED module 20 and the fixing portion 41b cut along the line AA ′ in FIG. FIG.
- the LED module 20 includes a base 21, an LED 22, a sealing member 23, a metal wiring 24, and a phosphor layer 27. Further, a heat conducting member 28 is disposed between the base 21 and the fixing portion 41 b of the support column 41.
- the LED module 20 in the present embodiment has a COB (Chip On Board) structure in which a bare chip is directly mounted on the base 21.
- COB Chip On Board
- the base 21 is an LED mounting board for mounting the LEDs 22.
- the base 21 in the present embodiment is composed of a member that has a property of transmitting visible light.
- the base 21 having translucency the light of the LED 22 is transmitted through the inside of the base 21 and is emitted from the surface (back surface) on which the LED 22 is not mounted. Therefore, even when the LED 22 is mounted only on one surface (front surface) of the base 21, light is emitted from the other surface (back surface), and light distribution characteristics similar to an incandescent bulb can be obtained. It becomes possible.
- the base 21 is preferably made of a member having a high total transmittance.
- a ceramic substrate made of sintered alumina (Al 2 O 3 ) having a total transmittance of 90% or more for visible light is used as the base 21.
- a ceramic substrate made of AlN or MgO can be used as the base 21 .
- a metal substrate such as aluminum or copper, a resin substrate, or a metal base substrate having a laminated structure of metal and resin may be used.
- the shape of the base 21 in the present embodiment a rectangular substrate having a long shape in plan view (when viewed from the top of the globe 10) is used. Thereby, the shape of the planar view of the LED module 20 is also long.
- the base 21 is provided with through holes 21a and 21b.
- the through hole 21 a is provided to fit the base 21 and the fixing portion 41 b of the support column 41 of the support member 40.
- the through-hole 21 a is formed in a rectangular shape in plan view at a position shifted in the longitudinal direction from the center of the base 21.
- two through holes 21b are provided for electrical connection with the two lead wires 70a and 70b.
- the through holes 21b are provided at both ends in the longitudinal direction of the base 21. Yes.
- the LED 22 is an example of a semiconductor light emitting device, and is a bare chip that emits monochromatic visible light. In this embodiment, a blue light emitting LED chip that emits blue light when energized is used. Further, the LEDs 22 are mounted only on one surface (front surface) of the base 21, and four element rows each having a plurality of (for example, twelve) LEDs 22 as one row are arranged in a straight line. The LED 22 is mounted on the base 21 via the phosphor layer 27. That is, the LED 22 is mounted on the phosphor layer 27.
- a plurality of LEDs 22 are mounted.
- the number of LEDs 22 may be appropriately changed according to the use of the light bulb shaped lamp.
- the number of LEDs 22 may be one.
- the number of LEDs 22 in one row may be 12 or more.
- the plurality of LEDs 22 are mounted in four rows on the base 21, but may be one row or may be a plurality of rows other than the four rows.
- the light bulb shaped lamp 1 according to the present embodiment can achieve high heat dissipation, it is suitable for a high output type LED lamp having a large number of LEDs 22.
- FIG. 7 is an enlarged cross-sectional view around the LED (LED chip) 22 in the LED module 20 of the light bulb shaped lamp 1 according to the embodiment of the present invention.
- the LED 22 includes a sapphire substrate 22a and a plurality of nitride semiconductor layers 22b having different compositions stacked on the sapphire substrate 22a.
- a cathode electrode 22c and an anode electrode 22d are provided at the end of the upper surface of the nitride semiconductor layer 22b. Further, wire bond portions 22e and 22f are provided on the cathode electrode 22c and the anode electrode 22d, respectively.
- the cathode electrode 22c of one LED 22 and the anode electrode 22d of the other LED 22 are electrically connected in series by a gold wire 25 through wire bond portions 22e and 22f.
- Each LED 22 is mounted on the base 21 with a translucent chip bonding material 26 so that the surface on the sapphire substrate 22 a side faces the mounting surface of the base 21.
- a silicone resin containing a filler made of metal oxide can be used for the chip bonding material 26.
- the sealing member 23 is formed in a linear shape so as to cover (collectively seal) one row of the plurality of LEDs 22.
- the sealing member 23 includes a phosphor that is a first wavelength conversion material, and also functions as a first wavelength conversion unit that is a wavelength conversion layer that converts the wavelength of light from the LED 22.
- a phosphor-containing resin in which predetermined phosphor particles (not shown) and a light diffusing material (not shown) are dispersed in a silicone resin can be used.
- the LED 22 when the LED 22 is a blue light emitting LED that emits blue light, for example, YAG yellow phosphor particles can be used to obtain white light. Thereby, a part of the blue light emitted from the LED 22 is converted into yellow light by the yellow phosphor particles contained in the sealing member 23. Then, the blue light that has not been absorbed by the yellow phosphor particles and the yellow light that has been wavelength-converted by the yellow phosphor particles are diffused and mixed in the sealing member 23, so that white light is emitted from the sealing member 23. And emitted.
- particles such as silica are used as the light diffusing material.
- the sealing member 23 configured in this way can be formed, for example, by applying and curing an uncured paste-like sealing member 23 containing a wavelength conversion material with a dispenser.
- the sealing member 23 is not necessarily formed of a silicone resin, and may be formed of an inorganic material such as a low-melting glass or a sol-gel glass in addition to an organic material such as a fluorine-based resin.
- the metal wiring 24 is a wiring made of a metal such as Ag patterned on the LED mounting surface (front surface), and supplies power supplied to the LED module 20 from the lead wires 70 a and 70 b to each LED 22.
- Each LED 22 is electrically connected to the metal wiring 24 via a gold wire 25.
- the metal wiring 24 formed around the through hole 21b serves as a power feeding portion.
- the leading ends of the two lead wires 70a and 70b are inserted into the through hole 21b as shown in FIG. 3, and are electrically and physically connected to the metal wiring 24 by solder.
- the phosphor layer 27 is a second wavelength conversion unit including a second wavelength conversion material that is formed between the base 21 and each of the plurality of LEDs 22 and converts the wavelength of light emitted from the LEDs 22.
- a second wavelength conversion material similarly to the sealing member 23
- phosphor particles that are excited by light emitted from the LED 22 and emit light of a desired color (wavelength) can be used.
- the phosphor layer 27 in the present embodiment is a sintered body film formed by phosphor particles that are the second wavelength conversion material and a binder for sintering.
- the LED 22 is a blue LED that emits blue light
- YAG-based yellow phosphor particles are used as the phosphor particles (second wavelength conversion material) in order to emit white light from the phosphor layer 27. it can.
- an inorganic material such as a glass frit made of a material mainly composed of silicon oxide (SiO 2 ) can be used.
- the glass frit is a binding material (binding material) for binding the phosphor particles to the base 21 and is made of a material having a high transmittance for visible light.
- Glass frit can be formed by heating and melting glass powder.
- As glass powder of the glass frit SiO 2 —B 2 O 3 —R 2 O, B 2 O 3 —R 2 O, or P 2 O 5 —R 2 O (wherein R 2 O is any , Li 2 O, Na 2 O, or K 2 O).
- SnO 2 —B 2 O 3 made of a low-melting crystal can be used as the material for the binder for sintering.
- the phosphor layer 27 is formed by being fixed to the base 21 between the base 21 and the LED 22. That is, the phosphor layer 27 is fixed to the base 21 with the binder that the phosphor layer 27 itself has.
- the phosphor layer 27 in the present embodiment is formed in an island shape on the base 21 immediately below each LED 22. That is, a plurality of phosphor layers 27 are formed corresponding to each of the plurality of LEDs 22.
- the phosphor layer 27 is formed so as not to come into contact with the metal wiring 24 formed between the adjacent LEDs 22.
- FIG. 8 is a cross-sectional view of the LED module 20 and the fixing portion 41b cut along the line B-B ′ in FIG.
- FIG. 9 is a perspective view of the LED module 20 and the fixing portion 41b as viewed from the back side (Z-axis minus side) of the base 21.
- the heat conducting member 28 is provided on the back surface (the surface on the Z axis minus side) of the base 21. Specifically, the heat conducting member 28 is selectively provided at a position facing each of the plurality of LEDs 22 arranged on the surface of the base 21 (the surface on the Z-axis plus side). That is, as shown in FIG. 8, the heat conducting member 28 is provided so as to be positioned immediately below the LED 22 (Z-axis minus direction), so that the heat conducting member 28 and the LED 22 face each other with the base 21 interposed therebetween. Has been placed. Thus, the heat conducting member 28 and the LED 22 are arranged so that the distance is minimized.
- a recess 21c is formed on the back surface of the base 21 at a position facing each of the plurality of LEDs 22.
- the heat conducting member 28 is disposed inside the recess 21 c formed in the base 21.
- the heat conducting member 28 is disposed so that the distance from the LED 22 is further shortened.
- the heat conducting member 28 is thermally connected to the support column 41 and functions as a heat transfer section that transfers heat generated by the plurality of LEDs 22 to the support column 41.
- the heat conductive member 28 can be formed by applying a metal paste-like material (metal paste) to the recess 21 c of the base 21 and baking it. That is, as the heat conducting member 28, metal pastes made of various materials can be used.
- the heat conductive member 28 is not limited to a metal paste, and may be a metal rod-like member, and the material is not limited to a metal. A resin or the like may be used as long as the material has high heat conductivity. It doesn't matter.
- a plurality of LEDs 22 are arranged in a line shape on the surface of the base 21, and the heat conducting member 28 corresponds to the plurality of LEDs 22 arranged in a line shape. It is provided in a line shape on the back surface.
- the heat conducting member 28 has one heat transfer portion 28a extending linearly in the X-axis direction corresponding to the two element rows, inside the one concave portion 21c.
- the heat conducting member 28 has one heat transfer portion 28b linearly extending in the X-axis direction corresponding to the two element rows inside the one recess 21c.
- the concave portion 21c has a rectangular cross-sectional shape (YZ plane) perpendicular to the arrangement direction (X-axis direction) of the LEDs 22, and the heat transfer portions 28a and 28b correspond to the shape of the concave portion 21c.
- the cross-sectional shape in a plane (YZ plane) perpendicular to the longitudinal direction (X-axis direction) is a rectangular portion.
- the depth of the recess 21c (the height in the Z-axis direction), that is, the height in the Z-axis direction of the heat transfer portions 28a and 28b can maintain the insulation of the base 21, and the strength required for the base 21 Is within a range that can be maintained, the larger the better.
- the two heat transfer portions 28 a and 28 b are in thermal contact with the support column 41 by abutting with the fixed portion 41 b of the support column 41.
- the number of recesses 21c is not limited to two, and may be one or three or more.
- the number of the heat transfer members 28 is not limited to two, and corresponds to the number of recesses 21c. It may be one or more than three.
- the light bulb shaped lamp 1 according to the present embodiment is configured.
- the bulb-type lamp 1 according to the present embodiment uses a globe having the same shape as a globe (bulb) used for an incandescent bulb, and is attached to the support column 41 extending inward of the globe 10.
- An LED module 20 is provided. Thereby, a light distribution characteristic with a wide light distribution angle can be realized, and a light distribution characteristic similar to that of an incandescent lamp can be obtained.
- the plurality of LEDs 22 are selectively provided at positions facing each of the plurality of LEDs 22 on the back surface of the base 21 and thermally connected to the support column 41.
- the heat conduction member 28 (heat-transfer part 28a, 28b) which transfers the heat
- a translucent substrate made of alumina or the like has a problem that the temperature of the LED is likely to rise because the thermal conductivity is lower than that of metal, and the luminous efficiency of the LED is lowered.
- the light bulb shaped lamp 1 according to the present embodiment includes the heat conducting member 28, so that the heat conductivity to the support column 41 is increased and the heat dissipation of the LED can be improved. Thereby, the fall of the luminous efficiency of LED can be suppressed. Further, since the heat conducting member 28 does not hinder the light emitted by the LED 22, it is possible to ensure light diffusibility around the bulb-shaped lamp 1.
- a recess 21c is formed on the back surface of the base 21 at a position facing each of the plurality of LEDs 22, and the heat conducting member 28 is disposed inside the recess 21c.
- a plurality of LEDs 22 are arranged in a line shape on the surface of the base 21, and the heat conducting member 28 corresponds to the plurality of LEDs 22 arranged in a line on the back surface of the base 21. It is provided in a line. Thereby, the heat generated by the plurality of LEDs 22 can be efficiently transferred to the heat conducting member 28.
- the base 21 has translucency, the sealing member 23 which is the 1st wavelength conversion part arrange
- a phosphor layer 27 which is a two-wavelength conversion unit. That is, in the configuration in which the phosphor layer 27 is disposed between the base 21 and the LED 22, the heat generated by the LED 22 is difficult to transfer to the base 21. However, since the heat conducting member 28 is disposed on the back surface of the base 21, the heat generated by the LEDs 22 can be efficiently transmitted to the heat conducting member 28 and radiated.
- FIG. 10 is a schematic cross-sectional view of the illumination device 2 according to the embodiment of the present invention.
- the lighting device 2 As shown in FIG. 10, the lighting device 2 according to the embodiment of the present invention is used by being mounted on, for example, an indoor ceiling, and includes the light bulb shaped lamp 1 according to the above embodiment and the lighting fixture 3. Prepare.
- the lighting fixture 3 turns off and turns on the light bulb shaped lamp 1 and includes a fixture main body 4 attached to the ceiling and a lamp cover 5 that covers the light bulb shaped lamp 1.
- the appliance body 4 has a socket 4a.
- the base 80 of the light bulb shaped lamp 1 is screwed into the socket 4a. Electric power is supplied to the light bulb shaped lamp 1 through the socket 4a.
- heat conducting member 28 heat transfer portions 28a and 28b
- the LED module included in the light bulb shaped lamp, the heat conduction member, and the constituent elements other than the support column are the same as the components included in the light bulb shaped lamp 1 in the above embodiment, so that the LED module, Description of components other than the heat conducting member and the support is omitted.
- FIGS. 11A to 11C are diagrams showing the configuration of the heat conducting member according to the first modification of the embodiment of the present invention. Specifically, FIGS. 11A to 11C are cross-sectional views when the LED modules 120 to 320 are cut along the YZ plane (the BB ′ line in FIG. 6A).
- the LED module 120 includes a base 121 in which a recess 121c is formed.
- the recess 121c is a recess having a triangular cross section on a plane (YZ plane) perpendicular to the arrangement direction (X-axis direction) of the LEDs 22.
- the heat conducting member 128 (heat conducting portions 128a and 128b) is a portion having a triangular cross-sectional shape in a plane (YZ plane) perpendicular to the longitudinal direction (X-axis direction) corresponding to the shape of the recess 121c.
- the two heat transfer portions 128 a and 128 b are in thermal contact with the support column 41 by abutting against the fixed portion 41 b of the support column 41.
- the LED module 220 includes a base 221 in which a recess 221c is formed.
- the recess 221c is a recess having a semi-elliptical cross section on a plane (YZ plane) perpendicular to the arrangement direction (X-axis direction) of the LEDs 22.
- the heat conductive member 228 (heat transfer portions 228a and 228b) is a portion having a semi-elliptical cross-sectional shape in a plane (YZ plane) perpendicular to the longitudinal direction (X-axis direction) corresponding to the shape of the recess 221c. .
- the two heat transfer portions 228 a and 228 b are thermally connected to the support column 41 by abutting with the fixed portion 41 b of the support column 41.
- the LED module 320 includes a translucent base 321 in which a concave portion 321c is formed.
- the recess 321c is formed such that the cross-sectional shape in a plane (YZ plane) perpendicular to the arrangement direction (X-axis direction) of the LEDs 22 increases in width as it approaches the LEDs 22 (so that the width decreases as it moves away from the LEDs 22).
- the concave portion 321c is formed so that the outer edge shape in the XY plane increases as the distance from the LED 22 increases.
- the heat conduction member 328 (heat transfer portions 328a and 328b) has a width corresponding to the shape of the recess 321c, and the cross-sectional shape on the plane (YZ plane) perpendicular to the longitudinal direction (X-axis direction) is closer to the LED 22. It is formed to be large. That is, the heat transfer portions 328a and 328b are formed so that the cross-sectional area on a plane (XY plane) parallel to the surface of the base 321 on which the LEDs 22 are arranged becomes smaller as the distance from the LEDs 22 increases.
- the two heat transfer portions 328 a and 328 b are thermally connected to the support column 41 by abutting with the fixed portion 41 b of the support column 41.
- the heat conducting member 328 can be formed by applying a metal paste to the concave portion 321c of the base 321 or inserting a solid bar-like member from the X axis minus direction to the X axis plus direction.
- the same effect as the light bulb shaped lamp 1 in the above embodiment can be obtained.
- the heat conducting member 328 heat conducting portions 328a and 328b in FIG. 11C is formed so that the cross-sectional area decreases as the distance from the LED 22 increases, the light transmitted through the translucent base 321 is thermally conducted. The heat generated by the LED 22 can be efficiently transferred to the heat conducting member 328 while being blocked by the member 328.
- FIG. 12A and 12B are diagrams showing a configuration of a heat conducting member according to Modification 2 of the embodiment of the present invention. Specifically, FIG. 12A is a cross-sectional view when the LED module 420 is cut along the YZ plane, and FIG. 12B is a cross-sectional view when the LED module 520 and the column fixing portion 541b are cut along the YZ plane. .
- the LED module 420 includes a base 421 in which a recess 421c is formed.
- the base 421 has four recesses 421c corresponding to each of the four element rows configured by the plurality of LEDs 22 extending linearly in the X-axis direction.
- the recess 421c is a recess having a rectangular cross-sectional shape on a plane (YZ plane) perpendicular to the arrangement direction (X-axis direction) of the LEDs 22.
- the heat conducting member 428 has four heat transfer portions having a rectangular cross-sectional shape in a plane (YZ plane) perpendicular to the longitudinal direction (X-axis direction). .
- the four heat transfer portions are thermally connected to the support column 41 by contacting the fixed portion 41 b of the support column 41.
- the LED module 520 includes a base 521 in which a recess 521c is formed.
- the recess 521c is a recess having a rectangular cross-sectional shape on a plane (YZ plane) perpendicular to the arrangement direction (X-axis direction) of the LEDs 22.
- the heat conductive member 528 has two heat transfer portions having a rectangular cross-sectional shape in a plane (YZ plane) perpendicular to the longitudinal direction (X-axis direction). . And these two heat-transfer parts are thermally connected with the support
- the same effect as the light bulb shaped lamp 1 in the above embodiment can be obtained.
- the heat conducting member 528 and the post fixing portion 541b in FIG. 12B are integrally formed. Thereby, since the number of parts of the light bulb shaped lamp can be reduced, the assembling work at the time of manufacturing the light bulb shaped lamp can be simplified.
- FIG. 13A is a perspective view of the LED module 620 and the main shaft portion 641a of the column when viewed from the back side (Z-axis minus side) of the base 621
- FIG. 14A is a perspective view of the LED module 720 and the main shaft portion 741a of the column as viewed from the back side (Z-axis minus side) of the base 721
- FIG. 15 is a cross-sectional view of the LED module 720 cut along the line DD ′ in FIG.
- the support column does not have a fixed portion, and the main shaft portion extends to the LED module.
- the LED module 620 includes a base 621 in which recesses 621c and 621d are formed.
- the base 621 corresponds to each of a plurality of element rows (12 rows in the figure) constituted by a plurality (four in the figure) of LEDs 22 extending linearly in the Y-axis direction.
- a plurality of (in the figure, 12) recesses 621c are provided immediately below the row (in the negative Z-axis direction).
- the base 621 has one recess 621d that extends linearly in the X-axis direction and is formed so as to connect the centers of the plurality of recesses 621c.
- the recess 621c is a recess having a rectangular cross-sectional shape in a plane (XZ plane) perpendicular to the arrangement direction (Y-axis direction) of the LEDs 22, and the recess 621d is a plane perpendicular to the X-axis direction (YZ plane).
- the cross-sectional shape is a rectangular recess.
- the heat conducting member 628 includes a plurality (twelve in the figure) of heat transfer portions 628a having a rectangular cross-sectional shape in a plane (XZ plane) perpendicular to the Y-axis direction.
- the heat conducting member 628 has a rectangular cross-sectional shape on a plane perpendicular to the X-axis direction (YZ plane) formed so as to connect the plurality of heat transfer portions 628a in correspondence with the shape of the recess 621d.
- One connecting portion 628b is provided.
- the connecting portion 628b is in contact with the main shaft portion 641a of the support column. That is, the connection part 628b thermally connects each of the plurality of heat transfer parts 628a with the support.
- the plurality of heat transfer units 628a are provided at positions facing the respective LEDs 22, and the heat generated by the plurality of LEDs 22 is transferred to the plurality of heat transfer units 628a. Then, the heat is transferred to the support through the connecting portion 628b.
- the LED module 720 includes a base 721 in which concave portions 721c and 721d are formed.
- the base 721 corresponds to each of a plurality of element rows (24 rows in the figure) constituted by a plurality (two in the figure) of LEDs 22 extending linearly in the Y-axis direction.
- a plurality of (in the figure, 24) recesses 721c are provided immediately below the row (in the negative Z-axis direction).
- the base 721 has a plurality (24 in the figure) of recesses 721d formed so as to connect each of the plurality of recesses 721c and the main shaft portion 741a of the support column.
- the recess 721c is a recess having a rectangular cross section on a plane (XZ plane) perpendicular to the arrangement direction (Y-axis direction) of the LEDs 22, and the recess 721d is also a recess having a rectangular cross section.
- the heat conducting member 728 includes a plurality (24 in the figure) of heat transfer portions 728a having a rectangular cross-sectional shape in a plane (XZ plane) perpendicular to the Y-axis direction.
- the heat conducting member 728 is formed so as to connect the plurality of heat transfer portions 728a and the main shaft portion 741a in correspondence with the shape of the concave portion 721d, and has a plurality of rectangular shapes (24 in the figure).
- the connecting portion 728b is provided.
- the connecting portion 728b thermally connects each of the plurality of heat transfer portions 728a with the support.
- the plurality of heat transfer units 728a are provided at positions facing the respective LEDs 22, and the heat generated by the plurality of LEDs 22 is transferred to the plurality of heat transfer units 728a. And the said heat is transmitted to a support
- the same effect as the light bulb shaped lamp 1 in the above embodiment can be obtained.
- a plurality of heat transfer portions are provided at positions facing each of the plurality of LEDs 22, and a connecting portion that connects each of the plurality of heat transfer portions to the support column is provided.
- the heat which a plurality of LED22 generated can be efficiently transmitted to a plurality of heat transfer parts, and can be transferred to a support.
- FIG. 15A to FIG. 16B are diagrams showing a configuration of a heat conducting member according to the fourth modification of the embodiment of the present invention.
- FIG. 15A is a perspective view when the LED module 820 and the support column 41 are viewed from the back surface side (Z-axis minus side) of the base 821
- FIG. 15B is based on the LED module 920 and the support column 41. It is a perspective view when it sees from the back surface side (Z-axis minus side) of the stand 921.
- FIG. 16A is a perspective view of the LED module 1020 and the main shaft portion 1041a of the column when viewed from the back side (Z-axis minus side) of the base 1021, and FIG.
- 16B is a main shaft portion of the LED module 1120 and the column. It is a perspective view at the time of seeing 1141a from the back surface side (Z-axis minus side) of the base 1121.
- the support column does not have a fixed portion, and the main shaft portion extends to the LED module.
- the LED module 820 includes a base 821, and a heat conducting member 828 is provided on the back surface (Z-axis negative side surface) of the base 821. That is, the heat conducting member 828 is selectively provided at a position facing each of the plurality of LEDs 22 arranged on the surface of the base 821 (the surface on the Z-axis plus side).
- the heat conducting member 828 is thermally connected to the support column 41 and functions as a heat transfer unit that transfers heat generated by the plurality of LEDs 22 to the support column 41.
- the base 821 is not formed with the recess 21c as shown in FIG. 9, and a heat conductive member 828 having the same shape as the heat conductive member 28 is attached to the back surface of the base 821 and disposed.
- the heat conducting member 828 has a configuration in which the heat conducting member 28 shown in FIG. 9 is disposed so as to protrude from the base 21, and is provided so as to protrude from the back surface of the base 821.
- the base 921 is not formed with the concave portion 321c as shown in FIG. 11C, and the heat conductive member 928 having the same shape as the heat conductive member 328 is attached to the back surface of the base 921. It is attached and arranged. That is, the heat conducting member 928 has a configuration in which the heat conducting member 328 shown in FIG. 11C is disposed so as to protrude from the base 321, and is provided so as to protrude from the back surface of the base 921. As a result, the heat conducting member 928 having a shape in which the cross-sectional area decreases as the distance from the LED 22 decreases can be easily disposed on the back surface of the base 921.
- the base 1021 is not formed with the recesses 621c and 621d as shown in FIG. 13, and the heat conductive member 1028 having the same shape as the heat conductive member 628 It is pasted and arranged. That is, the heat conducting member 1028 has a configuration in which the heat conducting member 628 shown in FIG. 13 is disposed so as to protrude from the base 621 and is provided so as to protrude from the back surface of the base 1021.
- the heat conducting member 1028 corresponds to each of a plurality of element rows (12 rows in the figure) constituted by a plurality (four in the figure) of LEDs 22 extending linearly in the Y-axis direction.
- a plurality (12 in the figure) of heat transfer portions 1028a are provided immediately below the element row (Z-axis minus direction).
- the heat conducting member 1028 has one connecting portion 1028b extending linearly in the X-axis direction and formed so as to connect the centers of the plurality of heat transfer portions 1028a.
- the heat transfer section 1028a is a protrusion having a rectangular cross-sectional shape in a plane (XZ plane) perpendicular to the arrangement direction (Y-axis direction) of the LEDs 22, and the connecting section 1028b is a plane (YZ) perpendicular to the X-axis direction.
- the cross-sectional shape in a plane is a rectangular protrusion.
- the connecting portion 1028b is in contact with the main shaft portion 1041a of the support column. That is, the connection part 1028b thermally connects each of the plurality of heat transfer parts 1028a with the support.
- the plurality of heat transfer units 1028a are provided at positions facing the respective LEDs 22, and the heat generated by the plurality of LEDs 22 is transferred to the plurality of heat transfer units 1028a. Then, the heat is transferred to the support through the connecting portion 1028b.
- the base 1121 is not formed with the recesses 721c and 721d as shown in FIG. 14, and the heat conductive member 1128 having the same shape as the heat conductive member 728 is provided on the back surface of the base 1121. It is pasted and arranged. That is, the heat conducting member 1128 has a configuration in which the heat conducting member 728 shown in FIG. 13 is disposed so as to protrude from the base 721, and is provided so as to protrude from the back surface of the base 1121.
- the heat conducting member 1128 corresponds to each of a plurality of element rows (24 rows in the figure) composed of a plurality (two in the figure) of LEDs 22 extending linearly in the Y-axis direction.
- a plurality (24 in the figure) of heat transfer portions 1128a are provided immediately below the element row (Z-axis minus direction).
- the heat conducting member 1128 has a plurality (24 in the figure) of connecting portions 1128b formed so as to connect each of the plurality of heat transfer portions 1128a and the main shaft portion 1141a of the support column.
- the heat transfer section 1128a is a protrusion having a rectangular cross-section in a plane (XZ plane) perpendicular to the arrangement direction (Y-axis direction) of the LEDs 22, and the connecting section 1128b is a protrusion having a rectangular cross-section. .
- the connecting portion 1128b thermally connects each of the plurality of heat transfer portions 1128a with the support.
- the plurality of heat transfer units 1128a are provided at positions facing the respective LEDs 22, and the heat generated by the plurality of LEDs 22 is transferred to the plurality of heat transfer units 1128a. And the said heat is transmitted to a support
- the same effect as the light bulb shaped lamp 1 in the above embodiment can be obtained.
- the heat conducting member 928 in FIG. 15B is formed so that the cross-sectional area becomes smaller as the distance from the LED 22 increases, the light passing through the translucent base 921 is prevented from being blocked by the heat conducting member 928.
- the heat generated by the LED 22 can be efficiently transferred to the heat conducting member 928.
- a plurality of heat transfer portions are provided at positions facing each of the plurality of LEDs 22, and a connecting portion that connects each of the plurality of heat transfer portions to the support column is provided. Thereby, the heat which a plurality of LED22 generated can be efficiently transmitted to a plurality of heat transfer parts, and can be transferred to a support.
- the light bulb shaped lamp and the lighting device according to the present invention have been described based on the embodiments and the modifications thereof, but the present invention is not limited to these embodiments and modifications.
- the LED module has a COB type configuration in which the LED chip is directly mounted on the base, but is not limited thereto.
- it is configured by mounting a plurality of LED elements on a substrate using a package type LED element in which an LED chip is mounted in a resin-molded cavity and a phosphor-containing resin is sealed in the cavity.
- a surface mount type (SMD) LED module may be used.
- the LED module is configured to emit white light by the blue LED and the yellow phosphor, but is not limited thereto.
- a phosphor-containing resin containing a red phosphor and a green phosphor may be used so that white light is emitted by combining this with a blue LED.
- the LED 22 may be an LED that emits a color other than blue.
- a combination of phosphor particles that emit light in three primary colors (red, green, and blue) can be used as the phosphor particles.
- a wavelength conversion material other than the phosphor particles may be used.
- the wavelength conversion material absorbs light of a certain wavelength such as a semiconductor, a metal complex, an organic dye, or a pigment, and has a wavelength different from the absorbed light.
- a material containing a substance that emits light may be used.
- the LED is exemplified as the light emitting element.
- a semiconductor light emitting element such as a semiconductor laser, a light emitting element such as an organic EL (Electro Luminescence), or an inorganic EL may be used.
- a translucent substrate is used as the base of the LED module.
- the present invention is not limited to this.
- an opaque substrate having a very low total transmittance or a substantially zero total transmittance may be used as the base.
- an opaque substrate an opaque ceramic substrate, a metal base substrate, or the like can be used.
- the bulb-type LED lamp using the globe 10 having the same shape as the incandescent bulb is used.
- the present invention is not limited to this. That is, in the present embodiment, the size of the globe 10 is larger than the size of the housing 50, but the present invention is also applicable to a light bulb shaped lamp in which the size of the globe 10 is smaller than the size of the housing 50. Can do.
- the screwing part 52 b is a part of the outer casing part 52, but may be a part of the inner casing part 51. That is, the screwing part 52b may be regarded as a part of a circuit case that houses the drive circuit 70, and more specifically, the screwing part 52b may be a part of the circuit holder part 51b.
- the present invention is useful as a light bulb shaped lamp that replaces a conventional incandescent light bulb and the like, and can be widely used in lighting devices and the like.
- the light bulb shaped lamp according to the present invention can achieve high heat dissipation, it is suitable for a high output type light bulb shaped lamp.
Abstract
Description
まず、本実施の形態に係る電球形ランプ1の全体構成について、図1及び図2を用いて説明する。図1は、本発明の実施の形態に係る電球形ランプ1の外観斜視図である。また、図2は、本発明の実施の形態に係る電球形ランプ1の分解斜視図である。
図3及び図4に示すように、グローブ10は、LEDモジュール20を収納するとともに、LEDモジュール20からの光をランプ外部に透光する透光性カバーである。グローブ10の内面に入射したLEDモジュール20の光は、グローブ10を透過してグローブ10の外部へと取り出される。
LEDモジュール20は、半導体発光素子を有する発光モジュールであって、所定の光を放出する。図3及び図4に示すように、LEDモジュール20は、グローブ10の内方に配置されており、グローブ10によって形成される球形状の中心位置(例えば、グローブ10の内径が大きい径大部分の内部)に配置されることが好ましい。このように、グローブ10の中心位置にLEDモジュール20が配置されることにより、電球形ランプ1の配光特性は、従来のフィラメントコイルを用いた白熱電球と近似した配光特性となる。
結合部材30は、グローブ10と支持部材40と金属部材60とを結合する部材である。図2に示すように、結合部材30は、支持部材40の台座42(径小部42a)の周囲を囲むようにリング状に構成されている。結合部材30は、支持部材40の台座42の外周面と外側筐体部52の外郭部52aとの隙間に流し込まれた流動性絶縁樹脂(例えばシリコン)を硬化させることで成型することができる。
支持部材40は、LEDモジュール20を支持する部材であり、金属によって構成されている。ここで、支持部材40の構成について、図3及び図4を参照しながら、図5を用いて詳細に説明する。図5は、本発明の実施の形態に係る電球形ランプ1における支持部材40の外観斜視図である。
筐体50は、内方に駆動回路70が配置された絶縁性を有する絶縁ケースであり、内側筐体部(第1筐体部)51と外側筐体部(第2筐体部)52とによって構成されている。筐体50は、絶縁性樹脂材料によって構成することができ、例えば、ポリブチレンテレフタレート(PBT)によって樹脂成型することができる。
金属部材60は、筐体50における内側筐体部51を囲むようにスカート状に構成されており、内側筐体部51と外側筐体部52との間に配置される。これにより、金属部材60は駆動回路70と非接触状態とすることができ、駆動回路70の絶縁性を確保することができる。
駆動回路(回路ユニット)70は、LEDモジュール20のLED22を点灯(発光)させるための点灯回路(電源回路)であって、LEDモジュール20に所定の電力を供給する。例えば、駆動回路70は、一対のリード線70c及び70dを介して口金80から供給される交流電力を直流電力に変換し、一対のリード線70a及び70bを介して当該直流電力をLEDモジュール20に供給する。
リード線70a~70dは、いずれも合金銅リード線であり、合金銅からなる芯線と当該芯線を被覆する絶縁性の樹脂被膜とによって構成されている。
図3及び図4に示すように、口金80は、LEDモジュール20のLED22を発光させるための電力をランプ外部から受電する受電部である。口金80は、例えば、照明器具のソケットに取り付けられ、電球形ランプ1を点灯させる際、口金80は、照明器具のソケットから電力を受ける。例えば、口金80には商用電源(AC100V)から交流電力が供給される。本実施の形態における口金80は二接点によって交流電力を受電し、口金80で受電した電力は、一対のリード線70c及び70bを介して駆動回路70の電力入力部に入力される。
次に、本発明の実施の形態に係るLEDモジュール20の各構成要素について、図6~図9を用いて説明する。図6は、本発明の実施の形態に係る電球形ランプ1におけるLEDモジュール20の構成を示す図である。つまり、図6の(a)は、LEDモジュール20の平面図であり、図6の(b)は、(a)のA-A’線に沿って切断したLEDモジュール20及び固定部41bの断面図である。
図11A~図11Cは、本発明の実施の形態の変形例1に係る熱伝導部材の構成を示す図である。具体的には、図11A~図11Cは、LEDモジュール120~320をYZ平面(図6の(a)のB-B’線)で切断した場合の断面図である。
図12A及び図12Bは、本発明の実施の形態の変形例2に係る熱伝導部材の構成を示す図である。具体的には、図12Aは、LEDモジュール420をYZ平面で切断した場合の断面図であり、図12Bは、LEDモジュール520及び支柱の固定部541bをYZ平面で切断した場合の断面図である。
図13及び図14は、本発明の実施の形態の変形例3に係る熱伝導部材の構成を示す図である。具体的には、図13の(a)は、LEDモジュール620及び支柱の主軸部641aを基台621の裏面側(Z軸マイナス側)から見た場合の斜視図であり、図13の(b)は、図13の(a)のC-C’線に沿って切断したLEDモジュール620の断面図である。また、図14の(a)は、LEDモジュール720及び支柱の主軸部741aを基台721の裏面側(Z軸マイナス側)から見た場合の斜視図であり、図14の(b)は、図14の(a)のD-D’線に沿って切断したLEDモジュール720の断面図である。なお、本変形例では、支柱は固定部を有しておらず、主軸部がLEDモジュールまで延びている。
図15A~図16Bは、本発明の実施の形態の変形例4に係る熱伝導部材の構成を示す図である。具体的には、図15Aは、LEDモジュール820及び支柱41を基台821の裏面側(Z軸マイナス側)から見た場合の斜視図であり、図15Bは、LEDモジュール920及び支柱41を基台921の裏面側(Z軸マイナス側)から見た場合の斜視図である。また、図16Aは、LEDモジュール1020及び支柱の主軸部1041aを基台1021の裏面側(Z軸マイナス側)から見た場合の斜視図であり、図16Bは、LEDモジュール1120及び支柱の主軸部1141aを基台1121の裏面側(Z軸マイナス側)から見た場合の斜視図である。なお、図16A及び図16Bでは、支柱は固定部を有しておらず、主軸部がLEDモジュールまで延びている。
2 照明装置
3 点灯器具
4 器具本体
4a ソケット
5 ランプカバー
10 グローブ
11 開口部
20、120、220、320、420、520、620、720、820、920、1020、1120 LEDモジュール
21、121、221、321、421、521、621、721、821、921、1021、1121 基台
21a、21b 貫通孔
21c、121c、221c、321c、421c、521c、621c、621d、721c、721d 凹部
22 LED
22a サファイア基板
22b 窒化物半導体層
22c カソード電極
22d アノード電極
22e、22f ワイヤーボンド部
23 封止部材
24 金属配線
25 金ワイヤー
26 チップボンディング材
27 蛍光体層
28、128、228、328、428、528、628、728、828、928、1028、1128 熱伝導部材
28a、28b、128a、128b、228a、228b、328a、328b、628a、728a、1028a、1128a 伝熱部
30 結合部材
30a 縦溝部
30b 鍔部
30c 凸部
40 支持部材
41 支柱
41a、641a、741a、1041a、1141a 主軸部
41b、541b 固定部
41b1 突起部
42 台座
42a 径小部
42a1 貫通孔
42b 径大部
42b1 凹部
50 筐体
51 内側筐体部
51a 回路キャップ部
51b 回路ホルダ部
52 外側筐体部
52a 外郭部
52b 螺合部
60 金属部材
70 駆動回路
70a~70d リード線
71 回路基板
72 回路素子
80 口金
90 ネジ
628b、728b、1028b、1128b 繋ぎ部
Claims (8)
- グローブと、
前記グローブ内方に配置された基板と、
前記基板を支持する支柱と、
前記基板の一方の面上に設けられた複数の半導体発光素子と、
前記基板の他方の面上における前記複数の半導体発光素子のそれぞれと対向する位置に選択的に設けられ、前記支柱と熱的に接続されて前記複数の半導体発光素子が発生する熱を前記支柱に伝熱する伝熱部と
を備える電球形ランプ。 - 前記基板の他方の面には、前記複数の半導体発光素子のそれぞれと対向する位置に凹部が形成され、
前記伝熱部は、前記凹部内方に配置される
請求項1に記載の電球形ランプ。 - 前記基板の一方の面上には、前記複数の半導体発光素子がライン状に配置され、
前記伝熱部は、ライン状に配置された前記複数の半導体発光素子に対応して、前記基板の他方の面上にライン状に設けられる
請求項1又は2に記載の電球形ランプ。 - 前記複数の半導体発光素子のそれぞれと対向する位置に、複数の前記伝熱部が設けられ、
前記電球形ランプは、さらに、
前記複数の伝熱部のそれぞれを前記支柱と繋ぐ繋ぎ部を備える
請求項1又は2に記載の電球形ランプ。 - 前記伝熱部は、前記基板の一方の面に平行な面における断面積が、前記半導体発光素子から遠ざかるほど小さくなるように形成されている
請求項1~4のいずれか1項に記載の電球形ランプ。 - 前記伝熱部と前記支柱とは、一体に形成されている
請求項1~5のいずれか1項に記載の電球形ランプ。 - 前記基板は、透光性を有し、
前記電球形ランプは、さらに、
前記半導体発光素子を覆うように配置され、前記半導体発光素子が発する光の波長を変換する第1波長変換部と、
前記基板と前記半導体発光素子との間に配置され、前記半導体発光素子が発する光の波長を変換する第2波長変換部とを備える
請求項1~6のいずれか1項に記載の電球形ランプ。 - 請求項1~7のいずれか1項に記載の電球形ランプを備える
照明装置。
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JP2013552774A JP5588569B2 (ja) | 2012-08-24 | 2013-03-11 | 電球形ランプ及び照明装置 |
CN201390000080.XU CN203757410U (zh) | 2012-08-24 | 2013-03-11 | 灯泡形灯及照明装置 |
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JP2012-185814 | 2012-08-24 | ||
JP2012185814 | 2012-08-24 |
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CN (1) | CN203757410U (ja) |
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AT520735A4 (de) * | 2017-12-14 | 2019-07-15 | Becom Electronics Gmbh | Leiterplatte |
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TWI552393B (zh) * | 2014-07-03 | 2016-10-01 | 簡汝伊 | 光源模組之封裝方法及運用該光源模組之照明裝置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2008166081A (ja) * | 2006-12-27 | 2008-07-17 | Toshiba Lighting & Technology Corp | 照明装置及びこの照明装置を備えた照明器具 |
JP2012043641A (ja) * | 2010-08-19 | 2012-03-01 | Iwatani Internatl Corp | Led照明装置 |
WO2012060106A1 (ja) * | 2010-11-04 | 2012-05-10 | パナソニック株式会社 | 電球形ランプ及び照明装置 |
JP2012156020A (ja) * | 2011-01-26 | 2012-08-16 | Rohm Co Ltd | Led電球 |
-
2013
- 2013-03-11 CN CN201390000080.XU patent/CN203757410U/zh not_active Expired - Fee Related
- 2013-03-11 JP JP2013552774A patent/JP5588569B2/ja not_active Expired - Fee Related
- 2013-03-11 WO PCT/JP2013/001559 patent/WO2014030271A1/ja active Application Filing
- 2013-08-20 TW TW102129849A patent/TW201408941A/zh unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008166081A (ja) * | 2006-12-27 | 2008-07-17 | Toshiba Lighting & Technology Corp | 照明装置及びこの照明装置を備えた照明器具 |
JP2012043641A (ja) * | 2010-08-19 | 2012-03-01 | Iwatani Internatl Corp | Led照明装置 |
WO2012060106A1 (ja) * | 2010-11-04 | 2012-05-10 | パナソニック株式会社 | 電球形ランプ及び照明装置 |
JP2012156020A (ja) * | 2011-01-26 | 2012-08-16 | Rohm Co Ltd | Led電球 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT520735A4 (de) * | 2017-12-14 | 2019-07-15 | Becom Electronics Gmbh | Leiterplatte |
AT520735B1 (de) * | 2017-12-14 | 2019-07-15 | Becom Electronics Gmbh | Leiterplatte |
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TW201408941A (zh) | 2014-03-01 |
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