WO2012160731A1 - ランプ - Google Patents
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- Publication number
- WO2012160731A1 WO2012160731A1 PCT/JP2012/000611 JP2012000611W WO2012160731A1 WO 2012160731 A1 WO2012160731 A1 WO 2012160731A1 JP 2012000611 W JP2012000611 W JP 2012000611W WO 2012160731 A1 WO2012160731 A1 WO 2012160731A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit board
- main surface
- lead wire
- lead wires
- surface side
- Prior art date
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Classifications
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- 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
- F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
- F21V23/002—Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
-
- 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
- F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
-
- 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
- F21K9/238—Arrangement or mounting of circuit elements integrated in the light source
-
- 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
- F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
-
- 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
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
-
- 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
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/65—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction specially adapted for changing the characteristics or the distribution of the light, e.g. by adjustment of parts
-
- 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
- F21V3/00—Globes; Bowls; Cover glasses
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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
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
-
- 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
- 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
- H05K2201/09—Shape and layout
- H05K2201/09009—Substrate related
- H05K2201/09063—Holes or slots in insulating substrate not used for electrical connections
-
- 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]
-
- 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
- H05K2201/10287—Metal wires as connectors or conductors
-
- 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
- H05K2201/10431—Details of mounted components
- H05K2201/10439—Position of a single component
- H05K2201/10492—Electrically connected to another device
-
- 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
- H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
- H05K2201/10954—Other details of electrical connections
- H05K2201/10962—Component not directly connected to the PCB
-
- 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
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/3447—Lead-in-hole components
Definitions
- the present invention relates to a lamp.
- the lamp 101 includes an LED module 120 as a light source, a lighting unit 180 for supplying power to the LED module 120, a screw-in cap 130 as a power supply unit for supplying power to the lighting unit from an external power supply, and the LED module A funnel-shaped enclosure 160 having a ceiling wall and a side wall with an inner wall 120 and a base 130 attached to the outer wall and housing the lighting unit 180 inside, and an LED module 120 mounted on the outer surface of the ceiling wall And a substantially hemispherical glove 110 adhered to a housing 160.
- the lighting unit 180 is composed of a circuit board 180a and a lead type electronic component 180b mounted on the circuit board 180a. Further, the electronic component 180b is mounted on the main surface of the circuit board 180a, and lead wires 170a and 170b extending to the light source side and extending, and leads extending and extending to the feed unit side which is the base 130
- the wires 171a and 171b are soldered and extend from the main surface, respectively. That is, the lead wires 170a, 170b, 171a and 171b are connected by a general method of soldering on the other surface side with one end inserted from the main surface of the circuit board and extended from the main surface. ing.
- the LED module 120 and the lighting unit 180 are electrically connected via the lead wires 170a and 170b, and the lead wires 170a and 170b are openings 118a, which are provided through the ceiling wall of the housing 160. It is inserted through 118b and provided.
- the lighting unit 180 and the base 130 are electrically connected via lead wires 171a and 171b.
- the lighting unit 180 receives power supply from an external power supply from the base 130 via the lead wires 171a and 171b, and supplies power to the LED module 120 via the lead wires 170a and 170b.
- the circuit board 180a of the lighting unit 180 is mounted with a lead type electronic component, and the main surface side from which the lead wires 170a, 170b, 171a, 171b extend is disposed toward the base 130, and The solder surface on the other surface side which is the back surface of the circuit board 180a is provided in the housing 160 toward the ceiling wall side or the light source side of the housing 160.
- the lead wires 170a and 170b extended from the main surface of the circuit board 180a are curved in order to connect the LED module 120 and the lighting unit 180 with the lead wires 170a and 170b.
- the tip ends of the lead wires 170a and 170b are led out to the other surface side of the circuit board 180a and the light source side, and are further led out into the glove 110 through the openings 118a and 118b of the ceiling wall of the housing 160.
- the housing 160 can not be downsized, which is an obstacle to the overall downsizing of the lamp 101.
- the lead wires 170a and 170b are used as the circuit board 180a as a structure not to be folded back. It is possible to adopt a configuration in which the lead wire is directly led out from the other surface, that is, a configuration in which soldering is performed on the main surface side with one end of the lead wire inserted from the other surface and extending from the other surface. When soldering by the method, it is necessary to immerse the other surface of the circuit board 180a in a solder bath.
- the lead wires 170a and 170b themselves are immersed in the solder bath, and an adverse effect on the lead wires 170a and 170b can not be avoided. Therefore, after soldering the electronic component 180b by the flow method, the lead wires 170a and 170b may be separately soldered in a state of being extended from the other surface, but the soldering may be performed manually or plural times. In addition to the decrease in productivity, there is a possibility that the manufacturing cost may be increased.
- the present invention has been made in view of the above problems, and an object of the present invention is to provide a lamp which can be miniaturized and reduced in manufacturing cost.
- a lamp according to the present invention has a light source, a lighting unit for supplying power to the light source, and a power feeding unit for receiving power from an external power source, and the lighting unit is provided between the light source and the power feeding unit And the lighting unit has an electronic component mounted on at least one main surface, and a through hole is provided to penetrate from the first main surface to the other second main surface.
- Circuit board a first lead wire connected to the first main surface of the circuit board, and the connection destination being the light source side of the circuit board, extending from the first main surface of the circuit board and the connection destination being fed And a second lead wire on the unit side, and at least one of the connection destinations is positioned on the second main surface side of the circuit board by being inserted through the through hole, and the second main surface of the circuit board Should be connected to the connection located on the side 1 either one of the leads and the second leads, and is led to the second major surface side and inserted into the through hole from the first major surface side of the circuit board.
- any one of the first lead wire and the second lead wire is folded back between the outer peripheral edge of the circuit board and the inner surface of the side wall of the casing and led out to the second main surface side of the circuit board Since it is not necessary to secure a space for the lamp, the overall size of the lamp can be reduced.
- the lead type electronic component and the lead wire can be extended from the first main surface, it is possible to prevent the electronic component and the lead wire from being adversely affected. Therefore, the other surface of the circuit board can be soldered by the flow method, and the manufacturing cost can be reduced.
- the lamp according to at least one of the first lead wire and the second lead wire connected to the connection destination located on the second main surface side of the circuit board The shortest distance between the portion extending from the main surface and the through hole may be equal to or longer than the length defined based on the bending resistance.
- the bending radius of the first lead wire and the second lead wire of which the connection destination is located on the second main surface side of the circuit board is a length defined based on the bending resistance performance.
- the through hole is provided at a central portion of the circuit board, and the first lead wire and the second lead wire extend from the periphery of the first main surface of the circuit board. It may be something that comes out.
- the bending radius of the first lead wire and the second lead wire can be easily increased, so that the manufacture can be facilitated.
- the through hole may be formed in a shape including a wide portion and a narrow portion extending to both ends of the wide portion in a plan view.
- the manufacture can be facilitated.
- the lamp according to the present invention may have a T-like shape.
- the feeding unit may be a base.
- a lamp according to the present invention comprises a cylindrical casing for housing the lighting unit, and the base is cylindrical with a bottom and is attached to the casing so as to cover the opening of the casing.
- the space surrounded by the main surface of the circuit board of the lighting unit and the housing and the inner surface of the base has a height from the first main surface of the circuit board to the bottom of the base of the first lead wire And it may be more than the minimum length of a bending radius defined based on the bending resistance performance of each of the above-mentioned 2nd lead.
- the bending radius of the one whose connection destination is located on the second main surface side of the circuit board can be reliably made the first lead wire and the second lead wire. Since the minimum length of the bending radius defined based on the respective bending resistance performance can be set, it is possible to more reliably suppress the occurrence of breakage of the first lead wire and the second lead wire. Reliability can be improved.
- the housing may be formed in a cylindrical shape, and the central axis of the housing and the circuit board may be disposed so as to intersect with each other.
- the electronic component may be mounted on the first main surface side of the circuit board by flow soldering.
- the light source may be an LED module.
- FIG. 1 is a schematic perspective view of a lamp according to Embodiment 1.
- FIG. 1 is a schematic cross-sectional view of a lamp according to a first embodiment. The principal part of the lamp
- FIG. 1 is a schematic cross-sectional view of main parts of a lamp according to a first embodiment.
- FIG. 7 is a partially broken schematic perspective view of a lamp according to a second embodiment.
- FIG. 7 is a schematic cross-sectional view of a lamp according to a second embodiment.
- FIG. 10 is a schematic exploded perspective view of a lamp according to a third embodiment.
- the lamp 1 is, as shown in FIG. 1, a bulb-shaped LED lamp that substitutes for an incandescent bulb, and includes a globe 10, an LED module 20 as a light source, and a cap 30 as a power supply unit.
- the LED module 20 includes a stem 40 for supporting the LED module 20, a support member 50 on which the stem is erected, and a housing 60 for housing a lighting unit 80 for lighting the LED module 20.
- the lamp 1 further includes a lighting unit 80 disposed inside the housing 60 and lead wires (first lead wires for supplying power from the lighting unit 80 to the LED module 20). 70a, 70b, and lead wires (second lead wires) 71a, 71b for supplying power from the base 30 to the lighting unit 80.
- the globe 10 is formed of a translucent material such as silica glass or resin, and the LED module 20 is disposed substantially at the center of the inside.
- the glove 10 has a shape in which one is closed in a spherical shape and the other has an opening 10a, and is an A-shape (JIS C7710) similar to a general incandescent bulb.
- the LED module 20 is a COB (Chip On Board) light emitting module in which an LED chip is directly mounted on a substrate, and the surface on which a plurality of LED chips are mounted is disposed facing the top of the globe 10 ing.
- each LED chip emits light when power is supplied from the lighting unit 80 via the two lead wires 70a and 70b.
- Feeding terminals 24a and 24b are provided at both ends of the LED module 20, and the feeding terminals 24a and 24b and the lead wires 70a and 70b are electrically connected by a conductive bonding member 90 such as solder. .
- the base 30 is made of metal and has a substantially cylindrical shape with a bottom, and includes a shell 31 and an eyelet 33 attached to the shell 31 via an insulating portion 32. Further, the base 30 is E-shaped, and a screwing portion 31 a for screwing with a socket of a lighting device (not shown) is formed on the outer peripheral surface of the shell 31. Further, on the inner circumferential surface of the shell 31, a screwing portion 31b for screwing the housing 60 is formed. The base 30 is attached to the housing 60 by a screwing portion 31 b formed in the shell 31 so as to cover the opening 60 a of the housing 60.
- the stem 40 is formed substantially in a rod shape with metal, the base end 40 a is supported by the support member 50, and the LED module 20 is mounted on the tip end 40 b.
- the base end portion 40a of the stem 40 is provided with two holes 40c and 40c for inserting the lead wires 70a and 70b.
- the support member 50 is formed of metal in a substantially disc shape, and is fixed to the housing 60 so as to close the opening 10 a of the glove 10. Further, in the central portion of the support member 50, a hole 50a for inserting the lead wires 70a and 70b is penetratingly provided.
- the housing 60 is formed in a substantially cylindrical shape by a resin material.
- the inner diameter of the upper end portion of the housing 60 is substantially the same as the outer diameter of the support member 50, and a part of the inner circumferential side is in contact with the end surface of the support member 50.
- a screwing portion 60a is formed on the outer peripheral side surface of the lower end portion of the housing 60, and the shell 31 of the mouthpiece 30 is screwed to the screwing portion 60a.
- the lighting unit 80 converts AC power supplied from an external power supply through the base 30 and the two lead wires 71a and 71b into DC power, and converts the converted DC power via the two lead wires 70a and 70b.
- the LED module 20 is supplied.
- the lighting unit 80 includes a circuit board 80a formed of a flat printed wiring board or the like, and a plurality of lead type electronic components 80b including a coil etc. and mounted on the main surface which is one surface of the circuit board 80a. Equipped with
- FIG. 3A shows a whole perspective view of the lighting unit 80, that is, a view from the soldered side which is the other side, and the side on which the electronic component 80b is mounted, that is, the main surface
- FIG. 3 (b) is a view from the perspective of FIG. 3 with the electronic component 80b omitted.
- the other side refers to the back side with respect to the main surface.
- the wiring pattern on the other surface side is shown in a view (FIG. 3B) of the main surface side for convenience of explanation.
- the circuit board 80a is formed in a circular shape in a plan view, and a through hole 80a1 is provided in a substantially central portion.
- the through hole 80a1 is formed in a substantially T-shape including a wide portion 80a11 and two narrow portions 80a12 extending from both end sides of the wide portion 80a11. Further, four holes 80a2, 80a3, 80a4 and 80a5 are provided in the periphery of the circuit board 80a in order to solder the lead wires 70a, 70b, 71a and 71b to the circuit board 80a.
- the power supply line patterns 80a6 and 80a8 and the ground pattern 80a7 on the circuit board 80a are disposed along the periphery of the circuit board 80a.
- two wiring patterns 80c1 and 80c2 are formed on part of the periphery of the circuit board 80a.
- a diode bridge 80b1 intervenes between the wiring patterns 80c1 and 80c2 and the power supply line pattern 80a8 and the ground pattern 80a7.
- a wiring pattern (not shown) is formed extending to the periphery of. Further, one end of the lead wire 70a, 70b extends from the hole 80a2, 80a3, and the other end passes through the through hole 80a1 from the main surface side of the circuit board 80a on which the electronic component 80b is mounted. It is derived on the other side.
- the lead wire 70a is moved along one narrow portion 80a12, and the lead 70b is narrow Move to section 80a12. That is, by providing the wide portion 80a11 in the through hole 80a1, it is possible to easily insert the two lead wires 70a and 70b into the wide portion 80a1 at the same time while effectively utilizing the substrate area, and thereafter, lead wires 70a , 70b may be allocated to the narrow portion 80a12, so that the lighting unit 80 can be easily assembled.
- the width of the wide portion 80a1 has a thickness of two lead wires to be inserted, and the width of the narrow portion 80a12 has a thickness of one lead.
- the lead type electronic component 80b is composed of a smoothing capacitor, a current adjustment resistor, a buck-boost coil, etc., and can be attached in a state where the lead is inserted into a hole formed through the circuit board 80a. is there. Specifically, as shown in FIG. 3A, the electronic component 80b is soldered in a state in which the tip end of the lead is inserted into the hole from the main surface side of the circuit board 80a and is projected to the other surface side ing.
- the lead wires 70a and 70b extend from the main surface of the circuit board 80a of the connection source on which the electronic component 80b is mounted, and the connection destinations are the power supply terminals 24a and 24b of the LED module 20. Further, the lead wires 71 a and 71 b extend from the main surface of the circuit board 80 a of the connection source, and the connection destination is the cap 30.
- the lead wires 70a, 70b, 71a, 71b are made of a fluorine resin insulated cable formed in a circular shape in cross section. The recommended bending radius of this fluorine resin cable is set in consideration of the fatigue characteristics (bending resistance performance) of the insulator. In the fluorine resin insulated cable used for the lead wires 70a, 70b, 71a, 71b, the bending radius R is at least six times the outer diameter W of the cable.
- the lead wires 70a and 70b are led from the main surface side of the circuit board 80a on which the electronic component 80b is mounted to the other surface side of the circuit board 80a through the inside of the through hole 80a1.
- lead wire 71a is electrically connected to hole 80a4, the other end is electrically connected to eyelet 33, and one end of lead wire 71b is electrically connected to hole 80a5. The other end is electrically connected to the shell 31.
- the shortest distance L1 between the portion 80a2 of the circuit board 80a where the lead wire 70a extends and the through hole 80a1 is based on the bending resistance of the lead wire 70a.
- the specified length that is, twice the allowable bending radius of the lead 70a (12 W).
- the shortest distance L2 between the portion 80a3 from which the lead 70b extends and the through hole 80a1 is also a length defined based on the bending resistance of the lead 70b, that is, the allowable bending radius of the lead 70b. It has doubled (12 W).
- a space S (see FIG.
- the height H to the bottom portion 30a of the wire is larger than the minimum length 6W of the bending radius, which is defined based on the bending resistance performance of the lead wire 70a.
- the bending radius of the lead wire 70a can be made to be six times or more of the outer diameter of the lead wire 70a, and the occurrence of breakage of the lead wire 70a can be suppressed to improve the reliability of the lamp 1 .
- the bending radius of the lead wire 70b is also six times the outer diameter of the lead wire 70b, and similarly to the lead wire 70a, the occurrence of disconnection at the lead wire 70b is suppressed.
- the soldering of the lead type electronic component 80b and the lead wires 70a, 70b, 71a, 71b to the circuit board 80a is performed by a flow method.
- the electronic component 80b is temporarily attached to the circuit board 80a, and thereafter, the other surface of the circuit board 80a opposite to the main surface on which the electronic component 80b is mounted is immersed in a high temperature solder tank melted in a liquid state.
- the solder gets wet in the holes 80a2, 80a3, 80a4 and 80a5 in which the leads of the electronic component 80b are inserted, and the electronic component 80b is soldered to the circuit board 80a. Therefore, all the electronic components 80b are on the main surface side of the circuit board 80a so that the electronic components 80b are not deteriorated by immersing the electronic components 80b in a high temperature solder bath in the soldering process. Attached to
- the lead wires 70a and 70b are opposite to the main surface of the circuit board 80a on which the electronic component 80b is mounted in the vicinity of the outer peripheral portion of the circuit board 80a Since it is not necessary to secure a space for leading to the other surface side, it is possible to miniaturize the housing 60 and accordingly to miniaturize the entire lamp 1.
- the electronic component 80b and the lead wires 70a and 70b are provided on one side of the circuit board 80a, the electronic component 80b and the lead wires 70a and 70b can be formed on the circuit board 80a by flow soldering which has high productivity. Since it can be mounted, automation and reduction of manufacturing costs can be achieved.
- the distance between the through holes 118a and 118b for inserting the lead wires 170a and 170b and the portions of the circuit board 180a to which the lead wires 170a and 170b extend is relatively small. Since the bending radius of the lead wires 70a and 70b can be made larger than that of the lamp 101 for which the bending radius of the lead wires 170a and 170b has to be reduced, the occurrence of breakage of the lead wires 70a and 70a can be suppressed. The reliability of the lamp 1 can be improved.
- the lamp 2 according to the present embodiment is, as shown in FIG. 5 or 6, an LED module 21 as a light source, a base 30, a globe 10, a base 41, a beam splitter 90, and a housing 61. , Lighting unit 80.
- the lamp 2 further includes lead wires (first lead wires) 70 a and 70 b for supplying power from the lighting unit 80 to the LED module 21, and the cap 30 to the lighting unit 80 as shown in FIG.
- Lead wires (second lead wires) 71a and 71b for supplying power are given the same reference numerals, and the description thereof will be omitted as appropriate.
- the LED module 21 includes a substrate 21 a and a plurality of LED elements 21 b disposed at substantially equal intervals along the peripheral portion of the substrate 21 a.
- the substrate 21a is formed in a disk shape, has an opening 21c penetrating in the center in a plan view, and extends inward from two mutually opposing locations in the opening 21c in the radial direction. It has the extension part 21a1 to which it protrudes. Further, the extension terminals 21a1 are provided with feed terminals 21a2 and 21a3, and the lead wires 70a and 70b are electrically connected.
- the base 41 is formed of a metal material in an annular shape having a substantially rectangular cross section, and the LED module 21 is mounted on the upper surface.
- the housing 61 is composed of an outer housing 61a made of a metal material and an inner housing 61b made of a synthetic resin.
- the outer housing 61a is formed in a substantially bowl shape and has an opening 61a1 having a circular shape in plan view at the bottom.
- a base 41 is attached to the inside of the outer housing 61a so as to surround the outer periphery of the opening 61a1.
- a glove 10 formed in a substantially hemispherical shape is attached to the outer housing 61a so as to cover the upper side of the outer housing 61a.
- an insulating member 62 is interposed between the outer housing 61a and the shell 31 of the base 30, and electrical insulation between the outer housing 61a and the shell 31 of the base 30 is secured. .
- the inner case 61b is formed in a substantially cylindrical shape and a main body portion 61b1 which is partially inserted into the opening 61a1 of the outer case 61a, and is formed in a disc shape and is inner side from the upper end side of the main body portion 61b1.
- a lid 61b2 to be fitted into the housing.
- the lighting unit 80 is attached to the lid 61b2, and the surface of the lid 61b2 to which the lighting unit 80 is attached in a state where the lid 61b2 is attached to the main body 61b1 is the inner case 61b. Face inwards.
- a hole 61b21 having a circular shape in a plan view is formed in a substantially central portion in a plan view, and the lead wires 70a and 70b are inserted.
- the main body portion 61b1 is provided with a notch portion 61b11 at a position corresponding to the extension portion 21a1 of the substrate 21a of the LED module 21 at the upper end portion.
- the tip of the extension 21a1 is inserted into the main body 61b1 through the notch 61b11.
- the beam splitter 90 is formed in a bottomed cylindrical shape of a translucent material such as silica glass, and a bottom portion 90a is attached to an upper end portion of the inner casing 61b.
- An opening 90a1 having a substantially circular shape in a plan view is pierced in a substantially central portion of the bottom 90a.
- the beam splitter 90 is formed in a substantially cylindrical shape whose outer diameter gradually increases from the lower end to the upper end.
- the lighting unit 80 is formed in a circular shape in a plan view, and has a circuit board 80a having a through hole 80a1 formed in the center and a plurality of lead type electronic parts mounted on the circuit board 80a. And a component 80b.
- the lead wires 70a, 70b, 71a, 71b are led out to the main surface side of the circuit board 80a on which the electronic component 80b is mounted in each of four holes (not shown) formed through the periphery of the circuit board 80a. It is connected by soldering in the following manner.
- the four holes are electrically connected to the circuit including the electronic component 80b.
- the lead wires 70 a and 70 b are led out from the main surface side of the circuit board 80 a of the connection source on which the electronic component 80 b is mounted, and the connection destinations are the power supply terminals 21 a 2 and 21 a 3 of the LED module 21.
- the lead wires 70a and 70b are led from the main surface side of the circuit board 80a on which the electronic component 80b is mounted to the other surface side of the circuit board 80a through the inside of the through hole 80a1.
- the lead wires 70a and 70b are further led to the outside of the inner case 61b through the opening 61b21 formed in the lid 61b2, and connected to the feeding terminals 21a2 and 21a3 provided on the extension 21a1.
- the bending radius of the lead wires 70a and 70b is a length defined based on the bending resistance performance of each of the lead wires 70a and 70b, that is, six times the outer diameter of each of the lead wires 70a and 70b.
- the lead wires 71 a and 71 b are led out from the main surface side of the circuit board 80 a of the connection source, and the connection destination is the cap 30.
- the lead wires 70a and 70b are provided on the outer peripheral portion of the circuit board 80a on the inner side of the inner case 61b opposite to the main surface of the circuit board 80a on which the electronic components 80b are mounted. Since it is not necessary to secure a space for leading to the other surface side, it is possible to miniaturize the inner casing 61 b and accordingly to miniaturize the entire lamp 1.
- the electronic component 80b and the lead wires 70a and 70b are provided on one side of the circuit board 80a, the electronic component 80b and the lead wires 70a and 70b can be formed on the circuit board 80a by flow soldering which has high productivity. Since the mounting can be performed, the manufacturing cost can be reduced.
- the distance between the through holes 118a and 118b for inserting the lead wires 170a and 170b and the portions of the circuit board 180a from which the lead wires 170a and 170b are led out is relatively small. Since the bending radius of the lead wires 70a and 70b can be made larger than that of the lamp 101 for which the bending radius of the lead wires 170a and 170b has to be reduced, the occurrence of breakage of the lead wires 70a and 70a can be suppressed. The reliability of the lamp 2 can be improved.
- Embodiment 3 The lamp 2 according to the present embodiment is a straight tube fluorescent lamp type LED lamp, and as shown in FIG.
- the lamp 3 further includes lead wires (first lead wires) 70 a and 70 b for supplying power from the lighting unit 80 to the LED module 22 and power for supplying power to the lighting unit 80 from the base 35. It has lead wires (second lead wires) 71a and 71b.
- first lead wires first lead wires
- second lead wires second lead wires
- the LED module 22 includes an elongated substrate 22 a and a plurality of LED elements 22 b disposed along the longitudinal direction of the substrate 22 a.
- the plurality of LED elements are electrically connected in series by a wiring pattern (not shown) formed on the substrate 22a.
- feed terminals 22 c (only one of which is shown) are provided at both ends in the longitudinal direction of the substrate 22 a.
- the glass tube 11 has the same dimensional standard as the glass tube before sealing at both ends used for manufacturing a fluorescent lamp defined in JIS (Japanese Industrial Standard), and conforms to the JIS standard (5.3 in JIS C7617-2) It has the same outer diameter as the luminous tube (glass tube) of the fluorescent lamp.
- JIS Japanese Industrial Standard
- JIS C7617-2 Japanese Industrial Standard
- the base 35 is composed of a main body portion 35a formed of a synthetic resin in a bottomed cylindrical shape, and a pair of base pins 35b and 35c formed of a metal material.
- the base 35 conforms to, for example, the G13 standard.
- the lighting unit 80 is formed in a circular shape in a plan view, and has a circuit board 80a having a through hole 80a1 formed in the center and a plurality of lead type electronic parts mounted on the circuit board 80a. And a component 80b.
- the lead wires 70 a and 70 b extend from the main surface side of the circuit board 80 a of the connection source on which the electronic component 80 b is mounted, and the connection destination is the power supply terminal 22 c of the LED module 22.
- the lead wires 70a and 70b are led from the main surface side of the circuit board 80a on which the electronic component 80b is mounted to the other surface side of the circuit board 80a through the inside of the through hole 80a1.
- the bending radius of the lead wires 70a and 70b is a length defined based on the bending resistance performance of each of the lead wires 70a and 70b, that is, six times the outer diameter of each of the lead wires 70a and 70b.
- the lead wires 71 a and 71 b extend from the main surface side of the circuit board 80 a, and the connection destinations are the cap pins 35 b and 35 c of the cap 35.
- the lead wires 70a and 70b are provided on the outer periphery of the circuit board 80a, and the other side opposite to the main surface of the circuit board 80a on which the electronic component 80b is mounted Since there is no need to secure a space for the side to be led out, the cap 35 can be miniaturized accordingly.
- the electronic component 80b and the lead wires 70a and 70b are provided on one side of the circuit board 80a, the electronic component 80b and the lead wires 70a and 70b can be formed on the circuit board 80a by flow soldering which has high productivity. Since the mounting can be performed, the manufacturing cost can be reduced.
- the distance between the through holes 118a and 118b for inserting the lead wires 170a and 170b and the portions where the lead wires 170a and 170b extend on the circuit board 180a is relatively small. Since the bending radius of the lead wires 70a and 70b can be made larger than that of the lamp 101 for which the bending radius of the lead wires 170a and 170b has to be reduced, the occurrence of breakage of the lead wires 70a and 70a can be suppressed. The reliability of the lamp 3 can be improved.
- the example including the LED modules 20, 21 and 22 has been described, but the present invention is not limited to this.
- a light emitting module having an organic EL element or an inorganic EL element (electric luminescence element) may be provided.
- the base pins 35b and 35c are disposed on the main surface side of the circuit board 80a on which the electronic component 80b is mounted, and the LED module on the other surface side of the circuit board 80a.
- the example where 22 is arranged has been described, it is not limited thereto.
- the LED module 22 is disposed on the main surface side of the circuit substrate 80a on which the electronic component 80b is mounted, and the base pins 35b and 35c are disposed on the other surface side of the circuit substrate 80a. May be In this case, the lead wires 71a and 71b are led out from the main surface side of the circuit board 80a to the other surface side.
- the base 30 is disposed on the main surface side of the circuit board 80a on which the electronic component 80b is mounted, and the LED module 20 on the other surface side of the circuit board 80a.
- the example where 21 is arranged has been described, it is not limited to this.
- the LED modules 20 and 21 are disposed on the main surface side of the circuit board 80a on which the electronic component 80b is mounted
- the base 30 is disposed on the other surface side of the circuit board 80a
- the lead wires 71a and 71b are circuits. It may be derived from the main surface side of the substrate 80 a to the other surface side.
- the example is described in which the electronic component 80b is mounted only on the main surface side of the circuit board 80a, but the present invention is not limited to this.
- a surface mount electronic component to be soldered by a reflow method may be mounted on the other surface side of the circuit board 80a.
- surface-mounted electronic components to be soldered by the reflow method may be mounted on the main surface side of the circuit board 80a.
- the through holes 80a1 are described as being T-shaped, but the shape of the through holes 80a1 is not limited to this. For example, it may be rectangular, circular or elliptical in plan view. Alternatively, the shape of the through hole 80a1 may be formed in a cross shape in plan view.
- the through hole 80a1 is formed in a substantially central portion of the circuit board 80a, but the position of the through hole 80a1 is not limited to this. .
- it may be formed at a position shifted from the central portion of the circuit board 80a to the outer peripheral side.
- the lead wires 70a, 70b, 71a, 71b are soldered to the circuit board 80a.
- the present invention is not limited to this.
- the lead wire 70a is electrically connected to the power supply line pattern 80a6 on the circuit board 280a via the wrapping terminal 280a2. Further, the lead wire 70b is electrically connected to the power supply line pattern 80a8 on the circuit board 280a via the wrapping terminal 280a3. The lead wires 71a and 71b are electrically connected to the wiring patterns 80c1 and 80c2 on the circuit board 280a via the wrapping terminals 280a4 and 280a5.
- the wrapping terminal 280a2 is composed of a rectangular plate-like base portion 1280a2 and a prismatic pin 1281a2 protruding from the main surface of the base portion 1280a2.
- metal pads (not shown) for electrically connecting the power supply line pattern 80a6 formed on the circuit board 280a and the pins 1281a2 on the back surface of the base portion 1280a2 opposite to the main surface ) Is formed.
- the wrapping terminal 280a2 is disposed on the circuit board 280a2 in a state where the metal pad is soldered to the power supply line pattern 80a6.
- the lapping terminals 280a3, 280a4 and 280a5 also have the same configuration.
- tip part of the lead wire 70a was exposed is wound around pin 1281a2 of the lapping terminal 280a2.
- the core wire bites into the edge portion of the prismatic pin 1281a2.
- the lead wires 70b, 71a, 71b are similarly wound around the pins of the lapping terminals 280a3, 280a4, 280a5.
- the lamp according to the invention is widely available for lighting applications in general.
Abstract
Description
<実施の形態2>
本実施の形態に係るランプ2は、図5または図6に示すように、光源であるLEDモジュール21と、口金30と、グローブ10と、基台41と、ビームスプリッタ90と、筐体61と、点灯ユニット80とを備える。
<実施の形態3>
本実施の形態に係るランプ2は、直管蛍光灯形のLEDランプであり、図7に示すように、LEDモジュール22と、LEDモジュール22を収納する直管型のガラス管11と、ガラス管11の両端部に取着された口金35と、点灯ユニット80とを備える。そして、ランプ3は、更に、点灯ユニット80からLEDモジュール22への電力供給を行うためのリード線(第1リード線)70a,70bと、口金35から点灯ユニット80への電力供給を行うためのリード線(第2のリード線)71a,71bを有している。なお、実施の形態1と同様の構成については、同一の符号を付して適宜説明を省略する。
(1)前述の実施の形態1乃至3では、LEDモジュール20,21,22を備える例について説明したが、これに限定されるものではない。例えば、有機EL素子や無機EL素子(エレクトリックルミネッセンス素子)を有する発光モジュールを備えるものであってもよい。
10 グローブ
11 ガラス管
20,21,22 LEDモジュール(光源)
30,35 口金
35b,35c 口金ピン
31 シェル
32 絶縁部
33 アイレット
40 ステム
50 支持部材
60,61 筐体
61a 外側筐体
61b 内側筐体
70a,70b リード線(第1リード線)
71a,71b リード線(第2リード線)
80 点灯ユニット
80a 回路基板
80a1 貫通孔
80b 電子部品
280a2,280a3,280a4,280a5 ラッピング端子
Claims (10)
- 外部電源から受電する給電ユニットとを有し、光源と給電ユニットとの間に前記点灯ユニットが配置されてなるランプであって、
前記点灯ユニットは、
少なくとも1つの主面に電子部品が実装されているとともに、第1の主面から他の第2の主面に貫通する貫通孔が設けられた回路基板と、
前記回路基板の前記第1の主面に接続され且つ接続先が前記回路基板の前記光源側である第1リード線と、
前記回路基板の前記第1の主面から延出され且つ接続先が前記給電ユニット側である第2リード線とを備え、
前記接続先のうち少なくとも一方が前記貫通孔に挿通されることにより前記回路基板の前記第2の主面側に位置しており、前記回路基板の前記第2の主面側に位置している前記接続先に対して接続すべき前記第1リード線および前記第2リード線のうちいずれか一方を、前記回路基板の前記第1の主面側から前記貫通孔を挿通して前記第2の主面側に導出させている
ことを特徴とするランプ。 - 前記回路基板の前記第2の主面側に位置している前記接続先に接続された前記第1リード線および前記第2リード線のうちの少なくとも一方における前記第1の主面に接続された部位と前記貫通孔との間の最短距離が、耐屈曲性能に基づいて規定される長さ以上である
ことを特徴とする請求項1記載のランプ。 - 前記貫通孔は、前記回路基板の中央部に設けられ、
前記第1リード線および前記第2リード線の一端部は、前記回路基板の前記第1の主面の周部から延出してなり、他端部は前記貫通孔に挿通されている
ことを特徴とする請求項1または請求項2に記載のランプ。 - 前記貫通孔は、平面視で幅広部と前記幅広部の両端側に延びた幅狭部とを有することを特徴とする請求項1乃至3のいずれか1項に記載のランプ。
- 前記形状は、T字状である
ことを特徴とする請求項4記載のランプ。 - 前記給電ユニットは、口金である
ことを特徴とする請求項1乃至5のいずれか1項に記載のランプ。 - 前記点灯ユニットを格納する筒状の筐体を備え、
前記口金は、有底筒状であり且つ前記筐体の開口を覆う形で前記筐体に取着されてなり、
前記点灯ユニットの前記回路基板の前記第1の主面と前記筐体および前記口金の内側面とで囲まれる空間は、前記回路基板の前記第1の主面から前記口金の底部までの高さが、前記第1リード線および前記第2リード線それぞれの耐屈曲性能に基づいて規定される、前記曲げ半径の最小長さ以上である
ことを特徴とする請求項6記載のランプ。 - 前記筐体は、円筒状に形成され、
前記筐体の中心軸と前記回路基板とが交差して配置されている
ことを特徴とする請求項7記載のランプ。 - 前記電子部品は、前記回路基板の前記第2の主面をフロー方式で半田付けすることにより前記回路基板の前記第1の主面側に実装されている
ことを特徴とする請求項1乃至8のいずれか1項に記載のランプ。 - 前記光源は、LEDモジュールからなる
ことを特徴とする請求項1乃至9のいずれか1項に記載のランプ。
Priority Applications (4)
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US14/118,595 US9091398B2 (en) | 2011-05-20 | 2012-01-31 | Light |
EP12789149.7A EP2711605B1 (en) | 2011-05-20 | 2012-01-31 | Light |
CN201280024577.5A CN103547853B (zh) | 2011-05-20 | 2012-01-31 | 灯 |
JP2012524954A JP5176004B1 (ja) | 2011-05-20 | 2012-01-31 | ランプ |
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JP2011-113943 | 2011-05-20 | ||
JP2011113943 | 2011-05-20 |
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WO2012160731A1 true WO2012160731A1 (ja) | 2012-11-29 |
Family
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PCT/JP2012/000611 WO2012160731A1 (ja) | 2011-05-20 | 2012-01-31 | ランプ |
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EP (1) | EP2711605B1 (ja) |
JP (1) | JP5176004B1 (ja) |
CN (1) | CN103547853B (ja) |
WO (1) | WO2012160731A1 (ja) |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN103939854A (zh) * | 2013-01-22 | 2014-07-23 | 松下电器产业株式会社 | 照明用光源以及照明装置 |
EP2757307A1 (en) * | 2013-01-22 | 2014-07-23 | Panasonic Corporation | Illumination light source and lichting apparatus |
JP2014143028A (ja) * | 2013-01-22 | 2014-08-07 | Panasonic Corp | 照明用光源及び照明装置 |
US9441821B2 (en) | 2013-01-22 | 2016-09-13 | Panasonic Intellectual Property Management Co., Ltd. | Illumination light source and lighting apparatus |
JP2014157690A (ja) * | 2013-02-14 | 2014-08-28 | Panasonic Corp | 照明用光源および照明装置 |
WO2015007904A1 (de) * | 2013-07-19 | 2015-01-22 | Osram Gmbh | Leuchtvorrichtung mit halbleiterlichtquelle und treiberplatine |
Also Published As
Publication number | Publication date |
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JP5176004B1 (ja) | 2013-04-03 |
EP2711605B1 (en) | 2015-11-25 |
JPWO2012160731A1 (ja) | 2014-07-31 |
CN103547853A (zh) | 2014-01-29 |
US20140103794A1 (en) | 2014-04-17 |
US9091398B2 (en) | 2015-07-28 |
CN103547853B (zh) | 2016-05-04 |
EP2711605A1 (en) | 2014-03-26 |
EP2711605A4 (en) | 2014-10-29 |
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