EP2194309B1 - Stromversorgungsvorrichtung und Fahrzeuglampe - Google Patents

Stromversorgungsvorrichtung und Fahrzeuglampe Download PDF

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Publication number
EP2194309B1
EP2194309B1 EP09178327.4A EP09178327A EP2194309B1 EP 2194309 B1 EP2194309 B1 EP 2194309B1 EP 09178327 A EP09178327 A EP 09178327A EP 2194309 B1 EP2194309 B1 EP 2194309B1
Authority
EP
European Patent Office
Prior art keywords
terminal piece
connecting portion
side connecting
bus bar
positive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP09178327.4A
Other languages
English (en)
French (fr)
Other versions
EP2194309A2 (de
EP2194309A3 (de
Inventor
Noriaki Ito
Hironori Tsukamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koito Manufacturing Co Ltd
Original Assignee
Koito Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koito Manufacturing Co Ltd filed Critical Koito Manufacturing Co Ltd
Publication of EP2194309A2 publication Critical patent/EP2194309A2/de
Publication of EP2194309A3 publication Critical patent/EP2194309A3/de
Application granted granted Critical
Publication of EP2194309B1 publication Critical patent/EP2194309B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/6608—Structural association with built-in electrical component with built-in single component
    • H01R13/6625—Structural association with built-in electrical component with built-in single component with capacitive component
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/717—Structural association with built-in electrical component with built-in light source
    • H01R13/7175—Light emitting diodes (LEDs)

Definitions

  • the present invention relates to an electric power feed device and a vehicle lamp. More specifically, the present invention relates to an electric power feed device of a vehicle lamp which feeds electric power from a power supply to a semiconductor light emitting device serving as a light source of the vehicle lamp.
  • bus bars are generally being used in place of electric wires.
  • a bus bar is a strip of an electrical conductor (e.g., a metal plate).
  • a bus bar is used, for example, for supplying electric power from a power supply to a semiconductor light emitting device (e.g., a light emitting diode) provided inside a vehicle lamp such as a stop lamp (see, e.g., JP 2001-063454 A ).
  • a vehicle lamp that uses a light emitting diode has a drawback that it may undesirably flash due to a noise.
  • an illustrative aspect of the present invention provides a vehicle lamp as defined in claim 1, which comprises an electric power feed device adapted to feed electric power from a power supply to the vehicle lamp, and at least one semiconductor light emitting device as a light source.
  • the electric power feed device comprises a bus bar and an interposing unit which is attachable to the bus bar.
  • the bus bar comprises a positive side connecting portion adapted to be electrically coupled to a positive terminal of the power supply and a negative side connecting portion adapted to be electrically coupled to a negative terminal of the power supply to electrically couple the at least one semiconductor light emitting device to the positive and negative terminals of the power supply.
  • the interposing unit is adapted to interpose and electrically couple, when attached to the bus bar, at least one electronic component between the positive side connecting portion and the negative side connecting portion of the bus bar.
  • an electronic component such as a capacitor can be added without modifying the bus bar configuration or the arrangement of circuit elements mounted on the bus bar. Consequently, for example, a line noise suppressing capacitor can easily be added to the electric power feed device for use in a lamp of a vehicle in which a line noise is likely to be generated.
  • the at least one semiconductor light emitting device emits light by the electric power fed from the power supply via the electric power feed device.
  • the at least one electronic component which is interposed and electrically coupled between the positive side connecting portion and the negative side connecting portion of the bus bar via the interposing unit comprises a capacitor.
  • the interposing unit may comprise a positive terminal piece which is made of a conductive material and is adapted to be electrically connected to the positive side connecting portion, a negative terminal piece which is made of a conductive material and is adapted to be electrically connected to the negative side connecting portion, and a holder which is made of an electrically insulative material to hold the positive terminal piece and the negative terminal piece such that the positive terminal piece and the negative terminal piece are electrically insulated from each other.
  • This configuration is advantageous in that a short circuit between the positive side connecting portion and the negative side connecting portion of the bus bar is reliably prevented from occurring when mounting the interposing unit.
  • each of the positive terminal piece and the negative terminal piece may comprise a crimp terminal adapted to be crimped to fasten the electronic component to the interposing unit.
  • the electronic component can be attached to the interposing unit without soldering, so that the assembling work is facilitated.
  • the electronic component may be attached to the interposing unit by welding, pressure bonding, or press fitting into the terminals.
  • the electric power feed device may further comprise a base to which the bus bar is fixed.
  • the positive side connecting portion and the negative side connecting portion of the bus bar may be partially protruded out from the base to form a connector, and the interposing unit may be configured to fit the connector.
  • This configuration is advantageous in that the interposing unit can easily be electrically connected between the positive side connecting portion and the negative side connecting portion of the bus bar.
  • each of the positive terminal piece and the negative terminal piece may comprise a holding portion.
  • the interposing unit may be attached to the bus bar such that the positive side connecting portion is held between the holding portion of the positive terminal piece and the holder, and such that the negative side connecting portion is held between the holding portion of the negative terminal piece and the holder.
  • This configuration is advantageous in that the interposing unit can easily be attached to the bus bar.
  • the holder may comprise a recess portion which provides a hollow space between the holding portions of the positive terminal piece and the negative terminal piece.
  • This configuration is advantageous in that, even after attaching the interposing unit to the bus bar, a coupling part of the bus bar between the positive side connecting portion and the negative side connecting portion can be cut without damaging the interposing unit by inserting a cutting tool into the space provided by the recess portion.
  • an electric power feed device 10 of the exemplary embodiment includes a bus bar 20, a base 30 on which the bus bar 20 is fixed, and an interposing unit 100 to which an electronic component 200 is firmly attached.
  • the electric power feed device 10 is used, for example, as a part of a vehicle lamp (e.g., a high mount stop lamp) of an automobile to feed electric power from a power supply to a light source of the vehicle lamp.
  • a vehicle lamp e.g., a high mount stop lamp
  • the bus bar 20 is formed from a conductive plate material such as a copper plate, and is fixed to the base 30 by means of, for example, screws or engagement claws.
  • the base 30 is made of an electrically insulative material such as a resin, and has a rectangular cuboid shape.
  • the bus bar 20 is fabricated, for example, by sheet metal working.
  • the base 30 is fabricated, for example, by injection molding.
  • the bus bar 20 has a plurality of conductive parts 23, adjacent ones of which are connected by a coupling part 28 respectively.
  • Each of the conductive parts 23 has a horizontal portion which is fixed to an upper surface of the base 30, and a vertical portion which upwardly extends from either or both of the longitudinal side edges of the base 30.
  • the coupling parts 28 are ultimately removed in the manufacturing process of the electric power feed device 10. However, for the sake of convenience in the following description, the electric power feed device 10 is illustrated together with the coupling parts 28 unremoved.
  • a diode 24, resistors 25, and light emitting diodes 50 are each fixed between the horizontal portion of associated one of the conductive part 23 and the horizontal portion of another conductive part 23 adjacent thereto. These electronic components are fixed to the associated conductive parts 23 by, for example, crimping a portion of the respective conductive parts 23. Alternatively, the electronic components may be fixed to the associated conductive parts 23 by pressure bonding, soldering or welding.
  • the light emitting diode 50 is an example of the semiconductor light emitting device.
  • Two of the conductive parts 23 have the respective vertical portions on the same longitudinal side edge of the base 30 (the front side edge of the base 30 in Fig. 4 ).
  • One of the two conductive parts 23 has a positive side connecting portion 21 and the other of the two conductive parts 23 has a negative side connecting portion 22.
  • the positive side connecting portion 21 and the negative side connecting portion 22 are located at a central portion in the longitudinal direction of the base 30, and are connected via the associated coupling part 28.
  • the positive side connecting portion 21 is adapted to be electrically coupled to a positive terminal of a power supply (not shown), and the negative side connecting portion 22 is adapted to be electrically coupled to a negative terminal of the power supply.
  • the positive side connecting portion 21 and the negative side connecting portion 22 are connected to the power supply via conductive members such as feeder wires respectively.
  • the power supply is a direct current power source such as an automotive battery.
  • the interposing unit 100 holds the electronic component 200, and is mounted, during the manufacture of the electric power feed device 10, onto the vertical portions of the positive side connecting portion 21 and the negative side connecting portion 22, i.e., onto a central portion A of the bus bar 20 in the longitudinal direction of the base 30 (see Figs. 2 and 4 ). Accordingly, as shown in the circuit configuration of Fig. 3 , the electronic component 200 is interposed and electrically coupled between the positive side connecting portion 21 and the negative side connecting portion 22 of the lighting circuit including the conductive parts 23, the diode 24, the resistors 25 and the light emitting diodes 50.
  • the electronic component 200 is a capacitor, and filters out an external line noise which would otherwise adversely affect the lighting circuit on the electric power feed device 10.
  • this electronic component 200 i.e., the capacitor
  • this electronic component 200 is electrically connected in parallel to the lighting circuit by using of the interposing unit 100. Consequently, countermeasures against line noise can be improved without modifying the design of the bus bar 20, etc.
  • the interposing unit 100 has a positive terminal piece 110, a negative terminal piece 120, and a holder 130 which holds the positive terminal piece 110 and the negative terminal piece 120.
  • the positive terminal piece 110 and the negative terminal piece 120 are made of a conductive material.
  • each of the positive terminal piece 110 and the negative terminal piece 120 may be formed from a stainless steel plate.
  • the holder 130 is formed made of an electrically insulative material such as a plastic.
  • Each of positive terminal piece 110 and the negative terminal piece 120 has a crimp terminal 112, 122.
  • the crimp terminal 112, 122 may be formed to horizontally extend.
  • the positive terminal piece 110 and the negative terminal piece 120 are fabricated by, for example, sheet metal working.
  • the holder 130 has two pairs of engagement grooves 131, 132 which are formed such that the corresponding portions of the holder 130 are cut out.
  • the engagement grooves 131, 132 are formed at a central portion and respective end portions of the holder in a longitudinal direction of the holder 130.
  • the holder 130 has a recess portion 135 which is hollowed upward from a central portion of a lower surface of the holder 130.
  • the pairs of engagement grooves 131, 132 are symmetrically configured with respect to a horizontal direction orthogonal to the longitudinal direction of the holder 130.
  • One pair of the engagement grooves 131 engages with horizontal side portions of the positive terminal piece 110, and the other pair of the engagement grooves 132 engages with horizontal side portions of the negative terminal piece 120.
  • locking projections 133, 134 are provided on the upper surface of the holder 130.
  • the locking projection 133 engages with a horizontally extending locking hole 111 of the positive terminal piece 110
  • the locking projection 134 engages with a horizontally extending locking hole 121 of the negative terminal piece 120.
  • the positive terminal piece 110, the negative terminal piece 120, and the holder 130 are mutually fixed to each other by the locking holes 111, 121 of the positive terminal piece 110 and the negative terminal piece 120, and the engagement grooves 131, 132 and the locking projections 133, 134 of the holder 130.
  • the electronic component 200 is fixed and electrically connected to the positive terminal piece 110 and the negative terminal piece 120 in the manner described above.
  • vertically extending holding portions 113 of the positive terminal piece 110 and vertically extending holding portions 123 of the negative terminal piece 120 are disposed on respective sides of the recess portion 135 of the holder 130.
  • the recess portion 135 is arranged between the holding portions 113 of the positive terminal piece 110 and the holding portions 123 the negative terminal piece 120 to provide a hollow space between the holding portions 113 of the positive terminal piece 110 and the holding portions 123 the negative terminal piece 120.
  • the vertical portion of the positive side connecting portion 21 of the bus bar 20 is inserted and held between the holding portions 113 of the positive terminal piece 110 and a front surface of the holder 130, and the vertical portion of the negative side connecting portion 22 of the bus bar 20 is inserted and held between and the holding portions 123 of the negative terminal piece 120 and the front surface of the holder 130, whereby the interposing unit 100 is firmly attached and fixed to the bus bar 20.
  • the interposing unit 100 is fixed to the bus bar 20 such that the coupling part 28 between the positive side connecting portion 21 and the negative side connecting portion 22 is positioned between the holding portions 113 of the positive terminal portion 110 and the holding portions 123 of the negative terminal piece 120.
  • a hollow space is provided behind the coupling part 28 by the recess portion 135 of the holder 130. Consequently, even after the interposing unit 100 is mounted on the bus bar 20, a cutting tool can be inserted into the hollow space from the front of the bus bar 20 so that the coupling part 28 can be cut without damaging the interposing unit 100.
  • Fig. 7 is an enlarged view of a central portion of a bottom face of the base 30.
  • the positive side connecting portion 21 and the negative side connecting portion 22 of the bus bar 20 may penetrate through the base 30 and protrude out from the bottom face of the base 30 to form a positive terminal 26 and a negative terminal 27 of a connector 29.
  • the interposing unit 100 may be configured to fit the connector 29 such that the positive terminal 26 and the negative terminal 27 of the connector 29 are inserted into the interposing unit 10.
  • the electronic component 200 can easily be interposed between the positive side terminal 26 and the negative side terminal 27.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Claims (6)

  1. Fahrzeugleuchte, umfassend:
    eine Stromversorgungsvorrichtung (10), die dazu ausgelegt ist, der Fahrzeugleuchte elektrischen Strom von einer Gleichstromquelle zuzuführen,
    wenigstens eine lichtemittierende Halbleitervorrichtung (50) als Lichtquelle, die mittels des elektrischen Stroms, der über die Stromversorgungsvorrichtung (10) von der Stromquelle zugeführt wird, Licht emittiert,
    wenigstens ein elektronisches Bauteil (200), das einen Kondensator umfasst,
    wobei die Stromversorgungsvorrichtung (10) umfasst:
    eine Busschiene (20), die wenigstens eine lichtemittierende Halbleitervorrichtung (50) mit positiven und negativen Anschlüssen der Stromquelle verbindet, und
    eine zwischengeschaltete Einheit (100),
    wobei die Busschiene (20) umfasst:
    einen Verbindungsabschnitt zur positiven Seite (21), der dazu ausgelegt ist, elektrisch mit dem positiven Anschluss der Stromquelle verbunden zu werden, und
    einen Verbindungsabschnitt zur negativen Seite (22), der dazu ausgelegt ist, elektrisch mit dem negativen Anschluss der Stromquelle verbunden zu werden,
    dadurch gekennzeichnet, dass die zwischengeschaltete Einheit (100) an der Busschiene (20) befestigt werden kann und, wenn sie an der Busschiene (20) befestigt ist, dazu ausgelegt ist, dem wenigstens einen elektronischen Bauteil (200) zwischen dem Verbindungsabschnitt zur positiven Seite (21) und dem Verbindungsabschnitt zur negativen Seite (22) der Busschiene (20) zwischengeschaltet zu sein und es elektrisch zu verbinden, so dass das wenigstens eine elektronische Bauteil (200) mit einem Lichtstromkreis (24, 25, 50), der die wenigstens eine lichtemittierende Halbleitervorrichtung (50) umfasst, elektrisch parallel geschaltet ist.
  2. Fahrzeugleuchte nach Anspruch 1, wobei die zwischengeschaltete Einheit (100) umfasst:
    ein positives Anschlussstück (110), das aus einem leitenden Material besteht und dazu ausgelegt ist, mit dem Verbindungsabschnitt zur positiven Seite (21) elektrisch verbunden zu werden,
    ein negatives Anschlussstück (120), das aus einem leitenden Material besteht und dazu ausgelegt ist, mit dem Verbindungsabschnitt zur negativen Seite (22) elektrisch verbunden zu werden, und
    einen Halter (130), der aus einem elektrisch isolierenden Material besteht,
    wobei der Halter (130) das positive Anschlussstück (110) und das negative Anschlussstück (120) so hält, dass das positive Anschlussstück (110) und das negative Anschlussstück (120) voneinander elektrisch isoliert sind.
  3. Fahrzeugleuchte nach Anspruch 2, wobei sowohl das positive Anschlussstück (110) als auch das negative Anschlussstück (120) eine Klemmverbindung (112, 122) aufweisen, die dazu ausgelegt ist, angeklemmt zu werden, um das elektronische Bauteil (200) an der zwischengeschalteten Einheit (100) zu befestigen.
  4. Fahrzeugleuchte nach einem der Ansprüche 1 bis 3, ferner umfassend eine Basis (30), an der die Busschiene (20) angebracht ist,
    wobei der Verbindungsabschnitt zur positiven Seite (21) und der Verbindungsabschnitt zur negativen Seite (22) der Busschiene (20) teilweise von der Basis (30) hervorstehen, um einen Verbinder (29) zu bilden, und die zwischengeschaltete Einheit (100) dazu ausgelegt ist, auf den Verbinder (29) zu passen.
  5. Fahrzeugleuchte nach Anspruch 2 oder 3, wobei sowohl das positive Anschlussstück (110) als auch das negative Anschlussstück (120) einen Halteabschnitt (113, 123) aufweist, wobei die zwischengeschaltete Einheit (100) so an der Busschiene (20) befestigt ist, dass der Verbindungsabschnitt zur positiven Seite (21) zwischen dem Halteabschnitt (113) des positiven Anschlussstücks (110) und dem Halter (130) gehalten wird und dass der Verbindungsabschnitt zur negativen Seite (22) zwischen dem Halteabschnitt (123) des negativen Anschlussstücks (120) und dem Halter (130) gehalten wird.
  6. Fahrzeugleuchte nach Anspruch 5, wobei der Halter (130) einen Ausnehmungsabschnitt (135) aufweist, der einen Hohlraum zwischen den Halteabschnitten (113, 123) des positiven Anschlussstücks (110) und des negativen Anschlussstücks (120) bereitstellt.
EP09178327.4A 2008-12-08 2009-12-08 Stromversorgungsvorrichtung und Fahrzeuglampe Not-in-force EP2194309B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008311733A JP5303251B2 (ja) 2008-12-08 2008-12-08 給電部材および車両用灯具

Publications (3)

Publication Number Publication Date
EP2194309A2 EP2194309A2 (de) 2010-06-09
EP2194309A3 EP2194309A3 (de) 2012-04-18
EP2194309B1 true EP2194309B1 (de) 2016-04-27

Family

ID=41501590

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09178327.4A Not-in-force EP2194309B1 (de) 2008-12-08 2009-12-08 Stromversorgungsvorrichtung und Fahrzeuglampe

Country Status (2)

Country Link
EP (1) EP2194309B1 (de)
JP (1) JP5303251B2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6020007B2 (ja) * 2012-09-28 2016-11-02 岩崎電気株式会社 光源ユニット
CN110131685B (zh) * 2019-06-14 2020-10-27 海洋王（东莞）照明科技有限公司 灯具外壳以及灯具安装结构

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5404282A (en) * 1993-09-17 1995-04-04 Hewlett-Packard Company Multiple light emitting diode module
US5519596A (en) * 1995-05-16 1996-05-21 Hewlett-Packard Company Moldable nesting frame for light emitting diode array
JP2000058372A (ja) * 1998-08-04 2000-02-25 Toshiba Corp セラミックコンデンサ実装構造
US6386733B1 (en) * 1998-11-17 2002-05-14 Ichikoh Industries, Ltd. Light emitting diode mounting structure
JP3901404B2 (ja) 1999-08-27 2007-04-04 株式会社小糸製作所 車輌用灯具
US7380961B2 (en) * 2002-04-24 2008-06-03 Moriyama Sangyo Kabushiki Kaisha Light source coupler, illuminant device, patterned conductor, and method for manufacturing light source coupler
JP2005341643A (ja) * 2004-05-24 2005-12-08 Toshiba Corp 電力変換器のブスバー装置
JP4409380B2 (ja) * 2004-07-22 2010-02-03 本田技研工業株式会社 電子回路装置
EP2061991B1 (de) * 2006-09-12 2011-03-23 Paul Lo Integral geformter einteiliger leuchtdraht für eine lichtemissionsdiode

Also Published As

Publication number Publication date
EP2194309A2 (de) 2010-06-09
EP2194309A3 (de) 2012-04-18
JP5303251B2 (ja) 2013-10-02
JP2010135239A (ja) 2010-06-17

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