EP2927890A3 - Signal transmitter for dispensing a light signal - Google Patents

Signal transmitter for dispensing a light signal Download PDF

Info

Publication number
EP2927890A3
EP2927890A3 EP15158840.7A EP15158840A EP2927890A3 EP 2927890 A3 EP2927890 A3 EP 2927890A3 EP 15158840 A EP15158840 A EP 15158840A EP 2927890 A3 EP2927890 A3 EP 2927890A3
Authority
EP
European Patent Office
Prior art keywords
fresnel lens
light
light source
signal
front opening
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.)
Granted
Application number
EP15158840.7A
Other languages
German (de)
French (fr)
Other versions
EP2927890A2 (en
EP2927890B1 (en
Inventor
Friedrich Fischer
Heiko Junker
Birger Langhammer
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP2927890A2 publication Critical patent/EP2927890A2/en
Publication of EP2927890A3 publication Critical patent/EP2927890A3/en
Application granted granted Critical
Publication of EP2927890B1 publication Critical patent/EP2927890B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/095—Traffic lights
    • 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
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/006—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate being distinct from the light source holder
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/504—Cooling arrangements characterised by the adaptation for cooling of specific components of refractors
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like
    • 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]

Abstract

Die Erfindung betrifft einen Signalgeber (1) zur Abgabe eines Lichtsignals für den Straßen- oder Schienenverkehr. Er umfassend ein topfförmiges Innengehäuse (5) mit einer Frontöffnung (6), in welchem eine Lichtquelle mit wenigstens einer Leuchtdiode (11) und eine Treiberbaugruppe (13) zur Energieversorgung der Lichtquelle angeordnet sind. Er umfasst ferner einen die Frontöffnung (6) verschließenden Optikaufsatz (7) zur Beeinflussung des von der Lichtquelle emittierten Lichtes, der eine innen liegende Fresnellinse (8) und eine außen liegende Streuscheibe (9) aufweist. Erfindungsgemäß weist die Fresnellinse (8) Luftkanäle (17) auf, die einen von Innengehäuse (5) und Fresnellinse (8) umschlossenen Innenraum (16) mit einem von Fresnellinse (8) und Streuscheibe (9) umschlossenen Zwischenraum (18) verbinden. Hierdurch wird bei einem erfindungsgemäßen Signalgeber (1) ein Luftstrom von erwärmter Luft aus dem Innenraum (16) in den Zwischenraum () ermöglicht, wodurch der Einsatz von kostspieligen Bauteilen mit erhöhten Betriebstemperaturen vermieden, aber trotzdem ein zuverlässiger Betrieb über eine große Lebensdauer erreicht wird.

Figure imgaf001
The invention relates to a signal generator (1) for emitting a light signal for road or rail traffic. It comprises a pot-shaped inner housing (5) with a front opening (6), in which a light source with at least one light emitting diode (11) and a driver assembly (13) are arranged for supplying power to the light source. It further comprises an optical attachment (7) closing off the front opening (6) for influencing the light emitted by the light source, which has an inner Fresnel lens (8) and an outer diffuser (9). According to the invention, the Fresnel lens (8) on air ducts (17) which connect one of the inner housing (5) and Fresnel lens (8) enclosed interior (16) with a Fresnel lens (8) and lens (9) enclosed gap (18). In this way, in a signal generator (1) according to the invention, an air flow of heated air from the interior space (16) into the intermediate space () is possible, whereby the use of costly components with increased operating temperatures is avoided, but nevertheless reliable operation over a long service life is achieved.
Figure imgaf001
EP15158840.7A 2014-03-24 2015-03-12 Signal transmitter for dispensing a light signal Active EP2927890B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014205453.2A DE102014205453A1 (en) 2014-03-24 2014-03-24 Signaling device for emitting a light signal

Publications (3)

Publication Number Publication Date
EP2927890A2 EP2927890A2 (en) 2015-10-07
EP2927890A3 true EP2927890A3 (en) 2016-04-06
EP2927890B1 EP2927890B1 (en) 2017-08-16

Family

ID=52686154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15158840.7A Active EP2927890B1 (en) 2014-03-24 2015-03-12 Signal transmitter for dispensing a light signal

Country Status (4)

Country Link
EP (1) EP2927890B1 (en)
DE (1) DE102014205453A1 (en)
ES (1) ES2648092T3 (en)
PT (1) PT2927890T (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105909989B (en) * 2016-06-17 2022-02-01 上海策元实业有限公司 Cut dull and stereotyped lamp of light formula LED
DE102021211015A1 (en) 2021-09-30 2023-03-30 Siemens Mobility GmbH Signal generator for emitting a light signal

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998031966A1 (en) * 1997-01-21 1998-07-23 Gore Enterprise Holdings, Inc. System for reducing condensation in enclosed lamp housings
AT409805B (en) * 1999-12-09 2002-11-25 Swarco Futurit Verkehrssignals LEDS-SIGNAL OPTICS
DE202006014987U1 (en) * 2006-09-29 2006-12-14 Siemens Ag Traffic light control signals have individual signalling light modules built into front panel hinged unit doors
US8123381B1 (en) * 2007-09-07 2012-02-28 J&J Electronics, Inc. LED lighting systems and methods useable for replacement of underwater niche lights and other applications
DE102011052577A1 (en) * 2011-08-11 2013-02-14 Hella Kgaa Hueck & Co. Light module for an outdoor light

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7490954B2 (en) * 2004-07-30 2009-02-17 Lumination Llc LED traffic signal
DE102007034373B4 (en) * 2007-07-24 2009-05-14 Dialight Garufo Gmbh signal light

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998031966A1 (en) * 1997-01-21 1998-07-23 Gore Enterprise Holdings, Inc. System for reducing condensation in enclosed lamp housings
AT409805B (en) * 1999-12-09 2002-11-25 Swarco Futurit Verkehrssignals LEDS-SIGNAL OPTICS
DE202006014987U1 (en) * 2006-09-29 2006-12-14 Siemens Ag Traffic light control signals have individual signalling light modules built into front panel hinged unit doors
US8123381B1 (en) * 2007-09-07 2012-02-28 J&J Electronics, Inc. LED lighting systems and methods useable for replacement of underwater niche lights and other applications
DE102011052577A1 (en) * 2011-08-11 2013-02-14 Hella Kgaa Hueck & Co. Light module for an outdoor light

Also Published As

Publication number Publication date
EP2927890A2 (en) 2015-10-07
DE102014205453A1 (en) 2015-09-24
EP2927890B1 (en) 2017-08-16
PT2927890T (en) 2017-11-08
ES2648092T3 (en) 2017-12-28

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