EP3712490A1 - Projektionsvorrichtung für einen kraftfahrzeugscheinwerfer - Google Patents

Projektionsvorrichtung für einen kraftfahrzeugscheinwerfer Download PDF

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Publication number
EP3712490A1
EP3712490A1 EP19164605.8A EP19164605A EP3712490A1 EP 3712490 A1 EP3712490 A1 EP 3712490A1 EP 19164605 A EP19164605 A EP 19164605A EP 3712490 A1 EP3712490 A1 EP 3712490A1
Authority
EP
European Patent Office
Prior art keywords
projection device
clamping
securing
base body
guide elements
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.)
Withdrawn
Application number
EP19164605.8A
Other languages
German (de)
English (en)
French (fr)
Inventor
Lukas Sieber
Clemens Hauer
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.)
ZKW Group GmbH
Original Assignee
ZKW Group GmbH
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 ZKW Group GmbH filed Critical ZKW Group GmbH
Priority to EP19164605.8A priority Critical patent/EP3712490A1/de
Priority to KR1020217029346A priority patent/KR102608032B1/ko
Priority to PCT/EP2020/053749 priority patent/WO2020193002A1/de
Priority to EP20707366.9A priority patent/EP3942225B1/de
Priority to US17/435,836 priority patent/US11614213B2/en
Priority to CN202080022208.7A priority patent/CN113544431B/zh
Priority to JP2021555014A priority patent/JP7241200B2/ja
Publication of EP3712490A1 publication Critical patent/EP3712490A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/47—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings

Definitions

  • the invention further relates to a motor vehicle headlight with at least one projection device according to the invention.
  • a screen element in a projection device or a lighting device of a motor vehicle headlight is used to form a shadowing of a light distribution that can be generated by a light source, for example to generate a cut-off line.
  • Such shading is used, for example, to avoid glare in oncoming traffic or, as a result, also becomes a corresponding legal requirement Light distribution realized. It is desirable here to arrange the panel element on the base body in such a way that it is fastened with as little play as possible. In particular, when the headlight vibrates when the vehicle is in operation, it must be avoided that the panel element in the arrangement on the base body can perform a vibratory movement or permanently change its position.
  • the position of the screen element in particular the horizontal alignment, is of decisive importance for the desired lighting functions.
  • the arrangement of the screen element on the base body should, if possible, be made possible without further connecting means in order to simplify the structural design of the light module.
  • the projection device comprises at least one clamping device which comprises a first and a second clamping element, the first clamping element being arranged on the screen element and the second clamping element being arranged on the base body, and the first clamping element being arranged on to engage the second clamping element, and wherein the at least one clamping device is set up to clamp the panel element in its end position on the base body.
  • the projection optics is designed as a projection lens.
  • the projection device comprises a mounting element and at least one securing device, which at least one securing device comprises a first and a second securing element, wherein the first securing element is set up to engage the second securing element, and wherein the at least one securing device is set up to secure the at least one clamping device against loosening of the engagement of the clamping elements, wherein the first securing element is arranged on the panel element and the second securing element is arranged on the mounting element.
  • a force in a certain direction is basically required, which must be applied, the securing device opposing and counteracting this direction of force.
  • the holding element of the projection optics is fastened to the base body opposite along the slide-on direction.
  • the guide elements of the panel element can be arranged on the panel element at a distance from one another orthogonally to the slide-on direction.
  • At least two, preferably precisely two, clamping devices are provided, a first clamping element being assigned to each guide element of the panel element.
  • first clamping element of the clamping devices is in each case arranged at a second end opposite the first end of the guide elements.
  • first clamping element is designed as a locking element, preferably as a locking lug
  • second clamping element is designed as a counter-locking element, preferably as an undercut or recess.
  • the second securing element of the holding element is designed as a pin protruding from the holding element in the direction of the push-on direction.
  • the at least one securing device is designed in such a way that the second securing element, in engagement with the first securing element, exerts a force on the first securing element transversely to the sliding direction.
  • the first clamping element of the at least one clamping device is designed as a one-piece, elastic spring tongue with the first securing element of the at least one securing device.
  • the spring tongue is connected in one piece to the at least one guide element of the panel element.
  • the screen element is arranged in an imaginary horizontal plane in the projection device.
  • the lighting device comprises at least one light source which is set up to emit light in a main emission direction.
  • the mounting element is designed as a cooling body which is assigned to the at least one light source and is set up to dissipate the heat generated by the at least one light source.
  • the object is also achieved with a motor vehicle headlight which comprises at least one projection device according to the invention.
  • the projection optics 50 can, as shown in the figures, be designed, for example, as a projection lens.
  • the aperture member 100 is disposed on the base body 200 along a mounting direction X by means of two guide elements 110 which orthogonally spaced apart from the mounting direction X from one another on the panel element, can be pushed onto the basic body 200, the guide members 110 arranged in on the base 200 to the guide elements 110 corresponding counter guide elements 210 engage.
  • the guide elements 110 of the panel element 100 each have an end stop 111 at a first end and the counter-guide elements 210, which in the example shown are designed as depressions or grooves on the base body 200 , each have a stop 211 , which stops 211 in combination with the end stops 111 of the guide elements 210 are set up to limit the displacement of the panel element 100 in the direction of the slide-on direction X towards an end position.
  • the screen element 100 In the end position of the screen element 100, the screen element 100 is arranged in an imaginary horizontal plane in the projection device 10 .
  • the terms “horizontal”, “vertical”, etc. relate to a properly installed state of the projection device, for example in a motor vehicle headlight.
  • Fig. 2 shows the projection device 10 from Fig. 1 , wherein the screen element 100 is in an abovementioned end position on the base body 200 .
  • the projection device 10 further comprises two clamping devices, each comprising a first and a second clamping element 120a, 220a , the first clamping element 120a being arranged on the screen element 100 and the second clamping element 220a being arranged on the base body 200 , and the first clamping element 120a being set up is to engage the second clamping element 220a , and wherein the at least one clamping device is set up to clamp the panel element 100 in its end position on the base body 200 .
  • the first clamping elements 120a of the panel element 100 are designed as latching lugs which each engage in the second clamping elements 220a, which are designed as depressions or undercuts on the base body 200 .
  • the projection device 10 shown comprises a mounting element 300 and two securing devices, each comprising a first and a second securing element 120b, 320b , the first securing element 120b being set up to engage the second securing element 320b , and the at least one securing device being set up, to secure the at least one clamping device against loosening of the engagement of the clamping elements 120a, 220a , the first securing element 120b being arranged on the panel element 100 and the second securing element 320b being arranged on the mounting element 300 , as in FIG Fig. 3 can be seen.
  • the support member 300 is in this case 50 mounted opposite the projection optical system along the mounting direction X of the base body 200, wherein the second securing member 320b of the support member 300 is formed as of the support member 300 protruding toward the mounting direction X pen.
  • the first clamping element 120a each having a clamping device is connected to the first securing member 120b each having a securing means of an integral resilient spring tongue formed, which spring tongue is arranged at the first end opposite the second end of a respective guide member 110 to the shutter member 100 and extending substantially counter to the mounting direction X extends, said first securing member 120b is formed as a tab, and wherein the second securing member 320b applies a force transverse to the mounting direction X to the first securing member 120b is engaged with the first fuse element 120b.
  • the first clamping element 120a and the latch is pushed into the recess 220a by the force exerted by the second securing member 320b force.
  • the force exerted by the second securing element 320b is opposite as a release force which would be necessary to release the engagement or the latching connection of the latching lug 120a and the recess 220a .
  • the projection device 10 comprises at least one or more light sources 30 which are set up to emit light in a main emission direction X1 , the slide-on direction X being parallel to the main emission direction X1 , for example in FIG Fig. 4 is shown.
  • the mounting element 300 is designed as a heat sink, which is assigned to the light sources 30 and is set up to dissipate the heat generated by the light sources 30 .
  • FIG. 8 shows an assembled state of the projection device 10 from FIG Fig. 4 .
  • LIST OF REFERENCES Projection device ... 10 Light source ... 30th Projection optics ... 50 Panel element ... 100 Guide element ... 110 End stops ... 111 First clamping element ... 120a first securing element ... 120b Basic body ... 200 Counter guide element ... 210 Attack... 211 second clamping element ... 220a Bracket element ... 300 Second securing element ... 320b Direction of opening ... X Main direction of radiation ... X1

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  • 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)
EP19164605.8A 2019-03-22 2019-03-22 Projektionsvorrichtung für einen kraftfahrzeugscheinwerfer Withdrawn EP3712490A1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP19164605.8A EP3712490A1 (de) 2019-03-22 2019-03-22 Projektionsvorrichtung für einen kraftfahrzeugscheinwerfer
KR1020217029346A KR102608032B1 (ko) 2019-03-22 2020-02-13 자동차 헤드램프용 투영 장치
PCT/EP2020/053749 WO2020193002A1 (de) 2019-03-22 2020-02-13 Projektionsvorrichtung für einen kraftfahrzeugscheinwerfer
EP20707366.9A EP3942225B1 (de) 2019-03-22 2020-02-13 Projektionsvorrichtung für einen kraftfahrzeugscheinwerfer
US17/435,836 US11614213B2 (en) 2019-03-22 2020-02-13 Projection assembly for a motor vehicle headlight
CN202080022208.7A CN113544431B (zh) 2019-03-22 2020-02-13 用于机动车前照灯的投射装置
JP2021555014A JP7241200B2 (ja) 2019-03-22 2020-02-13 自動車投光器用の投射装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19164605.8A EP3712490A1 (de) 2019-03-22 2019-03-22 Projektionsvorrichtung für einen kraftfahrzeugscheinwerfer

Publications (1)

Publication Number Publication Date
EP3712490A1 true EP3712490A1 (de) 2020-09-23

Family

ID=65904325

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19164605.8A Withdrawn EP3712490A1 (de) 2019-03-22 2019-03-22 Projektionsvorrichtung für einen kraftfahrzeugscheinwerfer
EP20707366.9A Active EP3942225B1 (de) 2019-03-22 2020-02-13 Projektionsvorrichtung für einen kraftfahrzeugscheinwerfer

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20707366.9A Active EP3942225B1 (de) 2019-03-22 2020-02-13 Projektionsvorrichtung für einen kraftfahrzeugscheinwerfer

Country Status (6)

Country Link
US (1) US11614213B2 (ko)
EP (2) EP3712490A1 (ko)
JP (1) JP7241200B2 (ko)
KR (1) KR102608032B1 (ko)
CN (1) CN113544431B (ko)
WO (1) WO2020193002A1 (ko)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006040839A (ja) * 2004-07-30 2006-02-09 Koito Mfg Co Ltd 投射型自動車用ヘッドランプ
EP1764549A1 (fr) * 2005-09-20 2007-03-21 Valeo Vision Projecteur pour véhicule automobile équipé d'un cache a multi-positions
AT504793A4 (de) * 2007-05-21 2008-08-15 Zizala Lichtsysteme Gmbh Blendenanordnung für eine lichteinheit bzw. einen scheinwerfer eines kraftfahrzeugs
EP2527726A2 (fr) * 2011-05-25 2012-11-28 AML Systems Barrette de coupure pour faisceau d'une source lumineuse
WO2015176340A1 (zh) * 2014-05-21 2015-11-26 天津方合科技发展有限公司 远近光一体双光源的透镜式汽车前照灯光学模组
EP3196542A1 (fr) * 2016-01-20 2017-07-26 AML Systems Mécanisme de coupure pour projecteur de véhicule automobile, à barrette de coupure amovible
EP3404314A1 (de) * 2017-05-18 2018-11-21 Automotive Lighting Reutlingen GmbH Lichtmodul eines kraftfahrzeugscheinwerfers und kraftfahrzeugscheinwerfer mit einem solchen lichtmodul

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5879065B2 (ja) 2011-07-29 2016-03-08 スタンレー電気株式会社 車両用前照灯
US8939627B2 (en) * 2011-07-29 2015-01-27 Stanley Electric Co., Ltd. Vehicle lighting unit
JP6195747B2 (ja) * 2012-10-22 2017-09-13 株式会社小糸製作所 灯具ユニット及び車両用灯具
US9400090B2 (en) * 2013-05-31 2016-07-26 Panasonic Intellectual Property Management Co., Ltd. Light source unit and vehicle front lamp using the light source unit
JP6537408B2 (ja) 2015-08-25 2019-07-03 スタンレー電気株式会社 車両用灯具
TWM537997U (zh) 2016-11-18 2017-03-11 Sun Yujing Tech Ltd 可提升照明強度的模組化透鏡車燈
JP6907550B2 (ja) 2017-01-20 2021-07-21 市光工業株式会社 車両用灯具

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006040839A (ja) * 2004-07-30 2006-02-09 Koito Mfg Co Ltd 投射型自動車用ヘッドランプ
EP1764549A1 (fr) * 2005-09-20 2007-03-21 Valeo Vision Projecteur pour véhicule automobile équipé d'un cache a multi-positions
AT504793A4 (de) * 2007-05-21 2008-08-15 Zizala Lichtsysteme Gmbh Blendenanordnung für eine lichteinheit bzw. einen scheinwerfer eines kraftfahrzeugs
EP2527726A2 (fr) * 2011-05-25 2012-11-28 AML Systems Barrette de coupure pour faisceau d'une source lumineuse
WO2015176340A1 (zh) * 2014-05-21 2015-11-26 天津方合科技发展有限公司 远近光一体双光源的透镜式汽车前照灯光学模组
EP3196542A1 (fr) * 2016-01-20 2017-07-26 AML Systems Mécanisme de coupure pour projecteur de véhicule automobile, à barrette de coupure amovible
EP3404314A1 (de) * 2017-05-18 2018-11-21 Automotive Lighting Reutlingen GmbH Lichtmodul eines kraftfahrzeugscheinwerfers und kraftfahrzeugscheinwerfer mit einem solchen lichtmodul

Also Published As

Publication number Publication date
EP3942225B1 (de) 2024-01-10
JP2022524550A (ja) 2022-05-06
KR102608032B1 (ko) 2023-11-30
JP7241200B2 (ja) 2023-03-16
US20220154904A1 (en) 2022-05-19
KR20210125078A (ko) 2021-10-15
CN113544431B (zh) 2023-11-17
EP3942225A1 (de) 2022-01-26
CN113544431A (zh) 2021-10-22
US11614213B2 (en) 2023-03-28
WO2020193002A1 (de) 2020-10-01

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