EP2942560A1 - Système de ventilation de feux de véhicule - Google Patents

Système de ventilation de feux de véhicule Download PDF

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Publication number
EP2942560A1
EP2942560A1 EP15165852.3A EP15165852A EP2942560A1 EP 2942560 A1 EP2942560 A1 EP 2942560A1 EP 15165852 A EP15165852 A EP 15165852A EP 2942560 A1 EP2942560 A1 EP 2942560A1
Authority
EP
European Patent Office
Prior art keywords
ventilation
housing opening
opening
housing
radial
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
EP15165852.3A
Other languages
German (de)
English (en)
Other versions
EP2942560B1 (fr
Inventor
Frank Hansmann
Jens Oliver Meyer
Michael Wysok
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.)
Hella GmbH and Co KGaA
AZ Ausruestung und Zubehoer GmbH and Co KG
Original Assignee
Hella KGaA Huek and Co
AZ Ausruestung und Zubehoer GmbH and Co KG
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 Hella KGaA Huek and Co, AZ Ausruestung und Zubehoer GmbH and Co KG filed Critical Hella KGaA Huek and Co
Publication of EP2942560A1 publication Critical patent/EP2942560A1/fr
Application granted granted Critical
Publication of EP2942560B1 publication Critical patent/EP2942560B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/30—Ventilation or drainage of lighting devices
    • 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
    • F21S45/30—Ventilation or drainage of lighting devices
    • F21S45/33—Ventilation or drainage of lighting devices specially adapted for headlamps
    • 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
    • F21S45/30—Ventilation or drainage of lighting devices
    • F21S45/37—Ventilation or drainage of lighting devices specially adapted for signal lamps
    • 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
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/03—Gas-tight or water-tight arrangements with provision for venting

Definitions

  • the ventilation system has a ventilation body, which is connected by latching with a housing opening of the lighting device.
  • the ventilation body has a plurality of latching fingers which engage behind the housing opening in the manner of a barb.
  • a middle area has the ventilation body axial openings, so that an air exchange between the interior of the housing and the environment is ensured.
  • the ventilation body is provided with a breathable membrane. The protection of the housing from the ingress of dust is limited, since no labyrinth-like ventilation channel is provided.
  • a ventilation system is provided with a labyrinth-like ventilation channel.
  • This forms in a consisting of three parts ventilation body, which has a consisting of an elastomeric venting element, a membrane and a cap.
  • the elastomeric ventilation element is hollow-cylindrical and has radial openings which are closed by the membrane.
  • the ventilation element is slipped with an open end face on a circumferentially closed and outwardly projecting opening wall of a housing opening and is almost completely surrounded in the locking position of the cap.
  • Both a frontal edge of the venting element and an edge of the cap are spaced from a wall of the housing adjacent to the aperture wall so that air may flow into an annular venting channel formed between the axial wall of the cap and a peripheral wall of the venting element ,
  • a first deflection of the ventilation channel is formed in the region of the axially extending diaphragm, wherein an air flow is deflected from the axial direction in the radial direction.
  • Within the ventilation element there is a further deflection in the region of an outer edge of the housing opening, wherein the air flow is deflected from the radial direction in the axial direction while passing through the housing opening.
  • a disadvantage of the known ventilation system is that a relatively poor haptic feedback on reaching the end position in the attachment of the ventilation element is given, so that incorrect installation is difficult to see.
  • Object of the present invention is therefore to develop a ventilation system such that a simple installation and a secure fixation is made possible, with a high degree of sealing and a variable use is guaranteed.
  • a ventilation body in which a perpendicular to an axial direction of the housing opening arranged membrane is integrated.
  • the ventilation body has on the one hand a reaching into the housing opening inner part and a circumferential direction around an opening wall the housing opening extending outer part, which ensure the same in the locking position for a sealing fixation and on the other a labyrinth-like ventilation duct.
  • a radial projection of the outer part of an end of the ventilation duct is specified on one side of the ventilation body.
  • shaping of the outer and inner part is a multiple deflection, so that another end of the ventilation duct adjacent to an axial ventilation section.
  • the preferably integrally formed ventilation element allows in addition to the sealing contact with the housing opening also a simple and variable fixation characterized in that it forms a rotary closure with the housing opening.
  • the fixation is effected by means of a relative rotation of the ventilation element or the ventilation body to the housing opening by a predetermined angle of rotation between a first rotational position in which the ventilation body is in a Seaarretierlage, and a second rotational position in which the ventilation body is in a locking position.
  • the locking means of such a rotary closure allows in particular a coding of different ventilation bodies, which ensures a secure mounting of a designated ventilation body at the same housing opening. In this way, incorrect installation of different ventilation systems can be reliably prevented.
  • the ventilation system according to the invention not only serves to ventilate the housing, but also immediately to a pressure equalization between the housing and the environment.
  • the ventilation system according to the invention is preferably used for vehicle lights, in particular headlamps, on the one hand to ensure ventilation of the headlight housing and on the other hand, protection against ingress of moisture into it.
  • the ventilation system according to the invention can also be used for ventilation and / or pressure equalization of other housings, for example. Control units, batteries and the like.
  • the ventilation body and the housing opening on locking elements, so that the ventilation body is held in the locking position positively and / or non-positively on the housing opening.
  • the locking elements may be formed so that the ventilation body is held by means of a bayonet lock on the housing opening in the locking position.
  • the free end of the inner part of the ventilation element and an edge of the housing opening is matched to one another such that only a predetermined type of ventilation body can be rotated into the locking position from a plurality of different types of ventilation bodies.
  • the inner part of the ventilation element and / or the edge of the housing opening thus have a coding which allows only the locking of one type of ventilation bodies.
  • the coding is due to the formation of the inner part and / or the housing opening, so that a coding due to a label is not required.
  • the inner part of the ventilation element has a cylindrical surface in the circumferential direction radial surface which bears sealingly in the locking position on an inner side of the cylindrical opening wall. In this way, in the locking position one in the circumferential direction ensures sealing contact of rigid parts of the ventilation element and the housing opening.
  • the housing opening has a running at a radial distance to the opening wall ring which protrudes in the axial direction and serves as a stop for arranged on the outer part of the vent element stop elements, so that except for the area of the radial projection, the outer part of Ventilation element sealingly abuts the ring of the housing opening.
  • the outer part is preferably designed to be flexible, so that a tolerance compensation can be made to the relatively rigid material of the housing opening.
  • the housing is made of a relatively rigid material
  • at least the outer part is made of a relatively flexible material.
  • the radial opening of the inner part of the ventilation element and the radial projection of the outer part of the ventilation element is arranged on a common side thereof, so that a defined first and second deflection of the ventilation channel is provided, on the same side of the ventilation body or in an axial plane are arranged.
  • the invention enables a labyrinth-like design of the ventilation channel, so that the membrane is protected from induced by aggressive media mechanical or chemical damage.
  • the housing opening has a arranged at a radial distance to the opening wall and the ring Montierrahmen with an arcuate portion and a lateral protrusion or recess, wherein the bulge or recess is adapted to the radial projection of the ventilation element, so that the ventilation body is rotatable only in an acute angle of rotation range in which the radial projection in the bulge and / or in the recess. Due to the bulge the approach or mounting position of the ventilation body is defined at the housing opening in the Brockarretierlage in a simple manner, which simplifies installation.
  • the mounting frame allows splash protection of the ventilation system in the locking position.
  • the mounting frame may be keyhole-shaped.
  • a ventilation system can be used, for example, for vehicle lighting.
  • the ventilation system can also be used for ventilation and / or pressure equalization of other housings, such as. Control units, batteries.
  • a lighting device for vehicles may be arranged in the bow or tail area of the vehicle.
  • the lighting device has a housing in which at least one light source and an optical unit associated therewith are arranged for generating a light beam.
  • a predetermined light distribution such as, for example, a low beam distribution or high beam distribution can be generated. That's from a rigid Material existing housing has in the main direction of radiation at the front of an opening, which is covered by a translucent lens.
  • a ventilation system for the mutual exchange of air between an interior of the housing and the environment is provided on a rear side of the housing, preferably on a vertical wall of the housing (housing wall 9).
  • the ventilation system is formed on the one hand by a molding of a housing opening 1 and on the other hand by forming a lockable to the housing opening 1 ventilation body 2.
  • the ventilation body 2 is formed in three parts in the present embodiment and has a ventilation element 3, a breathable membrane 4 and a preferably plate-shaped cap 5.
  • the venting element 3 has on a side facing away from the housing opening 1 end face a receiving opening 6, in which the membrane 4 is mounted.
  • the provided with barb-shaped ring elements 7 cap 5 engages in the receiving opening 6 of the venting element 3 and covers the membrane 4 to the outside.
  • the venting element 3 can be made of a different material than the housing or the housing opening 1.
  • the venting element 3 has an inner part 8, which in FIG one of the housing wall 9 projecting outwardly cylindrical opening wall 10 of the housing opening 1 protrudes. Like from the FIGS. 4 and 5 it can be seen, the inner part 8 of the ventilation element 3 protrudes into the housing up to a plane of the housing wall 9.
  • the ventilation element 3 has an outer part 11, which is integrally connected to the inner part 8 and extends substantially outside the opening wall 10 of the housing opening 1.
  • the outer part 11 has a circumferentially closed and widening in the direction of an open side wall 12, the free edge 13 sealingly abuts in a locking position of the ventilation body 2 to a ring 14 of the housing opening 1.
  • the ring 14 of the housing opening 1 is disposed at an axial distance to the opening wall 10 thereof; Thus, the ring 14 has a larger radius than the opening wall 10.
  • the ring 14 has in comparison to the opening wall 10 has a much smaller axial extent.
  • the ring 14 serves as a stop for the inner side of the wall 12 integrally formed stop elements 15 of the outer part 11, so that the edge 13 of the outer part 11 may sealingly abut the outside of the ring 14. This sealing engagement of the edge 13 of the outer part 11 on the ring 14 extends at an obtuse angle about an axis A of the housing opening 1.
  • a first deflection 41 of the ventilation duct 17 is thereby formed in the locking position of the ventilation body 2.
  • a second deflection 42 of the ventilation channel 17 is formed by a radial opening 19 of the inner part 8, the air passage between an axial portion 17 'of the ventilation channel 17 within the opening wall 10 and an axial portion outside the opening wall 10 connects.
  • an air exchange is ensured within the opening wall 10, the inner part 8 on a foot part 20 on two axial openings 21 which are arranged on both sides of a central extension part 22 of the inner part 8.
  • the ventilation body 2 is designed as a rotary member which is locked in a bayonet-like manner as a rotary closure with the housing opening 1.
  • the extension part 22 of the inner part 8 is barb-shaped at one end 23 with locking elements 24, 24 ', which cooperate with locking elements 25 of the housing opening 1, that by relative rotation of the ventilation body 2 in the direction of rotation D relative to the housing opening 1 of the ventilation body 2 of a Fisharretierlage in a first rotational position according to FIG. 2 in a locking position according to FIG. 3 can be brought.
  • opposite locking elements 24, 24 'of the extension part 22 are arranged opposite one another and projecting radially from the extension part 22.
  • the locking elements 25 of the housing opening 1 extend partially circular on a side facing away from the ventilation body 2 of the housing 9 at the edge of the opening wall 10, wherein the locking elements 25 each projecting in the axial direction arc section 25 'constant height and end a blocking portion 25 "with in comparison
  • the blocking portion 25 serveses as a stop for the locking element 24, 24 'of the inner part 8 and thus defines the locking position of the ventilation body 2.
  • the height of the curved portion 25' is dimensioned such that the ventilation body 2 is clamped or clamped is held axially fixed.
  • the arcuate portions 25 'of the oppositely disposed locking elements 25 extend in an acute angle range about the axis A.
  • the radius of the locking elements 25 substantially corresponds to the radius of the locking elements 24.
  • the housing opening 1 at a radial portion 26 has a radius which is equal to or slightly larger than the radius of the locking elements 24 of the inner part 8.
  • the end of the inner part 8 with the locking elements 24 in the locking position through the housing opening 1 can be inserted or engaged behind.
  • the edge portion 26 of the housing opening 1 the radius of which is equal to or greater than the radius of the locking elements 24, so matched to the shape of the locking elements 24, that only a predetermined type of ventilation bodies 2 in the Tinarretierlage inserted and then rotated into the locking position is.
  • the housing opening 1 has a narrow edge section 26 and a long edge section 26 'on opposite sides, which correspond to a narrow locking element 24 or a wide locking element 24'.
  • the ventilation body can be attached to this only in a certain rotational position to the housing opening 1. An attachment in a twisted by 180 ° arrangement would not be possible. In this way, for example, it can be prevented that a ventilation body without integrated membrane 5 can be locked to the housing opening 1. As a result, a coding of the ventilation system is ensured.
  • the ventilation body 2 is attached to the housing opening 1 in a first rotational position, wherein the locking elements 24, 24 'of the inner part 8 in the housing opening 1 engage so far that they behind the edge portion 26, 26', ie already inside the Housings are arranged.
  • the housing opening 1 has a mounting frame 28 which extends in a keyhole shape around the opening wall 10 and the ring 14.
  • the mounting frame 28 is formed protruding from the plane of the housing wall 9 and serves as a splash guard. It has in a region of a bulge 29, which has a larger radius than another arcuate portion 30 of the mounting frame 28, so that the ventilation element 3 can be attached with its radial projection 18 in a certain rotational position of the housing opening 1.
  • the bulge 29 has such a radial distance to the axis A, which is greater than a radial distance of the radial projection 18.
  • the arcuate portion 30 of the mounting frame 28 has a radius which is smaller than the radius of the radial projection 18.
  • a recess may be provided instead of a bulge. However, this reduces the splash protection effect.
  • a seal running in an obtuse angle region takes place between the ventilation body 2 and the housing opening 1 by abutment of the edge 13 of the outer part 11 on the ring 14 of the housing opening 1.
  • a further seal namely a 360 ° -Abdichtung by conditioning a cylindrical radial surface 33 of the inner part 8 on an inner side 34 of the opening wall 10.
  • the radial surface 33 in one of the membrane 4 end facing a paragraph, so that only one of the membrane 4 facing end portion of the foot portion 20 of the inner part 8 rests against the opening wall 10 and ensures a radial seal.
  • the seal thus extends only in an axial portion of the foot portion 20 of the inner part eighth
  • the ventilation channel 17 is formed, which has the two deflections.
  • FIG. 10 is shown schematically that, assuming that air 40 should flow from the outside into the housing, the first deflection 41 on the radial projection 18 of the outer part 11 takes place. From the formed between the radial projection 18 and the wall 12 of the housing opening 1 breakthrough, the air 40 flows between the wall of the outer part 11 and the opening wall 10 in the axial direction of the housing wall 9 of the housing opening 1 substantially until they the radial opening 19 of the êtteils 8 is achieved.
  • the second deflection 42 is radially offset, wherein a first flow arm 40 'through the disposed below the extension part 22 axial opening 21 and a second flow arm 40 "vertically above the extension part 22 disposed axial opening 21' in the direction of the extension plane of the wall 9 flows.
  • the ventilation body 2 serves for a ventilation of the housing and on the other to pressure equalization between the housing and the environment.
  • the housing is made of a rigid material
  • the ventilation body 2 or in particular the ventilation element 3 is made of such a flexible material, which is at least the outer part 11 flexibly attached to the housing opening 1 or can be applied. Due to the flexibility of the outer part 11, a tolerance compensation in the axial direction to the housing opening or to the housing can take place.
  • the wall of the outer part 11 forms a flexible sealing surface, which rests sealingly on an outer side of the ring 14 of the housing opening 1, so that the wall is non-positively connected in the radial direction with the outer side of the ring 14.
  • the invention enables a simple recognizability of the incorrect installation of the ventilation body 2 on the housing. Because in the case of incorrect assembly, there is either a radial offset and / or an axial offset. Advantageously, this results in an additional automatic query option or incorrect assembly verification during installation.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Jet Pumps And Other Pumps (AREA)
EP15165852.3A 2014-05-08 2015-04-30 Système de ventilation de feux de véhicule Active EP2942560B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014106501.8A DE102014106501A1 (de) 2014-05-08 2014-05-08 Belüftungssystem für Fahrzeugbeleuchtungen

Publications (2)

Publication Number Publication Date
EP2942560A1 true EP2942560A1 (fr) 2015-11-11
EP2942560B1 EP2942560B1 (fr) 2017-04-19

Family

ID=53040393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15165852.3A Active EP2942560B1 (fr) 2014-05-08 2015-04-30 Système de ventilation de feux de véhicule

Country Status (5)

Country Link
US (1) US9568161B2 (fr)
EP (1) EP2942560B1 (fr)
JP (1) JP6555923B2 (fr)
CN (1) CN105135393B (fr)
DE (1) DE102014106501A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3816501A1 (fr) * 2019-10-30 2021-05-05 Marelli Automotive Lighting Reutlingen (Germany) GmbH Module d'aération pour un dispositif d'éclairage d'un véhicule automobile

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7034581B2 (ja) * 2016-08-30 2022-03-14 日東電工株式会社 通気部材
US20190331312A1 (en) * 2018-04-25 2019-10-31 Jute Industrial Co., Ltd. Breathable element for lighting of vehicle
US20220287191A1 (en) * 2019-08-09 2022-09-08 Nitto Denko Corporation Ventilation structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4405974A (en) * 1981-02-06 1983-09-20 Harvey Hubbell Incorporated Filter assembly for luminaire
KR20030019286A (ko) * 2002-12-18 2003-03-06 최충원 자동차 램프케이스의 통기용 캡
JP2005349362A (ja) * 2004-06-14 2005-12-22 Nitto Denko Corp 通気部材の製造方法およびそれによって得られる通気部材ならびにそれを用いた筐体。
EP1997685B1 (fr) 2006-03-02 2010-04-21 Nitto Denko Corporation Element de ventilation et structure de ventilation
EP1363069B1 (fr) 2002-05-15 2011-02-23 Nitto Denko Corporation Dispositif de ventilation et boîtier l'utilisant
FR2966660A1 (fr) * 2010-10-25 2012-04-27 Valeo Systemes Dessuyage Bouchon d'etancheite pour sortie de ventilation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS636604U (fr) * 1986-06-28 1988-01-18
JP4367159B2 (ja) * 2004-02-06 2009-11-18 市光工業株式会社 車両用灯具
JP2013229103A (ja) * 2012-04-24 2013-11-07 Koito Mfg Co Ltd 通気構造を備える車両用ランプ
JP2014102970A (ja) * 2012-11-20 2014-06-05 Nitto Denko Corp 通気部材
JP6130183B2 (ja) * 2013-03-26 2017-05-17 日東電工株式会社 通気部材

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4405974A (en) * 1981-02-06 1983-09-20 Harvey Hubbell Incorporated Filter assembly for luminaire
EP1363069B1 (fr) 2002-05-15 2011-02-23 Nitto Denko Corporation Dispositif de ventilation et boîtier l'utilisant
KR20030019286A (ko) * 2002-12-18 2003-03-06 최충원 자동차 램프케이스의 통기용 캡
JP2005349362A (ja) * 2004-06-14 2005-12-22 Nitto Denko Corp 通気部材の製造方法およびそれによって得られる通気部材ならびにそれを用いた筐体。
EP1997685B1 (fr) 2006-03-02 2010-04-21 Nitto Denko Corporation Element de ventilation et structure de ventilation
FR2966660A1 (fr) * 2010-10-25 2012-04-27 Valeo Systemes Dessuyage Bouchon d'etancheite pour sortie de ventilation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3816501A1 (fr) * 2019-10-30 2021-05-05 Marelli Automotive Lighting Reutlingen (Germany) GmbH Module d'aération pour un dispositif d'éclairage d'un véhicule automobile

Also Published As

Publication number Publication date
US9568161B2 (en) 2017-02-14
JP6555923B2 (ja) 2019-08-07
CN105135393A (zh) 2015-12-09
EP2942560B1 (fr) 2017-04-19
DE102014106501A1 (de) 2015-11-12
CN105135393B (zh) 2019-04-12
JP2015216115A (ja) 2015-12-03
US20150323151A1 (en) 2015-11-12

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