EP2942562A2 - Système de ventilation de feux de véhicule - Google Patents

Système de ventilation de feux de véhicule Download PDF

Info

Publication number
EP2942562A2
EP2942562A2 EP15165860.6A EP15165860A EP2942562A2 EP 2942562 A2 EP2942562 A2 EP 2942562A2 EP 15165860 A EP15165860 A EP 15165860A EP 2942562 A2 EP2942562 A2 EP 2942562A2
Authority
EP
European Patent Office
Prior art keywords
ventilation
opening
housing opening
wall
housing
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
EP15165860.6A
Other languages
German (de)
English (en)
Other versions
EP2942562A3 (fr
EP2942562B1 (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 EP2942562A2 publication Critical patent/EP2942562A2/fr
Publication of EP2942562A3 publication Critical patent/EP2942562A3/fr
Application granted granted Critical
Publication of EP2942562B1 publication Critical patent/EP2942562B1/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
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • 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
    • 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
    • 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
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • 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
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/20—Direction indicator lights
    • 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
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

Definitions

  • a ventilation system for vehicle lights is known in which the ventilation system is provided at a rear side of a housing. At the housing opening of the housing a plurality of outwardly projecting walls of different height are provided, on which a cap-shaped ventilation body can be placed. A labyrinth-like ventilation channel is formed. The cap-shaped ventilation body is latchingly connected to walls of the housing opening, wherein the cap-shaped ventilation body to obtain the fixing position in the axial direction is placed on the walls of the housing opening.
  • a ventilation system for vehicle lighting with a housing in which a cap-shaped ventilation body is placed in the axial direction on a housing opening and latched with this fixed.
  • the ventilation body and the housing opening have walls, so that a ventilation channel with a plurality of deflections between an edge of the ventilation body and an opening of the housing opening is formed.
  • the fixation of the ventilation body by means of a locking element which engages in the opening of the housing opening.
  • the fixation is effected by axial snap-locking of the locking element in the opening of the housing opening, wherein barb-shaped ends of the locking element engage behind a wall of the housing.
  • Object of the present invention is to develop a ventilation system such that a simple installation and a secure fixation is made possible, which ensures a high degree of sealing and variable use.
  • a ventilation body on the one hand in the housing opening projecting inner part and on the other an opening wall of the housing opening surrounding the outer part, which take over the housing opening sealing function with their walls.
  • the ventilation body is designed as a rotary closure, so that the fixation takes place by rotation of the ventilation body relative to the housing opening about an axis thereof.
  • the opening wall of the housing opening is formed in two stages.
  • a breakthrough of the housing opening is limited by a high opening wall whose free edge forms a relatively large distance from a housing wall running perpendicular to the axis of the housing opening.
  • a low opening wall is provided at a radial distance from the high opening wall, whose free edge has a relatively small distance from the housing wall.
  • the high opening wall essentially serves to rest the inner part on an inner side thereof.
  • the high opening wall locking elements for fixing the inner part in the locking position on the housing opening.
  • the low opening wall serves to seal the system of the outer part.
  • the low opening wall has a recess in regions, a passage for one end of the ventilation duct can be formed there, with a first deflection of the ventilation duct.
  • the low opening wall and the outer part allow an arcuate course of the ventilation duct, wherein the ventilation duct is divided at the recess of the opening wall into two arcuate ventilation duct sections.
  • the inner part or the high opening wall is thereby flowed around in the circumferential direction, until on an opposite side of the recess to the recess, an axial ventilation duct section is reached, which extends between the high opening wall and the inner part.
  • a second deflection of the ventilation duct is provided.
  • a labyrinth-like ventilation channel is thereby formed, wherein at the same time the ventilation body is sealingly fixed to the housing opening.
  • the inner part of the ventilation body and the high opening wall on a rear locking elements which allows a positive and / or non-positive locking of the ventilation body to the housing wall by rotation of the ventilation body about an axis of the housing opening.
  • this ensures a secure bayonet-like fixation, wherein the ventilation body occupies a defined mounting position in the locking position to the housing opening.
  • the locking element of the inner part of the ventilation body is radially projecting, so that it engages in the locking position an arc portion of the arranged at the back of the high opening wall locking element detent. In this way, an axial holding force can be exercised, which holds the ventilation body sealing and positionally secure in the locking position.
  • a bottom-side edge of the high opening wall is contoured such that only one type of aeration bodies of a plurality of different types of ventilation bodies can be brought into the locking position.
  • a "hard coding" is created which allows compatibility of the housing opening also, for example, to each provided with a membrane ventilation bodies.
  • the ventilation body has a corresponding to the recess of the low opening wall radial projection on the outer part of the ventilation body.
  • one end of the ventilation duct is defined on one side of the ventilation body, wherein this end is preferably arranged in a vertically lower region of the ventilation system.
  • the unwanted ingress of liquids into the housing can be avoided in this way.
  • the inner part has a foot section, which is arranged only on one of the radial projection facing half side.
  • a radial surface of the foot section serves as a contact surface on an inner side of the high opening wall.
  • the inner part On one side facing away from the radial projection, the inner part has a recess or a deflection web, so that an axial section of the ventilation channel is formed, which extends from the free edge of the opening wall to a bottom plane of the opening wall.
  • the inner part is formed flattened in an adjoining the foot portion extension section, the axial portion of the ventilation channel can form in the locking position of the ventilation body.
  • the housing opening has a mounting frame arranged at a radial distance from the high opening wall and the low opening wall, the radius of which is greater only in a rotation angle range of the ventilation body than a radius of the radial projection of the ventilation body.
  • a defined insertion position of the ventilation body is defined in the non-locking position or the rotation of the ventilation body from the Tinarretierlage in the locking position and vice versa.
  • the assembly can be facilitated thereby.
  • the mounting frame allows splash protection of the ventilation system.
  • An inventive ventilation system can be used for vehicle lights, especially headlights.
  • the ventilation system can also be used for the ventilation and / or pressure equalization of other housings, for example. 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 a high beam distribution can be generated.
  • the housing which consists of a rigid material, has an opening in the main emission direction at the front, which is covered by a translucent cover disk.
  • 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 housing wall 5 of the housing.
  • the ventilation system is formed on the one hand by a shape of a housing opening 1 of the housing 5 and on the other hand by forming a lockable to the housing opening 1 ventilation body 2.
  • housing opening 1 the region of the housing wall 5 is referred to, in which an opening is provided.
  • the ventilation body 2 is integrally formed as an injection-molded part, which preferably consists of the same rigid material as the housing or the housing opening 1 integrally formed on the housing.
  • the housing opening 1 has a high opening wall 3, which is cylindrical and has a circular free edge 4, which is arranged at a relatively large distance from the housing wall 5.
  • the high opening wall 3 has on a bottom edge 6, which is arranged cranked in the housing wall 5, annular locking elements 7, by means of which the ventilation body 2 can be positively and / or non-positively fixed to the housing opening 1.
  • the locking elements 7 extend coaxially to an axis A of the high opening wall 3 and the housing opening 1.
  • the locking elements 7 extend in a bottom plane B of the housing opening 1, which is perpendicular to the axis A thereof.
  • the low opening wall 8 preferably has a recess 10 in a vertically lower area, the edge 9 'of which has a smaller axial distance from the housing wall 5 than the remaining edge 9 of the low opening wall 8.
  • the low opening wall 8 is coaxial with the high opening wall 3 arranged.
  • the recess 10 extends in an acute angle range about the axis A, preferably in an angular range of 20 ° to 30 °.
  • the ventilation body 2 consists of an engaging in the high opening wall 3 inner part 11 and outside the high opening wall
  • the outer part 12 surrounds the high opening wall 3 and the low opening wall eighth
  • the ventilation body 2 forms with the housing opening 1 a rotary closure, wherein the ventilation body 2 according to axial attachment to the housing opening 1 according to FIG. 2 from a brinarretierlage by rotation in the direction of rotation D (clockwise) about the axis A in an in FIG. 3 shown locking position can be brought, in which the ventilation body 2 is fixed to the housing opening 1.
  • the angle of rotation by which the ventilation body 2 is rotated relative to the housing opening 1 from the non-locking position into the locking position and vice versa is 90 ° in the present exemplary embodiment.
  • the angle of rotation may also be smaller or larger provided that the inner part 11 of the ventilation body 2 and the housing opening 1 are contoured accordingly.
  • the inner part 11 has a foot portion 13 which is integrally connected to the outer part 12.
  • the foot section 13 is adjoined by a flattened extension section 14, which is provided at a free end with locking elements 15, 15 'for the detachable fastening of the ventilation body 2 to the housing opening 1.
  • the outer part 12 has a circumferentially closed wall 16, which extends at a radial distance to the foot portion 13 and extension portion 14 of the inner part 11.
  • the outer part 12 is formed kelchförmig, at the inner bottom of the inner part 11 protrudes like a web, wherein the free end of the locking elements 15, 15 'extends beyond a plane formed by a free edge 17 of the outer part 12 extension plane.
  • the locking elements 15, 15 of the inner part 11 are arranged on opposite sides of the extension portion 14 and point to the coding the ventilation body 2 a different width, so that the ventilation body 2 only in a single rotational position, s. FIG. 7 , with the locking elements 15, 15 'can pass through the ground plane B of the high opening wall 3.
  • the high opening wall 3 has at the bottom edge 6 corresponding notches 18, 18 'of different width to correspond to the width of the locking elements 15 and 15', so that in the non-locking position only this type of ventilation bodies on or can pass.
  • the contouring of the incisions 18, 18 'and the locking elements 15, 15' thus enable a coding of the ventilation system, which ensures that only the predetermined ventilation body 2 can be locked with an open ventilation duct.
  • a ventilation body of a different type, for example with an integrated membrane, would, for example, have complementary locking elements which are prevented by providing a predetermined mounting frame 30 due to further measures, namely the specification of a defined insertion position in the non-locking position.
  • the locking elements 7 of the high opening wall 3 are formed by a bottom arcuate portion 7 'extending along an acute angle about the axis A and by a blocking portion 7 "located at one end of the arcuate portion 7.
  • the arcuate portion 7' faces the same radius as the locking elements 15, 15 ', so that upon rotation of the ventilation body 2 relative to the housing opening 1, the locking elements 15, 15' engage behind the respective arc sections 7 'and thus produce an axial holding force between the housing opening 1 and the ventilation body 2. Further rotation of the ventilation body 2 is prevented by striking the locking elements 12 to the blocking portion 7 ".
  • the blocking section 7 has, relative to the ground plane B, a greater grandeur or axial spacing than the arc sections 7 ', so that the axial surface of the blocking section 7" serves as a stop for the locking elements 15, 15' on the opposite sides.
  • the outer part 12 of the ventilation body 2 has a radial projection 19 whose wall in the mounting position of the ventilation body 2 in such a large radial distance to the low opening wall 8, that an opening 20 is formed to form one end of the ventilation channel.
  • the other areas of the wall 16 of the outer part 12 are on the outside of the low opening wall 8 and thus allow a seal between the ventilation body 2 and the housing opening 1.
  • the breakthrough 20 is formed due to the radial distance between an edge of the projection 19 and the low opening wall 8.
  • the ventilation body 2 assumes a defined axial position, the outer part 12 distributed circumferentially arranged stop elements 21 which come to a free edge of the low opening wall 8 to rest.
  • the foot section 13 of the inner part 11 is arranged on a half side facing the projection 19, two arcuate ventilation channel sections 22 are formed, which extend between a first deflection 23 in the region of the opening 20 and a median plane M of the extension section 14.
  • the inner part 11 On a side facing away from the projection 19, the inner part 11 has a release 24 or a deflection web 25, so that an axial ventilation channel section 26 can connect to the two arcuate ventilation channel sections 22, see arrow in FIG FIG. 5 , which represents the course of the ventilation duct.
  • a second deflection 27 of the ventilation duct takes place.
  • the axial ventilation channel section 26 extends between the second deflection 27 and the ground plane B of the high opening wall 3, wherein the extension section 14 and on a to the projection 19 side facing away portions of the high opening wall 3 limit this axial ventilation duct section 26. In the locking position can thus form a continuous ventilation duct between a lower edge in the vertical direction of the outer part 12 of the ventilation body 2 and an upper opening half of the high opening wall 3 in the vertical direction.
  • the foot portion 13 which has a semicircular radial surface 28, sealingly against an inner side 29 of the high opening wall 3 at.
  • a sealing of the ventilation body 2 to the housing opening 1 in the locking position thus takes place in a vertically lower area by sealing contact of the inner part 11 on the high opening wall 3 on the one hand and in a vertical upper area by conditioning the edge 17 of the outer part 12 at the low opening wall eighth
  • the sealing contact of the edge 17 of the outer part 12 preferably encloses an obtuse angle, in particular an angle between 270 ° and 330 ° about the axis A.
  • the sealing contact of the foot portion 13 of the inner part 11 at the opening wall 3 preferably encloses a blunt or obtuse angle or 180 ° about the axis A. In this way, a comprehensive seal is guaranteed.
  • the wall 16 of the outer part 12 is flexible, so that a tolerance compensation to the housing wall 5 can take place. A seal can thus be saved.
  • the wall 16 of the outer part 12 forms a flexible sealing surface, which rests sealingly on an outer side of the low opening wall 8, so that the wall 16 is non-positively connected in the radial direction with the low opening wall 8.
  • the mounting frame 30 is provided with a bulge 31.
  • the bulge 31 has a radius R1, which is greater than a radius of the radial projection 19.
  • An adjoining the bulge 31 arcuate portion 32 of the mounting frame 30 has a radius R2, which is smaller than the radius of the projection 19.
  • the ventilation body 2 can be placed axially in the Seaarretierlage under orientation of the radial projection 19 to the bulge 31.
  • the radial projection 19 is oriented vertically in the downward direction, so that the one end of the ventilation channel is directed in the vertical direction downwards.
  • the ventilation body 2 may be formed of a same or different material to the housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Jet Pumps And Other Pumps (AREA)
EP15165860.6A 2014-05-08 2015-04-30 Système de ventilation de feux de véhicule Active EP2942562B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014106502.6A DE102014106502A1 (de) 2014-05-08 2014-05-08 Belüftungssystem für Fahrzeugbeleuchtungen

Publications (3)

Publication Number Publication Date
EP2942562A2 true EP2942562A2 (fr) 2015-11-11
EP2942562A3 EP2942562A3 (fr) 2015-12-02
EP2942562B1 EP2942562B1 (fr) 2017-06-07

Family

ID=53039311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15165860.6A Active EP2942562B1 (fr) 2014-05-08 2015-04-30 Système de ventilation de feux de véhicule

Country Status (5)

Country Link
US (1) US9618176B2 (fr)
EP (1) EP2942562B1 (fr)
JP (1) JP6543081B2 (fr)
CN (1) CN105090856B (fr)
DE (1) DE102014106502A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020112963B3 (de) 2020-05-13 2021-10-07 HELLA GmbH & Co. KGaA Lüftersystem für einen Scheinwerfer eines Kraftfahrzeugs, Scheinwerfer und Kraftfahrzeug

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1205706A2 (fr) 2000-11-07 2002-05-15 Hella KG Hueck & Co. Système de ventilation pour une lampe, notamment pour projecteurs de véhicules
EP0764811B1 (fr) 1995-09-19 2002-11-06 Valeo Vision Appareil d'éclairage ou de signalisation de véhicule pourvu de moyens de ventilation perfectionnés

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2232465B3 (fr) * 1973-06-07 1976-03-12 Bosch Gmbh Robert
JPS6228010Y2 (fr) * 1980-12-20 1987-07-18
IT219095Z2 (it) * 1989-11-03 1992-12-01 Carello Spa Proiettore per veicoli, in particolare autoveicoli
JP3195273B2 (ja) * 1997-06-06 2001-08-06 株式会社小糸製作所 車輌用灯具
JP4425067B2 (ja) * 2004-06-14 2010-03-03 日東電工株式会社 通気部材の製造方法
JP2007059200A (ja) * 2005-08-24 2007-03-08 Sumitomo Wiring Syst Ltd 通気部材の取付け構造
US8517574B2 (en) * 2010-04-30 2013-08-27 Sunonwealth Electric Machine Industry Co., Ltd. Lamp with air channel
FR2987427B1 (fr) * 2012-01-27 2015-03-20 Valeo Illuminacion Ventilation d'un boitier de dispositif d'eclairage ou de signalisation d'un vehicule
ITMI20120654A1 (it) * 2012-04-19 2013-10-20 Gvs Spa Elemento di ventilazione di un involucro contenente un organo elettrico, meccanico o elettromeccanico
CN203322799U (zh) * 2013-06-08 2013-12-04 东莞勤上光电股份有限公司 一种led筒灯

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0764811B1 (fr) 1995-09-19 2002-11-06 Valeo Vision Appareil d'éclairage ou de signalisation de véhicule pourvu de moyens de ventilation perfectionnés
EP1205706A2 (fr) 2000-11-07 2002-05-15 Hella KG Hueck & Co. Système de ventilation pour une lampe, notamment pour projecteurs de véhicules

Also Published As

Publication number Publication date
JP2015216116A (ja) 2015-12-03
CN105090856A (zh) 2015-11-25
US20150323150A1 (en) 2015-11-12
DE102014106502A1 (de) 2015-11-12
JP6543081B2 (ja) 2019-07-10
EP2942562A3 (fr) 2015-12-02
EP2942562B1 (fr) 2017-06-07
CN105090856B (zh) 2019-06-25
US9618176B2 (en) 2017-04-11

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