SI24505A - a lamp of a motor vehicle with an improved outlet drawing heat - Google Patents

a lamp of a motor vehicle with an improved outlet drawing heat Download PDF

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Publication number
SI24505A
SI24505A SI201300342A SI201300342A SI24505A SI 24505 A SI24505 A SI 24505A SI 201300342 A SI201300342 A SI 201300342A SI 201300342 A SI201300342 A SI 201300342A SI 24505 A SI24505 A SI 24505A
Authority
SI
Slovenia
Prior art keywords
housing
heat exchanger
lamp
light source
heat
Prior art date
Application number
SI201300342A
Other languages
Slovenian (sl)
Inventor
Andrej Wagner
Jernej Slanovec
Sven BoĹľiÄŤ
Matej PavliÄŤ
TomaĹľ JurejevÄŤiÄŤ
Original Assignee
Hella Saturnus Slovenija, Proizvodnja Svetlobne Opreme Za Motorna In Druga Vozila, D.O.O.
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 Saturnus Slovenija, Proizvodnja Svetlobne Opreme Za Motorna In Druga Vozila, D.O.O. filed Critical Hella Saturnus Slovenija, Proizvodnja Svetlobne Opreme Za Motorna In Druga Vozila, D.O.O.
Priority to SI201300342A priority Critical patent/SI24505A/en
Publication of SI24505A publication Critical patent/SI24505A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40Cooling of lighting devices
    • F21S45/47Passive cooling, e.g. using fins, thermal conductive elements or openings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141Light emitting diodes [LED]
    • F21S41/147Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40Cooling of lighting devices
    • F21S45/47Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F21S45/48Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/50Waterproofing

Abstract

For the purpose of the front fog lamp, fog light or other motor vehicle light efficiently drain the heat generated by the light source (2) from the housing (1) generated inside the lamp housing (1), the lamp is equipped with a heat sink (4), which consists of of an internal heat exchanger (41) consisting of a heat-conducting material and arranged inside the housing (1), and an external heat exchanger (42) consisting of a heat-conducting material and arranged outside the housing (1). Said heat exchangers (41, 42) are interconnected in the region of the door-shaped aperture (12) in the housing (1), which is otherwise adapted to receive the filament lamp as a light source (2) and optionally a reflector (2) , and are connected in such a way that an effective heat transfer is possible from at least the internal heat exchanger (41) to the external heat exchanger (42).

Description

HELLA SATURNUS SLOVENIA Manufacture of lighting and other equipment for motor vehicles d.o.o. MPK8: B 60 Q 1/20

Light motor vehicle with improved heat exchanger

The invention belongs to the field of transport, in particular to the lighting equipment for vehicles, namely the lamps for motor vehicles, to the fog lamps where a series of LEDs, such as Light Emitting Diode, is used as a light source.

The invention is based on the problem of how, in the case of a fog lamp, fog lamps or other light for motor vehicles, effectively discharge the heat generated by the interior of the lamp housing and for the co-operation of the reflector with the reflector in the housing, the light source is disposed out of said housing, with the same possibility, in the interior of said housing, as for the co-operation with the reflector, a light source is fitted either with a conventional filament lamp, e.g. a halogen light bulb, or light emitting diode (LED) including an associated electronic circuitry. In the state of the art, there are known lamps with a light source which, in addition to the respective reflector, is mounted inside the housing in which a metallic heat sink is installed, which 2

partly extends into the housing and partly protrudes outside the housing. The heat sink can be designed as a sheet metal, and the efficiency of heat dissipation from the lamp housing by such a heat sink is hardly noticeable.

The lamp, as described in EP 2 291 594 BI, comprises a housing in which a light source generated by the LED, including the associated electronic circuitry, is installed. The light source is installed on a thermally conductive cooling element, the back wall of which is intended to be connected to an external refrigerator, namely outside the housing arranged in the heat sink. It is a relatively simple lens and non-reflector luminaire, with specially designed housing, which is used for the installation of LEDs, but not for the alternative possibility of installing a classical filament lamp.

The invention relates to a motor vehicle luminaire with an improved heat exchanger, comprising - a housing preferably consisting of a thermoplastic polymeric material and which is closed on the front by a light permeable wall, and on the rear is a door shaped opening in the region of which the interior of the housing with the help of a seal sealed against the intrusion of moisture and impurities inside the housing; - a light source which is mounted inside the housing and represents one or more LEDs; . at least one reflector which, like the said light source, is arranged inside the housing and adapted to divert the light beams generated by the light source through said wall into the area in front of the light; as well as at least one heat sink, intended to discharge heat from the inside of the lamp housing into an area outside the lamp housing.

According to the invention, it is assumed that said heat sink consists of an internal heat exchanger consisting of a heat-conducting material and is arranged inside the housing and an outer heat exchanger consisting of a heat-conducting material and is arranged outside the housing, said heat exchanger being interconnected in the 3th area as a tubular door designed and optionally to receive a filament lamp as a light source of an apertured opening in the housing and with the possibility of effective heat transfer from at least an internal heat exchanger to an external heat exchanger.

The inner heat exchanger and the outer heat exchanger are interchangeably connected in the area of said door-shaped aperture at the rear of the lamp housing, but in such a way that they closely enclose one another in the connected state and effective heat transfer is provided between them.

The internal heat exchanger can be located in the upper housing area.

At least one anti-reflector-directed light source may be arranged in the area of the internal heat exchanger.

The light source can be arranged in a heat-conducting contact with an internal heat exchanger.

The light source can be arranged under an internal heat exchanger.

At least one anti-reflector-directed light source can be arranged above the reflector.

The invention will now be described in more detail with the example embodiment schematically illustrated in the accompanying drawing (Figure 1)

Na Sl. 1 is an illustrated lamp of a motor vehicle comprising a housing 1 which is closed on the front by a light permeable wall 11 and on the rear side is provided with a door-shaped opening 12 which is in principle adapted to receive the lamp filament lamp in function light source 2, optionally coupled with the respective reflector 3. 4 · ·

By choice, it is the same as in Fig. 1 in the interior of the same housing 1, one light source 2 is represented by a LED light generator or a series of LEDs, and at the same time there is at least one reflector 3 in the interior of the housing 1 which is adapted to divert the light rays through said front wall 11 .

The housing 1 preferably consists of a thermoplastic polymeric material and is sealed against the ingress of moisture and impurities inside the housing 1 by means of a seal 5 in the region of said aperture 12.

In addition, said housing 1 is provided with a heat sink 4, which is provided for discharging the heat generated by the light source 2 from the interior of the lamp housing 1 in the area outside the lamp housing 1.

According to the invention, in order to improve the efficiency of the heat exchanger from the interior of the lamp housing 1 to the surroundings of the lamp, it is provided that said heat sink 4 consists of an internal heat exchanger 41 consisting of a heat-conducting material and arranged inside the housing 1 and an outer heat exchanger 42, which consists of a heat-conducting material and is disposed outside the housing 1. Said heat exchangers 41, 42 are interconnected in the region of said aperture 12 and with the possibility of effective heat transfer, at least from the internal heat exchanger 41 to the external heat exchanger 42.

In a preferred embodiment of the invention, the internal heat exchanger 41 and the outer heat exchanger 62 are inter alia e.g. with the aid of the screw 44, can be disjointly connected in the area of said door as formed by the aperture 12 at the rear of the lamp housing 1 as mentioned for the installation of the light source 2 when provided as a filament lamp optionally coupled with a reflector 3, and through the said opening 12, for example, due to maintenance and / or repair, access to the interior of the housing 1 is enabled. However, said heat exchangers 41, 42 are in each case connected to each other by 5

such that they are in close contact between each other and an efficient heat transfer is provided between them.

In a further embodiment of the invention, the internal heat exchanger 41 is arranged in the upper region of the housing 1, where the temperature is generally higher. In particular, it is preferred that if at least one anti-reflector 3 directed light source 2 is disposed within the region of the internal heat exchanger 41, and in particular when the light source 2 is arranged in a thermal conductive contact with said internal heat exchanger 41, preferably under an internal heat exchanger 41. In the example illustrated in FIG. 1, at least one directed light source 2 is arranged above the reflector 3. In this case, the light beams from the light source 2 travel downward towards the reflector 3, where they are directed through the front wall 11 of the housing 1 into the area in front of the lamp.

The heat generated by the light source 2 is collected in an internal heat exchanger 41 from which it is transferred through the opening 12 of the housing 1 to the external heat exchanger 42, from which it moves to the ambient air.

It will be appreciated by the skilled person that each of said heaters 41, 42, due to the increase in surface area, can be ribbed, corrugated, perforated, latticed or otherwise shaped.

Claims (7)

  1. 6. PATENT CLAIMS 1. An illuminated motor vehicle with an improved heat exchanger comprising: a housing (1) preferably consisting of a thermoplastic polymeric material and which is closed on the front side by a light permeable wall (11) and, on the rear, comprises as a door shaped an aperture (12) in the region of which the interior of the housing (1) is sealed against the intrusion of moisture and impurities inside the housing (1) by means of a seal (5); - a light source (2) which is mounted inside the housing (1) and represents one or more LEDs or a filament lamp, in particular a halogen lamp; - at least one reflector (3) which, like the said light source (2), is arranged inside the housing and adapted to divert the light beams generated by the light source (2) through said wall (11) into the area in front of the lamp; as well as at least one heat sink (4) provided for discharging heat from the interior of the lamp housing (1) to an area outside the lamp housing (1), characterized in that the heat sink (4) consists of an internal heat exchanger (41) , which consists of a heat-conducting material and is arranged inside the housing (1), and an outer heat exchanger (42) consisting of a heat-conducting material and disposed outside the housing (1), said heat exchanger (41, 42) being (12) in the housing (1), and with the possibility of effective heat transfer, at least from the internal heat exchanger (41) to the outer surface (41) of the heat exchanger a heat exchanger (42).
  2. Light according to claim 1, characterized in that the internal heat exchanger (41) and the outer heat exchanger (62) are dismountably interconnected in the region of the said open door (12) at the rear of the housing (1) of the lamp, but in such a way that they closely enclose each other in a connected state and an efficient heat transfer is provided between them. 7
  3. Light according to claim 1 or 2, characterized in that the internal heat exchanger (41) is arranged in the upper region of the housing (1).
  4. Light according to one of claims 1 to 3, characterized in that at least one directed reflector (3) is arranged in the area of the internal heat exchanger (41).
  5. Light according to claim 4, characterized in that the light source (2) is arranged in a thermal conductive contact with the internal heat exchanger (41).
  6. Light according to one of claims 1 to 5, characterized in that the light source (2) is arranged below the internal heat exchanger (41).
  7. Light according to any one of the preceding claims, characterized in that the directed light source (2) is arranged above the reflector (3) at least one anti-reflector (3).
SI201300342A 2013-10-18 2013-10-18 a lamp of a motor vehicle with an improved outlet drawing heat SI24505A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI201300342A SI24505A (en) 2013-10-18 2013-10-18 a lamp of a motor vehicle with an improved outlet drawing heat

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SI201300342A SI24505A (en) 2013-10-18 2013-10-18 a lamp of a motor vehicle with an improved outlet drawing heat
EP20130005075 EP2863106A1 (en) 2013-10-18 2013-10-24 Motor vehicle light with improved heat transfer

Publications (1)

Publication Number Publication Date
SI24505A true SI24505A (en) 2015-04-30

Family

ID=49666907

Family Applications (1)

Application Number Title Priority Date Filing Date
SI201300342A SI24505A (en) 2013-10-18 2013-10-18 a lamp of a motor vehicle with an improved outlet drawing heat

Country Status (2)

Country Link
EP (1) EP2863106A1 (en)
SI (1) SI24505A (en)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6517218B2 (en) * 2000-03-31 2003-02-11 Relume Corporation LED integrated heat sink
JP2006140084A (en) * 2004-11-15 2006-06-01 Koito Mfg Co Ltd Vehicle lamp
FR2885990B1 (en) * 2005-05-23 2007-07-13 Valeo Vision Sa Light - emitting diode lighting and / or signaling device for motor vehicle.
US7344289B2 (en) * 2005-12-07 2008-03-18 Visteon Global Technologies, Inc. Headlamp assembly with integrated reflector and heat sink
JP4739977B2 (en) * 2006-02-20 2011-08-03 スタンレー電気株式会社 LED lights for vehicles
JP2007220618A (en) * 2006-02-20 2007-08-30 Stanley Electric Co Ltd Vehicular led lighting fixture
US20080247177A1 (en) * 2007-02-09 2008-10-09 Toyoda Gosei Co., Ltd Luminescent device
US20090059594A1 (en) * 2007-08-31 2009-03-05 Ming-Feng Lin Heat dissipating apparatus for automotive LED lamp
DE102007055165A1 (en) * 2007-11-19 2009-05-20 Osram Gesellschaft mit beschränkter Haftung LED headlights
DE102008031256A1 (en) 2008-07-02 2010-01-07 Osram Gesellschaft mit beschränkter Haftung Lighting unit for vehicle headlights and vehicle headlights

Also Published As

Publication number Publication date
EP2863106A1 (en) 2015-04-22

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Date Code Title Description
OO00 Grant of patent

Effective date: 20150512

KO00 Lapse of patent

Effective date: 20190628