EP3891433A1 - Kühlkörper für ein kraftfahrzeuglichtmodul - Google Patents
Kühlkörper für ein kraftfahrzeuglichtmodulInfo
- Publication number
- EP3891433A1 EP3891433A1 EP19813450.4A EP19813450A EP3891433A1 EP 3891433 A1 EP3891433 A1 EP 3891433A1 EP 19813450 A EP19813450 A EP 19813450A EP 3891433 A1 EP3891433 A1 EP 3891433A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat sink
- cooling plates
- elements
- motor vehicle
- base body
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 claims abstract description 70
- 230000013011 mating Effects 0.000 abstract 1
- 241000218657 Picea Species 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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
- 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
- F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
- F21V29/713—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements in direct thermal and mechanical contact of each other to form a single system
-
- 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
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
- F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
Definitions
- the invention relates to a heat sink for at least one light source
- Motor vehicle light module preferably a motor vehicle headlight light module
- the cooling body is a base body and can be arranged on the base body
- cooling plates preferably made of metal, such as aluminum, are designed to be in heat-conducting contact with the base body, each cooling plate having a base side, the base body having fastening elements on a surface, the surface of the base sides of the Cooling plates is facing, with counter elements corresponding to the fastening elements being arranged on each base side, the fastening elements being designed to engage in the counter elements.
- cooling plates are designed to be in heat-conducting contact with the base body means that the cooling plates, when they are on the base body
- Base body are arranged or connected to the base body, are in heat-conductive contact with the base body.
- the invention relates to a motor vehicle light module or motor vehicle headlight light module with at least one aforementioned heat sink.
- the invention relates to a motor vehicle headlight with at least one such motor vehicle light module or motor vehicle headlight light module.
- Heat sinks of the type mentioned above are known from the prior art. Such heat sinks are often used as the basic component of a motor vehicle light module or a motor vehicle headlight light module. In such a light module, the heat sink serves as a support for a light source and dissipates the heat from it when the light source is in operation.
- Construction spaces that are available in a motor vehicle or in a motor vehicle headlight for a light module depend very much on the type of motor vehicle and the motor vehicle headlight. It is known to be different
- Motor vehicle manufacturers use very differently designed motor vehicle headlights. It is therefore very difficult to differentiate one and the same heat sink in motor vehicle light modules or motor vehicle headlight light modules
- the object of the present invention is to eliminate the above-mentioned disadvantages of the prior art and to provide a heat sink, the shape of which can be varied and conform to the specified contours of a motor vehicle light module
- Counter elements are arranged at regular intervals from one another on the respective base sides and the grid has a grid spacing, the grid spacing being greater than the distance between the counter elements.
- the number of possible arrangements of the cooling plates on the base body is thus increased.
- different cooling plates for example formed separately from one another, can be fastened to the cooling body in different positions.
- the basic sides are formed separately from one another.
- the individual cooling plates are not formed in one piece with one another but as individual parts which are separate from one another.
- the individual cooling plates can be fastened at different positions relative to one another on the surface of the heat sink.
- the individual cooling plates can be arranged or attached to the surface of the cooling body in one direction, preferably in two directions, offset from one another along the surface.
- the cooling plates can thus be attached to the heat sink in accordance with a spatial limitation or specification by the shape of the motor vehicle light module.
- the term “arranged in a grid” is understood to mean a matrix-array-like arrangement, for example an arrangement in corner points of an imaginary two-dimensional, preferably regular, in particular square, grid.
- the base sides lie in a plane arranged parallel to the surface of the base body.
- fastening elements and / or the counter elements are of identical design.
- the counter-elements are arranged in a row, which preferably extends along a longitudinal direction of the base side.
- each cooling plate is U-shaped and has a pair of legs that are essentially parallel to each other and connected by a connecting web, the connecting web forming the base side.
- each cooling plate is L-shaped, the base being formed by a short side of the L-shaped cooling plate.
- the distance between the counter elements is the same for all cooling plates and is preferably approximately half the grid spacing. This means that many more variants can be realized with one and the same heat sink and heat sink.
- cooling plates can be connected to the base body by pressure joining.
- the fastening elements are designed as projections, for example cylindrical projections, which preferably have a monolithic structure form with the base body, and the counter-elements are designed as recesses corresponding to the projections, preferably through holes.
- cylindrical projections are formed, which preferably form a monolithic structure with the cooling plates, and the fastening elements are designed as recesses corresponding to the projections, preferably through holes.
- the cooling plates on the base body are arranged offset in relation to one another in a direction which is preferably predetermined by the grid, the cooling plates preferably being in a different one, for example from that
- predetermined direction orthogonal direction are arranged equidistant to each other.
- Figures la and lb an exploded view of a heat sink.
- Figure 2 is a front view of the heat sink of Figure la.
- Fig. 3 is a sectional view of the heat sink of Figure la or lb.
- Fig. 4 is an exploded view of a heat sink with staggered cooling plates.
- Heat sink 1, 100 with a base body 2 and differently designed cooling plates 3, 300, which are arranged on the base body 2 and are in heat-conducting contact with the base body 2.
- Such a heat sink 1, 100 is preferably used to cool a spruce source (not shown), for example a semiconductor-based spruce source, in particular an FED spruce source a light module (not shown) and can serve as a carrier for this light source and possibly also for other elements that are provided for imaging light that is generated by the light source, such as reflectors, lens (s) carrying lens holders, Lenses etc.
- a spruce source for example a semiconductor-based spruce source, in particular an FED spruce source a light module (not shown) and can serve as a carrier for this light source and possibly also for other elements that are provided for imaging light that is generated by the light source, such as reflectors, lens (s) carrying lens holders, Lenses etc.
- the aforementioned light module can be installed, for example, in a motor vehicle headlight or in a motor vehicle.
- Both the base body 2 and the cooling plates 3, 300 are made of a heat-conducting material, preferably metal, for example aluminum, such as A199.5 or A199.9.
- the term aluminum also includes aluminum alloys such as AlMg3.
- the base body 2 is formed from A199.5 or A199.9 and that
- Cooling plates 3, 300 are formed from AlMg3.
- Each cooling plate 3, 300 has a base side 31, 310.
- the base body 2 can be designed as a plate.
- On a surface 22 of the base body 2 facing the base sides 31, 310 for example, identically designed fastening elements 21 are arranged.
- the base sides 31, 310 preferably lie in a plane arranged parallel to the surface 22 of the base body 2.
- On each base 31, 310 are
- Fasteners 21 correspond.
- the counter-elements 32 can be arranged in a row along a long side of the base side 31, 310 of the respective cooling plate 3, 300.
- the fastening elements 21 engage in the counter elements 32.
- the fastening elements 21 are arranged in a grid 23.
- arranged in a grid is used to describe a matrix-array-like arrangement, for example an arrangement in
- the counter elements 32 are regular on the respective base sides 31, 310
- each cooling plate 3 is U-shaped.
- Each cooling plate 3 has two legs 33 which run at a mutual distance essentially parallel to one another and are connected by a connecting web 31.
- the base side is formed by the connecting web 31.
- FIG. 1b shows an embodiment in which each cooling plate 300 is L-shaped, the base side being formed by a short side 310 of the L-shaped cooling plate 300.
- Both the U- and the L-shaped cooling plates 3, 300 can be arranged on the base body 2 and connected to it.
- the short side 310 of the L-shaped cooling plate 300 and the connecting web 31 of the U-shaped cooling plate 300 can be configured identically.
- Counter elements 33 in all cooling plates 3, 300 be the same and preferably be approximately half the grid spacing d2.
- the distance dl is for example between 8mm and 12mm, preferably between 9mm and 11mm. In particular, the distance dl can be between 9.5 mm and 10 mm, which facilitates the manufacture of the base bodies 2 with fastening elements 21.
- All cooling plates for example U-shaped 3 or L-shaped 300 cooling plates, can be of identical design.
- the cooling plates 3, 300 can be connected to the base body 2, for example by pressure joining or clinching.
- FIG. 3 shows that the further surface 24 can have depressions 25 corresponding to the fastening elements 21, which are produced by using a tool with which the fastening elements 21 are pressed.
- the number and / or the arrangement of the depressions 25 and the corresponding fastening elements 21 can be chosen such that the heat transfer is not impaired.
- the surface 24 can be used as serve as a supporting surface for a circuit board with a number of LED light sources.
- the LED light sources can be arranged on the circuit board, for example in a matrix array, such as a 2x3, 3x3, 3x4 or 4x4 array.
- FIG 2 shows a front view of the heat sink 1 of Figure la
- Figure 3 shows one
- FIGS. 1 a, 1 b, 2 and 3 Sectional view of the heat sink 1 of Figure la or the heat sink 100 of Figure lb. It can be seen from FIGS. 1 a, 1 b, 2 and 3 that the fastening elements can be designed as projections 21, which are, for example, cylindrical, which can form a monolithic structure with the base body 2.
- the counter-elements can be designed as recesses 32, preferably through holes, corresponding to the projections.
- the counter-elements are designed as, for example, cylindrical projections, which preferably form a monolithic structure with the cooling plates. It is expedient if the fastening elements are designed as recesses corresponding to the projections, preferably through holes.
- FIG. 4 shows that the cooling plates 3 on the base body 2 can be arranged offset to one another in a predetermined direction X.
- the direction X can be predetermined by the grid 23, for example. It is understood that the grid 23 described above specifies two directions. These are the directions in which the grid extends. However, it is entirely conceivable that the direction X is different from that through the grid 23
- FIG. 4 also shows that the centrally arranged cooling plates 3 protrude beyond an edge of the base body 2.
- the arrangement of the cooling plates 3 on the base body 2 has an arcuate course.
- Other arrangements of the cooling plates 3 on the base body 2 are also conceivable.
- the U-shaped cooling plates 3 can be clearly seen in FIG. 4, the F-shaped cooling plates 300 or cooling plates of another shape can also be arranged offset on the base body 2.
- the cooling plates 3, 300 are preferably in a different one, for example to that
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18210206.1A EP3663642A1 (de) | 2018-12-04 | 2018-12-04 | Kühlkörper für ein kraftfahrzeuglichtmodul |
PCT/EP2019/082736 WO2020114859A1 (de) | 2018-12-04 | 2019-11-27 | Kühlkörper für ein kraftfahrzeuglichtmodul |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3891433A1 true EP3891433A1 (de) | 2021-10-13 |
Family
ID=64664037
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18210206.1A Withdrawn EP3663642A1 (de) | 2018-12-04 | 2018-12-04 | Kühlkörper für ein kraftfahrzeuglichtmodul |
EP19813450.4A Pending EP3891433A1 (de) | 2018-12-04 | 2019-11-27 | Kühlkörper für ein kraftfahrzeuglichtmodul |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18210206.1A Withdrawn EP3663642A1 (de) | 2018-12-04 | 2018-12-04 | Kühlkörper für ein kraftfahrzeuglichtmodul |
Country Status (6)
Country | Link |
---|---|
US (1) | US11585512B2 (de) |
EP (2) | EP3663642A1 (de) |
JP (1) | JP7220289B2 (de) |
KR (1) | KR102554175B1 (de) |
CN (1) | CN113167457B (de) |
WO (1) | WO2020114859A1 (de) |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3862861B2 (ja) * | 1998-06-19 | 2006-12-27 | 稔之 新井 | 電装部品用ヒートシンクの製造方法 |
CN1148627C (zh) * | 1999-04-08 | 2004-05-05 | 富准精密工业(深圳)有限公司 | 电脑芯片散热装置及其制造方法 |
JP4411147B2 (ja) * | 2004-06-24 | 2010-02-10 | 株式会社日立製作所 | ファン付きヒートシンク |
CN2720626Y (zh) * | 2004-06-25 | 2005-08-24 | 鸿富锦精密工业(深圳)有限公司 | 散热器 |
CN200944727Y (zh) * | 2006-08-18 | 2007-09-05 | 鸿富锦精密工业(深圳)有限公司 | 组合式散热器 |
JP2008059965A (ja) * | 2006-09-01 | 2008-03-13 | Stanley Electric Co Ltd | 車両前照灯,照明装置及びその放熱部材 |
TWM337229U (en) | 2008-02-01 | 2008-07-21 | Neng Tyi Prec Ind Co Ltd | Heat dissipating element and heat radiator containing the same |
US8196643B2 (en) * | 2009-01-20 | 2012-06-12 | Shyh Ming Chen | Ring heat dissipating device formed by punching and riveting through a shaping mold |
JP5149324B2 (ja) * | 2010-03-31 | 2013-02-20 | 株式会社日本自動車部品総合研究所 | 車両用前照灯 |
TWM416308U (en) * | 2011-05-27 | 2011-11-11 | Shi-Ming Chen | Fin type heat sink fastening structure |
US20120325430A1 (en) * | 2011-06-21 | 2012-12-27 | Shih-Ming Chen | Fin type heat sink fixing assembly |
JP2013062091A (ja) * | 2011-09-12 | 2013-04-04 | Sharp Corp | 光源ユニット、光源ユニットの整列治具、および、当該整列治具を用いて製造される光源ユニット |
US20130299154A1 (en) * | 2012-05-11 | 2013-11-14 | Sheng-Huang Lin | Thermal module and manufacturing method thereof |
EP2770253B1 (de) * | 2013-02-26 | 2016-05-04 | Showa Denko K.K. | Wärmestrahlungsvorrichtung für LED-Beleuchtung |
CN104807362A (zh) * | 2015-04-22 | 2015-07-29 | 哈尔滨工程大学 | 一种高效板翅式换热器翅片 |
FR3041080B1 (fr) * | 2015-09-14 | 2020-05-29 | Valeo Vision | Dispositif de dissipation thermique pour un module lumineux de vehicule automobile |
FR3055401B1 (fr) | 2016-09-01 | 2020-06-19 | Valeo Vision | Module lumineux de vehicule automobile a organe de refroidissement |
KR101709669B1 (ko) * | 2016-09-27 | 2017-02-23 | (주)에스엘글로우 | 방열편 및 이를 이용하여 제작된 방열판 및 led 가로등 |
DE202018100769U1 (de) * | 2018-02-13 | 2019-05-14 | Automotive Lighting Reutlingen Gmbh | Lichtmodul und Fertigungsstation |
-
2018
- 2018-12-04 EP EP18210206.1A patent/EP3663642A1/de not_active Withdrawn
-
2019
- 2019-11-27 US US17/299,286 patent/US11585512B2/en active Active
- 2019-11-27 JP JP2021531670A patent/JP7220289B2/ja active Active
- 2019-11-27 WO PCT/EP2019/082736 patent/WO2020114859A1/de unknown
- 2019-11-27 CN CN201980079790.8A patent/CN113167457B/zh active Active
- 2019-11-27 EP EP19813450.4A patent/EP3891433A1/de active Pending
- 2019-11-27 KR KR1020217018295A patent/KR102554175B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
CN113167457A (zh) | 2021-07-23 |
KR20210091275A (ko) | 2021-07-21 |
JP7220289B2 (ja) | 2023-02-09 |
JP2022511833A (ja) | 2022-02-01 |
CN113167457B (zh) | 2024-02-09 |
US20220049832A1 (en) | 2022-02-17 |
EP3663642A1 (de) | 2020-06-10 |
KR102554175B1 (ko) | 2023-07-12 |
WO2020114859A1 (de) | 2020-06-11 |
US11585512B2 (en) | 2023-02-21 |
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