• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A heat sink (140) for cooling an electronic component of a vehicle headlamp, which has a cooling structure with an outer contour that follows along an imaginary sectional plane follows a contour curve that is writable in at least a portion by a contour function, wherein a first superposition of a basic function and a basic function a basic course is formed, and the contour function is formed from a second superimposition of the basic course and an overlay function, wherein the first superimposition takes place in that the function function of the base function forms an axis of a curvilinear coordinate system of the basic function, and the second superimposition takes place by the function course of the basic function Basic function forms an axis of a curvilinear coordinate system of the overlay function, wherein the base function has a rectilinear, circular or circular arc-like course, and the basic function of a straight line or wave-shaped course, and the overlay function has a wave-shaped course.
    公开号:AT520072A4
    申请号:T50631/2017
    申请日:2017-07-28
    公开日:2019-01-15
    发明作者:Sieber Lukas；Karlinger Günter；hauer Clemens；Schragl Mathias
    申请人:Zkw Group Gmbh；
    IPC主号:
    专利说明:

    Summary
    Heat sink (140) for cooling an electronic component of a vehicle headlight, which has a cooling structure with an outer contour, which, viewed along an imaginary section plane, follows a contour curve which can be described in at least one section by a contour function, with a first superimposition of a basic function and a basic function a basic course is formed, and the contour function is formed from a second superimposition of the basic course and an overlay function, the first superimposition taking place by the functional course of the basic function forming an axis of a curvilinear coordinate system of the basic function, and the second superimposition taking place by the functional course of the Basic function forms an axis of a curvilinear coordinate system of the superimposition function, the basic function having a straight, circular or arc-like course, and the basic function a straight line or has an undulating course, and the overlay function has an undulating course.
    Fig. 4d
    1/32
    P14957
    Heatsink and vehicle headlights
    The invention relates to a heat sink for cooling an electronic component of a vehicle headlight, the heat sink having a cooling structure with an outer contour which, viewed along an imaginary section plane, follows a contour curve which can be described in at least one section by a contour function.
    In many applications, heat that is generated, for example, by power electronics power dissipation, must be dissipated appropriately. For this purpose, heat sinks are often used, which are connected to the heat source in order to enlarge the heat-emitting surface of a heat-producing component. This is to prevent possible damage from overheating.
    The heat transfer from a heat source to the surrounding cooling medium (mostly air, but also water or other liquids) is primarily dependent on the temperature difference, the effective surface and the flow rate of the cooling medium. A heat sink has the task of conducting heat loss away from the heat-generating component by heat conduction and then emitting it to the surroundings by heat radiation and / or convection of the heat sink. In order to keep the thermal resistance as low as possible, the heat sink should consist of a good heat-conducting material and have a dark surface that is as large as possible. Vertical installation can support the air circulation due to the chimney effect.
    When installing a heat sink in a vehicle, in particular in a vehicle headlight, other aspects come into play, such as the installation volume, the installation weight, the manufacturing process or the material. In addition, design, manufacturing and assembly costs are very important.
    It is an object of the invention to provide a heat sink which is particularly well suited for installation in a vehicle headlight and which improves the thermal properties.
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    P14957
    The object is achieved by a heat sink in that a basic course is formed from a first superimposition of a basic function and a basic function, and the contour function is formed from a second superimposition of the basic course and a superimposing function, the first superimposition taking place by the functional course of the basic function The axis of a curvilinear, preferably orthogonal, coordinate system of the basic function forms, and the second superimposition takes place in that the functional course of the basic function forms an axis of a curvilinear, preferably orthogonal, coordinate system of the superimposing function, the basic function having a straight, circular or circular arc-like course, and the basic function one has a rectilinear or undulating course, and the overlay function has an undulating course.
    In this context, a wave-shaped course means a course that can be described by a function that corresponds, for example, to a sine function, a triangular function, a sawtooth function or a periodically running semicircular function. Other periodic functions are also possible, especially those that correspond to the amount of a periodic function. Consequently, an amount of a sine function is also possible according to the examples mentioned above. For the course, it is advantageous if at least ten, preferably thirty, particularly preferably fifty periods of the function form the undulating course.
    It is thereby achieved that the heat sink has a significantly enlarged surface area, and at the same time the convection flow of the warm, rising air or the cooling medium is improved. This leads to an improvement in the efficiency of the heat sink. In other words, a heat sink with the same thermal efficiency can have a smaller volume or a lower weight due to a larger surface for heat radiation and better convection properties, which is particularly advantageous for the heat sink of a vehicle headlight.
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    P14957
    The inventors have surprisingly found that the thermal efficiency can be significantly improved beyond the prior art by a special configuration of the shape of a heat sink or its surface. In other words, the volume and weight can be reduced, which can lead to lower costs.
    In particular when using heat sinks in vehicle headlights, in which the installation size and installation dimensions are important, the thermal efficiency achieved can contribute to a favorable design of a heat sink.
    In this context, the basic function, the basic function and the overlay function can be described using a curvilinear coordinate system. In a preferred embodiment, the axes of these curvilinear coordinate systems are oriented normal to one another in their origin. Curvilinear coordinates are coordinate systems in Euclidean space, where the coordinate lines can be curved and which are diffeomorphic to Cartesian coordinates.
    The coordinate axes are defined as tangents to coordinate lines. Since the coordinate lines are generally curved, the coordinate axes are not spatially fixed, as is the case for Cartesian coordinates.
    The effect of the invention can be enhanced if the heat sink has a base on which at least two ribs or at least two pins are arranged, which are oriented essentially parallel to one another. This creates a chimney effect between two opposite surfaces of two cooling fins or cooling pins, which additionally improves the convection of the cooling medium together with the surface design according to the invention. The parallel arrangement also has manufacturing advantages.
    In this context, “arranged essentially in parallel means that, for example, two geometric center lines of two adjacent cooling fins, which run in the direction of the longitudinal extent of the cooling fin and preferably transverse to the base, enclose an angle to one another that is less than 10 °, preferably less than 5 ° and
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    P14957 is particularly preferably less than 1 °. A parallel arrangement of cooling pins corresponds to a matrix-like arrangement.
    It is also advantageous if the contour function describes at least parts of two opposite sides of the outer contour of at least part of the heat sink, that is to say, for example, a rib or a pin, the sides being at a distance from one another and the overlay function being periodic with an overlay period length, wherein the overlay period length is preferably at most half as long, particularly preferably at most one third as long as the distance. It can thereby be achieved that the convection flow of the cooling medium is further increased.
    The inventors have also noticed that the thermal efficiency is particularly good when the cooling fins are shaped according to a linear basis function, a linear basic function and a sinusoidal superimposition function, the superimposition period length being at most one third as long as the distance
    The inventors have observed a further improvement in thermal efficiency when the cooling fins are shaped according to a linear basis function, a linear basic function and a triangular overlay function, the overlay period length being at most one third as long as the distance
    The inventors have observed an additional improvement in thermal efficiency when the cooling fins are shaped according to a linear basis function, a wave-like basic function and a triangular overlay function, the overlay period length being at most one third as long as the distance
    In this context, the external contour of the heat sink means the shape of the surface of the heat sink.
    It is particularly expedient if the ribs or pins have a spacing between opposite parts of the outer contour, and the overlay function has a periodic course with an overlay period length, the overlay period length preferably being at most half as long, particularly preferred
    5/32
    P14957 at most one third as long as the distance. The inventors have surprisingly noticed that the flow of thermal convection on the surface of the heat sink can be significantly improved by this embodiment and the heat sink can be designed more efficiently.
    In a preferred embodiment of the invention, the basic function has a periodic course with a basic period length and the superimposition function has a periodic course with a superimposed period length, the basic period length being at least preferably five times as long, particularly preferably ten times as long as the superimposed period length. The inventors have also surprisingly noticed that this embodiment can further improve the flow of thermal convection on the surface of the heat sink and the efficiency of the heat sink is particularly good.
    In a particularly preferred embodiment of the invention, the basic function and the superimposition function each run differently, either in an undulating manner, the amount of undulating or triangular. In addition to the previously mentioned aspects, the inventors have surprisingly found that the flow of thermal convection on the surface of the heat sink can be further optimized by this embodiment and the efficiency of the heat sink is particularly good.
    A favorable embodiment of the invention has a vehicle headlight, which comprises a lamp and / or power electronics, a heat sink according to the invention, and an optical system. The illuminant and / or the power electronics is / are coupled to the heat sink. This can be achieved that a vehicle headlight is created, which has particular advantages in terms of installation volume, installation weight, manufacturing process and costs for construction, manufacture and assembly.
    The invention and its advantages are described in more detail below with reference to non-limiting exemplary embodiments, which are illustrated in the accompanying drawings. The drawings show in
    6/32
    P14957
    1 is a perspective view of a heat sink according to the prior art with ribs and smooth surface,
    1 in a view from the front,
    1b shows a section of the heat sink in a horizontal sectional plane A-A according to FIG.
    2 is a perspective view of a heat sink according to the prior art with ribs and corrugated surface,
    2a the heat sink according to FIG. 2 in a view from the front,
    2b shows a section of the heat sink in a horizontal sectional plane B-B according to FIG. 2a,
    3 is a perspective view of a first embodiment of a heat sink according to the invention with ribs and corrugated surface,
    3a shows the heat sink according to FIG. 3 in a view from the front,
    3b shows a detail of the heat sink in a horizontal sectional plane C-C according to FIG. 3a,
    3c shows a detail of a second embodiment of a heat sink according to the invention in a horizontal sectional plane according to FIG. 3a,
    4 is a perspective view of a third embodiment of a heat sink according to the invention with ribs and a corrugated surface,
    4a the heat sink according to FIG. 4 in a view from the front,
    4b shows a section of the heat sink in a horizontal sectional plane D-D according to FIG. 4a,
    4c shows a detail of a fourth embodiment of the heat sink in a horizontal sectional plane,
    4d shows a detail of a fifth embodiment of the heat sink in a horizontal sectional plane,
    4e shows a basic function and an overlay function of the heat sink
    4c,
    4f shows a basic function and an overlay function of the heat sink
    4d,
    5 is a perspective view of a heat sink according to the prior art with pins and smooth surface,
    5a the heat sink according to FIG. 5 in a view from the front,
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    P14957
    5b shows a detail of the heat sink in a horizontal sectional plane E-E according to FIG. 5 in a view from above,
    6 is a perspective view of a sixth embodiment of a heat sink according to the invention with pins and a corrugated surface,
    6a the heat sink according to FIG. 6 in a view from the front,
    6b shows a detail of the heat sink in a horizontal sectional plane F-F according to FIG. 6 in a view from above,
    Fig. 7 shows a vehicle headlight shown symbolically, which comprises a heat sink according to the invention.
    Exemplary embodiments of the invention will now be explained in more detail with reference to FIGS. 1 to 7. In particular, parts that are important for the invention are shown in a headlight, it being clear that a headlight also contains many other parts, not shown, which enable a sensible use in a motor vehicle, such as in particular a car, motorcycle or e-car. For the sake of clarity, electronics, further optical elements, mechanical adjustment devices or brackets, for example, are therefore not shown.
    In a broader context, an external contour of a heat sink means the shape of the surface of the heat sink.
    Typically, a heat sink is made of a metal, e.g. aluminum, which is formed by means of a forming process such as e.g. Extrusion, a casting process such as pressure or injection molding or a CNC milling process. Alternatively, production by a 3D metal printing process is conceivable.
    For example, the power loss of an electronic component, in particular an electronic power component such as an FED or an electric transistor, leads to heat. This must be removed to avoid impairment of function and possible destruction of the component. Heat sinks that are in thermal contact with this heat source improve the dissipation of the heat. Heat sinks often include cooling fins to increase the surface area of the heat sink and improve its efficiency. For a favorable convection flow on the surface of the heat sink, it is advantageous if the heat sink with cooling fins in an installed position,
    8/32
    P14957, for example, is arranged in a vehicle headlight in such a way that cooling fins are oriented vertically.
    1 shows a heat sink 200 with ribs 201 and a base 203 according to the prior art. The heat sink 200 is shown in a side view in FIG. FIG. 1b shows a section or a cooling fin 201 of the heat sink 200 in a sectional view according to the horizontal sectional plane AA of FIG. La, wherein a smooth outer contour of the surface and the thickness or the distance 205 of the opposite outer surfaces of the fin 201 of the heat sink 200 can be seen is.
    2 shows a heat sink 210 with ribs 211 and a base 213 according to the prior art. The heat sink 210 is shown in a side view in FIG. 2a. 2b shows a section, or a cooling fin 211 of the heat sink 210 in a sectional view according to the horizontal sectional plane BB of FIG. 2a, wherein a corrugated outer contour of the surface and the thickness or the distance 215 of the opposite outer surfaces of the fin 211 of the heat sink 210 can be seen is.
    FIG. 3 shows a heat sink 100 according to the invention with ribs 101 and a base 103. In FIG. 3a, the heat sink 100 is shown in a side view. 3b shows a section, or a cooling fin 101 of the heat sink 100 in a sectional view according to the horizontal sectional plane C-C of FIG. 3a, a corrugated outer contour of the surface of the heat sink 100 according to the invention being evident.
    The heat sink 100 is suitable for cooling an electronic component of a vehicle headlight. In a sectional plane C-C according to FIG. 3a of the heat sink 100 there is a cutting curve which describes the outer contour of the heat sink 100.
    The cooling body 100 has a cooling structure with an outer contour which, viewed along an imaginary section plane, follows a contour curve which can be described by at least one section using a contour function.
    9/32
    P14957
    A basic course is formed from a first superposition of a basic function and a basic function. The contour function is formed from a second overlay of the basic course and an overlay function.
    The first superposition takes place in that the function course of the basic function forms an axis of a curvilinear, here orthogonal coordinate system of the basic function. The second superimposition takes place in that the function course of the basic function forms an axis of a curvilinear, here orthogonal coordinate system of the superimposition function.
    The basic function has a rectilinear, circular or arc-like course. The basic function has a straight or undulating course. The overlay function has a wavy course.
    A wave-shaped course means, for example, a course that can be described by a sine function, the magnitude of a sine function, a triangular function, a sawtooth function or by a periodic semicircle function. Other periodic functions are also possible, especially those that correspond to the amount of a periodic function.
    Exemplary embodiments of the basic functions 300, 301, 302, 303, the basic functions 310, 311, 312, 333 and the overlay functions 330, 331, 332, 333 and the resulting contour functions 350, 351, 352, 353 are illustrated in FIGS. 4e and 4f. However, it should be noted that the contour functions 350, 351, 352, 353 shown are only for the basic illustration and not the mathematically exact implementation of the superimposition of the shown basic functions 300, 301, 302, 303, the basic functions 310, 311, 312, 313 and Overlay functions 330, 331, 332, 333 are.
    The heat sink 100 shown in FIG. 3 has a base 103 on which at least two ribs 101 are arranged, which are oriented essentially parallel to one another. The base 103 serves to contact a heat source which is to be cooled by means of the cooling body 100.
    10/32
    P14957
    3 shows two geometric center lines 106, 107 of two adjacent cooling fins 101, which run in a horizontal plane, for example in the sectional plane CC according to FIG. 3 a, in the direction of the longitudinal extension of the cooling fin, which have a horizontal angle 108, 109 with respect to the horizontal center line Include 106,107 which is less than 10 °, preferably less than 5 ° and particularly preferably less than 1 °. The center line 106 is indicated in FIG. 3b and the center line 116 is indicated in FIG. 3c.
    The parallel arrangement of the cooling fins 101 of the heat sink 100 can result from a forming process such as extrusion or a casting process such as die casting. However, it is advantageous if the surfaces of the ribs run parallel (with the same angle 108, 109 of 0 ° in each case) or at a small angle 108,109 (less than 10 °) with one another, since this also improves a convection flow of rising warm air .
    The ribs 101, starting from the side on which they are connected to one another via the base 103, taper in cross-section along the elevation of the ribs 101 towards their open end 104.
    The contour function 350 describes two opposite sides of the outer contour of a cooling fin of the heat sink 100, the sides being at a distance 105 from one another. The overlay function has a periodic course with an overlay period length, the overlay period length preferably being at most half as long, particularly preferably at most one third as long as the distance 105.
    In this context, the distance 105 is formed, for example, by a minimum distance 105min, a maximum distance 105max or an average distance.
    3c shows a second embodiment of the invention in the form of a heat sink 110 with a cooling fin 111 in a horizontal sectional plane (not shown), which corresponds to that of the sectional plane CC according to FIG. 3a, with a corrugated outer contour of the surface of the cooling fin 111 of the heat sink 110 according to the invention, and wherein the corrugated outer contours of the surface of the cooling fin 111 of the heat sink 110
    11/32
    P14957 on two opposite sides of the cooling fin 111 of the heat sink 110 are out of phase with those according to FIG. 3b. Here, the maxima of the superimposition function of the heat sink 110 are in phase, while the maxima of the heat sink 100 are arranged in opposite directions. In addition, the distance 115 of the opposite outer surfaces of the ribs 111 can be seen.
    FIG. 4 shows a third embodiment of the invention in the form of a heat sink 120 with ribs 121, the open ends 124 and a base 123. In FIG. 4 a, the heat sink 120 is shown in a side view. FIG. 4b shows a section of the heat sink 120 in a sectional view along the horizontal sectional plane D-D according to FIG. 4a, a corrugated outer contour of the surface of a cooling fin 121 of the heat sink 120 according to the invention being evident.
    In the sectional plane DD of the heat sink 120, a shape of the cutting curve can be seen, which is formed at least in part from a superimposition of a substantially linear or essentially circular basic function as well as a linear, an undulating or a triangular basic function and an undulating or the amount of an undulating superimposing function .
    The overlay is defined in that the functional curve of the basic function forms an axis of a curvilinear, preferably orthogonal coordinate system of the basic function, at least in sections, and the functional curve of the basic function forms, at least in sections, an axis of a curvilinear, preferably orthogonal coordinate system of the overlay function.
    The heat sink 100 is formed from at least two ribs 101, which are arranged essentially parallel to one another and are connected to one another on a pin side via a base 103.
    The ribs 121, starting from the side on which they are connected to one another via the base 123, taper in cross-section along the elevation of the ribs 121 towards their open end 124.
    12/32
    P14957
    The ribs 121 between opposite parts of the outer contour are at a distance 125. The overlay function has a periodic course with an overlay period length, the overlay period length preferably being at most half as long, particularly preferably at most one third as long as the distance 125.
    In this context, the distance 125 is formed, for example, by a minimum distance, a maximum distance or an average distance.
    4c shows a fourth embodiment of the invention in the form of a heat sink 130 with ribs 131, a spacing 360 and a base, which is constructed analogously to the previous embodiments. The sectional image shown corresponds to a sectional plane which is located corresponding to that of the sectional plane D-D according to FIG. 4a. Details of the surface design of the heat sink 130 in connection with a basic function 310 can be found in the overview with FIG. 4e, as will be explained further below.
    In a horizontal sectional plane (not shown) of the heat sink 130, a shape of the sectional curve can be seen, which at least partially consists of a superposition of a substantially linear or essentially circular basic function as well as a linear, an undulating or a triangular basic function 310 and 311 and an undulating or the amount of a wavy overlay function 330 and 331 is formed.
    The overlay is defined in that the function profile of the basic functions 300 and 301 forms an axis of a curvilinear, preferably orthogonal, coordinate system of the basic function 310 and 311, at least in sections, and the function profile of the basic function 310 and 311, at least in sections, forms an axis of a curvilinear, preferably orthogonal, coordinate system of the overlay function 330 and 331 forms.
    In this example, the axis of the coordinate system of the basic functions 300 and 301 is straight, and the coordinate system of the basic functions 300 and 301 is orthogonal at the origin.
    13/32
    P14957
    Likewise, the axis of the coordinate system of basic functions 310 and 311 is straight, and the coordinate system of basic functions 310 and 311 is orthogonal in origin.
    The basic functions 300 and 301 are spaced 360.
    The basic function 310 and 311 has a periodic course with a basic period length 320 and 321.
    The overlay function 330 and 331 has a periodic course with an overlay period length 340 and 341, the overlay period length 340 and 341 preferably being at most half as long, particularly preferably at most one third as long as the distance 360.
    The basic period length 320 and 321 is at least preferably five times as long, particularly preferably ten times as long as the superposition period length 340 and 341.
    In this context, the distance 360 is formed, for example, by a minimum distance, a maximum distance or an average distance.
    4d shows a fifth embodiment of the invention in the form of a heat sink 140 with ribs 141 and a base, which is constructed analogously to the previous embodiments. The sectional image shown corresponds to a sectional plane which is located corresponding to that of the sectional plane D-D according to FIG. 4a. Details of the surface design of the heat sink 140 in connection with a basic function 312 can be found in the overview with FIG. 4f, as will be explained further below.
    In a horizontal sectional plane (not shown) of the heat sink 140, a shape of the sectional curve can be seen, which at least partially consists of a superposition of a substantially linear or essentially circular basic function as well as a linear, an undulating or a triangular basic function 312 and 313 and an undulating or the amount of a wavy overlay function 332 and 333 is formed.
    14/32
    P14957
    The overlay is defined by the function curve of the basic function 302 and
    303, at least in sections, forms an axis of a curvilinear, preferably orthogonal, coordinate system of the basic functions 312 and 313, and the course of the function of the basic functions 312 and 313 forms, at least in sections, an axis of a curvilinear, preferably orthogonal, coordinate system of the overlay functions 332 and 333.
    In this example, the axis of the coordinate system of the basic functions 302 and 303 is straight and the coordinate system of the basic functions 302 and 303 is orthogonal at the origin.
    Likewise, the axis of the coordinate system of the basic functions 312 and 313 runs in a straight line, and the coordinate system of the basic functions 312 and 313 is orthogonal in origin.
    The basic functions 302 and 303 are at a distance 361.
    The basic function 312 and 313 has a periodic course with a basic period length 322 and 323.
    The overlay function 332 and 333 has a periodic course with an overlay period length 342 and 343, the overlay period length 342 and 343 preferably being at most half as long, particularly preferably at most one third as long as the distance 361.
    The basic period length 322 and 323 is at least preferably five times as long, particularly preferably ten times as long as the overlay period length 342 and 343.
    In this context, the distance 361 is formed, for example, by a minimum distance, a maximum distance or an average distance.
    The triangular basic function 312 and 313 and the wave-shaped overlay function 332 and 333 each have a different shape.
    15/32
    P14957
    5 shows a heat sink 220 with pins 222, their open ends 224 and one
    Basis 223 according to the state of the art. 5a shows the heat sink 220 in a side view. 5b shows a section of the heat sink 220 in a sectional view according to the horizontal sectional plane E-E according to FIG. 5a, wherein a smooth outer contour of the surface and a distance or diameter 225 of a pin 222 of the heat sink 220 can be seen.
    Fig. 6 shows a heat sink 150 according to the invention with pins 152, the open
    Ends 154 and a base 153. In Fig. 6a, the heat sink 150 is shown in a side view. 6b shows a section of the heat sink 150 in a sectional view along the horizontal sectional plane F-F according to FIG. 6a, a corrugated outer contour of the surface of the heat sink 150 according to the invention being evident.
    The pins 152, starting from the side on which they are connected to one another via the base 153, taper in cross-section along the elevation of the pins 152 towards their open end 154.
    The pins 152 have a diameter or a distance 155 between opposite parts of their outer contour. In this context, the distance 155 is formed, for example, by a minimum distance, a maximum distance or an average distance.
    A vehicle headlight 10 is symbolically shown in FIG. 7, which comprises a lamp 11, power electronics 12, heat sink 100 and optics 13.
    The illuminant 11 is formed, for example, from one or more LEDs or laser diodes. The power electronics 12 include, for example, driver transistors for LEDs as the illuminant 11.
    The illuminant 11 and the power electronics 12 are preferably connected to a heat sink 100 according to the invention via a contact element 14, for example a mica disk or a mass of heat-conducting paste, which improves the thermal resistance and thereby ensures good thermal coupling of the heat source to the heat sink.
    16/32
    P14957
    The optics 13 can have one or more optical elements, for example in the form of lenses,
    Include bezels or transparent covers.
    17/32
    P14957
    Reference symbol list:
    100, 110, 120, 130, 140,
    150,200, 210, 220 Heatsink
    101,111,121,131,141,
    152.201, 211, 222 Rib or pin of the heat sink 103, 123, 153, 203, 213, 223 Base of the heat sink 104,124,154 open end of the rib or pin
    105.105min, 105max,
    115,125,155,
    205.215, 225.360, 361 distance 106,107,116 Center line 108.109 angle 300,301,302, 303 Basic function 310.311, 312, 313 Basic function 320,321, 322, 323 Basic period length 330,331, 332, 333 Overlay function 340,341, 342, 343 Overlay period length 350,351, 352, 353 Contour function 10th Vehicle headlights 11 Illuminant 12th Power electronics 13 Optics 14 Contact element 15 Beam of light
    18/32
    P14957
    权利要求:
    Claims (6)
    [1]
    Claims
    1. heat sink (100, 110, 120, 130, 140, 150) for cooling an electronic component of a vehicle headlight (10), the heat sink (100, 110, 120, 130, 140, 150) having a cooling structure with an outer contour which, viewed along an imaginary cutting plane, follows a contour curve which in at least one section is represented by a contour function (350, 351, 352, 353) can be described, characterized in that a basic course is formed from a first superimposition of a basic function (300, 301, 302, 303) and a basic function (310, 311, 312, 313), and from a second superimposition of the basic course and a Overlay function (330, 331, 332, 333) the contour function (350, 351, 352, 353) is formed, the first overlay being carried out by the function course of the basic function (300, 301, 302, 303) an axis of a curvilinear, preferably orthogonal coordinate system of the basic function (310 , 311, 312, 313), and the second overlay takes place by the Function course of the basic function (310, 311, 312, 313) forms an axis of a curvilinear, preferably orthogonal coordinate system of the overlay function (330, 331, 332, 333), the basic function (300, 301, 302, 303) having a straight, circular or arc-like course, and that Basic function (310, 311, 312, 313) has a straight or undulating course, and the overlay function (330, 331, 332, 333) has a undulating course.
    [2]
    2. The heat sink (100, 110, 120, 130, 140, 150) according to claim 1, characterized in that the heat sink (100, 110, 120, 130, 140, 150) has a base (103, 123, 153, 203, 213, 223) on which at least two ribs (101, 111, 121, 131, 141, 152) or at least two pins (201, 211, 222 ) are arranged, which are oriented essentially parallel to each other.
    [3]
    3. heat sink (100, 110, 120, 130, 140, 150) according to one of the preceding claims, characterized in that the contour function (350, 351, 352, 353) two opposite sides of the outer contour of the heat sink (100, 110, 120, 130, 140, 150),
    19/32
    P14957 preferably describes two opposite sides of the outer contour of ribs (101, 111, 121, 131, 141, 152) or pins (201, 211, 222) of the heat sink (100, 110, 120, 130, 140, 150) which are at a distance from one another (105, 115, 125, 155, 360, 361) and the overlay function (330, 331, 332, 333) has a periodic course with an overlay period length (340, 341, 342,343), the overlay period length (340, 341, 342,343) preferably being at most half as long, particularly preferably at most one third as long as the distance (105, 115, 125, 155) , 360, 361).
    [4]
    4. Heat sink (100, 110, 120, 130, 140, 150) according to one of the preceding claims, characterized in that the basic function (310, 311, 312, 313) has a periodic course with a basic period length (320, 321, 322, 323) and the
    Overlay function (330, 331, 332, 333) has a periodic course with an overlay period length (340, 341, 342,343), the
    Basic period length (320, 321, 322, 323) is at least preferably five times as long, particularly preferably ten times as long as the superposition period length (340, 341, 342, 343).
    [5]
    5. heat sink (100, 110, 120, 130, 140, 150) according to one of the preceding claims, characterized in that the basic function (310, 311, 312, 313) and the superimposition function (330, 331, 332, 333) each different, either wavy, the amount of wavy or triangular.
    [6]
    6. Vehicle headlight (10), comprising a lamp (11) and / or power electronics (12) and optics (13), characterized in that a heat sink (100, 110, 120, 130, 140, 150) according to one of the preceding claims is furthermore included, the lamp ( 11) and / or the power electronics (12) is thermally coupled to the heat sink (100, 110, 120, 130, 140, 150).
    20/32
    200
    201
    21/32
    2/9
    210
    22/32
    ΙΟΊ
    100
    23/32
    121
    120
    24/32
    130
    Ί 40 /
    25/32
    6/9 rig. 4e
    26/32
    27/32
    150
    28/32
    29/32 ···· · · ···· ····· ···· • · · ♦ · · · ··
    ............... P14957
    Claims
    1. heat sink (100, 110, 120, 130, 140, 150) for cooling an electronic component of a vehicle headlight (10), the heat sink (100, 110, 120, 130, 140, 150) having a cooling structure, having a base (103, 123, 153, 203, 213, 223) on which at least two ribs (101, 111, 121, 131, 141) are arranged with has an outer contour that, viewed along an imaginary cutting plane running horizontally to the base (103, 123, 153, 203, 213, 223), follows a contour curve that can be described in at least one section by a contour function (350, 351, 352, 353), the heat sink (100, 110,
    120.130.140.150), characterized in that from a first superposition of a basic function (300,
    301,302, 303) and a basic function (310, 311, 312, 313) a basic course is formed, and the contour function (350,351,352,353) is formed from a second overlay of the basic course and an overlay function (330, 331,332, 333), the first overlay takes place by the function course of the basic function (300,
    301,302, 303) forms an axis of a curvilinear, preferably orthogonal coordinate system of the basic function (310,311,312,313), and the second superimposition takes place by the function course of the basic function (310,311, 312, 313) forming an axis of a curvilinear, preferably orthogonal coordinate system of the superimposing function (330, 331, 332,333), the basic function (300,301,302,303) having a rectilinear course, and the basic function (310, 311,312,313) having a rectilinear course, and the overlay function (330,331,332,333) having a triangular course.
    2. A heat sink (100, 110, 120, 130, 140, 150) for cooling an electronic component of a vehicle headlight (10), the heat sink (100, 110, 120, 130, 140, 150) having a cooling structure with an outer contour which, viewed along an imaginary cutting plane, follows a contour curve which in at least one section is performed by a contour function (350, 351, 352, 353). is writable, the heat sink (100, 110, 120,
    130.140.150) has a base (103, 123, 153, 203, 213, 223) on which at least two pins (152) are arranged, which are oriented essentially parallel to one another,
    30/32 [LAST CLAIMS]
    PI4957 characterized in that from a first superposition of a basic function (300,
    301, 302, 303) and a basic function (310, 311, 312, 313) a basic course is formed, and the contour function (350, 351, 352, 353) is formed from a second overlay of the basic course and an overlay function (330, 331, 332, 333) , the first superimposition taking place in that the function curve of the basic function (300,
    301,302, 303) forms an axis of a curvilinear, preferably orthogonal coordinate system of the basic function (310,311,312,313), and the second superimposition takes place by the function course of the basic function (310,311, 312,313) forming an axis of a curvilinear, preferably orthogonal, coordinate system of the superposition fiction (330,331, 332,333) forms, the basic function (300,301,302,303) having a rectilinear, circular or arc-like course, and the basic function (310, 311, 312,313) having a rectilinear or undulating course, and the overlay function (330, 331, 332, 333) having a undulating course .
    3. Heat sink (100, 110, 120, 130, 140, 150) according to one of the preceding claims, characterized in that the contour function (350, 351, 352, 353) two opposite sides of the outer contour of the heat sink (100, 110, 120, 130, 140, 150), preferably two opposite sides of the outer contour of ribs (101, 111, 121, 131, 141) or pins (152). of the heat sink (100, 110, 120, 130, 140, 150), describes which are spaced apart from one another (105, 115, 125, 155, 360, 361), and the overlay fiction (330, 331, 333, 333) has a periodic course with an overlay period length (340, 341, 342, 343), the overlay period length (340, 341, 342, 342, 342, 342, 342, 342, 342, 342) long, particularly preferably at most one third as long as the distance (105, 115, 125, 155, 360, 361).
    4. heat sink (100, 110, 120, 130, 140, 150) according to claim 2 or 3, characterized in that the basic function (310,311,312, 313) a periodic course with a basic period length (320, 321, 322,323) and the overlay function (330,331,332, 333) a periodic course with an overlay period length (340,341,342,343), the basic period length (320, 321, 322,323) at least preferably five times
    31/32 [LAST CLAIMS ^
    P14957 as long, particularly preferably ten times as long as the overlay period length (340,
    341, 342, 343).
    5. The heat sink (100, 110, 120, 130, 140, 150) according to one of claims 2 to 4, characterized in that the basic function (310, 311, 312, 313) and the overlay function (330, 331, 332, 333) each run differently, either in an undulating manner, the amount of undulating or triangular.
    6. Vehicle headlight (10), comprising a lamp (11) and / or power electronics (12) and an optical system (13), characterized in that a heat sink (100, 110, 120, 130, 140, 150) according to one of the preceding claims is furthermore included, the lamp ( 11) and / or the power electronics (12) is thermally coupled to the heat sink (100, 110, 120, 130, 140, 150).
    32/32 (LAST CLAIMS)
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    同族专利:
    公开号 | 公开日
    JP2020529132A|2020-10-01|
    US11085606B2|2021-08-10|
    EP3658818A1|2020-06-03|
    KR20200020840A|2020-02-26|
    KR20210002650U|2021-12-01|
    CN110914590A|2020-03-24|
    US20200232621A1|2020-07-23|
    AT520072B1|2019-01-15|
    WO2019018867A1|2019-01-31|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50631/2017A|AT520072B1|2017-07-28|2017-07-28|Heat sink and vehicle headlights|ATA50631/2017A| AT520072B1|2017-07-28|2017-07-28|Heat sink and vehicle headlights|
    US16/630,914| US11085606B2|2017-07-28|2018-07-16|Heat sink and vehicle headlight|
    KR1020207001637A| KR20200020840A|2017-07-28|2018-07-16|Heatsink and vehicle headlamp|
    CN201880050492.1A| CN110914590A|2017-07-28|2018-07-16|Cooling body and vehicle searchlight|
    KR2020217000075U| KR20210002650U|2017-07-28|2018-07-16|Heat sink and vehicle headlamp|
    JP2020504230A| JP2020529132A|2017-07-28|2018-07-16|Vehicle floodlight cooler|
    PCT/AT2018/060150| WO2019018867A1|2017-07-28|2018-07-16|Heat sink and vehicle headlight|
    EP18748851.5A| EP3658818A1|2017-07-28|2018-07-16|Heat sink and vehicle headlight|
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