WO2011023325A1 - Élément de refroidissement et procédé de fabrication d'un élément de refroidissement - Google Patents

Élément de refroidissement et procédé de fabrication d'un élément de refroidissement Download PDF

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Publication number
WO2011023325A1
WO2011023325A1 PCT/EP2010/005063 EP2010005063W WO2011023325A1 WO 2011023325 A1 WO2011023325 A1 WO 2011023325A1 EP 2010005063 W EP2010005063 W EP 2010005063W WO 2011023325 A1 WO2011023325 A1 WO 2011023325A1
Authority
WO
WIPO (PCT)
Prior art keywords
tab
cooling
base body
tabs
cooling element
Prior art date
Application number
PCT/EP2010/005063
Other languages
German (de)
English (en)
Inventor
Klaus Sieber
Peter Rauschenberger
Original Assignee
Hock Gmbh
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 Hock Gmbh filed Critical Hock Gmbh
Publication of WO2011023325A1 publication Critical patent/WO2011023325A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/06—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being attachable to the element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
    • H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
    • H01L21/4814—Conductive parts
    • H01L21/4871—Bases, plates or heatsinks
    • H01L21/4878—Mechanical treatment, e.g. deforming
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H01L23/367—Cooling facilitated by shape of device
    • H01L23/3672—Foil-like cooling fins or heat sinks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Definitions

  • the invention relates to a method for producing a cooling element and a cooling element which dissipates the heat generated by a component.
  • Cooling elements for dissipating heat to components are already widely known.
  • a cooling element is arranged on the back of an LED display, which is attached to the frame like the LED display.
  • Such a cooling element is at least partially flat on the LED display and thus performs the heat generated by the electrical component by heat conduction.
  • This cooling element has a plate-shaped base body, on which an integral number of cooling fins is formed.
  • Such a cooling element is manufactured as an aluminum injection molded part.
  • This cooling element has the advantage of a very good thermal conductivity.
  • the disadvantage is
  • the invention has the object to provide a method for producing a cooling element and a cooling element, which is simple in construction and inexpensive to manufacture.
  • the cooling element consisting of the base body and at least one tab with cooling fins is produced from a succession of steps by stamping and bending from a sheet metal part.
  • This has the advantage that in the production of the cooling element as a sheet metal part cost punching / bending processes can be used.
  • the handling for the production of such a cooling element is considerably simplified, since the at least one tab, which has cooling fins, is provided integrally on the base body, in order subsequently to be finished to a final product.
  • processing of a sheet metal stamped bent part made of connected and interconnected components is made possible.
  • a base body and at least one lug embracing the cooling fins are punched out of a metal sheet in a first punching process and a deformation section is formed between the base body and the lug.
  • This deformation section allows the tab to be integral with the body throughout the manufacturing process. process remains connected until the completion of the cooling element and that remain after punching the sheet metal stamped bent part, the components for the further process steps for easy handling with each other.
  • the contour of the cooling ribs in the tabs is punched during the punching of the tabs or in a subsequent punching step, wherein the cooling ribs are held by narrow connecting webs to edge strips of the tabs.
  • a further preferred working step for the production of the cooling element provides that the cooling ribs punched out in the tab are bent open relative to a tab plane, in particular in the opposite direction to the contact surface of the tab on the main body. It is provided that the tabs are bent along the connecting web or that the connecting webs are entangled during the bending process.
  • the cooling fins are bent out, for example, by 90 ° from the tab plane, so that they are aligned at right angles to the tab plane or to a contact surface of the tab on the base body.
  • the at least one lug with cooling fins is moved by a bending process along the deformation section onto a contact surface of the base body and transferred to the abutment on the base body.
  • the pivoting movement preferably takes place about a longitudinal extent of the deformation section, so that the tab which extends after punching in the same plane as the plate-shaped base body, for example, is pivoted through 180 ° in order to position it at least partially congruent to the contact surface of the base body.
  • the deformation section between the tab and the base body is used doing so as a kind of hinge or hinge to allow this folding process or bending by 180 °, so that the contact surface of the tab at least partially rests against the contact surface of the body or is aligned parallel to this.
  • the tab has at least one attachment point or a fastening section, by means of which the tab or the tabs with their abutment surface are held flush with the abutment surface of the main body.
  • attachment points or attachment portions may be formed as part of the abutment surface of the tab or separately formed but integrally connected to the abutment surface of the tab surface portions formed during the stamping process.
  • the tab, the attachment point or the attachment portion of the tab to the base body verclincht, caulked or connected by rivets.
  • the clinching also called clinching or caulking has the advantage that a positive connection between the tab and the body or the attachment point or attachment portion of the tab and the body can be created without additional components are required.
  • This step can be provided as a further process step after folding the tab to the body.
  • a riveting may be provided.
  • other joining techniques such as welding, soldering, folding, screwing or gluing can be used.
  • a further preferred embodiment of the method provides that in two or more tabs arranged on the base body, a folding order of the tabs is provided, the deformation sections being adapted in width as a function of the folding sequence.
  • the width of the deformation section is to be understood as meaning the distance between the lug and the base body, which is bridged by the deformation section.
  • the cooling ribs of the lowermost tab resting on the contact surface of the basic body engage in recesses in the tab located above.
  • This arrangement makes it possible, for example, for a plurality of tabs to be provided on the main body, which can all be arranged and stacked in parallel one above the other after folding them to the main body, so that a large number of cooling ribs can be formed in a row next to one another to prevent the discharge of To increase heat.
  • a first tab is held by the deformation section and at the opposite end of the first tab, a further deformation section for receiving a further tab is punched, so that the outer or further tab first is folded onto the adjacent inner tab and the at least two adjacent tabs are folded together on the body.
  • a plurality of tabs can be connected in series to each other by deformation sections, so that first the tabs to each other in a kind of
  • Winding process are folded to each other, then the Package the tabs together to bring in a final fold to the plant to the body.
  • both the successive folding of two or more tabs arranged on side edges of the main body as well as the folding of a multiple tab or a tab with a plurality of successively arranged in series to each other individual tabs can be done in any combination to the number of cooling fins and thus to increase the heat dissipation.
  • a cooling element for dissipating heat from a heat-generating component which comprises a plate-shaped base body and at least one voltage applied to an outer side of the body tab with at least one cooling fin, wherein the cooling fins from the outside of the body is oriented path-wise and the main body and the tab are integrally connected to each other via a deformation section, and the base body, the at least one tab with the at least one cooling fin and the respective connecting the tab to the base body deformation portion are formed from a piece of sheet metal.
  • Such cooling elements as Blechstanzbie- geteile have the advantage of high dimensional accuracy.
  • cooling elements allow their uniform heating an equally effective heat dissipation, as is the case with cooling elements as aluminum injection molded component.
  • cooling element according to the invention has the advantage that in the selection of various sheet metal materials and / or sheet thicknesses and / or surface treatments or coatings nevertheless a cost-effective production is given with a highly effective heat dissipation.
  • the tab is strip-shaped and is connected to the deformation section on an end face or longitudinal side of the base body.
  • the arrangement and connection of the tab to the main body via the deformation section can depend on the basic surface of the body and possibly further connection portions or mounting portions of the cooling element to be cooled component or a heat-generating component receiving frame may be provided.
  • one or more tabs with cooling fins can be arranged on one end face and / or one longitudinal side.
  • only one tab may be provided on one end face or on a neighboring longitudinal side.
  • the tab extends only partially or completely along the width of an end face or a longitudinal side of the main body.
  • the flap extends partially or completely in the folding direction to the base body after folding to the base body. Anaioges applies to the width of the flap transverse to the folding direction.
  • the tab arranged on the main body has at least one cooling rib which extends laterally at least in sections along a side edge of a contact surface of the tab and this is arranged projecting outwardly by a bending process.
  • This arrangement allows a flexible design of the cooling fin or cooling fins in size and geometry, which is limited only by the deformation portion to the side edge of the contact surface.
  • the contact surface is formed over the entire surface and rests against the base body. This can be done a very good heat dissipation, since the heat-generating component is at least partially applied to the plate-shaped base body of the cooling element, which in turn is the entire surface with the contact surface of the tab in conjunction to transfer the heat in the cooling fins. Due to the large surfaces in contact, the increased heat dissipation can take place.
  • a further advantageous embodiment of this embodiment provides that an attachment point or attachment portion of the tab is formed to the base body as part of the contact surface.
  • the surface pressure between the contact surface of the tab and the contact surface of the base body can be increased. This in turn increases the heat conduction.
  • the production of the cooling element can be further simplified and shortened in production time.
  • the tab is strip-shaped and has a plurality of consecutive recesses through which the contour of the cooling fins is formed.
  • This arrangement has the advantage that a plurality of successive, preferably formed with the same contour cooling rib can be formed on a tab.
  • the size and shape of the cooling fin are in proportion to the width and length of the tab.
  • cooling ribs arranged in the tab provides that these are formed on a connecting web between laterally, preferably parallel edge strips of the tab. This allows a simple production of the cooling ribs receiving tabs.
  • the cooling fins are either bent along the connecting web or placed with the connecting webs in a bending process, so that they preferably protrude by 90 ° relative to the plane of the tab or its contact surface on the base body.
  • the spacing of the cooling ribs in the tab is formed as a function of the at least one further folded tab, so that the cooling ribs have a uniform spacing from one another. This allows at the same time that a total of large free spaces are created between the cooling fins, so that a part of the contact surface of the body, which is not covered by the tabs, can be flowed around by cooling air.
  • an attachment point or an attachment section or at least at a plurality of tabs arranged on the base body and the outermost flap a fastening portion is provided which positions the tab or tabs to the base body by means of a positive connection.
  • the uppermost tab in order to simplify contacting of the individual tabs with respect to the contact surface of the base body, provision is made for the uppermost tab to comprise fastening sections.
  • a further preferred embodiment of the cooling element provides that a fastening portion is formed as part of the edge strip of the tab. This makes it possible for a very small volume of construction, in which the formation of mounting portions is not possible, yet a simple attachment and fixation of the tabs to the base body.
  • FIGS. 1 a and b show a schematic front and rear view of an electronic component with a cooling element
  • FIGS. 2a to d are schematic views for producing a first embodiment of a cooling element
  • FIGS. 3a to d are schematic views for producing an alternative cooling element to FIG. 2
  • Figure 5a to f are schematic views for producing a further alternative embodiment to Figure 2 and
  • FIG. 6a to f show schematic views for producing a further alternative embodiment to FIG. 2.
  • FIGS. 1 a and b show schematic views of an exemplary application for a cooling element 11 according to the invention.
  • the heat-generating or to be cooled component 12 is, for example, an electronic display, for example an LED display.
  • This component 12 is held in a mounting frame 14, which has not accessible from the visible side mounting receptacles 17 and mounting elements.
  • the cooling element 11 is fastened to the frame 14 on the rear side of the component 12.
  • the cooling element 11 is at least partially preferably over a large area or over the entire surface of the back of the component 12, to allow a good heat transfer and good heat dissipation.
  • Such components 12 are used for example in instrument panel components in motor vehicles.
  • other applications may be provided in which heat-generating devices, components or devices by heat removal via a contacted heat conduction.
  • the arrangement and positioning of the cooling element 11 on a frame 14 on the back of an electronic component 12 is only an example.
  • the cooling element 11 can also act directly on the component or be strengthened.
  • the cooling element 11, which will be described in more detail below be provided on other components than electrical components 12, which generate heat that must be dissipated for operational safety.
  • the cooling element 11 comprises a plate-shaped main body 21 and a tab 22, on which cooling ribs 23 are integrally formed.
  • This tab 22 is fixed via attachment points 26 to the main body 21. These arise, for example, when Verclinchen or caulking the tab 22 to the body 21.
  • individual fasteners 17 may be provided which, for example, with the component 12 and / or the frame 14 is a detachable or non-releasable latching / snap connection or Can enter clamp connection.
  • This cooling element 11 is formed of sheet metal as a stamped and bent component. It is provided that both the main body 21, the tab 22 and the cooling fins 23 consist of one part or form a coherent unit.
  • the outer contour of the cooling element 11 and the shape and size of the tabs 22 and / or the cooling fins 23 is only an example and to any applications.
  • FIGS. 1a and b The production of the cooling element 11 shown by way of example in FIGS. 1a and b will be described in more detail with reference to the following FIGS. 2a to d.
  • a punching process by which the outer contour of the cooling element 11 as shown in Figure 2a, punched as a sheet metal stamping part 30 becomes.
  • a punch bending process takes place, by means of which, for example, the contours for the fastening elements 24 are applied, as can be seen, for example, from the perspective view in FIG. 2d.
  • the introduction of the contours for the fastening elements can also take place in the last working step when clinching or caulking the flap 22 to the main body 21.
  • the sheet-metal stamped bent part 30 comprises the plate-shaped basic body 21, which connects a tab 22 and integrally formed cooling ribs 23 as well as a deformation section 31 which connects the tab 22 to the main body 12.
  • the cooling fins 23 are arranged along a side edge of a contact surface 31 of the tab 22.
  • the cooling ribs 23 are bent according to arrow B, so that they are arranged elevated with respect to the tab 22.
  • the bending direction is provided such that it is opposite to the contact surface 32 of the tab 22.
  • the contour of the fold or bend of the cooling fin 23 is arbitrary.
  • a bending operation shown in Figure 2c is provided according to arrow C by 180 °, so that the contact surface 32 of the tab 22 is transferred to rest on the contact surface 33 of the body 12. This folding operation is enabled by the deformation portion 31 by bending the tab 22 along the deformation portion 31.
  • the tab 22 After the tab 22 has been transferred to rest on the abutment surface 33 of the main body 21, the tab 22 is fixed via the attachment points 26 to the main body 21, so that a large-scale investment, in particular a full-surface conditioning or contacting the tab 22 is given to the base body 12 ,
  • a clinching or caulking can be performed, whereby these attachment points 26 are formed.
  • adhesive, solder, welded joints or the like may also be provided.
  • the length and width of the tab 22 is fundamentally arbitrary gestaltbar. It is preferably provided that the length of the tab or the contact surface 32 of the tab 22 extends over the entire width of the main body 21, so that the largest possible contact surface between the cooling fins 23 and the main body 21 is made possible to increase the heat conduction.
  • the tab 22 shown in FIG. 2a which has a narrow strip-shaped configuration and extends over the entire length of the main body 21, it can extend only partially over the length of the main body 21.
  • this tab 22 may extend over the entire width of the body 21 but only partially in relation to the length or completely.
  • the deformation portion 31 is provided in its width such that a bending of the tab by 180 ° is possible and at the same time the required base area of the main body 21 is maintained.
  • the width of the deformation portion 31, which forms the distance between the base body and the associated tab 22, is determined according to the bending radius due to the material thickness of the sheet.
  • this width of the deformation section 31 is designed as a function of the folding arrangement to be described later of a plurality of tabs 22, 22 '.
  • This deformation section 31 advantageously extends only partially over the width of the flap 22. This can be interrupted throughout but also partially.
  • the deformation portion 31 may comprise a plurality of individual webs or the deformation portion is formed quasi perforated, so that lower bending forces are required to perform the folding operation of a very wide tab 22. At the same time a weight saving can be achieved thereby.
  • FIGS. 3a to d show an alternative embodiment of the cooling element to FIGS. 2a to d.
  • This embodiment of the cooling element differs in that the cooling ribs 23 are formed differently and integrated on the tab 22.
  • the tab 22 is strip-shaped and extend within the outer geometry of the tab 22, the cooling fins 23.
  • the first punching step 36 for producing the sheet metal stamped bent part 30, that within the tab 22, the contour of the cooling ribs 23 is punched out by the introduction of recesses 39.
  • the cooling fins 23 are received on a connecting web 37, which extend between two edge strips 38, which limit the flap 22 laterally outwards and in the longitudinal direction.
  • the cooling fins 23 are bent out of a tab plane.
  • the cooling ribs 23 are bent around a bending edge adjacent to the deformation web 37.
  • the connecting web 37 can be rotated by 90 ° and communicate with the edge strips 38 via an entanglement.
  • the cooling fins 23 are bent downwards with respect to the plane of the drawing so that they are at right angles to the bottom.
  • FIGS. 3 c and d show a perspective view of the front and rear of the alternative cooling element 11.
  • the edge strip 38 is caulked to the base body 21 for fixing.
  • the cooling fins 23 preferably have a regular spacing from one another. These cooling ribs 23 are formed at right angles to the longitudinal extent of the strip. Alternatively, these cooling ribs 23 may also be provided rotated by 90 ° aligned with the tab 22 may be provided. In contrast to the embodiment according to the cooling element 11 to the figures 2a to d, a smaller contact surface 32 of the tab 22 is given to the main body 21 in this embodiment according to the figures 3a to d.
  • FIGS. 4a to d show individual method steps for producing a further alternative embodiment of a cooling element 11 according to FIGS. 4e and g.
  • This embodiment deviates from the embodiment according to FIGS. 3 c and d in that on the main body 21 two mutually opposite tabs 22 are respectively arranged on a side edge 27.
  • the number of cooling fins can be doubled.
  • the cooling element 11 is provided in analogy to Figure 3a that initially in a punching step 36, the contour of the body 21, the fasteners 24 and the contour of the tabs 22 and their respective connecting portions 31 and the contour of the cooling fins 23 through the recess 39 be punched out.
  • additionally arranged on the tabs 22 mounting portions 43 are punched out, by which the tab 22 are fixed to the main body 21.
  • the cooling fins 23 are bent. It is provided that the cooling ribs of the tab 22 and the cooling fins 23 of the tab 22 'are bent in opposite directions, so that the cooling fins 23 before the folding both in the show the same direction.
  • the tab 22 ' is first folded according to arrow C to the main body 21, so that it comes to bear against the abutment surface 33, as shown in FIG. 4c.
  • the folding of the flap 22 is performed, as shown according to arrow D in Figure 4d. After completion of the folding process, the two tabs 22 and 22 'are parallel to each other.
  • the spacing of the recesses 39 and their arrangement is chosen so that the cooling ribs 23, as shown for example in Figure 4e, have a regular distance from each other.
  • the tabs 22 and 22 ' can be arranged parallel to the contact surface 33 of the base body 21 and can assume a position according to Figure 4e, the respective deformation sections 31 are adapted and formed in accordance with the width.
  • the deformation portion 31 for the tab 22 must be made larger at least by the thickness of the tab 22 'to allow a concern of the tab 22 on the tab 22'.
  • FIGS. 4f and g a last working step for producing the cooling element 11 is shown.
  • the attachment of the tabs 22, 22 'to the base body 21 It can be provided that the attachment portion 43 is fixed by a positive connection to the base body 21 via the attachment point 26. This may in turn be provided a Verclinchen or caulking. The other alternative attachment options, such as rivets, welding, gluing or the like are possible.
  • 22 attachment points 26 are provided between the tab 22 'and the tab, as shown in Figure 4g. In this embodiment, shown in FIGS. 4f and 4g, the tab 22 'is thus held to the base body 21 via the fastening of the tab 22.
  • FIGS. 5a to c show the production steps for an alternative embodiment of a cooling element 11 according to FIGS. 5d and f.
  • This embodiment differs from the embodiment according to FIGS. 4 e and g or the production method according to FIGS. 4 a to 4 in that the one tab 22 is arranged on one side edge 27 and the further tab 22 is arranged on one longitudinal side 28 of the main body 21.
  • a folding order to comply is set after folding the flap 22 'to the base body 21 so that the flap 22' is fixed in addition to the base body 21 according to the position shown in FIG.
  • FIGS. 5a to c show the production steps for an alternative embodiment of a cooling element 11 according to FIGS. 5d and f.
  • This embodiment differs from the embodiment according to FIGS. 4 e and g or the production method according to FIGS. 4 a to 4 in that the one tab 22 is arranged on one side edge 27 and the further tab 22 is arranged on one longitudinal side 28 of the main body 21.
  • this is provided in such a way that the lug 22 'arranged over the deformation section 31 extending along the longitudinal side 28 is first moved toward the base body 21 and folded in accordance with the arrow C in FIG. 5b, in order subsequently to adjust the lug 22 in a further folding process Arrow D in Figure 5c or bending process for conditioning on the tab 22 'transfer. It is understood that the folding sequence can also be reversed, in which case again the deformation sections 31 are to be dimensioned accordingly. In the embodiment of the cooling element 11 shown in FIGS. 5 d to f, the deformation section 31 is thus provided with a longitudinal side and a narrow side of the base body 21.
  • a fixing portion 43 may be provided.
  • FIGS. 6a to e show further production steps for producing a cooling element 11 according to a further alternative embodiment in FIG. 6f.
  • a first processing step or punching step 36 again the main body 21, the fastening elements 24, the tabs 22 and 22 'and the cooling fins 23 are formed.
  • the tab 22 is held over a deformation section 31 extending along the longitudinal side 28 of the main body 21.
  • the second tab 22 ' is in contrast to the above embodiments not integrally attached to the main body 21, but in turn to the tab 22 via a further deformation section 31 '.
  • the cooling ribs of the tab 22 are bent by 90 ° down and the cooling ribs 23 of the tab 22 'opposite bent upwards.
  • the tab 22 'according to arrow C is folded to rest on the tab 22, as shown in Figure 6c.
  • the already once folded arrangement of the two tabs 22 and 22 'folded together about the deformation portion 31 as indicated by arrow D in Figure 6d so that the Aniage Structure 32 of the tab 22' comes to rest on the contact surface 33 of the body 21, as by is shown in Figure 6e.
  • the attachment points 26 can be set and, for example, the fasteners 24 are converted into the contour.
  • This alternative embodiment for producing the cooling element 11 according to FIG. 6f shows that the tabs 22 can be arranged both on the main body 21 and even on tabs 22 '.
  • An alternative embodiment, not shown, provides that on a side edge 27, the tab 22 is provided, as shown for example in Figure 5a.
  • a deformation section 31 ' is provided, which receives the tab 22'.
  • the tab 22 is connected via a deformation section extending along the end side.
  • a plurality of tabs 22, 22 'in the longitudinal direction are arranged one behind the other. The successive folding takes place analogously to FIGS. 6b to e.
  • any combination of the folding of the tabs 22, 22' can be provided as a function of their arrangement via the deformation sections 31, 31 '.

Abstract

L'invention concerne un procédé et un dispositif de fabrication d'un élément de refroidissement pour évacuer la chaleur produite d'un composant (12), l'élément de refroidissement comportant un corps de base (21) s'appuyant au moins partiellement de façon plane contre le composant (12) et présentant des rangées d'ailettes de refroidissement (23) faisant saillie de façon opposée au composant (12). L'élément de refroidissement composé du corps de base (21) et d'au moins une barre (22) pourvue d'ailettes de refroidissement (23) est fabriqué en plusieurs étapes consécutives par découpage et pliage d'une pièce de tôle.
PCT/EP2010/005063 2009-08-28 2010-08-18 Élément de refroidissement et procédé de fabrication d'un élément de refroidissement WO2011023325A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009039013.8 2009-08-28
DE102009039013A DE102009039013A1 (de) 2009-08-28 2009-08-28 Kühlelement sowie Verfahren zur Herstellung des Kühlelementes

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WO2011023325A1 true WO2011023325A1 (fr) 2011-03-03

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DE102021210414A1 (de) 2021-09-20 2023-03-23 Volkswagen Aktiengesellschaft Verfahren und System zur Regulierung eines Klimatisierungssystems eines Kraftfahrzeugs

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GB1150741A (en) * 1965-04-26 1969-04-30 Eric Imre Bardos Heat Sinks and Manufacture thereof
DD222454A1 (de) * 1984-01-25 1985-05-15 Dresden Elektroschaltgeraete Kuehleinrichtung zur verbesserung der waermeabgabe von elektronischen bauelementen
US4552206A (en) * 1983-01-17 1985-11-12 Aavid Engineering, Inc. Heat sinks for integrated circuit modules
EP1199749A1 (fr) * 2000-09-12 2002-04-24 Wen-Chen Wei Dissipateur de chaleur
US20070206357A1 (en) * 2004-05-05 2007-09-06 Siemens Ag Osterreich Arrangement for cooling SMD power components on a printed circuit board

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Publication number Priority date Publication date Assignee Title
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DE102021210414A1 (de) 2021-09-20 2023-03-23 Volkswagen Aktiengesellschaft Verfahren und System zur Regulierung eines Klimatisierungssystems eines Kraftfahrzeugs

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