(19)
(11) EP 2 708 810 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.05.2014 Bulletin 2014/19

(43) Date of publication A2:
19.03.2014 Bulletin 2014/12

(21) Application number: 13182216.5

(22) Date of filing: 29.08.2013
(51) International Patent Classification (IPC): 
F21V 29/00(2006.01)
 F21Y 101/02(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 12.09.2012 IT TO20120786

(71) Applicants:
  • OSRAM GmbH
    80807 München (DE)
  • OSRAM S.P.A. - SOCIETA' RIUNITE OSRAM EDISON CLERICI
    20126 Milano (IT)

    IT 

(72) Inventors:
  • Martini, Michele
    30038 Spinea, VE (IT)
  • Cacchione, Fabrizio
    30031 Dolo (IT)

   


(54) Method for assembling heat sinks and related tool


(57) A tubular secondary heat sink (22) is fitted onto a primary heat sink (10), with thermal interface material (20) placed in between. The secondary heat sink (22) is radially expanded and the primary heat sink (10) is inserted into the radially expanded secondary heat sink (22) with the thermal interface material (102) interposed between the primary heat sink (10) and the secondary heat sink (22). The subsequent radial contraction of the secondary heat sink (22) with the primary heat sink (10) inserted therein causes the thermal interface material (20) to be pressed between the primary heat sink (10) and the secondary heat sink (22).







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Search report