# US 9,521,781 B2 · Power component device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,521,781 B2 - Document ID: US9521781B2 - Status: Granted - Kind: B2 - Application number: 14/104,913 - Filed: 2013-12-12 - Published: 2014-06-26 - Granted: 2016-12-13 - Earliest claimed: 2012-12-12 - Assignees: Semikron Elektronik GmbH & Co. KG - Applicants: Thomas Frank; Bernhard Kalkmann; Liane Müller-Schmidt; Sven Teuber - Inventors: Thomas Frank; Bernhard Kalkmann; Liane Müller-Schmidt; Sven Teuber - Web page: https://patentgrep.com/patent/US9521781B2 ## CPC - H05K 7/2039: {characterised by the heat transfer by conduction from the heat generating element to a dissipating body (arrangements for increasing/decreasing heat-transfer, e.g. fins details, F28F13/00)} - H01F 27/06: Mounting, supporting, or suspending transformers, reactors, or choke coils {not being of the signal type} - H01F 27/22: Cooling by heat conduction through solid or powdered fillings - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES ## Abstract A power component device includes a heat sink having a recess with a base surface and a first side surface. The first side surface of the recess is at a generally acute angle relative to the base surface. The power component device includes a first passive electrical component with a support element, having a first side surface which faces the first side surface of the recess, and is at generally the same angle relative to the base surface as the first side surface of the recess is relative to the base surface. A pressure transmission element has a first side surface which is averted from the first side surface of the support element. The base surface is at a generally acute angle relative to the first pressure transmission element side surface. A pressure generating apparatus presses the support element against the first side surface of the recess. ## Claims ### Claim 1 A power component device comprising: a heat sink having a recess, wherein said recess includes a base surface and a first side surface which is at an angle (α) relative to said base surface of less than about 90°; a first passive electrical component having a support element arranged on said base surface, and to insert said support element having a first side surface facing said first side surface of said recess, and which is at substantially the same angle (α) relative to said base surface as said first side surface of said recess relative to said base surface; a pressure transmission element arranged on said base surface having a first pressure transmission element side surface which is averted from said first side surface of said support element, wherein said base surface is at an angle (γ) relative to said first pressure transmission element side surface of less than about 90°; and a pressure generating apparatus capable of exerting a force (F) onto said first pressure transmission element side surface, to press said support element against said first side surface of said recess. ### Claim 2 (depends on 1) The power component device of claim 1, wherein said support element includes a second side surface which is arranged opposite to said pressure transmission element, and which is averted from said first side surface of said support element. ### Claim 3 (depends on 2) The power component device of claim 2, wherein said pressure transmission element includes a second pressure transmission element side surface which second pressure transmission element side surface faces the same side of said second side surface of said support element, as said base surface relative to said second side surface of said support element; wherein said base surface is at an angle (δ) relative to said second side surface of said support element of less than about 90°, and said base surface is at the same angle (δ) relative to said second pressure transmission element side surface. ### Claim 4 (depends on 1) The power component device of claim 1, wherein said pressure transmission element is integrally formed with said support element. ### Claim 5 (depends on 1) The power component device of claim 1, wherein said recess has a second side surface, which faces said first side surface of said recess and forms a side surface of a first side wall of said heat sink; and wherein said first side wall of said heat sink absorbs a force which opposes the force (F) which the pressure generating apparatus exerts on said first pressure transmission element side surface. ### Claim 6 (depends on 1) The power component device of claim 1, wherein said first passive electrical component is in the form of a transformer with a magnetically permeable core and the support element is in the form of the magnetically permeable core of the transformer. ### Claim 7 (depends on 1) The power component device of claim 1, wherein said first passive electrical component is in the form of a choke with a magnetically permeable core and the support element is in the form of the magnetically permeable core of the choke. ### Claim 8 (depends on 1) The power component device of claim 1, wherein said first passive electrical component is in the form of an electrical resistor and the support element is in the form of the housing of the electrical resistor. ### Claim 9 (depends on 1) The power component device of claim 1, wherein said first passive electrical component is in the form of a capacitor and the support element is in the form of the housing of the capacitor. ### Claim 10 (depends on 1) The power component device of one claim 1, further comprising a first thermally conductive layer arranged between said support element and said base surface, and a second thermally conductive layer arranged between said support element and said first side surface of said recess. ### Claim 11 (depends on 10) The power component device of claim 10, wherein the thicknesses of said first and second layer are different and/or the material from which the first and the second thermally conductive layer is composed is different. ### Claim 12 (depends on 10) The power component device of claim 10, wherein said first and said second thermally conductive layers are composed of different materials. ### Claim 13 (depends on 1) The power component device of claim 1, further comprising a second passive electrical component with a support element, wherein said support element of said second passive electrical component is arranged in the same form as said support element of said first passive electrical component in said recess of said heat sink and is connected to said heat sink. ### Claim 14 (depends on 13) The power component device of claim 13, wherein said second passive electrical component is in the form of a transformer with a magnetically permeable core and said support element of said second passive electrical component is in the form of said magnetically permeable core of said transformer. ### Claim 15 (depends on 13) The power component device of claim 13, wherein said second passive electrical component is in the form of a choke with a magnetically permeable core and said support element of said second passive electrical component is in the form of the magnetically permeable core of the choke. ### Claim 16 (depends on 13) The power component device of claim 13, wherein said second passive electrical component is in the form of an electrical resistor and said support element of said second passive electrical component is in the form of a housing of said electrical resistor. ### Claim 17 (depends on 13) The power component device of claim 13, wherein said second passive electrical component is in the form of a capacitor and said support element of said second passive electrical component is in the form of said housing of said capacitor.