US 12,464,688 B2
Modular power electronics system with electrically-conductive heatsink polarization
Yvan Avenas, Montbonnot Saint Martin (FR); Wendpanga Bikinga, Grenoble (FR); and Bachir Mezrag, Fontaine (FR)
Assigned to INSTITUT POLYTECHNIQUE DE GRENOBLE, Grenoble (FR); UNIVERSITE GRENOBLE ALPES, Saint Martin d'Heres (FR); and CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR)
Appl. No. 18/246,991
Filed by INSTITUT POLYTECHNIQUE DE GRENOBLE, Grenoble (FR); UNIVERSITE GRENOBLE ALPES, Saint Martin d'Heres (FR); and CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR)
PCT Filed Sep. 23, 2021, PCT No. PCT/EP2021/076243
§ 371(c)(1), (2) Date Mar. 28, 2023,
PCT Pub. No. WO2022/063921, PCT Pub. Date Mar. 31, 2022.
Claims priority of application No. 2009856 (FR), filed on Sep. 28, 2020.
Prior Publication US 2023/0413495 A1, Dec. 21, 2023
Int. Cl. H05K 7/20 (2006.01); H02M 7/00 (2006.01); H05K 9/00 (2006.01)
CPC H05K 7/209 (2013.01) [H02M 7/003 (2013.01); H05K 9/0024 (2013.01)] 32 Claims
OG exemplary drawing
 
1. A power electronic system comprising a plurality of power components and a plurality of electrically-conductive heatsinks, each of said power components being disposed between two electrically-conductive heatsinks of the plurality of electrically-conductive heatsinks, at least one electrically-conductive heatsink being configured to be polarised according to a phase potential, called phase heatsink, at least one electrically-conductive heatsink being configured to be polarised according to a +DC potential, called cathode heatsink, and at least one electrically-conductive heatsink configured to be polarised according to a −DC potential, called anode heatsink, wherein the system further comprises at least one external phase connection, and at least one external +DC connection, and at least one external −DC connection respectively connected to the phase heatsink, to the cathode heatsink and to the anode heatsink; wherein the power components and the electrically-conductive heatsinks are assembled so as to form elementary switching cells connected in parallel, each elementary switching cell comprising:
a first elementary power electronics module, called first elementary module,
a second elementary power electronics module, called second elementary module,
the first elementary module comprising:
an electrically-conductive heatsink configured to be polarised according to a-DC potential, called anode heatsink, and
an electrically-conductive heatsink configured to be polarised according to a phase potential, called first phase heatsink,
a first power component disposed between the anode heatsink and the first phase heatsink,
the second elementary module comprising:
an electrically-conductive heatsink configured to be polarised according to a +DC potential, called cathode heatsink,
an electrically-conductive heatsink configured to be polarised according to the phase potential, called second phase heatsink,
a second power component disposed between the cathode heatsink and the second phase heatsink,
said first and second elementary modules being adjacent according to a lateral connection direction and connected together by a conductive lateral electrical connection between the first and second phase heatsinks, and by a capacitive lateral electrical connection between the anode and cathode heatsinks.