US 12,356,574 B2
Explosion-proof housing for a power electronics device
Steffen Müller, Kassel (DE); and Waissi Tello, Kassel (DE)
Assigned to SMA Solar Technology AG, Niestetal (DE)
Filed by SMA Solar Technology AG, Niestetal (DE)
Filed on Jan. 27, 2023, as Appl. No. 18/160,422.
Application 18/160,422 is a continuation of application No. PCT/EP2021/070851, filed on Jul. 26, 2021.
Claims priority of application No. 10 2020 119 779.9 (DE), filed on Jul. 27, 2020.
Prior Publication US 2023/0171912 A1, Jun. 1, 2023
Int. Cl. H05K 7/14 (2006.01)
CPC H05K 7/1432 (2013.01) 16 Claims
OG exemplary drawing
 
1. A housing for a power electronics device, comprising,
a tray configured to receive power electronics components;
a cover configured to fit on the tray to form a closed housing,
wherein the cover is fixed on the tray through a plurality of fixing screws,
at least one opening element formed by a fixing screw of at least one of the plurality of fixing screws,
wherein each at least one opening element is guided via a sleeve with deformation structures, the sleeve being arranged between a screw head of a respective fixing screw and the housing such that a pressing force is exerted through the screw head of the fixing screw between the cover and the tray via the sleeve, wherein the fixing screw and the sleeve comprise a braking element of the opening element,
wherein the deformation structures are configured such that, under an effect of an explosion force exceeding the pressing force, the sleeve is compressed in a manner defined through the deformation structures such that a gap of a predefined width is formed between the cover and the tray,
wherein the tray has a shaping structure on which the sleeve is fitted and which is configured to determine a deformation of the sleeve under an action of the explosion force.