US 11,751,320 B2
Automation field device
Christian Strittmatter, Rickenbach (DE); Simon Gerwig, Schopfheim (DE); and Andreas Fuz, Efringen-Kirchen (DE)
Assigned to Endress+Hauser SE+Co. KG, Maulburg (DE)
Appl. No. 17/626,873
Filed by Endress+Hauser SE+Co. KG, Maulburg (DE)
PCT Filed Jun. 18, 2020, PCT No. PCT/EP2020/066981
§ 371(c)(1), (2) Date Jan. 13, 2022,
PCT Pub. No. WO2021/008809, PCT Pub. Date Jan. 21, 2021.
Claims priority of application No. 10 2019 119 426.1 (DE), filed on Jul. 17, 2019.
Prior Publication US 2022/0330418 A1, Oct. 13, 2022
Int. Cl. H05K 1/02 (2006.01)
CPC H05K 1/0222 (2013.01) [H05K 1/0215 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An automation field device, comprising:
a housing surrounding an inner space and having a cross sectionally round, inner contour;
a sensor and/or actuator element arranged at the housing and configured to set and/or register a process variable; and
an electronic circuit arranged in the housing and configured to operate the sensor and/or actuator element, wherein the electronic circuit has at least one circuit board with a round, outer contour and a plurality of spring contacts in an edge region, wherein the inner contour of the housing and the outer contour of the first circuit board are so adapted to one another that the first circuit board is introducible into the housing with a main plane, in which it is embodied, lying orthogonally to a longitudinal axis, which extends through the inner space of the housing, and the spring contacts are so arranged on the first circuit board and embodied to hold at least the first circuit board in this position in the inner space and to produce an electrical connection between the first circuit board and the housing to drain away disturbance currents from the first circuit board via the spring contacts to the housing.