US 12,156,368 B2
Braking resistor arrangement in a computed tomography gantry
Florian Kiessling, Forchheim (DE); and Ulrich Kuehn, Baiersdorf (DE)
Assigned to SIEMENS HEALTHINEERS AG, Forchheim (DE)
Filed by Siemens Healthcare GmbH, Erlangen (DE)
Filed on Jun. 27, 2022, as Appl. No. 17/850,813.
Claims priority of application No. 10 2021 206 842.1 (DE), filed on Jun. 30, 2021.
Prior Publication US 2023/0007811 A1, Jan. 5, 2023
Int. Cl. H05K 7/20 (2006.01); A61B 6/00 (2006.01); A61B 6/03 (2006.01); H02P 3/06 (2006.01)
CPC H05K 7/20172 (2013.01) [A61B 6/035 (2013.01); A61B 6/4447 (2013.01); H02P 3/06 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A gantry for a computed tomography device, the gantry comprising:
a support structure;
a rotary bearing;
a rotating frame;
a first braking resistor configured to electromotively brake a rotational movement of the rotating frame;
a second braking resistor configured to electromotively brake the rotational movement of the rotating frame; and
a heat conductor configured to dissipate heat from the first braking resistor;
wherein the rotating frame is rotatably mounted about an axis of rotation relative to the support structure via the rotary bearing, and the rotating frame has a set of rotating frame components;
wherein the support structure has a fan configured to generate an airflow to cool the set of rotating frame components, and a pressure duct to guide the airflow along at least one flow path;
wherein the pressure duct has a pressure duct wall between the heat conductor and the airflow;
wherein the heat conductor and the pressure duct wall are interconnected to form a heat-conductor-to-pressure-duct-wall connection that is detachable, form-fitting, planar and thermally conductive;
wherein the heat is transferrable from the first braking resistor to the airflow via the heat conductor, the heat-conductor-to-pressure-duct-wall connection and the pressure duct wall;
wherein the first braking resistor has a housing;
wherein the heat conductor includes a first housing wall of the housing of the first braking resistor;
wherein the second braking resistor has a housing;
wherein the housing of the first braking resistor is between the pressure duct wall and the housing of the second braking resistor;
wherein the heat conductor includes a second housing wall of the housing of the first braking resistor and a first housing wall of the housing of the second braking resistor; and
wherein the second housing wall of the housing of the first braking resistor is attached to the first housing wall of the housing of the second braking resistor in a planar manner.