Stator module and planar drive system
AssigneeBeckhoff Automation GmbH
InventorsLukas Bentfeld, Rolf Brinkmann, Tim Kaulmann
Life of this patent
Estimating the term…
Abstract
A stator module for electromagnetically driving a rotor in a planar drive system includes a stator plate, a power unit with at least one printed circuit board projecting downwards from a stator plate bottom side, a feedback board in which a feedback board passage grid is provided, and a box-shaped cooling unit with a heat conducting plate having a projecting circumferential surround. A heat conducting plate receiving grid is provided in the heat conducting plate.
Claims19
A stator module for electromagnetically driving a rotor in a planar drive system, the stator module comprising:
- a stator plate which comprises a coil conductor to which a drive current is applicable for generating a magnetic field driving the rotor via a stator plate top side,
- at least one stator plate connecting device arranged on a stator plate bottom side for feeding in the drive current, and
- a power unit which faces the stator plate bottom side and comprises at least one circuit board, the circuit board projecting downwards or vertically from the stator plate bottom side,
- wherein the circuit board comprises a drive current printed circuit board connecting device configured for electrical contact with the stator plate connecting device for drive current output, and a control signal printed circuit board connecting device configured for control signal input, and
- wherein said circuit board further comprises circuit board power devices configured for generating drive current based on input control signals and input power;
- a feedback board which comprises at least one sensor component configured for detecting the position of the rotor and a feedback communication device configured for generating control signals and processing data,
- wherein a feedback board passage grid is provided in the feedback board, and
- wherein the feedback board comprises at least one feedback board connecting device configured for data contact with the control signal printed circuit board connecting device, for control signal output;
- and
- a box-shaped cooling unit which comprises a heat conducting plate with a projecting circumferential surround and heat conducting structure elements on a heat conducting plate top side, a heat conducting plate receiving grid being provided in the heat conducting plate, the stator plate bottom side abutting on the projecting circumferential surround of the cooling unit,
- wherein a feedback board bottom side is arranged on the heat conducting plate top side and the heat conducting structure elements of the heat conducting plate engage through the feedback board passage grid and abut against the stator plate bottom side, and
- wherein the circuit board of the power unit engages at least partially through the feedback board passage grid and engages in the heat conducting plate receiving grid.
A stator module for electromagnetically driving a rotor in a planar drive system, comprising:
- a stator plate,
- a power unit, which comprises at least one printed circuit board projecting downwards from a stator plate bottom side,
- a feedback board, in which a feedback board passage grid is provided, and
- a box-shaped cooling unit, which comprises a heat conducting plate having a projecting circumferential surround,
- wherein a heat conducting plate receiving grid is provided in the heat conducting plate, and
- wherein the stator plate bottom side abuts on the projecting circumferential surround of the cooling unit.
A planar drive system comprising:
- a plurality of stator modules, and
- at least one rotor;
- wherein each stator module comprises:
- a stator plate,
- a power unit which comprises at least one printed circuit board projecting downwards from a stator plate bottom side,
- a feedback board in which a feedback board passage grid is provided, and
- a box-shaped cooling unit which comprises a heat conducting plate having a projecting circumferential surround;
- wherein a heat conducting plate receiving grid is provided in the heat conducting plate,
- wherein the stator plate bottom side abuts on the projecting circumferential surround of the cooling unit, and
- wherein the plurality of stator modules form a joint surface on which the rotor is moveable.
Dependencies are inferred from the claim text.