Linear motor
AssigneeKrauss-Maffei Aktiengesellschaft
InventorsMichael Sienz, Dietmar Stoiber, Gerd Schwarz
Life of this patent
Estimating the term…
Abstract
A linear motor includes a primary part which is cooled using a coolant circuit to remove heat loss caused in the current-carrying conductor windings so as to prevent excess operational temperatures in the linear motor. In order to allow the linear motor to be used in immediate proximity of a production machine without affecting operation thereof by interference occurring in the work zone and without affecting the work zone through heat released by the linear motor, the primary part is completely encapsulated by an enveloping casing in conjunction with a cooling plate through which coolant flows. The cooling plate represents the element by which the primary part is secured to the machine part to be moved of the production machine.
Claims18
A linear motor, comprising:
- a primary part including a core having a first surface and a second surface facing away from the first surface;
- a secondary part, said first surface of the core opposing the secondary part and formed with grooves therein for receiving single-phase or multi-phase rotor windings;
- a cooling plate having one side secured to a machine part to be moved by the linear motor and an opposite side secured to the second surface of the core, said cooling plate having passageways for circulating a coolant;
- and
- a protective casing secured to the cooling plate, said primary part being completely enveloped by the cooling plate and the protective casing.
Dependencies are inferred from the claim text.