Patent ID: 10490334

Abstract:
The invention relates to a coil former (1) for an electrical coil assembly (2), wherein the coil former (1) has a winding-holding region (3) for at least one peripheral segment of a coil winding (4), which winding-holding region (3) is bounded by a winding-holding region inner surface (5) for contact with an innermost winding layer (6) of the coil winding (4) and at least one first end piece (7) protruding from the winding-holding region inner surface (5). According to the invention, an at least partially surrounded fluid-holding reservoir (9) is arranged on a side of the first end piece (7) facing away from the winding-holding region (3), the fluid-holding reservoir (9) is connected to the winding-holding region (3) by a fluid passage opening (10), and the fluid passage opening (10) is arranged adjacent to the winding-holding region inner surface (5).