Abstract:
Embodiment of the present disclosure discloses an arrangement for conducting electric current between rotor windings and a slip-ring device (30) in a machine, comprising at least one set of conductive mechanisms each comprising: a conductive element (11) formed with a bar element; a first coupling element (12) adapted to electrically and mechanically couple a first end of the conductive element (11) to the slip -ring device (30); and a second coupling element adapted to electrically and mechanically couple a second end of the conductive element (11) to a rotor winding. This arrangement can conduct larger current, and is easy in manufacturing and mounting.
Abstract:
The heat exchanger comprises a housing (100) with two heat exchange units (160, 180) comprising air channels (161, 162, 181, 182) extending between side walls of the housing (100). The housing (100) comprises a middle section (170) situated between the heat exchange units (160, 180) and two end sections (150, 190) situated at opposite ends of the housing (100). A side duct (130, 140) with an upper compartment (131, 141 ) and a lower compartment (132, 142) is situated at each side of the housing (100). Each side duct (130, 140) comprises an inlet opening (135, 145) at a first end of the side duct (130, 140) in one of the compartments (131, 132, 141, 142) and an outlet opening (136, 146) at a second opposite end of the corresponding compartment (131, 132, 141, 142) in the opposite side duct (130, 140).
Abstract:
An electric machine can include a rotor and a stator having a stator core. The stator core is made of stator sheets (240) formed into stator sheet packages and comprises first radial air channels positioned between the stator sheet packages. Each stator sheet (240) comprises first interlocking means (260). Spacer elements (270) provided with second interlocking means (280) that coincide with the first interlocking means (260) are positioned between each stator sheet package. The first interlocking means (260) lock adjacent stator sheets in the stator sheet package together and the second interlocking means (280) transfer the locking between two adjacent stator sheet packages through the spacer elements (270) in order to achieve a rigid stator core.
Abstract:
The present invention relates to electric machines typically used for industrial applications, and more particularly to a method for manufacturing an end plate arrangement of a rotating electrical machine, to an end plate arrangement of a rotating electrical machine, and to a rotating electrical machine. A rotating electrical machine having an end plate arrangement according to the present invention has an end plate outer ring (19), (31), and an end plate assembly (22-24), (29), (34-36), so that said end plate assembly (22-24), (29), (34-36) comprises an end plate inner ring (23), (35), and an insulation ring (22), (29), (34); which end plate arrangement also comprises fastening elements (27-28), (39-40), which fastening elements (27-28), (39-40) fasten the end plate inner ring (23), (35) and the insulation ring (22), (29), (34) to the end plate outer ring (19), (31) or the end frame (19), (31) of the rotating electrical machine and which fastening elements (27-28), (39-40) are so arranged that as the thickness of insulation ring (22), (29), (34) reduces the fastening elements (27-28), (39-40) tighten respectively.