Rotor of a dynamoelectric machine
First Claim
1. A rotor (4) of a dynamoelectric machine comprising a shaft (5), a cylindrical armature (6), an armature winding (7) and a drum commutator (8), which comprises an insulating support member (9) and conductor segments (10), which are attached thereto and anchored in the support member (9) by means of armature portions (17), and to which the winding wires (11) are attached in electrically conducting relationship, wherein:
- the winding wires (11) consist of aluminum;
the conductor segments (10) respectively have a running-surface region (18) consisting of copper and a terminal region (21) consisting of aluminum or a metal that can be welded to aluminum (aluminum-compatible metal);
the armature portions (17) consist completely of copper and are respectively part of a uniform copper structure (19) that also comprises the respective associated running-surface region (18);
the terminal region (21) comprises respectively a massive terminal lug (20), which projects radially relative to the brush running surface;
the conductor segments (10) are stamped out of a strand-like two-component profile (60), which was formed by durably joining a copper sub-profile (61) and an aluminum sub-profile (62);
the winding wires (11) are welded at the end to the terminal lug (20) of the respectively associated conductor segment (10), without being in direct contact with the running-surface regions (18); and
the terminal lugs (20) each respectively have a recess for receiving the end of at least one winding wire (11).
1 Assignment
0 Petitions
Accused Products
Abstract
A rotor of a dynamoelectric machine is provided, the rotor comprising a shaft, an essentially cylindrical armature, an armature coil comprising aluminum coil wires and a drum commutator, which comprises an insulating support body and conductor segments which are attached to said support body and fixed therein by means of armature sections. Said conductor segments each comprise a copper running surface area and a connection area made of aluminum or a metal which can be soldered with aluminum (aluminum-compatible metal) having a soldering tag which greatly projects over the brush running surface. Said coil wires are soldered to the end side to the soldering tag of the respectively associated conductor segments and to be precise, without directly contacting the areas of the running surface.
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Citations
7 Claims
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1. A rotor (4) of a dynamoelectric machine comprising a shaft (5), a cylindrical armature (6), an armature winding (7) and a drum commutator (8), which comprises an insulating support member (9) and conductor segments (10), which are attached thereto and anchored in the support member (9) by means of armature portions (17), and to which the winding wires (11) are attached in electrically conducting relationship, wherein:
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the winding wires (11) consist of aluminum; the conductor segments (10) respectively have a running-surface region (18) consisting of copper and a terminal region (21) consisting of aluminum or a metal that can be welded to aluminum (aluminum-compatible metal); the armature portions (17) consist completely of copper and are respectively part of a uniform copper structure (19) that also comprises the respective associated running-surface region (18); the terminal region (21) comprises respectively a massive terminal lug (20), which projects radially relative to the brush running surface; the conductor segments (10) are stamped out of a strand-like two-component profile (60), which was formed by durably joining a copper sub-profile (61) and an aluminum sub-profile (62); the winding wires (11) are welded at the end to the terminal lug (20) of the respectively associated conductor segment (10), without being in direct contact with the running-surface regions (18); and the terminal lugs (20) each respectively have a recess for receiving the end of at least one winding wire (11). - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification