A hairpin type stator inspection apparatus is provided for testing performance of a stator wound with hairpin type stator coils. The hairpin type stator inspection apparatus includes: a conveyor provided on a frame for transferring the stator including a plurality of stator terminals along a predetermined path: a plurality of clamp terminals, which are installed to be movable to the frame by a driver in up and down, front and rear, and left and right directions in order to clamp the stator terminals: a controller that applies a driving control signal to the driver to change a position of the clamp terminals according to a position of the stator terminals; and an inspection portion that applies power to the stator terminals through the clamp terminals and inspects the electrical circuit of the stator.

The present application relates to an electric machine splitting or assembling method, an electric machine assembling method, and an electric machine splitting or assembling device including a sleeving device separating or coaxially sleeving first and second rotary bodies; the first disassembly device fixes the first rotary body and includes at least two first separable portions, and the first rotary body is split into petals in a circumferential direction by disassembling the first separable portions, or its respective petal segments are assembled in the circumferential direction by combining the first separable portions; and the second disassembly device is fixed to the second rotary body and includes at least two second separable portions, and the second rotary body is split into petals in the circumferential direction by disassembling the second separable portions, or its respective petal segments are assembled in the circumferential direction by combining the second separable portions.

A method for connecting lamination parts to form a lamination stack in which lamination parts are stamped out from an electrical strip that is coated with an activatable adhesive layer on at least one of its flat sides and the stamped-out lamination parts are stacked and glued to form lamination stacks, wherein before the lamination parts are stamped out, the electrical strip is embossed in a first sub-region, which produces multiple protruding spacers on at least one flat side of the electrical strip, which spacers, after a first lamination part is stamped out from this first sub-region, facilitate a detachment of the stacked and glued lamination parts into lamination stacks.

A rotor shaft for an electric machine includes a rotor shaft main body and a rotor shaft core which is arranged therein and which is connected to the rotor shaft main body. The rotor shaft comprises a substantially axially running cooling cavity configured to conduct a cooling fluid, and the rotor shaft core is composed of a different material than the rotor shaft main body.

A method to make a stator lamination of an axial flux motor for an automobile vehicle includes: constructing a stator having multiple stator stack members, including: providing a stator lamination with individual ones of the stator stack members; forming the stator lamination from a single lamination sheet of steel defining a sinuous-shaped assembly having multiple bends; compressing the stator lamination; and machining the stator lamination to create a first edge by removing a first portion of the multiple bends and to create a second edge opposite to the first edge by removing a second portion of the multiple bends.

A method to make a stator lamination of an axial flux motor for an automobile vehicle includes: constructing a stator having multiple stator stack members, including: providing a stator lamination with individual ones of the stator stack members; forming the stator lamination from a single lamination sheet of steel defining a sinuous-shaped assembly having multiple bends; compressing the stator lamination; and machining the stator lamination to create a first edge by removing a first portion of the multiple bends and to create a second edge opposite to the first edge by removing a second portion of the multiple bends.

The invention is directed to an apparatus (100) and a method for manufacturing a partial nest or a nest (5) of pin conductors (1, 1.sub.i, 1.sub.o) for forming a stator. The apparatus (100) comprises a stator core template (10) with a block body (11) and radially extending ribs (12) forming slots (13) there between for insertion of legs (2, 2.sub.i, 2.sub.o) of the pin conductors (1, 1.sub.i, 1.sub.o). The apparatus (100) comprises at least one ring element (25, 33, 42) being arranged to provide an outer radial abutment face for inserted pin conductors (1, 1.sub.i, 1.sub.o).

An electric machine including a housing assembly including a first end and a second end, a stator, a rotor, and a fan is provided. The housing assembly includes a terminal box positioned at the first end, an end plate coupled to the terminal box and including a plurality of inlet apertures, and a casing coupled to the end plate and extending toward the second end. The stator is fixedly secured to the housing assembly and positioned within the casing. The rotor is rotatably secured to the housing assembly and positioned within the casing such that the stator and the rotor are separated within the casing by an air gap. The fan is positioned inside the casing and is configured to draw air into the housing assembly through the plurality of inlet apertures.

An electric machine including a housing assembly including a first end and a second end, a stator, a rotor, and a fan is provided. The housing assembly includes a terminal box positioned at the first end, an end plate coupled to the terminal box and including a plurality of inlet apertures, and a casing coupled to the end plate and extending toward the second end. The stator is fixedly secured to the housing assembly and positioned within the casing. The rotor is rotatably secured to the housing assembly and positioned within the casing such that the stator and the rotor are separated within the casing by an air gap. The fan is positioned inside the casing and is configured to draw air into the housing assembly through the plurality of inlet apertures.

A repair method of a stator iron core which has a slot for accommodating a stator coil, and is formed by laminating silicon steel sheets. The method is implemented by moving a part of the silicon steel sheets which form the stator iron core while holding the stator coil in the slot to form a gap between the laminated silicon steel sheets of the stator iron core in the existence of a damaged part, and adding an insulation to the damaged part of the silicon steel sheet from the gap formed between the laminated silicon steel sheets to repair the damaged part of the silicon steel sheet.