Electric motor
AssigneeGrundfos Holding A/S
InventorPeter Fischer
Life of this patent
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Abstract
An electric motor includes a stator, a rotor and a can arranged between the stator and the rotor, wherein the stator exhibits several stator pole pairs, which are each formed by two adjacent stator poles, which are designed in such a way as to generate oppositely polarized magnetic fields, and wherein the rotor exhibits a plurality of magnetic rotor poles distributed over the circumference, and is configured in such a way as to enable a magnetic flux between two adjacent rotor poles, as well as a pumping set with such an electric motor.
Claims13
An electric motor comprising a stator (4), a circuit board (30) mounted on the stator (4), a rotor (8), and a can (6) arranged between the stator (4) and the rotor (8), wherein
- the stator (4) includes several stator pole pairs (26), which are each formed by two adjacent stator poles (20), which are configured to generate oppositely polarized magnetic fields, wherein the stator poles are designed as pole webs (20) with coils (24) arranged thereon, the coils (24) of two adjacent stator poles (20) forming a stator pole pair (26) are electrically connected in series, all coils (24) have the same design, the coils (24) are wired to one another via the circuit board, and the coils (24) have axially protruding contacts which engage corresponding contacts or conducting paths on the circuit board to form an electrical connection, and wherein
- the rotor (8) includes a plurality of magnetic rotor poles (34) distributed over a circumference of the rotor, and is configured to enable a magnetic flux between two adjacent rotor poles (34).
Dependencies are inferred from the claim text.