An axial flux motor and a method for operating the same, in particular for driving at least one leaf element of a door, of a gate, of a window, of a person separation device and/or of a partition wall system, include a magnet unit and having a coil unit, with the magnet unit being designed so as to be rotatable about a rotational axis, and with a gap being designed between the magnet unit and the coil unit. An actuation unit is provided, with which the gap between the magnet unit and the coil unit is variable, in particular enlargeable.

An electrical contact device includes a high electric potential-side contact and a low electric potential-side contact having a lower electric potential than the high electric potential-side contact. The high electric potential-side contact and the low electric potential-side contact are configured to be brought into and out of contact with each other. At least one of the high electric potential-side contact and the low electric potential-side contact is formed of a low-boiling point material whose boiling point is lower than 2562° C. or a mixed material that contains the low-boiling point material.

An electrical contact device includes a high electric potential-side contact and a low electric potential-side contact having a lower electric potential than the high electric potential-side contact. The high electric potential-side contact and the low electric potential-side contact are configured to be brought into and out of contact with each other. At least one of the high electric potential-side contact and the low electric potential-side contact is formed of a low-boiling point material whose boiling point is lower than 2562° C. or a mixed material that contains the low-boiling point material.

A rotor assembly for a DC motor is provided which includes a rotor having a rotor shaft, a commutator mounted to the rotor shaft, and a varistor which is connected to the commutator via an electrically-conductive solderless fixing means, such as an electrically-conductive adhesive.

The present disclosure is related to providing a motor capable of removing electric noise sufficiently. The present disclosure is also related to providing a motor capable of handling cases where no choke coil is disposed. A motor comprising a choke coil, a terminal electrically connected to a lead wire led out from the choke coil, and a bracket including a first wall part, a second wall part and an elastic part located between the first wall part and the second wall part in an axial direction of the choke coil, in which the choke coil is located between the elastic part and the second wall part in the axial direction, the terminal is sandwiched between the first wall part and the elastic part in the axial direction and the lead wire is led out from the elastic part side to the first wall part side.

The present disclosure is related to providing a motor capable of removing electric noise sufficiently. The present disclosure is also related to providing a motor capable of handling cases where no choke coil is disposed. A motor comprising a choke coil, a terminal electrically connected to a lead wire led out from the choke coil, and a bracket including a first wall part, a second wall part and an elastic part located between the first wall part and the second wall part in an axial direction of the choke coil, in which the choke coil is located between the elastic part and the second wall part in the axial direction, the terminal is sandwiched between the first wall part and the elastic part in the axial direction and the lead wire is led out from the elastic part side to the first wall part side.

A rotor assembly for a DC motor is provided which includes a rotor having a rotor shaft, a commutator mounted to the rotor shaft, and a varistor which is connected to the commutator via an electrically-conductive solderless fixing means, such as an electrically-conductive adhesive.

An electrical contact device includes a high electric potential-side contact and a low electric potential-side contact having a lower electric potential than the high electric potential-side contact. The high electric potential-side contact and the low electric potential-side contact are configured to be brought into and out of contact with each other. At least one of the high electric potential-side contact and the low electric potential-side contact is formed of a low-boiling point material whose boiling point is lower than 2562 C. or a mixed material that contains the low-boiling point material.

An electrical contact device includes a high electric potential-side contact and a low electric potential-side contact having a lower electric potential than the high electric potential-side contact. The high electric potential-side contact and the low electric potential-side contact are configured to be brought into and out of contact with each other. At least one of the high electric potential-side contact and the low electric potential-side contact is formed of a low-boiling point material whose boiling point is lower than 2562 C. or a mixed material that contains the low-boiling point material.

An apparatus for assembling a permanent-magnet electric motor to be used particularly in pumping devices, which comprises a tubular element made of non-magnetic material, to be inserted and coupled in the axial cavity of a stator of an electric motor, and adapted to accommodate inside it a rotor of an electric motor.