Abstract: The present disclosure relates to a magnetic suspension motor (10) and a magnetic suspension blood pump. The magnetic suspension motor (10) comprises a stator assembly (11) and a rotor assembly (12) disposed above the stator assembly (11), with an axial gap (13) provided between the stator assembly (11) and the rotor assembly (12). The stator assembly (11) comprises a stator base (111), a plurality of stator teeth (112) distributed along a circumference of the stator base (111) and extending upward from an upper surface of the stator base (111), and a stator thrust body (114) arranged in an internal cavity enclosed by the plurality of stator teeth (112), wherein the stator teeth (112) are wound with stator coils (113). The rotor assembly (12) comprises a rotor ring (121), a rotor driving magnet (122) disposed on a lower surface of the rotor ring (121), and a rotor thrust magnet (124) disposed in an inner cavity of the rotor ring (121).

Abstract: The present disclosure relates to a motor for an extracorporeal blood pump, an extracorporeal blood pump, and an extracorporeal blood pump system. The motor for an extracorporeal blood pump comprises: a housing; an actuator located in the housing and used for driving an impeller in a pump head of the extracorporeal blood pump; at least one sensor located in the housing; and a motor driving-control assembly located in the housing and used to control operation of the motor. Integrating the motor driving-control assembly into the housing of the motor can significantly reduce the dependence of the motor on the control host of the extracorporeal blood pump, the risk of communication failure between the motor and the control host, and the risk of malfunction of the motor driving-control assembly, thereby greatly improving the safety and reliability of the extracorporeal blood pump.

Abstract: The present disclosure relates to a stiffness enhancing mechanism for a magnetic suspension bearing, a magnetic suspension bearing including the stiffness enhancing mechanism, and a blood pump. The magnetic suspension bearing comprises a stator with stator teeth and a rotor disposed within the stator. The stiffness enhancing mechanism comprises: a rotor permanent magnet, a stator permanent magnet, and an axial driving body. The rotor permanent magnet and the rotor of the magnetic suspension bearing form a rotor assembly, which has an asymmetric structure with respect to the main plane (P) of the rotor. The stiffness enhancing mechanism is configured such that the stator permanent magnet generates a radial attractive force to the rotor permanent magnet, and the axial driving body generates an axial repulsive force to the rotor permanent magnet, wherein the magnitude of the axial repulsive force is variable with a change of an axial distance between the axial driving body and the rotor permanent magnet).

Abstract: A filter for a power converter provided in-line with at least one live line of a power network. The filter has an input section with an input inductance provided at an input of the power converter and an output section with an output inductance provided at an output of the power converter. A neutral inductance provided between the power converter and a neutral line of the power network such that the neutral inductance is not in-line with the neutral line of the power network. The neutral inductance is shared by the input section and the output section.

Abstract: A filter for a power converter provided in-line with at least one live line of a power network. The filter has an input section with an input inductance provided at an input of the power converter and an output section with an output inductance provided at an output of the power converter. A neutral inductance provided between the power converter and a neutral line of the power network such that the neutral inductance is not in-line with the neutral line of the power network. The neutral inductance is shared by the input section and the output section.