The present invention relates to fluid pump assemblies in general, and in exemplary embodiments to fluid pump assemblies that are magnetically supported in position, and to related kits and methods useful to circulate water in aquariums. The fluid pump assembly comprises an outer mount, an inner mount, and a pump. The outer mount includes at least one outer permanent magnet; the inner mount includes at least one inner permanent magnet; and the pump includes at least one soft magnetic material. The outer permanent magnet, the inner permanent magnet, and the soft magnetic material collectively form a magnetic circuit.

The present invention relates to fluid pump assemblies in general, and in exemplary embodiments to fluid pump assemblies that are magnetically supported in position, and to related kits and methods useful to circulate water in aquariums. The fluid pump assembly comprises an outer mount, an inner mount, and a pump. The outer mount includes at least one outer permanent magnet; the inner mount includes at least one inner permanent magnet; and the pump includes at least one soft magnetic material. The outer permanent magnet, the inner permanent magnet, and the soft magnetic material collectively form a magnetic circuit.

A shipping jig for an e-motor includes a central axis, an annular disk arranged for fixing to a cover of the e-motor, and a cylindrical portion extending axially from the annular disk and arranged for axially and radially positioning a rotor carrier of the e-motor relative to a stator of the e-motor. The annular disk includes a first plurality of holes distributed about a first bolt circle and a second plurality of holes distributed about a second bolt circle, smaller than the first bolt circle. The cylindrical portion may also be arranged for radially positioning a portion of a resolver relative to the stator. The first plurality of holes may each have a same third diameter and the second plurality of holes may each have a same fourth diameter, greater than the same third diameter.

A shipping jig for an e-motor includes a central axis, an annular disk arranged for fixing to a cover of the e-motor, and a cylindrical portion extending axially from the annular disk and arranged for axially and radially positioning a rotor carrier of the e-motor relative to a stator of the e-motor. The annular disk includes a first plurality of holes distributed about a first bolt circle and a second plurality of holes distributed about a second bolt circle, smaller than the first bolt circle. The cylindrical portion may also be arranged for radially positioning a portion of a resolver relative to the stator. The first plurality of holes may each have a same third diameter and the second plurality of holes may each have a same fourth diameter, greater than the same third diameter.

The present disclosure envisages an electromagnetic drive unit. The drive unit comprises a magnet having a north pole surface, a south pole surface, an operative top surface and an operative bottom surface. A coil having a pair of terminals is assembled on the magnet and hingeably coupled to the magnet, wherein a hingeable movement of the coil with respect to the magnet provides a reciprocating mechanical drive to the magnet. The hingeable movement of the coil is facilitated by providing an alternating supply to the pair of terminals of the coil. A hinge is provided on a base supporting the magnet for facilitating the pivotal movement of coil with respect to the magnet. A resilient band is provided adjacent the operative top surface of the magnet for securing the coil to the magnet.

The present disclosure envisages an electromagnetic drive unit. The drive unit comprises a magnet having a north pole surface, a south pole surface, an operative top surface and an operative bottom surface. A coil having a pair of terminals is assembled on the magnet and hingeably coupled to the magnet, wherein a hingeable movement of the coil with respect to the magnet provides a reciprocating mechanical drive to the magnet. The hingeable movement of the coil is facilitated by providing an alternating supply to the pair of terminals of the coil. A hinge is provided on a base supporting the magnet for facilitating the pivotal movement of coil with respect to the magnet. A resilient band is provided adjacent the operative top surface of the magnet for securing the coil to the magnet.

The present disclosure relates to a field of door/window hardware accessories, in particular to a door/window pulley, a pulley device, and a door/window. The present disclosure provides the bearing and the anti-deformation metal ring that can be in contact with the track, the anti-deformation metal ring use rigidity itself to effectively avoid generating indentation, and the door/window pulley is also difficult to be pressed to cause deformation. Moreover, the inner part of the injection molded body is filled between the bearing and the anti-deformation metal ring, which not only well transfers pressure bore by the anti-deformation metal ring when load-bearing to the bearing, but also restores the anti-deformation metal ring after slight deformation by giving an outward elastic support to the anti-deformation metal ring using elasticity of the injection molded body.

An energy conversion device may include a shaft including a first portion and a second portion wherein the first portion of the shaft is configured to rotate relative to the second portion of the shaft. A rotor may be coupled to the first portion of the shaft and a stator may be coupled to the second portion of the shaft. A first one-way bearing may be coupled to the first portion of the shaft and configured to transfer rotational input to the first portion of the shaft in a first direction. A second one-way bearing may be coupled to the second portion of the shaft and configured to transfer rotational input to the second portion of the shaft in a second direction opposite the first direction.

A motor includes a rotor, a stator that surrounds the radial outer side of the rotor, a housing that contains the rotor and the stator, a holder axially above the stator, a substrate fixed to the axial upper side of the holder, and a connector radially outward of the housing and electrically connected to the substrate. The holder includes a holder body, and a holder protrusion that connects to the holder body and extends radially outward from the housing. The connector contacts the underside of the holder protrusion.

A motor includes a rotor, a stator that surrounds the radial outer side of the rotor, a housing that contains the rotor and the stator, a holder axially above the stator, a substrate fixed to the axial upper side of the holder, and a connector radially outward of the housing and electrically connected to the substrate. The holder includes a holder body, and a holder protrusion that connects to the holder body and extends radially outward from the housing. The connector contacts the underside of the holder protrusion.