Patent application number | Description | Published |
20080211324 | LINEAR MOTOR - A linear motor comprising a stator core and/or a mover. The stator core of said linear motor comprising an inner perimeter, an outer perimeter essentially encircling the inner perimeter, a first and a second tooth being arranged along one of the inner perimeter or the outer perimeter, a slot for receiving a stator coil, said slot being a cavity arranged within the stator core, wherein said stator core is divided into a first stator part and a second stator part, said first stator part including the first tooth, being arranged to partially define the slot, and being made of soft magnetic powder, and said second stator part including the second tooth, being arranged to partially define the slot, and being made of soft magnetic powder. The mover of said linear motor comprising at least one section of soft magnetic material and at least one permanent magnet, the at least one section of soft magnetic material and the at least one permanent magnet being aligned in an axial direction of the mover, wherein a polarization vector of said at least one permanent magnet is directed axially. | 09-04-2008 |
20110025140 | PERMANENT MAGNET ROTOR WITH FLUX CONCENTRATING POLE PIECES - A permanent magnet machine is provided comprising a stator and a rotor, the rotor being adapted to rotate relative to the stator, the rotor comprising a plurality of permanent magnets separated in the circumferential direction from each other by axially extending rotor pole pieces for concentrating the magnetic flux from the permanent magnets, the stator having a structure that defines axial limits of an air gap between the stator and the rotor for communicating magnetic flux between the stator and the rotor, wherein that at least some of the permanent magnets extend axially outside the axial limits of the air gap as defined by the stator structure. | 02-03-2011 |
20110025141 | STATOR COMPACTED IN ONE PIECE - A compaction tool is provided for compacting an element from metal powder where the element has uniform axially displaced protrusions, and the tool comprises a die and a top and a bottom punch with punch surfaces. The top and bottom punch comprises displaceable opposing punch surfaces for displacing the metal powder there between before compacting the element. Additionally provided are a method for compacting an element from metal powder and an element made from such a method. | 02-03-2011 |
20110037329 | INTEGRATED ROTOR POLE PIECES - A pole piece structure is provided to be used as part of an active rotor structure for an electrical rotary machine, wherein the active rotor structure is circular comprising pole pieces and permanent magnets magnetised in the circumferential direction of the rotor structure, wherein the rotor pole piece structure is a single structure with at least two individually spaced pole pieces connected by an integration bridge. Further provided is a method of manufacturing a rotor pole piece structure and a rotor for an electrical machine with a rotor pole piece structure. The assembly of magnets to the pole pieces is significantly enhanced using these rotor pole piece structures as described. | 02-17-2011 |
20120299430 | ROTOR FOR MODULATED POLE MACHINE - A rotor for a modulated pole machine, the rotor being configured to generate a rotor magnetic field for interaction with a stator magnetic field of a stator of the modulated pole machine, wherein said rotor includes: a tubular support structure defining a circumferential mounting surface, the tubular support structure including a plurality of elongated recesses in the mounting surface, and a plurality of permanent magnets arranged at the mounting surface of the tubular support structure and magnetised in the circumferential direction of said rotor so as to generate the rotor magnetic field, the permanent magnets being separated from each other in the circumferential direction of the rotor by axially extending rotor pole sections for directing the rotor magnetic field generated by said permanent magnets in a radial direction, wherein at least one permanent magnet or one rotor pole section extends at least partly into one of the recesses. | 11-29-2012 |
20130057047 | BICYCLE MOTOR HUB - A hub electric motor unit for a motor-driven or motor-assisted vehicle, the vehicle comprising a frame, a wheel having a hub and a wheel rim connected to the hub by a plurality of spokes; the hub electric motor unit comprising a shaft connectable to the frame of the vehicle, a stator unit mounted on the hub shaft, a rotor disposed around and coaxially with the hub shaft; a hub shell rotatably mounted on the hub shaft, wherein the hub shell comprises two cap members axially disposed on respective sides of the rotor; wherein each cap member comprises a connecting part for connecting a respective subset of the spokes. | 03-07-2013 |
20130181551 | PERMANENT MAGNET ROTOR WITH FLUX CONCENTRATING POLE PIECES - A permanent magnet machine is provided including a stator and a rotor, the rotor being adapted to rotate relative to the stator, the rotor including a plurality of permanent magnets separated in the circumferential direction from each other by radially extending rotor pole pieces for concentrating the magnetic flux from the permanent magnets, the stator having a structure that defines radial limits of an air gap between the stator and the rotor for communicating magnetic flux between the stator and the rotor, wherein at least some of the permanent magnets extend radially outside the radial limits of the air gap as defined by the stator structure. | 07-18-2013 |
20130221789 | ROTOR FOR MODULATED POLE MACHINE - A rotor for an inner-rotor modulated pole machine, the rotor being configured to generate a rotor magnetic field for interaction with a stator magnetic field of a stator of the modulated pole machine, wherein said rotor is adapted to rotate around a longitudinal axis of the rotor; wherein the rotor comprises a plurality of permanent magnets arranged circumferentially around the longitudinal axis, each permanent magnet being magnetised in a direction of magnetisation so as to generate a magnetic flux; a plurality of axial flux guiding members each adapted to provide an at least two-dimensional flux path for the magnetic flux generated by a respective one of the plurality of permanent magnets; a support structure comprising an inner tubular support member arranged radially inward of the plurality of permanent magnets; and at least one outer flux guiding member adapted to provide a path in at least a radial direction. | 08-29-2013 |
20130328651 | INDUCTOR CORE - According to one aspect, there is provided an inductor core including: an axially extending core member, an axially extending external member at least partly surrounding the core member, thereby forming a space around the core member for accommodating a winding between the core member and the external member, a plate member presenting a radial extension and being provided with a through-hole, wherein the core member is arranged to extend into the through-hole, wherein the plate member is a separate member from the core member and the external member and is adapted to be assembled with the core member and the external member, wherein a magnetic flux path is formed which extends through the core member, the plate member and the external member. | 12-12-2013 |
Patent application number | Description | Published |
20100095737 | HAND TOOL WITH ANTI-SLIP DEVICE - The invention relates to a hand tool comprising handles and jaws, where the jaws are operated by the handles, and where an anti-slip device is arranged on the outer side of the distal end of a tool handle. The tool handle has a hard surface with low friction enabling the users fingers to slide on the surface of the handle when squeezing the handles together, and the anti-slip device is arranged to be supported against a support surface in order for the user to be able to press the tool handles together in a controlled manner using a force (F) in excess of hand force. | 04-22-2010 |
20120260481 | HAND OPERATED CRIMPING TOOL - A hand operated crimping tool comprising a body arranged between a distal end and a proximal end of the crimping tool, a tool head arranged distally on the crimping tool, and handles arranged proximally on the crimping tool, where at least one handle is pivotally arranged, and where the relative movement of the tool handles is connected to the relative movement of crimping dies, between which crimping dies at least one workpiece is arranged to be crimped. The tool head comprises a main head part and a pivotable head part, where the movement of the pivotally arranged handle(s) is connected to the movement of the pivotable head part via the body and a mechanism, whereby the pivotable head part of the tool head is movable between an open head position and a closed head position depending on the relative position of the tool handles. | 10-18-2012 |
20120260714 | HAND OPERATED CRIMPING TOOL - A hand operated crimping tool comprising a body arranged between a distal end and a proximal end of the crimping tool, a tool head arranged distally on the crimping tool, and handles arranged proximally on the crimping tool, where at least one handle is arranged pivotally to the body, and where the tool head is arranged axially slidable along the body. A distal crimping die is arranged at the tool head and a proximal crimping die is arranged at the body between which crimping dies a workpiece is to be crimped. The movement of the handles is connected to the movement of the tool head by a mechanism, whereby the tool head is movable between a distal non-crimping position and a proximal crimping position depending on the relative position of the tool handles. | 10-18-2012 |