Class / Patent application number | Description | Number of patent applications / Date published |
310120210 | Coil structure | 37 |
20090174266 | ELECTRICAL MACHINE WITH A DAMPING WINDING - The aim of the invention is to reduce resonant overvoltages in electric motors. To achieve this, in an electric motor for an n-phase, symmetrical, electrical system comprising n working windings (Au, Av, Aw), which are assigned to the n phases (U, V, W) and are used to generate corresponding magnetic fluxes, a separate damper winding (Du, Dv, Dw) is allocated to each of the n working windings (Au, Av, Aw). The magnetic flux of the respective working winding flows through each damper winding. The n damper windings (Du, Dv, Dw) are connected in series and are short-circuited together. This permits the asymmetric parts of the system to be damped without affecting the working flux. | 07-09-2009 |
20090261664 | Linear Motor - In a linear motor ( | 10-22-2009 |
20100090546 | Electromagnetic moving system - An electromagnetic moving system comprises a flat stator, at least one moving body and at least one controller. The stator comprised of electrically connected flat coil windings spaced apart in a series way and forming a three phase stator. Each of the coil windings has a magnetic axis substantially perpendicular to the coil winding. The moving body comprises 4 permanent magnets placed in pairs. Each pair includes two alternatively pointed and spaced apart magnets. The magnetic axes of the permanent magnets substantially parallel to the magnetic axes of the coil windings such as to cause interaction with the stator when it is powered, thus creating a force tending to propel the body along the line connected the center points of the coil windings. | 04-15-2010 |
20100156200 | COIL FORMER FOR A LINEAR MOTOR STATOR FOR AN AUTOMATIC DOOR - A coil former for a linear motor stator for an automatic door having a coil arrangement, which, upon appropriate activation, is able to produce an interaction with a linear motor rotor, which causes thrust forces, with a body for the reception of a winding wire to form a coil, and at least one flange terminating the body at the front side, wherein the at least one flange of the coil former has at least one wire reception, which is able to receive a predetermined length of the winding wire and is able to, at least partially, release it again. | 06-24-2010 |
20100301685 | LINEAR MACHINE - Linear machine with a stator and a rotor, which are separated by an air gap and have at least one stator coil and/or one rotor coil respectively. The stator or rotor has a soft magnetic iron body with a stator back or rotor back, on which grooves are formed at a distance from each other, forming teeth. In the grooves, multiple conductor bars of the stator coil or rotor coil are arranged in rows. On the faces of the stator or rotor, end connectors which connect the conductor bars and extend over multiple grooves are present. Each conductor bar has a cavity on the face of at least one of its ends. Each end connector has an extension, which is arranged and dimensioned in such a way as to engage in an electrically conducting manner into the respective cavity of the conductor bar, on its section facing the respective front end of the conductor bars. | 12-02-2010 |
20100327671 | MOTOR CAPABLE OF GENERATING A DRIVING OUTPUT BASED ON A MAGNETIC FIELD - A motor includes a coil structure disposed between two magnetic plates opposite to each other in a first direction and permitting flow of a current therethrough via opposite current input and output ends. The coil structure includes: parallel magnetic and conductive strips extending in a second direction transverse to the first direction, arranged in a plane transverse to the magnetic plates, and isolated electrically and spatially from each other; and spaced apart non-magnetic and conductive bridging members each interconnecting electrically a corresponding adjacent pair of the strips when the current flows through the coil structure, the motor generates a Lorentz force in a third direction transverse to the first and second directions that is induced by the strips in response to the current flowing through the coil structure and the magnetic field and serves as a driving output of the motor. | 12-30-2010 |
20110169347 | LINEAR MOTOR AND PORTABLE DEVICE PROVIDED WITH LINEAR MOTOR - A linear motor whose thickness can be reduced is obtained. This linear motor ( | 07-14-2011 |
20120025634 | Electric Machine - An electrical machine is provided, comprising a stator ( | 02-02-2012 |
20120119593 | LINEAR ACTUATOR - A linear actuator displaces a relative position between a guide rail and a slide table, which is arranged in confronting relation to the guide rail. Projections are formed on opposite end sides of the guide rail, the projections extending along a direction of displacement and projecting toward the slide table. The slide table is disposed between the projections on the opposite end sides of the guide rail, with rigid balls being interposed therebetween. Guide grooves and guide grooves, which rollably support the balls, are provided on the projections on the opposite end sides of the guide rail and on the slide table. The guide grooves and the guide grooves apply, on the balls, a pressure caused by a magnetic attractive force of permanent magnets. | 05-17-2012 |
20130038144 | MODULAR STATOR FOR TUBULAR ELECTRIC LINEAR MOTOR AND METHOD OF MANUFACTURE - A modular design for and method of constructing long stators for tubular electric linear motors having many sets of coils. In certain embodiments, the stator is made by assembling a multiplicity of identical coil modules which are combined to form a stator of whatever length may be required. In some embodiments, coil modules containing the coils are connected by intermediate connectors. In those embodiments, the sum of the effective length of the coil module and the effective length of the intermediate connector must be an integral multiple of the pole pitch of the magnets in the motor's mover. In some embodiments, longitudinal grooves are formed in the coil modules to provide paths for coolant. | 02-14-2013 |
20130082544 | LINEAR MOTOR - Provided is a linear motor capable of preventing an increase in length of the armature in the moving direction and also of reducing cogging. The linear motor has a magnetic field part having a plurality of permanent magnets arranged in a straight line in such a manner that N poles and S poles are formed alternately; and an armature having a core which has a plurality of teeth arranged opposite to the magnetic field part with a gap created therebetween and a plurality of coils wound on the teeth of the core. Among the teeth with the coils wound around, a width TW | 04-04-2013 |
20140035394 | LINEAR TRANSVERSE FLUX ELECTRICAL MACHINE - The invention concerns a linear transverse flux electrical machine (TFEM) comprising a fixed portion; and a movable portion located in respect with the fixed portion, the movable portion including an alternate sequence of magnets and concentrators longitudinally disposed about a longitudinal axis thereof; the fixed portion including at least one phase, the at least one phase including a plurality of cores cooperating with a coil disposed about the longitudinal axis, each core including a skewed pair of poles to progressively electromagnetically engage an electromagnetic field of respective cooperating concentrators. The invention is also concerned with a plurality of elements located in desired positions in the TFEM and also with a rotatable TFEM. | 02-06-2014 |
20140042832 | SALIENT-POLE TYPE LINEAR MOTOR AND RECIPROCAL DOUBLE PISTON COMPRESSOR WITH SALIENT-POLE TYPE LINEAR MOTOR - A salient-pole type linear motor comprises a housing, a stator, a mover and coil units. The stator comprises a middle stator core and two side stator cores which have a plurality of magnetic poles on the inner peripheral surface of the stator. A plurality of coil units is wound around the plurality of magnetic poles. By generating a current that passes through the coil units sequentially, magnetic fields are produced about the magnetic poles and an attractive force is produced to enable a reciprocal motion of the mover by magnetic attraction. The salient-pole type linear motor further connects two compressor cylinders at both ends thereof for compressing gases or draining fluids so as to form a reciprocal double piston compressor with a salient-pole type linear motor. | 02-13-2014 |
20140152124 | COIL UNIT AND COIL ASSEMBLY FOR IRON-LESS LINEAR MOTOR - A coil unit and coil assembly for iron-less liar motor and the coil unit includes two vertical function sides and two axial non-function sides. The multiple units are alternatively connected to each other by inserting the vertical function side of one coil unit into the hollow portion of the adjacent coil unit so as to form a coil assembly. The width of the vertical function side is D1 and the distance between two respective insides of the two vertical function sides is D2. D2=m×D1+ΔL, wherein m representing the number of the vertical function sides of other coil units received in the vertical direction of the hollow portion. The ΔL is the width of the gap which receives a separation plate between the two adjacent vertical function sides to increase the efficiency of dissipating heat or insulation when current passes through the coil assembly. | 06-05-2014 |
20140265646 | PROPULSION DEVICE - A vehicle utilizing the force produced between two magnetic fields, a generated magnetic field and an existing magnetic field (such as the Earth's magnetic field). The magnetic fields are provided at an angle. The vehicle comprises a platform, a partially shielded tube with an interior containing an electrically charged fluid and a circulator operable to move the charged fluid around the tube thereby generating a vehicle magnetic field. The vehicle magnetic field is generated at an angle as compared to the external magnetic field, which produces a force as the cross product of the number of charges in the charged fluid times the velocity of the charges, and the strength of the external magnetic field. | 09-18-2014 |
20140300212 | MOTOR - The disclosure discloses a motor including a stator and a mover. The stator and the mover are arranged facing each other so as to be relatively movable via a magnetic air gap. Any one of the stator and the mover includes a yoke, a plurality of teeth, and a plurality of coils. The plurality of teeth are disposed protruding from the yoke to the magnetic air gap side. The plurality of coils are wound around the plurality of teeth. The plurality of coils include, for each phase, coil groups. Each of the coil groups includes a plurality of the coils. The coils are continuously arranged along the relative movement direction and are in-phase with each other and have the same wire diameter with each other. The coil group includes at least one the coil in which a coil width is larger than a teeth pitch. | 10-09-2014 |
20140339925 | Linear Motor System - A linear motor system includes a coil assembly, a movable magnet assembly, and a bearing assembly coupled to facilitate movement of one of the magnet assembly and the coil assembly with respect to the other. The bearing assembly includes a single bearing rail, wherein the single bearing rail is a separate component from the coil assembly and the magnet assembly and is mounted to the magnet assembly on a major face thereof opposite the major face thereof adjacent to which the coil assembly is disposed. The single bearing rail is narrower than the coil assembly and the magnet assembly. The single bearing rail includes a profiled rail configured to hold the magnet assembly on the coil assembly while allowing the magnet assembly to move along the coil assembly. | 11-20-2014 |
20150022031 | Electromagnetic Propulsion System - A system for propelling craft which is applicable in any environment. It employs an alternating magnetic field supplied by a coil. A parallel plate capacitor is situated so that the flux of the magnetic field flows between the plates of the capacitor. The capacitor is charged and discharged in synchronization with the alternating magnetic field. The changing magnetic field creates an electric field that applies a force to the charge in the plates which is then transferred to the body of the device. Any induced reactive electric force on the coil affects equally the protons and electrons in the wires of the coil creating the magnetic field, thus the force is non-reactive. At the same time, the changing electric field in the capacitor creates a magnetic field. The current in the coils and/or the surface current in the ferromagnetic material (if present) experiences a force from the magnetic field. The magnetic field created by these currents, however, has no free charge between the plates of the capacitor with which to react, thus this force is also non-reactive. The two forces are in opposite directions, but are not the same magnitude, thus the device is propelled in a single direction. | 01-22-2015 |
20150084442 | LINEAR MOTOR - A linear motor includes an excitation unit including a shaft and a plurality of permanent magnets located in the shaft, and an armature including a plurality of coils surrounding the excitation unit and a magnetic cover covering the coils. The plurality of coils of the same phase group are continuously wound over a plurality of insulative bobbins. A tap conductor, a jumper wire between the coils, and a terminal wire of the coils in different phase groups that are continuously wound are separately disposed in different corner portions in the magnetic cover, and the terminal wire of each phase is connected to a circuit board. | 03-26-2015 |
20150349619 | Linear Actuator - Embodiments described herein may take the form of an electromagnetic actuator that produces a haptic output during operation. Generally, an electromagnetic coil is wrapped around a central magnet array. A shaft passes through the central magnet array, such that the central array may move along the shaft when the proper force is applied. When a current passes through the electromagnetic coil, the coil generates a magnetic field. The coil is stationary with respect to a housing of the actuator, while the central magnet array may move along the shaft within the housing. Thus, excitation of the coil exerts a force on the central magnet array, which moves in response to that force. The direction of the current through the coil determines the direction of the magnetic field and thus the motion of the central magnet array. | 12-03-2015 |
20160111948 | FINE ELEMENT MAGNET ARRAY - A set of symmetrically segmented square prism Permanent Magnet (PM) halves in a 45-45-90 triangular prism and a rectangular square prism with predefined 45° stepped magnetizations are designed as Fine Elements (FEs), bringing finely adaptive mosaicking advantages for array arrangement. Optimized Halbach effect FE PM pole modules in cuboidal and isosceles trapezoidal prism shapes are invented to provide an augmented one-side-operating field. Simulation data show that typical dual layer FE PM arrays generate high-fidelity sinusoidal waveforms within air-gaps with peak field strengths of up to 1.2 Tesla. Featuring a pole width-to-thickness ratio ranging from 1 to 6, FE PM motor tracks with a series of scale, format, and sectional features are constructed in lightweight ferrous and/or nonferrous structures, which energize OEM and/or FE current carrying winding coils to implement linear and curvilinear motors with high power/force/torque density and low force ripple. | 04-21-2016 |
20160126821 | LINEAR ACTUATOR - Provided is a linear actuator whose entire length can be shortened while thrust thereof can be made large. The linear actuator of the present invention is provided with the following: a hollow drive magnet ( | 05-05-2016 |
20160172953 | Linear Actuator | 06-16-2016 |
20180026507 | Linear Motor | 01-25-2018 |
310120220 | Shape or spacing (e.g., multiple phase winding) | 11 |
20100007223 | IMPROVEMENTS IN ELECTROMAGNETIC MACHINES - An electromagnetic machine ( | 01-14-2010 |
20100026104 | SHORT STROKE LINEAR MOTOR - The invention relates to a short stroke linear motor. In order to improve the dynamics of such a short stroke linear motor, the primary part ( | 02-04-2010 |
20100127579 | Magnetically levitated transport system - A DC linear electric motor-generator has located at each edge of a curved triangular shaped linear ferromagnetic core, electro-magnets or solenoids interconnected in series or parallel as determined by user objectives, with each main solenoid coil hosted by each segment of the ferromagnetic core. | 05-27-2010 |
20100141054 | ELECTRIC LINEAR MOTOR - In the field of electrical linear motors, it is known to make more than one laminate core ( | 06-10-2010 |
20110198944 | CONDUCTOR ARRANGEMENT, METHOD FOR THE PRODUCTION THEREOF, AND USE OF A CONDUCTOR ARRANGEMENT - The invention relates to a conductor arrangement ( | 08-18-2011 |
20110227423 | COIL ASSEMBLY FOR LINEAR MOTOR - A coil assembly for a linear motor includes a coil unit which has multiple adjacently arranged coils, a base, and a resin encapsulated layer. The coils have two corresponding vertical action sides, a first non-action side, and a second non-action side. The coils further form multiple interlaced first bending sections on the first non-action side. Plural conducting wires disposed on the second non-action side could connect to an external cable on an end section of the coil unit. The base has a receiving slot thereon. The cross-section of the receiving slot corresponds in shape to that of the first bending sections for insertion of the coils. The resin encapsulated layer covering the coils and sealing the receiving slot of the base increases the contacting area between the coils and the inner wall of the receiving slot of the base to enhance the heat dissipation rate. | 09-22-2011 |
20130264893 | MULTI-PHASE STATOR DEVICE - Disclosed is a stator device adapted to be arranged in an electrical machine, where the electrical machine further includes a moving device, where the stator device is a multi-phase stator device, where the phases are arranged side-by-side in a direction perpendicular to direction of motion of the moving device, and where each phase comprises a first stator core section having a set of teeth, a second stator core section having a set of teeth, and a coil, and where the teeth are arranged to protrude towards the moving device; and wherein at least two neighboring phases share a stator core section, so that the first stator core section of a first phase and a second stator core section of a second phase is formed as a single unit. | 10-10-2013 |
20140132088 | Primary Part of an Ironless Linear Motor - A primary part of an ironless linear motor includes a cooling plate on which flat coils are disposed, each having a central opening. The coils are pressed onto the cooling plate by holding pieces which taper toward the cooling plate and engage in the openings in the coils. In this manner, an especially good contact is produced between the flat coils of the primary part and the cooling plate prior to encapsulating the primary part with a synthetic resin, the cooling effect of the preferably actively cooled cooling plate thereby being increased markedly. | 05-15-2014 |
20140312717 | IRONLESS MAGNETIC LINEAR MOTORS HAVING LEVITATING AND TRANSVERSAL FORCE CAPACITIES - A ironless magnetic motor ( | 10-23-2014 |
20160105087 | COIL AND METHOD OF MANUFACTURING COIL - A flat coil includes at least first and second coil layers having the shape of a ring and stacked, each of the first and second coil layers includes a pair of linear portions facing each other in a first direction and a pair of end portions facing each other in a second direction crossing the first direction, and the flat coil is bent on at least one of the end portions. The flat coil is an α-winding coil and is bent toward the first coil layer from the second coil layer. A first end face of the first coil layer in the second direction and a second end face of the second coil layer in the second direction are positioned on the same plane at the end portion to be bent. | 04-14-2016 |
20180026508 | LINEAR MOTOR | 01-25-2018 |
310120230 | Coating | 2 |
20110291496 | SEALED LINEAR MOTOR SYSTEM - A sealed linear motor system is provided. The sealed linear motor system includes a sealed coil assembly having a plurality of coil windings within a base plate and comprising covers disposed about the base plate and coil windings to prevent moisture and/or chemical ingress into the base plate and the coil windings. The sealed linear motor system also includes a sealed magnet assembly disposed adjacent to the coil assembly and comprising a plurality of magnets mounted on a magnet mounting plate and a magnet housing disposed on a surface of the magnet mounting plate to cover and seal the plurality of magnets within the housing. | 12-01-2011 |
20140346900 | Linear Motor System - A linear motor system includes a coil assembly and a magnet assembly disposed adjacent to the coil assembly. The coil assembly includes a plurality of coil windings and a sealing material to seal and to prevent moisture and/or chemical ingress into the coil windings. The magnet assembly includes a plurality of magnets, a magnet housing disposed to house, cover and seal the plurality of magnets within the magnet housing, a plate to cover the plurality of magnets, a sealing element disposed between the plate and the magnet housing to seal the magnet assembly, and a groove formed to receive the sealing element between the plate and the magnet housing. | 11-27-2014 |