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Nidec Motor Corporation patents


Recent patent applications related to Nidec Motor Corporation. Nidec Motor Corporation is listed as an Agent/Assignee. Note: Nidec Motor Corporation may have other listings under different names/spellings. We're not affiliated with Nidec Motor Corporation, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "N" | Nidec Motor Corporation-related inventors


A ring magnet unit for an electric motor

A ring magnet unit for an electric motor is provided, comprising a circular magnet holder and at least two magnet segments fixed to the magnet holder and arranged in a circumferential direction of the magnet holder, wherein respective one magnet segment has a first surface abutting to a surface of the magnet holder and a second surface which is the opposite surface of the first surface. Both side surfaces of the first surface and the second surface are chamfered in the directions that cross the radial direction of the magnet holder at the same angles. ... Nidec Motor Corporation

Motor controller can with synthetic housing and metal heat sink

An electric motor including a rotor, a stator, a motor housing having a controller can, and a controller having an electronic component disposed within the controller can. The controller can includes an insert comprising thermally conductive metal for exchanging heat with an external heat sink space.. ... Nidec Motor Corporation

Rotary switch

Rotary switches and associated methods. A rotary switch can include one or more arcuate passages which are prone to ingress of particulate or liquid contaminants. ... Nidec Motor Corporation

Directional antenna for wireless motor connection

An antenna assembly comprises a substrate, an impedance matching network, and a driven antenna element. The substrate includes an insulating layer and a first electrically conductive layer disposed on a top surface of the insulating layer. ... Nidec Motor Corporation

Packaging a printed circuit board having a plurality of semiconductors in an inverter

An electrical device configuration enables heat to be dissipated from a multi-layer printed circuit board (pcb) while handling electrical currents in excess of 200 amps. The semiconductor devices that convert input dc current to output ac current are mounted to a side of the pcb that is opposite the side of the pcb that receives the input dc current. ... Nidec Motor Corporation

Direct drive rotor with metal coupler

A rotor for an outer rotor-type motor is provided. The rotor includes a metallic coupler and a polymeric frame molded over at least part of the metallic coupler.. ... Nidec Motor Corporation

Device and a method for distributing torque in a worm gear assembly

A worm gear assembly may include an input shaft having a first and second screw formed axially thereon, a first torque transfer unit comprising a first worm wheel operatively coupled to the first worm screw, a first radial pinion coaxially affixed to the first worm wheel, and a first axial crown wheel operatively coupled to the first radial pinion, and a second torque transfer unit comprising a second worm wheel operatively coupled to the second worm screw, a second radial pinion coaxially affixed to the second worm wheel, and a second axial crown wheel operatively coupled to the second radial pinion, wherein the first radial pinion is in meshed interface with the second radial pinion, and wherein torque differences between the first axial crown wheel and the second axial crown wheel are transmitted at least in part through said meshed interface.. . ... Nidec Motor Corporation

System and method for optimizing flux regulation in electric motors

A system and method for dynamically optimizing flux levels in electric motors based on estimated torque. Motor parameters and motor equations are used to estimate operating characteristics and to set current and voltage limits which define an optimal flux operating range for a given speed and torque of the motor. ... Nidec Motor Corporation

Insulative insert for motor controller can

A motor assembly includes a motor, a controller for controlling at least one aspect of operation of the motor, a housing, and an insulation system. The housing defines a motor chamber at least substantially receiving the motor and a controller chamber at least substantially receiving the controller. ... Nidec Motor Corporation

High power density motor having bridged spoked rotor and prewound bobbins for stator

A motor includes a stator and a rotor. The rotor is rotatable about an axis. ... Nidec Motor Corporation

System and method for improving the operation of electronically controlled motors

An electrical motor controller changes the pwm frequency that is used by a motor driver to form the fundamental frequency and voltage magnitude for the electrical power delivered to an electrical motor. The electrical motor controller compares a signal generated by a first sensor that indicates an output speed of the motor to a predetermined speed threshold and compares a signal generated by a second sensor that corresponds to phase currents in the electrical motor to a predetermined motor power threshold. ... Nidec Motor Corporation

Sensorless motor braking system

An electric motor control system includes a power inverter and control circuitry configured to control the power inverter either according to a target voltage in a voltage-based control mode or according to a target current in a current-based control mode. A controller is operable to switch operation of the control circuitry between the voltage-based control mode and the current-based control mode. ... Nidec Motor Corporation

Battery charger monitor with charge balancing between batteries in a battery supply

A battery charger monitors the voltages across individual batteries in a battery system during recharging of the batteries. The charger identifies a least voltage measurement and identifies the batteries in the battery system that have a voltage measurement that is a predetermined voltage differential above the least voltage measurement. ... Nidec Motor Corporation

Vehicle indicator circuit having controlled backlighting

Indicator circuit having a backlight and an indicator light associated with a graphical element. The graphical element is adapted to be illuminated by the indicator light for indicating an active vehicle function as well as backlit by the backlight. ... Nidec Motor Corporation

11/16/17 / #20170331412

System and method for detecting loss of input phase by sensing before power rectifier

A system for detecting a decrease in or loss of an input phase to a motor. A power rectifier rectifies and combines three input voltages to produce an output voltage to power the motor. ... Nidec Motor Corporation

11/09/17 / #20170321783

Traction motor assembly with gear-interconnected wheel and output shaft

Electric motors are disclosed. The motors are preferably for use in an automated vehicle, although any one or more of a variety of motor uses are suitable. ... Nidec Motor Corporation

10/05/17 / #20170288486

Spoked rotor for an electric motor

A rotor is provided for use in an electric motor. The rotor includes a shaft assembly rotatable about an axis. ... Nidec Motor Corporation

10/05/17 / #20170288485

Spoked rotor with tapered pole segments

A rotor includes a plurality of arcuately arranged magnets and a core including a plurality of arcuately arranged pole segments alternating with the magnets, such that each of the magnets is at least in part interposed between adjacent pole segments. The pole segments at least in part cooperatively present an annular core face at least in part defining a core envelope. ... Nidec Motor Corporation

10/05/17 / #20170288484

Spoked rotor with inner structural bridges providing low flux leakage

A rotor is provided for use in an electric motor. The rotor is rotatable about an axis. ... Nidec Motor Corporation

10/05/17 / #20170284013

Electronically controlled switch for an electric motor

A system in which the operation of an electric motor is controlled by electronically controlled switches. The system includes the motor having a run winding and a start winding, a heating component, and a motor control subsystem. ... Nidec Motor Corporation

09/21/17 / #20170271964

Blower motor for hvac systems

A blower motor assembly having a variable speed motor that is suitable for replacing a psc motor in a residential hvac (heating, ventilation, and air conditioning) system. The blower motor assembly includes a variable speed motor and motor controller; a first power input for receiving a plurality of ac power signals from a control device for use in determining an operating parameter for the motor; and a second power input for receiving ac power from an ac power source for powering the motor controller even when no ac power signals are received by the first power input.. ... Nidec Motor Corporation

09/07/17 / #20170257013

Squirrel cage rotor with copper filled plastic bars and rings

A rotating element for a dynamo-electric machine such as an electric induction motor. The rotating element includes a plurality of axially stacked laminations cooperatively defining a plurality of arcuately spaced bar slots. ... Nidec Motor Corporation

08/17/17 / #20170237314

Motor assembly with compact gear drive

An electric motor assembly includes a rotor, a stator, and a gear assembly. The gear assembly includes a drive gear, a ring gear, and an intermediate gear disposed between and engaging each of the drive gear and the ring gear. ... Nidec Motor Corporation

07/20/17 / #20170207681

Forced air cooling of vacuum motor control

A motor assembly is provided for powering a blower operable to generate fluid flow. The motor assembly includes a motor, a controller assembly, and a flow director. ... Nidec Motor Corporation

07/20/17 / #20170207672

Rotor magnet retention ring

A motor assembly is provided for powering a blower operable to generate fluid flow. The motor assembly includes a motor, a controller assembly, and a flow director. ... Nidec Motor Corporation

07/13/17 / #20170201161

Motor programming tool

A tool for programming a controller of an electric motor by engaging a connection block of the motor and providing high voltage power and communicating programming signals to the controller. The tool includes a body having an interface for engaging the connection block, and internal wiring presenting tool terminals at the interface for making contact with corresponding motor terminals to allow for providing power and communicating signals between the tool and the controller. ... Nidec Motor Corporation

06/22/17 / #20170179792

Enclosed motor utilizing recirculating coolant air

An electric motor includes a housing, a rotor rotatable about an axis, a stator including a core and a plurality of coils wound about the core, a commutator, and a fluid-driving element configured to drive a fluid. The housing defines an internal chamber including a stator-receiving space at least substantially receiving the stator, a commutator-receiving space at least substantially receiving the commutator, and an element-receiving space at least substantially receiving the fluid-driving element. ... Nidec Motor Corporation

05/18/17 / #20170141705

Electronically controlled switch for an electric motor

A system in which the operation of an electric motor is controlled by electronically controlled switches. The system includes the motor having a run winding and a start winding, a heating component, and a motor control subsystem. ... Nidec Motor Corporation

05/18/17 / #20170138362

Pump motor for high temperature fluids

A motorized pump assembly includes a pump and a motor for driving the pump. The pump includes a pump housing that at least in part defines a pump chamber. ... Nidec Motor Corporation

05/04/17 / #20170126090

End cap for outer rotor motor

An outer rotor motor includes a stator, an end cap for use with the stator, and a stator mount operable to facilitate mounting of the stator to a machine. The end cap includes wire-routing structure facilitating routing of the stator wiring. ... Nidec Motor Corporation

04/27/17 / #20170114883

Mechanical seal for gearmotor assembly having threaded bearing retainer

A gearmotor assembly includes a housing, a rotatable shaft, a bearing, a retaining member, and a seal. The housing defines a gear chamber configured to contain a lubricant. ... Nidec Motor Corporation

04/27/17 / #20170114641

Internal bearing plate for gearmotor assembly

A motor includes a housing, a shaft, a bearing, a bearing plate, and a seal. The housing includes first and second housing components directly engaging one another along a housing interface. ... Nidec Motor Corporation

04/27/17 / #20170114640

Sealing sleeve for geared shaft of gearmotor assembly

A motor includes a shaft rotatable about an axis, an engaged component engaged by the shaft, a sleeve fixed to the shaft to rotate therewith, and a seal at least partly circumscribing the shaft. The shaft includes an engagement region presenting a substantially variable outer shaft surface that at least in part engages the engaged component. ... Nidec Motor Corporation

03/30/17 / #20170093245

Brush holding device for a commutator machine

A motor may include a rotating section; and a stationary section. The rotating section may include a shaft, a rotor core, and a coil wound around the rotor core. ... Nidec Motor Corporation

03/23/17 / #20170085150

Brush holding device for a commutator machine

A motor may include a rotating section; and a stationary section. The rotating section may include a shaft, a rotor core fixed to the shaft, a coil wound around the rotor core, and a sensor magnet fixed to the shaft. ... Nidec Motor Corporation

03/23/17 / #20170085048

Brush holding device for a commutator machine

A brush holding device may include a brush holder; a plug; a first plug contact element and a second plug contact element; and a first circuit board. The first plug contact element and the second plug contact element may be connected with a brush through a choke coil. ... Nidec Motor Corporation

03/02/17 / #20170063286

Methods and systems for selecting and programming replacement motors

Methods and systems for replacing hvac blower motors and other electric motors are disclosed including systems and methods for gathering and storing information about motors that may need to be replaced, systems and methods for selecting replacement motors, and systems and methods for programming the replacement motors. The systems and methods allow a select few replacement motors to be programmed to replace nearly any original motor.. ... Nidec Motor Corporation

03/02/17 / #20170063191

Motor bearing lubrication arrangement

A motor includes a rotor rotatable about an axis, a housing defining a motor chamber receiving at least a portion of the rotor, and a bearing assembly rotatably supporting the rotor on the housing. The housing includes a pair of axially spaced apart endshields. ... Nidec Motor Corporation

03/02/17 / #20170063182

Motor having split spray ring for cooling end turns

A motor is cooled with a coolant. The motor includes a rotor rotatable about an axis, a stator including a stator core and windings wound about the stator core, a housing enclosing at least a portion of the stator, and a resiliently deflectable spray ring extending circumferentially relative to the axis. ... Nidec Motor Corporation

02/23/17 / #20170054396

System and method for optimizing flux regulation in electric motors

A system and method for dynamically optimizing flux levels in electric motors based on estimated torque. Motor parameters and motor equations are used to estimate operating characteristics and to set current and voltage limits which define an optimal flux operating range for a given speed and torque of the motor. ... Nidec Motor Corporation

02/16/17 / #20170048324

Systems and methods for selecting and wirelessly programming a motor

A system for wirelessly programming and diagnosing a motor includes a server computer system, a portable electronic device, and a wireless communication device. The server computer system stores motor operating parameters and other motor data that can be accessed by the portable electronic device over a wireless communication network for identifying a suitable replacement motor for an unserviceable motor. ... Nidec Motor Corporation

02/16/17 / #20170047824

Dynamoelectric machine assemblies having memory for use by external devices

A method is provided for storing data from an external device in a dynamoelectric machine assembly (i.e., an electric motor or generator). The dynamoelectric machine assembly includes a memory device and a processor for controlling operation of the dynamoelectric machine assembly in response to commands from an external device. ... Nidec Motor Corporation

02/02/17 / #20170033718

Motor control system and method for skipping resonant operating frequencies

A system and method of avoiding hunting behavior by a motor around disallowed speed ranges. A sensor or sensorless method determines the motor's actual speed. ... Nidec Motor Corporation

01/19/17 / #20170019039

System and method for limiting vibration of electric motor

A system and method for limiting the vibration of an electric motor so as to avoid situations in which extreme vibration may result in damage to the motor or other equipment. A motor control subsystem runs the motor in accordance with a command specifying a speed or torque. ... Nidec Motor Corporation








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