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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


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. The housing includes... Nidec Motor Corporation

System and 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

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. The rotor includes a core including a plurality of pole segments arranged arcuately about the axis. The rotor further includes a plurality of arcuately arranged magnets alternating arcuately with the pole segments, such that each... Nidec Motor Corporation

System and 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... 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... 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. A... Nidec Motor Corporation

System and 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. A PFC circuit manages the power flowing to the motor. A sensing circuit located between the... 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. A switch coupled to the backlight selectively turns OFF the backlight... Nidec Motor Corporation

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. The motors include lift, turntable, and locomotion motors.... Nidec Motor Corporation

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. A control unit closes a first switch to energize the run winding, closes... Nidec Motor Corporation

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. The rotor includes a core including a plurality of arcuately arranged pole segments arranged arcuately the axis. The rotor further includes a plurality of arcuately arranged magnets alternating with the pole segments, such... Nidec Motor Corporation

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... Nidec Motor Corporation

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. The rotor also includes a plurality of magnets arranged arcuately about the shaft assembly, and a plurality of pole segments arranged arcuately about the shaft assembly. The pole segments alternate... Nidec Motor Corporation

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... Nidec Motor Corporation

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. The rotating element also includes a plurality of bars, with each bar extending through one of the bar... Nidec Motor Corporation

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. The gear assembly further includes a carrier supporting the intermediate... Nidec Motor Corporation

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. The motor includes a rotor rotatable about an axis. The rotor includes a rotatable support body, a plurality of arcuately spaced apart magnets,... Nidec Motor Corporation

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. The motor includes a rotor rotatable about an axis. The rotor includes a rotatable support body, a plurality of arcuately spaced apart magnets,... Nidec Motor Corporation

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... Nidec Motor Corporation

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... Nidec Motor Corporation

Universal voltage and phase input power supply for electrical motors

A power supply generates power factor corrected power from AC power having one or more phases and different levels of output voltages. The power supply includes a power factor correction circuit that charges a capacitor through at least one inductor. Each inductor of the at least one inductor is independently... Nidec Motor Corporation

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. The motor includes a stator, a rotor rotatable about an axis, a motor housing, and a bearing assembly. The rotor includes... Nidec Motor Corporation

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. A control unit closes a first switch to energize the run winding, closes... Nidec Motor Corporation

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. The structure includes a wire-routing trough that defines a... Nidec Motor Corporation

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... Nidec Motor Corporation

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. The housing at least in part defines a sealed chamber. The shaft is at least in part received in... Nidec Motor Corporation

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. The bearing rotatably supports the shaft. The bearing is disposed between the housing and the shaft. The retaining member at least in... Nidec Motor Corporation

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... Nidec Motor Corporation

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. The bearing assembly includes a bearing... Nidec Motor Corporation

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... Nidec Motor Corporation

System and 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

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. The... Nidec Motor Corporation

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... Nidec Motor Corporation

Motor control 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. A memory contains lower and upper speed values that define a disallowed range. A control unit determines whether the motor is operating under a limiting... Nidec Motor Corporation

System and 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. A vibration... Nidec Motor Corporation








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