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Generator

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USPTO Class 310 - Electrical generator or motor structure
Updated: 2 days 8 hours ago

Acoustic wave element and acoustic wave device using same

Mon, 06/02/2014 - 1:40pm
An IDT electrode of a SAW element has a plurality of first dummy electrodes which extend from the first bus bar to the second bus bar side and have tips which face the tips of the plurality of second electrode fingers through a plurality of first gaps, and a plurality...
Categories: Electronics

Composite substrate, surface acoustic wave device, and method for manufacturing composite substrate

Mon, 06/02/2014 - 1:40pm
In a composite substrate 10, a bonding surface 21 of a piezoelectric substrate 20 is an irregular surface which is partially planarized. The irregular surface which is partially planarized includes a plurality of protrusions 23, each having a flat portion 25 on the tip thereof. The piezoelectric substrate 20 and...
Categories: Electronics

Resonator device, electronic device, and moving object

Mon, 06/02/2014 - 1:40pm
A quartz crystal vibrator includes a quartz crystal resonator element, a thermistor adapted to detect the temperature, and a package adapted to incorporate the quartz crystal resonator element and the thermistor, a plurality of electrode pads adapted to support the quartz crystal resonator element is disposed on an inner bottom...
Categories: Electronics

Piezoelectric vibration module

Mon, 06/02/2014 - 1:40pm
Disclosed herein is a piezoelectric vibration module including: a vibration plate mounted with a piezoelectric device and including at least one first elastic member; a lower case spaced apart from the vibration plate by a predetermined interval, disposed to be in parallel with the vibration plate, and including at least...
Categories: Electronics

Ultrasound backing element, transducer and ultrasound probe including the same

Mon, 06/02/2014 - 1:40pm
An ultrasound backing element, a transducer including the ultrasound backing element, and an ultrasound probe. The ultrasound backing element includes: a first concave/convex unit formed of a material capable of absorbing ultrasonic waves, and comprising a first surface and a second surface that are not in parallel with each other;...
Categories: Electronics

Piezoelectric polymer element and production method and apparatus therefor

Mon, 06/02/2014 - 1:40pm
A piezoelectric polymer element such as a fibre or film is described, having a solid cross-section and a substantially homogeneous composition. A method of forming such a piezoelectric polymer element is also described. The method has the steps of extruding a polymer material and concurrently poling a region of the...
Categories: Electronics

Tubular spring for receiving and pretensioning an actuator

Mon, 06/02/2014 - 1:40pm
A tubular spring is provided for receiving and pretensioning a piezoelectric or magnetostrictive actuator of an actuator unit, e.g., for actuating a fuel injector valve in internal combustion engines, wherein the tubular spring comprises at least two types of recesses, each comprising different maximum lateral extensions in the longitudinal direction...
Categories: Electronics

Rotary lifting device

Mon, 05/26/2014 - 1:39pm
A rotary lifting device comprises an actuator shaft, a linear motor and a rotary motor for moving and rotating the actuator shaft about the longitudinal axis thereof. The rotary motor has a hollow rotor, through which the actuator shaft extends and which is kinematically coupled to the actuator shaft in...
Categories: Electronics

Vibration generator

Mon, 05/26/2014 - 1:39pm
The present invention provides such a vibration generator which can obtain desired power-generation efficiency even if the vibration frequency is low. A vibration generator is provided with a vibrator which includes a plurality of magnets whose same magnetic poles are arranged by being faced to one another and which vibrates...
Categories: Electronics

Vibration motor

Mon, 05/26/2014 - 1:39pm
In a vibration motor, insulators are provided with protrusions that are positioned radially inward from extension portions, provided at an end portion of a body of a weight, and that restrict radial movement of the extension portions. In addition, in the vibration motor, the weight is supported by the protrusions...
Categories: Electronics

Ring element for a rotor of an electric motor

Mon, 05/26/2014 - 1:39pm
A ring element includes a convex, in particular rounded, surface element for arrangement on at least one axial end region of a winding section of an electric motor rotor. The surface element provides a minimum radius curvature for supporting an inner layer of a rotor winding on the winding head....
Categories: Electronics

Electric motors

Mon, 05/26/2014 - 1:39pm
Electric motors are disclosed with coils which induce a magnetic flux field which by its relationship with ferromagnetic poles provide the motoring force without use of an auxiliary magnetic field. The motors may be employed with fixed or pivotably mounted brushes. Pivotable brushes for electric motor brushes are disclosed....
Categories: Electronics

Electric power tool

Mon, 05/26/2014 - 1:39pm
According to an aspect of the invention, an electric power tool which includes a brushless direct-current motor and a drive circuit that supplies drive power to the motor, and which rotates or drives a tool, characterized in that the drive circuit includes plural switching elements, and is arranged on a...
Categories: Electronics

Cooling fixture and motor device using same

Mon, 05/26/2014 - 1:39pm
A motor device includes a main body and a cooling fixture carrying the main body. The cooling fixture includes a contacting surface projecting relative to the main body. The contacting surface is configured for contacting a mold. The cooling fixture defines a cooling water channel....
Categories: Electronics

Stator module and magnetic field generated structure thereof

Mon, 05/26/2014 - 1:39pm
The disclosure provides a stator module and a magnetic field generated structure which includes a magnetizer and an electrically conducting pipe. The electrically conducting pipe is wound around the magnetizer and has a passage inside. The passage has an outlet and an inlet opposite to each other. The electrically conducting...
Categories: Electronics

Stator structure

Mon, 05/26/2014 - 1:39pm
A stator structure includes a stator core, multiple windings and a frame. The stator core has multiple teeth and multiple grooves. The core has a first side and a second side opposite to each other. The teeth protrudes from the first side. The grooves are recessed inward from the second...
Categories: Electronics

Rotating electric machine and related packaging method

Mon, 05/26/2014 - 1:39pm
Described is a rotating electrical machine integrating an electronic module comprising a printed circuit, a plurality of electronic power and signal components positioned on the components side of the printed circuit, a plurality of conductor tracks, positioned on the welding side opposite the components side of the printed circuit, which...
Categories: Electronics

Brushless motor

Mon, 05/26/2014 - 1:39pm
A brushless motor includes a magnet rotor including a rotational shaft and a permanent magnet, the magnet rotor rotatable about the rotational shaft, a stator including plural teeth provided at a radial position being opposed to a circumferential surface of the magnet rotor, and a magnetic sensor for detecting a...
Categories: Electronics

Rotor and brushless motor

Mon, 05/26/2014 - 1:39pm
A rotor includes a first rotor core, a second rotor core, a field magnet, and a detected portion. The first rotor core includes a first core base and a plurality of first claw-shaped magnetic pole portions. The second rotor core includes a second core base and a plurality of second...
Categories: Electronics

Band attenuation filter

Mon, 05/26/2014 - 1:39pm
Application to motor vehicle windshield wiper motors. A band attenuator/eliminator filter (F) for the electromagnetic emissions of a brushed DC motor. This filter comprises at least one gamma filter (G) with capacitive (C1)/reactive (L1) impedance which is intended to be connected between the motor positive power supply input (M+), the motor...
Categories: Electronics