Abstract: An apparatus including a first device configured to support a substrate thereon; a first transport having the first device connected thereto, where the first transport includes: rails or maglev guides; a magnetic system configured to vertically space the first device over the rails or maglev guides with a gap between the first device and the rails or maglev guides, where the magnetic system comprises a first electromagnetic actuator at a first corner of a first side of the first device, a second electromagnetic actuator at a second corner of the first side of the first device, and a third electromagnetic actuator at a second opposite side of the first device, where the third electromagnetic actuator is not located proximate a corner of three sides of the first device; and a linear actuator configured to move the first device along the rails or maglev guides.

Abstract: Provided are a magnetic bearing compressor, an air conditioner and a protective air gap value setting method. The magnetic bearing compressor includes: a rotor, a magnetic bearing, a sensor, and a control device. The magnetic bearing is sleeved on the rotor; the sensor is arranged on the magnetic bearing and is configured to detect a distance value between the rotor and the sensor on a preset plane; the control device is configured to receive the distance value and determine the minimum distance value and the maximum distance value between the rotor and the magnetic bearing according to the distance value, and obtain an absolute value of a difference of the maximum distance value and the minimum distance value; and the control device obtains a protective air gap value according to the absolute value and a preset protection coefficient when the absolute value is less than or equal to a preset air gap value.

Abstract: An electrode pair is provided including a first electrode and a second electrode. Each of the first electrode and the second electrode have an outer surface, an inner surface, a first end, a second end, and a lead extending outwardly from the first end. The lead has a first width at the first end. The second end of at least one of the first electrode and the second electrode have a recess formed therein having a first terminus and a second terminus. A second width extends between the first terminus and the second terminus of the recess. The recess is defined by a saw-tooth pattern. When the first electrode is positioned on the second electrode, the recess of the at least one of the first electrode is adjacent the lead of the other electrode.

Abstract: A capacitive system provides adjustable electrical potential output using first and second capacitive plates maintained in a parallel and opposed relationship, while permitting the separation distance of the first and second capacitive plates to change. A drive mechanism is used to increasing the separation distance between the capacitive plates, so that an increase in separation distance renders a decreased capacitance, and with the capacitive plates charged relative to each other, the increase in separation distance renders an increase in potential across the capacitive plates. A bidirectional DC-DC voltage converter transfers current to and from the capacitor.

Abstract: A rotor (1) of an electrical machine is already known, comprising a rotor body (3) which can be rotated about a rotor axis (2) and comprising several cooling ducts (5) which have a cooling duct opening (8.1, 8.2) at each of its ends, wherein one cooling duct opening (8.1) of one of the cooling ducts (5) is arranged radially further outside than the other cooling duct opening (8.2) of the same cooling duct (5). The driving force for generating an airflow through the cooling ducts (5) is generated by a radial offset between a channel of a hollow shaft of the rotor and one of the cooling duct openings of the rotor. In the rotor (1) according to the invention, the driving force for generating the airflow is generated solely in the cooling duct (5) in question of the rotor (1). According to the invention: the first cover element (10) covers the radially innermost partial cross-section of the cooling duct opening (8.

Abstract: An embodiment relates to a stator and a motor comprising same, the stator comprising: a stator core comprising a yoke and multiple teeth protruding from the inner surface of the yoke; an insulator surrounding a part of the stator core; a coil wound around the insulator; and a molding portion disposed to cover the stator core, the insulator, and the coil. The insulator comprises a first insulator and a second insulator. The first insulator comprises: a body portion around which the coil is wound; and inner guide extending from the inside of the body portion in the perpendicular direction; a first outer guide extending from the outside of the body portion in the perpendicular direction; a second outer guide disposed to be spaced apart from the first outer guide in the outward direction; and a protrusion protruding from the second outer guide in the inward direction. The protrusion has an end portion disposed such that a predetermined gap (G) is formed between same and the first outer guide.

Abstract: A stator including a ring having teeth and slots between said teeth that open radially outwards and material bridges, each linking two adjacent teeth to the respective base on the side of the air-gap, a yoke attached to the ring, and windings placed in the slots of the ring, at least some of the material bridges having at least on deformable zone that can be deformed during assembly of the yoke on the ring.

Abstract: An electric motor monitor having at least one sensor in electrical communication with a memory device and a motor. The memory device is configured to establish a performance baseline of the motor throughout its workload. The signal processing incorporates a memory device such as a microcomputer and/or a programmable logic controller configured to determine the work being performed by the motor by comparing the baseline performance of the motor throughout its work load to at least, the armature amperage of the motor. A wireless system transmits an operating motor's work parameters including, but not limited to, amperage, temperature, vibration, sound, rotation, power, moisture and/or voltage data, to a mobile or fixed base receiver. Data is accessible and viewable in real time. Alerts based on user-defined thresholds of the sensors are sent to an electronic device such as a tablet, a computer, and/or a smart phone.

Abstract: A movable magnet is configured by alternately magnetizing an even number of magnetic poles at an outer periphery of a shaft part; a number of core magnetic poles as magnetic poles of a core body and a number of magnetic poles of the movable magnet are equal to each other; the core magnetic poles are disposed to face the movable magnet with an air gap therebetween on an outer peripheral side of the movable magnet in a direction orthogonal to the shaft part; a drive unit is provided with a magnet position holding part provided to face the movable magnet and magnetically attracts the movable magnet to a reference position; the core body is formed to surround an even number of the core magnetic poles; and a coil body is disposed at the core body adjacent to each of the even number of the core magnetic poles.

Abstract: Integrated arrangements of electrical machines and power electronics converters are described. One such arrangement comprises: an electrical machine comprising one or more windings; a power electronics converter arranged to supply current to or receive current from the one or more windings of the electrical machine; a magnetocaloric effect (MCE) material in thermal contact with the power electronics converter; and a heat sink for removing heat from the MCE material. The MCE material is arranged in proximity to the one or more windings of the electrical machine whereby, in use, stray magnetic flux from the windings of the electrical machine passes through the MCE material and activates the MCE material. The repeated application and removal of the stray flux during normal operation of the electrical machine creates cycles of magnetic refrigeration, which removes heat from the power electronics converter.

Abstract: A power tool with a combined printed circuit board (PCB) that reduces internal wiring of the power tool and provides a large amount of air flow to internal components. In some instances, the combined PCB has a surfboard shape and includes a motor control unit and power switching elements (Field Effect Transistors or FETs). The combined surfboard PCB is located above the trigger, but below the motor and drive mechanism. In other instances, the combined PCB has a doughnut shape and is located coaxially with a motor shaft. The combined PCB may be positioned between a doughnut-shaped control PCB and the motor.

Abstract: A dielectric elastomer drive system A1 includes: a dielectric elastomer drive unit 1 provided with a dielectric elastomer layer 11 and a pair of electrode layers 12 flanking the dielectric elastomer layer 11; a power supply unit 5 configured to apply voltage to the dielectric elastomer drive unit 1; and a charge removal unit 2 configured to remove the charge stored in the dielectric elastomer drive unit 1. The configuration contributes to improving responsiveness.

Abstract: An actuator that utilizes a Coulomb force is provided. An actuator (10) includes a base electrode (2), a counter electrode (4) opposing the base electrode (2), a first terminal (31) connected to the base electrode (2), and a second terminal (32) connected to the counter electrode (4). At least a surface (2c) of the base electrode (2) that opposes the counter electrode (4) is covered with an insulating layer (6). The counter electrode (4) includes a flexible electrical conductor being deformable by a Coulomb force acting between the base electrode (2) and the counter electrode (4) when a voltage is applied between the first terminal (31) and the second terminal (32).

Abstract: An example apparatus including a rotor stage of an electrostatic machine, the rotor stage including a rotor plate, at least one rotor via, a rotor power distribution board including at least one rotor power distribution bus, at least one rotor power coupling perforation, and a rotor electrical coupling circuit; a stator stage of the electrostatic machine, the stator stage including a stator plate, at least one stator via, a stator power distribution board including at least one stator power distribution bus, at least one stator power coupling perforation; and a stator electrical coupling circuit structured to electrically couple the at least one stator power distribution bus to at least a portion of the plurality of stator electrodes, wherein the stator electrical coupling circuit extends through the at least one stator via and the at least one stator power coupling perforation.

Abstract: In an electric power steering apparatus, a motor housing includes an axial end part opposite to an output part of an electric motor. An electronic control section is arranged at the axial end part of the motor housing. The electronic control section includes a control circuit part, a power supply circuit part, and a power conversion circuit part. The axial end part of the motor housing includes a power conversion part thermal radiation region and a power supply part thermal radiation region. The power conversion circuit part is mounted to the power conversion part thermal radiation region to allow heat to be transferred from the power conversion circuit part to the motor housing. The power supply circuit part is mounted to the power supply part thermal radiation region to allow heat to be transferred from the power supply circuit part to the motor housing.

Abstract: A handheld image stabilization device or an image capture device includes a housing, a motor, a microphone, and a dampener. The housing includes a first port. The motor is attached to the housing. The microphone detects audio waves via the first port and vibration noise of the motor via the housing. The audio waves may include acoustic noise from the motor. The dampener is coupled to the housing. The dampener reduces the acoustic noise from the motor and the vibration noise from the motor.

Abstract: The present invention is directed to providing an electrostatic actuator that can generate a large electrostatic force even if composed of a ribbon-shaped electrode film. In an electrostatic actuator 10, 20 including a ribbon-shaped first electrode film 11 and a ribbon-shaped second electrode film 12, a plurality of first electrodes 1 formed of the first electrode film 11 and a plurality of second electrodes 2 formed of the second electrode film 12 are folded and laminated between one end 13 and the other end 14 of the electrostatic actuator 10, 20, and the plurality of first electrodes 1 include a pair of end electrodes 1a that are adjacent to each other in a direction in which the first electrode film 11 extends in a ribbon shape and are respectively positioned at the one end 13 and the other end 14 when laminated and at least one intermediate electrode 1b that is positioned between the end electrodes 1a when laminated.

Abstract: This MEMS beam structure that elastically supports a movable section displaced in a first direction includes: a first beam section and a second beam section extending in a second direction orthogonal to the first direction; and a linking section that connects the tip of the first beam section and the tip of the second beam section that is connected to the movable section, wherein the first beam section and the second beam section each have a shape as a beam of uniform strength, and the beam section root of the second beam section is displaced relatively in the first direction with respect to the beam section root of the first beam section according to the displacement of the movable section in the first direction.

Abstract: A power generation device includes a filter holder that is a container filled with water and a filter member. The filter member is composed of porous glass in a form of a plate and arranged in the filter holder between a first space upstream from the filter member and a second space downstream from the filter member. The filter member allows hydrogen ions to pass therethrough more easily than hydroxide ions. The power generation device generates electric power based on a potential difference between the first space and the second space when a water flow from the first space toward the second space is produced in the filter member. The water flow flows along a direction of thickness of the filter member.

Abstract: An actuator has a plurality of pairs of a flexible electrode having flexibility, and a base electrode having an opposed face that is opposed to the flexible electrode and is covered with an insulating layer. The flexible electrode is configured to deform to get closer to the opposed face when a voltage is applied to the flexible electrode and the base electrode. Each of the pairs is located on the same axis, and adjacent ones of the pairs are connected to each other. The axis intersects with the opposed face of the base electrode of each of the pairs. The base electrode of each of the pairs is divided into a plurality of electrode portions insulated from each other, and the voltage is individually applied to the electrode portions.