52 results about "Electrostatic motor" patented technology

An electrostatic motor includes a stator electrode member (1a) and a slider electrode member (1b). The stator electrode member (1a) and the slider electrode member (1b) are provided with drive electrode patterns (2), and the drive electrode patterns are covered by cover films (4). Surfaces of the stator electrode member (1a) and the slider electrode member (1b) contacting each other are provided with a plurality of minute projections (5). A clearance between the stator electrode member and the slider electrode member is maintained by the contact of the projections. The projections (5) may also be provided on only one of the stator electrode member (1a) and the slider electrode member (1b), with the other electrode member having a flat surface.

Capacitive machines generate torque, generate electric power, and/or transmit electrical signals using closely spaced parallel plates wherein one plate is in motion relative to the other. Closer plate spacing, and thus greater power capacity, is obtained by defining flexures at or near the locations where the plates are anchored to their actuators or mountings, and by defining walls which obstruct fluid flow between one or more of the plates. As one plate is set in motion parallel to the other, thereby inducing fluid flow between the plates, the flow generates a fluid pressure distribution which tends to maintain the plates in spaced relation. In response to the pressure, the flexures allow the plates—which may be out of parallel—to displace and/or tilt from their nominal positions into close parallel relation, thereby providing better capacitance (and thus better torque/power/signal transmission).

A five freedom static electricity suspended variable capacity type micro - static electricity motor is used for MEMS systematical micro - execution unit and micro - inertia sensitive element etc field. It contains upper stator, lower stator, rotor, inner stator and outer stator, and suspend control system, wherein the upper and lower stator and inside and outside stator to form one closed intracavity, rotor suspend in annular intracavity geometrical center, utilizing axial direction radial boosting electrode to apply electrostatic force, through detecting capacitor differential variation between electrode and rotor to realize, through suspend control system to realize five freedom active static electricity suspension displacement detection, utilizing rotor salient pole and stator driving electrode to apply driving torque. Said invention provided micro - static electricity motor can restrict rotor all freedom of movement except rotating around the Z axis, not only eliminating mechanical contact induced moment of friction and raising working lives, but also providing larger driving moment and radial overload capacity, to obtain very high rotor speed.

The invention relates to an automatic electrostatic eliminator which comprises a shell, a central processing unit (CPU), a roller wheel, an ionic wind generator and the like; the automatic electrostatic eliminator also comprises an electrostatic detector arranged at the front end, and four infrared distance measurement devices; the electrostatic detector, the infrared distance measurement devices and the ionic wind generator are respectively connected with the CPU; and the working power sources of the CPU, the electrostatic detector, the infrared distance measurement devices and the ionic wind generator are supplied by a built-in storage battery. The automatic electrostatic eliminator has the beneficial effects that the electrostatic eliminator can automatically run in the space and detect and eliminate electrostatic charge, and has remarkable function for electrostatic elimination which can not be effectively contacted with the ground and has charge accumulation blind angle.

An electrostatic motor includes a cylindrical rotor and a stator. Electrodes are disposed on an inside cylindrical surface of the stator. Electrets and/or electrically conductive electrodes are disposed on the cylindrical rotor and a dielectric fluid fills space between the rotor and the stator to prevent discharge of the electrets. A mask is used to charge portions of an electret cylinder or other curved surface.

A micro pumping mechanism is proposed to generate flow in micro channels of micro fluidic devices and three dimensional microprocessors cooled by the flow of coolant fluids. The proposed micro pump comprises a rotating disk inside a chamber, which overlaps with the fluidic micro channel. The rotating disk induces a shear flow across the micro channel, transporting fluid elements in the direction of the rotation of the disk. The disk can be rotated by external magnetic or electric fields as in direct drive, induction, or electrostatic motors.

A variable speed drive for an electrostatic motor provides feedback control by conversion of measured current phases provided to the motor into a vector in a rotating rotor framework. This vector is used for evaluating corrective voltages and then reconverted to a non-rotating framework for application to the motor electrodes. Current-source drive circuits provide current stabilized outputs making such sophisticated control tractable.

A variable speed drive for an electrostatic motor provides feedback control by conversion of measured current phases provided to the motor into a vector in a rotating rotor framework. This vector is used for evaluating corrective voltages and then reconverted to a non-rotating framework for application to the motor electrodes. Current-source drive circuits provide current stabilized outputs making such sophisticated control tractable.

Stator and slider film electrodes (1, 2) are integrally provided with spacer members (10; 10′; 10″; 15; 15′; 15″; 20). The spacer member is bonded to one end of a base film (4a) on which different phase electrode elements (3a, 3b, 3c) are disposed. After this, cover films (4b) are bonded to the two surfaces of the base film on which the spacer member is bonded to obtain a spacer-equipped film electrode.

The present invention discloses a single-phase capacitor variable electrostatic motor. The motor comprises a housing, a rotor rotating shaft and a rotor, a first stator and a second stator which are arranged in the housing. The rotor is located between the first stator and the second stator, the rotor rotating shaft passes through the housing, the first stator and the second stator are installed on the rotor rotating shaft through a bearing, the rotor sleeves and is fixed on the rotor rotating shaft, the inner side surface of the first stator is provided with a plurality of first electrode layers, one side surface of the rotor is provided with a plurality of second electrode layers, the other side surface of the rotor is provided with a plurality of third electrode layers, the inner side surface of the second stator is provided with a plurality of fourth electrode layers, the output torque of the motor is large, one type of potential electrodes are distributed on each stator.

The invention provides an electrostatic motor capable of improving the efficiency of the motor and even fulfills the aim of making the output energy larger than the input energy. The static electricity is arranged inside an electric actuator, the static electricity on each part is positioned on an object which is positioned outside each power input body and is not linked with the power input body; and for a self induction and mutual inductance transformer which does not have relative movement, the static electricity is positioned near the power input body. The electrostatic motor has the advantages that the efficiencies of the motor and the transformer are improved greatly and the method is simple and is easy to implement.

A method of manufacturing an electrostatic motor including a stationary member with electrodes disposed on an insulating substrate at regular intervals, a movable member with electrodes disposed on an insulating substrate at regular intervals, a first support member for fixedly supporting the stationary member, and a second support member for movably supporting the movable member. A plurality of electrodes are formed on one surface of an insulating substrate and, simultaneously therewith, a light interrupting mark is locally formed on the surface independently of the electrodes, to produce the stationary or movable member. A local region of the insulating substrate adjacent to the light interrupting mark is irradiated with a light, whereby removing the local region along an edge of the light interrupting mark without substantially damaging the light interrupting mark, to provide a mounting recess in the stationary or movable member. The stationary or movable member is mounted onto the corresponding first or second support member by using the mounting recess.

The invention relates to an electrostatic motor based on an electret film. The electrostatic motor comprises a stator, a rotor and a rotating shaft; a first electric brush and a second electric brush are arranged above the stator, and a first electret film and a second electret film with opposite positive and negative electrodes are adhered to the upper surface of the stator; and a commutator is arranged at the position of a middle shaft of the rotor and comprises two commutator copper sheets and an insulating part arranged between the two commutator copper sheets, semicircular metal electrodes corresponding to the commutator copper sheets in a one-to-one mode are arranged on the lower surface of the rotor, and the semicircular metal electrodes are connected to the commutator copper sheets corresponding to the semicircular metal electrodes through rectangular metal strips respectively. An air gap exists between each semicircular metal electrode and the stator; and the first brush and the second brush contact the commutator, and the rotating shaft passes through the center of the rotor. The electrostatic motor has no heating phenomenon when driving an external load to work, the power consumption of the motor is effectively reduced, motor miniaturization is facilitated, and the problems that an existing electrostatic motor is small in output torque and needs complex voltage regulation and control are solved.

The invention belongs to the technical field of electrostatic motors, especially relates to a laminated capacitor motor. The laminated capacitor motor comprises a coil and a first rotating shaft fixedly connected with an output shaft. The coil is provided with four current Hall sensors, the first rotating shaft is sleeved with a plurality of layers of capacitor transmission components, the coil isin bridge connection with a first insulated bipolar transistor group, a second insulated bipolar transistor group, a third insulated bipolar transistor group and a fourth insulated bipolar transistorgroup, and the four current Hall sensors are respectively connected with the first insulated bipolar transistor group, the second insulated bipolar transistor group, the third insulated bipolar transistor group and the fourth insulated bipolar transistor group. According to the invention, the larger torque can be output in a smaller volume, and excessive requirements on materials and accurate control on the position of the rotor are not needed.

The invention discloses a phase change control device of a variable-capacitance linear electrostatic motor. The phase change control device comprises a driving power supply, a current detection circuit, an integrator and a single-chip microcomputer, wherein the driving power supply is connected with the electrostatic motor and is used for outputting a three-phase driving signal so as to drive a rotor to slide; the current detection circuit is used for detecting the current data flowing through the electrostatic motor and transmitting the current data to the integrator; the integrator is used for integrating the current data to obtain electric quantity and transmitting the electric quantity to the single-chip microcomputer; and when the single-chip microcomputer judges that the absolute value of the electric quantity reaches the maximum, the motor is controlled to change phase. The invention further discloses a phase change control method of the variable-capacitance linear electrostaticmotor. The phase change control method comprises the following steps that firstly, the current data flowing through the electrostatic motor is acquired, and the electric quantity is obtained; and then the electrostatic motor is controlled to change phase at the moment when the maximum of the absolute value of the electric quantity is reached. According to the technical scheme, the phase change electrifying time of the variable-capacitance linear electrostatic motor can be shortened, the phase change frequency and the movement speed are increased, and the electrostatic motor can keep running stably for a long time.

A transducing head positioning system for use with patterned media. The patterned media comprises a plurality of data tracks and grooves. The grooved tracks can be used in connection with electrodes on a slider to create an electrostatic motor for microactuation of the slider.