56results about "Electrostatic generators/motors" patented technology

The utility model discloses a flexible film motor providing tactile feedback, a multilayer film motor and a glove, the flexible film motor comprises a first film layer, a support layer and a second film layer, the film layer comprises an insulation substrate, a flexible electrode and a dielectric layer, the insulation substrate attached to the skin is arranged on one side of the flexible electrode, and the dielectric layer is arranged on the other side of the flexible electrode. The dielectric layer is arranged on one surface, far away from the insulating substrate, of the flexible electrode, and the supporting layer is arranged between the dielectric layer of the first thin film layer and the dielectric layer of the second thin film layer. The flexible thin-film motor provided by the embodiment of the utility model can generate mechanical vibration through electrostatic force, thereby generating efficient tactile feedback, and is wide in operation frequency domain, high in feedback precision, and high in reliability. Meanwhile, it can be guaranteed that the tactile feedback glove can keep good fitness and operation flexibility when carrying out various hand actions, and a user can carry out fine operation and natural hand movement.

The invention belongs to the technical field of motors, and particularly relates to a rotary exposed electrostatic motor with an embedded stator and an aircraft, the rotary exposed electrostatic motor comprises a stator module, a rotor module, a bearing assembly, a charge transfer assembly and a power supply assembly, the stator module is embedded in the inner side of a bearing, and the rotor module sleeves the outer side and is partially exposed; the rotor blades can directly drive an external load to rotate, the power supply assembly enables the adjacent stator blades to be electrified alternately to form a driving electric field, and the charge transfer assembly achieves charge exchange during rotation so as to drive the rotor module to rotate. According to the structure, direct output of energy is achieved through the layout that the stator is embedded and the rotor is exposed, mechanical transmission loss is reduced, energy conversion efficiency is improved, and when the structure is applied to an aircraft, a motor can directly drive a propeller to generate thrust, the gravity center of the aircraft is lowered, and attitude stability and propelling efficiency are improved.

The invention belongs to the technical field of micro electro mechanical systems and micro sensors / actuators, and discloses an electrostatic self-excitation cantilever beam device which comprises a potential floating insulation base, a conductive cantilever beam fixed on the potential floating insulation base, parallel electrodes located on the two sides of a free end and an electric brush adjacent to the free end. And self-excited vibration of the conductive cantilever beam under the action of electrostatic force and elastic restoring force is realized. The electrostatic self-excitation micro-beam device based on the new oscillation starting principle is provided aiming at the oscillation starting principle defect of an existing device, and compared with an original oscillation starting principle and device, the electrostatic self-excitation micro-beam device is lower in oscillation starting voltage, avoids interference of micro-beam suspension potential in the oscillation starting stage, and is high in vibration starting efficiency. And during working, the output of mechanical work or electronic signals is more stable, and the practical value is better.

To derive a general formula of a compound exhibiting a giant surface potential when formed into a membrane, and realize a membrane with a large surface potential useful as an electret material.SOLUTION: The membrane contains a compound represented by the general formula (1) in the figure. In the general formula (1), R represents a fluoroalkyl group; and none to two of the X, Y and Z represent fluoroalkyl groups while the remainder represents substituents other than fluoroalkyl groups.SELECTED DRAWING: None

The invention belongs to the technical field of motors, and particularly relates to an electrode-integrated direct-current double-brush stacked electrostatic motor, which comprises a shell, a rotating shaft, a bearing, stator discs, rotor discs, stator disc conducting rods, rotor disc conducting rods, a commutator and the like, the stator disc conducting rod alternately introduces positive and negative electrodes of an external high-voltage direct-current power supply into each layer of stator disc electrode; the rotor disc conducting rod transmits charges output by the commutator to each rotor disc electrode; the commutator is integrated on a rotor disc and synchronously contacts the stator disc and the rotor disc conductive rod to switch charges. According to the invention, through the electrode cluster and double-brush commutation structure, the structure and assembly of the motor are simplified, the number of brushes is reduced, the contact friction, noise and energy loss are reduced, the electrostatic field intensity or charge transmission efficiency is improved, and higher torque density, lower energy consumption and more stable and safer operation are realized under the same volume.

The invention discloses a force balance voltage modulation method of a Z-axis accelerometer, and belongs to the technical field of MEMS electrostatic driving. The Z-axis accelerometer comprises a mover mass block and a fixed type multifunctional multiplexing polar plate, a variable-spacing differential capacitor structure is formed, and displacement detection, driving force control and rigidity adjustment are achieved at the same time by multiplexing the structure. A PWM driving signal is generated through a dual PWM modulation method, sinusoidal modulation is carried out on the PWM driving signal and bias voltage together, a variable-spacing differential capacitor structure is used as a demodulator, a second-order mechanical vibration system is used as a low-pass filter, and a low-noise closed-loop driving torque is generated to stabilize the position of a mass block at a preset position. And meanwhile, low-noise direct-current static negative stiffness is generated, so that the system stiffness is reduced to a preset value. According to the invention, the variable-pitch differential capacitor structure can maintain the constant elastic coefficient of the system while generating the electrostatic driving torque, can provide sufficient control precision while reducing the leakage of driving signals, and can effectively suppress low-frequency noise.

The present invention provides: an electronic component which enables highly accurate move of a movable waveguide; an optical directional coupler; and a method for controlling an optical directional coupler.　An electronic component according to the present invention comprises: a first insulating part; a second insulating part which faces the first insulating part, while being relatively movable with respect to the first insulating part so that the distance between itself and the first insulating part changes; a first capacitor which comprises a first electrode that is provided on the first insulating part and a second electrode that is provided on the second insulating part; a second capacitor which comprises a third electrode that is provided on the first insulating part and a fourth electrode that is provided on the second insulating part; and an inductor which is connected to the second capacitor so as to constitute a resonance circuit.

The invention discloses a constant elastic coefficient control method of a variable-spacing comb driver, and belongs to the technical field of electrostatic driving. The variable-spacing comb tooth driver is of a central symmetry structure and comprises a movable mass block and fixed type multifunctional reuse electrodes located on the two sides of a middle polar plate of the mass block, and the middle polar plate of the mass block and the multifunctional reuse electrodes on the two sides form a differential capacitor. The differential capacitor can multiplex four functions of displacement detection, rigidity adjustment, driving force control and position calibration, and the four functions avoid mutual interference of signals through different frequency distribution. Displacement of the mover mass block is identified in a capacitance detection mode, electrostatic resultant force is generated in a force balance mode to stabilize the position of the mover mass block at a preset calibration position, and meanwhile, electrostatic negative stiffness is generated to reduce the system stiffness to a preset value. According to the invention, the constant elastic coefficient of the driven system can be maintained while the variable-spacing comb tooth driver generates the electrostatic driving force.

This invention relates to an apparatus for differentially driving an electrostatic drive unit of a microelectromechanical sound-generating device implemented in a microelectromechanical system (MEMS). The drive unit has a movable element having a first electrode, which is electrostatically drivable by a second electrode and a third electrode of the drive unit.

To provide an electrostatic actuator which can lower even a compact and light-weight existing driver of several hundreds V to achievable driving voltage.SOLUTION: An electrostatic actuator uses electrostatic force generated between a pair of electrodes by a voltage operation on the pair of electrodes as driving force. The electrostatic actuator includes: the pair of electrodes; an insulating layer to be a layer of insulating liquid provided between the pair of electrodes; and a cover layer provided between the pair of electrodes and the insulating layer. The cover layer is a material having a dielectric constant higher than that of polyimide and having small elasticity.SELECTED DRAWING: Figure 4

The present disclosure relates to a MEMS structure comprising a stator having stator comb teeth and a rotor having rotor comb teeth, where the stator comb teeth and the rotor comb teeth are interlaced with each other and form interlaced rows, and in at least some portions of the interlaced rows where the aspect ratio is expected to change abruptly, the gaps between the comb teeth are gradually increased. An advantage of the arrangement structure of the present disclosure is that an undesirable fringe effect is eliminated during the deep reactive ion etching process, and a high quality MEMS structure is achieved.

The present application relates to the technical field of electrostatic motor, especially relates to a power-keeping body energy-saving motor, which comprises a first power-keeping body, a second power-keeping body and a third power-keeping body; a shielding shell, at least one opening is formed on the shell wall of the shielding shell; a rotor, wherein a rotating shaft is arranged, the first power-keeping body is connected to the rotating shaft through a connecting object and is installed in the cavity of the shielding shell; a stator, wherein the second power-keeping body and the third power-keeping body are arranged in the stator and are respectively installed on the outer surface of the shielding shell of the stator through auxiliary materials, and are installed on both sides of the opening. Because the electrostatic field generated by the second power-keeping body and the third power-keeping body can continuously generate electrostatic force on the charge of the first power-keeping body, and the shielding shell can hinder a part of the electrostatic field of the first power-keeping body from giving the shielding to the negative effect electrostatic field of the rotor, the rotor can continuously rotate towards the designed direction and do work to the outside, and the power-keeping body energy-saving motor has the advantages of large power, energy saving, environmental protection, wide application and the like.

An electrostatic actuator structure according to one aspect of the present disclosure includes a pump unit, an output unit and a passage unit. The inside of the pump unit is filled with a dielectric liquid 9. The output unit is deformed by an internal pressure change. The passage unit allows the inside of the pump unit and the inside of the output unit to communicate with each other. The output unit has welded parts which are arranged in a first direction and in each of which a first member constituting an upper surface and a second member constituting a lower surface are welded at peripheral edges of the first member and the second member. In the welded part, the welding width in at least a part of a pair of sides arranged in the first direction is larger than the welding width in a pair of sides arranged in a second direction orthogonal to the first direction.

The present invention relates to a method for controlling a microelectromechanical system by means of an electrical control signal alternating between a maximum voltage value (Vmax) and a minimum voltage value (Vmin), wherein during the transition from the maximum voltage value (Vmax) to the minimum voltage value (Vmin), the value of the voltage of the electrical control signal decreases monotonically from the maximum voltage value (Vmax) to the minimum voltage value (Vmin), the signal being: a first slope between a maximum voltage value (Vmax) and a first voltage threshold (Vend); a second slope between the first voltage threshold (Vend) and the second voltage threshold (Vstart), the second slope having an absolute value less than the first slope; and a third slope between a second voltage threshold (Vstart) and a minimum voltage value (Vmin), the third slope being higher in absolute value than the second slope.

A polarization film with a substrate is provided that has a high surface charge density and a high degree of molecular orientation, even without containing fluorine atoms. [Solution] The polarization film with a substrate according to the present disclosure comprises a substrate and a polarization film formed on at least one of two main surfaces of the substrate. The polarization film contains a compound represented by the following formula (I). In formula (I), Z represents either a polar functional group or an organic group. 1 and A 2 X represents a single bond or a divalent linking group. 1 and X 2 This represents the other of a polar functional group and an organic group. JPEG2026076969000023.jpg2069

The invention belongs to the technical field of motors, and particularly relates to a mute and efficient microwave oven stirring blade direct drive motor and a directional self-starting method.The mute and efficient microwave oven stirring blade direct drive motor comprises a frame assembly, a stator disc, a charge exchange cylinder, a rotor disc, a rotating shaft and stirring blades; positive and negative electrode exchange electrodes are arranged on the outer side of the circumference of the charge exchange cylinder, a plurality of electrode plates are arranged on the rotor disc in the radial direction, tail parts are arranged at the tail ends of the electrode plates to achieve directional self-starting, and the rotor disc and the stator disc are alternately stacked and arranged and drive the stirring blades to rotate through the rotating shaft. The static motor is used for directly driving the low-speed light load, stable low-speed output can be achieved without a speed reducer, the operation power consumption is lower than 20 milliwatts, the energy efficiency is high, the driving process is almost noiseless, meanwhile, the current is automatically reduced to be close to zero in the locked-rotor process, motor damage is avoided, the overall structure is compact and reliable, and the device is suitable for efficient mute driving of the microwave oven stirring blade.

To appropriately detect a state of at least one of two opposed members while appropriately controlling the state of at least one of the two members.MEANS: An actuator (1) comprises a first member (11), and a second member (12) opposed to the first member. A first control electrode (113) and a first detection electrode (114) are formed on a first opposed surface (111) opposed to the second member, of the first member. A second control electrode (123) and a second detection electrode (124) are formed on a second opposed surface (121) opposed to the first member, of the second member. The first control electrode and the first detection electrode, and / or the second control electrode and the second detection electrode, are electrically isolated from each other.SELECTED DRAWING: Figure 1

[Task] Provision of an oscillating power generating element in which it is possible to sufficiently reduce a parasitic capacitance that may occur in the oscillating power generating element and thereby increase the frequency band in which power generation is possible.[Solution] Oscillating current-generating element comprising stationary electrodes, which include a plurality of comb-shaped electrodes, movable electrodes, which include a plurality of comb-shaped electrodes that engage with the comb teeth of the stationary electrodes, and elastic support elements that ensure that the movable electrodes move relative to the stationary electrodes in the same plane in a certain direction, characterized in that, in a state in which at least one of either the stationary electrodes or the movable electrodes is electrically charged, the engagement length of the stationary electrodes and the movable electrodes and the deflection magnitude of the elastic support elements are equal, or the engagement length of the stationary electrodes and the movable electrodes is smaller than the deflection magnitude of the elastic support elements.

A tire assembly includes a tire mounted on a vehicle, a first power generation body unit, and a second power generation body unit that is different from the first power generation body unit. The first power generation body unit includes a power generation body disposed on an inner surface of the tire, and a pushing member fixed to the inner surface of the tire on both sides of the power generation body across the power generation body along a circumferential direction of the tire, the pushing member being deformable as the tire deforms. The second power generation body unit includes a power generation body fixed to the inner surface of the tire, and a weight member superimposed on the power generation body from a side opposite the inner surface across the power generation body.

To provide an electrostatic motor 1 having a simple structure and capable of being reduced in weight.SOLUTION: In an electrostatic motor 1, all polarities of stator electrodes 50a to 50h, 51a to 51h, 52a to 52h and 53a to 53h are set to a negative polarity. Therefore, creeping discharge does not occur in a stator 10. All polarities of rotor electrode 60a to 60h, 61a to 61h and 62a to 62h are sequentially switched from one of the positive and negative polarities to the other. Therefore, creeping discharge does not occur also in a rotor 20. Thus, an electrical insulating member can be eliminated in the stator 10 and the rotor 20.SELECTED DRAWING: Figure 1

A resonant member of a MEMS resonator oscillates in a mechanical resonance mode that produces non-uniform regional stresses such that a first level of mechanical stress in a first region of the resonant member is higher than a second level of mechanical stress in a second region of the resonant member. A plurality of openings within a surface of the resonant member are disposed more densely within the first region than the second region and at least partly filled with a compensating material that reduces temperature dependence of the resonant frequency corresponding to the mechanical resonance mode.

The present invention relates to a system (100) for generating electrical energy from a volume of water. The system (100) comprises a base layer (20) and a collection layer (60). The base layer (20) includes a substrate (30) with a plurality of cavities (40) dimensioned to hold water, each cavity having a surface coating (50). Inlet (60a) and outlet (60b) channels facilitate water circulation through the cavities, enabling the formation of a charge-separated zone. The collection layer (40) includes conductive elements (70) aligned with the charge-separated zone to extract electrical energy by creating a potential difference. The layers are assembled to ensure precise alignment and are sealed to prevent leakage. A low molar ion concentration aqueous solution (85) sustains the charge-separated zone (80), allowing efficient and continuous energy extraction when connected to an external load.

The tire assembly includes a tire attached to a vehicle, a first power generator unit, and a second power generator unit different from the first power generator unit. The first power generator unit has: a power generator disposed on the inner surface of the tire; and a pressing member fixed to the inner surface of the tire on both sides of the power generating body so as to straddle the power generating body in the circumferential direction of the tire, the pressing member being deformable in accordance with the deformation of the tire. The second power generator unit has: a power generator fixed to the inner surface of the tire; and a weight member that overlaps the power generating body from a side opposite to the inner surface with the power generating body therebetween.

Disclosed herein are embodiments of electrostatic end effectors and methods of manufacturing the same. In one embodiment, the electrostatic end effector comprises a ceramic base, a first electrode layer coupled to the ceramic base, and a second electrode layer coupled to the ceramic base. The electrostatic end effector is configured to generate an electrostatic force on a substrate in response to a voltage applied to the first electrode. The electrostatic force on the substrate can increase the frictional force on the substrate, which can enable the end effector to accelerate at a faster rate than current technology without the substrate slipping on the end effector.

The present invention relates to a micromechanical component for an actuator and / or sensor device with a deformable membrane (10) with electrodes (18), wherein, when the electrodes (18) are at the same potential, at least one first membrane surface (10a) is oriented perpendicular to a first spatial direction (y), parallel to a second spatial direction (z), and parallel to a third spatial direction (x) perpendicular to the second spatial direction (z), and simultaneously the electrodes (18) each have a maximum electrode height in the first spatial direction (y), a maximum length in the second spatial direction (z), and a maximum width in the third spatial direction (x) such that the maximum length is at least a factor of 5 greater than the maximum width, and the maximum electrode height is at least a factor of 1.5 greater than the maximum width.and wherein at least a part of each of the electrodes (18) has etch marks from at least one etching process with an etching direction oriented parallel to the second spatial direction (z) and is formed from etched residual material of at least one electrically conductive electrode material layer.

An electrostatic actuator according to one aspect of the present disclosure comprises a flexible shell, a dielectric liquid contained inside the shell, and a plurality of electrodes positioned outside the shell. The shell comprises a junction part positioned at the center, and a plurality of pump parts that communicate with the junction part and are aligned in the circumferential direction centered on the junction part. The pump part has a first side surface positioned at one end in the circumferential direction, and a second side surface positioned at the other end in the circumferential direction. The plurality of electrodes are positioned on the first side surface and the second side surface of each pump part.

The invention relates to a microelectromechanical device (1) for generating or detecting fluid pressure, comprising a functional unit (2), wherein the functional unit (2) has a movable functional element (3) coupled to a transmission element (4) for deflecting the functional element (3) or for detecting a deflection of the functional element (3), and wherein the device (1) has an electrostatic guide unit (5) for guiding the transmission element (4) with a stationary bearing electrode (6) and a sliding electrode (7) movable relative to the bearing electrode (6). The invention further relates to a microelectromechanical loudspeaker, a microelectromechanical microphone, and a microelectromechanical fluid conveying device comprising such a device.