200results about "Electrostatic motors" patented technology

The invention belongs to the technical field of chip heat dissipation, and particularly relates to a chip heat dissipation device based on a thermoelectric sheet driven electrostatic fan. The shell is used for loading the electrostatic motor and is internally provided with a flow guide channel for guiding the airflow direction; one end of the heat dissipation piece is provided with a chip attaching surface which is used for being attached to an external chip; one end of the thermoelectric sheet is connected with one end, deviating from the chip binding surface, of the heat dissipation piece, and the other end of the thermoelectric sheet is exposed in the air; wherein the thermoelectric piece is electrically connected with the electrostatic motor through the boost circuit board and used for outputting high-voltage direct current to the electrostatic motor, and the shell is located on one side outside the heat dissipation piece. The chip heat dissipation device has the advantages that the chip heat dissipation device is flexible and variable in structural layout, the whole device is flatter, the requirement for the space in electronic equipment can be met, the structure and principle are simple, complex components and control circuits are not needed, passive control over the chip temperature can be achieved, and the chip heat dissipation device is efficient, saves energy and is suitable for large-scale popularization and application. No extra energy is consumed, and the heat dissipation efficiency is higher.

The present disclosure, in some embodiments, relates to a MEMS (Microelectromechanical systems) structure. The MEMS structure includes a first comb structure having a first plurality of comb fingers extending outward from a first branch. A second comb structure has a second plurality of comb fingers extending outward from a second branch. The first plurality of comb fingers are laterally interleaved between the second plurality of comb fingers. The first plurality of comb fingers respectively include a weighted core material and one or more peripheral materials. The weighted core material has a larger density than the one or more peripheral materials.

MEMS actuators having micro spring structures and methods of fabricating the same are provided. An example MEMS actuator includes a first micromechanical arm array including multiple first micromechanical arms spaced from each other in a first horizontal direction and a second micromechanical arm array including multiple second micromechanical arms spaced from each other in the first horizontal direction. The first and the second micromechanical arm arrays are interposed in the first horizontal direction. The MEMS actuator further includes a metal connection structure connected to each first micromechanical arm, and a vertical micro spring structure disposed between the metal connection structure and one of the second micromechanical arms. The vertical micro spring structure includes an upper portion connected to the metal connection structure and a lower portion connected to a top end of the second micromechanical arm.

An electro-hydraulic actuator includes a deformable shell defining an enclosed internal cavity and containing a liquid dielectric, first and second electrodes on first and second sides, respectively, of the enclosed internal cavity. An electrostatic force between the first and second electrodes upon application of a voltage to one of the electrodes draws the electrodes towards each other to displace the liquid dielectric within the enclosed internal cavity. The shell includes active and inactive areas such that the electrostatic forces between the first and second electrodes displaces the liquid dielectric within the enclosed internal cavity from the active area of the shell to the inactive area of the shell. The first and second electrodes, the deformable shell, and the liquid dielectric cooperate to form a self-healing capacitor, and the liquid dielectric is configured for automatically filling breaches in the liquid dielectric resulting from dielectric breakdown.

Microelectromechanical systems (MEMS) have found widespread applications across biotechnology, medicine, communications, and consumer electronics. These are typically one-dimensional MEMS (e.g. rotation, linear translation on a single axis) or two-dimensional MEMS (e.g. linear translation in two directions in the plane of the MEMS). It would be beneficial therefore for designers of components, circuits, and systems to exploit MEMS elements that produce both out-of-plane and in-plane motion thereby allowing for novel two-dimensional and three-dimensional MEMS micropositioners.

An artificial muscle including a housing, an electrode pair positioned in an electrode region of the housing, the electrode pair including a first electrode and a second electrode, the first electrode and the second electrode each including a pair of tab portions and a bridge portion, the pair of tab portions extending parallel to one another to define a gap portion between the pair of tab portions, the gap portion having a constant gap width extending along a tab length of the pair of tab portions, the bridge portion interconnecting the pair of tab portions, and a dielectric fluid housed within the housing, wherein the electrode pair is actuatable between a non-actuated state and an actuated state such that actuation from the non-actuated state to the actuated state directs the dielectric fluid into an expandable fluid region of the housing.

The invention provides a wireless passive self-powered ubiquitous intelligent sensing system based on vibration energy collection. According to the system, the vibration energy of the rail train is converted into electric energy, self power supply of the sensor and the communication unit is achieved, the multi-mode sensing and wireless data transmission functions are integrated, and limitation of external power supply and complex wiring is avoided. The system can accurately monitor the running state and the key component performance of the train in real time on the premise of not increasing the operation cost and the maintenance burden, and has the advantages of flexible layout, high energy utilization rate, rich perceptual information, low cost, high reliability and the like; and a solid support is provided for the technology upgrading of the rail transit train from limited perception to generalization perception and from single perception to multi-mode perception.

The invention relates to the technical field of micro aircrafts, in particular to an atmospheric potential energy self-sustaining aircraft. Comprising a stator component provided with a positive electrode and a negative electrode which are distributed crosswise in the circumferential direction; a rotor member having a conductive sheet; the conducting strip can obtain charges from the positive electrode or the negative electrode of the stator part, so that the rotor part is driven to rotate; the rotor wing assembly is connected to the rotor component; the positive charge collecting part is electrically connected with the positive electrode and used for collecting positive charges in the atmosphere and supplying the positive charges to the positive electrode; and the grounding part is electrically connected with the negative electrode and is used for grounding the negative electrode. By arranging the positive charge collecting component and the grounding component, the aircraft can directly obtain electric energy from an atmospheric electric field, and the natural potential difference between the high altitude and the ground is used for driving the rotor component to rotate, so that continuous power is provided for the aircraft. The mode does not depend on a traditional storage battery or a solar cell, the problems that an existing micro aircraft is short in endurance time and limited by light conditions are solved, and cross-day and cross-night continuous flight can be achieved.

The embodiment of the invention provides a chip structure, a manufacturing method and a related device, and the chip structure comprises a functional chip; the heat dissipation chip is bonded to the functional chip; the heat dissipation chip comprises a heat dissipation sheet which is of a symmetrical structure; the connecting parts are located at the two ends of the cooling fins and connected with the frame through rotating shafts; the capacitor structure is located on the outer side of the connecting part and used for providing power for movement of the cooling fins; the frame surrounds the cooling fins and the connecting part, and the frame, the cooling fins and the connecting part are arranged at intervals. According to the embodiment of the invention, the heat dissipation problem of the chip can be solved.

The invention relates to a microelectromechanical actuator structure comprising a microelectromechanical chip with a chip frame and a drive structure. The drive structure comprises a dopable material. The drive structure includes a first drive unit and a second drive unit. The first drive unit comprises a first substrate and a first electrode structure. The first substrate has a first doping. The first electrode structure has a doping inverse to the first doping. The second drive unit comprises a second substrate and a second electrode structure. The second substrate has a second doping. The second electrode structure has a doping inverse to the second doping. Thus, a pn junction is formed between each of the substrates and the second electrode structures. The first electrode structure comprises at least two first electrodes.The second electrode structure has at least one second electrode. The first electrodes are arranged horizontally next to each other in a first electrode plane. The second electrode is arranged horizontally in a second electrode plane.

The invention discloses a soft electrostatic torsion driving unit and method and a driver, the soft electrostatic torsion driving unit comprises an output part, a torsion deformation structure and a driving base which are connected in sequence, the torsion deformation structure comprises an elastic element and a flexible electrode, and the driving end and the driven end of the flexible electrode are relatively twisted by a set angle; the driven end of the flexible electrode is connected with the output part, and the driving end of the flexible electrode is connected with the driving base; two ends of the elastic element are respectively connected with the driving base and the output part, a conductive layer and an insulating layer are arranged on the driving base, and the active end of the flexible electrode is arranged above the insulating layer; a liquid dielectric output device is arranged in the driving base, an outlet of the liquid dielectric output device is located at the edges of the conducting layer and the insulating layer, and the elastic element is in a pre-tightening state; the invention has the advantages of compact structure, high driving efficiency, high response speed and large torsion angle, and can provide a new technical solution for the design of a complex flexible driving device.

The invention discloses a pedestrian bridge vibration comfort evaluation platform considering human-bridge interaction. The pedestrian bridge vibration comfort evaluation platform comprises a self-energized sensing vibration force measurement platform and an analysis control system, the self-energized sensing vibration force measuring platform comprises a plurality of self-energized sensing force measuring tables and a servo control motor; friction nanometer generator self-powered three-way force measuring blocks are densely distributed on the self-powered sensing force measuring table; the analysis control system comprises a data acquisition module, a feedback control module and a data output module, acquires a three-dimensional pedestrian load on the self-energized sensing vibration force measuring platform in real time, calculates bridge dynamic response based on a pedestrian bridge finite element model, and further feeds back and controls the vibration state of the self-energized sensing vibration force measuring platform to simulate the actual vibration condition of the bridge; and finally, evaluating the vibration comfort of the bridge according to the dynamic response characteristics of the bridge in the whole loading process. According to the invention, real-time interaction between the computer end and the self-energized sensing vibration force-measuring platform is realized, sensing energy consumption is reduced, and a pedestrian bridge vibration comfort assessment result closer to a real situation is obtained.

An electrostatic actuator for translational motion between a stator and a slider in a longitudinal direction (X), comprising a stator driving electrodes and slider driving electrodes arranged with a respective pitch along said direction (X), wherein said actuator is driven by n power supply outputs and the stator and / or slider driving electrodes are interconnected into n stator and / or slider power busses, characterised in that said slider and stator busses are such that the connection of the n stator busses is configured in a predetermined order, while the connection of the n slider busses are configured in a different predetermined order, each of said n power supply outputs are configurable to provide different phases of time-varying power allowing to create a first and a second potential distribution travelling over the pitch of the stator or slider driving electrodes, in the opposite direction to each other.

An electro-hydraulic artificial muscle with three-dimensional interactive stacked electrodes includes at least two flexible conductive electrodes wrapped by a flexible insulation material. The flexible conductive electrodes are interactively stacked, immersed in a fluid dielectric and then are wrapped by a flexible sealing layer. Two ends of the flexible conductive electrodes that are three-dimensionally interactively stacked are led out from the flexible sealing layer to be connected with an external power supply. The two ends of the flexible conductive electrodes that are three-dimensionally interactively stacked are connected with the flexible sealing layer. Under the action of an applied electric field, the flexible conductive electrodes wrapped by the flexible insulation material break down the fluid dielectric and approach each other. Simultaneously, the fluid dielectric between the flexible conductive electrodes wrapped by the flexible insulation material is extruded.

A method of calibrating a resonator having a resonant member that can vibrate in a first mode of vibration, and a calibration electrode that is spaced from a capacitively coupled to the resonant member, the method comprises: applying a polarization voltage to the resonant member and a calibration voltage to the calibration electrode, wherein the polarization voltage is a negative voltage; vibrating the resonant member such that the resonant member vibrates in the first mode of vibration; measuring a frequency parameter of the resonant member; determining if the frequency parameter is in compliance with a predetermined threshold; and if the frequency parameter is not in compliance with the predetermined threshold, adjusting the frequency parameter to be in compliance with the predetermined threshold by adjusting at least one of the polarization voltage and the calibration voltage.

An artificial muscle including a housing, an electrode pair positioned in an electrode region of the housing, the electrode pair including a first electrode and a second electrode, the first electrode and the second electrode each including a pair of tab portions and a bridge portion interconnecting the pair of tab portions, and a first closing aid provided exteriorly of the housing opposite the electrode pair and applying a force in a direction toward the electrode region of the housing, wherein the electrode pair is actuatable between a non-actuated state and an actuated state such that actuation from the non-actuated state to the actuated state results in attraction of the first electrode and the second electrode.

A micro-electromechanical system (MEMS) structure is useful as an actuator for moving an image sensor for optical image stabilization. The MEMS actuator includes one or more micromechanical arm arrays. Each arm array includes a first array of spaced-apart fingers formed from a piezoelectric material, and a second array of spaced-apart fingers formed from an electrically conductive material. The distal ends of the first array of fingers and the distal ends of the second array of fingers are interposed between each other. Micro-springs connect the interposed distal ends of each set of adjacent fingers together. A metal cap is present above the distal ends of the first array of fingers and the distal ends of the second array of fingers. Micro-springs connect the metal cap to the distal end of each finger of the first array of fingers. This structure has increased stability and strength.

A method for manufacturing an optical device includes: a first step of preparing a semiconductor substrate that includes a portion corresponding to a base, a movable unit, and an elastic support portion; a second step of forming a first resist layer in a region corresponding to the base on a surface of a first semiconductor layer which is opposite to an insulating layer; a third step of forming a depression in the first semiconductor layer by etching the first semiconductor layer up to an intermediate portion in a thickness direction using the first resist layer as a mask; a fourth step of forming a second resist layer in a region corresponding to a rib portion on a bottom surface of the depression, a side surface of the depression, and the surface of the first semiconductor layer which is opposite to the insulating layer; and a fifth step of forming the rib portion by etching the first semiconductor layer until reaching the insulating layer using the second resist layer as a mask.

The invention relates to a device which is formed by organically combining numerous devices capable of implementing same or different operations on charges, and periodically charges and discharges staggered variable plate capacitors by utilizing direct-current electric energy. The plate electrode is periodically driven to move in parallel by the electric field gravitation which is formed by the periodically stored electric energy and is parallel to the plate electrode, so that the electric energy is periodically, efficiently and cheaply converted into kinetic energy to be continuously output, or a variable plate capacitor device is periodically charged; and the periodically stored electric energy interacts with power formed by kinetic energy converted from wind energy, water energy, potential energy, chemical energy, nuclear energy and the like due to electric field gravitation parallel to a plate electrode formed by dislocation of the plate electrode, so that the kinetic energy is periodically, efficiently and cheaply converted into the electric energy to be continuously output.

The present invention relates to a microelectromechanical system (10) comprising a drive module (200), the drive module (200) comprising a fixed drive part (210), a movable drive part (220), and and a suspension (230), wherein the movable driving part (220) can move in a first direction (A) relative to the fixed driving part (210) as a result of an electrostatic force causing elastic deformation of the suspension (230), and the movable driving part (220) can move in a second direction (B) opposite to the first direction (A) relative to the fixed driving part (210) as a result of an elastic return force generated by the suspension (230), and the actuator (11) also comprises a stopper (24) which limits the movement of the first movable part (220) in the second direction (B) so that the elastic force generated by the suspension (230) is not canceled out.

A bending transducer includes a deflectable element, a microelectromechanical transducer extending along a centroid fiber of the deflectable element deflecting the deflectable element in a first direction when a first electrical signal is applied, and a second microelectromechanical transducer extending along the centroid fiber deflecting the deflectable element in a second direction opposite to the first direction when a second electrical signal is applied, the centroid fiber being located between sides of the first and second microelectromechanical transducers facing away from each other, and an electrical control configured to vary the first and second electrical signals depending on an input signal such that a change of the first electrical signal and a change of the second electrical signal depends on the electrical input signal, and the phases of the first and second electrical signals are shifted relative to each other. A bending transducer operated as sensor is also presented.

The invention belongs to the technical field of wheeled electric vehicles, and particularly relates to a wheeled electric vehicle based on electrostatic motor driving. A wheel; the electrostatic motors are installed on the two sides of the chassis frame and used for outputting power to the wheels. Wherein a high-pressure generator is mounted on the chassis frame; the electrostatic motor includes: a stator part including a positive electrode and a negative electrode connected to a high voltage generator; the rotor part comprises a conducting strip; and the conducting strip of the rotating part can obtain charges from the positive electrode and the negative electrode of the stator part, so that the rotor part is rotationally driven by the stator part to drive the wheel to rotate. The wheel type electric vehicle has the beneficial effects that compared with a traditional electromagnetic motor, the energy consumption efficiency of the wheel type electric vehicle driven by the electrostatic motor is obviously improved, particularly, the wheel type electric vehicle is more remarkable under the low-speed operation or frequent starting and stopping working condition, the zero heating characteristic under the low-speed or locked-rotor working condition is achieved, and the energy consumption efficiency is improved. And high efficiency can be maintained at a low rotating speed.

The present invention provides a rotary electrostatic adsorption driver, which includes a driver body. The driver body is a cylinder formed by a first outer frame, a second outer frame and a plurality of electrodes. Both ends of the electrodes are inserted into the holes of the first outer frame and the second outer frame and fixed. The number of electrodes is multiple and they are evenly distributed in the circumferential direction between the first outer frame and the second outer frame. A power supply assembly capable of supplying power to the electrodes. The driver body is placed on a supporting plane, and an electrostatic field is generated between the electrodes and the supporting plane. The electrodes are subjected to electrostatic adsorption force, and the driver body generates a rotational motion on the supporting plane under the action of the electrostatic adsorption force. This driver can directly drive the rotational motion by using the torque generated by adsorption, thereby reducing redundant structures.

The present disclosure relates to a system and method that produces thrust without a propellant or any physically moving parts. The disclosed method produces thrust by accelerating electrons between a multilayer capacitive stack and taking advantage of a conductive dampener that makes up a single thrust unit. For example, as power is applied to a first conductive layer separated by a second conductive layer by at least one dielectric layer, the electrons accelerating from the first layer produce a thrust whose direction is determined by the presence of a cover layer. Multiple middle conductive layers with corresponding dielectric layers can provide thrust scalability. Stacked thrust units with a minimum of a calculated distance between said units can also scale the thrust observed. Specialty materials with built in dielectrics such as anodized aluminum can further improve the thrust unit.

An illustrative electrostatic machine includes a shaft that is configured to rotate about an axis, a rotor electrode, and a stator electrode. The rotor electrode and the stator electrode are separated by a gap and form a capacitor. The rotor electrode is fixed to the shaft. The electrostatic machine can also include a housing that is configured to enclose the rotor electrode, the stator electrode, and at least a portion of the shaft. The stator electrode is fixed to the housing. A dielectric fluid fills a void defined by the housing, the rotor electrode, and the stator electrode.

In one or more arrangements, an electrostatic machine is presented that includes a rotor and a stator. The rotor has a first set of terminals configured to receive a first multiphase AC drive voltage (VR) and the stator has a second set of terminals configured to receive a second multiphase AC drive voltage (VS). When VR is applied to the first set of terminals and VS is applied to the second set of terminals, the rotor and the stator generate respective electric fields which, when properly aligned, cause the rotor to produce torque relative to the stator and induce rotational motion when sufficient torque is generated.

The present invention discloses a pedestrian bridge vibration comfort assessment platform that takes into account human-bridge interaction. The platform comprises a self-powered sensing vibration force measurement platform and an analysis and control system. The self-powered sensing vibration force measurement platform includes multiple self-powered sensing force platforms and servo-controlled motors. The self-powered sensing force platforms are densely packed with friction nanogenerator self-powered three-dimensional force measurement blocks. The analysis and control system comprises three modules: data acquisition, feedback control, and data output. The modules collect the three-dimensional pedestrian load on the self-powered sensing vibration force measurement platform in real time, calculate the bridge dynamic response based on a finite element model of the pedestrian bridge, and then feedback-control the vibration state of the self-powered sensing vibration force measurement platform to simulate the actual bridge vibration. Finally, the bridge vibration comfort is assessed based on the dynamic response characteristics of the bridge throughout the loading process. The present invention enables real-time interaction between a computer and the self-powered sensing vibration force measurement platform, reducing sensing energy consumption while obtaining pedestrian bridge vibration comfort assessment results that are closer to reality.

An example electrostatic machine including a rotor stack comprising a plurality of a rotor plates each including a plurality of rotor electrodes positioned on each side of the rotor plate; and at least one rotor via comprising an electrical connection between the plurality of rotor electrodes on a first side of the rotor plate and the plurality of rotor electrodes on a second side of the rotor plate; and a stator stack comprising a plurality of stator plates, each including a plurality of stator electrodes positioned on each side of the stator plate; and at least one stator via comprising an electrical connection between the plurality of stator electrodes on a first side of the stator plate and the plurality of stator electrodes on a second side of the stator plate.

The present disclosure provides a metasurface device and a method for manufacturing a metasurface device, an antenna and a communication device. The metasurface device includes: a substrate; and a metal layer on the substrate and having a plurality of openings therein; and a plurality of phase control structures on a side of the metal layer away from the substrate, and in one-to-one correspondence with the plurality of openings; and each phase control structure includes a baffle and at least one micro-mechanical driver, the baffle is connected to the at least one micro-mechanical driver, which is configured to actuate the baffle to shield a corresponding opening in response to a received signal.

An optical device includes: a base; a movable portion which includes an optical function portion; an elastic support portion which supports the movable portion so that the movable portion is movable along a first direction; a first comb electrode which is provided to the base; and a second comb electrode which includes a plurality of second comb fingers provided to at least one of the movable portion and the elastic support portion. The elastic support portion includes a torsion bar extending along a second direction perpendicular to the first direction and a lever connected to the torsion bar. The second comb electrode is provided to a portion of at least one of the movable portion and the elastic support portion, the portion being located on the optical function portion side with respect to the torsion bar. The first comb finger and the second comb finger which are adjacent to each other face each other in a direction in which the movable portion has higher external force resistance, of the second direction and a third direction perpendicular to the first direction and the second direction.