37 results about "Electroactive polymers" patented technology

The present application relates to a kind of adjustable blade type water turbine upper crown leak stop device, including multiple flexible blade type leak stop mechanism, flexible blade type leak stop mechanism includes flexible blade and adjustable electroactive polymer layer, flexible blade is set in runner upper crown gap and runner upper crown outlet position, the inside of flexible blade is provided with adjustable electroactive polymer layer, flexible blade type leak stop mechanism is provided with wireless flow sensor between, the power line of wireless flow sensor and adjustable electroactive polymer layer is connected servo voltage stabilizer feeder respectively, servo voltage stabilizer feeder is connected with lower computer, lower computer and wireless flow sensor are all connected with internet of things intelligent controller communication.This application sets up adjustable electroactive polymer layer, which can adjust posture through servo voltage stabilizer feeder, when water flow enters gap cavity from runner around along upper crown gap, flexible blade provides centrifugal force for water, under the action of centrifugal force, water in upper crown cavity is discharged to achieve leak stop effect.

A test device for monitoring sterilization using a steam sterilant in a chamber is provided. The test device includes a test stack. The test stack includes an entrance layer including an entrance hole. The test stack further includes a sensor layer spaced apart from the entrance layer. The sensor layer includes a pair of electrodes disposed on the sensor layer. The test stack further includes a sensor coating disposed on a portion of the sensor layer and including an electrically active polymer. The test stack further includes a channel layer disposed between the entrance layer and the sensor layer. The channel layer includes an internal channel. The internal channel is configured to allow a flow of steam sterilant from the entrance hole to the sensor coating.

To provide a system and method for manufacturing affordable carbon fiber insulation as an alternative to glass fiber insulation to improve energy efficiency in a building environment.SOLUTION: An embodiment disclosed herein relate to a system and a method for processing coal. A direct air capture system includes a voltage source and a coal-derived electroactive polymer electrically connected to the voltage source, in which applying voltage to the coal-derived electroactive polymer causes carbon dioxide to bind to the coal-derived electroactive polymer. The method for capturing carbon dioxide includes introducing the electroactive polymer into a gas stream containing carbon dioxide, applying voltage to the electroactive polymer to bind the carbon dioxide to the electroactive polymer, and reversing the polarity of the voltage applied to the electroactive polymer to release the carbon dioxide.SELECTED DRAWING: Figure 1

Electroactive polymers having redox activatable moieties pendant from a polymeric backbone, and compositions of the electroactive polymers are disclosed. The polymers are useful in membranes for electrochemical cells, and for facilitation of electrolytically-based carbon dioxide enrichment.

This utility model discloses an OLED substrate encapsulation assembly, comprising: a substrate, a display functional layer fixedly connected to the top of the substrate, and a cover plate snapped onto the top of the substrate; and a stabilizing assembly, the stabilizing assembly including a frame adhesive, the frame adhesive being fixedly connected to the outer sides of both sides of the display functional layer. This utility model improves the adhesion between the frame adhesive and the substrate by utilizing the strong adhesion between the silicon oxynitride layer and the frame adhesive material, thereby improving the encapsulation efficiency of the frame adhesive. Simultaneously, the combination of slots and blocks enhances stability during the assembly of the substrate and the cover plate, preventing detachment and cracking. The frame adhesive further enhances the stability of the overall device assembly process. Furthermore, the electroactive polymer layer can deform under the influence of an electric field. During encapsulation, by controlling the electric field applied to the electroactive polymer layer, the electroactive polymer layer can use mechanical pressure to expel residual gas from the encapsulation cavity between the display functional layer and the cover plate.

In some embodiments, the present invention is directed to an actuator which includes at least the following: a pre-stretched electro-active polymer film being pre-stretched in a single or biaxial planar directions; at least one first semi-stiff conductor attached to a first surface of the pre-stretched electro-active polymer film, wherein the first surface is parallel to the single or biaxial planar stretch directions; at least one second semi-stiff conductor attached to a second surface of the pre-stretched electro-active polymer film, wherein the second surface is opposite to the first surface; where the semi-stiff conductors are configured to: fix the pre-stretched electro-active polymer film in a pre-stretched state and allow the pre-stretched electro-active polymer film to expand; a pair of mechanical connectors coupled to each end of an active region of the pre-stretched electro-active polymer film.

A test device for monitoring sterilization using a steam sterilant in a chamber is provided. The test device includes a test stack. The test stack includes an entrance layer including an entrance hole. The test stack further includes a sensor layer spaced apart from the entrance layer. The sensor layer includes at least one pair of electrodes disposed on the sensor layer. The test stack further includes at least one sensor coating disposed on at least one portion of the sensor layer and including an electrically active polymer. The test stack further includes an intermediate layer disposed between the entrance layer and the sensor layer. The intermediate layer is disposed in fluidically connects the entrance hole and the at least one sensor coating. The intermediate layer is configured to allow a flow of the steam sterilant received from the entrance hole to the at least one sensor coating.

Performance requirements of electroactive polymer materials used for transducer devices include dielectric breakdown strength, Young's modulus, dielectric constant, thickness, and electromechanical instability. There are correlation relationships therebetween but definitions of the correlation relationships have not been achieved. Therefore, it is necessary to search for an excellent material by trial and error, which requires a great deal of work. Disclosed herein is a curable elastomer composition that includes a compound having a high dielectric functional group. A cured product of the composition satisfies the following formula:E=α⁡(Yε0⁢εr)0.5where E is the dielectric breakdown strength in the range of 50 V / μm to 200 V / μm, α is a constant in the range of 0.4 to 0.9, Y is Young's modulus and is in the range of 0.001 MPa to 10 MPa, εγ is a specific dielectric constant and is 100 or less, and ε0 represents the dielectric constant of vacuum.

The invention relates to a detection device comprising: a flexible substrate (20) comprising a first surface (30) and a second surface opposite the first surface; a plurality of transducers (21, 22) attached to the substrate; and a plurality of electrical tracks (23, 24) extending over the substrate. Each transducer has: an electroactive polymer film (50); and a first and a second electrode (54) that are stacked on either side of the film. Each of the first and second electrodes of the corresponding transducer (21, 22) has a conductive layer in contact respectively with a first face and a second face (66) of the film.

The invention relates to the technical field of heat energy engineering, and discloses a centrifugal negative pressure heat dissipation control method which comprises the following steps: initializing a centrifugal heat dissipation system, and configuring a vortex generator, a self-adaptive porous medium shunting layer, a sound wave generator, an airflow deflection memory matrix, a pressure sensor and a temperature sensor, initial parameters are set, and the negative pressure gradient and the heat source temperature are collected; when the temperature of the heat source exceeds a threshold value, the vortex generator is driven to generate micro-scale vortexes through vaporization of the low-boiling-point phase change medium; adjusting the pore opening and closing proportion of the porous medium shunting layer through the thermosensitive shape memory alloy, and guiding eddy current to a high-heat area; the curvature of the inner wall of the air duct is adjusted through the electroactive polymer unit, an eddy current path is optimized, and the curvature state is recorded; through negative pressure gradient and temperature feedback, parameters of each assembly are dynamically adjusted, and closed-loop regulation and control of heat flow acoustoelectric multi-physics field coupling are achieved. Through cooperation of multiple physical fields, negative pressure field distribution is optimized, and the heat dissipation requirement of a high-heat-density scene is met.

The invention provides an active pneumatic control system based on an electroactive polymer fiber array and a miniature flight detection device, belongs to the technical field of miniature robots and intelligent materials, and aims to solve the problem that a passive wind power aircraft cannot be actively controlled. The control system comprises a fiber array composed of a plurality of independent EAP flexible fibers, and a control module capable of applying accurate electric signals to specified fibers. The electric signals drive the fibers to generate reversible deformation, so that the collective pneumatic form of the fiber array is changed. The detection device mainly comprises a detector main body, a fiber system and an attitude control system. The fiber system is composed of a fiber array and is unfolded in a natural state to form a windward sail face providing pneumatic elasticity. The attitude control system symmetrically or asymmetrically drives the fiber array through a control module, changes the three-dimensional configuration of the sail surface, adjusts the aerodynamic characteristics in real time, and achieves the precise control of the flight height and direction. The passive aircraft is suitable for a deep space exploration environment.

An actuator mechanism having body, at least one actuator made of an electro-active polymer material which changes form depending on the electrical energy so that it triggers the body, at least two reinforcers which allow the actuator to change form are positioned on the actuator such that they remain opposite to each other and are connected to the actuator by clamping, thus transmitting movement to the body.

A pressure regulator that is used for various fluids is described. The regulator can be an integral part of a tank containing pressured fluid or a standalone device. The regulator uses an electroactive polymer (EAP) that can both increase and reduce its volume when exposed to a weak electrical pulse. The EAP through its change of volume controls the pressure of the fluid that is released from the fluid tank to a required pressure to be used for different applications. The control of the EAP is carried out by a pressure sensor and a controller. The controller uses the real time pressure data measured by the pressure sensor and adjusts the pressure of the fluid through the control of EAP.

The present application illustrates an electroactive polymer (EAR)-based device (10, 20) comprising: a dielectric layer (13, 23) arranged between two electrode layers (12, 14), the dielectric layer (13, 24) consisting of a stretchable material, the two electrode layers (12, 14) comprising a carbon-based electrically conductive material forming the stretchable layer and a solid oxidant material, the EAP-based device further comprises an additional dielectric layer (11, 15) of the stretchable material arranged on each of the two electrode layers (11, 13) and configured with the dielectric layers (13, 23) to seal each of the two electrode layers (12, 14) therein.

A soft haptic device and a local control method are disclosed. The soft haptic device includes a soft actuator. The soft actuator includes an electroactive polymer film, a patterned electrode, and a dielectric liquid injected between the electroactive polymer film and the patterned electrode. The soft actuator generates a reconfigurable shape such that a form of an output shape and a number of outputtable shapes are changed depending on the number of electrodes constituting the patterned electrode, a shape of the electrodes, and an arrangement of the electrodes.

The utility model discloses a kind of pumpless electric drive liquid cooling battery box devices, including integrally die-casting box, its inside is divided into battery cabin and cooling liquid cabin by partition, and its outer bottom is attached to set up the liquid cooling plate of inner flow channel;Inlet section and outlet section of flow channel are respectively corresponding to set up inlet flexible check valve and outlet flexible check valve, and the inner wall of flow channel between two valves is attached with electroactive polymer;Electroactive polymer is connected with alternating current power supply, generates radial periodic deformation drive cooling liquid from inlet flexible check valve to outlet flexible check valve directional flow. The utility model drives traditional pump by electroactive polymer deformation drive belt, and set up flexible check valve to prevent backflow, effectively reduce the power consumption of battery box liquid cooling system.

Spring support (14) for a suspension element of a motor vehicle (2), wherein the spring support (14) - an electroactive polymer and - has a piezoactive element (22).

Detection Device with Electroactive Transducers and Associated Detection Assembly. The invention relates to a detection device comprising: a flexible substrate (20) having first (30) and second opposing surfaces; a plurality of transducers (21, 22) fixed to the substrate; and a plurality of electrical tracks (23, 24) extending over the substrate. Each transducer comprises: a film (50) of electroactive polymer; and first and second electrodes (54) stacked on either side of said film. Each of the first and second electrodes of the corresponding transducer (21, 22) has a conductive layer in contact with a first and second face (66) of said film, respectively. Figure for the abstract: Figure 3

Membrane actuator (10) comprising a first frame part (12) and a second frame part (14), between which at least two membrane layers (16) are stacked and designed as electroactive polymer layers, wherein the first frame part (12) abuts a first surface (17a) of the at least two membrane layers (16) and the second frame part (14) abuts a second surface (17b) of the at least two membrane layers (16) opposite the first surface (17a), such that the membrane layers (16) are clamped in a single frame comprising both frame parts (12, 14), wherein the at least two membrane layers (16) each have at least one electrode (20, 22) and the electrodes (20, 22) of directly adjacent membrane layers (16) are arranged offset from each other.

The invention discloses a multi-modal perception blind person shopping guide method, and relates to the technical field of blind person shopping guide, and the method comprises the steps: carrying out the optimization of touch coding parameters according to the multi-modal touch perception characteristics of a user, and generating a personalized touch coding scheme of the user; mapping an array of electroactive polymer haptic cells into a dynamic touchpad based on the haptic coding scheme and environmental information within the target area; obtaining user interaction data, dynamically adjusting the complexity of the touch coding scheme, and updating the dynamic touch pad; and according to the spatial audio technology and the updated dynamic touchpad, guiding the user to a position corresponding to the target goods to complete shopping. According to the method, the unique tactile perception ability of each user is fully considered, excessive information is prevented from being transmitted in a complex environment, the user can receive and understand the tactile information more easily, the user can gradually adapt to the complex tactile information in the using process through a dynamic adjustment mechanism, and adaptability and practicability are improved.

The invention discloses an enhanced concrete structure self-repairing system and a construction method thereof, and relates to the field of building and civil engineering, a response barrier layer is formed by compounding an electroactive polymer grid and a microbial mineralization carrier plate, the microbial mineralization carrier plate contains bacillus pasteurii spores and calcium source sustained-release microspheres, and the calcium source sustained-release microspheres contain calcium source sustained-release microspheres. The conductive filler is a carbon nanotube and graphene hybrid, the repair middle layer comprises a shape memory polyurethane film and embedded repair microcapsules, and the capsule walls of the repair microcapsules are gelatin-Arabic gum composite wall materials. The intelligent self-repairing function of the concrete structure is achieved through innovative layered structure design, the response barrier layer is of an electroactive polymer grid and microorganism mineralization carrier plate composite structure, crack propagation is sensed in real time through a carbon nano tube / graphene conductive network, and a microorganism repairing mechanism is triggered; the problem of response lag of a traditional passive repair system is solved.

The present disclosure provides a negative electrode for a lithium secondary battery and a method for manufacturing same. The negative electrode for a lithium secondary battery according to the present disclosure comprises: a metal current collector substrate; an electrodeposition inducing layer formed on at least one side of the metal current collector substrate; and a protective layer formed on the electrodeposition inducing layer, wherein the electrodeposition inducing layer comprises a conductive polymer, and the protective layer may include an electroactive polymer.

The present disclosure is directed to the field of electroactive polymer transducers, actuators, sensors and generators. In particular, the disclosure pertains to a transducer element comprising an elastic body, a flexible film and an electrode attached to the flexible film. The electrode being in a corrugated state having elevations and depressions, and wherein the corrugated state is provided by a compression force of the elastic body or the flexible film. Moreover the present disclosure is directed to manufacturing of such transducer element and to a transducer with such transducer element.

The present disclosure relates to a loudspeaker, a loudspeaker adjusting method, an adjusting device, an electronic device and a medium. The loudspeaker comprises a diaphragm driving part, a cavity and a diaphragm unit arranged in the cavity. The diaphragm unit comprises a diaphragm layer having a first surface and a second surface arranged oppositely, and the first surface and the second surface are respectively provided with an electrode layer. The diaphragm layer is made of an electroactive polymer material. The diaphragm driving part is electrically connected with the electrode layer. In a power-on state, the diaphragm driving part is arranged to apply a driving electric signal to the diaphragm layer through the electrode layer to make the diaphragm layer vibrate. The diaphragm layer in the present disclosure is made of an electroactive polymer material, simulating artificial muscle. When the driving electric signal is applied to the diaphragm layer, the diaphragm layer vibrates to make the loudspeaker emit sound, which optimizes the sound quality and makes the sound closer to human voice, effectively improving the user experience.

The invention provides an intelligent air conditioner filter screen and a self-cleaning system and method, relates to the technical field of air conditioners, and solves the technical problems that a traditional air conditioner filter screen is difficult to clean and slow to dry, and secondary pollution is caused by bacteria breeding easily. The filter screen comprises a filter screen base body, the electret material layer is arranged on the outer side of the filter screen base body and is used for providing passive electrostatic adsorption; the conductive functional layer is arranged on the outer side of the electret material layer, is made of a transparent conductive material and has the functions of an electrostatic adsorption electrode, an electric control wetting driving layer and a Joule heat heating element; the electric response surface layer is arranged on the outer side of the conductive functional layer, consists of an electroactive polymer or a dipole molecule self-assembly film, and can generate molecular orientation reconstruction under the action of an electric field to realize reversible switching of surface wettability; the leeward side counter electrode and the filter screen base body are arranged at intervals, and an active electrostatic field is formed between the leeward side counter electrode and the conductive functional layer. The invention is used for the cabinet.

The present disclosure is directed to the field of electroactive polymer transducers, actuators, sensors and generators. In particular, the disclosure pertains to a transducer element comprising an elastic body, a flexible film and an electrode attached to the flexible film. The electrode being in a corrugated state having elevations and depressions, and wherein the corrugated state is provided by a compression force of the elastic body or the flexible film. Moreover the present disclosure is directed to manufacturing of such transducer element and to a transducer with such transducer element.

The application discloses a flexible driving unit and a flexible driver, and belongs to the field of power-assisted equipment. The flexible driving unit comprises a gel layer, a flexible anode and a flexible cathode, and the gel layer is prepared from an electroactive polymer and a plasticizer. The flexible driving unit is of a laminated structure, the flexible anode, the gel layer and the flexible cathode are alternately and sequentially arranged in layers, and the topmost layer and the bottommost layer of the flexible driving unit are either the flexible anode or the flexible cathode. The flexible driving unit has the characteristics of great flexibility and small rigidity, which is beneficial to improving the wearing comfort of the power-assisted equipment. Moreover, the flexible driving unit only shows the expansion and contraction movement form in the surface direction of the gel layer, which is not only beneficial to increasing the movement strength of the flexible driving unit in the surface direction of the gel layer, but also makes the flexible driving unit applicable to the joint movement type power-assisted equipment or the rehabilitation training type power-assisted equipment, thereby improving the driving strength of the power-assisted equipment.

The invention relates to the technical field of medical apparatus and instruments, in particular to an upper respiratory tract dilator for assisting a critical breathing patient in breathing, which comprises an artificial muscle tube and the like. The artificial muscle tube serves as extension power of the dilator, the connecting tube is connected to one end of the artificial muscle tube, the cavity supporting cylinder is arranged at the other end of the artificial muscle tube, and the cavity supporting cylinder serves as a main body of the dilator when a respiratory tract is blocked due to lesion and a mouth is opened. The artificial muscle tube made of the medical electroactive polymer can generate tiny deformation through electrical stimulation, so that the cavity supporting barrel is pushed to extend into a lesion blockage position, the device can be more accurately positioned in an area needing to be expanded, the preset shape of the device can be recovered after the device is heated in cooperation with the memory metal ring, and the device is more accurate in expansion. Compared with a traditional method, the method is more flexible and controllable, and the dependence on a mechanical device is reduced.

The self-adaptive film fixing device comprises a first tooth socket and a second tooth socket which are connected to the two sides of lower jaw teeth in a sleeving mode, a lower restraining film used for being attached to the lower jaw and the root of the tongue is installed between the first tooth socket and the second tooth socket, and second flexible pressure sensors are installed at the connecting positions of the first tooth socket and the lower restraining film and the connecting positions of the second tooth socket and the lower restraining film; when the arranged flexible pressure sensor detects the pressure generated by the posterior falling of the tongue, data can be transmitted to the PCB, the data is analyzed by the PCB and then transmitted to the microcontroller, and then the built-in battery piece is controlled to accurately supply power to the electroactive polymers embedded in the upper bundle film and the lower bundle film through the high-conductivity graphite wire core. The electroactive polymer quickly generates mechanical response under the action of an electric field, the rigidity of the electroactive polymer is improved from a soft state to a hard state, a rigid supporting structure is formed, reverse supporting force is applied from the tongue root part and the tongue body part in two directions, the tongue body is effectively prevented from continuing to fall backwards, and it is ensured that the airway is kept smooth in the sleep state.