163results about "Influence generators" patented technology

To reduce thrust required for carrying a charge carrier by weakening strong retreating electrostatic force acting on the charged charge carrier, and to increase a conveyable charge amount by weakening potential of the charge carrier being carried, in an electrostatic generator.SOLUTION: A charge control layer remote unit is provided that conducts to a main body of a potential control layer provided in the vicinity of a charge retention layer of a charge carrier and by applying a high voltage of a different polarity of charges charged on a potential control layer body to a charge attraction electrode close to the charge control layer remote unit, charges of the potential control layer main body are moved to a potential control layer remote unit. By increasing potential of the charge carrier and conducting the charge carrier and a recovery electrode, the charges can be safely recovered.SELECTED DRAWING: Figure 10

The invention discloses a wearable knee joint self-powered sensing system and a use method, relates to the technical field of motion monitoring, and solves the technical problem that a motion detection sensor integrating light weight and a self-powered mode is lacked in the prior art. The motor comprises a stator part and a rotor part which are rotationally arranged, a center shaft penetrating through the stator part is arranged on the rotor part, and the stator part and the rotor part are rotationally connected through the center shaft; and a motion state monitoring module and a self-powered module are sequentially and coaxially arranged at the connecting part of the stator part and the rotor part, so that the rotation angle and direction of the knee joint are accurately detected, and key data support is provided for subsequent motion analysis and health monitoring.

To provide a method of eliminating charges in a potential control layer when recovering charges simpler and easier than a new charge carrier that can carry high charges at a low potential in an electrostatic generator.SOLUTION: An eliminated charge holder with the same type and without a potential control layer is provided behind a charge carrier 7 in a traveling direction, and is charged by a charging source 8 with a polarity different from and with an equal amount as charges present in a potential control layer 73 of the charge carrier, and the charges are added to the potential control layer 73 to make a charge amount in the potential control layer 73 zero. Thereby, the charges carried in a state in which a potential of the charge carrier 7 is enhanced can be safely recovered in a simple method.SELECTED DRAWING: Figure 3

A friction nanometer generator disclosed by the present invention comprises a collection unit, a conversion unit and an output unit, the collection unit comprises an input shaft and a base, the conversion unit comprises a roller and a fixed cylinder, the outer wall surface of the roller and the inner wall surface of the fixed cylinder are both provided with friction materials, and the polarities of the friction materials of the roller and the fixed cylinder are opposite; the output unit comprises an energy storage electrode layer and an output electrode layer. The input shaft drives the roller to rotate, the roller and the inner wall of the fixed cylinder rub and roll, and friction materials of the roller and the fixed cylinder have opposite polarities and rub to generate electric energy; the generated electric energy is injected into the energy storage electrode layer, the energy storage electrode layer transmits energy to the output electrode layer through electrostatic induction, and the output electrode layer generates current output. Friction resistance and material abrasion are reduced in a rolling contact mode, the energy storage electrode layer and the output electrode layer of the output unit are of a non-contact structure, a large number of charges are generated due to electrostatic induction, an efficient electric energy output system is formed, and the charge density and the output performance of the friction nanometer generator are effectively improved.

The invention belongs to the field of vehicle-road cooperation self-driven sensing, and particularly relates to an intelligent road network medium for vehicle-road cooperation triboelectricity self-driven sensing. Comprising an embedded high-elasticity triboelectric self-driven sensing unit (1), a grating type middle interlayer (2), an upper steel base plate (301), a lower steel base plate (302), a steel strut and spring (303), cushioning foam (4), a high-strength flexible nano-modified caulking layer (5) and a high-strength high-toughness waterproof packaging layer (6). The embedded high-elastic triboelectricity self-driven sensing unit (1) is prepared by selecting two flexible materials with remarkable electronegativity difference according to triboelectrification and electrostatic induction effects. The method is suitable for sensing vehicle and road information such as road average speed, vehicle weight, road surface state and the like, and the sensing range is 10-120km / h of vehicle speed, 2-20t of vehicle weight and 0.35-0.8 of road surface friction coefficient. Compared with the prior art, the method has the advantages of multiple sensing information, wide sensing range, high sensing precision, high sensing network coverage rate and the like.

To provide a charge carrier having a potential control layer adjacent to a charge retention layer, which reduces the thrust required to transport the charge carrier and eliminates the backward mirror image force generated during the initial transport phase.SOLUTION: A potential control layer is provided adjacent to a charge retention layer, which forms upper and lower horizontal plates of a charge carrier formed on a printed circuit board (PCB), and charges of opposite polarity to the charge retention layer are introduced into this layer, thereby the electrostatic force acting on the charge carrier is substantially eliminated, and furthermore, by maintaining the charges in the charge retention layer during the initial transport phase, the generation of a backward mirror image force is eliminated, thereby achieving the desired result.SELECTED DRAWING: Figure 10

The invention provides a liquid metal-based small-scale wave power generation device which comprises a plurality of power generation units, each power generation unit comprises a buoyancy bin and a power generation bin, the buoyancy bins and the power generation bins are each of a closed structure, induction electrodes which are made of conductive metal materials and are of a grid structure are arranged in the power generation bins, and the inner bottom faces of the power generation bins are of an inwards-concave disc bottom type structure; the distance between the bottom face of the grid structure and the disc bottom type structure is gradually increased from the edge of the disc bottom type structure to the center of the disc bottom type structure, the edge of the disc bottom type structure is connected with the edge of the grid structure, the surface of the grid structure is coated with a layer of friction material, liquid metal is injected into the disc bottom type structure, and a thin metal foil is arranged on the inner surface of the disc bottom type structure. An induction electrode connector is arranged on the bottom face in the buoyancy bin, the induction electrode connector penetrates through the top face of the power generation bin to be connected with an induction electrode of a grid structure, and an electric wire led out of the induction electrode connector and an electrode extension wire led out of a thin metal foil at the bottom of the power generation bin are both connected with a power output wire.

The application discloses a pressure sensor based on friction nanogenerator, which can be deployed in a wearable device for monitoring pulse fluctuation, or deployed in an electronic device with a touch screen for detecting touch action. The sensor comprises two friction layers and at least one electrode layer. The two friction layers are respectively made of materials with different electron loss and gain abilities. The surface of at least one friction layer comprises a multi-stage micro-nano structure for inducing equal and opposite net charges corresponding to the applied pressure on the two friction layers under pressure. The multi-stage micro-nano structure comprises at least two kinds of micro-nano columnar structures with different heights. The electrode layer is used for generating current based on the net charges. The application can make the pressure sensor maintain high sensitivity to large static force through the designed multi-stage structure with different heights, and can expand the measurement range of the pressure sensor, so that the sensor maintains the same or similar sensitivity under various static forces.

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.

Provided are: an electret material having high charge retention and stretchability; and a skin-attached electret environmental power generator using the electret material. A perfluoroelastomer containing iodine and / or bromine or a crosslinked elastomer obtained by crosslinking the elastomer is used as the electret material. These materials are stretchable and can form an electret by being charged by soft X-rays. In addition, the electret is formed on one of two comb-shaped electrodes arranged in a manner that the electrodes are parallel to each other, and a skin-attached electret environment power generator is formed.

To provide a power generator that can easily electrically connect a plurality of first electrode layers and a plurality of second electrode layers.SOLUTION: A portion of each of a plurality of first sheet members 10 and a portion of each of a plurality of second sheet members 20 are alternately stacked, such that a first electrostatic layer 13 and a second electrostatic layer 23 face each other, the power generator 1 generates electricity by changing the contact state between the first electrostatic layer 13 and the second electrostatic layer 23, the first connecting conductor 30 penetrates other portions of each of the plurality of first sheet members 10 and is connected to the first electrode layer 12 of each of the plurality of first sheet members 10, and the second connecting conductor 40 penetrates other portions of each of the plurality of second sheet members 20 and is connected to the second electrode layer 22 of each of the plurality of second sheet members 20.SELECTED DRAWING: Figure 1

An electret (1) has a substrate (10) and an electret layer (2) formed on the surface of the substrate (10), the electret layer (2) being obtained by electrically charging an inorganic dielectric film (20) including an outer layer film (3) and an inner layer film (4) laminated in the thickness direction (X) of the substrate (10), the outer layer film (3) being a film mainly composed of a first inorganic dielectric material, and the inner layer film (4) being a film mainly composed of a second inorganic dielectric material. The first inorganic dielectric material is a composite metal compound containing two or more different metal elements, contains at least a trivalent metal element, and has a band gap energy of 3 eV or more, and the inner layer film (4) is a film having a second inorganic dielectric material different from the first inorganic dielectric material as a main component.

A vibration-driven energy harvester includes: a base; a movable assembly that includes a first movable electrode and a second movable electrode; a first fixed electrode disposed so as to face opposite the first movable electrode; a second fixed electrode disposed so as to face opposite the second movable electrode; an elastic support member having a fixed end fixed to the base, the elastic support member supporting the movable assembly; a first electret formed at least at one of the first movable electrode and the first fixed electrode; and a second electret formed at least at one of the second movable electrode and the second fixed electrode, wherein: a gap distance between a front end of the second movable electrode and a facing surface of the second fixed electrode facing the front end of the second movable electrode is different from a gap distance between a front end of the first movable electrode and a facing surface of the first electrode facing the front end of the first movable electrode.

The application provides a power generation device, a watchband and a smart watch. The power generation device comprises a containing cavity, an elastic member, a magnetic member, at least one set of power generation members and a rectifying member. The magnetic member is arranged in the containing cavity and is elastically connected to one end of the containing cavity through the elastic member and elastically connected to the other end of the containing cavity through the elastic member. The at least one set of power generation members acts on the containing cavity and the magnetic member. The rectifying member is electrically connected to the at least one set of power generation members. When the magnetic member moves along the direction of the central axis of the containing cavity under the action of its own gravity and / or the elastic force of the elastic member, an electric current is generated on the at least one set of power generation members through the interaction between the magnetic member and the at least one set of power generation members. The electric current is converted into direct current by the rectifying member and then output to supply power to an electric device. Through the application, the flexibility of supplying power to the electric device can be improved.

In a vibration power generation element that uses vibration from the outside to output alternating current from an output line, there is provided: an intermediate electrode that is not connected to the output line; a plurality of electret electrodes that are arranged opposite to the intermediate electrode and have an electret on at least a portion of the surface of the surface opposite to the intermediate electrode; a holding portion that holds the intermediate electrode and the plurality of electret electrodes so that they can vibrate freely relative to each other; and a charge injector that injects charges having opposite characteristics to those of the electrets formed on the surfaces of the plurality of electret electrodes into the intermediate electrode.

The present invention relates to a high-output DC electric energy generation device using a conductive polymer gel and, more particularly, to a technology for generating DC electric energy using a charge recombination mechanism through contact-separation and sliding methods, wherein a conductive polymer gel including a mixture of PVC and a plasticizer or a mixture of PVDF and an ionic liquid is disposed between upper and lower metal electrodes made of gold or aluminum. The present invention can provide stable and efficient DC power to various applications such as IoT sensors and small electronic devices by optimizing the thickness of the conductive polymer gel, the concentration of the plasticizer, the metal electrode material, and the like. In particular, the present invention can increase power efficiency through charge generation and accumulation processes performed by vertical and horizontal movements of the electrodes.

The invention discloses an omni-directional flexible sliding energy conversion system and a full-printing preparation method, the system comprises a flexible substrate layer, an inner circle electrode containing a leading-out wire is uniformly deposited on the flexible substrate layer, an isolation layer is printed on the leading-out wire area of the inner circle electrode, and the isolation layer is printed on the leading-out wire area of the inner circle electrode. An outer ring electrode containing a leading-out wire is printed on the flexible substrate layer, wherein the outer ring electrode and the inner circle electrode are of an annular nested structure; coating and printing WPU / BaTiO3 composite ink on the flexible substrate layer and completely covering the inner circle electrode and the outer ring electrode to form a de-electron layer; and coating ink on the other flexible substrate layer to form an electronic layer. The electron-losing layer and the electron-gaining layer move relatively to cause an electrostatic induction phenomenon, the inner circle electrode and the outer ring electrode generate a potential difference, the potential difference causes movement of electrons to generate current, and displacement motion is converted into electric signals to be output. The system does not need to consume extra electric energy, can efficiently provide power support for wearable equipment, and has durability and reliability.

The present invention relates to a dimming system and a self-powered method thereof, which realizes the self-powering of a dimming film and belongs to the field of dimming. The dimming system includes an electret generator, a rectifier, a reset switch, a dimming film structure and a voltage management module. The electret generator can convert external mechanical stimulation into electrical energy. The output end of the electret generator is connected to the input end of the rectifier, the output end of the rectifier is connected to the dimming film structure, and the reset switch, the dimming film structure and the voltage management module are connected in parallel with the dimming film structure to obtain a self-powered dimming system that does not require an external power supply. The self-powered dimming film prepared by the present invention does not require an external power supply. It can realize the function of regulating the light transmittance of the dimming film structure by applying external stimulation, and its initial optical state can be switched by rotating the polarizer, which greatly expands the scope of application. Therefore, it can be used in the fields of architecture, automobiles, electronics, etc.

To provide a vibration power generation device whose size can be kept as small as possible. [Solution] A bridge circuit (15) is configured inside or outside the substrate and is electrically connected to a fixed electrode portion. A movable electrode portion (20) is disposed facing the fixed electrode portion at a distance from the fixed electrode portion and vibrates relative to the fixed electrode portion. A power storage device (60) is electrically connected to the output of the bridge circuit (15) and outputs a voltage. The power storage device (60) is configured as a weight on the movable electrode portion (20) and vibrates integrally with the movable electrode portion (20).

A MEMS element according to the present invention is provided with a base, an insulation layer fixed to one surface of the base, a first upper layer at least portions of which are fixed to the insulation layer, and a second upper layer provided surrounding the first upper layer and disposed being separated from the first upper layer by slits, wherein the first upper layer includes, at predetermined portions, protruding portions protruding toward the second upper layer, and the protruding portions are fixed to the insulation layer.

To provide a battery generating voltage without applying external force.SOLUTION: In a battery having an electrode A, an electrode B, and a dielectric body between the electrode A and the electrode B, a difference between work functions of the electrode A and the electrode B is equal to or more than 0.1 eV, and the dielectric body is a sheet consisting of a polyvinyl chloride and a plasticizer. Preferably, both of the electrode A and the electrode B are metals with a purity of 98% or above, the plasticizer includes dibutyl adipate, and content of the plasticizer in the dielectric body is equal to or more than 35 wt%.SELECTED DRAWING: Figure 1

The invention provides an integrated device for vibration control and energy collection. The integrated device comprises a shell, a mass block, a spring assembly, a first electrode pair and a second electrode pair, wherein the mass block is arranged in the shell and can freely vibrate; the spring assembly is arranged between the mass block and the shell and generates a geometric nonlinear effect; the first electrode pair is arranged on the inner side of the shell; the rectifying load circuit is connected with the second electrode pair and the first electrode pair, and the first electrode pair is arranged on the inner side, facing the second electrode pair, of the shell. According to the technical scheme, geometric nonlinearity is introduced through the spring assembly, so that the inherent frequency range of the system covers the ultralow frequency range below 1Hz. According to the technical scheme, the structural vibration response regulation and energy self-supply system is high in adaptability and integration degree, and broadband, stable and efficient combined vibration control and energy recovery are achieved.

The invention relates to the technical field of wireless temperature measurement sensors, in particular to a wireless temperature measurement sensor capable of being installed in an electrified mode, which comprises a sensor body and an installation shell, the sensor body comprises a steel belt and two metal supports, and a metal clamp is hinged to the other end, opposite to one end, of each metal support. An inner plastic shell is installed between the two opposite side walls of the two metal supports, a component to be subjected to temperature measurement is placed on the inner plastic shell, side plates are installed on the two opposite side faces of the metal supports respectively, the outer wall of the installation rod is sleeved with an auxiliary spring piece and two spring clamping pieces, and the installation shell comprises a frame main shell and a frame auxiliary shell which can be separated. The frame main shell and the frame auxiliary shell are connected through the screw rod, the driving assembly controls the screw rod to rotate so as to adjust the distance between the frame main shell and the frame auxiliary shell, the detachable design of the frame main shell and the frame auxiliary shell is matched with the installation clamp, and the problem that a metal clamp needs to be opened with great effort before a sensor body is installed can be solved. And the problem of driving installation can also be solved.

A vibration energy harvesting unit advantageous for thickness reduction and clear as to a frequency bandwidth in which desired harvested energy is obtained, a method for designing such a vibration energy harvesting unit, and a program for designing a vibration energy harvesting unit are provided. The vibration energy harvesting unit is formed by: a vibration energy harvesting element 1 including a fixed electrode portion extending in one direction and a movable electrode portion facing the fixed electrode portion and vibrated in one plane, the vibration energy harvesting element 1 harvesting energy by relative vibration of the fixed electrode portion and the movable electrode portion; and a vibration body 2 connected to the vibration energy harvesting element 1, vibrated by vibration of a vibration source at least in a plane direction, and transferring vibration to the vibration energy harvesting element 1.

A vibration-driven energy harvesting element includes fixed electrodes that are fixed to a base part, a movable electrode that is movable with respect to the fixed electrodes, and an elastic support part that includes one end fixed to the base part and another end fixed to the movable electrode and elastically supports the movable electrode. The elastic support part of the vibration-driven energy harvesting element includes a plurality of elastic structures each of which has a linking portion, a first elastic portion, and a second elastic portion. The first elastic portion having one end fixed to the linking portion and another end fixed to the movable electrode and extending in a second direction orthogonal to a first direction in which the movable electrode vibrates. The second elastic portion having one end fixed to the linking portion and another end fixed to the base part and extending in the second direction. The plurality of elastic structures being disposed on both sides of the movable electrode in the first direction; and connecting members that connect the linking portions included in the plurality of elastic structures to each other.