2205results about "Friction generators" patented technology

The invention provides a friction generator. The friction generator comprises two electrodes; the electrode comprises a macromolecular polymer insulating layer; a micro-nano concave-convex structure is arranged on one side surface of the macromolecular polymer insulating layer, and a metal film is arranged on the other side surface; the surface of the electrode micro-nano concave-convex structure of one insulating layer is directly attached to the surface of the electrode micro-nano concave-convex structure of the other insulating layer, and the two are fixedly connected through the outer edge; and the metal film is an electrode for outputting voltage and current of the friction generator. The invention provides a novel and effective method for obtaining energy by use of the friction effect. The friction generator generates electric energy by use of the potential change of the internal electrification by friction and the inductive effect of the metal pole plates on the two sides; and the method is simple and efficient and the cost is low.

A generator includes a thin first contact charging layer and a thin second contact charging layer. The thin first contact charging layer includes a first material that has a first rating on a triboelectric series. The thin first contact charging layer has a first side with a first conductive electrode applied thereto and an opposite second side. The thin second contact charging layer includes a second material that has a second rating on a triboelectric series that is more negative than the first rating. The thin first contact charging layer has a first side with a first conductive electrode applied thereto and an opposite second side. The thin second contact charging layer is disposed adjacent to the first contact charging layer so that the second side of the second contact charging layer is in contact with the second side of the first contact charging layer.

The invention provides a friction generator, which comprises a first electrode, a second electrode and an intermediate film, wherein the first electrode comprises a first macromoleclar polymer insulation layer of which one side surface is provided with a conductive film; the second electrode comprises a second macromoleclar polymer insulation layer of which one side surface is provided with a conductive film; the intermediate film is fixed on the other side surface of the second macromoleclar polymer insulation layer; the non-fixed surface of the intermediate film is provided with a micro-nano concave-convex structure; the surface of the micro-nano concave-convex structure of the intermediate film on the second electrode and the surface without the conductive film of the first electrode are oppositely fit and are mutually fixedly connected; and the conductive film of the first macromoleclar polymer insulation layer and the conductive film of the second macromoleclar polymer insulation layer are both the voltage and current output electrodes of the friction generator. The invention provides an innovated and effective method by the friction action, and electricity energy is generated by the variation of internal friction electrification electric potential and the induction effect of metal pole plates on two sides. The method is simple and efficient and has low cost.

A triboelectric power system includes a triboelectric generator, a rechargeable energy storage unit and a power management circuit. The rechargeable energy storage unit is associated to the triboelectric generator. The power management circuit is configured to receive an input current from the triboelectric generator and to deliver an output current corresponding to the input current to the rechargeable battery so that the output current has a current direction and a voltage that will recharge the rechargeable battery.

An optical assembly that contains an optical device movably attached to a apparatus for driving a threaded shaft assembly. The apparatus contains of a threaded shaft with an axis of rotation and, engaged therewith, a threaded nut. The assembly contains a device for subjecting the threaded nut to ultrasonic vibrations and thereby causing said the shaft to simultaneously rotate and translate in the axial direction.

A generator includes a disc shaped first unit, a disc shaped second unit and an axle. The first unit includes a substrate layer, a double complementary electrode layer and an electrification material layer. The electrode layer includes a first electrode member and a second electrode member. The first electrode member includes evenly spaced apart first electrode legs extending inwardly. The second electrode member is complementary in shape to the first electrode member. The legs of the first electrode member and the second electrode member are interleaved with each other and define a continuous gap therebetween. The electrification material includes a first material that is in a first position on the triboelectric series. The second unit defines elongated openings and corresponding elongated leg portions, and includes a second material that is at a second position on a triboelectric series, different than the first position.

The invention provides a sliding friction nano generator. The friction nano generator comprises a first friction layer, a first conductive element, a second friction layer and a second conductive element, wherein the first conductive element is contacted with and arranged below the first friction layer, the second conductive element is contacted with and arranged above the second friction layer, and the upper surface of the first friction layer and the lower surface of the second friction layer are oppositely arranged; relative sliding friction which is tangent to a contact surface between the upper surface of the first friction layer and the lower surface of the second friction layer occurs under the action of an external force, the contact area changes, and electric signals are outputted to an external circuit through the first conductive element and the second conductive element. When a periodic tangential external force is applied to the sliding friction nano generator provided by the invention, AC pulse signal output can be formed between the first conductive element and the second conductive element.

A generator for converting mechanical energy or hydropower or wind energy into electrical energy is disclosed. The generator includes a first member and a second member in contact with the first member to generate triboelectric charges. The second member rolls against the first member to generate a flow of electrons between two electrodes. Another embodiment of the generator includes two electrodes, and a member in contact with the two electrodes to generate triboelectric charges. The member rolls against the electrodes to generate a flow of electrons between the two electrodes.

This invention provides a friction nanometer generator, comprising a housing and an core body which is positioned within a cavity of the housing and can move freely. The core body, from the inside to the outside, successively comprises an inner core, a first conducting layer attached on the outer surface of the inner core and a first friction layer which is positioned on the outer surface of the first conducting layer in a contact manner. The outer surface of the first friction layer faces the cavity. The housing, from the outside to the inside, successively comprises a housing, a second conducting layer attached on the inner surface of the housing and a second friction layer which is positioned on the inner surface of the second conducting layer in a contact manner. The inner surface of the second friction layer faces the cavity. Under the action of the external force, the core body moves within the cavity, which enables the outer surface of the first friction layer to be contact with or separated from the inner surface of the second friction layer, and the first conducting layer and the second conducting layer can output electric signals to the external circuit. The friction nanometer generator disclosed by the invention is simple in structure and is wide in application.

A generator includes a first member, a second member and a sliding mechanism. The first member includes a first electrode and a first dielectric layer affixed to the first electrode. The first dielectric layer includes a first material that has a first rating on a triboelectric series. The second member includes a second material that has a second rating on the triboelectric series that is different from the first rating. The second member includes a second electrode. The second member is disposed adjacent to the first dielectric layer so that the first dielectric layer is disposed between the first electrode and the second electrode. The sliding mechanism is configured to cause relative lateral movement between the first member and the second member, thereby generating an electric potential imbalance between the first electrode and the second electrode.

This invention provides a friction nanometer generator and a gyroscope applying the same. The friction nanometer generator comprises an inner core and a housing wrapping the inner core. A plurality of a first friction unit are positioned on the outer surface of the inner core; a plurality of second friction units are positioned on the inner surface of the housing; the upper surfaces of the first friction units face the upper surfaces of the second friction units or the inner surface of the housing; at least part of the first friction units are not in contact with the second friction units; under the action of the external force (impact force), the inner core can move in a reciprocating manner relative to the housing to enable the upper surface of at least one first friction unit to be in contact with or separated from with the upper surface of at least one second friction unit; and electric signals are produced between first conductive units and second conductive units. The friction nanometer generator can convert the mechanical energy produced by vibration, impact forces, wind forces and tide to the electric energy and can also be used as the self-driving gyroscope for the two-dimension space or the three-dimension space.

The invention discloses a rotary friction power generator, a voltage stabilization output circuit and a power supply device. The rotary friction power generator comprises two electrode units which are arranged in the same plane in a spaced mode and a first component which is alternately in contact with the two electrode units. Under the action of external mechanical energy, friction static electricity carried by the first component is alternately in contact with the two electrode units along with rotation of the first component, then the induction potential difference between the two electrode units is alternately changed, a drive electron flows through an external circuit, and then alternating-current signals are formed to be output. According to the rotary friction power generator, a nanostructure layer is not needed to be arranged on the friction surface, and milliwatt-level power output density per square centimeter can be achieved.

A triboelectric generator includes a first contact charging member and a second contact charging member. The first contact charging member includes a first contact layer and a conductive electrode layer. The first contact layer includes a material that has a triboelectric series rating indicating a propensity to gain electrons due to a contacting event. The conductive electrode layer is disposed along the back side of the contact layer. The second contact charging member is spaced apart from and disposed oppositely from the first contact charging member. It includes an electrically conductive material layer that has a triboelectric series rating indicating a propensity to lose electrons when contacted by the first contact layer during the contacting event. The electrically conductive material acts as an electrode. A mechanism maintains a space between the first contact charging member and the second contact charging member except when a force is applied thereto.

A piezo-electric tag in the form of a card has a first dipole antenna, a first rectification circuit, a piezo-electric transformer, a second rectification circuit, and a transponder circuit. In operation, the antenna receives incoming radiation and generates a corresponding signal which propagates to the first circuit which demodulates and filters it to generate a signal which is applied to the transformer to excite it. The transformer increases the voltage amplitude of the signal by generating a relatively higher voltage amplitude signal which is used in the tag to generate a signal for supplying power to the transponder. The transformer provides voltage magnitude enhancement to generate potentials suitable for operating active electronic circuits incorporated into the tag. The tag can be personnel wearable and even adapted for permanent inclusion into biological systems.

The invention discloses a rotary type electrostatic generating device comprising a first component and a second component. At least one friction material zone is respectively arranged at the contact surface of each component; and friction materials with different friction electrode sequences are respectively arranged in the two friction material zones. The friction material of the first component is attached to a first conducting element; the friction material of the second component is attached to a second conducting element; and the two conducting elements are connected by an external circuit. The first component rotates relatively to the second component, so that sliding friction is generated at the contact surfaces of the two components and thus periodic superposition and separation occur at at least one portion of the two friction material zones. According to the invention, the rotary type electrostatic generating device has characteristics of small size, low rotation resistance, high energy conversion efficiency, and easy packaging and integration and can be widely applied to fields like power generation, energy conservation, rotating speed measurement and the like.

A method of manufacturing a thin quartz crystal wafer from a quartz crystal block which is cut from a crystal body of synthetic quartz crystal and has a flat principal surface, comprises the steps of (a) converging a laser beam at a region in said quartz crystal block at a predetermined depth from the principal surface thereof to cause multiphoton phenomenon state, thereby breaking Si—O—Si bonds of quartz crystal in said region to form voids in said region, and (b) peeling said thin quartz crystal wafer from a body of said quartz crystal block along said voids. The above process is repeatedly performed on one quartz crystal block to peel off a plurality of thin quartz crystal wafers successively from the principal surface of the quartz crystal block. Each of the thin quartz crystal wafers is divided into individual quartz crystal blanks for making quartz crystal units.

A triboelectric generator includes a first contact charging member, a second contact charging member and an electrical load. The first contact charging member has a contact side and an opposite back side. The first contact charging member includes a material that has a first rating on a triboelectric series and also has a conductive aspect. The second contact charging member has a second rating on the triboelectric series, different from the first rating, and is configured to come into contact with the first contact layer and go out of contact with the first contact layer. The electrical load electrically is coupled to the first contact charging member and to a common voltage so that current will flow through the load after the second contact charging member comes into contact with the first contact charging member and then goes out of contact with the first contact charging member.

The invention provides an electrostatic impulse generator, which comprises a flexible base and power generation units, wherein any two adjacent layers of the base are mutually connected to form a V-shaped or U-shaped sunken structure, the power generation units are arranged in the sunken structures, the two layers on the inner surface of the V-shape or U-shape sunken structure respectively support a friction layer of the corresponding power generation unit, under the action of external force, the size of the opening of the V-shape or U-shape sunken structure of the flexible base is reduced to enable the two friction layers to be contacted with each other so as to generate surface charge transfer, when the external force disappears, the two friction layers of the power generation unit are separated from each other due to the rigidity of the flexible base, and pulse electrical signals are generated on electrode layers. Under the action of periodic external force, the two friction layers of the power generation unit are contacted with each other or separated from each other periodically by the drive of the flexible base, and the pulse electrical signals are generated between the two electrode layers of the power generation units.

Provided are a triboelectric nanogenerator harvesting liquid mechanical energy and an electricity generation method. The triboelectric nanogenerator comprises an electricity generation component on an insulation substrate (10) and a friction layer (30) covering the electricity generation component. The electricity generation component is constituted of two electrode layers (21, 22) separately arranged along a liquid fluctuating direction and electrically connected to each other. When the liquid fluctuates or flows, a friction occurs between it and the friction layer, such that the friction layer surface in contact with the liquid carries charges. As the liquid fluctuates or flows, the charges on the friction layer surfaces corresponding to the two electrode layers are successively shielded by ions in the liquid such that an induced charge flow is produced between the two electrode layers. The two electrode layers do not need to move as the liquid fluctuates so as to ensure the service life of the electricity generator. The electricity generator has a light weight, a small volume, a simple structure, and a low manufacturing cost, and is easily produced on a large scale and mounted.

Provided are an energy harvester using a mass, and a mobile device including the energy harvester. The energy harvester includes: a mass; first and second substrates spaced apart from each other, wherein one of the first and second substrates is connected to the mass; first and second electrodes provided on the first and second substrates; and an energy generator provided between the first and second electrodes, wherein the energy generator generates electric energy upon a relative movement between the first substrate and the second substrate caused by a movement of the mass.

The invention provides a frictional electricity nano-generator, a generator set and a shoe pad utilizing the frictional electricity nano-generator. The frictional electricity nano-generator comprises an upper electrode layer, a first friction layer, an elastic layer, a second friction layer and a lower electrode layer from top to bottom in sequence, wherein the elastic layer is used for isolating the first and second friction layers, and is compressed under the external stress to enable the first and second friction layers to contact with each other; when being not stressed, the elastic layer can be elastically recovered to separate the first friction layer from the second friction layer; and the first and second friction layers are made of materials with different frictional electricity properties. Potential difference can be formed between the upper and lower electrode layers by the continuous contacting and separating of the two polymer layer frictional electricity materials during external stress applying and removing, thus outputting electricity outwards.

A MEMS system comprises a first rotational actuator having a first drive mechanism configured to drive rotation of a first rotator about a first axis, a second rotational actuator having a second drive mechanism configured to drive rotation of a second rotator about a second axis, first and second flexible linkages, a first drive beam coupled to the first rotator and to the first flexible linkage, a second drive beam coupled to the second rotator and to the second flexible linkage, and one or more device mounts coupled to the first and second flexible linkages. The one or more device mounts are configured to provide distributed points of attachment of a device. The rotation of the first and second rotators causes the device mount to rotate or piston.

The invention relates to a method and apparatus that provide autonomous power supply by converting energy of sources of a non-electrical nature into the electric energy using charge generators. For such apparatuses, as charge generators can be used piezoelectric elements, triboelectric elements, as well as radioactive sources of charged particles that do not require periodic replacement of re-charging-in contradistinction to the convention sources of power supply, galvanic batteries. Charge generator (1), when activated, produces a portion of electric charges q having a high electric potential Uin, which portion is applied to the input of charge energy converter (2). The function of the converter (2) is to increase the initial value of charges q up to value of Q, with simultaneous reduction of their potential to Uout value, which less than Uin. For the purpose to store charges Q obtained as a result of the conversion, which charges Q are needed for the electronic systems power supply, electric charge storage (3) is positioned at the output of the apparatus.

The invention discloses a single-electrode touch sensor and a preparation method thereof. The single-electrode self-driven touch sensor is built due to the fact that a touch action applier and materials of a touch layer have different frictional electrical properties. When the touch action applier conducts touch-separation or sliding or other actions on the touch layer, an electric signal generation mechanism of the touch sensor will be triggered, and an electric signal is automatically output outwards, so that the touch actions are recorded and fed back, and the functions of the sensor are achieved. The single-electrode touch sensor can record the touch actions in real time, has the advantages of being low in cost, self-driven, simple in structure and the like, and has the quite wide application prospect in intelligent electronic devices and main-machine interaction interfaces.

The invention pertains to the field of generating technology, in particular to a revolving frictional generator. The generator utilizes the phenomenon of triboelectrification to generate; a stator frictional material on the internal wall of an outer shell is closely contacted with a rotor frictional material on the external wall of a rotor shaft barrel; the rotor shaft barrel is revolved so as to cause rotary friction between the stator frictional material and the rotor frictional material and generate the current; the current is conducted out of the rotor output end. The revolving frictional generator provided by the invention has the advantages of simple structure, convenient realization and easy transportation. The revolving frictional generator is mainly used for manufacturing non-metal material and has good social and economic benefits with light weight and low cost.

The invention relates to the field of micro-electromechanical systems (MEMS) integrated processing and particularly relates to a piezoelectric friction combined type micro-nano generator and a prepared method thereof. A piezoelectric type generator is formed by means of using a piezoelectric film, and a friction-type generator is formed by using a piezoelectric film metal electrode and the difference between other flexible polymer materials and an electric charge binding capacity. Compared with a traditional piezoelectric type generator and a traditional friction-type generator, the piezoelectric friction combined type micro-nano generator combines the piezoelectricity with the friction and uses reasonable external circuit connection modes , so that a capacitance can be charged effectively and voltage output which reaches hectovolt can be provided. The piezoelectric friction combined type micro-nano generator and the prepared method of the piezoelectric friction combined type micro-nano generator is low in cost, high in productivity and simple in process and is provided with high voltage output and strong charging ability. The structure of the generator comprises piezoelectric film, a piezoelectric film electrode, the flexible polymer materials with micro-nano composite structure and a polymer material electrode.

The invention discloses a nano friction generator which comprises an electrode, a polymer insulating layer and a friction electrode, wherein the electrode, the polymer insulating layer and the friction electrode are sequentially overlapped. A micro nano concave convex structure is arranged on at least one surface in two surfaces, which are oppositely arranged, of the polymer insulating layer and the friction electrode. The electrode and the friction electrode are voltage and current output electrodes of the friction generator. According to the invention, the friction of a conductive (metal) film and polymer is used; and metal is easy to lose electrons, thus the friction electrode and the polymer insulating layer form an induction electric field.