125results about How to "Self-driving" patented technology

The invention relates to the field of sensing, and discloses a pressure sensor based on triboelectricity. The pressure sensor comprises a generator which deforms under the action of pressure, and generates and outputs an electric signal based on the deformation; and an external circuit which is connected with the generator, and is used for detecting the electric signal outputted by the generator, and determining the size of the pressure or deformation according to the detected electric signal. According to the invention, the pressure sensor can detect the pressure without an additional power supply, and achieves the self-drive of the pressure sensor.

The invention provides a piezoelectric nanometer generator prepared by taking a spring as a base, and a self-driven dynamometer based on the nanometer generator. The spring type nanometer generator comprises a spring base, a conductive outer surface included by a spring wire forming the spring base, a piezoelectric body layer and an outer electrode, wherein the piezoelectric body layer is tightly contacted with the outer side of the conductive outer surface, and the outer electrode is tightly contacted with the outer side of the piezoelectric body layer. The piezoelectric body layer can generate a piezoelectric effect under the condition that deformation of the spring base occurs, and outputs electric signals to an external circuit through the conductive outer surface and the outer electrode. A self-driven pressure sensor and the measurement can be realized by using the advantage that the compression distance of the spring has a linear relation with an applied external force. The self-driven dynamometer provided by the invention is small in size, and can be arranged in various mechanical components conveniently; and the self-driven dynamometer does not need an external power supply during operation, and has the advantages of safety, reliability, environmental protection and the like, thereby being of great significance for sustainable development of intelligent transportation and modern industries.

The invention relates to a flexible stretchable power generator based on electrification by friction; the flexible stretchable power generator comprises a friction layer, the first electrode filling layer, the second electrode filling layer, the first assembling layer and the second assembling layer; a groove channel is arranged inside the first assembling layer and the second assembling layer; the first electrode filling layer fills in the groove channel corresponding to the first assembling layer, thus forming the first contact friction surface; the second electrode filling layer fills the groove channel corresponding to the second assembling layer, thus forming the second contact friction surface; the friction layer is arranged between the first and second contact friction surfaces. Theflexible stretchable power generator based on electrification by friction can gather motion signals in movements so as to form current, thus charging a wearable equipment battery and monitoring mechanical motions; the flexible stretchable power generator based on electrification by friction has very good transmittance, waterproofness and biology compatibility, and can provide important meanings for the electronic skin development and wearable equipment industry.

The invention discloses a piezoelectric flexible thin film electronic piano which comprises a power source, an electronic piano control box, a voice box, a flexible thin film substrate and key sensors. The key sensors are arranged on the flexible thin film substrate along the long side at intervals, are flexible piezoelectric pole electrets thin film sensors, can convert mechanical energy generated by key pressing and can output voltage signals different in amplitude and frequency according to speed and depth of key pressing, self driving is realized, and outputting of playing voice different in tone and volume is realized after the voltage signals are processed by the electronic piano control box. The piezoelectric flexible thin film electronic piano is integrally light and convenient to carry.

The invention relates to a micro-fluid self-driven micro-fluidic chip with temperature response and a preparation method thereof. A microstructure and a micro-channel are arranged on the surface of the micro-fluidic chip; the surface of the micro-channel is modified through a temperature response molecule; when the micro-channel is stimulated by an external field temperature, the variation of surface wettability is caused by reversible variations of surface topography and chemical configuration of the micro-channel; the micro-fluid is controlled to move from the bottom up on the surface of the micro-channel, so that the micro-fluid automatically flows; and the micro-fluid self-driven micro-fluidic chip is mainly applied to the related field of electrophoretic separation, chromatographic separation, immunoassay, reaction and the like. The micro-fluidic chip is simply operated, the micro-fluid is self-driven from the bottom up, the micro-fluid driving cost is greatly reduced, the micro-fluid self-driven micro-fluidic chip is portable, economic, rapid and efficient, and a brand new micro-fluid flowing control technology is provided for micro-fluid undriven flowing.

The invention relates to a body-building type massage device. The body-building type massage device comprises a frame, wherein a bed board is arranged at the upper part of the frame; a sunk trough for embedding of a human body is formed in the upper surface of the bed board; a plurality of through-holes are formed in the sunk trough at the area of the back of the human body; two through-holes are formed in sunk trough at the area of the cervical spine of the human body; a chain wheel with a pedal is hinged above the rear part of the bed board through a bracket; a crankshaft member is arranged inside the frame; the crankshaft member comprises a plurality of connected n-shaped crankshaft sections; each crankshaft section comprises a connecting rod neck and connecting pieces which are respectively arranged at two ends of the connecting rod neck; a plug is arranged on the external side wall of the other end of one connecting piece; a socket for containing the plug is arranged on the external side wall of the other end of the other connecting piece; a plurality of convex ribs are uniformly distributed on the external side wall at the end part of the plug. The body-building type massage device is simple in structure and low in manufacturing cost; people can be massaged while taking exercise.

The invention discloses a glucose-response-driven hydrogel multistage motor and a production method thereof. The method includes: using silica gel to produce a mould; adding movable silica gel small mould blocks into mould holes during drive layer production; after the drive layer production, taking out the movable silica gel small mould blocks, dropwise adding gelatin/agar mixed solutions of different proportion into interval areas, and gelatinizing the solutions to form the glucose-response intelligent hydrogel multistage motor capable of achieving fast drive. The produced hydrogel multistage motor can achieve self-driving in a drive solution and has excellent drive performance, the drive average speed reaches up to 16.2+/-1.3mm/s, a decomposition layer can be dissolved step by step through temperature control or infrared irradiation, and the small motor releases step by step and freely propels. Compared with a traditional motor, the hydrogel multistage motor is faster in driving, more intelligent and higher in controllability.

The invention discloses a kapok fiber/manganese dioxide structure multi-layer self-drive tubular micro-nano motor and a preparing method thereof. With manganese dioxide adopted as the raw material andkapok fiber adopted as the template, by soaking the kapok fiber in a manganese dioxide solution, the manganese dioxide and the kapok fiber are made to have a redox reaction to generate manganese dioxide nanoparticles to be loaded on the kapok fiber, and therefore the multi-layer self-drive tubular micro-nano motor is prepared, and the motor is good in biological degradability, has carrying, conveying and releasing functions and has wide application prospects in the fields of efficient medicine loading, target cancer cell conveying, medicine near infrared light responsiveness controllable releasing, environmental control and the like.

The invention relates to a self-driven cooling and dedusting transformer box and belongs to the field of closed transformer substations. To solve the problems of high energy consumption, intrusion ofexternal dew and small dedusting range of the prior art, the technical scheme includes that the self-driven cooling and dedusting transformer box comprises a cooling and dedusting device; the dedusting device comprises a power mechanism, a cleaning mechanism and a ventilation mechanism; the power mechanism comprises an air bag, a threaded rod and a limit tube sleeves the air bag, the limit tube isfixedly connected to the top wall of the box, protrusions on the end face of the threaded rod are fixed to the end face of the air bag, and a support plate for sliding of the threaded rod is fixedlyarranged below the threaded rod; the ventilation mechanism comprises helical fans and revolving-rod type blinds, the helical fans sleeve the threaded rod, are coated with activated carbon, and revolving rods are fixedly connected with revolving ropes which are further fixedly connected with the threaded rod; the cleaning mechanism comprises drive rods and cleaning discs, the tops of the drive rodsare conical and provided with teeth, and the cleaning discs are fixedly connected to the bottom of the drive rods respectively; besides, the threaded rod is sleeved with teethed conical tubes which are fixedly connected with the helical fans, and the teeth at the tops of the drive rods are meshed with the teeth of the conical tubes.

The invention provides a flexible self-driven sensor for sensing temperature and touch. The flexible self-driven sensor comprises a composite fiber layer, Au electrodes and a PDMS layer, wherein the composite fiber layer is composed of PZT, MXene and PVDF, and PDMS is filled between composite fibers; the Au electrodes are arranged at the two ends of the composite fiber layer; the invention also provides a preparation method of the flexible self-driven sensor for sensing temperature and touch. According to the flexible self-driven multifunctional sensor for sensing temperature and touch and the preparation method of the flexible self-driven multifunctional sensor, operation is easy, practicability is high, the sensor has high sensing performance, flexibility and mechanical strength, the stable sensing capacity can still be kept after accumulated polarization inversion, and the flexible self-driven multifunctional sensor is suitable for being used for sensing temperature and touch. And meanwhile, leakage of toxic substances such as lead can be effectively prevented.

The invention belongs to the technical field of electronic elements and relates to a self-driven optical excitation gas sensor. The self-driven optical excitation gas sensor comprises an environment vibrational energy generation unit, a packaging component, a light source and a gas sensitivity sensor. The environment vibrational energy generation unit comprises an environment vibration generator, a motor, a Faraday cage and a driver, the environment vibration generator is arranged in the Faraday cage, the motor is controlled by the driver to drive the environment vibration motor to perform vibration movement, the vibrational energy of the shielding environment is acquired, a produced electric signal is used as an energy source and is used for providing electric energy for an LED lamp; the packaging component packages the gas sensitivity sensor and the light source in one same closed space, the light source is arranged on the vertical plane of the gas sensitivity sensor, and the gas sensitivity sensor is a semiconductor gas sensitive material sensor. The electric energy produced by a self-powdered friction nano generation system is used to provide the electric energy for the light source directly, the loss of the energy is reduced, and the semiconductor gas sensor is self-driven without the help of the stored energy of a battery.

The invention relates to a pH-responded micro-fluid self-driven micro-fluidic chip and a preparation method thereof. A micro-structure and a micro-channel are formed in the surface of the micro-fluidic chip; the surface of the micro-channel is modified through pH-responded molecules; under different pH stimulation, the change of the surface wettability of the surface is caused by the surface appearance of the micro-channel and the reversible change of the chemical configuration; the micro-fluid is controlled to move from bottom to top on the surface of the micro-channel so as to realize self-flowing of the micro-fluid; and the micro-fluidic chip is mainly applied to relevant fields of electrophoretic separation, chromatographic separation, immunoassay, reaction and the like. The micro-fluidic chip is simple to operate, realizes self-driving of the micro-fluid from bottom to top, greatly reduces the cost in driving the micro-fluid, has the characteristics of being portable, economic, rapid and efficient, and provides a completely new micro-fluid flowing control technique for driving-less flowing of the micro-fluid.

The invention relates to a wireless power transmission device with a constant current output feature. A self-excitation inverter circuit is adopted for designing an inverter power supply. According tothe design scheme of the self-excitation inverter circuit, self-driving of a switching tube can be achieved, and extra PWM generators and driving circuits are omitted. The wireless power transmissiondevice is simple in structure, and can also automatically achieve the resonant frequency trace function; moreover, the switching tube works in the zero-voltage switching-on and switching-off state, the loss is small, and the complexity of the inverter circuit is lowered greatly. An electromagnetic resonance system with the constant current output feature is adopted; single-capacitance parallel compensation topology is adopted for the transmitting end of the electromagnetic resonance system, dual-capacitance serial and parallel compensation topology is adopted for the receiving end of the electromagnetic resonance system, constant current output of the wireless power transmission device can be basically achieved under different load conditions simply through three compensation capacitanceelements, and the addition of a rear-level DC/DC converter is omitted.

The invention discloses a preparation method and application of an efficient self-driven catalyst based on Fenton-like reaction and PMS activation. Plant pollen is treated to obtain carbonized pollen, the carbonized pollen is fully soaked in potassium permanganate, then the carbonized pollen and magnetic Fe3O4 nanoparticles are fully oscillated, and the magnetic MnO2@pollen micromotor is obtained, wherein the micromotor is modified with MnO2 nanosheets capable of decomposing hydrogen peroxide, and in a solution containing hydrogen peroxide, the micromotor can be driven by bubbles generated by the micromotor to achieve autonomous movement. The Fenton-like reaction generated by the magnetic Fe3O4 nanoparticles can generate active free radicals required by pollutant degradation. In addition, the MnO2 and the Fe3O4 modified on the micromotor can activate the PMS, so that the pollutant degradation is further enhanced. The contact mass transfer process of the catalyst and pollutants is greatly enhanced, and the pollutant degradation efficiency is remarkably improved, and moreover, the raw materials and the preparation process meet the green and environment-friendly requirements.

The invention relates to a wheel body with a power source arranged internally and a method for internally arranging the power source of the wheel body. The wheel body structurally comprises a rotary wheel box, the power source and a power conversion unit. The power source and the power conversion unit are arranged in the rotary wheel box, and the power conversion unit is connected between the rotary wheel box and the power source. In the work process, power is generated by the power source, and the power conversion unit transmits the power generated by the power source to the rotary wheel box so that the rotary wheel box can rotate around the axis of the power conversion unit.

The invention belongs to the technical field of power transmission and distribution network fault current limiting, and relates to a novel self-driven modular current limiting device, which comprisesan electric reactor L, a circuit breaker CB and a high-voltage rheostat R, wherein the high-voltage rheostat R is connected with the electric reactor L in parallel and then connected with the circuitbreaker CB in series, a ceramic resistor is in a door shape, a sliding rail is arranged on the inner side of the ceramic resistor, the lower end of the ceramic resistor is connected with L-shaped electrodes, the electrodes on the two sides of the ceramic resistor are parallel and perpendicular to a liquid metal sliding block, the liquid metal sliding block is arranged between the electrodes, an insulating piece is arranged at the lower end of the liquid metal sliding block, And the electrodes on the two sides are connected with the two ends of the electric reactor L respectively, so that the high-voltage variable resistor R and the electric reactor L are connected in parallel. According to the invention, the self-driven variable impedance module is a resistive load, so that overvoltage andinrush current cannot be generated in the current limiting and conversion process; and the self-driven variable impedance module and the current-limiting reactor are convenient for modular design, and can be flexibly connected in series and in parallel according to application occasions.