58results about How to "Increase the induced current" patented technology

A wireless charging receiving device includes a body, a metal housing, a receiving coil, and a power storage device. The metal housing is coupled to the body to form an accommodating space. The metal housing includes an aperture and at least one slit. The slit interconnects the aperture and the edge of the metal housing. The receiving coil is disposed between the metal housing and the body. The receiving coil defines a through hole by a looped configuration, and the through hole overlaps at least part of the aperture of the metal housing. The power storage device is disposed within the accommodating space and electrically connected to the receiving coil. Electromagnetic waves are able to pass through the aperture of the metal housing and are magnetically coupled to the receiving coil, such that the receiving coil transfers the energy of the electromagnetic waves to the power storage device.

The present invention relates to a spring leaf-type bistable electromagnetic piezoelectric composite energy collecting device, including a static mechanism and a movable mechanism. The static mechanism comprises a housing, and the housing is internally provided with a bearing bearer, a fixed magnet, an upper coil and a lower coil. The movable mechanism comprises a pendulum frame, a spring piece and a vibration magnet and a spring piece is a V-shaped or U-shaped sheet. In the natural state, the upper and lower ends of the spring piece are in contact with the inner top wall and the inner bottom wall of the housing respectively. The vibration magnet and the fixed magnet are magnetized in the axial direction and repel each other. Under the action of external vibration excitation, the swinging of the pendulum frame drives the rotation of a rotating shaft, and then the spring piece and a piezoelectric element are deformed and the electric charge is generated. The electric energy is outputted through an electrode terminal lead. When the vibration magnet on the pendulum frame swings up and down, the magnetic field around the magnet also moves, the coil in the magnetic field cuts the magnetic induction lines and generates induced current, and the current is output through the lead.

The invention discloses a passive damping adjustable magneto-rheological fluid shock absorber. The lower end of a damping cylinder is provided with a piston body; a spring is arranged between the piston body and the bottom surface of the damping cylinder; the middle part of the damping cylinder is provided with a T-shaped piston body; a coil is embedded in a groove at the middle part of a cylindrical surface at the small end of the T-shaped piston body; the coil is sequentially provided with inner and outer hole bodies outwards; the inner and outer hole bodies are in clearance fit; the upper end of the damping cylinder is provided with a T-shaped damping cavity cover body; the upper end of an induction cylinder is connected with an induction cavity cover; permanent magnets are fixed amongan inner hole of the induction cylinder, the damping cavity cover body and the lower end of an induction cavity cover; a piston rod passes through the induction cavity cover, an induction iron core and the damping cavity cover body to be connected with a threaded hole at the center of the T-shaped piston body; an induction coil is embedded in a groove of the induction iron core; the two coils areconnected through a lead hole in the middle of the piston rod; a sealed inner cavity is formed among the damping cavity cover body, the piston body and the damping cylinder; and the sealed inner cavity is filled with magneto-rheological fluid. The size of a damping force of the shock absorber can be automatically regulated according to the vibration condition and an external power supply and a controller are not required.

The invention relates to a grounding shield structure which applies a fractal theory. In existing on-chip spiral inductors and transformers, because an alternating electromagnetic field is produced, induction current is produced on a substrate, energy loss is produced, and an induction value and a Q value are reduced. The shield structure is arranged in the center of an inductor / transformer which is wound from a coil, and a pattern grounding shield layer of a first order, a second order, a third order and even a higher order is constructed with metal layers M1 and M2 with thin bottom layers based on H-shaped and crisscross basic units through the self similarity and iterative principle of the fractal theory. According to the novel fractal pattern grounding shield structure, the electromagnetic field which penetrates to the substrate is effectively shielded, so that the induction current which can be produced on the substrate and on the surface area of the substrate is reduced, and the effects of reducing the energy loss of the substrate and improving the induction value and a quality factor are achieved.

The invention discloses a touch panel array. Each array element in the fingerprint identification region is correspondingly provided with a first scanning line in a prior time sequence and a second scanning line in a posterior time sequence; each array element comprises a capacitive electrode, a charging switch and a conversion module, wherein each capacitive electrode is used for forming an inductive capacitance at a fingerprint contact part; one end of each charging switch is connected with the corresponding capacitive electrode, and the other end of the charging switch is connected with the first scanning line corresponding to each array element; each charging switch is electrified when a high level is applied to the corresponding first scanning line; the input end of each conversion module is connected with the second scanning line corresponding to each array element and is used for carrying out voltage sampling, and the output end of each conversion module is connected with an induction line corresponding to each array element and used for outputting an inductive current subjected to conversion and amplification; the control end of each conversion module is connected with an inductive electrode and is used for acquiring a voltage control signal. An amplifying effect on the inductive current is realized by arranging the conversion module in each array element of the touch panel array, so that the accuracy of a touch panel is greatly improved; in addition, the touch panel array disclosed by the invention is low in cost and easy to realize.

The invention relates to an experimental instrument capable of demonstrating a superconductive magnetic levitation phenomenon. The experimental instrument capable of demonstrating the superconductive magnetic levitation phenomenon is mainly used for demonstrating the superconductive magnetic levitation phenomenon and mainly comprises a superconductive ring, a magnetic guide rail, a heat-preservation container, a thermal insulation material, a spacing block, tweezers and a set of weights. The superconductive ring is made of a high-temperature superconductive closed coil. When demonstration is conducted, the superconductive ring levitates above the magnetic guide rail, conducts horizontal reciprocating motion under small external force, and can further levitate below the magnetic guide rail in a reversed mode to conduct reciprocating motion. According to the experimental instrument capable of demonstrating the superconductive magnetic levitation phenomenon, the high-temperature superconductive ring, the magnetic guide rail composed of permanent magnetic blocks and the weights are adopted so that a magnetic levitation test can be conducted and magnetic levitation force can be measured through the weights put on the superconductive ring or a superconductive block.

The invention belongs to the technical field of charging devices, in particular to a wireless charging device for an electric vehicle. The wireless charging device comprises a bottom plate, a reinforcing plate, a first motor, lead screws, a side plate, a fixing plate, a sliding plate, electric push rods, an insulating plate, an output coil, a distance sensor, a toothed plate, a gear, a second motor, limit plates, a pressure plate, a first spring, a switch, a third motor, a drawstring, baffle plates, a second spring, a connecting plate and guide wheels. The wireless charging device for an electric vehicle facilitates adjusting of the position of the output coil through rotation of the lead screws and rotation of the gear, thus solving reduction of the charging efficiency, caused by the deviation during parking of the vehicle; the vertical movement of the output coil facilitates the output coil to approach the receiving coil on the vehicle, thus being beneficial to the improvement of theinduced current and improvement of the charging efficiency of the vehicle; and the movement of the output coil is facilitated by the movement of the baffle plate, and the inner portion of the groundcan be sealed when not in use, thereby effectively preventing the entry of dust and improving the service life of the output coil.

The invention discloses a roller shutter door anti-falling device which is mainly used for preventing a roller shutter door from falling to hurt people and is simple in structure, capable of preventing the roller shutter door from falling in various states and safe and reliable in protection. The device is composed of a pair of stopping devices and a triggering device. The working principle is asfollows: when a door curtain of the roller shutter door ascends and stops, an electromagnet A and an electromagnet B of the pair of stopping devices are powered off at the same time, a spring extendselastically and drives a piston and a stop plate to move towards the inner surfaces of U-shaped bottom plates of the left door curtain sliding sleeve and the right door curtain sliding sleeve respectively and abut against the inner surfaces of the U-shaped bottom plates, and at the moment, no matter whether a chain wheel of a driving device of the door curtain is unhooked or broken or subjected toother abnormal conditions, the stopping devices can prevent the door curtains from falling; and when a door curtain of the roller shutter door descends, if the door curtain suddenly falls due to a certain reason, the triggering device triggers an electromagnetic switch to act, power supplies of the electromagnets A and B of the stopping devices are cut off, and a left stop plate and a right stopplate abut against the inner surfaces of the U-shaped bottom plates to prevent the door curtain from falling.

The invention relates to a novel fractal PGS (Program Generation System) structure. As the existing the on-chip spiral inductor and transformer generate an alternating electromagnetic field, induced current is caused on a substrate to generate energy consumption and reduce the inductance and the Q value. The PGS is located in the central part of a coil-wound inductor / transformer, a first-order, second-order, third-order, or even higher order pattern grounded shield layer is constructed by a metal layer with a thin bottom on the basis of an H-shaped basic unit and a cross-shaped basic unit through the self-similarity of fractal theory and the iterative theory. The novel fractal PGS structure screens out the electromagnetic field which permeates the substrate effectively, reduces the induced current which is capable of generating on the substrate and the substrate surface area, achieves the substrate energy consumption and improves the function of inductance and quality factor.

The invention relates to a high-voltage electric field inductive energy extraction device, which is characterized in that it comprises an insulating top plate (1) fixed on a cantilever beam of an electric pole tower, and the insulating top plate (1) is connected with an annular metal induction plate (2) through a connecting piece. The device of the invention has the advantages that the weight of the electrode plate is small and the induced current can be obtained under the size through a large number of simulation analysis and comparison and tests, and the electrode plate can obtain the corresponding induced current through the actual experiment. The device of the invention utilizes an alternating electric field near a high-voltage power transmission line to obtain an induced current on ametal electrode plate near the transmission line according to the electromagnetic induction principle, and realizes the charging and storage and utilization of a large capacitor by means of the current and a corresponding charging circuit.

The invention discloses a charging device position detecting method based on wireless charging. The method comprises: S1, a charging mechanism waits and determines whether a first sensing signal comesin a non-working state; S2, outputting a first excitation signal to activate the charging mechanism; S3, an induced current of an induction coil is obtained; S4, the obtained induced current value iscompared with a preset induced current to determine whether the induced current of the part of induction coil changes obviously; and S5, an area formed by the induction coil with the obvious inductedcurrent changing is used as a location area of a charging device, a second excitation signal is outputted, and thus a charging transmitting unit in the location area works and a charging transmittingunit outside the location area is turned off, so that the charging mechanism enters a charging state. The method has the following advantages: intermittent starting of a charging mechanism for accessdetection of a charging device is avoided; and thus the service life of the wireless charger is prolonged.

An energy supply device gathering organism motion energies and an interpolation medical electronic device comprise an energy gathering unit, a rectification unit and an energy storage unit; the energygathering unit is used for sensing the potential difference between the organism and a reference ground so as to form an induced-current when the organism moves; the rectification unit is used for rectifying the induced-current outputted by the energy gathering unit into a DC current, and providing electric energy for the energy storage unit and / or a load; the energy storage unit is used for storing the electric energy outputted by the rectification unit when the rectification unit outputs electric energy, and providing electric energy for the load when the rectification unit outputs no electric energy; the energy supply device can utilize friction electrification and an electrostatic induction principle to convert organism motion energy into electric energy, and rectifies and stores theelectric energy, thus providing a long term energy supply for the load, and reducing patient operation risks and economical burdens; in addition, the energy source is from the potential difference between the organism and the reference ground, thus forming a large induced-current, and providing a high output power.

The invention discloses a method and system for detecting an underwater ferromagnetic target based on multiple power frequency radiation sources, and belongs to the technical field of non-acoustic underwater detection. The underwater ferromagnetic target generates an electromagnetic field under the combined action of a power frequency electromagnetic field and seawater inside and outside the underwater ferromagnetic target, and if a plurality of water surface ships act on the underwater ferromagnetic target as secondary radiation sources, a secondary magnetic field generated by the underwater ferromagnetic target is obtained. Adding the electromagnetic field generated by the underwater ferromagnetic target under the combined action of the power frequency electromagnetic field and the seawater inside and outside the underwater ferromagnetic target to obtain a total electromagnetic field generated by the underwater ferromagnetic target; and acquiring power frequency electromagnetic field distribution around the underwater ferromagnetic target, and detecting the underwater ferromagnetic target according to the power frequency electromagnetic field distribution. According to the invention, the power frequency electromagnetic field signal of the underwater ferromagnetic target can be enhanced, and detection of the underwater ferromagnetic target is realized.

The invention discloses a metal sheet defect detection device and method in a high-speed motion state. The device mainly comprises a computer, a high-speed motion device, a probe, a signal processing circuit, an acquisition card and a direct-current power source. According to the device, the probe is driven by the direct-current power source, a metal sheet is fixed above the high-speed motion device and passes through the probe at constant speed; when a magnetic field is cut as a result of relative movement between the metal sheet and the probe, an induced current is generated in the metal sheet; the induced current then generates a secondary magnetic field so as to change the size of a space magnetic field; when a defect exists in the metal sheet, the induced current varies so as to change the size of the magnetic field; a magnetic field sensor in the probe measures the change of the magnetic field; output signals pass through the signal processing circuit and the acquisition card and are then output to the computer; and the defect of the metal sheet can be recognized through data analysis. The device and method can be applied to nondestructive detection and evaluation of the quality and in-service state of the metal sheets, and have wide market prospect.

The invention discloses wirelessly charged wifi shooting spectacles. The wirelessly charged wifi shooting spectacles comprise eyeglasses (1), a spectacle frame (2), spectacle legs (3), a camera (4) and a wifi emitter (5), and the camera (4) is arranged at the front end of one of the spectacle legs (3); the rear ends of the two spectacle legs (3) are downward folded to form cavities, the wifi emitter (5) connected with the camera (4) is arranged in the one of cavities, and a rectifying device (6) connected with the camera (4) is arranged in the other one of cavities; and the rectifying device (6) is connected with a wireless charging receiving coil, the wireless charging receiving coil is arranged in an annular hang rope (7), and the hang rope is arranged outside the spectacle frame (2) and the spectacle legs (3). The wirelessly charged wifi shooting spectacles have the advantages of good journey continuation capability, high wireless charging efficiency, good wearing comfort level, and overcoming of disadvantages in the prior art.

The invention discloses a multi-magnetic-pole positioning wireless flash charger, and relates to the technical field of wireless charging. The charger is composed of: a transmitting seat upper cover (1); a charger emission seat base (2); an input DC5V power line (3); a USB plug (4); a round pit (5) used for fixing a transmitting module; a transmitting module and receiving module fixing plate (5-1); a magnetic flux leakage prevention ferrite wafer (6); a magnetic flux leakage prevention ferrite wafer (6-1); a circular transmitting coil (7); a circular receiving coil (7-1); a transmitting circuit board (8); an alignment strong magnet sheet (9); a mobile phone rear cover outer plane (10); a round pit (11) used for fixing the receiving module; and a receiving circuit board (12). An even numberof strong magnets with equal radius, equal arc length and different adjacent magnetic poles are arranged around the magnetic flux leakage prevention ferrite wafer; and when a to-be-charged mobile phone is moved to the position above a charging base, the charging base can be attracted to the back face of the mobile phone, the transmitting coil and the receiving coil are accurately aligned, and thecharging efficiency is maximized.

The invention provides a tube column detection probe based on an alternative-current electromagnetic field. A probe shell is designed into a first main body and a second main body which can be separated; when detection is carried out, the first main body and the second main body are connected to form a tube column detection probe through a connecting part, and then the probe can be conveniently assembled and disassembled; meanwhile, the first main body and the second main body are respectively wound and wrapped by excitation coils, the lift distances of the excitation coils from a tested surface can be reduced, the intensity of sensitive current on the tested surface can be improved, and furthermore the sensitivity of the tube column detection probe can be improved. Therefore, by adoptingthe tube column detection probe based on the alternative-current electromagnetic field, the detection probe can be conveniently assembled and dissembled, detection procedures that a tube column is detected by using an alternative-current electromagnetic field detection technique are simplified, in addition, detection on tube columns of different tube diameter sizes at different parts can be achieved, meanwhile, the winding structural design of the excitation coils can be achieved, and the lift distances of the excitation coils can be effectively reduced.

The invention discloses a large-gap resonant linear induction motor, which utilizes the resonant coupling of the primary winding and the secondary winding to realize the maximization of the secondary induction current. The system consists of three-phase symmetrical primary windings (2) wound on the stator core (1) connected in series with primary compensation capacitors (3), fed with three-phase symmetrical high-frequency alternating current, and generating a traveling wave magnetic field at the air gap. The structure of the secondary winding (4) is the same as that of the primary winding (2). It adopts a star or delta connection and is connected in series with the secondary compensation capacitor (5), so that it is in a state of magnetic coupling resonance with the primary, and its resonant frequency is the same as that of the primary winding. (2) have the same resonant frequency, so that the primary winding (2) and the secondary winding (4) achieve magnetic coupling resonance. The invention is applied to linear motors and the like. Due to the large current generated by resonance coupling, the motor has the advantages of large thrust, large air gap, high efficiency and the like.

The invention discloses an in-vehicle automatic cycling charging system for an electric vehicle, and mainly relates to the field of charging equipment of the electric vehicle. The in-vehicle automaticcycling charging system comprises a shaft power source, a power generation device assembly, an electronic monitoring rectification system, an automatic switching battery module, a first power supplybattery and a second power supply battery, the power generation device assembly comprises several power generators, power generation rotation shafts in the several power generators can be in drive connection with the shaft power source, the electronic monitoring rectification system is connected with the power generators and is connected with the automatic switching battery module, and the automatic switching battery module is connected with the first power supply battery and the second power supply battery. The in-vehicle automatic cycling charging system for the electric vehicle has the advantages that different degrees of pressure and inconvenience caused by electric power supplement outside electric vehicles all over the world are avoided, and the power supplement is not dependent on external vehicles and communal facilities and equipment anymore. It is achieved that an automatic cycling power supplement system is achieved in traffic tools like a battery electric vehicle, and battery life prolonging can be completed through automatic cycling and automatic charging.

The invention relates to a slot-less asynchronous electric motor, which includes a stator and a rotor, the rotor includes a rotary shaft, which is covered with two polar plates, the stator includes a stator iron core and the stator coil winded on the stator iron core, each plate of the rotor includes even magnetic polar arranged with radiating shape evenly, each magnetic polar is connected together with several pieces of cool rolling high silicon orientation silicon steel plates, each plate is produced according to the orientation direction, each magnetic polar is winded with rotor coil, the winding directions of the rotor of the joined magnetic polar are reverse, the quantity of the stator iron core is the integer times of 3 which is the quantity of the magnetic polar, the stator iron cores are arranged along the circle evenly, and fixed in the slots of the two ring plate, each stator iron core is connected together with several pieces of cool rolling direction silicon steel plates, each piece of cool rolling orientation silicon steel core is produced with the orientation direction, there has a gap between each magnetic polar and the stator iron core. The efficiency of the asynchronous electric motor is upgraded about 8%-10% compared with the universal Y series asynchronous electric motor, and the utilization rate of the material is upgraded greatly.

The invention relates to a keyboard power generation structure and a power supply method thereof. The keyboard power generation structure comprises a keyboard box, a filter box is installed and communicated with one side of the keyboard box, a fan is installed and communicated with the other side of the keyboard box, a battery is installed at the top of the filter box, and a circuit board is installed in the middle of the inner side of the keyboard box; and the keys are embedded in the upper side surface of the circuit board and electrically connected with the circuit board, an induction power generation mechanism is arranged below each key cap, the induction power generation mechanisms are embedded in the lower side surface of the circuit board and electrically connected with the circuit board, and the induction power generation mechanisms are electrically connected with the battery through the circuit board. After the key cap is pressed, a transmission column is pressed downwards so that a user can conveniently press in the using process, and does not need other transmission operations, and a labor-saving state is achieved; mechanical energy in the knocking process can be converted into electric energy to the maximum extent, the upper side and the lower side of the circuit board is cooled in an air-cooling manner through the fan, and the keyboard power generation mechanism is capable of preventing dust and water and easy to clean through a waterproof cover.

The invention relates to the technical field of air compressors, in particular to an adjustable air inlet valve for an air compressor. The adjustable air inlet valve comprises a valve body, wherein an annular groove is formed in the inner wall of the top end of the valve body, a glass cylinder is fixedly connected to the interior of the annular groove, a driving mechanism used for providing power is arranged below the glass cylinder, a dust attraction mechanism which is matched with the driving mechanism and used for attracting dust in air is arranged outside the glass cylinder, and a cylinder body is further arranged inside the valve body. According to the adjustable air inlet valve for the air compressor, the dust in the air entering the valve body is attracted through static electricity, and the contraction degree of a conductive spring is driven to be increased after the air flow is increased, so that the sealing degree of a sealing plug to the valve body is further reduced, positive feedback is formed, the air inlet amount of the valve body reaches the maximum, internal parts of the valve body can be lubricated, and lubricating oil is supplemented after a sliding rod is restored so that the interior of the valve body can be lubricated after each time of work of the valve body so as to reduce mechanical friction of the internal parts of the valve body.

The invention discloses a touch panel, a manufacturing method of the touch panel and a touch display device. The touch panel comprises a touch induction layer, an insulating layer located on the touch induction layer and a glue layer arranged on the insulating layer. The glue layer is doped with conductive materials at the set ratio. According to the touch panel, the glue layer located on the insulating layer comprises the conductive materials, wherein the glue layer is doped with the conductive materials, electrical conductivity of the glue layer is enhanced, the induction current generated by the human body is enhanced, capacity for forming coupling capacitance between the human body and the touch induction layer is improved, good induction capacity is achieved, touch induction sensitivity can be improved, and the good touch effect is achieved.

The present invention relates to a spring leaf-type bistable electromagnetic piezoelectric composite energy collecting device, including a static mechanism and a movable mechanism. The static mechanism comprises a housing, and the housing is internally provided with a bearing bearer, a fixed magnet, an upper coil and a lower coil. The movable mechanism comprises a pendulum frame, a spring piece and a vibration magnet and a spring piece is a V-shaped or U-shaped sheet. In the natural state, the upper and lower ends of the spring piece are in contact with the inner top wall and the inner bottom wall of the housing respectively. The vibration magnet and the fixed magnet are magnetized in the axial direction and repel each other. Under the action of external vibration excitation, the swinging of the pendulum frame drives the rotation of a rotating shaft, and then the spring piece and a piezoelectric element are deformed and the electric charge is generated. The electric energy is outputted through an electrode terminal lead. When the vibration magnet on the pendulum frame swings up and down, the magnetic field around the magnet also moves, the coil in the magnetic field cuts the magnetic induction lines and generates induced current, and the current is output through the lead.

The embodiment of the invention discloses a magnetic flux double-quantity generator. The magnetic flux double-quantity generator comprises a first stator iron core, a first stator winding, a rotor iron core and a rotating shaft. The inner wall of the first stator iron core surrounds a first accommodating cavity. The first stator winding is arranged on the inner wall of the first stator iron core. The rotor core is arranged in the first accommodating cavity, and the rotor core comprises a first end and a second end which are oppositely arranged. The rotating shaft is arranged between the first end and the second end, and the rotor core can rotate around the rotating shaft. The inner wall of the first stator iron core is bent in the direction away from the first end to the second end. The first end and the second end of the rotor core are both curved surfaces, and the inner wall of the first stator core is uniformly curved in the direction away from the first end to the second end, so that the length of the first stator winding can be multiplied, the cross sectional area of the first stator winding is multiplied, and the multiplied magnetic flux generated when the first stator winding cuts a rotating magnetic field is increased. Therefore, the power generation efficiency is doubled, and the generating capacity of the magnetic flux doubled generator is increased.