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35 results about "Electromagnetic devices" patented technology

Some everyday devices that have electromagnets inside them include: Microphones, speakers, headphones, telephones and loudspeakers ... Household Electromagnetic Devices The solenoid valve inside washing machines that turns water off or on is a type of electromagnet.

Bucket rod composite damping device and excavator

The invention relates to the technical field of excavator bucket rods, and provides a bucket rod composite damping device and an excavator. The device comprises a shell composed of a base, an outer shell and a stress shell; the magneto-rheological buffer device is installed in the shell and composed of a lattice structure made of magneto-rheological elastomer materials and magneto-rheological fluid filled in gaps corresponding to the lattice structure, and a plurality of sound absorption holes are formed in each cell element wall in the lattice structure; the electromagnetic device is located in a containing cavity formed in the lattice structure and is composed of a magnetic core and an electromagnetic coil; the anti-vibration pad and the stress plate are embedded in the top of the shell and are in contact with the stress plate; the damping springs are arranged on the periphery of the shell and fixedly connected between the stress plate and the base; the vibration monitoring module is used for collecting vibration data of the bucket rod in real time and transmitting the vibration data to the intelligent control module, and the intelligent control module is used for adjusting the output magnetic field intensity of the electromagnetic coil according to the vibration data so as to adjust the viscosity of the magnetorheological fluid in real time.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Electromagnetic device

An electromagnet device includes a coil, a pulley, an iron core, a yoke, a movable iron piece, an auxiliary yoke, and a permanent magnet. The coil is wound around the pulley. The iron core is located inside the pulley. The yoke includes a base portion and an extension portion. The base portion extends in a direction intersecting an axial direction of the iron core and is fixed to one end of the iron core. The extension portion is connected to the base portion and arranged laterally relative to the coil. The movable iron piece is rotatably supported by the extension portion of the yoke. The auxiliary yoke is connected to an outer side of the base portion of the yoke. The permanent magnet is positioned on an extension line of the axis of the iron core and is located between the base portion of the yoke and the auxiliary yoke.
Owner:ARATAS CORP

Ferrite core for electromagnetic device (variants)

Disclosed are the embodiments of a ferrite core for an electromagnetic device such as a transformer, an inductor, a throttle, etc. According to one embodiment, the proposed ferrite core consists of two parts, each part having at least two connecting surfaces for connection with the mating part of the core, at least one centering protrusion is provided on one connecting surface, and a recess having a shape matching the shape of the protrusion is provided on the other, corresponding, connecting surface. The core may comprise side protrusions on the connecting surfaces, the protrusions extending in outward directions relative to the central plane of the core. According to another embodiment, the connecting surfaces of the core parts are beveled, and at least two of the connecting surfaces are also convergent in opposite directions. According to yet another embodiment, one or more centering protrusions and recesses are formed on at least one pair of connecting surfaces, and the connecting surfaces of the other pair of connecting surfaces are beveled. The disclosed improvements in the design of ferrite cores allow to increase accuracy of core part assembly by centering the parts during the core assembly process, and to improve magnetic properties of the cores.
Owner:NEW ENERGY LABORATORY LTD

Low voltage shunt release

The application discloses a low-voltage split excitation tripping device, which solves the problem of failing to realize tripping at low voltage. The electromagnetic device comprises an electromagnet mechanism and a swing support, the electromagnet mechanism is electrically connected with an input end; the swing support comprises an attraction end, a pressing end and a fulcrum, the fulcrum of the swing support is closer to the pressing end, the swing support is rotatably connected to a shell body around the fulcrum of the middle frame body, the attraction end is in attraction cooperation with the electromagnet mechanism, and the pressing end is in pressing cooperation with a tripping support. The electromagnet mechanism attracts the swing support through electromagnetic force, the attraction end of the swing support is close to or contacts the electromagnet mechanism, the pressing end presses on the tripping support to make the tripping support displace, and the tripping device is tripped; since the fulcrum of the swing support is closer to the pressing end, the electromagnetic attraction force required by the electromagnet mechanism can be smaller to cause the attraction reaction, low-voltage tripping can be realized below 70% of a rated control power voltage, and the safety protection performance of the product is greatly improved.
Owner:YUEQING YIJIN ELECTRONICS CO LTD

Pig cough sound remote monitoring system based on Internet of Things

The invention relates to the technical field of intelligent breeding, in particular to a pig cough sound remote monitoring system based on the Internet of Things, a sound collection device and an image collection module are deployed in a sensing layer, an accurate recognition mechanism can control the sound collection device to move to the vicinity of a suspected cough pig for directional collection, and a pipeline is laid above a monitoring recognition area; the sliding suite and the sound collection device are installed, accurate movement of the sound collection device is achieved through a driving motor, a drawing wire and an electromagnetic device, collected sound data are transmitted to a monitoring center in real time, the system is combined with image collection equipment, an image analysis algorithm is used for assisting in recognition of the cough pigs, and the monitoring accuracy is improved. According to the system, environment data and sound data are fused and analyzed, cough reasons are judged, a scientific basis is provided for breeding management, and the system has flexible monitoring and recognition area division and remote intelligent management functions, so that the labor cost and the infection risk are reduced, and the monitoring efficiency and accuracy are improved.
Owner:INST OF ANIMAL HUSBANDRY & VETERINARY MEDICINE HENAN ACAD OF AGRI SCI

Flow guide pressure relief type navigation body water entry load reduction test method and system based on flow field visualization

The invention provides a flow field visualization-based flow guide pressure relief type navigation body underwater load reduction test system. The system comprises a test water tank, an angle-adjustable linear guide rail, a transparent test model, an IMU (inertial measurement unit), a pressure sensor, a hydrophone, a PIV (particle image velocimetry) system, an electromagnetic release device and a photoelectric switch. One end of the linear guide rail is provided with a servo motor and a motion slide block, when the motion slide block passes through a photoelectric switch at the other end, the electromagnetic device loses excitation, and the navigation body model on the slide block enters the test water tank under the initial speed and motion inertia endowed by the servo motor. According to the invention, a diversion pressure relief type test model printed by transparent resin is designed and utilized, an inflow field structure and internal flow details of impacted liquid in a diversion hole can be clearly observed, the water impact acceleration and impact force are researched through an IMU inertial measurement unit, the diversion pressure relief type structure effectively reduces water impact, and the impact resistance of the impacted liquid is improved. The hydrophone captures an underwater sound field signal, and the flow guide pressure relief structure has an obviously small impact sound signal.
Owner:SHANGHAI JIAOTONG UNIV

Intelligent door with broken bridge system

The application discloses a broken bridge system intelligent door, the door frame and the door leaf of which are of a broken bridge heat insulation structure, and in addition, the door leaf and the door frame are provided with an electromagnetic device and an intelligent door lock, the intelligent door lock and the electromagnetic device are linked and controlled through two interconnected controllers, and in addition, the door frame is provided with a trigger structure which is triggered by pressure to open the electromagnetic device. The application improves the tightness after the door is closed through the broken bridge heat insulation structure and the magnetic attraction device, and the intelligent door lock linked and controlled with the magnetic attraction device is arranged to realize mutual cooperation in the whole door closing process, so that the heat insulation, sound insulation and tightness of the door are improved, and the above performances are mutually strengthened. Specifically, the magnetic attraction device realizes self-attraction while firmly closing the door leaf, the locking tongue does not rub against the lock hole while being closed, the locking tongue is protected, the intelligent door lock can receive the pressure value feedback of the electromagnetic device to determine whether the locking tongue needs to be pushed out.
Owner:熊忠仁

Filtering auxiliary device for chemical product production

The utility model relates to the technical field of chemical product processing, and discloses an auxiliary filtering device for chemical product production, which is characterized in that a first motor is started to drive a driving shaft to rotate, the driving shaft drives a stirring rod on an outer ring to rotate, an electromagnet is arranged in the stirring rod, and the stirring rod stirs unfiltered chemical liquid in a storage box; a pressure gauge is arranged, when the pressure change in the material storage box reaches a preset value of the pressure gauge, the pressure gauge gives out a warning tone, a second motor is started, the second motor rotates to drive a movable rotating shaft to rotate, and the movable rotating shaft rotates to drive the material storage box to turn over by 180 degrees, so that the stirring speed is increased, and the stirring speed is increased; a water source enters the storage box from the discharge port, the filter screen and the stirring rod are backwashed by the water source, and the washed water source flows out from the feed port, so that the filter screen and the stirring rod are prevented from being accumulated by impurities, and the product quality is prevented from being influenced.
Owner:SHANGHAI SHINE HIGH INT TRADE CO LTD

Electromagnetic device

PCT designated stageWO2025253606A1ElectromagnetsBobbinCircular coil
This electromagnetic device comprises: an annular coil bobbin; and a core provided with an annular accommodation part in which the coil bobbin is accommodated. The inner circumferential surface of a trunk section of the coil bobbin is provided with a first engagement part. The outer circumferential surface of a central protrusion that demarcates the accommodation part is provided with a first locking part that locks the first engagement part.
Owner:FANUC LTD

Control method of AI self-closing valve and AI self-closing valve

The invention relates to an AI self-closing valve control method and an AI self-closing valve, and relates to the technical field of self-closing valves, and the AI self-closing valve control method comprises the steps that surrounding images of a gas stove are collected; when the surrounding image contains the preset character features, collecting a gas stove image; the actual gas flow is recognized through the gas stove image; responding to the actual gas flow to obtain electromagnetic operation parameters; a valve clack at an air outlet of the self-closing valve is used as a detection valve clack; the electromagnetic device is controlled to operate according to the electromagnetic operation parameters, and the detection position and sound detection information of the detection valve clack are collected; obtaining a foreign matter type and a foreign matter position based on the sound detection information; and the electromagnetic operation parameters are updated by combining the foreign matter type, the foreign matter position and the detection position, and a preset electromagnetic device is controlled to drive the detection valve clack to slide according to the electromagnetic operation parameters. The gas stove has the effect of improving the safety of gas use.
Owner:ZHEJIANG SHIYA GAS VALVE CO LTD

Electromagnetic device and method for manufacturing such an electromagnetic device

The electromagnetic device comprises a magnet core with a longitudinal axis having a first region and a second region, a coil former arranged around the second region of the magnet core, the coil former having at least one receiving region for receiving at least one coil winding of a coil, and a housing made of magnetic material, the housing circumferentially surrounding the magnet core and the coil former, the housing having at least one contact region surrounding and contacting the magnet core. The first region of the magnet core has at least one convex portion on a surface of the magnet core facing the contact region of the housing, the convex portion being formed such that the magnet core does not contact the housing in a section along the longitudinal axis between the convex portion and the second region of the housing.
Owner:KNORR BREMSE SYSTEME FUER NUTZFAHIZEUGE GMBH

GRAVITATIONAL POTENTIAL ENERGY CAPACITOR

A gravitational potential energy capacitor system comprising a vertical conduit (2), movable gravitational potential energy storage elements (E1), and an electromagnetic device carried at least partially on the inner face of the vertical conduit, said electromagnetic device being intended to be powered by an electric current source, a control unit managing the electromagnetic device according to the electric current to be stored, the movable elements (E1) being configured to be able to be raised in the vertical conduit (2) and lowered by the action of an electromagnetic device. [Fig. 1]
Owner:DARBELLAY JEROME

Electromagnetic device and manufacturing method thereof

The invention provides an electromagnetic device and a manufacturing method thereof. An external terminal of the electromagnetic device comprises a main body electrode and an additional electrode which are connected, when the additional electrode is located at a first position relative to the main body electrode, an electric connecting part of the additional electrode is located outside the two magnetic walls, and at the moment, a lead of the winding is electrically connected with the electric connecting part; and then the additional electrode is bent from a first position to a second position relative to the main body electrode, so that the electric connection part and the lead electrically connected with the electric connection part are positioned between the two magnetic walls and are arranged opposite to the winding, and even if the lead between the winding and the electric connection part is in a tightened state at the first position, the additional electrode cannot be damaged. Therefore, when the additional electrode is bent towards the winding to the second position, the distance between the winding and the electric connecting part is reduced, and the lead at the position is not in a tight state, so that the risk that the lead at the position is snapped and the product fails due to the snapped lead can be reduced.
Owner:SHENZHEN SUNLORD AUTOMOTIVE ELECTRONICS CO LTD

Electromagnetic device

An electromagnet device includes a coil, a pulley, a first coil terminal, a second coil terminal, and a third coil terminal. The pulley includes a body portion around which the coil is wound, and a flange portion extending from the body portion. The first coil terminal includes a first binding portion extending from the flange portion in an axial direction of the body portion. The second coil terminal includes a second binding portion extending from the flange portion in the axial direction. The third coil terminal is located between the first coil terminal and the second coil terminal. The third coil terminal includes a third binding portion. The third binding portion includes a base end portion and a distal portion extending from the base end portion in a direction approaching the second binding portion.The base end portion is located eccentrically relative to an axis of the body portion in a direction leading from the second coil terminal to the first coil terminal.
Owner:ARATAS CORP

Heat-dissipating electromagnetic device arrangement and electrical device

Electromagnetic device arrangement (10, 10') comprising: an electromagnetic device (14, 14') comprising a core (16, 16'), a plurality of windings (18, 20) and a housing (28, 28') arranged around at least a section of the core (16, 16') and the windings (18, 20); wherein the core (16, 16') comprises first and second sections (22, 22', 24, 24') which are joined to each other by means of an adhesive material (26, 26'), and an enclosure (30, 30') which at least partially encompasses the electromagnetic device (14, 14'), wherein the electromagnetic device (14, 14') is mounted on a first section (32) of the enclosure (30, 30') such that heat is transferred from the electromagnetic device (14, 14') to the first section (32) of the enclosure (30, 30'), wherein a projection (40, 40') extends from a second section (34) of the enclosure (30, 30'), wherein the projection (40,40') is brought into indirect physical thermal contact with the electromagnetic device (14, 14') such that heat is transferred from the electromagnetic device (14, 14') to the extension (40, 40'), wherein the electromagnetic device (14, 14') is arranged relative to the enclosure (30, 30') such that heat is transferred from the first section (22, 22') of the core (16, 16') substantially to the first section (32) of the enclosure (30, 30') and heat is transferred from the second section (24, 24') of the core (16, 16') substantially to the extension (40, 40'), characterized in that a thermally conductive material (42, 42') is arranged between the extension (40, 40') and the housing (28, 28') of the electromagnetic device (14, 14').
Owner:LEAR CORP

A kettle that can prevent the lid from falling off

The present invention discloses a kettle that can prevent the lid from falling off, which belongs to the field of household electrical appliances technology and is designed to solve the problems of inconvenience in using existing kettles. The kettle that can prevent the lid from falling off of the present invention comprises a kettle body and a kettle lid that are separated from each other. An electromagnetic device and a power supply device are arranged on one of the kettle body and the kettle lid, and the other is made of a magnetic material; the power supply device is used to supply power to the electromagnetic device, and the electromagnetic device can absorb an object made of the magnetic material after being energized. The kettle that can prevent the lid from falling off of the present invention is provided with an electromagnetic device and a power supply device. When the high-temperature liquid needs to be poured out after heating is completed, the electromagnetic device starts and absorbs the lid, ensuring that the lid will not be accidentally opened during the tilting of the kettle body, and the use is safer; when the liquid to be heated needs to be poured into the kettle body, the electromagnetic device is turned off, and the user can easily remove the lid and pour the liquid to be heated into the kettle body through the position of the kettle mouth, which is more convenient to use.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Electricity utilization monitoring linkage alarm device

The utility model relates to the technical field of power utilization monitoring, in particular to a power utilization monitoring linkage alarm device which comprises a box body, a box door is rotatably connected to the left side of the box body, a control body is fixedly connected to the right side of the upper portion in the box body, a first wire is fixedly connected to the bottom of the control body, and a deconcentrator is fixedly connected to the bottom end of the first wire. The bottom end of the deconcentrator is fixedly connected with second wires which are uniformly distributed, the bottom ends of the second wires are fixedly connected with an electromagnetic device, the outer side of the electromagnetic device is fixedly connected with a fixed shell, and the left side and the right side of the fixed shell are fixedly connected with third wires. Through the arrangement of the control main body, the first wire, the deconcentrator, the fixed shell, the third wire, the relay, the electromagnetic device, a limiting rod, a contact block, a contact plate, an insulating shell, an iron block and a spring, circuit opening and circuit breaking of the relay can be conveniently achieved, power-on or power-off of a circuit is facilitated, the switch is more durable, and it is guaranteed that the switch function is more stable.
Owner:CHANGSHA RUIFUAN ELECTRONICS CO LTD

Pipeline electromagnetic equipment protection box

The utility model discloses a pipeline electromagnetic equipment protection box which comprises a shell body, an access cover is arranged at the upper end of the shell body, an upper fixing plate and a lower fixing plate are arranged at the lower ends of the two sides of the access cover and located between the access cover and the shell body respectively, and the upper fixing plate and the lower fixing plate are symmetrically arranged up and down. The access cover, the fixed plate upper part and the fixed plate lower part are vertically connected with the shell main body in an inserting manner; limiting insertion rods are vertically and fixedly connected to the lower ends of the side faces of the access cover correspondingly and are in insertion connection with the upper portion and the lower portion of the fixing plate and the shell body correspondingly. According to the pipeline electromagnetic equipment protection box, through the matching design of multiple structures, the device can protect an electromagnetic valve, the service life of the electromagnetic valve is ensured, and through the connecting structure design of the access cover, the upper fixing plate and the lower fixing plate, the electromagnetic valve can be protected; the maintenance cover, the upper fixing plate and the lower fixing plate are convenient and fast to mount or dismount, so that the electromagnetic valve is convenient to maintain or replace.
Owner:GANSU POWER INVESTMENT JINCHANG POWER GENERATION CO LTD

Underground Pipeline Mapping and Inspection Using Frequency Domain Electromagnetic Device

Underground pipeline mapping and inspection utilizes phase shifts and voltages of electromagnetic signals transmitted to and received from the underground pipeline to determine any displacement of the underground pipeline.
Owner:CHAMPIONX LLC

Electromagnetic device and method of making same

ActiveGB2616575BResonant antennasMechanical engineeringElectromagnetic devices
An electromagnetic, EM, device, includes: a three-dimensional, 3D, body having a dielectric material, the 3D body having a first dielectric portion, 1DP, and a second dielectric portion, 2DP, wherein
Owner:ROGERS CORP

A multifunctional electromagnetic shielding room

This utility model discloses a multifunctional electromagnetic shielding room, relating to the technical field of electromagnetic shielding rooms. It includes an outer frame with multiple layers of outer shell panels fixedly connected to its outer surface. An entrance door is located on the front outer shell panel of the outer frame. A delivery pipe is mounted on the top of the outer frame, and a gas extinguishing system control box is connected to the end of the delivery pipe. Multiple vertical pipes penetrate the bottom of the delivery pipe, and sprinkler nozzles are installed at the bottom ends of the vertical pipes. A cavity is formed inside the outer frame, and multiple heat-sensing fire detectors are installed on the top of the inner side of the cavity. Multiple first partitions are provided on one side of the inner wall of the cavity. This utility model, through its series of structural features, can effectively suppress initial fires, reduce the probability of equipment damage and experimental data loss within the shielding room, and remove the restriction on independent experiments of electromagnetic equipment within the shielding room, thereby enhancing the application value of the electromagnetic shielding room.
Owner:NANTONG HUAMIN WEIL TECHNOLOGY CO LTD

Systems And Devices For Agnostic Control Of Electromagnetic Devices

Systems and methods for controlling electromagnetic devices are disclosed. The system can include one or more processors configured to communicate with one or more radio managers to provide commands and receive information from one or more devices associated with each respective radio manager. The one or more processors can condition the responses and requests from and to the radio managers to be compatible with an application operating on a user device.
Owner:THE CHARLES STARK DRAPER LABORATORY INC

Miniature self-locking electromagnet

The utility model discloses a miniature self-locking electromagnet, which belongs to the technical field of electromagnetic equipment and comprises a shell, a telescopic permanent magnet is fixedly mounted on the inner bottom wall of the shell, a reset mechanism is arranged in the shell, a self-locking mechanism is arranged in the shell, and the reset mechanism and the self-locking mechanism are fixedly mounted on the inner bottom wall of the shell. And a magnetic attraction mechanism is arranged in the reset mechanism, an adjusting mechanism is arranged in the reset mechanism, and an iron core rod with one end penetrating through and extending out of the shell is fixedly installed at the bottom end of the reset mechanism. According to the utility model, the reset mechanism and the self-locking mechanism are arranged, so that the extension and retraction states of the telescopic column can be self-locked, and the electromagnet is allowed to be maintained at the last operation position even in a power-off state and cannot automatically reset, so that the problem of misoperation of an external mechanism caused by accidental power-off is avoided; and the operation stability and reliability of the electromagnet are obviously enhanced.
Owner:ZHANGJIAKOU NORTHERN CHUANYUE DRILL MFG CO LTD

Washing machine inner barrel, washing machine and control method of washing machine

The invention discloses a washing machine inner barrel, a washing machine and a control method of the washing machine, an inner barrel main body is composed of an inner barrel base plate and a plurality of shutter material pieces, the shutter material pieces are rotatably fixed on the inner barrel base plate according to set intervals, when an electromagnetic device is powered on, magnets at the top ends of the shutter material pieces are in a zero deflection state based on electromagnetic attraction force, and the shutter material pieces are driven to rotate. In a zero deflection state, all the shutter material sheets are spliced to form a closed inner barrel side wall structure, and after water enters the closed inner barrel side wall structure, washing, rinsing, dewatering and other operations can be normally executed; when the electromagnetic device is powered off, the magnet at the top of the shutter material piece loses adsorption force and is in a specified deflection state, the closed inner barrel side wall structure is converted into the open inner barrel side wall structure, the drainage speed is increased, the washing time is shortened, and the washing progress is accelerated; the open inner barrel side wall structure can enlarge the ventilation area between the inner barrel and the outer barrel when washing is not carried out, moisture left between the inner barrel and the outer barrel can be evaporated rapidly, and peculiar smells and molds are prevented from being generated between the inner barrel and the outer barrel.
Owner:QINGDAO HAIER WASHING MASCH CO LTD +1

Electromagnetic device

An electromagnetic device used in an oil, the electromagnetic device comprising: an outer casing (2); a movable shaft (4) supported by the outer casing (2); a coil core (53A, 53B, 58A, 58B) arranged within the outer casing (2) such that the movable shaft (4) is arranged on a common axis with the movable shaft; and a coil (70, 70A) embedded in an outer mold (54), the coil (70, 70A) being constructed by winding a conductor wire (50, 50A, 50B), in which a copper wire (51) is coated with an electrical insulating layer (52), onto the coil core (53A, 53B, 58A, 58B), wherein the electrical insulating layer (52) is removed from an end portion of the conducting wire (50, 50A, 50B), and the end portion of the conducting wire (50, 50A, 50B) is wound onto a fixing portion (8a) of a coil terminal (8, 8A, 8B, 8C) attached to the coil core (53A, 53B, 58A, 58B) to form a winding portion (90, 91), a solder retaining member (62, 63) is mounted such that it covers the winding portion (90, 91) of the lead wire (50, 50A, 50B) on the fixing portion (8a) and leaves portions of the coil terminals (8, 8A, 8B, 8C) uncovered, and the winding portion (90, 91) of the lead wire (50, 50A, 50B) is soldered to the fixing portion (8a) together with the solder retaining member (62, 63), wherein the solder (56) is filled into the solder retaining part (62, 63).
Owner:MITSUBISHI ELECTRIC CORP

Paper bag glue spraying and bottom pasting machine

The utility model relates to the technical field of paper bag manufacturing, and discloses a paper bag glue spraying and bottom pasting machine which comprises a placing plate, round holes are formed in the four corners of the placing plate, vacuum suction cups are arranged in the round holes, and vacuum pumps are fixedly connected to the middles of the front side and the rear side of the bottom end of the placing plate. And communicating pipes are fixedly connected to the output ends of the left side and the right side of the vacuum pump correspondingly, and an electromagnetic device and an electromagnet are fixedly connected to the middle of the bottom end of the containing plate. A paper bag is placed on the upper portion of the placing plate, the four corners of the bottom end of the paper bag are placed on the upper portions of the vacuum suction cups, air at the four corners of the bottom end of the paper bag is exhausted through the communicating pipes and the vacuum suction cups by starting the vacuum pump, and the four corners of the bottom end of the paper bag are attracted. The middle and four corners of the paper bag are fixed, the fixing stability of the paper bag in the glue spraying and bottom pasting process is improved, and meanwhile the paper bag with the edge needing glue spraying and bottom pasting cannot be hindered.
Owner:JIANGMEN KAICHUANG PACKING CO LTD

Electromagnetic device for converting mechanical energy into electrical energy

Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES