16 results about "Ampere" patented technology

The invention relates to the technical field of power electronic component manufacturing and advanced composite material application, in particular to a 3D inductor based on the Ampere's law and a method thereof. The three-dimensional precise interlocking winding comprises a functional composite framework, a three-dimensional precise interlocking winding and a magnetic core assembly, according to the system, a framework is formed by compositing a heat-conducting insulating substrate and soft magnetic powder, and air gaps between winding layers are physically filled through step-shaped positioning ribs; the core is that a low-thermal-resistance export path is established by utilizing the high heat conduction characteristic of the framework, and a heat conduction mode is converted from coil-to-air to coil-to-framework; the gradient difference between the core temperature and the surface temperature in the coil is effectively reduced through the embedded heat dissipation array, the heat dissipation problem under the high power density is solved, and the device performance is remarkably improved.

The utility model relates to the technical field of electrical measurement, and discloses a novel mutual inductor volt-ampere characteristic tester which comprises a tester body, a fixed base is arranged on the side surface of the tester body, and the upper side and the lower side of the two ends of the fixed base extend outwards and are provided with bolt insertion holes. And the outer surface of the tester body is provided with a screw hole corresponding to the size of the interior of the bolt insertion hole, and the limiting lantern ring of which the position can be adjusted is arranged, so that the tail end of a wire is clamped in wire clamping grooves formed in the upper side and the lower side of the limiting lantern ring in the middle of the winding column after the wire is wound; the head end and the tail end of the wire are fixed through the three limiting lantern rings, the head end and the tail end of the wire can be limited after the wire is wound, then the sealing baffles are inserted into the two corresponding limiting clamping grooves to seal the opening of the storage box, the arranged limiting lantern rings can prevent the two ends of the wire from loosening after the wire is wound, and a good fixing effect can be achieved.

This invention discloses a method and system for preventing electrode breakage in refining furnaces using quantitative bottom blowing of hot slag with low current, belonging to the field of metallurgical technology. The method includes: pouring circulating hot slag at a temperature not lower than 1450℃ into the ladle to soften the crusted slag layer; quantitatively adjusting the bottom blowing argon flow rate, extracting the argon pore opening diameter using a visual sensor and establishing a calculation model to maintain liquid level stability; switching the electrode raising and lowering to manual mode, setting a low arc-starting current of 10000 amperes, and using a laser reference to control the three-phase electrode flatness error within ±5mm; acquiring electrical and acoustic signals at a period of not less than 100 milliseconds to construct a multi-dimensional model to determine successful arc ignition; after stabilization, increasing the power at a preset slope and switching back to automatic mode. Through hot slag modification, quantitative bottom blowing, low-current arc ignition, and multi-dimensional monitoring, the risk of electrode breakage in the early stages of arc ignition is significantly reduced, improving the safety and stability of the refining process.

This application provides a modeling method and system for predicting the core loss of a high-frequency transformer, comprising: measuring the magnetic properties of the core material at different frequencies based on an experimental platform, and obtaining the magnetization curve and loss density curve of the core material according to Ampere's circuital law; inputting the magnetization curve into a constructed geometric model, setting excitation and boundary conditions, establishing a finite element model and performing finite element simulation analysis to obtain the loss density distribution and magnetic flux density distribution within the high-frequency transformer core; and constructing a loss model by introducing a gradient coefficient and the average value of the loss density, the magnitude of the magnetic field strength gradient, and the average value of the magnitude of the magnetic field strength gradient obtained from the finite element model, to predict the core loss. This application provides important basis for material selection, geometric structure optimization, and thermal design of high-frequency transformers, helping to shorten the R&D cycle, reduce trial production costs, and improve the overall performance of high-frequency transformers.

The utility model discloses an anti-drop AMP wire clamp, which relates to the technical field of AMP wire clamps and comprises a wire clamp shell, an insertion extrusion assembly is arranged in the middle of the inner side of the wire clamp shell, electric power circuits are arranged on the left side and the right side in the wire clamp shell, and the electric power circuits can pass through the wire clamp shell left and right. According to the utility model, the extrusion degree can be accurately controlled by rotating the control disc, wires of different specifications can be adapted, the applicability of the device is improved, the contact area with the wire clamp shell is enlarged by the threaded insertion column, the friction force is increased, and the return is prevented, so that the connection stability of the wire clamp is improved, and the continuous and stable power supply of an electric power circuit is ensured; extra supporting force can be provided through two springs when the thread insertion column is screwed in through the supporting assembly, so that the thread insertion column is tightly attached to the thread groove, looseness caused by external factors such as vibration is effectively resisted, and the stability of the overall structure of the wire clamp is enhanced.

The invention provides a 3D inductor design management method based on the Ampere's law, and relates to the technical field of data processing, and the method comprises the steps: building a magnetic field calculation model, mapping current data and geometric data to the magnetic field calculation model, forming a matrix structure, obtaining an original calculation matrix, carrying out the expansion according to a preset step length, obtaining an expansion matrix, and carrying out the calculation of the expansion matrix; the expansion matrix is normalized according to the calculated magnetic flux equilibrium value, a normalized matrix is obtained, an iterative link is established, an iterative matrix calculation electric field regulation value is obtained, the iterative matrix is decomposed according to the normalized matrix, a decomposition matrix is obtained, sub-matrixes of the decomposition matrix are correspondingly associated with geometric data, and a parameter mapping set is obtained; and carrying out constraint processing on the parameter mapping set, judging whether a convergence result meets a preset design condition or not, obtaining inductor design management data, and carrying out resource allocation and cooperative control on a design process. According to the method, resource and collaborative management of the 3D inductor design process is realized through matrix modeling.

The invention discloses a permanent magnet wind driven generator inductance parameter identification method based on a JA model and data fusion, and the method comprises the following steps: decomposing the magnetization intensity of a ferromagnetic material into a reversible component and an irreversible component, deducing the nonlinear relation between inductance and current through combining the Ampere loop law, introducing a cross saturation coefficient to correct the inter-axis coupling effect, and identifying the inductance parameter of the permanent magnet wind driven generator. Establishing an inductance basic model in a magnetic saturation state; integrating the influences of current, temperature and frequency to form a composite inductance model; establishing a state equation based on the voltage equation and the flux linkage equation; dynamic prediction and updating of states and parameters are realized through extended Kalman filtering, parameter correction is driven by using flux linkage errors in combination with a model reference adaptive system, and finally, weights are adjusted based on disturbance errors of rotational inertia and friction coefficients, so that fusion identification is realized. According to the invention, through physical mechanism modeling and multi-field coupling correction, high-precision tracking of inductance parameters under a wide working condition is realized, and the identification precision and generalization ability of a magnetic saturation region are significantly improved.

The present application provides a kind of available ampere-hour management method and system of group vehicle.First, a first available ampere-hour and a second available ampere-hour corresponding to a first electric vehicle and a second electric vehicle in a group are provided in a remote server.During a certain billing period, the first used ampere-hour of the corresponding first electric vehicle and the second used ampere-hour of the corresponding second electric vehicle are continuously received by a network.Then, it is judged whether the first used ampere-hour exceeds the first available ampere-hour, and whether the second used ampere-hour exceeds the second available ampere-hour.When the first used ampere-hour exceeds the first available ampere-hour and the second used ampere-hour does not exceed the second available ampere-hour, the second available ampere-hour is deducted by the part of the first used ampere-hour exceeding the first available ampere-hour.

The application discloses a permanent magnet wind generator inductance parameter identification method based on JA model and data fusion, comprising the following steps: decomposing the magnetization intensity of ferromagnetic material into reversible component and irreversible component, deducing the nonlinear relationship between inductance and current in combination with Ampere loop law, introducing cross saturation coefficient to correct the inter-axis coupling effect, and establishing an inductance basic model under magnetic saturation state; integrating the influences of current, temperature and frequency to form a composite inductance model; establishing a state equation based on a voltage equation and a flux linkage equation; realizing dynamic prediction and update of state and parameters through extended Kalman filtering, combining a model reference adaptive system to drive parameter correction by using flux linkage error, and finally adjusting weights based on disturbance error of rotational inertia and friction coefficient to realize fusion identification. Through physical mechanism modeling and multi-field coupling correction, the application realizes high-precision tracking of inductance parameters under wide working conditions, and significantly improves the identification precision and generalization ability in the magnetic saturation region.

This utility model relates to the field of rotary joint technology, specifically to a high-sealing rotary joint, comprising: a fixed shell, a rotating shaft tube rotatably connected to the inner wall of the fixed shell, an airtight groove formed on the inner wall of the fixed shell, and a sealing gasket fixedly connected to the outer wall of the rotating shaft tube. The sealing gasket is made of a modified material with added permanent magnet powder. This utility model includes a detection component inside the sealing gasket. When the diameter of the sealing gasket decreases due to wear, the circumference of the strain gauge increases under the elastic action of the sealing gasket. The resistance of the strain gauge changes with stretching. According to the principle of strain effect, when the strain gauge is stretched, its length increases and its cross-sectional area decreases. According to the law of resistance, the resistance of the strain gauge increases, and the current through the strain gauge decreases. After the PLC controller detects the current change, it increases the current flowing into the electromagnetic coil. The magnetic field strength generated by the electromagnetic coil is proportional to the current flowing into the coil, according to Ampere's law.

The utility model discloses an ampoule bottle bottom sealing machine, which relates to the technical field of ampoule bottle heat sealing and comprises a heat sealing machine main body. A rotating disc is arranged at the bottom of the inner surface of the heat sealing machine body, a water tank is installed on the upper surface of the rotating disc, sliding guide rails are arranged on the two sides of the inner surface of the water tank, a containing disc is slidably installed on the outer surfaces of the sliding guide rails, a containing block is arranged on the upper surface of the inner wall of the water tank, and a waterproof motor is installed on the surface of the containing block. Compared with an existing common ampoule bottle heat sealing machine, according to the ampoule bottle bottom sealing machine, through the arrangement of the threaded rod, the threaded rod can drive the containing disc to conduct spiral transmission according to the length of an ampoule bottle, the height of the containing disc is adjusted, the containing disc can be placed in the containing disc, the containing disc can be placed in the containing disc, and the sealing effect is good. Ampere bottles with different heights can be used, the placing stability of the ampere bottles is ensured, and the ampere bottles can be normally sealed by using a heat sealing machine.

This invention relates to a process for preparing highly efficient activated oxygen under low-temperature conditions. The preparation process is carried out in an ozone generator, which includes a shell containing a cooling plate and an electrode plate. A heat exchange channel is formed within the cooling plate. A high-voltage wire and a high-voltage electrode are fixedly mounted on the electrode plate, forming an air gap between them. A slide rail is fixed to the shell, with its axis skewed from the axis of the air gap's transmission direction. The electrode plate slides on the slide rail. A magnetic attraction mechanism is provided on the shell, with the high-voltage wire located within the magnetic field of the mechanism. The axes of the magnetic attraction mechanism, the high-voltage wire, and the slide rail intersect or are skewed. Based on Ampere's law, this invention uses the high-voltage alternating current within the magnetic attraction mechanism and the high-voltage wire to drive the electrode plate to reciprocate within the magnetic field. This causes the high-voltage electrode to reciprocate across the flow cross-section of the air gap, thereby uniformly ionizing the oxygen within the air gap into ozone. This process is simple, efficient, safe, and reliable.

This invention discloses a wide-range current measurement dynamic compensation method and system for excitation system testing, belonging to the technical field of excitation system technology. This invention acquires the temperature of key chips in the signal conditioning module in real time, dynamically calculates zero-point offset and actual gain based on factory calibration parameters, performs digital filtering and noise reduction on the acquired voltage signal, and uses a single-iteration approximation method to complete initial current estimation and nonlinear correction, achieving full-range dynamic error compensation. The system includes a signal conditioning and acquisition module, a temperature acquisition module, a dynamic compensation processor, and an output module. This invention overcomes the shortcomings of traditional testing devices such as manual range switching, static calibration lag, and low accuracy at low currents. It can achieve continuous high-precision measurement over a wide range from milliamperes to tens of amperes, effectively suppressing temperature drift, noise, and nonlinear errors, significantly improving testing efficiency and stability, and is suitable for on-site maintenance and commissioning of hydropower station excitation systems.

This invention relates to the field of power electronic component manufacturing and advanced composite material application technology, specifically a 3D inductor based on Ampere's law and its method; it includes a functional composite skeleton, a 3D precision interlocking winding, and a magnetic core assembly; the system uses a thermally conductive insulating matrix and soft magnetic powder composite molded skeleton, and physically fills the air gap between winding layers through stepped positioning ribs; its core is to utilize the high thermal conductivity of the skeleton to establish a low thermal resistance heat dissipation path, changing the heat conduction mode from coil to air to coil directly to the skeleton; this invention effectively reduces the temperature gradient difference between the core temperature and the surface temperature inside the coil through an embedded heat dissipation array, solving the heat dissipation problem under high power density and significantly improving device performance.

The portable harmless electrolytic treatment device for the photosensitive waste liquid comprises a liquid tank, a power supply, a variable resistor and a combined ampere-voltage meter, the liquid tank is used for containing a waste fixing solution and placing an anode plate and a cathode plate which are partially immersed in the waste fixing solution, the anode plate and the cathode plate can be conducted when being electrified, and the combined ampere-voltage meter is connected with the power supply. Silver in the waste fixing solution is recycled through the negative plate; the variable resistor can adjust the power supply voltage of the power supply and adjust the break-over voltage or current of the anode plate and the cathode plate to be smaller than or equal to a threshold value; the combined ampere-voltmeter can measure and display the numerical values of the current power supply voltage and current, silver ions are recycled through the negative plate, and the cost is saved.

The utility model discloses an oscillation device for detecting the sealing performance of an ampoule bottle, which comprises a base, the four ends above the base are fixedly connected with sliding rods, the sliding rods are connected with a movable frame in a sliding manner, the two ends above the base are fixedly connected with rotating seats, the interiors of the rotating seats are rotatably connected with rotating shafts, and the rotating shafts are connected with the movable frame in a sliding manner. The two ends of the rotating shaft are fixedly connected with rotating discs, and the rotating shaft is fixedly connected with a first gear. According to the ampere bottle supporting device, the motor, the first gear, the second gear, the rotating shaft, the rotating discs and the connecting rod are arranged, so that the movable frame can be driven to slide on the sliding rods, and a worker places an ampere bottle in the two supporting assemblies; according to the ampere bottle vibration device, rapid vibration operation can be achieved through the vibration assembly on the lower portion, meanwhile, the adjustable arc-shaped clamping assembly is arranged in the supporting assembly, the ampere bottle can be stably clamped, it is guaranteed that the ampere bottle cannot fly out in the vibration process, and the vibration effect of the ampere bottle vibration device is greatly improved.