68 results about "Shunt Device" patented technology

This application discloses a BMS control system, relating to the field of battery safety protection technology. The system includes: a BMS control unit, a shunt, a CFET, and a DFET, all mounted on the same PCB board; the source of the CFET is connected to the positive terminal of the battery; the drain of the CFET is connected to the drain of the DFET; the source of the DFET is connected to a load or charger; the negative terminal of the battery is connected to one end of the shunt; the other end of the shunt is connected to the load or charger; the gates of the CFET, the DFET, and the shunt are all connected to the BMS control unit. This application protects the battery circuit load safety without increasing additional hardware costs by setting up a BMS control unit.

This invention proposes a strip stamping forming device for a distributor, belonging to the technical field of distributor production equipment. The device includes a frame, a stamping table, a pre-clamping mechanism, and a blanking mechanism. A main drive mechanism is mounted on the frame, and a stamping die is installed on the main drive mechanism. The pre-clamping mechanism and the blanking mechanism are configured to sequentially perform the following operations within a complete working cycle of the main drive mechanism: driving the stamping die downwards while simultaneously driving the pre-clamping mechanism to clamp the strip before the punch of the stamping die contacts the strip; maintaining the clamping force while allowing the stamping die to complete the stamping stroke; driving the stamping die back upwards while simultaneously driving the blanking mechanism to separate and blank the formed part. Specifically, this invention provides a strip stamping forming device for a distributor that solves the problems of response delay and control asynchrony between the independent clamping mechanism and the main stamping action in the prior art through the time-sequential linkage of the pre-clamping mechanism, the blanking mechanism, and the main drive mechanism.

The invention relates to a measuring device for measuring a current for energy supply, comprising a measuring circuit with two connection contacts (X3, X4; X5, X6), through which a current (I1) for energy supply is guided through the measuring circuit via a current input and a current output for measuring the current, wherein the measuring circuit is equipped with a limiting voltage device (DX) and comprises a shunt (RX), characterized in that, adjacent to the connection contacts (X3, X4; X5, X6), the shunt (RX) is arranged first as a first component of the measuring circuit and electrically connects the current input and the current output to one another, in particular such that a signal input of the measuring circuit is designed low-ohmic thereby. The invention also relates to a charging station with a measuring device according to any one of claims 1 to 8 and a control device for controlling a charging process with current.

This invention discloses a DC-side shunt current acquisition and calibration method, comprising the following steps: acquiring the shunt sampling voltage; converting the ADC voltage into pack current; filtering the sampled signal, including the following two steps: moving average filtering: using a 50-fold moving average filter for data preprocessing, the moving average filter constructs a fixed-length sampling window, calculates the arithmetic mean of continuously acquired DC-side current sampling values ​​within the window, and updates the filtered output value in real time; adaptive envelope filtering: introducing an adaptive envelope real-time filter, through its targeted filtering mechanism, to achieve precise control of current signal amplitude fluctuations; calculating the error between the original and filtered signals; and determining whether the result is smooth. Through the above methods, this invention introduces an adaptive envelope real-time filtering algorithm, significantly improving current detection accuracy, reducing project costs, and enhancing BMS robustness.

The utility model provides a kind of shunt resistor, it includes: resistor body, insulating support, two electrodes and pin.The two electrodes are respectively arranged at the both ends of resistor body, and mounting through hole is set on each electrode;Pin is worn and is arranged mounting through hole, pin has starting end and tail end, starting end is exposed outside mounting through hole, tail end is welded together with mounting through hole, and tail end is equipped with a root gap near the edge of mounting through hole;Insulating support includes pad and multiple profiling buckles on pad and anti-deviation column.Pin is worn and is arranged mounting through hole, compared with blind hole, mounting through hole gives pin greater contact area, pin is not prone to deviation, and fixed connection is more reliable by welding, pin is not prone to fall off;Insulating support and resistor body and electrode keep close, provide support and place repair resistance when resistor body occurs deformation, profiling buckle and anti-deviation column cooperate and limit two electrodes, prevent external force from leading resistance to occur deformation in the process of fixed pin.

The utility model provides a kind of lamp strip belongs to lighting equipment technical field.It solves the problem of existing lamp strip reverse insertion easy damage.This lamp strip, including the lamp strip main body with controller, shunt, connector and plug connector, controller is composed of main control body with insertion hole and insertion block with insertion strip, main control body is located at insertion hole place end face and is provided with insertion unit one connected with it, and is matched with insertion block, and prevent reverse insertion, connector is composed of connection main body with connecting hole and connecting block with connecting strip, connection main body is also provided with insertion unit two connected with it on the end face of connecting hole place, and is matched with connecting block, and prevent reverse insertion.The utility model has the advantage of preventing reverse insertion.

A conductor arrangement for a motor vehicle (10) for conducting electrical energy from a primary power distributor (14a, 14b) to a remote secondary power distributor (18), to which at least one electrical consumer (16, 17) can be connected, is characterized in that a splitter unit (19) is arranged on the primary power distributor (14a, 14b), and this is connected to the secondary power distributor (18) via at least two spatially separated conductor strands (20a, 20b, 20c) for dividing the total current, wherein a maximum strand current (IMax1, IMax2, IMax3) is stored for each conductor strand (20a, 20b, 20c) at which the limits of electromagnetic compatibility with the environment (EMC limits) are complied with, wherein furthermore the splitter unit (19) for each conductor strand (20a, 20b, 20c) a current measuring device (24a, 24b, 24c) and a series resistor adjusting device (26a, 26b,26c) includes the setting of a series resistor, and the series resistor in each conductor string (20a, 20b, 20c) is adjustable so that the respective maximum string current (IMax1, IMax2, IMax3) is not exceeded. This reduces the electromagnetic fields. By adjusting the conductor resistance in each conductor string, the EMC limits can be met without restricting passenger comfort functions.

This application provides a method, apparatus, electronic device, and medium for estimating the state of charge (SOC). The method includes: acquiring a first average offset current of a shunt under a first preset state, and determining a static compensation value based on the first average offset current; acquiring a second average offset current of the shunt under a second preset state, and determining the second average offset current as a dynamic offset reference value; acquiring the original sampled current of the shunt under a third preset state, and determining a correction current based on the current closing duration of the main and negative relays, the original sampled current, the static compensation value, and the dynamic offset reference; and performing ampere-hour integration based on the correction current to obtain the SOC estimation result of the power battery. This application aims to eliminate current sampling errors caused by the thermoelectric electromotive force generated by the shunt due to the heating of the main and negative relays, thereby improving the long-term accuracy of power battery SOC estimation.

Systems, methods, and apparatuses for measuring capacitance of a load. An apparatus includes a ground connector, an output connector configured to couple to the load, and a time-varying signal source configured to inject a time-varying voltage signal onto a conduction path between the ground connector and the output connector. A DC power source or amplifier is configured to apply a DC offset to the time-varying voltage signal, and a current monitor is configured to measure time-varying current in the conduction path. A capacitance module is configured to determine the capacitance based upon at least one of the time-varying current, and accuracy of this measurement is improved by arranging an AC shunt across the DC power source or amplifier.

Provided is a method for making a high-resistance value coaxial shunt, including providing resistor bodies, the resistor bodies being provided in a stacked manner, and a conducting length of each of the resistor bodies being greater than the physical length of the resistor bodies in a stacked state. According to the method for making a high-resistance value coaxial shunt provided by the present disclosure, by providing the resistor bodies as the stacked structure, the conducting length of the resistor bodies can be effectively prolonged so that in the case that the conducting area and the physical length of the resistor bodies are not changed, the magnitude of the resistance is increased. The present disclosure further provides a current detection system.

The application discloses a large-current detection method and system based on dual-voltage redundancy checking, acquires an analog voltage signal, a digital voltage signal and a real-time temperature of a shunt resistor, calculates a dynamic resistance value of the shunt resistor according to the acquired real-time temperature, calculates a first current value according to the analog voltage signal and the dynamic resistance value and a second current value according to the digital voltage signal and the dynamic resistance value, compares a difference between the analog voltage signal and the digital voltage signal with a preset threshold value, and selects an output current according to a current change condition if the difference is less than or equal to the preset threshold value. Through the dual-voltage comparison, real-time white-box monitoring of the internal state of a sensor chip is realized. Even if the chip is damaged, the system can still work through the analog path, and safety accidents caused by single-point faults are avoided.

This invention relates to the field of overload protection technology, specifically to a motor overload protection device based on a DC shunt. It includes a DC electric valve thermal relay and its matching shunt. The DC electric valve thermal relay and its matching shunt include a primary amplification circuit, a range selection circuit, a secondary amplification circuit, a rate calculation circuit, an RC charging and discharging circuit, a rate hysteresis circuit, an automatic zeroing circuit, a self-reset circuit, and a relay control circuit. The motor overload protection device of this invention features a simple RC combination method, making it easy to change the R value. If new valve protection requirements arise, simply changing the R value can adjust for more inverse time protection functions to meet the new valve motor requirements, without needing to redesign and adjust the entire product. This not only does not affect subsequent evaluation but also quickly expands the product's versatility.

The present disclosure relates to a motor driver circuit for an electric motor comprising a first node, the motor driver circuit comprising a first resistive shunt device configured to be coupled to the first node.

The application relates to a multi-head hot runner nozzle, which comprises a shunt device, one end of the shunt device is provided with an inlet, the other end is provided with a plurality of outlets, the inlet is communicated with the plurality of outlets through a plurality of shunt pipes, each outlet is respectively communicated with an outlet pipe, and the end, away from the shunt device, of the outlet pipe is provided with a nozzle head; the end, away from the outlet, of the shunt device is further provided with a plurality of valve needle openings, the valve needle openings are communicated with the outlet pipes through valve needle lower guide pipes, and the valve needle lower guide pipes are coaxially arranged with the outlet pipes; a sealing mechanism is arranged at the valve needle openings, the sealing mechanism comprises valve needles and a driving assembly for driving the valve needles to reciprocate, the plurality of valve needles extend into the valve needle lower guide pipes from the valve needle openings and extend to the nozzle head, and the valve needles open or seal the nozzle head when reciprocating. The application has compact structure and better sealing effect on the nozzle head.

This invention discloses a shunt fixing device and a shunt installation method, relating to the field of electricity meter technology. The shunt fixing device includes a base, a positioning post, and a fastening bracket. The base is disposed within a housing and has mounting seats corresponding to the mounting notches on the shunt, with each mounting seat having at least two first mounting positions. The positioning post corresponds in shape to the mounting notches on the shunt and is mounted on the first mounting positions. The fastening bracket has second mounting positions corresponding to the first mounting positions, and the first and second mounting positions are assembled and connected by connectors. The shunt fixing device provided by this invention, by setting different mounting positions on the mounting seats on the base, facilitates the installation of shunts of different specifications by adjusting the position of the positioning post, improving the compatibility of the base with different shunts and reducing mold opening costs and material management costs.

This application provides a high-power contactor thermal testing device, belonging to the technical field of high-power contactor performance testing. The device includes a coil contact current sensor T1 for measuring the operating current flowing through the coil contacts; a coil contact voltage sensor T2 for measuring the operating voltage across the coil contacts; a shunt T5 connected in parallel across the main contacts; a main contact current sensor T3 for measuring the operating voltage across the shunt T5; a main contact voltage sensor T4 for measuring the operating voltage across the main contacts; and an A / D conversion module T6 connected to the coil contact current sensor T1, coil contact voltage sensor T2, main contact current sensor T3, and main contact voltage sensor T4. The A / D conversion module T6 also connects to a host computer software system. This device can measure the coil contacts and main contacts during operation without disassembling the wiring, saving manpower and resources.

This invention belongs to the technical field of current acquisition systems, and provides a shunt current acquisition structure and battery management system. The acquisition structure includes a shunt, a redundant acquisition circuit, an analog front-end chip, and a microcontroller unit. The shunt is connected to the redundant acquisition circuit. The redundant acquisition circuit is connected to the analog front-end chip based on different safety levels. The analog front-end chip is connected to the microcontroller unit. This invention uses a dual-channel redundant current acquisition design to decompose the functional safety level, covering open-circuit faults caused by the shunt itself, while also improving the overall calculation performance. The first acquisition circuit of this invention has an allocation functional safety level of ASIL B(C), and the second acquisition circuit has an allocation functional safety level of ASIL A(C). Based on the intended use of the acquisition circuit, the acquisition circuit is reasonably optimized while meeting the safety level requirements, which helps to reduce costs.

The application discloses a kind of reliability test methods, devices, equipment, medium and systems of shunting equipment.The method comprises: obtaining the analog flow description information matched with the shunting equipment to be tested, and generating the analog flow matched with the analog flow description information by flow simulation equipment and sending to the shunting equipment to be tested;Obtain the reliability test script, and split the reliability test script into software exception simulation script and hardware exception simulation script;By the way of software simulation equipment executing software exception simulation script and hardware simulation equipment executing hardware exception simulation script, software and hardware exceptions are input to the shunting equipment to be tested to carry out reliability test;According to the real-time running state of the shunting equipment to be tested in the reliability test process, the performance monitoring equipment generates reliability test result.The technical scheme of the application solves the problem of insufficient coverage of reliability-related scenarios in the existing shunting equipment reliability test, and improves the effectiveness and completeness of the reliability test.

The utility model relates to drop tank technical field, concretely is a kind of dilute hydrochloric acid drop tank shunt device of easy adjustment, including machine body, machine body is drop tank, two groups of mounting seat of being set at machine body side, mounting seat is used to install shunt pipe, shunt pipe is clamped in mounting seat, the inside of shunt pipe and machine body is communicated, the outside of shunt pipe is equipped with clamping groove. This dilute hydrochloric acid drop tank shunt device of easy adjustment, through the cooperation between swing plate and lug, and then when lug is jolted, it will be driven into clamping groove by the way of driving horizontal plate when lug is jolted, shunt pipe will be stably installed in machine body, and when the shunt pipe is no longer clamped when the clamping block moves back, the operator can disassemble shunt pipe, so that the device can enable operator to disassemble shunt pipe without carrying disassembling tool, reduce the working strength of operator, improve the efficiency of shunt pipe disassembly work.

A current measurement device with a shunt resistor of a resistive core with an opening and measurement leads, a Rogowski coil with electrical contacts surrounding the resistive core, conductive layers on first and second sides of the resistive core, one or more insulative layers between the conductive layers and the Rogowski coil, the current measurement device configured to combine signals from the shunt resistor and the Rogowski coil. The current measurement device may have a Rogowski coil on a flexible substrate at least partially wrapped around the shunt. A current measurement device has a rigid substrate, vias filled with a conductive material through the rigid substrate, conductive layers on the top surface and the bottom surface connecting to the vias to form a Rogowski coil structure, one or more insulative layers directly on the coil structure, a shunt resistor directly on the one or more insulative layers.

This invention discloses a method for reducing the failure probability of solar array shunts in low-Earth orbit (LEO) satellites. The method determines the shunt thermal power boundary by jointly using a shunt current threshold and a shunt temperature threshold. It then clusters the set of satellites to be monitored, identifies the set of satellites exceeding the shunt thermal power boundary, and pre-emptively manipulates the solar array bias of these satellites. This method effectively reduces the probability of shunt failure in LEO satellites.

The application relates to a LAP grinding fluid shunting device and an improved method thereof, and belongs to the technical field of semiconductor wafer processing equipment, which comprises a lower rack, a grinding rotary table arranged at the upper end of the lower rack, an upper rack arranged at the upper part of the lower rack and surrounding the grinding rotary table, a grinding pressing plate movably and tightly arranged in the upper rack, a lifting cylinder arranged between the grinding pressing plate and the upper rack, a liquid guide ring groove communicated with the grinding pressing plate and arranged on the grinding pressing plate, a grinding fluid injection pipe extended to the liquid guide ring groove and arranged at the side of the lifting cylinder, a pipe clamp arranged between the grinding fluid injection pipe and the upper part of the lifting cylinder and used for fixing the grinding fluid injection pipe, a plurality of liquid distribution grooves in annular distribution and communicated with the liquid guide ring groove and arranged on the grinding pressing plate, and a plurality of liquid distribution holes communicated with the lower end surface of the grinding pressing plate and arranged in the liquid distribution grooves. The device has the characteristics of more uniform shunting, more stable liquid path and more compact structure, and can effectively solve the problems of uneven distribution, easy blockage and unstable flow rate of the grinding fluid in the transmission process.

The application discloses a kind of multi-field coupling's progressive micro abrasive jet targeting polishing device and its polishing method, belong to ultra-precision machining field, including abrasive supply system, progressive micro abrasive jet generation system, electrostatic charging and electric field control system, workpiece clamping shunt and detection system and abrasive recovery system.The application generates progressive high-pressure jet by motor-driven cam mechanism to push piston, evenly distributes into porous spinneret through shunt device, uses the smooth incremental effect of kinetic energy to greatly improve the continuous penetration of abrasive to deep hole inner wall and effectively prevent congestion;At the same time, the open bipolar plate induction electrostatic generator is used for non-contact charging, and the semi-open flow field structure without bottom cover can make the splashed atomized liquid droplets quickly escape to the periphery, which fundamentally eliminates the short circuit effect of liquid accumulation;At the same time, the open environment eliminates the pneumatic interference, ensures that the jet has high collimation and absolute safety and insulation under high-pressure working environment before entering the micro-hole.

A shunt device includes a shunt component and a flow regulation mechanism. The shunt component includes a body, and an inlet and an outlet located at both ends of the body, and the shunt component defines a shunt channel for a pressurized fluid. The flow regulation mechanism is connected to the shunt component and is configured to regulate a flow rate of the pressurized fluid flowing through the shunt channel. The flow regulation mechanism includes a deformable blocking portion configured to, when a fluid pressure at the inlet of the shunt component and / or inside the shunt component is less than a fluid pressure external to the flow regulation mechanism, be driven by the fluid pressure external to the flow regulation mechanism to collapse radially, thereby causing the flow regulation mechanism to partially close the shunt channel.

The present application belongs to the technical field of shunt, and particularly relates to a shunt integrated assembly and signal processing method and device with temperature acquisition, which is configured with a shunt body with a current wiring guide rod and a red copper mounting flange. Temperature data is acquired by a temperature acquisition module built in the body. The temperature data is collected by a signal collection module and transmitted to a signal processing unit. The signal processing unit analyzes and processes the temperature data and synchronously acquired current data. The processed data is uploaded to an upper computer, and current-temperature relationship data and equipment state judgment results are output. The method effectively overcomes the influence of shunt resistance drift with temperature on measurement through integrated 16-point current sampling and real-time temperature compensation, and realizes high-stability current measurement under extra-high voltage direct current conditions.

The utility model provides a coal four -way shunt device can realize the directional discharge of coal, namely conventional four -way function, sends the material into a coal yard or the coal bunker before the stove, can realize the discharge to downstream two directions simultaneously, namely the shunt function. The import shunt guide pipe is arranged at the upper portion of the shell, and the import shunt guide pipe is provided with a plurality of discharge pipes; the proportional adjusting baffle is rotatably arranged in the import shunt guide pipe and located above the discharge pipe; the baffle driving device is arranged on the import shunt guide pipe, and the baffle driving device is connected with the proportional adjusting baffle and used for driving the proportional adjusting baffle to rotate; the chute assembly comprises a swing chute and a chute driving device; the swing chute is rotatably arranged in the shell, the inlet of the swing chute is communicated with one discharge pipe of the import shunt guide pipe, and the outlet of the swing chute is communicated with the discharge port of the shell; the chute driving device is arranged on the shell, the chute driving device is connected with the swing chute, and the chute driving device is used for driving the swing chute to swing.

The utility model discloses alloy liquid shunt device relates to metal casting technical field including shell body, the vertical through -hole is equipped with in the shell body middle part, the through -hole is circular truncated cone, and the lower end is gathered and is bound, the inside plug -in of through -hole is equipped with a plurality of shunt piece, a plurality of shunt piece mutually adhere and splice into the circular truncated cone body of upper surface recess, the circular truncated cone body outside wall adheres the through -hole inboard wall, and any shunt piece structure of splicing into circular truncated cone is same, any shunt piece is all seted up with the shunt hole, the shunt hole is obliquely arranged, and the shunt hole bottom end is seted up in shunt piece bottom near the inboard wall side of shell body, the shunt hole top end is seted up in shunt piece top away from the inboard wall side of shell body, through setting up a plurality of liquid distribution hole in the same position outside the distance axis, for realizing even liquid distribution, through setting up a plurality of shunt piece, through changing the quantity of splicing shunt piece for adjusting the shunt quantity, through the setting of the shunt piece of splicing, it is convenient for replacing after damaging.

The application relates to the current monitoring technical field and discloses a stable shunt and a sampling device, the stable shunt comprising: a resistor body used as a main passage of a current to be measured; a composite plate used for connecting an external circuit, the composite plate being oppositely arranged on the two sides of the resistor body, and the same composite plate comprising a first metal plate and a second metal plate which are connected in a composite mode; and a sampling structure used for collecting a differential pressure signal, the sampling structure being oppositely connected to the resistor body; wherein the sampling structure comprises a sampling body which is integrally connected to the side edge of the resistor body and close to the second metal plate, and the sampling body protrudes from the resistor body in a direction perpendicular to the upper surface of the resistor body. The application improves the stability of the shunt.