24 results about "Current divider" patented technology

The invention relates to a current switching-on and switching-off converter which comprises a shell barrel, a plurality of limiting rings and a plurality of wires, a shell cavity is formed in the shell barrel, the limiting rings are contained in the shell cavity, limiting holes and conductive springs are arranged in the limiting rings, the limiting holes are communicated with guide holes, the conductive springs surround the limiting holes, one ends of the wires are electrically connected with the conductive springs, and the other ends of the wires are electrically connected with the conductive springs. And the other end of the lead extends out of the shell cylinder. By adopting the technical scheme provided by the invention, when the number of branch currents is more, the wires are not limited to be arranged in the same plane any more, the reduction of the appearance size of the electric connector is facilitated, and the electric connector can be assembled and applied in a narrow space range; when the electric connector provided by the invention is plugged with other electric connectors, the rigid surfaces of the conductive parts are in contact with the flexible surfaces of the conductive springs, so that good electrical contact between the electric connectors can be ensured, and the reliability of electrical connection is ensured.

The invention discloses an MMC rectifier and a control method and system thereof. The MMC rectifier comprises a voltage outer loop, a current distributor, a current inner loop, a reverse Park conversion module and a PWM control module. The voltage outer ring is provided with a PI controller, the output end of the PI controller is connected with the input end of a current distributor, the current inner ring is provided with a passive controller, the output end of the current distributor is connected with the input end of the passive controller, and the output end of the passive controller is connected with the input end of a reverse Park conversion module. And the output end of the reverse Park conversion module is connected with the input end of the PWM control module.

The signal transmission system comprises a transmitter circuit, a receiver circuit and a signal cable. A current divider is formed by a terminating resistor between the signal conductors of the signal cable. The transmitter circuit drives a loop current. When the receiver circuit input voltage has a voltage level above a first switching voltage threshold value, the output voltage assumes a first voltage level. The output voltage maintains the first voltage level when the input voltage is below the first switching voltage threshold value but above a second switching voltage threshold value. The transmitter circuit is configured to modulate the loop current with at least two different non-zero magnitudes at successive times. The first magnitude is greater than a first switching current threshold value and the second magnitude is less than the first switching current threshold value and greater than a second switching current threshold value.

The invention relates to a DC charging distribution unit (UU1). Comprising a first primary side terminal (UU1F1) for receiving a first input current from a power unit (PU, PU1, PU2), a secondary side DC vehicle connection terminal (UU1S2) connectable to the vehicle to provide a vehicle charging current (id1), a first secondary side power sharing terminal (UU1S3) connectable to another DC charging distribution unit to provide a sharing current to the other DC charging distribution unit, and a current distributor (S1; S2) operable to select between a vehicle charging configuration and a power sharing configuration; a vehicle charging configuration (S1-1, S1-2, S1-3) in which the first input current is used to feed a vehicle charging current to the secondary DC vehicle connection terminal (UU1S2); in the power sharing configuration, the first input current is used to feed a sharing current to the first secondary power sharing terminal.

The utility model discloses a diverter, new energy automobile and energy storage equipment relates to diverter technical field, the diverter includes current sensing piece, current sensing piece is provided with first conductive piece and second conductive piece opposite to each other, the first conductive piece is provided with first mounting hole, the second conductive piece is provided with second mounting hole, the first mounting hole is provided with first mounting hole, the second mounting hole is provided with second mounting hole, and the second mounting hole is provided with second mounting hole. The first mounting hole and the second mounting hole are symmetrically arranged by taking the current sensing piece as the axis; the first magnetic resistance detection assembly is at least partially arranged in the first mounting hole; the first magnetic resistance detection assembly is used for detecting a magnetic field generated by current flowing through the first conductive part; the second magnetic resistance detection assembly is at least partially arranged in the second mounting hole; the second magnetic resistance detection assembly is used for detecting a magnetic field generated by current flowing through the second conductive part; the utility model aims to solve the technical problem that a thermoelectric force phenomenon occurs when a current divider detects current.

The utility model provides a current divider, a battery pack and a vehicle. The current divider comprises a conducting bar, a main control board and a connector, the conducting bar comprises a first surface and a second surface, and the first surface and the second surface are oppositely arranged along the thickness direction of the conducting bar; wherein a welding area is arranged on the first surface; the main control board is connected to the second surface. The connector is connected to the side, away from the conducting bar, of the main control board. According to the shunt, the welding area on the first surface is welded with the external connecting terminal, so that current transmission between the shunt and the external connecting terminal is realized, the influence caused by assembly tolerance and manufacturing tolerance can be effectively avoided, the contact internal resistance of a connecting part is reduced, and the service life of the shunt is prolonged. Meanwhile, connection between the shunt and the BMS board card is changed into direct connection through the connector, so that the connection process between the shunt and the BMS board card is simplified, the risk of electromagnetic interference is reduced, and the integration rate of components in the battery pack is improved.

The utility model discloses a diverter, a new energy automobile and an energy storage device, and relates to the technical field of diverters, the diverter comprises a diverter body, and the diverter body is provided with an accommodating hole; the magnetic resistance detection assembly is at least partially arranged in the accommodating hole; the magnetic resistance detection assembly is used for detecting a magnetic field generated by current flowing through the shunt body and outputting a corresponding magnetic detection signal; the temperature control assembly is used for detecting the temperature of the periphery of the accommodating hole and adjusting the temperature of the shunt body to be consistent according to the temperature of the periphery of the accommodating hole; the utility model aims to solve the technical problem that a thermoelectric force phenomenon occurs when a current divider detects current.

Current divider (31) comprising: - plated holes (105, 106) forming a first branch (32) of the current divider and a second branch (33) of the current divider through which the target current flows; - the first branch comprising first plated holes (105a) extending between a first surface (107) of a first conductive layer and a first surface (109) of a second conductive layer, and second plated holes (105b) extending between a second surface (108) of the first conductive layer and the first surface of the second conductive layer, the plated holes (105) of the first branch comprising pairs of adjacent plated holes, each comprising a first plated hole (105a) and a second plated hole (105b). FIGURE IN ABRIDGED DIAGRAM: Fig. 9

The application relates to the technical field of soil electro-osmotic dewatering, and particularly discloses a soil electro-osmotic dewatering power supply device and method comprising series-parallel power supplies, the device comprising a power supply, a plurality of current distributors and a plurality of electrode groups, wherein the power supply comprises a plurality of power supply modules with adjustable series-parallel states; the method comprises the following steps: device preparation; single-round power supply: starting voltage is applied to each electrode group through the current distributors, and the current of each group is detected; according to the size of the detected current of each group, the current of the group is controlled to be turned on or turned off or the size of the voltage of the group is adjusted through the current distributors; step-by-step voltage boosting and multi-round power supply. According to the application, the on-off of the current and the voltage adjustment are controlled according to the change of the current with time in the electro-osmosis process, the electro-osmosis is kept to be carried out under suitable voltage conditions, the electro-osmosis efficiency is improved, and the waste of electric energy is reduced; by adjusting the series-parallel states of the plurality of power supply modules, different current and voltage requirements in different power supply stages are met, and the design power of the power supply is reduced.

This invention provides a current divider circuit, comprising: a multiplier for multiplying an input current analog signal and a reference current analog signal; an operational amplifier for filtering and amplifying the output signal of the multiplier; an output frequency regulator for adjusting the frequency of the output signal of the operational amplifier; a latch comparator for converting the frequency signal output by the output frequency regulator into a square wave signal related to the input current analog signal; and an output conversion circuit for converting the square wave signal output by the latch comparator to obtain the division result of the input current analog signal and the reference current analog signal. This invention can realize the division of two analog input current signals. This structure effectively eliminates the influence of process deviations and input errors caused by traditional circuit structures on the signal conditioning system, improves the conversion accuracy of the signal conditioning system, and has the advantages of simple design, flexibility, and ease of implementation.

A DC charging distribution unit includes a first primary-side terminal for receiving a first input current from a power unit, a secondary-side DC vehicle connection terminal connectible to a vehicle for providing a vehicle charging current, a first secondary-side power sharing terminal connectible to another DC charging distribution unit for providing a sharing current to the other DC charging distribution unit, and a current distributor operably selected between a vehicle-charging configuration and a power-sharing configuration.A DC charging system includes at least one power unit including at least one power terminal and at least a first and second distribution unit. The distribution units are each spaced apart from the power unit by at least a first distance. The neighboring distribution units are spaced from each other by a second distance and are connected to one another at their secondary-side power sharing terminals and are electrically connected, to the power unit.

The utility model provides a shunt collection box structure and a battery pack. The shunt collection box structure comprises a lower shell, a shunt main body arranged in the lower shell, and an upper cover arranged on the lower shell. Wherein the side wall of the lower shell and / or the side wall of the upper cover are / is provided with a plurality of avoiding openings with different opening directions, each avoiding opening is used for allowing a copper bar connected with the shunt main body to pass through, the lower shell and / or the upper cover are / is provided with a baffle plate for shielding the avoiding opening, each baffle plate is rotationally arranged on the lower shell or the upper cover, or each baffle plate is rotationally arranged on the lower shell or the upper cover. And each baffle is connected with the shell and / or the upper cover through a breakable connecting unit. The current divider collection box structure can solve the problems that wiring harnesses connected with the copper bars are arranged disorderly, and external impurities enter the shell to cause short circuit, thereby being beneficial to improving the safety of a battery pack.

The invention discloses a low-voltage treatment method and device based on zero line current blocking, and relates to the field of three-phase load imbalance treatment of a power distribution network, and the method comprises the steps: obtaining a load-side zero line current, and generating a compensation current signal proportional to the load-side zero line current through hysteresis current tracking closed-loop control; the signal is filtered by an LC and amplified by a step-down transformer to obtain an injection current which is equal to the zero line current in amplitude and phase; the injection current is distributed to a three-phase line through the zero-sequence current distributor, so that load zero line current does not flow through a power supply zero line, zero line current blocking is achieved, the zero-sequence current distributor adopts a zigzag transformer structure, and it is guaranteed that zero-sequence current is evenly injected into three phases. According to the invention, zero line loss can be effectively eliminated, heavy-load phase current and loss can be reduced, line end voltage can be increased, three-phase voltage imbalance can be improved, and the device has the characteristics of fast response, simple structure and convenient installation.

The invention relates to a method for refurbishing an electrolysis cell for alkaline water electrolysis or chloralkali electrolysis, wherein at the start of the method the electrolysis cell is in a closed starting state with an elastic current distributor being in a compressed state, holding a cathode in planar contact with one side of a sheet-like separator, wherein a second, opposite second side of the sheet-like separator is supported by a rigid anode, and wherein the method comprises the steps of opening the electrolysis cell, while releasing the compression of the elastic current distributor, interposing a first flexible anode between the rigid anode and the separator, and closing the electrolysis cell, while compressing the elastic current distributor. The invention further relates to an electrolysis cell obtainable by the above method.

The invention relates to a current divider (31) comprising: - metallised holes (105, 106) forming a first branch (32) of the current divider and a second branch (33) of the current divider through which the target current flows; - wherein the first branch comprises first metallised holes (105a) extending between a first surface (107) of a first conductive layer and a first surface (109) of a second conductive layer, and second metallised holes (105b) extending between a second surface (108) of the first conductive layer and the first surface of the second conductive layer, wherein the metallised holes (105) of the first branch comprise pairs of adjacent metallised holes, and wherein each pair comprises a first metallised hole (105a) and a second metallised hole (105b).

A semiconductor device includes: a first input terminal configured to be connected to an external voltage; a second input terminal configured to be connected to the external voltage via an external discrete element; a first output terminal configured to be connected to an input node of a first external light emitting element; a second output terminal configured to be connected to an input node of a second external light emitting element; a current driver configured to provide a current to the first output terminal and the second output terminal, and a current distributor configured to control a ratio between a first current flowing from the first input terminal to the current driver and a second current flowing from the second input terminal to the current driver.

An intelligent contactor is provided which comprises a contactor body, and the contactor body is provided with a first conductive piece and a second conductive piece partially protruding out of the contactor body. A current splitter for measuring a current flowing through the first conductive piece and the second conductive piece is arranged inside the contactor body; an electromagnetic system for controlling one end of the current splitter and a circuit board for controlling the electromagnetic system. The other end of the current splitter is electrically connected to the second conductive piece. A partition plate is vertically and fixedly connected inside the contactor body, and the partition plate is used to partition the interior of the contactor body into a first accommodation chamber and a second accommodating chamber to address the problem of inability of a contactor in the prior arts to perform power cutoff for an over-current case.

Amplifiers incorporating correction or compensation control circuits are described. An example compensated amplifier circuit includes an amplifier circuit and a variable impedance compensation circuit. The variable impedance compensation circuit includes a variable current source, a current divider network, and a variable impedance transistor in one example. The variable impedance transistor includes a field effect transistor in one example, with drain and source terminals coupled between two nodes in the amplifier. The current divider network includes resistors coupled in parallel between an output of the variable current source and terminals of the variable impedance transistor. The compensation circuit can achieve a reduced standard deviation of gain among different amplifiers, even with process-induced, voltage, and temperature variability.

The application relates to the technical field of soil electro-osmotic dewatering, and particularly discloses a power-on method and a power-on device for large-scale soil electro-osmotic dewatering, the device comprising a power supply, a plurality of current distributors and a plurality of electrode groups, and the method comprising the following steps: device preparation; single-round power-on: starting voltage is applied to each electrode group through the current distributor, and the current of each group is detected; according to the size of the detected current of each group, the current of the group is controlled to be turned on or turned off or the size of the voltage of the group is adjusted through the current distributor; step-by-step voltage increase and multi-round power-on. According to the application, the on-off of the current and the voltage adjustment are controlled according to the change of the current with time in the electro-osmosis process, the electro-osmosis is kept to be carried out under suitable voltage conditions, the electro-osmosis efficiency is improved, the waste of electric energy is reduced, the energy consumption is lowered, the to-be-processed site is divided into a plurality of regions for separate control, the regional difference caused by the non-uniformity of the soil body is overcome, and the electro-osmosis of each region can be carried out under suitable voltage conditions.

An electrosurgical generator for generating a high-frequency AC voltage for an electrosurgical instrument, having a high-voltage inverter that generates and outputs a high-frequency AC voltage. A filter having a parallel capacitor is on an output line. A measuring sensor circuit having a current divider, which has a capacitive coupling to a series-connected shunt as bypass with respect to the parallel capacitor, and having a voltage detection circuit connected to the shunt. The shunt has a considerably lower impedance than the capacitive coupling. This gives rise to a proportional ratio between the current flowing through the parallel capacitor on the output line of the electrosurgical generator and the current through the shunt. This current is converted into a voltage, which is detected. The current at the output of the inverter is determined quickly and accurately thanks to the proportional relationship. This may be used for feedback and improved monitoring and regulation.

The application relates to the field of soil desalination, and particularly discloses a power-on method and a power-on device for soil desalination. The device comprises a power supply, a plurality of current distributors and a plurality of electrode groups. The method comprises the following steps: device preparation; single round power-on: according to the size of the detection current of each group, the distance between the positive and negative electrodes of power-on is adjusted; multiple rounds of power-on: the initial power-on positive and negative electrode spacing of the next round of power-on is smaller than that of the previous round of power-on. According to the change of the current with time in the electric desalination process, the distance between the electrodes is adjusted to realize the adjustment of the current, the electric desalination process is kept under suitable current conditions at all times, the desalination efficiency is improved, the desalination time is shortened, the waste of electric energy is reduced, and the energy consumption is reduced. Compared with the mode of adjusting the voltage by using a variable voltage power supply, the power-on method provided by the application adopts a constant voltage direct current power supply, and a power supply with continuously adjustable voltage is not needed, so that the cost of the power supply is reduced.

The invention provides a current divider electroplating method which is suitable for a current divider formed by welding a manganese-copper plate body and red copper plate bodies on the two sides, and aims to form a silver or nickel coating on the surface of red copper and ensure that the manganese-copper plate body is free of plating layer residues at the same time. The method comprises two technical schemes: 1, a pre-shielding electroplating method: after ultrasonic cleaning and acid pickling activation pretreatment, wrapping and shielding a manganese-copper area by adopting a high-temperature-resistant insulating tape or a strippable coating, then electroplating, and finally removing a shielding object; and the other method is a polishing method after integral electroplating, specifically, after the shunt is integrally electroplated, a plating layer in a manganese-copper area is directionally removed by utilizing numerical control grinding machine equipment, a red copper plating layer is reserved, and surface finishing is carried out. According to the two methods, the coating area is accurately controlled, so that the manganese-copper resistance characteristic is prevented from being influenced by the coating. The method is high in process compatibility, is suitable for high-efficiency production of the shunt in the field of current measurement, and has the advantages of low cost and high precision.

This utility model discloses a high-current, high-heat-dissipation current distributor, comprising several interconnected lower housings and several upper housings respectively mounted on top of the lower housings. Both the lower and upper housings have internal cavities, and their surfaces are arrayed with several heat dissipation holes. A copper busbar is located inside each cavity, with one end connected to a busbar. The copper busbar has several detachable pins, and several screws are riveted to it, each screw being threaded with a nut. This utility model effectively improves the heat dissipation of the copper busbar, allowing for a larger current flow. Furthermore, because the copper busbar and pins are separate structures, they can be processed individually, reducing manufacturing difficulty. If a pin is damaged, only the pin needs to be replaced, rather than the entire copper busbar, reducing maintenance costs and time.

The invention discloses a multiple self-gear-shifting current sensor, and relates to the technical field of sensors, the multiple self-gear-shifting current sensor comprises a shunt, a single-chip microcomputer, a Hall sensor and a magnetic induction sensor, the shunt is connected with an isolation voltage amplifier, and the isolation voltage amplifier is used for realizing high-low voltage isolation and voltage amplification of collected voltage; and the isolation voltage amplifier is connected with the operational amplifier. The reliability is improved through redundancy design, a user can select three channels for simultaneous detection according to own needs, the common cause failure problem of the same detection principle is avoided, and the detection safety and reliability are improved. The precision is improved through the self-gear-shifting design, the current divider is high in medium and small current measurement precision, the Hall sensor is high in medium current measurement precision, the magnetic induction is high in large current measurement precision, the single-chip microcomputer selects proper voltage channels according to different current measurement ranges, corresponding channel voltage values are output through the analog switch, the advantages of three different detection principles are complementary, and the detection precision is improved. The detection precision is improved.