146 results about "Electric capacity" patented technology

The present application relates to the field of electrical engineering, in particular to a kind of full DC power supply system suitable for pulse load characteristics.The system includes control unit, chassis engine, generator, rectifier unit, energy storage unit and distribution unit;Wherein, rectifier unit uses uncontrolled rectification+BUCK type step-down topology, and constant voltage control strategy, specifically: double-loop control mode of outer ring voltage control+inner ring current control, output DC 600V DC bus is stabilized at set voltage value, realizes the constant voltage control of output voltage.Solve the energy supply problem of equipment single vehicle operation, and the problem that traditional electric car system constant current strategy and equipment pulse load are difficult to match.Using the power supply structure of rectifier unit+energy storage unit (capacitor), remove lithium battery in traditional electric drive system, avoid the safety problem of lithium battery, and the system safety is high.

A solar power supply circuit and an environmental detection device are provided, the circuit includes a solar panel, an energy storage capacitor, a first low voltage detection chip, a voltage stabilization unit, and a processor chip. A positive terminal and a negative terminal of the solar panel are respectively electrically connected to two ends of the energy storage capacitor. The positive terminal of the solar panel is electrically connected to an input terminal of the first low voltage detection chip, an output terminal of the first low voltage detection chip is electrically connected to an input terminal of the voltage stabilization unit, an output terminal of the voltage stabilization unit is electrically connected to a positive electrode of a power supply of the processor chip. A problem of taking a longer time to enter a normal operation when the existing solar panel is low power can be solved.

This invention relates to the field of power management technology, and particularly to an intelligent integrated power system and control method based on multi-source collaboration, including a main power module, a backup power cluster, an energy management unit, a voltage adaptation module, a status monitoring unit, a communication module, and a load interface. Compared to existing technologies that typically use a single type of battery pack as a backup power source, which suffers from slow response speed and difficulty in withstanding instantaneous high-power surges, this invention employs a heterogeneous energy storage system composed of parallel lithium battery packs and supercapacitor modules as the backup power cluster, and uses a bidirectional DC / DC converter for intelligent control. This solution fully leverages the different advantages of lithium batteries (high energy density) and supercapacitors (high power density and rapid response), enabling the system to provide both long-term backup power support and instantaneous high-power discharge, thereby significantly improving the dynamic response capability, power support reliability, and overall service life of the backup power source.

The utility model discloses a magnetic portable brushless motor drilling and tapping machine, it includes: main body, lifting assembly, magnetic attraction base. The main body includes shell group, rotation part, linkage assembly, brushless motor, control module, one department, and the accommodation department has the accommodation groove, electric capacity groove, and the accommodation department sets up the downside of the corresponding brushless motor of shell group with the part with electric capacity groove, and control module is electrically connected with brushless motor, and control module is located in the accommodation groove, and control module includes at least electric capacity, and electric capacity is at least partially located in the electric capacity groove, and thus can effectively reduce the overall volume of the utility model.

The utility model relates to low voltage difference linear voltage stabilizing circuit field, the utility model discloses a low -cost low voltage difference linear voltage stabilizing protection circuit, include: VCC input, VCC output, field effect transistor Q1, triode Q7, diode D2, voltage stabilizing diode D3, electric capacity C2, resistance R3, R4, R5, R6, VCC input and VCC output are respectively connected with the source electrode and the drain electrode of field effect transistor Q1, and R3 is connected between the grid of field effect transistor Q1 and the collector of triode Q7, and the positive pole and the negative pole of D3 are connected with ground and the base of triode Q7 respectively, and R5 is connected between the emitter of triode Q7 and VCC output, and R6 is connected between the emitter of triode Q7 and ground, and the negative pole of diode D2 is connected with the base of triode Q7, and R4 is connected between the drain of field effect transistor Q1 and the positive pole of diode D2, and one end of electric capacity C2 is connected between resistance R6 and ground, and the other end of electric capacity C2 is connected with VCC output. The utility model has the advantages of low cost and strong anti -interference ability.

This invention discloses a low-temperature resistant, high-power aqueous organic-bromine battery, belonging to the field of electrochemical energy storage technology. The invention uses a low-freezing-point bromine-based salt solution with added bromine solid complexing agent as the electrolyte, and a pseudocapacitive organic material as the negative electrode, which possesses ionic universality and can bind metal ions in the solution during the reaction. The positive electrode uses a carbon material as a substrate, where a bromine redox reaction occurs. Simultaneously, the complexing agent can complex bromine in solid form onto the carbon surface, ensuring good stability at both room temperature and low temperatures. The aqueous organic-bromine battery of this invention exhibits high energy density and ultra-high power density at room temperature, maintains high energy density even at low temperatures, and is inexpensive, showing promising application prospects.

The utility model relates to the technical field of circuit breaker especially, a pole switch with image monitoring device, including high voltage capacitor electricity -taking power supply, camera device and 10KV high voltage circuit breaker, high voltage capacitor electricity -taking power supply and camera device are integrated in 10KV high voltage circuit breaker, and high voltage capacitor electricity -taking power supply obtains electric energy from high voltage line through 10KV high voltage circuit breaker, and high voltage capacitor electricity -taking power supply converts high voltage alternating current into low voltage direct current, and high voltage capacitor electricity -taking power supply powers camera device, and camera device is used for the monitoring of line, ground environment and forest fire prevention, and 10KV high voltage circuit breaker cuts off the line when detecting the fault. The utility model realizes real -time visual monitoring to high voltage line and its surrounding environment, can stably operate in the remote area without municipal power supply, solves the problem that traditional image acquisition equipment is difficult to deploy due to the lack of reliable power supply.

The application discloses a kind of mine robot hybrid power supply systems, it is characterized in that, including: hybrid energy storage module: as energy source, for storing and preliminary regulating energy, support continuous low-power output and high-power peak discharge;The application is directly realized the complementary effect of energy density and power density by the parallel configuration of hybrid energy storage module, power battery pack provides high-capacity continuous output, super capacitor group supplements instantaneous high power, so as to ensure long endurance in conventional driving, and provide ≥120A peak current in high-power working conditions such as climbing or obstacle crossing.This direct effect is further amplified as the threshold switching of intelligent energy management unit, avoids the output limitation and capacity sacrifice problem caused by the increase of existing single storage battery internal resistance, finally forms the advantage that 35 ° climbing pass rate is improved to 100%, completely solves the contradiction of existing endurance short and power shortage, improves rescue mobility and range.

This invention discloses a system for reducing the ripple current of a DC bus capacitor, comprising a DC bus capacitor C1, an inverter circuit, a current sampling circuit, an energy storage inductor L1, and a control circuit. This invention also discloses a method for reducing the ripple current of a DC bus capacitor. In this invention, an energy storage inductor L1 is placed between the positive terminal of the battery and the positive terminal of the DC bus capacitor C1. The control circuit controls the energy storage inductor L1 to charge or discharge to the motor according to the direction and magnitude of the current flowing through the DC bus capacitor C1, thereby reducing the charging or discharging current of the DC bus capacitor C1, and consequently reducing the ripple current of the DC bus capacitor C1. This reduces the temperature rise of the DC bus capacitor during operation, thereby extending the service life of the DC bus capacitor C1. This invention also features a simple structure, low cost, and high reliability.

The application relates to the technical field of battery packs, and provides a battery cell support which comprises two clamping parts and an adjusting part connected between the two clamping parts; the adjusting part can adjust the distance between the two clamping parts, so that the two clamping parts are clamped on a battery cell together; a plurality of battery cell supports can be connected together in sequence, and adjacent clamping parts between adjacent battery cell supports are detachably connected, so that the battery cells clamped by the battery cell supports are arranged at intervals along a preset direction. The battery cell support can adapt to the assembly requirements of battery packs with different electric capacities, meanwhile, the adaptability of the battery cell support to battery cells with different specifications is enhanced, and the universality of the battery cell support is improved.

The utility model discloses a kind of electric energy storage type intelligent efficient belt pressure devices, belong to belt pressure device technical field, comprising: electric energy storage system, electric power system, belt pressure source system and PLC data acquisition system, the electric energy storage system includes external power supply interface and energy storage battery pack, the external power supply interface is electrically connected with energy storage battery pack, the lateral wall of the energy storage battery pack is fixedly installed with intelligent allocation control display, rectifier is fixedly installed on the intelligent allocation control display, the electric connection between the intelligent allocation control display, rectifier and output circuit. The electric energy storage of utility model device is large, can carry out intelligent allocation compensation;With the mode of double-electric independent power supply and hybrid power supply, meet the emergency demand under special circumstances, reduce the influence on the operation of device;Adopt common DC AC variable frequency transmission and control technology, and capacitance performance is more stable.

In order to accumulate more electrostatic capacity by using soil particles, this charging device comprises: a conduction portion in which an electrically conductive substance is mixed into soil particles that contain ions; a plurality of positive electrodes that are provided to the conduction portion; a plurality of negative electrodes that are provided to the conduction portion; and a separator that is provided between the plurality of positive electrodes and the plurality of negative electrodes. The electrically conductive substance and the plurality of positive electrodes are connected, and the electrically conductive substance and the plurality of negative electrodes are connected. When a voltage is applied between the plurality of positive electrodes and the plurality of negative electrodes, negative ions are guided to the plurality of positive electrodes, and positive ions are guided to the plurality of negative electrodes.

The utility model relates to a kind of titanium capacitor batteries, including shell, electric core, positive pole guide needle, negative pole guide needle, electric core is installed in shell interior, positive pole guide needle, negative pole guide needle is same direction and protrudes from the top of electric core, the electric core is wound by positive pole sheet, diaphragm, negative pole sheet, the positive pole sheet is composed of positive pole aluminium foil layer and positive pole coating layer, positive pole coating layer is coated in the surface of positive pole aluminium foil layer, the negative pole sheet of the utility model titanium capacitor battery is composed of negative pole aluminium foil layer and lithium titanate coating layer, lithium titanate coating layer is coated in the surface of negative pole aluminium foil layer, using lithium titanate coating has the characteristics of high safety, high stability, wide temperature range, long life and green environmental protection, titanium capacitor battery can be applicable to energy storage power supply, instrument and apparatus, UPS power supply and other fields, can replace super farad capacitor and lithium battery module in special industrial field.

The application discloses a multiplexed switch capacitor equalization circuit for a single battery string and a control method thereof, and relates to the field of electrochemical energy storage. The equalization circuit is composed of a switch array and a capacitor network. The battery string is divided into a plurality of battery modules. The switch array is arranged in correspondence with the battery modules. Each battery module is connected to the multiplexed capacitor network through the corresponding switch array. All the switch arrays are controlled by pulse phase shift. When the switch arrays are alternately driven, the multiplexed capacitor network can transfer the energy of high-voltage battery modules in the battery string to low-voltage battery modules, or transfer the energy of high-voltage battery cells in the battery modules to low-voltage battery cells. Through the continuous charging and discharging of the capacitor network, the voltage of the entire battery string can be finally balanced. The application completes the voltage balancing of the single battery string through the multiplexed capacitor network, and has important significance for the miniaturization and compact design of the single battery string equalization circuit.

The utility model discloses a split type air conditioner outdoor unit electric appliance box, including the box body of top opening and cover the cover plate of opening, install frequency converter mounting panel on the bottom plate in the box body, install chip and electric capacity on frequency converter mounting panel, the cable in the box body passes through the wire hole and extends outside the box, still include radiating fan and radiating fin, and radiating fan is installed in the box body, and the through -hole is seted up on the box body bottom plate, and a part of radiating fin is located in the through -hole and is connected with frequency converter mounting panel, and another part extends outside the box, and the heat conduction copper column is connected between chip and frequency converter mounting panel, and the environment in the box body is isolated with the outside world. This electric appliance box can prevent dust and water, can reduce the temperature of electric capacity in the box body, reduces the chip temperature in the box body.

The application discloses a control method and device of a vehicle-mounted charger, a vehicle-mounted charging system and a vehicle, and relates to the technical field of vehicle-mounted charging. The control method comprises the following steps: through controlling the action of the secondary side power switch tube of the isolation type DC / DC circuit in the vehicle-mounted charger, the pre-charging process of the DC bus capacitor is realized by using the electric energy of the power battery to charge the DC bus capacitor; the soft start of the isolation type DC / DC circuit is realized by gradually increasing the duty cycle at the start time, the oscillation of the resonance current is avoided, and the smoothness of the charging voltage output to the DC bus capacitor is improved; meanwhile, the loss in the isolation type DC / DC circuit is reduced by reducing the switching frequency after the duty cycle is stable, so that the gain of the output charging voltage is improved, and the fast charging of the DC bus capacitor is realized. The whole pre-charging process is realized by reusing the isolation type DC / DC circuit in the vehicle-mounted charger, no additional hardware is needed, and the application cost of the vehicle-mounted charger is effectively saved.

This utility model discloses a single-cell lithium battery protection circuit, including a lithium battery charging circuit, a lithium battery protection control circuit, a battery detection circuit, a programming port circuit, a button indicator light interface circuit, a charging detection circuit, a DC brushed motor circuit, and a gyroscope circuit. The lithium battery charging circuit includes connector CN1, diode D2, capacitor C4, resistor R2, resistor R3, capacitor C5, and integrated circuit U2. The lithium battery protection control circuit includes integrated circuit U3, resistor R4, capacitor C6, connector CN3, connector CN2, and resistor R5. This utility model's single-cell lithium battery protection circuit, by setting up a charging detection circuit and a battery detection circuit, evaluates the lifespan of a single-cell lithium battery in real time based on the voltage, current, and internal resistance parameters under different conditions, and provides warnings through the button indicator light interface circuit, facilitating timely maintenance of the single-cell lithium battery and extending its lifespan.

The utility model discloses an external device of iOS terminal belongs to communication technical field for solving the technical problem that iOS terminal user is difficult to obtain the signal strength information of the Wi-Fi connected through the iOS terminal stably and quickly, influences the use experience of user. External device includes: shell, bluetooth module, wi-fi module, MCU main control chip, interface circuit, power conversion circuit, bluetooth module is connected with wi-fi module through MCU main control chip, bluetooth module is connected with power conversion circuit through seventeenth electric capacity, fifth resistance, power conversion circuit one end is grounded through ninth electric capacity, and power conversion circuit is connected with a plurality of parallel electric capacity through fourth resistance, power conversion circuit other end is connected with power through second resistance, and external device carries out bluetooth connection with iOS terminal through bluetooth module, and external device carries out wired connection with iOS terminal through interface circuit and MCU main control chip.

The embodiment of the present application relates to the technical field of battery thermal management, and discloses a charging heating circuit, a charging heating method, a power battery assembly and a vehicle, in the charging heating circuit, a charging port is used for coupling a charging pile, a first end of a first branch is coupled to a first end of the charging port, a second end of the first branch is used for coupling a power battery and a driving circuit, a first end of a second branch is coupled to the first end of the charging port, and a second end of the second branch is used for coupling the power battery and the driving circuit, a control circuit requests a first voltage input by the charging pile, and charges a charging port capacitor to a second voltage, when no current flowing from the first end of the charging port capacitor to the first end of the charging port is detected, the first branch is turned on, when the current flowing from the first end of the charging port capacitor to the first end of the charging port is detected, the second branch is turned on, and the second voltage is greater than the first voltage.

This application discloses a method and system for energy recovery from a DC-powered high-voltage line tensioning machine. It includes: constructing a hybrid energy storage system comprising a battery pack and a supercapacitor, and multimodal sensing hardware; processing images and vibration information collected from the line-laying trolley using a spatiotemporal fusion deep prediction model to predict mechanical impact characteristics in advance; using a deep reinforcement learning algorithm for active, operation-level energy allocation and scheduling of the hybrid energy storage; and finally, employing dual-timescale control to isolate electrical and mechanical disturbances. This application can actively decouple and eliminate bus voltage oscillations and tension control misalignment caused by sudden load changes such as the traction plate passing over the trolley, reducing the risk of line drop and improving the efficiency of regenerative energy recovery during line-laying construction.

This invention relates to a power supply system for an electricity meter and its rechargeable battery protection circuit, belonging to the field of power protection technology. The invention integrates an anti-backflow unit within the step-down conversion module to prevent current from the rechargeable battery from flowing back into the power input module, thereby reducing capacitor ineffective losses. It also integrates a current-limiting unit and a first unidirectional conduction unit within the charging control module. The current-limiting unit restricts the charging current flowing to the rechargeable battery, while the first unidirectional conduction unit ensures that the charging current flows unidirectionally to the rechargeable battery. The current-limiting unit controls the charging current through its own resistance characteristics, avoiding damage to the battery from abnormal current (too high / too low). The first unidirectional conduction unit ensures that the charging current flows unidirectionally to the battery, preventing reverse current from flowing into the circuit during battery discharge, achieving a balance between "efficient charging + battery protection," thereby improving circuit reliability and battery lifespan.

This disclosure relates to a battery pre-power supply circuit, control method, and intelligent electrical appliance. The battery pre-power supply circuit includes a battery power supply, a pre-power supply output module including a pre-charging circuit, a boost converter circuit, and a primary capacitor. Both the pre-charging circuit and the boost converter circuit are connected to the battery power supply, and both are connected to the primary capacitor. The DC power supply output module includes a trickle charging circuit, a charging switch, and a secondary capacitor. Both the trickle charging circuit and the charging switch are connected to the primary capacitor, and both are connected to the secondary capacitor. A control module has its power supply terminal connected to the primary capacitor, and its input terminal connected to the boost converter circuit to obtain the battery power supply voltage. The control module is also connected to the charging switch to control its on / off state. This disclosure avoids inrush current, ensures that the battery can supply power normally even in a low-charge state, improves battery power utilization, and reduces user costs.

The utility model discloses an ESD protection circuit, including first branch, second branch and third branch, first branch includes first bleed transistor and second bleed transistor in series, second branch and first bleed transistor are parallel, second branch includes first electric capacity and first resistance, and first electric capacity and first resistance electric connection to the grid of first bleed transistor, third branch and first branch are parallel, third branch includes the voltage drop unit and filter unit in series, and the voltage drop unit and filter unit electric connection to the grid of second bleed transistor, the ESD protection circuit of the utility model can respond to ESD event on one hand, filter out the influence of radio frequency interference signal on the other hand, reduce the small leakage caused thereby.

The utility model relates to comparator circuit protection technical field discloses the load short circuit protection circuit based on comparator, include: current sampling resistance RS2, first end connects public end, second end ground connection, comparator U13 the opposite phase input end through resistance R106 and electric capacity C67 shunt network connection RS2's public end, the positive phase input end through resistance R107 connects TL431 reference source U14's cathode, TL431 reference source U14's reference pole passes through resistance R111 ground connection, drive chip EG27324. In the utility model, through comparator U13 the direct triggering of B light coupling U10 action, force MCU to shut off drive chip EG27324, and after receiving hardware fault signal, through software filtering algorithm secondary verification load state, simultaneously, three -level hardware filter and software dynamic threshold value compensation, realize the cooperative protection mechanism of hardware fast response and software accurate fault tolerance.

The invention discloses a lithium-free high-voltage direct-output sodium ion capacitor energy storage device and a preparation method thereof, and belongs to the technical field of electrochemical energy storage devices. The energy storage device adopts a completely lithium-free system, a 50-380-layer internal series connection structure is formed through alternate lamination of double-side heteropole composite electrodes and diaphragms, direct output of high voltage of 1200 V or above is directly achieved, and direct power grid direct hanging can be achieved. The preparation method perfectly reuses the whole set of core processes of S01 to S03, and does not need to add new equipment. The energy density of the whole pack can reach 35-40 Wh / kg, the cost of raw materials is reduced by 40% or above compared with that of a lithium ion capacitor, dependence on lithium resources is thoroughly eliminated, the cycle life is longer than or equal to 120 thousand times, and the requirements of scenes such as power grid area energy storage, new energy grid connection and industrial standby power supplies are perfectly met.

The utility model discloses a multifunctional electronic atomization device, including host computer and and host computer electricity connection's atomizer, one lens is equipped respectively in host computer both sides, is equipped with the power supply system for giving atomizer power supply in host computer, and power supply system has two corresponding display screen and start button with every lens respectively, and is equipped with elastic member between every lens and every start button. The utility model discloses electronic atomization device, compared with the existing electronic atomization device, is through the palm heart extrusion every lens mode when hand -held, makes start button to start power supply system to give atomizer and every display screen power supply, to carry out smoking while observing the host computer electric capacity, power, voltage and smoking frequency that every display screen shows through every lens, not only can save the cost of design button on the host computer and assembly labor cost, and the elasticity of elastic member in the palm heart extrusion process can make every lens telescopic, thereby can play the effect of relieving stress to the user.

This invention relates to a charging circuit and method based on a battery pack. The charging circuit is deployed in a vehicle and includes a battery pack, an inductor module, a second capacitor module, a second relay, a first switch module, and a second switch module. The first terminal of the inductor module is connected to both the positive terminal of the charging pile and the positive terminal of the battery pack. The second terminal of the inductor module is connected to both the first switch module and the second switch module. The second switch module is connected in series with the second capacitor module, and the first switch module is connected in parallel with both the second switch module and the second capacitor module. The connection terminals of the second capacitor module and the first switch module are connected to the negative terminal of the battery pack and the negative terminal of the charging pile, respectively. The gates of both the first and second switch modules are connected to a vehicle controller, which controls the opening and closing of the first and second switch modules. Pulse heating and charging of the battery pack are achieved through the inductor module and the second capacitor module.

The utility model relates to the technical field of electric capacity, specifically to a bolt electric capacity automatic sealing device, the bolt electric capacity automatic sealing device of the present application is through being equipped with machine table on the frame, installs the loading mechanism for loading bolt electric capacity on the machine table, is connected the moving mechanism on the loading mechanism, is installed with the embrace and hold mechanism for fixing bolt electric capacity above the moving mechanism, is equipped with sealing mechanism above the embrace and hold mechanism, and the sealing mechanism includes the fixed ring of matching with bolt electric capacity cover plate, is equipped with driving part on the fixed ring, moves and rotates through the driving part drive fixed ring, to drive bolt electric capacity cover plate to carry out sealing to bolt electric capacity opening, realizes the convenient precision sealing of bolt electric capacity. And the device can be positioned freely, makes the stress even when the inner ring aluminum shell is bent and rolled, prolongs the service life of equipment, thereby guarantees that sealing operation procedure is not interrupted, greatly improves the sealing precision of hollow aluminum electric capacity and the appearance quality of product.