48results about How to "Meet power needs" patented technology

The invention provides a display device and a negative voltage adjusting circuit, and belongs to the technical field of display driving. The display device includes a gate drive circuit and a negative voltage adjustment circuit. The gate driving circuit comprises a first transistor and a second transistor. The first transistor is used for accessing a first negative voltage signal. The second transistor is used for accessing a second negative voltage signal. The negative voltage adjusting circuit comprises a clamping sub-circuit and a controllable semiconductor device. The clamping sub-circuit is used for accessing a first negative voltage signal and establishing a clamping voltage according to the first negative voltage signal. And the controllable semiconductor device is connected with the clamping sub-circuit and the gate driving circuit, and is used for outputting a second negative voltage signal to the gate driving circuit according to the first negative voltage signal and the clamping voltage. Therefore, other negative voltage signals required by the gate drive circuit can be obtained by converting the first negative voltage signal, so that the negative voltage power supply requirement of the gate drive circuit can be met by only outputting one path of first negative voltage signal by the power management chip, and the flexibility of circuit configuration can be improved.

The invention relates to the technical field of plateau field safeguard equipment, in particular to a plateau type multifunctional integrated service safeguard cabin, and solves the problems that existing safeguard equipment is difficult in energy supply in a plateau environment, poor in environmental adaptability, single in function and incapable of meeting comprehensive requirements of personnel life, equipment power supply, communication support and the like in scenes such as emergency rescue and field operation. A plateau type multi-energy integrated service guarantee cabin comprises a guarantee cabin body, a heightened base and an energy, intelligent management, environment regulation and control, water purification, unmanned aerial vehicle service and value-added service extension system. The cabin body is made of high-density polyurethane heat insulation plates, a PLC control module, an inverter and an energy system are arranged to achieve light and wind storage and power supply, and all the systems are linked with a PLC as the core. According to the invention, the PLC control module is used as a core for linkage work of all the systems, energy self-sufficiency, intelligent management and control, environment adaptation and multiple services in the plateau environment are realized, logistics guarantee of continuous field operation of multiple persons can be met, and the safety and convenience of field operation are improved.

The application discloses a power distribution network power supply scheme optimization management method and system based on dynamic sensing, and belongs to the technical field of power supply management. The system comprises a dynamic sensing module, a power distribution analysis module, a power supply optimization module and an execution management module; the dynamic sensing module is used for collecting GIS maps and power consumption data, and operation parameters and environmental parameters of all power supply objects; a three-dimensional scene is built and dynamically mapped; the power distribution analysis module divides and identifies domains according to the relative positions of the power supply objects in the three-dimensional scene, constructs three-dimensional air flow fields for the respective domains and predicts future wind field data, and fits power relationship formulas for the power supply objects; the power supply optimization module fits power consumption curves through the power consumption data, constructs power generation reference curves in combination with the future wind field data and the power relationship formulas; different power generation strategies are established and schemes are randomly built, the stability indexes of the schemes are calculated to set the power supply scheme; and the execution management module adjusts according to the power supply scheme and records the operation parameters and the environmental parameters.

This application discloses a rodless pump-based surface power equipment for underground drainage and gas extraction, belonging to the technical field of underground drainage and gas extraction equipment. It includes: a conveying device for pumping power fluid; a drainage control valve, including a valve adjusting component and a valve body with a power fluid inlet, a power fluid outlet, a power fluid exchange port, and a power fluid return port. The power fluid inlet is connected to the conveying device, the power fluid outlet is connected to a pipeline injected into the formation, the power fluid exchange port is used to export a portion of the power fluid and allow it to return, and performs work on another portion of the power fluid exported through the power fluid outlet during the export process; the power fluid return port is used to return the power fluid to its source; and a driving device for actuating the valve adjusting component. When the driving device actuates the valve adjusting component, the valve adjusting component can connect the power fluid inlet to the power fluid outlet and the power fluid exchange port, or only connect the power fluid inlet to the power fluid exchange port, or connect the power fluid inlet to the power fluid outlet, the power fluid exchange port, and the power fluid return port.

The utility model provides a graphitization production system. The graphitization production system comprises a base, a first graphitization furnace, a second graphitization furnace, a first copper-aluminum bar, a second copper-aluminum bar and a third copper-aluminum bar, the plurality of first graphitization furnaces and the plurality of second graphitization furnaces are respectively arranged on the two sides of the X direction of the foundation; the first copper-aluminum bar, the second copper-aluminum bar and the third copper-aluminum bar are arranged on the two sides of the foundation in the Y direction respectively, and the multiple first graphitization furnaces and the multiple second graphitization furnaces are connected to the first copper-aluminum bar in parallel; the plurality of first graphitization furnaces are respectively connected in parallel to the second copper-aluminum bar through a first switch; the plurality of second graphitization furnaces are respectively connected in parallel to the third copper-aluminum bar through a second switch; the second copper-aluminum bar and the third copper-aluminum bar are connected through a third switch; the second copper aluminum bar is connected with a first transformer, and the third copper aluminum bar is connected with a second transformer. The capacity of the transformer can be fully utilized, and the equipment investment cost is reduced.

The utility model relates to a battery pop-up device based on a lateral battery replacement new energy vehicle, and belongs to the technical field of new energy vehicle batteries. Comprising a pop-up mechanism, the pop-up mechanism comprises a gas generator, the new energy vehicle is provided with a battery bin, one end of a bin frame of the battery bin is provided with a bin inlet and outlet, the other end of the bin frame is provided with a bin end cover, and the gas generator is arranged on the bin end cover. When the battery is inserted in place in the battery bin, a closed space can be formed between the inner end of the battery and the battery bin, and gas generated by combustion of a gas generating agent in the gas generator can act on the inner end of the battery to push the battery out of the battery bin. The gas generator is simple in structure and convenient to operate, when the battery is abnormal, the gas generator can instantly generate a large amount of gas, the battery can obtain enough kinetic energy, the battery is separated from the new energy vehicle, the risk that the battery explodes or burns on the new energy vehicle is eliminated, and therefore the personal and property safety of passengers is guaranteed.

This application discloses an engine control method, device, electronic equipment, and vessel, relating to the field of engines. When a risk of capsizing is determined based on the hull's tilt parameters in various directions, the engine can be promptly shut down to prevent cylinder scoring and bearing damage due to insufficient oil lubrication. If no capsizing risk is determined, the engine speed adjustment coefficient is adjusted according to the degree of tilt in each direction, and the engine speed is adjusted accordingly to meet the power requirements of the hull under tilt conditions. This allows for different degrees of engine speed adjustment based on the degree and direction of tilt when the hull's tilt is within certain safety limits, resulting in more stable and reliable power performance during operation, better meeting the vessel's power needs.

This invention relates to the field of charging equipment technology, and in particular to an embedded system and charging pile based on LoRa communication and multi-voltage domain power supply. By integrating a power supply module, a control module, an interface communication module, and a LoRa wireless communication module, the system provides a multi-voltage domain power supply range through functional modules, enabling the control module, interface communication module, and LoRa wireless communication module to operate and supply power. This avoids high-voltage damage to various components caused by the high voltage domain of the external power supply to the charging pile, and meets the power supply requirements of different components in multiple voltage domains. At the same time, by integrating the interface communication module and the LoRa wireless communication module, multiple communication methods with external devices are realized, improving the communication efficiency and interactivity when the charging pile charges various devices, and avoiding the technical problem of the narrow power supply voltage range of charging piles to various devices in the prior art.

The embodiment of the invention provides a control method of a hybrid vehicle, a vehicle control unit and the hybrid vehicle, relates to the technical field of vehicles, and can reasonably distribute the driving power and the heating power of the vehicle under the condition that the performance of a power battery is degraded, so that the battery performance is effectively recovered, and meanwhile, the heating efficiency is improved. And the basic power of the vehicle can be maintained. The control method of the hybrid vehicle comprises the following steps: in response to determining that the hybrid vehicle is in an engine driving working condition and detecting that a power battery meets a preset performance attenuation condition, isolating the power battery; determining the target generation power of the generator and the target working temperature of the power battery; determining the heating power of the power battery according to the actual temperature of the power battery and the target working temperature; determining the whole vehicle driving power based on the estimated driver demand power, the heating power and the target power generation power; and the vehicle is driven to run based on the whole vehicle driving power, and the power battery is heated based on the heating power.

The utility model discloses a rectification voltage stabilizing circuit based on 555 timer and reference voltage chip relates to power supply circuit technical field, the circuit in the utility model, provide stable reference voltage through reference voltage chip, according to the duty cycle of the output pulse of comparison result adjustment, can realize the high precision voltage stabilizing output, satisfy the power supply demand of high precision electronic equipment, utilize common 555 timer and reference voltage chip, compared with the dedicated voltage stabilizing chip, the cost is reduced obviously, has higher cost performance, is suitable for large -scale production and application, through the output signal in control 555 timer module, can conveniently adjust output voltage, to adapt to the demand of different load and application scene to voltage, the PWM circuit of 555 timer composition can realize higher power conversion efficiency, reduce power loss, improve the overall performance of circuit.

The application is suitable for the technical field of a converter, and provides a control method and device of a converter, the converter and a storage medium. The control method of the converter comprises the following steps: acquiring an actual output power of the converter; determining a target power of each power module according to the actual output power, the number of the power modules and preset output power parameters of the power modules; and controlling each power module to output a corresponding target power. The control method of the converter provided in the application embodiment can reduce the loss of the converter, thereby improving the output efficiency of the converter.

The utility model belongs to switch technical field relates to a full -power or half -power variable power switch, include: alternating current input terminal A, mechanical switch SW1, diode D1 and alternating current output terminal 1. The anode of diode D1 is connected with the pin x of mechanical switch SW1, and the cathode of diode D1 is connected with the pin y of mechanical switch SW1 and the pin 1 of alternating current output terminal respectively. In addition to having the original function of traditional mechanical switch, when switching, the power parameter of the appliance equipment can be automatically switched and changed, directly coping with the different power requirements of the equipment appliance.

The utility model relates to an intelligent gas meter dual power supply switching power supply circuit, which adopts dual power supply design, automatically switches to the power supply with higher voltage by utilizing the voltage drop characteristic of diode, and does not need external control unit. At the same time, super capacitor is added as backup power supply to provide emergency power supply when dual power supply is powered off, ensuring data storage and valve operation. The power output module also has power supply control function, and realizes intermittent power supply or constant power supply through MOS tube, meeting the low power consumption requirement. In addition, the voltage conversion module works cooperatively to meet the high and low voltage load requirement, reduce power consumption, and prolong battery life. This design significantly improves the stability and reliability of the intelligent gas meter power supply system, providing users with more durable and stable use experience.

The utility model discloses a double -sided heat dissipation's car headlamp driver, including base, the inside of base is equipped with drive circuit board, the upper and lower surface of drive circuit board is equipped with a plurality of scattered arrangement's power device respectively, the upper portion of base is connected with upper cover, and the upper cover is equipped with the recess or the boss corresponding with power device respectively on base and, and the surface of power device and recess or boss between coating has the heat -conducting glue. The utility model discloses power device scattered arrangement on the upper and lower surface of drive circuit board, effectively promoted the efficiency of heat dissipation, makes the driver can satisfy higher power demand. The utility model discloses base and the upper cover are equipped with the recess or the boss corresponding with power device respectively on, and the surface of power device and recess or boss between coating has the heat -conducting glue, can fast transfer heat to base and the upper cover, guarantees the heat dissipation effect.

The invention discloses an engine control method and device, equipment and a storage medium, and belongs to the technical field of vehicle control. The method comprises the following steps: acquiring a first characteristic signal; acquiring a first phase angle under the condition that the first characteristic signal does not meet a first specified condition; acquiring a second phase angle under the condition that the first characteristic signal meets a first specified condition; and controlling the engine according to the steady-state phase angle or the dynamic phase angle, wherein the first phase angle is different from the second phase angle. Through differential phase control based on the driving intention, the engine can be kept in the optimal operation state under different working conditions.

The utility model discloses a trailer device with a power taking function, and relates to the field of automobile accessories. The trailer device with the electricity taking function comprises a cross beam, a trailer hook, a power supply adding port, an OBC vehicle-mounted charger and a power supply output element, the cross beam is connected with an automobile, the trailer hook is fixedly installed on the cross beam, the power supply adding port is fixedly installed on the cross beam and connected with an automobile vehicle-mounted power supply, the OBC vehicle-mounted charger is fixedly installed on the cross beam, and the power supply output element is connected with the OBC vehicle-mounted charger. And the power supply output element is fixedly arranged on the outer side of the trailer hook and is connected with the OBC vehicle-mounted charger. According to the trailer device with the electricity taking function, the functions of reliable traction and stable electricity taking in the trailer process are achieved by integrating mechanical connection and an electrical electricity taking system. The device not only ensures the safety and stability in the towing process, but also provides continuous and stable power supply support for the towed vehicle or external equipment.

The application mainly relates to the technical field of batteries. The application discloses a multi-liquid flow battery stack system and a control method thereof, and is used for controlling multiple battery stacks. The method comprises the following steps: detecting each battery stack to obtain health state information of each battery stack; determining the priority of each battery stack based on each health state information; screening multiple target battery stacks according to the required number of battery stacks of the load power consumption and the priority of each battery stack, and outputting electric energy by using the multiple target battery stacks; and adjusting the target battery stacks when the target battery stacks output electric energy, so that the target battery stacks are maintained in the best efficiency interval while meeting the output power demand. The application can regulate and control multiple liquid flow battery stacks, is beneficial to each battery stack to provide sufficient power output in the best efficiency condition, and thus improves the power supply efficiency of the whole battery system.

This invention provides a USB master-slave mode power hardware switching circuit for an industrial control board SOC, belonging to the field of embedded hardware circuit design technology. It includes: a first transistor, a second transistor, a third transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, and a USB connector. The power pin of the USB connector is connected to the emitter of the first transistor, its collector is connected to the OTG detection pin through the fourth resistor, the detection pin is grounded through the fifth resistor, its base is connected to the collector of the second transistor through the second resistor, and its base is connected to the identification pin through the first resistor. The base of the third transistor is connected to one end of the third resistor, and its other end is connected to the identification pin. The emitter of the third transistor is connected to the board's power supply, and its collector is connected to the power pin of the USB connector. This invention integrates multiple functions such as program download, communication with a host computer, and USB flash drive data reading and writing on a single USB interface.

The embodiment of the invention provides a chip structure, a chip stacking structure, a preparation method of the chip stacking structure and electronic equipment, relates to the technical field of semiconductors, and is used for reducing resistance-capacitance delay. The chip stacking structure comprises a first chip structure and a second chip structure which are stacked and electrically connected. The first chip structure comprises a first active layer, a first wiring layer and a second wiring layer which are stacked in sequence; the second wiring layer is arranged on the side, close to the second chip structure, of the first wiring layer. The first wiring layer comprises a first dielectric layer and a first metal wire located in the first dielectric layer, the second wiring layer comprises a second dielectric layer and a second metal wire located in the second dielectric layer, and the wire width of the second metal wire is larger than that of the first metal wire. The first chip structure further comprises a first signal line located on the second wiring layer, and the line width of the first signal line is larger than that of the first metal wiring. The second chip structure comprises a second active layer, a third wiring layer and a fourth wiring layer which are stacked in sequence.

The invention provides an electrical testing device for an energy storage container. The electrical testing device comprises a shell, a power supply unit, a communication docking unit and a testing unit, the power supply unit and the communication docking unit are arranged in the shell, the power supply unit is used for providing power supplies of various specifications for the to-be-tested electrical element, and the communication docking unit is used for realizing signal transmission between the to-be-tested electrical element and the test unit; and the test unit is detachably arranged on the shell, is electrically connected with the communication docking unit, and is used for carrying out communication read-write test and electrical performance detection on the to-be-tested electrical element. The power supply unit, the communication docking unit and the test unit are integrated in the integrated shell, so that on-site rapid test of various electrical elements in the energy storage container is realized.

The invention relates to the technical field of power systems, and discloses a hybrid power system and a vehicle. The hybrid power system comprises an engine suitable for driving an input shaft of the engine to rotate; the driving motor is suitable for driving the driving motor input shaft to rotate; the output shaft is suitable for being in transmission connection with an engine input shaft and / or a driving motor input shaft; the engine input gear is coaxially and fixedly connected with the engine input shaft; the generator is connected with a motor driving gear; and the idle gear is meshed between the motor driving gear and the engine input gear and is used for transmitting power. According to the hybrid power system provided by the invention, through introduction of the idle gear, the diameter of the motor driving gear can be reduced, so that the radial space occupation of the motor driving gear is reduced, the integrated layout of the motor and the transmission system in a compact engine compartment is facilitated, and the space utilization rate is improved.

This utility model relates to the field of power motor technology, specifically a dual-rotor motor, comprising a housing, a first motor, a second motor, a transmission module, and an output shaft. The housing includes an upper cover and a lower cover connected together. The first motor includes a first stator element, a first rotor element, and a first output element. The first stator element is disposed on the upper cover, and the first rotor element is disposed on the first output element. One end of the first output element is disposed on the upper cover, and the other end is connected to the transmission module. The second motor includes a second stator element, a second rotor element, and a second output element. The second stator element is disposed between the upper and lower covers, and the second rotor element is disposed on the second output element. The second output element is connected to the transmission module, and the output shaft is disposed on the transmission module. This utility model achieves the goals of multi-motor integration, compact space, strong power, and stable operation.

The utility model provides an alternating-current power distribution unit, which is assembled in a cabinet body of a cabinet and comprises an outer plug-in frame and an alternating-current power distribution module. The outer plug-in frame comprises a top cover, a bottom shell and a partition plate, the alternating-current power distribution module comprises a safety shell, a fuse, an input connecting part and a copper bar assembly, the fuse is installed in the safety shell through an insulating part, and the safety shell is further provided with an output connector used for being electrically connected with external equipment. The alternating-current power distribution unit provided by the utility model can effectively improve the space utilization rate in the outer plug-in frame, effectively improve the power supply efficiency of the alternating-current power distribution unit, and meet the power supply requirements of high-power-density equipment in a limited space; besides, the power supply efficiency of the AC power distribution module can be further improved while the safety of the AC power distribution module can be effectively guaranteed, and the space utilization rate in the safety shell and the safety of the AC power distribution module can be improved.

The application relates to a mobile dining car and a low-voltage power supply energy storage device of the mobile dining car, which comprises two groups of power supply modules, an energy storage module, two groups of energy conversion modules, an output module and a leakage protection module, each group of the power supply modules is connected with commercial power and a renewable energy board; the energy storage module is used for energy storage and provides a second power source; each group of the energy conversion modules is used for step-down providing the first power source provided by the power supply module to the power source for charging the energy storage module and step-up outputting the second power source provided by the energy storage module to a third power source; the leakage protection module is connected between each group of the energy conversion modules and the output module and is used for protecting the leakage of a load. The device replaces oil with renewable electricity as the power supply module to greatly reduce the use cost, uses the electric energy of the energy storage module to meet the long-time work demand, the maximum power reaches 10kW to meet the power of high-power electrical appliances; the leakage protection module is adopted to make the use more safe.

The utility model discloses fixed solar charging emergency lighting equipment which comprises an equipment body and a solar panel, a battery pack and a circuit board are arranged in the equipment body, and the equipment body is provided with a lighting device which is electrically connected with the battery pack and used for providing emergency lighting. The circuit board is provided with a charging interface for charging the battery pack, and the charging interface comprises a solar panel charging interface which is connected with the solar panel and is used for providing solar charging, and a TYPE-C charging interface which is used for providing quick charging. The device is provided with the solar panel charging interface and the TYPE-C charging interface, so that the device can still obtain electric power at any time in an emergency, the power supply guarantee capability of the device is greatly improved, meanwhile, multiple charging modes are adopted, the situation that when a single charging mode breaks down, the electric quantity of a battery pack is used up, and emergency lighting cannot be provided is avoided, and the service life of the device is prolonged. And the equipment can continuously provide emergency lighting under any emergency condition.

The utility model provides a power supply system. The power supply system comprises a cabinet, a power distribution unit, a rectification unit and a battery unit. The power distribution unit comprises an alternating current power distribution unit and a direct current power distribution unit, a copper bar assembly is also arranged in the cabinet, and a grounding unit is also arranged in the cabinet. An alternating current power distribution unit of a power distribution unit outputs alternating current to a rectification unit, the rectification unit converts the alternating current into direct current, the direct current is converged to a direct current power distribution power supply through a copper bar assembly, and the direct current power distribution unit transmits the direct current to IT equipment of an AI data center; moreover, after the alternating-current power distribution unit is powered off, the battery unit outputs direct current to the copper bar assembly, the copper bar assembly transmits the direct current to the direct-current power distribution power supply, and the direct-current power distribution unit transmits the direct current to IT equipment of the AI data center. Therefore, the alternating current input and the direct current input of the power supply system are supplied to IT equipment of the AI data center for power supply.

The invention relates to an in-situ lithiation method of a lithium ion battery with intrinsic lithium-free positive and negative electrodes, which comprises the following steps of: in the assembly process of the lithium ion battery, directly placing a lithium supplement agent on the surface of an electrode to be subjected to lithium supplement, and injecting lithiation liquid, so that the electrode to be subjected to lithium supplement and the lithium supplement agent are subjected to short-circuit reaction to realize in-situ lithiation and interface regulation and control. Compared with the prior art, the in-situ lithiation speed and the lithiation degree of the lithium ion battery with the positive electrode and the negative electrode not containing lithium are regulated and controlled, temperature rise in the in-situ lithiation process is inhibited, and the safety of the in-situ lithiation process is improved; and meanwhile, a compact interface film with high ionic conductivity is formed in the lithiation process by utilizing the film-forming additive, so that the composition and structure of the interface film of the negative electrode or the positive electrode or the positive and negative electrodes are regulated and controlled, and important practical value is achieved.

The embodiment of the utility model provides a power supply device which comprises a supporting assembly and a cable adjusting device, the supporting assembly comprises a top beam and a supporting beam connected with the top beam, the top beam extends in the first direction, the supporting beam extends in the second direction, and the first direction intersects with the second direction. The multi-direction extension design of the supporting assembly ensures the stability and the bearing capacity of the power supply device. The cable adjusting device is connected to the top beam, so that the power supply requirement of high-place operation can be met, meanwhile, the disorder of cables on the ground in the operation process is improved, and the risk that workers are stumbled and slip is reduced. The cable adjusting device is used for supplying power to the electric equipment, the cable adjusting device is arranged in a telescopic mode in the second direction, the length of the cable adjusting device can be adjusted according to actual needs, the power source is transmitted to the electric equipment, complexity and potential safety hazards caused by using multiple power strips are reduced, and the safety and efficiency of overall operation are improved.

The application discloses a power management circuit with a clamping function, and belongs to the technical field of power management, and aims to solve the problems of high cost of high-voltage devices and easy damage of passive clamping in existing circuits. The circuit contains a clamping module, a step-down conversion module, a step-up conversion module, an enable control module and a charging module. The clamping module is connected with an input voltage VIN and a system power supply end VSYS, and according to the relationship between the VIN and a preset voltage Vmax, the VSYS is clamped to the Vmax or is synchronously output with the VIN; the step-down conversion module reduces the VSYS to a low-voltage direct-current voltage OUTD; when the VIN is powered off, the step-up conversion module upgrades the energy of an energy storage element to the Vmax and inputs the Vmax to the VSYS; and the enable control module controls the start and stop of the circuit according to the state of the VIN; when the VIN is powered on, the charging module charges the energy storage element by using the OUTD. The circuit can greatly reduce the circuit cost, avoid overvoltage damage of downstream devices caused by excessively high input voltage, and be suitable for wide-range input voltage scenes.

The application provides a modular radio frequency receiving front end with fast power-on capability. The modular radio frequency receiving front end comprises a filtering limiting front end, a switch filtering amplification circuit, a power division circuit, a large dynamic SDLVA circuit and an SDLVA power supply circuit, and is connected with each functional module through an SMP joint to realize modular design, detects the performance of each circuit through multi-stage self-checking, increases the isolation degree between the SDLVA chip and the rear-stage operational amplifier circuit through an operational amplifier, and provides the power supply voltage of the ns level rising edge for the SDLVA detection module, so as to reduce the complexity of the radio frequency signal interconnection and the power supply control wiring of the multi-channel receiving front end, and has the characteristics of modular design, high sensitivity, high reliability, strong universality and the like.