151results about "End cell switching arrangements" patented technology

This application discloses a power battery system and its control method. The system includes: a first battery pack, a second battery pack, a first electrical appliance, a second electrical appliance, and a one-way switch. The first battery pack and the second battery pack are connected in series. A first terminal of the first battery pack is connected to a first terminal of the first electrical appliance. A one-way switch is connected between a second terminal of the first electrical appliance and a first terminal of the second electrical appliance. The series connection point of the first battery pack and the second battery pack is connected to a first connection point, which is the connection point between the one-way switch and the second electrical appliance. A second terminal of the second battery pack is connected to a second terminal of the second electrical appliance, and a second terminal of the second battery pack is also connected to a second terminal of the first electrical appliance. This achieves power redundancy and uninterrupted power supply in the event of circuit failure.

A propulsion system (20) for an aircraft (1000) includes a battery (64), an electrical distribution system (66), a ground-based charger, and a battery management system (68). The battery includes a plurality of battery strings (72) each including a plurality of battery cells (76). The electrical distribution system includes a battery string switch assembly (98) operable to electrically interconnect each of the plurality of battery strings together in parallel. The ground-based charger includes a charger controller (132) including a simple electronic hardware (SEH) system. The battery management system includes a battery management system (BMS) controller (108) connected in signal communication with the SEH system. The BMS controller is configured to determine a battery charging profile specific to the battery and charge the battery by controlling the ground-based charger, through the SEH system, to supply electrical power to the electrical distribution system at a set voltage and a set current defined by the battery charging profile.

A propulsion system (20) for an aircraft (1000) includes a battery (64), an electrical distribution system (66), a first control channel (110, 114), and a second control channel (112, 116). The battery (64) includes a plurality of battery strings (72). The electrical distribution system (66) includes at least one string contactor (132, 142) for each of the plurality of battery strings (72). The at least one string contactor (132, 142) includes a first gate (138, 148) connected to the first control channel (110, 114) and a second gate (140, 150) connected to the second control channel (112, 116). The at least one string contactor (132, 142) is operable to a closed position with a first control signal present at the first gate (138, 148) and a second control signal present at the second gate (140, 150). The at least one string contactor (132, 142) is operable to an open position with one or both of the first control signal absent at the first gate (138, 148) or the second control signal absent at the second gate (140, 150).

The invention discloses a super-endurance multifunctional display device, system and application. The system comprises an image acquisition module, a weight data acquisition module, a processing module, a display module and a power supply module. The processing module calculates health index parameters based on the body image data and the weight data, calls an AI model to construct a 3D human body model, and generates reminding information when indexes are abnormal; meanwhile, responding to a scene selection instruction, recommending virtual clothes and ornaments from the electronic wardrobe, and displaying a fitting effect in a virtual scene; and multi-user interaction is supported, and other user terminals can be accessed for synchronous display and real-time discussion. The power supply module adopts at least two independently detachable battery units and an automatic switching circuit, monitors the electric quantity and automatically switches. According to the invention, precise health management reminding, immersive fitting experience, social interaction promotion and super-long battery life are realized.

The application discloses an electronic device and a charging method. The electronic device comprises a USB interface, a fast charging chip, a power management chip and a main chip. The fast charging chip comprises a DP module and a DM module. The power management chip comprises a DP input module, a DM input module, a DP output module and a DM output module. The USB interface is connected with the fast charging chip and the power management chip. The DP output module and the DM output module are connected with the main chip. When the power management chip detects that the port type is DCP, the DP input module and the DM input module are switched to a high impedance state, and the DP module and the DM module of the fast charging chip are switched to a low impedance state. When the power management chip detects that the port type is SDP / CDP, the DP input module and the DM input module are connected with the DP output module and the DM output module. Through the electronic device, the compatibility of fast charging and data transmission can be realized while reducing the cost.

The application discloses a kind of base layer emergency vehicle-mounted double power supply integration roof lighting device, belong to emergency equipment and new energy technology field.The device includes roof base module, double energy power supply system, energy storage control system, lifting lighting system and green plant ecosystem.The application is powered by solar photovoltaic unit and vehicle generator power supply unit double way, combined with intelligent double energy switching circuit and lithium iron phosphate battery group, realize long time stable power supply.Ingenious green plant ecosystem is integrated in photovoltaic panel gap and lighting mechanism periphery, and its heat insulation vegetation layer is cooled by physics, significantly improve the working efficiency and life of energy storage control system and photovoltaic unit in high temperature environment.Lifting lighting system has floodlight and flash double mode, and can be remotely controlled.The application solves the problems of short endurance, easy to run out of power, high temperature influence and single function in the prior art, has the advantages of energy saving, light weight, quick installation, ecological and beautiful, especially suitable for grass-roots emergency rescue, command, patrol and other service scenes.

This utility model discloses a power supply abnormality alarm device, comprising: a power supply module for outputting stable 5V and 12V voltages; a charging detection module configured to connect to an external power source and charge a lithium battery, switching to lithium battery power supply when the external power supply is abnormal; a main control unit configured to trigger alarm actions based on voltage status; an audible and visual alarm module indicating power supply status through sound signals and light color changes; a wireless communication module transmitting power outage alarm information including location information to a designated terminal via wireless transmission when power supply is abnormal; and a testing and maintenance module including test pads connected to each operating voltage and status indicator LEDs for voltage visualization monitoring and maintenance, and also including a reserved interface module. This utility model belongs to the field of power supply alarm technology, specifically providing a solution to the problems of delayed fault response, low troubleshooting efficiency, and insufficient scalability in existing technologies.

The application belongs to the technical field of charging isolation, and is especially an intelligent double-battery isolation controller based on a motor vehicle. An internal power monitor can monitor battery capacity in real time. When the battery power is insufficient, the control end automatically starts the actuator inside the insulating cover. The actuating shaft drives the rotating seat and the outer battery clamping plate to rotate, realizing the switching of the main battery and the auxiliary battery, thereby ensuring sufficient power supply for the starter. The device can accurately control the actuating structure, so that the originally vertically arranged main battery and auxiliary battery are in a horizontal state. In a low-temperature environment, the two sets of battery clamping plates of the device complete double power supply for the main and auxiliary batteries, thereby ensuring sufficient power supply for the starter. The polishing sheet inside the battery clamping plate can always adhere to the surface of the fine grinding block and complete the synchronous opening and closing effect in the rotating state, ensuring that the battery clamping plate can firmly clamp the main and auxiliary batteries of different sizes, thereby effectively preventing missed clamping.

A system including a plurality of electrochemical cells, charge switching circuitry, and discharge switching circuitry. The charge switching circuitry and the discharge switching circuitry may be controlled to substantially isolate charging and discharging of the plurality of cells.

The utility model provides a household energy storage system, comprising an inversion device comprising a housing, and a DC / DC converter and a DC / AC converter arranged in the housing; the at least one first battery pack and the at least one second battery pack are detachably mounted on the shell respectively, the first battery pack is a low-nominal-voltage battery pack, and the second battery pack is a high-nominal-voltage battery pack; the solar charging interface is configured on the inversion device and is suitable for being connected with a solar cell panel so as to store photovoltaic power to the first battery pack and / or the second battery pack through the DC / DC converter; wherein the DC / AC converter is configured to be suitable for receiving direct-current power from the first battery pack and / or the second battery pack and outputting alternating-current power, and the alternating-current power is used by a household load. According to the technical scheme, the household energy storage system which is highly flexible and adapts to multiple scenes is provided.

An object of the present application is to provide a power supply system capable of achieving stabilization and / or redundancy of power supply voltages of a plurality of regions at low cost. A power supply system (1) includes a main battery (MB) for supplying electric power and a sub battery (SB) independent of the main battery (MB) and supplying electric power. The power supply system (1) further includes switching boxes (SW1 to SW4) in first to fourth regions (A1 to A4) as a plurality of power supply regions configured to be supplied with electric power from the main battery (MB) and the sub battery (SB), the switching boxes (SW1 to SW4) switching on / off states of electric power supplied from the main battery (MB) and the sub battery (SB) to the first to fourth regions (A1 to A4). Furthermore, the power supply system (1) includes a control section (6) for switching control of on / off states of the switching boxes (SW1 to SW4).

A discrete battery module configured for energy transfer in a power system together with a plurality of other battery modules. Each module one or more battery cells, and a primary structure The primary structure includes a primary flux guide component, and a primary winding associated with the primary flux guide component, a switching circuit coupled to the battery cell and the primary winding and configured to generate an alternating current output; and a primary controller configured to operate the switching circuit. The battery module is adapted to removably engage with a secondary module, in use, such that the engagement causes alignment with a secondary structure of the secondary module. The secondary structure has a plurality of secondary flux guide components, one secondary winding associated with the plurality of the secondary flux guide components; such that the alignment causes the primary and secondary flux guide components to be arranged in complementary sets with a predetermined geometrical alignment for magnetic coupling. Each set produces a current transformer with a defined coupling factor that supports the energy transfer operation characteristics of the system.

The present disclosure relates to a vehicle-mounted power supply control method and device, a vehicle and related equipment, and relates to the technical field of electric power. The vehicle-mounted power supply comprises: a first battery pack connected with a load through a first switch; and a second battery pack connected with the load through a second switch. The control method comprises: in response to receiving a fault signal of a fault battery pack, identifying a connection mode of the first battery pack and the second battery pack; in response to the first battery pack and the second battery pack being in a series mode, controlling the first switch and the second switch to be turned off, so as to disconnect the connection between the battery pack and the load; controlling a switch assembly to be in a parallel mode, so as to make the first battery pack and the second battery pack be in a parallel mode; controlling a target switch to be turned on, the target switch being a switch connected with a target battery pack, the target battery pack being another one of the first battery pack and the second battery pack except the fault battery pack; and using the target battery pack to supply power to the load, so as to improve the power supply reliability and safety of the vehicle-mounted power supply.

The application relates to an intelligent deployment energy storage converter, which comprises a battery pack and a bidirectional converter module connected through a DC bus, a protection circuit and a control circuit, a DC output end of the battery pack is connected with a DC input end of the bidirectional converter module, an AC output port of the bidirectional converter module is connected with a power supply bus and then connected with a load circuit, the power supply bus is further connected with a main power supply, the battery pack and the bidirectional converter module form a bidirectional conversion power path; a DC output end of the protection circuit is connected with a DC input end of the bidirectional converter module through the DC bus, the protection circuit further has a DC input end and a DC output end; the control circuit is connected with the main power supply, the control circuit is connected with the protection circuit, the battery pack and the bidirectional converter module through a control bus to form a control communication path. The application constructs an AC-DC-AC power supply structure with seamless switching of multiple power supplies, and realizes seamless conversion of controlled switching.

The present invention relates to a method for operating a battery pack (10) having a plurality of battery cells (2) connected in series, a plurality of operable switches (4, 6), and a management system (30), wherein the switches (4, 6) are used to activate and deactivate the battery cells (2) during charging or discharging operation of the battery pack (10), and wherein the management system (30) is used to monitor the battery cells (2) and to operate the switches (4, 6). The invention also relates to a battery pack (10) configured to perform the method according to the invention.

The present disclosure relates to a battery charging system and a battery charging method, and the battery charging system is connected to a respective positive electrode battery terminal and negative electrode battery terminal of each battery of a plurality of batteries including a first battery and a second battery, and includes a charger configured to supply power, a bypass configured to rotate about a central shaft and configured to provide a power route that connects at least one of the first and second batteries to a respective positive electrode charger terminal and negative electrode charger terminal of the charger, and a processor configured to monitor a respective end voltage between the respective positive electrode battery terminal and negative electrode battery terminal of each battery of the first and second batteries and control a rotation direction and a rotation angle of the bypass.

The utility model discloses a long-time recording law enforcement recorder with a high-capacity battery, which comprises a law enforcement recorder main body, camera modules are rotatably arranged on two sides of the law enforcement recorder main body, and the camera modules are used for shooting; the power supply module is arranged in the battery cavity in the back surface of the law enforcement recorder main body, and the power supply module is used for supplying power to the law enforcement recorder main body; the power supply module is also provided with a standby battery, and the power is supplied to the law enforcement recorder through the standby battery when the power supply module is short of power. Rapid connection between the power supply module and the main body is realized through the connection slot and the connection insertion block, so that the battery is convenient to disassemble and replace; the design of the standby groove enables the standby battery to be flexibly mounted and dismounted and is convenient to use.

The invention provides a power supply system and a DC-DC battery, the power supply system comprises a straight-through battery and a DC-DC battery, the DC-DC battery comprises a battery core pack and a DC-DC conversion circuit, and the straight-through battery and the DC-DC battery are both used for supplying power to a load through a bus. Under the condition that the voltage value of the bus is smaller than a preset working voltage value, when the voltage value of the direct current output by the direct-through battery is larger than the voltage value of the direct current output by the DC-DC battery, the direct-through battery is used for supplying power to the load; and when the voltage value of the direct current output by the straight-through battery is smaller than that of the direct current output by the DC-DC battery, the DC-DC battery is used for supplying power to the load. And the DC-DC conversion circuit is used for converting the voltage output by the battery core pack, so that the direct-through battery and the DC-DC battery alternately supply power to the load for multiple times. Normal power utilization of the load when the power grid is abnormal can be ensured, so that the power utilization reliability of the load when the power grid is abnormal can be improved.

An electrical power system includes a battery system that includes multiple battery modules, and an electrical distribution network. The battery system further includes, for each battery module of the battery system, a respective module interface device having a switching circuit that is operable to connect and disconnect that battery module with respect to the electrical distribution network independent of other battery modules of the battery system. The electrical power system further includes a control system operatively coupled to each module interface device. The control system is configured to command the module interface devices of a first subset of battery modules to connect the first subset of battery modules to the electrical distribution network, and to command the module interface devices of a second subset of battery modules to disconnect the battery modules of the second subset from electrical distribution network.

This application discloses a battery main control box, a charge / discharge circuit, and electrical equipment. The battery main control box includes two first electrode lines and one second electrode line, with a switch connected between the two first electrode lines, the two first electrode lines being for connection to two electrical loads and two batteries, respectively, and the second electrode line being for connection to the two electrical loads and the two batteries, respectively. The battery main control box of the embodiment of this application includes two first electrode lines and one second electrode line, with a switch connected between the two first electrode lines, and by controlling the opening and closing of the switch, the circuit structure in which the battery is located is changed, thereby flexibly changing the circuit structure to realize more functions.

The invention discloses a ship energy system and method based on resistance power generation and battery pack alternating power supply, and relates to the technical field of water vehicle power and energy supply, in particular to a ship energy system and method based on resistance power generation and battery pack alternating power supply. The system comprises at least one set of hydrodynamic power generation unit, at least two groups of battery packs, an inverter and a control clutch switch. The power generation unit drives a power generator to generate power through a rotating disc and blades arranged outside the ship body by means of friction resistance of water to the blades during sailing. After the generated electric energy is converted by an inverter, a clutch switch is controlled to charge a battery pack in a standby state, and meanwhile, another battery pack supplies power to the aircraft; when the electric quantity of the power supply battery is about to be used up, the fully-charged battery pack is switched to continue working, and the original battery pack is switched to be charged, so that circulating charging and power supply of the battery pack are realized. According to the system, the paddles can be pushed to continuously supplement electric energy by means of water flow or stormy waves when the ship is static, and the self-sustaining performance and cruising ability of energy are improved.

The invention discloses AR glasses, and relates to the technical field of glasses, and the AR glasses comprise a glasses frame, and a first glasses leg assembly and a second glasses leg assembly which are respectively connected to two ends of the glasses frame; a built-in battery and a battery management module are arranged in a cavity defined by the first glasses leg assembly, and the built-in battery is electrically connected to the battery management module; a battery module is arranged in a cavity defined by the second glasses leg assembly and is electrically connected to the battery management module; the battery management module is used for controlling the built-in battery to enter a discharging state when it is detected that the battery module is in a non-discharging state, and providing a power supply for operation of the AR glasses; and the battery management module is also used for controlling the battery module to enter a discharging state when detecting that the battery module is in a dischargeable state, providing a power supply for the operation of the AR glasses and / or providing a charging power supply for the built-in battery, so that the endurance time of the AR glasses is prolonged.

The utility model provides a cluster patrol flight device power distribution and supply management circuit, which comprises an initiating explosive device activation loop of a patrol flight device, the initiating explosive device activation loop is composed of an initiating explosive device battery, a switch switching module, a dual-control switch holding circuit and a time sequence power distribution module, and the dual-control switch holding circuit is triggered by the time sequence power distribution module to be switched on and off; a power-on and power-off control power supply loop of the patrol flight device is formed by the main battery and the control holding switch circuit, and the power-on and power-off control power supply loop and a loop where a ground power source and a generator are located form a combined circuit which is output to a power utilization end. According to the power distribution and supply management circuit for the cluster patrol aircraft, through cooperative arrangement of the modules, the power distribution and supply management circuit has the advantages of being good in reliability, short in response time and high in power supply switching speed, can meet the requirement for millisecond-level rapid switching under the emergency situation, and effectively avoids the risk that the system is out of control.

The application relates to a fiber laser optical module protection device, which comprises a power supply protection unit, a first input end of the power supply protection unit being connected with a first power supply unit, a second input end of the power supply protection unit being connected with a second power supply unit, and an output end of the power supply protection unit being electrically connected with a control module and an interface module respectively, and the power supply protection unit is used for providing reverse connection and / or missing connection protection to the control module and the interface module according to power supply conditions of the first power supply unit and the second unit; the control module is electrically connected with the interface module, is used for interacting with external devices through the interface module, and the interface module is used for connecting the external devices. The fiber laser optical module protection device provided by the application adds the power supply protection unit, uses a polarity protection subunit in the power supply protection unit to ensure safe output of a power supply module in the case that polarity reverse connection occurs in single power supply, and uses a power supply protection subunit to realize safe switching of the power supply module under double power supply / single power supply, so that production safety and efficiency of the optical module are ensured.

The application relates to the technical field of ventilation equipment, in particular to a mobile energy storage emergency ventilator based on temperature regulation and a working method thereof, which comprises an equipment main body, a supply air cavity, a shunt cavity and a temperature regulation pipe arranged in the equipment main body, the supply air cavity comprises a supply air assembly and a transmission mechanism, and the two ends of the supply air cavity are in an open structure; one end of the shunt cavity is in an open structure, the other end is sealed and provided with a flow guide cylinder which is communicated with the supply air cavity, a booster assembly is arranged in the flow guide cylinder, and the transmission mechanism transmits the driving force of the supply air assembly to the booster assembly; the temperature regulation pipe comprises a base pipe, an air inlet pipe is arranged between one end of the base pipe and the converging end of the flow guide cylinder, hot air pipes and cold air pipes are arranged at the two ends of the base pipe respectively, and the air discharged from the hot air pipes and the cold air pipes can independently enter the supply air cavity.

The invention relates to the technical field of robots, and provides a control method of a mechanical arm, the mechanical arm and a power source switching device of the mechanical arm, and the control method comprises the steps that when the electric quantity of an energy storage module is larger than or equal to first electric quantity, a power source switching circuit is controlled to enable the energy storage module to supply power to an end effector; when the electric quantity of the energy storage module is smaller than the first electric quantity and the mechanical arm is in a first working mode, the power switching circuit is controlled to enable the energy storage module to supply power to the end effector, and the effector interface outputs electric energy to the end effector; and when the electric quantity of the energy storage module is smaller than the first electric quantity and the mechanical arm is in the second working mode, the power supply switching circuit is controlled to enable the energy storage module to stop supplying power to the end executor, and the executor interface outputs electric energy to the end executor. According to the invention, the energy storage module can preferentially supply power when the electric quantity is sufficient, and supply power to the end effector in cooperation with the effector interface when the electric quantity is insufficient, so that the mechanical arm can stably operate under various load conditions.

A power supply control device, a convertor and a power supply system are provided. The power supply system includes a convertor and a power supply control device, wherein the power supply control device includes a first power supply interface configured to connect to a mains power interface to obtain electric power, and a second power supply interface configured to supply power to a power tool battery pack; the convertor includes a first conversion interface and a second conversion interface, the first conversion interface is connected to an electric vehicle or an electric vehicle charging pile, the second conversion interface is connected to the first power supply interface, so that the power supply control device connects to the convertor to connect to the electric vehicle or the electric vehicle charging pile to obtain electric power, the convertor can also communicate with the power supply control device and the electric vehicle or the electric vehicle charging pile to achieve power matching of the power supply system based on the communication. The power supply solution of the embodiments of the disclosure can solve the power supply problem of the power tool system to a certain extent and expand the application scenarios of power tools.

The invention discloses a battery pack multi-mode discharge on-line capacity checking controller and method, the controller comprises a processor, and a memory and an interface module connected with the processor, the processor is configured to form a battery pair by using a battery to be tested and an emptied battery, control a controllable switch array, and control the on-line capacity checking of the battery pack. The two batteries in the battery pair are connected to the two ends of the bidirectional Buck / Boost converter through two common buses, the converter enables the battery to be tested to discharge to cut-off voltage in a voltage reduction mode, a direct connection mode and a voltage boosting mode in sequence, and the discharge capacity of the battery to be tested is calculated through accumulation. The direct current bus voltage is monitored in the on-line capacity checking process of the battery pack, and a full-capacity standby battery is used for replacing a capacity-deficient battery to be connected into the battery pack in series to form a whole battery string to supply power to the direct current bus during fault power loss. According to the method, the switch array is controlled, the capacity requirements of battery pack discharge during online capacity checking and alternating current power loss are both considered, and the loss of the system to the direct current power supply capacity in the capacity checking process is avoided through topology automatic switching, so that the reliability of direct current backup power supply during online capacity checking is improved.

The application relates to the field of battery management, and discloses a dual-battery power management method and system for a dual-rotor unmanned aerial vehicle. The method comprises the following steps: acquiring a first output voltage of a first voltage stabilizing unit in the process of flying the unmanned aerial vehicle by using a first battery, and determining a voltage drop amplitude of the first output voltage relative to a standard output voltage; when the voltage drop amplitude is greater than or equal to a preset voltage drop amplitude, acquiring a first power consumption rate; when the power consumption rate is greater than or equal to a preset consumption rate, quickly switching the power supply source of the unmanned aerial vehicle from the first battery to a second battery; when the power consumption rate is less than the preset consumption rate, gradually switching the power supply source of the unmanned aerial vehicle from the first battery to the second battery. The output power of the first voltage stabilizing unit is uniformly reduced, and the output power of the second voltage stabilizing unit is uniformly increased in a first time period. The application can efficiently manage the power of the dual batteries of the unmanned aerial vehicle.