295results about "End cell switching arrangements" patented technology

An electrical system with selectable output voltage is disclosed. An example system includes a first set of energy storage modules, a second set of energy storage modules, a choke connected to the first set of energy storage modules and the second set of energy storage modules, and a switch configured to switch between a first state and a second state. Upon switching the switch to the first state, the first set of energy storage modules are connected in parallel with the second set of energy storage modules to provide a first voltage to at least one output. Upon switching the switch to the second state, the first set of energy storage modules are connected in series with the second set of energy storage modules to provide a second voltage to the at least one output.

An electrical system with selectable output voltage is disclosed. An example system includes a first set of energy storage modules, a second set of energy storage modules, a choke connected to the first set of energy storage modules and the second set of energy storage modules, and a switch configured to switch between a first state and a second state. Upon switching the switch to the first state, the first set of energy storage modules are connected in parallel with the second set of energy storage modules to provide a first voltage to at least one output. Upon switching the switch to the second state, the first set of energy storage modules are connected in series with the second set of energy storage modules to provide a second voltage to the at least one output.

A battery assembly configured to be operable during charging or discharging to distribute a common current delivered to or from a common bus and a use of at least one analog battery module. Also disclosed is an analog battery module for distributing current between a plurality of battery strings. Each analog battery module is connectable in series with a respective battery string. The distribution of the current between the battery strings is at least partially given by the respective voltages of the analog battery modules.

A power tool is provided including a power supply interface receiving a removable battery pack, a brushless direct current (BLDC) motor including a rotor and a stator, and a multi-phase inverter bridge circuit. A controller is provided to output drive signals to the inverter bridge circuit to control flow of current from to the motor, where each drive signal is activated within each corresponding phase of the motor within a conduction band. The controller is configured to control a length of the conduction band at a variable value within a first torque range below a torque threshold and at a substantially constant value within a second torque range above the torque threshold. The torque threshold is greater than approximately 1 Newton-meters and the motor produces a maximum power output of at least approximately 1250 watts at the torque of approximately 1 Newton-meters.

The invention discloses a logging underground battery selection device, which belongs to the technical field of petroleum underground operation, and comprises a main framework, a battery selection module is arranged outside the main framework, and a rib frame is arranged on one side, far away from the battery selection module, of the outer part of the main framework. According to the invention, the dual-battery selection system, real-time monitoring, intelligent switching and balanced maintenance are adopted, so that the batteries can continuously and stably supply power in a complex and changeable underground environment, and the problems of unstable energy supply and limited cruising ability of a traditional single-battery power supply system are solved; according to the double-battery selection system, by optimizing battery combination and selection strategies, efficient utilization and backup of energy are achieved, the energy requirement of underground equipment under long-time and high-load operation is met, the operation efficiency is improved, the operation safety is enhanced, simultaneous selection and optimization of two sets of batteries are achieved, and the energy utilization rate of the underground equipment is increased. Therefore, the stability and reliability of underground operation are improved.

A new energy elevator belongs to the technical field of elevators, and includes an elevator control device and an elevator power supply system. The elevator power supply system includes a photovoltaic power supply device, a power switching circuit system, a mains power supply, a power supply output controller, a first storage battery, and a second storage battery; the power switching circuit system includes a first power switching switch, a second power switching switch, and a third power switching switch connected and controlled by the power supply output controller, and the connection end of the first power switching switch is connected to the photovoltaic power supply device, the first storage battery, and the second storage battery; the connection end of the second power switching switch is connected to the third power switching switch, the first storage battery, and the second storage battery; the connection end of the third power switching switch is connected to the elevator control device and the mains power supply. The elevator power supply system integrates photovoltaic power supply, dual battery energy storage, and intelligent switching technology, which not only improves the reliability and energy efficiency of the elevator power supply, but also reduces the dependence on the mains power supply, and can ensure the green and low-carbon operation of the elevator.

A battery swap trolley and a battery swap system. The battery swap trolley comprises a main body (1), a fixed frame (2), a movable frame (3) and a movable device (4), wherein the fixed frame (2) is fixed to the main body (1), and is configured for placement of a battery (5); the movable frame (3) is mounted to the movable device (4), is located above the fixed frame (2) and overlaps the fixed frame (2), and the movable frame (3) is configured for placement of the battery (5); during a swap process of the battery (5), the movable frame (3) can horizontally move at a first level above the fixed frame (2), and perform lifting motion between the first level and a second level of the fixed frame (2); and the movable device (4) is mounted to the main body (1), and is connected to the movable frame (3), and the movable device (4) is configured to drive the movable frame (3) to perform horizontal movement and lifting motion. The battery swap system comprises a transfer robot and the battery swap trolley, wherein the transfer robot comprises a battery compartment (6). When a battery (5) in the battery compartment (6) is swapped, the fixed frame (2) or the movable frame (3) of the battery swap trolley is aligned with the battery compartment (6). The battery swap trolley and the battery swap system can reduce the footprint of the battery swap trolley.

The invention discloses building construction measuring equipment, and belongs to the technical field of measurement, and the building construction measuring equipment comprises a connecting column, one end of the connecting column is connected with a first moving mechanism, the first moving mechanism is connected with a second moving mechanism, and the lower end of the second moving mechanism is connected with a laser level meter. The fixing plate is inclined, so that the rainfall can flow to the water inlet on the fixing plate, the rainfall can be collected and stored by the water inlet, and then the rainfall is sprayed out through the connecting column to clean the laser gradienter; the moving path of the laser level meter on the second moving mechanism can be controlled by controlling the rotating speed and the rotating direction of the worm, the whole device can be installed at an absolutely safe position, then the laser level meter is sent to a measuring position through moving, the laser level meter is safer to use, and the measuring range of the device can be increased.

The invention is suitable for the field of energy management, and discloses a double-battery power supply switching method, terminal equipment and a storage medium. The double-battery power supply switching method comprises the following steps: detecting a first electric quantity of a first main battery; if the first electric quantity is lower than the preset electric quantity threshold value, power is supplied through the standby battery; and if it is detected that the first main battery is replaced by the second main battery, supplying power through the second main battery, and stopping using the standby battery to supply power. Through the double-battery power supply switching method, when the electric quantity of the first main battery is lower than the preset electric quantity threshold value, the standby battery is automatically switched to supply power. According to the mechanism, the camera flashlight can be seamlessly switched to the standby power supply when the electric quantity of the main battery is insufficient, so that equipment shutdown caused by exhaustion of the electric quantity of the battery is effectively avoided, and the working continuity of the camera flashlight is improved.

The invention relates to the technical field of main and standby battery switching devices, and discloses a communication base station main and standby battery switching device which comprises a main battery, a standby battery and a zero-delay arc-free switcher connected with the main battery and the standby battery in parallel. Wherein the zero-delay arc-free switcher is internally provided with a mechanical action device for switching an input power supply channel so as to select to use the main battery or the standby battery to supply power, and the zero-delay arc-free switcher is also provided with a group of output electrodes; and a capacitor connecting part for switching is fixedly arranged in the zero-delay arc-free switcher. According to the invention, the capacitor connection part for switching is used as an uninterruptible power supply unit in the switching action process of the mechanical device, so that the power supply within the shortest three seconds can be provided, the stable switching connection of the mechanical device is ensured, and the low-delay power supply requirement can be effectively met.

A battery assembly and a control unit for aiming at outputting a target voltage during charging or discharging and a method, a battery assembly and a control unit for maintaining a target voltage of a battery assembly during charging or discharging are disclosed. The battery assembly (100) comprises a first battery module (110) configured to receive a first signal representing a first voltage to be output over the first battery module (110), wherein the first signal is configurable to represent a range of voltages capable of being output over the first battery module (110). Moreover, the battery assembly (100) comprises a plurality of second battery modules (160-180). Each second battery module (160, 170, 180) of the plurality of second battery modules (160-180) is configured to receive a respective second signal, representing a respective configuration, which indicates whether said each second battery module (160, 170, 180) is to be switched-on or bypassed.

The invention discloses an independent wind and light storage combined control system, which comprises a core control module, a wind power generation module, a photovoltaic power generation module, an energy storage module, an ADC (Analog to Digital Converter) acquisition module and a display module, the wind power generation module and the photovoltaic power generation module respectively adopt a wind power generator and a photovoltaic panel to convert wind and light resources into electric energy to be supplied to the energy storage module, so that the endurance of the device is realized; the energy storage module comprises a storage battery and a standby battery, the storage battery supplies power to the main control module and the load, two voltage thresholds are set for the storage battery, and when wind and light resources are too few and the electric quantity of the storage battery is within the set voltage threshold interval, the system can be automatically switched to the standby battery for endurance of the device and the load. The system is reasonable in design, stable in work, good in performance, fast in data detection, simple in calculation, stable in output and capable of being controlled in real time, the output of each power supply can be adjusted according to weather conditions and the state of the storage battery, and a standby power supply can be switched to be used by a load.

The invention relates to the field of battery management, and discloses a dual-battery electric quantity management method and system for a dual-rotor unmanned aerial vehicle, and the method comprises the steps: obtaining a first output voltage of a first voltage stabilization unit when the unmanned aerial vehicle flies by using a first battery, and determining a voltage drop range 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, rapidly switching the power supply of the unmanned aerial vehicle from the first battery to a second battery; and when the power consumption rate is smaller than the preset consumption rate, gradually switching the power supply of the unmanned aerial vehicle from the first battery to the second battery. In the first time period, 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. According to the invention, the electric quantity of the double batteries of the unmanned aerial vehicle can be efficiently managed.

The invention provides a multifunctional combined use method of a high-expansibility mobile power supply, relates to the technical field of mobile power supplies, and realizes modularization, multiple functions and high reliability of the power supply by constructing a combined system consisting of a main power supply module and a plurality of independent function expansion modules. The main power supply module comprises a physically reconfigurable energy storage array unit, an energy partition isolation management system, a multi-node energy routing core and a rotary encoder, and has a dynamic topology autonomous evolution capability and a fault self-healing mechanism. A multi-mode biological heuristic sensor fusion unit and a multi-stage phase change micro-cavity cooling structure are integrated in the expansion module, so that state data can be acquired in real time and thermal stability can be guaranteed. According to the invention, the adaptability, energy supply continuity and user interaction flexibility of the mobile power supply system in a complex environment are improved, and the mobile power supply system is suitable for application scenarios with high requirements on energy safety and reliability, such as field operation, military communication, disaster rescue and the like.

A method of manufacturing a battery pack including the creation of a support board for enabling conversion of the battery pack from providing a first voltage to providing a second voltage. The support board is created by injection molding about a precut set of power traces for coupling a converting element to a plurality of battery cells. The power traces couple the plurality of battery cells to a set of battery pack terminals. The support board may be mechanically coupled to a battery cell holder.

The utility model belongs to the technical field of energy storage and power utilization, and particularly discloses a power supply switching circuit for energy storage and power utilization. Comprising a commercial power grid inlet wire, a commercial power grid switch cabinet, a first transformer, a second transformer, a first power distribution cabinet, a second power distribution cabinet, switches QF1, QF2, QF3, QF4 and QF5, a first isolator, a first energy storage inverter, a first energy storage battery, a second isolator, a second energy storage inverter, a second energy storage battery and a connection relation thereof. According to the utility model, through the switch group in the power supply switching cabinet, power utilization switching can be carried out under different power utilization conditions, the electric energy utilization rate of the energy storage battery pack is fully improved, and the power supply reliability is ensured.

An electrical energy storage system has a plurality of primary energy storage units. Each primary energy storage unit has an inherent internal resistance. The system further includes one or more additional energy storage units. At least one additional energy storage unit further has a pseudo resistance. One or more controllers control the charging and discharging of each of the primary and additional energy storage units. Control of the charging and discharging of the, or each, additional energy storage units with the pseudo resistance is distinguished from the charging and discharging of each primary energy storage unit, and is distinguished from the charging and discharging of any additional energy storage unit that lacks a pseudo resistance.

The invention relates to the technical field of hot-line work robots, in particular to a hot-line work robot control topology based on multi-power-supply dynamic switching. The energy storage battery unit is used for supplying power to the hot-line work robot and carrying out electric quantity early warning; the control conversion unit monitors the electric quantity state of the energy storage battery and the multi-power-supply system in real time, controls switching of power supplies and carries out allocation of multi-power-supply input. The remote control unit receives state information of the energy storage battery monitoring unit and the control conversion unit in real time; and when the original power supply fails, the emergency unit executes a command of switching the power supply according to the signal sent by the remote control unit. Based on a real-time scheduling algorithm, cooperative control over multiple power supplies (diesel generator power supply / alternating current charging port power supply / 48V generator power supply) is achieved, the power supply switching time is smaller than or equal to 5 ms (90% higher than that in the prior art), and the power supply interruption rate is reduced to 0.2%.

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.

To provide a power supply switching circuit capable of maintaining the operation of a circuit without any malfunction.SOLUTION: A power supply switching circuit 101 is connected to a first power source 210 and a second power source 220, and is also connected to a first circuit 310 and a second circuit 320. The power supply switching circuit includes a first main path 1m, a second main path 2m, a first switching path 3, and a second switching path 4. The power supply switching circuit also includes a control circuit 20 that forms a power supply path by controlling each of the first main path, the second main path, the first switching path, and the second switching path to either a conductive state or a non-conductive state. When a malfunction occurs in one of the first and second circuits, the control circuit forms a power supply path that does not affect the operation of the other circuit.SELECTED DRAWING: Figure 1

A new energy elevator belongs to the technical field of elevators and comprises a new energy power supply system, a traction host, an elevator control device and a power generation device. A flywheel is connected to a rotating shaft of the traction main machine. The power generation device comprises a power generation base, a power generation sliding seat, a driving unit and a generator; the power generation sliding seat is slidably mounted on the power generation base in a guiding manner, and the driving unit is connected with and drives the power generation sliding seat to move and is connected and controlled by the power generation controller; a power generation main shaft is mounted on the power generation sliding seat; a pressing wheel is fixed on the power generation main shaft; the generator is installed on the power generation base, a rotating shaft of the generator is in transmission connection with the power generation main shaft through a deformable flexible transmission mechanism, and the electric energy output end of the generator is electrically connected with the new energy power supply system through a rectifying and voltage stabilizing device. The power generator can be independently installed on the power generation base and does not need to synchronously move along with the power generation sliding base, so that the power generator can stably provide electric energy for a new energy power supply system, and the energy-saving effect of the elevator is guaranteed.

The present invention relates to the field of intelligent energy storage systems, and is used to solve the problem of increased maintenance costs caused by insufficient utilization of battery cells in energy storage systems. Specifically, the present invention relates to an intelligent energy storage system suitable for a non-reflux bidirectional switching power supply, comprising a load monitoring unit, a power switching control unit, a battery usage statistics unit, a battery status analysis unit, and a battery life monitoring unit. In the present invention, by balancing the relationship between the number of charge and discharge times and the usage time of battery cells in the energy storage system, the number of charge and discharge times and the usage time of the battery cells can reach the warranty period at the same time as much as possible, avoiding the situation where the warranty period and the number of charge and discharge times are too far from the warranty upper limit, thereby improving the economy of maintenance or replacement. By separately monitoring two groups of battery cells, the supervision of multiple groups of battery cells can be achieved at the same time, and the early warning supervision work can be completed. At the same time, when an abnormality occurs in an individual battery cell, an automatic switching operation can be performed to ensure the safety of the intelligent energy storage system.

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 relates to an energy storage power supply system for processing redundant electric energy of a load power supply network. The energy storage power supply system comprises a power supply unit, a converter and an energy storage battery, the converter comprises a load circuit, and the energy storage battery comprises a switching circuit and a plurality of battery clusters connected with the switching circuit in parallel. The converter further comprises a controller, the controller comprises a load circuit control module and a switching circuit control module, when the power supply amount of the load power supply network is larger than the consumption amount of the user load, redundant electric energy enters a load circuit of the converter, and the controller controls the load circuit to be automatically matched with the switching circuit of the energy storage battery. The other part of redundant electric energy is stored in the battery cluster with low energy; and when the power supply quantity of the load power supply network is smaller than the consumption quantity of the user load, the switching circuit control module controls the switching circuit to automatically match the battery cluster with high energy storage so as to preferentially supply power to the user load through the battery cluster with high energy storage.

The present application discloses a dual-power switching circuit and a power supply architecture. Its first-stage switching module is configured to generate a first output voltage for supplying power to the first-stage control module based on a first power supply voltage and a second power supply voltage; the first-stage control module is configured to operate under the power supply of the first output voltage to respectively generate a first judgment signal and a second judgment signal; the second-stage switching module includes a first switch component and a second switch component, and is configured to, according to the first judgment signal and the second judgment signal, turn on the first switch component so that the target output voltage output by the output end of the second-stage switching module is the first power supply voltage, or turn on the second switch component so that the target output voltage output by the output end of the second-stage switching module is the second power supply voltage. In this technical solution, it can effectively complete the switching of dual-power voltage inputs without causing voltage drop loss after the power supply voltage input, and can be applicable to application scenarios where the initially input power supply voltage is very low.

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.