238results 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 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 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.

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 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.

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 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.

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.

System and method for powering electrical consumers of an electric or hybrid vehicle. The invention relates to a power supply system (1) for electrical consumers of an electric vehicle comprising: - a high-voltage battery (8), - two DC-DC converters (4, 6) supplying an on-board network (50), - an energy storage unit (5) connected to the output of the converters (4, 6) and capable of supplying the on-board network (50) in standby mode, - power lines (L2, L5, L6, L7, L8, L10) supplying distribution boxes (12, 13, 14), - the distribution boxes (12, 13, 14), which include electronic switching components (t1, t2, t3, t4, t5, t6) connected to electrical consumers, the power supply system (1) further comprising a coupling device (2, 3) connected to the output of the converters (4, 6). and to the power lines,and comprising at least one electronic switching component(s). (Figure 1)

The present invention relates to the technical field of switching of marine box-type mobile power supplies, and more specifically to a method for switching and discharging control of box-type mobile power supplies, comprising: S1, assigning unique identifiers to all box-type mobile power supplies; S2, grouping the box-type mobile power supplies; S3, setting a discharge order, and switching the box-type mobile power supply with a discharge order of 1; S4, setting an initial discharge power; S5, checking the state of charge (SOC); S6, adjusting the discharge power of the box-type mobile power supply with an excessively large SOC deviation; S7, switching the box-type mobile power supply with an SOC that has reached a lower limit to the next available box-type mobile power supply; S8, checking for fault alarms, and controlling the alarms to eliminate them based on the type of fault alarm information; and adjusting the position and discharge order of unused power supplies. The present invention ensures that the discharge progress of each battery pack is consistent, and the box does not need to be reversed when switching batteries, thus avoiding the situation where an entire box-type mobile power supply is left unused for a long time.

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).

The invention discloses a battery cluster circulating current suppression system based on a switching technology. The battery cluster circulating current suppression system comprises an energy storage bidirectional converter, an integrated multi-channel switching device, a plurality of battery clusters and an energy storage energy management system, the energy storage bidirectional converter is connected with a high-voltage power system through a transformer; each battery cluster comprises at least one battery module; the integrated multi-channel switching device is used for carrying out rapid switching between the plurality of battery clusters and the common bus, connecting one of the plurality of battery clusters with the energy storage bidirectional converter, switching in turn according to a control instruction in the charging and discharging process, always keeping access of only one group of battery clusters, and avoiding parallel connection; and the energy storage energy management system is used for collecting electric quantity information of each battery cluster and controlling the access state of the integrated multi-channel switching device based on a set rule so as to realize alternate switching of the battery clusters, restrain circulation and prolong the service life of the battery.

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.