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1659results about "Safety/protection battery circuits" patented technology
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Battery pack for cordless power tools
InactiveUS7728553B2Avoid damageCircuit monitoring/indicationCharge equalisation circuitEngineeringPower tool
Owner:BLACK & DECKER INC
System and method for tracking and archiving battery performance data
ActiveUS9197079B2Provide reliablyEnhanced and improved operatingCircuit authenticationCircuit monitoring/indicationRechargeable cellEngineering
An intelligent rechargeable battery pack having a battery management system for monitoring and controlling the charging and discharging of the battery pack is described. The battery management system includes a memory for storing data related to the operation of the battery, and the battery management system is also configured to communicate the data related to the operation of the battery to other processors for analysis.
Owner:ZOLL CIRCULATION
Viral distribution of battery management parameters
A carrier, such as a battery, that queries a memory of a charger or charging circuit, or the memory of equipment or discharging circuit powered by the battery, to determine the relative date or version of data, operating parameters and / or software on both the battery and the equipment, and either provides updated data, operating parameters and / or software to the equipment, or retrieves later dated data, operating parameters and / or software from the equipment to update the memory of the battery and / or further distribute the updated data, operating parameters and / or software to other batteries or equipment.
Owner:ZOLL CIRCULATION
Protection methods, protection circuits and protective devices for secondary batteries, a power tool, charger and battery pack adapted to provide protection against fault conditions in the battery pack
InactiveUS20050077878A1Primary cell to battery groupingCharge equalisation circuitElectrical batteryEngineering
In a cordless power tool system, protection methods, circuits and devices are provided to protect against fault conditions within a battery pack that is operatively attached to a power tool or charger, so as to prevent internal or external damage to the battery pack or attached tool or charger. The exemplary methods, circuits and devices address fault conditions such as over-charge, over-discharge, over-current, over-temperature, etc.
Owner:BLACK & DECKER INC
Charging station
InactiveUS20100013434A1Function increaseHybrid vehiclesCredit registering devices actuationElectricityLocking mechanism
The present application relates to a charging station operable in a charging cycle for charging an electric vehicle. The charging station has a key-activated controller for controlling the charging cycle. The application also relates to a key for operating the charging station. Furthermore, the application relates to a charging station having an interface for connecting the charging station to a data network. The application also relates to a charging station having a socket for receiving a plug and a key-operated locking mechanism for locking a plug in said socket. A frangible panel movable between an open position and a closed position may be provided. A processor may be provided for generating data to impose a financial charge on an individual for using the charging station. The application also relates to methods of operating a charging station including the steps of obtaining user identification data; supplying electricity to a charging socket; and generating data for levying a financial charge on the user.
Owner:ELEKTROMOTIVE
Method and system for battery protection
ActiveUS20060091858A1Solution to short lifeSevere impactCharge equalisation circuitCell electrodesElectric powerBattery pack
A method of conducting an operation including a battery. The battery includes a cell having a voltage. Power is transferable between the cell and the electrical device. A controller is operable to control a function of the battery pack. The controller is also operable with a voltage at least one of equal to and greater than an operating voltage threshold. The cell is operable to selectively supply voltage to the controller. The method includes the act of enabling the controller to operate when the voltage supplied by the cell is below the operating voltage threshold.
Owner:MILWAUKEE ELECTRIC TOOL CORP
Method and system for battery protection
ActiveUS20050007068A1Solution to short lifeIrreversible damageCharge equalisation circuitEmergency protective circuit arrangementsElectrical devicesEngineering
A system and method for battery protection. In some aspects, a method of conducting an operation including a battery pack, includes the acts of monitoring a first battery pack condition at a first monitoring rate, determining when a second battery pack condition reaches a threshold, after the second battery pack condition reaches the threshold, monitoring the first battery pack condition at a second monitoring rate, the second monitoring rate being different than the first monitoring rate. In some aspects, a method of conducting an operation including a battery, the battery including a cell having a voltage, power being transferable between the cell and the electrical device, a controller operable to control a function of the battery pack, the controller being operable with a voltage at least one of equal to and greater than an operating voltage threshold, the cell being operable to selectively supply voltage to the controller, includes the act of enabling the controller to operate when the voltage supplied by the cell is below the operating voltage threshold.
Owner:MILWAUKEE ELECTRIC TOOL CORP
Battery pack for cordless power tools
InactiveUS20080238370A1Avoid damageCharge equalisation circuitCircuit monitoring/indicationEngineeringPower tool
A battery pack which includes a battery pack electronic control circuit adapted to control an attached power tool and / or an attached charger. The battery pack includes additional protection circuits, methodologies and devices to protect against fault conditions within the pack, as the pack is operatively attached to and providing power to the power tool, and / or as the pack is operatively attached to and being charged by the charger.
Owner:BLACK & DECKER INC
Health Management of Rechargeable Batteries
ActiveUS20100121587A1Improved characterizationEasy to controlCharge equalisation circuitCharging managementManagement unitState of health
Systems and methods for health management of rechargeable batteries are disclosed. In one embodiment, a rechargeable battery system includes a rechargeable battery, and a battery health management unit operatively coupled to the rechargeable battery and including a state of health module configured to estimate a battery health by receiving battery-related data and predicting one or more failure modes. The state of health module may further include a prognostic failure mode component configured to combine at least one flight data variable with at least one model-based prognostic. In alternate embodiments, the battery health management unit may further include a state of life module and a state of charge module.
Owner:THE BOEING CO
Battery pack manager
ActiveUS20060103351A1Without introducing complexityIncrease power consumptionCharge equalisation circuitMaterial analysis by electric/magnetic meansEngineeringVoltage reference
In a battery pack manager that manages series-connected rechargeable unit cells, a cell equalizer equalizes the cell voltages by individually discharging the unit cells according to deviations from reference voltages. An overcharge / overdischarge detector detects an overcharge and an overdischarge state of each unit cell. An inhibit circuit prevents the cell equalizer from discharging the unit cells when the overcharge / overdischarge detector is activated to reduce the cell voltage variability, which would otherwise occur as a result of interference from the overcharge / overdischarge detector, so that the overcharge / overdischarge states of all unit cells can be determined with precision. Connecting lines of the unit cells are monitored to detect a line-cut. The inhibit circuit further inhibits the cell equalizer when the connecting lines are being monitored to reduce the cell voltage variability, which would otherwise occur as a result of interference from the line-cut detection, so that false line-cut detection is avoided.
Owner:DENSO CORP
Fuel cell based rechargable power pack system and associated methods for controlling same
InactiveUS20070190369A1Primary cell to battery groupingCharge equalisation circuitDc dc converterFuel cells
A power pack system for charging a set of isolated batteries is provided. In an illustrative embodiment of the invention, a single fuel cell, a single DC-DC converter and a single system controller device comprises the power-generation side of the power pack. A set of switches is used to connect the power-generation side of the Power pack to one of the isolated batteries in the power pack, thereby recharging that particular battery in the battery power pack set. A battery protection and powerpath control device communicates with the system controller to determine which switches are to be closed depending upon which battery requires recharging. During normal operation the switches will follow the direction from the system controller. If a fault is detected by the battery protection circuit, the protection circuit will take priority and turn off the appropriate switch(es).
Owner:MTI MICROFUEL CELLS
Methodology for charging batteries safely
ActiveUS20110298417A1Charge equalisation circuitCharging managementMonitoring systemData acquisition
An apparatus and method for identifying a presence of a short circuit in a battery pack. A fault-detection apparatus for a charging system that rapidly charges a collection of interconnected lithium ion battery cells, the safety system includes a data-acquisition system for receiving a set of data parameters from the collection while the charging system is actively charging the collection; a monitoring system evaluating the set of data parameters to identify a set of anomalous conditions; and a controller comparing the set of anomalous conditions against a set of predetermined profiles indicative of an internal short in one or more cells of the collection, the controller establishing an internal-short state for the collection when the comparing has a predetermined relationship to the set of predetermined profiles.
Owner:TESLA INC
Method and system for battery protection
InactiveUS7589500B2Solution to short lifeSevere impactCharge equalisation circuitCell electrodesEngineeringElectric power
Owner:MILWAUKEE ELECTRIC TOOL CORP
Battery System
ActiveUS20120175953A1Improve reliabilityCharge equalisation circuitIndicating/monitoring circuitsTerminal voltagePerformed Diagnosis
A battery system according to the present invention includes: a battery module comprising a plurality of cell groups connected in series, each comprising a plurality of cells connected in series; a plurality of integrated circuits provided to corresponding each cell group of the battery module, that perform detection of terminal voltages of the cells in the corresponding each cell group, and that also perform diagnosis; and a battery controller that, along with issuing commands to the plurality of integrated circuits, also receives results of detection and results of diagnosis by the plurality of integrated circuits; wherein the battery system comprises a writable non-volatile memory, and data is stored in the writable non-volatile memory specifying usage environment of the battery module, including a maximum voltage or a maximum current of the battery module and history data based upon operation history of the battery module.
Owner:HITACHI LTD
Battery system with relays
ActiveUS20100127663A1Reliable cut-offMore currentCharge equalisation circuitSafety/protection battery circuitsDelayed timeBattery system
The battery system is provided with a battery 1 that can be recharged, a fuse 8 connected to the battery 1 that blows with excessive current flow, relays 2 connected to the output-side of the battery 1, and a current cut-off circuit 4 that detects excessive battery 1 current and controls the relays 2. The current cut-off circuit 4 detects excessive battery 1 current, and is provided with a timer section 24 that designates a time delay until the relays 2 are switched from ON to OFF. For the delay time of the timer section 24, the fusing current of the fuse 8 is set lower than the maximum cut-off current of the relays 2 and higher than the maximum allowable battery 1 charging and discharging current. In a situation where excessive current greater than the maximum cut-off current of the relays 2 flows through the battery 1, the fuse 8 is blown during the timer 24 delay time, and the current cut-off circuit 4 switches the relays 2 from ON to OFF when the delay time has elapsed.
Owner:SANYO ELECTRIC CO LTD
Abnormal voltage detector apparatus for detecting voltage abnormality in assembled battery
InactiveUS20060028179A1Improve accuracyImprove reliabilityCircuit monitoring/indicationCurrent/voltage measurementAnomaly detectionTime ratio
An abnormal voltage detector apparatus is provided for an assembled battery including a plurality of battery blocks connected in series to each other. In the abnormal voltage detector apparatus, a detecting part detects whether or not each of the battery blocks is in a voltage abnormality state by comparing either one of a voltage of each battery block and each battery measuring voltage, that is a voltage lowered from the voltage of each battery block, with a predetermined reference voltage, generates each of abnormality detecting signals containing information about a detected result, calculates a time ratio of a time interval, for which the assembled battery is in a voltage abnormality state, to a predetermined time interval, based on the abnormality detecting signals, and detects a voltage abnormality of the assembled battery based on a calculated time ratio.
Owner:PANASONIC EV ENERGY CO LTD
Battery apparatus for controlling plural batteries and control method of plural batteries
InactiveUS6891352B2Low costLower battery costsCharge equalisation circuitCircuit monitoring/indicationEngineeringOpto electronic
Lower order control devices control plural battery cells configuring plural battery modules. An input terminal of the low order control device in the highest potential, an output terminal of the low order control device in the lowest potential, and a high order control device are connected by isolating units, photocouplers. Diodes which prevent a discharge current of the battery cells in the battery modules are disposed between the output terminal of the low order control device and the battery cells in the battery module on the low potential side. Terminals related to input / output of a signal are electrically connected without isolating among the plural low order control devices.
Owner:HITACHI AUTOMOTIVE SYST LTD
Protection methods, protection circuits and protection devices for secondary batteries, a power tool, charger and battery pack adapted to provide protection against fault conditions in the battery pack
ActiveUS20080180059A1Primary cell to battery groupingCharge equalisation circuitElectrical batteryEngineering
Owner:BLACK & DECKER INC
Battery apparatus for controlling plural batteries and control method of plural batteries
InactiveUS20050242775A1Lower battery costsLow costCharge equalisation circuitCircuit monitoring/indicationElectricityOrder control
Owner:HITACHI AUTOMOTIVE SYST LTD
Electrical vehicle charging devices, systems, and methods
InactiveUS20160193932A1Improve usabilityMinimize limitationCircuit monitoring/indicationCharging stationsCharging stationElectric power
A charging station expander (expander) for receiving electrical power from an existing charging station and distributing the electrical power received to at least one PEV is described. The expander increases usability of the existing charging station by permitting the existing charging station to be effectively coupled to two or more PEVs for charging according to methods described herein. The expander may comprise a female port, a switch relay, power distribution cables, a controller, and a housing. The housing may house the switch relay, the controller, portions of the female port, and portions of the power distribution cables. The female port removably couples with a male connector of the existing charging station. The power distribution cables removably couple with the two or more PEVs. The controller controls both an order of how the two or more PEVs may be charged and how a given PEV presently receiving charging may be charged.
Owner:VAGHEFINAZARI PEDRAM
Lithium polymer battery powered intravenous fluid warmer
InactiveUS20070105010A1Avoid adjustmentCell temperature controlMedical devicesBattery chargeElectrical devices
A lithium polymer (LiPo) battery pack having LiPo battery cells is provided which includes battery protection circuitry, charging circuitry, cell balancing circuitry, and control and communication circuitry. The batteries can be charged while in use by an internal charger. Battery charging and discharging are accomplished in a controlled and protected manner to avoid overcharging and overdischarging conditions. The novel battery pack has built-in safeguards against dangerous LiPo battery conditions and is implemented in a small, portable unit which contains the battery cells, control and protection circuitry, internal charger and display gauge. The battery pack is useful for powering an intravenous fluid warmer or other medical or electrical devices and equipment.
Owner:VITAL SIGNS INC
Universal system for charging at least one portable device
InactiveUS20110025263A1Easy to adjustEasily integrable into a componentSafety/protection battery circuitsMobile unit charging stationsEmbedded systemElectric energy
A universal system for recharging at least one portable appliance, the dedication of which is being capable from a device (4) of suiting any portable appliance version by means of at least one adapter (6) which may be specific in all or part of the relevant portable appliance. The invention, in its preferred alternative embodiments, allows simultaneous or sequential recharging of a plurality of portable appliances. With the invention it is further possible to save electric energy in a stand-by mode and the risks of fire and electrocution in the case of any dysfunction are reduced as compared with the solutions of the state of the art.
Owner:ERGYLINK
Method and system for battery protection
ActiveUS20050258801A9Solution to short lifeSevere impactCharge equalisation circuitEmergency protective circuit arrangementsElectrical devicesEngineering
Owner:MILWAUKEE ELECTRIC TOOL CORP
High reliable smart parallel energy storage tank charge/discharge management system
InactiveUS20090102424A1Generate flexibleImprove reliabilityCharge equalisation circuitCharging managementTime informationExternal energy
The high reliable smart parallel energy storage tank charge / discharge system is composed of one or multiple identical Smart Energy Storage Unit. And each Smart Energy Storage Unit comprises an Energy Storage Management Module, an Energy Storage Device, a Sensor Switch Device and a Smart Identifier and Transmission Interface. All the historical records and real time information for charge / discharge condition of Smart Energy Storage Unit can upload to external connected equipment via the External Equipment Interface. To operate in coordination with an External Energy (Electric Power) Source, under any one Smart Energy Storage Unit served as the controller, this management system can carry out an effective charge / discharge management. When the Smart Energy Storage Unit which is in charged of the charge / discharge managing failed and cannot operate, the other normally operated Smart Energy Storage Units can automatically detect the situation and replace the role of charge / discharge management immediately so as to accomplish a high reliable charge / discharge management system.
Owner:J TEK
Assembled battery system and assembled battery protection device
An assembled battery system includes an assembled battery including a plurality of electric cell blocks connected in series, the electric cell blocks each including at least one nonaqueous electrolyte secondary battery provided with a negative electrode current collector formed of aluminum or an aluminum alloy, a voltage measuring unit configured to measure a plurality of voltages of the electric cell blocks, a controller which controls charge / discharge of the assembled battery in accordance with the measured voltages, and bypass circuits connected in parallel to the electric cell blocks, the bypass circuits each bypassing a current that flows from a negative electrode of one of the electric cell blocks to a positive electrode of the one of electric cell blocks when the measured voltage of the one of electric cell blocks is a negative value not greater than a threshold value.
Owner:KK TOSHIBA
Battery management system and driving method for cutting off and coupling battery module from/to external device
Owner:SAMSUNG SDI CO LTD
Charging device and mobile terminal
InactiveCN105896670ADoes not cause heat problemsSolve fever problemCharge equalisation circuitParallel/serial switchingElectricityElectrical battery
The embodiment of the invention provides a charging device and a mobile terminal, and belongs to the technical field of charging of batteries. The charging device comprises a charging interface, a charging circuit, a battery pack, a first switching module and a control module, wherein the battery pack comprises at least two charging batteries; the charging circuit is connected between the charging interface and the battery pack in series; the first switching module is electrically connected with the battery pack; and the control module is connected with the first switching module and controls the first switching module to switch the connection state between the charging batteries into a parallel state or a series state. The problem of heating of the batteries caused by over-high circulating currents of the batteries is solved, so that, by the charging device provided by the embodiment, the problem of heating of the batteries caused by current rise of battery bodies can be effectively solved when the batteries are quickly charged.
Owner:LETV HLDG BEIJING CO LTD +1
Method and apparatus for creating a dynamically reconfigurable energy storage device
ActiveUS20190103750A1Charge equalisation circuitParallel/serial switchingComputer hardwareControl cell
A reconfigurable energy storage system comprising energy modules comprising interconnected circuits, each circuit having at least two terminals, which can function as input or output terminals; an energy storage unit with a positive and a negative terminal, either of which can be interposed between the terminals; a switch connected to the storage unit, and where the switch module provides parallel, series, and / or bypass connectivity for and enables the ability to reverse polarity in the storage unit, and enables the ability to simultaneously charge and discharge storage units within the system; and a control unit that monitors an operational state of the energy storage unit in the energy modules and controls the switches, to bypass, connect the storage unit in parallel, series, and / or change the polarity of the storage unit, wherein the control unit determines a number of storage units available for use from the storage units in the circuits.
Owner:GLX POWER SYST INC
Apparatus and method for detecting failure of battery
ActiveUS20130093383A1Safely and reliably maintainSafely and reliably and useElectrical testingCells structural combinationInternal pressureElectrical battery
An apparatus for detecting a failure of a battery includes a plurality of cell internal pressure sensors each provided in a corresponding one of a plurality of battery cells to measure internal pressure of the battery cells and generate and transmit pressure signals, a sensing unit for receiving the pressure signals to sense the internal pressure of the battery cells, a control logic unit for receiving the internal pressure data of each of the battery cells and determining a battery cell having cell internal pressure outside of a predetermined normal range of internal pressure of the battery cell as a failed cell, and a battery control unit for controlling charging or discharging of the other battery cells of the battery except for the failed cell while the failed cell is being repaired or replaced.
Owner:ROBERT BOSCH GMBH +1
System and method for rechargeable battery
InactiveUS20120319653A1Circuit monitoring/indicationIndicating/monitoring circuitsRechargeable cellMonitoring system
A rechargeable battery has a plurality of cell strings each having a plurality of rechargeable electrochemical cells connected in series, and a plurality of charge regulators each connected in series with one of the cell strings. Each charge regulator is adapted to limit a charge voltage or current applied to the cell string based on a determined top-of-charge voltage for each cell string. In an embodiment, the rechargeable battery has a monitoring system to sense an operating parameter of the cell string and determine the top-of-charge voltage, and each of the charge regulators includes a charge voltage controller in communication with the monitoring system. In another embodiment, the rechargeable battery has discharge regulators each connected in series with one of the cell strings, and adapted to limit a discharge voltage or current from a given cell string based upon at least one monitored parameter of the cell string.
Owner:GENERAL ELECTRIC CO
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