51results about How to "Battery protection" patented technology

The present invention provides a method of protecting a battery for a hybrid vehicle, in which a counter electromotive voltage of a motor is limited by limiting engine RPM if it is determined that there is a risk of battery overcharge in the event of a failure of a component related to motor control, such as a motor controller, a battery controller, etc., thus protecting the battery from the risk of overcharge and securing safety of the battery.

A power charger circuit converts input energy to DC output energy, with the input energy flowing in a first direction such as via a cable having multiple conductors to provide the output energy, with the power charger including at least one switch having an open state and a closed state, the open state to interrupt the flow of input energy and the power charging circuit allowing for energy flow in a second direction opposite the first direction so that the switch may be moved to the closed state.

The method of charging a battery array performs constant current, constant voltage charging of a battery array while detecting the voltage of each battery. The battery array is a plurality of series connected batteries. The charging method detects the voltage of each battery cell at a prescribed sampling rate. When the voltage of any battery cell exceeds a preset maximum specified voltage, charging power is reduced for constant current, constant voltage charging of the battery array.

A novel tracking system is disclosed. In one embodiment, a long-range tracking device is incorporated into a removable footwear insole and a short-range tracking device is incorporated into another removable footwear insole. The long-range tracking device includes a location determining device, a wireless communication device, and a power source. In a more particular embodiment, the location determining device is a GPS receiver, and the communication device is a cellular modem.

A multi-port charging device for charging plural electronic devices simultaneously includes a body containing a circuit board that has plural current-detecting elements, a charging section including plural connecting ports each of which is connected to one of the electronic devices to be charged, wherein each of the connecting ports is associated with a lamp indicator and electrically connected to a current-detecting element, a power inlet port for connecting an external power source, a controlling section for selectively set a charging current for any of the connecting ports, and plural current-detecting elements for detecting charging currents of the electronic device, respectively, and feeding back a signal to the plural lamp indicators, so that each of the lamp indicators shows one of charging states according to the signal. The charging states at least include a fast charging mode, a slow charging mode, an off mode and a mis-connection mode.

The invention belongs to the field of battery exchange of an electric vehicle and relates to an unlocking transferring device for a chassis type battery. The unlocking transferring device is used for automatically locking, unlocking and transferring a chassis type electric vehicle battery. The unlocking transferring device comprises a rail component, a lifting component and an unlocking component, wherein the lifting component comprises a base and a lifting platform; the base is located at the bottom; the lifting platform is located at the top; the base is arranged on the rail component; and the unlocking component is arranged on the lifting platform. According to the invention, the unlocking transferring device for the battery can be used for automatically transferring to an electricity exchange chamber and automatically taking and putting the battery after a chassis type electric vehicle is located. The unlocking transferring device is used for solving the problem that large and heavy batteries only can be supplemented with electric quantity in a charging manner by reason of difficulty in electricity exchange, so that the battery is protected while a reference basis is supplied for the development of an electricity exchange mode of a new energy vehicle.

A hybrid vehicle includes an engine, a first motor, a planetary gear mechanism, a second motor, a battery, and an electronic control unit. The electronic control unit is configured to: set a shift stage based on a depression amount of an accelerator and a vehicle speed or a driver's operation; set a base driving force based on the degree of the depression amount of the accelerator, the vehicle speed, and a target rotation speed; set a correction driving force such that the correction driving force increases with an increase in elapsed time after upshifting or an increase in the vehicle speed after upshifting when the shift stage upshifts; and control the engine, the first motor, and the second motor such that a driving force obtained by correcting the base driving force using the correction driving force is output to the drive shaft.

The invention relates to a storage battery structure capable of being kept in a constant-temperature state by means of combined water-cooling and air-cooling radiating. The storage battery structure is characterized by comprising a storage battery body (1); a shell (2) with radiating fins is mounted outside the storage battery body (1), a hollow structure is arranged between the storage battery body (1) and the shell (2) with the radiating fins and is filled with cooling liquid (3), a water inlet (4) is formed in the upper side of a side of the shell (2) with the radiating fins, and a return water opening (5) is formed in the lower side of the side of the shell (2). The storage battery structure has the advantages that good radiating effects can be realized, and a storage battery can be kept in the constant-temperature state by means of combined water-cooling and air-cooling simultaneous radiating when charge currents or heating speeds are excessively high and the temperature of the storage battery reaches a certain temperature; power supply and discharge circuits can be automatically opened when voltages and currents are abnormal and the temperature reaches excessively high states, accordingly, effects of protecting the battery and completely eradicating risks can be realized, the service life of the storage battery can be prolonged to the greatest extend, and the storage battery structure is safe and environmentally friendly and can be energetically popularized.

The invention provides a slow charging method and an intelligent terminal. The method includes the following steps: when an intelligent terminal is connected with a charging device, whether the intelligent terminal meets a slow charging condition is detected; and if the intelligent terminal meets the slow charging condition, the intelligent terminal is charged slowly. Slow charging is opened whena user does not need fast charging. The need of users for fast charging is satisfied, and the battery is protected to the maximum.

The invention discloses an intelligent vehicle-mounted charger. The intelligent vehicle-mounted charger comprises a shell, an integrated control module, a voltage converter, negative-pole elastic buckles, a positive-pole elastic head, an audio interface, a charging data line USB interface, operating buttons, a digital LCD, LED charging indicator lights and a microphone. The integrated control module is mounted in the shell. The voltage converter is mounted in a cavity in the lower portion of the shell. The negative-pole elastic buckles are mounted on the side faces of the lower portion of the shell. The positive-pole elastic head is mounted at the bottom end of the shell. The audio interface and the charging data line USB interface are mounted on the side face of the upper end of the shell. According to the intelligent vehicle-mounted charger, after a vehicle is started, the shell of the vehicle-mounted charger is normally connected with a cigarette lighter socket and the vehicle-mounted charger is powered on, the green light of the LED charging indicator lights flickers to show that charging is normal, the audio interface is connected with a vehicular audio system through a data line, the Bluetooth function of a mobile phone and the Bluetooth function of the vehicle-mounted charger are set to achieve Bluetooth connection, and then the function of vehicle-mounted Bluetooth hands-free calls can be achieved.

The invention discloses a charging protection method based on an intelligent socket. The method comprises the following step: S100) when a device to be charged is charged on the intelligent socket, collecting a charging current provided to the device to be charged by the intelligent socket; S200) comparing the collected charging current of the device to be charged with a stored charging current memory curve of the device to be charged to judge whether the device to be charged finishes charging, and if so, entering the step S300); and S300) disconnecting the electrical connection between the intelligent socket and the device to be charged. Besides, the invention also discloses the intelligent socket, which comprises an acquisition unit, a storage unit, an operation unit and a control unit.The method realizes charging control on the intelligent socket serving as a power supply end, so that charging can be controlled simply and effectively; and after the electrical device finishes charging, automatic power off is realized to achieve a battery protection purpose, thereby preventing the danger of damaging the battery due to overcharge of the charging device.

The invention discloses a lithium battery tab with an overcurrent automatic-fusing function. The lithium battery tab comprises a tab piece, wherein one end of the tab piece is connected to a cell external circuit while the other end of the tab piece is connected with a battery tab; and a through hole is formed in the middle of the tab piece in a punching manner. According to the lithium battery tab, the through hole is formed in the middle of the tab piece in the punching manner, so that a conductive part in the middle of the tab piece is thinned; and when overhigh current passes through the tab piece caused by short circuit, the parts on the two sides of the through hole can be fused in time so as to protect the battery.

The invention discloses a state migration method of an information transmitting method, an information transmitting device and an information transmitting terminal and the terminal. The state migration method of the information transmitting method, the information transmitting device and the information transmitting terminal includes the following steps that the network side sends configuration parameters of a first-stage non-continuous receiving (1st DRX) sub state, configuration parameters of a second-stage non-continuous receiving (2nd DRX) sub state, timing time of a timer T321, configuration parameters of the second-stage non-continuous receiving (2nd DRX with shorter Rx Burst) with a shorter received impulse time frame under a Cell_FACH state of the terminal and a terminal power-down mode to the terminal under the public connection (Cell_FACH) state. In the UMTS network, electricity quantity of UE can be protected to the utmost and great significance is brought to the UE in a power-depletion warning state.

Wireless local network integrating the locating and the seamless roaming of mobile nodes.

The device of the invention is comprised of a server (110) constituting the core of the network, fixed access points (120) providing the low-level protocol, fixed anchors (140) providing the locating function and nodes (140) comprising sensors and actuators according to the end purpose of the network. The regrouping of the upper network layers at the physical layer in the server allows for a seamless roaming and an approximate locating of the nodes by the network at each frame transmitted.

The denser anchor network allows for a precise locating of the nodes, upon request, thanks to a distance measurement by time of flight of radio waves, with the nodes then behaving as an active radio deflector.

A lawn mower includes an electric motor, a driving assembly coupled to the electric motor, a blade assembly coupled to the driving assembly, a battery for providing electricity to the electric motor, a switch unit electrically connected to the electric motor and the battery, and a detecting unit. The detecting unit includes a sampling resistor electrically connected in series with the battery, and a trigger circuit electrically connected in parallel with the sampling resistor and configured to control the switch unit to make or break electrical connection between the electric motor and the battery according to detected voltage across the sampling resistor.

The invention relates to the technical field of mobile terminals, and discloses a method and system for a mobile terminal to adjust the total capacity of a battery. The method comprises the following steps that: the mobile terminal tests battery capacities corresponding to various voltage intervals of a battery, the capacity of which is not lost, such that the battery capacities corresponding to various voltage intervals and the total capacity of the battery are obtained; the mobile terminal detects the total capacity of the battery for one time every a pre-set time period; when the mobile terminal detects that the total capacity of the battery in the mobile terminal is changed, the battery capacities of each section of voltage of the battery are automatically adjusted; and thus, updating of the total capacity of the battery in the mobile terminal is completed. According to the method and the system disclosed by the invention, application software for automatically updating the battery capacities is set in the mobile terminal; the total capacity of the battery can be automatically detected and adjusted; therefore, the battery can be used by users for a long time; the users cannot be obviously influenced by the problem that the total capacity of the battery is changed; the battery can be effectively protected; the service life of the battery is prolonged; and great convenience is provided for the users.

The invention discloses a self-learning charging power current control method and system. The method comprises the following steps: memorizing battery state parameters at a preset frequency in a battery charging process; calculating variations of the battery state parameters in a time period corresponding to the preset frequency within a preset time length; calculating difference values between every two adjacent variations; determining a reference allowed charging power current value according to the difference values between adjacent variations and a variation process of the battery state parameters, and recording the reference allowed charging power current value as I0; and detecting a current actual allowed charging power current value output in real time, recording the current actual allowed charging power current value as I1, comparing the I0 with the I1, correcting an actual I1 value into the I0 if an offset exists between the I0 and the I1, and keeping the I1 value constant if the offset does not exist. Through adoption of the self-learning charging power current control method and system, an allowed charging power current value of a battery pack under different aging degrees and in different environments can be calculated accurately; a charging power current data table is generated automatically and updated online at any time in real time; batteries are protected effectively; and the service lives of the batteries are prolonged.

The invention provides battery management method and device, equipment and a medium, wherein the method is applied to a mobile terminal, and comprises the steps: obtaining the current state of a battery; determining whether the current state is a charging state or not; when the current state is a charging state, managing the current state of the battery according to a preset first management condition. According to the method, the temperature of the rechargeable battery, the magnitude of the charging current, the magnitude of the charging voltage, the charging cut-off voltage and the discharging voltage are uninterruptedly detected, so that the cruising ability of the battery is improved, the battery is protected, and the use stability of the battery is improved.

The invention discloses a minimum monomer voltage-based electric vehicle discharge protection method. During a battery discharge process, battery SOC and monomer voltage are determined; when the battery SOC is lower than a preset SOC lower limiting value or the minimum monomer voltage of the battery is lower than a lower limiting value of the monomer voltage, battery discharge is terminated. During the discharge process, SOC works as judgment condition; under a specific condition, discharge of the electric vehicle by discharge equipment is paused, and a minimum value of the power battery monomer voltage can be acquired; discharge of the electric vehicle can be protected according to dual judgment conditions of the SOC and the minimum monomer voltage value, so the battery can be effectivelyprotected; excessive discharge of the battery can be avoided; meanwhile, much electricity can be discharged by the electric vehicle; and electric vehicle energy storage efficiency failure due to excessive protection can be prevented.

The invention discloses a safe battery pack shunt circuit structure. Two ends of batteries are fixed in fixed through holes in connecting plates through connecting plates, the batteries are mutually connected in parallel through conducting pieces arranged in the fixed through holes and extend to be guided out of the side surfaces of the connecting plates, the batteries fixedly arranged on the connecting plates form battery groups, and PCB boards are electrically connected with extending parts so as to connect the battery groups in parallel to form a battery pack; the apertures of the fixed through holes are fit with the batteries, so that the batteries can be always smoothly and steadily and fixedly arranged on the connecting plates even during vibration in a use process of the battery pack, and the relative displacement is prevented; fuse protectors arranged on the PCB boards can be automatically fused when the current supplied by the batteries is excessive, and the electric connection of the abnormal battery groups are cut off, so that a dangerous accident is further avoided; and shells containing the batteries are arranged to be a dual-layer structure, and a second shell located at an inner layer is a polyvinyl chloride flame-retardant layer, so that the spontaneous combustion of the battery pack when the batteries are in a superheat state can be avoided.

The invention provides a system overcurrent protection circuit applied to a control circuit board of a floor sweeping robot, comprising a battery interface connected with a power supply, a power switch interface connected in series with the battery interface, and a plurality of load circuit units connected in parallel. Between that power switch interface and each load circuit unit, a self-recoveryfuse is connected in series, which can be changed into a high-resistance state when the current is suddenly increased. One end of each load circuit unit is connected with one end of a self-recovery fuse, and the other end is connected with a common ground; The negative electrode connector of the battery interface is serially connected with a resistor R1 and then connected with a common ground, When a load in a system is overcurrent or short-circuited, As that current is instantaneously increase, the temperature of the self-restoring fuse element is suddenly increased, and the element become ahigh-resistance protection state, so as to achieve the purpose of disconnecting the battery from the load and protecting the battery. Aft the load is overcurrent, the fuse acts and the battery voltage can be output normally, and the load overcurrent does not impinge the battery, thereby achieving the effect of protecting the battery.

The invention relates to a pure electric vehicle driving range system based on double ampere-hour integral, and a calculation method of the pure electric vehicle driving range system. The pure electric vehicle driving range system comprises a vehicle body, wherein the vehicle body is provided with an online adjustment model parameter module, an equivalent circuit model module, a self-adaptive EKF residual electric quantity estimation module, an ampere-hour integral residual electric quantity module, a residual electric quantity output selector module and a remaining mileage calculation module, the online adjustment model parameter module is in data connection with the equivalent circuit model module, the equivalent circuit model module is in data connection with the self-adaptive EKF residual electric quantity estimation module, the online adjustment model parameter module inputs adjustment parameters to an equivalent circuit model, the self-adaptive EKF residual electric quantity estimation module calculates based on the equivalent circuit model module, and the remaining mileage calculation module calculates based on the residual electric quantity output selector module. The pure electric vehicle driving range system and the calculation method thereof adopt two kinds of ampere-hour integral methods including charge-discharge efficiency, calculate residual electric quantity of a power battery parallelly, select and output the current residual electric quantity in an intelligent manner, and further improve the estimation precision.

The invention discloses a brushless power water suction pump adopting the following technical means. According to the technical means, a containing cavity is formed inside a water pump lower cover; the water pump lower cover is provided with a water pump upper cover; a water pump is arranged inside the containing cavity; a connection frame, a water pump inner board and a water pump side board are arranged on the upper portion, one side and rear side of the water pump separately; a first water pipe and a second water pipe are arranged on the two sides of the water pump separately; the first water pipe is connected with a bend; the second water pipe is connected with a filter; a handle is arranged on the outer side of the water pump upper cover; a power source switch is arranged on the inner side of the water pump upper cover and located above the connection frame; part of the power source switch protrudes out of the water pump upper cover; a battery is arranged on the inner side of the water pump lower cover; and the water pump inner board is fixed to the inner side of the water pump upper cover to separate the battery from the power source switch. The connection frame, the water pump inner board and the water pump side board are arranged on the upper side, one side and rear side of the water pump separately, and the battery, the power source switch and the water pump are spaced with one another, so that mutual interference affecting working of the water pump is reduced. The battery is arranged inside the water pump side board and cannot be seen from the appearance, so that attractiveness is achieved, and the battery is also protected.

The invention provides an under-voltage protection circuit and a protection method. A battery pack charges a battery management system through a switching power supply; when the battery pack voltage is less than a first threshold, the battery management system and the switching power supply are powered off. When the battery has a power shortage risk, all power consumption loops can be cut off in time, and the battery is protected.

The invention pertains to the field of power battery technology, in particular to a power battery safety head cover, comprising a cover plate, a positive pole, a negative pole, a pressure release valve and a filling hole, wherein the positive pole, the negative pole, the pressure release valve and the filling hole are arranged on the cover plate, the positive pole is electrically connected with the cover plate, the negative pole is assembled with the cover plate in an insulating way, and the negative pole is connected with a negative temperature coefficient thermistor.

The invention provides a button cell structure. The button cell structure comprises a metal shell, a roll core accommodated in the metal shell, a supporting metal structure arranged on the upper surface of the roll core and a metal cover body arranged on the metal shell, wherein the metal shell is of a hollow cylindrical structure with an opening in one end, an inner cavity of the metal shell is an accommodating cavity used for accommodating the roll core and electrolyte, the supporting metal structure comprises a supporting metal shell electrically connected with the roll core and an FPC piece arranged on the supporting metal shell, and an installation groove used for installing the FPC piece is formed in the supporting metal shell in a concave mode. According to the button cell structure provided by the invention, the space can be fully utilized to improve the capacity of the cell, the FPC can balance a magnetic field generated when the cell works, the occurrence of bottom noise is reduced, even the bottom noise is not generated, and when the current exceeds a safety range, a circuit for FPC protection is disconnected, so that the cell can be protected, and safety risks such as cell leakage, fire or explosion are prevented.