487results about "End cell switching arrangements" patented technology

An auxiliary battery for portable devices that can be used for a variety of applications with high power capacity. The auxiliary battery includes a power input section for receiving electric power from an external power source, a power storage section having a secondary battery for receiving a charge current from the power input section, a power output section having one or more output terminals for producing electric power at output terminals, and an power switch circuit for selectively inputting electric power to the power output section either from the power input section or from the power storage section.

The present disclosure includes a protective sleeve assembly and a battery module, wherein the protective sleeve assembly includes a frame and a terminal fixing plate, a terminal circuit board and a connector port are arranged on the terminal fixing plate, an end of a conduction sheet is connected to the terminal circuit board, the other end of the conduction sheet is in a limiting hole of the terminal fixing plate; the battery module includes a upper cover, a lower cover and a charge-discharge control circuit board, a conduction electrode is arranged on the charge-discharge control circuit board and connected with a battery. When the mobile phone is fixed with the protective sleeve assembly, a special port of the mobile phone is transformed into a general port by the conversion circuit of the terminal circuit board, so it's easy to charge the mobile phone by the general port.

Provided are an intelligent, environmentally friendly and energy saving cell power supply system and method. The system comprises a temperature detection unit used for detecting the temperatures of the ambient environment where a cell set is located; a cell management system used for cell physical parameter detection, cell state estimation and cell charge and discharge control, and providing cell state information for a power switching control unit; a cell set used for providing energy; and the power switching control unit for receiving temperature and cell state information, performing logic analysis and realizing cell set switching. The system can accurately switch a cell set according to monitored environment temperatures, cell state information provided by the cell management system and power demands, and make full advantages of operating characteristics of two cell sets, thereby increasing the cell utilization efficiency and service life, and reaching the effects of energy conservation and environment protection.

The present disclosure includes a protective sleeve assembly and a battery module, wherein the protective sleeve assembly includes a frame and a terminal fixing plate, a terminal circuit board and a connector port are arranged on the terminal fixing plate, an end of a conduction sheet is connected to the terminal circuit board, the other end of the conduction sheet is in a limiting hole of the terminal fixing plate; the battery module includes a upper cover, a lower cover and a charge-discharge control circuit board, a conduction electrode is arranged on the charge-discharge control circuit board and connected with a battery. When the mobile phone is fixed with the protective sleeve assembly, a special port of the mobile phone is transformed into a general port by the conversion circuit of the terminal circuit board, so it's easy to charge the mobile phone by the general port.

The present invention discloses a mobile terminal dual-battery control device and method. The dual-battery control device is connected with a main battery and a secondary cell and comprises a main battery detection module, a secondary battery detection module, an enabled module and a control switching module. The main battery detection module detects the size of the main battery voltage and output the first detection signals corresponding to the level. The secondary cell detection module detects the size of the secondary cell voltage and outputs the second detection signals corresponding to the level. The enabled module outputs outage signals according to the input instruction. The main battery supplies power when the control switching module determines that the main battery has electricity supply according to the high-low level of the first detection signals and the second detection signals, the secondary cell supplies power when the control switching module determines that the main battery has no electricity supply and the secondary cell has the electricity supply, so that the man battery power supply is automatically switched to the secondary cell power supply when the main battery has no electricity supply, and the main battery can be replaced in the turn-on state. When the secondary cell supplies power, the mobile terminal can be restarted according to the outage signals to solve the problems of crashing of the mobile terminal or system faults.

The invention discloses electronic equipment, and the electronic equipment comprises a first battery; a second battery; a power circuit which can receive the input of an external power supply, can use the input to supply power to electronic equipment, and can charging the first and second batteries; a charging and discharging control circuit which is connected with the power circuit, the first and second batteries, and a charging and discharging switching circuit, is used for detecting the parameters of the first and second batteries, is used for receiving a signal from the power circuit so as to judge whether there is an external power supply connected with the electronic equipment or not, and is used for generating a corresponding switching operation signal based on the judgment results and detected parameters and transmitting the switching operation signal to the charging and discharging switching circuit; and the charging and discharging switching circuit which is connected between the output end of the power circuit and the first and second batteries, and is used for switching the charging and discharging states of the first and second batteries according to the switching operation signal.

The invention discloses a circuit and method for power supply of an electronic device and the electronic device. The circuit comprises a voltage monitoring circuit, a control circuit, an auxiliary power supply circuit and a main power supply circuit comprising a battery. The auxiliary power supply circuit is used for collecting energy and converting the energy into electric energy and storing the electric energy; the voltage monitoring circuit is used for monitoring voltage of the auxiliary power supply circuit, sending first notification signals to the control circuit when voltage of the auxiliary power supply circuit reaches a first preset value, and sending second notification signals to the control circuit when voltage of the auxiliary power supply circuit is lower than a second preset value, wherein the first preset value is larger than the second preset value; and the control circuit is used for converting a working power supply circuit of the electronic device into the auxiliary power supply circuit when receiving the first notification signals, and switching the working power supply circuit of the electronic device into the main power supply circuit when receiving the second notification signals. According to the technical scheme, endurance working time of the electronic device can be prolonged to the largest extent, and accordingly user experience is improved.

For providing a reliable voltage adjusting apparatus in low cost, a low-voltage control apparatus controls a high-voltage power supply circuit to be switched power off by transmitting a power-off signal through a second communication line arranged between the high-voltage power supply circuit and itself through an isolation unit when an information signal from an equalizing apparatus is not transmitted within a predetermined first malfunction judging period. The equalizing apparatus stops an equalizing process in itself when the information signal from the low-voltage control unit

The invention provides a smart double-battery system. The smart double-battery system comprises a charging unit, a power source management unit, a main battery, an auxiliary battery, a double-battery management unit, an application processor, a first precision resistor and a second precision resistor. The charging unit is connected with the power source management unit and is also connected with the double-battery management unit through the first precision resistor. The power source management unit comprises a lithium battery. One end of the main battery is connected with the double-battery management unit and the application processor. One end of the auxiliary battery is connected with the double-battery management unit and the application processor. The other end of the main battery is connected with one end of the auxiliary battery and then is connected with the ground terminal of the power source management unit through the second precision resistor. The application processor is connected with the double-battery management unit and the power source management unit. The invention further relates to a switching over and charging method of the double batteries. The smart double-battery system and the switching over and charging method of the double batteries have the advantages that the batteries are switched over accurately and the utilization rate of the batteries is improved.

The invention relates to the field of electric vehicle equipment, in particular to a battery pack switching control device and method for an electric vehicle. In order to solve the problems existing in the prior art, the switching control device and method are provided. When a BMS detects that one of battery packs is not suitable for supplying power to the electric vehicle, a switching command is sent to a contactor control unit through a PCU, at the moment, the first battery pack and the second battery pack are controlled to be connected and disconnected through turn-on and turn-off of two main negative contactors, and the two battery packs alternately work independently. The device comprises the first battery pack, the second battery pack, the BMS, the PCU and the contactor control unit. When the contactor control unit receives the command of the PCU, the first battery pack or the second battery pack is connected, and the first battery pack or the second battery pack is connected with a power use device; and when the switching command of the PCU is received, the first battery pack and the second battery pack are controlled to be switched to each other.

The invention relates to an automatic battery pack charging-discharging management device. A battery pack consists of a plurality of single batteries in serial connection, wherein at least one single battery is backed up in the battery pack, each single battery including the backup single battery is independently connected with an auxiliary controller, and all auxiliary controllers are connected with one another through signals; and the working method of the device comprises the steps of a, calculating a charging capacity and a discharging capacity of each single battery; b, sequentially connecting the single batteries with sufficient quantity in serial to form a discharging battery pack according to the increasing sequence of the discharging capacity, and adopting the residual single batteries as backup; and c, utilizing the backup single batteries to substitute the single batteries which are completely discharged so as to discharge. The automatic battery pack charging-discharging management device and the working method thereof have beneficial effects that the reliability of the entire system can be improved, the resource can be saved, and the environment pollution can be reduced.

According to one embodiment, the first power supply circuit of a main unit includes a first recharging controller which sets a first battery at a first voltage, and is powered by a second voltage applied by an AC adaptor and higher than the first voltage, and first system power supply which is powered by the AC adaptor or first battery, and applies a third voltage lower than the first voltage. The second power supply circuit of an auxiliary unit includes a second recharging controller and second system power supply. The second recharging controller sets a second battery at a fourth voltage applied by the first system power supply and lower than the third voltage, and is powered by the third voltage when the auxiliary unit is attached to the main unit. The second system power supply is powered by the first system power supply or second battery.

The invention relates to a method and device for controlling the charging of a terminal device. The method includes the steps of determining whether a first charging chip currently charging a battery needs to be switched to a second charging chip waiting for charging the battery or not when the battery of the terminal device is charged, and if it is determined that the first charging chip needs to be switched to the second charging chip, controlling the first charging chip to stop charging the battery and starting the second charging chip to charge the battery. According to the technical scheme, the first charging chip can be switched to the second charging chip for charging the battery when the first charging chip does not produce a lot of heat yet, and it is avoided that the first charging chip produces a lot of heat when the charging time is too long; the second charging chip continues to charge the battery, and therefore the charging current of the second charging chip does not need to be reduced, and the charging efficiency of the charging chips is improved.

The invention relates to an energy-storage power supply system and an energy-storage power supply method. The real-time voltage value and the real-time current value of each single battery in use and the conversion time of the real-time voltage value from a first threshold to a second threshold are acquired; the actual capacity value of each single battery in use is worked out based on the real-time voltage value, the real-time current value and the conversion time; the actual capacity value and a preset capacity value are compared so as to judge whether the capacity of each single battery in use decreases and whether the capacity meets the working standard; and further the power supply status of a main battery module and the power supply status of a spare battery module are controlled. Thus, that the original voltage parameter is not subject to change is ensured, overall replacement of the batteries or the power supply system is not needed, and the working life of the whole battery pack can be prolonged effectively.

The invention provides an automatic switching method of a battery pack. The automatic switching method of the battery pack relates to a plurality of battery modules, each battery module comprises a battery management system and a switch, and battery units are connected with a circuit bus through the switches. The battery management systems of all the battery modules are connected mutually through data buses, and each battery management system comprises a data collection module collecting battery module information, a data comparison module and a control module. Preset values are set in the data comparison modules, the battery module information collected by the data collection modules is compared with the set preset values, and the control modules control switching off or switching on of the switches according to information of the data comparison modules. After the scheme is adopted, on the premise that a control system of an electric vehicle is not changed, the battery modules are used to supply power jointly, the requirement for consistency among all the modules does not exist, compatibility of the battery pack is improved, and meanwhile, the automatic switching method of the battery pack can avoid overcharging or over-discharging of the battery pack, prolong service life and save costs.

The present invention puts forward a smart lock and a power supply system thereof. The power supply system can supply power through two modes. One mode is characterized in that electric energy is stored on a capacitor C2 after being generated through a hand-operated power generation apparatus and via an energy conversion unit, so as to supply power to a subsequent load. The other mode is characterized in that a power supply control unit selects one pack from battery packs for supplying power to a load by controlling transistor switches Q1 and Q2. When a voltage outputted by the power generation apparatus is higher than a certain threshold value, the power supply system automatically gives priority in use of the electric energy provided by the power generation apparatus. According to the smart lock, a traditional keyboard system is changed into a two-key keyboard system, so that passwords can be entered conveniently in a dark environment without an illumination circuit, thereby greatly reducing power consumption. Through adoption of the smart lock and the power supply system in the present invention, power supply efficiency is improved, power supply time is prolonged, and the system can still continue working through the power generation apparatus in the case that the smart lock is completely out of power, thus the biggest usage inconvenience problem of an electronic smart lock is solved, and the practical value of the smart lock is greatly improved.

One embodiment of the present invention provides a dual-battery power supply circuit. The dual-battery power supply circuit comprises a primary battery, a backup battery, a switch module, a PMOS tube and a resistor. The positive electrode of the primary battery is connected with the power supply terminal of a mobile terminal. The negative electrode of the primary battery is connected with a common ground. The negative terminal of the mobile terminal is connected with the common ground. The positive electrode of the backup battery is connected with the source electrode of the PMOS tube, and is connected with the grid electrode of the PMOS tube via the resistor. The negative electrode of the backup battery is connected with the common ground. The drain electrode of the PMOS tube is connected with the power supply terminal of the mobile terminal. One end of the switch module is connected with the grid electrode of the PMOS tube, and the other end of the switch module is connected with the common ground. When the primary battery does not supply the power, the switch module is switched on. When the primary battery supplies the power, the switch module is switched off. According to the embodiments of the present invention, the power-off problem of the mobile terminal during the battery replacement process of the power supply circuit in the prior art can be solved.

The embodiment of the invention provides a terminal and a dual-battery power supply method thereof. The method comprises the following steps: detecting an electric quantity difference between a first battery and a second battery; if it is detected that the electric quantity difference is larger than a first threshold or smaller than a second threshold, adjusting power supply statuses of the first battery and the second battery, so that the electric quantity difference is within a preset range; and returning to the operation of detecting the electric quantity difference between the first battery and the second battery. The terminal and the method provided by the embodiment of the invention have the advantages that the electricity quantity difference between the two batteries of the terminal is detected, and when the electric quantity difference is larger than the first threshold or smaller than the second threshold, the power supply statuses of the two batteries are adjusted to maintain a balance between electricity quantities of the two batteries, so that the electricity quantity utilization rates of the batteries can be effectively improved, and normal operation of various power-consuming modules in the terminal can be guaranteed.

The embodiment of the invention provides a bluetooth earphone with continuous power supply, and belongs to the technical field of electronic products. The bluetooth earphone is connected with a first battery, the first battery is arranged at the outer side of the bluetooth earphone, the bluetooth earphone comprises a bluetooth master control circuit, an electronic switch circuit, a second battery, and a power supply interface, the second battery is embedded into the bluetooth earphone, the power supply interface is used for being connected with a power supply, the power supply interface and the electronic switch circuit are connected with the bluetooth master control circuit, the power supply interface, the first battery, and the second battery are connected with the electronic switch circuit, and the electronic switch circuit is used for automatically selecting the first battery, the second battery, or the power supply to provide electric energy to the bluetooth master control circuit. According to the bluetooth earphone, electric energy supply of the bluetooth earphone can be effectively guaranteed.

The invention relates to a large power automatic switching type vehicle starting power supply which belongs to the technical field of power supplies. The vehicle starting power supply comprises a power supply housing, a storage battery and a master control circuit board. The master control circuit board comprises an MCU (Micro controller unit), an LCD display module, a press key control module, a power charging control module, an external output module and a vehicle starting module. The LCD display module, the press key control module, the power charging control module, the external output module and the vehicle starting module are all electrically connected with the MCU control module. The MCU is further electrically connected with a low temperature heating module and a high temperature warning module. The vehicle starting module comprises a 12V output unit, a 24V output unit, an automatic detection unit for voltage, an LED indication control unit, an automatic switching unit for voltage, an auxiliary converting unit for voltage and a forced switching unit for voltage. The vehicle starting power supply is suitable to start different vehicles and when used, the power supply automatically detects the voltage of a vehicle storage battery and automatically switches to a corresponding voltage gear according to the voltage of a storage battery required to start a vehicle. In this manner, overall intelligent switching control can be achieved and when a storage battery is damaged or removed, people can manually operate to switch different voltage gears in a forced manner.

A power tool system (1) includes a first power tool (10A1) having a first power tool rated voltage, a second power tool (10A2, 10A3, 10B) having a second power tool rated voltage that is different from the first power tool rated voltage, and a first battery pack (20A4) coupleable to the first power tool (10A1) and to the second power tool (10A2, 10A3, 10B). The first battery pack (20A4) is switchable between a first configuration having a first battery pack rated voltage that corresponds to the first power tool rated voltage such that the first battery pack enables operation of the first power tool (10A1), and a second configuration having a convertible battery pack rated voltage that corresponds to the second power tool rated voltage (10A2) such that the battery pack enables operation of the second power tool (10A2, 10A3, 10B).

The invention relates to a fast switching type power battery group which comprises a power bus and single batteries, and a controllable switch. The single batteries are divided into N groups. Each group of single batteries is connected with the power bus, and each group of single batteries comprises M single batteries. M single batteries in each group of single batteries are connected in series in order. N is an integer greater than or equal to 2, and M is an integer greater than 1. The controllable switch is respectively connected with the N groups of single batteries for carrying out switching control on the configuration of the N groups of single batteries, wherein the configuration of the N groups of single batteries comprises serial configuration and parallel configuration. The power battery group can switch between serial configuration and parallel configuration, thus the charging current is effectively reduced, the energy consumption is reduced, the efficiency is improved and the safety is enhanced.

A battery control unit includes a plurality of switching units, a control unit, a charger configured to charge batteries, and a charging control unit. The plurality of switching units is respectively provided for a plurality of batteries connected in series, and are configured to switch between a connected state and a non-connected state. The connected state is a state that a corresponding battery is connected in series with other batteries and the non-connected state is a state that the corresponding battery is disconnected from a series connection with the other batteries. The control unit is configured to determine whether each voltage of the plurality of batteries reaches a charge end voltage during charging, and to control the switching unit corresponding to the battery which is determined to reach the charge end voltage to switch to the non-connected state.

The invention discloses a cell combiner and a DC power system therewith. The cell combiner comprises a control unit which is used for communication with DC power equipment, and controlling the on / off of a main connection unit and a bypass unit according to the demands of DC power equipment; the main connection unit which is used for the connection or disconnection of the parallel connection with the DC power equipment according to the indication of the control unit; and the bypass unit which is in parallel connection with two ends of the main connection unit, and is used for the disconnection of the main connection unit during the switching of a battery pack and starting the discharging of the DC power equipment, wherein the DC power equipment or the battery pack does not charge the battery pack. Through the above technical scheme of the invention, the cell combiner communicates with the DC power equipment, thereby achieving the independent management of each battery pack, achieving the effective maintenance and protection of the battery packs, prolonging the service life of the battery pack, and effectively preventing voltage from impacting on the battery pack in a switching process of the battery packs.

The invention provides an analog double-cell management method and a corresponding management circuit. The management circuit comprises a plurality of power supply modules, an output end, a selective control unit, a plurality of feedback units and an isolation unit, wherein each power supply module comprises an input end, an output end and a control end, and the input end is connected with cells; and the power supply modules, the selective control unit, the plurality of the feedback units and the isolation unit are achieved through analog circuits. The analog double-cell management method and the circuit thereof have the advantages that selection management of power supply of two cells in double-cell power supply equipment is achieved through the analog circuits, compared with the existing double-cell management technology achieved by digital circuits, response time is shorter, the rated current is larger, and the application of double-cell power supply equipment which has high requirement for response time and / or control current becomes possible.

The invention discloses a main power supply storage battery grouping type independent power supply and charging system of an electric ship. Main power supply storage batteries are divided into n groups 1G-nG; the output ends of the storage battery groups are subjected to short circuit protection through fuses and then are connected with respective segmented busbars; the segmented busbars are usedfor mutual backup; each storage battery group is configured with a charger and is provided with n main switches 1Q-nQ; each segmented busbar is connected with the wire inlet end of one main switch; and the wire outlet ends of the main switches 1Q-nQ are connected to a direct-current busbar. According to the system, an existing method for parallel power supply of multiple storage battery groups based on a DC / DC converter is replaced with independent power supply of the grouped main power supply storage batteries of the electric ship, so that the technical problem that the multiple storage battery groups are directly connected in parallel to form a circulating current is solved; and the grouped storage batteries are simultaneously and independently charged, so that the problem that the charging power is excessively high in the prior art is solved, and the technical problem that the charging time is excessively long due to the fact that the multiple storage batteries are charged in sequence is solved.

The invention relates to an alcohol-hydrogen-electricity hybrid power system and an application thereof. The alcohol-hydrogen-electricity hybrid power system is a device for thermally cracking alcohol into hydrogen to propel an engine, wherein the specific structure is that a thermal cracking device is installed in a tail gas tube of the engine, a raw material box is internally filled with the water mixed solution of alcohol, the water mixed solution of alcohol is conveyed into the thermal cracking device through a conveying pump, alcohol is cracked into hydrogen by the thermal cracking device, hydrogen enters the engine via an outlet of the thermal cracking device and is combusted to propel a cylinder to work, an output power drives a power generator to generate power, the electric energy generated by the power generator is stored in a storage battery by a central controller, then the central controller controls to provide the electric energy to the needed motor, and the motor propels a vehicle to run or propels a power machine to work. The system disclosed by the invention is convenient to operate, high in intelligent degree, and capable of improving solar power and ensuring the long-time stable working of the device. The system can be installed on an automobile, and can also be installed on an alcohol-hydrogen power generation station or a hydrogen-rich gas filling station; and the present waste gas pollution of coal and petroleum power generation, and gasoline vehicles is reduced.