WO2015101284A1 - 电池包、充电组合、电动工具以及断线检测方法 - Google Patents
电池包、充电组合、电动工具以及断线检测方法 Download PDFInfo
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- WO2015101284A1 WO2015101284A1 PCT/CN2014/095537 CN2014095537W WO2015101284A1 WO 2015101284 A1 WO2015101284 A1 WO 2015101284A1 CN 2014095537 W CN2014095537 W CN 2014095537W WO 2015101284 A1 WO2015101284 A1 WO 2015101284A1
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- battery pack
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- 238000001514 detection method Methods 0.000 title claims abstract description 94
- 238000007600 charging Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 claims description 24
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Classifications
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- H02J7/0026—
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
- H02J7/007184—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage in response to battery voltage gradient
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a battery pack, and more particularly to a battery pack, a charging assembly, a power tool, and a disconnection detecting method.
- an object of the present invention is to provide a battery pack having an output voltage of at least 56 V and a charging assembly and a power tool including the battery pack, which are both tested by the battery pack to ensure the use of the battery pack. Safety.
- One or more series units that are connected in series with each other;
- a voltage detecting module for respectively detecting voltage signals of the high voltage terminals of the plurality of series units
- a battery pack control module configured to receive a voltage signal detected by the voltage detecting module and calculate a voltage value of the serial unit
- the series unit comprises more than two cells, and a plurality of cells in one series unit are connected in parallel;
- the battery pack control module can determine whether there is a disconnected battery cell in the series unit according to the voltage value of the series unit.
- the battery pack control module includes:
- the disconnection detecting module can determine whether there is a disconnected battery cell in the series unit according to the relative relationship between the voltage value and the time of the series unit.
- the disconnection detection module includes:
- timing unit for providing time data
- a slope calculation unit for calculating a slope value of a voltage value of the series unit with respect to time
- a judging unit configured to determine, according to the slope value of the series unit, whether there is a disconnected cell in the series unit.
- the battery pack control module includes:
- the disconnection detecting module can determine whether there is a disconnected battery cell in the series unit according to calculating the internal resistance value of the series unit.
- the disconnection detection module includes:
- a current detecting unit configured to detect a current value of the serial unit
- An internal resistance calculation unit configured to calculate an internal resistance value of the series unit according to the voltage value and the current value of the series unit
- the determining unit is configured to determine, according to the internal resistance value of the series unit, whether there is a disconnected battery cell in the series unit.
- the present invention also provides a battery pack having an output voltage of at least 56V, which includes:
- One or more series units that are connected in series with each other;
- a voltage detecting module for respectively detecting voltage signals of the high voltage terminals of the plurality of series units
- a battery pack control module configured to receive a voltage signal detected by the voltage detecting module and calculate a voltage value of the serial unit
- the series unit comprises more than two cells, and a plurality of cells in a series unit are connected in parallel;
- the battery pack also includes:
- the disconnection detecting module can determine whether there is a disconnected battery cell in the series unit according to the voltage value of the series unit.
- the disconnection detection module includes:
- timing unit for providing time data
- a slope calculation unit for calculating a slope value of a voltage value of the series unit with respect to time
- a judging unit configured to determine, according to the slope value of the series unit, whether there is a disconnected cell in the series unit.
- the disconnection detection module includes:
- a current detecting unit configured to detect a current value of the serial unit
- An internal resistance calculation unit for calculating an internal resistance of the series unit according to the voltage value and the current value of the series unit Value
- the determining unit is configured to determine, according to the internal resistance value of the series unit, whether there is a disconnected battery cell in the series unit.
- the invention also proposes a charging combination comprising a battery pack and a charger charger for charging the same,
- the battery pack includes: one or more series units that are connected in series with each other;
- the series unit includes two or more cells, and a plurality of cells in one series unit are connected in parallel;
- the charging combination also includes:
- a voltage detecting module configured to respectively detect voltage signals of the high voltage terminals of the plurality of series units
- a battery pack control module configured to receive a voltage signal detected by the voltage detecting module and calculate a voltage value of the serial unit
- the disconnection detecting module can determine whether there is a disconnected battery cell in the series unit according to the voltage value of the series unit.
- the invention also provides a power tool comprising an electric device and a battery pack, wherein the battery pack can supply power to the electric device, the battery pack comprises one or more series units connected in series with each other; the series unit comprises more than two batteries. a plurality of cells in a series unit are connected in parallel;
- Power tools and also include:
- a voltage detecting module configured to respectively detect voltage signals of the high voltage terminals of the plurality of series units
- a battery pack control module configured to receive a voltage signal detected by the voltage detecting module and calculate a voltage value of the serial unit
- the disconnection detecting module can determine whether there is a disconnected battery cell in the series unit according to the voltage value of the series unit.
- the present invention also provides a disconnection detecting method for detecting whether a line between cells connected in parallel in a battery pack is disconnected, and the battery pack includes one or more series units connected in series with each other, and the series combination includes two or more parallel connections.
- detection methods include:
- Whether or not there is a disconnected cell in the series unit is determined based on the slope value of the series combination.
- the present invention also provides a disconnection detecting method for detecting whether a line between cells connected in parallel in a battery pack is disconnected, and the battery pack includes one or more series units connected in series with each other, and the series combination includes Two or more batteries in parallel; detection methods include:
- the present invention also provides a battery pack having an output voltage of at least 56V, which includes:
- One or more series units that are connected in series with each other;
- a voltage detecting module configured to respectively detect voltage signals of the high voltage terminals of the plurality of series units
- a battery pack control module configured to receive a voltage signal detected by the voltage detecting module and calculate a voltage value of the serial unit
- the series unit comprises more than one battery core, and a plurality of battery cells in one series unit are connected in parallel; the voltage detecting module and the battery core group form an electrical connection.
- the voltage detection module includes:
- a detection circuit one end connected to the high voltage end of the series unit and the other end connected to the battery pack control module;
- the battery pack control module detects the voltage signals of the high voltage terminals of the plurality of series units by using a plurality of detecting circuits.
- the voltage detecting module further includes:
- a time sharing module for controlling at least two detection circuits
- the battery pack control module controls the plurality of detection circuits to be turned on and off by the time sharing module.
- the battery pack control module includes:
- a first MCU unit configured to receive a voltage signal of a portion of the detection circuit
- a second MCU unit for receiving a voltage signal of another portion of the detecting circuit
- the voltage detection module includes:
- a first time sharing module configured to control the voltage signal to be sent to the plurality of detection circuits of the first MCU unit for time-sharing
- a second time sharing module configured to control the voltage signal to be sent to the plurality of detection circuits of the second MCU unit for time-sharing
- the first MCU unit controls the first time sharing module
- the second MCU unit controls the second time sharing module
- the second MCU unit can transmit data to the first MCU unit.
- the detection circuit that transmits the voltage signal to the first MCU unit is respectively connected to the adjacent one The high voltage terminal of the series unit; the detection circuit that transmits the voltage signal to the second MCU unit is connected to the high voltage terminal of the adjacent series unit, respectively.
- the number of detection circuits controlled by the first MCU unit is equal to the number of detection circuits controlled by the second MCU unit.
- the detection circuit includes:
- the switching element can be controlled by the time sharing module to turn the detection circuit on or off;
- the switching elements include:
- control end configured to receive a signal of the time sharing module and control whether the two connection ends are turned on or off;
- the two connections include:
- the output is connected to the battery pack control module.
- the detecting circuit comprises: a voltage dividing resistor, which can stabilize the voltage signal received by the main control within a preset range.
- the invention is beneficial in that a battery pack having an output voltage of at least 56 V and a charging assembly and a power tool including the battery pack are provided, which are both ensured during charging and discharging by detecting the battery pack. safety.
- Figure 1 is a schematic block diagram of a preferred embodiment of the battery pack of the present invention.
- Figure 2 is a schematic block diagram of a preferred embodiment of the battery pack of the present invention for implementing a voltage detecting portion
- FIG. 3 is a schematic block diagram of another preferred embodiment of the battery pack of the present invention for implementing a voltage detecting portion
- Figure 4 is a schematic block diagram of a preferred embodiment of the charger of the present invention.
- FIG. 5 is a schematic block diagram of a preferred embodiment of the charging assembly of the present invention.
- Figure 6 is a schematic diagram of a series unit interrupt line
- Figure 7 is a logic block diagram showing specific steps of the battery pack detecting method of the present invention.
- Figure 8 is a schematic block diagram of a preferred embodiment of a powered device in a power tool of the present invention.
- the battery pack 100 mainly includes a battery pack 11, a terminal module 12, a temperature module 13, a voltage detecting module 14, a battery pack communication module 15, and a battery pack control module 16 that controls them.
- the battery pack 11 includes: one or more series units 111. When the number of the series units 111 is 2 or more, the different series units 111 are connected in series, and the whole of them constitutes the battery group 11.
- One series unit 111 includes: one or more cells 111a. When the number of the cells 111a in the same series unit 111 is larger than 2, the different cells 111a are connected in parallel to form a series unit 111.
- one series unit 111 includes two parallel cells 111a.
- the terminal module 12 and the battery pack 11 and the battery pack control module 16 respectively constitute an electrical connection, and are provided with a battery pack positive terminal B+ and a battery pack negative terminal B- for connecting with the outside to realize electric energy or signal transmission.
- the terminal module 12 When the battery pack 100 is being charged, the terminal module 12 enables the battery cells 111a in the battery pack 11 to be in a state of charge, while also providing power to other modules and components inside the battery pack 100.
- the temperature module 13 includes a temperature measuring element 131 and a temperature signal module 132, wherein the temperature measuring element 131 is used to detect the internal temperature of the battery pack 100.
- the temperature measuring element 131 is disposed inside the battery pack 100. Specifically, the temperature measuring element 131 is disposed at a position in the battery pack 100 close to the battery core 111a so as to be able to detect a change in the temperature of the battery cell 111a. As a preferred solution, the temperature measuring element 131 can employ a thermistor, especially an NTC thermistor.
- the temperature signal module 132 is electrically connected to the temperature measuring component 131 and the battery pack control module 16, respectively, which can feed back the detection result of the temperature measuring component 131 to the battery pack control module 16 and be controlled by the battery pack control module 16.
- the temperature signal module 132 is provided with a battery pack temperature terminal T for electrical connection with an external temperature terminal.
- the voltage detecting module 14 is configured to detect voltage values of the respective series units 111 in the battery pack 11, and the voltage detecting module 14 is electrically connected to the battery pack 11 and the battery pack control module 16, respectively.
- the voltage detecting module 14 detects the voltage signal in the battery pack 11 and transmits the voltage signal to the battery pack control module 16.
- the battery pack control module 16 calculates a voltage value according to the voltage signal transmitted by the voltage detecting module 14 to implement the battery pack 100. Voltage safety monitoring.
- the battery pack communication module 15 is used to implement data or signal exchange, and the battery pack control module 16 Form an electrical connection.
- the battery pack communication module 15 can implement data transmission by using a hardware connection or a wireless connection.
- the battery pack 100 Since the battery pack 100 has a high voltage and output power, the reliability of the communication connection is required when connected to a charger, a power device, or the like.
- the battery pack communication module 15 implements data transfer by means of hardware connection.
- the battery pack communication module 15 is provided with a battery pack communication terminal D.
- the battery pack communication terminal D can be physically connected to a corresponding terminal of the charger and the electric device.
- the battery pack control module 16 is mainly used to implement functions such as logic operation and process control, and can control various components and modules in the battery pack 100 to ensure the safety of the battery pack 100 during charging and discharging.
- the battery pack 100 further includes a battery pack power display module (not shown) electrically connected to the battery pack control module 16 for displaying the remaining power in the battery pack 100.
- the battery pack 100 has an output voltage of at least 56 V.
- the output voltage referred to herein refers to the ability of the battery pack 100 to have an output voltage when it is fully charged. Generally, as the discharge process progresses, the voltage output from the battery pack 100 The ability will decline.
- the "battery pack 100 having an output voltage of at least 56 V" as referred to herein does not exclude the case where the battery pack 100 reduces the output voltage by an internal circuit when necessary, and the "battery pack 100 has an output voltage of at least 56 V" means only the battery.
- the package 100 has the ability to output a voltage of 56V.
- the power capacity of the battery pack 100 is greater than 100 Wh.
- the battery pack 100 includes 14 series units 111, each of which includes one or two batteries 111a, each of which has a nominal voltage of 4V.
- the cell group 11 thus constructed has at least a total voltage of 56 V when each of the cells 111a is at a nominal voltage.
- the voltage detecting module 14 in the battery pack 100 will be mainly described below.
- the voltage detecting module 14 is configured to detect the voltage signal of the high voltage terminal of the series unit 111, respectively.
- the voltage detection module 14 includes a detection circuit 143.
- the other end of the detection circuit 143 is connected to the high voltage end of the series unit 111 and is connected to the battery pack control module 16.
- the module 14 is provided with a plurality of detection circuits 143.
- the battery pack control module 16 If the battery pack control module 16 is simultaneously subjected to voltage signals from a plurality of detection circuits 143, the battery pack control module 16 needs to be provided with at least one microprocessor having a plurality of signal interfaces or a plurality of microprocessors.
- the processor is required to be high, and the number of signal interfaces of the microprocessor must correspond to the number of detection circuits 143 to be accessed, and the adaptability is poor; using the latter scheme undoubtedly increases the cost and The space occupied.
- a microprocessor typically has an interface for voltage signals, but microprocessors tend to have higher processing rates.
- the voltage detection module 14 of the present invention further includes a time sharing module 146.
- the function of the time sharing module 146 is to control the detection circuit 143, which can at least control the detection circuit 143 to be disconnected at both ends or to be turned on at both ends.
- a plurality of detection circuits 143 are connected and then connected to the battery pack control module 16 through the same line.
- a plurality of detecting circuits 143 connected together serve as a detecting group 141,
- the plurality of detection circuits 143 in one detection group 141 transmit the collected voltage signals to the battery pack control module 16 through the same bus under the control of the same time sharing module 146.
- the battery pack control module 16 causes the plurality of detecting circuits 143 to be turned on in time by controlling the time sharing module 146. This is equivalent to the battery pack control module 16 receiving only the voltage signal of one of the detection circuits 143 at a time, so that only one microprocessor having a single signal interface is required. Moreover, the time sharing module 146 and the detection circuit 143 as peripheral circuits of the battery pack control module 16 can be specifically set according to the number of the series units 111 without having to configure different microprocessors because the number of the series units 111 is different.
- the time sharing module 146 is electrically connected to the battery pack control module 16, and the battery pack control module 16 can control the time sharing module 146 to indirectly control the time sharing of the plurality of detection circuits 143.
- the detecting circuit 143 includes an on-off element 144 including two connecting ends and a control end (not shown), wherein the two connecting ends are divided into: detecting end 144a connected to the series unit 111 And an output for connecting to the battery pack control module 16.
- the control terminal receives the signal of the time sharing module 146 and controls the two connection terminals of the switching element to be turned on or off.
- the switching element 144 in the detecting circuit 143 in the same detecting group 141 is finally Connect to the same location and connect to battery pack control module 16.
- the detecting circuit 143 further includes a voltage dividing resistor 145.
- the voltage dividing resistor 145 may be connected to the output terminal 144b side of the switching element 144 as shown in FIG. 2, or may be connected to the switching element. 144 detects the side of the terminal 144a.
- the time sharing module 146 causes all of the switching elements 144 in one detection group 141 to be turned on in time under the control of the battery pack control module 16, two connections of the switching element 144 of one detection circuit 143.
- the terminal is turned on, the two terminals of the switching element 144 of the remaining detecting circuit 143 are disconnected, and it is ensured that only one switching element 144 is turned on at a time in one detecting group 141.
- the time sharing module 146 can control the time during which the switching element 144 is turned on and the switching time interval between the different switching elements 144 by controlling the length of the signal sent to the control terminal of the switching element 144.
- the battery pack control module 16 controls the time sharing module 146 to sequentially turn on and off the switching element 144, and the switching starts from the detecting circuit 143 on the low voltage side (the right side in FIG. 2).
- the secondary switching causes the total voltage dividing resistor 142 to be connected in series with the different voltage dividing resistors 145 and to form a loop with a different number of series units 111.
- the battery pack control module 16 can calculate the maximum value by collecting the voltage value of the total voltage dividing resistor 142.
- the voltage value on the serial unit 111 on the right side (because the total voltage dividing resistor 142 and the voltage dividing resistor 145 are fixed values), after the detecting operation is completed, the battery pack control module 16 controls the time sharing module 146 to perform the switching operation.
- the rightmost switching element 144 is opened to turn on the second right switching element 144.
- the battery pack control module 16 calculates the rightmost and right second series unit 111 by collecting the voltage value on the total voltage dividing resistor 142 again. The sum of the voltages, and subtracting the voltage value of the rightmost series unit 111 previously measured, can be used to obtain the voltage value of the second series unit 111 on the right side.
- the switching elements 144 in the respective detecting circuits 143 are sequentially switched and corresponding calculations are performed, so that all the series units 111 can be monitored.
- the voltage value shared by the total voltage dividing resistor 142 is as constant as possible within a certain range, so that the input is controlled to the battery pack.
- the voltage signal on module 16 is relatively stable and does not cause unnecessary interference.
- the battery pack control module switching element 144 can be a triode, a field effect transistor, or the like.
- the battery pack 100 in order to achieve a higher output voltage and have a larger power capacity, it contains more series units 111.
- the microprocessor needs to have a higher clock frequency and processing capability, which undoubtedly increases the power consumption and the detection period is longer.
- the voltage detecting module 14 includes: a first detecting group 147 and a second detecting group 148
- the battery pack control module 16 includes: a first detecting group 147 and a second detecting group respectively 148 is a first MCU unit 161 and a second MCU unit 162 that are inspected and electrically connected thereto.
- the first detection group 147 detects adjacent plurality of series units, and the second detection group 148 detects additional adjacent series units.
- the detection circuits that transmit the voltage signals to the first MCU unit 161 are respectively connected to the adjacent series units; the detection circuits that transmit the voltage signals to the second MCU 162 units are respectively connected to the other adjacent series units.
- the first MCU unit 161 can use an MCU chip with a relatively high computing power and a high running clock frequency.
- the second MCU unit 162 can only implement detection and transmit the detection result to the first MCU unit 161 for processing. Therefore, it can adopt an MCU chip with a general computing capability, so that fast detection can be realized without causing the first MCU unit 161 mainly responsible for control to process too much data.
- the number of series units 111 is even, which are divided into two parts: a first detection section 112 and a second detection section 113 which can be detected by the first detection group 147 and the second detection group 148, respectively, the first detection
- the segment 112 and the second detecting segment 113 respectively comprise N/2 consecutive series units 111; the low voltage end of the battery group 11 is the low voltage end 112a of the first detecting segment 112, and the high voltage end of the battery group 11 is the second detecting segment.
- the high voltage end 113a of 113 is the low voltage end of the battery group 112 and the second detection group 148.
- the plurality of series units 111 are divided into two groups, and the first MCU unit 161 and the second MCU unit 162 respectively detect them. It should be noted that, for the first MCU unit 161 and the second MCU. For unit 162, when voltage acquisition is performed, the zero potential points of the respective MCU chips should be electrically connected to the lowest potentials 112a, 113b of the series unit 111 responsible for detection, respectively.
- the voltage detecting module and the battery pack control module as described above may be provided.
- the circuit described above is realized by the battery pack and the charger, the connection terminal of the battery pack and the electric device, and the internal circuit provided in the battery pack. Structure and detection capabilities.
- the charger 200 includes a rectifier module 21, a charger detection module 22, a charging module 23, a temperature control module 24, a charger communication module 25, and a charger control module 26 that controls them and is electrically connected thereto. .
- the rectifier module 21 is provided with power terminals L, N for connecting external power sources, which are used for accessing AC power as a source of energy for the charger, and the rectifier module 21 can convert the connected AC power into various parts of the charger 200.
- the electrical energy used, such as the rectifier module 21, converts the alternating current into direct current for use by the charger control module 26 and the charging module 23.
- the rectifier module 21 includes: an EMC circuit and an LLC circuit.
- the charger detection module 22 is electrically connected to the rectifier module 21 and the charging module 23 respectively.
- the rectifier module 21 of the charger detection module 22 can transmit power to the charging module 23 through the charger detection module 22 and simultaneously detect the power parameters of the charging module 23. Feedback is provided to the charger control module 26.
- the charging module 23 is provided with a charger positive electrode C+ and a charger negative electrode C- for outputting charging electrical energy. When charging, they can be connected to the battery pack positive terminal B+ and the battery pack negative terminal B- of the battery pack 100, respectively.
- the temperature control module 24 is electrically coupled to the charging module 23, which is capable of temperature sensing the charging module 23 and the battery pack 100 connected to the charger 200. Specifically, the temperature control module 24 is provided with a charger temperature terminal T'. When the battery pack positive terminal B+ of the battery pack 100 and the battery pack negative terminal B- are connected, the charger temperature terminal T' is also related to the battery pack temperature. The terminal T is connected, so that the temperature control module 24 can obtain the data or signal of the internal temperature of the battery pack 100 through the temperature measuring component 131 inside the battery pack 100, and then transmit the data or signal to the charger control module 26 for charger control. Module.
- the charger 200 further includes: a heat sink 27 electrically connected to the charger control module 26 and a charger power display module 28 for displaying that the battery pack 100 has been charged by the charger 200 How much electricity is full.
- the heat sink 27 is configured to forcibly dissipate the charger 200 or the battery pack 100 by the airflow when the temperature of the charger 200 is high or when the temperature of the battery pack 100 being charged is high.
- the heat sink 27 is preferably An electric fan comprising: a motor and a fan (neither shown in the figure), wherein the electric The machine drives the fan to rotate, and the charger control module 26 can adjust the rotational speed of the motor by adjusting the duty ratio of the drive motor, thereby controlling the intensity of heat dissipation.
- the fan in the charger 200 can also be indirectly controlled by the battery pack 100 by communication.
- the charger communication module 25 is provided with a charger communication terminal D'.
- the battery pack communication terminal D of the battery pack 100 is connected thereto, so that the charger control module 26 and the battery pack 100 in the charger 200 are connected.
- the battery pack control module 16 constitutes an interaction of data or signals.
- the charging assembly 300 as a preferred embodiment includes the battery pack 100 and the charger 200 described above.
- the charger 200 Since the charger 200 has a high output voltage, in order to ensure safety, it is required that the charger 200 does not output power when the battery pack 100 is not connected.
- the function of the charging protection is set in the charger 200.
- the charger 200 further includes: a charging protection module (not shown).
- the charging protection module is electrically connected to the charger temperature terminal T', and can detect whether the battery pack 100 has been connected to the battery pack 100 by detecting whether the charger temperature terminal T' has been connected to the battery pack temperature terminal T of the battery pack 100. If the battery pack 100 is not connected, the charging module 23 is controlled so that it does not output electric energy.
- the charging protection module determines whether the battery pack 100 is connected to the charger 200 by collecting the voltage value on the charger temperature terminal T'. This can be achieved by setting the battery pack temperature terminal T of the battery pack 100 to have a certain voltage. When the charger temperature terminal T' is not connected to the battery pack temperature terminal T, the charger temperature terminal T' is suspended, and is in the When the charger temperature terminal T' is connected to the battery pack temperature terminal T, the charger temperature terminal T' has a certain voltage.
- the charger protection circuit directly controls the charging module 23 through the charger temperature terminal T' when connected to the temperature measuring element 131 and not connected to the temperature measuring element 131.
- the advantage of this is that, when the battery pack 100 is not inserted, the charger 200 does not have the charger positive C+ and the charger negative C-charged due to the hardware guarantee, thereby ensuring the safety of use, and the function is not set. Additional connection terminals, while based on the existing charger temperature terminal T' simplifies the connection terminal settings, saving costs.
- the charger control module 26 can also detect the voltage signal of the charger temperature terminal T'.
- the charger control module 26 can detect the voltage signal of the charger temperature terminal T', thereby triggering the charging procedure of the charger control module 26, without detecting the charger temperature.
- the charger control module 26 enables the software protection program.
- the charger 200 secures charging safety by both hardware and software during charging.
- a charging control method will be described below based on the above battery pack 100, charger 200, and a charging combination 300 thereof.
- control method protects both aspects, one of which is charging protection:
- the charger control module 26 starts the charging protection program to control the charging module 23 when detecting that the battery pack 100 is connected, and the charger temperature terminal T' is electrically connected to the charging module 23 to constitute hardware protection, when the charger temperature terminal T' and the battery When the package temperature terminal T is disconnected, the charging module 23 turns off the power output of the charger positive C+ and the charger negative C-.
- control method includes a method of activating the battery pack 100 in the over-discharged state by the charger 200.
- the power of the battery pack 111 is insufficient to support the battery pack control module 16 to establish an effective connection with the charger control module 26 of the charger 200 for control and data interaction.
- the activation method is as follows:
- the charger 200 charger control module detects the charger temperature terminal T'.
- the charger 200 determines whether the battery pack 100 is connected to the charger 200 based on the voltage signal of the charger temperature terminal T'; if the battery pack 100 has been connected, the next step is continued.
- the charger 200 determines whether the data information transmitted by the battery pack 100 is received, and if the data information transmitted by the battery pack 100 is not received, the battery pack 100 is activated.
- the charger control module 26 controls the charging module 23 to perform activation charging on the battery pack 100 until the battery pack control module 16 of the battery pack 100 and
- the battery pack communication module 15 returns to normal so that the charger communication module 25 receives the communication information of the battery pack communication module 15 or reaches the upper limit of the activation time.
- the activation charging is not performed immediately after the communication information is not received, but a time range can be set, and if the communication information is not detected within the time range, the activation charging is performed.
- a constant current charging with a smaller current can be used when the charging is activated, and preferably the current is between 0.01 C and 0.1 C.
- the current is between 0.01 C and 0.1 C.
- the activation charge should continue for a period of time to ensure that the battery pack 100 is sufficient to transition to formal
- the charging phase therefore, preferably, after the battery pack control module 16 and the battery pack communication module 15 of the battery pack 100 return to normal and the charger communication module 25 receives the communication information of the battery pack communication module 15, the charger control module 26 remains
- the charging of the charging module 23 is continuously activated for a preset time. This preset duration is preferably 10 to 30 seconds.
- the charger control module 26 of the charger detects that it is connected every time.
- the battery pack 100 is only activated once for activation, and each activation charge has an upper limit of activation time, such as 2 to 5 minutes.
- the battery pack 100 further includes a disconnection detecting module (not shown) capable of judging whether or not there is a disconnected battery cell in the series unit according to the voltage value of the series unit.
- the disconnection detection module can be either part of the battery pack control module 16 or a separate functional module independent of the battery pack control module.
- the wire breakage detection module can be detected by the relative relationship between the voltage value of the series unit 111 and the time, or by the change of the internal resistance value of the series unit 111.
- the disconnection detection module includes: a timing unit for providing time data; a slope calculation unit for calculating a slope value of a voltage value of the series unit with respect to time; and a determination unit for determining a slope value according to the series unit It is judged whether or not there is a disconnected battery cell in the series unit.
- the disconnection detecting module includes: a current detecting unit for detecting a current value of the serial unit; and an internal resistance calculating unit for calculating the serial unit according to the voltage value and the current value of the serial unit And a judging unit, configured to judge whether there is a disconnected cell in the series unit according to the internal resistance value of the series unit.
- the disconnection detecting module in the above scheme may be disposed in the charger, and the disconnection detecting module may obtain the required when the battery pack 100 is connected with the charger. Data or signal.
- the disconnection detecting module in the above scheme may be disposed in the electric tool, and the disconnection detecting module may obtain the connection when the battery pack 100 is connected with the electric device.
- the electrical device can be either a powered device with a motor or a measuring device such as a laser range finder.
- the charger and the electrical device should also have a control module (not shown) that controls the disconnection detection circuit.
- the disconnection detecting method includes: detecting a voltage signal of the high voltage end of the series unit; calculating a slope value of the series unit voltage value with respect to time; The slope value of the cell determines whether there is a disconnected cell in the series cell.
- the series unit 111 is connected in series with the remaining series unit 111, so that the amount of electricity passing through them is the same, but due to the disconnection
- the voltage of the cell 11a whose voltage is compared with time must be different from that of the other normal series unit 111.
- the slope value of each series unit 111 may be compared with the average value of the slope values of all series units, or may be compared with the range of the preset slope value.
- the method specifically includes the following steps:
- step S7 determining whether the maximum detection slope is greater than or equal to 2 times the minimum detection slope, and if so, proceeding to step S8, otherwise returning to step S2;
- step S8 the serial unit 111 marking the maximum detection slope, the system reports an error, stops the charging process, and proceeds to step S9;
- step S7 the specific determination condition is determined according to the specific situation in the series unit 111. For example, when the series unit 111 has three parallel cells 111a, for the case of one wire break and two wire breaks. In other words, the criteria for its slope need to be further refined.
- step S7 the flow returns to step S2, and the end voltage value is measured in step S4 as the initial voltage value acquired in the step S2. This reduces the voltage detection action and reduces energy consumption.
- the disconnection detection method includes:
- the voltage signal of the high voltage end of the series unit 111 is detected; the internal resistance value of the series unit 111 is calculated; and whether the disconnected battery cell exists in the series unit is determined according to the internal resistance value of the series unit 111.
- the disconnection detection can be realized by detecting the voltage value and the current value, and then calculating the instantaneous internal resistance value in the series unit 111 and comparing whether the internal resistance value is abnormal.
- the internal resistance values can be compared in all the series units 111, and the internal resistance is The value is compared with the average value of the internal resistance value, and it is judged whether or not an abnormality occurs from the magnitude of the numerical fluctuation.
- the former has the advantage that the dynamic detection can be judged with changes in temperature and actual conditions, and the latter is that the amount of data calculation is small, but when the internal resistance changes greatly, there may be inaccuracies.
- Battery Pack Control Module A power tool that can be used as the power source by the battery pack 100 described above is described below.
- the power tool includes a power device 400 in addition to the battery pack 100.
- the power device 400 (shown in FIG. 8) includes a device communication module 401, a device control module 402, a power supply module 403, a discharge protection circuit 404, and a disconnection detection module 405.
- the device communication module 401 has a device communication terminal D" for forming a communication connection with the battery pack communication terminal D in the battery pack 100.
- the device control module 402 controls the device communication module 401.
- the power supply module 403 is connected to the device positive pole P+ and the device negative pole P- for respectively connecting with the positive terminal B+ of the battery pack 100 and the battery pack negative terminal B- to realize power transmission.
- the discharge protection circuit 404 is used to protect the safety of the battery pack during discharge, and is connected to a device temperature terminal T" for connecting to the battery pack temperature terminal T.
- the discharge protection circuit 404 detects that the device temperature terminal T" is disconnected from the battery pack temperature terminal T, or detects that the temperature of the battery pack 100 is too high, the power device 400 stops discharging the battery pack 100.
- the discharge protection circuit 404 generates a control signal to the device control module 402.
- the device control module 402 cuts off part of the circuit in the power device 400, and uses the electrical component such as the motor in the electrical device 400 and the positive terminal B+ of the battery pack 100.
- the current loop is disconnected from the negative terminal B- of the battery pack, so that the battery pack 100 stops discharging.
- the device control module 402 After receiving the data sent by the battery pack 100 through the battery pack communication module 15, the device control module 402 verifies the correctness of the single data packet through the CRC cycle; if the check data is in error, the current data packet is automatically discarded, and the next data packet is waiting to be received. If the valid data packet is not received within the preset time, the device control module 402 enters the protection waiting program and stops the power device 400 from operating.
- the device control module 402 feeds back data to the battery pack control module after receiving the valid data packet.
- the battery pack control module does not receive the feedback data of the device control module 402
- the battery pack control module continues to transmit the data packet and detects whether the battery pack is disconnected from the powered device 400.
- the device control module 402 starts counting after determining that the sent data packet of the battery pack control module 16 is invalid data. If the device control module 402 receives the valid data packet sent by the battery pack control module 16 during the timing, the device The timing of control module 402 is cleared.
- the device control module 402 enters a normal running program upon receiving a valid data packet.
- the charger control module 26 of the charger 200 can also employ the same data transfer, verification, and fault tolerance methods as the battery pack control module 16 of the battery pack 100.
- the battery pack control module 16 of the battery pack 100 can connect the adjacent series unit 111.
- the voltage sum is compared, the smaller one of them is selected first, and all the smaller voltage values selected from between two adjacent series units 111 are used as comparison objects, and the smallest of them is sent to the device.
- the control module serves as the basis for determining the undervoltage. This greatly reduces the amount of data transmission and improves efficiency.
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Abstract
Description
Claims (20)
- 一种电池包,包括:一个以上彼此之间构成串联的串联单元;电压检测模块,用于分别检测多个所述串联单元高压端的电压信号;和电池包控制模块,用于接收所述电压检测模块所检测的电压信号并计算出所述串联单元的电压值;其中,所述串联单元包括两个以上的电芯,一个所述串联单元中的多个所述电芯并联;所述电池包控制模块能根据所述串联单元的电压值判断所述串联单元中是否存在断开连接的所述电芯。
- 根据权利要求1所述的电池包,其特征在于,所述电池包控制模块中包括:断线检测模块,能根据所述串联单元的电压值和时间的相对关系判断所述串联单元中是否存在断开连接的所述电芯。
- 根据权利要求1所述的电池包,其特征在于,所述断线检测模块包括:计时单元,用于提供时间数据;斜率计算单元,用于计算所述串联单元的电压值相对时间的斜率值;和判断单元,用于根据所述串联单元的斜率值判断所述串联单元中是否存在断开连接的所述电芯。
- 根据权利要求1所述的电池包,其特征在于,所述电池包控制模块中包括:断线检测模块,能根据计算出所述串联单元的内阻值判断所述串联单元中是否存在断开连接的所述电芯。
- 根据权利要求4所述的电池包,其特征在于,所述断线检测模块包括:电流检测单元,用于检测所述串联单元的电流值;内阻计算单元,用于根据所述串联单元的电压值和电流值计算所述串联单元的内阻值;和判断单元,用于根据所述串联单元的内阻值判断所述串联单元中是否存在断开连接的所述电芯。
- 一种电池包,至少具有56V的输出电压,其包括:一个以上彼此之间构成串联的串联单元;电压检测模块,用于分别检测多个所述串联单元高压端的电压信号;和电池包控制模块,用于接收所述电压检测模块所检测的电压信号并计算出所述串联单元的电压值;其中所述串联单元包括两个以上的电芯,一个所述串联单元中的多个所述电芯并联;所述电池包还包括:断线检测模块,能根据所述串联单元的电压值判断所述串联单元中是否存在断开连接的所述电芯。
- 根据权利要求6所述的电池包,其特征在于,所述断线检测模块包括:计时单元,用于提供时间数据;斜率计算单元,用于计算所述串联单元的电压值相对时间的斜率值;和判断单元,用于根据所述串联单元的斜率值判断所述串联单元中是否存在断开连接的所述电芯。
- 根据权利要求6所述的电池包,其特征在于,所述断线检测模块包括:电流检测单元,用于检测所述串联单元的电流值;内阻计算单元,用于根据所述串联单元的电压值和电流值计算所述串联单元的内阻值;和判断单元,用于根据所述串联单元的内阻值判断所述串联单元中是否存在断开连接的所述电芯。
- 一种充电组合,包括电池包和为其充电的充电器,所述电池包包括:一个以上彼此之间构成串联的串联单元;所述串联单元包括两个以上的电芯,一个所述串联单元中的多个所述电芯并联;所述充电组合还包括:电压检测模块,用于分别检测多个所述串联单元高压端的电压信号;电池包控制模块,用于接收所述电压检测模块所检测的电压信号并计算出所述串联单元的电压值;和断线检测模块,能根据所述串联单元的电压值判断所述串联单元中是否存在 断开连接的所述电芯。
- 一种包括用电装置和电池包的电动工具,所述电池包能为所述用电装置供电,所述电池包包括一个以上彼此之间构成串联的串联单元;所述串联单元包括两个以上的电芯,一个所述串联单元中的多个所述电芯并联;所述电动工具和还包括:电压检测模块,用于分别检测多个所述串联单元高压端的电压信号;电池包控制模块,用于接收所述电压检测模块所检测的电压信号并计算出所述串联单元的电压值;和断线检测模块,能根据所述串联单元的电压值判断所述串联单元中是否存在断开连接的所述电芯。
- 一种断线检测方法,用于检测电池包中并联的电芯之间的线路是否断开,所述电池包包括一个以上彼此之间构成串联的串联单元,所述串联组合包括两个以上并联的电芯;所述检测方法包括:检测所述串联组合高压端的电压信号;计算所述串联组合电压值相对时间的斜率值;根据所述串联组合的斜率值判断所述串联单元中是否存在断开连接的所述电芯。
- 一种断线检测方法,用于检测电池包中并联的电芯之间的线路是否断开,所述电池包包括一个以上彼此之间构成串联的串联单元,所述串联组合包括两个以上并联的电芯;所述检测方法包括:检测所述串联组合高压端的电压信号;计算所述串联组合的内阻值;根据所述串联组合的内阻值判断所述串联单元中是否存在断开连接的所述电芯。
- 一种电池包,包括:一个以上彼此之间构成串联的串联单元;电压检测模块,用于分别检测多个所述串联单元高压端的电压信号;电池包控制模块,用于接收所述电压检测模块所检测的电压信号并计算出所述串联单元的电压值;其中,所述串联单元包括一个以上的电芯,一个所述串联单元中的多个所述电芯并联;所述电压检测模块与所述电芯组构成电连接。
- 根据权利要求13所述的电池包,其特征在于,所述电压检测模块包括:检测电路,一端连接至所述串联单元的高压端另一端连接至所述电池包控制模块;其中,所述电池包控制模块通过多个所述检测电路分时检测多个所述串联单元高压端的电压信号。
- 根据权利要求14所述的电池包,其特征在于,所述电压检测模块还包括:分时模块,用于控制至少两个所述检测电路;其中,所述电池包控制模块通过所述分时模块使其控制的多个所述检测电路分时导通。
- 根据权利要求15所述的电池包,其特征在于,所述电池包控制模块包括:第一MCU单元,用于接收其中一部分所述检测电路的电压信号;第二MCU单元,用于接收其中另一部分所述检测电路的电压信号;所述电压检测模块包括:第一分时模块,用于控制电压信号发送到所述第一MCU单元的多个所述检测电路分时导通;第二分时模块,用于控制电压信号发送到所述第二MCU单元的多个所述检测电路分时导通;其中,所述第一MCU单元控制所述第一分时模块,所述第二MCU单元控制所述第二分时模块,所述第二MCU单元能将数据传递给所述第一MCU单元。
- 根据权利要求16所述的电池包,其特征在于,将电压信号发送到所述第一MCU单元的所述检测电路分别连接至相邻的所述串联单元的高压端;将电压信号发送到所述第二MCU单元的所述检测电路分别连接至相邻的所述串联单元的高压端。
- 根据权利要求17所述的电池包,其特征在于,所述第一MCU单元所控制的所述检测电路的数目等于所述第二MCU单元所控制的所述检测电路的数目。
- 根据权利要求15所述的电池包,其特征在于,所述检测电路包括:通断元件,能被所述分时模块控制使所述检测电路导通或断开;其中,所述通断元件包括:两个连接端,用于使通断元件连接至所述检测电路中;控制端,用于接收所述分时模块的信号并控制两个所述连接端导通或断开;其中,两个所述连接端包括:检测端,连接至所述串联单元的高压端;输出端,连接至所述电池包控制模块。
- 根据权利要求14所述的电池包,其特征在于,所述检测电路包括:分压电阻,能使所述主控接收的电压信号稳定在预设范围内。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106356941A (zh) * | 2016-09-30 | 2017-01-25 | 郑州云海信息技术有限公司 | 一种可热配置维护的模块化电池组管理系统 |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10749430B2 (en) | 2015-03-13 | 2020-08-18 | Positec Power Tools (Suzhou) Co., Ltd. | Power transmission apparatus and control method therefor, and power supply system |
WO2017000216A1 (zh) * | 2015-06-30 | 2017-01-05 | 深圳市大疆创新科技有限公司 | 充电控制电路、充电装置、充电系统及充电控制方法 |
CN105182243A (zh) * | 2015-08-28 | 2015-12-23 | 陈宇星 | 一种智能蓄电池 |
AU201615158S (en) | 2016-03-17 | 2016-12-09 | Tti Macao Commercial Offshore Ltd | Battery pack |
AU201615153S (en) | 2016-03-17 | 2016-12-09 | Tti Macao Commercial Offshore Ltd | Battery pack |
AU201615156S (en) | 2016-03-17 | 2016-12-09 | Tti Macao Commercial Offshore Ltd | Battery pack |
KR20180056088A (ko) | 2016-11-18 | 2018-05-28 | 삼성전자주식회사 | 센싱 장치 및 이를 포함하는 배터리 관리 시스템 |
CN106712167A (zh) * | 2016-12-13 | 2017-05-24 | 北京奇虎科技有限公司 | 一种充电电源保护设备 |
TWD200631S (zh) | 2017-01-17 | 2019-11-01 | 澳門商創科(澳門離岸商業服務)有限公司 | 電池組之部分 |
USD926674S1 (en) | 2017-01-17 | 2021-08-03 | Tti (Macao Commercial Offshore) Limited | Battery pack with communication terminal |
USD853216S1 (en) | 2017-01-17 | 2019-07-09 | Tti (Macao Commercial Offshore) Limited | Power tool |
USD853813S1 (en) | 2017-01-17 | 2019-07-16 | Tti (Macao Commercial Offshore) Limited | Power tool |
CN115911614A (zh) | 2017-06-16 | 2023-04-04 | 工机控股株式会社 | 电池组、第一电气设备本体以及第二电气设备本体 |
KR102137759B1 (ko) * | 2017-07-06 | 2020-07-24 | 주식회사 엘지화학 | 배터리 팩 관리 장치 |
US11300624B2 (en) | 2017-07-28 | 2022-04-12 | Northstar Battery Company, Llc | System for utilizing battery operating data |
US11029941B2 (en) | 2017-11-30 | 2021-06-08 | Nanjing Chervon Industry Co., Ltd. | Electrical device and program update method thereof |
CN110177454A (zh) | 2017-11-30 | 2019-08-27 | 南京德朔实业有限公司 | 电动工具系统及用于该系统的升级方法 |
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JP7020108B2 (ja) * | 2017-12-25 | 2022-02-16 | トヨタ自動車株式会社 | 二次電池システムおよび組電池の異常診断方法 |
CN108321904B (zh) * | 2018-03-14 | 2024-08-16 | 汉宇集团股份有限公司 | 一种汽车电池保护系统 |
CN108306400A (zh) * | 2018-03-22 | 2018-07-20 | 广州云阳电子科技有限公司 | 一种可检测过放保护电池组连接并自动启动充电的智能充电器及其实现方法 |
DE102018214612A1 (de) * | 2018-08-29 | 2020-03-05 | Robert Bosch Gmbh | Verfahren zum Erkennen von Kontaktierungsfehlern in einem Akkupack und System zum Durchführen des Verfahrens |
CN110970673B (zh) | 2018-10-01 | 2023-08-18 | 株式会社牧田 | 电池组、电池系统 |
JP7231416B2 (ja) * | 2018-10-01 | 2023-03-01 | 株式会社マキタ | バッテリパック、バッテリシステム |
JP7077204B2 (ja) * | 2018-10-31 | 2022-05-30 | 株式会社豊田中央研究所 | 電源装置 |
CN109239609B (zh) * | 2018-11-02 | 2024-04-12 | 西安航远数字技术有限公司 | 一种无人机并联多电池的在位检测系统 |
CN109660006A (zh) * | 2019-01-23 | 2019-04-19 | 珠海市微半导体有限公司 | 一种检测充电电池是否接入的方法及机器人的充电方法 |
CN112952224B (zh) * | 2019-12-11 | 2022-12-20 | 南京泉峰科技有限公司 | 一种电池包的充电平衡方法、系统和电池包 |
FR3115607B1 (fr) * | 2020-10-22 | 2022-10-07 | Psa Automobiles Sa | Procede de detection d’un defaut d’un groupe de modules d’une batterie |
CN112928794A (zh) * | 2021-02-02 | 2021-06-08 | 邵琪 | 一种锂电池管理系统及该锂电池管理系统的控制方法 |
CN115208019A (zh) * | 2022-07-22 | 2022-10-18 | 珠海冠宇电源有限公司 | 电池激活方法、装置、电子设备及存储介质 |
DE102023107407A1 (de) * | 2023-03-24 | 2024-09-26 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren und Vorrichtung zur Erkennung einer Beeinträchtigung des Zellkontaktiersystems einer Zelleinheit einer Batterie |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101043143A (zh) * | 2006-03-24 | 2007-09-26 | 株式会社日立制作所 | 电源控制装置 |
JP2010067536A (ja) * | 2008-09-12 | 2010-03-25 | Toshiba Corp | 電池パック |
CN103168406A (zh) * | 2010-10-20 | 2013-06-19 | 索尼公司 | 电池组、用于对电池组充电/放电的方法以及功耗装置 |
CN103262384A (zh) * | 2011-01-28 | 2013-08-21 | 日立麦克赛尔株式会社 | 电池单元 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4840154B1 (zh) * | 1970-04-03 | 1973-11-29 | ||
FR2694660B1 (fr) * | 1992-08-05 | 1994-10-07 | Merlin Gerin | Dispositif de détection de défaillance d'éléments de batterie. |
JP2003235178A (ja) * | 2002-02-05 | 2003-08-22 | Yamaha Corp | 電池出力制御装置 |
JP4500121B2 (ja) * | 2004-07-14 | 2010-07-14 | 株式会社ルネサステクノロジ | 電池電圧監視システム |
JP5097365B2 (ja) * | 2006-07-19 | 2012-12-12 | パナソニック株式会社 | 電池パックおよびその断線検知方法 |
JP4945206B2 (ja) * | 2006-09-13 | 2012-06-06 | パナソニック株式会社 | 電池パックおよびその断線検知方法 |
JP4840154B2 (ja) * | 2007-01-23 | 2011-12-21 | パナソニック株式会社 | 電源機器 |
JP5474438B2 (ja) * | 2009-07-31 | 2014-04-16 | 三洋電機株式会社 | 二次電池装置 |
EP2325919A3 (en) * | 2009-10-30 | 2011-11-30 | Sanyo Electric Co., Ltd. | Battery system and electric vehicle including the same |
DE102010040721A1 (de) * | 2010-09-14 | 2012-03-15 | Sb Limotive Company Ltd. | Batteriesystem mit Zellspannungserfassungseinheiten |
JP5796289B2 (ja) * | 2010-11-26 | 2015-10-21 | ソニー株式会社 | 二次電池セル、電池パック及び電力消費機器 |
WO2012132246A1 (ja) * | 2011-03-31 | 2012-10-04 | パナソニック株式会社 | 電池電源装置、及び電池電源システム |
JP2012235611A (ja) * | 2011-04-28 | 2012-11-29 | Sanyo Electric Co Ltd | 異常判定方法、異常判定回路及びパック電池 |
US8571738B1 (en) * | 2012-06-13 | 2013-10-29 | Jtt Electronics Ltd | Automotive vehicle battery power system monitoring systems, apparatus and methods |
JP5843051B2 (ja) * | 2013-05-17 | 2016-01-13 | 三洋電機株式会社 | パック電池、及び、二次電池の放電制御方法 |
-
2014
- 2014-12-26 US US14/583,377 patent/US9726731B2/en active Active
- 2014-12-30 EP EP14876444.2A patent/EP3079220B1/en active Active
- 2014-12-30 GB GB1423351.4A patent/GB2524363B/en active Active
- 2014-12-30 NZ NZ722133A patent/NZ722133A/en unknown
- 2014-12-30 WO PCT/CN2014/095537 patent/WO2015101284A1/zh active Application Filing
- 2014-12-30 CA CA2935503A patent/CA2935503C/en active Active
- 2014-12-30 AU AU2014375491A patent/AU2014375491B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101043143A (zh) * | 2006-03-24 | 2007-09-26 | 株式会社日立制作所 | 电源控制装置 |
JP2010067536A (ja) * | 2008-09-12 | 2010-03-25 | Toshiba Corp | 電池パック |
CN103168406A (zh) * | 2010-10-20 | 2013-06-19 | 索尼公司 | 电池组、用于对电池组充电/放电的方法以及功耗装置 |
CN103262384A (zh) * | 2011-01-28 | 2013-08-21 | 日立麦克赛尔株式会社 | 电池单元 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3079220A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106356941A (zh) * | 2016-09-30 | 2017-01-25 | 郑州云海信息技术有限公司 | 一种可热配置维护的模块化电池组管理系统 |
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