CN206226070U - A kind of safety management system of high pressure lithium battery pack failure - Google Patents
A kind of safety management system of high pressure lithium battery pack failure Download PDFInfo
- Publication number
- CN206226070U CN206226070U CN201621255594.1U CN201621255594U CN206226070U CN 206226070 U CN206226070 U CN 206226070U CN 201621255594 U CN201621255594 U CN 201621255594U CN 206226070 U CN206226070 U CN 206226070U
- Authority
- CN
- China
- Prior art keywords
- battery
- controlled switch
- gate
- voltage
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of safety management system of high pressure lithium battery pack failure, it is related to high pressure technical field of lithium batteries, including：First gate-controlled switch, the controlled switch of the first gate-controlled switch is connected in battery pack charge or discharge loop, for controlling battery charge or discharge circuit communication or disconnection；Multiple Balance route plates, each Balance route plate includes：Voltage detection unit, the voltage for detecting battery two ends；First connecting valve, the first connecting valve series connection of multiple Balance route plates；One end after series connection connects the first predeterminated voltage source, and the first predeterminated voltage source is used to control the controlled switch conduction of the first gate-controlled switch, and the other end after series connection connects the control end of the first gate-controlled switch；Control unit, is connected with voltage detection unit, is disconnected for the first connecting valve on the control Balance route plate when the voltage for detecting battery two ends is more than the first predeterminated voltage.The utility model may insure the security of high pressure lithium battery pack charge and discharge.
Description
Technical field
The utility model is related to high pressure technical field of lithium batteries, and in particular to a kind of bursting tube of high pressure lithium battery pack failure
Reason system.
Background technology
High pressure lithium battery pack be widely used in the electric vehicles such as electric bicycle, electric wheelchair and electric drill, cutting machine,
The electric tools such as hay mover.High pressure lithium battery pack be by multiple lithium batteries in parallel or series together, form high voltage to load
Power supply, its output voltage is up to tens volts, or even a few hectovolts, when charging or using if there is failure, can cause burning, it is quick-fried
The serious consequence such as fried.Therefore, more structurally sound Fault Management System is needed to ensure its security for high pressure lithium battery pack.
The content of the invention
In view of this, the utility model embodiment provides a kind of safety management system of high pressure lithium battery pack failure, with
Ensure the security of high pressure lithium battery pack charge and discharge.
The utility model embodiment provides a kind of safety management system of high pressure lithium battery pack failure, including：First can
Control switch, the controlled switch of first gate-controlled switch is connected in battery pack charge or discharge loop, for controlling battery to fill
Electricity or discharge loop connection disconnect；Multiple Balance route plates, each described Balance route plate includes：Voltage detection unit, uses
In the voltage at detection battery two ends；First connecting valve, the first connecting valve series connection of multiple Balance route plates；After series connection one
End the first predeterminated voltage source of connection, the first predeterminated voltage source is used to control the controlled switch of first gate-controlled switch to lead
Logical, the other end after series connection connects the control end of first gate-controlled switch；Control unit, connects with the voltage detection unit
Connect, the voltage for detecting battery two ends when the voltage detection unit on the Balance route plate is more than the first predeterminated voltage
When, control first connecting valve on the Balance route plate to disconnect.
Alternatively, the safety management system of the high pressure lithium battery pack failure also includes at least one second gate-controlled switches,
The controlled switch of second gate-controlled switch is connected in battery pack charge or discharge loop, for controlling battery charge or discharge
Circuit communication or disconnection；Correspondingly, each described Balance route plate also includes：Second connecting valve, multiple Balance route plates
Second connecting valve is connected；One end after series connection connects the second predeterminated voltage source, and the second predeterminated voltage source is used to control institute
The controlled switch conduction of the second gate-controlled switch is stated, the other end after series connection connects the control end of second gate-controlled switch；It is described
Control unit, be additionally operable to the voltage detection unit on the Balance route plate detect battery two ends voltage it is pre- more than second
If during voltage, controlling second connecting valve on the Balance route plate to disconnect.
Alternatively, the safety management system of the high pressure lithium battery pack failure also includes：Master controller, it is described with multiple equal
The voltage detection unit on weighing apparatus control panel is connected respectively, for reaching the when the voltage for having battery two ends in the battery bag
During three predeterminated voltages, control charger stops charging.
Alternatively, first predeterminated voltage is less than second predeterminated voltage.
Alternatively, the 3rd predeterminated voltage is less than first predeterminated voltage.
Alternatively, the safety management system of the high pressure lithium battery pack failure also includes：Temperature detecting unit, for detecting
The temperature of battery in battery bag；The master controller also with the temperature detecting unit, the control end of first gate-controlled switch
Connect respectively, for when the temperature of battery in battery bag is more than the first preset temperature value, controlling battery charge or discharge loop
Disconnect.
Alternatively, the safety management system of the high pressure lithium battery pack failure also includes：First temperature switch, with described
The control end connection of one gate-controlled switch, the temperature for detecting battery in battery bag, and when the temperature of battery in battery bag is big
When the second preset temperature value, control battery charge or discharge loop disconnects.
Alternatively, the safety management system of the high pressure lithium battery pack failure also includes：Second temperature is switched, for detecting
The temperature of battery in battery bag, and when the temperature for detecting battery in battery bag is more than three preset temperature values, produce control
System instruction；Heat sink, for according to control instruction, to the battery cooling in battery bag.
Alternatively, the safety management system of the high pressure lithium battery pack failure also includes：Current detecting unit, for detecting
Electric current in battery bag in battery charge or discharge loop；The master controller is also connected with the current detecting unit, is used for
When the electric current in battery charge or discharge loop is more than pre-set current value, the charge or discharge loop is controlled to disconnect.
Alternatively, the two ends of first gate-controlled switch are also parallel with the 3rd gate-controlled switch and current-limiting resistance, the described 3rd
The controlled switch of gate-controlled switch is in parallel with the current-limiting resistance；The system also includes disconnecting switch, and short circuit is opened for receiving
The order of function is detected, and controls the 3rd gate-controlled switch to be turned on or off；The control end of the 3rd gate-controlled switch and institute
State disconnecting switch connection.
Alternatively, when the battery bag is connected with load, the two ends of the load are also parallel with sensitivity resistor and optocoupler；
The primary side of the optocoupler is connected with the sensitivity resistor；One end connection power supply of the secondary of the optocoupler, other end connection inspection
Measuring resistance；The master controller is also connected with the detection resistance, for the voltage when the detection resistance two ends less than default
First gate-controlled switch is controlled to disconnect during magnitude of voltage.
The safety management system of the high pressure lithium battery pack failure that the utility model embodiment is provided, including set multiple balanced
Control panel, sets the first connecting valve, the first connecting valve series connection of multiple Balance route plates, after series connection on Balance route plate
One end connect the first predeterminated voltage source, the other end after series connection connects the control end of the first gate-controlled switch, will pass through first
Predeterminated voltage source controls the first gate-controlled switch to be turned on or off, so as to control battery charge or discharge circuit communication or disconnection；This
Outward, the control unit set on Balance route plate is connected with voltage detection unit, for detecting battery when voltage detection unit
The voltage at two ends controls the first connecting valve to disconnect when being more than the first predeterminated voltage, so that the first gate-controlled switch disconnects, after
And charge or discharge loop is disconnected, to ensure the security of high pressure lithium battery pack charge and discharge.
Brief description of the drawings
Feature and advantage of the present utility model can be more clearly understood from by reference to accompanying drawing, accompanying drawing be it is schematical without
It is interpreted as carrying out any limitation to the utility model, in the accompanying drawings：
Fig. 1 shows the signal of the safety management system of the high pressure lithium battery pack failure according to the utility model embodiment
Figure.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those skilled in the art are obtained under the premise of creative work is not made belongs to this reality
With novel protected scope.
Fig. 1 shows the signal of the safety management system of the high pressure lithium battery pack failure according to the utility model embodiment
Figure.According to Fig. 1, the safety management system of the high pressure lithium battery pack failure includes that the first gate-controlled switch 100 and multiple are balanced
Control panel.The controlled switch of first gate-controlled switch 100 is connected in battery pack charge or discharge loop, for controlling battery to fill
Electricity or discharge loop connection disconnect.Alternatively, first gate-controlled switch 100 is relay or A.C. contactor.
As shown in figure 1, battery pack includes the first battery 210, the second battery 310 and the 3rd battery 410.Correspondingly, including
First Balance route plate 220, the second Balance route plate 320 and the 3rd Balance route plate 420.
First Balance route plate 220 includes voltage detection unit 221, the connecting valve 223 of control unit 222 and first.Electricity
Pressure detection unit 221 is used to detect the voltage at the two ends of the first battery 210.Control unit 222 is connected with voltage detection unit 221,
Voltage for detecting the two ends of the first battery 210 when the voltage detection unit 221 on the first Balance route plate 220 is more than first
During predeterminated voltage, the first connecting valve 223 on the first Balance route plate 220 of control disconnects.
Second Balance route plate 320 includes voltage detection unit 321, the connecting valve 323 of control unit 322 and first.Electricity
Pressure detection unit 321 is used to detect the voltage at the two ends of the first battery 310.Control unit 322 is connected with voltage detection unit 321,
Voltage for detecting the two ends of the second battery 310 when the voltage detection unit 321 on the second Balance route plate 320 is more than first
During predeterminated voltage, the first connecting valve 323 on the second Balance route plate 320 of control disconnects.
3rd Balance route plate 420 includes voltage detection unit 421, the connecting valve 423 of control unit 422 and first.Electricity
Pressure detection unit 421 is used to detect the voltage at the two ends of the first battery 410.Control unit 422 is connected with voltage detection unit 421,
Voltage for detecting the two ends of the 3rd battery 410 when the voltage detection unit 421 on the 3rd Balance route plate 420 is more than first
During predeterminated voltage, the first connecting valve 423 on the 3rd Balance route plate 420 of control disconnects.
First connecting valve of above-mentioned multiple Balance route plates is connected into line；One end of line connects the first predeterminated voltage source,
First predeterminated voltage source is used to control the controlled switch conduction of the first gate-controlled switch, and the other end of line connects the first gate-controlled switch
Control end.That is, the first end of the first connecting valve 223 is connected with the first predeterminated voltage source 500 in Fig. 1, the second end and first
The first end connection of connecting valve 323；Second end of the first connecting valve 323 is connected with the first end of the first connecting valve 423；
Second end of the first connecting valve 423 is connected with the control end of the first gate-controlled switch 100.
The safety management system of above-mentioned high pressure lithium battery pack failure, including multiple Balance route plates are set, in Balance route
First connecting valve is set on plate, and the first connecting valve of multiple Balance route plates is connected into line, and one end connection first of line is pre-
If voltage source, the other end of line connects the control end of the first gate-controlled switch, can will pass through the first predeterminated voltage source control first
Control switch conduction or disconnection, so as to control battery charge or discharge circuit communication or disconnection；Additionally, setting on Balance route plate
Control unit is connected with voltage detection unit, and the voltage for detecting battery two ends when voltage detection unit is preset more than first
Control the first connecting valve to disconnect during voltage, so that the first gate-controlled switch disconnects, then disconnect charge or discharge loop, with
Ensure the security of high pressure lithium battery pack charge and discharge.
Used as a kind of optional embodiment of embodiment illustrated in fig. 1, the safety management system of high pressure lithium battery pack failure is also
Including at least one second gate-controlled switches and at least one second predeterminated voltage sources, correspondingly, each Balance route plate also includes
At least one second connecting valves.
As shown in figure 1, the controlled switch of the second gate-controlled switch 600 is connected in battery pack charge or discharge loop, it is used for
Control battery charge or discharge circuit communication or disconnection.
Correspondingly, the first Balance route plate 220 also includes the second connecting valve 224, and control unit 222 is additionally operable to when equilibrium
When the voltage that voltage detection unit 221 on control panel 220 detects the two ends of the first battery 210 is more than the second predeterminated voltage, control
The second connecting valve 224 on Balance route plate 220 processed disconnects.
Second Balance route plate 320 also includes the second connecting valve 324, and control unit 322 is additionally operable to when Balance route plate
When the voltage that voltage detection unit 321 on 320 detects the two ends of the second battery 310 is more than the second predeterminated voltage, control is balanced
The second connecting valve 324 on control panel 320 disconnects.
3rd Balance route plate 420 also includes the second connecting valve 424, and control unit 422 is additionally operable to when Balance route plate
When the voltage that voltage detection unit 421 on 420 detects the two ends of the 3rd battery 410 is more than the second predeterminated voltage, control is balanced
The second connecting valve 424 on control panel 420 disconnects.
Second connecting valve of above-mentioned multiple Balance route plates is connected into line；One end of line connects the second predeterminated voltage source,
Second predeterminated voltage source is used to control the controlled switch conduction of the second gate-controlled switch, and the other end of line connects the second gate-controlled switch
Control end.That is, the first end of the second connecting valve 224 is connected with the second predeterminated voltage source 700 in Fig. 1, the second end and second
The first end connection of connecting valve 324；Second end of the second connecting valve 324 is connected with the first end of the second connecting valve 424；
Second end of the second connecting valve 424 is connected with the control end of the second gate-controlled switch 600.
It should be added that, the safety management system that Fig. 1 simply show high pressure lithium battery pack failure includes one
Second gate-controlled switch and a second predeterminated voltage source, correspondingly Balance route plate include the example of second connecting valve.
But the technical scheme of the application is not limited to this, can also include multiple second gate-controlled switches and second with set voltage source, phase
Answering ground Balance route plate includes multiple second connecting valves.
Used as a kind of optional embodiment of the present embodiment, the safety management system of the high pressure lithium battery pack failure also includes
Master controller 800, is connected respectively with the voltage detection unit on multiple Balance route plates, for example, connected by serial ports, for working as
When the voltage for having battery two ends in battery bag reaches three predeterminated voltages, control charger stops charging.That is, master controller
800 are connected respectively with voltage detection unit 221, voltage detection unit 321, voltage detection unit 421, when the first battery 210,
When the voltage at any battery two ends reaches three predeterminated voltages in two batteries 310, the 3rd battery 410, the control of main control 800 is charged
Device stops charging.Main control 800 can directly control the special charger of battery bag to stop charging, and the application is to master controller
The concrete form that 800 control chargers stop charging is not construed as limiting.
Above-mentioned first predeterminated voltage, the second predeterminated voltage and the 3rd predeterminated voltage can be with equal, it is also possible to unequal.It is optional
Ground, the first predeterminated voltage is less than the second predeterminated voltage, and the 3rd predeterminated voltage is less than the first predeterminated voltage.For example, the 3rd default electricity
It is 4.15V to press, and the first predeterminated voltage is 4.20V, and the second predeterminated voltage is 4.22V.
That is, during charging, cell voltage gradually rises in battery bag, when the voltage for having battery two ends is more than
During 4.15V, the control of main control 800 charger stops charging first, to prevent overtension from causing danger.
And if main control 800 is broken down, charger continues to charge the battery, when there is cell voltage to be more than 4.20V,
Corresponding first connecting valve can disconnect, and the first default power supply 500 can not be by the first connecting valve string in each Balance route plate
First gate-controlled switch of line traffic control 100 of connection is turned on, i.e., when there is cell voltage to be more than 4.20V, the meeting of the first gate-controlled switch 100
Disconnect, battery charge circuit disconnects, and again ensures that the security of charging.
Further, disconnected when the first gate-controlled switch 100 is failed, then charger continues to charge the battery, when there is battery
When voltage is more than 4.22V, corresponding second connecting valve can disconnect, and the second default power supply 700 can not be by each Balance route plate
In the second connecting valve the second gate-controlled switch of line traffic control 600 that is in series turn on, i.e., when there is cell voltage to be more than 4.22V, the
Two gate-controlled switches 600 can disconnect, and battery charge circuit disconnects, and further ensures that the security of charging.
The safety management system of above-mentioned high pressure lithium battery pack failure, makes the first predeterminated voltage source pass through the first connecting valve string
The gate-controlled switch of line traffic control first of connection, or make the line traffic control that the second predeterminated voltage source is in series by the second connecting valve
The second gate-controlled switch is made, so that charge and discharge circuit communication or disconnection are controlled, so that when the voltage detecting on any Balance route plate
When unit detects cell voltage exception, charge and discharge loop can all disconnect, so as to ensure security.On the other hand, when any
When wire between one connecting valve or the second connecting valve disconnects and causes line to disconnect, charge and discharge loop can also disconnect, in case
Only because security mechanism failure is unable to successfully disconnect charge and discharge loop when cell voltage is abnormal.Additionally, in battery electricity
When pressure is more than the 3rd predeterminated voltage rank, disconnected by main controller controls charger；In cell voltage more than the second default electricity
When arbitrarily downgrading other, the gate-controlled switch of line traffic control first being in series by the first connecting valve on Balance route plate is disconnected；In electricity
When cell voltage is more than the second predeterminated voltage rank, the line traffic control being in series by the first connecting valve on Balance route plate the
One gate-controlled switch disconnects, it can be seen that, the safety management system of this high pressure lithium battery pack failure includes three different execution
The charger that mechanism, i.e. the first gate-controlled switch, the second gate-controlled switch and controller can be controlled directly, these three different execution
Mechanisms in series can disconnect charge or discharge time in charge or discharge loop by controlling any one executing agency to disconnect
Road, so as to realize that triple safe mechanism ensures that cell voltage will not be too high, so that it is guaranteed that the charge and discharge safety of high pressure lithium battery
Property.
Alternatively, the second gate-controlled switch 600 is unidirectional gate-controlled switch, such as controllable silicon, triode, metal-oxide-semiconductor, IGBT, and this
Two gate-controlled switches 600 are just connected in charge circuit.
As shown in figure 1, the safety management system of high pressure lithium battery pack failure also includes temperature detecting unit 900, for examining
Survey the temperature of battery in battery bag.Master controller 800 also divides with the control end of temperature detecting unit 900, the first gate-controlled switch 100
Do not connect, for when the temperature of battery in battery bag is more than the first preset temperature value, control battery charge or discharge loop to be broken
Open.
The safety management system of high pressure lithium battery pack failure also includes the first temperature switch 1000, with the first gate-controlled switch
100 control end connection, the temperature for detecting battery in battery bag, and when the temperature of battery in battery bag is pre- more than second
If during temperature value, control battery charge or discharge loop disconnects.
For example, when charging, when battery temperature is more than 45 degree, first gate-controlled switch of the control of master controller 800 100 breaks
Open；In electric discharge, when battery temperature is more than 65 degree, master controller 800 controls the first gate-controlled switch 100 to disconnect.
The safety management system of high pressure lithium battery pack failure also includes that second temperature switchs 1100 and heat sink 1200.The
Two temperature switches 1100 are used to detect the temperature of battery in battery bag, and when detecting the temperature of battery in battery bag more than the
During three preset temperature values, control instruction is produced.Heat sink 1200, for according to control instruction, to the battery drop in battery bag
Temperature.
Above-mentioned first preset temperature value, the second preset temperature value, the numerical value difference of the 3rd preset temperature value, the application is to it
Size order is not construed as limiting.
Alternatively, above-mentioned first preset temperature value is more than the second preset temperature value, and the second preset temperature value is pre- more than the 3rd
If temperature value.So as to when battery temperature is more than three preset temperature values, heat sink starts, and gives battery cooling.If battery temperature
When degree continues to raise to above the second preset temperature value, the first temperature switch is opened so as to control the first gate-controlled switch to disconnect, and is broken
Open charge or discharge loop.If the first temperature switch breaks down, battery temperature continues to raise to above the first preset temperature value
When, the gate-controlled switch of main controller controls first disconnects, and disconnects charge or discharge loop.Therefore, this high pressure lithium battery pack failure
Safety management system realizes the charge and discharge security that high pressure lithium battery is ensured by three-level monitoring temperature mechanism.
As shown in figure 1, the safety management system of high pressure lithium battery pack failure also includes current detecting unit 1300, for examining
Survey the electric current in battery charge or discharge loop in battery bag.Master controller 800 is also connected with current detecting unit, for when electricity
When electric current in the charge or discharge loop of pond is more than pre-set current value, control charge or discharge loop disconnects such that it is able to ensure
Electric current will not be too high during high pressure lithium battery charge and discharge, to ensure the charge and discharge security of high pressure lithium battery.Alternatively, electricity
Stream detection unit 1300, both can be connected in charge circuit, be connected in discharge loop again, as shown in location A in Fig. 1, use
Electric current will not be too high during high pressure lithium battery charge and discharge are ensured；Or, current detecting unit 1300 is just connected to discharge back
Lu Zhong, as shown in figure 1, electric current will not be too high in being only used for ensuring high pressure lithium battery discharge process.
Further, as shown in figure 1, being additionally provided with diode 2100 in charge circuit, with charger in series after be connected in parallel on
Load two ends, for preventing battery in charging process from discharging charger.Fuse 2000 is additionally provided with discharge loop, it melts
Power-off stream is 40A to 80A, for protecting the electric current in discharge circuit will not be excessive, it is ensured that battery discharge security.
As shown in figure 1, the two ends of the first gate-controlled switch are also parallel with the safety management system of high pressure lithium battery pack failure
3rd gate-controlled switch 1400 and current-limiting resistance 1500, the controlled switch of the 3rd gate-controlled switch are in parallel with current-limiting resistance.The system is also
Including disconnecting switch 1600, open the order of function of short circuit detection for receiving, and control the 3rd gate-controlled switch 1400 turn on or
Disconnect.The order of the unlatching function of short circuit detection can be user by battery bag outside button send, or other
What functional module sent, the application is construed as limiting not to this.The control end of the 3rd gate-controlled switch 1400 connects with disconnecting switch 1600
Connect.
Before battery powering load, under the disconnection of the first gate-controlled switch 100, when needing to carry out short-circuit detecting, every
Leave pass and receive order, and control the 3rd gate-controlled switch 1400 to turn on.If load short circuits, discharge current flows through the 3rd and controllable opens
Close 1400 and current-limiting resistance 1500 forms loop, current-limiting resistance 1500 so that loop current will not be excessive.
Now, the voltage at battery pack two ends is mainly undertaken by current-limiting resistance in battery bag, and loads the voltage very little at two ends.
If can judge whether load is short-circuit according to the voltage at load two ends if two ends shunt voltage detection unit is loaded.
Used as a kind of optional embodiment of the present embodiment, when battery bag is connected with load, the two ends of load are also parallel with
Sensitivity resistor 1700 and optocoupler 1800.The primary side of optocoupler 1700 is connected with sensitivity resistor；One end of the secondary of optocoupler 1700
Connection power supply, other end connecting detection resistance 1900.If during load short circuits, flowing through the electric current very little of the primary side of optocoupler 1800, so that
The voltage of the detection resistance 1900 detected by main control 800 is smaller；If load is not short-circuit, current loop can not be formed, electricity
The voltage at pond group two ends is all carried in load two ends, therefore it is larger to flow through the electric current of the primary side of optocoupler 1800.Thus, master controller
800 can judge whether load is short-circuit by the voltage swing of detected detection resistance 1900.Can also be by sensitive
Resistance 1700 is spent to adjust the sensitivity of detection.Master controller 800 is also connected with detection resistance 1900, for working as detection resistance
The voltage at 1900 two ends controls the first gate-controlled switch to disconnect when being less than preset voltage value, so that in high pressure lithium battery to load supplying
When, if load short circuits, system can automatically disconnect electric discharge backflow, so that it is guaranteed that the security of high pressure lithium battery electric discharge.
The utility model embodiment illustrates technical side of the present utility model only so that battery pack is three battery series connection as an example
Case.It should be added that, the battery number in battery pack can be multiple, however it is not limited to three；And the connection side of battery
Formula is also not necessarily limited to series connection, can also be in parallel, or is connected after first in parallel after series connection, first parallel connection.
Although being described in conjunction with the accompanying embodiment of the present utility model, those skilled in the art can not depart from this
Various modification can be adapted in the case of the spirit and scope of utility model and modification, and such modification and modification are each fallen within by appended power
Profit is required within limited range.
Claims (10)
1. a kind of safety management system of high pressure lithium battery pack failure, it is characterised in that including：
First gate-controlled switch, the controlled switch of first gate-controlled switch is connected in battery pack charge or discharge loop, is used for
Control battery charge or discharge circuit communication or disconnection；
Multiple Balance route plates, each described Balance route plate includes：
Voltage detection unit, the voltage for detecting battery two ends；
First connecting valve, the first connecting valve series connection of multiple Balance route plates；The default electricity of one end connection first after series connection
Potential source, the first predeterminated voltage source is used to control the controlled switch conduction of first gate-controlled switch, the other end after series connection
Connect the control end of first gate-controlled switch；
Control unit, is connected with the voltage detection unit, for when the voltage detection unit detection on the Balance route plate
When voltage to battery two ends is more than the first predeterminated voltage, first connecting valve on the Balance route plate is controlled to break
Open.
2. the safety management system of high pressure lithium battery pack failure according to claim 1, it is characterised in that also including at least
One the second gate-controlled switch, the controlled switch of second gate-controlled switch is connected in battery pack charge or discharge loop, is used for
Control battery charge or discharge circuit communication or disconnection；
Correspondingly, each described Balance route plate also includes：
Second connecting valve, the second connecting valve series connection of multiple Balance route plates；The default electricity of one end connection second after series connection
Potential source, the second predeterminated voltage source is used to control the controlled switch conduction of second gate-controlled switch, the other end after series connection
Connect the control end of second gate-controlled switch；
Described control unit, be additionally operable to the voltage detection unit on the Balance route plate detect battery two ends voltage it is big
When the second predeterminated voltage, second connecting valve on the Balance route plate is controlled to disconnect.
3. the safety management system of high pressure lithium battery pack failure according to claim 1, it is characterised in that also include：
Master controller, is connected, for when the battery respectively with the voltage detection unit on multiple Balance route plates
When the voltage for having battery two ends in bag reaches three predeterminated voltages, control charger stops charging.
4. the safety management system of high pressure lithium battery pack failure according to claim 3, it is characterised in that the described 3rd is pre-
If voltage is less than first predeterminated voltage.
5. the safety management system of high pressure lithium battery pack failure according to claim 3, it is characterised in that also include：
Temperature detecting unit, the temperature for detecting battery in battery bag；
Control end of the master controller also with the temperature detecting unit, first gate-controlled switch is connected respectively, for working as
When the temperature of battery is more than the first preset temperature value in battery bag, control battery charge or discharge loop disconnects.
6. the safety management system of high pressure lithium battery pack failure according to claim 1, it is characterised in that also include：
First temperature switch, the control end with first gate-controlled switch is connected, the temperature for detecting battery in battery bag, and
And when the temperature of battery in battery bag is more than the second preset temperature value, control battery charge or discharge loop disconnects.
7. the safety management system of high pressure lithium battery pack failure according to claim 1, it is characterised in that also include：
Second temperature is switched, the temperature for detecting battery in battery bag, and when the temperature for detecting battery in battery bag is big
When three preset temperature values, control instruction is produced；
Heat sink, for according to control instruction, to the battery cooling in battery bag.
8. the safety management system of high pressure lithium battery pack failure according to claim 3, it is characterised in that also include：
Current detecting unit, for detecting the electric current in battery bag in battery charge or discharge loop；
The master controller is also connected with the current detecting unit, for being more than when the electric current in battery charge or discharge loop
During pre-set current value, the charge or discharge loop is controlled to disconnect.
9. the safety management system of high pressure lithium battery pack failure according to claim 1, it is characterised in that described first can
The two ends for controlling switch are also parallel with the 3rd gate-controlled switch and current-limiting resistance, the controlled switch and the limit of the 3rd gate-controlled switch
Leakage resistance is in parallel；
The system also includes disconnecting switch, and the order of function of short circuit detection is opened for receiving, and controls the described 3rd controllable
Switch conduction or disconnection；The control end of the 3rd gate-controlled switch is connected with the disconnecting switch.
10. the safety management system of high pressure lithium battery pack failure according to claim 3, it is characterised in that the battery
When bag is connected with load, the two ends of the load are also parallel with sensitivity resistor and optocoupler；
The primary side of the optocoupler is connected with the sensitivity resistor；One end connection power supply of the secondary of the optocoupler, the other end connects
Connect detection resistance；
The master controller is also connected with the detection resistance, and predeterminated voltage is less than for the voltage when the detection resistance two ends
First gate-controlled switch is controlled to disconnect during value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621255594.1U CN206226070U (en) | 2016-11-17 | 2016-11-17 | A kind of safety management system of high pressure lithium battery pack failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621255594.1U CN206226070U (en) | 2016-11-17 | 2016-11-17 | A kind of safety management system of high pressure lithium battery pack failure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206226070U true CN206226070U (en) | 2017-06-06 |
Family
ID=58790954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621255594.1U Expired - Fee Related CN206226070U (en) | 2016-11-17 | 2016-11-17 | A kind of safety management system of high pressure lithium battery pack failure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206226070U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374588A (en) * | 2016-11-17 | 2017-02-01 | 深圳市盈动力科技有限公司 | Safety management system of high-voltage lithium battery pack failure |
| CN110138034A (en) * | 2019-05-22 | 2019-08-16 | 杭州士腾科技有限公司 | The concatenated discrete signal detection circuit of double cell packet |
| CN112793464A (en) * | 2020-12-31 | 2021-05-14 | 航天重型工程装备有限公司 | Charging control device, system and method for battery box of electric vehicle and electric vehicle |
| WO2021223729A1 (en) * | 2020-05-07 | 2021-11-11 | 南京德朔实业有限公司 | Battery pack and electric tool system |
-
2016
- 2016-11-17 CN CN201621255594.1U patent/CN206226070U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374588A (en) * | 2016-11-17 | 2017-02-01 | 深圳市盈动力科技有限公司 | Safety management system of high-voltage lithium battery pack failure |
| CN106374588B (en) * | 2016-11-17 | 2018-04-10 | 深圳市盈动力科技有限公司 | A kind of safety management system of high pressure lithium battery pack failure |
| WO2018090438A1 (en) * | 2016-11-17 | 2018-05-24 | 深圳市盈动力科技有限公司 | High-voltage lithium battery pack fault safety management system |
| CN110138034A (en) * | 2019-05-22 | 2019-08-16 | 杭州士腾科技有限公司 | The concatenated discrete signal detection circuit of double cell packet |
| WO2021223729A1 (en) * | 2020-05-07 | 2021-11-11 | 南京德朔实业有限公司 | Battery pack and electric tool system |
| CN114730925A (en) * | 2020-05-07 | 2022-07-08 | 南京泉峰科技有限公司 | Battery pack and electric tool system |
| CN112793464A (en) * | 2020-12-31 | 2021-05-14 | 航天重型工程装备有限公司 | Charging control device, system and method for battery box of electric vehicle and electric vehicle |
| CN112793464B (en) * | 2020-12-31 | 2022-12-13 | 航天重型工程装备有限公司 | Charging control device, system and method for battery box of electric vehicle and electric vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106374588B (en) | A kind of safety management system of high pressure lithium battery pack failure | |
| US11522370B2 (en) | Equalization circuit, a charging device and an energy storage device | |
| CN100514741C (en) | Battery pack | |
| CN206226070U (en) | A kind of safety management system of high pressure lithium battery pack failure | |
| CN101145686B (en) | Power tool | |
| CN203398772U (en) | Multi-section lithium battery protection system | |
| KR102149065B1 (en) | Rechargeable battery systems and rechargeable battery system operational methods | |
| CN202856431U (en) | Control system for avoiding battery floating charge and power supply system | |
| CN107086629A (en) | High pressure lithium battery pack charge-discharge control system and increasing process control method | |
| CN107231015A (en) | A kind of battery, terminal and charging system | |
| CN102035187B (en) | Charger, discharge protection device, controller, charge and discharge protection device and system | |
| WO2018019127A1 (en) | Large-power portable lithium battery pack for electric tool | |
| CN104348215A (en) | Charger, battery module, and systems and methods for identifying and monitoring a battery charger | |
| KR20150088239A (en) | Circuit for managing the charge of a battery | |
| CN111934416B (en) | Uninterrupted power supply battery hot plug device | |
| CN104300606A (en) | Multi-string battery protection system | |
| CN206865176U (en) | High pressure lithium battery pack charge-discharge control system | |
| CN104885325A (en) | Ower-supplying device | |
| CN107294057A (en) | Protection device and method, electric power system | |
| CN102195318A (en) | Battery state monitoring circuit and battery device | |
| CN101783519A (en) | Charger management circuit | |
| KR20140143711A (en) | Charge/discharge control circuit and battery device | |
| CN104009509A (en) | Switch circuit, semiconductor device, and battery device | |
| CN106532916B (en) | A kind of battery group parallel operation control method | |
| CN108011415A (en) | A kind of Power Management Unit chip of integrated battery protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 Termination date: 20181117 |