CN108183529A - The intercom lithium battery and its equalization methods of a kind of fast uniform - Google Patents
The intercom lithium battery and its equalization methods of a kind of fast uniform Download PDFInfo
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- CN108183529A CN108183529A CN201810124913.2A CN201810124913A CN108183529A CN 108183529 A CN108183529 A CN 108183529A CN 201810124913 A CN201810124913 A CN 201810124913A CN 108183529 A CN108183529 A CN 108183529A
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- battery
- electronic switch
- microcontroller
- voltage
- mcu
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Classifications
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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
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
Abstract
The present invention provides a kind of the intercom lithium battery and its equalization methods of fast uniform, the intercom lithium battery includes the battery pack being composed in series by the first single battery and second comonomer battery, the first electronic switch being connect with the battery pack, 4th electronic switch and super capacitor, so that battery pack charges to super capacitor, the first electronic switch being connect with the first single battery, third electronic switch and super capacitor, so that super capacitor charges to the first single battery, the second electronic switch being connect with second comonomer battery, 4th electronic switch and super capacitor, so that super capacitor charges to second comonomer battery.The present invention's has the function of the intercom lithium battery of fast uniform and its equalization methods, it shortens the battery balanced time and improves equalization efficiency, it fully can extend the battery pack working time using the electric energy of single battery each in battery pack, and each single battery in battery pack can be made not generate overcharge and overdischarge phenomenon.
Description
Technical field
The present invention relates to lithium battery, specifically, being related to the intercom lithium battery and its equalization methods of a kind of fast uniform.
Background technology
Battery pack is usually in series by multiple single batteries, and generally using two section lithium battery series connection groups in intercom
Into battery pack, after a period of time, the parameters such as the internal resistance of cell, voltage, capacity generate fluctuation, form inconsistent shape
State will generate such or such difference.This species diversity is presented as when battery pack is full of or discharges between series-connected cell core
Voltage differs.In this case during leading to battery pack charging, the battery of overtension triggers battery pack mistake ahead of time
Charge protection, and the battery of brownout leads to battery pack in discharge process, so as to make the whole of battery pack
Body capacity is decreased obviously, and the entire reflected capacity of battery pack is the capacity of the battery that performance is worst in battery pack so as to subtract
Few power-on time, and using when be easy to overcharge and cross and put phenomenon, and be not easy to find, lead to battery pack premature failure.
Invention content
In place of solving above-mentioned the deficiencies in the prior art, the purpose of the present invention is to provide a kind of intercommunications of fast uniform
Machine lithium battery and its equalization methods, the defects of to overcome in the prior art.
To achieve these goals, the present invention provides a kind of intercom lithium battery of fast uniform, the intercom lithiums
Battery includes the battery pack being composed in series by the first single battery and second comonomer battery, the first electronic switch, the second electronic cutting
Pass, third electronic switch, the 4th electronic switch, super capacitor and microcontroller；Wherein, the negative pole end of the first single battery and second
The positive terminal connection of single battery, and the first wiring point is set in the positive terminal of the first single battery, in the first single battery
Second wiring point is set between the positive terminal of negative pole end and second comonomer battery；The output terminal of first electronic switch and the second electronics
The output terminal of switch connects and sets third wiring point；The input terminal of second electronic switch connects with the input terminal of third electronic switch
It connects and the 4th wiring point is set；The output terminal of third electronic switch connect with the output terminal of the 4th electronic switch and sets the 5th to connect
Line point；First wiring point is connected to the left on the first observing and controlling end of microcontroller, and the first wiring point is connected to the right the first electronic cutting
The input terminal of pass, the second wiring point are connected to the left on the second observing and controlling end of microcontroller, and the second wiring point is connected to the right the 4th
On wiring point；The negative pole end of second comonomer battery is connected to the input terminal of the 4th electronic switch, the negative pole end of second comonomer battery
It is connect with the 4th electronic switch, super capacitor is accessed between third wiring point and the 5th wiring point.
As the further explanation to intercom lithium battery of the present invention, it is preferable that the first electronic switch, the second electricity
Sub switch, third electronic switch, the 4th electronic switch are MOSEFT pipes.
As the further explanation to intercom lithium battery of the present invention, it is preferable that the first electronic switch, the second electricity
Sub switch, third electronic switch, the 4th electronic switch are turned on or off by microcontroller control.
As the further explanation to intercom lithium battery of the present invention, it is preferable that the first monomer of monolithic machine testing
The voltage of battery and second comonomer battery, when the voltage difference is greater than or equal to 50mv, microcontroller control the first electricity of conducting
Sub switch and the 4th electronic switch, so that the battery pack charges to super capacitor.
As the further explanation to intercom lithium battery of the present invention, it is preferable that monolithic machine testing super capacitor
Voltage it is equal with the voltage of the battery pack when, microcontroller control disconnects the first electronic switch and the 4th electronic switch.
As the further explanation to intercom lithium battery of the present invention, it is preferable that the first monomer of monolithic machine testing
The voltage of battery and second comonomer battery, when the voltage of the first single battery is more than the voltage of second comonomer battery, microcontroller
Control the second electronic switch of conducting and the 4th electronic switch, so that super capacitor charges to second comonomer battery.
As the further explanation to intercom lithium battery of the present invention, it is preferable that the first monomer of monolithic machine testing
The voltage of battery and second comonomer battery, when the voltage of the first single battery is less than the voltage of second comonomer battery, microcontroller
Control the first electronic switch of conducting and third electronic switch, so that super capacitor charges to the first single battery.
In order to realize another object of the present invention, the present invention also provides a kind of equilibrium sides of the intercom lithium battery
Method, the equalization methods include the following steps：
Step 1)：When microcontroller detects that the first single battery and the voltage difference of second comonomer battery are greater than or equal to
During 50mv, microcontroller controls the first electronic switch and the conducting of the 4th electronic switch；
Step 2)：The battery pack charges to super capacitor, until the voltage of super capacitor and the battery pack
When voltage is equal, microcontroller control disconnects the first electronic switch and the 4th electronic switch, to keep the electricity of super capacitor；
Step 3)：When microcontroller detects that the voltage of the first single battery is more than the voltage of second comonomer battery, microcontroller
The second electronic switch and the 4th electronic switch is controlled to be connected, so that super capacitor charges to second comonomer battery, second after charging
Electronic switch and the 4th electronic switch disconnect, and complete an electricity transfer；Alternatively,
Step 4)：When microcontroller detects that the voltage of the first single battery is less than the voltage of second comonomer battery, microcontroller
The first electronic switch and third electronic switch is controlled to be connected, so that super capacitor charges to the first single battery, first after charging
Electronic switch and third electronic switch disconnect, and complete an electricity transfer；
Step 5)：It repeats the above steps, until the voltage difference of the first single battery and second comonomer battery is less than 30mv,
Then complete battery fast uniform.
The present invention's has the function of the intercom lithium battery of fast uniform and its equalization methods, solves in intercom
The capacity of lithium battery decline problem, the battery balanced time can be shortened and improve equalization efficiency, can be fully using in battery pack
The electric energy of each single battery extends the battery pack working time, and each single battery can be made in battery pack not generate and overcharged
Electricity and overdischarge phenomenon.
Description of the drawings
Fig. 1 is the circuit diagram of the intercom lithium battery fast uniform of the present invention.
Specific embodiment
It is attached in conjunction with appended preferred embodiment in order to further appreciate that structure, feature and the other purposes of the present invention
With attached drawing, detailed description are as follows, this attached drawing embodiment described is merely to illustrate technical scheme of the present invention, and non-limiting
Invention.
As shown in FIG. 1, FIG. 1 is the circuit diagrams of the intercom lithium battery fast uniform of the present invention；The intercom lithium battery
Including be composed in series by the first single battery E1 and second comonomer battery E2 battery pack, the first electronic switch S1, the second electronics
Switch S2, third electronic switch S3, the 4th electronic switch S4, super capacitor C0 and single-chip microprocessor MCU；Wherein, the first single battery
The negative pole end of E1 is connect with the positive terminal of second comonomer battery E2, and sets the first wiring in the positive terminal of the first single battery E1
Point A sets the second wiring point B between the negative pole end of the first single battery E1 and the positive terminal of second comonomer battery E2；First
The output terminal of electronic switch S1 connect with the output terminal of the second electronic switch S2 and sets third wiring point C；Second electronic switch
The input terminal of S2 connect with the input terminal of third electronic switch S3 and sets the 4th wiring point D；The output of third electronic switch S3
End connect with the output terminal of the 4th electronic switch S4 and sets the 5th wiring point E.
First wiring point A is connected to the left on the first observing and controlling end AD1 of single-chip microprocessor MCU, and the first wiring point A is connected to the right
The input terminal of first electronic switch S1, the second wiring point B are connected to the left on the second observing and controlling end AD2 of single-chip microprocessor MCU, and second connects
Line point B is connected to the right on the 4th wiring point D；The negative pole end of second comonomer battery E2 is connected to the input of the 4th electronic switch S4
End, the negative pole end of second comonomer battery E2 is connect with the 4th electronic switch S4, between third wiring point C and the 5th wiring point E
Access super capacitor C0.
The present invention be directed to the lithium battery groups that intercom uses, and the lithium battery group is by the first single battery E1 and second comonomer
Battery E2 is composed in series, wherein, the first electronic switch S1, the second electronic switch S2, third electronic switch S3, the 4th electronic switch
S4 is turned on or off by single-chip microprocessor MCU control, and single-chip microprocessor MCU is as battery voltage detection and control electronic switch, the first electronics
Switch S1, the second electronic switch S2, third electronic switch S3, the 4th electronic switch S4 are MOSEFT pipes, and super capacitor C0 makees
For electricity conversion medium, so that the first single battery E1 and second comonomer battery E2 reach fast uniform.
The first electronic switch S1, the 4th electronic switch S4 and the super capacitor C0 being connect in the present invention with the battery pack,
So that the lithium battery group charges to super capacitor C0；Single-chip microprocessor MCU detects the first single battery E1 and second comonomer battery
The voltage of E2, when the voltage difference is greater than or equal to 50mv, single-chip microprocessor MCU control conducting the first electronic switch S1 and the 4th
Electronic switch S4, so that the battery pack charges to super capacitor C0；Then, the voltage of single-chip microprocessor MCU detection super capacitor C0
When equal with the voltage of the battery pack, single-chip microprocessor MCU control disconnects the first electronic switch S1 and the 4th electronic switch S4.
The first electronic switch S1, third electronic switch S3 and the super capacitor being connect in the present invention with the first single battery E1
C0, so that super capacitor C0 charges to the first single battery E1；It is single that single-chip microprocessor MCU detects the first single battery E1 and second
The voltage of body battery E2, when the voltage of the first single battery E1 is less than the voltage of second comonomer battery E2, single-chip microprocessor MCU control
The first electronic switch S1 and third electronic switch S3 is connected, so that super capacitor C0 charges to the first single battery E1.
The second electronic switch S2, the 4th electronic switch S4 and the super capacitor being connect in the present invention with second comonomer battery E2
C0, so that super capacitor C0 charges to second comonomer battery E2, it is single that single-chip microprocessor MCU detects the first single battery E1 and second
The voltage of body battery E2, when the voltage of the first single battery E1 is more than the voltage of second comonomer battery E2, single-chip microprocessor MCU control
The second electronic switch S2 and the 4th electronic switch S4 is connected, so that super capacitor C0 charges to second comonomer battery E2.
The present invention also provides a kind of equalization methods of the intercom lithium battery, the equalization methods include following step
Suddenly：
First, single-chip microprocessor MCU detects the first single battery E1 respectively by the first observing and controlling end AD1 and the second observing and controlling end AD2
With the voltage of second comonomer battery E2 and calculate voltage difference, when single-chip microprocessor MCU detects that the first single battery E1 and second is single
When the voltage difference of body battery E2 is greater than or equal to 50mv, single-chip microprocessor MCU controls the first electronic switch S1 and the 4th electronic switch
S4 is connected；First single battery E1, second comonomer battery E2, the 4th electronic switch S4, super capacitor C0 and the first electronic switch
S1 forms circulation loop, and the battery pack is made to charge super capacitor C0, charge to the voltage of super capacitor C0 with it is described
When the voltage of battery pack is equal, single-chip microprocessor MCU controls the first electronic switch S1 and the 4th electronic switch S4 to disconnect, to keep super
The electricity of capacitance C0.
Then, single-chip microprocessor MCU detects the first single battery E1 respectively by the first observing and controlling end AD1 and the second observing and controlling end AD2
With the voltage and comparison voltage size of second comonomer battery E2.
When single-chip microprocessor MCU detects that the voltage of the first single battery E1 is more than the voltage of second comonomer battery E2, monolithic
Machine MCU controls the second electronic switch S2 and the 4th electronic switch S4 conductings；Second comonomer battery E2, the 4th electronic switch S4, surpass
Grade capacitance C0 and the second electronic switch S2 forms circulation loop, so that super capacitor C0 charges to second comonomer battery E2, charging
The second electronic switch S2 and the 4th electronic switch S4 is disconnected afterwards, completes an electricity transfer.
When single-chip microprocessor MCU detects that the voltage of the first single battery E1 is less than the voltage of second comonomer battery E2, monolithic
Machine MCU controls the first electronic switch S1 and third electronic switch S3 conductings；First single battery E1, third electronic switch S3, surpass
Grade capacitance C0 and the first electronic switch S1 forms circulation loop, so that super capacitor C0 charges to the first single battery E1, charging
The first electronic switch S1 and third electronic switch S3 is disconnected afterwards, completes an electricity transfer.
So repeat to be less than 30mv up to the voltage difference of the first single battery E1 and second comonomer battery E2, then it is complete
Into battery fast uniform.
The present invention's has the function of the intercom lithium battery of fast uniform and its equalization methods, is in battery set charge/discharge
When, it is in parallel with lithium battery group with super capacitor when the voltage between single battery is inconsistent, one times of point of electric energy of battery pack is stored up
The electricity that it is stored is transferred on the relatively low single battery of voltage there are in super capacitor, then by super capacitor, makes each list
The voltage of body lithium battery is consistent.It is controlled since battery voltage doubles than monomer battery voltage, super capacitor is each time
It is big that electric quantity transfered ratio carries out electric quantity transfered between single battery, shortens the battery balanced time and improves balanced effect
Rate fully can extend the battery pack working time using the electric energy of single battery each in battery pack, and can make every in battery pack
A single battery will not generate overcharge and overdischarge phenomenon.
It is to be understood that foregoing invention content and specific embodiment are intended to prove technical solution provided by the present invention
Practical application should not be construed as limiting the scope of the present invention.Those skilled in the art are in spirit and principles of the present invention
It is interior, when can various modifications may be made, equivalent replacement or improvement.Protection scope of the present invention is subject to the appended claims.
Claims (8)
1. the intercom lithium battery of a kind of fast uniform, which is characterized in that the intercom lithium battery is included by the first monomer electricity
Battery pack that pond (E1) and second comonomer battery (E2) are composed in series, the first electronic switch (S1), the second electronic switch (S2),
Three electronic switches (S3), the 4th electronic switch (S4), super capacitor (C0) and microcontroller (MCU)；Wherein,
The negative pole end of first single battery (E1) is connect with the positive terminal of second comonomer battery (E2), and in the first single battery
(E1) positive terminal sets the first wiring point (A), in negative pole end and the second comonomer battery (E2) of the first single battery (E1)
Second wiring point (B) is set between positive terminal；The output of the output terminal and the second electronic switch (S2) of first electronic switch (S1)
End connects and sets third wiring point (C)；The input terminal of second electronic switch (S2) and the input terminal of third electronic switch (S3)
It connects and the 4th wiring point (D) is set；The output terminal of the output terminal of third electronic switch (S3) and the 4th electronic switch (S4) connects
It connects and the 5th wiring point (E) is set；
First wiring point (A) is connected to the left on the first observing and controlling end (AD1) of microcontroller (MCU), and the first wiring point (A) connects to the right
The input terminal of the first electronic switch (S1) is connected on, the second wiring point (B) is connected to the second observing and controlling end of microcontroller (MCU) to the left
(AD2) on, the second wiring point (B) is connected to the right on the 4th wiring point (D)；The negative pole end of second comonomer battery (E2) is connected to
The input terminal of 4th electronic switch (S4), the negative pole end of second comonomer battery (E2) are connect with the 4th electronic switch (S4),
Super capacitor (C0) is accessed between three wiring points (C) and the 5th wiring point (E).
2. intercom lithium battery as described in claim 1, which is characterized in that the first electronic switch (S1), the second electronic switch
(S2), third electronic switch (S3), the 4th electronic switch (S4) are MOSEFT pipes.
3. intercom lithium battery as described in claim 1, which is characterized in that the first electronic switch (S1), the second electronic switch
(S2), third electronic switch (S3), the 4th electronic switch (S4) are turned on or off by microcontroller (MCU) control.
4. intercom lithium battery as claimed in claim 3, which is characterized in that microcontroller (MCU) detects the first single battery
(E1) and the voltage of second comonomer battery (E2), when the voltage difference is greater than or equal to 50mv, microcontroller (MCU) control is led
Logical first electronic switch (S1) and the 4th electronic switch (S4), so that the battery pack charges to super capacitor (C0).
5. intercom lithium battery as claimed in claim 4, which is characterized in that microcontroller (MCU) detection super capacitor (C0)
When voltage is equal with the voltage of the battery pack, microcontroller (MCU) control disconnects the first electronic switch (S1) and the 4th electronic cutting
It closes (S4).
6. intercom lithium battery as claimed in claim 5, which is characterized in that microcontroller (MCU) detects the first single battery
(E1) and the voltage of second comonomer battery (E2), when the voltage of the first single battery (E1) is more than the electricity of second comonomer battery (E2)
During pressure, microcontroller (MCU) control the second electronic switch of conducting (S2) and the 4th electronic switch (S4), so that super capacitor (C0) is right
Second comonomer battery (E2) charges.
7. intercom lithium battery as claimed in claim 5, which is characterized in that microcontroller (MCU) detects the first single battery
(E1) and the voltage of second comonomer battery (E2), when the voltage of the first single battery (E1) is less than the electricity of second comonomer battery (E2)
During pressure, microcontroller (MCU) control the first electronic switch of conducting (S1) and third electronic switch (S3), so that super capacitor (C0) is right
First single battery (E1) charges.
A kind of 8. equalization methods of intercom lithium battery as described in claim 1-7 is any, which is characterized in that the equilibrium side
Method includes the following steps：
Step 1)：When microcontroller (MCU) detects that the voltage difference of the first single battery (E1) and second comonomer battery (E2) is big
When 50mv, microcontroller (MCU) controls the first electronic switch (S1) and the conducting of the 4th electronic switch (S4)；
Step 2)：The battery pack charges to super capacitor (C0), until the voltage of super capacitor (C0) and the battery
When the voltage of group is equal, microcontroller (MCU) control disconnects the first electronic switch (S1) and the 4th electronic switch (S4), to keep super
The electricity of grade capacitance (C0)；
Step 3)：Microcontroller (MCU) detects that the voltage of the first single battery (E1) is more than the voltage of second comonomer battery (E2)
When, microcontroller (MCU) controls the second electronic switch (S2) and the 4th electronic switch (S4) to be connected, so that super capacitor (C0) is to the
Two single batteries (E2) charge, and the second electronic switch (S2) and the 4th electronic switch (S4) disconnect after charging, complete an electricity
Transfer；Alternatively,
Step 4)：Microcontroller (MCU) detects that the voltage of the first single battery (E1) is less than the voltage of second comonomer battery (E2)
When, microcontroller (MCU) controls the first electronic switch (S1) and third electronic switch (S3) to be connected, so that super capacitor (C0) is to the
One single battery (E1) charges, and the first electronic switch (S1) and third electronic switch (S3) disconnect after charging, complete an electricity
Transfer；
Step 5)：It repeats the above steps, until the voltage difference of the first single battery (E1) and second comonomer battery (E2) is less than
30mv then completes battery fast uniform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810124913.2A CN108183529A (en) | 2018-02-08 | 2018-02-08 | The intercom lithium battery and its equalization methods of a kind of fast uniform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810124913.2A CN108183529A (en) | 2018-02-08 | 2018-02-08 | The intercom lithium battery and its equalization methods of a kind of fast uniform |
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| CN108183529A true CN108183529A (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2012186881A (en) * | 2011-03-03 | 2012-09-27 | Japan Aerospace Exploration Agency | One piece voltage equalization circuit of storage cells connected in series |
| CN103326439A (en) * | 2013-06-28 | 2013-09-25 | 安科智慧城市技术（中国）有限公司 | Equalization circuit of battery pack and equalization method |
| CN105140992A (en) * | 2015-08-31 | 2015-12-09 | 卢小明 | Battery electric quantity equalization system |
| CN105656142A (en) * | 2016-03-10 | 2016-06-08 | 北京航空航天大学 | Charge and discharge active equalization circuit of lithium-ion power battery pack |
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2018
- 2018-02-08 CN CN201810124913.2A patent/CN108183529A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101262138A (en) * | 2007-12-05 | 2008-09-10 | 奇瑞汽车股份有限公司 | Monocase balanced system for lithium ion dynamic battery |
| CN101692506A (en) * | 2009-09-25 | 2010-04-07 | 北京北方专用车新技术发展有限公司 | Active equalization method for lithium ion battery pack in charging state |
| JP2012186881A (en) * | 2011-03-03 | 2012-09-27 | Japan Aerospace Exploration Agency | One piece voltage equalization circuit of storage cells connected in series |
| CN103326439A (en) * | 2013-06-28 | 2013-09-25 | 安科智慧城市技术（中国）有限公司 | Equalization circuit of battery pack and equalization method |
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