CN207588500U - A kind of multi-series lithium battery Protection control system and control circuit - Google Patents
A kind of multi-series lithium battery Protection control system and control circuit Download PDFInfo
- Publication number
- CN207588500U CN207588500U CN201721681693.0U CN201721681693U CN207588500U CN 207588500 U CN207588500 U CN 207588500U CN 201721681693 U CN201721681693 U CN 201721681693U CN 207588500 U CN207588500 U CN 207588500U
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- module
- port
- control
- electric discharge
- lithium battery
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Abstract
The utility model discloses a kind of multi-series lithium battery Protection control system and control circuits,Including port of discharging,Control of discharge module,The electric discharge irreversible module in port,Identification module,Multi-series lithium battery group and power module,Electric discharge port is electrically connected with the electric discharge irreversible module in port,Discharge the irreversible module in port respectively with power module,Control of discharge module is electrically connected,Control of discharge module respectively with multi-series lithium battery group,Identification module and power module electrical connection,Multi-series lithium battery group is electrically connected with identification module,When charging unit is accessed in port of discharging,The electric discharge irreversible module in port is triggered,Control of discharge module is controlled to close the electric discharge of electric discharge port,When charging unit is removed from electric discharge port,The irreversible module control control of discharge module conducting in electric discharge port is discharged,Such structure,Electric discharge port can only discharge,It cannot charge,It effectively prevents electric discharge port and is used for the explosion hazard on fire that the failure of multi-series lithium battery Protection control system is brought caused by charging.
Description
Technical field
The utility model is related to a kind of control circuit technical fields more particularly to a kind of electric discharge port step that can only discharge to fill
The more serial lithium battery Protection control systems and control circuit of electricity.
Background technology
The charge and discharge of the multi-series lithium battery protection board of the prior art generally comprise following several：1st, charge and discharge are same mouths, this
A port can both discharge, and can also charge, and 2, electric discharge port and charging port are half separated, that is, discharge loop does not have
By charging port, but charge circuit passes through discharge port.3rd, electric discharge and charging divide mouth to be namely charged and discharged and divide completely entirely
It opens.
The first circuit, charging and discharging are be easy to cause with the defects of mouth burns mos pipes, and after fully charged, charging mos pipes are
Do not allow to charge through closing, be large current discharge at this time, and the mos pipes that discharge have little time to open and be forced through the bypass two of mos pipes
Grade pipe super-high-current is thus easily damaged charging mos pipes, may cause charging mos tube short circuits, the failure of such charge protection from
And seriously overcharged or it is on fire from explosion wait danger.When the under-voltage electric discharge mos pipes of cell voltage are closed, high current
It is easy to charge to damage electric discharge mos pipes.Second of circuit, electric discharge port and charging port are half to separate, it the defects of be also to hold
Mos pipes are easily burnt, when the short circuit of electric discharge port, and discharge port short circuit does not release, and goes to charge at this time, and charging can activate electric discharge defeated
Go out, easily burn electric discharge mos pipes in this way.When the under-voltage electric discharge mos pipes of cell voltage are closed, large current charge easily makes to put
Electric mos pipes damage.If consumer's mistake discharge port when charge port is come with regard to danger close, be easy to causeing over-charging of battery damage in this way
Bad battery, the danger such as on fire can seriously explode.The third circuit, electric discharge and charging divide mouth to be namely charged and discharged and divide completely entirely
Open, it the defects of be that discharge port does not have charge protection, if consumer's mistake using discharge port come charge also can danger close, easily
It causes to charge and the danger such as does not protect, charge port mistake is used for discharging, also without Cross prevention, also without short-circuit protection and overcurrent
Protection, equally also can danger close.
Utility model content
For shortcoming present in above-mentioned technology, the utility model provides a kind of multi-series lithium battery protection control system
System by the setting electric discharge irreversible module in port, reaches the function of electric discharge port blocking charging, protects multi-series lithium battery.
To achieve the above object, the utility model provides a kind of multi-series lithium battery Protection control system, including electric discharge port,
Control of discharge module, the irreversible module in electric discharge port, identification module, multi-series lithium battery group and power module, the electric discharge port
With electric discharge the irreversible module in port be electrically connected, it is described discharge the irreversible module in port respectively with power module, control of discharge module
Electrical connection, the control of discharge module are electrically connected respectively with multi-series lithium battery group, identification module and power module, more string lithiums
Battery pack is electrically connected with identification module, and when charging unit is accessed in port of discharging, the electric discharge irreversible module in port is triggered, and controls
Control of discharge module closes port electric discharge of discharging, and when charging unit is removed from electric discharge port, the irreversible module in electric discharge port controls
The conducting of control of discharge module is discharged.
Further, further include protection module, the protection module respectively with control of discharge module, identification module and more strings
Lithium battery group is electrically connected, and protection module protects the electric discharge of control of discharge module.
Further, charging port and charge control module are gone back, the charging port is electrically connected with charge control module, institute
Charge control module is stated to be electrically connected with identification module and power module respectively.
Further, balance module is further included, the balance module is electrically connected with multi-series lithium battery group.
Further, further include the irreversible module of charging, the irreversible module of charging respectively with identification module and charging
Control module is electrically connected, and when charging port connects electric discharge device, the irreversible module of charging port is triggered, control charging
Control module charge closing port is charged, and when electric discharge device is removed from charging port, the irreversible module control of charging port is charged
Control module conducting is charged.
Further, the electric discharge irreversible module in port includes the first metal-oxide-semiconductor and the 2nd MOS is managed, the first MOS
Pipe and the second metal-oxide-semiconductor connect control of discharge module, identification module and electric discharge port respectively.
Further, the irreversible module of the charging includes third metal-oxide-semiconductor and the 4th metal-oxide-semiconductor, the third metal-oxide-semiconductor and the
Four metal-oxide-semiconductors connect charge control module, identification module and charging port respectively.
A kind of multi-series lithium battery protection control circuit, more strings described in including above-mentioned any one are also disclosed in the utility model
Li-ion cell protection control system.
The beneficial effects of the utility model are：
The utility model between electric discharge port and control of discharge module and power module by setting a discharge end
The irreversible module of mouth, when charging unit is connected to electric discharge port, the electric discharge irreversible module in port will be recognized, be put so as to close
The discharging function of electric port, while charge circuit is controlled to achieve the effect that charge.If charging unit removes, port of discharging
Irreversible module just controls control of discharge module recovery regular picture.Such structure detaches charging port with electric discharge port,
And electric discharge port can only discharge, it is impossible to charge, electric discharge port is controlled, effectively prevent electric discharge port and be used for filling
The explosion hazard on fire that the failure of multi-series lithium battery Protection control system is brought caused by electricity.
Description of the drawings
Fig. 1 is the utility model multi-series lithium battery Protection control system block diagram；
Fig. 2 is the utility model electric discharge irreversible module metal-oxide-semiconductor control section circuit diagram in port；
The irreversible module metal-oxide-semiconductor control section circuit diagram of Fig. 3 positions the utility model charging port；
The corresponding circuits control schematic diagram of Fig. 4 positions the utility model balance module.
Specific embodiment
In order to more clearly state the utility model, the utility model is further described below in conjunction with the accompanying drawings.
Referring to Fig. 1, the utility model discloses a kind of multi-series lithium battery Protection control system to achieve the above object, including
Discharge port 1, control of discharge module 3, the irreversible module 2 in electric discharge port, identification module 5, multi-series lithium battery group 6 and power module
4, electric discharge port 1 with electric discharge the irreversible module 2 in port be electrically connected, discharge the irreversible module 2 in port respectively with power module 4, put
Electric control module 3 is electrically connected, and control of discharge module 3 is electrically connected respectively with multi-series lithium battery group 6, identification module 5 and power module 4
It connecing, multi-series lithium battery group 6 is electrically connected with identification module 5, when charging unit (not shown) is accessed in port 1 of discharging, port of discharging
Irreversible module 2 is triggered, and control control of discharge module 3 closes the electric discharge of electric discharge port, when charging unit is moved from electric discharge port 1
It removes, electric discharge 1 irreversible module of port control control of discharge module conducting is discharged.
Referring to Fig. 2, in the present embodiment, connect between electric discharge port 1 and control of discharge module 3 and power module 4
An electric discharge irreversible module 2 in port is connect, the variation of current value is detected in real time by it, controls entire control of discharge module 3 not
It discharges again, in the present embodiment, the electric discharge irreversible module 2 in port passes through the first metal-oxide-semiconductor and the second metal-oxide-semiconductor and its periphery electricity
Road is composed, and control of discharge module 3 is controlled using microcontroller, and the first metal-oxide-semiconductor T1 reversely connects with the second metal-oxide-semiconductor T2, and
The control chip U1 of common connection control of discharge module 3, the i.e. drain electrode of the first metal-oxide-semiconductor T1 are connect with the source electrode of the second metal-oxide-semiconductor, and
The drain electrode of first metal-oxide-semiconductor T1 is connect with the source electrode of the second metal-oxide-semiconductor T2 with electric discharge interface jointly, the base stage string of the first metal-oxide-semiconductor T1
It is connect after one resistance of connection with control chip U1, the base stage of the second metal-oxide-semiconductor T2 is connected the cathode of a resistance, diode D5 respectively
And connect after the emitter of triode S5 with control chip U1, control chip U1 is including by by zener diode D4 and multiple
The peripheral circuit of the compositions such as capacitance, resistance, in order to work normally.In regular picture, the first metal-oxide-semiconductor T1 conductings are led to
It crosses at X and discharges, when port of discharging connects charging unit, at this point, the drain electrode of the first metal-oxide-semiconductor T1 is with the second metal-oxide-semiconductor T2's
Source voltage values increase, and so as to which the first metal-oxide-semiconductor T1 ends, and the second metal-oxide-semiconductor T2 is connected, and the Continuity signal of the second metal-oxide-semiconductor T2 passes
The chip of control of discharge module 3 is passed, so as to prevent to charge on electric discharge port 1, causes the disasters such as explosive fire accident.Further
, the quantity of the first metal-oxide-semiconductor T1, the second metal-oxide-semiconductor T2 in the utility model is not limited to there are one every samples, according to required
The size for the discharge current wanted, can be in parallel multiple, use simultaneously, in the present embodiment, simply to illustrate that its specific work
Principle is briefly explained with the connection of one group of metal-oxide-semiconductor.In other schemes, the irreversible module in port as long as it discharges
Operation principle and the utility model it is consistent, be all included in the scope of protection of the utility model.
Further, in the present embodiment, identification module 5 disclosed in the utility model is mainly used for identifying power module 4
And multi-series lithium battery group 6 voltage value and put the working condition of a control module 3.
In another embodiment, it is also connected with, there are one protection module 7, protecting between identification module 5 and control of discharge module 3
Shield module 7 is also electrically connected with multi-series lithium battery group 6, and is separately protected, i.e., on each lithium battery, all there are one protect for connection
Circuit (not shown), protection circuit are controlled by the control chip of control of discharge module 3, with the corresponding lithium electricity being attached thereto of control
The charge and discharge in pond, and the electric discharge of control of discharge module 3 is protected simultaneously.Further, protection module 7 not only has multiple lithium batteries
Protect circuit, various kinds of protective circuit can also be included, including battery overshoot, cross put, overcurrent of discharging, the electricity such as short circuit and temperature protection
One of which or a variety of in road passes through 7 effective protection multi-series lithium battery group 6 of protection module.At work, when electric discharge port
If 1 generation short circuit, heavy duty or high current are leaked electricity, the identification electric discharge of identification module 5 port 1, which whether there is, short circuit, heavy burden
Phenomena such as load or high current are leaked electricity, if it find that these phenomenons will immediately close off control of discharge module 3, it is more so as to protect
6 damage of series lithium battery group.
Further, in another embodiment, the utility model further includes charging port 10 and charge control module 9, fills
Electric port 10 is electrically connected with charge control module 9, and charge control module 9 is connect respectively with identification module 5 and power module electricity 4.
Charging port 10 and electric discharge port 1 are completely isolated herein, constitute a charging port 10 with discharging what port 1 was kept completely separate
Structure.It when charging port 10 charges, is controlled by charge control module 9, charge control module 9 and power module 4, knowledge
Other module 5 is electrically connected, and the charge status of charging port 10 is identified by identification module 5.
Referring to Fig. 3, in one embodiment, one can also be also connected between identification module 5 and charge control module 9
The irreversible module 11 of charging port, for controlling charging port 10 that cannot discharge, in the present embodiment, charging port
Irreversible module 11 is also to be composed by the metal-oxide-semiconductor of two Opposite direction connections, i.e., respectively third metal-oxide-semiconductor T3 and the 4th MOS
Pipe T4 and its peripheral circuit, peripheral circuit include triode S1, S2, S3 and S4, diode D1, D2 and D3 and multiple resistance
It forms, under normal circumstances, charging port 10 is directly connected with third metal-oxide-semiconductor and is powered, but when the connection of charging port 10 needs
During the electric discharge device (not shown) to be discharged, then third metal-oxide-semiconductor is closed, the conducting of the 4th metal-oxide-semiconductor, the control of charge control module 9
Chip receives relevant information, then charge control module 9 is controlled to stop the charging of charging port 10, when electric discharge device disengaging is filled
When electric port 10, third metal-oxide-semiconductor continues to be connected, and the 4th metal-oxide-semiconductor is closed, so as to which charging port 10 be controlled normally to be filled
Electricity.
Further, the quantity of third the metal-oxide-semiconductor T3, the 4th metal-oxide-semiconductor T4 in the utility model are not limited to every sample and only have
One, can be in parallel multiple according to the size of required charging current, it uses simultaneously, in the present embodiment, simply to illustrate that
Its specific operation principle, is briefly explained with the connection of one group of metal-oxide-semiconductor.In other schemes, as long as its charging end
The operation principle of mouthful irreversible module and the utility model it is consistent, be all included in the scope of protection of the utility model.
In the utility model, a charge protector (not shown) is may also set up in charge control module 9, due to
Charge protector belongs to the prior art, and details are not described herein again, still, further, can be by that will fill in the utility model
Electric protection circuit is connect with the control chip in charge control module 3, the automatic charged state for detecting multi-series lithium battery group 6, into
One step, a preset value for representing charging saturation can be set, when the single lithium battery of detection reaches the preset value, filled
Electric control module 3 controls charging current to reduce, while the timing module in chip is controlled to start timing, expires when with low current charge
Predetermined time, for example the selected predetermined time is not after ten minutes, charge control module 3 automatically controls interlock circuit disconnection, no longer gives
Lithium battery charges, so as to avoid overcharging the imagination.Since the control circuit of the step is easy to implement for those skilled in the art
, therefore details are not described herein again for specific circuit, explanation herein, it is intended that it further improves in the present embodiment, in mostly string lithium electricity
In pond Protection control system and control circuit, with reference to the irreversible module 2 in electric discharge port, the technology of the irreversible module 11 of charging port
Scheme.
Further, in another embodiment, balance module 8 is further included, balance module 8 is electrically connected with multi-series lithium battery group 6
It connects, when multi-series lithium battery 6 serial connection charge of group, every batteries equalizaing charge can be ensured by balance module 8, so as to avoid using
Performance and the service life of whole group battery can be influenced in the process.In the present embodiment, balance module 8 is by multiple metal-oxide-semiconductors and resistance group
It closes, referring to Fig. 4, multiple metal-oxide-semiconductors are respectively T5-T17, multi-series lithium battery group 6 is controlled by the break-make of multiple metal-oxide-semiconductors
Charging balance.
Based on above multi-series lithium battery Protection control system, include the invention also discloses one kind above-mentioned any one
Circuit described in.
The advantage of the utility model is：
1) it discharges and an electric discharge irreversible module in port is set between port and control of discharge module and power module, when
Charging unit is connected to electric discharge port, and the electric discharge irreversible module in port will recognize, so as to close the electric discharge work(of electric discharge port
Can, while charge circuit is controlled to achieve the effect that charge, if charging unit removes, the electric discharge irreversible module in port is just controlled
Control of discharge module recovery regular picture processed, use are safer；
2) charging port is detached with electric discharge port, and port of discharging can only discharge, it is impossible to charge, to port of discharging
It is controlled, effectively prevents electric discharge port and be used for what multi-series lithium battery Protection control system failure caused by charging was brought
Explosion hazard on fire.
Disclosed above is only several specific embodiments of the utility model, but the utility model is not limited to this,
The changes that any person skilled in the art can think of should all fall into the scope of protection of the utility model.
Claims (8)
1. a kind of multi-series lithium battery Protection control system, which is characterized in that including electric discharge port, control of discharge module, discharge end
The irreversible module of mouth, identification module, multi-series lithium battery group and power module, the electric discharge port and the electric discharge irreversible module in port
Electrical connection, the electric discharge irreversible module in port are electrically connected respectively with power module, control of discharge module, the control of discharge mould
Block is electrically connected respectively with multi-series lithium battery group, identification module and power module, and the multi-series lithium battery group is electrically connected with identification module
It connects, when charging unit is accessed in port of discharging, the electric discharge irreversible module in port is triggered, and control control of discharge module closes electric discharge
Port is discharged, and when charging unit is removed from electric discharge port, the irreversible module control control of discharge module conducting in electric discharge port carries out
Electric discharge.
2. multi-series lithium battery Protection control system according to claim 1, which is characterized in that further include protection module, institute
It states protection module to be electrically connected with control of discharge module, identification module and multi-series lithium battery group respectively, protection module protection electric discharge control
The electric discharge of molding block.
3. multi-series lithium battery Protection control system according to claim 1 or 2, which is characterized in that further include charging port
And charge control module, the charging port are electrically connected with charge control module, the charge control module is respectively with identifying mould
Block and power module electrical connection.
4. multi-series lithium battery Protection control system according to claim 3, which is characterized in that further include balance module, institute
Balance module is stated to be electrically connected with multi-series lithium battery group.
5. multi-series lithium battery Protection control system according to claim 3, which is characterized in that further include the irreversible mould of charging
Block, the irreversible module of charging are electrically connected respectively with identification module and charge control module, when charging port connects electric discharge dress
When putting, the irreversible module of charging port is triggered, and electric discharge device is worked as in the charging of control charge control module charge closing port
It is removed from charging port, the irreversible module control charge control module conducting of charging port is charged.
6. multi-series lithium battery Protection control system according to claim 1, which is characterized in that the electric discharge port is irreversible
Module includes the first metal-oxide-semiconductor and the second metal-oxide-semiconductor, and first metal-oxide-semiconductor and the second metal-oxide-semiconductor connect control of discharge module, know respectively
Other module and electric discharge port.
7. multi-series lithium battery Protection control system according to claim 5, which is characterized in that the irreversible module of charging
Including third metal-oxide-semiconductor and the 4th metal-oxide-semiconductor, the third metal-oxide-semiconductor and the 4th metal-oxide-semiconductor connect charge control module, identification mould respectively
Block and charging port.
8. a kind of multi-series lithium battery protects control circuit, which is characterized in that including described in the claims 1-7 any one
The control circuit of multi-series lithium battery Protection control system composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721681693.0U CN207588500U (en) | 2017-12-06 | 2017-12-06 | A kind of multi-series lithium battery Protection control system and control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721681693.0U CN207588500U (en) | 2017-12-06 | 2017-12-06 | A kind of multi-series lithium battery Protection control system and control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN207588500U true CN207588500U (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721681693.0U Expired - Fee Related CN207588500U (en) | 2017-12-06 | 2017-12-06 | A kind of multi-series lithium battery Protection control system and control circuit |
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| CN (1) | CN207588500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834661A (en) * | 2017-12-06 | 2018-03-23 | 深圳市超能威电子有限公司 | A kind of multi-series lithium battery Protection control system and control circuit |
-
2017
- 2017-12-06 CN CN201721681693.0U patent/CN207588500U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834661A (en) * | 2017-12-06 | 2018-03-23 | 深圳市超能威电子有限公司 | A kind of multi-series lithium battery Protection control system and control circuit |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180706 Termination date: 20211206 |
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| CF01 | Termination of patent right due to non-payment of annual fee |