CN206293929U - Eight string batteries and the charge protection device for filling - Google Patents
Eight string batteries and the charge protection device for filling Download PDFInfo
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- CN206293929U CN206293929U CN201621411797.5U CN201621411797U CN206293929U CN 206293929 U CN206293929 U CN 206293929U CN 201621411797 U CN201621411797 U CN 201621411797U CN 206293929 U CN206293929 U CN 206293929U
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The utility model is related to a kind of eight string battery and the charge protection device for filling, including the eight string battery packs that lithium-ion battery monomer is constituted, it is characterized in that：The eight string battery pack is connected with monomer voltage acquisition module, cell-temperature monitoring module and control monomer charge-discharge circuit, control monomer charge-discharge circuit is connected with charger, monomer voltage acquisition module and cell-temperature monitoring module are connected with MCU, the MCU is connected with control monomer charge-discharge circuit module, charger and MCU connection system power supplys.Beneficial effect：Compared with prior art, the utility model be used for battery pack and fill protection.Outside charger protection, the protection of battery itself is realized, the more accurate voltage data of charger is sent to by communication.Solve battery pack and fill mouth and there are short-circuit risks and prevent the monomer of battery from occurring overcharging and crossing putting failure.
Description
Technical field
The utility model belongs to lithium battery group field, more particularly to a kind of eight string battery and the charge protection device that fills.
Background technology
It is all to detect when any monomer occurs over-pressed or under-voltage to disconnect to carry out super-charge super-discharge protection to multi-string battery at present
The protection device concatenated with battery pack, and during charging, due to and charger be the monomer of multi-string battery is charged or
Person discharges, if according to Legacy protected mode, it is impossible to which monomer is protected, under there is no a battery protection partial picture, and battery list
The super-charge super-discharge of body by charger control, due to and to fill be that to carry out charge and discharge to cell electrically operated, so needing to each list
Body design protection device, factory's battery pack urgently to be resolved hurrily and fill mouth presence short-circuit risks and prevent the monomer of battery from occurring
Overcharge and cross the technical barrier for putting failure.
Utility model content
The utility model is to overcome deficiency of the prior art, there is provided a kind of eight string battery and the charge protection dress for filling
Put, solve battery pack and fill mouth and there are short-circuit risks and prevent the monomer of battery from occurring overcharging and crossing putting failure.
The utility model to achieve the above object, is achieved through the following technical solutions, a kind of eight string battery and the charging filled
Protection device, including the eight string battery packs that lithium-ion battery monomer is constituted, it is characterized in that：Eight strings battery pack and the monomer voltage
Acquisition module, cell-temperature monitoring module and the charge-discharge circuit connection of control monomer, control monomer charge-discharge circuit and charger
Connection, monomer voltage acquisition module and cell-temperature monitoring module be connected with MCU, the MCU and controls monomer charge-discharge circuit
Module is connected, and charger is connected by 485 communication modules with MCU.
The acquisition module of the monomer voltage selects high-tension battery monitor, realizes the collection to monomer voltage.
The cell-temperature monitoring module gathers the temperature of lithium-ion battery monomer using thermal resistor.
The control monomer charge-discharge circuit lithium-ion battery monomer with and concatenate FET respectively between filling mouth, lead to
Cross the protection to lithium-ion battery monomer super-charge super-discharge during controlling each FET to realize and fill.
The system power supply by insulating power supply module U17 give IIC communications portion provide insulating power supply, with and charger it
Between realize isolation communication, SCK and SDA by magnetic coupling isolating chip U13 realize isolation communication；RS485 communications are led to by 485
Letter isolation module U12 and charger communication, by the communication protocol and the simultaneously charger exchange data that make.
Beneficial effect：Compared with prior art, the utility model be used for battery pack and fill protection.It is protected in charger
Outward, the protection of battery itself is realized, the more accurate voltage data of charger is sent to by communication.Solve battery pack and fill
There are short-circuit risks and prevent the monomer of battery from occurring overcharging and crossing putting failure in mouth.
Brief description of the drawings
Fig. 1 is catenation principle block diagram of the present utility model；
Fig. 2 is monomer voltage collection, and monitoring temperature controls monomer charge-discharge circuit schematic diagram；
Fig. 3 is power circuit principle figure；
Fig. 4 is communications portion circuit theory diagrams.
Specific embodiment
Below in conjunction with preferred embodiment, to the specific embodiment according to the utility model offer, details are as follows：Refer to attached
Fig. 1, present embodiments provides a kind of eight string battery and the charge protection device for filling, including eight strings that lithium-ion battery monomer is constituted
Battery pack, the eight string battery pack and monomer voltage acquisition module, cell-temperature monitoring module and control monomer charge-discharge circuit
Connection, control monomer charge-discharge circuit is connected with charger, and monomer voltage acquisition module and cell-temperature monitoring module connect with MCU
Connect, the MCU is connected with control monomer charge-discharge circuit module, charger and MCU connection system power supplys.The monomer voltage
Acquisition module selects high-tension battery monitor, realizes the collection to monomer voltage.The cell-temperature monitoring module uses temperature-sensitive
Resistor gathers the temperature of lithium-ion battery monomer.The control monomer charge-discharge circuit lithium-ion battery monomer with and fill mouth
Between concatenate FET respectively, by controlling each FET to realize and lithium-ion battery monomer being overcharged during filling
The protection put.The system power supply provides insulating power supply by insulating power supply module U17 to IIC communications portion, with simultaneously charger
Between realize isolation communication, SCK and SDA by magnetic coupling isolating chip U13 realize isolation communication；RS485 communications pass through 485
Communication isolation module U12 and charger communication, by the communication protocol and the simultaneously charger exchange data that make.
The course of work
Accompanying drawing 2 is referred to, monomer voltage collection, cell-temperature monitoring, control monomer charge-discharge circuit use U2 (LTC6803
Multiple batteries monitor) collection of the realization to monomer voltage, battery temperature is gathered using thermal resistor NTC, and fill mouth and list
MOS, Q1--Q9 are concatenated between body battery, is realized by controlling each MOS, and the guarantor to monomer super-charge super-discharge is realized during filling
Shield.
Accompanying drawing 3,4 is referred to, system power supply provides insulating power supply by U17 to IIC communications portion：+ 5V-IIC, GND-IIC, with
And isolation communication is realized between charger, SCK and SDA realizes isolation communication by U13.RS485 communications are by U12 with filling
Electrical communication, can by the communication protocol that makes with and charger exchange data.
Battery in the state of not connected charger, battery and fill between mouth and battery cell and disconnected by Q1-Q9MOS,
And fill mouth and there is no voltage, be not in short-circuit risks.
Advanced trip temperature monitoring after battery connection charger, there is low temperature (0 DEG C of ＜, can software design patterns) or excess temperature (＞ 70
DEG C, can software design patterns), and fill protection board and close output, forbid charging.
When and charger charging modes for after first string fills and when filling, battery pack and to fill mouth be usually closed mode, lead to
The MOSFET for concatenating for crossing and filling between mouth and monomer disconnects.Battery pack and to fill mouth not charged, prevent short trouble.Even
After connecing charger, first pass through communication and be sent to and fill protection board start-up command, protection board simultaneously fills mouth opening, and fill mouth and connect with monomer
Connect, start to charge normal, the real time data of battery is sent instructions inquiry by charger in charging process, protection board is sent to charging
Device.After overpressure situation occurs, can force to stop charging by turning off corresponding MOSFET.
Passive equilibrium (by charger to being discharged compared with high monomer) charging after simultaneously charger charging modes fill first to go here and there
After device enters passive balanced mode, if battery charger failure, prevent monomer from occurring putting phenomenon, and fill protection board can be by list
The monitor in real time of bulk voltage, closes corresponding MOSFET, forces to stop electric discharge.
By the communication protocol for making, battery can be communicated with by RS485 or IIC with charger, real-time Transmission
Battery cell voltage and temperature data.
Operation principle
Voltage, monitoring temperature are carried out to 8 string batteries by the special monitoring chip of lithium ion battery, and produces corresponding control
Signal, the control signal be used for control monomer with and fill the metal-oxide-semiconductor that mouth is concatenated, realized by the switch of metal-oxide-semiconductor to any list
Body battery and and the break-make control filled between mouth, and then realize various defencive functions.
And during charging, do not have in the case of battery compartment protection device, the super-charge super-discharge of battery cell is by charger control.
After increasing battery compartment protection device, in the case of battery charger failure, can prevent from that battery is caused to overcharge or cross to put.Colleague can be with
Prevent and fill mouth in a short-circuit situation, the short trouble of battery occur.Being communicated by RS485 or IIC can be battery cell
The real time data of voltage and temperature is sent to charger, improves acquisition precision of the charger to monomer voltage.
A kind of above-mentioned detailed description carried out to eight string battery and the charge protection device that fills with reference to embodiment, is explanation
Property rather than limited, several embodiments can be included according to limited scope, therefore do not departing from the utility model
Changing and modifications under general plotting, should belong within protection domain of the present utility model.
Claims (5)
1. a kind of eight string battery and the charge protection device that fills, including lithium-ion battery monomer composition eight string battery packs, it is special
Levying is：The eight string battery pack connects with monomer voltage acquisition module, cell-temperature monitoring module and control monomer charge-discharge circuit
Connect, control monomer charge-discharge circuit is connected with charger, monomer voltage acquisition module and cell-temperature monitoring module connect with MCU
Connect, the MCU is connected with control monomer charge-discharge circuit module, charger and MCU connection system power supplys.
2. eight string battery according to claim 1 and the charge protection device that fills, it is characterized in that：The monomer voltage is adopted
Collection module selects high-tension battery monitor, realizes the collection to monomer voltage.
3. eight string battery according to claim 1 and the charge protection device that fills, it is characterized in that：The cell-temperature monitoring
Module gathers the temperature of lithium-ion battery monomer using thermal resistor.
4. eight string battery according to claim 1 and the charge protection device that fills, it is characterized in that：The control monomer charge and discharge
Circuit lithium-ion battery monomer with and concatenate FET respectively between filling mouth, realized simultaneously by controlling each FET
To the protection of lithium-ion battery monomer super-charge super-discharge during filling.
5. eight string battery according to claim 1 and the charge protection device that fills, it is characterized in that：The system power supply by every
There is provided insulating power supply to IIC communications portion from power module U17, with and charger between realize and isolate communication, SCK with
SDA realizes isolation communication by magnetic coupling isolating chip U13；RS485 communications pass through 485 communication isolation module U12 and charger
Communication, by the communication protocol and the simultaneously charger exchange data that make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621411797.5U CN206293929U (en) | 2016-12-22 | 2016-12-22 | Eight string batteries and the charge protection device for filling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621411797.5U CN206293929U (en) | 2016-12-22 | 2016-12-22 | Eight string batteries and the charge protection device for filling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206293929U true CN206293929U (en) | 2017-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621411797.5U Active CN206293929U (en) | 2016-12-22 | 2016-12-22 | Eight string batteries and the charge protection device for filling |
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| Country | Link |
|---|---|
| CN (1) | CN206293929U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602650A (en) * | 2016-12-22 | 2017-04-26 | 天津力神特种电源科技股份公司 | Power charging protection device for eight strings of batteries being charged in parallel connection |
-
2016
- 2016-12-22 CN CN201621411797.5U patent/CN206293929U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602650A (en) * | 2016-12-22 | 2017-04-26 | 天津力神特种电源科技股份公司 | Power charging protection device for eight strings of batteries being charged in parallel connection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 4-6, Lanyuan Road, Huayuan Industrial Zone, Binhai New Area, Tianjin 300384 Patentee after: Tianjin Lantian Special Power Technology Co.,Ltd. Address before: No. 6 Lanyuan Road, Huayuan Industrial Park, Binhai New Area, Tianjin 300384 Patentee before: TIANJIN LISHEN SPECIAL POWER TECHNOLOGY CO.,LTD. |
|
| CP03 | Change of name, title or address |