CN203859500U - Lithium battery pack protection device - Google Patents
Lithium battery pack protection device Download PDFInfo
- Publication number
- CN203859500U CN203859500U CN201420201604.8U CN201420201604U CN203859500U CN 203859500 U CN203859500 U CN 203859500U CN 201420201604 U CN201420201604 U CN 201420201604U CN 203859500 U CN203859500 U CN 203859500U
- Authority
- CN
- China
- Prior art keywords
- circuit
- battery pack
- lithium battery
- charging
- controller
- 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
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The utility model relates to the technical field of battery management, and particularly relates to a lithium battery pack protection device which can monitor the charging and discharging process, effectively protect the lithium battery pack, prolong the service life of the lithium battery pack and improve the safety degree of operation. The lithium battery pack protection device is characterized by comprising a controller, a charging circuit, a current detection circuit, a voltage detection circuit and a temperature detection circuit, wherein the charging circuit comprises a voltage transformation circuit, a voltage reduction circuit, a rectification circuit, and a constant current output circuit which are sequentially connected and more than two sub charging circuits respectively connected with the constant current output circuit; and the current detection circuit comprises more than two sub current detection loops, each sub current detection loop is in one-to-one corresponding connection with the sub charging circuit, each sub charging circuit is respectively connected with a voltage detection circuit, and each voltage detection circuit is connected with the controller. Compared with the prior art, the lithium battery pack protection device ahs the advantages of reasonable structure, reliable, safe and stable work and the like.
Description
Technical field:
The utility model relates to battery management technical field, and specifically one can be monitored charge and discharge process, effectively protects lithium battery group, extends the lithium battery pack protecting device of lithium battery group useful life and work safety degree.
Background technology:
The advantages such as at present, lithium battery is little with its volume, energy density large, memory-less effect are more and more widely used in every field.The useful life of lithium battery is with to discharge and recharge number of times etc. closely related, the flash-over characteristic of different cells is variant, cause in use, dump energy difference, and the further expansion of meeting guiding discharge difference after repeatedly discharging and recharging on this basis, and then the useful life of shortening battery, in addition, overcharging, excessively putting is also the large reason damaging lithium battery and shorten its useful life.How to improve the protection to lithium battery group, and then extend its useful life, improving efficiency for charge-discharge is problem demanding prompt solution.
Summary of the invention:
The utility model, for the shortcoming and defect existing in prior art, proposes one rational in infrastructure, easy and simple to handle, can significantly improve lithium battery group charge efficiency, extends the battery pack lithium cell protecting device in useful life.
The technical solution of the utility model is as follows:
A kind of lithium battery pack protecting device, it is characterized in that comprising controller, charging circuit, current detection circuit, voltage detecting circuit, temperature sensing circuit, wherein charging circuit comprises the transforming circuit being connected successively, reduction voltage circuit, rectification circuit, constant current output circuit and two above sub-charging circuits that are connected with constant current output circuit respectively, current detection circuit comprises that more than two electron current detects loop, each electron current detects loop and sub-charging circuit connects one to one, every sub-charging circuit is connected with respectively a road voltage detecting circuit, every road voltage detecting circuit is all connected with controller.
In the utility model, be also provided with for controlling the closed charging control circuit disconnecting of charging circuit, in charging control circuit, be provided with reverse-blocking tetrode thyristor device, reverse-blocking tetrode thyristor device access charging circuit, the control end of reverse-blocking tetrode thyristor device is connected with controller.
In the utility model, be also provided with the sound light alarming circuit being connected with controller, in sound light alarming circuit, be provided with indicator light and loud speaker, for outwards sending alarm signal.
In the utility model controller, be provided with address encoding circuit and microcontroller chip, microcontroller chip is connected with address encoding circuit, address encoding circuit is for being assigned to address number to the plural cell in battery pack, in controller, be also provided with the parameter setting circuit for writing threshold data, parameter setting circuit is connected with microcontroller chip, the other end of parameter setting circuit is connected with supervisory keyboard, controller is also provided with the USB interface and the cumulative circuit of uploading that are connected with microcontroller chip respectively, the cumulative circuit of uploading is by the electric current gathering, voltage, after temperature data adds up by set point number, be uploaded to host computer, carry out next step analysis.
The utility model in use, electric current, voltage, the temperature data of each cell in current detection circuit and voltage detecting circuit and temperature collection circuit Real-time Collection lithium battery group, and itself and the threshold data of prior writing controller are compared, in the time exceeding threshold value, send warning by sound light alarming circuit.
The utility model compared with prior art, can be realized multiple cells monitoring management targetedly in lithium battery group, has the advantages such as rational in infrastructure, reliable operation, safety and stability.
Brief description of the drawings:
Accompanying drawing 1 is structural representation of the present utility model.
Reference numeral: controller 1, charging circuit 2, current detection circuit 3, voltage detecting circuit 4, temperature sensing circuit 5, sound light alarming circuit 6, transforming circuit 7, reduction voltage circuit 8, rectification circuit 9, constant current output circuit 10, sub-charging circuit 11, electron current detect loop 12, charging control circuit 13.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, the utility model proposes a kind of lithium battery pack protecting device, it is characterized in that comprising controller 1, charging circuit 2, current detection circuit 3, voltage detecting circuit 4, temperature sensing circuit 5, wherein charging circuit 2 comprises the transforming circuit 7 being connected successively, reduction voltage circuit 8, rectification circuit 9, constant current output circuit 10 and two above sub-charging circuits 11 that are connected with constant current output circuit respectively, current detection circuit 3 comprises that more than two electron current detects loop 12, each electron current detects loop 12 and connects one to one with sub-charging circuit 11, every sub-charging circuit 11 is connected with respectively a road voltage detecting circuit 4, every road voltage detecting circuit is all connected with controller 1.
In the utility model, be also provided with for controlling the closed charging control circuit 13 disconnecting of charging circuit, in charging control circuit 13, be provided with reverse-blocking tetrode thyristor device, reverse-blocking tetrode thyristor device access charging circuit, the control end of reverse-blocking tetrode thyristor device is connected with controller 1.
In the utility model, be also provided with the sound light alarming circuit 6 being connected with controller 1, in sound light alarming circuit 6, be provided with indicator light and loud speaker, for outwards sending alarm signal.
In the utility model controller 1, be provided with address encoding circuit and microcontroller chip, microcontroller chip is connected with address encoding circuit, address encoding circuit is for being assigned to address number to the plural cell in battery pack, in controller, be also provided with the parameter setting circuit for writing threshold data, parameter setting circuit is connected with microcontroller chip, the other end of parameter setting circuit is connected with supervisory keyboard, controller is also provided with the USB interface and the cumulative circuit of uploading that are connected with microcontroller chip respectively, the cumulative circuit of uploading is by the electric current gathering, voltage, after temperature data adds up by set point number, be uploaded to host computer, carry out next step analysis.
The utility model in use, electric current, voltage, the temperature data of each cell in current detection circuit 3 and voltage detecting circuit 4 and temperature collection circuit 5 Real-time Collection lithium battery groups, and itself and the threshold data of prior writing controller 1 are compared, in the time exceeding threshold value, send warning by sound light alarming circuit 6.
The utility model compared with prior art, can be realized multiple cells monitoring management targetedly in lithium battery group, has the advantages such as rational in infrastructure, reliable operation, safety and stability.
Claims (6)
1. a lithium battery pack protecting device, it is characterized in that comprising controller, charging circuit, current detection circuit, voltage detecting circuit, temperature sensing circuit, wherein charging circuit comprises the transforming circuit being connected successively, reduction voltage circuit, rectification circuit, constant current output circuit and two above sub-charging circuits that are connected with constant current output circuit respectively, current detection circuit comprises that more than two electron current detects loop, each electron current detects loop and sub-charging circuit connects one to one, every sub-charging circuit is connected with respectively a road voltage detecting circuit, every road voltage detecting circuit is all connected with controller.
2. a kind of lithium battery pack protecting device according to claim 1; it is characterized in that being also provided with for controlling the closed charging control circuit disconnecting of charging circuit; in charging control circuit, be provided with reverse-blocking tetrode thyristor device; reverse-blocking tetrode thyristor device access charging circuit, the control end of reverse-blocking tetrode thyristor device is connected with controller.
3. a kind of lithium battery pack protecting device according to claim 1, is characterized in that being also provided with the sound light alarming circuit being connected with controller, is provided with indicator light and loud speaker in sound light alarming circuit.
4. a kind of lithium battery pack protecting device according to claim 1; it is characterized in that being provided with in controller address encoding circuit and microcontroller chip; microcontroller chip is connected with address encoding circuit, and address encoding circuit is for being assigned to address number to the plural cell in battery pack.
5. a kind of lithium battery pack protecting device according to claim 1; it is characterized in that being also provided with in controller the parameter setting circuit for writing threshold data; parameter setting circuit is connected with microcontroller chip, and the other end of parameter setting circuit is connected with supervisory keyboard.
6. a kind of lithium battery pack protecting device according to claim 1, is characterized in that controller is also provided with USB interface and the cumulative circuit of uploading being connected with microcontroller chip respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201604.8U CN203859500U (en) | 2014-04-24 | 2014-04-24 | Lithium battery pack protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201604.8U CN203859500U (en) | 2014-04-24 | 2014-04-24 | Lithium battery pack protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203859500U true CN203859500U (en) | 2014-10-01 |
Family
ID=51609339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420201604.8U Expired - Fee Related CN203859500U (en) | 2014-04-24 | 2014-04-24 | Lithium battery pack protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203859500U (en) |
-
2014
- 2014-04-24 CN CN201420201604.8U patent/CN203859500U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103311965B (en) | Batteries in parallel connection group discharge and recharge intelligent management apapratus and method | |
| WO2015196641A1 (en) | Battery charging method and device, and computer storage medium | |
| CN105553030A (en) | Uninterruptable power supply management system of lithium battery | |
| CN104467077A (en) | Storage battery charging control method | |
| CN104242416A (en) | Storage battery charging management system of electric bicycle | |
| CN204145003U (en) | A kind of lithium battery management devices | |
| CN203827020U (en) | Electric automobile lithium battery charger with overcharge protection | |
| CN103490390A (en) | Battery management system and method with double protective functions | |
| CN203951228U (en) | Transformer station direct current system battery pack supervising device | |
| CN104407304A (en) | Storage battery detector and working condition monitoring system thereof | |
| CN203859500U (en) | Lithium battery pack protection device | |
| CN104716720A (en) | Battery management system | |
| CN204118821U (en) | A kind of electric bike battery charge protection device | |
| CN106291241A (en) | A kind of electric power cable intelligent fault warning system | |
| CN203984062U (en) | Lithium battery frequency conversion quick-charging circuit | |
| CN203377655U (en) | Lithium battery charging circuit | |
| CN104502846A (en) | Storage battery overload performance detection apparatus | |
| CN204809860U (en) | Lithium battery protection device based on initiative is balanced | |
| CN203658504U (en) | Lithium battery multi-string protection plate detection device | |
| CN203984060U (en) | Large current balance type power-supply management system | |
| CN202856402U (en) | Intelligent monitoring device of state of lead-acid storage battery | |
| CN203859556U (en) | Lithium battery management device based on clamping voltage balance | |
| CN103872741A (en) | Lithium battery management device based on clamping voltage balance | |
| CN203310978U (en) | Large capacity explosion-proof storage battery detection device | |
| CN202435094U (en) | Control system for balanced discharge of storage battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20150424 |
|
| EXPY | Termination of patent right or utility model |