CN204597509U - A kind of battery management control system being provided with voltage comparator circuit - Google Patents
A kind of battery management control system being provided with voltage comparator circuit Download PDFInfo
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- CN204597509U CN204597509U CN201520102319.5U CN201520102319U CN204597509U CN 204597509 U CN204597509 U CN 204597509U CN 201520102319 U CN201520102319 U CN 201520102319U CN 204597509 U CN204597509 U CN 204597509U
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Abstract
The utility model discloses a kind of battery management control system being provided with voltage comparator circuit, it comprises interconnective battery pack, charger, governor circuit, testing circuit, external circuit, described testing circuit comprises and is arranged on the voltage detecting circuit on batteries monomer battery and the total voltage detection circuit in battery pack, by arranging voltage detecting circuit on batteries monomer battery, total voltage detection circuit is set on the battery pack, the voltage of assembled battery total voltage and batteries monomer battery is gathered respectively, respectively collection two groups of voltage datas are uninterruptedly compared by battery management control device, when two voltage differences reach setting at the appointed time, governor circuit will send alarm signal, the accurate judgement that foregoing circuit design can realize outside loop fault, prevent cable from loosening, the outside line fault that virtual connection and other factors cause, ensure that battery can not super-charge super-discharge so that threaten the safety of personal property, substantially increase fail safe.
Description
Technical field
The utility model relates to battery power field, particularly relates to the battery management control system being provided with voltage comparator circuit.
Background technology
The battery protecting plate being directed to energy storage of current home sale is mainly used in mobile base station, electric bicycle, photovoltaic energy storage system etc.Such baffle structure is all integral type, and the balanced loop of sampling and control and battery is all made on one block of plate, and such plank exists some problems: coefficient of safety is low, and plank power consumption is large, and well do not isolate, sampling precision is low.The protection reliability of storage battery and equipment is lower.
Current battery baffle mainly controls charging and discharging by MOSFET (being commonly called as metal-oxide-semiconductor); when the charger capacitance of user is selected bigger than normal; the impulse current of charging transient is easy to metal-oxide-semiconductor to puncture; its result overcharges to battery exactly; the lighter causes damage, and severe one causes blast so that casualties.Different according to the capacity of load, selected battery pack quantity is also different.The energy-storage system of commonplace 10KW, needs the Cascade System of 4 2.5KW to form, and the middle communication inevitably needed between each unit, according to the baffle of current domestic integral type, probably occurs loss of data during communication, the faults such as false alarm.
Utility model content
In view of current battery safeguard protection above shortcomings, the utility model provides the battery management control system being provided with voltage comparator circuit, can realize the protection reliably carrying out overcharge, overdischarge, guarantee the safety of battery pack.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
A kind of battery management control system being provided with voltage comparator circuit, the described battery management control system being provided with voltage comparator circuit comprises interconnective battery pack, charger, governor circuit, testing circuit, external circuit, described governor circuit comprises battery management control device, discharge and recharge major loop, described discharge and recharge major loop negative pole end is provided with the charge power metal-oxide-semiconductor of the one group of series connection be connected in parallel and the discharge power metal-oxide-semiconductor of one group of series connection, described testing circuit comprises and is arranged on the voltage detecting circuit on batteries monomer battery and the total voltage detection circuit in battery pack.
According to an aspect of the present utility model, described battery pack is lithium battery group.
According to an aspect of the present utility model, described battery pack comprises some pieces of cells and balanced loop circuit, and described balanced loop circuit is made up of cell, insurance resistance, switch, and the switch place of described balanced loop circuit is provided with warning circuit.
According to an aspect of the present utility model, described external circuit is provided with fuse and air switch, the voltage detecting circuit at described fuse and air switch two ends.
According to an aspect of the present utility model, described charger is provided with DC power supply output circuit.
According to an aspect of the present utility model, described battery management control device comprises usb circuit.
According to an aspect of the present utility model, described testing circuit also comprises temperature sensing circuit on the charge power metal-oxide-semiconductor of the total voltage detection circuit on current detection circuit, major loop, the temperature sensing circuit be arranged on batteries monomer battery, series connection and the temperature sensing circuit on the discharge power metal-oxide-semiconductor of connecting, and described current detection circuit is arranged on discharge and recharge major loop.
The advantage that the utility model is implemented: by arranging voltage detecting circuit on batteries monomer battery, total voltage detection circuit is set on the battery pack, the voltage of assembled battery total voltage and batteries monomer battery is gathered respectively, respectively collection two groups of voltage datas are uninterruptedly compared by battery management control device, when two voltage differences reach setting at the appointed time, governor circuit will send alarm signal, the accurate judgement that foregoing circuit design can realize outside loop fault, prevent cable from loosening, the outside line fault that virtual connection and other factors cause, ensure that battery can not super-charge super-discharge so that threaten the safety of personal property, substantially increase fail safe.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of simplified schematic diagram being provided with the battery management control system of voltage comparator circuit described in the utility model;
Fig. 2 is a kind of structural representation being provided with the battery management control system of voltage comparator circuit described in the utility model;
Fig. 3 is a kind of simplified schematic diagram being provided with the discharge and recharge major loop of the battery management control system of voltage comparator circuit described in the utility model;
Fig. 4 is a kind of simplified schematic diagram being provided with the balanced loop of the battery pack of the battery management control system of voltage comparator circuit described in the utility model;
Fig. 5 is a kind of warning circuit simplified schematic diagram being provided with the balanced loop of the battery pack of the battery management control system of voltage comparator circuit described in the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4 and Fig. 5, a kind of battery management control system being provided with voltage comparator circuit, the described battery management control system being provided with voltage comparator circuit comprises interconnective battery pack 1, charger 5, governor circuit 2, testing circuit 3, external circuit 4, described governor circuit comprises battery management control device 21, discharge and recharge major loop 22, described discharge and recharge major loop 22 negative pole end is provided with the charge power metal-oxide-semiconductor 221 of the one group of series connection be connected in parallel and the discharge power metal-oxide-semiconductor 222 of one group of series connection, described testing circuit 3 comprises and is arranged on voltage detecting circuit on batteries monomer battery 31 and the total voltage detection circuit 37 in battery pack.
Testing circuit 3 is included in the voltage detecting circuit 31 on each cell and the total voltage detection circuit 37 in battery pack, this design employs the sampling and measuring of monomer voltage summation and stagnation pressure respectively, and respectively these two groups of data are compared by continual, when unit interval internal pressure differences reaches certain value, master control will point out alarm signal, object is the judgement to external circuit 4 fault, prevents cable from loosening, fault that virtual connection and other reasons cause.
Testing circuit 3 also comprise the total voltage detection circuit 32 on current detection circuit 223, major loop, the temperature sensing circuit 34 be arranged on batteries monomer battery, series connection charge power metal-oxide-semiconductor on temperature sensing circuit 35 and the temperature sensing circuit 36 on the discharge power metal-oxide-semiconductor of connecting, described current detection circuit is arranged on discharge and recharge major loop 22.
In actual applications, discharge and recharge major loop is provided with one group of current detection circuit 223, sampling precision reaches 0.25%, and during the raw fault that prevents that riches all the way, another test point can be measured by the continual electric current to system, can the situation of supervisory circuit at any time.
Testing circuit 3 is included in the temperature sensing circuit 34 on each cell, separately temperature sampling is carried out to each batteries, and the charge power metal-oxide-semiconductor 221 of on discharge and recharge major loop 22 be connected in parallel one group series connection adds on discharge power metal-oxide-semiconductor 222 that temperature sensing circuit 35 connects with one group and add temperature sensing circuit 36, thus cleared away the too high blind area of temperature, reduce the harm that fault heats up to battery and equipment, each batteries and charge power metal-oxide-semiconductor and discharge power metal-oxide-semiconductor are carried out temperature sampling separately, ensure that battery can not super-charge super-discharge so that threaten the safety of personal property, substantially increase fail safe.
The charge power metal-oxide-semiconductor 221 of being connected by the group be connected in parallel at discharge and recharge major loop 22 and the discharge power metal-oxide-semiconductor 222 of one group of series connection, substantially increase fail safe, once puncture uncontrollable, another MOSFET pipe on loop can cut off safely, to ensure that battery can not super-charge super-discharge, threaten the safety of personal property.
External circuit 4 is provided with fuse 41 and air switch 42, and described testing circuit 3 is included in the voltage detecting circuit 33 at described fuse 41 and air switch 41 two ends, judging out of order reason in time when external circuit breaks down, can find out fault point.
Charger 5 on discharge and recharge major loop 22 is provided with DC power supply output circuit 51, is generally 12V or 24V DC power supply and exports, when requiring to add a little skinny device, serve as the effect of stabilized voltage power supply, not needing additional designs independently power supply.
Battery management control device 21 comprises a usb circuit 211, when deep battery discharge, electric discharge is continued in order to not allow battery, adopt the voltage-activated master control borad of a USB DC5V, control charge power MOSFET pipe 221 is closed to charge the battery, can also communicate with host computer simultaneously, play the effect of monitoring.
Battery management control device 221 also can arrange 4 digital quantity input channels and 8 digital quantity output channels, when system is used in large-scale energy-storage system, may with the device talk of upper level or next stage, can prevent when CAN breaks down, some critical datas are not transmitted in time and are caused misoperation, guarantee whole system property safe and reliable to operation.
Battery pack 1 is lithium battery group, comprise some pieces of cells and balanced loop 11, described balanced loop is the series circuit of cell, resistance, switch composition, the equalizer switch place in described balanced loop 11 is provided with warning circuit 111, once switch breaks down, will warning reminding user, breaking down in balanced loop, can get rid of in time.In actual applications, described balanced loop can be the loop being connected an electric capacity with battery with multiple switch, by the grading control battery of multiple switch, equilibrium is carried out to capacitor charge and discharge, balanced safety system is improved, avoids the heating power consumption of resistance simultaneously.
In this enforcement, battery management control device 21 adopts battery charging and discharging management control chip conventional on the market.
The advantage that the utility model is implemented: by arranging voltage detecting circuit on batteries monomer battery, total voltage detection circuit is set on the battery pack, the voltage of assembled battery total voltage and batteries monomer battery is gathered respectively, respectively collection two groups of voltage datas are uninterruptedly compared by battery management control device, when two voltage differences reach setting at the appointed time, governor circuit will send alarm signal, the accurate judgement that foregoing circuit design can realize outside loop fault, prevent cable from loosening, the outside line fault that virtual connection and other factors cause, ensure that battery can not super-charge super-discharge so that threaten the safety of personal property, substantially increase fail safe.
The above; be only embodiment of the present utility model; but protection range of the present utility model is not limited thereto; the technical staff of any skilled is in technical scope disclosed in the utility model; the change that can expect easily or replacement, all should be encompassed within protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of described claim.
Claims (7)
1. one kind is provided with the battery management control system of voltage comparator circuit, it is characterized in that, the described battery management control system being provided with voltage comparator circuit comprises interconnective battery pack, charger, governor circuit, testing circuit, external circuit, described governor circuit comprises battery management control device, discharge and recharge major loop, described discharge and recharge major loop negative pole end is provided with the charge power metal-oxide-semiconductor of the one group of series connection be connected in parallel and the discharge power metal-oxide-semiconductor of one group of series connection, described testing circuit comprises and is arranged on the voltage detecting circuit on batteries monomer battery and the total voltage detection circuit in battery pack.
2. the battery management control system being provided with voltage comparator circuit according to claim 1, is characterized in that, described battery pack is lithium battery group.
3. the battery management control system being provided with voltage comparator circuit according to claim 1, it is characterized in that, described battery pack comprises some pieces of cells and balanced loop circuit, described balanced loop circuit is made up of cell, insurance resistance, switch, and the switch place of described balanced loop circuit is provided with warning circuit.
4. the battery management control system being provided with voltage comparator circuit according to claim 1, it is characterized in that, described external circuit is provided with fuse and air switch, the voltage detecting circuit at described fuse and air switch two ends.
5. the battery management control system being provided with voltage comparator circuit according to claim 1, it is characterized in that, described charger is provided with DC power supply output circuit.
6. the battery management control system being provided with voltage comparator circuit according to claim 1, is characterized in that, described battery management control device comprises usb circuit.
7. according to the battery management control system being provided with voltage comparator circuit one of claim 1 to 6 Suo Shu, it is characterized in that, described testing circuit also comprises temperature sensing circuit on the charge power metal-oxide-semiconductor of the total voltage detection circuit on current detection circuit, major loop, the temperature sensing circuit be arranged on batteries monomer battery, series connection and the temperature sensing circuit on the discharge power metal-oxide-semiconductor of connecting, and described current detection circuit is arranged on discharge and recharge major loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520102319.5U CN204597509U (en) | 2015-02-12 | 2015-02-12 | A kind of battery management control system being provided with voltage comparator circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520102319.5U CN204597509U (en) | 2015-02-12 | 2015-02-12 | A kind of battery management control system being provided with voltage comparator circuit |
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| CN204597509U true CN204597509U (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520102319.5U Expired - Fee Related CN204597509U (en) | 2015-02-12 | 2015-02-12 | A kind of battery management control system being provided with voltage comparator circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044545A (en) * | 2015-08-28 | 2015-11-11 | 云南航天神州汽车有限公司 | Method for detecting incomplete connection of major loop connector of pure electric car |
| CN105589043A (en) * | 2015-12-09 | 2016-05-18 | 天津市捷威动力工业有限公司 | Electrical property test and protection system and method for power battery pack |
| CN111123130A (en) * | 2019-12-25 | 2020-05-08 | 北京空间飞行器总体设计部 | Satellite lithium ion battery voltage telemetering health on-orbit autonomous diagnosis method |
| CN111983488A (en) * | 2020-08-17 | 2020-11-24 | 一汽解放汽车有限公司 | Battery management system and voltage signal processing method thereof |
-
2015
- 2015-02-12 CN CN201520102319.5U patent/CN204597509U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044545A (en) * | 2015-08-28 | 2015-11-11 | 云南航天神州汽车有限公司 | Method for detecting incomplete connection of major loop connector of pure electric car |
| CN105589043A (en) * | 2015-12-09 | 2016-05-18 | 天津市捷威动力工业有限公司 | Electrical property test and protection system and method for power battery pack |
| CN111123130A (en) * | 2019-12-25 | 2020-05-08 | 北京空间飞行器总体设计部 | Satellite lithium ion battery voltage telemetering health on-orbit autonomous diagnosis method |
| CN111983488A (en) * | 2020-08-17 | 2020-11-24 | 一汽解放汽车有限公司 | Battery management system and voltage signal processing method thereof |
| CN111983488B (en) * | 2020-08-17 | 2023-01-06 | 一汽解放汽车有限公司 | Battery management system and voltage signal processing method thereof |
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| C14 | Grant of patent or utility model | ||
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Effective date of registration: 20181022 Granted publication date: 20150826 |
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| PD01 | Discharge of preservation of patent |
Date of cancellation: 20211022 Granted publication date: 20150826 |
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| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20190212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |