CN201341030Y - Monitoring and balancing device used for connecting storage battery group in series - Google Patents

Monitoring and balancing device used for connecting storage battery group in series Download PDF

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Publication number
CN201341030Y
CN201341030Y CNU2008201990583U CN200820199058U CN201341030Y CN 201341030 Y CN201341030 Y CN 201341030Y CN U2008201990583 U CNU2008201990583 U CN U2008201990583U CN 200820199058 U CN200820199058 U CN 200820199058U CN 201341030 Y CN201341030 Y CN 201341030Y
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China
Prior art keywords
module
storage battery
monitoring
unit
batteries
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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
Application number
CNU2008201990583U
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Chinese (zh)
Inventor
姚军龙
郑学州
雍定华
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Beijing Kenergy Technology Co Ltd
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Beijing Kenergy Technology Co Ltd
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Priority to CNU2008201990583U priority Critical patent/CN201341030Y/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model discloses a monitoring and balancing device used for connecting storage battery group in series, which comprises an input/output interface unit as well as a general control unit; the input/output interface unit comprises an inspection unit as well as a charging unit; wherein the inside of the inspection unit is provided with a voltage inspection module, a current inspection module, and a temperature inspection module; the charging unit comprises a power input interface module, a power conversion module, an execution module and a shunt selection module. The monitoring and balancing device used for connecting storage battery group in series judges the single storage battery lack of electricity by carrying out real time or regular inspection on the information such as the voltage, current and temperature of each single storage battery, and charges the single storage battery lack of electricity, thus realizing the integration of inspection management and balanced power charging. The monitoring and balancing device used for connecting storage battery group in series has a simple structure, changes accurately, and greatly improves the service life and working performance of the storage battery group.

Description

A kind of monitoring and balancer of the batteries that is used to connect
Technical field
The utility model relates to a kind of electrical installation, relates in particular to a kind of batteries that is used for connecting, and monitoring and the balancer that can monitor and the storage battery of undertension is charged the voltage of each storage battery of batteries.
Background technology
The monomer voltage of storage battery is fixed, but in actual applications, often needs to obtain higher voltage,, need be together in series a plurality of storage batterys for this reason, obtains high voltage with the two ends output voltage of this batteries.
For the series connection batteries,, all can have influence on the performance of whole batteries if wherein any one storage battery goes wrong.Because the uncertainty of storage battery manufacturing process, some ropy storage battery is understood repid discharge and is caused long-term power shortage, and long-term power shortage has quickened the damage of this storage battery, and this has caused the useful life of whole batteries and performance to decrease.
For solving the flimsy problem of above-mentioned indivedual discharged or defective battery, taked several different methods in the prior art.For example, between two storage batterys of series connection an energy device is set, compares with the voltage to two joint storage batterys, when the voltage difference occurring, the storage battery energy that voltage ratio is higher is sent to the lower storage battery of voltage, makes two accumulator electric-quantities be able to equilibrium.
Perhaps, batteries is changed into parallel way charging by series system, the problem of at first damaging with the relatively poor storage battery of the capacity of avoiding serial connection charge to bring by switching device.Like this, avoid indivedual storage batterys at first to damage though solved, the system that makes becomes huge, and mechanical structure is too many, and then the system failure rate increase is also increased in the fault point thereupon.
Yet,, all be incomplete for the performance of keeping batteries and useful life no matter above-mentioned which kind of method or equipment all can't detect the power shortage situation of storage battery in real time and charges to guarantee the electric weight equilibrium of each storage battery in the batteries.
The utility model content
The purpose of this utility model is to provide a kind of monitoring and balancer of the batteries that is used to connect, can detect in real time and the storage battery of power shortage is charged the working condition of each storage battery in the batteries, thus the performance and the useful life of improving whole batteries.
The monitoring and the balancer of the batteries that is used to connect described in the utility model comprise input/output interface unit and Master Control Unit, and described input/output interface unit comprises detecting unit and charhing unit, wherein,
Described detecting unit inside is provided with voltage detection module, current detection module, temperature detecting module, and the signal input part of described voltage detection module, current detection module, temperature detecting module is connected to each storage battery respectively, and the signal output part of described voltage detection module, current detection module, temperature detecting module is connected to the signal input part of Master Control Unit respectively;
Described charhing unit comprises:
Be used to connect the power input interface module of external charging power supply;
Be connected with the output of above-mentioned power input interface module, be used for the external power source of input being converted to the power transfer module of each storage battery corresponding voltage according to the control command of Executive Module;
Be used to receive Master Control Unit information, and select module to send the Executive Module of control command power transfer module and shunt;
Be used to receive the control command of Executive Module, module is selected in the shunt of selecting to connect corresponding charge in batteries loop, this selects the input of module to be connected with the output of above-mentioned power transfer module along separate routes, and its output then is provided with the lead that is connected to each storage battery positive and negative electrode respectively.
The monitoring and the balancer of the batteries that is used for connecting described in the utility model also comprise the communication unit that is used to upload Master Control Unit information, and this communication unit is connected with Master Control Unit.Concrete, described communication unit has RS485 bus interface or CAN bus interface.
The monitoring and the balancer of the batteries that is used for connecting described in the utility model, the power input interface module of described charhing unit is the type corresponding to the voltage output interface of external communication charge power supply.Described power transfer module is the ac/dc voltage transformation module.
The monitoring and the balancer of the batteries that is used for connecting described in the utility model, the power input interface module of described charhing unit is the type corresponding to the voltage output interface of batteries.Described power transfer module is the DC-DC voltage transformation module.
The monitoring and the balancer of the batteries that is used for connecting described in the utility model, it is relay corresponding to storage battery quantity in the batteries that module is selected in described shunt, and the storage battery positive and negative electrode of connecting this relay correspondence during described relay closes enters charge circuit.Perhaps, it is electronic switch corresponding to storage battery quantity in the batteries that module is selected in described shunt, and the storage battery positive and negative electrode of connecting this electronic switch correspondence during described electronic switch closes enters charge circuit.
The monitoring and the balancer of the batteries that is used to connect described in the utility model, information such as the voltage by detecting each cell batteries in the batteries in real time or regularly, electric current, temperature, to judge the cell batteries that is in the power shortage state, and be in the charge power supply of power shortage state cell batteries as this with the out-put supply of outside charge power supply or this batteries, this cell batteries is charged, it is integrated with equalizing charge to have realized detecting management, it is simple in structure, charging is accurate, has improved the useful life and the service behaviour of batteries greatly.
Description of drawings
Fig. 1 is the monitoring and the balancer structural representation of the batteries that is used to connect described in the utility model;
Fig. 2 is be used for the connecting monitoring of batteries and the structural representation of balancer detecting unit described in the utility model;
Fig. 3 is be used for the connecting monitoring of batteries and the structural representation of balancer charhing unit described in the utility model.
Embodiment
Those skilled in the art elaborate to described in the utility model below in conjunction with accompanying drawing, so that can implement after consulting this specification according to this.
As shown in Figure 1, the monitoring and the balancer of the batteries that is used to connect described in the utility model comprise Master Control Unit, input/output interface unit, described input/output interface unit comprises detecting unit and charhing unit, and this input/output interface unit can be connected with batteries.
Described input/output interface unit can detect information such as the voltage, electric current, temperature of each storage battery in the batteries, and be sent to Master Control Unit and carry out judgment processing, Master Control Unit is judged the working condition of each storage battery according to voltage, electric current, the temperature information of each storage battery that receives, and send control command to the input/output interface unit, by this input/output interface unit the storage battery that is in the power shortage state is charged.
Described Master Control Unit also can connect a communication unit, and this communication unit is used for uploading Master Control Unit information to host computer, configurable RS485 bus interface of this communication unit or CAN bus interface.
Specifically, as shown in Figure 2, described detecting unit inside is provided with voltage detection module, current detection module, temperature detecting module.
Wherein, described voltage detection module is used for detecting the voltage of each cell batteries of batteries.Specifically the lead that is connected to each storage battery positive and negative electrode respectively can be set, the other end of described lead then inserts the signal input part of voltage detection module.The signal output part of this voltage detection module connects the input of Master Control Unit, is sent to Master Control Unit with the voltage signal with its detection.
Described current detection module is used for detecting the electric current of each cell batteries of batteries.Specifically the lead that is connected to each storage battery positive and negative electrode respectively can be set, the other end of described lead then inserts the signal input part of current detection module.The signal output part of this current detection module connects the input of Master Control Unit, is sent to Master Control Unit with the current signal with its detection.
Described temperature detecting module is used for detecting the temperature of each cell batteries of batteries.The signal input part of this temperature detecting module can connect the temperature sensor corresponding to each storage battery, by the temperature information of described each storage battery of temperature sensor measurement.The signal output part of this temperature detecting module connects the input of Master Control Unit, is sent to Master Control Unit with the temperature signal with its detection.
As shown in Figure 3, described charhing unit comprises: module is selected in power input interface module, power transfer module, Executive Module and shunt.
Wherein, described power input interface module is used to connect the external charging power supply.Described power transfer module is used for according to the control command of Executive Module the external power source of importing being converted to each storage battery corresponding voltage, and the input of this modular converter is connected with the output of power input interface module.
Described power input interface module can be the type corresponding to the voltage output interface of external communication charge power supply, and perhaps, the power input interface module of described charhing unit is the type corresponding to the voltage output interface of batteries.
That is to say that the charge power supply of monitoring described in the utility model and balancer can be the ac charging power supply of outside, also can be this batteries.
When charge power supply was the ac charging power supply of outside, for example, the external charging power supply was an alternating current 220V, and so, described power input interface module is the pattern corresponding with the out splice going splice of this alternating current 220V power supply.And corresponding, described power transfer module is the ac/dc voltage transformation module, its concrete voltage transitions instruction comes from the control command of the Master Control Unit of Executive Module forwarding.
When charge power supply was this batteries, promptly with the charge power supply of this batteries as cell batteries, so, described power input interface module was the pattern corresponding with the out splice going splice of this batteries.Corresponding, described power transfer module is the DC-DC voltage transformation module, its concrete voltage transitions instruction comes from the control command of the Master Control Unit of Executive Module forwarding.
Described shunt selection module is used for the control command according to Executive Module, select to connect the pairing charge circuit of each cell batteries, this selects the input of module to be connected with the output of above-mentioned power transfer module along separate routes, and its output then is provided with the lead that is connected to each storage battery positive and negative electrode respectively.Described shunt selects module to can be relay corresponding to storage battery quantity in the batteries, i.e. the storage battery positive and negative electrode of connecting this relay correspondence during the corresponding relay independently of each cell batteries, and described relay closes enters charge circuit.Perhaps, described shunt selection module is the electronic switch corresponding to storage battery quantity in the batteries, be the corresponding electronic switch independently of each cell batteries, and the storage battery positive and negative electrode of connecting this electronic switch correspondence during described electronic switch closes enter charge circuit.As shown in Figure 3, be the example of electronic switch for selecting module along separate routes.
As seen from Figure 3,1#, 2#, N-1#, the corresponding electronic switch K1 of N# storage battery difference, K2, Kn-1, Kn.If, Master Control Unit is according to the information of detected each storage battery of detecting unit, judge the 1# storage battery and be in the power shortage state, then send control command to Executive Module, this control command has comprised the control information of concrete power source conversion and the control information of connecting 1# storage battery road electronic switch.At this moment, Executive Module is transmitted this control command to power transfer module, this power transfer module is the voltage of corresponding 1# charge in batteries voltage with the external charging power source conversion and exports to and select along separate routes module, described shunt selects module then to transmit under the control of control command at Executive Module, connect electronic switch K1, the charge circuit at 1# storage battery place is connected,, realized charging the 1# storage battery even the output of power transfer module is connected respectively with the positive and negative electrode of 1# storage battery.
The monitoring and the balancer of the storage battery that is used to connect described in the utility model, both can be in real time the working condition of each cell batteries be detected, so that the storage battery that is in the power shortage state is charged, also can set blanking time, regularly the working condition to each cell batteries detects, so that the storage battery that is in the power shortage state is charged.
And take place for fear of caused electronic switch of frequent charge or the flimsy situation of the frequent connection of relay, the power shortage standard to storage battery in Master Control Unit is provided with.So that voltage standard to be set is example, detect the operating voltage of each storage battery in the batteries, if the actual output voltage of certain storage battery is lower than the output voltage average value 10% of each storage battery in this batteries, think that then this storage battery is in the power shortage state, need charging.And in charging process, Master Control Unit also can be regularly or is received the information of voltage of each storage battery in real time, when the output voltage of all storage batterys in the batteries and mean value differ in 10%, just think that this batteries is working properly, each storage battery all need not charge.
Although embodiment of the present utility model is open as above, but it is not restricted to listed utilization in specification and the execution mode, it can be applied to the various fields of the present utility model that are fit to fully, for those skilled in the art, can easily realize other modification, therefore under the universal that does not deviate from claim and equivalency range and limited, the legend that the utility model is not limited to specific details and illustrates here and describe.

Claims (9)

1. the monitoring and the balancer of the batteries that is used to connect comprise input/output interface unit and Master Control Unit, and described input/output interface unit comprises detecting unit and charhing unit, it is characterized in that,
Described detecting unit inside is provided with voltage detection module, current detection module, temperature detecting module, and the signal input part of described voltage detection module, current detection module, temperature detecting module is connected to each storage battery respectively, and the signal output part of described voltage detection module, current detection module, temperature detecting module is connected to the signal input part of Master Control Unit respectively;
Described charhing unit comprises:
Be used to connect the power input interface module of external charging power supply;
Be connected with the output of above-mentioned power input interface module, be used for the external power source of input being converted to the power transfer module of each storage battery corresponding voltage according to the control command of Executive Module;
Be used to receive Master Control Unit information, and select module to send the Executive Module of control command power transfer module and shunt;
Be used to receive the control command of Executive Module, module is selected in the shunt of selecting to connect corresponding charge in batteries loop, this selects the input of module to be connected with the output of above-mentioned power transfer module along separate routes, and its output then is provided with the lead that is connected to each storage battery positive and negative electrode respectively.
2. monitoring as claimed in claim 1 and balancer is characterized in that, also comprise the communication unit that is used to upload Master Control Unit information, and this communication unit is connected with Master Control Unit.
3. monitoring as claimed in claim 2 and balancer is characterized in that, described communication unit has RS485 bus interface or CAN bus interface.
4. monitoring as claimed in claim 1 or 2 and balancer is characterized in that, the power input interface module of described charhing unit is the type corresponding to the voltage output interface of external communication charge power supply.
5. monitoring as claimed in claim 4 and balancer is characterized in that, described power transfer module is the ac/dc voltage transformation module.
6. monitoring as claimed in claim 1 or 2 and balancer is characterized in that, the power input interface module of described charhing unit is the type corresponding to the voltage output interface of batteries.
7. monitoring as claimed in claim 6 and balancer is characterized in that, described power transfer module is the DC-DC voltage transformation module.
8. monitoring as claimed in claim 1 or 2 and balancer, it is characterized in that, it is relay corresponding to storage battery quantity in the batteries that module is selected in described shunt, and the storage battery positive and negative electrode of connecting this relay correspondence during described relay closes enters charge circuit.
9. monitoring as claimed in claim 1 or 2 and balancer, it is characterized in that, it is electronic switch corresponding to storage battery quantity in the batteries that module is selected in described shunt, and the storage battery positive and negative electrode of connecting this electronic switch correspondence during described electronic switch closes enters charge circuit.
CNU2008201990583U 2008-12-30 2008-12-30 Monitoring and balancing device used for connecting storage battery group in series Expired - Fee Related CN201341030Y (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101917034A (en) * 2010-07-27 2010-12-15 合肥西玛科电子有限公司 Relay switching-based lithium battery pack non-dissipative equalizing device
CN102544608A (en) * 2010-12-31 2012-07-04 欣旺达电子股份有限公司 Full-charging static balancing method and system for automobile lithium battery
CN102593888A (en) * 2012-01-17 2012-07-18 浙江凯能科技有限公司 Storage battery balanced charging and discharging control system
CN103293370A (en) * 2013-05-10 2013-09-11 温州大学 Voltage-temperature integrated testing device of storage battery set
CN103701160A (en) * 2013-11-30 2014-04-02 国家电网公司 Storage battery pack balancing module and remote online balancing device
CN106340687A (en) * 2015-07-09 2017-01-18 马涅蒂-马瑞利公司 Electronic Control Device For Controlling A Vehicle Battery Pack And System Employing Such A Device
CN106394296A (en) * 2016-10-31 2017-02-15 北京新能源汽车股份有限公司 Automobile battery equalizing regulation system and automobile

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101917034A (en) * 2010-07-27 2010-12-15 合肥西玛科电子有限公司 Relay switching-based lithium battery pack non-dissipative equalizing device
CN102544608A (en) * 2010-12-31 2012-07-04 欣旺达电子股份有限公司 Full-charging static balancing method and system for automobile lithium battery
CN102593888A (en) * 2012-01-17 2012-07-18 浙江凯能科技有限公司 Storage battery balanced charging and discharging control system
CN103293370A (en) * 2013-05-10 2013-09-11 温州大学 Voltage-temperature integrated testing device of storage battery set
CN103701160A (en) * 2013-11-30 2014-04-02 国家电网公司 Storage battery pack balancing module and remote online balancing device
CN106340687A (en) * 2015-07-09 2017-01-18 马涅蒂-马瑞利公司 Electronic Control Device For Controlling A Vehicle Battery Pack And System Employing Such A Device
CN106340687B (en) * 2015-07-09 2020-06-09 马涅蒂-马瑞利公司 Electronic control device for controlling vehicle battery pack and system employing the same
CN106394296A (en) * 2016-10-31 2017-02-15 北京新能源汽车股份有限公司 Automobile battery equalizing regulation system and automobile

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Granted publication date: 20091104

Termination date: 20131230