CN205427156U - Free fault detection device of battery - Google Patents
Free fault detection device of battery Download PDFInfo
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- CN205427156U CN205427156U CN201520657668.3U CN201520657668U CN205427156U CN 205427156 U CN205427156 U CN 205427156U CN 201520657668 U CN201520657668 U CN 201520657668U CN 205427156 U CN205427156 U CN 205427156U
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Abstract
The application discloses free fault detection device of battery, this device at first carries out fixed cycle or change cycle at time among the transient that discharges to its output voltage at this battery monomer, take the time stamp sampling, then it obtains the free voltage curve of this battery to handle the sampling result, and then signify the characteristic value of this voltage curve, afterwards, from the interior free characteristic value of other batteries of receiving of group battery, go on free characteristic value of this battery and the free characteristic value of other batteries on average, obtain average characteristic value, carry out the comparison with free characteristic value of this battery and average characteristic value at last, predetermine the discrepancy then judge that this battery monomer breaks down if difference between them surpasss. In case judge that this battery monomer breaks down and then can take the processing measure to it, change or maintain it to can avoid causing the influence to the whole capacity and the life -span of group battery.
Description
Technical field
The application relates to cell art, more particularly, it relates to the failure detector of a kind of battery cell.
Background technology
Due to the reason such as physical characteristic, processing technique, individually the output voltage of battery unit typically cannot meet the requirement to its output voltage of the general occasion, multiple battery units the most typically can be packaged be connected into a battery cell that can export specific voltage and use.Such as automobile storage battery generally comprises the battery unit of 6 series connection, and its output voltage is generally 12 volts, to facilitate automaker to be designed adjusting to the electric utility of automobile according to this output voltage.The occasion of relatively high output voltage is needed for some, in addition it is also necessary to multiple battery cells are connected into set of cells, such as the vehicle power etc. of steamer, electric automobile.
But, due to the not equal reason of the use condition of process deviation when reality manufactures, actually used place, the characteristic deviation of each battery cell in set of cells can build up increasing along with the use time, its capacity tolerance is caused the most progressively to strengthen, thus this battery cell enters malfunction, and then affect whole volume and the life-span of set of cells, it is therefore desirable to the battery cell entering malfunction in set of cells is detected, so as to it is taked in time Disposal Measures.
Utility model content
In view of this, the application provides the failure detector of a kind of battery cell, for detecting, the battery cell entering malfunction to avoid it to impact whole volume and the life-span of set of cells.
To achieve these goals, it is proposed that scheme as follows:
The failure detector of a kind of battery cell, sets up module, characteristic value calculating module, eigenvalue transceiver module, mean value calculation module including voltage sample module, voltage curve and compares to determine module, wherein:
Described voltage sample module is connected with positive pole, the negative pole of above-mentioned battery cell respectively, in being in electric discharge transient process at described battery cell, the output voltage to described battery cell carries out fixed cycle or variable period, the sampling of band timestamp, and exports sample；
The signal output part of signal input part and above-mentioned voltage sample module that described voltage curve sets up module is connected, and is provided with the signal output part of the voltage curve of the described battery cell that the sample obtained for exporting basis is set up；
The signal input part of described characteristic value calculating module is set up module with above-mentioned voltage curve and is connected, and is provided with the signal output part of eigenvalue for exporting the described battery cell characterizing described voltage curve；
Described eigenvalue transceiver module is provided with signal receiving end and signal output part, described signal receiving end includes described battery cell other battery cells, eigenvalue of reception other battery cells described in interior set of cells for connecting, and described signal output part is for exporting the eigenvalue of other battery cells described；
Described mean value calculation module signal output part with the signal output part of described characteristic value calculating module, described eigenvalue transceiver module respectively is connected, and is provided with the mean eigenvalue of eigenvalue for exporting eigenvalue and other battery cells described reflecting described battery cell；
The described module that compares to determine is connected with signal output part, the signal output part of described characteristic value calculating module of described mean value calculation module respectively, for the eigenvalue of described battery cell is compared with described mean eigenvalue, described battery cell eigenvalue relatively as described in the deviation of mean eigenvalue beyond predetermined deviation value, then judge that described battery cell breaks down.
Optionally, discharge examination module is also included, wherein:
Described discharge examination module is connected with described positive pole, described negative pole respectively, and arranges the signal output part of output sampling beginning control signal when described battery cell initially enters electric discharge transient process；The signal output part of described discharge examination module is connected with the control signal input of described voltage sample module.
Optionally, sample process module is also included, wherein:
The signal input part of described sample process module is connected with the signal output part of described voltage sample module；
The signal input part that the signal output part of described sample process module sets up module with described voltage curve is connected, and for setting up the sample after module exports n the sample giving up described sample beginning to described voltage curve, n is positive integer.
Optionally, n is the positive integer more than 0, less than or equal to 1,000 ten thousand.
Optionally, described eigenvalue transceiver module is additionally provided with the signal sending end for connecting other battery cells described, for the eigenvalue of described battery cell being broadcasted other battery cells described.
Can be seen that from above-mentioned technical scheme, this application discloses the failure detector of a kind of battery cell, first this device carries out fixed cycle or variable period when this battery cell is in electric discharge transient process to its output voltage, band timestamp is sampled, then sampled result is processed the voltage curve obtaining this battery cell, and then obtain characterizing the eigenvalue of this voltage curve, afterwards, the eigenvalue of other battery cells is received in set of cells, the eigenvalue of the eigenvalue of this battery cell He other battery cells is averaged, obtain mean eigenvalue, finally the eigenvalue of this battery cell is compared with mean eigenvalue, if both differences exceed predetermined deviation value, judge that this battery cell breaks down.Once judge that this battery cell breaks down, it can be taked Disposal Measures, it is replaced or keeps in repair such that it is able to avoid the whole volume to set of cells and life-span to impact.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the application, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The schematic diagram of the failure detector of a kind of battery cell that Fig. 1 provides for the embodiment of the present application；
The schematic diagram of the failure detector of a kind of battery cell that Fig. 2 provides for another embodiment of the application；
The schematic diagram of the failure detector of a kind of battery cell that Fig. 3 provides for the another embodiment of the application；
The schematic diagram of the failure detector of the another kind of battery cell that Fig. 4 provides for the application.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described embodiment is only some embodiments of the present application rather than whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of the application protection.
Embodiment one
The schematic diagram of the failure detector of a kind of battery cell that Fig. 1 provides for the embodiment of the present application.
As it is shown in figure 1, the failure detector that the present embodiment provides includes that voltage sample module 10, voltage curve are set up module 20, characteristic value calculating module 30, eigenvalue transceiver module 40, mean value calculation module 50 and compare to determine module 60.
Voltage sample module 10 is connected with positive pole, the negative pole of battery cell 100 respectively, for when battery cell 100 enters in electric discharge transient process, the output voltage of this battery cell 100 is carried out fixed cycle or variable period, the sampling of band timestamp, then exports sample by signal output part.So-called variable period refers to carry out more short-period sampling when this output voltage changes very fast within the unit interval, carries out the sampling of longer cycle when changing slower within the unit interval.
The signal output part of signal input part and voltage sample module 10 that voltage curve sets up module 20 is connected, sample for exporting voltage sample module 10 processes, and the voltage curve of this battery cell is set up according to result, then export this voltage curve by signal output part.
The signal output part that the signal input part of characteristic value calculating module 30 sets up module 20 with described voltage curve is connected, and for receiving and calculating this voltage curve, obtains characterizing the eigenvalue of this voltage curve, then exports this feature value by signal output part.
Eigenvalue transceiver module 40 is provided with signal receiving end 41 and signal output part 42, signal receiving end 41 is other battery cells 200 within connecting the set of cells including this battery cell 100, and receive the eigenvalue of other battery cells 200, and exported the eigenvalue of these other battery cells 200 by this signal output part 42.
Mean value calculation module 50 is connected with signal output part, the signal output part of eigenvalue transceiver module 40 of characteristic value calculating module 30 respectively, for being averaged by the eigenvalue of the eigenvalue of this battery cell 100 Yu every other battery cell 200, value calculates, and obtains and passes through its signal output part and export the mean eigenvalue of all battery cells.This mean eigenvalue reflects the meansigma methods of the eigenvalue of all battery cells.
Compare to determine module 60 to be connected with signal output part, the signal output part of characteristic value calculating module 30 of mean value calculation module 40 respectively, for the eigenvalue of this battery cell 100 is compared with mean eigenvalue, if both differences exceed predetermined deviation value, then judge that this battery cell 100 breaks down.
Can be seen that from technique scheme, present embodiments provide the failure detector of a kind of battery cell, first this device carries out fixed cycle or variable period when this battery cell is in electric discharge transient process to its output voltage, band timestamp is sampled, then sampled result is processed the voltage curve obtaining this battery cell, and then obtain characterizing the eigenvalue of this voltage curve, afterwards, the eigenvalue of other battery cells is received in set of cells, the eigenvalue of the eigenvalue of this battery cell He other battery cells is averaged, obtain mean eigenvalue, finally the eigenvalue of this battery cell is compared with mean eigenvalue, if both differences exceed predetermined deviation value, judge that this battery cell breaks down.Once judge that this battery cell breaks down, it can be taked Disposal Measures, it is replaced or keeps in repair such that it is able to avoid the whole volume to set of cells and life-span to impact.
Embodiment two
The schematic diagram of the failure detector of a kind of battery cell that Fig. 2 provides for another embodiment of the application.
As in figure 2 it is shown, the failure detector that the present embodiment provides is to be additionally arranged discharge examination module 70 on the basis of a upper embodiment.
This discharge examination module 70 respectively with the positive pole of this battery cell 100, negative pole is connected, for the current value situation of change by detecting this battery cell 100, the mode such as quickly fall of the change of the sense of current or output voltage judges whether this battery cell enters electric discharge transient process, once judge to enter electric discharge transient process, then start control signal by gas signal output part to the control signal outfan output sampling controlling voltage sample module 10, start the output voltage of battery cell 100 is sampled controlling this voltage sample module 10, start whether it is broken down to judge with this.
Embodiment three
The schematic diagram of the failure detector of a kind of battery cell that Fig. 3 provides for the another embodiment of the application.
As it is shown on figure 3, the failure detector that the present embodiment provides is to be additionally arranged sample process module 80 on the basis of a upper embodiment, sample process module 80 is provided with signal input part and signal output part.
The signal input part of this sample process module 80 is connected with the signal output part of voltage sample module 10, signal output part is set up the signal input part of module 20 and is connected with voltage curve.This sample process module 80 is for giving up process to the sample of voltage sample module 10 output, i.e. give up 0～1,000 ten thousand sample of the beginning part, and set up the signal input part of module 20 by exporting voltage curve by the sample after giving up process, voltage curve is set up module 20 and is set up voltage curve further according to the sample stayed after giving up, and does not i.e. reprocess the sample given up.
For the failure detector that any of the above embodiment is provided, eigenvalue transceiver module 40 therein is additionally provided with signal sending end 43, this transmitting terminal is connected with other battery cells 200 the most respectively, as shown in Figure 4, for the eigenvalue of this battery cell 100 is broadcasted to other battery cells 200, so that whether himself can be broken down according to this method by other battery cells 200 according to the eigenvalue that obtains judge.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, and between each embodiment, identical similar portion sees mutually.Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the application.Multiple amendment to these embodiments will be apparent from for those skilled in the art, and generic principles defined herein can realize in the case of without departing from spirit herein or scope in other embodiments.Therefore, the application is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (5)
1. the failure detector of a battery cell, it is characterised in that include that voltage sample module, voltage curve are set up module, characteristic value calculating module, eigenvalue transceiver module, mean value calculation module and compare to determine module, wherein:
Described voltage sample module is connected with positive pole, the negative pole of above-mentioned battery cell respectively, in being in electric discharge transient process at described battery cell, the output voltage to described battery cell carries out fixed cycle or variable period, the sampling of band timestamp, and exports sample；
The signal output part of signal input part and above-mentioned voltage sample module that described voltage curve sets up module is connected, and is provided with the signal output part of the voltage curve of the described battery cell that the sample obtained for exporting basis is set up；
The signal input part of described characteristic value calculating module is set up module with above-mentioned voltage curve and is connected, and is provided with the signal output part of eigenvalue for exporting the described battery cell characterizing described voltage curve；
Described eigenvalue transceiver module is provided with signal receiving end and signal output part, described signal receiving end includes described battery cell other battery cells, eigenvalue of reception other battery cells described in interior set of cells for connecting, and described signal output part is for exporting the eigenvalue of other battery cells described；
Described mean value calculation module signal output part with the signal output part of described characteristic value calculating module, described eigenvalue transceiver module respectively is connected, and is provided with the mean eigenvalue of eigenvalue for exporting eigenvalue and other battery cells described reflecting described battery cell；
The described module that compares to determine is connected with signal output part, the signal output part of described characteristic value calculating module of described mean value calculation module respectively, for the eigenvalue of described battery cell is compared with described mean eigenvalue, described battery cell eigenvalue relatively as described in the deviation of mean eigenvalue beyond predetermined deviation value, then judge that described battery cell breaks down.
2. failure detector as claimed in claim 1, it is characterised in that also include discharge examination module, wherein:
Described discharge examination module is connected with described positive pole, described negative pole respectively, and arranges the signal output part of output sampling beginning control signal when described battery cell initially enters electric discharge transient process；The signal output part of described discharge examination module is connected with the control signal input of described voltage sample module.
3. failure detector as claimed in claim 1, it is characterised in that also include sample process module, wherein:
The signal input part of described sample process module is connected with the signal output part of described voltage sample module；
The signal input part that the signal output part of described sample process module sets up module with described voltage curve is connected, and for setting up the sample after module exports n the sample giving up described sample beginning to described voltage curve, n is positive integer.
4. failure detector as claimed in claim 3, it is characterised in that n is the positive integer more than 0, less than or equal to 1,000 ten thousand.
5. the failure detector as described in any one of Claims 1 to 4, it is characterized in that, described eigenvalue transceiver module is additionally provided with the signal sending end for connecting other battery cells described, for the eigenvalue of described battery cell being broadcasted other battery cells described.
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| CN201520657668.3U CN205427156U (en) | 2015-08-28 | 2015-08-28 | Free fault detection device of battery |
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| CN201520657668.3U CN205427156U (en) | 2015-08-28 | 2015-08-28 | Free fault detection device of battery |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772077A (en) * | 2016-12-13 | 2017-05-31 | 四川德源电气有限公司 | A kind of accumulator failure detection method |
| CN108287320A (en) * | 2018-02-01 | 2018-07-17 | 安徽创世科技股份有限公司 | A kind of battery capacity inspection optimization method |
| WO2019041816A1 (en) * | 2017-09-04 | 2019-03-07 | 北京迅力世达技术有限公司 | Maintenance method suitable for lithium ion battery energy storage system |
| CN113447832A (en) * | 2020-03-26 | 2021-09-28 | 奥迪股份公司 | Method for detecting foreign cells and/or foreign modules in a vehicle battery device, battery device and motor vehicle having a battery device |
| CN113533974A (en) * | 2021-06-28 | 2021-10-22 | 合肥国轩高科动力能源有限公司 | Method for rapidly judging battery fault |
-
2015
- 2015-08-28 CN CN201520657668.3U patent/CN205427156U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772077A (en) * | 2016-12-13 | 2017-05-31 | 四川德源电气有限公司 | A kind of accumulator failure detection method |
| WO2019041816A1 (en) * | 2017-09-04 | 2019-03-07 | 北京迅力世达技术有限公司 | Maintenance method suitable for lithium ion battery energy storage system |
| CN108287320A (en) * | 2018-02-01 | 2018-07-17 | 安徽创世科技股份有限公司 | A kind of battery capacity inspection optimization method |
| CN113447832A (en) * | 2020-03-26 | 2021-09-28 | 奥迪股份公司 | Method for detecting foreign cells and/or foreign modules in a vehicle battery device, battery device and motor vehicle having a battery device |
| CN113533974A (en) * | 2021-06-28 | 2021-10-22 | 合肥国轩高科动力能源有限公司 | Method for rapidly judging battery fault |
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