CN103675592B - A kind of battery voltage sampling line detection circuit - Google Patents
A kind of battery voltage sampling line detection circuit Download PDFInfo
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- CN103675592B CN103675592B CN201310653762.7A CN201310653762A CN103675592B CN 103675592 B CN103675592 B CN 103675592B CN 201310653762 A CN201310653762 A CN 201310653762A CN 103675592 B CN103675592 B CN 103675592B
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Abstract
The invention discloses a kind of battery voltage sampling line detection circuit, including the first testing circuit and the second testing circuit；Described first testing circuit includes some detection ports being sequentially connected with respectively with every voltage sample line, connecting between arbitrary neighborhood two detection port and have a LED branch road, one of them detection port is connected to the 2nd LED branch road with remaining all detection port；Described second testing circuit includes having the 3rd LED branch road parallel with one another, the 4th LED branch road by connecting between some detection port arbitrary neighborhoods two detection ports being connected with every voltage sample line respectively.Battery voltage of the present invention sampling line detection circuit, by the two of Opposite direction connection groups of LED branch roads, can judge whether voltage sample line connects anti-and open circuit the most intuitively, and the position of the voltage sample line connecing anti-or open circuit can be demonstrated, improve debugging and maintenance efficiency, improve the quality of BMS product.
Description
Technical field
The present invention relates to battery voltage sampling, particularly to a kind of battery voltage sampling line detection circuit.
Background technology
In battery management system, owing to monitor the voltage of every batteries in real time, therefore need to connect voltage sample line to every batteries is supporting.In electric automobile particularly pure electric automobile, typically there are 100 multiple batteries, thus need 100 a plurality of voltage sample wire harness, when wire harness increases, there will be wire harness wrong unavoidably or voltage sample wire harness circuit exists the situation of fault.
In current battery management system, there is no voltage sample module testing circuit, when battery failure, it is impossible to quickly judgement is fault or the fault of battery sampling circuit of battery itself, to after-sales service, personnel add heavily to the difficulty of the work, and make battery management system the most intelligent.
Summary of the invention
For overcoming the shortcomings and deficiencies of above-mentioned prior art, the present invention provides a kind of battery voltage sampling line detection circuit, can detect that voltage sampling circuit is either with or without open circuit fault occur, either with or without occurring that wire harness connects anti-phenomenon.
The technical solution used in the present invention is:
A kind of battery voltage sampling line detection circuit, including the first testing circuit；Described first testing circuit includes the first port set of some detection port compositions being sequentially connected with respectively with every voltage sample line, connecting between arbitrary neighborhood two detection port and have a LED branch road, one of them detection port is connected to the LED pole of a LED branch road to the 2nd contrary LED branch road with remaining all detection port；A described LED branch road and the 2nd LED branch road all include LED, resistance and the diode of series connection.
Preferably, the second testing circuit is also included；Described second testing circuit includes the second port set being made up of some detection ports being connected respectively with every voltage sample line, connect between arbitrary neighborhood two detection port and have the 3rd LED branch road parallel with one another, the 4th LED branch road, and the resistance connected with the 3rd in parallel LED branch road, the 4th LED branch road, the 3rd LED branch road of described parallel connection and the LED pole of the 4th LED branch road are on the contrary.
Preferably, what the described detection port being connected to the 2nd LED branch road with remaining all detection port was connected is the voltage sample line that current potential is minimum.
Battery voltage of the present invention sampling line detection circuit, by the two of Opposite direction connection groups of LED branch roads, can judge whether voltage sample line connects anti-and open circuit the most intuitively, and the position of the voltage sample line connecing anti-or open circuit can be demonstrated, improve debugging and maintenance efficiency, improve the quality of BMS product.
Accompanying drawing explanation
Fig. 1 is the embodiment schematic diagram of the first testing circuit of the present invention；
Fig. 2 is the embodiment schematic diagram of the second testing circuit of the present invention；
Fig. 3 is the schematic diagram of the first port set of the first testing circuit of the present invention；
Fig. 4 is the schematic diagram of the second port set of the first testing circuit of the present invention.
Detailed description of the invention
The present invention is explained in further detail below in conjunction with accompanying drawing and embodiment for the ease of it will be appreciated by those skilled in the art that.
The battery voltage sampling line detection circuit that the present invention is newly disclosed, including the first testing circuit and the second testing circuit.
Described first testing circuit, as shown in figs. 1 and 3, including the first port set P1 being made up of some detection ports being sequentially connected with every voltage sample line respectively, connecting between adjacent two detection ports and have red LED branch road, each detection port is connected to the green LED branch road reverse with red LED branch road with No. 00 detection port on limit；Described red LED branch road includes red LED, resistance and the diode of series connection, green LED branch road includes green LED, resistance and diode, the positive pole of the most all of green LED all connects with high potential port, red LED positive pole all connects with electronegative potential port, and what No. 00 detection port on described limit connected is the voltage sample line that current potential is minimum.
Described second testing circuit, as shown in Figures 2 and 4, including the second port set P2 being made up of some detection ports being connected with every voltage sample line respectively, connect, between adjacent two detection ports, the red LED branch road having parallel connection, green LED branch road, red LED props up route general-purpose diode, red LED forms, green LED props up route general-purpose diode, green LED forms, LED branch road after parallel connection is again and resistant series, the green LED branch road of described parallel connection is in opposite direction with the LED of green LED branch road, the positive pole of all of green LED all connects with high potential port, red LED positive pole all connects with electronegative potential port.
During specific works, voltage sample line terminals accessing the first port set P1 of the first testing circuit, the first testing circuit access circuit, under normal circumstances, the green LED in Fig. 1 should all be lit, and red LED should all be extinguished.If there being red LED bright, then it represents that the voltage sample line of this branch road has line sequence fault；If having green LED is to extinguish, then it represents that this branch voltage sampling line there may be open circuit fault, or this branch road green LED lamp is damaged.But when red LED is damaged, now voltage sample line is if there is line sequence fault, then green LED is the brightest, red LED is to extinguish, and so will result in erroneous judgement.In order to solve the erroneous judgement caused because red light damages, need to disconnect the first port set, voltage sample line cap and the second port set are connected.
After voltage sample line cap and the second port set P2 connect, the second testing circuit access circuit.Under normal circumstances, the green LED in Fig. 2 all should be bright, if there being line sequence fault, red LED can be bright, and the green LED of corresponding joint number does not works.If the red LED in Fig. 1 has damage, verifying the most further, the probability that in two circuit, the red LED of same area is damaged simultaneously is the least, so through twice checking, it is possible to judge that voltage sample line is either with or without line sequence fault.
Being more than the specific implementation of the present invention, it describes more concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these obvious alternative forms belong to protection scope of the present invention.
Claims (1)
1. a battery voltage sampling line detection circuit, it is characterised in that: include the first testing circuit；Described first testing circuit includes the first port set of some detection port compositions being sequentially connected with respectively with every voltage sample line, connecting between arbitrary neighborhood two detection port and have a LED branch road, one of them detection port is connected to the LED pole of a LED branch road to the 2nd contrary LED branch road with remaining all detection port；A described LED branch road and the 2nd LED branch road all include LED, resistance and the diode of series connection；
Also include preventing from causing erroneous judgement to access the second testing circuit of voltage sample line cap because the LED of a LED branch road damages；Described second testing circuit includes the second port set being made up of some detection ports being connected respectively with every voltage sample line, connect between arbitrary neighborhood two detection port and have the 3rd LED branch road parallel with one another, the 4th LED branch road, and the resistance connected with the 3rd in parallel LED branch road, the 4th LED branch road, 3rd LED branch road and the 4th LED branch road by general-purpose diode and emitting led composition, the 3rd LED branch road of described parallel connection and the LED pole of the 4th LED branch road on the contrary；
What the described detection port being connected to the 2nd LED branch road with remaining all detection port was connected is the voltage sample line that current potential is minimum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310653762.7A CN103675592B (en) | 2013-12-09 | 2013-12-09 | A kind of battery voltage sampling line detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310653762.7A CN103675592B (en) | 2013-12-09 | 2013-12-09 | A kind of battery voltage sampling line detection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103675592A CN103675592A (en) | 2014-03-26 |
| CN103675592B true CN103675592B (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310653762.7A Active CN103675592B (en) | 2013-12-09 | 2013-12-09 | A kind of battery voltage sampling line detection circuit |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405312A (en) * | 2016-08-22 | 2017-02-15 | 北京航博新能科技有限责任公司 | Electric vehicle single battery voltage sampling line connection order detection device and method |
| CN107367666A (en) * | 2017-08-15 | 2017-11-21 | 山东省科学院自动化研究所 | A kind of dynamic lithium battery voltage gathering line wire harness line sequence test device and method |
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Effective date of registration: 20210309 Address after: 516006 3rd floor, No.27 Huifeng Sixth Road, Zhongkai high tech Zone, Huizhou City, Guangdong Province Patentee after: HUIZHOU LEYITONG TECHNOLOGY Co.,Ltd. Address before: 516006 zone 6, Zhongkai high tech Industrial Development Zone, Huizhou City, Guangdong Province Patentee before: HUIZHOU EPOWER ELECTRONICS Co.,Ltd. |
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Address after: 516000 building a, industrial building, No.53, huitai Industrial Park, Zhongkai high tech Zone, Huizhou City, Guangdong Province Patentee after: HUIZHOU LEYITONG TECHNOLOGY Co.,Ltd. Address before: 516006 3rd floor, No.27 Huifeng Sixth Road, Zhongkai high tech Zone, Huizhou City, Guangdong Province Patentee before: HUIZHOU LEYITONG TECHNOLOGY Co.,Ltd. |
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Address after: Leyitong Industrial Park, No. 16 Dongsheng South Road, Chenjiang Street, Zhongkai High tech Zone, Huizhou City, Guangdong Province, 516000 Patentee after: Huizhou Leyitong Technology Co.,Ltd. Country or region after: China Address before: 516000 building a, industrial building, No.53, huitai Industrial Park, Zhongkai high tech Zone, Huizhou City, Guangdong Province Patentee before: HUIZHOU LEYITONG TECHNOLOGY CO.,LTD. Country or region before: China |