CN203490315U - Anti-reverse-connection detection circuit for voltage acquisition flat cable - Google Patents
Anti-reverse-connection detection circuit for voltage acquisition flat cable Download PDFInfo
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- CN203490315U CN203490315U CN201320531331.9U CN201320531331U CN203490315U CN 203490315 U CN203490315 U CN 203490315U CN 201320531331 U CN201320531331 U CN 201320531331U CN 203490315 U CN203490315 U CN 203490315U
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- lithium battery
- battery
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- light emitting
- detection circuit
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Abstract
The utility model discloses an anti-reverse-connection detection circuit for a voltage acquisition flat cable. The detection circuit comprises a lithium battery formed by a plurality of lithium cells connected in series, and further comprises light emitting diodes, current-limiting resistors and self-recovery fuses. The anode of the light emitting diode is connected with the self-recovery fuse through the current-limiting resistor, forming a basic detection circuit. The cathodes of the light emitting diodes in the plurality of basic detection circuits, which match with the lithium cells in the lithium battery in quantity, are connected with the cathodes of the lithium cells in the lithium battery. The self-recovery fuses in the plurality of basic detection circuits are sequentially connected with the anodes of the lithium cells in the lithium battery. Compared with the conventional one-by-one wire detection method, the detection circuit provided by the utility model greatly increases the system detection efficiency, and prevents hidden troubles of the battery management system caused by reverse connection of the battery.
Description
Technical field
The utility model relates to a kind of anti-reverse testing circuit for voltage acquisition winding displacement.
Background technology
Along with becoming increasingly conspicuous of the energy, environmental issue, electric automobile is more and more subject to the attention of countries in the world with its zero-emission, low noise and other advantages.A large amount of cells are composed in series electric battery and add that a set of battery management system forms a power-supply system and provides power for electric automobile, and the performance parameter of power-supply system becomes the key factor that affects electric automobile performance.Electric automobile lithium battery group is composed in series by tens of joint cells even up to a hundred, and voltage reaches several hectovolts, if the lithium battery group voltage of electric bus is up to nearly 700 volts.The total voltage of dynamic lithium battery group is an important parameter, needs accurately to measure the total voltage of these several hectovolts.Because the voltage platform of single lithium battery is lower, during application, there is the potential safety hazard of super-charge super-discharge, need carry out rational battery in groups and management of charging and discharging.Battery management system need connect tens of crosstalks up to a hundred pond to carry out detection and the analysis of battery information, it is any misses, reversal connection all can cause the malfunction of battery management system, even damage, and the signal wire of battery management system is the effective carrier of accurate transmission measurement value.The connection correctness of signal accurately transmission voltage signal can also be found the accuracy problem that battery module is assembled in time.Although precision and the acquisition method for battery management system voltage acquisition all improves a lot in recent years, take precautions against in advance some problem aspects that may occur in voltage detecting still relatively backward.The detection connecting for battery management system signal wire, at present domestic is substantially all to adopt multimeter to measure one by one voltage and the polarity problems of each monomer battery core, this mode wastes time and energy very much, easy flase drop.
Summary of the invention
The technical problems to be solved in the utility model is to provide the anti-reverse testing circuit of a kind of voltage acquisition winding displacement.
For the technical matters that will solve, the technical solution adopted in the utility model is: the anti-reverse testing circuit of voltage acquisition winding displacement, comprise lithium battery group, lithium battery group is composed in series by a plurality of lithium batteries, also comprises light emitting diode, current-limiting resistance, resettable fuse; Light-emitting diodes tube anode is followed in series to form basic detection loop by current-limiting resistance and resettable fuse; With light emitting diode negative pole in a plurality of basic detection loop that in lithium battery group, lithium battery quantity matches with in electric battery cathode of lithium battery be connected; Resettable fuse in a plurality of basic detections loop is connected with the lithium battery anode in lithium battery group successively.
As preferably, also comprise connector; Connector be located at basic detection loop connect with electric battery in the connecting path of cathode of lithium battery and substantially detect in the connecting path of lithium battery anode in loop and electric battery.
When battery each monomer voltage in groups gathers after the connection of winding displacement wire harness, access voltage acquisition winding displacement inverted connection detecting circuit; If it is normal that all wire harness of electric battery connect, the normal luminous indication of corresponding two groups of light emitting diodes in inverted connection detecting circuit; If the voltage acquisition winding displacement wire harness reversal connection on a certain road, corresponding reversal connection detects and does not work with light emitting diode, and then can judge this loop-coupled reversal connection fault.Compare with adopting the classic method detecting by root wire harness, the utility model has greatly improved the efficiency that system detects, the hidden danger of having avoided battery reversal connection to bring battery management system.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the anti-reverse testing circuit figure for voltage acquisition winding displacement of the utility model embodiment 2.
In figure, D1_fj, D2_fj ..., Dn_fj-light emitting diode, R1_fj, R2_fj ..., Rn_fj-current-limiting resistance, F1_fj, F2_fj ..., Fn_fj-resettable fuse, C0, C1, C2 ..., Cn-1-battery 1, battery 2 ..., battery n negative pole, the positive pole of Cn-battery n, J0-connector, J1-Wiring harness terminal.
Embodiment
Fig. 1 is the anti-reverse testing circuit of voltage acquisition winding displacement.After light emitting diode D1_fj, power resistor R1_fj and resettable fuse F1_fj series connection for accessing the negative pole C0 of battery 1 and the anodal C1 of battery 1 of electric battery, after light emitting diode Dn_fj, power resistor Rn_fj and resettable fuse Fn_fj series connection, for accessing the negative pole Cn-1 of battery n and the anodal Cn of battery n of electric battery, wherein connecting each wire harness employing of battery-end can be directly to slotting Wiring harness terminal J1 with connector J0 with voltage acquisition winding displacement.During detection, anti-reverse testing circuit terminal J1 by with voltage acquisition winding displacement with being directly connected inserting of connector J0, can directly indicate the collection wire harness of normal connection, detect the collection wire harness of reversal connection.
Detection mode:
The detection mode of anti-reverse testing circuit is to adopt the detection that is connected in parallel of the monocell of reversal connection.
Light emitting diode is directly attempted by each anode and negative loop two ends, realizes its current limit and luminous indication when normally connecting, and realize the overcurrent protection to loop by outside resettable fuse by the resistance of serial connection respective resistance values; When battery connects when normal, between the anodal Cn of battery n and negative pole Cn-1, there is certain battery pressure drop, driving lumination of light emitting diode, indication connects normal, and when the reversal connection of a certain battery two ends, the light emitting diode in this loop is in reverse operation state, cannot conducting, can not normal luminous indication.
Above-described the utility model embodiment, does not form the restriction to the utility model protection domain.Any modification of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in claim protection domain of the present utility model.
Claims (2)
1. the anti-reverse testing circuit of voltage acquisition winding displacement, comprises lithium battery group, and described lithium battery group is composed in series by a plurality of lithium batteries, it is characterized in that: also comprise light emitting diode, current-limiting resistance, resettable fuse; Described light-emitting diodes tube anode is followed in series to form basic detection loop by current-limiting resistance and resettable fuse; With light emitting diode negative pole in a plurality of described basic detection loop that in lithium battery group, lithium battery quantity matches with in electric battery cathode of lithium battery be connected; Resettable fuse in a plurality of described basic detections loop is connected with the lithium battery anode in lithium battery group successively.
2. the anti-reverse testing circuit of voltage acquisition winding displacement according to claim 1, is characterized in that: also comprise connector; Described connector be located at basic detection loop connect with electric battery in the connecting path of cathode of lithium battery and substantially detect in the connecting path of lithium battery anode in loop and electric battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320531331.9U CN203490315U (en) | 2013-08-29 | 2013-08-29 | Anti-reverse-connection detection circuit for voltage acquisition flat cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320531331.9U CN203490315U (en) | 2013-08-29 | 2013-08-29 | Anti-reverse-connection detection circuit for voltage acquisition flat cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203490315U true CN203490315U (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320531331.9U Expired - Lifetime CN203490315U (en) | 2013-08-29 | 2013-08-29 | Anti-reverse-connection detection circuit for voltage acquisition flat cable |
Country Status (1)
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| CN (1) | CN203490315U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297621A (en) * | 2014-10-21 | 2015-01-21 | 北京铁道工程机电技术研究所有限公司 | Voltage collecting device and system for achieving storage battery reverse connection inspection |
| CN108627772A (en) * | 2018-05-04 | 2018-10-09 | 安徽朗越能源股份有限公司 | A kind of lithium battery grouping output voltage method for rapidly testing |
| CN109143080A (en) * | 2018-09-17 | 2019-01-04 | 苏州众鑫凯能源科技有限公司 | Detection system is used in a kind of assembly of lithium battery group |
-
2013
- 2013-08-29 CN CN201320531331.9U patent/CN203490315U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297621A (en) * | 2014-10-21 | 2015-01-21 | 北京铁道工程机电技术研究所有限公司 | Voltage collecting device and system for achieving storage battery reverse connection inspection |
| CN108627772A (en) * | 2018-05-04 | 2018-10-09 | 安徽朗越能源股份有限公司 | A kind of lithium battery grouping output voltage method for rapidly testing |
| CN109143080A (en) * | 2018-09-17 | 2019-01-04 | 苏州众鑫凯能源科技有限公司 | Detection system is used in a kind of assembly of lithium battery group |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 230000 Yaohai Industrial Zone, Hefei New District, Anhui, No. D weft Road, No. 7 Patentee after: Hefei Guoxuan High-Tech Power Energy Co.,Ltd. Address before: 230000 Yaohai Industrial Park, Anhui, Hefei No. D weft Road, No. 7 Patentee before: Hefei Guoxuan High-Tech Power Energy Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |