CN103855765A - Battery management system protecting device preventing over-voltage impact - Google Patents
Battery management system protecting device preventing over-voltage impact Download PDFInfo
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- CN103855765A CN103855765A CN201410036124.5A CN201410036124A CN103855765A CN 103855765 A CN103855765 A CN 103855765A CN 201410036124 A CN201410036124 A CN 201410036124A CN 103855765 A CN103855765 A CN 103855765A
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Abstract
The invention discloses a battery management system protecting device preventing over-voltage impact. A battery management system comprises a charge drive module and a discharge drive module. The protecting device is characterized by comprising a charge MOS tube, a discharge MOS tube and a plurality of transient suppression diodes. The charge drive module and the discharge module are connected with the charge MOS tube and the discharge MOS tube respectively. The transient suppression diodes are connected between a drain electrode and a source electrode of the discharge MOS tube in parallel. According to the protecting device, the transient suppression diodes are connected between the source electrode and the drain electrode of the discharge MOS tube in parallel, so that voltage is limited within a safety working area of the discharge MOS tube, the safety of the discharge MOS tube is ensured, and the battery management system is stable.
Description
Technical field
The present invention relates to battery management system technical field, the battery management system protective device that particularly a kind of anti-overvoltage is impacted.
Background technology
Along with the development of electronic industry, people are increasing to the demand of clean energy resource, and battery is as a kind of storage medium of the energy, has the features such as energy density is high, environmentally safe, and its range of application is more and more extensive.But, safe and reliable use battery, just need to monitor battery a kind of device, thereby prevent the situations such as battery overcharges, overdischarge, short circuit and the battery life that causes seriously shortens, even cause the generation of the situations such as security incident.This device is exactly battery management system.
At present, existing battery management system comprises battery detection device, multiple resistance and multiple metal-oxide-semiconductor, and battery detection device is for detection of each battery both end voltage, at cell voltage during higher than a certain threshold values, this battery and metal-oxide-semiconductor conducting in parallel, the battery being full of to other to fall electric voltage equalization.
The multi-factor structure of general high-power MOS tube shortens dramatically the channel length of each MOS element, and be the raceway groove parallel connection of all MOS elements, this certainly will make channel resistance significantly reduce, thereby makes under same rated junction temperature, and its on state current improves greatly.In addition, channel length shortens, and is that the transit time of charge carrier reduces.The parallel connection of raceway groove has allowed more charge carrier to spend more simultaneously, and shortened its switching time, although make like this MOS element can pass through larger electric current, MOS component pressure can reduce a lot.While being particularly applied in heavy-current discharge, because load may be perceptual, the moment of turn-offing MOS element can produce induced voltage, and punctures MOS element, causes battery management system unstable.
In order to overcome the problems referred to above, common way is the metal-oxide-semiconductor afterflow that adopts high Breakdown Voltage Power, but this has but improved the cost of battery management system greatly.
Summary of the invention
The technical problem to be solved in the present invention is: the low on-resistance metal-oxide-semiconductor in battery management system is when by larger electric current, the withstand voltage of metal-oxide-semiconductor can reduce a lot, the moment of turn-offing metal-oxide-semiconductor can produce induced voltage, thereby punctures metal-oxide-semiconductor, causes the unstable of battery management system.
The technical solution adopted for the present invention to solve the technical problems is:
The battery management system protective device that anti-overvoltage is impacted, described battery management system comprises charging driver module and electric discharge driver module, it is characterized in that, described protective device comprises charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor and some Transient Suppression Diodes; Described charging driver module is connected with described charging metal-oxide-semiconductor and described electric discharge metal-oxide-semiconductor respectively with described discharge module; Several Transient Suppression Diodes in parallel between the drain electrode of described electric discharge metal-oxide-semiconductor and source electrode.
Further, the power of described Transient Suppression Diode and quantity draw according to maximum overpressure and instantaneous large-current estimation.
Further, described charging driver module is connected with the grid of described charging metal-oxide-semiconductor.
Further, a voltage-stabiliser tube in parallel also between the source electrode of described charging metal-oxide-semiconductor and drain electrode, the positive pole of described voltage-stabiliser tube is connected with the source electrode of described charging metal-oxide-semiconductor, and its negative pole is connected with the drain electrode of described charging metal-oxide-semiconductor.
Further, described electric discharge driver module is connected with the grid of described electric discharge metal-oxide-semiconductor.
Further, a voltage-stabiliser tube in parallel also between the source electrode of described electric discharge metal-oxide-semiconductor and drain electrode, the positive pole of described voltage-stabiliser tube is connected with the source electrode of described electric discharge metal-oxide-semiconductor, and its negative pole is connected with the drain electrode of described electric discharge metal-oxide-semiconductor.
The invention has the beneficial effects as follows: the present invention is by the source electrode at electric discharge metal-oxide-semiconductor and drain electrode two ends multiple Transient Suppression Diodes in parallel, thereby by limiting voltage electric discharge metal-oxide-semiconductor area of safety operaton in, the safety that has guaranteed electric discharge metal-oxide-semiconductor, makes battery management system more stable.
Accompanying drawing explanation
Fig. 1 is electrical block diagram of the present invention.
Wherein, the 01-driver module that charges, the 02-driver module that discharges, the 03-metal-oxide-semiconductor that charges, 04 electric discharge metal-oxide-semiconductor, 05-Transient Suppression Diode, 06-voltage-stabiliser tube.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, the charging driver module 01 of battery management system and electric discharge driver module 02; Battery management system protective device comprises charging metal-oxide- semiconductor 03,05 and 2 voltage-stabiliser tubes 06 of electric discharge 04,5 Transient Suppression Diodes of metal-oxide-semiconductor; Charging driver module 01 is connected with the grid of charging metal-oxide-semiconductor 03, electric discharge driver module 02 is connected with the grid of electric discharge metal-oxide-semiconductor 04, and, source electrode and drain electrode two ends at charging metal-oxide-semiconductor 03 and electric discharge metal-oxide-semiconductor 04 are connected with respectively a voltage-stabiliser tube 06, its source electrode is connected with the positive pole of voltage-stabiliser tube 06, and its drain electrode is connected with the negative pole of voltage-stabiliser tube 06.
Maximum innovation of the present invention is, electric discharge metal-oxide-semiconductor 04 source electrode and drain electrode between be also parallel with some Transient Suppression Diodes 05, in this enforcement figure, adopt 5 Transient Suppression Diodes 05 as an example, in actual applications, the power of Transient Suppression Diode 05 and quantity can according to electric discharge metal-oxide-semiconductor 04 two ends maximum overpressure and moment maximum current estimate.Concrete grammar belongs to those skilled in the art's common method, no longer describes in detail herein.
The present invention is in specific works process, when the induced voltage producing when load two ends is greater than the puncture voltage of Transient Suppression Diode 05, Transient Suppression Diode 05 can absorb overvoltage, although the puncture voltage of Transient Suppression Diode 05 is inconsistent, but multiple transient voltage suppressor parallelings can be by the limiting voltage at electric discharge metal-oxide-semiconductor 04 two ends in the working region of a safety, thereby guarantee the safety of electric discharge metal-oxide-semiconductor 04, made the work safety and stability more of battery management system.
The above-described preferred embodiment of utilizing describes the present invention in detail, but not limits the scope of the invention.Those skilled in the art can, by reading after the present invention, make trickle change and adjustment, and the main idea of the present invention of will can yet be regarded as place, does not also depart from the spirit and scope of the present invention.
Claims (6)
1. the battery management system protective device that anti-overvoltage is impacted, described battery management system comprises charging driver module and electric discharge driver module, it is characterized in that, described protective device comprises charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor and some Transient Suppression Diodes; Described charging driver module is connected with described charging metal-oxide-semiconductor and described electric discharge metal-oxide-semiconductor respectively with described discharge module; Several Transient Suppression Diodes in parallel between the drain electrode of described electric discharge metal-oxide-semiconductor and source electrode.
2. the battery management system protective device that a kind of anti-overvoltage as claimed in claim 1 is impacted, is characterized in that, the power of described Transient Suppression Diode and quantity draw according to maximum overpressure and instantaneous large-current estimation.
3. the battery management system protective device that a kind of anti-overvoltage as claimed in claim 1 is impacted, is characterized in that, described charging driver module is connected with the grid of described charging metal-oxide-semiconductor.
4. the battery management system protective device that a kind of anti-overvoltage as claimed in claim 3 is impacted; it is characterized in that; a voltage-stabiliser tube in parallel also between the source electrode of described charging metal-oxide-semiconductor and drain electrode; the positive pole of described voltage-stabiliser tube is connected with the source electrode of described charging metal-oxide-semiconductor, and its negative pole is connected with the drain electrode of described charging metal-oxide-semiconductor.
5. the battery management system protective device that a kind of anti-overvoltage as claimed in claim 1 is impacted, is characterized in that, described electric discharge driver module is connected with the grid of described electric discharge metal-oxide-semiconductor.
6. the battery management system protective device that a kind of anti-overvoltage as claimed in claim 1 is impacted; it is characterized in that; a voltage-stabiliser tube in parallel also between the source electrode of described electric discharge metal-oxide-semiconductor and drain electrode; the positive pole of described voltage-stabiliser tube is connected with the source electrode of described electric discharge metal-oxide-semiconductor, and its negative pole is connected with the drain electrode of described electric discharge metal-oxide-semiconductor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410036124.5A CN103855765A (en) | 2014-01-26 | 2014-01-26 | Battery management system protecting device preventing over-voltage impact |
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| CN201410036124.5A CN103855765A (en) | 2014-01-26 | 2014-01-26 | Battery management system protecting device preventing over-voltage impact |
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| CN103855765A true CN103855765A (en) | 2014-06-11 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485644A (en) * | 2014-11-26 | 2015-04-01 | 四川天启智源科技有限公司 | Intelligent building energy management system |
| CN106684976A (en) * | 2016-12-19 | 2017-05-17 | 江苏嘉钰新能源技术有限公司 | Power charging and discharging device for backup power source using MOS tubes |
| CN106786928A (en) * | 2016-12-29 | 2017-05-31 | 惠州市蓝微新源技术有限公司 | A kind of BMS charge and discharge controls protection circuit |
| CN106803520A (en) * | 2016-08-27 | 2017-06-06 | 湖北文理学院 | A kind of many PN junction Transient Suppression Diodes and its application method for arrester |
| CN107167720A (en) * | 2017-05-10 | 2017-09-15 | 江苏新广联半导体有限公司 | Capacitor charge and discharge device |
| CN110267417A (en) * | 2019-06-10 | 2019-09-20 | 海洋王（东莞）照明科技有限公司 | A kind of explosion-proof circuit control device and explosion-proof lamp |
| CN110797937A (en) * | 2019-10-17 | 2020-02-14 | 南京金邦动力科技有限公司 | BMS charge and discharge management circuit |
| CN111030223A (en) * | 2019-12-20 | 2020-04-17 | 苏州妙益科技股份有限公司 | Charging and discharging MOS (metal oxide semiconductor) protection circuit |
| CN111952951A (en) * | 2020-07-31 | 2020-11-17 | 西安电子工程研究所 | Simple power supply surge prevention method |
| CN115001117A (en) * | 2022-08-02 | 2022-09-02 | 荣耀终端有限公司 | Charging circuit, battery module, battery and electronic equipment |
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| CN1201287A (en) * | 1997-02-04 | 1998-12-09 | 精工电子有限公司 | Charging and discharging control circuit |
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| CN203691022U (en) * | 2014-01-26 | 2014-07-02 | 江苏博强新能源科技有限公司 | Overvoltage impact preventing battery management system protection device |
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- 2014-01-26 CN CN201410036124.5A patent/CN103855765A/en active Pending
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| CN1201287A (en) * | 1997-02-04 | 1998-12-09 | 精工电子有限公司 | Charging and discharging control circuit |
| US20090295332A1 (en) * | 2008-06-03 | 2009-12-03 | Samsung Sdi Co., Ltd. | Battery pack and charging method for the same |
| CN101931320A (en) * | 2010-01-28 | 2010-12-29 | 艾默生网络能源有限公司 | PFC (Power Factor Correction) voltage-reduction adjusting circuit and method as well as switch rectifier |
| CN203339780U (en) * | 2013-07-31 | 2013-12-11 | 重庆先锋渝州电器有限公司 | Battery cell voltage balancing module |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485644A (en) * | 2014-11-26 | 2015-04-01 | 四川天启智源科技有限公司 | Intelligent building energy management system |
| CN106803520A (en) * | 2016-08-27 | 2017-06-06 | 湖北文理学院 | A kind of many PN junction Transient Suppression Diodes and its application method for arrester |
| CN106684976A (en) * | 2016-12-19 | 2017-05-17 | 江苏嘉钰新能源技术有限公司 | Power charging and discharging device for backup power source using MOS tubes |
| CN106786928A (en) * | 2016-12-29 | 2017-05-31 | 惠州市蓝微新源技术有限公司 | A kind of BMS charge and discharge controls protection circuit |
| CN106786928B (en) * | 2016-12-29 | 2023-10-20 | 惠州市蓝微新源技术有限公司 | BMS charge-discharge control protection circuit |
| CN107167720B (en) * | 2017-05-10 | 2019-12-13 | 江苏新广联半导体有限公司 | Capacitor charging and discharging device |
| CN107167720A (en) * | 2017-05-10 | 2017-09-15 | 江苏新广联半导体有限公司 | Capacitor charge and discharge device |
| CN110267417A (en) * | 2019-06-10 | 2019-09-20 | 海洋王（东莞）照明科技有限公司 | A kind of explosion-proof circuit control device and explosion-proof lamp |
| CN110797937A (en) * | 2019-10-17 | 2020-02-14 | 南京金邦动力科技有限公司 | BMS charge and discharge management circuit |
| CN111030223A (en) * | 2019-12-20 | 2020-04-17 | 苏州妙益科技股份有限公司 | Charging and discharging MOS (metal oxide semiconductor) protection circuit |
| CN111952951A (en) * | 2020-07-31 | 2020-11-17 | 西安电子工程研究所 | Simple power supply surge prevention method |
| CN115001117A (en) * | 2022-08-02 | 2022-09-02 | 荣耀终端有限公司 | Charging circuit, battery module, battery and electronic equipment |
| CN115001117B (en) * | 2022-08-02 | 2022-12-16 | 荣耀终端有限公司 | Charging circuit, battery module, battery and electronic equipment |
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Application publication date: 20140611 |