CN205453489U - Electric vehicle battery management system power EMC circuit - Google Patents
Electric vehicle battery management system power EMC circuit Download PDFInfo
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- CN205453489U CN205453489U CN201620162785.7U CN201620162785U CN205453489U CN 205453489 U CN205453489 U CN 205453489U CN 201620162785 U CN201620162785 U CN 201620162785U CN 205453489 U CN205453489 U CN 205453489U
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Abstract
The utility model relates to an electric vehicle battery management system power EMC circuit, including safety protection unit, electromagnetic interference filtering unit and isolation unit, the input of safety protection unit with hold the battery output end and link to each other, its output links to each other with the input of electromagnetic interference filtering unit, the output of electromagnetic interference filtering unit links to each other with the input of keeping apart the unit, the output of keeping apart the unit links to each other with the DCDC reduction voltage circuit. The utility model discloses can effectual suppression electromagnetic interference the radiation, improved circuit's anti -interference ability, through electromagnetic interference filter circuit, reduce input DC voltage AC component, filtering electromagnetic interference makes input DC voltage ripple coefficient reduce, provides the assurance of reliability for rear end voltage input.
Description
Technical field
This utility model relates to power technique fields, is specifically related to a kind of cell management system of electric automobile power supply EMC circuit.
Background technology
Using developing rapidly of increasingly extensive and computer and telecommunications along with electronic electric equipment, people are to EMC(electromagnetic compatibility) problem the most more and more paid attention to, and its reason is it will be evident that owing to electromagnetic environment is the most complicated, electromagnetic pollution is also on the rise.Power circuit and other electronics, electrical equipment as cell management system of electric automobile are the same, should have the consideration in terms of EMC and requirement, not only self can could normally work, the most do not harass other equipment simultaneously and normally work in complicated electromagnetic environment.
Cell management system of electric automobile is operated in the environment of a high-voltage large current, and the bad battery management system system that power supply processes is highly susceptible to the impact of electromagnetic interference and causes whole system operation abnormal.
Utility model content
The purpose of this utility model is that providing a kind of has the cell management system of electric automobile power supply EMC circuit that electromagnetism interference is effective and reliability is high.
For achieving the above object; this utility model have employed techniques below scheme: includes security protection unit, EMI Filtering unit and isolated location; the input of described security protection unit is connected with the outfan of accumulator; its outfan is connected with the input of EMI Filtering unit; the outfan of EMI Filtering unit is connected with the input of isolated location, and the outfan of isolated location is connected with DC/DC reduction voltage circuit.
Described security protection unit includes Transient Suppression Diode TVS1, Schottky diode D1 and electric fuse F1; the described negative electrode of Transient Suppression Diode TVS1 is connected with the positive pole of accumulator; its anode is connected with the negative pole of accumulator; the anode of described Schottky diode D1 is connected with the negative electrode of Transient Suppression Diode TVS1, and its negative electrode is connected through the input of electric fuse F1 with EMI Filtering unit.
Described EMI Filtering unit includes polar capacitor C1, C2, C3 and associate coil LB1, LB2, described isolated location uses inductance L1, the first input end of described associate coil LB1 is connected with electric fuse F1, second input end grounding and the anode with Transient Suppression Diode TVS1 are connected, the first of associate coil LB1, two outfans respectively with the first of associate coil LB2, two inputs are connected, first outfan of associate coil LB2 is connected with one end of inductance L1, its second output head grounding, the first of associate coil LB2, two outfans are connected with DC/DC reduction voltage circuit；The positive pole of described polar capacitor C1 is connected with the first input end of associate coil LB1, its negative pole is connected with second input of associate coil LB1, the positive pole of polar capacitor C2 is connected with first outfan of associate coil LB1, its negative pole is connected with second outfan of associate coil LB1, the positive pole of described polar capacitor C3 is connected with first outfan of associate coil LB2, its negative pole is connected with second outfan of associate coil LB2, second outfan of described associate coil LB1 and the second equal ground connection of outfan of associate coil LB2.
The model of described Transient Suppression Diode TVS1 is SMBS33A, and the model of described electric fuse F1 is 0263005(250V5A).
The model of described associate coil LB1 is LB629(4.7MH) TCUU98V.
As shown from the above technical solution, this utility model has the advantage that
(1) electromagnetism interference is effective.Input at power supply uses safety protective circuit, when input is by reverse transient state high energy impact events, Transient Suppression Diode TVS1 can absorb the surge power of several kilowatts, make input two interpolar voltage clamp in a predetermined value, in effective protection electronic circuit, precision components is from the damage of various surge pulse, when using Schottky diode D1 play rectification and the effect preventing voltage reversal and use special fast fuse wire F1 to be impacted by instantaneous large-current when input terminal voltage in the rear end of Transient Suppression Diode TVS1, this electric fuse can with quick fuse thus ensure that back-end circuit is unaffected.
(2) reliability is high.Electromagnetic interference filter circuit uses ∏ type filter circuit and LC type filter circuit design to reduce input DC voltage alternating component, is that input DC voltage ripple factor reduces, provides the guarantee of reliability for the input of rear terminal voltage.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described further:
As shown in Figure 1; the cell management system of electric automobile power supply EMC circuit of the present embodiment; including security protection unit 1 and EMI Filtering unit 2 and isolated location 3; the input of security protection unit 1 is connected with the outfan of accumulator; its outfan is connected with the input of EMI Filtering unit 2; the outfan of EMI Filtering unit 2 is connected with the input of isolated location 3, and the outfan of isolated location 3 is connected with DC/DC reduction voltage circuit.
This security protection unit 1 includes Transient Suppression Diode TVS1, Schottky diode D1 and electric fuse F1; the negative electrode of Transient Suppression Diode TVS1 is connected with the positive pole of direct current 24V accumulator; its anode is connected with the negative pole of direct current 24V accumulator; the anode of Schottky diode D1 is connected with the negative electrode of Transient Suppression Diode TVS1, and its negative electrode is connected through the input of electric fuse F1 with EMI Filtering unit 2.Arranging Transient Suppression Diode TVS1 to take SMBS33A, Schottky diode D1 and take S3M, special fast fuse wire F1 is 0263005(250V5A).Here; the Transient Suppression Diode TVS1 selected can absorb 6600W surge power; surge voltage is shunted and clamps; thus each element is not damaged by moment surge pulse voltage in protection circuit; Schottky diode D1 is to prevent voltage reversal; the fast electric fuse F1 that recovers is increased to certain height when current anomaly, self fuses and cuts off electric current, thus playing the effect of protection back-end circuit.
EMI Filtering unit 2 includes polar capacitor C1, C2, C3 and associate coil LB1, LB2, isolated location 3 uses inductance L1, in the present embodiment, the model of associate coil LB1 is LB629(4.7MH) TCUU98V, the first input end of this associate coil LB1 is connected with electric fuse F1, second input end grounding and the anode with Transient Suppression Diode TVS1 are connected, the first of associate coil LB1, two outfans respectively with the first of associate coil LB2, two inputs are connected, first outfan of associate coil LB2 is connected with one end of inductance L1, its second output head grounding, the first of associate coil LB2, two outfans are connected with DC/DC reduction voltage circuit；The positive pole of polar capacitor C1 is connected with the first input end of associate coil LB1, its negative pole is connected with second input of associate coil LB1, the positive pole of polar capacitor C2 is connected with first outfan of associate coil LB1, its negative pole is connected with second outfan of associate coil LB1, the positive pole of polar capacitor C3 is connected with first outfan of associate coil LB2, its negative pole is connected with second outfan of associate coil LB2, second outfan of associate coil LB1 and the second equal ground connection of outfan of associate coil LB2.Here, C1, LB1, C2 constitute ∏ type filter circuit, and LB2, C3 constitute LC type filter circuit, reduce input DC voltage alternating component, filter electromagnetic interference, make input DC voltage ripple factor reduce, and provide the guarantee of reliability for the input of rear terminal voltage.
This utility model passes through security protection unit, selects to meet national standard EMC test protection device, it is possible to effectively suppress electromagnetic interference (EMI) emissions, improve the interference free performance of circuit；By electromagnetic interference filter circuit, reduce input DC voltage alternating component, filter electromagnetic interference, make input DC voltage ripple factor reduce, the guarantee of reliability is provided for the input of rear terminal voltage.
Embodiment described above is only to be described preferred implementation of the present utility model; not scope of the present utility model is defined; on the premise of without departing from this utility model design spirit; various deformation that the technical solution of the utility model is made by those of ordinary skill in the art and improvement, all should fall in the protection domain that this utility model claims determine.
Claims (5)
1. a cell management system of electric automobile power supply EMC circuit; it is characterized in that: include security protection unit (1), EMI Filtering unit (2) and isolated location (3); the input of described security protection unit (1) is connected with the outfan of accumulator; its outfan is connected with the input of EMI Filtering unit (2); the outfan of EMI Filtering unit (2) is connected with the input of isolated location (3), and the outfan of isolated location (3) is connected with DC/DC reduction voltage circuit.
Cell management system of electric automobile power supply EMC circuit the most according to claim 1; it is characterized in that: described security protection unit (1) includes Transient Suppression Diode TVS1, Schottky diode D1 and electric fuse F1; the described negative electrode of Transient Suppression Diode TVS1 is connected with the positive pole of accumulator; its anode is connected with the negative pole of accumulator; the anode of described Schottky diode D1 is connected with the negative electrode of Transient Suppression Diode TVS1, and its negative electrode is connected through the input of electric fuse F1 with EMI Filtering unit (2).
Cell management system of electric automobile power supply EMC circuit the most according to claim 1, it is characterized in that: described EMI Filtering unit (2) includes polar capacitor C1, C2, C3 and associate coil LB1, LB2, described isolated location (3) uses inductance L1, the first input end of described associate coil LB1 is connected with electric fuse F1, second input end grounding and the anode with Transient Suppression Diode TVS1 are connected, the first of associate coil LB1, two outfans respectively with the first of associate coil LB2, two inputs are connected, first outfan of associate coil LB2 is connected with one end of inductance L1, its second output head grounding, the first of associate coil LB2, two outfans are connected with DC/DC reduction voltage circuit；The positive pole of described polar capacitor C1 is connected with the first input end of associate coil LB1, its negative pole is connected with second input of associate coil LB1, the positive pole of polar capacitor C2 is connected with first outfan of associate coil LB1, its negative pole is connected with second outfan of associate coil LB1, the positive pole of described polar capacitor C3 is connected with first outfan of associate coil LB2, its negative pole is connected with second outfan of associate coil LB2, second outfan of described associate coil LB1 and the second equal ground connection of outfan of associate coil LB2.
Cell management system of electric automobile power supply EMC circuit the most according to claim 1, it is characterised in that: the model of described Transient Suppression Diode TVS1 is SMBS33A, and the model of described electric fuse F1 is 0263005(250V5A).
Cell management system of electric automobile power supply EMC circuit the most according to claim 1, it is characterised in that: the model of described associate coil LB1 is LB629 (4.7MH) TCUU98V.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620162785.7U CN205453489U (en) | 2016-03-03 | 2016-03-03 | Electric vehicle battery management system power EMC circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620162785.7U CN205453489U (en) | 2016-03-03 | 2016-03-03 | Electric vehicle battery management system power EMC circuit |
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| CN205453489U true CN205453489U (en) | 2016-08-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403103A (en) * | 2016-09-06 | 2017-02-15 | 深圳市玖品空气净化科技有限公司 | Bladeless fan with online mist spraying refreshing function |
| CN107579656A (en) * | 2017-08-23 | 2018-01-12 | 北京新能源汽车股份有限公司 | A kind of DC dc converter and electric automobile |
| CN110907802A (en) * | 2019-11-19 | 2020-03-24 | 北京东方逸腾数码医疗设备技术有限公司 | State detection device |
| CN113570827A (en) * | 2021-06-30 | 2021-10-29 | 深圳市科陆精密仪器有限公司 | Relay extension module and gas detection alarm system |
| CN115473013A (en) * | 2022-09-26 | 2022-12-13 | 梅赛德斯-奔驰集团股份公司 | Bus bar assembly for power battery pack and power battery pack |
-
2016
- 2016-03-03 CN CN201620162785.7U patent/CN205453489U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403103A (en) * | 2016-09-06 | 2017-02-15 | 深圳市玖品空气净化科技有限公司 | Bladeless fan with online mist spraying refreshing function |
| CN106403103B (en) * | 2016-09-06 | 2019-08-20 | 佛山市顺德区金图亮电器有限公司 | A kind of bladeless fan with function of relieving summer heat by spraying online |
| CN107579656A (en) * | 2017-08-23 | 2018-01-12 | 北京新能源汽车股份有限公司 | A kind of DC dc converter and electric automobile |
| CN110907802A (en) * | 2019-11-19 | 2020-03-24 | 北京东方逸腾数码医疗设备技术有限公司 | State detection device |
| CN113570827A (en) * | 2021-06-30 | 2021-10-29 | 深圳市科陆精密仪器有限公司 | Relay extension module and gas detection alarm system |
| CN115473013A (en) * | 2022-09-26 | 2022-12-13 | 梅赛德斯-奔驰集团股份公司 | Bus bar assembly for power battery pack and power battery pack |
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