CN110212534A - A kind of New-energy electric vehicle charge control system electromagnetic interference filter circuit - Google Patents
A kind of New-energy electric vehicle charge control system electromagnetic interference filter circuit Download PDFInfo
- Publication number
- CN110212534A CN110212534A CN201910440974.4A CN201910440974A CN110212534A CN 110212534 A CN110212534 A CN 110212534A CN 201910440974 A CN201910440974 A CN 201910440974A CN 110212534 A CN110212534 A CN 110212534A
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- Prior art keywords
- capacitor
- electromagnetic interference
- interference filter
- electric vehicle
- new
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- 239000003990 capacitor Substances 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 description 8
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 230000005855 radiation Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
- H02H5/041—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature additionally responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
- H02H5/042—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using temperature dependent resistors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/263—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of measured values
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Abstract
The present invention relates to a kind of switching power supply preamp electromagnetic interference filter circuits, more particularly to a kind of New-energy electric vehicle charge control system electromagnetic interference filter circuit, including ground wire terminal L, fuse F1, one RT1 of thermistor, varistor RV1, capacitor one CX1 and fire line terminal N, one F1 of fuse has been sequentially connected in series between the ground wire terminal L and fire line terminal N, one RV1 of one RT1 of thermistor and varistor, one RV1 of varistor is also in parallel with one CX1 of capacitor, it further include rectifier bridge B, one CX1 of capacitor is in parallel with rectifier bridge B, thus constitute a New-energy electric vehicle charge control system with electromagnetic interference filter circuit can anti-locking system work when the electromagnetic interference that generates, make system work in stable state.
Description
Technical field
The present invention relates to a kind of switching power supply preamp electromagnetic interference filter circuits, and in particular to a kind of New-energy electric vehicle
Charge control system electromagnetic interference filter circuit.
Background technique
Electromagnetic interference EMI has Conduction Interference and two kinds of radiation interference.Conduction Interference refers to through conducting medium an electricity
Another electric network is arrived in signal coupling (interference) on network.Radiation interference refers to that interference source couples its signal by space
(interference) arrives another electric network.In High-Speed PCB and system design, high-frequency signal line, integrated circuit pin, all kinds of patch
Part etc. is all likely to become the radiation interference source with antenna performance, can emit electromagnetic wave and influence in other systems or this system it
The normal work of his subsystem.
Electromagnetic interference route of transmission is generally divided into two kinds, i.e. Conduction coupling mode and radiation coupled modes.Any electromagnetism is dry
The generation disturbed all certainly exists the transmission and transmission channel of interfering energy.It has been generally acknowledged that mode there are two types of electromagnetic interference transmission, one
Kind is conduction transmission mode；Another kind is radiation transmission mode.Therefore from the point of view of disturbed sensor, interference and coupling can be divided into
Conduction coupling and radiation coupling two major classes.
Conduction transmission must have complete circuit connection between interference source and sensor, and interference signal is along this connection
Circuit is transmitted to sensor, occurs interference phenomenon, this transmission circuit may include conducting wire, the conductive member of equipment, power supply,
Common impedance, ground connection plate, resistance, inductance, capacitor and mutual-inductance element etc..
Electromagnetic interference is that very huge, strong electromagnetic interference may make sensitively to the harm of electronic system, equipment
Electronic equipment is damaged because of overload.Peak voltage caused by electromagnetic interference can be such that certain point impurity concentration in emitter junction and collector junction increases
Add, leads to transistor breakdown or internal short-circuit.Enough energy can be absorbed in the transistor that strong radio-frequency electromagnetic works off field, make to tie
Temperature is more than to allow temperature rise and cause to destroy.
Summary of the invention
The technical problem to be solved in the present invention overcomes existing defect, provides a kind of New-energy electric vehicle charge control system
System uses electromagnetic interference filter circuit.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions: a kind of New-energy electric vehicle fills
Electric control system electromagnetic interference filter circuit, including ground wire terminal L, fuse F1, one RT1 of thermistor, varistor
RV1, one CX1 of capacitor and fire line terminal N, have been sequentially connected in series one F1 of fuse, heat between the ground wire terminal L and fire line terminal N
One RV1 of quick one RT1 of resistance and varistor, it further includes rectifier bridge B that one RV1 of varistor is also in parallel with one CX1 of capacitor,
One CX1 of capacitor is in parallel with rectifier bridge B.2, New-energy electric vehicle charge control system according to claim 1 is used
Electromagnetic interference filter circuit further includes two L02 of one L01 of inductance, two CX2 of capacitor and inductance, one CX1 of capacitor and rectifier bridge B
Parallel connection specifically refers in parallel with one CX1 of capacitor after two CX2 of capacitor connects with one L01 of inductance, and rectifier bridge B is concatenated with two L02 of inductance
It is in parallel with two CX2 of capacitor afterwards.
Preferably, further include two RT2 of thermistor, two RT2 of thermistor be serially connected in thermistor RT1 with it is pressure-sensitive
Between one RV1 of resistance.
Preferably, further including relay switch REY and diode D, the relay switch REY in parallel with diode D
Latter end ground connection, other end ground connection.
It is logical with electromagnetic interference filter circuit that the invention has the advantages that: New-energy electric vehicle charge control systems of the invention
The ground wire crossed in city's electric signal is connected to two fuses in parallel, then connect with two concatenated thermistors, this signal with
Firewire is connected to the both ends of varistor, varistor and capacitor and inductance in parallel together, and signal is by two capacitor electricity in parallel
Sense, is finally connected to rectifier bridge, and thus constituting a New-energy electric vehicle charge control system electromagnetic interference filter circuit can
The electromagnetic interference that anti-locking system generates when working makes system work in stable state.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.
Fig. 1 is the circuit signal of New-energy electric vehicle charge control system electromagnetic interference filter circuit of the invention
Figure.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
A kind of New-energy electric vehicle charge control system electromagnetic interference filter circuit, including ground wire terminal L, fuse
F1, one RT1 of thermistor, varistor RV1, one CX1 of capacitor and fire line terminal N, the ground wire terminal L and fire line terminal N it
Between be sequentially connected in series one RV1 of one F1 of fuse, one RT1 of thermistor and varistor, one RV1 of varistor also with capacitor
One CX1 is in parallel, further includes rectifier bridge B, one CX1 of capacitor is in parallel with rectifier bridge B；It further include one L01 of inductance, two CX2 of capacitor
With two L02 of inductance, one CX1 of capacitor and rectifier bridge B parallel connection specifically refer to after two CX2 of capacitor connects with one L01 of inductance with electricity
Hold CX1 parallel connection, rectifier bridge B is in parallel with two CX2 of capacitor after concatenating with two L02 of inductance；It further include two RT2 of thermistor, it is described
Two RT2 of thermistor is serially connected between one RV1 of thermistor RT1 and varistor；It further include relay switch REY and diode
D, the relay switch REY latter end ground connection in parallel with diode D, other end ground connection.
The both ends of two CX2 of one CX1 of capacitor and capacitor are started to exchange fire line and ground wire respectively, and the common mode that can eliminate partial circuit is dry
It disturbs.Two common mode inductances L01 and L02 are able to suppress the common mode interference between firewire and ground wire, and common mode inductance is substantially to utilize
Bidirectional filter can be avoided common-mode signal interference, enable other equipment trouble free services in same electromagnetic interference, and two
A common mode capacitance CX1 and CX2 plays the role of inhibiting common-mode signal.By two common mode inductances incompletely coupling at work,
Two different leakage inductances are generated, can be used as differential mode inductance thus to inhibit the interference of difference mode signal.Concatenated thermistor can
It plays the buffering to electric signal and inhibits the surging signal during starting.When circuit works normally, relay receives signal simultaneously
Keep thermistor short-circuit, this movement can reduce thermistor because sending out energy consumption thermogenetic.Two fuse parallel connection energy
Enough sliding trackle electric currents when electric current continues rising up to a certain numerical value and a certain temperature, protect the normal work of system.
The above are the preferable embodiments of the present invention, and those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and is modified, and therefore, the invention is not limited to above-mentioned specific embodiment, all those skilled in the art exist
Made any conspicuous improvement, replacement or modification all belong to the scope of protection of the present invention on the basis of the present invention.
Claims (4)
1. a kind of New-energy electric vehicle charge control system electromagnetic interference filter circuit, including ground wire terminal L, fuse
F1, one RT1 of thermistor, varistor RV1, one CX1 of capacitor and fire line terminal N, the ground wire terminal L and fire line terminal N it
Between be sequentially connected in series one RV1 of one F1 of fuse, one RT1 of thermistor and varistor, one RV1 of varistor also with capacitor
One CX1 is in parallel, further includes rectifier bridge B, one CX1 of capacitor is in parallel with rectifier bridge B.
2. New-energy electric vehicle charge control system electromagnetic interference filter circuit according to claim 1, feature
It is: further includes two L02 of one L01 of inductance, two CX2 of capacitor and inductance, one CX1 of capacitor is in parallel with rectifier bridge B is specifically referred to
Two CX2 of capacitor is in parallel with one CX1 of capacitor after connecting with one L01 of inductance, rectifier bridge B concatenated with two L02 of inductance after with two CX2 of capacitor
It is in parallel.
3. New-energy electric vehicle charge control system electromagnetic interference filter circuit according to claim 1, feature
Be: further including two RT2 of thermistor, two RT2 of thermistor be serially connected in thermistor RT1 and one RV1 of varistor it
Between.
4. New-energy electric vehicle charge control system electromagnetic interference filter circuit according to claim 1, feature
It is: further includes relay switch REY and diode D, the latter end in parallel with diode D relay switch REY is grounded, separately
One end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910440974.4A CN110212534A (en) | 2019-05-24 | 2019-05-24 | A kind of New-energy electric vehicle charge control system electromagnetic interference filter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910440974.4A CN110212534A (en) | 2019-05-24 | 2019-05-24 | A kind of New-energy electric vehicle charge control system electromagnetic interference filter circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110212534A true CN110212534A (en) | 2019-09-06 |
Family
ID=67788528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910440974.4A Pending CN110212534A (en) | 2019-05-24 | 2019-05-24 | A kind of New-energy electric vehicle charge control system electromagnetic interference filter circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110212534A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243662A (en) * | 2021-11-01 | 2022-03-25 | 南方电网数字电网研究院有限公司 | VFTO anti-interference circuit and switching device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202004507U (en) * | 2011-03-30 | 2011-10-05 | 奇瑞汽车股份有限公司 | Wireless charging system and interference suppresser circuit for electric vehicle |
| CN203339949U (en) * | 2013-07-17 | 2013-12-11 | 华南理工大学 | Driving power supply forestage EMI filtering protection circuit |
| CN206004527U (en) * | 2016-09-09 | 2017-03-08 | 青岛高科通信股份有限公司 | A kind of electric automobile and vehicle-mounted charger EMI filtration module |
-
2019
- 2019-05-24 CN CN201910440974.4A patent/CN110212534A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202004507U (en) * | 2011-03-30 | 2011-10-05 | 奇瑞汽车股份有限公司 | Wireless charging system and interference suppresser circuit for electric vehicle |
| CN203339949U (en) * | 2013-07-17 | 2013-12-11 | 华南理工大学 | Driving power supply forestage EMI filtering protection circuit |
| CN206004527U (en) * | 2016-09-09 | 2017-03-08 | 青岛高科通信股份有限公司 | A kind of electric automobile and vehicle-mounted charger EMI filtration module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243662A (en) * | 2021-11-01 | 2022-03-25 | 南方电网数字电网研究院有限公司 | VFTO anti-interference circuit and switching device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190906 |