CN108631582A - A kind of electric source filter circuit, battery management system and automobile - Google Patents
A kind of electric source filter circuit, battery management system and automobile Download PDFInfo
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- CN108631582A CN108631582A CN201810621101.9A CN201810621101A CN108631582A CN 108631582 A CN108631582 A CN 108631582A CN 201810621101 A CN201810621101 A CN 201810621101A CN 108631582 A CN108631582 A CN 108631582A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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Abstract
The embodiment provides a kind of electric source filter circuit, battery management system and automobiles, wherein electric source filter circuit, including：First circuit, for being connect with power supply；Second circuit, for being connect with the first circuit；Wherein, the first circuit receives the power supply signal of power input, and is transmitted to second circuit, and second circuit is by power supply signal to electricity consumption device transmission；First circuit is for inhibiting the electromagnetic interference including common mode interference and DM EMI that the power supply signal from power supply generates；Second circuit is used to control electromagnetic interference in low level.In the solution of the present invention, pass through the filter action of electric source filter circuit, the generation and conduction of the electromagnetic interference from power supply can effectively be inhibited, inhibit electromagnetic interference from source, effectively prevent the external electromagnetic interference generated from power supply signal being followed to be transmitted simultaneously, and then ensureing the stability of data signal transmission and the stability of vehicle condition in automobile, reduction even eliminates safe hidden trouble.
Description
Technical field
The present invention relates to the electromagnetic interferences of automobile to inhibit field, more particularly to a kind of electric source filter circuit, battery management system
System and automobile.
Background technology
On electric vehicle, electrical part is more and is used to examine the electrical part on automobile with many control units
It surveys and/or controls, such as：Battery management system product is mounted in battery pack, is mainly used for monitoring the high pressure of battery pack, insulation
Accurate data are provided for whole to power system of electric automobile with parameters, real-time judgment battery status such as monomer voltage, temperature
The accuracy of the assessment of car state, data is extremely important.But in automobilism, the electrical part including power supply and control
Unit processed is easy to generate electromagnetic interference, and electromagnetic interference can have an impact data-signal, easily generates data transmission fault etc.
Phenomenon in turn results in the state labile of automobile so that automobile storage is in security risk.
Invention content
The embodiment of the present invention technical problems to be solved are to provide a kind of electric source filter circuit, battery management system and vapour
Vehicle easy tos produce electromagnetic interference and is impacted to data-signal, in turn result in vapour to solve electric vehicle in automobilism
The state labile of vehicle so that automobile storage is the security risk the problem of.
In order to solve the above technical problems, the embodiment provides a kind of electric source filter circuits, including：
First circuit, for being connect with power supply；
Second circuit, for being connect with the first circuit；
Wherein, the first circuit receives the power supply signal of power input, and is transmitted to second circuit, and the second circuit will be electric
Source signal is to electricity consumption device transmission；
First circuit is used to inhibit that the power supply signal from power supply to generate including common mode interference and DM EMI
Electromagnetic interference；Second circuit is used to control electromagnetic interference in low level.
Specifically, electric source filter circuit as described above, the first circuit include：One or three terminal capacitance, the first capacitance with
And magnetic bead group；
The first end of one or three terminal capacitance and the anode of power supply connect, and the cathode of second end and power supply connects, third end
Ground connection；
The first end of first capacitance and the anode of power supply connect, and the cathode of second end and power supply connects, and the first capacitance
First end is connect with the first end of the one or three terminal capacitance, and the second end of the first capacitance and the second end of the one or three terminal capacitance connect
It connects；
First of the anode of the first magnetic bead and power supply, the first end of the one or three terminal capacitance, the first capacitance in magnetic bead group
End is connected in series with, and the second magnetic bead is connected company with the cathode of power supply, the second end of the one or three terminal capacitance, the second end of the first capacitance
It connects.
Specifically, electric source filter circuit as described above, second circuit include：Common mode inductance, the first end of common mode inductance
It is connected in series with the anode of power supply, the first end of the one or three terminal capacitance, the first end of the first capacitance and the first magnetic bead；
The second end of common mode inductance and the cathode of power supply, the second end of the one or three terminal capacitance, the second end of the first capacitance
And second magnetic bead be connected in series with；
The third end and the 4th end of common mode inductance are connect with tertiary circuit, and the first end and common mode inductance of common mode inductance
Third end be connected in series with, the second end of common mode inductance and the 4th end of common mode inductance are connected in series with.
Specifically, electric source filter circuit as described above further includes：Tertiary circuit；Tertiary circuit is for being separately connected institute
It states second circuit and electricity consumption device, receives the power supply signal of second circuit transmission, and to electricity consumption device transmission；
Tertiary circuit includes：Two or three terminal capacitance and the second capacitance；
Wherein, the first end of the two or three terminal capacitance and the third end of the anode of power supply and common mode inductance are connected in series with,
4th end of the cathode and common mode inductance of second end and power supply is connected in series with, the third end ground connection of the two or three terminal capacitance；
The first of the first end of the second capacitance and anode of power supply, the third end of common mode inductance and the two or three terminal capacitance
End is connected in series with, and second end is connected with the second end of the cathode of power supply, the 4th end of common mode inductance and the two or three terminal capacitance
Connection.
The embodiments of the present invention also provide a kind of battery management systems, including：Printed circuit board and as described above
Electric source filter circuit；
Wherein, electric source filter circuit is for being separately connected printed circuit board and power supply, the electricity for receiving power input
Source signal is simultaneously transmitted to printed circuit board.
Preferably, battery management system as described above, printed circuit board include：At least one first shield region domain,
First shield region domain is connect with the ground terminal of the power circuit in printed circuit board.
Specifically, battery management system as described above, printed circuit board further include：Secondary shielding ground region and/or
Three shield regions domain；
Wherein, secondary shielding region connect with the ground terminal of the drive signal circuit in printed circuit board；
Third shield region domain is connect with the ground terminal of the working signal circuit in printed circuit board.
Preferably, battery management system as described above, the first shield region domain, secondary shielding ground region and third screen
It covers ground region and is respectively arranged with mounting hole, mounting hole, the shell company of printed circuit board and battery management system are worn by screw
It connects, shell is conductive enclosure.
Preferably, battery management system as described above, printed circuit board further include：Bus plane and/or drive signal layer,
Wherein, bus plane is for arranging power circuit, and drive signal layer is for arranging drive signal circuit.
Another preferred embodiment of the present invention additionally provides a kind of automobile, including：Battery management system as described above.
Compared with prior art, a kind of electric source filter circuit, battery management system and the vapour that the embodiment of the present invention provides
Vehicle at least has the advantages that：
In an embodiment of the present invention, electric source filter circuit include the first circuit being connect with power supply and with the first circuit
The second circuit of connection, the power supply signal of power input need to be transmitted to electrical appliance after the first circuit and second circuit
Part, wherein the first circuit is for inhibiting the electromagnetic interference that the power supply signal from power supply generates, second circuit is for doing electromagnetism
Control is disturbed in low level.When automobilism so that power supply signal during transmission could be defeated after repeatedly filtering
Go out, can effectively prevent the power supply signal from power supply from generating current break and the generation of electromagnetic interference and biography caused by
It leads, inhibits electromagnetic interference from source, while the effective electromagnetic interference for preventing external generation follows power supply signal to be transmitted,
Even if carrying electromagnetic interference in power supply signal as electromagnetic interference is in low level, and reduces the shadow of electromagnetic interference
It rings, and then ensures the stability of data signal transmission and the stability of vehicle condition in automobile, reduce and even eliminate safety
Hidden danger.
Description of the drawings
Fig. 1 is the structural schematic diagram of the electric source filter circuit of the present invention；
Fig. 2 is the structural schematic diagram of the printed circuit board of the present invention.
Specific implementation mode
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.In the following description, such as specific configuration is provided and the specific detail of component is only
In order to help comprehensive understanding the embodiment of the present invention.It therefore, it will be apparent to those skilled in the art that can be to reality described herein
Example is applied to make various changes and modifications without departing from scope and spirit of the present invention.In addition, for clarity and brevity, it is omitted pair
The description of known function and construction.
It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is related with embodiment
A particular feature, structure, or characteristic includes at least one embodiment of the present invention.Therefore, occur everywhere in the whole instruction
" in one embodiment " or " in one embodiment " not necessarily refer to identical embodiment.In addition, these specific feature, knots
Structure or characteristic can in any suitable manner combine in one or more embodiments.
In various embodiments of the present invention, it should be appreciated that the size of the serial number of following each processes is not meant to execute suitable
The execution sequence of the priority of sequence, each process should be determined by its function and internal logic, the reality without coping with the embodiment of the present invention
It applies process and constitutes any restriction.
It should be understood that the terms "and/or", only a kind of incidence relation of description affiliated partner, expression can deposit
In three kinds of relationships, for example, A and/or B, can indicate：Individualism A exists simultaneously A and B, these three situations of individualism B.
In addition, character "/" herein, it is a kind of relationship of "or" to typically represent forward-backward correlation object.
In embodiment provided herein, it should be appreciated that " B corresponding with A " indicates that B is associated with A, can be with according to A
Determine B.It is also to be understood that determine that B is not meant to determine B only according to A according to A, it can also be according to A and/or other information
Determine B.
Referring to Fig. 1, a preferred embodiment of the present invention provides a kind of electric source filter circuit, including：
First circuit 2, for being connect with power supply 1；
Second circuit 3, for being connect with the first circuit 2；
Wherein, the first power circuit 2 receives the power supply signal that power supply 1 inputs, and is transmitted to second circuit 3, second circuit 3
Power supply signal is transmitted to electrical part 5；
What the first circuit 2 was used to that the power supply signal from power supply 1 to be inhibited to generate includes that common mode interference and DM EMI exist
Interior electromagnetic interference；Second circuit 3 is used to control electromagnetic interference in low level.
In an embodiment of the present invention, electric source filter circuit includes the first circuit 2, for being connect with power supply 1；Second circuit
3, for being connect with the first circuit 2；Wherein, the first power circuit 2 receives the power supply signal that power supply 1 inputs, and to second circuit 3
Transmission, second circuit 3 transmit power supply signal to electrical part 5；Wherein the first circuit 2 is for inhibiting the power supply signal from power supply
The electromagnetic interference of generation, second circuit 3 are used to control electromagnetic interference in low level.Wherein, power supply signal includes electric current.When
When automobilism so that power supply signal could export after repeatedly filtering during transmission, can effectively prevent from coming from
The power supply signal of power supply 1 generate current break and caused by electromagnetic interference generation and conduction, inhibit electricity from source
Magnetic disturbance, while the effective electromagnetic interference for preventing external generation follows power supply signal to be transmitted, even if being taken in power supply signal
With electromagnetic interference as electromagnetic interference is in low level, and reduce the influence of electromagnetic interference, and then ensures in automobile
The stability of data signal transmission and the stability of vehicle condition, reduction even eliminate safe hidden trouble.
Referring to Fig. 1, specifically, electric source filter circuit as described above, the first circuit 2 includes：One or three terminal capacitance
201, the first capacitance 202 and magnetic bead group 203；
The first end of one or three terminal capacitance 201 is connect with the anode of power supply 1, and second end is connect with the cathode of power supply 1, the
Three ends are grounded；
The first end of first capacitance 202 is connect with the anode of power supply 1, and second end is connect with the cathode of power supply 1, and the first electricity
The first end of appearance 202 is connect with the first end of the one or three terminal capacitance 201, second end and the one or three terminal of the first capacitance 202
The second end of capacitance 201 connects；
The anode of the first magnetic bead 2031 and power supply 1 in magnetic bead group 203, the first end of the one or three terminal capacitance 201, first
The first end of capacitance 202 is connected in series with, the cathode of the second magnetic bead 2032 and power supply 1, the second end of the one or three terminal capacitance 201,
The second end of first capacitance 202 is connected in series with.
In an embodiment of the present invention, the first circuit 2 includes the one or three terminal capacitance 201, the first capacitance 202 and magnetic bead
Group 203, wherein 201 first end of the one or three terminal capacitance is connect with the anode of power supply 1, and second end is connect with the cathode of power supply 1,
Third end is grounded.One or three terminal capacitance 201 can carry out common mode interference to the power supply signal that power supply 1 is inputted to the first circuit 2
Inhibit, meanwhile, constitute a T-type low-pass filter using lead-in inductance so that be filtered, go compared to using conventional capacitive
In addition to the harmful effect of lead-in inductance, while High frequency filter effect is enhanced, strengthens the inhibition to common mode interference, avoid common mode
Interference has an impact data-signal；
The first end of first capacitance 202 is connect with the anode of power supply 1, and second end is connect with the cathode of power supply 1, is formed as X
Capacitance, the power supply signal inputted to the first circuit 2 to power supply 1 carry out the inhibition of DM EMI, avoid DM EMI logarithm it is believed that
It number has an impact；
Include magnetic bead in magnetic bead group 203, magnetic bead has very high resistivity and magnetic conductivity, is equivalent to resistance and inductance
Series connection, but resistance value and inductance value all change with frequency, have better High frequency filter characteristic, improve the effect of frequency modulation filtering；
Magnetic bead group 203 makes the filter effect of T-type low-pass filter greatly reinforce with 201 compound action of the one or three terminal capacitance simultaneously,
Further suppression common mode interference.
First circuit 2 can have by the combination of above-mentioned one or three terminal capacitance 201, the first capacitance 202 and magnetic bead group 203
The electromagnetic interference including common mode interference and DM EMI of power supply signal of the inhibition of effect from power supply 1, avoids logarithm
It is believed that number impact, and then ensure automobile in the stability of data signal transmission and the stability of vehicle condition, reduce
Even eliminate safe hidden trouble.In an embodiment of the present invention, the one or three terminal capacitance 201, the first capacitance 202 and magnetic bead group
203 quantity is at least one or one group, producer according to actual conditions, such as：Output voltage, power supply 1 and the reception of power supply 1
The distance between electricity consumption device 5 of output etc. is ensureing that the first circuit 2 includes at least one one or three terminal capacitance 201, extremely
On the basis of few first capacitance 202 and at least one set of magnetic bead group 203, any number of one or three terminal capacitance is added
201, the first capacitance 202 and/or magnetic bead group 203, all belong to the scope of protection of the present invention.
Referring to Fig. 1, specifically, electric source filter circuit as described above, second circuit 3 includes：Common mode inductance 301, common mode
The first end of inductance 301 and the anode of power supply 1, the first end of the one or three terminal capacitance 201, the first end of the first capacitance 202 with
And first magnetic bead 2031 be connected in series with, the second end of common mode inductance 301 and the cathode of power supply 1, the one or three terminal capacitance 201 the
Two ends, the second end of the first capacitance 202 and the second magnetic bead 2032 are connected in series with, the third end and the 4th end of common mode inductance 301
It is connect with electricity consumption device 5, and the first end of common mode inductance 301 and the third end of common mode inductance 301 are connected in series with, common mode inductance
301 second end and the 4th end of common mode inductance 301 are connected in series with.
In an embodiment of the present invention, second circuit 3 includes common mode inductance 301, and both direction is opposite on common mode inductance 301
Inductance coil between cancel out each other between the magnetic field that generates, can decay itself work when the electromagnetic interference that generates, meanwhile, inductance
Coil is separately connected power supply 1 and electricity consumption device 5 and forms low-pass filter, can effectively by by the electromagnetic interference of inductance coil into
Row inhibits so that is controlled on very low level by the electromagnetic interference after common mode inductance 301, avoids causing data-signal
It influences, is further ensured that the stability of data signal transmission and the stability of vehicle condition in automobile, reduction are even eliminated
Security risk.
Referring to Fig. 1, specifically, electric source filter circuit as described above further includes：Tertiary circuit 4；Tertiary circuit 4 is used for
It is separately connected second circuit 3 and electricity consumption device 5, receives the power supply signal that second circuit 3 transmits, and transmit to electricity consumption device 5；
Tertiary circuit 4 includes：Two or three terminal capacitance 401 and the second capacitance 402；
Wherein, the first end of the two or three terminal capacitance 401 is gone here and there with the third end of the anode of power supply 1 and common mode inductance 301
Connection connection, second end are connected in series with the cathode of power supply 1 and the 4th end of common mode inductance 301, the two or three terminal capacitance 401
Third end is grounded；
The first end of second capacitance 402 and the anode of power supply 1, the third end of common mode inductance 301 and the two or three terminal electricity
The first end of appearance 401 is connected in series with, second end and the cathode of power supply 1, the 4th end of common mode inductance 301 and the two or three terminal electricity
The second end of appearance 401 is connected in series with.
In an embodiment of the present invention, tertiary circuit 4 includes the two or three terminal capacitance 401 and the second capacitance 402；Second
Three terminal capacitances 401 can carry out common mode again to the power supply signal by common mode inductance 301 before being transmitted to electricity consumption device 5
The inhibition of interference, meanwhile, a T-type low-pass filter is constituted using lead-in inductance, High frequency filter effect is enhanced, strengthens pair
The inhibition of common mode interference, avoids common mode interference from having an impact data-signal；
The first end of second capacitance 402 is connected in series with the third end of common mode inductance 301, second end and common mode inductance 301
The 4th end be connected in series with, be formed as X capacitances, to the power supply signal by common mode inductance 301 be transmitted to electricity consumption device 5 it
Before, the inhibition of DM EMI is carried out again, and DM EMI is avoided to have an impact data-signal.
So that the power supply signal that tertiary circuit 4 inputs power supply 1 is filtered again, inhibit the electricity from power supply 1
The electromagnetic interference including common mode interference and DM EMI that source signal generates, and then ensure data signal transmission in automobile
Stability.In an embodiment of the present invention, magnetic bead group 203 can also be set in tertiary circuit 4, for improving frequency modulation filtering
Effect, while in an embodiment of the present invention, the quantity of the two or three terminal capacitance 401 and the second capacitance 402 is at least one
It is a, producer according to practical situation for example：Between the output voltage of power supply 1, power supply 1 and the electricity consumption device 5 for receiving output away from
Ensureing that tertiary circuit 4 includes the base of at least one two or three terminal capacitance 401 and at least one second capacitance 402 from equal
On plinth, any number of two or three terminal capacitance 401, the second capacitance 402 and/or magnetic bead group 203 are added, belongs to the present invention's
Protection domain.
Preferably, it is embodiment in the present invention, electric source filter circuit is also to returning to from electricity consumption device 5 electricity of power supply 1
Source signal carries out the inhibition of electromagnetic interference so that the power supply signal for returning to power supply 1 is also required to after repeatedly filtering to return
The cathode of power supply 1 avoids electromagnetic interference from entering power supply 1 and is impacted to the normal use of power supply 1, advantageously ensures that power supply 1
Safety and service life, and then be conducive to the stability of vehicle condition, reduction even eliminates safe hidden trouble.
The another preferred embodiment of the present invention additionally provides a kind of battery management system, including：
Printed circuit board and electric source filter circuit as described above；
Wherein, electric source filter circuit is for being separately connected printed circuit board and power supply, the electricity for receiving power input
Source signal is simultaneously transmitted to printed circuit board.
In an embodiment of the present invention, battery management system, including：Printed circuit board and power filter as described above electricity
The power supply signal on road, power input need to be input to after electric source filter circuit in printed circuit board, can make to be input to printing
Without electromagnetic interference or with will not be avoided to the electromagnetic interference that data-signal impacts in power supply signal in circuit board
External electromagnetic interference impacts the data-signal in printed circuit board, so ensure automobile in data signal transmission it is steady
Qualitative and vehicle condition stability, reduction even eliminate safe hidden trouble.
Referring to Fig. 2, it is preferable that battery management system as described above, printed circuit board include：At least one first shielding
Ground region 601, the first shield region domain 601 are connect with the ground terminal of the power circuit 701 in printed circuit board.Preferably,
One shield region domain 601 is two.
In an embodiment of the present invention, printed circuit board have the first shield region domain 601, and with power circuit 701
Ground terminal connects, and the independent grounding of power circuit 701 is arranged so that the high current in power circuit 701 can not be to printing electricity
The data-signal of low current in the plate of road impacts, and advantageously ensures that the stability and automobile of data signal transmission in automobile
The stability of state.In an embodiment of the present invention, it is preferable that the first shield region domain 601 is two, can be by power circuit
701 earth current carries out shunting processing or grounding nearby, avoids single first shield region domain 601 can not in time will be electric
The earth current grounding of source circuit 701 is more than two using the quantity in the first shield region domain 601, and for playing point
Stream effect or the design of ground connection effect nearby all belong to the scope of protection of the present invention.
Referring to Fig. 2, specifically, battery management system as described above, printed circuit board further includes：Secondary shielding ground region
602 and/or third shield region domain 603；
Wherein, secondary shielding region 602 connect with the ground terminal of the drive signal circuit 702 in printed circuit board；
Third shield region domain 603 is connect with the ground terminal of the working signal circuit 703 in printed circuit board.
In an embodiment of the present invention, printed circuit board further includes：Connect with the ground terminal of drive signal circuit 702
Two shield regions domain 602 and/or the third shield region domain 603 being connect with the ground terminal of working signal circuit 703 so that power supply
The earthing position of circuit 701, drive signal circuit 702 and/or working signal circuit 703 is different, avoids between unlike signal
It influences each other caused by the difference of electric current, voltage or other parameters, advantageously ensures that the stability of data signal transmission in automobile
And the stability of vehicle condition.Wherein, to secondary shielding the quantity in region 602 and third shield region domain 603 is not done and is had
Body limits, every to play the ground connection position so that power circuit 701, drive signal circuit 702 and/or working signal circuit 703
Difference is set, the design being had an impact between different circuits is avoided to all belong to the scope of protection of the present invention.
Referring to Fig. 2, it is preferable that battery management system as described above, the first shield region domain 601, secondary shielding area
Domain 602 and third shield region domain 603 are respectively arranged with mounting hole 604, and mounting hole 604, printed circuit are worn by screw
The cage connection of plate and battery management system, shell are conductive enclosure.
In an embodiment of the present invention, the shell of battery management system is conductive enclosure, including but not limited to simple metal
The shell that the material of shell, part metals shell and other conduction properties makes, which part metal shell include but unlimited
It is metal material in upper casing, lower casing is other materials or lower casing is metal material, and upper casing is other materials.First shield region domain
601, secondary shielding region 602 and third shield region domain 603 mounting hole 604 and cage connection are worn by screw, make
The first shield region domain 601, secondary shielding the ground distance in region 602 and third shield region domain 603 shorten, be grounded
Area increases, and can earth current and electromagnetic interference be quickly transmitted to shell, be generated when printed circuit board being avoided to work
Electromagnetic interference influenced caused by the data-signal in printed circuit board；Simultaneously but also earth current generates electromagnetic interference
Probability reduces, even if being not enough to have an impact data-signal if the interference performance of its electromagnetic interference of generation electromagnetic interference, ensures
The stability of data signal transmission and the stability of vehicle condition.
Preferably, battery management system as described above, printed circuit board further include bus plane and/or drive signal layer,
Wherein, bus plane is for arranging power circuit 701, and drive signal layer is for arranging drive signal circuit 702.
In an embodiment of the present invention, printed circuit board further includes：Bus plane for arranging power circuit 701 and/or
Drive signal layer for arranging drive signal circuit 702 makes power circuit 701 and drive signal electricity by way of layering
Road 702 is separated with normal working signal circuit 703, avoids generating electromagnetic interference in car running process to normally working
Signal and data-signal impact, the stability of further data signal transmission and the stability of vehicle condition.
Preferably, the improvement about electric source filter circuit and printed circuit board as described above is not only only capable of being used in
In battery management system, moreover it is possible to be used in other electrical equipments, including but not limited to electric machine controller, entire car controller.
Another preferred embodiment of the present invention additionally provides a kind of automobile, including：Battery management system as described above.
In the automobile that the embodiment of the present invention is provided, including battery management system as described above so that cell tube
Reason system has high accuracy in data transmission, in car running process, reduces and is even that of avoiding data transmission
The generation of phenomena such as mistake ensure that the stabilization of the state of automobile so that automobile is more safe and reliable.
It should also be noted that, the data-signal includes but not limited to working signal in the whole text herein.
In addition, the one or three heretofore described terminal capacitance 201, the first capacitance 202, magnetic bead group 203, common mode inductance
301, the design parameters information such as model of parts such as the two or three terminal capacitance 401 and the second capacitance 402 is not done tired herein
It states, producer carries out production according to the suitable parts of actual conditions selection and all belongs to the scope of protection of the present invention.
In addition, the present invention can in different examples repeat reference numerals and/or letter.This repetition be in order to simplify and
Clear purpose itself does not indicate the relationship between discussed various embodiments and/or setting.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of electric source filter circuit, which is characterized in that including：
First circuit (2), for being connect with power supply (1)；
Second circuit (3) is connect with first circuit (2)；
Wherein, first circuit (2) receives the power supply signal of power supply (1) input, and is passed to the second circuit (3)
Defeated, the second circuit (3) transmits the power supply signal to electricity consumption device (5)；
What first circuit (2) was used to that the power supply signal from the power supply (1) to be inhibited to generate includes common mode interference and difference
Electromagnetic interference including mould interference；The second circuit (3) is used to control electromagnetic interference in low level.
2. electric source filter circuit according to claim 1, which is characterized in that first circuit (2) includes：One or three end
Sub- capacitance (201), the first capacitance (202) and magnetic bead group (203)；
The first end of one or three terminal capacitance (201) is connect with the anode of the power supply (1), second end and the power supply
(1) cathode connection, third end ground connection；
The first end of first capacitance (202) is connect with the anode of the power supply (1), and second end is negative with the power supply (1)
Pole connects, and the first end of first capacitance (202) is connect with the first end of the one or three terminal capacitance (201), described
The second end of first capacitance (202) is connect with the second end of the one or three terminal capacitance (201)；
Positive, described one or three terminal capacitance of the first magnetic bead (2031) and the power supply (1) in the magnetic bead group (203)
(201) first end of first end, first capacitance (202) is connected in series with, the second magnetic bead (2032) and the power supply (1)
Cathode, the second end of the one or three terminal capacitance (201), the second end of first capacitance (202) are connected in series with.
3. electric source filter circuit according to claim 2, which is characterized in that the second circuit (3) includes：Common mode inductance
(301), the first end of the common mode inductance (301) and positive, described one or three terminal capacitance (201) of the power supply (1)
First end, the first end of first capacitance (202) and first magnetic bead (2031) are connected in series with；
The second end of the common mode inductance (301) and the cathode of the power supply (1), the one or three terminal capacitance (201) the
Two ends, the second end of first capacitance (202) and second magnetic bead (2032) are connected in series with；
The third end and the 4th end of the common mode inductance (301) are connect with the electricity consumption device (5), and the common mode inductance
(301) first end and the third end of the common mode inductance (301) are connected in series with, the second end of the common mode inductance (301) with
4th end of the common mode inductance (301) is connected in series with.
4. electric source filter circuit according to claim 3, which is characterized in that further include：Tertiary circuit (4)；The third
Circuit (4) receives the second circuit (3) transmission for being separately connected the second circuit (3) and the electricity consumption device (5)
The power supply signal, and to the electricity consumption device (5) transmit；
The tertiary circuit (4) includes：Two or three terminal capacitance (401) and the second capacitance (402)；
Wherein, the positive and described common mode inductance of the first end of the two or three terminal capacitance (401) and the power supply (1)
(301) third end is connected in series with, second end and the cathode of the power supply (1) and the 4th end of the common mode inductance (301)
It is connected in series with, the third end ground connection of the two or three terminal capacitance (401)；
The third end of the first end of second capacitance (402) and positive, the described common mode inductance (301) of the power supply (1) with
And the first end of the two or three terminal capacitance (401) is connected in series with, the cathode of second end and the power supply (1), the common mode
4th end of inductance (301) and the second end of the two or three terminal capacitance (401) are connected in series with.
5. a kind of battery management system, which is characterized in that including：Printed circuit board and as described in any one of Claims 1-4
Electric source filter circuit；
Wherein, the electric source filter circuit is for being separately connected the printed circuit board and power supply, for receiving power input
Power supply signal and be transmitted to the printed circuit board.
6. battery management system according to claim 5, which is characterized in that the printed circuit board includes：It is at least one
First shield region domain (601), first shield region domain (601) connect with power circuit (701) in printed circuit board
Ground terminal connects.
7. battery management system according to claim 6, which is characterized in that the printed circuit board further includes：Second screen
Cover ground region (602) and/or third shield region domain (603)；
Wherein, the secondary shielding drive signal circuit (702) in region (602) and the printed circuit board ground terminal
Connection；
Third shield region domain (603) is connect with the ground terminal of the working signal circuit (703) in the printed circuit board.
8. battery management system according to claim 7, which is characterized in that first shield region domain (601), described
Secondary shielding region (602) and third shield region domain (603) be respectively arranged with mounting hole (604), pass through screw
The mounting hole (604), the cage connection of the printed circuit board and battery management system are worn, the shell is outside electric conductivity
Shell.
9. battery management system according to claim 7, which is characterized in that the printed circuit board further includes：Bus plane
And/or drive signal layer, wherein bus plane is for arranging the power circuit (701), and the drive signal layer is for arranging institute
State drive signal circuit (702).
10. a kind of automobile, which is characterized in that including：Such as claim 5 to 9 any one of them battery management system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810621101.9A CN108631582A (en) | 2018-06-15 | 2018-06-15 | A kind of electric source filter circuit, battery management system and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810621101.9A CN108631582A (en) | 2018-06-15 | 2018-06-15 | A kind of electric source filter circuit, battery management system and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108631582A true CN108631582A (en) | 2018-10-09 |
Family
ID=63691602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810621101.9A Pending CN108631582A (en) | 2018-06-15 | 2018-06-15 | A kind of electric source filter circuit, battery management system and automobile |
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| Country | Link |
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| CN (1) | CN108631582A (en) |
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| CN111447716A (en) * | 2020-04-23 | 2020-07-24 | 青岛亿联客信息技术有限公司 | Lamp and lighting system |
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