CN107800246A - For reducing the device and vehicle of hf interference current - Google Patents
For reducing the device and vehicle of hf interference current Download PDFInfo
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- CN107800246A CN107800246A CN201710749607.3A CN201710749607A CN107800246A CN 107800246 A CN107800246 A CN 107800246A CN 201710749607 A CN201710749607 A CN 201710749607A CN 107800246 A CN107800246 A CN 107800246A
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- section
- drivetrain
- ground connection
- axle
- motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/02—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
- H02K11/028—Suppressors associated with the rotor
Abstract
It is used to reduce the device at least through the hf interference current in the powered drivetrain of motor in vehicle the present invention relates to a kind of, the device, which has, at least one obstructs element and/or at least one row disturbs element, the drivetrain includes at least one first axle section and the second axle section, wherein, the end of first axle section is mechanically effectively connected with the end of the second axle section in order to transmit torque, motor includes at least one first ground connection section in addition, the first ground connection section forms the earth potential of motor, and drivetrain includes the second ground connection section in addition, the second ground connection section forms the earth potential of drivetrain.In addition, carrying motor and the vehicle at least through the powered drivetrain of motor the present invention relates to a kind of, it has the device for being used for reducing the hf interference current in the drivetrain of vehicle.
Description
Technical field
It is used to reduce in vehicle at least through the High-frequency Interference in the powered drivetrain of motor the present invention relates to a kind of
The device of electric current, the device have it is at least one obstruct element and/or at least one row disturbs element, drivetrain includes at least one
First axle section and the second axle section, wherein, the end of the end of first axle section and the second axle section is in order to transmit torque quilt
Mechanically effectively connection, motor include at least one first ground connection section in addition, and the first ground connection section forms the ground electricity of motor
Gesture, and drivetrain includes the second ground connection section in addition, the second ground connection section forms the earth potential of drivetrain.It is in addition, of the invention
Be related to it is a kind of carry motor and the vehicle at least through the powered drivetrain of motor, its have be used for reduce vehicle driving
The device of hf interference current in system.
Background technology
The use of the motor for driving vehicle is known in modern vehicle technology.Here, such vehicle can be such as
It is pure electric vehicle, but equally may be configured to motor vehicle driven by mixed power, the motor vehicle driven by mixed power not only has internal combustion engine to drive
And there is motor.In order to store necessary electric energy, herein commonly using high direct voltage battery.In order to which DC current is changed
Into the alternating current being required mostly by motor commonly using pulse converter (taktender Umrichter, otherwise referred to as when
Clock converter), it may be mounted to that in the power electric device of vehicle.Among other reasons, especially in the feelings of the conversion
Can be generated in shape often has the interference electric current of upper frequency.In the situation without corresponding countermeasure, these interference electric currents can be
In vehicle, especially propagated in the drivetrain of vehicle and cause the interference in the electrical system of vehicle, until interference electric current arrives
Radiation in surrounding environment, it often for example even may interfere with the radio of radio reception, such as vehicle.
According to known in the art, directly at the source of interference electric current, i.e. for example in the converter and/or
The filter for being used for removing especially hf interference current is used in motor.But this is often expensive because due to compared with
Most of high power filter implemented in vehicle is large volume and partly even needs active cooling device.
In addition, obstruct measure (such as clutch of electric insulation) or arranged for example as known to the A1 of file DE 10 2,015 100 847
Disturb measure (such as sliding contact (Schleifkontakte) or conduction supporting arrangement) can be used for decay interference electric current driving
Move the propagation in system or export the interference electric current from drivetrain.But here, such insulation clutch is large volume again
And reduction that often equally cause the torque that can be transmitted in drivetrain in addition.In addition it is proved as follows, i.e. interference electric current is led to
The rolling bearing of conduction or the propagation efficiency of sliding contact are crossed particularly with being reduced for hf interference current.Similarly, this
The rolling bearing or sliding contact of the conduction of sample are subjected to higher abrasion.
The content of the invention
Therefore the task of the present invention is, at least partly eliminates the shortcomings that describe above and improves and is done for reducing high frequency
Disturb the device and vehicle of electric current.Especially task of the invention is, i.e. provides a kind of dress for being used to reduce hf interference current
Put and a kind of vehicle, it causes propagation of the hf interference current in drivetrain in a manner of extremely simple and cost-effective
Reduction as effective as possible is possibly realized and/or so that hf interference current turns into from the export as effective as possible in drivetrain
May.
The device for being used to reduce hf interference current that task above passes through a kind of feature with independent claims 1
To solve.In addition, the task solves by a kind of vehicle of the feature with claim 10 arranged side by side.The present invention is in addition
The advantages of drawn by dependent claims, specification and drawings.Here, the feature described in combination with the apparatus according to the invention
Obviously equally it is applicable in combination with vehicle according to the invention with details and correspondingly vice versa, so that on to each
The disclosure of inventive aspect all the time can be cross-referenced.
According to the first aspect of the invention, the task is driven for reducing by a kind of in vehicle at least through motor
Drivetrain in the device of hf interference current solve, the device has at least one element and/or at least one of obstructing
Row disturbs element, and the drivetrain includes at least one first axle section and the second axle section, wherein, the end of first axle section and the
The end of two axle sections is mechanically effectively connected to transmit torque, and motor includes at least one first ground connection section in addition,
The first ground connection section forms the earth potential of motor, and drivetrain includes the second ground connection section in addition, the second ground connection section shape
Into the earth potential of drivetrain.Apparatus according to the invention is characterized in that, i.e. obstructing element includes and first axle section and second
The decoupling capacitors for the capacitor-decoupling for being used for first axle section and the second axle section that axle section is electrically coupled, and/or row disturb member
Part, which includes conductively being arranged between the second axle section and the second ground connection section, is used for relative second access area of the second axle section
The capacity coupled coupled capacitor device of section, and/or row disturbs element includes electric high-frequency conductors, the electric high-frequency conductors are conductively extremely
It is arranged between the second ground connection section and the first ground connection section small part section.
The apparatus according to the invention is provided for using in the drivetrain of vehicle or locating.As long as in addition, technically may be used
Can ground and/or meaningfully, the apparatus according to the invention may equally be used it is other in this place need reduce High-frequency Interference electricity
In the position of stream.Here, vehicle has the motor for being configured to drive drivetrain.For the purpose, motor is as motor quilt
Operation.In addition, most of motor can be equally run as generator, wherein, the apparatus according to the invention is same in this case
Sample can be used for reducing hf interference current.Here, drivetrain is at least configured to two-piece type and has first axle section and second
Axle section.Here, therefore most of axle section is by metal material and electrically conductive construct.In order to transmit torque, two axle sections
It is mechanically to each other ground effectively connection, wherein, be this especially the first and second axle section each end each other by mechanically effective
Connection, such as pass through grafting teeth portion (Steckverzahnung).Relative to clutch, torque can be provided in this way in axle area
The transmission of particularly effective and free of losses or at least low loss between section.In addition, motor includes the first ground connection section and drive
Dynamic system includes the second ground connection section, and they correspondingly form the earth potential of respective element.Pass through such ground connection section or ground
Potential, security of the user in the situation using motor or drivetrain can be improved and ensure at this, because the danger of electric shock
Thus it can be avoided by or can at least be significantly reduced.Preferably, ground connection section may include the housing of corresponding structural detail herein
Or even formed by the housing.In addition, most of special electric potential balancing conductor between section is grounded is even legally
It is prescribed.
Especially (but equally being caused by other sources) may occur in which hf interference current in the situation of operation motor, the height
Frequency interference electric current can especially be propagated in drivetrain.Here, the high frequency in meaning of the present invention mean especially that it is as follows, i.e.
The frequency of interference electric current is herein several kilo hertzs, often even megahertz or gigahertz.This can for example cause motor in itself or vehicle
Other electric or electronic installation interference.The radiation in interference electric current to surrounding environment especially can be equally produced, thus
Such as radio reception can be disturbed.In order to reduce these interference electric currents, the apparatus according to the invention has at least one obstruct
Element and/or at least one row disturb element.
For the present invention importantly, herein it is at least one obstruct element and/or at least one row disturb element can be with
Different possibility constructs as different measures.Therefore can be set as follows according to the present invention according to the first possibility, i.e.
Obstruct the electricity for being used for first axle section and the second axle section that element includes being electrically coupled with first axle section and the second axle section
Hold the decoupling capacitors of decoupling.By be electrically coupled can provide in a particularly simple way it is as follows, i.e. two axle sections are not straight
Connect and be conductively connected to each other.Thus being configured to the interference electric current of DC current can reliably be avoided.Pass through the solution with low electric capacity
The design of coupling capacitor, in addition hf interference current can be equally suppressed by the transmission of decoupling capacitors, wherein, the suppression
The intensity of system is with the electric capacity increase of the reduction of decoupling capacitors.Here, the electric capacity corresponds to decoupling capacitors as high pass
The function of filter preferably can equally be matched with the frequency to be expected of interference electric current.Here, total work of used measure
With particularly depending on the other spurious impedance being located in drivetrain.Preferably, electric capacity can for example be matched with limiting frequency,
No longer or at least no longer there is or expected the hf interference current being worth mentioning in its top.Here, coupled capacitor device can be such as
Formed by the layer of the electric insulation in the region that machinery effectively connects between the end of axle section.In this manner, especially
Relative to the use of the clutch of electric insulation, weight and/or required structure space can be saved, wherein, in addition equally not
Hinder or only do not hinder significantly at least the transmission of the torque between axle section.It is same by the less requirement to structure space
It can provide as follows, i.e. the coupled capacitor device can be used in close disturbing in without the expensively situation of the change in design
At the source of electric current, for example close to motor.High frequency electric especially early and thus thus effective reduce can be provided.
Alternative or the second extra possibility is importantly arranged to for the present invention, i.e. row, which disturbs element, includes electricity
The electric capacity for being used for the second axle section relative second and being grounded section being arranged between the second axle section and the second ground connection section gas
The coupled capacitor device of coupling.In other words, coupled capacitor device is with respect to the second axle section and electrically in parallel with respect to the second ground connection section.
Can particularly simply it provide in this way as follows, i.e. on the one hand the second axle section and the second ground connection section keep electric relative to each other
Edge and the another aspect of drawing last breath however may be such that hf interference current by the second axle section to second ground connection section diversion turn into can
Energy.This realizes that DC current is not transmitted by the electrical characteristic of capacitor as already mentioned above, but causes exchange
The transmission of electricity is possibly realized, wherein, the frequency of interference electric current is higher, and the transmission is more effective.Therefore, hf interference current passes through this
The coupled capacitor device of sample is by particularly good by the second axle section diversion into the second ground connection section.In the situation of coupled capacitor device
In be favourable as follows herein, i.e. the coupled capacitor device has higher electric capacity, because coupling efficiency
(Auskoppeleffektivit t) equally increases with the increased electric capacity of coupled capacitor device.Particularly by according to the present invention
Coupled capacitor device may be such that and be possibly realized as follows, i.e. the coupling output of interference electric current can without the second axle section with
It is provided in the situation of Mechanical Contact between second ground connection section.It is particularly based on the non-contact of proposed Capacitance Coupled output
Action principle, such as relative can provide being run without abrasion for no maintenance cost according to the sliding contact of prior art.Similarly,
The component proposed is resistive with respect to the pollution using liquid or foreign matter in its action principle in principle.In basis
In the longer life-span of the device of the present invention and the simultaneously situation of less ease for maintenance (Wartungsanf lligkeit)
Therefore especially good diversion can be provided by the possibility.First axle is electrically arranged in when row disturbs element and is similarly included
The capacity coupled coupled capacitor device for being used for first axle section relative first and being grounded section between section and the first ground connection section
When, herein without departing from according to the teachings of the present invention.Therefore, the advantages of all describe above, equally can be in the design form
Situation in be provided.
According to same the 3rd alternative or extra possibility, importantly can be set in addition for the present invention, i.e.
Row, which disturbs element, includes electric high-frequency conductors, and the electric high-frequency conductors are conductively arranged in the second ground connection section at least part section
Between the first ground connection section.Preferably, it is whole between the second ground connection section and the first ground connection section in this high-frequency conductors
Section on extension and be therefore individually these ground connection sections between being conductively connected.It is herein it is preferred to ensure that as follows,
That is, high-frequency conductors itself do not become radiating element in the situation of diversion interference electric current.It is conductively connected accordingly, for these
Identical earth potential is configured with for ground connection section.Here, high-frequency conductors are for Guiding high frequency electric current according to the present invention
Particularly good suitable conductor, such as pass through its material and/or its construction.In this manner, it is directed to the second ground connection section
In hf interference current can particularly good and effectively be transmitted in the first ground connection section.This is especially favourable as follows
, because the first ground connection section is the source that the earth potential of motor and motor are often hf interference current.Hf interference current
Especially good return lead and thus particularly effective balance can be therefore by the high frequency between the second and first ground connection section
Conductor provides.
Sum it up, by the way that the height in drivetrain can each be provided separately in possibility described above
Frequency interference electric current avoids.Here, the efficiency of single measure depends on the electrical characteristic of remaining drivetrain, especially for example posted herein
Raw impedance.The efficiency avoided can further improve by the combination of at least two in described possibility.
Therefore particularly preferably can be set as follows in a kind of situation of the apparatus according to the invention, i.e. the device has
There are at least one decoupling capacitors and at least one coupled capacitor device and at least one high-frequency conductors.It can provide in this way such as
Under, i.e. each it be used to avoid the high frequency in by the powered drivetrain of motor from doing in possibility listed above
Disturb electric current.Therefore all the advantages of having described above, can be obtained simultaneously.Therefore, can particularly good be pressed down by decoupling capacitors
Transmission of the hf interference current processed in drivetrain.Coupled capacitor device may be such that hf interference current by drivetrain to ground connection section
In and be thus possibly realized to particularly effective the coupling output and diversion in earth potential, wherein, high-frequency conductors and then can will
The interference electric current of coupled output particularly effectively and conduct without greater loss be back to motor and thus most of conduction to dry
Disturb the source of electric current.Therefore all combinations by the available possible measure of the apparatus according to the invention are to pass through motor
The especially good and effective of hf interference current in powered drivetrain is reduced.
In addition, it can be set as follows in a kind of situation of the apparatus according to the invention, i.e. decoupling capacitors, which have, to be less than
About 10nF, desirably less than about 1nF electric capacity.As having been carried out above, the efficiency of decoupling capacitors is bigger, its
Electric capacity is smaller.However, arbitrarily small electric capacity can not often provide completely only in the case of larger cost or even.From going out as follows
Hair, i.e. less than about 10nF, desirably less than about 1nF electric capacity situation in, for appearance interference electric current in car
The transmission for the hf interference current that may be implemented in for the frequency of most frequent generation in drivetrain it is most of fully
Prevent and therefore realize first axle section and electric decoupling of the second axle section on hf interference current.Therefore, these values
Preferably to be worth for the electric capacity of decoupling capacitors because its one side provide hf interference current according to the present invention
Reduction and on the other hand can also be manufactured in the situation without excessive cost.
In addition, a kind of apparatus according to the invention can be constructed as below, i.e. coupled capacitor device has more than about 10nF, excellent
Selection of land is more than about 20nF electric capacity.As having been carried out above, the efficiency of coupled capacitor device is bigger, and its electric capacity is bigger.Appoint
Anticipate big electric capacity but often not can be provided that completely only in the case of larger cost or even.It is proved as follows herein, i.e.
More than about 10nF, preferably more than about 20nF electric capacity situation in, for appearance interference electric current in vehicle
It can realize hf interference current by most in the second axle section to the second ground connection section for the frequency of most frequent generation
Count sufficient diversion and therefore can realize that hf interference current exports from the electric decoupling of the second axle section.Therefore, these values are
Preferable value for the electric capacity of coupled capacitor device because its one side provide hf interference current according to the present invention
Reduction and on the other hand can also be manufactured in the situation without excessive cost.
It is particularly preferred that it can be set in a kind of situation of the apparatus according to the invention, i.e. the electric capacity of decoupling capacitors
It is smaller compared to the electric capacity of coupled capacitor device, be especially up to its about 1/10th, preferably at most its about 20/
One.In a kind of design form of implementation of apparatus according to the invention, do not only exist decoupling capacitors wherein and deposit
In coupled capacitor device, these capacitors form especially complicated divider, are for example divided into interference electric current by the divider
Second axle section and the second ground connection section.By the especially dual use of capacitor (i.e. coupled capacitor device and decoupling capacitors),
It may be such that and be possibly realized as follows herein, i.e. especially when the impedance for the measure taken exists in drivetrain relative to remaining
Impedance when accounting for leading, then the divider has the feature for being at least substantially not dependent on frequency.Be as follows herein it is favourable, especially
The HFS of its interference electric current is exported and is fed into the second ground connection section by drivetrain by the divider.This is according to this hair
It is bright to may be accomplished by, i.e. the electric capacity of decoupling capacitors compared to coupled capacitor device is smaller, be especially up to its about ten
/ mono-, preferably at most its about 1/20th.Thus, for example the electric capacity in coupled capacitor device compares decoupling capacitors
Can be by the voltage potential of the interference electric current in drivetrain defeated by the coupling of coupled capacitor device in big double situation
Declined after going out with the factor for being, for example, three.In the electric capacity of the coupled capacitor device situation twenty times greater compared to decoupling capacitors,
The factor can be risen in about 21 value.On the whole, therefore especially good and effective export and therefore can be provided
The reduction of hf interference current in drivetrain is provided.
In addition, a kind of apparatus according to the invention can be constructed as below, i.e. decoupling capacitors pass through first axle section or second
At least one nonconducting coating in the end that the participation machinery of axle section effectively connects is formed.As described above
Like that, most of axle section by metal material and especially electrically conductive constructs.It is may be such that by mechanical effectively connection in axle section
Between the transmission of torque be possibly realized.Therefore, the most of form from one another in end that the participation machinery of axle section effectively connects are matched somebody with somebody
Ground arrangement is closed, such as in grafting teeth portion.By the form fit, axle segments contact, so as to it is identically constructed have axle section it
Between electrically conductive property.At least one nonconducting coating in the end effectively connected by participating in machinery, electric charge is by first
It can be prevented to the second axle section or the opposite direct conduction.Can particularly preferably it be set as follows for this, i.e. nonconducting
Coating covers the whole section of the end of corresponding axle section.Except the direct electric insulation of two axle sections relative to each other, pass through
Two of nonconducting coating and axle section participate in being configured with capacitor together with the end that machinery effectively connects, the capacitor with
Two axle sections are connected and are therefore the decoupling capacitors in meaning of the present invention.For providing the extra of decoupling capacitors
Therefore structural detail can be avoided by.A kind of apparatus according to the invention therefore can be in this way particularly simply and especially compact
Ground is built.In addition, it can equally be prevented by nonconducting coating or at least substantially limit first axle section or the second axle section (its
Often formed as implemented above by metal material) the corrosion of end that effectively connects of participation machinery.
Preferably, can be set to according to the further development of the apparatus according to the invention, i.e. first axle section or the second axle
The end that at least one participation machinery of section effectively connects is in order to form nonconducting coating by phosphatization.In such phosphatization
In situation, formed on the surface through processing for participating in the end that machinery effectively connects and be made up of the metal phosphate of secure adhesion
Conversion layer (Konversionsschicht).Here, the conversion layer is preferably directly formed in the material of axle section, from
And the application of the additional materials for forming coating can be avoided.The manufacture of drivetrain equipped with the apparatus according to the invention can be by
This is simplified.Similarly, such phosphatization surface is equally especially wear-resisting in addition to its electrical insulative property.Thus can carry
For as follows, i.e. it is special that the coating with plastic material is especially compared in the machinery formed by two ends of axle section effectively connection
Other easy care and durable.
In addition, a kind of apparatus according to the invention can be constructed as below, i.e. coupled capacitor device passes through with least one disk
The variable condenser of (Scheibenpaar) is formed, wherein, the first disk of disk pair electrically and mechanically with the second axle
Section is connected and the second disk of disk pair is electrically and mechanically connected with the second ground connection section.By correspondingly same
The arrangement of two disks of conductive disk pair itself, there is provided a kind of capacitance characteristic, thus according to the coupling of the device of the present invention
Conjunction capacitor can be extremely simple and compactly constructed.Here, the electric capacity of such variable condenser is existed by the disk of disk pair
Overlapping face and determined thereon by its mutual spacing.By the presence of multiple disks pair, can particularly simply carry in addition
For the increase of the electric capacity of variable condenser formed.Especially compare includes sliding contact and/or biography by known in the art
The solution for the supporting arrangement led, high frequency can be provided by the coupled capacitor device for being configured to variable condenser according to the present invention
Interference electric current is by contactless in drivetrain to ground connection section and thus deflecting from without abrasion or exports.Similarly with this
Mode may be such that the raising in the life-span of the drivetrain equipped with the apparatus according to the invention and the reduction of ease for maintenance are possibly realized.
In addition, it can be set in a kind of situation of the apparatus according to the invention, i.e. electric high-frequency conductors have high frequency conjunction
Strand (HF-Litze), especially it is configured to high frequency twine.By high-frequency conductors, section is grounded according to the present invention first and second
It is conductively connected each other.Thus continuous common earth potential can be provided.Preferably, ground connection section may be configured to equip herein
The housing or casing member of each element of the drivetrain of with good grounds device of the invention.High frequency in meaning of the present invention
Conductor herein especially particularly suitable for high frequency electric conduction conductor.High frequency twine is formed by multiple single stocks,
These stocks correspondingly electric insulation and electrically in parallel each other relative to each other.In addition, these single are used to form high frequency twine
Stock it is most of so wrapped around one another, that is, to occupy in the total of high frequency twine in the middle each single identical frequency of stock
Position as each as possible in cross section.Unfavorable effect (such as solid can be led single for the conduction of high frequency electric
The so-called skin effect (Skin-Effekt) occurred in the situation of line) it can thus be avoided by or at least be significantly attenuated.Pass through
Therefore high frequency twine can particularly simply provide the high-frequency conductors according to the present invention.
According to the second aspect of the invention, the task carries motor and at least through the powered driving of motor by one kind
The vehicle of system solves, and it has the device for being used for reducing the hf interference current in the drivetrain of vehicle.According to the present invention
Vehicle be characterised by, be configured with device according to the first aspect of the invention.
Correspondingly, vehicle according to the invention brings the advantages of identical, as it is in detail with reference to according to the present invention
As the apparatus according to the invention of first aspect is explained.
Brief description of the drawings
Additional advantage, feature and the details of the present invention is drawn by following description, is explained in detail with reference to the accompanying drawings wherein
Embodiments of the invention.Here, in the claims and in the description mentioned feature can correspondingly itself individually or
It is important for the present invention in any combination.Element with identical function and action principle is set in various figures
There is identical reference.Wherein：
Fig. 1 schematically shows the drivetrain according to prior art,
Fig. 2 schematically shows the simplified replacement diagram of drivetrain,
Fig. 3 schematically shows the drivetrain with the apparatus according to the invention,
Fig. 4 schematically shows the axle section of drivetrain
Fig. 5 schematically shows the first frequency characteristic in the situation using the apparatus according to the invention,
Fig. 6 schematically shows the second frequency feature in the situation using the apparatus according to the invention, and
Fig. 7 schematically shows vehicle according to the invention.
Reference numerals list
1 device
2 vehicles
10 drivetrains
11 first axle sections
12 ends
13 second axle sections
14 ends
15 second ground connection sections
20 motors
21 first ground connection sections
30 obstruct element
31 decoupling capacitors
32 coating
40 rows disturb element
41 coupled capacitor devices
42 variable condensers
43 disks pair
44 first disks
45 second disks
46 high-frequency conductors
50 batteries
51 power electric devices
52 internal combustion engines
53 clutches
54 transmission mechanisms
55 differential mechanisms
56 supporting arrangements
57 driving wheels
58 wheel suspensions
60 direct current conductors
61 phase conductors
70 earth potentials
80 amplitude responses (without the apparatus according to the invention)
81 amplitude responses (carry the apparatus according to the invention)
90 phase characteristics (without the apparatus according to the invention)
91 phase characteristics (carry the apparatus according to the invention)
100 interference electric currents
101 electrical potential differences (before the apparatus according to the invention)
102 electrical potential differences (after the apparatus according to the invention)
103 radiation.
Embodiment
Fig. 1 shows the drivetrain 10 driven by least one motor 20 of vehicle 2, motor vehicle driven by mixed power herein, such as it
According to as known in the art.Here, drivetrain 10 can have many different elements, such as clutch as depicted
Device 53, transmission mechanism 54 and/or differential mechanism 55 and for mechanical energy to be transported at the driving wheel 57 of vehicle 2, the driving wheel 57
Such as it is arranged in by wheel suspension 58 at vehicle 2.Supporting arrangement 56 ensure that especially low friction of the drivetrain 10 in vehicle 2
Supporting.It is configured to motor vehicle driven by mixed power here, the drivetrain 10 described is used in and equally has in addition to motor 20
Have in the vehicle 2 of internal combustion engine 52.Here, motor 20 can be used as motor or is alternatively run as generator.For
There is provided as the electric energy required for for the operation of motor 20 by battery 50, the battery 50 is preferably configured to direct current height
Piezoelectric battery.Via direct current conductor 60, electric energy is conducted to power electric device 51 as DC current, in the power electric device
Alternating current is converted into 51 and is and then fed to motor 20 via phase conductor 61.In this turn of DC current to alternating current
The generation of hf interference current 100, the high frequency in the situation changed and especially can be equally produced in the situation of the operation of motor 20
Interference electric current 100 is shown as the arrow of arc in Fig. 1.Via drivetrain 10 and its element, these interference electric currents 100 such as institute
It can be propagated as description on whole vehicle 2 and for example cause interference in the electrical system of vehicle 2.Here, interference electricity
Thus stream 100 can for example be produced in radio reception, for example installed to the 103 equally possible appearance of radiation at surrounding environment
The interference in radio in vehicle 2.
The simplified replacement diagram of drivetrain 10 is shown in fig. 2.It schematically depict herein as follows, i.e. drive
It is dynamic be 10 arrangements be supplied with the one hand by phase conductor 61 between the motor 20 of electric energy and another aspect wheel suspension 58 and
The electrical connection of these structural details is equally provided in addition to mechanical connection.This passes through electrical equipment or impedance in fig. 2
X_i is shown.Impedance X_i especially transmits the element of torque herein, can for example be configured to axle section 11,12 herein, be configured to
Clutch 53, the meshing gear (Zahnradpaarung) for being configured to transmission mechanism 54 or differential mechanism 55, it is configured to grafting teeth portion
Or the element being configured like.Therefore, these impedances X_i influences interference electric current 100 (not described together) along drivetrain 10
Propagation.In addition impedance Y_i is depicted, it is the rotating member and retaining element (especially ground connection section 15,21 in drivetrain 10
Or housing) between electrical connection.These connections can be for example supporting arrangement 56 (not described together), potted component, cold
But device or the like.Therefore, impedance Y_i influence interference electric current 100 by drivetrain 10 to be grounded section 15,21 on export or
Person's diversion.In addition, electric connecting element or connection impedance Z _ i are described together in addition, pass through the difference member of its drivetrain 10
The housing or ground connection section 15,21 of part connect by each other in an electrically conductive, wherein, the ground connection section 21 of motor 20 is especially equally by one
Rise and link.These impedance Z _ i can for example be configured in vehicle 2 and with the screw engagement (Verschraubung) of vehicle 2, structure
Cause to balance conductor, be configured to shielding or the like and thus be accordingly used in that the conduction of interference electric current 100 is returned into its source (most of its
It is power electric device 51).
Here, the apparatus according to the invention 1 can in all three impedances X_i, Y_i and Z_i situation individually, it is excellent
Selection of land promotes to improve in all three opening positions in combination.Thus, for example impedance X_2 is configured to obstruct element 30, especially herein
It is configured to decoupling capacitors 31.Thus, especially may be used in the situation of the decoupling capacitors 31 with the electric capacity less than 10nF
Avoid or at least substantially suppress the propagation of the hf interference current 100 especially in drivetrain 10.In addition, impedance Y_3 is configured to
Row disturbs element 40, is especially configured to coupled capacitor device 41.Thus, especially in the coupled capacitor device 41 with more than 10nF electric capacity
Especially hf interference current 100 can be provided in situation by the especially good and effective export in drivetrain 10 to ground connection section 15
Or diversion.As the 3rd measure, the apparatus according to the invention 1 disturbs element 40 and can have high frequency as extra or alternative row
Conductor 46, the high-frequency conductors 46 form impedance Z _ 2 in the design described.High frequency is for example preferably configured to by this
The high-frequency conductors 46 of twine can provide hf interference current 100 to (most of is the source of interference electric current 100) motor 20
Especially good return of power electric device (not described together) draw.On the whole, therefore pass through according to dress of the invention
Put 1, by the combinations each, particularly by all measures in these measures, it is possible to provide the interference electric current in drivetrain 10
100 especially good and effective reduction.
Fig. 3 shows the possible scheme of machine design for the apparatus according to the invention 1 being used in drivetrain 10.Drive
Dynamic is 10 to be mounted pivotably by supporting arrangement 56.Hf interference current 100 exists in drivetrain 10 and without in addition
Especially promoted between drivetrain 10 and the such as second ground connection section 15 by the apparatus according to the invention 1 in the situation of operation
Electrical potential difference 101.In described design form, the apparatus according to the invention 1, which especially has, obstructs element 30 and two
Row disturbs element 40.Here, obstructing element 30 is configured to decoupling capacitors 31, it is arranged in the axle area of drivetrain 10 with being electrically coupled
At the end 12,14 that the participation machinery of section 11,13 effectively connects.This for example can effectively connect in the machinery formed by grafting teeth portion
There is provided in the situation connect by the non-conductive coating 32 of one in two ends 12,14.First row disturb element 40, electrically simultaneously
The coupled capacitor device 41 between the second axle section 13 and the second ground connection section 15 is arranged in the design shape described connection
Variable condenser 42 is configured in formula, it especially keeps constant electric capacity in the situation of rotational motion.Here, variable condenser
42 have three disks to 43 in the design shown, wherein correspondingly the first disk 44 and the second axle section 13 and second
Disk 45 is connected mechanically and conductively with the second ground connection section 15.By such use of multiple disks to 43, herein
Variable condenser 42 and the thus electric capacity of coupled capacitor device 41 can particularly simply be increased.It is particularly preferred that can so it select herein
Select electric capacity, that is, cause the electric capacity of coupled capacitor device 42 to be more than, be especially apparent be more than, such as 20 times of ground are more than decoupling capacitors 31
Electric capacity.Thus, decoupling capacitors 31 and coupled capacitor device 41 form the divider of complexity, and the divider is particularly suitable for inciting somebody to action
Hf interference current 100 exports from drivetrain 10.In above-mentioned example, (20 times of ground of the electric capacity of coupled capacitor device 41 are big wherein
In the electric capacity of decoupling capacitors 31) situation in can be achieved it is as follows, i.e. after coupled capacitor device 41 in drivetrain 10 and the
Electrical potential difference 102 between two ground connection sections 15 is only also less than 5 percent of the electrical potential difference 101 before coupled capacitor device 41.
It is high-frequency conductors 46 that shown another row, which disturbs element 40, in figure 3, and it is conductively arranged in the second ground connection at drivetrain 10
Between first ground connection section 21 of the power electric device 51 of section 15 and motor 20.Here, high-frequency conductors 46 are the present invention's
Conductor of the conduction with high-frequency electric current, such as high frequency twine are especially particularly well suited for use in meaning.Pass through
Using high-frequency conductors 46, the hf interference current 100 being exported at this in the second ground connection section 15 is led back to using special
High efficiency provides.Common earth potential 70 can be constructed particularly simply in this way.On the whole, therefore basis is passed through
The device 1 of the present invention, especially obstructing element 30 or during row disturbs the situation of element 40 using all possible, it is possible to provide in car
The 2 especially good reduction at least through the hf interference current 100 in the powered drivetrain 10 of motor 20.
The possible machinery effectively connection between two axle sections 11,13 of drivetrain 10 is shown in Fig. 4, its
In, the decoupling capacitors 31 as the apparatus according to the invention 1 for obstructing element 30 are disposed between axle section 11,13.
This, draw above picture shows side view, and following image shows the section view along lines A-A.Two axle sections 11,
13 end 12,14 passes through the effectively connection of the ground mechanically to each other of the grafting teeth portion for transmitting torque.Especially, first axle section 11
End 12 has nonconducting coating 32.Here, the preferably such as phosphorus of the end 12 including first axle section 11 of coating 32
Change.Here, phosphatization has the following advantages that, i.e. the nonconducting and coating 32 that thus insulate is in the material of of first axle section 11 itself
It is formed in material, thus can avoids the element of extra electric insulation.It is therefore special with together with the end 14 of the second axle section 13
Decoupling capacitors 31 are configured with simply and effectively, the decoupling capacitors 31 are used as obstruct element as described above
30 work.
Fig. 5 and 6 correspondingly shows measured in the drivetrain 10 with and without the apparatus according to the invention 1
Frequency curve.Here, correspondingly showing amplitude response 80,81 in the image in left side, phase is shown in the image on right side
Position characteristic 90,91.
Fig. 5 is acquired in drivetrain 10, wherein the apparatus according to the invention 1 (not described together) by the use of be used as resistance
The decoupling capacitors 31 for disturbing element 30 (not described together) are installed.Comparing without 80 with carrying 81 dresses according to the present invention
Put following clearly visible in the situation of the amplitude response 80,81 of 1 interference electric current 100 used, i.e. for lower frequency
The reduction that amplitude weakens can be achieved, and amplitude does not rise in high-frequency situation simultaneously.Similarly, compare without 90 with
In the situation of the phase characteristic 90,91 of the apparatus according to the invention 1 with 91 installations visibly, thus phase shift is subtracted
It is few.On the whole, therefore can be reduced in this way by using the decoupling capacitors 30 of the apparatus according to the invention 1 in drivetrain
The resonance point (Resonanzstelle) of Capacitance Coupled and hf interference current 100 in 10 can be attenuated.
Fig. 6 is acquired in drivetrain 10, and the apparatus according to the invention 1 (not described together) utilizes the row of conduct wherein
The high-frequency conductors 46 for disturbing element 40 (not described together) are installed.Comparing without 80 with carrying 81 apparatus according to the invention
It is following clearly visible in the situation of the amplitude response 80,81 of 1 interference electric current 100 used, i.e. particularly with upper frequency
The increase that amplitude weakens can be achieved in speech.Similarly, comparing without 90 and the apparatus according to the invention 1 with 91 installations
In the situation of phase characteristic 90,91 visibly, thus phase shift is at least delayed by.On the whole, therefore pass through in this way
The high-frequency conductors 46 of element 40 are disturbed using the row as the apparatus according to the invention 1 can improve hf interference current 100 to its source
Head, most of draw and thus similarly for can be true for hf interference current 100 for returning for motor 20 (not described together)
Protect low-resistance time footpath of leading the way (R ü ckf ü hrungspfad).
The vehicle according to the invention 2 with motor 20 is depicted in the figure 7, and it has the dress being equipped with according to the present invention
Put 1 drivetrain 10.It can be provided herein by the apparatus according to the invention 1 as follows, i.e. hf interference current 100 is not (by together
Describe) it can be reduced simply and particularly effectively in drivetrain 10.Pass through the unfavorable of such hf interference current 100
Effect, for example, the electric component of vehicle 2 interference and/or similarly hf interference current 100 into the surrounding environment of vehicle 2
Thus 103 (not described together) of radiation can be avoided by.
Claims (10)
1. one kind is used to reduce in vehicle (2) at least through the High-frequency Interference electricity in motor (20) powered drivetrain (10)
Flow the device (1) of (100), described device (1), which has, at least one obstructs element (30) and/or at least one row disturbs element
(40), the drivetrain (10) includes at least one first axle section (11) and the second axle section (13), wherein, the first axle
The end (12) of section (11) is mechanically effectively connected with the end (14) of the second axle section (13) in order to transmit torque,
The motor (20) includes at least one first ground connection section (21) in addition, and the first ground connection section (21) forms the motor
(20) earth potential (70), and the drivetrain (10) includes the second ground connection section (15) in addition, the second ground connection section (15)
The earth potential (70) of the drivetrain (10) is formed,
Characterized in that,
The use for obstructing element (30) and including being electrically coupled with the first axle section (11) and the second axle section (13)
In the first axle section (11) and the decoupling capacitors (31) of the capacitor-decoupling of the second axle section (13), and/or
The row, which disturbs element (40), to be included electrically being arranged in the second axle section (13) and the described second ground connection section (15)
Between be used for the second axle section (13) relatively it is described second ground connection section (15) capacity coupled coupled capacitor device
(41), and/or
The row, which disturbs element (40), includes electric high-frequency conductors (46), the electric high-frequency conductors (46) conductively at least part section
Ground is arranged between the second ground connection section and the first ground connection section (21).
2. device (1) according to claim 1, it is characterised in that described device (1) has at least one decoupling capacitors
And at least one coupled capacitor device (41) and at least one high-frequency conductors (46) (31).
3. device (1) according to claim 1 or 2, it is characterised in that the decoupling capacitors (31), which have, to be less than about
10nF, desirably less than about 1nF electric capacity.
4. device (1) according to any one of the preceding claims, it is characterised in that the coupled capacitor device (41) has
More than about 10nF, preferably more than about 20nF electric capacity.
5. device (1) according to any one of the preceding claims, it is characterised in that the electricity of the decoupling capacitors (31)
Hold it is smaller compared to the electric capacity of the coupled capacitor device (41), be especially up to its about 1/10th, preferably at most its is big
About 1/20th.
6. device (1) according to any one of the preceding claims, it is characterised in that the decoupling capacitors (31) pass through
The end that at least one participation machinery of the first axle section (11) or the second axle section (13) effectively connects
(12,14) nonconducting coating (32) formation.
7. device (1) according to claim 6, it is characterised in that the first axle section (11) or the second axle area
The end (12,14) that effectively connects of at least one participation machinery of section (13) is in order to form nonconducting coating (32)
By phosphatization.
8. device (1) according to any one of the preceding claims, it is characterised in that the coupled capacitor device (41) passes through
Variable condenser (42) formation with least one disk to (43), wherein, first disk (44) of the disk to (43)
Electrically and mechanically be connected with the second axle section (13) and the disk to second disk (45) of (43) electrically
And mechanically it is connected with the described second ground connection section (15).
9. device (1) according to any one of the preceding claims, it is characterised in that electrically high-frequency conductors (46) tool
There is high frequency twine, be especially configured to high frequency twine.
10. one kind carries motor (20) and the vehicle (2) at least through the motor (20) powered drivetrain (10), it has
There is the device (1) for reducing the hf interference current in the drivetrain (10) of the vehicle (2), it is characterised in that described
Device (1) constructs according to any one of preceding claims.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016116069.5 | 2016-08-29 | ||
| DE102016116069.5A DE102016116069A1 (en) | 2016-08-29 | 2016-08-29 | Device for reducing high-frequency interference currents and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107800246A true CN107800246A (en) | 2018-03-13 |
| CN107800246B CN107800246B (en) | 2019-08-20 |
Family
ID=61166258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710749607.3A Active CN107800246B (en) | 2016-08-29 | 2017-08-28 | For reducing the device and vehicle of hf interference current |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107800246B (en) |
| DE (1) | DE102016116069A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112005473A (en) * | 2018-04-19 | 2020-11-27 | 采埃孚股份公司 | Electric machine and drive train decoupling in a vehicle |
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| US9071090B2 (en) | 2011-04-27 | 2015-06-30 | Panasonic Intellectual Property Management Co., Ltd. | Motor and electric device including the same |
| DE102015100847A1 (en) | 2014-01-21 | 2015-07-23 | Avl Software And Functions Gmbh | Electric machine with reduced electromagnetic interference distribution |
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| CN1739233A (en) * | 2003-01-15 | 2006-02-22 | 西门子公司 | Method for reducing common-mode interference currents in an electric drive system, and corresponding electric drive system |
| CN1531158A (en) * | 2003-02-07 | 2004-09-22 | SKF�ɷݹ�˾ | Device for preventing bearing of electric machine from damage by harmful electric current |
| CN101678741A (en) * | 2007-04-05 | 2010-03-24 | 霍富电子有限公司 | Device for operating an electrical user on a motor vehicle |
| CN102574535A (en) * | 2009-09-29 | 2012-07-11 | 西门子公司 | Rail vehicle |
| CN102859845A (en) * | 2011-04-27 | 2013-01-02 | 松下电器产业株式会社 | Electric motor and electric device provided with same |
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| CN112005473A (en) * | 2018-04-19 | 2020-11-27 | 采埃孚股份公司 | Electric machine and drive train decoupling in a vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102016116069A1 (en) | 2018-03-01 |
| CN107800246B (en) | 2019-08-20 |
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