CN110120723A - A kind of new-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element - Google Patents
A kind of new-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element Download PDFInfo
- Publication number
- CN110120723A CN110120723A CN201910362734.7A CN201910362734A CN110120723A CN 110120723 A CN110120723 A CN 110120723A CN 201910362734 A CN201910362734 A CN 201910362734A CN 110120723 A CN110120723 A CN 110120723A
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- Prior art keywords
- terminal pad
- connecting shaft
- drive system
- axial direction
- new
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- Pending
Links
- 238000012360 testing method Methods 0.000 claims abstract description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 37
- 238000005096 rolling process Methods 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 12
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
-
- 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
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The present invention provides a kind of new-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation elements, including preceding connecting shaft and rear connecting shaft, one end of the preceding connecting shaft is for connecting motor shaft, the other end is equipped with terminal pad one, one end of the connecting shaft is used for connecting test equipment after described, and the other end is equipped with terminal pad two；Corresponding bolt hole is equipped between the terminal pad one and terminal pad two, it is connected between the terminal pad one and terminal pad two by fixing bolt, the fixing bolt is correspondingly provided with insulating sheath, and the insulating sheath is located on the outside of fixing bolt, and sets only in bolt hole；Felt pad is equipped between the terminal pad one and terminal pad two, for terminal pad one and terminal pad two to be isolated.New-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element of the present invention can more safely eliminate the electromagnetic disturbance axially generated by motor in the case where guaranteeing motor stabilizing operation.
Description
Technical field
The invention belongs to electric vehicle engineering fields, axial more particularly, to a kind of new-energy automobile power drive system motor
Electromagnetic disturbance cancellation element.
Background technique
Electric drive dynamical system is the core electrical system of electric car, due to including high-power electric and electronic in the system
Device, therefore be also that source is harassed in main electromagnetic radiation, it frequently results in vehicle electromagnetic compatibility test and is wanted more than national legislation limit value
It asks.
Currently, in new-energy automobile power drive system EMC test, mainly for by conducting wire or controller
The electromagnetic disturbance that ontology is launched, but find during the test, motor shaft is also important harassing and wrecking source.Main reason is that
There are high frequency common mode voltage in PWM driving motor system, high frequency common mode voltage can induce on higher axis on machine shaft
Interference voltage (shaft voltage) and by earth-return formed interference electric current (shaft current), this interference electric current pass through inverter-electricity
Cable-motor parasitic capacitance-motor shaft/motor ground wire-system ground wire-main power source-rectifier-inverter approach carries out
It propagates.But in the test of vehicle grade, in similar frequency bands, there is no compared with strong signal.So carrying out component-level test in power drive system
When, it is badly in need of a kind of device to solve the problems, such as the electromagnetic disturbance of motor axial direction.
Summary of the invention
In view of this, the present invention is directed to propose a kind of new-energy automobile power drive system motor axial direction electromagnetic disturbance eliminates dress
It sets, there are electromagnetic disturbances to eliminate on the motor shaft to solve the problem of existing new-energy automobile.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of new-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element, including preceding connecting shaft and rear connection
Axis, one end of the preceding connecting shaft are equipped with terminal pad one for connecting motor shaft, the other end, and the rear one end of the connecting shaft is for connecting
Test equipment is connect, the other end is equipped with terminal pad two；
The terminal pad one is fixedly connected or is integrally formed with preceding connecting shaft, and the terminal pad two is fixed with rear connecting shaft
Connection is integrally formed；
Corresponding bolt hole is equipped between the terminal pad one and terminal pad two, between the terminal pad one and terminal pad two
It being connected by fixing bolt, the fixing bolt is correspondingly provided with insulating sheath, and the insulating sheath is located on the outside of fixing bolt, and
If only in bolt hole；
Felt pad is equipped between the terminal pad one and terminal pad two, for terminal pad one and terminal pad two to be isolated.
Further, one end of the preceding connecting shaft and motor axis connection, inside are equipped with internal spline, pass through internal spline and electricity
Arbor cooperates grafting.
Further, connection pedestal is additionally provided in the preceding connecting shaft, the connection pedestal is cylindrical type, connects pedestal
Axis hole is equipped at axis, the diameter of axis hole is greater than the outer diameter of preceding connecting shaft, and the connection pedestal is set in preceding connection by axis hole
The one end in the outside of axis, the connection pedestal is equipped with bearing groove, and for placing rolling bearing, the rolling bearing connects before being set in
On the outside of spindle, the preceding connecting shaft is equipped with limit circlip corresponding with rolling bearing, and the limit circlip is two, setting
In the two sides of rolling bearing, for limiting the axial movement of rolling bearing.
Further, end cap is additionally provided on the connection pedestal, the rolling bearing is blocked in bearing groove by end cap,
The end cap is bolted with pedestal is connect.
Further, the end cap is equipped with carbon brush holder, is equipped with carbon brush in the carbon brush holder.
Further, the connection pedestal extends to form fixed part, the connection far from one end of rolling bearing outward
Pedestal is fixed on fixed frame by fixed part.
Further, the fixed frame includes vertical steel plate and fixed plate, and the vertical steel plate is bilayer, the double-deck vertical steel
The top integrally connected of plate, the bottom of vertical steel plate are welded and fixed with horizontally disposed fixed plate, and the vertical steel plate side is used
In fixed to measured motor, the other side is used for fixed connecting base.
Compared with the existing technology, new-energy automobile power drive system motor axial direction electromagnetic disturbance of the present invention eliminates dress
It sets and has the advantage that
New-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element of the present invention can guarantee electricity
In the case where machine stable operation, the electromagnetic disturbance axially generated by motor is more safely eliminated；Real vehicle ring can be more nearly
The Electro Magnetic Compatibility of controller is more really measured in border.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is that new-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element described in the embodiment of the present invention is whole
Body structure chart；
Fig. 2 is that new-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element described in the embodiment of the present invention cuts open
Face figure；
Fig. 3 is the principle assumption diagram of the embodiment of the present invention one.
Description of symbols:
1, preceding connecting shaft；11, internal spline；12, terminal pad one；2, pedestal is connected；3, rolling bearing；4, circlip is limited；5,
Carbon brush；6, carbon brush holder；7, insulating sheath；8, felt pad；9, fixing bolt；10, rear connecting shaft；101, terminal pad two；13, fixed
Frame.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Fig.1 and Fig.2, a kind of new-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element, including it is preceding
Connecting shaft 1 and rear connecting shaft 10, one end of the preceding connecting shaft 1 are equipped with terminal pad 1, institute for connecting motor shaft, the other end
Rear 10 one end of connecting shaft is stated for connecting test equipment, the other end is equipped with terminal pad 2 101；
The terminal pad 1 is fixedly connected or is integrally formed with preceding connecting shaft 1, and the terminal pad 2 101 is connect with after
Axis 10 is fixedly connected or is integrally formed；
Between the terminal pad 1 and terminal pad 2 101 be equipped with corresponding bolt hole, the terminal pad 1 with connect
It is connected between disk 2 101 by fixing bolt 9, the fixing bolt 9 is correspondingly provided with insulating sheath 7, and the insulating sheath 7 is located at
9 outside of fixing bolt, and set only in bolt hole；
Felt pad 8 is equipped between the terminal pad 1 and terminal pad 2 101, for terminal pad 1 and terminal pad to be isolated
2 101.
One end of the preceding connecting shaft 1 and motor axis connection, inside are equipped with internal spline, are cooperated by internal spline and motor shaft
Grafting, preceding connecting shaft 1 can quickly realize the connection with motor shaft by internal spline 11.
Connection pedestal 2 is additionally provided in the preceding connecting shaft 1, the connection pedestal 2 is cylindrical type, connects the axis of pedestal 2
Place is equipped with axis hole, and the diameter of axis hole is greater than the outer diameter of preceding connecting shaft 1, connecting shaft 1 before the connection pedestal 2 is set in by axis hole
Outside, it is described connection pedestal 2 one end be equipped with bearing groove, for placing rolling bearing 3, before the rolling bearing 3 is set in
1 outside of connecting shaft, the preceding connecting shaft 1 are equipped with limit circlip 4 corresponding with rolling bearing 3, and the limit circlip 4 is two
It is a, the two sides of rolling bearing 3 are set, for limiting the axial movement of rolling bearing 3.
End cap is additionally provided on the connection pedestal 2, the rolling bearing 3 blocks the end in bearing groove by end cap
Lid with connect pedestal 2 and be bolted.The end cap is equipped with carbon brush holder 6, is equipped with carbon brush 5, carbon brush 5 in the carbon brush holder 6
For eliminating the electromagnetic disturbance on motor shaft.
The connection pedestal 2 extends to form fixed part far from one end of rolling bearing 3 outward, and the connection pedestal 2 is logical
Fixed part is crossed to be fixed on fixed frame 13.
Embodiment one:
Mounting disc to measured motor is bolted on fixed frame 13, as shown in figure 3, fixed frame 13 can be bottom
The vertical steel plate of bilayer being fixed, vertical steel plate are equipped with through-hole corresponding with motor shaft, and the other side of vertical steel plate is installed
Cancellation element cooperates grafting by internal spline 11 to the motor shaft of measured motor and preceding connecting shaft 1, and connection pedestal 2 is solid by bolt
It is scheduled on vertical steel plate, the rear connecting shaft 10 of cancellation element is fixedly connected by shaft coupling with the shaft of dynamometer machine, and measurement of power is passed through
Machine can treat measured motor and be tested, and eliminate the electromagnetic disturbance on motor shaft by cancellation element, measurement result is more quasi-
Really.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of new-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element, it is characterised in that: including preceding connection
Axis (1) and rear connecting shaft (10), one end of the preceding connecting shaft (1) are equipped with terminal pad one for connecting motor shaft, the other end
(12), described rear connecting shaft (10) one end is used for connecting test equipment, and the other end is equipped with terminal pad two (101)；
The terminal pad one (12) is fixedly connected or is integrally formed with preceding connecting shaft (1), and the terminal pad two (101) connects with after
Spindle (10) is fixedly connected or is integrally formed；
Corresponding bolt hole, the terminal pad one (12) and company are equipped between the terminal pad one (12) and terminal pad two (101)
It connects and is connected between disk two (101) by fixing bolt (9), the fixing bolt (9) is correspondingly provided with insulating sheath (7), described exhausted
Edge sheath (7) is located on the outside of fixing bolt (9), and is set only in bolt hole；
Felt pad (8) are equipped between the terminal pad one (12) and terminal pad two (101), for terminal pad one (12) to be isolated and connects
Connect disk two (101).
2. new-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element according to claim 1, feature
Be: one end of preceding connecting shaft (1) and motor axis connection, inside are equipped with internal spline, are cooperated by internal spline and motor shaft
Grafting.
3. new-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element according to claim 1, feature
It is: is additionally provided with connection pedestal (2) on the preceding connecting shaft (1), the connection pedestal (2) is cylindrical type, connection pedestal (2)
Axis hole is equipped at axis, the diameter of axis hole is greater than the outer diameter of preceding connecting shaft (1), and the connection pedestal (2) is set in by axis hole
The one end in the outside of preceding connecting shaft (1), connection pedestal (2) is equipped with bearing groove, for placing rolling bearing (3), described turn
Dynamic bearing (3) is set on the outside of preceding connecting shaft (1), and the preceding connecting shaft (1) is equipped with limit corresponding with rolling bearing (3)
Circlip (4), the limit circlip (4) are two, are arranged in the two sides of rolling bearing (3), for limiting the axis of rolling bearing (3)
To movement.
4. new-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element according to claim 3, feature
It is: is additionally provided with end cap on the connection pedestal (2), the rolling bearing (3) blocks the end in bearing groove by end cap
Lid with connect pedestal (2) and be bolted.
5. new-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element according to claim 4, feature
Be: the end cap is equipped with carbon brush holder (6), is equipped with carbon brush (5) in the carbon brush holder (6).
6. new-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element according to claim 3, feature
Be: connection pedestal (2) extends to form fixed part, the connection pedestal (2) far from the one end of rolling bearing (3) outward
It is fixed on fixed frame (13) by fixed part.
7. new-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element according to claim 6, feature
Be: the fixed frame (13) includes vertical steel plate and fixed plate, and the vertical steel plate is bilayer, the top of the double-deck vertical steel plate
Integrally connected, the bottom of vertical steel plate are welded and fixed with horizontally disposed fixed plate, the vertical steel plate side for it is fixed to
Measured motor, the other side are used for fixed connecting base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910362734.7A CN110120723A (en) | 2019-04-30 | 2019-04-30 | A kind of new-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910362734.7A CN110120723A (en) | 2019-04-30 | 2019-04-30 | A kind of new-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110120723A true CN110120723A (en) | 2019-08-13 |
Family
ID=67520368
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910362734.7A Pending CN110120723A (en) | 2019-04-30 | 2019-04-30 | A kind of new-energy automobile power drive system motor axial direction electromagnetic disturbance cancellation element |
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| CN (1) | CN110120723A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030592A (en) * | 2021-02-25 | 2021-06-25 | 中车青岛四方机车车辆股份有限公司 | Method, system and device for analyzing external radiation of motor train unit |
| CN114123663A (en) * | 2021-12-09 | 2022-03-01 | 江苏中工高端装备研究院有限公司 | Current isolating device and method for permanent magnet synchronous semi-direct-drive variable frequency speed regulation motor shaft |
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| US5914547A (en) * | 1997-11-21 | 1999-06-22 | Magnetek, Inc. | Auxiliary bearing assembly for reduction of unwanted shaft voltages in an electric motor |
| US20050285464A1 (en) * | 2004-06-28 | 2005-12-29 | Orders Marcus D | Method and apparatus for dissipating shaft charge |
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| CN107933300A (en) * | 2017-11-16 | 2018-04-20 | 武汉理工大学 | A kind of electric automobile coaxial-type In-wheel motor driving system synthesis |
| CN210075009U (en) * | 2019-04-30 | 2020-02-14 | 中汽研汽车检验中心（天津）有限公司 | New energy automobile electric drive system motor axial electromagnetism disturbance remove device |
-
2019
- 2019-04-30 CN CN201910362734.7A patent/CN110120723A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5914547A (en) * | 1997-11-21 | 1999-06-22 | Magnetek, Inc. | Auxiliary bearing assembly for reduction of unwanted shaft voltages in an electric motor |
| US20050285464A1 (en) * | 2004-06-28 | 2005-12-29 | Orders Marcus D | Method and apparatus for dissipating shaft charge |
| CN1866680A (en) * | 2005-05-16 | 2006-11-22 | 襄樊特种电机有限公司 | Motor for hybrid electric vehicle and drive coupling and clutch device composed thereof |
| CN103457392A (en) * | 2013-09-09 | 2013-12-18 | 中达电机股份有限公司 | Bearing structure capable of removing shaft currents |
| CN204030845U (en) * | 2014-09-03 | 2014-12-17 | 东方电气（乐山）新能源设备有限公司 | Motor output shaft and universal joint insulation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030592A (en) * | 2021-02-25 | 2021-06-25 | 中车青岛四方机车车辆股份有限公司 | Method, system and device for analyzing external radiation of motor train unit |
| CN114123663A (en) * | 2021-12-09 | 2022-03-01 | 江苏中工高端装备研究院有限公司 | Current isolating device and method for permanent magnet synchronous semi-direct-drive variable frequency speed regulation motor shaft |
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