CN106274463A - A kind of integrated high efficiency electric drive assembly - Google Patents
A kind of integrated high efficiency electric drive assembly Download PDFInfo
- Publication number
- CN106274463A CN106274463A CN201610857021.4A CN201610857021A CN106274463A CN 106274463 A CN106274463 A CN 106274463A CN 201610857021 A CN201610857021 A CN 201610857021A CN 106274463 A CN106274463 A CN 106274463A
- Authority
- CN
- China
- Prior art keywords
- rotor
- motor
- electric drive
- high efficiency
- drive assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
Abstract
The present invention relates to a kind of integrated high efficiency electric drive assembly, by casing, motor, decelerator and differential mechanism composition, casing includes decelerator left box body (1) and integrated form casing (5), integrated form casing (5) is integrally cast with motor housing by decelerator right case, integrated form casing (5) is to manufacture by the way of casting technique and heat treatment and high accuracy processing, there are bigger strength and stiffness, without external splines reducer input shaft (2) and without between the motor output shaft (4) of internal spline by the type of attachment of strong interference fit, improve the transmission efficiency of electric drive assembly；And realize balance by two bearings between motor output shaft and reducer input shaft.Motor stator (6) and rotor (7) are Bao pie, can shorten motor axial dimension, make the profile space of assembly reduce, considerably increase the flexible arrangement of power assembly.Pole-shoe face at motor stator (6) offers at least one groove, and on the outer peripheral face of rotor (7), uniform intervals is provided with multiple concave surface, and the gap location between upper two the adjacent V-shaped grooves of rotor (7) has hole A.
Description
Technical field
The invention belongs to electric powered motor drive assembly, particularly relate to a kind of integrated high efficiency electric drive assembly.
Background technology
Presently used electric powered motor drive assembly, great majority are for pass through between motor output shaft and reducer input shaft
Traditional spline type of attachment transmission power, the fixed form being bolted motor and decelerator carries out power drive.So
And, this traditional powered version transmission link is many, and axial dimension causes greatly volume bigger than normal and quality weight, causes passing
Efficiency of movement is low, and between bolt, to compare integrated box structure weak for the strength and stiffness of attachment structure, and interior external splines manufacturing cost is high.
Also having in some prior aries, motor output shaft and the balanced structure of reducer input shaft, being generally required for 3 bearings could be real
Now balance.It addition, the efficiency of motor of the prior art also has much room for improvement, to this end, the present invention proposes a kind of integrated high efficiency
Electric drive assembly, this electric drive assembly is the improvement by a series of technology, and electric drive assembly reaches the highest efficiency, the most again
Manufacturing cost can be reduced.
Summary of the invention
The purpose of the present invention is to propose to a kind of integrated high efficiency electric drive assembly, decrease transmission link, improve transmission effect
Rate, reduces volume, weight, cost, also enhances the intensity of structure simultaneously, improve safety.
The technical scheme is that a kind of integrated high efficiency electric drive assembly, by casing, motor, decelerator and differential
Device forms, it is characterised in that: casing includes decelerator left box body 1 and integrated form casing 5, and integrated form casing 5 is by the right case of decelerator
Body is integrally cast with motor housing, and motor output shaft 4 is connected with reducer input shaft 2, reducer input shaft 2 without external splines,
The drive mechanism that motor output shaft 4 is constituted after connecting without internal spline, motor output shaft and reducer input shaft is by two bearings
Realizing balance, described motor uses motor stator 6 and the rotor 7 of pie of pie, and is fixed by pie motor stator 6
In integrated form casing 5, the pole-shoe face of motor stator 6 offers at least one groove, and the outer peripheral face of rotor 7 is non-circular,
On the outer peripheral face of rotor, uniform intervals is provided with multiple concave surface, and rotor 7 is provided with number identical with rotor number of poles
The V-shaped groove of amount, two adjacent V-shaped grooves have gap near rotor outer peripheral face side, and place has hole A in this gap.
Motor stator 6 and rotor 7 are pancake shape.
Preferably, the quantity of concave surface is the integral multiple of rotor number of poles.
Preferably, being disposed with multiple permanent magnet in rotor, the iron core above permanent magnet has little vertical slot B.
Preferably, rotor has multiple hole C, hole C by three roundlets around a great circle group in the lower section of permanent magnet
Becoming, multiple hole C are uniformly distributed around the central shaft hole of rotor.
Preferably, V-shaped groove is made up of two disconnected elongated slots, and the big opening of V-shaped groove is towards the periphery of rotor
Face, places permanent magnet in the elongated slot of V-shaped groove.
Preferably, being shaped as of hole A is trapezoidal, specially isosceles trapezoid.
Preferably, it is to connect with the fit form of strong interference between described motor output shaft 4 and reducer input shaft 2.
Preferably, it is to connect with the fit form of interference between described motor output shaft 4 and rotor 7.
Preferably, to realize motor output shaft defeated to decelerator by being located at each bearing at two ends for described drive mechanism
Entering the balance between axle, the bearing of one end is fixed on decelerator left box body 1, and the bearing of the other end is fixed on back end cover for motor
On.
Preferably, sealed by axial seal 3 between motor and decelerator.
Preferably, the outer surface at integrated form casing 5 is provided with a plurality of radiating ribs.
The invention has the beneficial effects as follows: reduce volume, reduce weight and cost, reducing transmission link, enhancing finishes
The strength and stiffness of structure, improve the utilization rate of transmission efficiency and energy, and are effectively reduced cogging torque and the pulsation of motor
Torque, improves torque and the efficiency of magneto, also helps the material cost reducing motor Magnet, improve motor torque special
Property, improve the effect of rotor dynamic balancing, enhance safety and reliability simultaneously.The integrated high efficiency electric drive assembly of the present invention
Improve the efficiency of 15% relative to traditional electric automobile drive assembly, the most overall efficiency improves 3%, the efficiency of motor
Grade can reach the level of IE2.
The present invention is described in detail with embodiment below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention a kind of integrated high efficiency electric drive assembly.
Fig. 2 is the front view of the present invention a kind of integrated high efficiency electric drive assembly.
Fig. 3 is the plane graph of motor stator in the present invention a kind of integrated high efficiency electric drive assembly.
Fig. 4 is the plane graph of rotor in the present invention a kind of integrated high efficiency electric drive assembly.
Detailed description of the invention
The core of the present invention relates to a kind of integrated high efficiency electric drive assembly, by casing, motor, decelerator and differential mechanism
Composition, motor is magneto.Casing includes decelerator left box body 1 and integrated form casing 5, and integrated form casing 5 is right by decelerator
Casing is integrally cast with motor housing, and integrated form casing 5 is real by the way of casting technique and heat treatment and high accuracy processing
Show bigger intensity, rigidity, it is ensured that safety and reliability, also reduce the volume of drive assembly, weight simultaneously, it is achieved
Lightweight.
Motor output shaft 4 is connected with reducer input shaft 2, and reducer input shaft 2 is without external splines, motor output shaft 4 nothing
Internal spline, the type of attachment between reducer input shaft 2 and motor output shaft 4, use the method for hot charging and cold charge to reach mistake by force
It is full of cooperation, instead of the spline fitted form of conventional electric Automobile drive assembly, by this design at motor and decelerator
Between use, decrease the transmission link between input and output shaft, improve the transmission efficiency of electric drive assembly, also remove simultaneously
The manufacturing process that spline is complicated.Motor has motor stator 6 and rotor 7, between rotor 7 and motor output shaft 4
Also by interference fit, eliminating the keyway fit system in conventional design, the design advantage of this motor is to reduce many places
Transmission link, improves transmission efficiency further, makes up to the transmission efficiency of 94%.Simplify manufacturing process simultaneously, reduce
Manufacturing cost.
The drive mechanism that motor output shaft and reducer input shaft are constituted after connecting realizes balance, institute by two bearings
State drive mechanism and realize motor output shaft to the balance between reducer input shaft by being located at each bearing at two ends, one
End bearing is fixed on decelerator left box body 1, and other end bearing is fixed on motor rear end lid, and two bearings more can guarantee that coaxially
The precision of degree, also can reduce countershaft impact, moreover it is possible to lower vibration when running up, simultaneously to the design of axial dimension chain and
The calculating of precision is made in the cooperation of each part dimension and position, it is ensured that will not cause motor output shaft and reducer input shaft very
Big impact.
Motor stator 6 and rotor 7 are pancake shape, can shorten motor axial dimension, make the profile space of assembly subtract
Little, considerably increase the flexible arrangement of power assembly.
The heat of motor can be conducted on gear box casing by integrated form casing 5, and the outer surface of integrated form casing is arranged
There is a plurality of radiating ribs, and the resemblance due to housing and the radiating ribs thickness to its shell carry out fine processing so that it is body
Long-pending and quality reduces, it is achieved lightweight, ensure that bigger area of dissipation simultaneously, is more conducive to more preferably heat radiation, decreases energy
Loss, and then improve the utilization rate of energy.
By using axial seal 3 both to reach the effect of separating dry space from moist space between motor and decelerator, serve again good
Sealing function.
The pole-shoe face of motor stator 6 offers at least one groove 8, by arranging above-mentioned groove 8, increases equivalence gas
Gap, reduces the torque pulsation of motor, improves direct torque precision, also can reduce the noise of motor, and the width of groove 8 is 0.1 milli
Rice～3 millimeters, the degree of depth is 0.1 millimeter～3 millimeters.Each pole-shoe face can arrange 1～6 groove 8, and groove 8 is advised on pole-shoe face
Then it is distributed.
On the outer peripheral face of rotor 7, uniform intervals is provided with multiple concave surface 9, and the quantity of concave surface 9 is rotor number of poles
Integral multiple, so can be effectively improved the magnetic flux distribution of rotor outer circle circumferential portion iron core, make the magnetic of inflow motor stator portion
The line of force does not produce sudden change, reduces cogging torque and the pulsating torque of motor, improves torque and the efficiency of magneto, also helps
Reduce the material cost of motor Magnet.Wherein, the degree of depth of concave surface is the 1-3 of electromagnetic steel plate (stalloy) thickness of rotor core
Times.
Rotor is provided with and the V-shaped groove of permanent magnet machine rotor number of poles equal number, V-shaped groove by two disconnected carefully
Elongated slot forms, and the big opening of V-shaped groove, towards the outer peripheral face of rotor, places permanent magnet, two phases in the elongated slot of V-shaped groove
Adjacent V-shaped groove has gap near rotor outer peripheral face side, and place has hole A10 in this gap, and hole A10 is shaped as ladder
Shape, concretely isosceles trapezoid are by above-mentioned location arrangements hole A10, it is possible to reduce the pulsating torque of motor and leakage field, permissible
Improve the efficiency of motor.
Being disposed with multiple permanent magnet in rotor, the iron core above permanent magnet has little vertical slot B11, is shaped as long
Circle, can facilitate the combination of technique manufacture and core stamping to install.
Rotor has multiple hole C 12, hole C 12 by three roundlets around a great circle group in the lower section of permanent magnet
Becoming, multiple hole C 12 are uniformly distributed around the central shaft hole of rotor, and this design is the design of rotor dynamic balancing, can be fast
Speed is readily achieved rotor dynamic balancing, shortens operating process and improves the effect of rotor dynamic balancing.Motor stator 6 is fixed on integrated
In formula casing 5, and by interference fit between rotor 7 and motor output shaft 4, eliminate traditional keyway cooperation side
Formula, had both simplified manufacturing process, and had improve again the axiality between motor output shaft 4 and rotor 7, be more beneficial for motor
The design of balance calculates.
Above example only in order to technical scheme to be described, is not intended to limit；Although with reference to previous embodiment
The present invention is described in detail, it will be understood by those within the art that；It still can be to aforementioned each enforcement
Technical scheme described in example is modified, or wherein portion of techniques feature is carried out equivalent；And these amendment or
Replace, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (13)
1. an integrated high efficiency electric drive assembly, is made up of casing, motor, decelerator and differential mechanism, it is characterised in that: casing
Including decelerator left box body (1) and integrated form casing (5), integrated form casing (5) is by decelerator right case and motor housing one
Casting, motor output shaft (4) is connected with reducer input shaft (2), and reducer input shaft (2) is without external splines, motor output shaft
(4) without internal spline, the drive mechanism that motor output shaft and reducer input shaft are constituted after connecting realizes putting down by two bearings
Weighing apparatus, described motor uses motor stator (6) and the rotor (7) of pie of pie, and is fixed on by pie motor stator (6)
In integrated form casing (5), the pole-shoe face of motor stator (6) offers at least one groove, and the outer peripheral face of rotor (7) is non-
Circle, on the outer peripheral face of rotor, uniform intervals is provided with multiple concave surface, and rotor (7) is provided with and rotor number of poles
The V-shaped groove of equal number, two adjacent V-shaped grooves have gap near rotor outer peripheral face side, and place opens in this gap
Porose A.
A kind of integrated high efficiency electric drive assembly the most according to claim 1, it is characterised in that motor stator (6) and electricity
Machine rotor (7) is pancake shape.
A kind of integrated high efficiency electric drive assembly the most according to claim 1, it is characterised in that the quantity of concave surface is motor
The integral multiple of rotor number of poles.
A kind of integrated high efficiency electric drive assembly the most according to claim 1, it is characterised in that be disposed with in rotor
Multiple permanent magnets, the iron core above permanent magnet has little vertical slot B.
A kind of integrated high efficiency electric drive assembly the most according to claim 4, it is characterised in that rotor is at permanent magnet
Lower section have multiple hole C, hole C is made up of around a great circle three roundlets, and multiple hole C are equal around the central shaft hole of rotor
Even distribution.
A kind of integrated high efficiency electric drive assembly the most according to claim 1, it is characterised in that V-shaped groove is not connected by two
Logical elongated slot composition, the big opening of V-shaped groove, towards the outer peripheral face of rotor, places permanent magnet in the elongated slot of V-shaped groove.
A kind of integrated high efficiency electric drive assembly the most according to claim 1, it is characterised in that being shaped as of hole A is trapezoidal.
A kind of integrated high efficiency electric drive assembly the most according to claim 7, it is characterised in that hole A is shaped as isosceles
Trapezoidal.
A kind of integrated high efficiency electric drive assembly the most according to claim 1, it is characterised in that described motor output shaft
And be to connect with the fit form of strong interference between reducer input shaft (2) (4).
A kind of integrated high efficiency electric drive assembly the most according to claim 1, it is characterised in that described motor output shaft
And be to connect with the fit form of interference between rotor (7) (4).
11. a kind of integrated high efficiency electric drive assemblies according to claim 1, it is characterised in that described drive mechanism leads to
Crossing each bearing being located at two ends to realize motor output shaft to the balance between reducer input shaft, the bearing of one end is fixed
On decelerator left box body (1), the bearing of the other end is fixed on motor rear end lid.
12. a kind of integrated high efficiency electric drive assemblies according to claim 1, it is characterised in that motor and decelerator it
Between sealed by axial seal (3).
13. a kind of integrated high efficiency electric drive assemblies according to claim 1, it is characterised in that in integrated form casing (5)
Outer surface be provided with a plurality of radiating ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610857021.4A CN106274463B (en) | 2016-09-27 | 2016-09-27 | A kind of integrated electric drive assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610857021.4A CN106274463B (en) | 2016-09-27 | 2016-09-27 | A kind of integrated electric drive assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106274463A true CN106274463A (en) | 2017-01-04 |
| CN106274463B CN106274463B (en) | 2017-08-25 |
Family
ID=57716095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610857021.4A Active CN106274463B (en) | 2016-09-27 | 2016-09-27 | A kind of integrated electric drive assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN106274463B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107416215A (en) * | 2017-01-13 | 2017-12-01 | 重庆星环航空科技有限公司 | Directly drive the power distributing structure of main reducing gear |
| CN109398060A (en) * | 2018-12-11 | 2019-03-01 | 北京宏瑞汽车科技股份有限公司 | A kind of integrated electric drive system |
| CN109455074A (en) * | 2018-12-11 | 2019-03-12 | 北京宏瑞汽车科技股份有限公司 | A kind of integrated electric drive system |
| CN109703345A (en) * | 2019-02-28 | 2019-05-03 | 北京宏瑞汽车科技股份有限公司 | A kind of coaxial-type electric drive system |
| CN110154747A (en) * | 2018-02-12 | 2019-08-23 | 比亚迪股份有限公司 | The speed changer of vehicle, the power assembly of vehicle and vehicle |
| CN112193043A (en) * | 2020-09-30 | 2021-01-08 | 西门子电动汽车动力总成系统(上海)有限公司 | Electric drive assembly system and vehicle |
| WO2022068821A1 (en) * | 2020-09-30 | 2022-04-07 | Siemens Automotive Epowertrain Systems (Shanghai) Co., Ltd. | Electric drive assembly system and vehicle |
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| JPH10164797A (en) * | 1996-11-25 | 1998-06-19 | Toyota Motor Corp | Motor integrated with its decelerator |
| US5770904A (en) * | 1994-03-08 | 1998-06-23 | Grundl Und Hoffman Gmbh Gesellschaft Fur Elektrotechnische Entwicklungen | Electric motor |
| CN1267943A (en) * | 1997-07-22 | 2000-09-27 | 松下电器产业株式会社 | Motor with rotor containing inner permanent magnet |
| CN101015111A (en) * | 2004-10-21 | 2007-08-08 | 肖普瓦克公司 | Reluctance machine having a non-uniform air gap between a rotor pole and a stator pole |
| CN104426264A (en) * | 2013-09-10 | 2015-03-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor magnetic steel fixing structure and motor with same |
| CN104716777A (en) * | 2015-03-10 | 2015-06-17 | 广东合普动力科技有限公司 | Integrated-structure motor for electric vehicle |
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| US5770904A (en) * | 1994-03-08 | 1998-06-23 | Grundl Und Hoffman Gmbh Gesellschaft Fur Elektrotechnische Entwicklungen | Electric motor |
| JPH10164797A (en) * | 1996-11-25 | 1998-06-19 | Toyota Motor Corp | Motor integrated with its decelerator |
| CN1267943A (en) * | 1997-07-22 | 2000-09-27 | 松下电器产业株式会社 | Motor with rotor containing inner permanent magnet |
| CN101015111A (en) * | 2004-10-21 | 2007-08-08 | 肖普瓦克公司 | Reluctance machine having a non-uniform air gap between a rotor pole and a stator pole |
| CN104426264A (en) * | 2013-09-10 | 2015-03-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor magnetic steel fixing structure and motor with same |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107416215A (en) * | 2017-01-13 | 2017-12-01 | 重庆星环航空科技有限公司 | Directly drive the power distributing structure of main reducing gear |
| CN107416215B (en) * | 2017-01-13 | 2024-02-23 | 重庆星环航空科技有限公司 | Power arrangement structure of direct drive main speed reducer |
| CN110154747A (en) * | 2018-02-12 | 2019-08-23 | 比亚迪股份有限公司 | The speed changer of vehicle, the power assembly of vehicle and vehicle |
| CN109398060A (en) * | 2018-12-11 | 2019-03-01 | 北京宏瑞汽车科技股份有限公司 | A kind of integrated electric drive system |
| CN109455074A (en) * | 2018-12-11 | 2019-03-12 | 北京宏瑞汽车科技股份有限公司 | A kind of integrated electric drive system |
| CN109703345A (en) * | 2019-02-28 | 2019-05-03 | 北京宏瑞汽车科技股份有限公司 | A kind of coaxial-type electric drive system |
| CN112193043A (en) * | 2020-09-30 | 2021-01-08 | 西门子电动汽车动力总成系统(上海)有限公司 | Electric drive assembly system and vehicle |
| WO2022068820A1 (en) * | 2020-09-30 | 2022-04-07 | Siemens Automotive Epowertrain Systems (Shanghai) Co., Ltd. | Electric drive assembly system and vehicle |
| WO2022068821A1 (en) * | 2020-09-30 | 2022-04-07 | Siemens Automotive Epowertrain Systems (Shanghai) Co., Ltd. | Electric drive assembly system and vehicle |
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|---|---|
| CN106274463B (en) | 2017-08-25 |
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Effective date of registration: 20170119 Address after: Xuchang City, Henan province 461500 Changge City Industrial Agglomeration District Branch Canal Road East Applicant after: XUCHANG HERUN MECHANICAL AND ELECTRICAL CO., LTD. Address before: 101149 Beijing, Xinhua South Road, No. 39, building No. 99, on the east side of the building, No. Applicant before: Beijing Hong Rui auto technology Company Limited by Shares |
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