CN106329868A - Motor, electric vehicle with same motor, and hybrid vehicle with same motor - Google Patents

Motor, electric vehicle with same motor, and hybrid vehicle with same motor Download PDF

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Publication number
CN106329868A
CN106329868A CN201510375578.XA CN201510375578A CN106329868A CN 106329868 A CN106329868 A CN 106329868A CN 201510375578 A CN201510375578 A CN 201510375578A CN 106329868 A CN106329868 A CN 106329868A
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CN
China
Prior art keywords
motor
axle
outfan
axle body
rotor
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Granted
Application number
CN201510375578.XA
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Chinese (zh)
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CN106329868B (en
Inventor
黄建成
祝仕平
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Siemens AG
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Siemens AG
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Publication of CN106329868A publication Critical patent/CN106329868A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/64Electric machine technologies in electromobility

Abstract

The invention provides a motor, an electric vehicle with the same motor, and a hybrid vehicle with the same motor. The motor comprises a motor shaft (30), a rotor (10) and a stator (20), wherein the motor shaft (30) comprises a shaft body (31) and an installation shaft (32), the shaft body (31) is used for bearing the rotor (10), and the installation shaft (32) is coaxially fixed on a non-output end (318) of the shaft body (31) with the shaft body (31). A rotor part (41) of an encoder (40) of the motor (100) can be fixed on the installation shaft (32).

Description

Motor and there is the electric vehicle of this motor, motor vehicle driven by mixed power
Technical field
The present invention relates to a kind of motor, especially there is the traction electric machine of core motor axle, and further relate to the electricity with this motor Motor-car and motor vehicle driven by mixed power.
Background technology
On electric automobile or hybrid vehicle, logical between outfan and the power shaft of reduction box of the motor shaft of driving motor The mode such as key or spline often can be used to be attached.On the other hand, the non-outfan of motor shaft and encoder, particularly rotate The rotor portion of encoder generally uses tight fit connection.Along with the development of electric automobile, to the power density requirements driving motor More and more higher with cost requirement.When the size of motor shaft increases, the size for the rotary encoder of motor shaft coupling is accomplished by phase Should become big in ground, thus need bigger installing space, and even need to arrange bigger housing.
Summary of the invention
In order to solve said one or multiple problem, present invention firstly provides a kind of motor, including a: motor shaft, a rotor and One stator, wherein said motor shaft includes: an axle body, and it is used for supporting described rotor;And one install axle, it can be with Described axle body is coaxially fixable to a non-output of described axle body, wherein, the rotor portions of an encoder of described motor Divide and can be fixed on described installation axle.By motor shaft being designed as two parts respectively so that axle body may be used for jail Admittedly the rotor of supporting motor, independent installs axle then for supporting the rotor portion of encoder, so can use diameter very Little encoder, and used the encoder of major diameter without limiting by the diameter of the axle body of motor, thus can ensure Under conditions of the supporting of main component of electrical machine, reduce the installing space of installing space, especially encoder.
According to a kind of advantageous embodiment, described axle body is hollow axle, comprising: a cavity portion, it is along described axle body The axially extending non-outfan penetrating described axle body and an outfan opposed with described non-outfan vertically, thus point Not Xing Cheng one first opening, it is positioned at described output;And one second opening, it is positioned at described non-output, wherein, The circumferential inner surface of described first opening is provided with internal spline.By being hollow axle by axle body design, using the teaching of the invention it is possible to provide bigger Power exports.And according to the embodiment of the invention, due to the individually designed installation axle having for installing encoder, can So that the cavity portion of hollow axle forms the through-hole structure axially extended, this is different from the blind hole knot of traditional integrated motor axle Structure.When for blind hole structure, the internal spline processing to the outfan of motor shaft needs to be carried out by slotting mode, and such cost is relatively High and inefficient.When axle being designed as two-part construction, and when the cavity of axle body is designed as through-hole structure, so that it may in order to With the opening of the non-outfan of axle body, the internal spline of outfan being carried out wire pulling method, this can provide efficiency and precision and reduce Cost.
According to a kind of advantageous embodiment, described installation axle includes: one first end, and it can be pressed into described axle body In second opening, form tight fit.Such it be designed to realize in a straightforward manner that axle is installed and be connected with the fixing of axle body. And the supporting of the rotor portion to encoder it is subjected only to owing to installing axle, the most friction tight connection is enough.
According to a kind of advantageous embodiment, described installation axle also includes: a diameter diminution part, and it is arranged on along described installation axle The second axially the most opposed with described first end end, wherein this diameter diminution part is used for installing the rotor portion of encoder.Diameter contracts Little portion can design concrete direct according to the size of rotor portion of the encoder selected.Owing to can independently be designed, Can thereby saving the installing space of encoder with the least encoder of preferred dimension, the design of such back end cover for motor can also More flexibly, space is saved.
According to a kind of advantageous embodiment, described installation axle also includes: a defining flange, and it is along the radial direction of described installation axle Prominent, between described first end and described diameter diminution part.This defining flange may be used for limiting installation axle and is inserted into axle originally Axial location in body.
According to a kind of advantageous embodiment, described installation axle also includes: a positive stop lug boss, and it is arranged on described diameter diminution part The one end away from the second end.This positive stop lug boss may be used for the rotor portion limiting encoder relative to the axial position installing axle Put.
According to a kind of advantageous embodiment, described axle body is respectively provided with described non-output at described outfan and sets Put the concave station of bearing.Thus the supporting to whole motor shaft is also distributed about on axle body, can be more so that install shaft design For flexibly, i.e. can be designed according to the size of undersized encoder to be taken, and scrupulous to motor shaft without crossing Rotating support.
According to a kind of advantageous embodiment, described axle body also includes: a locating surface, and it is along described axial at described axle body Outer peripheral face extend, for being connected with the rotor fixed position of described motor.This locating surface generally can be by the outer peripheral face of countershaft body Material remove obtain, such locating surface cooperates with the locating surface in the rotor of motor, for the rotor of limiting motor Rotation relative to motor shaft.
The invention still further relates to vehicle, particularly electric vehicle or motor vehicle driven by mixed power, it includes as appointed in the respective embodiments described above Anticipate a described motor.
Accompanying drawing explanation
The following drawings is only intended to, in schematically illustrating the present invention and explaining, not delimit the scope of the invention.Wherein,
Fig. 1 schematically shows a part for the motor according to one embodiment of the present invention with sectional view;
Fig. 2 schematically shows the rotor of the motor shaft according to one embodiment of the present invention and encoder with sectional view Part;
Fig. 3 schematically shows the rotor of the motor shaft according to one embodiment of the present invention and encoder with explosive view Part.
Reference numerals list:
10 rotors
20 stators
30 motor shafts
31 axle bodies
32 install axle
34 cavity portion
The outfan of 35 motor shafts
The non-outfan of 36 motor shafts
40 encoders, rotary encoder
The rotor portion of 41 encoders
The stationary part of 42 encoders
51,52 bearing
60 electric motor end caps
70 stator cases
100 motors
311 concave stations
312 concave stations
313 first openings
314 chamferings
315 second openings
316 shoulder holes
The outfan of 318 axle bodies
The non-outfan of 319 axle bodies
321 the first ends installing axle
322 positive stop lug boss
323 the second ends installing axle
325 defining flanges
326 diameter diminution parts
412 installing holes
3193 locating surfaces
Detailed description of the invention
In order to the technical characteristic of the present invention, purpose and effect are more clearly understood from, the now tool of the comparison accompanying drawing explanation present invention Body embodiment.
Fig. 1 schematically shows a part for the motor 100 according to one embodiment of the present invention with sectional view.Motor 100 Can be motor can also be electromotor.This motor 100 includes a motor shaft 30, and the axis x direction of motor shaft 30 leads to Also it is often the axial x of motor 100.It is provided with the rotor 10 of motor 100 by tight fit on the radially-outer surface of motor shaft 30.? The stator 20 of motor 100 it is surrounded with in the outer radial periphery of rotor 10.Outer radial periphery at this stator 20 is additionally provided with stator case 70. Motor shaft 30 is pivotally propped up by bearing 51,52 respectively in its outfan 35 side and non-outfan 36 side Hold.
The non-outfan 36 of motor shaft 30 is additionally provided with the encoder 40 of motor 100, is rotary coding in this embodiment Device.The rotor portion 41 of encoder 40 is fixed at the non-outfan 36 of motor shaft 30, along with motor shaft 30 rotates;It is fixed Subdivision 42 is fixing with the end cap 60 of the housing parts of motor or motor to be connected.The operation principle of encoder 40 is the most superfluous at this State.
In existing design, the motor shaft of motor is usually designed to be one.Its motor shaft non-output end ( Axially with respect to the side that outfan is opposed) be typically to close, the rotor of such encoder can be non-at this of motor shaft with ring set On output end, along with motor shaft rotates together.But, when needing to use hollow axle to set to provide bigger output Timing, under this design, even if make the outfan opening of motor shaft for designing internal spline, so formed one Cavity portion is also at the blind hole towards outfan opening being internally formed of motor shaft rather than through hole.Therefore, when to output When the internal spline of end is processed, it is necessary to carry out shaping (because non-outfan is closed), cause working (machining) efficiency relatively low and smart Spend relatively low, and cost is the most of a relatively high.In order to solve this problem, according to this embodiment of the present invention, motor shaft is designed For including that an axle body 31 and one install axle 32.
In order to be described the motor shaft 30 of this embodiment according to the present invention further, Fig. 2 illustrates respectively with sectional view Property show the structure of this motor shaft 30 and the rotor portion 41 of encoder 40.As it can be seen, motor shaft 30 includes one Axle body 31 and an installation axle 32.Axle body 31 was two independent, difference with installing axle 32 before being assembled together Parts (non-Unitary).The outfan 318 of axle body 31 is corresponding to the outfan 35 of motor shaft 30, and it also has one Axially opposed with this outfan 318 for x non-outfan 319.The outfan 318 usually motor 100 of axle body 31 One end that motor shaft 30 is connected with the power shaft (not shown) of decelerator.The power shaft of outfan 318 and decelerator can To be attached by various ways such as bonded, spline connections.In order to realize bigger output, according to the present invention, will Axle body 31 is designed as a hollow axle 31, and it has a cavity portion 34 that the most axially x extends, this cavity portion Can be that the through hole that multiple and axial x is coaxially disposed is constituted.Cavity portion 34 runs through two axial end portions of axle body 31, is formed The through-hole structure that axially x extends, and at outfan 318, form first opening 313 respectively, and in non-output Hold one the second opening 315 of formation at 319.Wherein, in order to realize the connection of motor shaft 30 and the power shaft of decelerator, at sky Chamber portion 34 is provided with internal spline 317 near the circumferential inner surface of the first opening 313, its can with on the power shaft of decelerator External splines forms spline pair, thus realizes the transmission of power.Certainly, would generally be at the first opening 313 when processing internal spline 317 Place forms chamfered section 314.Owing to axle to be designed as the axle body with the cavity portion 34 of through-hole type, the non-output of axle body 31 Holding and also form opening at 319, thus can be processed internal spline in the way of using broaching, this is compared to using blind hole Shaping can with high efficiency, low cost realize processing to internal spline.
On the other hand, in order to install the encoder 40 of motor on non-outfan 319 side of axle body 31, the most generally revolve Turn the rotor portion 41 of encoder, in this embodiment according to the present invention, be provided with the rotor portion 41 for installing encoder Installation axle 32.Installing axle 32 with axle body 31 is two parts respectively.As in figure 2 it is shown, install axle 32 there is one First end 321, it arranges towards the second opening 315 of axle body 31 when assembling, is used for being pressed in this second opening 315, Make that axle 32 is installed to assemble coaxially with axle body 31.In order to preferably position, it is provided with one along installation installing on axle 32 The radially projecting defining flange 325 of axle.Defining flange 325 axially x is positioned at the first end 321 and second installing axle 32 Between end 323 (installing the other end opposed with the first end 321 on axial x of axle 32).At the second end installing axle 32 Being provided with a diameter diminution part 326 at 323, it is relative to the first end in the second opening 315 for being inserted into axle body 31 321 can have the diameter that may be significantly smaller, in other words cross-sectional area.It is straight that the rotor portion 41 of encoder 40 can be located on this Footpath reduces on the radially-outer surface in portion 326.Specifically, rotor portion 41 can have installing hole 412, this installing hole 412 The circumferential exterior surface of diameter diminution part 326 can be tightly fitted in.Certainly, for the location of rotor portion 41, it is also possible at diameter The side away from the second end 323 reducing portion 326 is provided with the diameter positive stop lug boss 322 more than this diameter diminution part 326, The end face being perpendicular to axial x towards this installation axle 32 making rotor portion 41 can be resisted against this positive stop lug boss 322 On.
Fig. 3 with the visual angle as viewed from the direction from the non-outfan of motor shaft 30, with three-dimensional explosive view show motor shaft 30 with The rotor portion 41 of encoder 40.Wherein combine Fig. 1 it can be seen that on axle body 31, also at the outfan of axle body 31 318 and non-outfan 319 at be respectively provided with a recess 3191,3192 the most circlewise respectively.The two recess 3191, 3192 form the installation portions of bearing 51,52 arranging motor shaft 30, i.e. bearing 51,52 can be located on recess 3191, At 3192.Additionally, axially x is provided with a locating surface 3193 on axle body 31, it can be by axially x in institute State the face formed by the way of removing material on the outer peripheral face of axle body to constitute.This approximates rectangular locating surface 3193 Position during for assembling with the rotor 10 of motor 100.On the rotor 10 of motor 100 and the axial length of stator 20 Supporting provided by axle body 31, i.e. install axle 32 be generally used only for encoder as the parts independent of axle body 31 The rotor portion 42 of 40 provides supporting.In figure 3 it can also be seen that the end difference of a shoulder hole in the second opening 315 Or shoulder hole 316, it can be used for carrying out spacing to installation axle 32.
It is to be understood that, although this specification describes according to each embodiment, but the most each embodiment only comprises an independence Technical scheme, this narrating mode of description be only the most for clarity sake, those skilled in the art should using description as One entirety, the technical scheme in each embodiment can also through appropriately combined, formed it will be appreciated by those skilled in the art that other Embodiment.
The foregoing is only the schematic detailed description of the invention of the present invention, be not limited to the scope of the present invention.Any this area Technical staff, the equivalent variations made on the premise of without departing from the design of the present invention and principle, revise and combine, all should belong to In the scope of protection of the invention.

Claims (10)

1. motor (100), including: a motor shaft (30), a rotor (10) and a stator (20), it is characterised in that
Described motor shaft (30) including:
One axle body (31), it is used for supporting described rotor (10);And
One installs axle (32), and it can be coaxially fixable to described axle body (31) with described axle body (31) One non-outfan (318) place, wherein,
The rotor portion (41) of one encoder (40) of described motor (100) can be fixed on described installation axle (32) On.
Motor the most according to claim 1, it is characterised in that described axle body (31) is hollow axle (31), comprising:
One cavity portion (34), it extends across the non-of described axle body (31) along axial (x) of described axle body (31) Outfan (319) and along this outfan (318) that axially (x) is opposed with described non-outfan (319), thus Formed respectively:
One first opening (313), it is positioned at described outfan (318) place;And
One second opening (315), it is positioned at described non-outfan (318) place,
Wherein, the circumferential inner surface at described first opening (313) place is provided with internal spline (317).
Motor the most according to claim 2, it is characterised in that described installation axle (32) including:
One first end (321), it can be pressed in second opening (315) of described axle body (31), forms close-fitting Close.
Motor the most according to claim 3, it is characterised in that described installation axle (32) also includes:
One diameter diminution part (326), it is axially the most right with described first end (321) that it is arranged on along described installation axle (32) The second end (323) put, wherein this diameter diminution part (323) is for installing the rotor portion (41) of encoder.
Motor the most according to claim 4, it is characterised in that described installation axle (32) also includes:
One defining flange (325), it is radially projecting along described installation axle (32), is positioned at described first end (326) And between described diameter diminution part (326).
6. according to the motor described in claim 4 or 5, it is characterised in that described installation axle (32) also includes:
One positive stop lug boss (322), it is arranged on one end away from the second end (323) of described diameter diminution part (326).
Motor the most according to claim 1 and 2, it is characterised in that described axle body (31) is in described outfan (318) The concave station (3191,3192) that bearing (51,52) are set it is respectively provided with described non-outfan (319) place.
Motor the most according to claim 1 and 2, it is characterised in that described axle body (31) also includes:
One locating surface (3193), it extends at the outer peripheral face of described axle body (31) along described axially (x), is used for and institute The rotor fixed position stating motor (100) connects.
9. vehicle, it includes the motor as described in any one in the claims 1-8.
10. vehicle as claimed in claim 9, it is characterised in that described vehicle is particularly electric vehicle or hybrid electric vehicle ?.
CN201510375578.XA 2015-06-30 2015-06-30 Motor and electric vehicle and hybrid vehicle with same Active CN106329868B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510375578.XA CN106329868B (en) 2015-06-30 2015-06-30 Motor and electric vehicle and hybrid vehicle with same

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Application Number Priority Date Filing Date Title
CN201510375578.XA CN106329868B (en) 2015-06-30 2015-06-30 Motor and electric vehicle and hybrid vehicle with same

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CN106329868A true CN106329868A (en) 2017-01-11
CN106329868B CN106329868B (en) 2021-10-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109904976A (en) * 2019-03-29 2019-06-18 重庆升科精锻科技有限公司 A kind of two-part New energy automobile motor axis

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005318745A (en) * 2004-04-28 2005-11-10 Nsk Ltd Electric motor and motor-driven power steering apparatus
CN1987140A (en) * 2005-12-23 2007-06-27 玛琅泰克驱动及控制技术股份有限及两合公司 Gear motor
CN201290051Y (en) * 2008-10-28 2009-08-12 无锡华达电机有限公司 Encoder mounting structure
CN202221929U (en) * 2011-07-30 2012-05-16 陈帮明 Hollow rotor shaft mechanism of motor
CN204271862U (en) * 2014-08-21 2015-04-15 江西工埠机械有限责任公司 Hollow shaft motor
CN204267544U (en) * 2014-08-21 2015-04-15 江西工埠机械有限责任公司 The mounting structure of small aperture encoder

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005318745A (en) * 2004-04-28 2005-11-10 Nsk Ltd Electric motor and motor-driven power steering apparatus
CN1987140A (en) * 2005-12-23 2007-06-27 玛琅泰克驱动及控制技术股份有限及两合公司 Gear motor
CN201290051Y (en) * 2008-10-28 2009-08-12 无锡华达电机有限公司 Encoder mounting structure
CN202221929U (en) * 2011-07-30 2012-05-16 陈帮明 Hollow rotor shaft mechanism of motor
CN204271862U (en) * 2014-08-21 2015-04-15 江西工埠机械有限责任公司 Hollow shaft motor
CN204267544U (en) * 2014-08-21 2015-04-15 江西工埠机械有限责任公司 The mounting structure of small aperture encoder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109904976A (en) * 2019-03-29 2019-06-18 重庆升科精锻科技有限公司 A kind of two-part New energy automobile motor axis
CN109904976B (en) * 2019-03-29 2021-01-26 重庆升科精锻科技有限公司 Two segmentation new energy automobile motor shafts

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