CN107181368A - A kind of disc type outer rotor motor of axial magnetic flux stator water-cooling - Google Patents
A kind of disc type outer rotor motor of axial magnetic flux stator water-cooling Download PDFInfo
- Publication number
- CN107181368A CN107181368A CN201710542668.2A CN201710542668A CN107181368A CN 107181368 A CN107181368 A CN 107181368A CN 201710542668 A CN201710542668 A CN 201710542668A CN 107181368 A CN107181368 A CN 107181368A
- Authority
- CN
- China
- Prior art keywords
- stator
- drive end
- cooling
- magnetic flux
- type outer
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
-
- 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
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
A kind of disc type outer rotor motor of axial magnetic flux stator water-cooling of the present invention, is related to automotive electric motors, especially pure electronic, hybrid vehicle drive motor；It includes stator module st100, drive end rotor assembly ro200, anti-drive end rotor assembly ro300, rotary transformer re400, support fr500；Using double rotor single stator framework, rotor therein uses surface-mount type structure；Heat management using stator wheel hub liquid it is cold+stator winding plastic packaging epoxy resin pattern；Electromagnetic scheme uses IP65 degree of protection；Heat convection efficiency high of the present invention, heat exchange area is big, heat-transfer rate is fast, reduce the complexity of gear case assembly power attenuation and system, improve the efficiency and maintainability of system, power density, torque density are big, structure is compacter, is suitable for the fields such as pure electric automobile, hybrid vehicle as the straight application driven, match differential mechanism or gearbox.
Description
Technical field
It is pure electronic, hybrid vehicle drive motor by it the present invention relates to automotive electric motors.
Background technology
It is generally the alternating-current synchronous of radial flux in the motor of pure electric automobile, hybrid vehicle driving field application
Motor, direct current generator or AC asynchronous motor, because the axial installation dimension of conventional radial motor is larger, power density and
Efficiency is all relatively low, is limited to that electric automobile domain level constraints requirement is strict, the applications that efficiency requirements are high.
Conventional water-cooled machine, it is general to use the single methods for cooling such as the end cap water cooling of support water cooling or minority, and it is pure
Electric automobile, mixed power electric motor of automobile degree of protection require high, and chassis installing space is narrow and small, and motor is accelerating to overtake other vehicles, climbed
The operating modes such as slope, produce substantial amounts of heat, it is contemplated that the capacity of heat transmission of air is poor in support, sometimes only by support water cooling or
Person's end cap water cooling is tended not to shed in time to exchange heat, and great challenge is brought to motor temperature rise.
The content of the invention
There is heat convection efficiency high it is an object of the invention to provide one kind, heat exchange area is big, heat-transfer rate it is fast one
Plant the disc type outer rotor motor of axial magnetic flux stator water-cooling.
It includes stator module st100, drive end rotor assembly ro200, anti-drive end rotor assembly ro300, rotation change
Depressor re400, support fr500；Using double rotor single stator framework, rotor therein uses surface-mount type structure；Heat management is used
Stator wheel hub liquid is cold+stator winding plastic packaging epoxy resin pattern；Electromagnetic scheme uses IP65 degree of protection, with the near of the groove of 12 pole 10
Pole groove mode coordinates straight drive, matching differential mechanism or matching reduction box work.
Magnetic circuit runs through stator module st100, drive end rotor assembly ro200 and anti-drive end rotor assembly ro300.
Stator core st101 in stator module st100 by high magnetic permeability, low-loss, ultra-thin silicon steel sheet it is radially superposed and
Into；Stator, which is used, to be improved and turns outside disc type to reduce stator core loss and stator core weight without the design of yoke portion, segmented armature
Sub-motor power density；Stator core st101 is using centralized Winding Design, teeth portion winding stator winding st114；Stator winding
St114 uses plastic packaging epoxy encapsulation.
Stator module st100 and anti-drive end rotor assembly ro300 and drive end rotor assembly ro200 relative motion,
Realized by the angular contact ball bearing ro210 of the drive end deep groove ball bearing ro211 on drive shaft ro208 and anti-drive end.
Stator wheel hub st108 is machined with snake type cooling water channel to increase coolant contact area；Coolant uses 50% water
Mixed with 50% ethylene glycol.
Drive end end cap ro202, support fr500, non-drive end shield ro310 use 7075 series alloys, and carry out
Anodic oxidation blackening process.
Magnet steel ro201 in drive end rotor assembly ro200, by polylith using the making of N38EH materials through parallel magnetization,
The contour fan-shaped small magnet steel composition of epoxy resin plastic packaging.
Anti-drive end rotor assembly ro300 structure type, the basic phase of structure type with drive end rotor assembly ro200
Together, anti-drive end flange st110 is provided with thread groove, coordinates with non-drive end shield ro304 and reaches helixseal effect.
Rotary transformer re400 is designed as magnetoresistance transformer, is taken up space to shorten axial dimension, by solid
Fixed rotation becomes stator and rotation becomes rotor, realizes accurate detection rotor-position signal.
Beneficial effects of the present invention：
Due to using the design of disc-type outer rotor motor heat management：Actively reduction loss and passive reduction loss.
Ultra-thin silicon steel sheet has mainly been considered as in terms of actively reducing loss and has made stator core st101, for reducing
Iron loss, magnet steel ro201, magnet steel ro301 every piece of monomer carry out epoxy coating to block vortex using 3 sections of secter pat designs
To reduce eddy-current loss, stator winding st102 uses the higher enamel-covered wire of minor diameter, paint film temperature resistant grade, multiply and around to drop
The measures such as low high-frequency vortex copper loss.
In terms of passive reduction loss, by stator module st100 stator winding st102 inner ends in stator wheel hub st108
Gusset between space, using epoxy resin plastic packaging, improve the thermal conductivity factor of gap, stator wheel hub st108 is machined with snake
Type cooling water channel, heat is taken away by coolant.Magnet steel ro201, magnet steel ro301 are using the higher N38EH sintering of temperature resistant grade
Neodymium iron boron material.By above measure, disc-type outer rotor motor is provided with higher heatproof and upgraded, and can bear bigger mistake
Carry, structure is compacter, improves power of motor density and torque density.
The internal spline of disc-type outer rotor motor passes through spline pair with the external splines on the output shaft of decelerator or differential mechanism
Connection, wherein being coupled with decelerator, for slowing down；Wheel hub is coupled or to be mounted directly to differential mechanism, for directly driving, because removing
Gear-box, reduces the complexity of gear case assembly power attenuation and system, improves the efficiency and maintainability of system.It is main
Harsh is required to space, reliability, high power density, high efficiency, low noise etc. as traction power, be suitable for it is pure it is electronic,
The fields such as hybrid vehicle are used as the straight application driven, match differential mechanism or gearbox.
Brief description of the drawings
Fig. 1 is parts detonation configuration figure of the invention.
Fig. 2 is overall sectional structure chart of the invention.
Fig. 3 is magnetic structure figure of the invention.
Fig. 4 is stator module sectional structure chart of the invention.
Fig. 5 is stator module detonation configuration figure of the invention.
Fig. 6 is drive end rotor assembly sectional structure chart of the invention.
Fig. 7 is drive end rotor assembly detonation configuration figure of the invention.
Fig. 8 is anti-drive end rotor assembly sectional structure chart of the invention.
Fig. 9 is anti-drive end rotor assembly detonation configuration figure of the invention.
Figure 10 is rotary transformer component sectional structure chart of the invention.
Figure 11 is rotary transformer component detonation configuration figure of the invention.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
The present invention operation principle be：The three-phase of the external inverter outputs of stator winding st114 in stator module st100
Alternating current, produces circular rotating field, and the magnetic field intercepts stator winding st114 that magnet steel ro201, magnet steel ro301 are produced produces sense
Electromotive force is answered, the circular rotating field of stator winding st114 synthesis drives the permanent magnetic field that magnet steel ro201, magnet steel ro301 are produced
Synchronous rotary, produces electromagnetic torque.The heat produced in disc-type outer rotor motor running, mainly passes through stator wheel hub
Circulating cooling liquid in st108 is taken away, and heat is conducted as a result of stator wheel hub st108 coolants cooling+epoxy resin plastic packaging
Scheme, disc-type outer rotor motor can bear bigger overload, possess bigger power density and torque density.
The present invention is a kind of axial excitation flux electric machine, can be driven with electric motor mode, can also generator mode progress
Energy regenerating is used, double rotor single stator framework, using the pole groove coordinated scheme of the groove of 12 pole 10.Wherein rotor uses magnet steel Surface Mount
Formula structure, heat management combines radiating mode using the cooling of stator coolant with stator winding epoxy resin plastic packaging；Including stator pack
Part st100, drive end rotor assembly ro200, anti-drive end rotor assembly ro300, rotary transformer component re400.Stator pack
Part st100 is located at drive end rotor assembly ro200 and anti-drive end rotor assembly ro300 centre, drive end rotor assembly
Positioned between ro200 and anti-drive end rotor assembly ro300 and support fr500 by seam.Drive end rotor assembly ro200,
Anti-drive end rotor assembly ro300, support fr500 connect into the entirety of a rotation, stator by holding screw fr501 tightenings
Component st100 passes through the drive end deep-groove ball axle in rotor assembly ro200 as stationary part, stator wheel hub st108 therein
The flange st110 held in the next spacing fixation of ro211, anti-drive end angular contact ball bearing ro210, stator module st100 is fixed to
On automobile chassis, facilitate outlet and injection coolant.Stator module st100 and drive end rotor ro300 relative motion position
Put, helixseal is carried out by the thread groove on flange st110.Rotary transformer re400 rotation becomes rotor and passes through clamp screw
Nail re407 is fixed on the main shaft ro208 that drive end rotor assembly ro200 is included, and it is fixed that rotation change stator is fixed to by cold pressing
On the flange st110 that sub-component st100 is included, such as Fig. 1, shown in Fig. 2.
Magnetic circuit runs through stator module st100, drive end rotor assembly ro200 and anti-drive end rotor assembly ro300.Specifically
Magnetic circuit is as follows：Magnet steel ro301a → stator core st101a → magnet steel ro201a → rotor core ro202 → magnet steel ro201b →
Stator core st101b → magnet steel ro301b → rotor core ro302.Wherein adjacent magnet steel ro301a and ro301b, ro201a with
Ro201b opposite polarities, it is identical with ro201b polarity with ro201a, ro301b with respect to magnet steel ro301a, as shown in Figure 3.
Stator module st100, such as Fig. 4, shown in Fig. 5, including stator core st101, stator core st101 is by high magnetic conductance
Rate, low-loss, ultra-thin silicon steel sheet are radially superposed in echelon, and stator winding is wound with stator core st101 each tooth
St114, stator winding st114 draw three-phase UVW lead-out wires st115.Stator wheel hub st108 gusset is embedded into stator core
Between st101 adjacent 2 teeth, the end face of stator winding st114 both sides uses outer end ring st103a and outer end ring st103b, spiral shell
Follow closely st120a and be fixed to stator wheel hub st108 with interior end ring st106b, screw st116 with screw st120b, interior end ring st106a
Gusset on, formed an entirety, add the rigidity of system.To limit stator core st101, stator winding st114 footpath
To, axial direction, circumferential movement.Stator core st101 sets cushion block st104a, cushion block by screw st105a, screw st105b
St104b, it is possible to achieve radial direction is compressed, it is ensured that stacking factor so that stress surface is more uniform.Stator core st101 is set
Being equipped with stator slot wedge st113a, slot wedge st113b is used to compress stator winding st114.
Cover plate st107 and cover plate st109 is welded on stator wheel hub st108, forms a sealed cavity, stator wheel hub
St108 is machined with snake type cooling water channel, in cover plate st109 arrangement coolant inlets st118, cooling liquid outlet st119.Flange
St110 is fixed on stator wheel hub st108 by screw st117, and rotation becomes enclosing cover st111 and is fixed to flange by screw st112
On st110.
The heat that stator winding st114, stator core st101 are produced, passes through stator winding st114 inner ends institute plastic packaging
Epoxy resin, is transmitted to the stator wheel hub st108 of aluminum alloy material, and being then machined with snake type by stator wheel hub st108 cools down
Flowing coolant in water channel is taken away.This design, increases the contact area of dissipation of main pyrotoxin, significantly improves stator and dissipates
Thermal effect.
Drive end rotor assembly ro200, is designed to magnet steel surface-mount type structure, to obtain higher power and torque density.
Comprising magnet steel ro201 and main shaft ro208, magnet steel ro201 is fixed to rotor core by briquetting ro213 and holding screw ro214
On ro202, rotor core ro202 is fixed on drive end end cap ro203 by holding screw ro206, limits its tangential, radial direction
Motion.Main shaft ro208 is disposed with drive end deep groove ball bearing ro211 and anti-drive end angular contact ball bearing ro208, uses circle spiral shell
Female spacing anti-drive end angular contact bearing ro210 of ro210, main shaft ro208 are fixed to drive end end cap by screw ro205
On ro203.Spline housing ro204 is fixed on end cap ro203 by screw ro212, for transmitting output torque.Such as Fig. 6, figure
Shown in 7.
Anti-drive end rotor assembly ro300 includes magnet steel ro305, briquetting ro306, rotor core ro302, anti-drive end end
Ro303 is covered, is fixed to by briquetting ro306 and holding screw ro307 on rotor core ro302, rotor core ro302 passes through tight
Determine screw ro304 to be fixed on non-drive end shield ro303, limit its tangential, radial motion, such as Fig. 8, shown in Fig. 9.
Rotary transformer component re400, in order to accurately detect rotor-position signal, rotation set attached bag includes rotation and become
Stator core re401, is embedded with rotation and becomes stator winding re404, rotation becomes stator core re401 by cold pressing, with flange st110 thereon
Interference fit；Rotation, which becomes rotor, includes rotation change rotor core re402, is installed on axle sleeve re406, it is adjusted by sleeve re405
Axial distance, and its circumferential movement is limited by key re408, and limit its axial movement, axle sleeve using shaft block ring re403
Re406 is fixed on the main shaft ro208 in drive end rotor assembly ro200 by screw re407.Rotation is become into stator core
Re401, which is cold-pressed into rotation, to be become in stator flange re409, and rotation becomes stator flange re409 and is provided with mounting hole, and stator is become for adjusting rotation
The position of circumferencial direction, is fixed on the flange st110 in stator module st100 using screw re410, such as Figure 10, Tu11Suo
Show.
Although specific embodiment has been illustrated and described in this specification, it will be understood by those skilled in the art that
In the case of without departing substantially from the scope of the present invention, various replacements or equivalent realize can substitute these shown and described tools
Body embodiment.
Claims (9)
1. a kind of disc type outer rotor motor of axial magnetic flux stator water-cooling, it includes stator module st100, drive end rotor set
Part ro200, anti-drive end rotor assembly ro300, rotary transformer re400, support fr500；It is characterized in that：Using birotor
Single stator framework, rotor therein uses surface-mount type structure；Heat management using stator wheel hub liquid it is cold+stator winding plastic packaging asphalt mixtures modified by epoxy resin
Fat pattern；Electromagnetic scheme uses IP65 degree of protection, with the proximal pole groove mode of the groove of 12 pole 10 coordinate straight drive, matching differential mechanism or
Match reduction box work.
2. a kind of disc type outer rotor motor of axial magnetic flux stator water-cooling as claimed in claim 1, it is characterised in that：Magnetic circuit
Through stator module st100, drive end rotor assembly ro200 and anti-drive end rotor assembly ro300.
3. a kind of disc type outer rotor motor of axial magnetic flux stator water-cooling as claimed in claim 1, it is characterised in that：Stator
Stator core st101 in component st100 is by high magnetic permeability, low-loss, ultra-thin silicon steel sheet is radially superposed forms；Stator uses nothing
The design of yoke portion, segmented armature are close to reduce stator core loss and stator core weight raising disc-type outer rotor motor power
Degree；Stator core st101 is using centralized Winding Design, teeth portion winding stator winding st114；Stator winding st114 is using modeling
Seal epoxy encapsulation.
4. a kind of disc type outer rotor motor of axial magnetic flux stator water-cooling as claimed in claim 1, it is characterised in that：Stator
Component st100 and anti-drive end rotor assembly ro300 and drive end rotor assembly ro200 relative motion, passes through drive shaft
The angular contact ball bearing ro210 of drive end deep groove ball bearing ro211 and anti-drive end on ro208 are realized.
5. a kind of disc type outer rotor motor of axial magnetic flux stator water-cooling as claimed in claim 1, it is characterised in that：Stator
Wheel hub st108 is machined with snake type cooling water channel to increase coolant contact area；Coolant uses 50% water and 50% ethylene glycol
Mix.
6. a kind of disc type outer rotor motor of axial magnetic flux stator water-cooling as claimed in claim 1, it is characterised in that：Driving
Hold end cap ro202, support fr500, non-drive end shield ro310 to use 7075 series alloys, and carry out anodic oxidation nigrescence
Processing.
7. a kind of disc type outer rotor motor of axial magnetic flux stator water-cooling as claimed in claim 1, it is characterised in that：Driving
The magnet steel ro201 in rotor assembly ro200 is held, by polylith using the making of N38EH materials through parallel magnetization, epoxy resin plastic packaging
Contour fan-shaped small magnet steel composition.
8. a kind of disc type outer rotor motor of axial magnetic flux stator water-cooling as claimed in claim 1, it is characterised in that：It is non-to drive
Moved end rotor assembly ro300 structure type, the structure type with drive end rotor assembly ro200 is essentially identical, anti-drive end
Flange st110 is provided with thread groove, coordinates with non-drive end shield ro304 and reaches helixseal effect.
9. a kind of disc type outer rotor motor of axial magnetic flux stator water-cooling as claimed in claim 1, it is characterised in that：Rotation
Transformer re400 is designed as magnetoresistance transformer, is taken up space to shorten axial dimension, by fixed rotation become stator and
Rotation becomes rotor, realizes accurate detection rotor-position signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710542668.2A CN107181368A (en) | 2017-07-05 | 2017-07-05 | A kind of disc type outer rotor motor of axial magnetic flux stator water-cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710542668.2A CN107181368A (en) | 2017-07-05 | 2017-07-05 | A kind of disc type outer rotor motor of axial magnetic flux stator water-cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107181368A true CN107181368A (en) | 2017-09-19 |
Family
ID=59845091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710542668.2A Pending CN107181368A (en) | 2017-07-05 | 2017-07-05 | A kind of disc type outer rotor motor of axial magnetic flux stator water-cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107181368A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109962584A (en) * | 2017-12-22 | 2019-07-02 | 深圳市乐丰科技有限公司 | Disc type electric machine and its manufacturing method |
| CN113162300A (en) * | 2021-04-28 | 2021-07-23 | 中国第一汽车股份有限公司 | Motor cooling system, motor and vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7898134B1 (en) * | 2009-12-31 | 2011-03-01 | Bill S. Shaw | Brushless disk DC motor |
| CN105703498A (en) * | 2016-04-22 | 2016-06-22 | 三门峡速达交通节能科技股份有限公司 | Stator oil-immersed circulating cooling structure of built-in disc type motor |
| CN105720712A (en) * | 2016-04-19 | 2016-06-29 | 北京康城科技有限公司 | Disk-type hub motor adopting stator liquid cooling and having rotor magnetic steel being embedded |
| CN206922594U (en) * | 2017-07-05 | 2018-01-23 | 深圳小象电动科技有限公司 | A kind of disc type outer rotor motor of axial magnetic flux stator water-cooling |
-
2017
- 2017-07-05 CN CN201710542668.2A patent/CN107181368A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7898134B1 (en) * | 2009-12-31 | 2011-03-01 | Bill S. Shaw | Brushless disk DC motor |
| CN105720712A (en) * | 2016-04-19 | 2016-06-29 | 北京康城科技有限公司 | Disk-type hub motor adopting stator liquid cooling and having rotor magnetic steel being embedded |
| CN105703498A (en) * | 2016-04-22 | 2016-06-22 | 三门峡速达交通节能科技股份有限公司 | Stator oil-immersed circulating cooling structure of built-in disc type motor |
| CN206922594U (en) * | 2017-07-05 | 2018-01-23 | 深圳小象电动科技有限公司 | A kind of disc type outer rotor motor of axial magnetic flux stator water-cooling |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109962584A (en) * | 2017-12-22 | 2019-07-02 | 深圳市乐丰科技有限公司 | Disc type electric machine and its manufacturing method |
| CN113162300A (en) * | 2021-04-28 | 2021-07-23 | 中国第一汽车股份有限公司 | Motor cooling system, motor and vehicle |
| CN113162300B (en) * | 2021-04-28 | 2023-04-14 | 中国第一汽车股份有限公司 | Motor cooling system, motor and vehicle |
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