CN206922594U - 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
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- CN206922594U CN206922594U CN201720808065.8U CN201720808065U CN206922594U CN 206922594 U CN206922594 U CN 206922594U CN 201720808065 U CN201720808065 U CN 201720808065U CN 206922594 U CN206922594 U CN 206922594U
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Abstract
A kind of disc type outer rotor motor of axial magnetic flux stator water-cooling of the utility model, 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；The utility model heat convection efficiency high, heat exchange area is big, heat-transfer rate is fast, the complexity for reducing gear case assembly power attenuation and system, the efficiency and maintainability that improve 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
Automotive electric motors are the utility model is related to, are pure electronic, hybrid vehicle drive motors by it.
Background technology
It is mostly the alternating-current synchronous of radial flux in the motor that pure electric automobile, hybrid vehicle Qu Donglingyu are applied
Motor, direct current generator or AC asynchronous motor, because conventional radial motor axial direction installation dimension is larger, power density and
Efficiency is all relatively low, is limited to the applications that electric automobile domain level constraints requirement is strict, 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 protection level requirements are 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
The purpose of this utility model is that providing one kind has heat convection efficiency high, and heat exchange area is big, and heat-transfer rate is fast
A kind of axial magnetic flux stator water-cooling disc type outer rotor motor.
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 uses
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 is by high magnetic permeability, low-loss, ultra-thin silicon steel sheet are radially superposed and
Into；Stator, which uses, 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 uses 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 carried out
Anodic oxidation blackening process.
Magnet steel ro201 in drive end rotor assembly ro200, by polylith using N38EH materials make through parallel magnetization,
The small magnet steel composition of contour sector 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.
The beneficial effects of the utility model：
Due to being designed using disc-type outer rotor motor heat management：Actively reduce loss and passive reduce is lost.
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 are designed using 3 sections of secter pats, and carry out epoxy coating to block vortex
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 with drop
The measures such as low high-frequency vortex copper loss.
It is passive to reduce loss aspect, 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, the complexity for reducing gear case assembly power attenuation and system, the efficiency and maintainability for improving system.It is main
To be used as traction power, harsh is required to space, reliability, high power density, high efficiency, low noise etc., be suitable for it is pure it is electronic,
The fields such as hybrid vehicle are as the straight application driven, match differential mechanism or gearbox.
Brief description of the drawings
Fig. 1 is parts detonation configuration figure of the present utility model.
Fig. 2 is overall sectional structure chart of the present utility model.
Fig. 3 is magnetic structure figure of the present utility model.
Fig. 4 is stator module sectional structure chart of the present utility model.
Fig. 5 is stator module detonation configuration figure of the present utility model.
Fig. 6 is drive end rotor assembly sectional structure chart of the present utility model.
Fig. 7 is drive end rotor assembly detonation configuration figure of the present utility model.
Fig. 8 is anti-drive end rotor assembly sectional structure chart of the present utility model.
Fig. 9 is anti-drive end rotor assembly detonation configuration figure of the present utility model.
Figure 10 is rotary transformer component sectional structure chart of the present utility model.
Figure 11 is rotary transformer component detonation configuration figure of the present utility model.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings.
Operation principle of the present utility model is：What the external inverters of stator winding st114 in stator module st100 exported
Three-phase alternating current, produce circular rotating field, magnetic field intercepts stator winding st114 caused by magnet steel ro201, magnet steel ro301, production
Raw induced electromotive force, the circular rotating field of stator winding st114 synthesis drive permanent magnetism caused by magnet steel ro201, magnet steel ro301
Field synchronous rotates, and produces electromagnetic torque.Caused heat, mainly passes through stator ring in disc-type outer rotor motor running
Circulating cooling liquid in hub st108 is taken away, and is conducted as a result of stator wheel hub st108 coolants cooling+epoxy resin plastic packaging
Hot scheme, disc-type outer rotor motor can bear bigger overload, possess bigger power density and torque density.
The utility model is a kind of axial excitation flux electric machine, can be driven with electric motor mode, can also generator mode
Carry out energy regenerating use, 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 type structure, heat management are cooled down using stator coolant and combine radiating mode with stator winding epoxy resin plastic packaging；Including fixed
Sub-component st100, drive end rotor assembly ro200, anti-drive end rotor assembly ro300, rotary transformer component re400.It is fixed
Sub-component st100 is located at drive end rotor assembly ro200 and anti-drive end rotor assembly ro300 centre, drive end rotor set
Positioned between part 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 by holding screw fr501 tightenings connect into one rotation it is whole
Body, stator module st100 are deep by the drive end in rotor assembly ro200 as stationary part, stator wheel hub st108 therein
Ditch ball bearing ro211, anti-drive end angular contact ball bearing ro210 carry out spacing fixation, the flange st110 in stator module st100
Fixed on automobile chassis, facilitate outlet and injection coolant.Stator module st100 is relative with drive end rotor ro300's
Movement position, helixseal is carried out by the thread groove on flange st110.Rotary transformer re400 rotation becomes rotor and passed through
Holding screw re407 is fixed on the main shaft ro208 that drive end rotor assembly ro200 is included, and it is solid by being cold-pressed that rotation becomes stator
On the fixed flange st110 included to stator module st100, 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
Nail st120a is fixed to stator wheel hub st108 with screw st120b, interior end ring st106a and interior end ring st106b, screw st116
Gusset on, form 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 compresses, and ensure that stacking factor so that stress surface is more uniform.Stator core st101 is set
Stator slot wedge st113a, slot wedge st113b is equipped with to be used to compress stator winding st114.
Cover plate st107 and cover plate st109 is welded on stator wheel hub st108, forms the cavity of a sealing, 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.
Heat caused by stator winding st114, stator core st101, pass through stator winding st114 inner ends institute plastic packaging
Epoxy resin, the stator wheel hub st108 of aluminum alloy material is transmitted to, being then machined with snake type by stator wheel hub st108 cools down
Flowing coolant in water channel is taken away.This design, increase the contact area of dissipation of main pyrotoxin, significantly improve stator and dissipate
Thermal effect.
Drive end rotor assembly ro200, magnet steel surface-mount type structure is designed to, 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, its tangential, radial motion, such as Fig. 8 is limited, 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, become stator winding re404 embedded with rotation thereon, rotation becomes stator core re401 by cold pressing, with flange st110
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, becomes stator for adjusting to revolve
The position of circumferencial direction, it is fixed to using screw re410 on the flange st110 in stator module st100, 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 utility model, various replacements or equally realization can substitute this shown and described
A little specific implementation examples.
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 use 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, coordinated in a manner of the proximal pole groove of the groove of 12 pole 10 straight drive, matching differential mechanism or
Match reduction box work.
A kind of 2. 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.
A kind of 3. 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 uses centralized Winding Design, teeth portion winding stator winding st114；Stator winding st114 is using modeling
Seal epoxy encapsulation.
A kind of 4. 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.
A kind of 5. 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.
A kind of 6. disc type outer rotor motor of axial magnetic flux stator water-cooling as claimed in claim 1, it is characterised in that：Driving
End end cap ro202, support fr500, non-drive end shield ro310 use 7075 series alloys, and carry out anodic oxidation nigrescence
Processing.
A kind of 7. 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 sector small magnet steel composition.
A kind of 8. disc type outer rotor motor of axial magnetic flux stator water-cooling as claimed in claim 1, it is characterised in that：Non- drive
Moved end rotor assembly ro300 structure type, anti-drive end essentially identical with drive end rotor assembly ro200 structure type
Flange st110 is provided with thread groove, coordinates with non-drive end shield ro304 and reaches helixseal effect.
A kind of 9. 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 it is fixed revolve become stator and
Rotation becomes rotor, realizes accurate detection rotor-position signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720808065.8U CN206922594U (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 |
|---|---|---|---|
| CN201720808065.8U CN206922594U (en) | 2017-07-05 | 2017-07-05 | A kind of disc type outer rotor motor of axial magnetic flux stator water-cooling |
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| Publication Number | Publication Date |
|---|---|
| CN206922594U true CN206922594U (en) | 2018-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720808065.8U Active CN206922594U (en) | 2017-07-05 | 2017-07-05 | A kind of disc type outer rotor motor of axial magnetic flux stator water-cooling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181368A (en) * | 2017-07-05 | 2017-09-19 | 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 CN201720808065.8U patent/CN206922594U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181368A (en) * | 2017-07-05 | 2017-09-19 | 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 |
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