CN107994710A - Three-phase permanent is brushless, and electricity changes gear external rotor electric machine - Google Patents
Three-phase permanent is brushless, and electricity changes gear external rotor electric machine Download PDFInfo
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- CN107994710A CN107994710A CN201711344385.3A CN201711344385A CN107994710A CN 107994710 A CN107994710 A CN 107994710A CN 201711344385 A CN201711344385 A CN 201711344385A CN 107994710 A CN107994710 A CN 107994710A
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- electric machine
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- 230000005611 electricity Effects 0.000 title claims abstract description 59
- 238000004804 winding Methods 0.000 claims abstract description 126
- 238000006243 chemical reaction Methods 0.000 claims abstract description 54
- 239000002826 coolant Substances 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 4
- 230000009347 mechanical transmission Effects 0.000 abstract 1
- 229910001172 neodymium magnet Inorganic materials 0.000 abstract 1
- 230000001131 transforming effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
- H02P25/188—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays wherein the motor windings are switched from series to parallel or vice versa to control speed or torque
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- 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 brushless electricity variable block outer rotor motor of three-phase permanent, i.e. wheel hub motor.Mainly integrated high stable magnetic latching relay, brake disc, motor reel, rotary transformer and end cap by motor stator, motor outer rotor, Nd-Fe-B permanent magnet, liquid-cooled jacket, multiple contact electrode and formed.Its maximum feature is that every phase winding of its stator is made of several winding elements, and high stable magnetic latching relay winding element is integrated by multiple contact electrode and carries out series and parallel conversion to realize in a manner of electric appliance to motor progress transforming gear, possess the machinery and electric property of two or three motor with a motor, achieve the purpose that big startup power is huge, starting current is small and high-speed cruising.Because not having mechanical speed change component, the parts of motor greatly reduce, and reliability is high, efficiency increase.In addition, installation liquid-cooled jacket in motor stator, can effectively reduce motor temperature rise.The motor is directly installed on wheel, eliminates mechanical transmission mechanism, simplifies vehicle structure, reduces car weight, adds vehicle free space, and a brand-new road is opened for electric vehicle.
Description
Technical field
The present invention relates to a kind of power part of the driven by power of electric automobile, can especially be installed on practical on wheel
Three-phase permanent is brushless, and electricity changes gear external rotor electric machine.
Background technology
At present, the driven by power mode of known electric automobile substantially has two classes：One kind be motor by with gearbox
Connect and drive transmission shaft to drive electric automobile, because the friction loss of gearbox, transmission shaft reduces the efficiency of electric automobile, together
When also increase car weight and occupy in-car space, another kind of is that motor is directly installed on wheel, and this motor is
External rotor electric machine or electric wheel hub, electric wheel hub is because without using gearbox and transmission shaft, improving the efficiency of vehicle, weight subtracts
Gently, interior space has been saved, advantage is obvious, but because the design feature of traditional electric wheel hub causes it efficiently to start and high-speed cruising
Both cannot take into account, and present solution to this problem has two kinds substantially：A kind of is the different circles in the stator coil of motor
Tap on number, by adjusting different taps to adapt to the different conditions needs of electric automobile starting and high-speed cruising, its deficiency
Part is that the coil utilization rate of motor is not high, conducting wire dosage is big, motor volume is big, poor practicability；Another kind is that motor is applied
The voltage of different value, such as：Described in patent 2L200420076813, though this method can solve the effective of electric automobile and start and height
The problem of speed operation, but the device for obtaining the supply voltage of a variety of different values be difficult to it is practical because to obtain a variety of different values
Supply voltage to pass through power inverter, the loss of power inverter reduces electric energy efficiency, in addition electric automobile need it is several
It is kilowatt very high-leveled and difficult in being easily accepted by a user to tens kilowatts of inverter cost.
The content of the invention
Efficiently started and high-speed cruising ability, this hair to overcome the shortcomings of that existing hub motor for electric automobile is taken into account
It is bright to provide a kind of three-phase permanent used for electric vehicle brushless electricity conversion gear external rotor electric machine, using electric appliance variable block method, the three-phase
Brushless, permanently electricity conversion gear external rotor electric machine can not only significant increase electric automobile starting performance, but also normal fortune can be obtained
High speed during row.
Motor by shell, magnet steel, outer rotor, water-cooled stator, motor shaft, bearing, end cap, brake disc, rotary transformer and
Electrical switch forms, and the winding of motor stator is made of phase winding unit, and multiple identical phase winding lists are wound with per phase winding
Member, uses electrical switch serial or parallel connection between phase winding unit, coolant jacket is set in stator.
Phase winding unit number of the motor stator per phase is identical, number of total coils is identical, insulation linear diameter is identical, coil total cross section
It is identical, the phase winding unit coil of same phase is installed in each motor slot, insulating layer is installed between coil.
Electrical switch used integrates high stable magnetic latching relay for multiple contact electrode, includes three groups of two-way contact electrodes
With three groups of unidirectional contact electrodes, nine contact conductors are drawn altogether.
Multiple contact electrode integrates high stable magnetic latching relay between the coolant jacket and motor shaft rib of stator
In space, and it is fixed on axis rib.
When multiple contact electrode high stable magnetic latching relay acts, actuation time is not more than 10ms, motor power during action
Power-off.
The first brushless electricity conversion gear external rotor electric machine of two gear three-phase permanents, phase winding of its motor stator per phase winding
Unit number is two, and one when blocking up dynamic, two phase winding units series connection, and during two gear operations, two phase winding units are in parallel, installation
One multiple contact electrode high stable magnetic latching relay.
The second two brushless electricity of gear three-phase permanents change gear external rotor electric machine, phase winding of its motor stator per phase winding
Unit number is three, and one when blocking up dynamic, three phase winding units series connection, and during two gear operations, three phase winding units are in parallel, installation
Two multiple contact electrode high stable magnetic latching relays..
Three gear three-phase permanents are brushless electricity conversion gear external rotor electric machine, phase winding unit number of its motor stator per phase winding
It it is four, one when blocking up dynamic, and four phase winding units series connection, when two gears accelerate, simultaneously, three gears are high for four strings of phase winding units two two
During speed operation, four phase winding units are all in parallel, install three multiple contact electrode high stable magnetic latching relays.
Installation coolant jacket in motor stator, coolant jacket is a thick-walled sleeve shape, its outer wall is connected with stator core,
Inner wall is connected with axis rib, there is fluid flow paths between inside and outside wall, and the partition plate in guided liquid-flow direction is set in passage.
Principle and benefit analysis：According to the fundamental formular of direct current generator：I=(V-E)/R, wherein I are current of electric, and V is
Supply voltage, E are motor reaction gesture, and R is electric motor resistance, in the moment that electric motor starting starts, because motor remains static, its
Reaction gesture E for 0. at this time I=(V-0)/R it is therefore seen that I is very big, be easy to cause winding, and electric efficiency is very low, startup power
Square is small, therefore takes the method that multiple winding elements are connected, and can increase the R values of electric motor resistance several fold, at the same each around
The voltage that group unit is born, which also drops, to be several times lower than, and avoids the instantaneous of electric motor starting and produces dangerous high current, and improves motor
Cranking performance rating, ensures the reliable starting of motor.By the parallel connection of phase winding unit coil after electric motor starting, phase winding list can be made
Obtained on first coil at double or several times of voltage, while the part when motor all-in resistance after parallel connection is also reduced to starting, by
Formula I=(V-E)/R finds out that the voltage increase and R on phase winding unit are reduced, and cause the increase of I, then by three phase electric machine
Prime power formula P=√ 3IV and relational expression P ∝ V2Find out, the output power of motor adds, if 4 phase winding units
It is in parallel, because supply voltage is constant, then 4 times when voltage added on each phase winding unit is electric motor starting, according to P ∝ V2
Relation, the output power of motor increases to 42=16 times, similarly, if 6 phase winding units are in parallel, its output power of motor will
Increase by 62=36 times, the increase of the result that power is substantially improved necessarily motor torque and rotating speed, because motor torque T ∝ P.
Serial or parallel connection between phase winding unit integrates connection or the pass of high stable magnetic latching relay contact by multiple contact electrode
It is disconnected to realize, and motor is divided into several gears by the process for starting, accelerating to full speed, by self shifter governor to corresponding more
Contact electrode integrates high stable magnetic latching relay and is controlled, and realizes automatic shifting.Multiple contact electrode integrates high stable magnetic guarantor
When holding the actuating of relay, the power supply on electric machine controller cut-out motor, makes electric multiple contact electrode integrate high stable magnetic and keeps relay
No-spark produces when device acts, and ensures that multiple contact electrode integrates the reliability service of high stable magnetic latching relay.Multiple contact electrode
Integrated high stable magnetic latching relay is installed in motor stator, and three phase electric machine power cord only has 3, and motor production is easy.
The invention has the advantages that in the case where the supply voltage value of input motor is constant, can make to be added in motor
Voltage on phase winding unit is at double down to large-scope change several fold, so that motor is started, accelerated down to full speed running
When produce corresponding electric current, torque and power, a motor has the machinery and electric property of multiple electric motors, and realizing well can
By starting require different from high-speed cruising.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the winding that the brushless electricity conversion gear external rotor electric machine one embodiment two of three-phase permanent of the present invention keeps off motor
One gear state elementary diagram.
Fig. 2 is the winding that the brushless electricity conversion gear external rotor electric machine one embodiment two of three-phase permanent of the present invention keeps off motor
One gear state Equivalent conjunction figure.
Fig. 3 is the winding that the brushless electricity conversion gear external rotor electric machine one embodiment two of three-phase permanent of the present invention keeps off motor
Two gear state elementary diagrams.
Fig. 4 is the winding that the brushless electricity conversion gear external rotor electric machine one embodiment two of three-phase permanent of the present invention keeps off motor
Two gear state Equivalent conjunction figures.
Fig. 5 is the winding that brushless electricity conversion gear second embodiment two of external rotor electric machine of three-phase permanent of the present invention keeps off motor
One gear state elementary diagram.
Fig. 6 is the winding that brushless electricity conversion gear second embodiment two of external rotor electric machine of three-phase permanent of the present invention keeps off motor
One gear state Equivalent conjunction figure.
Fig. 7 is the winding that brushless electricity conversion gear second embodiment two of external rotor electric machine of three-phase permanent of the present invention keeps off motor
Two gear state elementary diagrams.
Fig. 8 is the winding that brushless electricity conversion gear second embodiment two of external rotor electric machine of three-phase permanent of the present invention keeps off motor
Two gear state Equivalent conjunction figures.
Fig. 9 is the winding that brushless electricity conversion gear the 3rd embodiment three of external rotor electric machine of three-phase permanent of the present invention keeps off motor
One gear state elementary diagram.
Figure 10 be brushless electricity conversion the 3rd embodiment three of gear external rotor electric machine of three-phase permanent of the present invention keep off motor around
The gear state Equivalent conjunction figure of group one.
Figure 11 be brushless electricity conversion the 3rd embodiment three of gear external rotor electric machine of three-phase permanent of the present invention keep off motor around
The gear state elementary diagram of group two.
Figure 12 be brushless electricity conversion the 3rd embodiment three of gear external rotor electric machine of three-phase permanent of the present invention keep off motor around
Two grades of state Equivalent conjunction figures of group.
Figure 13 be brushless electricity conversion the 3rd embodiment three of gear external rotor electric machine of three-phase permanent of the present invention keep off motor around
The gear state elementary diagram of group three.
Figure 14 be brushless electricity conversion the 3rd embodiment three of gear external rotor electric machine of three-phase permanent of the present invention keep off motor around
The gear state Equivalent conjunction figure of group three.
Figure 15 is the first arrangement of the brushless electricity conversion gear external rotor electric machine phase winding unit of three-phase permanent of the present invention
Schematic diagram.
Figure 16 is the first arrangement of the brushless electricity conversion gear external rotor electric machine phase winding unit of three-phase permanent of the present invention
Impedance adjustment schematic diagram figure.
Figure 17 is brushless electricity conversion gear external rotor electric machine phase winding second of the arrangement of unit of three-phase permanent of the present invention
Schematic diagram.
Figure 18 is the brushless electricity conversion gear external rotor electric machine front view of three-phase permanent of the present invention.
Figure 19 is the brushless electricity conversion gear external rotor electric machine left side view of three-phase permanent of the present invention.
Figure 20 is the brushless electricity conversion gear external rotor electric machine one embodiment A-A section signals of three-phase permanent of the present invention
Figure.
Figure 21 is three-phase permanent of the present invention second embodiment A-A sections signal of brushless electricity conversion gear external rotor electric machine
Figure.
Figure 22 is three-phase permanent of the present invention the 3rd embodiment A-A sections signal of brushless electricity conversion gear external rotor electric machine
Figure.
Figure 23 is the B-B diagrammatic cross-sections of the brushless electricity conversion gear external rotor electric machine of three-phase permanent of the present invention.
Figure 24 is the brushless electricity conversion gear external rotor electric machine liquid coolant jacket expansion profile of three-phase permanent of the present invention.
1, motor casing in figure, 2-1, drive end bearing bracket, 2-2, rear end cap, 3, motor shaft-cup, 4, installation screw, 5, stator
Iron core, 6, stator coil, 7, magnet steel, 8, motor reel, 9, brake disc, 10, strengthen shaft end, 11, stator slot, 12, MK fix spiral shell
Silk, 13, axis rib, 14, liquid coolant jacket, 15, liquid inlet head, 16, liqiud outlet head, 17, drive end bearing bracket bearing, 18, bearing of rear end cover, 19, rotation
Change depressor, 20, rotary transformer lead, 21 end cap screws, 22, liquid stream partition plate.
The u1 marked on coil is first phase winding unit of the U phases of motor, and u2 is second of the U phases of motor
Phase winding unit, u3 are the 3rd phase winding units of the U phases of motor, and u4 is the 4th phase winding unit of motor U phases.
And so on, v1, v2, v3 and v4 are the first, second, third and fourth phase winding unit of motor V phases respectively；1 w1、
W2, w3 and w4 are then the first, second, third and fourth phase winding unit of motor W phases respectively.Phase winding unit one in figure
The dot at end is the mark of coil head end, and the other end of coil is tail end.MK, MK1, MK2 and MK3 are that multiple contact electrode integrates
High stable magnetic latching relay.
Embodiment
In fig. 1 and 2, multiple contact electrode integrate the contact electrode of high stable magnetic latching relay (MK) 1. with 2., 5.
With 6., 8. with 9. contacting, contact electrode 1. with 4., 5. with 4., 8. with 4. disconnecting, i.e. the head of the tail end of phase winding unit u1 and u2
The head end of end connection, the tail end of phase winding unit v1 and v2 connect, phase winding unit w1, tail end and the head end of w2 connect, u2,
The tail end of v2 and w2 links together, and realizes that phase winding unit is connected, and is the brushless electricity conversion gear external rotor electric of three-phase permanent
Machine one embodiment two keeps off a gear state of motor.
In figs. 3 and 4, multiple contact electrode integrate the contact electrode of high stable magnetic latching relay (MK) 3. with 2., 7.
With 6., 10. with 9. contacting, contact electrode 1. with 4., 5. with 4., 8. with 4. contacting, i.e. the head end of u2, v2 and w2 phase winding unit
It is connected with power end U, V and M, the tail end of phase winding unit u1, v1 and w1 link together, and the tail end of u2, v2 and w2 are connected to
Together.Realize phase winding unit connection in parallel, be the brushless electricity conversion gear external rotor electric machine one embodiment two of three-phase permanent
Keep off two gear states of motor
In fig. 5 and fig., 1. multiple contact electrode integrates high stable magnetic latching relay (MK1) and (MK2) contact electrode
With 2., 5. with 6., 8. with 9. contacting, the contact electrode of (MK1) and (MK2) 1. with 4., 5. with 4., 8. with 4. disconnecting, i.e., mutually around
The tail end of group unit u1 and the head end of u2 connect, and the tail end of phase winding unit u2 and the head end of u3 connect, phase winding unit v1's
The head end of tail end and v2 connect, and the head end of the tail end of phase winding unit v2 and v3 connect, the tail end of phase winding unit w1 and w2's
Head end connects, and the head end of the tail end of phase winding unit w2 and w3 connect, and the tail end of u3, v3 and w3 link together, realize mutually around
Group unit series connection, is the gear shape that brushless electricity conversion gear second embodiment two of external rotor electric machine of three-phase permanent keeps off motor
State.
In figures 7 and 8,3. multiple contact electrode integrates high stable magnetic latching relay (MK1) and (MK2) contact electrode
With 2., 7. with 6., 10. with 9. contacting, contact electrode 1. with 4., 5. with 4., 8. with 4. contacting, i.e. phase winding unit u2, v2, w2,
The head end of u3, v3 and w3 are connected with power end U, V and M, and the tail end of phase winding unit u1, v1 and w1 link together, u2, v2,
The tail end of w2 links together, and the tail end of u3, v3 and w3 link together, and realizes phase winding unit connection in parallel, as three-phase forever
Magnetic is brushless, and electricity conversion gear second embodiment two of external rotor electric machine keeps off two gear states of motor.
In figure 9 and in figure 10, multiple contact electrode integrates touching for high stable magnetic latching relay (MK1), (MK2) and (MK3)
Tip electrode 1. with 2., 5. with 6., 8. with 9. contacting, contact electrode 1. with 4., 5. with 4., 8. with 4. disconnecting, i.e. phase winding unit
The head end of the tail end of u1 and u2 connect, and the tail end of phase winding unit u2 and the head end of u3 connect, the tail end of phase winding unit u3 with
The head end connection of u4, the tail end of phase winding unit v1 and the head end of v2 connect, and the tail end of phase winding unit v2 and the head end of v3 connect
Connect, the tail end of phase winding unit v3 and the head end of v4 connect, and the tail end of phase winding unit w1 and the head end of w2 connect, phase winding list
The tail end of first w2 and the head end of w3 connect, and the tail end of phase winding unit w3 and the head end of w4 connect, and u4, v4 are connected with the tail end of w4
Together, realize that phase winding unit is connected, be brushless electricity conversion gear the 3rd embodiment three of external rotor electric machine of three-phase permanent
Keep off a gear state of motor.
In Figure 11 and Figure 12, multiple contact electrode integrates high stable magnetic latching relay (MK1) and the contact electrode of (MK3)
1. with 2., 5. with 6., 8. with 9. contacting, contact electrode 1. with 4., 5. with 4., 8. with 4. disconnecting, the contact electrode of (MK2) 3. with
2., 7. with 6., 10. with 9. contacting, contact electrode 1. with 4., 5. with 4., 8. with 4. contacting, i.e., the tail end of phase winding unit u1 with
The head end connection of u2, the tail end of phase winding unit u3 and the head end of u4 connect, and the tail end of phase winding unit v1 and the head end of v2 connect
Connect, the tail end of phase winding unit v3 and the head end of v4 connect, and the tail end of phase winding unit w1 and the head end of w2 connect, phase winding list
The tail end of first w3 and the head end of w4 connect, and the tail end of u2, v2 and w2 link together, and the tail end of u4, v4 and w4 are connected to one
Rise, realize phase winding unit string and Hybrid connections, be brushless the 3rd implementation of electricity conversion gear external rotor electric machine of three-phase permanent
Example three keeps off two gear states of motor.
In figs. 13 and 14, multiple contact electrode integrates touching for high stable magnetic latching relay (MK1), (MK2) and (MK3)
Tip electrode 1. with 2., 5. with 6., 8. with 9. contacting, contact electrode 1. with 4., 5. with 4., 8. with 4. disconnecting, i.e. phase winding unit
I.e. the head end of phase winding unit u2, v2, w2, u3, v3, w3, u4, v4 and w4 are connected with power end U, V and M, the tail of u2, v2, w2
End links together, and the tail end of u3, v3, w3 link together, and the tail end of u4, v4 and w4 link together, and realizes phase winding list
Member string and Hybrid connections, are that brushless electricity conversion gear the 3rd embodiment three of external rotor electric machine of three-phase permanent keeps off the three of motor
Gear state.
In fig.15, the phase winding unit of motor motor radially coiling successively, i.e., first around u1, further around u2, u3 and
u4；First around v1, further around v2, v3 and v4；First around w1, further around w2, w3 and w4.The figure has only drawn two phase winding unit u1, and u2；
V1, and v2；W1, and w2, set insulating layer between phase winding unit, which has only drawn per the electricity mutually with two phase winding units
Machine is around group picture.
In figure 16, each phase winding unit of motor is divided into two parts, i.e. u1 etc. by the number of turn and divides position u11 and u12, u2
Decile position u21 and u22, v1 etc. divide position v11 and v12, v2 etc. to divide position v21 and v22, w1 etc. to divide position w11 and w12, w2 etc. to divide position
W21 and w22；Wherein one phase winding unit of the head of the tail of u11 and u22 connection composition, the tail of u21 are connected composition one with u12
A phase winding unit, the tail of v11 and head connection one phase winding unit of composition of v22, the tail of v21 are connected composition one with v12
A phase winding unit；The tail of w11 and head connection one phase winding unit of composition of w22, the tail of w21 are connected composition one with w12
A phase winding unit, the interaction compensation of phase winding unit u1 and u2, v1 and v2, w1 and w2 parameter differences, i.e. impedance are realized with this
Adjustment, similarly, can also realize that every phase interacts benefit for three phase winding unit u1 and u3, v1 and v3, w1 and the parameter differences of w3
Repay；It is four phase winding unit u1 and the parameter differences of u4, u2 and u3, v1 and v4, v2 and v3, w1 and w4, w2 and w3 per phase
Interaction compensation.
In fig. 17, phase winding unit along motor stator core circumference along individual layer coiling of the motor per phase, phase winding unit
U1, u2, u3, u4 are uniformly distributed along motor stator core circumference, and v1, v2, v3 and v4 are uniform along motor stator core circumference
Distribution w1, w2, w3 and w4 are uniformly distributed along motor stator core circumference, which has only drawn has two phase winding lists per phase
The machine winding figure of member.
In Figure 18 and Figure 19, drive end bearing bracket (2-1) installs spiral shell towards vehicle outside, rear end cap (2-2) towards vehicle interior side
Silk (4) is installed together with wheel, is strengthened shaft end (10) and is connected with vehicle spindle, end cap screw (21) fixes electric motor end cap.
In Figure 20, Figure 21 and Figure 22, shell (1) and magnet steel (7) are rotors, and motor stator core (5) is provided with electricity
Trough (11), the stator coil (6) of the interior coiling phase winding unit of motor slot (11), motor stator core (5) inner side are cooled down with liquid
It is assembled together on the outside of set (14), is connected on the inside of liquid coolant jacket (14) with axis rib (13), axis rib (13) is connected with motor shaft (8),
MK is fixed with MK fixed screws (12) on axis rib (13), one end of liquid coolant jacket (14) picks out liquid inlet head (15) and liqiud outlet head
(16), Figure 20 installs a MK, is the profile of the brushless electricity conversion gear external rotor electric machine one embodiment of three-phase permanent, schemes
21 two MK of installation, are the profiles of brushless electricity conversion gear second embodiment of external rotor electric machine of three-phase permanent, and Figure 22 is installed
Three MK, be three-phase permanent it is brushless electricity conversion gear the 3rd embodiment of external rotor electric machine profile, above-mentioned Figure 20, Tu21He
Figure 22 only depicts the motor stator of 12 grooves, can also use the motor stator of the slot numbers such as 24 grooves, 36 grooves.
In (23) are schemed, motor casing (1) interior mounting magnetic steel (7), stator coil (6) is installed in iron core (5), motor
With being assembled together on the outside of liquid coolant jacket (14) on the inside of stator core (5), it is connected on the inside of liquid coolant jacket (14) with axis rib (13), axis
Rib (13) is connected with motor shaft (8), fixes MK with MK fixed screws (12) on axis rib (13), one end of liquid coolant jacket (14) picks out
Liquid inlet head (15) and liqiud outlet head (16), power supply U (V, W) are connected by strengthening the hole of shaft end (10) with stator coil (6), stator line
Circle (6) is connected with MK, and motor casing (1), installation screw (4), drive end bearing bracket bearing (17), rotation are installed on drive end bearing bracket (2-1)
The disk of transformer (19), and motor shaft-cup (3)；Brake disc (9), bearing of rear end cover (18), end are installed on rear end cap (2-2)
The fixed end cap (2-1) and (2-2) of lid screw (21), the centre bore of rotary transformer lead (20) motor reel (8) are drawn, feed liquor
Head (15) is drawn with liqiud outlet head (16) by strengthening shaft end (10), is strengthened shaft end (10) and is installed together with motor reel.
In (24) are schemed, liquid coolant jacket (14) is by jacket wall, liquid inlet head (15), liqiud outlet head (16) and liquid stream partition plate (22) group
Into coolant is flowed into by liquid inlet head (15), is circulated and is flowed out from liqiud outlet head (16), efficiently takes the temperature of stator out of, reach reduction
The purpose of motor stator temperature.
Claims (9)
1. a kind of three-phase permanent is brushless electricity conversion gear external rotor electric machine, by motor housing, outer rotor, water-cooled stator, motor shaft,
Bearing, end cap, brake disc, rotary transformer and electrical switch composition, it is characterized in that：The winding of motor stator is by phase winding list
Member composition, is wound with multiple identical phase winding units per phase winding, electrical switch serial or parallel connection is used between phase winding unit,
Coolant jacket is set in stator.
2. the brushless electricity conversion gear external rotor electric machine of three-phase permanent according to claim 1, it is characterized in that：Motor stator is every
The phase winding unit number of phase is identical, number of total coils is identical, insulation linear diameter is identical, coil total cross section is identical, in each motor slot
The phase winding unit coil of same phase is installed, insulating layer is installed between coil.
3. the brushless electricity conversion gear external rotor electric machine of three-phase permanent according to claim 1, it is characterized in that：Institute's electricity consumption conversion
Switch and integrate high stable magnetic latching relay for multiple contact electrode, include three groups of two-way contact electrodes and three groups of unidirectional contact electricity
Pole, draws nine contact conductors altogether.
4. the brushless electricity conversion gear external rotor electric machine of three-phase permanent according to claim 6, it is characterized in that：Multiple contact electrode
Integrated high stable magnetic latching relay is installed in the space between the coolant jacket and motor shaft rib of stator, and is fixed on axis rib
On.
5. the brushless electricity conversion gear external rotor electric machine of three-phase permanent according to claim 6, it is characterized in that：Multiple contact electrode
When high stable magnetic latching relay acts, actuation time be not more than 10ms, motor power power-off during action.
6. the brushless electricity conversion gear external rotor electric machine of three-phase permanent according to right wants 1 and 3, it is characterized in that：The first two
The brushless electricity conversion gear external rotor electric machine of three-phase permanent is kept off, phase winding unit number of its motor stator per phase winding is two, one
When blocking up dynamic, two phase winding unit series connection, when two gears are run, two phase winding units are in parallel, install a multiple contact electrode
High stable magnetic latching relay.
7. the brushless electricity conversion gear external rotor electric machine of three-phase permanent according to right wants 1 and 3, it is characterized in that：Second two
The brushless electricity conversion gear external rotor electric machine of three-phase permanent is kept off, phase winding unit number of its motor stator per phase winding is three, one
When blocking up dynamic, three phase winding unit series connection, when two gears are run, three phase winding units are in parallel, install two multiple contact electrodes
High stable magnetic latching relay..
8. the brushless electricity conversion gear external rotor electric machine of three-phase permanent according to right wants 1 and 3, it is characterized in that：Three gear three-phases
Brushless, permanently electricity conversion gear external rotor electric machine, phase winding unit number of its motor stator per phase winding is four, one block up it is dynamic
When, the series connection of four phase winding units, when two gears accelerate, four strings of phase winding units two two simultaneously, during three gear high-speed cruisings, four phases
Winding element is all in parallel, installs three multiple contact electrode high stable magnetic latching relays.
9. the brushless electricity conversion gear external rotor electric machine of three-phase permanent according to claim 1, it is characterized in that：In motor stator
Coolant jacket is installed, coolant jacket is a thick-walled sleeve shape, its outer wall is connected with stator core, and inner wall is connected with axis rib, interior
There are fluid flow paths between outer wall, the partition plate in guided liquid-flow direction is set in passage.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711344385.3A CN107994710A (en) | 2017-12-15 | 2017-12-15 | Three-phase permanent is brushless, and electricity changes gear external rotor electric machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711344385.3A CN107994710A (en) | 2017-12-15 | 2017-12-15 | Three-phase permanent is brushless, and electricity changes gear external rotor electric machine |
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| CN107994710A true CN107994710A (en) | 2018-05-04 |
Family
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| CN201711344385.3A Pending CN107994710A (en) | 2017-12-15 | 2017-12-15 | Three-phase permanent is brushless, and electricity changes gear external rotor electric machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117154996A (en) * | 2023-10-31 | 2023-12-01 | 江苏中工高端装备研究院有限公司 | Explosion-proof type self-dedusting type semi-direct-drive permanent magnet motor |
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| JPH1053131A (en) * | 1996-08-08 | 1998-02-24 | Railway Technical Res Inst | Wheel integral type electric motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117154996A (en) * | 2023-10-31 | 2023-12-01 | 江苏中工高端装备研究院有限公司 | Explosion-proof type self-dedusting type semi-direct-drive permanent magnet motor |
| CN117154996B (en) * | 2023-10-31 | 2024-01-23 | 江苏中工高端装备研究院有限公司 | Explosion-proof type self-dedusting type semi-direct-drive permanent magnet motor |
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