CN110504774A - Rotor with end disk - Google Patents
Rotor with end disk Download PDFInfo
- Publication number
- CN110504774A CN110504774A CN201910411517.2A CN201910411517A CN110504774A CN 110504774 A CN110504774 A CN 110504774A CN 201910411517 A CN201910411517 A CN 201910411517A CN 110504774 A CN110504774 A CN 110504774A
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- CN
- China
- Prior art keywords
- end disk
- disk component
- coolant channel
- section
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
A kind of rotor (20) has axis (30), rotor core (34) and at least one end disk (51,52).Coolant channel (40) are formed in the rotor (20), so as to realize the coolant flow of coolant (45) by the coolant channel (40), the coolant channel (40) has the first section (41), which at least partially extends in the rotor core (34)；The coolant channel (40) has the second section (41), which at least partially extends in the axis (30)；At least one end disk (51,52) there is first end disk component (61) and second end disk component (71), the first end disk component (61) is at least partially disposed between the rotor core (34) and the second end disk component (71), and the first end disk component (61) and the second end disk component (71) are adjacent to each other；And the coolant channel (40) has third section (43,44), which is at least partially formed jointly and between the two end plate components by the first end disk component (61) and the second end disk component (71).
Description
Technical field
The present invention relates to a kind of rotors with end disk.
Background technique
2013/0313928 A1 of US illustrates a kind of motor with cooling duct, axis of the cooling duct from internal rotor
By the cooling duct outward towards the company for extending in the region of air gap and the region of outer stator, and passing through outer stator shell
It connects device to be introduced back from the outer stator, to form cooling circuit.
0 461 905 A2 of EP illustrates a kind of inside wheel-rotating engine with cooling duct, and wherein coolant passes through
Rotating joint is sent at shaft end and is discharged.
10 2,011 052 085 A1 of DE illustrates a kind of motor with inner rotator, wherein at axial sides
Axis has fluid inlet and fluid outlet.
10 2,007 006 986 B3 of DE illustrates a kind of internal runner rotor, has matrix, board group and is placed in board group
Outside magnet.The band formed by CFK is placed in around magnet.
2003/0230950 A1 of US illustrates a kind of motor with outer stator and inner rotator, wherein fixed in outside
The inside of son is fastened with sleeve, to realize isolation.
2 658 099 A1 of EP illustrates a kind of motor with outer stator and inner rotator.Inner rotator has axis
And board group, wherein being provided with sleeve between axis and board group, which limits the coolant channel of axis.
Summary of the invention
The object of the present invention is to provide a kind of new rotors.
The purpose is realized by the theme of following item 1.Following item 2-21 is preferred embodiment.
1. a kind of rotor, which has axis, rotor core and at least one end disk, is formed with cooling in the rotor
Agent channel, so as to realize the coolant flow of coolant by the coolant channel, which has the first section,
First section at least partially extends in the rotor core；The coolant channel has the second section, and second section is at least
Locally extend in the axis；At least one end disk has first end disk component and second end disk component, the first end
Disk component is at least partially disposed between the rotor core and the second end disk component, the first end disk component and second end plate
Component is adjacent to each other；And the coolant channel has third section, and the third section is at least partially by the first end pan portion
Part and the second end disk component are formed jointly and between the two end plate components.
2. according to rotor described in above-mentioned item 1, wherein the first end disk component and the second end disk component be respectively circlewise
It is formed with central opening, so as to realize the arrangement on the axis.
3. according to rotor described in above-mentioned item 1 or 2, the wherein first end disk component and the second end disk component phase securely
It connects, connects or be threadedly coupled particularly by welded connecting, bonding connection, press-fit.
4. the rotor according to one of above-mentioned item, wherein the axis is open with the first coolant channel, wherein this first
End plate component and the second end disk component limit the second coolant channel opening jointly, wherein first coolant channel opening and
Second coolant channel opening, which is in, to be fluidly connected.
5. the rotor according to one of above-mentioned item, wherein the first end disk component is open with third coolant channel,
Wherein the rotor set has the 4th coolant channel opening for distributing to third coolant channel opening, and wherein the third is cooling
Agent access portal and the 4th coolant channel opening are in and fluidly connect.
6. wherein it is cold to be greater than the 4th for the cross section of third coolant channel opening according to rotor described in above-mentioned item 5
But the cross section of agent access portal.
7. the rotor according to one of above-mentioned item, wherein the first end disk component and the second end disk component are by press-fitting
Connection is closed to be fastened on the axis.
8. the rotor according to one of above-mentioned item, wherein the maximum cross section of the third section is greater than the coolant channel
The first section maximum cross section.
9. according to rotor described in above-mentioned item 8, wherein of the maximum cross section of the third section than the coolant channel
The maximum cross section of one section greatly at least 50%.
10. the rotor according to one of above-mentioned item, wherein the cross section of the third section of the coolant channel is entire
Greater than the minimum cross-section of the first section of the coolant channel in length.
11. the rotor according to one of above-mentioned item, wherein being provided at least in the third section of the coolant channel
One furcation.
12. the rotor according to one of above-mentioned item, wherein having in that side of second end disk component coolant channel
Curved face, to reduce the flow resistance of the coolant.
13. the rotor according to one of above-mentioned item, wherein having in that side of first end disk component coolant channel
Curved face, to reduce the flow resistance of the coolant.
14. the rotor according to one of above-mentioned item, wherein observing in the cross section for passing through the rotor, the coolant is logical
Road is at least partially upwardly extended in the side for being different from radial direction.
15. the rotor according to one of above-mentioned item, wherein the axis has the shaft shoulder, and wherein the second of the end disk
End plate component is against the shaft shoulder.
16. the rotor according to one of above-mentioned item, wherein the second end disk component has lantern ring, so as to realize this
Contact of the lantern ring with the axis.
17. the rotor according to one of above-mentioned item, wherein fixing element and the axis connection, so as to realize this second
The axial restraint of end plate component.
18. the rotor according to one of above-mentioned item, wherein the first end disk component has the in the side towards the axis
One protrusion, and the axis has the first distributed groove, so as to realize the torsion of the first end disk component on the axis
It is fixed.
19. according to rotor described in above-mentioned item 18, wherein the rotor core has the second protrusion in that side towards the axis, should
Second protrusion works with first groove one, so as to realize that torsion of the rotor core on the axis is fixed.
20. the rotor according to one of above-mentioned item, wherein it is provided with pin at the axial sides of the rotor core, wherein
The first end disk component has through opening, and the second end disk component has blind hole, and wherein the pin passes through opening across this
It extends in the blind hole, so as to realize the first end disk component and the orientation of second end disk component in a circumferential direction.
21. the rotor according to one of above-mentioned item, wherein at least one end disk is formed as balancing frame.
A kind of rotor has axis, rotor core and at least one end disk.It is formed with coolant channel in the rotor, with
Just can by the coolant channel realize coolant coolant flow, the coolant channel have the first section, this first
Section at least partially extends in the rotor core；The coolant channel has the second section, which at least partially exists
Extend in the axis；At least one end disk has first end disk component and second end disk component, and the first end disk component is extremely
It is partially disposed between the rotor core and the second end disk component less, the first end disk component and the second end disk component are each other
It is adjacent；And the coolant channel has a third section, the third section at least partially by the first end disk component and this
Two end plate components are formed jointly and between the two end plate components.
By coolant channel design between end plate and rotor set, it may occur however that: due to coolant
Pressure, the power between end plate and rotor set works in large area, and the power separates both parts mutual extrusion.By
This may be leaked.By designing coolant channel between first end disk component and second end disk component, in end plate
The power in portion can be largely absorbed, and only can be in the transitional region of the fluid channel between end plate and rotor set
Following power is generated, however the power is smaller due to lesser area.In addition, what the two-piece design of end plate may be implemented
Therefore material processing simultaneously realizes smooth surface and entrance flowing in and out rotor core, shaping in favor of the mode of flowing.
According to preferred embodiment, first end disk component and second end disk component are respectively circlewise formed with center and open
Mouthful, so as to realize the arrangement on axis.It is possible thereby to realize axial restraint at axis.
According to preferred embodiment, first end disk component and second end disk component are securely connected to one another.Preferably, should
Securely connection is to be welded to connect, bond connection or press-fit connection.It is also possible to be threadedly coupled.By the connection, reliably prevent
The two end plate component mutual extrusions are only caused to separate due to the pressure of coolant.
According to preferred embodiment, axis is open with the first coolant channel, and first end disk component and second end
Disk component limits the second coolant channel opening jointly, and wherein first coolant channel opening and second coolant channel are opened
Mouth is in and fluidly connects.Thus what is generated fluidly connects.
According to preferred embodiment, first end disk component is open with third coolant channel, and rotor set has distribution
To the 4th coolant channel opening that third coolant channel is open, wherein third coolant channel opening and the 4th cooling
Agent access portal is in and fluidly connects.It fluidly connects and can be realized in transitional region by what third coolant channel was open
Coolant flow.
According to preferred embodiment, the cross section of third coolant channel opening is logical greater than the 4th distributed coolant
The cross section of road opening.Biggish cross section has been proved to the flowing resistance for reducing entire coolant channel in end plate region
It is very favorable for power.Due to diverter, this is particularly advantageous in this region.
According to preferred embodiment, the cross section that third coolant channel is open is than the cross that the 4th coolant channel is open
Section greatly at least 50%.Thus, it is possible to realize being obviously reduced for flow resistance.This is calculated in simulations.
According to preferred embodiment, first end disk component connects by press-fit with second end disk component and is fastened on axis
On.Thus secured and reliable holding and accurately orientation are obtained.
According to preferred embodiment, the maximum cross section of the third section of coolant channel is greater than the of coolant channel
The maximum cross section of one section.This reduces flow resistance.
According to preferred embodiment, the cross section of the third section of coolant channel is greater than coolant over the entire length
The minimum cross-section of first section in channel.This ratio reduces flow resistance and has turned out to be efficient, because
There are bending sections in third section.
According to preferred embodiment, at least one furcation is provided in the third section of coolant channel.Pass through
Furcation is provided, the coolant channel near axis can be formed very broadly and be narrowed towards access portal.
According to preferred embodiment, there is curved face in that side coolant channel of second end disk component, it is cold to reduce
But the flow resistance of agent.
According to preferred embodiment, there is curved face in that side coolant channel of first end disk component, it is cold to reduce
But the flow resistance of agent.
According to preferred embodiment, observed in the cross section for passing through rotor, coolant channel is not at least partially
The side for being same as radial direction upwardly extends.By this configuration, additional pumping effect can be obtained in the preferred orientation of rotor
Fruit.
According to preferred embodiment, axis has the shaft shoulder, and the second end disk component of end disk is against the shaft shoulder.It is logical
The displacement that crossing the shaft shoulder can limit on axial direction limits.
According to preferred embodiment, second end disk component has lantern ring, so as to realize contact of the lantern ring with axis.It mentions
Allow to improve this connection in a manner of saving material for lantern ring.
According to preferred embodiment, fixing element is connected with axis, so as to realize that the axial direction of second end disk component is solid
It is fixed.Fixing element is provided and obtains additional axial restraint.Corresponding fixation can also be set in two axial sides of rotor
Element.
According to preferred embodiment, first end disk component has the first protrusion in the side towards axis, and axis has
The first groove distributed, so as to realize that torsion of the first end disk component on the axis is fixed.On the one hand, it can thus keep away
Exempt from setup error, and on the other hand, it can be to avoid torsion after mounting in a circumferential direction.
According to preferred embodiment, rotor core has the second protrusion in the side towards axis, second protrusion and first
Groove one works, so as to realize that torsion of the rotor core on axis is fixed.In addition, thus also obtaining in first end disk component
The position distributed between rotor core.
According to preferred embodiment, pin is provided at the axial sides of rotor core, wherein first end disk component has
Have through opening, and second end disk component has blind hole, wherein pin is threaded through opening and extends in blind hole, so as to real
The existing orientation of first end disk component and second end disk component in a circumferential direction.Therefore two end plate components may be implemented in pin
Orientation.
According to preferred embodiment, at least one end disk is formed as balancing frame (Wuchtscheibe).In end plate
Balance at component can realize the design of the rotor of balance in a preferred manner.
According to preferred embodiment, coolant channel has space trend in third section.Therefore, coolant channel
Not only extend in one plane in third section, but also is upwardly extended three different spaces sides.This realizes small stream
Dynamic resistance.
Detailed description of the invention
Other details of the invention and be advantageously improved scheme be obtained from it is described below and be shown in the accompanying drawings, do not answer
It is interpreted as the embodiment of limitation of the present invention in any way and is obtained from above-mentioned item 2-21.In the accompanying drawings:
Fig. 1 shows the uninstalled rotor having there are two end plate with three-dimensional view,
Fig. 2 shows the rotor in Fig. 1 with another three-dimensional view,
Fig. 3 corresponds to Fig. 1 and shows the end plate of two-piece type,
Fig. 4 is shown across the longitudinal section of motor,
Fig. 5 shows an end plate component,
Fig. 6 shows another end plate component,
Fig. 7 to overlook the end plate component shown in Fig. 6,
Fig. 8 shows the end plate component in Fig. 6 with another vertical view,
Fig. 9 to overlook the end plate component shown in Fig. 5,
Figure 10 shows the back side of the component of the end plate in Fig. 9 to overlook,
Figure 11 has been shown ... in a side view the end plate component in Fig. 5 and Fig. 6,
Figure 12 shows the end plate component in Figure 11 with longitudinal section,
Figure 13 shows the details of end plate component with blind hole, in Fig. 5 with longitudinal section,
Figure 14 shows the details of end plate component with break-through opening, in Fig. 6 with longitudinal section,
Figure 15 to overlook the details XV shown in Fig. 7,
Figure 16 shows the another embodiment of the rotor of Fig. 4 with longitudinal section,
Figure 17 shows the another embodiment of the rotor of Fig. 4 with longitudinal section,
Figure 18 shows the cross section in the two coolant channels opening fluidly connected to overlook, and
Figure 19 shows another embodiment in the 4 coolant channels opening fluidly connected.
Identical component is typically provided with identical appended drawing reference in the accompanying drawings and only describes primary.
Specific embodiment
Fig. 1 shows the rotor 20 of motor.Rotor 20 has rotor core 34, and in the first axis side of rotor core 34
21 are provided with the first end disk 51.The second end plate group is provided at the second axial opposed axial sides 22 of rotor core 34
Part 52.Axis 30 schematically indicates out.Rotor core 34 is preferably formed to rotor board group.
Second end disk 52 is shown with non-installation condition, and it is with first end disk component 61 and second end disk component
71.First end disk component 61 is at least partially disposed between rotor core 34 and second end disk component 71.First end disk component
61 and second end disk component 71 be formed as molded component, and coolant channel 40 is collectively formed in the two end plate components.
The rotor in Fig. 1 is obliquely shown from above in Fig. 2.In this embodiment, pin 53 is fastened on rotor core 34
Axial end side.These pins 53 for realizing first end disk component 61, second end disk component 71 and rotor core 34 relative to each other
Orientation.This is favourable, to limit the setting between first end disk component 61 and second end disk component 71 of channel 40 well
Meter.
First end disk component 61 and second end disk component 71 limit coolant channel opening 83,84, these coolants jointly
Access portal, which is formed as being in for the coolant channel opening 46 being shown in FIG. 4 with axis 30, to be fluidly connected, and is used for
The coolant flow between axis 30 and the second end disk 52 may be implemented.First end disk component 61, which has, to be shown in FIG. 3
Coolant channel opening 63, and rotor set has coolant channel opening 29.Coolant channel opening 63 and coolant channel
Opening 29, which is similarly in, to be fluidly connected, and therefore can be carried out by end disk 52 cold between axis 30 and rotor set 34
But agent stream.In this embodiment, coolant channel opening 63 is via by channel 62 and in first end disk component 61 and second end
Coolant channel between disk component 71 is connected.Be formed as the through-hole in first end disk component 61 by channel 62.
Preferably, the end disk 51 in Fig. 1 is provided with coolant channel in an identical manner, so as to by end plate
Component 51 realizes the coolant flow between rotor core 34 and axis 30.
First end disk component 61 has towards the first side 66 of second end disk component 71 and towards second side of rotor core 34
67.Second end disk component 71 has second side away from the first side of first end disk component 61 and towards first end disk component 61.
It is provided with fastening opening 79 at second end disk component 71, is used for rotor 20 and application ware
(Applikation) it connects.Fastening opening 79 is preferably not formed as break-through opening and is created as blind hole, to avoid
Leakage.
First end disk component 61 and second end disk component 71 are respectively circlewise formed with central opening 81 or 82.As a result, this
Two end plate components can be arranged in well on axis 30.
Preferably, first end disk component 61 and second end disk component 71 are securely connected to one another.For this purpose, for example welding connects
It is all applicable for connecing, bonding connection or press-fit connection.The connection can carry out before being mounted at rotor core 34.By this
Connection can squeeze mutually to avoid the first end disk component 61 as caused by hydrostatic pressure or dynamic pressure and second end disk component 71
Pressure separates.
First end disk component 61 and second end disk component 71 is obliquely shown from below in Fig. 3.It can be seen that being used for and axis
The 30 coolant channel openings 63 and opening 83,84 fluidly connected.First end disk component 61 and second end disk component 71 all have
Curved face, to form coolant channel 40 with low pressure loss, advantageously shaping in fluid meaning.
Fig. 4 shows the schematic configuration of motor 10 with longitudinal section.Illustrate only the side in 33 left side of rotary shaft.
Motor 10 has stator 12 and rotor 20.Rotor 20 is formed as inner rotator, and stator 12 is formed as external fixed
Son.But it is also possible that rotor is formed as external rotor, and stator is formed as internal stator.Rotor 20 has axis 30
The rotor core 34 being connected with axis 30.Coolant channel 40 is formed, in rotor 20 to realize across coolant channel 40
Coolant flow.The cooling of rotor 20 is feasible as a result, and this is especially advantageous in the case where heavy-duty motor, such as
For driving the motor of electric vehicle.Coolant channel 40 has coolant entrance 47, coolant outlet 48, section 42 and portion
Section 41, which partially or completely extends in axis 30, which at least partially extends in rotor core 34.
Rotor core 34 preferably has sleeve 35 at external circumferential surface 38, which is arranged in the magnetic air gap of motor 10
In 39.Magnetic air gap 39 is bad magnetic conduction or the non-magnetic region between stator 12 and rotor 20.
At the first axis side 21 of rotor core 34 be arranged the first end plate 51, and rotor core 34 and first axis
Second end plate 52 is set at the second opposite axial sides 22 of side 21.Coolant channel 40 preferably has 43 He of third section
4th section 44, the third section 43 extend through the first end plate 51, and the 4th section 44 extends through the second end plate 52.
Sleeve 35 is preferably extended in the axial direction in the region of the first end plate 51 and/or the second end plate 52.This
Realize the sealing in the transitional region between rotor core 34 and end plate 51,52.
The canned rotor 20 in fluid meaning preferably at external circumferential surface 38 of sleeve 35.Although coolant channel 40 is turning
Extend in section 41 in the inside of sub- core 34, such as in hole.Although following situations can occur: coolant 45 is in rotor core
It passes through and leaves from coolant channel 40 between 34 two adjacent panels.Coolant 45 can be reduced or avoided by sleeve 35 to exist
Evolution at exterior circumferential face 38.
Sleeve 35 is preferably formed by glass fiber compound material, i.e., is formed by the material with glass fibre.Preferably,
In addition glass fiber compound material has resin, to realize good leakproofness.
It is adhesively joined it is particularly preferred that existing between sleeve 35 and rotor core 34.This kind of be adhesively joined for example can be with
It is following to realize, i.e., glass fiber compound material is solidified on rotor core 34 together with resin.Thus in rotor core 34 and sleeve
Chemical adhesion between 35, which produces, to be adhesively joined.
Preferably, sleeve 35 is formed by electrically and magnetically nonconductive material.It reduces or is completely avoided in sleeve as a result,
Eddy current is formed in 35.
In this embodiment, axis 30 is formed to have internal first axle part 31 and external the second shaft portion in two style
Divide 32.This is easier the formation of the section 42 of the coolant channel 40 in axis 30.
At axis 30, rotating joint 49 is provided at first axis side 21, to realize in coolant entrance 47
With fluidly connecting at coolant outlet 48.
Transmission can carry out at the axis 30 in the second axial sides 22.
At least one end disk 51,52 is preferably formed to balancing frame.
First end disk component 61 and second end disk component 71 are preferably formed by metal, but the two end plate components can also
To be formed by plastics.As metal, such as aluminum or aluminum alloy is applicable.
Fig. 5 shows second side 77 of second end disk component 71, and it is excellent to can see having for channel 40 or channel 40
Select least partially bent at face part of wall.It is formed with lantern ring 72, at central opening 82 so as to realize at axis 30
The better connection of second end disk component 71.
Fig. 6 shows the first side 66 of first end disk component 61, and can see to have and preferably at least locally be bent
Face coolant channel 40.Coolant channel 40 is at least partially furcation 90, so that the opening for leading to axis 30 is drawn
It is divided into multiple openings towards rotor core 34.
Fig. 7 shows the first end disk component 61 of second side 67, and is formed with multiple coolants in second side 67 and leads to
Road opening 63.First end disk component 61 has protrusion 68, these protrusions are inwardly stretched out in the region of opening 81.It schematically shows
Axis 30 there is groove 37, protrusion 68 engages into these grooves.Thus to obtain positioning and reverse fixation.
Fig. 8 shows the first side 66 of first end disk component 61.The furcation of coolant channel 40 can be seen well
90。
Fig. 9 shows first side 76 with opening 82 and lantern ring 72 of second end disk component 71.In this embodiment, do not have
Have and the additional opening for installation is set in the first side 76.
Figure 10 shows second side 77 with central opening 82 of second end disk component 71.
Figure 11 has been shown ... in a side view first end disk component 61 and second end disk component 71, and Figure 12 is to pass through rotary shaft
The longitudinal section of line shows first end disk component 61 and second end disk component 71.In first end disk component 61, coolant channel
40 forming part is inwardly swelled from edge.In second end disk component 71, edge is drawn slightly toward first end disk component 61, with
Just good sealing is realized in the outer region.Alternatively, second end disk component 71 could be formed with than first end disk component
61 bigger diameters, and first end disk component 61 can be at least partially accommodated into second end disk component 71 with its edge.
Figure 13 is shown across the longitudinal section of second end disk component 71, and is formed in the second segment integrated disc portions blind
Hole 75.
Figure 14 shows across the correspondence longitudinal section of first end disk component 61, and is formed in the first end disk component
Pass through opening 65.
By having a design by opening 65 and blind hole 75, first end disk component 61 and second end disk component 71 can be by
It is located on the pin 53 in Fig. 2, and accordingly orients.
Figure 15 shows the details XV in Fig. 7.Protrusion 68 is shown, which inwardly stretches out from opening 81, so that relatively
It is possibly realized in the scheduled positioning of axis 30.
Figure 16 shows another embodiment being fastened on axis 30 with the sectional view corresponding to Fig. 4.It is formed at axis 30
The shaft shoulder 27, and the first end plate 51 can be pushed or is pressed to from top or generally from that end away from the shaft shoulder 27 of the axis
On axis 30.Then, rotor core 34 can be pushed or be compressed, and is pushed into magnet 36 (Fig. 4).Then, the second end plate 52 is pushed away
It moves on axis 30.Or press-fit connection can be formed between the second end plate 52 and axis 30 simultaneously it is possible thereby to realize the second end plate
52 axial restraint, or fixing element can be alternatively or additionally set.Fixing element 26 is shown, which connects
It is incorporated into axis 30 and thus axial restraint.Fixing element 26 is, for example, lock ring or screw, which is screwed into axis 30.In
After installing the first end plate 51, rotor core 34 and the second end plate 52, sleeve 35 can be preferably positioned at the circumference of rotor,
To realize the sealing to coolant channel 40 in the region of rotor core 34.
Figure 17 shows the another embodiments of rotor installation.Such as Figure 16, the first end plate 51 against axis 30 the shaft shoulder 27,
And rotor core 34 is pushed.Second end plate 52 has lantern ring 72, and second end plate is preferably pressed on axis 30, so as to
Obtain press-fit connection.Additionally, fixing element 28 is pushed or is rotated on axis 30 with form of sleeve, to obtain end plate
51,52 and rotor core 34 additional axial restraint.Fixing element 28 can be bonded for example with axis 30, or can be in fixed member
Threaded connection is provided between part 28 and axis 30.
Figure 18 is shown from the coolant channel opening 63 with larger cross section of first end disk component 61 to rotor core
The transition of the 34 coolant channel opening 29 with smaller cross-sectional area.
Figure 19 shows logical from the coolant with larger cross section of first end disk component 61 in another embodiment
Road opening 63 arrives the transition of three with the smaller cross-sectional area coolant channel opening 29 of rotor core 34.Thus, it is possible to make to turn
Multiple coolant channels opening 29 of sub- core 34 is formed with the coolant channel opening 63 of first end disk component 61 and is fluidly connected.
Certainly, there can be various change and modification within the scope of the present invention.
It is commonly referred "one" coolant channel opening.This is not precluded, there may also be and multiple coolants are shown
Access portal.This is also applied for other openings, channel and component.
Claims (21)
1. a kind of rotor (20), which has axis (30), rotor core (34) and at least one end disk (51,52), at this
Coolant channel (40) are formed in rotor (20), so as to realize the cold of coolant (45) by the coolant channel (40)
But agent stream, the coolant channel (40) have the first section (41), and first section is at least partially in the rotor core (34)
Extend；The coolant channel (40) has the second section (41), which at least partially extends in the axis (30)；It should
At least one end disk (51,52) has first end disk component (61) and second end disk component (71), the first end disk component
(61) be at least partially disposed between the rotor core (34) and the second end disk component (71), the first end disk component (61) and
The second end disk component (71) is adjacent to each other；And the coolant channel (40) has third section (43,44), the third section
At least partially by the first end disk component (61) and the second end disk component (71) jointly and in the two end plate components
Between formed.
2. rotor according to claim 1, wherein the first end disk component (61) and the second end disk component (71) are respective
Central opening (81,82) are circlewise formed with, so as to realize the arrangement on the axis (30).
3. rotor according to claim 1 or 2, wherein the first end disk component (61) and the second end disk component (71) are firm
Admittedly be connected with each other, particularly by be welded to connect, bonding connection, press-fit connect or be threadedly coupled.
4. rotor according to claim 1 or 2, wherein the axis (30) has the first coolant channel opening (46), wherein
The first end disk component (61) and the second end disk component (71) limit the second coolant channel opening (83,84) jointly, wherein
First coolant channel opening (46) and second coolant channel opening (83,84), which are in, to be fluidly connected.
5. rotor according to claim 1 or 2, wherein the first end disk component (61) is open with third coolant channel
(63), wherein the rotor set (34) has the 4th coolant channel opening for distributing to third coolant channel opening (63)
(29), wherein the third coolant channel is open (63) and the 4th coolant channel opening (29) is in and fluidly connects.
6. rotor according to claim 5, wherein the cross section of third coolant channel opening (63) is greater than the 4th
The cross section of coolant channel opening (29).
7. rotor according to claim 1 or 2, wherein the first end disk component (61) and the second end disk component (71) are borrowed
Pressing aid mating connection is fastened on the axis (30).
8. rotor according to claim 1 or 2, wherein the maximum cross section of the third section (43,44) is greater than the cooling
The maximum cross section of first section (41) in agent channel (40).
9. rotor according to claim 8, wherein the maximum cross section of the third section (43,44) is than the coolant channel
(40) maximum cross section greatly at least 50% of the first section (41).
10. rotor according to claim 1 or 2, wherein the third section (43,44) of the coolant channel (40) is transversal
Face is greater than the minimum cross-section of the first section (41) of the coolant channel over the entire length.
11. rotor according to claim 1 or 2, wherein being set in the third section (43,44) of the coolant channel (40)
It is equipped at least one furcation (90).
12. rotor according to claim 1 or 2, wherein in second end disk component (71) that side coolant channel
(64) there is curved face, to reduce the flow resistance of the coolant (45).
13. rotor according to claim 1 or 2, wherein in first end disk component (61) that side coolant channel
(64) there is curved face, to reduce the flow resistance of the coolant (45).
14. rotor according to claim 1 or 2, wherein being observed in the cross section for passing through the rotor (20), the coolant
Channel (64) is at least partially upwardly extended in the side for being different from radial direction.
15. rotor according to claim 1 or 2, wherein the axis (30) has the shaft shoulder (27), and the wherein end disk
The second end disk component (71) of (51,52) is against the shaft shoulder (27).
16. rotor according to claim 1 or 2, wherein the second end disk component (71) has lantern ring (72), so as to
Realize the contact of the lantern ring (72) and the axis (30).
17. rotor according to claim 1 or 2, wherein fixing element (26,28) is connect with the axis (30), so as to
Realize the axial restraint of the second end disk component (71).
18. rotor according to claim 1 or 2, wherein the first end disk component (61) is in the side towards the axis (30)
With first raised (68), and the axis (30) has distributed the first groove (37), so as to realize first end plate
Torsion of the component (61) on the axis (30) is fixed.
19. rotor according to claim 18, wherein the rotor core (34) has second in that side towards the axis (30)
Raised (25), which works with first groove (37) one, so as to realize the rotor core (34) in the axis
(30) torsion on is fixed.
20. rotor according to claim 1 or 2, wherein being provided at the axial sides (21,22) of the rotor core (34)
Pin (53), wherein the first end disk component (61) has through opening, and the second end disk component (71) has blind hole (75),
Wherein the pin, which passed through, to be extended in the blind hole (75) by opening (65), so as to realize the first end disk component (61)
With the orientation of second end disk component (71) in a circumferential direction.
21. rotor according to claim 1 or 2, wherein at least one end disk (51,52) is formed as balancing frame.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018111993.3A DE102018111993A1 (en) | 2018-05-18 | 2018-05-18 | Rotor with a Endscheibenanordnung |
| DE102018111993.3 | 2018-05-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110504774A true CN110504774A (en) | 2019-11-26 |
| CN110504774B CN110504774B (en) | 2022-04-05 |
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ID=68419229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910411517.2A Active CN110504774B (en) | 2018-05-18 | 2019-05-17 | Rotor with end disc assembly |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110504774B (en) |
| DE (1) | DE102018111993A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019218088A1 (en) * | 2019-11-22 | 2021-05-27 | Zf Friedrichshafen Ag | Rotor for an electric machine |
| DE102020007741A1 (en) | 2020-12-17 | 2022-06-23 | Mercedes-Benz Group AG | electrical machine |
| DE102021211273A1 (en) | 2021-10-06 | 2023-04-06 | Volkswagen Aktiengesellschaft | Balancing disc with relief channels |
| DE102022003680A1 (en) * | 2022-10-05 | 2024-04-11 | Wieland-Werke Aktiengesellschaft | Rotor of an electrical asynchronous machine and method for its manufacture |
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|---|---|---|---|---|
| US20130313928A1 (en) * | 2012-05-25 | 2013-11-28 | Gary Brown | Electric Machine Rotor Cooling Method |
| CN104704723A (en) * | 2012-08-08 | 2015-06-10 | Ac推进有限公司 | Liquid cooled electric motor |
| CN204906112U (en) * | 2015-08-25 | 2015-12-23 | 比亚迪股份有限公司 | Cold motor of oil and vehicle |
| CN106300809A (en) * | 2016-09-27 | 2017-01-04 | 佛山市顺德区金泰德胜电机有限公司 | A kind of cooling structure of electric motor of automobile |
| CN206865309U (en) * | 2017-05-15 | 2018-01-09 | 北京亿马先锋汽车科技有限公司 | Integrated motor and there is its automobile |
| CN207039328U (en) * | 2017-06-20 | 2018-02-23 | 上海蔚来汽车有限公司 | Rotor liquid cooling structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4560067B2 (en) * | 2007-07-19 | 2010-10-13 | トヨタ自動車株式会社 | Rotating electric machine |
| JP4949983B2 (en) * | 2007-09-18 | 2012-06-13 | トヨタ自動車株式会社 | Rotating electric machine |
| JP2009268192A (en) * | 2008-04-23 | 2009-11-12 | Toyota Motor Corp | Automatic rotor unbalance adjusting apparatus |
| JP5652638B2 (en) * | 2010-05-31 | 2015-01-14 | アイシン精機株式会社 | Rotor for rotating electrical machines |
| JP5738007B2 (en) * | 2011-03-02 | 2015-06-17 | 株式会社小松製作所 | Electric motor cooling structure and electric motor |
-
2018
- 2018-05-18 DE DE102018111993.3A patent/DE102018111993A1/en active Pending
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- 2019-05-17 CN CN201910411517.2A patent/CN110504774B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130313928A1 (en) * | 2012-05-25 | 2013-11-28 | Gary Brown | Electric Machine Rotor Cooling Method |
| CN104704723A (en) * | 2012-08-08 | 2015-06-10 | Ac推进有限公司 | Liquid cooled electric motor |
| CN204906112U (en) * | 2015-08-25 | 2015-12-23 | 比亚迪股份有限公司 | Cold motor of oil and vehicle |
| CN106300809A (en) * | 2016-09-27 | 2017-01-04 | 佛山市顺德区金泰德胜电机有限公司 | A kind of cooling structure of electric motor of automobile |
| CN206865309U (en) * | 2017-05-15 | 2018-01-09 | 北京亿马先锋汽车科技有限公司 | Integrated motor and there is its automobile |
| CN207039328U (en) * | 2017-06-20 | 2018-02-23 | 上海蔚来汽车有限公司 | Rotor liquid cooling structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110504774B (en) | 2022-04-05 |
| DE102018111993A1 (en) | 2019-11-21 |
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