CN206313565U - Rotor oil cooling structure and the motor with the oil cooling structure - Google Patents
Rotor oil cooling structure and the motor with the oil cooling structure Download PDFInfo
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- CN206313565U CN206313565U CN201621329214.4U CN201621329214U CN206313565U CN 206313565 U CN206313565 U CN 206313565U CN 201621329214 U CN201621329214 U CN 201621329214U CN 206313565 U CN206313565 U CN 206313565U
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- cooling duct
- duct
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- 238000001816 cooling Methods 0.000 title claims abstract description 179
- 238000004804 winding Methods 0.000 claims description 13
- 230000005484 gravity Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000498 cooling water Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
Abstract
The utility model belongs to machine field, and in particular to a kind of rotor oil cooling structure and the motor with the oil cooling structure.In order to further improve the cooling effect to rotor, rotor oil cooling structure of the present utility model includes rotating shaft and is arranged at the rotor core of the rotating shaft radial outside in an interference fit, rotor core is circumferentially distributed some grooves, sliver is embedded with each groove, the first cooling duct is provided with least a portion sliver, to enable that the cooling oil being placed in the first cooling duct directly cools down sliver；The two ends of the first cooling duct have the first oil inlet and the first oil-out, and the cooling oil for entering the first cooling duct from the first oil inlet flows out rotor through the first oil-out.In the technical solution of the utility model, cooling duct is used as by opening up through hole on rotor bar so that cooling oil can flow through the cooling duct and then directly cool down rotor, so as to effectively reduce temperature of rotor, improve cooling effect.
Description
Technical field
The utility model belongs to machine field, and in particular to a kind of rotor oil cooling structure and with the oil cooling structure
Motor.
Background technology
Copper rotor asynchronous machine is used successfully as electric automobile because it has the advantages that high efficiency and high reliability
Traction electric machine.Magneto is different from, in continuous service, the loss produced in rotor short-circuit ring causes asynchronous electricity to asynchronous machine
The rotor of machine reaches temperature very high, therefore, asynchronous machine especially its rotor cooling structure design turned into weigh it is asynchronous
One of key factor of motor performance.
Motor is cooled down by the way of water-cooled or oil cooling generally at present.Motor is cooled down using water-cooling pattern
When, the structure for cooling down stator is typically to set cooling water channel and the water inlet positioned at cooling water channel two ends in the casing of motor
And delivery port.Cooling water flows into the cooling duct from water inlet, from delivery port outflow, and then realizes the cooling to stator.Cooling
The structure of rotor is typically for armature spindle to be set to quill shaft, is inserted into a cooling water pipe through the armature spindle, from foregoing
The cooling water of delivery port outflow flow into the cooling further realized after the cooling water pipe to rotor.Using oil cooling mode to motor
The process for being cooled down typically carries out direct injection cooling by the oil duct junction on motor case to winding overhang first, i.e., in fact
The cooling to stator is showed.Cooling oil is fallen on rotor under gravity afterwards, in the centrifugal force that rotor is rotated
Under effect, fall the cooling oil on rotor and splash down in end cap, bearing and rotating shaft, it is achieved thereby that the cooling to rotor.
Knowable to from above-mentioned, by the way of cooling water is cooled down by the hollow space of armature spindle and then to rotor
When, because cooling water cannot be directly acted on rotor, therefore reduce the cooling effectiveness to rotor.And use by making to fixed
During the mode that the cooling oil after sub- winding cooling is fallen on rotor and then cooled down to rotor, although cooling oil can be made direct
Act on rotor, but because cooling oil first by falling rotor portion again after stator winding, may result in rotor cold
It is uneven.Therefore, in order to further improve the cooling effect to rotor, the utility model is in existing rotor
Further improvement is made that on cooling structure.
Utility model content
In order to solve above mentioned problem of the prior art, i.e., in order to further improve the cooling effect to rotor, this
Utility model proposes a kind of rotor oil cooling structure.The rotor includes rotating shaft and sets in an interference fit
In the rotor core of the rotating shaft radial outside, it is characterised in that the rotor core is circumferentially distributed some grooves, each
Sliver is embedded with the groove, the first cooling duct is provided with least a portion sliver, to cause to be placed at least one
Cooling oil in individual first cooling duct can directly cool down the sliver；The two ends of first cooling duct have the
One oil inlet and the first oil-out, go out from first oil inlet into the cooling oil of first cooling duct through described first
Hydraulic fluid port flows out the rotor.
In the preferred embodiment of above-mentioned rotor oil cooling structure, at least one is provided with each described sliver
First cooling duct with equal number in first cooling duct, and/or each described sliver.
In the preferred embodiment of above-mentioned rotor oil cooling structure, first cooling duct is along first oil-feed
Mouth arrives the inclined structure in direction of first oil-out, and the incline structure can make to enter the cooling of first cooling duct
Oil flows out along the incline structure from first oil-out under gravity.
In the preferred embodiment of above-mentioned rotor oil cooling structure, first cooling duct is near the rotating shaft
Side along first oil inlet to the direction of first oil-out near the rotating shaft direction incline.
In the preferred embodiment of above-mentioned rotor oil cooling structure, the bore of first oil inlet is less than described the
The bore of one oil-out.
On the other hand, present invention also offers a kind of motor, its end for including casing and being arranged at the casing both sides
Lid, the casing and the end cap are formed with cavity, rotor are provided with the cavity, are coaxially disposed on the outside of the rotor
Stator and the stator winding being surrounded on the stator, the rotor have it is above-mentioned in rotor oil cooling structure.
In the preferred embodiment of above-mentioned motor, the second cooling duct is provided with the top of the casing, described
The second oil inlet and the second oil-out are provided with the outside of two cooling ducts, it is logical to enter the described second cooling from second oil inlet
The cooling oil in road flows out the casing through second oil-out；The first oil spout is provided with the inside of second cooling duct
Mouthful and the second jet, and therefore enable the cooling oil entered in second cooling duct by first jet and
Second jet is injected into the stator winding.
In the preferred embodiment of above-mentioned motor, connected with second cooling duct is provided with the end cap
Three cooling ducts, the 3rd jet connected with first cooling duct is provided with the 3rd cooling duct, into institute
The cooling oil for stating the 3rd cooling duct enters first cooling duct by the 3rd jet.
In the preferred embodiment of above-mentioned motor, the bottom of the casing is provided with least one the 3rd oil-outs, from
The cooling oil of the first cooling duct outflow flows out the casing by the 3rd oil-out.
In the preferred embodiment of above-mentioned motor, the 3rd cooling duct be arranged on connect the rotating shaft power it is defeated
Go out on the end cap at end.
In sum, in the technical solution of the utility model, by opening up on the sliver of rotor through hole, to be used as cooling logical
Road (the first cooling duct) so that cooling oil can flow through the cooling duct and then directly cool down rotor, so as to effectively reduce
Temperature of rotor, improves cooling effect.And further by by the cooling duct incline structure is set to, it is more beneficial for cooling oil
Outflow.On the other hand, in the motor with the rotor oil cooling structure that the utility model is provided, by casing, end
Cover and be respectively provided with corresponding cooling duct, and be engaged with the cooling duct in the rotor oil cooling structure, so that significantly
Improve the overall cooling effectiveness of motor degree.
Brief description of the drawings
Fig. 1 is that the structural representation in the cross section of rotor of the present utility model (eliminates symmetrical lower half in figure
Point)；
Fig. 2 is the structural representation of the vertical section of the sliver being arranged in rotor core of the present utility model；
Fig. 3 is the structural representation of motor of the present utility model.
Specific embodiment
Preferred embodiment of the present utility model described with reference to the accompanying drawings.It should be understood by those skilled in the art that
It is that these implementation methods are used only for explaining know-why of the present utility model, it is not intended that limitation protection of the present utility model
Scope.For example, although each component in accompanying drawing is drawn with special ratios, what this proportionate relationship was merely exemplary,
Those skilled in the art can adjust to it as needed, to adapt to specific application scenario.
It is term " " center ", " on ", D score, "left", "right", " perpendicular it should be noted that in description of the present utility model
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outward " are, based on orientation shown in the drawings or position relationship, to be only
Described with simplified for the ease of description the utility model, must had rather than the device or element for indicating or implying meaning specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
In addition it is also necessary to explanation, in description of the present utility model, unless otherwise clearly defined and limited, art
Language " installation ", " connected ", " connection " should broadly understood, for example, it may be fixedly connected, or be detachably connected, or
It is integrally connected；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to by between intermediary
Connect connected, can be two connections of element internal.To those skilled in the art, on can understanding as the case may be
State concrete meaning of the term in the utility model.
Reference picture 1, Fig. 1 is the structural representation in the cross section of rotor of the present utility model.As shown in figure 1, the electricity
Machine rotor 1 mainly includes rotating shaft 11 and is arranged at the rotor core 12 of the radial outside of rotating shaft 11 in an interference fit, turns
Sub- iron core 12 is circumferentially distributed some grooves, and sliver 13 is embedded with each groove, can be at least a portion sliver 13
At least one first cooling ducts 131 are set, are led with enabling the cooling oil being placed in the first cooling duct 131 directly to cool down
The heat that bar 13, i.e. sliver 13 are produced directly can be taken away by cooling oil such that it is able to effectively reduce temperature of rotor, and then lifted
Cooling effect.Preferably, at least one first cooling ducts 131, and each sliver can be respectively provided with each sliver 13
The first cooling duct 131 with equal number in 13.In the present embodiment, it is first cold to be respectively provided with one in each sliver 13
But illustrated as a example by passage 131.Obviously, two, three even more first coolings can also be set in each sliver 13
Passage 131.
Reference picture 2, Fig. 2 is the structural representation of the vertical section of the sliver being arranged in rotor core of the present utility model.
As shown in Fig. 2 the two ends of the first cooling duct 131 have the first oil inlet 1311 and the first oil-out 1312, from the first oil-feed
Mouth 1311 enters the cooling oil of the first cooling duct 131 through the outflow motor rotor 1 of the first oil-out 1312.Wherein, the first cooling
Passage 131 along first the 1311 to the first oil-out of oil inlet 1312 the inclined structure in direction, the incline structure can make entrance
The cooling oil of the first cooling duct 131 flows out along incline structure from the first oil-out 1312 under gravity.Specifically,
One cooling duct 131 turns along the direction of first the 1311 to the first oil-out of oil inlet 1312 in the side of close rotating shaft 11 to close
The direction of axle 11 inclines (downside of the first cooling duct 131 is inclined downwards from left to right in Fig. 2).That is, working as cooling oil
After entering the first cooling duct 131 from the first oil inlet 1311, due to the inclined structure in the first cooling duct 131, therefore cooling
Oil can flow along the inclined inclined-plane in the first cooling duct 131 under gravity, and then be flowed out from the first oil-out 1312.
Therefore, by incline structure of the present utility model, the circulation of cooling oil is more beneficial for, further increases cooling effectiveness.In addition,
When rotor 1 is in rotation process, the cooling oil in the first cooling duct 131 can also under the influence of centrifugal force along first
Flowed out from the first oil-out 1312 cooling duct 131.Additionally, in the present embodiment, the bore of the first oil inlet 1311 can be made small
In the bore of the first oil-out 1312, so, it is possible to prevente effectively from the cooling oil in the first cooling duct 131 is in centrifugal force
In the presence of flowed out from the first oil inlet 1311.
On the other hand, the utility model provides a kind of motor.Reference picture 3, Fig. 3 is that electric machine structure of the present utility model shows
It is intended to.As shown in figure 3, the motor mainly includes casing 4 and is arranged at the drive end bearing bracket 41 (left side in Fig. 3) of the both sides of casing 4
With rear end cap 42 (right side in Fig. 3).Casing 4, drive end bearing bracket 41 and rear end cap 42 are formed with cavity, be provided with cavity rotor 1,
The stator 5 being coaxially disposed on the outside of rotor 1 and the stator winding 51 being surrounded on stator 5.Wherein, rotor 1 mainly includes turning
Axle 11 and the rotor core 12 of the radial outside of rotating shaft 11 is arranged in an interference fit, circumferentially divide in rotor core 12
Some grooves are furnished with, sliver 13 is embedded with each groove, the first cooling duct 131 can be provided with sliver 13, so that
The cooling oil that in the first cooling duct 131 must be placed in can directly cool down sliver 13.
With further reference to Fig. 3, the top of casing 4 is provided with the second cooling duct 40, in the outside of the second cooling duct 40
The second oil inlet 401 and the second oil-out 402 are provided with, the cooling oil for entering the second cooling duct 40 from the second oil inlet 401 is passed through
Second oil-out 402 can outflow casing 4.Preferably, the inner side of the second cooling duct 40 is additionally provided with the He of the first jet 403
Second jet 404, and therefore enable the cooling oil entered in the second cooling duct 40 by the first jet 403 and second
Jet 404 is injected into stator winding 51 and then stator winding 51 is cooled down.
Further, the clutch end of rotating shaft 11 is connected on drive end bearing bracket 41, can be provided with drive end bearing bracket 41 with
3rd cooling duct 421 of the connection of the second cooling duct 40, is provided with and the first cooling duct 131 on the 3rd cooling duct 421
3rd jet 4211 of connection, it is cold that the cooling oil into the 3rd cooling duct 421 enters first by the 3rd jet 4211
But passage 131.Specifically, the 3rd jet 4211 is engaged with the first oil inlet 1311 of the first cooling duct 131 so that from
The cooling oil that 3rd jet 4211 sprays, can enter the first cooling duct 131, then cooling oil from the first oil inlet 1311
Under gravity or under the centrifugal action of rotor rotation, flowed out from the first oil-out 1312 along the first cooling duct 131,
And drop onto the bottom of motor.Specifically, cooling oil is along rear end cap 42 and rotor 1, stator 5 and is looped around on stator 5
Space between stator winding 51 drops onto the bottom of motor.It should be noted that it is above-mentioned from the second cooling duct 40 through first
403 and second jet of jet 404 enters the cooling oil of the part of stator winding 51, and a part can be by the 3rd jet
4211 enter in the first cooling duct 13 through the first oil inlet 131, and another part can be along rear end cap 42 and rotor 1, stator 5
And it is looped around the bottom that space between the stator winding on stator 5 drops onto motor.
Further, the bottom of casing 4 is provided with least one the 3rd oil-outs 43, and it is cold that the first cooling duct 131 is flowed out
But oil flows out casing 4 by the 3rd oil-out 43.Preferably, the bottom of motor is additionally provided with the 4th oil-out 44, such that it is able to
Accelerate cooling oil circulating in motor.It is highly preferred that before the 3rd oil-out 43 and the 4th oil-out 44 are separately positioned on
On end cap 41 and rear end cap 42.
So far, combined preferred embodiment shown in the drawings describes the technical solution of the utility model, but, this
Art personnel are it is easily understood that protection domain of the present utility model is expressly not limited to these specific embodiments.
On the premise of principle of the present utility model, those skilled in the art can make equivalent change to correlation technique feature
Or replace, the technical scheme after these are changed or replace it is fallen within protection domain of the present utility model.
Claims (10)
1. a kind of rotor oil cooling structure, the rotor includes rotating shaft and is arranged at the rotating shaft in an interference fit
The rotor core of radial outside, it is characterised in that the rotor core is circumferentially distributed some grooves, in each described groove
Sliver is embedded with, at least one first cooling ducts are provided with least a portion sliver, to cause to be placed in described first
Cooling oil in cooling duct can directly cool down the sliver；
The two ends of first cooling duct have the first oil inlet and the first oil-out, enter described from first oil inlet
The cooling oil of the first cooling duct flows out the rotor through first oil-out.
2. rotor oil cooling structure according to claim 1, it is characterised in that be provided with each described sliver to
Few first cooling duct, and/or
First cooling duct with equal number in each described sliver.
3. rotor oil cooling structure according to claim 2, it is characterised in that first cooling duct is along described
One oil inlet to first oil-out the inclined structure in direction, the incline structure can make enter first cooling duct
Cooling oil flowed out from first oil-out along the incline structure under gravity.
4. rotor oil cooling structure according to claim 3, it is characterised in that first cooling duct is near institute
The side for stating rotating shaft inclines along first oil inlet to the direction of first oil-out near the direction of the rotating shaft.
5. rotor oil cooling structure according to claim 3, it is characterised in that the bore of first oil inlet is less than
The bore of first oil-out.
6. a kind of motor, its end cap for including casing and being arranged at the casing both sides, the casing and the end cap are formed
There is cavity, rotor, the stator being coaxially disposed on the outside of the rotor are provided with the cavity and are surrounded on the stator
Stator winding, it is characterised in that the rotor has the rotor oil cooling structure any one of claim 1 to 5.
7. motor according to claim 6, it is characterised in that the second cooling duct is provided with the top of the casing,
The second oil inlet and the second oil-out are provided with the outside of second cooling duct, described second is entered from second oil inlet
The cooling oil of cooling duct flows out the casing through second oil-out；
The first jet and the second jet are provided with the inside of second cooling duct, and therefore make to enter described second
Cooling oil in cooling duct can be injected into the stator winding by first jet and second jet.
8. motor according to claim 7, it is characterised in that be provided with the end cap and second cooling duct connects
The 3rd logical cooling duct, the 3rd jet connected with first cooling duct is provided with the 3rd cooling duct,
Cooling oil into the 3rd cooling duct enters first cooling duct by the 3rd jet.
9. the motor according to any one of claim 6 to 8, it is characterised in that the bottom of the casing is provided with least
One the 3rd oil-out, the casing is flowed out from the cooling oil of first cooling duct outflow by the 3rd oil-out.
10. motor according to claim 8, it is characterised in that the 3rd cooling duct is arranged on the connection rotating shaft
Clutch end the end cap on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621329214.4U CN206313565U (en) | 2016-12-06 | 2016-12-06 | Rotor oil cooling structure and the motor with the oil cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621329214.4U CN206313565U (en) | 2016-12-06 | 2016-12-06 | Rotor oil cooling structure and the motor with the oil cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206313565U true CN206313565U (en) | 2017-07-07 |
Family
ID=59251099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621329214.4U Active CN206313565U (en) | 2016-12-06 | 2016-12-06 | Rotor oil cooling structure and the motor with the oil cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206313565U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947475A (en) * | 2017-11-30 | 2018-04-20 | 广东葆德科技有限公司 | A kind of thermal diffusivity motor |
| CN108173394A (en) * | 2018-02-05 | 2018-06-15 | 株洲齿轮有限责任公司 | Electromotor cooling system, motor and electric vehicle |
| CN108336865A (en) * | 2018-03-30 | 2018-07-27 | 北京理工大学 | A kind of liquid cooling driving motor |
| CN110429763A (en) * | 2019-08-23 | 2019-11-08 | 珠海格力电器股份有限公司 | A kind of rotor stop plate, rotor assembly, motor and vehicle |
| CN111463942A (en) * | 2019-01-22 | 2020-07-28 | 丰田自动车株式会社 | Rotating electrical machine |
| CN111769674A (en) * | 2020-05-18 | 2020-10-13 | 华为技术有限公司 | Rotor, motor, power assembly and vehicle |
| CN112636501A (en) * | 2020-11-27 | 2021-04-09 | 联合汽车电子有限公司 | Motor rotor and motor |
| CN113783323A (en) * | 2021-09-15 | 2021-12-10 | 臻驱科技（上海）有限公司 | Motor stator cooling structure |
-
2016
- 2016-12-06 CN CN201621329214.4U patent/CN206313565U/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947475A (en) * | 2017-11-30 | 2018-04-20 | 广东葆德科技有限公司 | A kind of thermal diffusivity motor |
| CN108173394A (en) * | 2018-02-05 | 2018-06-15 | 株洲齿轮有限责任公司 | Electromotor cooling system, motor and electric vehicle |
| CN108336865A (en) * | 2018-03-30 | 2018-07-27 | 北京理工大学 | A kind of liquid cooling driving motor |
| CN108336865B (en) * | 2018-03-30 | 2024-03-05 | 北京理工大学 | Liquid cooling driving motor |
| CN111463942A (en) * | 2019-01-22 | 2020-07-28 | 丰田自动车株式会社 | Rotating electrical machine |
| CN111463942B (en) * | 2019-01-22 | 2022-11-18 | 丰田自动车株式会社 | Rotating electrical machine |
| CN110429763B (en) * | 2019-08-23 | 2020-12-08 | 珠海格力电器股份有限公司 | Rotor baffle, rotor subassembly, motor and vehicle |
| CN110429763A (en) * | 2019-08-23 | 2019-11-08 | 珠海格力电器股份有限公司 | A kind of rotor stop plate, rotor assembly, motor and vehicle |
| WO2021232833A1 (en) * | 2020-05-18 | 2021-11-25 | 华为数字能源技术有限公司 | Rotor, motor, power assembly, and vehicle |
| CN111769674A (en) * | 2020-05-18 | 2020-10-13 | 华为技术有限公司 | Rotor, motor, power assembly and vehicle |
| CN112636501A (en) * | 2020-11-27 | 2021-04-09 | 联合汽车电子有限公司 | Motor rotor and motor |
| CN112636501B (en) * | 2020-11-27 | 2022-04-08 | 联合汽车电子有限公司 | Motor rotor and motor |
| CN113783323A (en) * | 2021-09-15 | 2021-12-10 | 臻驱科技（上海）有限公司 | Motor stator cooling structure |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200915 Address after: Susong Road West and Shenzhen Road North, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Weilai (Anhui) Holding Co., Ltd Address before: Room 502, Bank of America Center, Cecil Harcourt Road, central, Hongkong, China, 12 Patentee before: NIO NEXTEV Ltd. |
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| TR01 | Transfer of patent right |