CN106787452A - A kind of oil-cooled motor - Google Patents
A kind of oil-cooled motor Download PDFInfo
- Publication number
- CN106787452A CN106787452A CN201510819697.XA CN201510819697A CN106787452A CN 106787452 A CN106787452 A CN 106787452A CN 201510819697 A CN201510819697 A CN 201510819697A CN 106787452 A CN106787452 A CN 106787452A
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- cooling
- cooling duct
- stator
- oil
- cooled motor
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Abstract
The invention provides a kind of oil-cooled motor, including rotor assembly and stator module, the stator module includes stator winding, also include the cooling component cooled down for the end to stator winding, the cooling component includes the cooling duct for cooling medium to be delivered to stator winding end, the liquid feeding end of the cooling duct is connected with outside cooling source, and the outlet end of the cooling duct is located at the both ends position of the stator winding.The present invention has the advantages that cooling controllability high, good cooling results, is simple to manufacture.
Description
Technical field
The present invention relates to motor cooling technology field, more particularly to a kind of oil-cooled motor.
Background technology
With the development and progress of science and technology, motor progressively develops to small size, high power density, and this results in right
The heat-sinking capability of motor proposes requirement higher.The high heat of motor directly affects the life-span of motor insulation material
And the reliability of motor operation, especially for magneto, high temperature will increase permanent magnet demagnetization risk, and
The performance of permanent magnet can be reduced.Because the location of motor stator winding end can not directly transmit heat with extraneous
Amount, the temperature of stator winding end is the maximum temperature point of whole motor.
In order to solve the above-mentioned technical problem existing cooling device, is led using cooling medium is set on rotor
To device, the oil that will first be ejected into rotor end-face is collected and is oriented to, and then will be cooled down using the centrifugal force of rotor and is situated between
Matter is thrown to stator winding end, so as to reach the purpose of cooling stator winding end.To be cooled down using centrifugal force and be situated between
Matter is thrown to the mode of stator winding end, and its cooling effectiveness effect depends on the rotating speed of rotor motor, in electricity
Cooling medium is short of power when machine rotating speed is relatively low cannot reach stator winding end, and end cooling effectiveness is low, and logical
Cross rotor centrifugal force and get rid of oil so that the flow direction of cooling medium has randomness, it is impossible to ensure cooling effect.
The content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, there is provided a kind of controllability is high, cooling
The good oil-cooled motor of effect.
In order to solve the above technical problems, technical scheme proposed by the present invention is：
A kind of oil-cooled motor, including rotor assembly and stator module, the stator module include stator winding, also
Including the cooling component cooled down for the end to stator winding, the cooling component is included for that will cool down
Medium is delivered to the cooling duct of stator winding end, and the liquid feeding end of the cooling duct is connected with outside cooling
Source, the outlet end of the cooling duct is located at the both ends position of the stator winding.
As the further improvement of above-mentioned technical proposal：
The stator module also includes stator casing, and the cooling duct includes the on the stator casing
One cooling duct.
The stator casing include shell body and inner housing, first cooling duct be formed at the shell body with
Between inner housing, the liquid feeding end of first cooling duct is located on the shell body, first cooling duct
Outlet end on the inner housing.
The outer wall of the inner housing be provided with it is close-fitting with shell body inwall put liquid bath, the liquid bath of putting is along described
Inner housing it is circumferentially disposed.
The stator module also includes the end cap located at stator casing two ends, and the rotor assembly includes rotating shaft, institute
Stating cooling duct also includes the second cooling duct in the rotating shaft and end cap.
First cooling duct and the same outside cooling source of the second cooling duct connection.
The liquid feeding end of second cooling duct is located on the end cap, the main transfusion section of second cooling duct
In the rotating shaft, and along the axial arranged of the rotating shaft, the outlet end of second cooling duct passes through institute
State rotating shaft and extend at the both ends position of the stator winding.
The rotating shaft is provided with the two groups of mounting seats extended at the position of stator winding both ends, second cooling
Passage outlet end is in the mounting seat.
The rotor assembly also includes the rotor core being installed in rotating shaft, and mounting seat described in two groups is divided into described
The two ends of rotor core.
The bottom of the stator casing is provided with the apocenosis passage for cooling medium to be discharged.
Compared with prior art, the advantage of the invention is that：
The present invention sets a cooling duct, the liquid feeding end outside cooling source of connection of cooling duct, and cooling duct goes out
Liquid end be located at stator winding both ends position at, can external pressure effect under introduce cooling medium to stator around
Group both ends are cooled down, and cooling effectiveness is adjusted by the pressure and flow of outside cooling source, it is to avoid turned by motor
The low problem of cooling effectiveness caused by oil is got rid of in speed control, and controllability is high；And cooling duct is directly defeated by cooling medium
Deliver to the end of stator winding, it is to avoid it is random to get rid of cooling medium flow direction caused by oil using rotor centrifugal force
Problem, cooling is with strong points, improves cooling effect and equipment performance.
It is of the invention that inner housing is further set, and set on inner housing and put liquid bath with shell body coordinates, it is to avoid
The problems such as manufacturing difficult caused by cooling duct directly is set on stator casing, its simple structure, low cost.
Brief description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein：
Fig. 1 is the structural representation of the embodiment of the present invention 1；
Fig. 2 is the structural representation of the embodiment of the present invention 2.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not drawn according to actual ratio.
Each label is represented in figure：
1st, rotor assembly；11st, rotating shaft；12nd, rotor core；2nd, stator module；21st, stator winding；22、
Stator casing；221st, shell body；222nd, inner housing；23rd, end cap；24th, stator core；3rd, cool down logical
Road；31st, the first cooling duct；32nd, the second cooling duct；33rd, oil storage accommodating area；4th, liquid bath is put；5、
Mounting seat；6th, apocenosis passage；7th, bearing.
Specific embodiment
Under the present invention will be described in further details with reference to Figure of description and specific embodiment.
Embodiment 1
As shown in figure 1, the oil-cooled motor of the present embodiment, oil-cooled motor is permagnetic synchronous motor, oil-cooled motor bag
Rotor assembly 1 and stator module 2 are included, rotor assembly 1 is installed on stator module 2 by bearing 7, stator
Component 2 is located at the periphery of rotor assembly 1, and stator module 2 includes stator winding 21 and stator core 24, fixed
Sub- winding 21 is in stator core 24.Oil-cooled motor also includes cooling component, and cooling component is used for stator
The end of winding 21 is cooled down, and cooling component includes cooling duct 3, and cooling duct 3 is used for cooling medium
The end of stator winding 21 is delivered to, in the present embodiment, cooling medium is cooling oil, cooling duct 3 is entered
Liquid end is connected with outside cooling source, and the outlet end of cooling duct 3 is located at the both ends position of stator winding 21.
The present invention sets cooling duct 3, the liquid feeding end outside cooling source of connection of cooling duct 3, and cooling duct 3 goes out
Liquid end is located at the both ends position of stator winding 21, you can introduce cooling medium pair under external pressure effect
The both ends of stator winding 21 are cooled down, and cooling effectiveness is adjusted by the pressure and flow of outside cooling source, it is to avoid
The low problem of cooling effectiveness caused by oil is got rid of by motor speed control, controllability is high；And cooling duct 3 will be cold
But medium is fed directly to the end of stator winding 21, it is to avoid cooled down caused by getting rid of oil using rotor centrifugal force
The problems such as medium flow direction is random, cooling is with strong points, effectively increases cooling effect and equipment performance.
In the present embodiment, stator module 2 also includes stator casing 22, and cooling duct 3 includes the first cooling duct
31, on stator casing 22, the first cooling duct 31 can be used for stator core for the first cooling duct 31
24 are cooled down.
Such as Fig. 1, in the present embodiment, stator casing 22 includes shell body 221 and inner housing 222, the first cooling
Passage 31 is formed between shell body 221 and inner housing 222, and the liquid feeding end of the first cooling duct 31 is located at outer
On housing 221, the outlet end of the first cooling duct 31 is located on inner housing 222, the first cooling duct 31
Outlet end is two, and two outlet ends are respectively arranged on the top at the both ends of stator winding 21.
In the present embodiment, the outer wall of inner housing 222 is provided with puts liquid bath 4, puts liquid bath 4 and the inwall of shell body 221
It is fitted close, forms the first cooling duct 31, put liquid bath 4 along the circumferentially disposed of inner housing 222, puts liquid bath 4
Setting the shell body 221 can be directly used cylindrical structure, it is to avoid passage directly is set on shell body 221
The problems such as caused manufacture difficulty, its simple structure, low cost.
In the present embodiment, stator module 2 also includes end cap 23, and end cap 23 is located at the two ends of stator casing 22,
A seal cavity is formed, rotor assembly 1 includes rotating shaft 11 and rotor core 12, and rotor core 12 is fixedly mounted
In in rotating shaft 11, cooling duct 3 also includes the second cooling duct 32, and the second cooling duct 32 is located at rotating shaft
11 and end cap 23 on.
Such as Fig. 1, in the present embodiment, on end cap 23, second cools down the liquid feeding end of the second cooling duct 32
The main transfusion section of passage 32 in the rotating shaft 11, the main transfusion section of the second cooling duct 32 along rotating shaft 11 axle
To arrangement, the liquid feeding end of the second cooling duct 32 is provided with oil storage accommodating area 33 near the side of main transfusion section, the
The outlet end of two cooling ducts 32 passes through rotating shaft 11 and extends at the both ends position of stator winding 21, this
In embodiment, the outlet end of the second cooling duct 32 is two, and two outlet ends are respectively arranged in mounting seat 5.
In other embodiments, according to actual cooling can need that outlet end quantity is adjusted flexibly, such as can be in mounting seat 5
Multiple outlet ends are set.
In the present embodiment, rotating shaft 11 is provided with two groups of mounting seats 5, and two groups of mounting seats 5 are respectively arranged on rotor core
12 two ends, and two groups of mounting seats 5 are extended at the both ends position of stator winding 21, mounting seat 5 is disk
Structure；The outlet end of the second cooling duct 32 is fluid hole, and fluid hole is located in mounting seat 5, mounting seat 5
Setting be easy to cool down the end of stator winding 21.In the present embodiment, a diameter of 2mm of fluid hole,
In other embodiments, the diameter of fluid hole is adjusted also dependent on situation.
In the present embodiment, the bottom of stator casing 22 is provided with apocenosis passage 6, and apocenosis passage 6 is used for the cold of heat
But medium discharge, apocenosis passage 6 is on shell body 221.In the present embodiment, apocenosis passage 6, first is cold
But passage 31, the second cooling duct 32 can manufacture work using machining, welding or casting technique realization
Skill is simple, low cost.
In the present embodiment, extraneous cooling oil enters the first cooling duct 31, when cooling oil is full of the first cooling duct
After 31, just sprayed from the outlet end of the first cooling duct 31, while the cooling oil in the first cooling duct 31 rises
To the effect of cooling stator core 24, played directly from the cooling oil of the outlet end ejection of the first cooling duct 31
The effect of cooling stator winding 21 end；Meanwhile, extraneous cooling oil enters the second cooling duct 32, in pressure
The end for being ejected into stator winding 21 by the outlet end of the second cooling duct 32 down directly cools down stator winding 21
End.
Embodiment 2
Fig. 2 shows another oil-cooled motor embodiment of the invention, the present embodiment and the upper basic phase of an embodiment
Together, difference is the liquid feeding end of first cooling duct 31 of the present embodiment and the liquid feeding end of the second cooling duct 32
Connection, and provide cooling medium, simple structure by same outside cooling source.
Although by reference to preferred embodiment, invention has been described, is not departing from the scope of the present invention
In the case of, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, only
Otherwise there is structural hazard, the every technical characteristic being previously mentioned in each embodiment can have been combined in any way
Come.The invention is not limited in specific embodiment disclosed herein, but including falling within the scope of the appended claims
All technical schemes.
Claims (10)
1. a kind of oil-cooled motor, including rotor assembly and stator module, the stator module include stator winding,
Characterized in that, also including the cooling component cooled down for the end to stator winding, the cooling component
Including the cooling duct for cooling medium to be delivered to stator winding end, the liquid feeding end of the cooling duct connects
Outside cooling source is connected to, the outlet end of the cooling duct is located at the both ends position of the stator winding.
2. oil-cooled motor according to claim 1, it is characterised in that the stator module also includes stator
Shell, the cooling duct includes the first cooling duct on the stator casing.
3. oil-cooled motor according to claim 2, it is characterised in that the stator casing includes shell body
And inner housing, first cooling duct is formed between the shell body and inner housing, and first cooling is logical
On the shell body, the outlet end of first cooling duct is on the inner housing for the liquid feeding end in road.
4. oil-cooled motor according to claim 3, it is characterised in that the outer wall of the inner housing be provided with
Shell body inwall is close-fitting to put liquid bath, and the liquid bath of putting is along the circumferentially disposed of the inner housing.
5. the oil-cooled motor according to claim 2 to 4 any one, it is characterised in that the stator pack
Part also includes the end cap located at stator casing two ends, and the rotor assembly includes rotating shaft, and the cooling duct is also wrapped
Include the second cooling duct in the rotating shaft and end cap.
6. oil-cooled motor according to claim 5, it is characterised in that first cooling duct and second
The same outside cooling source of cooling duct connection.
7. oil-cooled motor according to claim 5, it is characterised in that the feed liquor of second cooling duct
On the end cap, the main transfusion section of second cooling duct is located in the rotating shaft at end, and along described turn
Axle it is axial arranged, the outlet end of second cooling duct is through the rotating shaft and extends to the stator winding
Both ends position at.
8. oil-cooled motor according to claim 7, it is characterised in that the rotating shaft be provided with extend to it is fixed
Two groups of mounting seats at the position of sub- winding both ends, second cooling duct outlet end is located at the mounting seat
On.
9. oil-cooled motor according to claim 8, it is characterised in that the rotor assembly also includes installing
In the rotor core in rotating shaft, mounting seat described in two groups is divided into the two ends of the rotor core.
10. the oil-cooled motor according to claim 2 to 4 any one, it is characterised in that the stator
The bottom of shell is provided with the apocenosis passage for cooling medium to be discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510819697.XA CN106787452A (en) | 2015-11-23 | 2015-11-23 | A kind of oil-cooled motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510819697.XA CN106787452A (en) | 2015-11-23 | 2015-11-23 | A kind of oil-cooled motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106787452A true CN106787452A (en) | 2017-05-31 |
Family
ID=58963189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510819697.XA Pending CN106787452A (en) | 2015-11-23 | 2015-11-23 | A kind of oil-cooled motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN106787452A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109617319A (en) * | 2019-02-01 | 2019-04-12 | 清华大学 | Oily air-cooled structure in a kind of flat wire motor slot |
| CN110224550A (en) * | 2018-03-02 | 2019-09-10 | 本田技研工业株式会社 | Rotating electric machine |
| WO2019184580A1 (en) * | 2018-03-30 | 2019-10-03 | 北京理工大学 | Liquid cooling drive motor for vehicles |
| CN110535261A (en) * | 2018-05-25 | 2019-12-03 | 中车株洲电力机车研究所有限公司 | A kind of magneto with heat sinking function |
| CN111384805A (en) * | 2018-12-26 | 2020-07-07 | 本田技研工业株式会社 | Rotating electrical machine |
| CN111769691A (en) * | 2020-07-09 | 2020-10-13 | 清华大学 | High-power-density motor cooled by released low-temperature medium |
| WO2022037263A1 (en) * | 2020-08-18 | 2022-02-24 | 中国第一汽车股份有限公司 | Oil-water combined cooling electric motor system, and vehicle |
| US11780319B2 (en) | 2020-04-07 | 2023-10-10 | Deere & Company | Work vehicle electric drive assembly cooling arrangement |
| US11787275B2 (en) | 2020-06-10 | 2023-10-17 | Deere & Company | Electric drive with hydraulic mounting interface |
| US11811296B2 (en) | 2020-02-12 | 2023-11-07 | Deere & Company | Electric machine with configurable stator/rotor cooling |
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| CN104079131A (en) * | 2013-03-29 | 2014-10-01 | 株式会社电装 | Rotary electric machine with segment type of stator winding |
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| JP2007336646A (en) * | 2006-06-13 | 2007-12-27 | Toshiba Corp | Rotary electric machine |
| US7834492B2 (en) * | 2006-07-31 | 2010-11-16 | Caterpillar Inc | Electric machine having a liquid-cooled rotor |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224550A (en) * | 2018-03-02 | 2019-09-10 | 本田技研工业株式会社 | Rotating electric machine |
| US10951093B2 (en) | 2018-03-02 | 2021-03-16 | Honda Motor Co., Ltd. | Rotary electric machine with liquid coolant |
| WO2019184580A1 (en) * | 2018-03-30 | 2019-10-03 | 北京理工大学 | Liquid cooling drive motor for vehicles |
| CN110535261A (en) * | 2018-05-25 | 2019-12-03 | 中车株洲电力机车研究所有限公司 | A kind of magneto with heat sinking function |
| CN111384805A (en) * | 2018-12-26 | 2020-07-07 | 本田技研工业株式会社 | Rotating electrical machine |
| CN109617319A (en) * | 2019-02-01 | 2019-04-12 | 清华大学 | Oily air-cooled structure in a kind of flat wire motor slot |
| US11811296B2 (en) | 2020-02-12 | 2023-11-07 | Deere & Company | Electric machine with configurable stator/rotor cooling |
| US11780319B2 (en) | 2020-04-07 | 2023-10-10 | Deere & Company | Work vehicle electric drive assembly cooling arrangement |
| US11787275B2 (en) | 2020-06-10 | 2023-10-17 | Deere & Company | Electric drive with hydraulic mounting interface |
| CN111769691A (en) * | 2020-07-09 | 2020-10-13 | 清华大学 | High-power-density motor cooled by released low-temperature medium |
| CN111769691B (en) * | 2020-07-09 | 2021-11-02 | 清华大学 | High-power-density motor cooled by released low-temperature medium |
| WO2022037263A1 (en) * | 2020-08-18 | 2022-02-24 | 中国第一汽车股份有限公司 | Oil-water combined cooling electric motor system, and vehicle |
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Application publication date: 20170531 |