CN109167451A - A kind of motor with rotor temperature equalization cooling device - Google Patents
A kind of motor with rotor temperature equalization cooling device Download PDFInfo
- Publication number
- CN109167451A CN109167451A CN201811108826.4A CN201811108826A CN109167451A CN 109167451 A CN109167451 A CN 109167451A CN 201811108826 A CN201811108826 A CN 201811108826A CN 109167451 A CN109167451 A CN 109167451A
- Authority
- CN
- China
- Prior art keywords
- stator
- shaft
- rotor
- radial slot
- outlet
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A kind of cooling device of motor, belong to motor field, including stator, rotor, shaft, shell and fan, stator core is fixed on shell, the shell further includes with the cooling path axially extended, radial slot of the cooling gas by the hollow portion of shaft Jing Guo shaft flows to axial groove, rotor core section portion and rotor radial slot are flowed through by axial groove again, stator axis side or stator radial slot are flowed to again, then stator output shaft side is flowed to through stator shaft orientation slot to be reversely discharged through outlet, outlet and guide sections part are circumferentially being arranged in identical angle position in such a way that the air being discharged from the outlet is contacted with the surface about the circumferential position for not forming above-mentioned vent passage with the surface.
Description
Technical field
Present invention design has air cooled motor, especially balances the cooling electric machine of rotor temperature.
Background technique
In traditional cooling system, the cooling performance of both rotor-side and stator side is not identical.It is complicated in stator side
Coolant channel be formed in main stator rear surface and rotor frame.The shortcomings that this structure is that cooling efficiency is not good enough, is made
It obtains and complicated coolant channel is set between stator, and is uneven along axial Temperature Distribution stator coil, rotor only leads to
Supercooling air flows through rotor surface by air gap, and rotor cooling efficiency is low, and the temperature distributing disproportionation weighing apparatus of rotor, leads to electricity
Machine part is too hot, reduces the output performance of motor.It is cold by further increasing rotor therefore, it is necessary to develop a kind of structure
But it efficiency and further increases the cooling efficiency of cooling channel of rotor side and realizes uniform cooling, this is complicated and expensive
's.The shortcomings that original technology in order to eliminate the prior art, simultaneously effectively cools down motor.In the present invention, stop from traditional stator
Refrigerant is supplied, the inner peripheral surface for blowing to stator will be cooled down by the radial passage being arranged in rotor core, to cool down stator core
And stator coil, stator have the cooling gas outlet and inversion component being arranged in axis side, the inversion component makes outlet
The air of discharge is flowed towards output shaft opposite side.
Summary of the invention
Therefore, it is an object of that present invention to provide the cooling devices of electric machine rotor temperature equalization, improve motor cooling efficiency.
To achieve the goals above, a kind of cooling device of motor, including stator, rotor, shaft, shell and fan, institute
It states rotor to be embedded on the inside of stator, shaft is inserted on the inside of rotor, and the shaft is hollow axle, is opened in the hollow section portion of shaft
Equipped with a shaft radial slot, the hollow portion of one end connection hollow axle of radial slot, the other end connection of the radial slot turns
The axial groove opened up on axis outer peripheral surface, the rotor include rotor core, offer rotor radial slot among the shaft iron core,
The rotor radial slot and axial groove connection, and be aligned with the intermediate rotary shaft radial slot of shaft radial slot, the stator includes fixed
Sub- iron core and stator winding, the stator core offer stator radial slot along axially intermediate, while outside stator core
Circumference is provided with stator shaft orientation slot, and stator core is fixed on shell, and the shell further includes with the cooling road axially extended
Diameter, radial slot of the cooling gas by the hollow portion of shaft Jing Guo shaft flows to axial groove, then flows through rotor by axial groove
Core packet portion and rotor radial slot, then stator axis side or stator radial slot are flowed to, it is defeated then to flow to stator through stator shaft orientation slot
Shaft side is reversely discharged through outlet, and outlet and guide sections part do not have with the air being discharged from the outlet with about circumferential
There are the mode to form the contact of the surface at the position of above-mentioned vent passage and the surface being circumferentially arranged in identical angle position.
It is arranged by the cooling path, stator and rotor have obtained sufficient cooling, and improve stator and rotor cooling
Temperature
Harmony.
According to an embodiment of the invention, stator has the cooling gas outlet and inversion component being arranged in axis side, it is described
The air that outlet is discharged in inversion component is flowed towards output shaft opposite side.
According to an embodiment of the invention, the centre of shaft, the length of length and rotor core is arranged in the axial groove
Ratio be 1.05:1.
According to an embodiment of the invention, three shaft radial slots are symmetrical relative to axial groove.
According to an embodiment of the invention, the shaft radial slot is circular cross-section.
According to the present invention, it has the effect that
The temperature of stator coil is reduced by uniformly cooling, and maximum temperature can reduce, and by inversion component, have
The cooling motor stator of effect.
The coolant channel of stator side is eliminated, and the simplification and uniformly cooling effect, cost due to structure can reduce.
Hollow shaft is arranged in rotor, improves the cooling effect inside rotor, meanwhile, reduce the manufacturing cost of shaft.
Detailed description of the invention
Fig. 1 is to indicate structural schematic diagram of the invention.
Fig. 2 is to indicate present invention discharge air discharge path.
Specific embodiment
To achieve the goals above, a kind of cooling device of motor, including stator 1, rotor 2, shaft 3, shell 4 and fan
5, the rotor is embedded on the inside of stator, and shaft is inserted on the inside of rotor, and the shaft is hollow axle, in the hollow portion 6 of shaft
Section portion offers a shaft radial slot 7, the hollow portion of one end connection hollow axle of radial slot, the other end of the radial slot
The axial groove 8 opened up on connection shaft outer peripheral surface, the rotor includes rotor core, offers rotor among the shaft iron core
Radial slot 9, the rotor radial slot and axial groove connection, and be aligned with the intermediate rotary shaft radial slot of shaft radial slot, it is described fixed
Attached bag includes stator core and stator winding 12, the stator core along it is axial it is intermediate offer stator radial slot 13,14, while
It is provided with stator shaft orientation slot 15 close to stator core outer circumferential sides, stator core is fixed on shell 4, and the shell further includes with edge
Axially extending cooling path, radial slot of the cooling gas by the hollow portion of shaft Jing Guo shaft flow to axial groove, then
Rotor core section portion and rotor radial slot are flowed through by axial groove, then flow to stator axis side or stator radial slot, then through stator
Axial groove flows to stator output shaft side and is reversely discharged through outlet 16, and outlet and guide sections part 10 from the outlet to arrange
The mode that air out is contacted with the surface about the circumferential position for not forming above-mentioned vent passage is with the surface in circumferential setting
In identical angle position, i.e., discharge path as shown in Figure 2 is discharged air along stator peripheral, axial and flows to stator end, edge
90 degree of stator end turn back after through guide member by air from outlet be discharged, the circulating direction of air is discharged along stator axis
To the approximately mid way between of shell one end is arranged in the guide member.
Stator has the cooling gas outlet and inversion component being arranged in axis side, and outlet is discharged in the inversion component
Air towards output shaft opposite side flow.According to an embodiment of the invention, stator has the cooling gas being arranged in axis side
Outlet and inversion component, the air that outlet is discharged in the inversion component 10 are flowed towards output shaft opposite side.
According to an embodiment of the invention, the centre of shaft, the length of length and rotor core is arranged in the axial groove
Ratio be 1.05:1.
According to an embodiment of the invention, three shaft radial slots are symmetrical relative to axial groove.
According to an embodiment of the invention, the shaft radial slot is circular cross-section.
Finally, it should be noted that obviously, the above embodiment is merely an example for clearly illustrating the present invention, and simultaneously
The non-restriction to embodiment.For those of ordinary skill in the art, it can also do on the basis of the above description
Other various forms of variations or variation out.There is no necessity and possibility to exhaust all the enbodiments.And thus drawn
The obvious changes or variations that Shen goes out are still in the protection scope of this invention.
Claims (6)
1. a kind of cooling device of motor, it is characterised in that: including stator, rotor, shaft, shell and fan, the rotor is embedding
Enter on the inside of stator, shaft is inserted on the inside of rotor, and the shaft is hollow axle, offers one in the hollow section portion of shaft
Shaft radial slot, the hollow portion of one end connection hollow axle of radial slot, the other end of the radial slot connect shaft outer peripheral surface
On the axial groove that opens up, the rotor includes rotor core, and rotor radial slot, the rotor are offered among the shaft iron core
Radial slot and axial groove connection, and be aligned with the intermediate rotary shaft radial slot of shaft radial slot, the stator include stator core and
Stator winding, the stator core offers stator radial slot along axially intermediate, while opening close to stator core outer circumferential sides
There is stator shaft orientation slot, stator core is fixed on shell, and the shell further includes having the cooling path axially extended, described cold
But radial slot of the gas by the hollow portion of shaft Jing Guo shaft flows to axial groove, then by axial groove flow through rotor core section portion and
Rotor radial slot, then stator axis side or stator radial slot are flowed to, then stator output shaft side is flowed to through arranging through stator shaft orientation slot
The reversed discharge in outlet, outlet and guide sections part with the air that be discharged from the outlet with do not formed about circumferential direction it is above-mentioned
The mode of the surface contact at the position of vent passage and the surface are circumferentially being arranged in identical angle position.
2. the cooling device of motor according to claim 1, it is characterised in that: stator has the cooling air being arranged in axis side
Body outlet and inversion component, the air that outlet is discharged in the inversion component are flowed towards output shaft opposite side.
3. the cooling device of motor according to claim 2, it is characterised in that: the axial groove is arranged in shaft
Between, the ratio of the length of length and rotor core is 1.05:1.
4. the cooling device of motor according to claim 3, it is characterised in that: three shaft radial slots are relative to axis
It is symmetrical to slot.
5. the cooling device of motor according to claim 4, it is characterised in that: the shaft radial slot is circular cross-section.
6. the cooling device of motor according to claim 5, it is characterised in that: the shaft radial slot, rotor radial slot
And stator radial slot is radially aligned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108826.4A CN109167451A (en) | 2018-09-21 | 2018-09-21 | A kind of motor with rotor temperature equalization cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108826.4A CN109167451A (en) | 2018-09-21 | 2018-09-21 | A kind of motor with rotor temperature equalization cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109167451A true CN109167451A (en) | 2019-01-08 |
Family
ID=64880292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811108826.4A Pending CN109167451A (en) | 2018-09-21 | 2018-09-21 | A kind of motor with rotor temperature equalization cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109167451A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110011448A (en) * | 2019-04-16 | 2019-07-12 | 珠海格力电器股份有限公司 | permanent magnet motor, compressor and air conditioner |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0199450A (en) * | 1987-10-12 | 1989-04-18 | Fuji Electric Co Ltd | Vertical-shaft motor |
| CN1722575A (en) * | 2004-03-22 | 2006-01-18 | 通用汽车公司 | Electromotor/dynamo and method for cooling mechanical-electrical type transmission |
| JP2013013182A (en) * | 2011-06-28 | 2013-01-17 | Aisin Seiki Co Ltd | Cooling structure for motor |
| CN203086307U (en) * | 2012-04-25 | 2013-07-24 | 山西北方机械制造有限责任公司 | Permanent magnet synchronous motor with ventilation structure |
| CN103715787A (en) * | 2012-09-28 | 2014-04-09 | 发那科株式会社 | Motor having air-cooling structure |
| EP2757666A1 (en) * | 2013-01-17 | 2014-07-23 | Siemens Aktiengesellschaft | Improved cooling of an electrical machine |
| US20150048699A1 (en) * | 2013-08-16 | 2015-02-19 | Hamilton Sundstrand Corporation | Generators with open loop active cooling |
| CN204290622U (en) * | 2014-12-26 | 2015-04-22 | 四川宏华电气有限责任公司 | A kind of motor ventilation radiator structure |
| CN206834870U (en) * | 2017-05-31 | 2018-01-02 | 长城汽车股份有限公司 | Rotor with oil cooling structure |
| CN207117341U (en) * | 2017-06-29 | 2018-03-16 | 长城汽车股份有限公司 | Rotor and motor with oil cooling structure |
| CN108028566A (en) * | 2015-09-22 | 2018-05-11 | 西门子公司 | The cooling of electric rotating machine |
-
2018
- 2018-09-21 CN CN201811108826.4A patent/CN109167451A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0199450A (en) * | 1987-10-12 | 1989-04-18 | Fuji Electric Co Ltd | Vertical-shaft motor |
| CN1722575A (en) * | 2004-03-22 | 2006-01-18 | 通用汽车公司 | Electromotor/dynamo and method for cooling mechanical-electrical type transmission |
| JP2013013182A (en) * | 2011-06-28 | 2013-01-17 | Aisin Seiki Co Ltd | Cooling structure for motor |
| CN203086307U (en) * | 2012-04-25 | 2013-07-24 | 山西北方机械制造有限责任公司 | Permanent magnet synchronous motor with ventilation structure |
| CN103715787A (en) * | 2012-09-28 | 2014-04-09 | 发那科株式会社 | Motor having air-cooling structure |
| EP2757666A1 (en) * | 2013-01-17 | 2014-07-23 | Siemens Aktiengesellschaft | Improved cooling of an electrical machine |
| US20150048699A1 (en) * | 2013-08-16 | 2015-02-19 | Hamilton Sundstrand Corporation | Generators with open loop active cooling |
| CN204290622U (en) * | 2014-12-26 | 2015-04-22 | 四川宏华电气有限责任公司 | A kind of motor ventilation radiator structure |
| CN108028566A (en) * | 2015-09-22 | 2018-05-11 | 西门子公司 | The cooling of electric rotating machine |
| CN206834870U (en) * | 2017-05-31 | 2018-01-02 | 长城汽车股份有限公司 | Rotor with oil cooling structure |
| CN207117341U (en) * | 2017-06-29 | 2018-03-16 | 长城汽车股份有限公司 | Rotor and motor with oil cooling structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110011448A (en) * | 2019-04-16 | 2019-07-12 | 珠海格力电器股份有限公司 | permanent magnet motor, compressor and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190108 |
|
| RJ01 | Rejection of invention patent application after publication |