CN218514182U - Driving motor rotor structure communicated with oil way - Google Patents
Driving motor rotor structure communicated with oil way Download PDFInfo
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- CN218514182U CN218514182U CN202222090563.7U CN202222090563U CN218514182U CN 218514182 U CN218514182 U CN 218514182U CN 202222090563 U CN202222090563 U CN 202222090563U CN 218514182 U CN218514182 U CN 218514182U
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- rotor
- driving motor
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- hollow shaft
- hole
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model relates to a driving motor rotor structure with oil circuit intercommunication relates to pure electric vehicles's technical field. The utility model discloses a driving motor rotor structure communicated with an oil circuit, which comprises a hollow shaft, an oil inlet pipe and a rotor iron core; the middle part of the hollow shaft is provided with a cylinder structure, the two ends of the hollow shaft are provided with blind holes extending to the cylinder structure, the inner wall of the front end of each blind hole is provided with a radial through hole, and the two ends of the rotor core are pressed on the cylinder structure through rotor end plates; the rotor end plate is provided with an annular groove, the annular groove is communicated with the radial through hole, a shaft hole is formed in the rotor iron core, the rotor iron core is provided with a plurality of axial through holes along the inner wall of the shaft hole, and the axial through holes are communicated with the annular groove. The utility model discloses a driving motor rotor structure through oil circuit direct cooling rotor core, when promoting driving motor efficiency and power density, reduces the overheated demagnetization of magnet steel and leads to the risk that driving motor performance reduces, has also promoted the driving motor reliability.
Description
Technical Field
The utility model relates to a pure electric vehicles's technical field, more specifically says, the utility model relates to a driving motor rotor structure with oil circuit intercommunication.
Background
The pure electric vehicles's that use in the existing market driving motor rotor does not have direct cooling, has the risk that the overheated demagnetization of magnet steel leads to driving motor performance to reduce.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem in the prior art, the utility model aims to provide a driving motor rotor structure with oil circuit intercommunication.
The utility model discloses a driving motor rotor structure with oil circuit intercommunication, its characterized in that: the rotor comprises a hollow shaft, an oil inlet pipe and a rotor iron core; the middle part of the hollow shaft is provided with a cylindrical structure, the two ends of the hollow shaft are provided with blind holes extending to the cylindrical structure, the inner wall of the front end of each blind hole is provided with a plurality of radial through holes communicated to the outer wall of the cylindrical structure, an oil seal is arranged between the blind hole and the outer circle of the oil inlet pipe so as to form sealing between the rotatable hollow shaft and the oil inlet pipe, and the two ends of the rotor core are pressed on the cylindrical structure through rotor end plates; the rotor end plate is provided with an annular groove, the annular groove is communicated with the radial through holes, a shaft hole is formed in the rotor iron core, the rotor iron core is provided with a plurality of axial through holes along the inner wall of the shaft hole, and the axial through holes are communicated with the annular groove.
The radial through holes are uniformly distributed on the circumference of the inner wall of the front end of the blind hole.
The axial through holes are uniformly distributed along the circumferential direction of the inner wall of the shaft hole.
Compared with the prior art, the utility model discloses a driving motor rotor structure with oil circuit intercommunication has following beneficial effect:
the utility model discloses a driving motor rotor structure through the direct cooling rotor core of oil circuit, when promoting driving motor efficiency and power density, reduces the overheated demagnetization of magnet steel and leads to the risk that driving motor performance reduces, has also promoted the driving motor reliability.
Drawings
Fig. 1 is a front sectional view of a drive motor rotor structure communicating with an oil passage of embodiment 1;
fig. 2 is an exploded view of a rotor structure of a drive motor communicating with an oil passage of embodiment 1;
FIG. 3 is a schematic structural view of a rotor structure of a drive motor communicating with an oil passage according to embodiment 1;
fig. 4 is a right side view of a left end rotor end plate in the drive motor rotor structure of embodiment 1;
fig. 5 is a right side view of a rotor core in the rotor structure of the drive motor of embodiment 1.
Detailed Description
The structure of the rotor of the driving motor connected to the oil path of the present invention will be further described below with reference to specific embodiments to help those skilled in the art understand the technical solution of the present invention more completely, accurately and deeply.
Example 1
As shown in fig. 1 to 5, the rotor structure of the driving motor communicating with the oil passage of the present embodiment includes a hollow shaft 1, an oil inlet pipe 2, and a rotor core 5. The hollow shaft 1 is provided with a cylindrical structure in the middle, blind holes 1a extending to the cylindrical structure are arranged at two ends of the hollow shaft, and a plurality of radial through holes 1b communicated to the outer wall of the cylindrical structure are arranged on the inner wall of the front end of each blind hole 1 a. The radial through holes 1b are uniformly distributed on the circumference of the inner wall of the front end of the blind hole 1 a. An oil seal 3 is provided between the blind hole 1a and the outer circumference of the oil inlet pipe 2 to form a seal between the rotatable hollow shaft 1 and the oil inlet pipe 2. And two ends of the rotor core 5 are pressed on the cylindrical structure through the rotor end plates 4. And an annular groove 4a is formed in the rotor end plate 4, and the annular groove 4a is communicated with the radial through hole 1b. Rotor core 5's inside is provided with the shaft hole, rotor core 5 along the inner wall in shaft hole is provided with a plurality of axial perforating holes 5a, a plurality of axial perforating holes 5a are along the inner wall circumferencial direction evenly distributed in shaft hole. The axial through hole 5a communicates with the annular groove 4 a.
The cooling oil flows through the oil inlet pipe 2, the left end blind hole 1a of the hollow shaft 1, the plurality of radial through holes 1b at the left end of the hollow shaft 1, the annular groove 4a of the left end rotor end plate 4 to the plurality of axial through holes 5a of the rotor core 5, and contacts and cools the rotor core 5 and flows out through the annular groove 4a of the right end rotor end plate 4, the plurality of through holes 1b at the right end of the hollow shaft 1 and the right end blind hole 1a of the hollow shaft 1.
But this embodiment with the driving motor rotor structure of oil circuit intercommunication direct cooling rotor core when promoting driving motor efficiency and power density, reduces the risk that the overheated demagnetization of magnet steel leads to the driving motor performance to reduce, promotes the driving motor reliability.
For those skilled in the art, the specific embodiments are only exemplary descriptions of the present invention, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial modifications are possible within the protection scope of the present invention as long as the method concept and technical solution of the present invention are adopted.
Claims (3)
1. The utility model provides a driving motor rotor structure with oil circuit intercommunication which characterized in that: the rotor comprises a hollow shaft, an oil inlet pipe and a rotor iron core; the middle part of the hollow shaft is provided with a cylindrical structure, the two ends of the hollow shaft are provided with blind holes extending to the cylindrical structure, the inner wall of the front end of each blind hole is provided with a plurality of radial through holes communicated to the outer wall of the cylindrical structure, an oil seal is arranged between the blind hole and the outer circle of the oil inlet pipe so as to form sealing between the rotatable hollow shaft and the oil inlet pipe, and the two ends of the rotor core are pressed on the cylindrical structure through rotor end plates; the rotor end plate is provided with an annular groove, the annular groove is communicated with the radial through holes, a shaft hole is formed in the rotor iron core, the rotor iron core is provided with a plurality of axial through holes along the inner wall of the shaft hole, and the axial through holes are communicated with the annular groove.
2. The drive motor rotor structure communicating with the oil passage according to claim 1, characterized in that: the radial through holes are uniformly distributed on the circumference of the inner wall of the front end of the blind hole.
3. The drive motor rotor structure communicating with the oil passage according to claim 1, characterized in that: the axial through holes are uniformly distributed along the circumferential direction of the inner wall of the shaft hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222090563.7U CN218514182U (en) | 2022-08-10 | 2022-08-10 | Driving motor rotor structure communicated with oil way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222090563.7U CN218514182U (en) | 2022-08-10 | 2022-08-10 | Driving motor rotor structure communicated with oil way |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218514182U true CN218514182U (en) | 2023-02-21 |
Family
ID=85209908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222090563.7U Active CN218514182U (en) | 2022-08-10 | 2022-08-10 | Driving motor rotor structure communicated with oil way |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218514182U (en) |
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2022
- 2022-08-10 CN CN202222090563.7U patent/CN218514182U/en active Active
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