CN218733702U - Motor oil cooling system - Google Patents
Motor oil cooling system Download PDFInfo
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- CN218733702U CN218733702U CN202222717078.8U CN202222717078U CN218733702U CN 218733702 U CN218733702 U CN 218733702U CN 202222717078 U CN202222717078 U CN 202222717078U CN 218733702 U CN218733702 U CN 218733702U
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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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Abstract
The utility model discloses a motor oil cooling system aims at providing one kind and not only can carry out the oil spout cooling to the motor, and simple structure need not the installation moreover and spouts the oil ring, can effectual reduction cost of manufacture's motor oil cooling system. It includes: the oil inlet structure comprises an oil inlet channel arranged in the side wall of the motor shell and an oil inlet communicated with the oil inlet channel; the winding oil cooling structure comprises an oil cooling channel arranged in the side wall of the motor shell and a plurality of winding oil cooling spray holes communicated with the oil cooling channel and the inner wall of the motor shell, the oil cooling channel is communicated with the oil inlet channel, and the winding oil cooling spray holes spray oil towards a stator winding of the motor.
Description
Technical Field
The utility model relates to a motor cooling field, concretely relates to motor oil cooling system.
Background
The driving motor of the electric automobile is used as a vehicle energy conversion mechanism, the stator winding is electrified during the operation of the motor to generate energy loss, and the energy of the loss can be dissipated in the form of heat energy, so that the temperature inside the motor is increased, and the efficiency of the motor is reduced. At present, an oil injection ring is generally adopted for cooling a driving motor of an electric automobile in an oil cooling mode, and the oil injection ring injects oil towards a motor winding to cool the motor winding; adopt to spout the inboard oil spout ring of oil ring cooling need assembly motor earlier, when the cover motor stator is heated again, the sealed pad on the oil spout ring is heated yielding, appears sealed bad problem, and spouts oil ring structure complicacy, and is with high costs.
For example, chinese patent application No. 202122547272.1, the patent name is, an oil cooling structure for a driving motor of an electric vehicle, which is provided with a cooling oil ring in the middle of a motor housing, an oil injection ring and an oil injection ring at two ends of the motor housing, the oil injection ring is communicated with the cooling oil ring through a cooling oil path, the top of the cooling oil ring is communicated with an oil inlet pipe through an oil inlet hole, the oil injection ring and the oil injection ring respectively form an oil collection path and an oil collection path with inner walls at two ends of the top of the motor housing, and the oil collection path are respectively communicated with an inner cavity of the motor housing through an oil injection hole and oil injection. The application uses spray ring cooling, which also has the above disadvantages.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a not only can carry out the oil spout cooling to the motor, simple structure need not the installation oil spout ring moreover, can the cold system of motor oil of effectual reduction cost of manufacture.
The technical scheme of the utility model is that:
an electric machine oil cooling system comprising:
the oil inlet structure comprises an oil inlet channel arranged in the side wall of the motor shell and an oil inlet communicated with the oil inlet channel;
the winding oil cooling structure comprises an oil cooling channel arranged in the side wall of the motor shell and a plurality of winding oil cooling spray holes communicated with the oil cooling channel and the inner wall of the motor shell, the oil cooling channel is communicated with the oil inlet channel, and the winding oil cooling spray holes spray oil towards a stator winding of the motor.
The specific work of the motor oil cooling system is as follows, cooling oil enters the oil inlet channel through the oil inlet, then directly sprays oil towards the stator winding of the motor through the oil cooling channel and the winding oil cooling spray hole, takes away heat, cools the motor winding, and oil spraying cooling is carried out on the motor. Because the cold system of motor oil of this scheme is with the oil feed structure and the cold structure of winding oil directly set up on motor casing, its simple structure need not to install and spouts the oil ring, can effectual reduction cost of manufacture to do not deposit sealed the pad on spouting the oil ring and be heated yielding, and the sealed bad problem appears.
Preferably, the rotating shaft of the motor is horizontally distributed, and the winding oil cooling spray holes are positioned above the stator windings. So, after the cooling oil passes through the cold orifice of winding oil and spouts the oil towards the stator winding of motor, the cooling oil will be under the dead weight effect, and top-down flows down along the stator winding, cools off the stator winding that is located the stator tip.
Preferably, the number of the winding oil cooling structures is two, one winding oil cooling structure is close to one end of the stator, and the other winding oil cooling structure is close to the other end of the stator. So, cool the stator winding that is located the stator both ends respectively through two winding oil structures, effectively improve the cooling effect to stator winding.
Preferably, the oil cooling channel is positioned on the upper part of the side wall of the motor shell, the oil cooling channel is vertical to a rotating shaft of the motor, and the winding oil cooling spray holes in the same winding oil cooling structure are sequentially distributed along the axial direction of the oil cooling channel. So, be favorable to the overall arrangement of oil cooling passageway, simultaneously, make each winding oil cooling orifice in the same winding oil cooling structure can carry out the oil spout cooling to different positions stator winding.
Preferably, the oil inlet channel is located on the upper portion of the side wall of the motor housing. So, be favorable to the overall arrangement of oil feed passageway, make oil cooling passageway and oil feed passageway intercommunication.
Preferably, the motor further comprises a stator oil cooling structure, the stator oil cooling structure comprises a stator oil cooling spray hole communicated with the oil inlet channel and the inner wall of the motor shell, the stator oil cooling spray hole is located between two ends of the stator, and the stator oil cooling spray hole sprays oil towards the outer wall of the stator of the motor. So, the cooling oil in the oil feed passageway can be through the cold orifice of stator oil towards the outer wall oil spout of the stator of motor, directly carries out the oil spout cooling to the stator through the cold structure of stator oil.
Preferably, the stator oil cooling structure further comprises an annular oil groove formed in the inner wall of the motor shell, and the stator oil cooling spray holes are communicated with the bottom surface of the annular oil groove. So, can flow through the annular oil groove through the cold orifice spun cooling oil of stator oil to the area of contact of increase cooling oil and stator improves the cooling effect to the stator.
Preferably, the oil inlet channels are distributed along the axial extension of the electric machine. The oil inlet channel is arranged in such a way, so that the manufacturing of the oil inlet channel is facilitated.
As preferred, the oil feed structure is still including setting up the oil feed bulge on motor casing's lateral wall, and the oil feed bulge is integrated into one piece structure with motor casing, oil feed passageway and oil inlet all set up in the oil feed bulge. Therefore, the oil inlet structure can be distributed under the condition of not damaging the structure of the motor shell; meanwhile, the cross-sectional shape and size of the oil inlet bulge can be adjusted according to different inner diameters of the oil inlet channels, and actual manufacturing is facilitated.
Preferably, the winding oil cooling structure further comprises an oil cooling bulge arranged on the outer side wall of the motor shell, the oil cooling bulge and the motor shell are of an integrally formed structure, and the oil cooling channel is arranged in the oil cooling bulge. Therefore, the winding oil cooling structure can be arranged without damaging the structure of the motor shell; meanwhile, the cross-sectional shape and size of the oil cooling protrusion part can be adjusted according to different inner diameters of the oil cooling channels, and actual manufacturing is facilitated.
The beneficial effects of the utility model are that: not only can carry out the oil spout cooling to the motor, simple structure need not to install the oil spout ring moreover, can effectual reduction cost of manufacture.
Drawings
Fig. 1 is a schematic structural diagram of an oil cooling system of an electric machine according to the present invention.
Fig. 2 isbase:Sub>A schematic cross-sectional view taken along linebase:Sub>A-base:Sub>A in fig. 1.
Fig. 3 is a schematic cross-sectional view at B-B in fig. 1.
In the figure:
the oil inlet structure 1 comprises an oil inlet channel 1.0, an oil inlet 1.1 and an oil inlet bulge 1.2;
the winding oil cooling structure comprises a winding oil cooling structure 2, an oil cooling channel 2.0, a winding oil cooling spray hole 2.1 and an oil cooling bulge 2.2;
the stator oil cooling structure 3, the stator oil cooling spray holes 3.1 and the annular oil groove 3.2;
a motor housing 4;
Detailed Description
The first embodiment is as follows: as shown in fig. 1, fig. 2 and fig. 3, an oil cooling system for an electric motor includes an oil inlet structure 1 and a winding oil cooling structure 2. The oil inlet structure comprises an oil inlet channel 1.0 arranged in the side wall of the motor shell 4 and an oil inlet 1.1 communicated with the oil inlet channel. In this embodiment, the oil inlet is close to the one end of oil feed passageway, and of course, the oil inlet also can be located the middle part or other positions of oil feed passageway. The winding oil cooling structure 2 comprises an oil cooling channel 2.0 arranged in the side wall of the motor shell and a plurality of winding oil cooling spray holes 2.1 communicated with the oil cooling channel and the inner wall of the motor shell. The oil cooling channel is communicated with the oil inlet channel. The winding oil cold spray hole sprays oil towards the stator winding 5.1 of the motor. The specific work of the motor oil cooling system of this embodiment is as follows, cooling oil gets into the oil feed passageway through the oil inlet, then directly towards the stator winding oil spout of motor through oil cooling passageway and winding oil cooling orifice, takes away the heat, cools off the motor winding to the realization is sprayed oil and is cooled off the motor. Because the cold system of motor oil of this scheme directly sets up oil feed structure and winding oil cold structure on motor casing, its simple structure need not to install and spouts the oil ring, can effectual reduction cost of manufacture to do not deposit sealed the pad on spouting the oil ring and be heated yielding, and appear sealed bad problem.
Specifically, the rotating shaft of the motor is horizontally distributed, and the winding oil cooling spray holes 2.1 are positioned above the stator winding. And winding oil cold spray holes spray oil downwards. So, after the cooling oil passes through the cold orifice of winding oil and spouts the oil towards the stator winding of motor, the cooling oil will be under the dead weight effect, and top-down flows down along the stator winding, cools off the stator winding that is located the stator tip.
The number of the winding oil cooling structures 2 is two, one winding oil cooling structure is close to one end of the stator 5, and the other winding oil cooling structure is close to the other end of the stator. And winding oil cooling spray holes in the winding oil cooling structure spray oil towards the stator winding positioned on the outer side of the stator core. So, cool off the stator winding that is located the stator both ends respectively through two winding oil cooling structures, effectively improve the cooling effect to stator winding.
The oil cooling channel 2.0 is located at the upper part of the side wall of the motor casing. The oil cooling channel is vertical to a rotating shaft of the motor, and oil cooling spray holes of all windings in the same winding oil cooling structure are sequentially distributed along the axial direction of the oil cooling channel. In this embodiment, the same winding oil cooling structure includes five winding oil cooling nozzles distributed at equal intervals. Therefore, the layout of the oil cooling channel is facilitated, and meanwhile, oil cooling spray holes of the windings in the same winding oil cooling structure can spray oil for cooling the stator windings at different positions.
The oil inlet channel 1.0 is positioned on the upper part of the side wall of the motor shell. So, be favorable to the overall arrangement of oil feed passageway, make oil cooling passageway and oil feed passageway intercommunication.
Further, as shown in fig. 1 and 2, the oil inlet channels 1.0 are distributed along the axial extension of the motor. The oil inlet channel is arranged in such a way, so that the manufacturing of the oil inlet channel is facilitated.
Further, as shown in fig. 1 and 2, the motor oil cooling system further includes a stator oil cooling structure 3. The stator oil cooling structure comprises a stator oil cooling spray hole 3.1 communicated with the oil inlet channel and the inner wall of the motor shell. The stator oil cooling spray hole is positioned between the two ends of the stator. The stator oil cooling spray hole sprays oil towards the outer wall of the stator of the motor. So, the cooling oil in the oil feed passageway can be through the outer wall oil spout of the cold orifice of stator oil towards the stator of motor, directly carries out the oil spout cooling to the stator through the cold structure of stator oil.
The stator oil cooling structure further comprises an annular oil groove 3.2 formed in the inner wall of the motor shell, and the stator oil cooling spray holes are communicated with the bottom surface of the annular oil groove. So, the cooling oil through cold orifice spun of stator oil can flow through the annular oil groove to the area of contact of increase cooling oil and stator improves the cooling effect to the stator.
Further, as shown in fig. 1, 2 and 3, the oil inlet structure further comprises an oil inlet bulge 1.2 arranged on the outer side wall of the motor shell, and the oil inlet bulge and the motor shell are of an integrally formed structure. The oil inlet channel and the oil inlet are both arranged in the oil inlet bulge. Therefore, the oil inlet structure can be distributed under the condition of not damaging the structure of the motor shell; meanwhile, the cross-sectional shape and size of the oil inlet bulge can be adjusted according to different inner diameters of the oil inlet channels, and actual manufacturing is facilitated.
Further, as shown in fig. 1, 2 and 3, the winding oil cooling structure further includes an oil cooling protrusion 2.2 disposed on an outer side wall of the motor housing, and the oil cooling protrusion and the motor housing are integrally formed. The oil cooling channel is arranged in the oil cooling protrusion. Therefore, the winding oil cooling structure can be arranged without damaging the structure of the motor shell; meanwhile, the cross-sectional shape and size of the oil cooling protrusion part can be adjusted according to different inner diameters of the oil cooling channels, and actual manufacturing is facilitated.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and equivalent transformation of doing above embodiment the utility model discloses technical scheme's protection scope.
Claims (10)
1. An electric machine oil cooling system, characterized by includes:
the oil inlet structure comprises an oil inlet channel arranged in the side wall of the motor shell and an oil inlet communicated with the oil inlet channel;
the winding oil cooling structure comprises an oil cooling channel arranged in the side wall of the motor shell and a plurality of winding oil cooling spray holes communicated with the oil cooling channel and the inner wall of the motor shell, the oil cooling channel is communicated with the oil inlet channel, and the winding oil cooling spray holes spray oil towards a stator winding of the motor.
2. The oil cooling system of claim 1, wherein the shaft of the motor is horizontally disposed, and the winding oil cooling holes are located above the stator windings.
3. The oil cooling system of claim 2, wherein the number of the winding oil cooling structures is two, one of the winding oil cooling structures is near one end of the stator, and the other winding oil cooling structure is near the other end of the stator.
4. The oil cooling system of claim 2 or 3, wherein the oil cooling channel is located on the upper portion of the side wall of the motor housing, the oil cooling channel is perpendicular to the rotating shaft of the motor, and the oil cooling spray holes of the windings in the same winding oil cooling structure are distributed in sequence along the axial direction of the oil cooling channel.
5. An electric machine oil cooling system as claimed in claim 2 or 3, wherein the oil inlet passage is located in an upper portion of a side wall of the machine housing.
6. The system of claim 1, 2 or 3 further comprising a stator oil cooling structure, wherein the stator oil cooling structure comprises a stator oil cooling orifice communicating the oil inlet channel with the inner wall of the motor housing, the stator oil cooling orifice is located between the two ends of the stator, and the stator oil cooling orifice sprays oil toward the outer wall of the stator of the motor.
7. The system of claim 6, wherein the stator oil cooling structure further comprises an annular oil groove formed in the inner wall of the motor housing, and the stator oil cooling holes are communicated with the bottom surface of the annular oil groove.
8. An electric machine oil cooling system as claimed in claim 1, 2 or 3, wherein said oil inlet passage extends axially of the electric machine.
9. The motor oil cooling system as claimed in claim 1, 2 or 3, wherein the oil inlet structure further comprises an oil inlet bulge arranged on the outer side wall of the motor shell, the oil inlet bulge and the motor shell are of an integrally formed structure, and the oil inlet channel and the oil inlet are both arranged in the oil inlet bulge.
10. The oil cooling system of claim 1, 2 or 3, wherein the winding oil cooling structure further comprises an oil cooling protrusion disposed on an outer sidewall of the motor housing, the oil cooling protrusion and the motor housing being integrally formed, the oil cooling channel being disposed in the oil cooling protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222717078.8U CN218733702U (en) | 2022-10-14 | 2022-10-14 | Motor oil cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222717078.8U CN218733702U (en) | 2022-10-14 | 2022-10-14 | Motor oil cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218733702U true CN218733702U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222717078.8U Active CN218733702U (en) | 2022-10-14 | 2022-10-14 | Motor oil cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218733702U (en) |
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2022
- 2022-10-14 CN CN202222717078.8U patent/CN218733702U/en active Active
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