CN114567114A - Motor and vehicle - Google Patents
Motor and vehicle Download PDFInfo
- Publication number
- CN114567114A CN114567114A CN202210198911.4A CN202210198911A CN114567114A CN 114567114 A CN114567114 A CN 114567114A CN 202210198911 A CN202210198911 A CN 202210198911A CN 114567114 A CN114567114 A CN 114567114A
- Authority
- CN
- China
- Prior art keywords
- oil
- circumferential
- stator core
- stator winding
- shell
- 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
- 239000007921 spray Substances 0.000 claims abstract description 33
- 238000004804 winding Methods 0.000 claims description 60
- 238000003466 welding Methods 0.000 claims description 34
- 239000002826 coolant Substances 0.000 claims description 27
- 238000002955 isolation Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 135
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 229910000679 solder Inorganic materials 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000010705 motor oil Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Classifications
-
- 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
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- 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
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The embodiment of the invention provides a motor and a vehicle. The motor comprises a shell and a stator core, wherein the shell is provided with an oil inlet, an axial oil duct and a spray hole are arranged in the stator core along the axial direction of the stator core, and a circumferential oil duct and a circumferential oil cavity which are distributed along the circumferential direction of the stator core at intervals are formed on the outer wall of the stator core and the inner wall of the shell. The oil inlet is communicated with the circumferential oil duct, the circumferential oil duct is communicated with the circumferential oil cavity through the axial oil duct, one end of the spray hole is communicated with the circumferential oil cavity, and the other end of the spray hole is communicated with the inner cavity of the shell. The spray holes are formed in the stator core, and the circumferential oil channel and the circumferential oil cavity are formed by the outer wall of the stator core and the inner wall of the shell, so that parts with spray holes or oil cavity structures arranged independently are omitted, the using amount of sealing parts is reduced, the cost is saved, and the assembly of the motor is facilitated.
Description
Technical Field
The invention relates to the technical field of new energy automobile manufacturing, in particular to a motor and a vehicle.
Background
The requirement of the new energy automobile field on the motor is higher and higher, and poor heat dissipation of the motor can directly restrict the improvement of the power of the electric automobile and the electrical and mechanical properties of the motor.
At present, a motor oil channel is generally arranged on a shell or a stator core of a motor, the motor oil channel is sealed through an oil guide ring structure, so that cooling medium in the oil channel flows into an oil cavity in the oil guide ring, and the cooling medium entering the oil cavity flows to the end part of a motor winding from a spray hole in the oil guide ring under the action of oil pressure to achieve the purpose of cooling the winding.
However, in the above manner, the oil chamber and the nozzle hole are formed in the sealing member such as the oil guide ring, so that many parts are required to seal the oil passage and the oil chamber, and the assembly and the processing are difficult, and it is difficult to implement the method in mass production.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a motor and a vehicle that at least partially solve the above problems.
In order to solve the above problem, an embodiment of the present invention provides a motor including:
the oil inlet is formed in the shell;
the stator core is internally provided with an axial oil duct and a spray hole along the axial direction of the stator core, and the outer wall of the stator core is provided with a circumferential oil duct and a circumferential oil cavity which are formed in the shell body and are distributed along the circumferential direction of the stator core at intervals;
the oil inlet is communicated with the circumferential oil duct, the circumferential oil duct is communicated with the circumferential oil cavity through the axial oil duct, one end of the spray hole is communicated with the circumferential oil cavity, and the other end of the spray hole is communicated with the inner cavity of the shell.
Further embodiments of the present invention also provide a vehicle including the motor described above.
The technical scheme of each embodiment of the invention can realize at least one of the following advantages: the spray holes are formed in the stator core, and the circumferential oil channel and the circumferential oil cavity are formed by the outer wall of the stator core and the inner wall of the shell, so that parts with spray holes or oil cavity structures are omitted, the using amount of sealed parts is reduced, the cost is saved, the assembly of the motor is facilitated, and the motor is suitable for implementation of large-scale mass production projects.
Drawings
FIG. 1 is a block diagram of an electric machine of an embodiment of the present invention;
FIG. 2 is a cross-sectional structural view of an electric machine of an embodiment of the present invention;
FIG. 3 is a block diagram of a housing and stator assembly of an embodiment of the present invention;
FIG. 4 is a block diagram of a stator assembly of an embodiment of the present invention;
FIG. 5 is a partial cross-sectional structural view of an electric machine of an embodiment of the present invention;
FIG. 6 is a block diagram of a stator winding of an embodiment of the present invention;
fig. 7 is a structural view of a slinger of the embodiment of the present invention;
fig. 8 is a structural view of another slinger of the embodiment of the present invention.
Description of reference numerals:
100-rear end cover, 300-front end cover, 700-rotor core, 710-rotor end plate, 800-magnetic steel;
200-shell, 210-oil inlet, 220-oil outlet;
400-rotating shaft, 410-spraying hole on rotating shaft, 420-oil inlet on rotating shaft;
500-stator core, 510-circumferential oil duct, 520-axial oil duct, 530-circumferential oil chamber, 531-first circumferential oil chamber, 532-second circumferential oil chamber and 540-spray hole in stator core;
600-stator winding, 610-welding point, 620-outgoing line;
900-oil retainer ring, 910-oil retainer part, 920-mounting part, 921-welding point isolation groove, 922-mounting hole, 930-notch and 940-included angle between oil retaining surface of oil retainer part and inner wall of shell.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.
Referring to fig. 1, a structural view of a motor of an embodiment of the present invention is shown. The motor in the embodiment of the present invention includes a rear cover 100, a housing 200, a front cover 300, and a rotation shaft 400.
Referring to fig. 2, a cross-sectional structural view of a motor of an embodiment of the present invention is shown. The motor further comprises a stator core 500, a stator winding 600, a rotor core 700, magnetic steel 800, and a rotor end plate 710. The rotor core 700 is arranged on the outer ring of the rotating shaft 400 in an interference manner, the rotor end plates 710 are arranged at two ends of the rotor core 700, the magnetic steel 800 is embedded into the inner groove of the rotor core 700, the bearing positions are arranged at two ends of the rotating shaft 400 and fixed with the bearing inner rings, the bearing outer rings are respectively arranged on the rear end cover 100 and the front end cover 300, and the stator winding 600 is embedded into the inner groove of the stator core 500. The rotating shaft 400 of the motor is provided with an oil inlet 410, a nozzle 420 and an oil duct, and oil entering through the oil inlet 410 of the rotating shaft 400 flows to the nozzle 420 through the oil duct and is sprayed to the inner surfaces of the two ends of the stator winding 600 and the outer surface of the rotor assembly from the nozzle 420, so that the purpose of cooling the stator winding 600 and the rotor assembly is achieved.
Referring to fig. 3, a block diagram of a housing and stator assembly of an embodiment of the present invention is shown. An oil inlet 210 is formed in a housing 200 of the motor, an axial oil passage 520 and a nozzle 540 are formed in the stator core 500 along the axial direction of the stator core, a circumferential oil passage 510 and a circumferential oil cavity 530 are formed on the outer wall of the stator core 500 and the inner wall of the housing, and the circumferential oil passage 510 and the circumferential oil cavity 530 are circumferentially distributed at intervals along the circumferential direction (circumferential direction) of the stator core 500. The oil inlet 210 on the shell 200 is communicated with the circumferential oil channel 510, the circumferential oil channel 510 is communicated with the circumferential oil cavity 530 through the axial oil channel 520, one end of the spray hole 540 is communicated with the circumferential oil cavity 530, and the other end of the spray hole is communicated with the inner cavity of the shell 200.
As an example, a cooling medium such as cooling oil, cooling water, etc. may enter the circumferential oil channel 510 through the oil inlet 210 on the housing 200, flow to the circumferential oil cavity 530 through the axial oil channel 520, and the cooling medium entering the inner portion of the circumferential oil cavity 530 may be sprayed to the inner cavity of the housing 200 through the spray holes 540 under the action of oil pressure, and sprayed on the end surface of the stator winding 600, thereby cooling the stator core 500 and the stator winding 600.
In the embodiment of the invention, the spray holes 540 are arranged in the stator core 500, and the circumferential oil channel 510 and the circumferential oil cavity 530 are formed by the outer wall of the stator core 500 and the inner wall of the shell 200, so that parts for separately arranging the spray holes 540 or the oil cavity structure are omitted, the cost is saved, the use amount of sealing parts is reduced, the assembly of the motor is facilitated, and the motor is suitable for large-scale mass production project implementation. In addition, the circumferential oil channel 510 and the circumferential oil cavity 530 are formed by the outer wall of the stator core 500 and the inner wall of the housing 200, and the circumferential oil channel 510 is communicated with the circumferential oil cavity 530 through the axial oil channel 520, so that the structure of the oil channel and the oil cavity in the motor is simplified, the manufacturing of parts is easy, and the production cost of the parts is reduced.
In an embodiment of the present invention, the oil outlet passage 220 is formed at the bottom of the casing 200, and after the cooling medium sprayed at the two ends of the stator winding 600 falls to the bottom of the casing 200, the cooling medium flows into the oil outlet passage 220 at the bottom of the casing 200, and the oil outlet passage 220 is communicated with the oil outlet at the bottom of the casing 200, so that the cooling medium falling to the bottom of the casing 200 flows out of the motor through the oil outlet passage 220 and the oil outlet.
Referring to fig. 4, a block diagram of a stator assembly of an embodiment of the present invention is shown. The stator core outer wall is provided with first and second circumferential grooves which are distributed at intervals, the first and second circumferential grooves are surrounded along the circumferential direction of the stator core 500, the first circumferential groove is sealed by the inner wall of the housing 200 to form a circumferential oil passage 510, and the second circumferential groove is sealed by the inner wall of the housing 200 to form a circumferential oil chamber 530.
In an embodiment of the present invention, two second circumferential grooves are formed in the outer wall of the stator core, and the two second circumferential grooves are located on two sides of the first circumferential groove, specifically, the two second circumferential grooves of the outer wall of the stator core 500 are sealed by the inner wall of the housing 200, so that a first circumferential oil cavity 531 and a second circumferential oil cavity 532 can be formed, because the two second circumferential grooves are located on two sides of the first circumferential groove, the first circumferential oil cavity 531 and the second circumferential oil cavity 532 are located on two sides of the circumferential oil passage 510, respectively close to two ends of the stator core 500, the plurality of injection holes 540 are uniformly distributed at two ends of the stator core 500, and the first circumferential oil cavity 531 and the second circumferential oil cavity 532 are communicated with the injection holes 540 on one side far from the circumferential oil passage 510, so that the cooling medium can be injected from the injection holes 540 at two ends of the stator core 500 to the inner cavity of the housing 200.
In an embodiment of the present invention, a plurality of axial oil passages 520 are provided in the stator core 500, the plurality of axial oil passages 520 are arranged at intervals along the circumferential direction of the stator core 500, the plurality of axial oil passages 520 communicate the circumferential oil passage 510 and the circumferential oil cavity 530, a distance between the circumferential oil passage 510 and the circumferential oil cavity 530 is a length of the axial oil passage 520, and the plurality of axial oil passages 520 may uniformly disperse the cooling medium in the circumferential oil passage 510 into the circumferential oil cavities 530 on both sides of the stator core 500.
In the embodiment of the invention, the plurality of axial oil passages 520 can uniformly disperse the cooling medium in the circumferential oil passages 510 into the circumferential oil cavities 530 on both sides of the stator core 500, so that the cooling medium uniformly flows on the surface of the stator core 500, and the cooling efficiency of the stator core 500 is improved. In addition, the cooling medium in the circumferential oil channel 510 is uniformly dispersed into the circumferential oil cavities 530 on both sides of the stator core 500, so that the cooling medium in the circumferential oil cavities 530 can be simultaneously sprayed out from the plurality of spray holes 540 on both ends of the stator core 500, and is uniformly sprayed on the end surface of the stator winding 600, thereby improving the cooling efficiency of the stator winding 600.
In order to better spray the cooling medium sprayed from the spray holes at the end of the stator core 500 onto the surface of the end of the stator winding 600, an oil baffle plate or an oil baffle ring 900 or other oil baffle structures may be additionally provided in the motor, so that the cooling medium entering the inner cavity of the housing 200 is sprayed onto the surface of the end of the stator winding 600 through the oil baffle structures, thereby improving the cooling efficiency of the stator winding 600.
In an embodiment of the present invention, the motor further includes an oil baffle fixed to an end of the stator winding 600. The oil baffle plate and the nozzle holes 540 at the end of the stator core 500 are arranged at intervals, an obtuse angle (for example, 100 degrees and 160 degrees) is formed between the inner side of the oil baffle plate (the side towards which the nozzle holes 540 face) and the inner wall of the casing 200, and when the nozzle holes 540 jet the cooling medium to the oil baffle plate, the cooling medium rebounds to the end of the stator winding 600 through the oil baffle plate, so that the stator winding 600 is cooled.
Referring to fig. 5, a partial cross-sectional structural view of a motor of an embodiment of the present invention is shown. The motor further includes a slinger 900, and the slinger 900 includes a slinger portion 910. When the slinger 900 is mounted on the end of the stator winding 600, the slinger 910 is spaced apart from the spray holes 540, the spray holes 540 at both ends of the stator core 500 face the oil baffling surface of the slinger 910, and when the cooling medium is sprayed from the spray holes 540, the oil baffling surface of the slinger 910 rebounds and/or flows the cooling medium sprayed from the spray holes 540 to the end surface of the stator winding 600, so that the cooling medium can be uniformly sprayed on the end surface of the stator winding 600.
The slinger 900 further includes a mounting portion 920 connected to the slinger portion 910, and mounting of the slinger 900 to the end portion of the stator winding 600 may be achieved by the mounting portion 920 receiving at least a portion of the end portion of the stator winding 600.
In an embodiment of the present invention, the oil deflector 900 is formed by folding the outer edge of the ring, the outer edge of the ring is used as the oil deflector 910, and the portion of the ring except the outer edge is the mounting portion 920, so that an obtuse angle (for example, 100-, the cooling structure is used for cooling the stator winding 600 and improving the cooling efficiency of the stator winding 600.
Referring to fig. 6, a block diagram of a stator winding of an embodiment of the present invention is shown. For the stator winding 600 installed in the inner groove of the stator core 500, one end of the stator winding 600 is a welding end, a welding spot 610 exists, the other end is not the welding end, and a leading-out wire 620 exists; the oil slinger 900 is mounted differently for different ends of the stator winding 600.
Referring to fig. 7, a structural view of a slinger of an embodiment of the present invention is shown. One end of the stator winding 600 with the welding spots 610 is provided, the installation portion 920 of the oil slinger 900 installed at the end portion is provided with welding spot isolation grooves 921 corresponding to the welding spots 610, the welding spot isolation grooves 921 are made of insulating materials, the number of the welding spot isolation grooves 921 is identical to that of the welding spots 610, the welding spot isolation grooves 921 are evenly distributed on the installation portion 920 along the circumferential direction of the oil slinger 900 to form a nut cap type structure, the welding spots 610 on the stator winding can serve as supports of the nut cap type structure, therefore, the welding spots 610 of the stator winding 600 can be accommodated through the welding spot isolation grooves 921, and the oil slinger 900 is installed at the end portion of the stator winding 600.
In the process of manufacturing the motor, a welding structure is inevitably used at one end of the hairpin winding, and after welding is completed, an insulating material is coated at a welding spot 610 in a common processing mode, and is melted by local heating and uniformly spread on the welding spot 610 to achieve the purpose of insulation, and the processing mode has the disadvantages of complex process, high cost, high-temperature heating treatment requirement, easy wire damage, and easy falling of an insulating coating layer on the surface of the welding spot 610 after working conditions such as vibration and the like, thereby causing the risk of local insulation failure.
In the embodiment of the present invention, the welding point 610 of the stator winding 600 is isolated and protected by the welding point isolation groove 921 on the mounting portion 920 of the oil slinger 900, so that an insulation coating layer of the welding point 610 is omitted, a motor manufacturing process is simplified, a manufacturing cost is reduced, and a production efficiency is improved. In addition, compare in the mode that coats insulating material on solder joint 610, adopt solder joint isolation slot 921 to protect solder joint 610 on stator winding 600, can avoid causing the damage to stator winding 600 when coating insulating material high temperature heat treatment, can avoid simultaneously that solder joint 610 surface insulating coating layer from taking place to drop easily after the operating mode such as vibrations, lead to the problem of local insulation inefficacy.
Moreover, the welding point isolation groove 921 is arranged on the mounting portion 920 of the oil slinger 900, and a component for separately arranging the welding point isolation groove 921 is not required to be additionally arranged on the motor, so that the structure of the motor is simplified, and the oil slinger 900 is fixedly mounted at the end portion of the stator winding 600 while the welding point isolation groove 921 on the mounting portion 920 of the oil slinger 900 carries out isolation protection on the welding point 610. As an example, for the oil slinger 900 in which the mounting portion 920 is provided with the welding point isolation groove 921, the oil slinger surface of the oil slinger 910 may bounce a portion of the cooling medium ejected from the ejection holes 540 to the end surface of the stator winding 600, and there is a portion of the cooling medium flowing to the end surface of the stator winding 600 along the welding point isolation groove 921 of the oil slinger 900 due to gravity, so as to better cool the stator winding 600. In addition, a notch 930 is formed at a position of the oil blocking portion 910 close to the bottom of the casing 200, and the notch 930 is formed by cutting off a part of the outer edge of the ring, so that the cooling medium cooled by the stator core 500 and the stator winding 600 can smoothly fall into the bottom of the casing 200 through the notch 930 and flow out of the motor from the oil outlet passage 220 at the bottom of the casing 200.
Referring to fig. 8, there is shown a structural view of another slinger according to an embodiment of the present invention. Since the end portion of the stator winding 600 where the lead wires 620 are present does not have the solder 610, the mounting portion 920 of the slinger 900 mounted on the end portion does not need to be provided with the solder separation groove 921, but is provided with mounting holes 922 corresponding to the lead wires 620, the number of the mounting holes 922 is identical to the number of the lead wires 620, and the slinger 900 can be mounted on the end portion of the stator winding 600 by passing the lead wires 620 through the mounting holes 922 to fix the slinger 900. As an example, in the oil slinger 900 in which the mounting portion 920 is provided with the mounting hole 922, the oil slinging surface of the oil slinger 910 may bounce the cooling medium ejected from the nozzle hole 540 to the end surface of the stator winding 600 to better cool the stator winding 600. In addition, a notch 930 is formed at a position of the oil blocking portion 910 close to the bottom of the casing 200, and the notch 930 is formed by cutting off a part of the outer edge of the ring, so that the cooling medium cooled by the stator core 500 and the stator winding 600 can smoothly fall into the bottom of the casing 200 through the notch 930 and flow out of the motor from the oil outlet passage 220 at the bottom of the casing 200.
The embodiment of the invention also provides a vehicle which comprises the motor. The specific arrangement of the motor can be seen from the above detailed description, and will not be described in a repeated manner.
The motor and the vehicle provided by the invention are described in detail, and the principle and the embodiment of the invention are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (11)
1. An electric machine, characterized in that the electric machine comprises:
the oil inlet is formed in the shell;
the stator core is internally provided with an axial oil duct and a spray hole along the axial direction of the stator core, and the outer wall of the stator core and the inner wall of the shell form a circumferential oil duct and a circumferential oil cavity which are distributed along the circumferential direction of the stator core at intervals;
the oil inlet is communicated with the circumferential oil duct, the circumferential oil duct is communicated with the circumferential oil cavity through the axial oil duct, one end of the spray hole is communicated with the circumferential oil cavity, and the other end of the spray hole is communicated with the inner cavity of the shell.
2. The electric machine of claim 1, wherein the circumferential oil passage and the circumferential oil cavity are formed by the stator core outer wall and the housing inner wall,
the stator core outer wall is provided with a first circumferential groove and a second circumferential groove which are distributed at intervals, the first circumferential groove is sealed through the shell inner wall to form the circumferential oil channel, and the second circumferential groove is sealed through the shell inner wall to form the circumferential oil cavity.
3. The motor according to claim 1, wherein the nozzle hole is provided at both ends of the stator core, the circumferential oil chamber includes a first circumferential oil chamber and a second circumferential oil chamber located on both sides of the circumferential oil passage, and the first circumferential oil chamber and the second circumferential oil chamber communicate with the nozzle hole on a side away from the circumferential oil passage.
4. The electric machine according to claim 3, wherein the plurality of axial oil passages are provided at intervals in a circumferential direction of the stator core.
5. The electric motor of claim 1, wherein said housing bottom is provided with an oil outlet and an oil outlet, said oil outlet being in communication with said oil outlet.
6. The electric machine of any of claims 1-5, further comprising:
a stator winding mounted in an inner groove of the stator core;
the oil scraper ring comprises an oil baffle part and an installation part connected with the oil baffle part, the oil baffle part and the spray holes are arranged at intervals, the spray holes face the oil baffle part so that a cooling medium sprayed out from the spray holes can rebound and/or flow to the end part of the stator winding, at least one part of the end part of the stator winding is contained by the installation part so as to install the oil scraper ring at the end part of the stator winding, and an obtuse angle is formed between the inner side of the oil scraper ring and the shell.
7. The electric machine of claim 6, wherein the mounting portion is provided with a welding point isolation groove corresponding to the welding point on the end of the stator winding where the welding point is provided, the welding point isolation groove receiving the welding point to mount the slinger on the end of the stator winding.
8. The motor according to claim 6, wherein the mounting portion is provided with a mounting hole corresponding to the lead wire on an end portion of the stator winding where the lead wire is provided, the lead wire passing through the stator winding passing through the mounting hole to mount the slinger on the end portion of the stator winding.
9. The motor according to claim 6, wherein the slinger is formed by folding over an outer edge of a circular ring, the outer edge of the circular ring being the oil slinging portion, a portion of the circular ring other than the outer edge being the mounting portion;
the oil blocking part comprises a notch formed by cutting off a part of the outer edge of the circular ring, and the notch is close to the bottom of the shell so that the cooling medium falls into the bottom of the shell through the notch.
10. The electric machine according to any of claims 1-5, characterized in that the electric machine comprises:
a stator winding mounted in an inner groove of the stator core;
the oil baffle plate is fixed at the end part of the stator winding, an obtuse angle is formed between the inner side of the oil baffle plate and the shell, the oil baffle plate and the spray holes are arranged at intervals, and the spray holes face the oil baffle plate so that cooling media sprayed by the spray holes can rebound to the end part of the stator winding through the oil baffle plate.
11. A vehicle, characterized in that the vehicle comprises an electric machine according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210198911.4A CN114567114A (en) | 2022-03-01 | 2022-03-01 | Motor and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210198911.4A CN114567114A (en) | 2022-03-01 | 2022-03-01 | Motor and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114567114A true CN114567114A (en) | 2022-05-31 |
Family
ID=81715351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210198911.4A Pending CN114567114A (en) | 2022-03-01 | 2022-03-01 | Motor and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114567114A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080024020A1 (en) * | 2006-07-31 | 2008-01-31 | Iund Trevor N | Electric machine having a liquid-cooled rotor |
| JP2020065377A (en) * | 2018-10-17 | 2020-04-23 | 本田技研工業株式会社 | Rotary electric machine and vehicle having rotary electric machine |
| CN113241880A (en) * | 2021-05-27 | 2021-08-10 | 智新科技股份有限公司 | Oil-cooled motor with built-in oil way structure |
| CN113364167A (en) * | 2021-07-08 | 2021-09-07 | 珠海格力电器股份有限公司 | Stator module, motor and air conditioner |
| CN113708524A (en) * | 2021-07-29 | 2021-11-26 | 博格华纳汽车零部件（武汉）有限公司 | Motor stator cooling system |
| CN113890272A (en) * | 2021-09-22 | 2022-01-04 | 合肥巨一动力系统有限公司 | Oil-cooled stator structure, motor and vehicle |
-
2022
- 2022-03-01 CN CN202210198911.4A patent/CN114567114A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080024020A1 (en) * | 2006-07-31 | 2008-01-31 | Iund Trevor N | Electric machine having a liquid-cooled rotor |
| JP2020065377A (en) * | 2018-10-17 | 2020-04-23 | 本田技研工業株式会社 | Rotary electric machine and vehicle having rotary electric machine |
| CN113241880A (en) * | 2021-05-27 | 2021-08-10 | 智新科技股份有限公司 | Oil-cooled motor with built-in oil way structure |
| CN113364167A (en) * | 2021-07-08 | 2021-09-07 | 珠海格力电器股份有限公司 | Stator module, motor and air conditioner |
| CN113708524A (en) * | 2021-07-29 | 2021-11-26 | 博格华纳汽车零部件（武汉）有限公司 | Motor stator cooling system |
| CN113890272A (en) * | 2021-09-22 | 2022-01-04 | 合肥巨一动力系统有限公司 | Oil-cooled stator structure, motor and vehicle |
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