WO2022134746A1 - 油冷电机冷却系统及车辆 - Google Patents
油冷电机冷却系统及车辆 Download PDFInfo
- Publication number
- WO2022134746A1 WO2022134746A1 PCT/CN2021/123354 CN2021123354W WO2022134746A1 WO 2022134746 A1 WO2022134746 A1 WO 2022134746A1 CN 2021123354 W CN2021123354 W CN 2021123354W WO 2022134746 A1 WO2022134746 A1 WO 2022134746A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oil
- oil collecting
- holes
- pan
- pipe
- Prior art date
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 208
- 238000004804 winding Methods 0.000 claims abstract description 101
- 239000007921 spray Substances 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims description 101
- 239000007924 injection Substances 0.000 claims description 101
- 239000000446 fuel Substances 0.000 claims description 77
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 25
- 230000005540 biological transmission Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
-
- 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
- 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
- H02K7/08—Structural association with bearings
- H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
-
- 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
Definitions
- the present application relates to the technical field of vehicles, and in particular, to an oil-cooled motor cooling system and a vehicle.
- embodiments of the present application provide an oil-cooled motor cooling system and a vehicle, which can improve the cooling effect of the motor.
- the specific scheme of the embodiment of the present application is as follows:
- an embodiment of the present application provides an oil-cooled motor cooling system, wherein the system includes an oil collection assembly, an oil injection pipe, an oil guide pipe, and a motor;
- the motor includes a rotor shaft, first and second bearings supporting the rotor shaft, a stator winding, a stator core and a rotor core;
- the oil guide pipe is aligned with the rotor shaft in the axial direction of the rotor shaft, and is used for injecting cooling oil into the inside of the rotor shaft;
- the two ends of the shaft body of the rotor shaft are respectively provided with a first oil slinging hole and a second oil slinging hole, the first oil slinging hole corresponds to the first bearing, and the second oil slinging hole corresponds to the motor. the second bearing;
- the fuel injection pipe is located above the center of the oil collecting assembly, and is provided with a plurality of fuel injection holes whose openings face the oil collecting assembly, the fuel injection pipe is used for receiving the cooling oil provided by the oil pump and sending the cooling oil Oil collecting component injection;
- the oil collecting assembly includes a first oil collecting pan and a second oil collecting pan; the first oil collecting pan and the second oil collecting pan are respectively arranged above both ends of the stator winding, and the first oil collecting pan
- the disc and the second oil collecting disc are arc shapes adapted to the shape of the stator winding, and each is provided with a plurality of through holes for allowing the cooling oil sprayed from the fuel injection pipe to flow to the on the stator winding;
- the oil collection assembly, the fuel injection pipe and the oil guide pipe are all adapted to be connected to a transmission case.
- both the first oil throwing hole and the second oil throwing hole are inclined holes whose outer end is closer to the end of the rotor shaft than the inner end.
- the fuel injection pipe includes a straight pipe and a bent pipe
- the first nozzle of the straight pipe is closed, the second nozzle is open, the straight pipe is provided with a plurality of the fuel injection holes, and the straight pipe is arranged parallel to the axis of the motor;
- a part of the bent pipe is parallel to the straight pipe, and the other part is perpendicular to the straight pipe;
- the first nozzle of the pipe is closed, and the second nozzle is connected with the pipe body of the straight pipe.
- the width of the first oil collecting pan and the second oil collecting pan is the same as the width of the portion of the stator winding at the corresponding end that extends beyond the stator iron core.
- the first oil collecting pan includes a first circular-arc disc body, two first circular-arc-shaped side edges and a plurality of first separating ribs, and the two first circular-arc-shaped side edges are located in the The two sides of the first circular arc body are raised upward, and the plurality of first separation ribs are evenly connected between the two first circular arc-shaped side edges, so that the first circular arc plate is A plurality of first oil collecting grids are formed on the body, and each of the first oil collecting grids is provided with a plurality of the through holes;
- the second oil collecting pan includes a second arc-shaped body, two second arc-shaped sides and a plurality of second partition ribs, and the two second arc-shaped sides are located on the second arc. Both sides of the disc body are raised upward, and the plurality of second separating ribs are evenly connected between the two second arc-shaped side edges, so as to form a plurality of Second oil collection grids, each of the second oil collection grids is provided with a plurality of the through holes.
- the arcs of the first oil collecting pan and the second oil collecting pan are both 120 degrees.
- Each of the first oil collecting grid and each of the second oil collecting grids are provided with three through holes, the centers of the three through holes form an isosceles triangle, and the top of the isosceles triangle The corners are smaller than the bottom corners, and the three through holes are located on the lower side of the oil collecting grid where they are located.
- the entirety of the first oil collecting pan and the second oil collecting pan is symmetrical about the center line of the respective circular arcs.
- two ends of the first oil collecting pan adjacent to the arc-shaped side of the second oil collecting pan are respectively provided with upright first lugs, and connecting pipes are integrated on the first lugs;
- the two ends of the second oil collecting pan adjacent to the arc-shaped side of the first oil collecting pan are respectively provided with upright second lugs, and the second lugs are opposite to the first lugs, so A connecting column is integrated on the second lug, and the connecting column is configured to be inserted into the connecting pipe.
- two ends of the arc-shaped side of the first oil collecting pan away from the second oil collecting pan are respectively integrated with inserting posts, and the inserting posts are suitable for connecting with the gearbox casing. the hole interference fit;
- the middle of the second oil collecting pan away from the arc-shaped side of the first oil collecting pan protrudes upward to form a positioning portion, and the end surface of the positioning portion is wavy and is suitable for connecting with the gearbox casing. inner wall contact.
- the embodiments of the present application provide another oil-cooled motor cooling system, wherein the system includes a motor, an oil collecting assembly, and an oil injection pipe;
- the fuel injection pipe is located above the oil collecting assembly, and is provided with a plurality of fuel injection holes whose openings face the oil collecting assembly, and the fuel injection pipe is used for the oil collecting through the plurality of fuel injection holes.
- the oil collecting assembly includes a first oil collecting pan and a second oil collecting pan, the first oil collecting pan and the second oil collecting pan are respectively located above the first end and the second end of the stator winding of the motor , each of the first oil collecting pan and the second oil collecting pan is an arc shape adapted to the shape of the stator winding, and a plurality of first oil collecting pans are provided on the first oil collecting pan a through hole, a plurality of second through holes are opened on the second oil collecting pan, and the oil collecting assembly is used to pass through the first through hole and the second through hole, so that the fuel injection pipe can pass through the first through hole and the second through hole The sprayed cooling oil flows onto the stator windings.
- the fuel injection pipe includes a straight pipe and a bent pipe
- the first end of the straight pipe is closed, the second end is open, the straight pipe is provided with a plurality of the fuel injection holes, and the straight pipe is arranged in parallel with the axis of the motor;
- the bent tube includes a first tube body and a second tube body connected to each other, the first tube body is aligned with the straight tube, and the end of the second tube body away from the first tube body is connected to the straight tube.
- the pipe bodies of the straight pipes are connected, the first pipe body is provided with a plurality of the fuel injection holes, and the end of the first pipe body away from the second pipe body is closed.
- the fuel injection pipe is made of stainless steel.
- the width of the first oil collecting pan is adapted to the width of the part where the first end of the stator winding extends beyond the stator iron core, and the second oil collecting pan is the same as the second oil collecting pan of the stator winding.
- the width of the portion of the end beyond the stator core is adapted.
- the first oil collecting pan includes a first arc-shaped disk body, two first arc-shaped sides and a plurality of first separating ribs, and the two first arc-shaped sides are located at the The two sides of the first arc-shaped disk body protrude in the direction away from the stator winding, the plurality of first separation ribs are evenly connected between the two first arc-shaped side edges, Thereby, a plurality of first oil collecting grids are formed on the first arc-shaped disc, and the first through holes are provided on each of the first oil collecting grids;
- the second oil collecting pan includes a second arc-shaped body, two second arc-shaped sides and a plurality of second separating ribs, and the two second arc-shaped sides are located in the second circle. Both sides of the arc-shaped disk body are protruded in a direction away from the stator winding, and the plurality of second separation ribs are evenly connected between the two second arc-shaped side edges, so that the A plurality of second oil collecting grids are formed on the second arc-shaped disk, and each of the second oil collecting grids is provided with the second through holes.
- the arcs of the first oil collecting pan and the second oil collecting pan are both 120 degrees.
- each of the first oil collecting compartments is provided with three first through holes, the centers of the three first through holes form an isosceles triangle, and two of the first through holes are close to each other.
- Each of the second oil collecting compartments is provided with three second through holes, the centers of the three second through holes form an isosceles triangle, and two of the second through holes are close to the oil collecting compartment where they are located. the lower edge of the .
- both the first oil collecting pan and the second oil collecting pan are symmetrical about their respective arc centerlines.
- two ends of the first oil collecting pan adjacent to the arc-shaped side of the second oil collecting pan are respectively provided with upright first lugs, and the first lugs are provided with connecting pipes;
- the two ends of the second oil collecting pan adjacent to the arc-shaped side of the first oil collecting pan are respectively provided with upright second lugs, and the second lugs are opposite to the first lugs, so The second lug is provided with a connecting column, and the connecting column is inserted into the connecting pipe.
- the oil-cooled motor cooling system further includes a gearbox housing
- Two ends of the first oil collecting pan away from the arc-shaped side of the second oil collecting pan are respectively provided with inserting posts, and the inserting posts are suitable for interference fit with the holes on the gearbox housing. ;
- a positioning portion is formed in the middle of the arc-shaped side of the second oil collecting pan away from the first oil collecting pan, and the positioning portion protrudes in a wave-like shape toward the direction away from the stator winding, and the positioning portion is suitable for connecting with the stator winding.
- the inner walls of the gearbox housing are in contact.
- both the first oil collecting pan and the second oil collecting pan are injection molded parts made of high temperature resistant materials.
- the system further includes an oil guide pipe;
- the oil guide pipe is communicated with the inside of the rotor shaft of the motor, and is used for injecting the cooling oil provided by the oil pump into the inside of the rotor shaft;
- the two ends of the shaft body of the rotor shaft of the motor are respectively provided with a first oil throwing hole and a second oil throwing hole, and the first oil throwing hole is used for throwing the cooling oil inside the rotor shaft to support the the first bearing of the rotor shaft, the second oil throwing hole is used for throwing the cooling oil inside the rotor shaft to the second bearing supporting the rotor shaft, the first bearing and the second bearing respectively near both ends of the rotor shaft.
- the axis of the first oil throwing hole is aligned with the first bearing, and the axis of the second oil throwing hole is aligned with the second bearing.
- each of the first oil slinging holes and the second oil slinging holes is multiple, and the plurality of first oil slinging holes and the plurality of second oil slinging holes surround the rotor shaft respectively. Axle distribution.
- an embodiment of the present application further provides a vehicle, where the vehicle includes the above-mentioned oil-cooled motor cooling system.
- the oil-cooled motor cooling system of the embodiment of the present application includes an oil collecting assembly, an oil injection pipe, and a motor.
- the fuel injection pipe is provided with a plurality of fuel injection holes, so that the cooling oil in the fuel injection pipe can be sprayed onto the oil collecting assembly.
- the oil collecting assembly includes a first oil collecting pan and a second oil collecting pan which are arc-shaped and have a plurality of through holes. The cooling oil in the oil collecting pan drips onto the stator winding and the stator iron core through the through holes, thereby The cooling of the stator winding and the stator core is achieved.
- the system utilizes oil collecting components and fuel injection pipes with relatively simple structures to cool the stator windings and stator iron cores that generate more heat. The cooling range is wide and the cooling effect is good, avoiding the long-term accumulation of heat and causing the motor efficiency is reduced.
- the rotor shaft of the motor may also be provided with a plurality of first oil throwing holes and a plurality of second oil throwing holes, and the oil guide pipe is used to inject the cooling oil into the rotor shaft, so that when the rotor rotates
- the oil guide pipe is used to inject the cooling oil into the rotor shaft, so that when the rotor rotates
- the cooling oil passes through the first oil throwing hole and the second oil throwing hole on the rotor shaft, it is splashed to the inner side of the bearings on both sides of the rotor shaft, and then bounces back to the inner side of the electric stator winding and the electric rotor iron core. Cooling of the inner side of the stator windings, the rotor core and the bearings further improves the cooling effect.
- FIG. 1 is a main cross-sectional view of an oil-cooled motor cooling system provided by an embodiment of the application;
- FIG. 2 is a schematic structural diagram of a first oil collecting pan provided by an embodiment of the present application.
- FIG. 3 is a schematic structural diagram of a second oil collecting pan provided by an embodiment of the present application.
- FIG. 4 is a schematic structural diagram of a fuel injection pipe provided by an embodiment of the application.
- FIG. 5 is a schematic diagram of the working principle of the oil-cooled motor cooling system provided by the embodiment of the present application.
- FIG. 6 is a schematic cross-sectional view of a rotor shaft provided with a plurality of oil throwing holes distributed around the shaft body at both ends of the shaft body according to an embodiment of the present application.
- the embodiment of the present application provides an oil-cooled motor cooling system.
- the system includes an oil collecting assembly 1 , an oil injection pipe 2 and a motor 4 .
- the motor 4 includes a rotor shaft 41 , first and second bearings 42 and 43 supporting the rotor shaft 41 , a stator winding 44 , a stator iron core 45 and a rotor iron core 46 .
- the fuel injection pipe 2 is located above the oil collecting assembly 1 , for example, the fuel injection pipe 2 is located directly above the oil collecting assembly 1 , that is, the center of the fuel injection pipe 2 is located directly above the center of the oil collecting assembly 1 in the vertical direction.
- the fuel injection pipe 2 is provided with a plurality of fuel injection holes 23 opening toward the oil collecting assembly 1 .
- the fuel injection pipe 2 is used to spray cooling oil to the oil collecting assembly 1 through a plurality of fuel injection holes 23 .
- the oil collecting assembly 1 includes a first oil collecting pan 11 and a second oil collecting pan 12 .
- the first oil collecting pan 11 and the second oil collecting pan 12 are respectively located above both ends of the stator winding 44, that is, the first oil collecting pan 11 and the second oil collecting pan 12 are respectively located above the first end and the second end of the stator winding 44,
- the first oil collecting pan 11 and the second oil collecting pan 12 are arc shapes adapted to the shape of the stator winding 44, and each has a plurality of through holes, that is, the first oil collecting pan 11 is provided with a plurality of through holes.
- the first through holes 118 and the second oil collecting pan 12 are provided with a plurality of second through holes 128 , so that the oil collecting assembly 1 can pass the plurality of first through holes 118 and the plurality of second through holes 128 to the fuel injection pipe 2 .
- the sprayed cooling oil flows onto the stator windings 44 to cool the stator windings 44 .
- the oil collecting assembly 1 can buffer the high-pressure cooling oil sprayed by the fuel injection pipe 2, and prevent the cooling oil from being directly sprayed on the stator winding 44 and causing damage to the insulating layer of the copper wire.
- first oil collecting pan 11 and the second oil collecting pan 12 are arc shapes adapted to the shape of the stator winding 44 , so that the cooling oil can be guided, so that the stator winding 44 can be better cooled.
- the contour of the edge of the stator winding 44 close to the first oil collecting pan 11 is in the shape of a first arc
- the contour of the edge of the first oil collecting pan 11 close to the stator winding 44 is in the shape of a second arc
- the first arc is in the shape of a second arc. substantially concentric with the second arc.
- the cooling oil with a certain flow rate flows into the fuel injection pipe 2 , it is sprayed onto the disk bodies of the first oil collecting pan 11 and the second oil collecting pan 12 through the fuel injection holes 23 on the fuel injection pipe 2 .
- the cooling oil on the two oil collecting pans flows to the corresponding ends of the stator windings 44 below through the through holes on the pans respectively, so as to cool both ends of the stator windings 44 .
- the cooling oil accumulated in the two oil collecting pans reaches its maximum oil storage limit, the cooling oil will overflow from the oil collecting pans, thereby cooling the end faces of the stator windings 44 .
- the cooling oil flowing into the fuel injection pipe 2 can also be directly injected onto the stator core 45 through the fuel injection hole 23 , thereby cooling the stator core 45 .
- stator winding 44 refers to the two parts of the stator winding 44 that are not covered by the stator iron core 45 . end exposed. It should be understood that when the motor is working, the stator winding 44 generates a large amount of heat and has a high temperature, so the first oil collecting pan 11 and the second oil collecting pan 12 need to avoid contact with the stator winding 44 .
- Both the oil collecting assembly 1 and the fuel injection pipe 2 are adapted to be connected to the transmission case 5, and the oil collecting assembly 1 and the fuel injection pipe 2 can be fixed in a preset position through the transmission case 5, so as to realize their respective functions .
- the transmission case 5 has oil passages, so that the cooling oil provided by the oil pump M can be delivered to the oil guide pipe 3 and the fuel injection pipe 2 through the corresponding oil passages.
- the specific structure of the upper oil passage is not limited.
- the fuel injection pipe is located above the oil collecting assembly, and the two oil collecting discs are respectively located above both ends of the stator winding, so that the cooling oil in the fuel injection pipe can be sprayed to the two The cooling oil on the oil collecting pan, and then the cooling oil on the two oil collecting pans can flow to both ends of the stator winding through the through holes, so as to cool the stator winding with larger heat generation, and the cooling effect is better, which can improve the motor performance. work efficiency.
- the structures of the fuel injection pipe 2 , the first oil collecting pan 11 and the second oil collecting pan 12 are set as follows in the embodiment of the present application.
- the fuel injection pipe 2 may include a straight pipe 21 and a bent pipe 22 .
- the first end of the straight pipe 21 is closed, the second end is open, and a plurality of oil injection holes 23 are arranged on it.
- the open end is used to receive the cooling oil
- the closed end is used to block the flow of the cooling oil, thereby forcing the
- the cooling oil can only be sprayed toward the oil collecting assembly 1 through the oil injection hole 23, and the straight pipe 21 is arranged in parallel with the axis of the motor 4, wherein the open second end can be connected with the oil pump M, so as to receive the oil provided by the oil pump M. cooling oil.
- the bent tube 22 includes a first tube body 221 and a second tube body 222 that are connected to each other, wherein the first tube body 221 is parallel to the straight tube 21 , and the end of the second tube body 222 away from the first tube body 221 is parallel to the straight tube 21 .
- the second pipe body 222 can be perpendicular to the straight pipe 21, so that the cooling oil in the straight pipe 21 can be transported to the first pipe body 221 through the second pipe body 222, and the first pipe body 221 is provided with A plurality of oil injection holes 23, one end of the first pipe body 221 away from the second pipe body 222 is closed, and the closed end is used to block the flow of cooling oil, so that the cooling oil can only pass through the oil injection holes 23 toward the oil collecting assembly 1 spray.
- the first pipe bodies 221 of the straight pipe 21 and the bent pipe 22 span the first oil collecting pan 11 , the stator iron core 45 and the second oil collecting pan 12 respectively.
- the extension direction of the straight pipe 21 and the extension direction of the first pipe body 221 of the bent pipe 22 are substantially parallel to the axial direction of the stator core 45 , and the two ends of each extend to the first oil collecting pan 11 and the second Above the two oil collecting pans 12 , the cooling oil in the fuel injection pipe 2 can be sprayed onto the first oil collecting pan 11 , the stator iron core 45 and the second oil collecting pan 12 through the oil injection holes 23 .
- the straight pipe 21 and the first pipe body 221 of the bent pipe 22 are used to spray coolant to the two semicircular arc disc bodies of the first oil collecting pan 11 and the second oil collecting pan 12 respectively. That is, the straight pipe 21 sprays the coolant to a part of the first oil collecting pan 11 and a part of the second oil collecting pan 12 , and the first pipe body 221 of the bent pipe 22 sprays the other part of the first oil collecting pan 11 and the second oil collecting pan 12 . Another part of the oil collecting pan 12 is sprayed with cooling liquid, and the areas corresponding to the cooling liquid sprayed from the first pipe body 221 of the straight pipe 21 and the first pipe body 221 of the bent pipe 22 are approximately equal in area.
- the function of the second tube body 222 of the bent tube 22 is to connect the straight tube 21 and the bent tube 22 .
- the oil injection holes 23 can also be opened on the second pipe body 222 to cool the stator winding 44 .
- the centerline of the fuel injection pipe 2 may be collinear with the arc centerlines of the first oil collecting pan 11 and the second oil collecting pan 12 , that is, the distance between the straight pipe 21 and the bent pipe 22
- the first pipe body 221 is symmetrical about the arc centerlines of the two oil collecting pans.
- the distance between the straight tube 21 and the first tube body 221 of the bent tube 22 should be reasonably set, because the two are carried out by the second tube body 222 of the bent tube 22 . Therefore, the length of the second pipe body 222 of the bent pipe 22 should be reasonably set.
- the cooling oil injected in the middle of the fuel injection pipe 2 will be concentrated in the middle part of the stator iron core 45 , causing the stator iron core 45
- the cooling effect of other parts of the stator core 45 is not good; if the distance between the two is too long, the cooling oil sprayed in the middle of the fuel injection pipe 2 is concentrated on both sides of the stator core 45, resulting in poor cooling effect of the middle part of the stator core 45. it is good.
- the lengths of the straight pipe 21 and the first pipe body 221 of the bent pipe 22 are, for example, corresponding to the distance between the first oil collecting pan 11 and the second oil collecting pan 12 , for example, are approximately the same or exceed a part.
- the distance between the first oil collecting pan 11 and the second oil collecting pan 12 depends on the specific structure of the motor 4 . Therefore, the length of the first pipe body 221 of the straight pipe 21 and the bent pipe 22 should be set according to the specific structure of the motor 4 .
- the straight pipe 21 is provided with three fuel injection holes 23
- the first pipe body 221 of the bent pipe 22 is provided with three fuel injection holes 23
- the second pipe body 222 is provided with three fuel injection holes 23 .
- the fuel injection pipe 2 has a better effect of injecting fuel to the outside, and can meet the requirements of use.
- the distance between the three fuel injection holes 23 on the first pipe body 221 of the straight pipe 21 and the bent pipe 22 should be reasonably set according to the specific situation, so that the cooling from the fuel injection pipe 2 Oil is sprayed evenly onto both oil pans.
- the straight pipe 21 may continue to extend at the connection with the bent pipe 22, and the extension part is suitable for connecting with the transmission case
- the corresponding holes on the body 5 are interference-fitted. It should be understood that, the above-mentioned extension portion of the straight pipe 21 is only for fixing the fuel injection pipe on the transmission case 5, so it is not necessary to provide the fuel injection hole 23 thereon.
- the entire fuel injection pipe 2 may be made of stainless steel, so that sufficient strength can be ensured and rust is not easy.
- the width of the first oil collecting pan 11 is adapted to the width of the part where the first end of the stator winding 44 extends beyond the stator iron core 45, for example, the widths of the two can be The same, or the difference in width between the two is smaller, that is, the width of the first oil collecting pan 11 may be slightly larger or slightly smaller than the width of the portion where the first end of the stator winding 44 extends beyond the stator iron core 45, so that the first oil collecting pan 11 It can be covered just above the part of the stator winding 44 beyond the stator core 45 at this end, so that the cooling effect at both ends of the stator winding 44 will not be affected due to the short width, and the cooling oil will not be prevented from overflowing due to the long width.
- the downflow cools the end faces of the stator windings 44 .
- the first oil collecting pan 11 may include a first circular arc-shaped pan body 116 , two first circular arc-shaped side edges 117 and a plurality of first separating ribs 111 .
- the two first arc-shaped side edges 117 are respectively located on both sides of the first arc-shaped disk body 116 and protrude in a direction away from the stator winding 44 , and the plurality of first separating ribs 111 are evenly connected to the two first between the arc-shaped side edges 117 , a plurality of first oil collecting grids 112 are formed on the first arc-shaped disk body 116 , and each first oil collecting grid 112 is provided with a plurality of first through holes 118 .
- the first oil collecting pan 11 is equivalent to a shallow groove, and the shallow groove is divided into a plurality of small squares. Due to the existence of the plurality of first oil collecting grids 112, the cooling oil sprayed from the fuel injection pipe 2 onto the first oil collecting pan 11 can be temporarily accumulated to form an oil surface of a certain height, which is beneficial for the cooling oil to pass through the first oil collecting pan 11.
- the first through holes 118 on the oil pan 11 flow onto the stator windings 44 below; otherwise, if the first oil collecting grid 112 does not exist, the cooling oil sprayed onto the first oil collecting pan 11 can easily follow the pan As a result, only a small amount of cooling oil can flow through the first through hole 118 to the lower stator winding 44, and the cooling effect is not good.
- the above-mentioned plurality of first separating ribs 111 can not only play the role of separating the first circular arc-shaped disc body 116 into a plurality of first oil collecting grids 112, but also play the role of separating the two first circles 112 from each other. Reinforcing effect of arc-shaped sides 117 .
- the height of the protrusions of the plurality of first separating ribs 111 should be appropriate. If the height is too low, an oil surface of a certain height cannot be formed, which is not conducive to the passage of the cooling oil sprayed onto the first oil collecting pan 11 . The through holes on the pan body flow downward; if the height is too high, it will be unfavorable for the cooling oil in the first oil collecting pan 11 to overflow outward, resulting in poor cooling effect on the end face of the stator winding 44 below.
- the radian of the first oil collecting pan 11 may be 120 degrees, that is, the first oil collecting pan 11 covers one third of the circumference of the stator winding 44 at the corresponding end. . Based on the drainage effect of the first oil collecting pan 11 with such an arc, the cooling oil can sufficiently cool the stator winding 44 at the end.
- each first oil collecting grid 112 may be provided with three first through holes 118 , and the circle centers of the three first through holes 118 may form a Isosceles triangle, in which the two first through holes 118 are close to the lower edge of the oil collecting grid.
- the three first through holes 118 may also be located in the lower half of the oil collecting compartment.
- the distance between the upper first through hole 118 and the lower two first through holes 118 may be greater than the distance between the lower two first through holes 118 .
- the location of the three first through holes 118 is in line with the flow trend of the cooling liquid, so that more cooling oil can flow through the first through holes 118 . Therefore, through the above-mentioned structural design, a better oil drenching effect can be achieved, thereby achieving good cooling of the stator windings 44 .
- the first oil collecting pan 11 as a whole can be symmetrical about its arc centerline, that is, the first oil collecting pan 11 on both sides of the arc centerline
- the number of the first oil collecting grids 112 is the same, and the first through holes 118 on the two first oil collecting grids 112 corresponding to the positions are also symmetrical with respect to the center line of the arc.
- first oil collecting grids 112 may be formed on the first oil collecting pan 11 , that is, there are three first oil collecting grids 112 on both sides of the arc centerline of the first oil collecting pan 11 respectively.
- the oil collecting grid 112 facilitates the accumulation and flow of cooling oil on each semi-circular disc.
- the second oil collecting pan 12 can have a similar structural design as the first oil collecting pan 11 , so only the structure of the second oil collecting pan 12 will be briefly described below, and the technical effects brought by its various structural features Alternatively, for specific functions, reference may be made to the corresponding features of the first oil collecting pan 11 , which will not be repeated here.
- the width of the second oil collecting pan 12 is adapted to the width of the part where the second end of the stator winding 44 extends beyond the stator iron core 45, for example, the widths of the two can be The same, or the difference in width between the two is smaller, that is, the width of the second oil collecting pan 12 may be slightly larger or smaller than the width of the portion where the second end of the stator winding 44 extends beyond the stator iron core 45 .
- the second oil collecting pan 12 may include a second arc-shaped pan body 126 , two second arc-shaped side edges 127 and a plurality of second partition ribs 121 , and two second arc-shaped side edges 121 .
- the sides 127 are respectively located on both sides of the second arc-shaped disk body 126 and protrude in a direction away from the stator winding 44 , and a plurality of second separating ribs 121 are evenly connected between the two second arc-shaped side sides 127 . , so that a plurality of second oil collecting grids 122 are formed on the second arc-shaped disc body 126 .
- the arc of the second oil collecting pan 12 may be 120 degrees.
- each second oil collecting grid 122 may be provided with three second through holes 128 , and the circle centers of the three second through holes 128 may constitute An isosceles triangle, wherein the two second through holes 128 are close to the lower edge of the oil collecting grid.
- the entire second oil collecting pan 12 may be symmetrical about its arc centerline.
- second oil collecting grids 122 may be formed on the second arc-shaped pan body 126 , that is, there are three second oil collecting grids 122 on both sides of the arc centerline of the second oil collecting pan 12 respectively. Oil collection grid 122.
- the widths of the parts of the stator winding 44 beyond the stator core 45 may be different, so the widths of the first oil collecting pan 11 and the second oil collecting pan 12 are not necessarily the same.
- the widths of the first oil collecting pan 11 and the second oil collecting pan 12 are not necessarily the same.
- the number of oil collecting grids, the number and position of through holes in each oil collecting grid, and the radian of the oil collecting pan body, etc. can be the same, so that the cooling oil can pass through the different branches of the fuel injection pipe. Evenly flow onto the stator windings 44 to achieve uniform cooling of the stator windings 44 .
- the distance between the first oil collecting pan 11, the second oil collecting pan 12 and the stator winding 44 affects the cooling effect. If the distance is too large, the flow path of the cooling oil will be too long, and the cooling time difference of each part of the stator winding 44 will be relatively short. If the distance is too small, the impact force of the cooling oil sprayed from the oil injection holes 23 will be large, which is easy to damage the insulating layer on the surface of the copper wire of the stator winding 44 . After comparative tests, in the embodiment of the present application, the distances between the first oil collecting pan 11 and the second oil collecting pan 12 and the corresponding stator windings 44 can be both 1.6 mm, so that the above problems can be better avoided.
- the first oil collecting pan 11 and the second oil collecting pan 12 can be fixed together to form a whole, and then the first oil collecting pan 11 and the second oil collecting pan 12 can be fixed together.
- the entirety formed by the first oil collecting pan 11 and the second oil collecting pan 12 is fixed.
- two ends of the first oil collecting pan 11 adjacent to the arc-shaped side of the second oil collecting pan 12 may be respectively provided with upright first lugs 113 , and the first convex The lugs 113 are provided with connecting pipes 114; as shown in FIG.
- the two ends of the second oil collecting pan 12 adjacent to the arc-shaped side of the first oil collecting pan 11 may be respectively provided with upright second lugs 123, the second The lug 123 is opposite to the first lug 113 , and the second lug 123 has a connecting column 124 , and the connecting column 124 is inserted into the connecting pipe 114 .
- the connecting post 124 can be easily inserted into the connecting pipe 114. It should be understood here that after the connecting post 124 and the connecting pipe 114 are matched, the first oil collecting pan 11 and the second oil collecting pan 12 The distance between them should be the same as the set spacing.
- the first oil collecting pan 11 is far away from the second Both ends of the arc-shaped side of the oil collecting pan 12 may respectively have inserting posts 115, and the inserting posts 115 are suitable for interference fit with the holes on the gearbox housing 5; as shown in FIG. 4, the second oil collecting A positioning portion 125 may be formed in the middle of the arc-shaped side of the pan 12 away from the first oil collecting pan 11 .
- the positioning portion 125 is wavy and protrudes in the direction away from the stator winding 44 .
- the positioning portion 125 is suitable for connecting with the gearbox housing 5 . contact with the inner wall.
- the end surface of the positioning portion 125 is wavy, which facilitates the cooling oil of the second oil collecting pan 12 to overflow outward to cool the end surface of the stator winding 44 .
- the plug column 115 on the first oil collecting pan 11 is fixedly connected with the gearbox housing 5, and the positioning part 125 on the second oil collecting pan 12 is in contact with the inner wall of the gearbox housing 5, so that the collecting The oil assembly 1 is integrally fixed at a predetermined position.
- the oil-cooled motor cooling system provided by the above-mentioned embodiments of the present application is located inside the gearbox housing 5 as a whole, so that the first oil collecting pan 11 and the second oil collecting pan 12 can be fixed to the gearbox housing 5 . .
- the first oil collecting pan 11 and the second oil collecting pan 12 can be both injection molded parts, and can be integrally formed by an injection molding process, so that the weight of the pan body can be reduced. And since the stator windings 44 under the first oil collecting pan 11 and the second oil collecting pan 12 will generate a lot of heat during operation, the first oil collecting pan 11 and the second oil collecting pan 12 can be made of high temperature resistant materials. to make.
- the oil-cooled motor cooling system may further include an oil guide pipe 3, which is communicated with the interior of the rotor shaft 41 of the motor 4 for cooling oil. Injected into the rotor shaft 41 .
- the oil guide pipe 3 may be connected to the oil pump M, aligned with the rotor shaft 41 in the axial direction of the rotor shaft 41 , and inject the cooling oil provided by the oil pump M into the inside of the rotor shaft 41 .
- Both ends of the shaft body of the rotor shaft 41 are respectively provided with a first oil throwing hole 411 and a second oil throwing hole 412 , the first oil throwing hole 411 corresponds to the first bearing 42 supporting the rotor shaft 41 , and the second oil throwing hole 412 corresponds to
- the first bearing 42 and the second bearing 43 are respectively close to both ends of the rotor shaft 41, that is, the first bearing 42 is close to the first end of the rotor shaft 41, and the second bearing 43 is close to the second end of the rotor shaft 41, so that the first oil throwing hole 411 can throw the cooling oil in the rotor shaft 41 to the inside of the first bearing 42, and the second oil throwing hole 412 can cool the cooling oil in the rotor shaft 41 The oil is thrown to the inside of the second bearing 43 .
- the inner side of the first bearing 42 refers to the side of the first bearing 42 close to the rotor shaft 41 ; the inner side of the second bearing 43 refers to the side of the second bearing 43 close to the rotor shaft 41 .
- the first oil throwing hole 411 and the second oil throwing hole 412 may both be closer to the outer end than the inner end.
- the inclined holes at the end of the rotor shaft 41 that is, the axes of the first oil throwing hole 411 and the second oil throwing hole 412 are aligned with the first bearing 42 and the second bearing 43 respectively.
- a plurality of first oil rejection holes 411 and second oil rejection holes 412 distributed around the shaft body of the rotor shaft 41 may be provided at both ends of the rotor shaft 41 ,
- the axes of the first oil throwing hole 411 and the second oil throwing hole 412 are aligned with the center positions of the inner sides of the first bearing 42 and the second bearing 43 respectively.
- the number of the first oil throwing holes 411 and the second oil throwing holes 412 can be three. By opening such three oil throwing holes at both ends of the shaft body of the rotor shaft 41, a sufficient amount of cooling can be achieved. Oil is sprayed to the vicinity of the first bearing 42 and the second bearing 43 .
- the oil guide pipe 3 can be connected to the transmission case 5 , and the oil guide pipe 3 can be fixed at a preset position through the transmission case 5 .
- the transmission case 5 has oil passages, so that the cooling oil provided by the oil pump M can be delivered to the oil guide pipe 3 through the corresponding oil passages.
- the structure is not limited.
- the oil-cooled motor cooling system of the embodiment of the present application includes an oil collection assembly, an oil injection pipe, an oil guide pipe, and a motor.
- the rotor shaft of the motor is provided with a plurality of first oil throwing holes and a plurality of second oil throwing holes, and the oil guide pipe is used to inject cooling oil into the rotor shaft, so that when the rotor rotates, the cooling oil passes through the holes on the rotor shaft.
- the first oil throwing hole and the second oil throwing hole are thrown to the inner side of the bearings on both sides of the rotor shaft, and then bounced to the inner side of the stator winding of the motor and the rotor iron core, so as to realize the inner side of the stator winding and the rotor iron core. and bearing cooling.
- the fuel injection pipe is provided with a plurality of fuel injection holes, so that the cooling oil in the fuel injection pipe can be sprayed onto the oil collecting assembly.
- the oil collecting assembly includes a first oil collecting pan and a second oil collecting pan which are arc-shaped and have a plurality of through holes.
- the cooling oil in the oil collecting pan drips onto the stator winding and the stator iron core through the through holes, thereby The cooling of the stator winding and the stator core is achieved.
- the cooling system of the embodiment of the present application utilizes the oil collecting assembly, the oil injection pipe and the oil guide pipe with relatively simple structures, and realizes the cooling of the inner and outer sides of the stator winding, the stator iron core, the rotor iron core, and the rotor shaft through two cooling oil paths. Direct cooling on both sides and inside the bearing, wide cooling range and good cooling effect.
- the cooling oil in the gearbox oil tank reaches the preset oil inlet temperature of the motor 4 through the cooling or heating action of the oil cooler N, it is pumped into the hydraulic system of the gearbox by the oil pump M and passes through the gearbox casing.
- the oil passages on the body 5 are respectively transported to the fuel injection pipe 2 and the oil guide pipe 3, that is, the oil-cooled motor cooling system provided by the embodiment of the present application has two oil-cooling paths:
- the cooling oil with a certain flow rate is sprayed into the rotor shaft 41 through the oil guide pipe 3.
- the rotating rotor shaft 41 makes the internal cooling oil splash, and the thrown cooling oil passes through the first oil throwing hole. 411 and the second oil throwing hole 412 are thrown to the inside of the first bearing 42 and the second bearing 43, so as to cool the first bearing 42 and the second bearing 43, and the cooling oil will also be washed by the first bearing 42 and the second bearing 43.
- the bearings 43 bounce to the inner side of the stator winding 44 and both sides of the rotor core 46 , thereby cooling the inner side of the stator winding 44 and both sides of the rotor core 46 .
- the second oil cooling path the cooling oil flowing into the fuel injection pipe 2 has two flow sub-paths: a part of the cooling oil flows into the straight pipe 21, since the straight pipe 21 spans the first oil collecting pan 11 and the stator iron core 45 and above the second oil collecting pan 12, so when this part of the cooling oil is flowing, when the cooling oil flows through the beginning of the straight pipe 21, the cooling oil can be sprayed to the first through the corresponding oil injection holes 23 on the straight pipe 21
- One side of the oil collecting pan 11 is on the semi-circular arc body, and then this part of the cooling oil can be poured onto the stator winding 44 located under the semi-circular arc body on the side through the through holes on the disc body, so that this part of the stator winding 44 is affected.
- One end is cooled.
- the cooling oil flows through the middle portion of the straight pipe 21, the cooling oil is directly sprayed onto the stator core 45 through the corresponding oil injection holes 23 on the straight pipe 21, thereby cooling it.
- the cooling oil flows through the end portion of the straight pipe 21, the cooling oil is sprayed onto the semi-circular disc on one side of the second oil collecting pan 12 through the corresponding oil injection holes 23 on the straight pipe 21, and then this part of the cooling oil passes through the disc.
- the through holes on the body are showered onto the stator windings 44 located under the half disc body, thereby cooling this end of the stator windings 44 .
- Another part of the cooling oil flows into the bent tube 22. Since the first tube body 221 of the bent tube 22 also straddles the first oil collecting pan 11, the stator iron core 45 and the second oil collecting pan 12, this part of the cooling oil flows into the bent tube 22.
- the cooling oil is flowing, when the cooling oil flows through the beginning part of the first pipe body 221 of the bent pipe 22, the cooling oil is sprayed to the other side of the first oil collecting pan 11 through the corresponding oil injection holes 23 on the pipe body
- the semi-circular arc disk body, and then this part of the cooling oil can be poured through the through holes in the disk body to the stator winding 44 located under the semi-circular arc disk body on the side, so as to cool this end of the stator winding 44 .
- the cooling oil can be directly sprayed onto the stator core 45 through the corresponding oil injection holes 23 on the pipe body, thereby cooling it.
- the cooling oil can be sprayed onto the other side of the semi-circular arc disc of the second oil collecting pan 12 through the corresponding oil injection holes 23 on the tube body
- this part of the cooling oil can be showered onto the stator winding 44 located under the semi-circular disc body on the side through the through holes in the disc body, so as to cool this end of the stator winding 44 .
- the oil-cooled motor cooling system can directly cool the outer and inner sides of the stator winding, the rotor core and the bearing, and the cooling range is wide and the cooling effect is good.
- the oil-cooled motor cooling system utilizes the oil collecting assembly, the oil injection pipe and the oil guide pipe, and realizes the cooling of the inner side and the outer side of the stator winding, the stator iron core, the rotor, and the inner side of the bearings on both sides of the rotor shaft through two oil cooling paths.
- cooling a wide range of cooling.
- Both of the two oil cooling paths spray the cooling oil directly to the corresponding components of the motor, so the motor can be cooled in time, and the cooling effect is better, which avoids the long-term accumulation of heat, which reduces the efficiency of the motor and even affects the motor. life.
- the amount of cooling oil required to achieve the same cooling effect is less, and the inlet temperature of the required cooling oil does not need to be very low, thereby reducing the load of the oil cooler.
- the water jacket used in the existing water cooling method is relatively large and heavy, which increases the overall weight and cost of the gearbox.
- the oil collecting assembly, the fuel injection pipe, and the oil guide pipe of the oil-cooled motor cooling system provided by the embodiment of the present application are all simple in structure, small in volume, and relatively light in weight, so that the overall weight of the gearbox is not increased.
- the water jacket generally needs to be press-fitted with the stator core.
- the interference fit is difficult and easy to heat unevenly, resulting in inconsistent deformation of the stator core, affecting the magnetic field generated by the motor, which in turn affects the normal performance of the motor. play.
- the oil collecting assembly, the fuel injection pipe, and the oil guide pipe provided in the embodiment of the present application are fixed by the gearbox casing, which will not cause adverse effects on the motor.
- Embodiments of the present application further provide a vehicle, which includes the above-mentioned oil-cooled motor cooling system.
- a vehicle which includes the above-mentioned oil-cooled motor cooling system.
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Abstract
Description
Claims (15)
- 一种油冷电机冷却系统,其中,所述系统包括电机(4)、集油组件(1)和喷油管(2);所述喷油管(2)位于所述集油组件(1)的上方,且设置有开口朝向所述集油组件(1)的多个喷油孔(23),所述喷油管(2)用于通过所述多个喷油孔(23)向所述集油组件(1)喷射冷却油;所述集油组件(1)包括第一集油盘(11)和第二集油盘(12),所述第一集油盘(11)和所述第二集油盘(12)分别位于所述电机(4)的定子绕组(44)第一端和第二端的上方,所述第一集油盘(11)和所述第二集油盘(12)中的每个均为与所述定子绕组(44)的形状适配的圆弧状,且所述第一集油盘(11)上开设有多个第一通孔(118),所述第二集油盘(12)上开设有多个第二通孔(128),所述集油组件(1)用于通过所述第一通孔(118)和所述第二通孔(128),使从所述喷油管(2)喷射出的冷却油流到所述定子绕组(44)上。
- 根据权利要求1所述的油冷电机冷却系统,其中,所述喷油管(2)包括直管(21)和弯折管(22);所述直管(21)的第一端为封闭,第二端为敞口,所述直管(21)上设有多个所述喷油孔(23),所述直管(21)与所述电机(4)的轴线平行设置;所述弯折管(22)包括彼此相连的第一管体(221)和第二管体(222),所述第一管体(221)与所述直管(21)平行,所述第二管体(222)远离所述第一管体(221)的一端与所述直管(21)的管体连接,所述第一管体(221)上设有多个所述喷油孔(23),所述第一管体(221)远离所述第二管体(222)的一端为封闭。
- 根据权利要求1所述的油冷电机冷却系统,其中,所述喷油管(2)为不锈钢材质。
- 根据权利要求1所述的油冷电机冷却系统,其中,所述第一集油盘(11)的宽度与所述定子绕组(44)的第一端超出所述定子铁芯(45)的部分的宽度 相适应,所述第二集油盘(12)的宽度与所述定子绕组(44)的第二端超出所述定子铁芯(45)的部分的宽度相适应。
- 根据权利要求1所述的油冷电机冷却系统,其中,所述第一集油盘(11)包括第一圆弧状盘身(116)、两个第一圆弧状侧边(117)和多个第一分隔筋(111),所述两个第一圆弧状侧边(117)分别位于所述第一圆弧状盘身(116)的两侧且向远离所述定子绕组(44)的方向凸起,所述多个第一分隔筋(111)间隔均匀地连接在所述两个第一圆弧状侧边(117)之间,从而在所述第一圆弧状盘身(116)上形成多个第一集油格(112),每个所述第一集油格(112)上设有多个所述第一通孔(118);所述第二集油盘(12)包括第二圆弧状盘身(126)、两个第二圆弧状侧边(127)和多个第二分隔筋(121),所述两个第二圆弧状侧边(127)分别位于所述第二圆弧状盘身的两侧且向远离所述定子绕组(44)的方向凸起,所述多个第二分隔筋(121)间隔均匀地连接在所述两个第二圆弧状侧边(127)之间,从而在所述第二圆弧状盘身(126)上形成多个第二集油格(122),每个所述第二集油格(122)上设有多个所述第二通孔(128)。
- 根据权利要求1所述的油冷电机冷却系统,其中,所述第一集油盘(11)和所述第二集油盘(12)的弧度均为120度。
- 根据权利要求5所述的油冷电机冷却系统,其特征在于,每个所述第一集油格(112)内设有三个所述第一通孔(118),所述三个第一通孔(118)的圆心构成一个等腰三角形,其中两个所述第一通孔(118)靠近所在集油格的下侧边缘;每个所述第二集油格(122)内设有三个所述第二通孔(128),所述三个第二通孔(128)的圆心构成一个等腰三角形,其中两个所述第二通孔(128)靠近所在集油格的下侧边缘。
- 根据权利要求5所述的油冷电机冷却系统,其中,所述第一集油盘(11)和所述第二集油盘(12)均关于各自的圆弧中心线对称。
- 根据权利要求5所述的油冷电机冷却系统,其中,所述第一集油盘(11)邻近所述第二集油盘(12)的圆弧状侧边的两端分别设有竖立的第一凸耳(113),所述第一凸耳(113)具有连接管(114);所述第二集油盘(12)邻近所述第一集油盘(11)的圆弧状侧边的两端分别设有竖立的第二凸耳(123),所述第二凸耳(123)与所述第一凸耳(113)相对,所述第二凸耳(123)具有连接柱(124),所述连接柱(124)插接在所述连接管(114)内。
- 根据权利要求9所述的油冷电机冷却系统,其中,所述第一集油盘(11)远离所述第二集油盘(12)的圆弧状侧边的两端分别具有插接柱(115),所述插接柱(115)适于与变速箱壳体(5)上的孔过盈配合;所述第二集油盘(12)远离所述第一集油盘(11)的圆弧状侧边的中间形成定位部(125),所述定位部(125)向远离所述定子绕组(44)的方向呈波浪状凸起,所述定位部(125)适于与所述变速箱壳体(5)的内壁接触。
- 根据权利要求1所述的油冷电机冷却系统,其中,所述第一集油盘(11)和所述第二集油盘(12)均为耐高温材料制成的注塑件。
- 根据权利要求1所述的油冷电机冷却系统,其中,所述系统还包括导油管(3);所述导油管(3)与所述电机(4)的转子轴(41)的内部连通,用于将冷却油注入所述转子轴(41)的内部;所述电机的转子轴(41)的轴体两端分别设有第一甩油孔(411)和第二甩油孔(412),所述第一甩油孔(411)用于将所述转子轴(41)的内部的冷却油甩至支撑所述转子轴(41)的第一轴承(42),所述第二甩油孔(412)用于将所述转子轴(41)的内部的冷却油甩至支撑所述转子轴(41)的第二轴承(43),所述第一轴承(42)和所述第二轴承(43)分别靠近所述转子轴(41)的两端。
- 根据权利要求12所述的油冷电机冷却系统,其中,所述第一甩油孔(411) 的轴线对准所述第一轴承(42),所述第二甩油孔(412)的轴线对准所述第二轴承(43)。
- 根据权利要求12所述的油冷电机冷却系统,其中,所述第一甩油孔(411)和所述第二甩油孔(412)均为多个,多个所述第一甩油孔(411)和多个所述第二甩油孔(412)分别环绕所述转子轴(41)的轴体分布。
- 一种车辆,所述车辆包括权利要求1-14任一项所述的油冷电机冷却系统。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP21908747.5A EP4270733A4 (en) | 2020-12-25 | 2021-10-12 | OIL-COOLED ENGINE AND VEHICLE COOLING SYSTEM |
US18/257,434 US20240258881A1 (en) | 2020-12-25 | 2021-10-12 | Oil-cooled motor cooling system, and vehicle |
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CN202011562372.5A CN112701856B (zh) | 2020-12-25 | 2020-12-25 | 油冷电机冷却系统 |
CN202011562372.5 | 2020-12-25 |
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WO2022134746A1 true WO2022134746A1 (zh) | 2022-06-30 |
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PCT/CN2021/123354 WO2022134746A1 (zh) | 2020-12-25 | 2021-10-12 | 油冷电机冷却系统及车辆 |
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US (1) | US20240258881A1 (zh) |
EP (1) | EP4270733A4 (zh) |
CN (1) | CN112701856B (zh) |
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CN112701856B (zh) * | 2020-12-25 | 2022-04-29 | 奇瑞汽车股份有限公司 | 油冷电机冷却系统 |
CN113507187B (zh) * | 2021-07-09 | 2023-03-07 | 南京航空航天大学 | 一种航空发电机油冷系统 |
CN114421712B (zh) * | 2021-12-22 | 2023-08-01 | 浙江零跑科技股份有限公司 | 一种油冷电机定子端部绕组喷油冷却机构 |
CN114189095B (zh) * | 2021-12-31 | 2023-06-30 | 广州小鹏汽车科技有限公司 | 电机及汽车 |
CN114598051B (zh) * | 2022-03-02 | 2024-02-27 | 蔚来动力科技(合肥)有限公司 | 用于车辆的电机及车辆 |
CN115395733A (zh) * | 2022-09-21 | 2022-11-25 | 重庆长安新能源汽车科技有限公司 | 一种驱动电机及新能源汽车 |
CN116394742A (zh) * | 2022-12-16 | 2023-07-07 | 精进电动科技股份有限公司 | 一种电驱动总成的冷却润滑装置和电驱动总成 |
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EP4270733A1 (en) | 2023-11-01 |
US20240258881A1 (en) | 2024-08-01 |
CN112701856A (zh) | 2021-04-23 |
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