CN211958886U - Motor for vehicle and vehicle with motor - Google Patents

Abstract

The utility model discloses a vehicle that is used for motor of vehicle and has it, the motor includes: the cooling water channel is formed in the stator; the rotor is disposed within the stator, the rotor comprising: a plurality of rotor segments, between two adjacent rotor segments, cooling fins are provided to generate a cooling air flow when the rotor rotates; the stator and rotor are both disposed within a housing, which is filled with cooling oil that submerges at least a portion of the rotor to cool the rotor. The utility model discloses a motor for vehicle, through the cooling liquid at the cooling water course circulation flow of stator, radiating vane rotates with the rotor is synchronous, and cooling oil contacts with at least part of rotor in order to carry out the heat exchange, on the one hand, dispel the heat to the motor through water-cooling, forced air cooling and oil cooling jointly; on the other hand, the motor is independently radiated by introducing air cooling to radiate the permanent magnet, so that the radiating performance of the motor is further improved, and the motor can normally and stably run.

Description

Motor for vehicle and vehicle with motor

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to a vehicle that is used for motor of vehicle and has it.

Background

With the rapid development of vehicles, the requirements of vehicle systems on the working performance of a driving motor are higher and higher, when the driving motor runs, parts on the driving motor can generate a large amount of heat, especially some parts sensitive to temperature, and when the driving motor runs at high temperature, the working performance of the driving motor can be reduced, and even the driving motor can be paralyzed and can not run.

In the related art, at present, in a cooling manner of oil cooling and/or water cooling, cooling fluid and cooling oil are in direct contact with a driving motor to directly cool the driving motor, but some parts of the driving motor cannot be in direct contact with the cooling fluid and the cooling oil, thereby causing a reduction in the operating performance of the driving motor.

Disclosure of Invention

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a motor for vehicle, the motor adopts water-cooling, forced air cooling and three kinds of cooling methods of oil-cooling, cools off the motor simultaneously, further improves the cooling radiating effect of motor.

The utility model discloses a vehicle with above-mentioned motor is further provided.

According to the utility model discloses a motor for vehicle of first aspect embodiment includes: the cooling device comprises a stator, a rotor and a shell, wherein the stator is provided with a cooling water channel; the rotor is disposed within the stator, the rotor comprising: a plurality of rotor segments, between two adjacent rotor segments, cooling fins are arranged to generate a cooling air flow when the rotor rotates; the stator and the rotor are both disposed within the housing, which is filled with cooling oil that submerges at least a portion of the rotor to cool the rotor.

According to the motor for the vehicle, the cooling liquid circularly flows in the cooling water channel of the stator, the radiating blades and the rotor synchronously rotate, the cooling oil is in contact with at least part of the rotor to perform heat exchange, and on one hand, the motor is radiated by water cooling, air cooling and oil cooling to improve the radiating performance of the motor; on the other hand, the motor is independently radiated by introducing air cooling to radiate parts which cannot be directly contacted with cooling liquid and cooling oil in the permanent magnet and the motor, so that the radiating performance of the motor is further improved, and the motor can normally and stably run.

According to the utility model discloses a some embodiments, a plurality of mounting holes along axial extension are seted up to the circumference of stator, be provided with cooling pipeline in the mounting hole.

Further, the one end of stator is provided with the shunt tubes, the other end of stator is provided with the collecting pipe, the shunt tubes is suitable for the orientation cooling tube pours into the coolant liquid into, the collecting pipe is suitable for the discharge the coolant liquid in the cooling tube, the shunt tubes the cooling tube and the collecting pipe is injectd the cooling water course.

Further, the shunt tube comprises: the first shunting part to the Nth shunting part are arranged around the axis of the motor; wherein the stator includes: a plurality of flow dividing regions, each of which is provided with a plurality of cooling pipelines, and the plurality of cooling pipelines are communicated with the corresponding first flow dividing parts; two or more adjacent first flow-dividing portions communicate with the second flow-dividing portion; two of the N-1 th diverging parts adjacent to the third diverging part communication … … of the adjacent two or more of the second diverging parts are in communication with the nth diverging part.

Optionally, the first flow-splitting section has a water inlet, and the diameter of the cooling line disposed adjacent to the water inlet in each of the flow-splitting regions is smaller than the diameter of the cooling line disposed away from the water inlet.

According to the utility model discloses a some embodiments, be provided with vortex portion on the radiating blade, vortex portion is for forming along axially extended's arch on the radiating blade, adjacent vortex portion is injectd and is led the oil groove, it follows to lead the oil groove radiating blade's radial extension.

Further, the radiation blade includes: the blade comprises a plurality of sub-blades arranged at equal angle intervals, connecting webs are arranged between every two adjacent sub-blades, and oil guide grooves are formed in the sub-blades and the connecting webs.

Furthermore, oil leakage holes are formed in the sub-blades and the connecting web.

According to some embodiments of the utility model, be provided with the collection oil box in the casing, the liquid level of the coolant oil in the collection oil box is located the air gap of the winding of the least significant end of rotor.

According to the utility model discloses vehicle of second aspect embodiment includes: the motor described in the above embodiments.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an electric machine according to an embodiment of the present invention;

FIG. 2 is a schematic view of a cooling gallery connection according to an embodiment of the present invention;

fig. 3 is a schematic view of a stator cooperating with a rotor according to an embodiment of the invention;

fig. 4 is a schematic view of a cooling fin according to an embodiment of the present invention;

fig. 5 is a schematic view of a mounting hole of a stator according to an embodiment of the present invention.

Reference numerals:

the motor (100) is provided with a motor,

a stator 10, a mounting hole 11, a shunt tube 12, a first shunt part 121, a second shunt part 122, a third shunt part 123, a fourth shunt part 124, a manifold 13, a cooling pipe 14,

the rotor 20, the rotor section 21, the radiating fins 22, the spoiler 221, the oil guide groove 222, the sub-fins 223, the connecting fins 224,

a housing 30.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

An electric machine 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 5.

As shown in fig. 1 and 3, a motor 100 for a vehicle according to an embodiment of a first aspect of the present invention includes: the cooling device comprises a stator 10, a rotor 20 and a shell 30, wherein the stator 10 is provided with a cooling water channel; the rotor 20 is disposed inside the stator 10, and the rotor 20 includes: a plurality of rotor segments 21, between two adjacent rotor segments 21, cooling fins 22 are provided to generate a cooling air flow when the rotor 20 rotates; the stator 10 and the rotor 20 are both disposed in a housing 30, and the housing 30 is filled with cooling oil that passes over at least a portion of the rotor 20 to cool the rotor 20.

Specifically, a cooling water channel is formed in the inner space of the stator 10, and the cooling liquid flows along the cooling water channel and contacts with the inner peripheral wall of the cooling water channel, so that the cooling liquid exchanges heat with the stator 10, thereby cooling the stator 10 and preventing the temperature of the stator 10 from being too high during the operation of the motor 100.

Wherein, the rotor 20 disposed inside the stator 10 is defined by a plurality of rotor segments 21, the plurality of rotor segments 21 are sequentially disposed on the shaft of the rotor 20 in the axial direction to form the rotor 20, and a heat dissipating blade 22 is disposed between two adjacent rotor segments 21, when the rotor 20 rotates, the heat dissipating blade 22 is rotated synchronously with the rotor 20 to generate a cooling air flow, and the rotor 20 is air-cooled to reduce the temperature of the rotor 20.

It should be noted that the permanent magnet in the motor 100 cannot directly contact with the cooling oil or the cooling liquid for cooling, and the permanent magnet in the motor 100 is sensitive to temperature, when the temperature of the permanent magnet is high, demagnetization of the permanent magnet is easily caused, and further, the working performance of the motor 100 is reduced, so that the motor 100 cannot normally work, or even the motor 100 is paralyzed, the cooling blades 22 and the rotor 20 rotate synchronously to generate cooling airflow to cool the permanent magnet in the motor 100, and the cooling airflow is used to cool the permanent magnet and parts of the motor 100 that cannot directly contact with the cooling liquid and the cooling oil, so that the motor 100 can effectively and stably operate.

Meanwhile, the rotor 20 and the stator 10 are both fixed in the housing 30, the cooling oil is filled in the housing 30, when the motor 100 does not work, the cooling oil at least overflows the bottom of the rotor 20, so that when the motor 100 runs, the cooling oil can be in contact with the rotor 20, and under the turbulent flow effect of the rotor 20, the cooling oil is sprayed on a plurality of windings of the rotor 20, and on the premise that the heat dissipation blades 22 perform air cooling on the rotor 20, the rotor 20 is further subjected to oil cooling, so that heat generated in the running process of the rotor 20 is further taken away.

It can be understood that the motor 100 circulates a cooling liquid in the cooling water channel through the cooling water channel inside the stator 10 to cool the stator 10 of the motor 100, so as to achieve a water cooling effect on the motor 100;

the motor 100 rotates synchronously with the rotor 20 through the heat dissipation blades 22 arranged between the adjacent rotor sections 21, and generates cooling air flow to cool the rotor 20 of the motor 100, so as to achieve the air cooling effect on the motor 100;

the motor 100 sprays the cooling oil into the rotor 20 and contacts with the inside of the rotor 20 to perform heat exchange when the rotor 20 rotates at a high speed by the cooling oil flowing through at least a portion of the rotor 20, thereby further cooling the rotor 20 of the motor 100 and achieving an oil cooling effect on the motor 100.

According to the motor 100 for the vehicle of the embodiment of the present invention, the cooling liquid flows in the cooling water channel of the stator 10 in a circulating manner, the heat dissipating blades 22 rotate synchronously with the rotor 20, and the cooling oil contacts at least a portion of the rotor 20 to perform heat exchange, and on one hand, the motor 100 is heat-dissipated by water cooling, air cooling and oil cooling to improve the heat dissipating performance of the motor 100; on the other hand, the air cooling is introduced to separately dissipate heat of the rotor 20, so as to dissipate heat of the permanent magnet and parts of the motor 100 that cannot be in direct contact with the coolant and the cooling oil, thereby further improving heat dissipation performance of the motor 100, and enabling the motor 100 to operate normally and stably.

As shown in fig. 5, according to some embodiments of the present invention, a plurality of mounting holes 11 extending along the axial direction are formed in the circumferential direction of the stator 10, and cooling pipelines 14 are disposed in the mounting holes 11.

Specifically, a plurality of mounting holes 11 are formed in a circumferential direction of one end of the stator 10, the plurality of mounting holes 11 extend toward the other end of the stator 10 along an axial direction of the stator 10 and penetrate through the stator 10, and a cooling pipe 14 is correspondingly formed in each mounting hole 11, so that a cooling liquid is introduced into the cooling pipe 14, the cooling liquid is in direct contact with an inner circumferential wall of the cooling pipe 14, and takes away a part of heat generated inside the stator 10 to cool the stator 10, thereby enabling the stator 10 to stably operate.

As shown in fig. 2, one end of the stator 10 is provided with a shunt pipe 12, the other end of the stator 10 is provided with a manifold 13, the shunt pipe 12 is adapted to inject the cooling fluid toward the cooling pipe 14, the manifold 13 is adapted to discharge the cooling fluid in the cooling pipe 14, and the shunt pipe 12, the cooling pipe 14 and the manifold 13 define a cooling water passage.

Specifically, in the axial direction of the stator 10, one end of the stator 10 is provided with a shunt pipe 12, the shunt pipe 12 is connected with a cooling pipeline 14 passing through one end of the stator 10, the other end of the stator 10 is provided with a collecting pipe 13, and the collecting pipe 13 is connected with the cooling pipeline 14 passing through the other end of the stator 10, so that the shunt pipe 12, the cooling pipeline 14 and the collecting pipe 13 form a complete cooling water channel.

Like this, when motor 100 moves, pour into the coolant liquid into shunt tubes 12 in, the coolant liquid in the shunt tubes 12 enters into different cooling pipe 14 along shunt tubes 12 in, the coolant liquid in the cooling pipe 14 with stator 10 direct contact with carry out the heat exchange with stator 10, converge again the coolant liquid in different cooling pipe 14 through collecting pipe 13, and discharge along collecting pipe 13, in order to accomplish the water-cooling to stator 10, thereby accomplish the heat dissipation cooling to stator 10, and then avoid stator 10's operating temperature too high, improve stator 10's working property.

Further, the shunt 12 includes: first to nth diverging portions 121 to N disposed around the axis of the motor 100; wherein, stator 10 includes: a plurality of flow dividing regions, each of which is provided with a plurality of cooling pipelines 14, and each of the plurality of cooling pipelines 14 is communicated with the corresponding first flow dividing portion 121; two or more adjacent first flow dividing portions 121 communicate with the second flow dividing portion 122; two adjacent N-1 th flow dividing portions where two or more adjacent second flow dividing portions 122 communicate … … with the third flow dividing portion 123 communicate with the nth flow dividing portion.

Specifically, the cooling pipe 14 of the stator 10 is axially inserted, and as shown in fig. 2, one end of each of the plurality of cooling pipes 14 is communicated with the corresponding first flow dividing portion 121, one end of each of the cooling pipes 14 is connected to the flow dividing pipe 12, the other end of each of the cooling pipes 14 is connected to the collecting pipe 13, and the first flow dividing portions 121 to the nth flow dividing portions of the flow dividing pipes 12 are axially arranged around the motor 100, that is, an annular second flow dividing portion 122 is arranged outside the first flow dividing portion 121, an annular third flow dividing portion 123 … … is arranged outside the second flow dividing portion 122, an annular nth flow dividing portion is arranged outside the nth-1 flow dividing portion, and the first flow dividing portions 121 to the nth flow dividing portions are sequentially communicated.

Further, the coolant may sequentially flow through the nth and N-1 th diverging parts … … and the first diverging part 121 to uniformly flow into the cooling pipe 14 in the diverging region communicating with the first diverging part 121 to perform heat exchange cooling of the stator 10, thereby improving the operating performance of the stator 10.

It is to be understood that, in the embodiment shown in fig. 2, the fourth flow dividing portion 124 communicates with the third flow dividing portion 123, the third flow dividing portion 123 communicates with the second flow dividing portion 122, the second flow dividing portion 122 communicates with the first flow dividing portion 121, and the first flow dividing portion 121 communicates with the plurality of cooling pipes 14 in the corresponding flow dividing region, so that the cooling liquid flows into the third flow dividing portion 123 after being primarily divided by the fourth flow dividing portion 124; the flow is branched again by the third branching portion 123 and then flows into the second branching portion 122; the refrigerant is split again by the second split portion 122, flows into the first split portion 121, and finally uniformly flows into the plurality of cooling pipes 14, thereby cooling the stator 10.

Like this, set up through encircleing shunt tubes 12 around motor 100 axis, and first reposition of redundant personnel portion 121 to the nth reposition of redundant personnel portion in the reposition of redundant personnel region communicate in proper order, make the coolant liquid shunt many times in shunt tubes 12, so that the reposition of redundant personnel effect of coolant liquid is better, the flow that enters into the coolant liquid in many cooling lines 14 is roughly the same, thereby make the coolant liquid evenly shunt to in this different cooling lines 14 in reposition of redundant personnel region, make the heat transfer between shunt tubes 12 and the stator 10 more abundant, and then improve the cooling effect to stator 10.

Optionally, the first flow-splitting section 121 has water inlets, and the diameter of the cooling line 14 disposed adjacent to the water inlets in each flow-splitting region is smaller than the diameter of the cooling line 14 disposed away from the water inlets.

Specifically, each of the plurality of cooling lines 14 is provided in each of the divided regions, the plurality of cooling lines 14 are communicated with the corresponding first divided portion 121, a water inlet is provided in the first divided portion 121, among the plurality of cooling lines 14 in each of the divided regions, the cooling line 14 near the water inlet of the first divided portion 121 in the divided region has a small diameter, and the cooling line 14 far from the water inlet of the first divided portion 121 in the divided region has a large diameter, so that the cooling liquid in the water inlet is uniformly divided into the plurality of cooling lines 14 in the divided region, and the flow rates of the cooling liquid in the different cooling lines 14 are uniform, so that the cooling liquid uniformly cools the stator 10, and the stator 10 is prevented from being locally overheated.

As shown in fig. 4, according to some embodiments of the present invention, the heat dissipating blades 22 are provided with the spoiler 221, the spoiler 221 is a protrusion extending axially on the heat dissipating blades 22, the adjacent spoiler 221 defines the oil guiding groove 222, and the oil guiding groove 222 extends radially along the heat dissipating blades 22.

Specifically, each heat dissipating blade 22 on the rotor 20 is provided with a flow disturbing part 221, the raised flow disturbing part 221 extends in the axial direction of the rotor 20, when the heat dissipating blade 22 rotates synchronously with the rotor 20 at a high speed, the flow disturbing parts 221 on the heat dissipating blades 22 bring up cooling oil, so that the cooling oil is sprayed to the inside of the rotor 20 under the driving of the flow disturbing parts 221, so as to perform oil cooling on the rotor 20, and the adjacent flow disturbing parts 221 form an oil guide groove 222, and the oil guide grooves 222 extend towards the center of the heat dissipating blades 22, so that on the premise that the heat dissipating blades 22 perform air cooling on the rotor 20, the cooling oil is sprayed to the winding of the rotor 20 along the oil guide grooves 222 and contacts with the winding of the rotor 20, thereby further cooling the rotor 20, that is, the rotor 20 is simultaneously subjected to air cooling and oil cooling, and further improving the cooling effect on the rotor 20.

As shown in fig. 4, the heat dissipating fin 22 includes: a plurality of sub-blades 223 are arranged at equal angular intervals, a connecting web 224 is arranged between adjacent sub-blades 223, and oil guide grooves 222 are arranged on the sub-blades 223 and the connecting web 224.

Specifically, the plurality of sub-blades 223 are disposed on the heat dissipating blade 22 at equal angular intervals, so that the plurality of sub-blades 223 have equally spaced gaps therebetween, so that when the heat dissipating blade 22 rotates at a high speed with the rotor 20, the cooling oil may overflow from the gaps between the plurality of sub-blades 223, so that the cooling oil is sprayed to the inside of the rotor 20 along with the rotation of the heat dissipating blade 22 to perform oil-cooling of the rotor 20, and the adjacent sub-blades 223 are connected by the connecting web 224 to reinforce the structural strength of the heat dissipating blade 22, thereby improving the service life of the heat dissipating blade 22.

Wherein, the oil guiding grooves 222 are respectively arranged on the sub-blades 223 and the connecting web 224, the oil guiding grooves 222 on the sub-blades 223 and the connecting web 224 extend towards the center of the heat dissipating blade 22, so that the cooling oil enters the rotor 20 along the oil guiding grooves 222 of the sub-blades 223 and the connecting web 224, when the heat dissipating blade 22 and the rotor 20 rotate synchronously, the cooling oil is sprayed onto the winding of the rotor 20 along the sub-blades 223 and the oil guiding grooves 222 of the connecting web 224, the cooling oil is in contact with the winding of the rotor 20, and exchanges heat with the winding of the rotor 20, so as to further cool the rotor 20 on the premise of air cooling the rotor 20, thereby improving the cooling effect of the rotor 20.

Meanwhile, the heat dissipating blades 22 are fixedly arranged on the rotating shaft of the rotor 20, a plurality of small holes are formed in the diameter of the rotating shaft, when the rotating shaft synchronous rotor 20 rotates at a high speed, cooling oil flows towards the center of the heat dissipating blades 22 along the oil guiding groove 222 and flows into the rotating shaft of the rotor 20, and the cooling oil flows into the rotating shaft of the rotor 20 along the small holes in the rotating shaft, so that the inside of the rotating shaft of the rotor 20 is cooled and dissipated, the rotor 20 is cooled more comprehensively, and the heat dissipating performance of the motor 100 is improved.

Further, oil leakage holes are formed in the sub-vane 223 and the connecting web 224. Thus, when the cooling fin 22 rotates synchronously with the rotor 20 at a high speed, the cooling oil enters the rotor 20 along the oil guide groove 222, and on the premise that the cooling oil is sprayed to the windings of the rotor 20 along the oil guide groove 222, the cooling oil is sprayed to the inside of the rotor 20 from the oil leakage holes of the cooling fin 22 and contacts with the inside of the rotor 20, so as to further perform oil cooling on the rotor 20, thereby improving the cooling effect on the rotor 20.

According to some embodiments of the present invention, an oil collection box is provided in the housing 30, and the level of the cooling oil in the oil collection box is located at the air gap of the lowest end winding of the rotor 20.

That is, the liquid level of the cooling oil in the oil collecting box is higher than the lowest end of the rotor 20, and the cooling oil is filled in the air gap of the winding of the rotor 20, when the rotor 20 rotates at a high speed, the cooling oil dropping above the housing 30 and the cooling oil in the air gap of the winding below are carried by the rotor 20 rotating at a high speed, so that the cooling oil is uniformly sprayed inside the rotor 20, the cooling oil is in contact with the inside of the rotor 20, the rotor 20 is subjected to oil cooling, and the cooling effect on the rotor 20 is improved.

According to the utility model discloses vehicle of second aspect embodiment includes: in the motor 100 of the above embodiment, the cooling liquid circulates in the cooling water channel, the heat dissipation blades 22 rotate in the rotor section 21, and the cooling oil flows along the oil guiding groove 222 and is sprayed on the oil leakage holes, so as to simultaneously perform water cooling, air cooling, and oil cooling on the motor 100, thereby further enhancing the cooling and heat dissipation effects on the motor 100, and further improving the vehicle practicability and the working performance.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more.

In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An electric machine (100) for a vehicle, characterized by comprising:

a stator (10), the stator (10) being provided with a cooling water channel;

a rotor (20), the rotor (20) disposed within the stator (10), the rotor (20) comprising: a plurality of rotor segments (21), wherein a heat radiating blade (22) is arranged between two adjacent rotor segments (21) to generate cooling air flow when the rotor (20) rotates; and

the stator (10) and the rotor (20) are both arranged in the shell (30), and cooling oil is filled in the shell (30) and passes through at least part of the rotor (20) to cool the rotor (20).

2. The electric machine (100) for vehicle according to claim 1, wherein the stator (10) has a plurality of axially extending mounting holes (11) formed in a circumferential direction thereof, and cooling pipes (14) are disposed in the mounting holes (11).

3. The electric machine (100) for a vehicle according to claim 2, characterized in that one end of the stator (10) is provided with a shunt tube (12), the other end of the stator (10) is provided with a manifold tube (13), the shunt tube (12) is adapted to inject the cooling liquid toward the cooling line (14), the manifold tube (13) is adapted to discharge the cooling liquid inside the cooling line (14), and the shunt tube (12), the cooling line (14), and the manifold tube (13) define the cooling water passage.

4. The electric machine (100) for a vehicle according to claim 3, characterized in that the shunt tube (12) comprises: a first to an Nth branching section (121) provided around an axis of the motor (100); wherein

The stator (10) includes: a plurality of flow dividing regions, each of which is provided with a plurality of cooling pipelines (14), and each of the plurality of cooling pipelines (14) is communicated with the corresponding first flow dividing part (121);

two or more adjacent first flow-dividing portions (121) communicate with the second flow-dividing portion (122); two of the N-1 th flow dividing portions adjacent to the second flow dividing portion (122) and the third flow dividing portion (123) communicating … … communicate with the Nth flow dividing portion.

5. The electric machine (100) for vehicles according to claim 4, characterized in that the first branch portion (121) has a water inlet, and the diameter of the cooling pipe (14) disposed adjacent to the water inlet in each branch region is smaller than the diameter of the cooling pipe (14) disposed away from the water inlet.

6. The electric machine (100) for a vehicle according to claim 1, wherein a spoiler portion (221) is provided on the cooling fin (22), the spoiler portion (221) is a protrusion formed on the cooling fin (22) to extend in the axial direction, and the adjacent spoiler portions (221) define oil guide grooves (222), the oil guide grooves (222) extending in the radial direction of the cooling fin (22).

7. The motor (100) for a vehicle according to claim 6, wherein the heat dissipating blade (22) comprises: the blade comprises a plurality of sub-blades (223) arranged at equal angular intervals, a connecting web (224) is arranged between every two adjacent sub-blades (223), and oil guide grooves (222) are formed in the sub-blades (223) and the connecting web (224).

8. The electric machine (100) for vehicles according to claim 7, wherein oil leakage holes are provided on both the sub-blade (223) and the connecting web (224).

9. The electric machine (100) for vehicle according to claim 1, characterized in that an oil collecting box is provided in the housing (30), and the liquid level of the cooling oil in the oil collecting box is located at the air gap of the winding at the lowest end of the rotor (20).

10. A vehicle, characterized by comprising: the electrical machine (100) of any of claims 1-9.

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