High-efficiency motor based on oil-to-electricity conversion of commercial vehicle

Abstract

The invention discloses a commercial vehicle oil-to-electricity-based high-efficiency motor, and particularly relates to the technical field of high-efficiency motors, the commercial vehicle oil-to-electricity-based high-efficiency motor comprises a stator part and a rotor rod rotating in the stator part, the commercial vehicle oil-to-electricity-based high-efficiency motor further comprises a machine shell wrapping the stator part, and a first oil cavity is formed between the machine shell and one end of the stator part; the stator part is provided with an inner-layer flat wire winding, the inner-layer flat wire winding comprises a first end group which is arranged in a circular array, and the first end group comprises a first switching end and a second switching end. According to the high-efficiency motor provided by the invention, the cooling oil is directly sprayed to the first switching end and the second switching end through the plurality of inclined nozzles so as to improve the heat dissipation efficiency, and then the plurality of inclined nozzles are in butt joint with the interface in sequence, so that the cooling oil is sprayed out of the plurality of drip holes and the stator part and the rotor part are subjected to heat dissipation at the same time; and the cooling oil flowing in the inner probe rod can absorb and dissipate heat of the stator part, so that the heat dissipation effect of the motor is improved through multi-directional heat dissipation, and the efficiency of the motor is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of high-efficiency motors, and in particular to a high-efficiency motor based on oil-to-electric conversion for commercial vehicles. Background Art

[0002] As a type of high-efficiency motor, flat wire motors use flat coils instead of traditional round coils. This design can reduce the size and weight of the motor while improving heat dissipation performance, thereby improving efficiency. At the same time, flat wire motors can arrange coils more closely to increase the coil filling rate. Compared with traditional motors, they have higher power density, so that flat wire motors can provide higher power output in the same volume.

[0003] According to patent announcement number CN115459494A, announcement date: 2022-12-09, a high-efficiency oil-cooled motor is disclosed, including a shell, a front cover plate, a rear cover plate, a stator, a rotating shaft and a rotor core, the stator is arranged in the shell, the front cover plate and the rear cover plate are respectively fixed at the two ends of the shell, the rotor core is arranged on the rotating shaft, and the two ends of the rotating shaft are respectively rotatably arranged on the front cover plate and the rear cover plate through bearings, the rotating shaft is also provided with an axial oil passage passing through the rotating shaft, the rotating shaft is also provided with a plurality of middle radial oil passages, and the plurality of middle radial oil passages are connected with the axial oil passage; the rotor core is also provided with a plurality of rotor oil passages extending from the center of the rotor core to the two ends and the outside, The rotor oil channel is communicated with the corresponding middle radial oil channel. A cooling oil inlet B is also provided on the front cover plate, and the cooling oil inlet B is communicated with the axial oil channel. A water channel arranged along a circumferential spiral is provided in the side wall of the shell. A water channel inlet and a water channel outlet connected to a thermal management water pump are also provided on the side wall of the shell. A cooling oil pipe is also passed through the water channel. A cooling oil inlet A is also provided on the side wall of the shell. An annular groove oil channel is also provided on the outer wall of the stator. The cooling oil inlet A passes through the shell between two adjacent water channels and is communicated with the annular groove oil channel. One end of the cooling oil pipe is inserted into the rear cover plate and communicates with the inside of the shell. The other end of the cooling oil pipe is communicated with the cooling oil inlet A and the cooling oil inlet B.

[0004] In the prior art including the above-mentioned patent, the heat dissipation of commercial vehicle high-efficiency motors currently includes natural heat dissipation through the housing, and rapid heat dissipation through air cooling, water cooling, and oil cooling. The more common and most commonly used cooling method is oil cooling, which circulates the cooling oil in the high-efficiency motor and cooperates with external heat dissipation to bring out the heat in the motor, thereby achieving the purpose of efficient heat dissipation. The current method of pumping cooling oil into the high-efficiency motor includes the axial oil channels and radial oil channels in the shaft in the above-mentioned patent, so that the cooling oil is pumped into the motor along the shaft to achieve the heat dissipation effect. Compared with traditional air cooling or stator oil spraying, this method has a stronger heat dissipation effect. The flat wires in high-efficiency motors will generate more heat when in use, and the two ends of the flat wires on the stator are usually where the heat is highest. This is mainly because when the motor is running and the current passes through the flat wires, the connection points between the terminal and the coil (i.e., the two ends of the flat wires) usually bear a larger current, so these locations are prone to generate higher resistance heat. When the cooling oil in the above-mentioned patent is sprayed along the shaft and the rotor, although the sprayed cooling oil fills the cavity between the housing and the stator and the rotor, the sprayed cooling oil does not directly act on the two ends of the flat wire, so the heat dissipation effect on the two ends of the flat wire is poor. Summary of the invention

[0005] The purpose of the present invention is to provide a high-efficiency motor based on oil-to-electric conversion of commercial vehicles to solve the above-mentioned technical problems.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: A high-efficiency motor based on oil-to-electric conversion of commercial vehicles, comprising a stator component and a rotor rod rotating therein, and also comprising a housing wrapped around the stator component, wherein a first oil chamber is provided between the housing and one end of the stator component; The stator component is provided with an inner flat wire winding, the inner flat wire winding includes a first end group arranged in a circular array, the first end group includes a first adapter end and a second adapter end, an inner probe rod in a circular array and respectively located between the first adapter end and the second adapter end is fixedly installed at the end of the stator component, and a plurality of drip holes provided on the inner probe rod face the rotor component fixedly installed on the outer wall of the rotor rod, and an interface connected to the plurality of drip holes is provided on the inner probe rod; The spray plate fixedly mounted on the outer wall of the rotor rod moves in the first oil chamber, and the first adapter end, the second adapter end and the interface are respectively located on the oil spray paths of the multiple oblique nozzles opened on the side of the spray plate.

[0007] Preferably, a second oil chamber is provided between the casing and the other end of the stator component, and a plurality of oil passages are provided on the stator component to interconnect the first oil chamber and the second oil chamber.

[0008] Preferably, a notch is provided on the outer wall of one side of the inner probe rod, and the notch is located on the oil injection path of the oblique nozzle.

[0009] Preferably, it also includes a middle layer flat wire winding, the middle layer flat wire winding includes a second end group arranged in a circular array, the second end group includes a third transfer end and a fourth transfer end, the third transfer end is attached to the first transfer end, and the fourth transfer end is attached to the second transfer end, and the third transfer end and the fourth transfer end are respectively located on multiple inclined nozzle oil injection paths.

[0010] Preferably, the fourth adapter end is connected to an outer wall of a front side of the second adapter end in an arc shape, and the third adapter end is connected to an outer wall of a front side of the first adapter end in an arc shape.

[0011] Preferably, it further comprises an outer flat wire winding, the outer flat wire winding comprises a third end group arranged in a circular array, the third end group comprises a fifth transfer end and a sixth transfer end, the fifth transfer end and the sixth transfer end are staggered with the third transfer end and the fourth transfer end.

[0012] Preferably, partition members arranged in a circular array are fixedly mounted on the stator member, and the partition members are respectively located on one side of the fifth adapter end and the sixth adapter end in the third end group, and the oil passage is located between every two partition members.

[0013] Preferably, the partition member is respectively attached to the fifth adapter end and the sixth adapter end in the third end group, and the partition member is located on the oil injection path of the multiple inclined nozzles.

[0014] Preferably, the outer wall of the spray plate on the side opposite to the rotor member is fixedly mounted with first blades arranged in a circular array, and a curved portion is provided at one end of the fourth adapter end located at the fifth adapter end.

[0015] Preferably, the outer wall of the spray plate on one side of the rotor component is fixedly mounted with second blades arranged in a circular array, and the stator component is provided with winding grooves arranged in a circular array, and a gap oil channel is provided between every two adjacent winding grooves at the end of the stator component.

[0016] In the above technical scheme, the present invention provides a high-efficiency motor based on commercial vehicle oil-to-electricity conversion, which has the following beneficial effects: cooling oil is directly sprayed to the first adapter end and the second adapter end through multiple oblique nozzles, so that the heat dissipation efficiency of the first adapter end and the second adapter end is increased under the action of high-speed flowing cooling oil, and then the multiple oblique nozzles are sequentially connected with the interface, so that multiple drip holes spray cooling oil and dissipate heat to the stator and rotor parts at the same time, and the cooling oil flowing in the inner probe rod can absorb and dissipate the heat of the stator parts, and then the heat dissipation effect of the motor is improved through multi-directional heat dissipation, thereby improving the motor efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 A schematic diagram of the internal structure of a casing provided by an embodiment of the present invention; Figure 3 A schematic diagram of the internal structure of a housing provided by an embodiment of the present invention; Figure 4 A schematic diagram of a cross-sectional structure of a casing provided by an embodiment of the present invention; Figure 5 A schematic diagram of a partial cross-sectional structure of a housing provided by an embodiment of the present invention; Figure 6 A schematic diagram of the structure of the oblique nozzle spraying on the upper part of the partition member provided in an embodiment of the present invention; Figure 7 A schematic diagram of the structure of the oblique nozzle spraying on the upper portion of the fourth adapter end provided in an embodiment of the present invention; Figure 8 A schematic diagram of the structure of the cooling oil splashing on the third adapter end provided by an embodiment of the present invention; Fig. 9 A schematic diagram of the structure of the cooling oil splashing on the first adapter end provided by an embodiment of the present invention; Fig.10 The embodiment of the present invention provides Figure 2 The enlarged structural diagram at A in the middle; Fig.11 The embodiment of the present invention provides Figure 2 The enlarged structural diagram at B in the middle; Fig.12 The embodiment of the present invention provides Figure 3 The enlarged structural diagram at C in the middle; Fig.13 The embodiment of the present invention provides Figure 5 Enlarged structural diagram at point D in the middle.

[0019] Description of reference numerals: 1. Casing; 2. Rotor rod; 3. Stator member; 4. Inner probe rod; 5. Fifth adapter terminal; 11. Oil outlet; 12. First oil chamber; 13. Second oil chamber; 21. Oil inlet passage; 22. Spray plate; 23. Oblique spray nozzle; 24. First blade; 25. Second blade; 26. Rotor member; 27. Gap cavity; 31. Winding groove; 32. Oil passage; 33. Partition member; 34. Gap oil passage; 41. Interface; 42. Drip hole; 43. Notch; 51. Sixth adapter terminal; 52. Third adapter terminal; 53. Fourth adapter terminal; 54. First adapter terminal; 55. Second adapter terminal. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1-13 As shown, a high-efficiency motor based on oil-to-electric conversion of commercial vehicles includes a stator component 3 and a rotor rod 2 rotating therein, and also includes a housing 1 wrapped around the stator component 3, and a first oil chamber 12 is provided between the housing 1 and one end of the stator component 3; The stator component 3 is provided with an inner flat wire winding, which includes a first end group arranged in a circular array, and the first end group includes a first adapter end 54 and a second adapter end 55. An inner probe rod 4 in a circular array and respectively located between the first adapter end 54 and the second adapter end 55 is fixedly installed at the end of the stator component 3, and a plurality of drip holes 42 provided on the inner probe rod 4 face the rotor component 26 fixedly installed on the outer wall of the rotor rod 2, and an interface 41 connected to the plurality of drip holes 42 is provided on the inner probe rod 4; The spray plate 22 fixedly mounted on the outer wall of the rotor rod 2 moves in the first oil chamber 12 , and the first adapter end 54 , the second adapter end 55 and the interface 41 are respectively located on the oil spray paths of the multiple oblique nozzles 23 opened on the side of the spray plate 22 .

[0022] Specifically, an oil inlet passage 21 connected to a plurality of oblique nozzles 23 is provided in the rotor rod 2, a gap cavity 27 connected to the first oil cavity 12 is provided between the outer wall of the rotor component 26 and the inner wall of the stator component 3, the inner probe rod 4 is fixedly mounted on the inner wall of the stator component 3, and the drip hole 42 is located in the gap cavity 27, the stator component 3 is provided with winding grooves 31 arranged in a circular array, and the inner flat wire winding is arranged in the winding grooves 31. The stator component 3 is fixedly mounted in the housing 1.

[0023] Furthermore, cooling oil is pumped into the oil inlet 21 by an oil pump, and then the cooling oil is sprayed out from multiple oblique nozzles 23 along the oil inlet 21, and then as the rotor rod 2 rotates in the stator component 3, the rotor rod 2 drives the spray plate 22 to rotate, and at the same time, the multiple oblique nozzles 23 successively pass over the first adapter end 54, the second adapter end 55 and the interface 41, and the multiple oblique nozzles 23 are directly sprayed on the first adapter end 54 and the second adapter end 55, so that the rapidly sprayed cooling oil dissipates the heat of the first adapter end 54 and the second adapter end 55. Compared with traditional immersion cooling, directly spraying on the first adapter end 54 and the second adapter end 55 can improve the heat dissipation effect of the first adapter end 54 and the second adapter end 55, and at the same time, the cooling oil passing along the oil inlet 21 can dissipate a certain amount of heat to the rotor component 26 on the rotor rod 2.

[0024] Furthermore, when the inclined nozzle 23 is rotatingly sprayed and the inclined nozzle 23 is directly opposite to the interface 41, the cooling oil sprayed at high speed is poured into the inner probe rod 4, and then the cooling oil poured into the inner probe rod 4 flows out to the gap cavity 27 along the multiple drip holes 42. At this time, the heat of the stator component 3 is absorbed by the inner probe rod 4, and then the cooling oil flowing in the inner probe rod 4 takes away the heat on the inner probe rod 4, thereby achieving a certain heat dissipation effect on the stator component 3. Furthermore, the cooling oil flowing into the gap cavity 27 can dissipate heat for the rotor component 26 and the inner wall of the stator component 3. Under the continuous oil discharge of the multiple drip holes 42, the oil in the gap cavity 27 is discharged into the first oil cavity 12.

[0025] In the above technical solution, cooling oil is sprayed directly to the first adapter end 54 and the second adapter end 55 through multiple inclined nozzles 23, so that the heat dissipation efficiency of the first adapter end 54 and the second adapter end 55 is increased under the action of the high-speed flowing cooling oil, and then the multiple inclined nozzles 23 are connected with the interface 41 in sequence, so that the multiple drip holes 42 spray out cooling oil and dissipate heat to the stator part 3 and the rotor part 26 at the same time, and the cooling oil flowing in the inner probe rod 4 can absorb and dissipate the heat of the stator part 3, and then improve the heat dissipation effect of the motor through multi-directional heat dissipation, thereby improving the motor efficiency.

[0026] As an embodiment further provided by the present invention, a second oil chamber 13 is provided between the casing 1 and the other end of the stator component 3, and a plurality of oil passages 32 are provided on the stator component 3 to connect the first oil chamber 12 and the second oil chamber 13 to each other.

[0027] Specifically, the housing 1 is provided with an oil outlet 11 , and a part of the structure of the inner flat wire winding is located in the second oil chamber 13 .

[0028] Furthermore, by using multiple oil passages 32, when the oblique nozzle 23 rotates and sprays, the oblique nozzle 23 directly sprays cooling oil to the first adapter end 54 and the second adapter end 55 to dissipate heat, thereby accelerating the heat dissipation efficiency of the first adapter end 54 and the second adapter end 55, and when the multiple oblique nozzles 23 are sequentially docked with the interface 41, the cooling oil is sprayed from the multiple drip holes 42 and dissipates heat to the inner wall of the stator component 3 and the rotor component 26 at the same time. Then the cooling oil gathers in the first oil chamber 12, and the oil pressure gradually increases when the cooling oil gathers in the first oil chamber 12. At this time, under the action of the oil pressure, the cooling oil begins to flow along the multiple oil passages 32 to the second oil chamber 13, and then the cooling oil gathers in the second oil chamber 13, and the flowing cooling oil dissipates heat to the inner layer flat wire winding in the second oil chamber 13, and then the cooling oil in the second oil chamber 13 is discharged along the oil outlet 11 and circulated through the oil pump to dissipate heat.

[0029] Furthermore, when the cooling oil passes through the plurality of oil passages 32 on the stator component 3 , the cooling oil in the oil passages 32 can absorb the heat on the stator component 3 , thereby achieving further heat dissipation for the stator component 3 .

[0030] As another embodiment provided by the present invention, a notch 43 is provided on the outer wall of one side of the inner probe rod 4 , and the notch 43 is located on the oil injection path of the inclined nozzle 23 .

[0031] Specifically, in order to enable the oblique nozzle 23 to spray heat to the first adapter end 54 and the second adapter end 55 more comprehensively, as shown in FIG. Fig. 9 As shown in the direction of the middle arrow, there is a certain angle between the direction of the oblique nozzle 23 and the first adapter end 54 and the second adapter end 55. When the spray plate 22 rotates, the oblique nozzle 23 sprays on the front of the first adapter end 54 and the second adapter end 55 in sequence, and then as the spray plate 22 continues to rotate, the oblique nozzle 23 sprays on the notch 43 on the inner probe rod 4 in sequence. At this time, under the shielding of the notch 43, the cooling oil sprayed by the oblique nozzle 23 is splashed on the back of the first adapter end 54 and the second adapter end 55, so that the cooling oil is splashed by the direct spraying of the oblique nozzle 23 and the shielding of the notch 43, so that the first adapter end 54 and the second adapter end 55 are more comprehensively cooled. Compared with the impact cooling of one side of the first adapter end 54 and the second adapter end 55, the side walls of both sides of the first adapter end 54 and the second adapter end 55 are impact cooled, which can improve the heat dissipation effect.

[0032] As another embodiment provided by the present invention, it also includes a middle-layer flat wire winding, the middle-layer flat wire winding includes a second end group arranged in a circular array, the second end group includes a third transfer end 52 and a fourth transfer end 53, the third transfer end 52 is attached to the first transfer end 54, and the fourth transfer end 53 is attached to the second transfer end 55, the third transfer end 52 and the fourth transfer end 53 are respectively located on the oil injection path of multiple inclined nozzles 23.

[0033] Specifically, the middle layer flat wire winding is arranged in the winding groove 31, and the middle layer flat wire winding is adjacent to the inner layer flat wire winding. The middle layer flat wire winding serves as an increased flat wire winding layer, which improves the power density and efficiency of the motor. As the number of winding layers increases, the copper wire filling rate of the motor increases, and the cross-sectional area of ​​the wire increases, thereby reducing the resistance of the wire. During the rotation of the spray plate 22, the oblique nozzle 23 not only dissipates heat to the first adapter end 54 and the second adapter end 55, but also, since the third adapter end 52 and the fourth adapter end 53 are respectively located on the oil spraying paths of the plurality of oblique nozzles 23, the oblique nozzle 23 will spray the third adapter end 52, the first adapter end 54, the fourth adapter end 53 and the second adapter end 55 in sequence, and the cooling oil sprayed through the oblique nozzle 23 directly acts on the adapter end of the flat wire winding, so that the adapter end can be cooled by the rapidly sprayed cooling oil, so that the middle-layer flat wire winding and the inner-layer flat wire winding can be directly cooled by the direct spraying of the oblique nozzle 23, and the shielding of the third adapter end 52 and the fourth adapter end 53 by the first adapter end 54 and the second adapter end 55 during the spraying process is reduced, so that the cooling oil sprayed by the oblique nozzle 23 is fully utilized.

[0034] As another embodiment provided by the present invention, the fourth adapter end 53 and the outer wall of the front side of the second adapter end 55 are connected in an arc shape, and the third adapter end 52 and the outer wall of the front side of the first adapter end 54 are connected in an arc shape.

[0035] Specifically, Figure 8 As shown, the outer wall of the third adapter end 52 and the first adapter end 54 on one side opposite to the fourth adapter end 53 and the second adapter end 55 is the front side, and the outer wall of the fourth adapter end 53 and the second adapter end 55 on the side adjacent to the third adapter end 52 and the first adapter end 54 is the front side.

[0036] When the spray plate 22 rotates with the rotor rod 2, the oblique nozzles 23 on the spray plate 22 first impact Figure 8The cooling oil sprayed from the oblique nozzle 23 passes over the first adapter end 54, and then the spray plate 22 rotates and the cooling oil sprayed from the oblique nozzle 23 passes over the first adapter end 54. Then, the cooling oil sprayed from the oblique nozzle 23 begins to spray the fourth adapter end 53 and the second adapter end 55. When the cooling oil sprayed from the oblique nozzle 23 sweeps along the arc-shaped outer wall connected to the fourth adapter end 53 and the second adapter end 55 and the fourth adapter end 53 and the second adapter end 55, the sprayed cooling oil sequentially sweeps along the back of the third adapter end 52. The sweeping sputtering is performed, so that the front and back sides of the third adapter end 52 are sprayed and cooled. Similarly, when the cooling oil sprayed by the oblique nozzle 23 passes over the second adapter end 55, the oblique nozzle 23 starts to spray the first end group and the second end group of the next group, and when the oblique nozzle 23 sprays the first end group and the second end group in the next group, the cooling oil sprayed by the third adapter end 52 and the first adapter end 54 in the next group will be splashed on the back side of the fourth adapter end 53 in the previous group. Therefore, during the process of the oblique nozzle 23 rotating and spraying, the front and back sides of the third adapter end 52 and the front and back sides of the fourth adapter end 53 in all the first end groups and the second end groups can be sprayed. The inclined nozzle 23 begins to spray onto the notch 43 on the inner probe rod 4. At this time, under the shielding of the notch 43, the cooling oil sprayed from the inclined nozzle 23 splashes onto the back sides of the first adapter end 54 and the second adapter end 55. Thus, the cooling oil is splashed by the direct spraying of the inclined nozzle 23 and the shielding of the notch 43, thereby dissipating the heat of the first adapter end 54 and the second adapter end 55 more comprehensively.

[0037] Therefore, the cooling oil sprayed through the oblique nozzle 23 fully impacts the adapter end, thereby avoiding the problem of poor heat dissipation caused by the limited impact surface of the adapter end due to the shielding between the adapter ends.

[0038] As the optimal embodiment provided by the present invention, it also includes an outer flat wire winding, which includes a third end group arranged in a circular array, and the third end group includes a fifth transfer terminal 5 and a sixth transfer terminal 51, and the fifth transfer terminal 5 and the sixth transfer terminal 51 are alternately distributed with the third transfer terminal 52 and the fourth transfer terminal 53.

[0039] Specifically, the outer flat wire winding is arranged in the winding slot 31, and the outer flat wire winding is adjacent to the middle flat wire winding. The outer flat wire winding is a further added flat wire winding layer, which further improves the power density and efficiency of the motor. The inner flat wire winding, the middle flat wire winding and the outer flat wire winding are sequentially distributed from inside to outside along the radial direction, such as Figure 6 shown.

[0040] When the spray plate 22 rotates with the rotation of the rotor rod 2, the oblique nozzle 23 on the spray plate 22 rotates and sprays, and then the oblique nozzle 23 sprays and cools the third adapter end 52, the first adapter end 54, the fourth adapter end 53 and the second adapter end 55 in turn, and when the oblique nozzle 23 sprays on the front outer wall of the fourth adapter end 53 and the second adapter end 55 adjacent to the first adapter end 54, the oblique nozzle 23 sprays and cools the fourth adapter end 53 and the second adapter end 55, and the sprayed cooling oil flows along the third adapter end 52, the first adapter end 54, the fourth adapter end 53 and the second adapter end 55 under the limiting shielding of the third adapter end 52, the first adapter end 54, the fourth adapter end 53 and the second adapter end 55, as shown in FIG. Figure 8 As shown, the flowing cooling oil at this time flows to the fifth adapter end 5 respectively, and then the limiting guidance of the third adapter end 52 and the first adapter end 54 and the fourth adapter end 53 and the second adapter end 55 is used to guide the cooling oil sprayed by the oblique nozzle 23 to act on the fifth adapter end 5, so as to achieve the cooling effect on the fifth adapter end 5. Similarly, when the oblique nozzle 23 passes over the second adapter end 55 and sprays on the first end group and the second end group of the next group, the cooling oil flowing between the fourth adapter end 53 and the second adapter end 55 of the first group and the third adapter end 52 and the first adapter end 54 of the second group will act on the sixth adapter end 51, so that the cooling oil is guided by the first end group and the second end group of multiple groups, so that multiple third end groups are all impacted and cooled by the cooling oil. Compared with the traditional stacking arrangement of the adapter ends, the staggered arrangement and splicing arrangement between the first end group, the second end group and the third end group can make the cooling oil sprayed by the oblique nozzle 23 absorb the heat of the adapter end more comprehensively, thereby improving the heat dissipation efficiency.

[0041] As another embodiment provided by the present invention, partition members 33 arranged in a circular array are fixedly mounted on the stator member 3, and the partition members 33 are respectively located on one side of the fifth adapter end 5 and the sixth adapter end 51 in the third end group, and the oil passage 32 is located between every two partition members 33.

[0042] Specifically, when the inclined nozzle 23 rotates and sprays, and sequentially sprays and cools the third adapter end 52 and the first adapter end 54 and the fourth adapter end 53 and the second adapter end 55 in the first end group and the second end group of the multiple groups, the sprayed and splashed cooling oil flows again along the third adapter end 52 and the first adapter end 54 and the fourth adapter end 53 and the second adapter end 55, and the flowing cooling oil at this time flows to the fifth adapter end 5 and the sixth adapter end 51 respectively, so as to achieve cooling of the third end group, and the cooling oil flowing along the fifth adapter end 5 and the sixth adapter end 51 at this time flows into the oil passage 32 under the limiting guidance of the multiple baffle members 33, and then the multiple baffle members 33 are used to achieve the effect of cooling oil drainage, so as to avoid the oil body flowing in the first oil chamber 12 being too turbulent, resulting in turbulence before the oil body flows into the oil passage 32, causing the problem of reduced loss in the oil passage 32.

[0043] As another embodiment provided by the present invention, the partition member 33 is respectively attached to the fifth adapter end 5 and the sixth adapter end 51 in the third end group, and the partition member 33 is located on the oil injection path of the multiple inclined nozzles 23.

[0044] Specifically, Figure 8 As shown, the plurality of baffle members 33 are respectively attached to the fifth adapter end 5 and the sixth adapter end 51, so the heat emitted by the fifth adapter end 5 and the sixth adapter end 51 can be transferred to the baffle member 33 for heat dissipation. When the oblique nozzle 23 rotates and sprays, the baffle member 33 is located on the oil spraying path of the plurality of oblique nozzles 23, as shown in FIG. Figure 6 As shown, at this time, the inclined nozzle 23 is directly sprayed onto the partition member 33 to cool the partition member 33. At the same time, the high-speed cooling oil sprayed from the inclined nozzle 23 acts on the partition member 33, and the partition member 33 guides the cooling oil to make the cooling oil flow to the oil passage 32 more quickly. At this time, the flow velocity in the oil passage 32 is increased, and part of the cooling oil located in the first oil chamber 12 is rectified to flow quickly into the oil passage 32 due to the increase in the flow velocity of the oil passage 32 at one end of the partition member 33, thereby achieving a rectification effect on the cooling oil in the first oil chamber 12.

[0045] By utilizing a plurality of partition members 33 , interference between ports of a plurality of oil passages 32 located in the first oil chamber 12 can be reduced, thereby making the flow of cooling oil more stable.

[0046] As another embodiment further provided by the present invention, the outer wall of the spray plate 22 opposite to the rotor member 26 is fixedly mounted with first blades 24 arranged in a circular array, and the fourth adapter end 53 is provided with a curved portion at one end of the fifth adapter end 5.

[0047] Specifically, Figure 7As shown, when the oblique nozzle 23 finishes spraying the partition member 33 and starts spraying on the fourth adapter end 53, the oblique nozzle 23 starts to spray on the curved surface portion of the fourth adapter end 53 located at one end of the fifth adapter end 5, and the sprayed cooling oil splashes on the curved surface portion and impacts the outer wall of the fifth adapter end 5 adjacent to the sixth adapter end 51, thereby improving the heat dissipation effect of the fifth adapter end 5. As the oblique nozzle 23 rotates and sprays, the cooling oil sprayed from the oblique nozzle 23 sweeps along the fourth adapter end 53 and the second adapter end 55 and the arc-shaped outer wall connected to the fourth adapter end 53 and the second adapter end 55, and the sprayed cooling oil sequentially sweeps and splashes along the back side of the third adapter end 52, as shown in FIG. Figure 8 As shown, at this time, part of the cooling oil will flow through the gap between the third adapter end 52 and the fifth adapter end 5, so that the fifth adapter end 5 can be in more comprehensive contact with the flowing cooling oil to dissipate heat.

[0048] Then, as the oblique nozzle 23 continues to rotate and spray, the oblique nozzle 23 begins to spray on the notch 43 on the inner probe rod 4, and the cooling oil sprayed by the oblique nozzle 23 splashes on the back of the first adapter end 54 under the shielding of the notch 43. Further, the oblique nozzle 23 continues to rotate and spray, and the oblique nozzle 23 begins to dock with the interface 41, so that the multiple drip holes 42 spray out cooling oil and dissipate heat to the stator part 3 and the rotor part 26 at the same time, and the cooling oil flowing in the inner probe rod 4 can absorb and dissipate the heat of the stator part 3, and the cooling oil flowing in the oil passage 32 further dissipates heat to the stator part 3, thereby improving the efficiency of the motor.

[0049] Furthermore, in the process that the rotor rod 2 drives the spray plate 22 to rotate so that the multiple oblique nozzles 23 rotate and spray, the first blade 24 rotates with the spray plate 22, thereby stirring the cooling oil in the first oil chamber 12, so that the cooling oil is pushed to the oil channel 32, thereby accelerating the flow of the cooling oil. At the same time, the pushed cooling oil can contact the top end surfaces of the fifth adapter end 5, the sixth adapter end 51, the third adapter end 52, the fourth adapter end 53, the first adapter end 54 and the second adapter end 55, thereby guiding the flow direction of the cooling oil and further accelerating the heat dissipation effect of the adapter end.

[0050] As an optimal embodiment further provided by the present invention, the outer wall of the spray plate 22 located on one side of the rotor component 26 is fixedly mounted with second blades 25 arranged in a circular array, and the stator component 3 is provided with winding grooves 31 arranged in a circular array, and a gap oil channel 34 is provided between every two adjacent winding grooves 31 at the end of the stator component 3.

[0051] Specifically, Fig.12As shown, when the inner layer flat wire winding, the middle layer flat wire winding and the outer layer flat wire winding are respectively arranged in the winding slots 31, a gap oil passage 34 is formed at the end of the stator component 3 between the inner layer flat wire winding, the middle layer flat wire winding and the outer layer flat wire winding in every two adjacent winding slots 31, that is, the inner layer flat wire winding, the middle layer flat wire winding and the outer layer flat wire winding in every two adjacent winding slots 31 form a gap oil passage 34 at the end of the stator component 3, and the gap oil passage 34 and every two partition components 33 are interconnected.

[0052] Therefore, when the oil pump pumps cooling oil into the oil inlet channel 21, the cooling oil is then sprayed out from the multiple oblique nozzles 23 along the oil inlet channel 21, and then as the rotor rod 2 rotates in the stator component 3, the rotor rod 2 drives the spray plate 22 to rotate, and the multiple oblique nozzles 23 sequentially pass over the first adapter end 54, the second adapter end 55 and the interface 41.

[0053] Furthermore, when the rotor rod 2 rotates, Fig.13 As shown, the first blade 24 rotates with the spray plate 22, thereby stirring part of the cooling oil in the first oil chamber 12 so that the cooling oil is pushed toward the oil channel 32, thereby accelerating the flow of the cooling oil. At the same time, the pushed cooling oil can contact the top end surfaces of the fifth adapter end 5, the sixth adapter end 51, the third adapter end 52, the fourth adapter end 53, the first adapter end 54 and the second adapter end 55, thereby guiding the flow direction of the cooling oil and further accelerating the heat dissipation effect of the adapter end.

[0054] Furthermore, the inclined nozzle 23 starts to spray on the front of the third adapter end 52 and the first adapter end 54 to perform preliminary heat dissipation on the third adapter end 52 and the first adapter end 54, and then the inclined nozzle 23 continues to rotate and spray so that the cooling oil sprayed by the inclined nozzle 23 is separated from the first adapter end 54 and starts to spray the partition member 33. Figure 6 As shown, part of the heat of the sixth adapter end 51 is absorbed by the partition member 33, and heat is dissipated under the spraying of the oblique nozzle 23. Then, as the oblique nozzle 23 continues to rotate and spray, the oblique nozzle 23 begins to spray on the curved surface portion of the fourth adapter end 53 located at one end of the fifth adapter end 5, and the sprayed cooling oil splashes on the curved surface portion and impacts the outer wall of the fifth adapter end 5 adjacent to the sixth adapter end 51, thereby improving the heat dissipation effect of the fifth adapter end 5. As the oblique nozzle 23 rotates and sprays, the cooling oil sprayed by the oblique nozzle 23 sweeps along the fourth adapter end 53 and the second adapter end 55 and the arc-shaped outer wall connected to the fourth adapter end 53 and the second adapter end 55, so as to impact and dissipate heat on the front of the fourth adapter end 53 and the second adapter end 55. After the sprayed cooling oil splashes on the fourth adapter end 53 and the second adapter end 55, it sweeps and impacts along the back side of the third adapter end 52 in sequence, as shown in FIG. Figure 8As shown, at this time, part of the cooling oil will flow through the gap between the third adapter end 52 and the fifth adapter end 5, so that the fifth adapter end 5 can be in more comprehensive contact with the flowing cooling oil to dissipate heat.

[0055] Then, as the oblique nozzle 23 continues to rotate and spray, the oblique nozzle 23 begins to spray on the notch 43 on the inner probe rod 4, and the cooling oil sprayed by the oblique nozzle 23 splashes on the back of the first adapter end 54 under the shielding of the notch 43. Further, the oblique nozzle 23 continues to rotate and spray, and the oblique nozzle 23 begins to dock with the interface 41, so that the multiple drip holes 42 spray out cooling oil and dissipate heat to the stator part 3 and the rotor part 26 at the same time, and the cooling oil flowing in the inner probe rod 4 can absorb and dissipate the heat of the stator part 3, and the cooling oil flowing in the oil passage 32 further dissipates heat to the stator part 3, thereby improving the efficiency of the motor.

[0056] Furthermore, the oil sprayed into the gap cavity 27 along the multiple drip holes 42 is squeezed and discharged into the first oil cavity 12. At this time, the second blade 25 is driven to rotate under the rotation of the rotor rod 2. As the second blade 25 rotates, the cooling oil discharged from the gap cavity 27 is moved by the second blade 25 and quickly flows to the gap oil channel 34. The cooling oil flowing along the gap oil channel 34 absorbs part of the heat of the inner flat wire winding, the middle flat wire winding and the outer flat wire winding, thereby further dissipating the heat of the inner flat wire winding, the middle flat wire winding and the outer flat wire winding. Then, the cooling oil flowing along the gap oil channel 34 flows into the oil channel 32 under the guidance of the partition member 33. Then, the cooling oil in the oil passage 32 flows into the second oil chamber 13, and the flowing cooling oil dissipates heat for the inner layer flat wire winding, the middle layer flat wire winding and the outer layer flat wire winding in the second oil chamber 13. Then, the cooling oil in the second oil chamber 13 is discharged along the oil outlet 11 and circulated through the oil pump to dissipate heat.

[0057] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-efficiency motor based on oil-to-electric conversion for commercial vehicles, comprising a stator component (3) and a rotor rod (2) rotating therein, and also comprising a housing (1) wrapped around the stator component (3), characterized in that: A first oil chamber (12) is provided between the casing (1) and one end of the stator component (3); The stator component (3) is provided with an inner flat wire winding, the inner flat wire winding comprises a first end group arranged in a circular array, the first end group comprises a first adapter end (54) and a second adapter end (55), an inner probe rod (4) arranged in a circular array and respectively located between the first adapter end (54) and the second adapter end (55) is fixedly mounted at the end of the stator component (3), a plurality of drip holes (42) provided on the inner probe rod (4) face the rotor component (26) fixedly mounted on the outer wall of the rotor rod (2), and an interface (41) connected to the plurality of drip holes (42) is provided on the inner probe rod (4); The spray plate (22) fixedly mounted on the outer wall of the rotor rod (2) moves in the first oil chamber (12), and the first adapter end (54), the second adapter end (55) and the interface (41) are respectively located on the oil spray paths of a plurality of inclined nozzles (23) opened on the side of the spray plate (22).

2. A high-efficiency motor based on oil-to-electric conversion for commercial vehicles according to claim 1, characterized in that: A second oil chamber (13) is provided between the casing (1) and the other end of the stator component (3), and a plurality of oil passages (32) are provided on the stator component (3) for interconnecting the first oil chamber (12) and the second oil chamber (13).

3. The high-efficiency motor based on oil-to-electric conversion for commercial vehicles according to claim 1 is characterized in that: A notch (43) is provided on the outer wall of one side of the inner probe rod (4), and the notch (43) is located on the oil injection path of the oblique nozzle (23).

4. The high-efficiency motor based on oil-to-electric conversion for commercial vehicles according to claim 1 is characterized in that: The invention also comprises a middle-layer flat wire winding, wherein the middle-layer flat wire winding comprises a second end group arranged in a circular array, wherein the second end group comprises a third transfer end (52) and a fourth transfer end (53), wherein the third transfer end (52) is attached to the first transfer end (54), and the fourth transfer end (53) is attached to the second transfer end (55), and the third transfer end (52) and the fourth transfer end (53) are respectively located on the oil injection paths of the plurality of inclined nozzles (23).

5. The high-efficiency motor based on oil-to-electric conversion for commercial vehicles according to claim 4 is characterized in that: The fourth adapter end (53) is connected to an outer wall of a front side of the second adapter end (55) in an arc shape, and the third adapter end (52) is connected to an outer wall of a front side of the first adapter end (54) in an arc shape.

6. The high-efficiency motor based on oil-to-electric conversion for commercial vehicles according to claim 4 is characterized in that: The invention also comprises an outer flat wire winding, wherein the outer flat wire winding comprises a third end group arranged in a circular array, wherein the third end group comprises a fifth transfer end (5) and a sixth transfer end (51), and the fifth transfer end (5) and the sixth transfer end (51) are arranged in an alternating manner with the third transfer end (52) and the fourth transfer end (53).

7. The high-efficiency motor based on oil-to-electric conversion for commercial vehicles according to claim 2 is characterized in that: The stator component (3) is fixedly mounted with partition components (33) arranged in a circular array, and the partition components (33) are respectively located on one side of the fifth adapter end (5) and the sixth adapter end (51) in the third end group, and the oil passage (32) is located between every two partition components (33).

8. The high-efficiency motor based on oil-to-electric conversion for commercial vehicles according to claim 7 is characterized in that: The partition member (33) is respectively attached to the fifth adapter end (5) and the sixth adapter end (51) in the third end group, and the partition member (33) is located on the oil injection path of the plurality of inclined nozzles (23).

9. The high-efficiency motor based on oil-to-electric conversion for commercial vehicles according to claim 6 is characterized in that: The outer wall of the spray plate (22) on one side opposite to the rotor member (26) is fixedly mounted with first blades (24) arranged in a circular array, and a curved surface portion is provided at one end of the fourth adapter end (53) located at the fifth adapter end (5).

10. A high-efficiency motor based on oil-to-electric conversion for commercial vehicles according to claim 9, characterized in that: The outer wall of the spray plate (22) located on one side of the rotor member (26) is fixedly mounted with second blades (25) arranged in a circular array, and the stator member (3) is provided with winding grooves (31) arranged in a circular array, and a gap oil channel (34) is provided between every two adjacent winding grooves (31) at the end of the stator member (3).

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