An oil-cooled stator structure for a new energy vehicle drive motor

Abstract

This invention provides a stator oil-cooling structure for a new energy vehicle drive motor, relating to the field of new energy vehicle drive motor technology. It includes: a connecting mounting part; an oil-cooling heat dissipation part installed at the outer front end of the connecting mounting part; a drive control part installed on the top of the connecting mounting part, the drive control part being used to rotate the oil-cooling heat dissipation part; a movable positioning part installed on the connecting mounting part, the movable positioning part being used to position the connecting mounting part; and two sets of anti-loosening limiting parts installed on the connecting mounting part, the two sets of anti-loosening limiting parts being used to ensure the stability of the connecting mounting part during use. When the circulating pump is working, the coolant between the two corresponding rectangular separators can be almost completely discharged, ensuring that the coolant in the motor housing can circulate fully. This solves the problem that the lack of a cooling oil separation structure in general leads to the inability to accurately control the suction position of the coolant during circulation.

Description

Technical Field

[0001] This invention belongs to the field of new energy vehicle drive motor technology, and more specifically, it relates to a stator oil-cooling structure for a new energy vehicle drive motor. Background Technology

[0002] The stator of the drive motor in new energy vehicles adopts oil cooling technology, mainly to cope with the heat dissipation challenge under high power density. The stator generates a lot of heat during operation, especially the winding and iron core. If the heat dissipation is insufficient, the temperature will be too high, affecting the motor performance and life. Oil cooling technology has become the first choice for high-end new energy vehicles to ensure that the motor operates stably under high temperature and high load and extend its service life.

[0003] The currently used oil-cooled stator structure for motors still has the following problems:

[0004] 1. Generally, the lack of a cooling oil separator structure makes it impossible to accurately control the cooling oil intake position during cooling oil circulation; and the fixed oil intake and discharge positions during cooling oil circulation result in insufficient cooling oil circulation, which can easily lead to different cooling oil temperatures at different locations.

[0005] 2. New energy vehicle drive motors are usually installed with bolts, which makes installation and disassembly inconvenient. Furthermore, the screws cannot be automatically stopped, causing them to loosen after prolonged use. Summary of the Invention

[0006] This disclosure relates to an oil-cooled stator structure for a new energy vehicle drive motor, which includes a connecting mounting part, an oil-cooling heat dissipation part, a drive control part, a movable positioning part, and an anti-loosening limiting part. When the circulation pump is working, the cooling oil between the two rectangular separators can be almost completely discharged, ensuring that the cooling oil in the motor housing can circulate fully. The two T-shaped limiting brackets limit the four connecting screws, preventing them from loosening. This solves the problems of inaccurate control of the cooling oil suction position and the easy loosening of the mounting screws.

[0007] This invention provides an oil-cooled structure for the stator of a drive motor in a new energy vehicle, used for cooling the motor stator; it includes: a connecting mounting part; an oil-cooling heat dissipation part is installed on the outer front end of the connecting mounting part; a drive control part is installed on the top of the connecting mounting part, the drive control part being used to rotate the oil-cooling heat dissipation part; a movable positioning part is installed on the connecting mounting part, the movable positioning part being used to position the connecting mounting part; two sets of anti-loosening limiting parts are installed on the connecting mounting part, the two sets of anti-loosening limiting parts being used to ensure the stability of the connecting mounting part during use; the connecting mounting part includes: a connecting plate, a mounting frame, and a motor housing; mounting holes are opened at the corners of the connecting plate; the mounting frame is slidably installed on the top of the connecting plate; the motor housing is fixedly installed on the mounting frame.

[0008] In at least some embodiments, the connecting mounting part further includes: a rectangular partition strip, a limiting retaining ring, and connecting screws; an oil cooling groove is formed on the outer wall of the motor housing; a total of one ring of rectangular partition strips is provided, and the ring of rectangular partition strips is fixedly installed inside the motor housing, and oil cooling round holes are respectively provided on the ring of rectangular partition strips; the limiting retaining ring is fixedly installed on the outer front end of the motor housing; a total of four connecting screws are provided, and the four connecting screws are inserted into four mounting holes on the connecting plate.

[0009] In at least some embodiments, the oil-cooled heat dissipation unit includes: a sealing ring, a circular rack, and a mounting bracket; the sealing ring is rotatably mounted outside the motor housing, and the sealing ring is located between the mounting frame and the limiting ring; the circular rack is fixedly mounted outside the sealing ring; and the mounting bracket is fixedly mounted on the right side of the sealing ring.

[0010] In at least some embodiments, the oil-cooled heat dissipation unit further includes: a circulating pump, arc-shaped oil cooling pipes, and spiral heat sinks; the circulating pump is fixedly mounted on a mounting bracket; there are two arc-shaped oil cooling pipes, and the outer ends of the two arc-shaped oil cooling pipes are fixedly mounted on a sealing ring; the inner ends of the two arc-shaped oil cooling pipes are fixedly mounted on the circulating pump, and the two arc-shaped oil cooling pipes and a ring of oil cooling slots are located on the same plane; there are two spiral heat sinks, and the two spiral heat sinks are fixedly mounted on the outside of the two arc-shaped oil cooling pipes.

[0011] In at least some embodiments, the drive control unit includes: a U-shaped frame, a motor, and a drive gear; the U-shaped frame is fixedly mounted on the top of the mounting frame; the motor is fixedly mounted on the U-shaped frame; the drive gear is fixedly mounted on the output shaft of the motor, and the drive gear is also meshed with a circular rack.

[0012] In at least some embodiments, the movable positioning part includes: a V-shaped positioning seat, a movable positioning pin, and a conical extrusion plate; there are two V-shaped positioning seats, and the two V-shaped positioning seats are fixedly installed on the mounting frame; there are two movable positioning pins, and the two movable positioning pins are slidably installed on the two V-shaped positioning seats and the mounting frame, and the bottom ends of the two movable positioning pins are inserted into the connecting plate; there are two conical extrusion plates, and the two conical extrusion plates are fixedly installed on the outside of the two movable positioning pins.

[0013] In at least some embodiments, the movable positioning part further includes: a return spring A, a lithium battery, and an alarm; there are two return springs A, which are sleeved on the outside of the two movable positioning pins, and the two return springs A are located between the two V-shaped positioning seats and the two conical extrusion plates; the lithium battery is fixedly installed on the left side of the mounting frame; the alarm is fixedly installed on the left side of the mounting frame, and the lithium battery is electrically connected to the alarm.

[0014] In at least some embodiments, the movable positioning part further includes: a rectangular mounting rod and a switch; the rectangular mounting rod is fixedly mounted on the mounting frame; the switch is fixedly mounted on the rectangular mounting rod and is electrically connected to the lithium battery and the alarm; when the bottom end of the left movable positioning pin is separated from the connecting plate, the top of the left movable positioning pin contacts the bottom of the rectangular mounting rod.

[0015] In at least some embodiments, the anti-loosening limiting part includes: a rectangular mounting block, a circular guide shaft, and a T-shaped limiting bracket; the rectangular mounting block is fixedly mounted on the mounting frame; the circular guide shaft is slidably mounted on the rectangular mounting block; the T-shaped limiting bracket is fixedly mounted on the outside of the circular guide shaft, and the front and rear sides of the T-shaped limiting bracket are in contact with two corresponding connecting screws.

[0016] In at least some embodiments, the anti-loosening limiting part further includes: a limiting retaining ring and a return spring B; the limiting retaining ring is fixedly installed on the top of the rectangular mounting block; the return spring B is sleeved on the outside of the circular guide shaft, and the return spring B is located on the inside of the rectangular mounting block.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When the circulating pump is working, the cooling oil in the motor housing circulates, which cools the motor stator. The two spiral heat sinks provide good heat dissipation for the cooling oil in the two arc-shaped oil cooling pipes, ensuring the cooling effect of the motor stator.

[0019] In addition, when the circulating pump is working, the cooling oil between the two rectangular separators can be almost completely discharged, ensuring that the cooling oil in the motor housing can circulate fully; when the motor is working, the sealing ring rotates under the action of the circular rack and drive gear, which facilitates the intake of cooling oil from different positions in the motor housing, making the temperature of the cooling oil in the motor housing more uniform.

[0020] 2. The two movable positioning pins of this invention serve to position the mounting frame, making the connection between the mounting frame and the connecting plate more stable; the two movable positioning pins can only move when pulled, preventing them from falling off the connecting plate.

[0021] In addition, when the bottom ends of the two movable positioning pins are not inserted into the connecting plate, the top of the left movable positioning pin contacts the bottom of the rectangular mounting rod, realizing the automatic pressing of the switch. At this time, the alarm works, which makes it easy to prompt the staff to fine-tune the position of the mounting frame and ensure that the mounting frame can be installed in the accurate position; the setting of the two T-shaped limit brackets plays a limiting role on the four connecting screws, preventing the four connecting screws from becoming loose.

[0022] In addition, when the staff pulls the two movable positioning pins upward, the two T-shaped limit brackets automatically move inward under the action of the two return springs B, so as to avoid the two T-shaped limit brackets affecting the installation and disassembly of the mounting frame; when the two movable positioning pins are inserted into the correct position, the two conical extrusion plates can squeeze the two T-shaped limit brackets to move outward automatically, realizing the automatic limit of the four connecting screws. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0024] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0025] In the attached diagram:

[0026] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown;

[0027] Figure 2 A schematic diagram of the transverse center section structure of the connecting mounting part of the present invention is shown;

[0028] Figure 3 A schematic diagram of the longitudinal center section structure of the connecting mounting part of the present invention is shown;

[0029] Figure 4 The present invention is shown. Figure 1 A schematic diagram of the bottom view structure;

[0030] Figure 5A schematic diagram of the structure of the oil-cooled heat dissipation section of the present invention is shown;

[0031] Figure 6 The present invention is shown. Figure 1 A magnified schematic diagram of a portion of region A in the middle;

[0032] Figure 7 A partial structural schematic diagram of the movable positioning part of the present invention is shown;

[0033] Figure 8 The present invention is shown. Figure 1 A schematic diagram of the structure from the left-side main viewpoint;

[0034] Figure 9 The present invention is shown. Figure 8 A magnified schematic diagram of a portion of region B in the middle;

[0035] Figure 10 The present invention is shown. Figure 1 A magnified schematic diagram of the structure of region C in the middle.

[0036] List of reference numerals in the attached diagram:

[0037] 100. Connecting mounting part; 101. Connecting plate; 102. Mounting frame; 103. Motor housing; 1031. Oil cooling slot; 104. Rectangular partition bar; 1041. Oil cooling round hole; 105. Limiting ring; 106. Connecting screw;

[0038] 200. Motor stator;

[0039] 300. Oil-cooled heat dissipation unit; 301. Sealing ring; 302. Circular rack; 303. Mounting bracket; 304. Circulating pump; 305. Arc-shaped oil cooling pipe; 306. Spiral heat dissipation fins;

[0040] 400. Drive control unit; 401. U-shaped frame; 402. Motor; 403. Drive gear;

[0041] 500. Movable positioning part; 501. V-shaped positioning seat; 502. Movable positioning pin; 503. Conical extrusion plate; 504. Return spring A; 505. Lithium battery; 506. Alarm; 507. Rectangular mounting rod; 508. Switch;

[0042] 600. Anti-loosening limiting part; 601. Rectangular mounting block; 602. Circular guide shaft; 603. T-shaped limiting bracket; 604. Limiting retaining ring; 605. Return spring B. Detailed Implementation

[0043] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0044] Example: Please refer to Figures 1 to 10 As shown: This invention provides an oil-cooled structure for the stator of a new energy vehicle drive motor, used to cool the motor stator 200; it includes: a connecting mounting part 100; an oil-cooling heat dissipation part 300 is installed at the outer front end of the connecting mounting part 100; a drive control part 400 is installed on the top of the connecting mounting part 100, the drive control part 400 is used to rotate the oil-cooling heat dissipation part 300; a movable positioning part 500 is installed on the connecting mounting part 100, the movable positioning part 500 is used to position the connecting mounting part 100; two sets of anti-loosening limiting parts 600 are installed on the connecting mounting part 100, the two sets of anti-loosening limiting parts 600 are used to ensure the stability of the connecting mounting part 100 during use.

[0045] In this embodiment of the disclosure, such as Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the connection mounting part 100 includes: a connecting plate 101, a mounting frame 102, and a motor housing 103; mounting holes are provided at the corners of the connecting plate 101; the mounting frame 102 is slidably mounted on the top of the connecting plate 101; the motor housing 103 is fixedly mounted on the mounting frame 102; the connection mounting part 100 also includes: a rectangular partition strip 104, a limiting retaining ring 105, and connecting screws 106; an oil cooling groove hole 1031 is provided on the outer wall of the motor housing 103; a total of one ring of rectangular partition strip 104 is provided, and the ring of rectangular partition strip 104 is fixedly mounted inside the motor housing 103, and oil cooling round holes 1041 are respectively provided on the ring of rectangular partition strip 104; the limiting retaining ring 105 is fixedly mounted on the outer front end of the motor housing 103; a total of four connecting screws 106 are provided, and the four connecting screws 106 are inserted into the four mounting holes on the connecting plate 101;

[0046] The oil-cooled heat dissipation unit 300 includes: a sealing ring 301, a circular rack 302, and a mounting bracket 303; the sealing ring 301 is rotatably mounted on the outside of the motor housing 103, and the sealing ring 301 is located between the mounting frame 102 and the limiting ring 105; the circular rack 302 is fixedly mounted on the outside of the sealing ring 301; the mounting bracket 303 is fixedly mounted on the right side of the sealing ring 301; the oil-cooled heat dissipation unit 300 also includes: a circulating pump 304, an arc-shaped oil cooling pipe 305, and spiral heat sink fins. 306; The circulating pump 304 is fixedly mounted on the mounting bracket 303; Two arc-shaped oil cooling pipes 305 are provided, and the outer ends of the two arc-shaped oil cooling pipes 305 are fixedly mounted on the sealing ring 301; The inner ends of the two arc-shaped oil cooling pipes 305 are fixedly mounted on the circulating pump 304, and the two arc-shaped oil cooling pipes 305 and a ring of oil cooling slots 1031 are located on the same plane; Two spiral heat sinks 306 are provided, and the two spiral heat sinks 306 are fixedly mounted on the outside of the two arc-shaped oil cooling pipes 305;

[0047] The drive control unit 400 includes: a U-shaped frame 401, a motor 402, and a drive gear 403; the U-shaped frame 401 is fixedly mounted on the top of the mounting frame 102; the motor 402 is fixedly mounted on the U-shaped frame 401; the drive gear 403 is fixedly mounted on the output shaft of the motor 402, and the drive gear 403 is also meshed with a circular rack 302.

[0048] Its specific function is as follows: Since the circulating pump 304 is fixedly installed on the mounting bracket 303, and the outer ends of the two arc-shaped oil cooling pipes 305 are fixedly installed on the sealing ring 301, and the inner ends of the two arc-shaped oil cooling pipes 305 are fixedly installed on the circulating pump 304, when the circulating pump 304 is working, the cooling oil in the motor housing 103 circulates, which has a cooling effect on the motor stator 200; and since the two spiral heat sinks 306 are fixedly installed on the outside of the two arc-shaped oil cooling pipes 305, they have a good heat dissipation effect on the cooling oil in the two arc-shaped oil cooling pipes 305, thus ensuring the cooling effect of the motor stator 200.

[0049] Furthermore, since a rectangular partition bar 104 is fixedly installed inside the motor housing 103, and oil-cooling circular holes 1041 are respectively opened on the rectangular partition bar 104, and an oil-cooling groove hole 1031 is opened on the outer wall of the motor housing 103, when the circulating pump 304 is working, the cooling oil between the two corresponding rectangular partition bars 104 can be basically completely discharged, ensuring that the cooling oil in the motor housing 103 can circulate fully; and since the circular rack 302 is fixedly installed outside the sealing ring 301, and the drive gear 403 is fixedly installed on the output shaft of the motor 402, and the drive gear 403 is also meshed with the circular rack 302, when the motor 402 is working, the sealing ring 301 rotates under the action of the circular rack 302 and the drive gear 403, which facilitates the intake of cooling oil from different positions in the motor housing 103, making the cooling oil temperature in the motor housing 103 more uniform.

[0050] In this embodiment of the disclosure, such as Figure 1 , Figure 7 , Figure 9 and Figure 10 As shown, the movable positioning part 500 includes: a V-shaped positioning seat 501, a movable positioning pin 502, and a conical extrusion plate 503; two V-shaped positioning seats 501 are provided, and the two V-shaped positioning seats 501 are fixedly installed on the mounting frame 102; two movable positioning pins 502 are provided, and the two movable positioning pins 502 are slidably installed on the two V-shaped positioning seats 501 and the mounting frame 102, and the bottom ends of the two movable positioning pins 502 are inserted into the connecting plate 101; two conical extrusion plates 503 are provided, and the two conical extrusion plates 503 are fixedly installed on the outside of the two movable positioning pins 502; the movable positioning part 500 also includes: a return spring A504, a lithium battery 505, and an alarm 506; two return springs A504 are provided, and the two return springs A504 are sleeved on Outside the two movable positioning pins 502, and two return springs A504 are located between the two V-shaped positioning seats 501 and the two conical extrusion discs 503; the lithium battery 505 is fixedly installed on the left side of the mounting frame 102; the alarm 506 is fixedly installed on the left side of the mounting frame 102, and the lithium battery 505 is electrically connected to the alarm 506; the movable positioning part 500 also includes: a rectangular mounting rod 507 and a switch 508; the rectangular mounting rod 507 is fixedly installed on the mounting frame 102; the switch 508 is fixedly installed on the rectangular mounting rod 507, and the switch 508 is electrically connected to the lithium battery 505 and the alarm 506; when the bottom end of the left movable positioning pin 502 is separated from the connecting plate 101, the top of the left movable positioning pin 502 contacts the bottom of the rectangular mounting rod 507;

[0051] The anti-loosening limiting part 600 includes: a rectangular mounting block 601, a circular guide shaft 602, and a T-shaped limiting bracket 603; the rectangular mounting block 601 is fixedly mounted on the mounting frame 102; the circular guide shaft 602 is slidably mounted on the rectangular mounting block 601; the T-shaped limiting bracket 603 is fixedly mounted on the outside of the circular guide shaft 602, and the front and rear sides of the T-shaped limiting bracket 603 are in contact with the corresponding two connecting screws 106; the anti-loosening limiting part 600 also includes: a limiting retaining ring 604 and a return spring B605; the limiting retaining ring 604 is fixedly mounted on the top of the rectangular mounting block 601; the return spring B605 is sleeved on the outside of the circular guide shaft 602, and the return spring B605 is located on the inside of the rectangular mounting block 601;

[0052] Its specific functions are as follows: Since the two V-shaped positioning seats 501 are fixedly installed on the mounting frame 102, and the two movable positioning pins 502 are slidably installed on the two V-shaped positioning seats 501 and the mounting frame 102, and the bottom ends of the two movable positioning pins 502 are inserted into the connecting plate 101, they play a positioning role for the mounting frame 102, making the mounting frame 102 more stable after being connected to the connecting plate 101; since the two conical extrusion plates 503 are fixedly installed on the outside of the two movable positioning pins 502, and the two return springs A504 are sleeved on the outside of the two movable positioning pins 502, and the two return springs A504 are located between the two V-shaped positioning seats 501 and the two conical extrusion plates 503, the two movable positioning pins 502 can only move after being pulled, preventing the two movable positioning pins 502 from falling off the connecting plate 101;

[0053] Furthermore, since the lithium battery 505 is electrically connected to the alarm 506, and the switch 508 is fixedly installed on the rectangular mounting rod 507, and the switch 508 is electrically connected to the lithium battery 505 and the alarm 506, when the bottom ends of the two movable positioning pins 502 are not inserted into the connecting plate 101, the top of the left movable positioning pin 502 contacts the bottom of the rectangular mounting rod 507, realizing the automatic pressing of the switch 508. At this time, the alarm 506 works, which is convenient for prompting the staff to fine-tune the position of the mounting frame 102 to ensure that the mounting frame 102 can be installed in the accurate position. Also, since the two T-shaped limit brackets 603 are fixedly installed on the outside of the two circular guide shafts 602, and the front and rear sides of the two T-shaped limit brackets 603 are in contact with the four connecting screws 106, they play a limiting role on the four connecting screws 106, preventing the four connecting screws 106 from loosening.

[0054] Furthermore, since the two circular guide shafts 602 are slidably mounted on the two rectangular mounting blocks 601, and the two return springs B605 are sleeved on the outside of the two circular guide shafts 602 and located inside the two rectangular mounting blocks 601, when the operator pulls the two movable positioning pins 502 upwards, the two T-shaped limit brackets 603 automatically move inwards under the action of the two return springs B605, thus preventing the two T-shaped limit brackets 603 from affecting the installation and disassembly of the mounting frame 102; and since the elastic force of the two return springs A504 is much greater than that of the two return springs B605, when the two movable positioning pins 502 are inserted into the accurate position, the two conical extrusion discs 503 can extrude the two T-shaped limit brackets 603 to automatically move outwards, thus achieving automatic limiting of the four connecting screws 106;

[0055] The threads on the four connecting screws 106 need to be machined with high precision to ensure that the inner sides of the four connecting screws 106 are parallel when they are tightened, so that the two T-shaped limit brackets 603 can be accurately inserted.

[0056] The specific usage and function of this embodiment are as follows:

[0057] When using this invention, the operator first installs the remaining parts of the new energy vehicle drive motor onto the motor housing 103, and then connects the connecting plate 101 to the new energy vehicle using four connecting screws 106. When the new energy vehicle is in use, the circulation pump 304 and the motor 402 automatically operate. When the circulation pump 304 operates, the cooling oil in the motor housing 103 circulates, which cools the motor stator 200. The two spiral heat sinks 306 provide good heat dissipation for the cooling oil in the two arc-shaped oil cooling pipes 305, ensuring the cooling effect of the motor stator 200. When the circulation pump 304 operates, the cooling oil between the two rectangular separators 104 is almost completely discharged, ensuring that the cooling oil in the motor housing 103 can circulate fully. When the motor 402 operates, the sealing ring 301 rotates under the action of the circular rack 302 and the drive gear 403, which facilitates the intake of cooling oil from different positions in the motor housing 103, making the temperature of the cooling oil in the motor housing 103 more uniform.

[0058] The two movable positioning pins 502 serve to position the mounting frame 102, making the connection between the mounting frame 102 and the connecting plate 101 more stable. The two movable positioning pins 502 can only move when pulled, preventing them from detaching from the connecting plate 101. When the bottom ends of the two movable positioning pins 502 are not inserted into the connecting plate 101, the top of the left movable positioning pin 502 contacts the bottom of the rectangular mounting rod 507, automatically pressing the switch 508. At this time, the alarm 506 activates, prompting personnel to fine-tune the position of the mounting frame 102 to ensure its stability. The 102 can be installed in the accurate position; the two T-shaped limit brackets 603 limit the four connecting screws 106, preventing them from loosening; when the operator pulls the two movable positioning pins 502 upwards, the two T-shaped limit brackets 603 automatically move inwards under the action of the two return springs B605, preventing the two T-shaped limit brackets 603 from affecting the installation and disassembly of the mounting frame 102; when the two movable positioning pins 502 are inserted in the accurate position, the two conical extrusion discs 503 can extrude the two T-shaped limit brackets 603 to automatically move outwards, realizing the automatic limiting of the four connecting screws 106.

[0059] The following points should be noted in this article:

[0060] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0061] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0062] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A stator oil-cooling structure for a new energy vehicle drive motor, used for cooling the motor stator (200); comprising: A connecting mounting part (100) is characterized in that an oil-cooled heat dissipation part (300) is installed at the outer front end of the connecting mounting part (100); a drive control part (400) is installed on the top of the connecting mounting part (100), the drive control part (400) being used to rotate the oil-cooled heat dissipation part (300); a movable positioning part (500) is installed on the connecting mounting part (100), the movable positioning part (500) being used to position the connecting mounting part (100); and two sets of anti-loosening devices are installed on the connecting mounting part (100). The limiting part (600) and the two sets of the anti-loosening limiting parts (600) are used to ensure the stability of the connecting mounting part (100) during use; the connecting mounting part (100) includes: a connecting plate (101), a mounting frame (102), a motor housing (103) and a limiting retaining ring (105); the connecting plate (101) has a mounting hole at the corner; the mounting frame (102) is slidably mounted on the top of the connecting plate (101); the motor housing (103) is fixedly mounted on the mounting frame (102); The oil cooling heat dissipation unit (300) includes: a sealing ring (301), a circular rack (302), and a mounting bracket (303); the sealing ring (301) is rotatably mounted on the outside of the motor housing (103), and the sealing ring (301) is located between the mounting frame (102) and the limiting retaining ring (105); the circular rack (302) is fixedly mounted on the outside of the sealing ring (301); the mounting bracket (303) is fixedly mounted on the right side of the sealing ring (301); the oil cooling heat dissipation unit (300) also includes: a circulating pump (304), an arc-shaped oil cooling pipe (305), and a screw... Spiral heat sink (306); the circulating pump (304) is fixedly mounted on the mounting bracket (303); there are two arc-shaped oil cooling pipes (305), and the outer ends of the two arc-shaped oil cooling pipes (305) are fixedly mounted on the sealing ring (301); the inner ends of the two arc-shaped oil cooling pipes (305) are fixedly mounted on the circulating pump (304), and the two arc-shaped oil cooling pipes (305) and a ring of oil cooling slots (1031) are located on the same plane; there are two spiral heat sinks (306), and the two spiral heat sinks (306) are fixedly mounted on the outside of the two arc-shaped oil cooling pipes (305).

2. The stator oil-cooling structure for a new energy vehicle drive motor according to claim 1, characterized in that, The connecting mounting part (100) further includes: a rectangular partition strip (104) and connecting screws (106); an oil cooling groove (1031) is formed on the outer wall of the motor housing (103); the rectangular partition strip (104) is provided in a ring, and the ring of rectangular partition strip (104) is fixedly installed inside the motor housing (103), and oil cooling round holes (1041) are respectively provided on the ring of rectangular partition strip (104); the limiting retaining ring (105) is fixedly installed on the outer front end of the motor housing (103); there are four connecting screws (106), and the four connecting screws (106) are inserted into the four mounting holes on the connecting plate (101).

3. The stator oil-cooling structure for a new energy vehicle drive motor according to claim 1, characterized in that, The drive control unit (400) includes: a U-shaped frame (401), a motor (402), and a drive gear (403); the U-shaped frame (401) is fixedly installed on the top of the mounting frame (102); the motor (402) is fixedly installed on the U-shaped frame (401); the drive gear (403) is fixedly installed on the output shaft of the motor (402), and the drive gear (403) is also meshed with a circular rack (302).

4. The stator oil-cooling structure for a new energy vehicle drive motor according to claim 1, characterized in that, The movable positioning part (500) includes: a V-shaped positioning seat (501), a movable positioning pin (502), and a conical extrusion plate (503); there are two V-shaped positioning seats (501), and the two V-shaped positioning seats (501) are fixedly installed on the mounting frame (102); there are two movable positioning pins (502), and the two movable positioning pins (502) are slidably installed on the two V-shaped positioning seats (501) and the mounting frame (102), and the bottom ends of the two movable positioning pins (502) are inserted into the connecting plate (101); there are two conical extrusion plates (503), and the two conical extrusion plates (503) are fixedly installed on the outside of the two movable positioning pins (502).

5. The stator oil-cooling structure for a new energy vehicle drive motor according to claim 4, characterized in that, The movable positioning part (500) further includes: a return spring A (504), a lithium battery (505), and an alarm (506); there are two return springs A (504), and the two return springs A (504) are sleeved on the outside of the two movable positioning pins (502), and the two return springs A (504) are located between the two V-shaped positioning seats (501) and the two conical extrusion plates (503); the lithium battery (505) is fixedly installed on the left side of the mounting frame (102); the alarm (506) is fixedly installed on the left side of the mounting frame (102), and the lithium battery (505) is electrically connected to the alarm (506).

6. The stator oil-cooling structure for a new energy vehicle drive motor according to claim 5, characterized in that, The movable positioning part (500) further includes: a rectangular mounting rod (507) and a switch (508); the rectangular mounting rod (507) is fixedly mounted on the mounting frame (102); the switch (508) is fixedly mounted on the rectangular mounting rod (507), and the switch (508) is electrically connected to the lithium battery (505) and the alarm (506); when the bottom end of the left movable positioning pin (502) is separated from the connecting plate (101), the top of the left movable positioning pin (502) contacts the bottom of the rectangular mounting rod (507).

7. The stator oil-cooling structure for a new energy vehicle drive motor according to claim 2, characterized in that, The anti-loosening limiting part (600) includes: a rectangular mounting block (601), a circular guide shaft (602), and a T-shaped limiting bracket (603); the rectangular mounting block (601) is fixedly mounted on the mounting frame (102); the circular guide shaft (602) is slidably mounted on the rectangular mounting block (601); the T-shaped limiting bracket (603) is fixedly mounted on the outside of the circular guide shaft (602), and the front and rear sides of the T-shaped limiting bracket (603) are in contact with the corresponding two connecting screws (106).

8. The stator oil-cooling structure for a new energy vehicle drive motor according to claim 7, characterized in that, The anti-loosening limiting part (600) further includes: a limiting retaining ring (604) and a return spring B (605); the limiting retaining ring (604) is fixedly installed on the top of the rectangular mounting block (601); the return spring B (605) is sleeved on the outside of the circular guide shaft (602), and the return spring B (605) is located on the inside of the rectangular mounting block (601).

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