Driving motor deep groove ball bearing for new energy automobile

Abstract

The invention discloses a driving motor deep groove ball bearing for a new energy automobile, and relates to the technical field of motor bearings, the driving motor deep groove ball bearing comprises a bearing outer ring, a bearing inner ring and a rolling ball, the rolling ball is installed between the bearing outer ring and the bearing inner ring, and a self-lubricating assembly is arranged on the surface of the bearing outer ring; the self-lubricating assembly comprises a limiting mounting groove formed in the surface of the outer ring of the bearing, and the self-lubricating assembly is arranged on the surface of the outer ring of the deep groove ball bearing, so that in the using process of the bearing, when the rolling balls do circular motion between the inner ring and the outer ring of the bearing, the rolling balls repeatedly push the linkage plate upwards, and the linkage plate is driven to rotate; and then the linkage plate drives the movable rod to move upwards, and then the liquid pushing plate is driven to extrude lubricating oil in the oil liquid box upwards, so that the oil liquid is sprayed to the inner ring of the bearing and the surface of the rolling ball through the liquid guide pipes on the two sides, and the self-lubricating effect on the rolling ball is achieved. The automobile driving motor has the effects that automatic lubrication is achieved when the automobile driving motor works, and the working stability of the driving motor bearing is improved.

Description

Technical Field

[0001] The present application relates to the technical field of motor bearings, and in particular to deep groove ball bearings for drive motors used in new energy vehicles. Background Art

[0002] In the field of new energy vehicles, the performance of the drive motor is directly related to the vehicle's power output and operating efficiency. Deep groove ball bearings, as key components in the drive motor, play an important role in supporting the rotating shaft, reducing friction, and transmitting loads. However, in the actual operation of new energy vehicles, traditional deep groove ball bearings suffer from insufficient lubrication. Due to the high speed and complex operating conditions of the drive motor, friction and wear between the balls and the inner and outer rings of the bearing increase, shortening the bearing life and affecting the overall performance and reliability of the drive motor.

[0003] Currently, most deep groove ball bearings on the market rely on manual, periodic lubrication of oil or grease. This method is not only cumbersome but also difficult to ensure timely and uniform lubrication. Furthermore, while some bearings incorporate lubrication systems, these systems are often complex and costly, and are prone to blockages and leaks in practice, compromising lubrication effectiveness.

[0004] Therefore, there is an urgent need for a deep groove ball bearing with a simple structure, good lubrication effect, and the ability to automatically adapt to the working conditions of the new energy vehicle drive motor. Summary of the Invention

[0005] In order to improve the automatic lubrication of bearing balls, increase the stability and service life of bearings, and thereby enhance the overall performance of new energy vehicle drive motors, the present application provides a deep groove ball bearing for a new energy vehicle drive motor with a self-lubricating component.

[0006] The present application provides a deep groove ball bearing with a self-lubricating component for a new energy vehicle drive motor, which adopts the following technical solutions: A deep groove ball bearing for a drive motor of a new energy vehicle comprises an outer ring, an inner ring and a ball. The ball is mounted between the outer ring and the inner ring, and a self-lubricating component is provided on the surface of the outer ring. The self-lubricating component includes a limit mounting groove provided on the surface of the outer ring of the bearing, an oil box is fixedly provided inside the limit mounting groove, a push plate is provided inside the oil box, a movable rod is fixedly connected to the lower surface of the push plate, the bottom end of the movable rod extends to the outside of the oil box and is fixedly connected to a linkage plate, a through hole is provided on the inner top of the outer ring of the bearing, the position of the through hole corresponds to the linkage plate, a liquid guide tube is fixedly embedded on both sides of the left and right sides of the oil box, the liquid guide tube extends downwardly to the inside of the outer ring of the bearing away from the end of the oil box, and the output end of the liquid guide tube corresponds to the position of the ball.

[0007] By adopting the above technical solution, a limit mounting groove is set on the outer ring of the bearing and an oil box is installed, effectively integrating the lubrication system and providing continuous lubrication support for the bearing operation. Through the linkage structure of the push plate and the movable rod, the oil in the oil box can be triggered to be transmitted to the liquid guide tube according to the operating status of the bearing, achieving on-demand lubrication and avoiding the problems of over-lubrication or under-lubrication; the liquid guide tube enables the lubricating oil to be accurately diverted to the area where the ball is located. The lubrication effect directly acts on the friction area, reducing the friction coefficient, slowing rolling wear, and improving the operating efficiency of the bearing. The installation direction of the liquid guide tube extends from the oil box to the inside of the bearing, ensuring the directionality and flow of the lubricating oil. It is suitable for the installation requirements of the drive motor in various postures. The linkage plate is linked with the external motion structure through the through hole, generating displacement during vehicle operation or motor operation, pushing the push plate to squeeze the oil, thereby realizing passive automatic lubrication supply, effectively improving the intelligence level and maintenance convenience of the system.

[0008] Optionally, two extension plates are fixedly connected to the surface of the linkage plate, two limit guide rods are fixedly connected between the lower surface of the oil box and the inner bottom wall of the limit mounting groove, and a sliding through hole matching the limit guide rod is provided on the surface of the extension plate, and the extension plate is slidably connected to the surface of the limit guide rod through the sliding through hole.

[0009] By adopting the above technical solution, two extension plates are arranged on the surface of the linkage plate, and two limit guide rods are arranged between the bottom of the oil box and the limit mounting groove. The extension plates are slidably connected to the limit guide rods through the sliding through holes. This structure realizes the stable guiding function of the liquid pushing mechanism of the self-lubricating component during the operation of the bearing. The limit guide rod provides linear guiding restriction for the up and down movement of the linkage plate to prevent it from offsetting, getting stuck or tilting when squeezing the oil, thereby ensuring that the liquid pushing plate always maintains a stable force state, effectively improving the uniformity of oil transmission and the working reliability of the lubrication system. The guide structure also has a certain buffering effect, which helps to reduce the impact of impact loads on the internal structure of the self-lubricating component, extend its service life, and improve the overall operating stability and lubrication efficiency of the bearing.

[0010] Optionally, a compression spring is sleeved on the surface of the limiting guide rod, the bottom end of the compression spring is fixedly connected to the upper surface of the linkage plate, and the top end of the compression spring is fixedly connected to the lower surface of the oil box.

[0011] By adopting the above technical solution, a compression spring is sleeved on the surface of the limit guide rod, and one end of the compression spring is fixedly connected to the linkage plate and the other end is fixedly connected to the lower surface of the oil box. This structure realizes the elastic reset function of the liquid pushing mechanism. The compression spring is compressed when the linkage plate moves downward under external force. When the external force is released, it can quickly return to its original state and push the linkage plate back to its position, thereby realizing the reciprocating motion of the liquid pushing plate, effectively improving the continuity and stability of oil delivery, buffering external force impact, and protecting the internal structure of the lubrication system from damage.

[0012] Optionally, a one-way drain valve is fixedly provided on the surface of the liquid guide tube, an air intake pipe is fixedly embedded on the surface of the oil box, and a one-way air intake valve is fixedly provided on the surface of the air intake pipe.

[0013] By adopting the above technical solution, a one-way drain valve is arranged on the surface of the liquid guide tube, and an air intake pipe with a one-way air intake valve is embedded on the surface of the oil box, thereby realizing a one-way control function of the lubricating oil during the transmission process. The one-way drain valve ensures that the lubricating oil can only flow out along the liquid guide tube toward the rolling ball, preventing oil backflow causing waste or uneven lubrication; and the one-way air intake valve automatically inhales air when the oil is squeezed out, maintaining the air pressure balance inside the oil box, avoiding the formation of negative pressure that affects the liquid discharge efficiency, thereby improving the stability and response speed of the lubrication system.

[0014] Optionally, a liquid filling hole is provided on the upper surface of the oil box, and a sealing plug is threadedly connected to the inner wall of the liquid filling hole. A cover plate is provided on the top of the oil box, the size of the cover plate matches the limit mounting groove, and a strip plug is fixedly connected to the lower surface of the cover plate, and the strip plug is inserted and installed in the gap between the oil box and the limit mounting groove.

[0015] By adopting the above technical solution, the lubricating oil can be easily replenished and reliably sealed. The filling hole is convenient for regularly adding lubricating oil to the oil box, and the sealing plug ensures that the system is tight and leak-free after filling, thereby ensuring safe operation. The cover plate is firmly matched with the limit mounting groove through the plug block, which enhances the installation strength and protective effect of the oil box, effectively prevents the entry of external impurities and structural loosening, and improves the overall sealing and maintenance convenience of the lubrication system.

[0016] Optionally, a stabilizing assembly is provided between the outer ring of the bearing and the inner ring of the bearing, and the stabilizing assembly includes two stabilizing rings, which are fixedly connected by bolts, and a plurality of semicircular limit baffles are fixedly provided on the surface of the stabilizing ring, and the plurality of limit baffles are symmetrically wrapped around the front and rear sides of the rolling ball in groups of two.

[0017] By adopting this technical solution, a stabilizing assembly is installed between the bearing outer and inner rings. Two bolted stabilizing rings are used, and paired semicircular retaining plates are placed on the surfaces of the stabilizing rings to enclose the balls. This technical solution effectively limits the balls and enhances operational stability. The retaining plates symmetrically enclose the balls, preventing them from shifting or shaking during high-speed operation, thereby reducing operating noise and wear, and improving the bearing's operating precision and lifespan.

[0018] Optionally, an anti-blocking mesh cover is fixedly provided on the inner top of the bearing outer ring, and the position of the anti-blocking mesh cover corresponds to the liquid outlet end of the liquid guide tube.

[0019] By adopting the above technical solution, the anti-blocking mesh cover can prevent particulate impurities or external foreign matter from entering the ball contact area during the lubricating oil transportation process, thereby ensuring the stability of the lubrication effect and the smoothness of the ball operation.

[0020] Optionally, the limit baffle and the stabilizing ring are fixed by welding, and a small gap is reserved between the limit baffle and the ball to avoid interference with the normal rolling of the ball.

[0021] By adopting the above technical solution, the limit baffle and the stabilizing ring are fixed by welding, and a small gap is reserved between the limit baffle and the ball, so as to achieve a balance between the stability and freedom of movement of the ball. The welding connection enhances the overall strength and seismic performance of the structure, prevents the limit baffle from loosening or shifting during high-speed operation, and the reserved gap ensures the smooth rolling of the ball during operation, avoids increased friction or jamming due to excessively tight contact, and improves the operating efficiency and service life of the bearing.

[0022] Optionally, the one-way drain valve and the one-way air inlet valve are both made of high-temperature resistant and corrosion-resistant materials to meet the lubrication requirements of the drive motor in a long-term high-temperature operation environment.

[0023] By adopting the above technical solutions, the stability and durability of the self-lubricating system in high temperature and corrosive environments are improved. The drive motor will generate a high operating temperature during long-term operation, and ordinary materials are prone to aging and failure. The use of high-temperature and corrosion-resistant materials can ensure that the valve body structure will not deform or leak, and ensure that the one-way flow control function of the lubricating oil is continuously effective, thereby maintaining a good lubrication state of the bearing, extending its service life, and improving overall operational reliability.

[0024] Optionally, the sealing plug is made of a composite material of rubber and polytetrafluoroethylene, has good sealing and oil resistance, and can effectively prevent oil leakage and impurities from entering.

[0025] By adopting the above technical solution, the sealing performance and oil resistance of the filling hole are significantly improved. The rubber material has good elasticity and tightness, and polytetrafluoroethylene has excellent corrosion resistance and oil resistance. The combination of the two effectively prevents the leakage of lubricating oil during storage or operation, and prevents external dust, impurities or moisture from penetrating into the oil box, ensuring the cleanliness and stable operation of the lubrication system, thereby extending the service life of the bearing.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By arranging a self-lubricating component on the surface of the outer ring of the deep groove ball bearing, during the use of the bearing, when the ball performs a circular motion between the inner ring and the outer ring of the bearing, the ball can repeatedly push the linkage plate upward, and the linkage plate drives the movable rod to move upward, thereby driving the push plate upward to squeeze the lubricating oil in the oil box, so that the oil is sprayed to the inner ring of the bearing and the surface of the ball through the liquid guide tubes on both sides, thereby achieving a self-lubricating effect on the ball, realizing automatic lubrication when the automobile drive motor is working, and improving the stability of the drive motor bearing during operation.

[0027] 2. By setting a stabilizing component between the outer ring and the inner ring of the bearing, compared with the existing bearing stabilizing frame, the limiting baffle on the surface of the stabilizing ring can be used to wrap and limit the ball, preventing the ball from deflecting and generating noise during rotation, further improving the smoothness and stability of the ball inside the bearing, and at the same time achieving a noise reduction effect on the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the front view of the deep groove ball bearing for the drive motor of new energy vehicles proposed in this application.

[0029] Figure 2 This is a rear view structural diagram of the deep groove ball bearing for the drive motor of new energy vehicles proposed in this application.

[0030] Figure 3 This is a schematic diagram of the partial cross-sectional structure of the outer ring of the deep groove ball bearing for the drive motor of the new energy vehicle proposed in this application.

[0031] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0032] Figure 5 This is a schematic diagram of the structure of the deep groove ball bearing for the drive motor of new energy vehicles proposed in this application.

[0033] In the accompanying drawings: 1. Bearing outer ring; 2. Bearing inner ring; 3. Ball; 4. Self-lubricating component; 5. Through-hole; 6. Stabilizing component; 7. Anti-blocking mesh cover; 401. Limit mounting groove; 402. Oil box; 403. Liquid push plate; 404. Movable rod; 405. Linkage plate; 406. Liquid guide tube; 407. Extension plate; 408. Limit guide rod; 409. Compression spring; 410. One-way drain valve; 411. Air inlet pipe; 412. Liquid filling hole; 413. Sealing plug; 414. Cover plate; 415. Strip plug; 601. Stabilizing ring; 602. Limit baffle. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-5 This application is described in further detail.

[0035] The embodiment of the present application discloses a deep groove ball bearing for a drive motor of a new energy vehicle. Figure 1 and Figure 2 , a deep groove ball bearing for a drive motor of a new energy vehicle, comprising a bearing outer ring 1, a bearing inner ring 2 and a ball 3, wherein the ball 3 is installed between the bearing outer ring 1 and the bearing inner ring 2, and a self-lubricating component 4 is provided on the surface of the bearing outer ring 1; Figure 3 and Figure 4 A stabilizing assembly 6 is provided between the outer ring 1 of the bearing and the inner ring 2 of the bearing. The stabilizing assembly 6 includes two stabilizing rings 601, which are fixedly connected by bolts. Several semicircular limit baffles 602 are fixedly provided on the surface of the stabilizing ring 601. Several limit baffles 602 are symmetrically wrapped around the front and rear sides of the ball 3 in groups of two. By providing the stabilizing assembly 6 between the outer ring 1 of the bearing and the inner ring 2 of the bearing, compared with the existing bearing stabilizing frame, the limit baffles 602 on the surface of the stabilizing ring 601 can be used to wrap and limit the ball 3, thereby preventing the ball 3 from deflecting and generating noise during rotation, further improving the smoothness and stability of the ball 3 inside the bearing, and at the same time achieving a noise reduction effect on the bearing.

[0036] Reference Figure 4 and Figure 5The self-lubricating component 4 includes a limit mounting groove 401 provided on the surface of the bearing outer ring 1, an oil box 402 is fixedly arranged inside the limit mounting groove 401, a liquid filling hole 412 is provided on the upper surface of the oil box 402, and a sealing plug 413 is threadedly connected to the inner wall of the liquid filling hole 412, and a cover plate 414 is provided on the top of the oil box 402. The size of the cover plate 414 matches the limit mounting groove 401, and a strip plug 415 is fixedly connected to the lower surface of the cover plate 414. The strip plug 415 is inserted into the gap between the oil box 402 and the limit mounting groove 401. By providing the strip plug 415 and the cover plate 414, the cover plate 414 can be used to insert the strip plug 415 into the limit mounting groove 401, so that it is convenient for the staff to open the cover plate 414 to refuel the oil box 402.

[0037] Reference Figure 3 and Figure 4 , a liquid pushing plate 403 is provided inside the oil box 402, and a movable rod 404 is fixedly connected to the lower surface of the liquid pushing plate 403. The bottom end of the movable rod 404 extends to the outside of the oil box 402 and is fixedly connected to a linkage plate 405. A through hole 5 is provided on the top inner side of the bearing outer ring 1. The position of the through hole 5 corresponds to the linkage plate 405. A liquid guide tube 406 is fixedly embedded on both sides of the oil box 402. The end of the liquid guide tube 406 away from the oil box 402 extends downward to the inside of the bearing outer ring 1, and the output of the liquid guide tube 406 The end corresponds to the position of the ball 3, and the liquid guide tube 406 can be used to spray lubricating oil on the surface of the ball 3. An anti-blocking mesh cover 7 is fixedly provided on the inner top of the bearing outer ring 1. The position of the anti-blocking mesh cover 7 corresponds to the liquid outlet end of the liquid guide tube 406. The anti-blocking mesh cover 7 can prevent the liquid guide tube 406 from being blocked to avoid the oil outlet of the liquid guide oil 406 from being blocked. A one-way drain valve 410 is fixedly provided on the surface of the liquid guide tube 406, and an air intake pipe 411 is fixedly embedded on the surface of the oil box 402, and a one-way air intake valve is fixedly provided on the surface of the air intake pipe 411.

[0038] When the liquid pushing plate 403 is reset downward, air can be input into the oil box 402 through the air inlet pipe 411 , and the air and oil can be input into the liquid guide tube 406 together during the movement of the liquid pushing plate 403 .

[0039] It should be further explained that two extension plates 407 are fixedly connected to the surface of the linkage plate 405, and two limiting guide rods 408 are fixedly connected between the lower surface of the oil box 402 and the inner bottom wall of the limiting mounting groove 401. The surface of the extension plate 407 is provided with a sliding through hole matching the limiting guide rod 408, and the extension plate 407 is slidingly connected to the surface of the limiting guide rod 408 through the sliding through hole. The surface of the limiting guide rod 408 is sleeved with a compression spring 409, and the bottom end of the compression spring 409 is fixedly connected to the upper surface of the linkage plate 405, and the top end of the compression spring 409 is fixedly connected to the lower surface of the oil box 402.

[0040] It is worth noting that by providing a self-lubricating component 4 on the surface of the outer ring 1 of the deep groove ball bearing, during the use of the bearing, when the ball 3 performs circular motion between the bearing inner ring 2 and the bearing outer ring 1, the ball 3 can repeatedly push the linkage plate 405 upward, and then the linkage plate 405 drives the movable rod 404 to move upward, and then drives the liquid pusher plate 403 upward to squeeze the lubricating oil in the oil box 402, so that the oil is sprayed out to the surface of the bearing inner ring 2 and the ball 3 through the liquid guide tubes 406 on both sides, thereby achieving a self-lubricating effect on the ball 3, realizing automatic lubrication when the automobile drive motor is working, and improving the stability of the drive motor bearing during operation.

[0041] The implementation principle of a deep groove ball bearing for a drive motor of a new energy vehicle according to an embodiment of the present application is as follows: when the drive motor of the new energy vehicle drives the drive shaft to rotate, the drive shaft simultaneously drives the deep groove ball bearing to rotate, thereby driving the bearing inner ring 2 and several balls 3 to perform circular motion inside the bearing outer ring 1. When the balls 3 move to the top inner side of the bearing outer ring 1, they push the linkage plate 405 to move toward the inside of the through hole 5. The linkage plate 405 drives the movable rod 404 to move upward, and at the same time drives the two extension plates 407 to slide on the surface of the limiting guide rod 408. The extension plate 407 is used to squeeze the compression spring 409. The movable rod 404 drives the liquid pusher plate 403 to move in the oil box 402. The lubricating liquid in the oil box 402 is squeezed out from the liquid guide tubes 406 on both sides by the liquid pusher plate 403, and the oil is sprayed into the channel of the balls 3 on the surface of the bearing inner ring 2 by the liquid guide tubes 406, so that the balls 3 are lubricated by the oil, thereby achieving the effect of automatically lubricating the bearing when the drive motor is working.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A deep groove ball bearing for a drive motor of a new energy vehicle, comprising a bearing outer ring (1), a bearing inner ring (2) and a ball (3), characterized in that: The rolling ball (3) is installed between the bearing outer ring (1) and the bearing inner ring (2), and the surface of the bearing outer ring (1) is provided with a self-lubricating component (4); The self-lubricating component (4) includes a limit installation groove (401) provided on the surface of the bearing outer ring (1), an oil box (402) is fixedly provided inside the limit installation groove (401), a liquid push plate (403) is provided inside the oil box (402), a movable rod (404) is fixedly connected to the lower surface of the liquid push plate (403), the bottom end of the movable rod (404) extends to the outside of the oil box (402) and is fixedly connected to a linkage plate (405), a through hole (5) is provided on the inner top of the bearing outer ring (1), the position of the through hole (5) corresponds to the linkage plate (405), a liquid guide tube (406) is fixedly embedded on both sides of the oil box (402), the end of the liquid guide tube (406) away from the oil box (402) extends downward to the inside of the bearing outer ring (1), and the output end of the liquid guide tube (406) corresponds to the position of the ball (3).

2. The deep groove ball bearing for a drive motor for a new energy vehicle according to claim 1, characterized in that: Two extension plates (407) are fixedly connected to the surface of the linkage plate (405), two limiting guide rods (408) are fixedly connected between the lower surface of the oil box (402) and the inner bottom wall of the limiting installation groove (401), and a sliding through hole matching the limiting guide rod (408) is opened on the surface of the extension plate (407), and the extension plate (407) is slidably connected to the surface of the limiting guide rod (408) through the sliding through hole.

3. The deep groove ball bearing for a drive motor for a new energy vehicle according to claim 2, characterized in that: A compression spring (409) is sleeved on the surface of the limiting guide rod (408), the bottom end of the compression spring (409) is fixedly connected to the upper surface of the linkage plate (405), and the top end of the compression spring (409) is fixedly connected to the lower surface of the oil box (402).

4. The deep groove ball bearing for a drive motor for a new energy vehicle according to claim 1, characterized in that: A one-way drain valve (410) is fixedly provided on the surface of the liquid guide tube (406), an air intake pipe (411) is fixedly embedded on the surface of the oil box (402), and a one-way air intake valve is fixedly provided on the surface of the air intake pipe (411).

5. The deep groove ball bearing for a drive motor for a new energy vehicle according to claim 1, characterized in that: A liquid adding hole (412) is provided on the upper surface of the oil box (402), and a sealing plug (413) is threadedly connected to the inner wall of the liquid adding hole (412). A cover plate (414) is provided on the top of the oil box (402), and the size of the cover plate (414) matches the position-limiting installation groove (401). A strip-shaped plug (415) is fixedly connected to the lower surface of the cover plate (414), and the strip-shaped plug (415) is inserted and installed in the gap between the oil box (402) and the position-limiting installation groove (401).

6. The deep groove ball bearing for a drive motor for a new energy vehicle according to claim 1, characterized in that: A stabilizing assembly (6) is provided between the bearing outer ring (1) and the bearing inner ring (2), and the stabilizing assembly (6) includes two stabilizing rings (601). The two stabilizing rings (601) are fixedly connected by bolts, and a plurality of semicircular limiting baffles (602) are fixedly provided on the surface of the stabilizing rings (601). The plurality of limiting baffles (602) are symmetrically wrapped around the front and rear sides of the rolling ball (3) in a group of two.

7. The deep groove ball bearing for a drive motor for a new energy vehicle according to claim 1, characterized in that: An anti-blocking mesh cover (7) is fixedly provided on the inner top of the bearing outer ring (1), and the position of the anti-blocking mesh cover (7) corresponds to the liquid outlet end of the liquid guide tube (406).

8. The deep groove ball bearing for a drive motor for a new energy vehicle according to claim 6, characterized in that: The limiting baffle (602) and the stabilizing ring (601) are fixed by welding, and a small gap is reserved between the limiting baffle (602) and the rolling ball (3) to avoid interference with the normal rolling of the rolling ball (3).

9. The deep groove ball bearing for a drive motor for a new energy vehicle according to claim 4, characterized in that: The one-way drain valve (410) and the one-way air intake valve are both made of high-temperature resistant and corrosion-resistant materials to meet the lubrication requirements of the drive motor in a long-term high-temperature operation environment.

10. The deep groove ball bearing for a drive motor for a new energy vehicle according to claim 5, characterized in that: The sealing plug (413) is made of a composite material of rubber and polytetrafluoroethylene, has good sealing properties and oil resistance, and can effectively prevent oil leakage and impurities from entering.

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