Hub motor

Abstract

The utility model relates to the technical field of wheel hub motors, and discloses a wheel hub motor, which comprises a connecting main shaft, a stator assembly, a stator coil, a wheel hub rotor and a magnetic shoe, the stator assembly is fixedly sleeved on the shaft wall of the connecting main shaft, the stator coil is arranged around the outer side of the stator assembly, the wheel hub rotor is sleeved on the outer side of the stator assembly, and the magnetic shoe is arranged on the outer side of the wheel hub rotor. The magnetic shoes are fixedly arranged on the inner wall of the hub rotor in a surrounding mode, a connecting ring is fixedly connected to the side wall of the hub rotor, a mounting ring is fixedly connected to the side, away from the hub rotor, of the connecting ring, and a controller and an alarm are arranged on the inner wall of the stator assembly. According to the utility model, if the wheel hub rotor deviates, the metal elastic strip is bent to increase the thrust on the pressing block, the pressure on the surface of the pressure sensor is improved, and the controller can drive the alarm to carry out alarm processing, so that the adjustment can be found in time, the abrasion is reduced, and the service life of the wheel hub motor is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of hub motor technology, and in particular to a hub motor. Background Technology

[0002] In-wheel motors are a new type of drive system that integrates an electric motor directly into the wheel hub of a vehicle. Unlike traditional centralized drive systems, they integrate the power unit, transmission unit, and braking unit into the wheel hub, allowing the wheel to perform multiple functions such as driving and braking.

[0003] In the prior art, the hub motor is located on the inside of the wheel. During driving, if the rotor housing of the hub motor is displaced relative to the stator due to external forces, wear will occur between the rotor and the stator, affecting the subsequent use of the hub motor. Therefore, this application designs a hub motor. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that in the prior art, the hub motor is located on the inside of the wheel. If the rotor housing of the hub motor is offset relative to the stator due to external force during driving, it will cause wear between the rotor and the stator, which will affect the subsequent use of the hub motor. Therefore, a hub motor is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hub motor includes a connecting main shaft, a stator assembly, a stator coil, a hub rotor, and magnets. The stator assembly is fixedly sleeved on the shaft wall of the connecting main shaft. The stator coil is arranged around the outside of the stator assembly. The hub rotor is sleeved on the outside of the stator assembly. The magnets are arranged around the inner wall of the hub rotor. A connecting ring is fixedly connected to the side wall of the hub rotor. An mounting ring is fixedly connected to the side of the connecting ring opposite to the hub rotor. A controller and an alarm are provided on the inner wall of the stator assembly. A pressure sensor is fixedly connected to the side wall of the stator assembly. The pressure sensor and the alarm are electrically connected to the controller.

[0007] Preferably, a mounting plate is fixedly connected to the outer side of the hub rotor, and the mounting plate has multiple threaded mounting holes inside.

[0008] Preferably, a stabilizing seat is fixedly connected to the inner wall of the hub rotor, and a groove is provided on the inner wall of the connecting main shaft at its end. A stabilizing turntable is fixedly connected to one end of the stabilizing seat relative to the connecting main shaft, and the stabilizing turntable is slidably disposed on the inner wall of the groove.

[0009] Preferably, the sidewall of the stabilizing turntable has rounded corners, and the inner wall of the stabilizing turntable is provided with rolling balls, which are rolled on the inner wall of the groove.

[0010] Preferably, a stabilizing sleeve is fixedly connected to the inner wall of the hub rotor, and a protective stabilizing sleeve is provided on the inner wall of the stator assembly. The stabilizing sleeve is slidably disposed on the inner wall of the protective stabilizing sleeve.

[0011] Preferably, the inner wall of the connecting ring has a cavity, and a metal elastic strip is fixedly connected to the inner wall of the cavity. A pressure block is fixedly connected to the end of the metal elastic strip, and the pressure block passes through the cavity and fits against the surface of the pressure sensor.

[0012] Compared with the prior art, the present invention provides a hub motor with the following advantages:

[0013] 1. This hub motor, by mounting the connecting spindle on the vehicle body, allows the tire to be mounted on the side wall of the hub rotor. The mounting plate can stably connect the hub rotor and the tire through threaded mounting holes. The connecting ring and mounting ring ensure stable installation. The stator assembly can drive the hub rotor through stator coils, enabling it to rotate and ensuring the performance of the hub motor.

[0014] 2. This hub motor, through the stabilizing seat and stabilizing turntable, enables the hub rotor to rotate stably along the shaft body connected to the main shaft when rotating. The ball bearings can reduce friction and wear, and the stabilizing sleeve slides along the inner wall of the protective stabilizing sleeve, which can further improve the stability of the hub rotor rotating outside the stator assembly.

[0015] 3. In this hub motor, if the hub rotor deviates, the metal elastic strip will bend, increasing the thrust on the pressure block and raising the pressure on the surface of the pressure sensor. This allows the controller to drive the alarm to trigger an alarm, enabling timely detection and adjustment, reducing wear, and extending the service life of the hub motor. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a hub motor proposed in this utility model.

[0017] Figure 2 for Figure 1 A magnified schematic diagram of part A in the middle section.

[0018] Figure 3 for Figure 1 Three-dimensional view of the central stabilizer.

[0019] In the diagram: 1 Connecting spindle, 2 Stator assembly, 3 Stator coil, 4 Hub rotor, 5 Magnet, 6 Connecting ring, 7 Mounting ring, 8 Mounting platform, 9 Stabilizer, 10 Stabilizing turntable, 11 Ball bearing, 12 Stabilizing sleeve, 13 Protective stabilizing sleeve, 14 Controller, 15 Pressure sensor, 16 Alarm, 17 Metal elastic strip, 18 Pressure block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-3 A hub motor includes a connecting main shaft 1, a stator assembly 2, a stator coil 3, a hub rotor 4, and a magnet 5. The stator assembly 2 is fixedly sleeved on the shaft wall of the connecting main shaft 1. The stator coil 3 is arranged around the outside of the stator assembly 2. The hub rotor 4 is sleeved on the outside of the stator assembly 2. The magnet 5 is arranged around the inner wall of the hub rotor 4. A connecting ring 6 is fixedly connected to the side wall of the hub rotor 4. A mounting ring 7 is fixedly connected to the side of the connecting ring 6 away from the hub rotor 4. A controller 14 and an alarm 16 are provided on the inner wall of the stator assembly 2. A pressure sensor 15 is fixedly connected to the side wall of the stator assembly 2. The pressure sensor 15 and the alarm 16 are electrically connected to the controller 14 respectively. A mounting plate 8 is fixedly connected to the outside of the hub rotor 4. The mounting plate 8 has multiple threaded mounting holes inside.

[0022] A stabilizing seat 9 is fixedly connected to the inner wall of the hub rotor 4. A groove is provided on the inner wall of the connecting main shaft 1 at the end. A stabilizing turntable 10 is fixedly connected to one end of the stabilizing seat 9 relative to the connecting main shaft 1. The stabilizing turntable 10 is slidably disposed on the inner wall of the groove. The side wall of the stabilizing turntable 10 is provided with rounded corners. A ball bearing 11 is rolled on the inner wall of the stabilizing turntable 10. The ball bearing 11 is rolled on the inner wall of the groove.

[0023] In use, the connecting spindle 1 is installed on the vehicle body, and the entire tire can be installed on the side wall of the hub rotor 4. The mounting plate 8 can stably connect the hub rotor 4 and the tire through the threaded mounting holes. The connecting ring 6 and the mounting ring 7 can ensure stable installation. The stator assembly 2 can drive the hub rotor 4 through the stator coil 3 to make it rotate, ensuring the performance of the hub motor.

[0024] The stabilizer 9 and stabilizer turntable 10 enable the hub rotor 4 to rotate stably along the shaft body connected to the main shaft 1 when it rotates, and the ball bearings 11 can reduce friction and wear.

[0025] To improve the stability of the hub rotor 4 rotating outside the stator assembly 2, such as Figure 1-3As shown, a stabilizing sleeve 12 is fixedly connected to the inner wall of the hub rotor 4, and a protective stabilizing sleeve 13 is provided on the inner wall of the stator assembly 2. The stabilizing sleeve 12 is slidably disposed on the inner wall of the protective stabilizing sleeve 13. A cavity is opened in the inner wall of the connecting ring 6. A metal elastic strip 17 is fixedly connected to the inner wall of the cavity. A pressure block 18 is fixedly connected to the end of the metal elastic strip 17. The pressure block 18 passes through the cavity and is attached to the surface of the pressure sensor 15.

[0026] The stabilizing sleeve 12 slides along the inner wall of the protective stabilizing sleeve 13, which can further improve the stability of the hub rotor 4 rotating outside the stator assembly 2.

[0027] If the hub rotor 4 deviates, the metal elastic strip 17 will bend, increasing the thrust on the pressure block 18 and increasing the pressure on the surface of the pressure sensor 15. This will allow the controller 14 to drive the alarm 16 to perform an alarm, thereby enabling timely detection and adjustment, reducing wear, and extending the service life of the hub motor.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wheel hub motor comprising a connecting main shaft (1), a stator assembly (2), a stator coil (3), a wheel hub rotor (4) and a magnetic tile (5), characterized in that: The stator assembly (2) is fixedly sleeved on the shaft wall of the connecting main shaft (1), the stator coil (3) is arranged on the outer side of the stator assembly (2), the hub rotor (4) is sleeved on the outer side of the stator assembly (2), the magnetic shoe (5) is fixedly arranged on the inner wall of the hub rotor (4), the connecting ring (6) is fixedly connected to the side wall of the hub rotor (4), the mounting ring (7) is fixedly connected to the side, away from the hub rotor (4), of the connecting ring (6), the inner wall of the stator assembly (2) is provided with the controller (14) and the alarm (16), the side wall of the stator assembly (2) is fixedly connected with the pressure sensor (15), and the pressure sensor (15) and the alarm (16) are electrically connected with the controller (14) respectively.

2. The wheel hub motor according to claim 1, characterized in that: The outer side of the hub rotor (4) is fixedly connected with the mounting platform (8), and the mounting platform (8) is internally provided with a plurality of threaded mounting holes.

3. The wheel hub motor of claim 1, wherein: The inner wall of the hub rotor (4) is fixedly connected with the stabilizing seat (9), the inner wall of the end of the connecting main shaft (1) is provided with a groove, the stabilizing seat (9) is fixedly connected with the stabilizing turntable (10) relative to one end of the connecting main shaft (1), and the stabilizing turntable (10) is slidingly arranged on the inner wall of the groove.

4. The wheel hub motor according to claim 3, characterized in that: The side wall of the stabilizing turntable (10) is provided with a fillet, and the inner wall of the stabilizing turntable (10) is rollingly provided with the ball (11).

5. The wheel hub motor of claim 1, wherein: The inner wall of the hub rotor (4) is fixedly connected with the stabilizing sleeve (12), and the inner wall of the stator assembly (2) is provided with the protective stabilizing sleeve (13).

6. The wheel hub motor of claim 1, wherein: The inner wall of the connecting ring (6) is provided with a cavity, the metal elastic strip (17) is fixedly connected to the inner wall of the cavity of the connecting ring (6), the end of the metal elastic strip (17) is fixedly connected with the pressing block (18), and the pressing block (18) penetrates through the cavity and is attached to the surface of the pressure sensor (15).

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