Hub motor combining external rotation type motor and magnetomotive generator and electric vehicle

Abstract

On one hand, the utility model provides a hub motor combining an external rotation type motor and a magnetomotive generator, the hub motor comprises a main hub and a motor shaft, two ends of the motor shaft penetrate through the centers of two axial sides of the main hub and are rotatably connected with the main hub, and a first permanent magnet is circumferentially fixed on the inner wall of the main hub. A main motor stator assembly, an auxiliary motor stator assembly and a magnetomotive generator stator assembly are fixedly arranged on the motor shaft side by side, the main motor stator assembly is used in cooperation with the first permanent magnet to drive the main hub to rotate, and an auxiliary hub rotationally connected with the motor shaft is arranged outside the magnetomotive generator stator assembly. An auxiliary motor rotor is fixedly arranged on the outer wall of the auxiliary hub, and a second permanent magnet is fixed to the inner side of the auxiliary motor rotor in the circumferential direction. On the other hand, the utility model provides an electric vehicle. According to the utility model, the structure is compact, the main motor stator assembly, the auxiliary motor stator assembly and the magnetomotive generator stator assembly are coaxially arranged on the motor shaft, and the installation space is saved.

Description

Technical Field

[0001] This utility model relates to a hub motor and electric vehicle that combines an external rotating motor with a magnetic power generator. Background Technology

[0002] Current electric vehicle hub motors primarily rely on regenerative braking to recover energy, but they cannot continuously generate electricity during coasting or parking. The traditional separate design of the hub motor and generator leads to structural redundancy and low efficiency; therefore, existing technologies require further improvement and development. Summary of the Invention

[0003] To address the shortcomings mentioned above, this utility model provides a hub motor and electric vehicle that combines an external rotating motor with a magnetic power generator.

[0004] To achieve the above objectives, this utility model provides a hub motor combining an external rotating motor and a magnetic power generator, including a main hub and a motor shaft. The motor shaft passes through the center of both sides of the main hub and is rotatably connected thereto. A first permanent magnet is circumferentially fixed to the inner wall of the main hub. A main motor stator assembly, an auxiliary motor stator assembly, and a magnetic power generator stator assembly are fixed side-by-side on the motor shaft. The main motor stator assembly works in conjunction with the first permanent magnet to drive the main hub to rotate. An auxiliary hub, rotatably connected to the motor shaft, is located outside the magnetic power generator stator assembly. An auxiliary motor rotor is fixed to the outer wall of the auxiliary hub. A second permanent magnet is circumferentially fixed to the inner side of the auxiliary motor rotor. The auxiliary motor stator assembly works in conjunction with the second permanent magnet to drive the auxiliary motor rotor and the auxiliary hub to rotate around the motor shaft. A third permanent magnet is circumferentially fixed to the inner wall of the auxiliary hub. The magnetic power generator stator assembly works in conjunction with the third permanent magnet to generate induced current and achieve power generation.

[0005] Furthermore, the third permanent magnet adopts a Halbach array or a gradient magnetic field arrangement.

[0006] Furthermore, a fourth permanent magnet is provided on the working end plate of the stator assembly of the magnetic power generator.

[0007] Furthermore, the main motor stator assembly is connected to wire one, the auxiliary motor stator assembly is connected to wire two, and the magnetic power generator stator assembly is connected to wire three. The main motor stator assembly and the auxiliary motor stator assembly are located on the same side of the magnetic power generator stator assembly. The motor shaft is respectively provided with wire inlet hole one and wire inlet hole two. Wire inlet hole one is located on one side of the main motor stator assembly. Wire one and wire two pass through wire inlet hole one to the outside of the motor shaft. Wire inlet hole two is located within the area defined by the auxiliary hub. Wire three passes through wire inlet hole two to the outside of the motor shaft.

[0008] On the other hand, this utility model provides an electric vehicle having a hub motor that combines an external rotating motor with a magnetic power generator, as described above.

[0009] The advantages of this utility model compared to the prior art are as follows: The structure of this utility model is compact, with the main motor stator assembly, auxiliary motor stator assembly, and magnetic power generator stator assembly coaxially mounted on the motor shaft, saving installation space; and the auxiliary hub can rotate under the force of the auxiliary motor stator assembly and the second permanent magnet, or it can rotate on its own under the action of inertia after the auxiliary motor stator assembly is de-energized, so that the magnetic power generator stator assembly can continuously generate induced current to charge the electric vehicle battery, thereby increasing the electric vehicle battery range. Attached Figure Description

[0010] Figure 1 This is a cross-sectional structural diagram of Embodiment 1 of the present utility model;

[0011] Figure 2 This is a control circuit diagram of Embodiment 1 of the present invention;

[0012] Figure 3 This is a cross-sectional structural diagram of Embodiment 2 of the present invention. Detailed Implementation

[0013] Example 1: As Figure 1 As shown in the figure, a hub motor combining an external rotating motor and a magnetic power generator according to an embodiment of the present invention includes a main hub 1 and a motor shaft 4. The two ends of the motor shaft 4 pass through the center of both sides of the main hub 1 and are rotatably connected thereto. Specifically, the main hub 1 includes a main hub steel ring 2 and main side covers 3 covering the two ends of the main hub steel ring 2. The main hub steel ring 2 and the main side covers 3 are fixedly connected by bolts. The two ends of the motor shaft 4 pass through the center of the main side covers 3 and are rotatably connected thereto by bearings, so that the main hub 1 can rotate relative to the motor shaft 4.

[0014] Furthermore, such as Figure 1As shown, in this embodiment, a first permanent magnet 5 is circumferentially fixed on the inner wall of the main hub 1. A main motor stator assembly 6, an auxiliary motor stator assembly 7, and a magnetic power generator stator assembly 8 are fixed side by side on the motor shaft 4. The main motor stator assembly 6 and the first permanent magnet 5 work together to form a main motor to drive the main hub 1 to rotate. An auxiliary hub 9 is provided on the outside of the magnetic power generator stator assembly 8 and is rotatably connected to the motor shaft 4. The auxiliary hub 9 includes an auxiliary hub steel ring 10 and auxiliary side covers 11 covering the two ends of the auxiliary hub steel ring 10. The two ends of the motor shaft 4 pass through the center of the auxiliary side covers 11 and are rotatably connected to them with bearings. An auxiliary motor rotor 12 is fixed on the outer wall of the auxiliary hub 9. A second permanent magnet 13 is circumferentially fixed on the inner side of the auxiliary motor rotor 12. The auxiliary motor stator assembly 7 and the second permanent magnet 13 work together to form an auxiliary motor to drive the auxiliary motor. The rotor 12 and the auxiliary hub 9 rotate around the motor shaft 4. The auxiliary motor is an booster for the rotation of the auxiliary hub 9, and a third permanent magnet 14 is circumferentially fixed on the inner wall of the auxiliary hub 9. The magnetic power generator stator assembly 8 works in conjunction with the third permanent magnet 14 to form a magnetic power generator and is connected to the electric vehicle battery management system circuit. When the auxiliary hub 9 is subjected to force and rotates under the action of the auxiliary motor stator assembly 7 and the second permanent magnet 13, it can also rotate on its own under the action of inertia after the auxiliary motor stator assembly 7 is de-energized. This process repeats, so that the magnetic power generator stator assembly 8 can continuously generate induced current to charge the electric vehicle battery and increase the electric vehicle battery range. At the same time, the induced current generated by the magnetic power generator stator assembly 8 is integrated and given priority to the drive battery pack of the electric vehicle battery. Excess power is stored in the backup battery of the electric vehicle battery.

[0015] Furthermore, such as Figure 1 As shown, in this embodiment, the third permanent magnet 14 adopts a Halbach array or gradient magnetic field arrangement, which can optimize the magnetic flux density distribution. The magnetization direction of adjacent permanent magnets gradually changes by 90°, forming a unidirectional enhanced magnetic field, and the magnetic flux density is increased to 1.8T (35% higher than the conventional array), and the magnetic power generation power density reaches the highest level. At the same time, a fourth permanent magnet 15 is provided on the working end plate of the magnetic power generator stator assembly 8. The fourth permanent magnet 15 and the third permanent magnet 14 work together with the magnetic power generator stator assembly 8 to cut magnetic field lines and generate more induced current.

[0016] Furthermore, such as Figure 1As shown, in this embodiment, the main motor stator assembly 6 is connected to wire 16, the auxiliary motor stator assembly 7 is connected to wire 2 17, and the magnetic power generator stator assembly 8 is connected to wire 3 18. The main motor stator assembly 6 and the auxiliary motor stator assembly 7 are located on the same side of the magnetic power generator stator assembly 8. The motor shaft 4 is provided with wire inlet hole 1 4-1 and wire inlet hole 2 4-2 respectively. Wire inlet hole 1 4-1 is located on one side of the main motor stator assembly 6. Wire 1 16 and wire 2 17 pass through wire inlet hole 1 4-1 to the outside of the motor shaft 4 and are connected to the electric vehicle battery circuit after passing through the control circuit. Wire inlet hole 2 4-2 is located within the area defined by the auxiliary hub 9. Wire 3 18 passes through wire inlet hole 2 4-2 to the outside of the motor shaft 4 and is connected to the electric vehicle battery circuit after current integration.

[0017] Furthermore, this embodiment also includes an electric vehicle having a hub motor that combines an external rotating motor with a magnetic power generator as described above.

[0018] Furthermore, the circuit diagram in this embodiment is as follows: Figure 2 As shown: The main motor is controlled by the main motor control system. When the electric vehicle power switch B is turned on, a small voltage is output from the main motor control system to the positive terminal of the relay. The negative terminal of the relay is connected to the negative terminal of the voltage converter output switch contact A. The positive terminal of the auxiliary motor is connected to the positive terminal of the voltage converter. At this time, the original relay is open, and the two wires controlled by the relay are closed, so the positive terminal of the relay is energized. When the electric vehicle is in motion, if the battery power is low, the electric vehicle indicator light flashes. The negative terminal of the voltage converter output contact A is energized, and the auxiliary motor starts working, driving the magnetic generator. When the magnetic generator generates electricity, the indicator light is on. When contact A is closed, the auxiliary motor stops working. With the assistance of the auxiliary motor, the magnetic generator (due to inertia) rotates to generate electricity. At this time, the electricity generated by the magnetic generator passes through the magnetic generator control system to charge the electric vehicle battery. When the electric vehicle is ridden to the parking lot, the electric vehicle power switch B is turned off, and contact A is closed. The auxiliary motor starts working, driving the magnetic generator. The magnetic generator's power generation indicator light is on. When contact A is closed, the auxiliary motor stops working, and the magnetic generator (due to inertia) rotates to generate electricity. Once the battery is fully charged, the magnetic power control system automatically shuts off, and this charging cycle repeats.

[0019] Example 2: The difference between this example and Example 1 is that the hub motor can be equipped with multiple main motors and magnetic generators. Multiple main motors can generate greater torque, and multiple magnetic generators can generate more electricity to charge the electric vehicle battery. Figure 2 The image showcases a hub motor with dual motors and a magnetic generator.

[0020] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hub motor combining an external rotating motor and a magnetic power generator, characterized in that: The device includes a main hub (1) and a motor shaft (4). The two ends of the motor shaft (4) pass through the center of both sides of the main hub (1) and are rotatably connected to it. A first permanent magnet (5) is fixed circumferentially on the inner wall of the main hub (1). A main motor stator assembly (6), an auxiliary motor stator assembly (7), and a magnetic power generator stator assembly (8) are fixed side by side on the motor shaft (4). The main motor stator assembly (6) works in conjunction with the first permanent magnet (5) to drive the main hub (1) to rotate. The magnetic power generator stator assembly (8) is externally connected to the motor shaft (4) for rotation. The auxiliary hub (9) is dynamically connected. An auxiliary motor rotor (12) is fixed on the outer wall of the auxiliary hub (9). A second permanent magnet (13) is fixed circumferentially on the inner side of the auxiliary motor rotor (12). The auxiliary motor stator assembly (7) works in conjunction with the second permanent magnet (13) to drive the auxiliary motor rotor (12) and the auxiliary hub (9) to rotate around the motor shaft (4). A third permanent magnet (14) is fixed circumferentially on the inner wall of the auxiliary hub (9). The magnetic power generator stator assembly (8) works in conjunction with the third permanent magnet (14) to generate induced current and realize power generation.

2. The hub motor combining an external rotating motor and a magnetic power generator according to claim 1, characterized in that: The third permanent magnet (14) is arranged in a Halbach array or a gradient magnetic field.

3. A hub motor combining an external rotating motor and a magnetic power generator according to claim 1, characterized in that: The working end plate of the stator assembly (8) of the magnetic power generator is provided with a fourth permanent magnet (15).

4. A hub motor combining an external rotating motor and a magnetic power generator according to any one of claims 1 to 3, characterized in that: The main motor stator assembly (6) is connected to wire 1 (16), the auxiliary motor stator assembly (7) is connected to wire 2 (17), and the magnetic power generator stator assembly (8) is connected to wire 3 (18). The main motor stator assembly (6) and the auxiliary motor stator assembly (7) are located on the same side of the magnetic power generator stator assembly (8). The motor shaft (4) is provided with wire inlet hole 1 (4-1) and wire inlet hole 2 (4-2). The wire inlet hole 1 (4-1) is located on one side of the main motor stator assembly (6). The wire 1 (16) and the wire 2 (17) pass through the wire inlet hole 1 (4-1) to the outside of the motor shaft (4). The wire inlet hole 2 (4-2) is located within the area defined by the auxiliary hub (9). The wire 3 (18) passes through the wire inlet hole 2 (4-2) to the outside of the motor shaft (4).

5. An electric vehicle, characterized in that, A hub motor comprising an external rotating motor and a magnetic power generator as described in any one of claims 1 to 4.

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