Quick-release hub motor structure

Abstract

The utility model discloses a quick-release hub motor structure, and belongs to the technical field of electric vehicles. The motor mainly comprises a motor shell formed by combining a motor end cover and a motor disc brake end cover, a motor fixing shaft, a motor stator, a motor split hub and the like. According to the structure, the hub and the motor are innovatively separated, the hub is fixed to one side of the disc brake end cover through the screws, the motor outgoing line space is optimized, the motor installation opening size is compressed, the hub is prevented from rotating and rubbing with a cable outgoing line, and the universality and flexibility of the motor are improved. Meanwhile, the split hub of the motor can be compatible with a common tire changer in the market, equipment does not need to be transformed and upgraded, the hub can be rapidly disassembled and installed, the maintenance efficiency is greatly improved, and the maintenance cost is reduced. In addition, the structure can be quickly matched with different types of electric vehicles and different hub sizes, and the compatibility of hub motors of electric vehicle manufacturers is improved. The hub motor effectively solves the problems that a traditional hub motor is difficult to maintain, the performance of the motor is limited and the like, and has remarkable practical value.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle technology, and in particular to a quick-release hub motor structure. Background Technology

[0002] In today's electric vehicle technology field, the in-wheel motor, as one of the core components, directly affects the overall performance and ease of maintenance of the vehicle due to the rationality and practicality of its structural design. However, traditional electric vehicle in-wheel motors have revealed many problems that urgently need to be solved in actual use.

[0003] In terms of ease of maintenance, traditional electric vehicle hub motors use an integrated design of the hub and motor. When a tire is damaged and needs repair or replacement, due to the unique nature of this integrated structure, it is often necessary to remove the entire motor from the vehicle. This process is not only cumbersome and complex but also involves the removal of multiple components, such as the motor's connecting wires, significantly increasing the difficulty of maintenance. Furthermore, most auto repair shops on the market are limited by equipment conditions and cannot directly use tire changers to disassemble the hub with the motor. Repair personnel can only use relatively primitive and inefficient manual disassembly methods, which undoubtedly further prolongs the repair time, leading to a significant increase in repair costs and causing great inconvenience to electric vehicle users.

[0004] From the perspective of motor performance and applicability, the design of traditional hub motors has significant shortcomings in terms of motor cable exit space and installation opening size. The lack of proper planning between the motor cable exit position and the hub mounting structure easily leads to situations where the distance between the motor cable and the hub rotation is too close, even causing friction. This not only affects the normal operation of the motor but also poses safety hazards. Furthermore, the inflexible installation opening size results in poor versatility across different vehicle models, limiting its widespread application in the electric vehicle market and increasing the R&D and production costs for electric vehicle manufacturers.

[0005] With the rapid development of the electric vehicle market, users have increasingly higher requirements for the ease of maintenance, motor performance, and versatility of electric vehicles. Existing traditional hub motor structures can no longer meet market demands. Therefore, developing a quick-release hub motor structure that allows for efficient disassembly of the hub without removing motor wiring and other vehicle components, while optimizing motor wiring space and installation opening dimensions, is urgently needed. This is of significant practical importance for improving the overall performance of electric vehicles, reducing maintenance costs, and expanding market applications. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a quick-release hub motor structure.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A quick-release hub motor structure includes a motor housing composed of a motor end cover and a motor disc brake end cover;

[0009] The motor mounting shaft that penetrates the motor housing;

[0010] The motor stator is fixed inside the motor housing;

[0011] Enamelled wire motor windings wound around the motor stator;

[0012] The motor magnet is installed on the motor magnetic guide steel ring, which is connected to the motor rotor, and the motor rotor is mounted on the motor fixed shaft;

[0013] A motor Hall effect sensor installed inside the motor housing to detect the position of the motor rotor;

[0014] Disc brake disc mounted on the motor housing;

[0015] Brake calipers mounted on the motor housing and used in conjunction with disc brake discs;

[0016] The motor disc brake end cover has a motor split hub on its side wall. The motor split hub is fixed to the side of the motor disc brake end cover by hub fixing screws passing through hub fixing screw holes.

[0017] The motor end cover has a motor shaft flange cable outlet seat at its center. The motor shaft flange cable outlet seat is used for the motor lead wires to pass through. The motor lead wires are led out from inside the motor, pass through the motor shaft flange cable outlet seat, and exit the motor housing.

[0018] Preferably, bearings are embedded in the shafts of both the motor end cover and the disc brake end cover.

[0019] Preferably, oil seals are installed on the outer side of the bearings.

[0020] Furthermore, when the motor fixed shaft and motor lead wires change with the motor power, they will not interfere with the fixed point of the motor split hub.

[0021] Furthermore, the motor hub is separated from the motor and fixed to the side of the original motor disc brake end cover on the motor housing with hub fixing screws. This fixing method avoids the motor outlet position, compresses the motor installation opening size, and utilizes the space between the disc brake disc, brake caliper and the inside of the motor housing.

[0022] The beneficial effects of this utility model are as follows:

[0023] The benefits of this quick-release hub motor structure are mainly reflected in three aspects. First, it significantly improves maintenance convenience. Separating the hub from the motor simplifies the maintenance process and ensures compatibility with common tire changers, reducing maintenance difficulty and cost. Second, it optimizes motor performance by optimizing the installation opening dimensions to avoid cable friction and interference, improving the motor's versatility, flexibility, and stability. Third, it enhances compatibility, adapting to various vehicle models and hub sizes, reducing manufacturers' R&D and production costs, and meeting diverse market demands.

[0024] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0025] Figure 1 This is a detailed internal structural diagram of a quick-release hub motor structure proposed in this utility model.

[0026] Figure 2 For the present utility model Figure 1 A magnified view of the partial structure at point A (the way the wheel hub and disc brake end cap are fixed).

[0027] In the diagram: 1. Motor end cover; 2. Motor disc brake end cover; 3. Motor fixed shaft; 4. Motor stator; 5. Motor Hall effect sensor; 6. Motor magnetic steel ring; 7. Motor magnet; 8. Hub fixing screw hole; 9. Hub fixing screw; 10. Bearing; 11. Oil seal; 12. Disc brake disc; 13. Motor split hub; 14. Brake caliper; 15. Motor shaft flange cable outlet; 16. Motor lead wire; 17. Enamelled wire motor winding. Detailed Implementation

[0028] 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.

[0029] Example 1, referring to Figures 1 to 2 A quick-release hub motor structure includes a motor housing composed of a motor end cover 1 and a motor disc brake end cover 2.

[0030] Motor mounting shaft 3 that penetrates the motor housing;

[0031] The motor stator 4 is fixed inside the motor housing;

[0032] Enamelled wire motor winding 17 wound around motor stator 4;

[0033] The motor magnet 7 is installed on the motor magnetic guide steel ring 6. The motor magnetic guide steel ring 6 is connected to the motor rotor. The motor rotor is mounted on the motor fixed shaft 3.

[0034] A motor Hall effect sensor 5 is installed inside the motor housing to detect the position of the motor rotor.

[0035] Disc brake 12 mounted on the motor housing;

[0036] A brake caliper 14 is installed on the motor housing and cooperates with the disc brake disc 12. The motor disc brake end cover 2 has a motor split hub 13 on its side wall. The motor split hub 13 is fixed to the side of the motor disc brake end cover 2 by passing through the hub fixing screw hole 8 through the hub fixing screw 9.

[0037] The motor end cover 1 has a motor shaft flange outlet seat 15 at its center. The motor shaft flange outlet seat 15 is used for the motor lead wire 16 to pass through. The motor lead wire 16 is led out from inside the motor and passes through the motor shaft flange outlet seat 15 to exit the motor housing.

[0038] In this embodiment, bearings 10 are embedded in the shafts of both the motor end cover 1 and the motor disc brake end cover 2. Oil seals 11 are installed on the outer side of the bearings 10. When the motor fixed shaft 3 and the motor lead wire 16 change with the change of motor power, they will not interfere with the fixing point of the motor split hub 13. The motor split hub 13 is separated from the motor and fixed to the side of the motor housing where the original motor disc brake end cover is located by the hub fixing screw 9. This fixing method avoids the motor lead wire position, compresses the motor installation opening size, and utilizes the disc brake disc 12, brake caliper 14 and the inner space of the motor housing.

[0039] The working principle of this embodiment:

[0040] The motor mounting shaft 3 passes through the motor housing, which is composed of the motor end cover 1 and the motor disc brake end cover 2, and serves to support the entire motor structure. The motor stator 4 is fixed inside the motor housing, and the enameled wire motor winding 17 is wound around the motor stator 4. When an external power source energizes the enameled wire motor winding 17 through the motor lead wire 16, an alternating magnetic field is generated.

[0041] The motor magnet 7 is mounted on the motor magnetic guide ring 6, which is connected to the motor rotor. The motor rotor is mounted on the motor fixed shaft 3. The alternating magnetic field generated by the stator interacts with the magnetic field of the motor magnet 7, and according to the principle of electromagnetic induction, an electromagnetic force is generated to drive the motor rotor to rotate around the motor fixed shaft 3.

[0042] Motor control signal feedback

[0043] The Hall effect sensor 5 is installed inside the motor housing near the motor rotor to detect the rotor's position. The Hall effect sensor 5 feeds back the detected rotor position signal to the motor controller. Based on these signals, the controller precisely controls the energizing sequence and current magnitude of the enameled wire motor windings 17, thereby achieving precise control of the motor's speed and torque and ensuring stable motor operation.

[0044] When the driver needs to brake the electric vehicle, he operates the braking system to engage the brake caliper 14. The disc brake disc 12 is mounted on the motor housing, and the brake caliper 14 is mounted on the motor housing at the position where it mates with the disc brake disc 12.

[0045] Upon receiving a braking signal, the brake caliper 14 uses hydraulic or mechanical means to tightly clamp the brake disc 12 with its friction pads. Since the brake disc 12 is connected to the motor rotor via the motor hub 13, when the brake disc 12 is subjected to the friction force of the brake caliper 14, it will prevent the motor rotor from rotating, thereby achieving braking of the electric vehicle.

[0046] Wheel hub quick-release principle

[0047] The motor-split hub 13 is separated from the motor and fixed to the side of the motor housing where the original motor disc brake end cover is located by hub fixing screws 9 passing through hub fixing screw holes 8. This design cleverly avoids the motor cable outlet position and compresses the motor installation opening size to the limit. By utilizing the space between the disc brake disc 12, brake caliper 14 and the inside of the motor housing, the thickness space occupied by the separation of the hub and motor, hub fixing and screws is reduced, and friction between the hub and the cable outlet is avoided when the hub rotates.

[0048] The split-type motor hub 13 is structurally compatible with common tire changer equipment on the market. When tire repair or replacement is needed, simply remove the hub fixing bolts 9 to detach the split-type motor hub 13 from the motor housing. Then, the tire can be removed and installed using the tire changer without requiring modification or upgrades to the tire changer, greatly improving repair efficiency and reducing repair costs.

[0049] The motor-split wheel hub 13 can be quickly matched with different electric vehicle models and wheel hub sizes. When producing different models, electric vehicle manufacturers only need to replace the corresponding motor-split wheel hub 13 according to the model requirements to achieve rapid matching between the wheel hub motor and different models, increasing the compatibility and versatility of the wheel hub motor and reducing research and development and production costs.

[0050] 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 quick-release hub motor structure, comprising a motor housing composed of a motor end cover (1) and a motor disc brake end cover (2); Motor fixing shaft (3) passing through the motor housing; The motor stator (4) is fixed inside the motor housing; Enamelled wire motor winding (17) wound on the motor stator (4); A motor magnet (7) is installed on the motor magnetic guide steel ring (6), the motor magnetic guide steel ring (6) is connected to the motor rotor, and the motor rotor is mounted on the motor fixed shaft (3); A motor Hall sensor (5) is installed inside the motor housing to detect the position of the motor rotor. Disc brake disc (12) is mounted on the motor housing. Brake caliper (14) mounted on the motor housing and cooperating with the disc brake disc (12); Its features are: The motor disc brake end cover (2) has a motor split hub (13) on its side wall. The motor split hub (13) is fixed to the side of the motor disc brake end cover (2) by passing through the hub fixing screw hole (8) with the hub fixing screw (9). The motor end cover (1) is provided with a motor shaft flange outlet seat (15) at the center. The motor shaft flange outlet seat (15) is used for the motor lead wire (16) to pass through. The motor lead wire (16) is led out from inside the motor and passes through the motor shaft flange outlet seat (15) to exit the motor housing.

2. The quick-release hub motor structure according to claim 1, characterized in that, The motor end cover (1) and the motor disc brake end cover (2) are both fitted with bearings (10) on their shafts.

3. The quick-release hub motor structure according to claim 2, characterized in that, Oil seals (11) are installed on the outer side of each bearing (10).

4. The quick-release hub motor structure according to claim 1, characterized in that, When the motor fixed shaft (3) and motor lead wire (16) change with the change of motor power, they will not interfere with the fixed point of the motor split hub (13).

5. The quick-release hub motor structure according to claim 1, characterized in that, The motor split hub (13) is separated from the motor and fixed to the side of the motor disc brake end cover (2) of the motor housing by the hub fixing screw (9). This fixing method avoids the motor outlet position, compresses the motor installation opening size, and utilizes the disc brake disc (12), brake caliper (14) and the inner space of the motor housing.

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