Hub motor capable of being provided with brake pad

Abstract

The utility model provides a wheel hub motor capable of installing a brake pad, which comprises a tire, a wheel hub and a motor, the wheel hub is arranged on the inner side of the tire, the motor is arranged on the inner side of the wheel hub, the motor comprises a motor body, a motor shaft arranged in the motor body and motor shells symmetrically arranged on the two sides of the motor body, and the wheel hub is arranged on the inner side of the motor body. The two ends of the motor shaft are symmetrically connected with hub shells on the two sides of the hub in a sleeving mode respectively, the motor shaft is fixedly connected with the hub shells, the hub shells are rotationally connected with the motor shell, a bearing is fixedly installed on the outer ring of the motor shaft in a sleeving mode, and protrusions are distributed on the outer surface of the bearing in a circumferential array mode. A plurality of protrusions are arranged on the outer surface of the bearing, each protrusion is provided with a limiting ring perpendicular to the corresponding protrusion, a gap capable of being used for installing a brake pad used for braking the electric scooter is arranged between each limiting ring and the outer surface of the bearing, the brake pads can be stably installed on the limiting rings of the bearing, and space utilization of the hub motor is achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of electric scooters, and in particular relates to a hub motor with a brake pad that can be installed. Background Technology

[0002] Since their introduction to the public eye, electric scooters have been a favorite among teenagers. With the expanding user base, they have become a primary mode of transportation. As a means of transportation, electric scooters not only overcome the limitations of physical exertion during long-distance travel but also meet people's speed needs.

[0003] Electric scooters are controlled in the same way as traditional electric bicycles, making them easy for riders to learn. They are equipped with detachable and foldable seats and have a simpler structure, smaller wheels, and are lighter and more convenient than traditional electric bicycles, saving a lot of social resources. In recent years, lithium battery electric scooters have developed rapidly, giving rise to new demands and trends.

[0004] Electric scooters use two types of braking systems: hub brakes and disc brakes. Disc brakes involve mounting the brake pads on the outside of the tire, which are usually fixed to the brake disc. While this makes it easier to remove, inspect, and replace the disc, it still requires space on the electric scooter.

[0005] Therefore, there is a need for a hub motor that allows for easy installation of brake pads. Utility Model Content

[0006] The main objective of this invention is to provide a hub motor that can be fitted with brake pads, addressing the shortcomings of existing technologies.

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

[0008] A hub motor with mountable brake pads includes a tire, a hub, and a motor. The hub is located inside the tire, and the motor is located inside the hub. The motor includes a motor body, a motor shaft located inside the motor body, and motor housings symmetrically arranged on both sides of the motor body. The two ends of the motor shaft are symmetrically fitted onto the two hub housings on both sides of the hub, and the motor shaft is fixedly connected to the hub housings. The hub housings are rotatably connected to the motor housings. A bearing is fixedly fitted onto the outer ring of the motor shaft. The outer surface of the bearing has a circumferential array of protrusions. Each protrusion is fitted with a limiting ring perpendicular to the protrusion. A spacing is provided between the limiting ring and the outer surface of the bearing for mounting brake pads for braking electric scooters.

[0009] As a preferred embodiment of the hub motor with installable brake pads described in this utility model, the brake pads are provided with a circumferential array of sleeve holes that correspond to and cooperate with the limiting ring.

[0010] As a preferred embodiment of the hub motor with installable brake pads described in this utility model, the distance between the limiting ring and the outer surface of the bearing is the same as the thickness of the brake pad.

[0011] As a preferred embodiment of the hub motor with installable brake pads described in this utility model, a groove is provided between two adjacent sleeve holes on the brake pad, and the groove can abut against the protrusion.

[0012] As a preferred embodiment of the hub motor with mountable brake pads described in this utility model, the center of the brake pad is hollow, and the brake pad can pass through the motor shaft and be mounted on the bearing.

[0013] As a preferred embodiment of the hub motor with installable brake pads described in this utility model, the end cover of the motor housing is convex outward, and the spokes on the end cover are distributed outward in a fan-shaped pattern.

[0014] As a preferred embodiment of the hub motor with installable brake pads described in this utility model, heat dissipation holes are provided on the inner side of the spokes.

[0015] Compared with the prior art, the present invention will have at least the following beneficial effects:

[0016] In this invention, the brake pads can be securely mounted on the bearing's limiting ring, thus maximizing the space utilization of the hub motor. The end cover of the motor housing protrudes outward, and the spokes on the end cover are distributed outward in a fan-shaped pattern. During the electric scooter's operation, the rotating spokes generate wind, which can dissipate heat from the motor, maintain the motor's stable performance, and extend the hub motor's service life. The heat dissipation holes facilitate the removal of heat from the inside of the motor. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort, wherein:

[0018] Figure 1 This is a schematic diagram of the hub motor with mountable brake pads according to the present invention;

[0019] Figure 2This is an exploded view of the hub motor with installable brake pads according to the present invention.

[0020] Figure 3 This is a side sectional view of the hub motor with mountable brake pads according to the present invention.

[0021] Figure 4 This is a front view of the brake pad-less device that can be fitted with brake pads according to this utility model.

[0022] The reference numerals in the figures include:

[0023] 1. Tire; 2. Hub; 3. Motor body; 4. Motor shaft; 5. Motor housing; 6. Stator; 7. Rotor; 8. Hub housing; 9. Bearing; 10. Protrusion; 11. Limiting ring; 12. Brake pad; 13. Sleeve hole; 14. Groove; 15. End cap; 16. Spoke; 17. Heat dissipation hole. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely exemplary embodiments of this utility model, and not the only embodiments.

[0025] like Figures 1 to 4 As shown, a hub motor with a brake pad can be installed includes a tire 1, a hub 2, and a motor. The hub 2 is located inside the tire 1, and the motor is located inside the hub 2. The motor includes a motor body 3, a motor shaft 4 located inside the motor body 3, and motor housings 5 ​​symmetrically arranged on both sides of the motor body 3. The motor also includes a stator 6 fixedly installed inside the motor body 3 and a rotor 7 fixedly fitted around the outer circumference of the motor shaft 4. The two ends of the motor shaft 4 are symmetrically fitted with the hub housings 8 on both sides of the hub 2, and the motor shaft 4 is fixedly connected to the hub housings 8. The hub housings 8 are rotatably connected to the motor housings 5. A bearing 9 is fixedly fitted on the outer ring of the motor shaft 4. The outer surface of the bearing 9 has a circumferential array of protrusions 10. Each protrusion 10 is equipped with a limiting ring 11 that is perpendicular to the protrusion 10. A distance is provided between the limiting ring 11 and the outer surface of the bearing 9 for installing a circular brake pad 12 for braking an electric scooter. The center of the brake pad 12 is hollow, and the brake pad 12 can pass through the motor shaft 4 and be installed on the bearing 9.

[0026] In this embodiment, the circular brake pad 12 of the electric scooter can be installed in the limiting ring 11 on the outer surface of the bearing 9 to realize the connection between the brake pad 12 and the motor of the hub 2.

[0027] Furthermore, the brake pad 12 is provided with a circumferential array of sleeve holes 13 that correspond to and cooperate with the limiting ring 11. When installing the brake pad 12, the brake pad 12 is inserted into the gap between the bearing 9 and the limiting ring 11, and the limiting ring 11 is fitted into the corresponding sleeve holes 13, so that the brake pad 12 is fixed on the bearing 9 of the wheel hub 2 motor. This design allows the limiting ring 11 on the bearing 9 of the wheel hub 2 motor to fix the brake pad 12, improving the space utilization of the wheel hub 2 motor of the electric scooter tire 1 and realizing the fixation of the brake pad 12 on the wheel hub 2 motor.

[0028] Furthermore, to enhance the fixing effect of the brake pad 12 on the bearing 9, the distance between the limiting ring 11 and the outer surface of the bearing 9 is set to be the same as the thickness of the brake pad 12. If the distance between the limiting ring 11 and the outer surface of the bearing 9 is less than the thickness of the brake pad 12, the electric scooter will squeeze the brake pad 12 during driving, resulting in damage to the braking performance of the brake pad 12. If the distance between the limiting ring 11 and the outer surface of the bearing 9 is greater than the thickness of the brake pad 12, the brake pad 12 will become loose during long-term driving of the electric scooter, affecting the braking performance of the electric scooter and posing a certain driving safety hazard to the user.

[0029] Furthermore, as mentioned above, the outer surface of the bearing 9 has a circumferential array of protrusions 10. To further enhance the fixing effect between the brake pad 12 and the bearing 9, a groove 14 is provided between two adjacent sleeve holes 13 on the brake pad 12. The groove 14 corresponds one-to-one with the protrusions 10 on the outer surface of the bearing 9 and abuts against them. Specifically, when the sleeve hole 13 on the brake pad 12 is connected to the corresponding limiting ring 11 on the bearing 9, the protrusions 10 and the groove 14 also abut against each other. This further enhances the effect of fixing the brake pad 12 to the bearing 9 and improves the stability of the brake pad 12.

[0030] Furthermore, the end cap 15 of the motor housing 5 is designed to protrude outwards, and the spokes 16 on the end cap 15 are distributed outwards in a fan-shaped pattern. When the electric scooter is in motion, the spokes 16 generate wind as they rotate, which can dissipate heat from the motor, maintain the stability of the motor's performance, and extend the motor's service life.

[0031] Furthermore, a heat dissipation hole 17 is provided on the inner side of the spoke 16, which facilitates the dissipation of heat from the inside of the motor through the heat dissipation hole 17.

[0032] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A hub motor with mountable brake pads, comprising a tire (1), a hub (2), and a motor, wherein the hub (2) is disposed inside the tire (1), and the motor is disposed inside the hub (2), characterized in that, The motor includes a motor body (3), a motor shaft (4) disposed inside the motor body (3), and motor housings (5) symmetrically disposed on both sides of the motor body (3). The two ends of the motor shaft (4) are respectively symmetrically sleeved on the two sides of the hub (2) and the motor shaft (4) is fixedly connected to the hub housing (8). The hub housing (8) is rotatably connected to the motor housing (5). A bearing (9) is fixedly sleeved on the outer ring of the motor shaft (4). The outer surface of the bearing (9) is circumferentially arrayed with protrusions (10). Each protrusion (10) is equipped with a limiting ring (11) perpendicular to the protrusion (10). A distance is provided between the limiting ring (11) and the outer surface of the bearing (9) for installing a brake pad (12) for braking an electric scooter.

2. The hub motor with mountable brake pads according to claim 1, characterized in that, The brake pad (12) is provided with a circumferential array of sleeve holes (13) that correspond to and cooperate with the limiting ring (11).

3. The hub motor with mountable brake pads according to claim 2, characterized in that, The distance between the limiting ring (11) and the outer surface of the bearing (9) is the same as the thickness of the brake pad (12).

4. The hub motor with mountable brake pads according to claim 3, characterized in that, A groove (14) is provided between two adjacent sleeve holes (13) on the brake pad (12), and the groove (14) can abut against the protrusion (10).

5. The hub motor with mountable brake pads according to claim 1, characterized in that, The center of the brake pad (12) is hollow, and the brake pad (12) can pass through the motor shaft (4) and be mounted on the bearing (9).

6. The hub motor with mountable brake pads according to claim 1, characterized in that, The end cap (15) of the motor housing (5) is convex outward, and the spokes (16) on the end cap (15) are distributed outward in a fan-shaped pattern.

7. The hub motor with mountable brake pads according to claim 6, characterized in that, The spokes (16) have heat dissipation holes (17) on their inner side.

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