Lightweight hub of electric bicycle with built-in reinforcing rib

Abstract

The utility model discloses a built -in reinforcing rib's electric bicycle light weight wheel hub belongs to electric bicycle wheel hub technical field, including the rim, the middle part of rim inner wall is provided with the fixed ring, the inboard of fixed ring is provided with the wheel hub, and the spoke is evenly set between fixed ring and wheel hub, and the spoke is located at both sides of fixed ring, and the shape of spoke is the trapezoid of outside narrow inside wide, and the middle part fixed connection of wheel hub has the bearing, and the inner wall of spoke evenly is provided with the installation slot, and the installation slot is hinged in the inside and is connected with the reinforcing block, and the inner wall of spoke evenly is provided with the installation slot, and the installation slot is hinged in the inside and is connected with the reinforcing block. Built -in reinforcing rib's electric bicycle light weight wheel hub, through the spoke is the trapezoid of outside narrow inside wide, and the inner wall installation slot hinged reinforcing block, can disperse the stress and prevent deformation, and the first reinforcing ring of spoke both sides, second reinforcing ring is fixed through bolt and nut, and the multiple reinforcement is formed in cooperation with the inner wall spoke, and the reliability problem that the existing device leads to telescopic rod shock absorption is solved.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycle wheel hub technology, specifically a lightweight electric bicycle wheel hub with built-in reinforcing ribs. Background Technology

[0002] The wheel hub of an electric bicycle is one of the core components of the electric drive system. It integrates key components such as the motor, bearings, and braking system, and directly determines the vehicle's driving force, energy efficiency, and riding experience. Modern wheel hub motors typically use brushless DC technology, which has advantages such as high efficiency, low noise, and maintenance-free operation. They also support intelligent speed adjustment and energy recovery functions. High-quality wheel hubs use forged aluminum alloy shells, which balance lightweight and heat dissipation, and have a waterproof rating of IPX5 or higher, making them suitable for complex road conditions.

[0003] For example, patent CN114670580A discloses an electric bicycle hub, including a hub body, an inner hub bearing, a hub axle, a protective ring, and a tire. The inner hub bearing is located inside the hub body, and the hub axle is located inside the inner hub bearing. A shock-absorbing guide frame is located inside the hub axle. The protective ring is located on the outer layer of the inner hub bearing, and the tire is located on the outside of the hub body. The outer surface of the tire is covered with a wear-resistant layer. However, existing devices suffer from poor structural stability during use. Using a telescopic rod for shock absorption can cause the hub to deform easily under pressure, severely affecting the reliability of the overall structure. Furthermore, the overall structure is quite heavy, increasing the overall weight of the electric bicycle and significantly increasing energy consumption, thus reducing the vehicle's range and failing to meet users' needs for efficient travel.

[0004] Therefore, in order to solve such problems, we propose a lightweight wheel hub for electric bicycles with built-in reinforcing ribs. Summary of the Invention

[0005] The purpose of this invention is to provide a lightweight wheel hub for electric bicycles with built-in reinforcing ribs, in order to solve the problems mentioned in the background art. These problems include poor structural stability during use, the use of telescopic rods for shock absorption which leads to easy deformation of the wheel hub under pressure, seriously affecting the reliability of the overall structure, and the relatively heavy overall structure which not only increases the overall weight of the electric bicycle but also significantly increases energy consumption, thereby reducing the vehicle's range and failing to meet users' needs for efficient travel.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lightweight electric bicycle hub with built-in reinforcing ribs, including a rim, a fixing ring provided in the middle of the inner wall of the rim, a hub provided on the inner side of the fixing ring, spokes evenly provided between the fixing ring and the hub, and the spokes are located on both sides of the fixing ring, and the shape of the spokes is a trapezoid with a narrow outer edge and a wide inner edge, and a bearing is fixedly connected in the middle of the hub.

[0007] Furthermore, mounting grooves are evenly provided on the inner wall of the wheel spokes, and reinforcing blocks are engaged and connected within the mounting grooves.

[0008] Furthermore, a first reinforcing ring is provided on the outer wall of both sides of the spoke, and a second reinforcing ring is provided on the inner side of the first reinforcing ring on both sides of the spoke.

[0009] Furthermore, spokes are uniformly fixedly connected to the inner walls of the first reinforcing ring and the second reinforcing ring, and the ends of the spokes on the inner side of the second reinforcing ring are fixedly connected to the outer wall of the hub.

[0010] Furthermore, bolts are evenly and movably connected to the outer walls of the first reinforcing ring and the second reinforcing ring, and the bolts penetrate the spokes, with nuts threaded to the ends of the bolts.

[0011] Furthermore, an annular component is provided at the connection between the rim and the fixed ring. A locking block is fixedly connected to the inner walls on both sides of the annular component. A locking groove is provided on the inner walls of both the rim and the fixed ring, and the rim and the fixed ring are connected by the locking block and the locking groove.

[0012] Furthermore, heat dissipation grooves are provided on both outer walls of the rim, and the heat dissipation grooves on both sides of the rim are connected, and the shape of the heat dissipation grooves is arc-shaped.

[0013] Compared with the prior art, the beneficial effects of this utility model are: a lightweight wheel hub for electric bicycles with built-in reinforcing ribs, adopting a novel structural design, the specific details of which are as follows: (1) The lightweight wheel hub of the electric bicycle with built-in reinforcing ribs adopts a trapezoidal design with a narrow outer and wide inner spoke. The reinforcing blocks that are engaged in the mounting grooves on the inner wall can form the first line of reinforcement, which can effectively disperse the pressure on the wheel hub and reduce the possibility of deformation under pressure from the root. On this basis, the first reinforcing ring and the second reinforcing ring on both sides of the spoke are connected by bolts through the spoke and fastened with nuts. Together with the spokes that are evenly distributed on the inner wall of the two, a multi-dimensional reinforcement structure is constructed, which further enhances the overall anti-deformation ability and completely solves the problem of poor structural reliability caused by the existing device relying on telescopic rods to achieve shock absorption. At the same time, the rim and the fixed ring are connected by the precise engagement of the ring-shaped block and the corresponding slot. This design significantly improves the structural strength of the connection between the two, effectively reduces the risk of loosening, and makes the overall structure of the wheel hub more stable.

[0014] (2) The lightweight electric bicycle wheel hub with built-in reinforcing ribs has interconnected arc-shaped heat dissipation grooves on both sides of the outer wall of the rim. This design can guide the outside air to form a continuous airflow in the grooves when the wheel hub is working. The heat generated during the operation of the wheel hub is efficiently removed through air circulation, which significantly improves the heat dissipation efficiency. At the same time, the reasonable layout of the heat dissipation grooves reduces the amount of rim material used to achieve lightweighting, avoids the performance degradation of the wheel hub caused by heat accumulation, and effectively extends its service life.

[0015] Furthermore, the interconnected arc-shaped heat dissipation grooves on both sides of the rim achieve lightweighting of the wheel hub by reducing material usage, while ensuring that the structural strength of the rim is not affected. The lightweight wheel hub directly reduces the overall load on the electric bicycle, thereby lowering energy consumption and providing strong support for improving range, better meeting users' needs for efficient travel. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention; Figure 3 This is a schematic diagram of the exploded structure of this utility model; Figure 4 This is a three-dimensional schematic diagram of the wheel hub of this utility model; Figure 5 This is an exploded view of the wheel hub of this utility model; Figure 6 This is an exploded view of the spokes of the present invention; Figure 7 This is an exploded view of the wheel rim of this utility model.

[0017] In the diagram: 1. Rim; 11. Heat dissipation groove; 12. Fixing ring; 13. Spoke; 131. Mounting groove; 132. Reinforcing block; 14. Hub; 15. Bearing; 2. First reinforcing ring; 21. Second reinforcing ring; 22. Spoke; 23. Bolt; 231. Nut; 3. Ring component. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This utility model provides the following technical solution: a lightweight wheel hub for electric bicycles with built-in reinforcing ribs.

[0020] Example 1: A lightweight wheel hub for electric bicycles with built-in reinforcing ribs. The first reinforcing ring 2 and the second reinforcing ring 21 are fixed to the outer wall of the spoke 13 by bolts 23 and nuts 231, providing the first layer of reinforcement and preventing the overall structure from deforming due to gravity. The spokes 133 on both sides are then limited and fixed by reinforcing blocks 132 to prevent the overall structure from deforming under lateral impact force, thus preventing poor structural stability. Using telescopic rods to achieve shock absorption can cause the wheel hub 14 to deform easily under pressure, seriously affecting the reliability of the overall structure.

[0021] like Figure 1 - Figure 6As shown, a lightweight electric bicycle hub 14 with built-in reinforcing ribs includes a rim 1, which serves as the outer structure of the hub 14 and is connected to the spokes 13 via a fixing ring 12. The external force is transmitted to the hub 14 through the spokes 13. A fixing ring 12 is located in the middle of the inner wall of the rim 1, cooperating with the spokes 13 to connect the rim 1 and the hub 14, serving as an intermediate structure for force transmission. The hub 14 is located inside the fixing ring 12, serving as the central structure of the hub 14 and receiving the external force transmitted from the spokes 13. It is connected to the axle via a bearing 15. Spokes 11 are evenly distributed between the fixing ring 12 and the hub 14. 3. The spokes 13 are located on both sides of the fixed ring 12, and the spokes 13 are trapezoidal in shape, narrower on the outside and wider on the inside, which transmits the external force borne by the rim 1 to the hub 14. The trapezoidal design with a narrower outside and wider inside allows for a more uniform stress distribution and greatly improves the force transmission efficiency. A bearing 15 is fixedly connected to the middle of the hub 14 to realize the relative rotation between the hub 14 and the axle. The inner wall of the spokes 13 is evenly provided with mounting grooves 131 to provide mounting positions for the reinforcing blocks 132. The reinforcing blocks 132 are engaged in the mounting grooves 131 to form precise support and reinforcement for the spokes 13, which can effectively prevent the spokes 13 from being stressed. During deformation, spokes 22 are uniformly fixedly connected to the inner walls of the first reinforcing ring 2 and the second reinforcing ring 21, and the ends of the spokes 22 on the inner side of the second reinforcing ring 21 are fixedly connected to the outer wall of the hub 14, transmitting force from the reinforcing ring to the hub 14. Together with the spokes 13, they form a three-dimensional force network, significantly enhancing the overall resistance to deformation. Bolts 23 are uniformly movably connected to the outer walls of the first reinforcing ring 2 and the second reinforcing ring 21, and the bolts 23 penetrate the spokes 13. The ends of the bolts 23 are threaded with nuts 231. By passing through the spokes 13 and fastening with the nuts 231, the first... The strong connection between the reinforcing ring 2, the second reinforcing ring 21 and the spoke 13 ensures that the reinforcing ring does not loosen under stress. An annular part 3 is provided at the connection between the rim 1 and the fixed ring 12. The inner walls on both sides of the annular part 3 are fixedly connected with locking blocks. The inner walls of the rim 1 and the fixed ring 12 are provided with locking grooves. The rim 1 and the fixed ring 12 are connected by locking blocks and locking grooves. The precise locking of the locking blocks with the locking grooves of the rim 1 and the fixed ring 12 further enhances the stability of the connection between the rim 1 and the fixed ring 12, which can effectively prevent relative displacement during vehicle operation and ensure the overall structural stability of the hub 14.

[0022] Example 2: Unlike Example 1, ventilation and heat dissipation of the wheel rim 1 during operation are achieved through heat dissipation grooves 11 on the outer wall of the wheel rim 1. This allows outside air to flow within the heat dissipation grooves 11 on the wheel rim 1 during operation. Furthermore, the distribution of the heat dissipation grooves 11 on the wheel rim 1 achieves a lightweight overall structure, preventing the overall structure from being too thick and heavy. This would not only increase the overall weight of the electric bicycle but also significantly increase energy consumption, thereby reducing the vehicle's range and making it difficult to meet users' needs for efficient travel.

[0023] like Figure 7 As shown, heat dissipation grooves 11 are provided on both outer walls of the rim 1, and the heat dissipation grooves 11 on both sides of the rim 1 are connected. The heat dissipation grooves 11 are arc-shaped. When the hub 14 rotates, the arc-shaped heat dissipation grooves 11 can guide the airflow to circulate efficiently and quickly remove the heat generated by the hub 14 during operation, giving full play to the heat dissipation function. At the same time, this design reduces the amount of material used in the rim 1, which directly reduces the overall weight of the hub 14 without weakening the structural strength of the rim 1, and successfully achieves the goal of lightweighting. The bearing 15 in the middle of the hub 14 is the core rotating component. It achieves the relative rotation of the entire hub 14 and the electric bicycle body through its own rotation, which provides a key guarantee for the normal operation of the vehicle.

[0024] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lightweight wheel hub for electric bicycles with built-in reinforcing ribs, comprising a rim (1), characterized in that: A fixing ring (12) is provided in the middle of the inner wall of the rim (1). A hub (14) is provided on the inner side of the fixing ring (12). Spokes (13) are evenly arranged between the fixing ring (12) and the hub (14). The spokes (13) are located on both sides of the fixing ring (12). The spokes (13) are trapezoidal with a narrow outer edge and a wide inner edge. A bearing (15) is fixedly connected in the middle of the hub (14).

2. The lightweight wheel hub for electric bicycles with built-in reinforcing ribs according to claim 1, characterized in that: The inner wall of the spoke (13) is provided with mounting grooves (131) evenly distributed, and a reinforcing block (132) is engaged and connected in the mounting groove (131).

3. The lightweight wheel hub for electric bicycles with built-in reinforcing ribs according to claim 1, characterized in that: A first reinforcing ring (2) is provided on the outer wall of both sides of the spoke (13), and a second reinforcing ring (21) is provided on the inner side of the first reinforcing ring (2) on both sides of the spoke (13).

4. A lightweight electric bicycle wheel hub with built-in reinforcing ribs according to claim 3, characterized in that: Spokes (22) are uniformly fixedly connected to the inner walls of the first reinforcing ring (2) and the second reinforcing ring (21), and the ends of the spokes (22) on the inner side of the second reinforcing ring (21) are fixedly connected to the outer wall of the hub (14).

5. A lightweight wheel hub for electric bicycles with built-in reinforcing ribs according to claim 3, characterized in that: Bolts (23) are evenly and movably connected to the outer walls of the first reinforcing ring (2) and the second reinforcing ring (21), and the bolts (23) penetrate the spokes (13). The ends of the bolts (23) are threaded with nuts (231).

6. A lightweight wheel hub for electric bicycles with built-in reinforcing ribs according to claim 4, characterized in that: A ring-shaped part (3) is provided at the connection between the rim (1) and the fixed ring (12). A locking block is fixedly connected to the inner wall on both sides of the ring-shaped part (3). A slot is opened on the inner wall of both the rim (1) and the fixed ring (12), and the rim (1) and the fixed ring (12) are connected by the locking block and the slot.

7. A lightweight wheel hub for electric bicycles with built-in reinforcing ribs according to claim 1, characterized in that: Heat dissipation grooves (11) are provided on both outer walls of the rim (1), and the heat dissipation grooves (11) on both sides of the rim (1) are connected, and the heat dissipation grooves (11) are arc-shaped.

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