Hub motor and electric bicycle

Abstract

The utility model relates to the technical field of electric bicycles, in particular to a hub motor and an electric bicycle, the hub motor comprises a mounting sleeve, the mounting sleeve is fixed on the outer wall of the motor, flange plates are fixed on the top surface and the bottom surface of the motor, and the flange plates are fixed on the mounting sleeve. A supporting ring is installed at the concentric position of the flange plate, a settling tank is formed between the supporting ring and the flange plate, and a plurality of supporting ribs are fixed to the upper portion of the settling tank. By arranging the mounting sleeve, the heightened flange plate and the supporting ribs, a ventilation channel is formed while stable mounting is achieved, heat flow accumulation is avoided, and the heat dissipation efficiency is improved; and by arranging the wavy top supporting part, the abutting strength can be enhanced, the installation reliability is improved, and the gas flow rate can be further increased.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycle technology, and more specifically, to a hub motor and an electric bicycle. Background Technology

[0002] The existing motor structure is already quite common. The application of hub motors not only saves installation space but also improves transmission efficiency. In actual use and process, related technologies use mounting brackets to directly install the motor on the inner wall of the hub. In order to save more space, the top and bottom surfaces of the motor are the mounting surfaces. After assembly, the mounting surfaces abut against the inner wall of the hub. This causes heat to accumulate easily when the hub motor is used continuously for a long time, which in turn affects the service life of the motor and its adjacent electrical components.

[0003] Therefore, it is necessary to provide a hub motor with overhead mounting. Utility Model Content

[0004] This utility model provides a hub motor and an electric bicycle to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model provides a hub motor, comprising: a mounting sleeve fixed to the outer wall of the motor; a flange fixed to the top and bottom surfaces of the motor; a support ring installed at a concentric position on the flange; a settling groove formed between the support ring and the flange; and multiple reinforcing ribs fixed above the settling groove.

[0006] Furthermore, one end of the reinforcing rib is fixed to the flange, and the other end is fixed to the support ring.

[0007] Furthermore, one side of the flange and one side of the support ring abut against the inner wall of the hub.

[0008] Furthermore, the reinforcing ribs sequentially include a bottom support portion, a middle portion, and a top support portion. The width of the bottom support portion gradually decreases in the direction away from the motor, and the top support portion is adapted to abut against the inner wall of the wheel hub.

[0009] Furthermore, the top support includes multiple contact points, which are arranged at equal intervals.

[0010] Furthermore, an arc-shaped groove is provided between two adjacent contact points, and after two adjacent reinforcing ribs abut against the inner wall of the hub, an air exchange channel is formed at the position of the arc-shaped groove.

[0011] Furthermore, the top support includes a support pad layer and a buffer pad layer.

[0012] Furthermore, the support pad layer, the bottom support portion, and the middle portion are all made of the same material.

[0013] Furthermore, the mounting sleeve includes a protrusion and a concave portion, with a concave portion formed between the two protrusions, and the protrusions are adapted to abut against the inner wall of the wheel hub.

[0014] This utility model also provides an electric bicycle, including the motor as described above.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] By setting up mounting sleeves, heightened flanges, and reinforcing ribs, stable installation is achieved while forming a ventilation channel, avoiding heat accumulation and improving heat dissipation efficiency.

[0017] By setting a wavy top support, the mutual strength can be enhanced, the installation reliability can be improved, and the gas flow rate can be further accelerated. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a perspective view of the preferred embodiment of a hub motor according to the present invention;

[0020] Figure 2 This is a perspective view of the preferred embodiment of the flange and reinforcing ribs of this utility model;

[0021] Figure 3 A perspective view of the preferred embodiment of the present invention with added reinforcing ribs;

[0022] Figure 4 This is a schematic diagram of the structure of this utility model with the reinforcing ribs abutting against the inner wall of the wheel hub.

[0023] Among them, 1. motor; 2. mounting sleeve; 21. protrusion; 22. concave part; 3. flange; 4. support ring; 5. reinforcing rib; 51. middle part; 52. bottom support part; 53. top support part; 54. contact point; 55. arc groove; 56. ventilation channel; 6. settling groove; 7. inner wall of hub. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0025] Please see Figure 1 and combined Figure 2 , Figure 1 This is a perspective view of the preferred embodiment of a hub motor according to the present invention; Figure 2This is a perspective view of the preferred embodiment of the flange and reinforcing ribs of this utility model. Figures 1 to 2 As shown, at least one embodiment provides a hub motor, including: a mounting sleeve 2, which is fixed on the outer wall of the motor 1. The mounting sleeve 2 is used to abut against and fix itself to the inner wall of the hub. Specifically, the mounting sleeve 2 includes a protrusion 21 and a concave portion 22. A concave portion 22 is formed between the two protrusions 21. The protrusions 21 are adapted to abut against the inner wall 7 of the hub. After abutting, there is a void area in the middle, which is conducive to heat dissipation. Furthermore, unlike flanges in related technologies, the flange in this embodiment is installed higher than the mounting surface of the motor 1. It should be further explained that flanges 3 are also fixed to the top and bottom surfaces of the motor 1. A support ring 4 is installed concentrically on flange 3, forming a settling groove 6 between the support ring 4 and flange 3. The settling groove 6 is a groove with the mounting surface of the motor 1 as its bottom. The presence of the settling groove 6 not only creates a heat exchange zone but also prevents large-area contact between the inner wall of the hub and the mounting surface of the motor 1, effectively reducing damage to the motor 1 after a collision with the hub. To further enhance installation stability and improve heat dissipation efficiency, multiple reinforcing ribs 5 are fixed above the settling groove 6. One end of the reinforcing rib 5 is fixed to flange 3, and the other end is fixed to support ring 4. One side of flange 3 and one side of support ring 4 abut against the inner wall 7 of the hub. The reinforcing ribs 5 divide the settling groove 6 into multiple uniformly sized areas.

[0026] Please continue reading. Figure 2 and combined Figure 3 , Figure 3 This is a perspective view of the preferred embodiment of the present invention with added reinforcing ribs. Figures 2 to 3 As shown, the components of the reinforcing rib 5 are described in detail below. The reinforcing rib 5 is made of the same material as the flange 3. The reinforcing rib 5 includes a bottom support 52, a middle support 51 and a top support 53, which are located from the direction near the settling trough 6 to the direction near the inner wall 7 of the hub. The width of the bottom support 52 gradually decreases in the direction away from the motor 1. The bottom support 52 is widened and the sloped design enhances the support strength to prevent the reinforcing rib 5 from deforming or tilting. The top support 53 is suitable for abutting against the inner wall 7 of the hub and is wavy.

[0027] Please continue reading. Figure 3 and combined Figure 4 , Figure 4 This is a schematic diagram of the structure of this utility model with the supporting rib abutting against the inner wall of the wheel hub. Figures 3 to 4As shown, the top support 53 includes multiple contact points 54, which are arranged at equal intervals. An arc-shaped groove 55 is provided between two adjacent contact points 54. After two adjacent reinforcing ribs 5 abut against the inner wall 7 of the hub, a ventilation channel 56 is formed at the position of the arc-shaped groove 55. That is, the ventilation channel 56 is an intermittent ring, specifically multiple rings. The top support 53 includes a support pad layer and a buffer pad layer. The support pad layer, bottom support 52, and middle support 51 are all made of the same material as the flange 3. The buffer pad layer is made of an elastic material. Specifically, the wavy top support 53 can enhance the abutment strength, improve installation reliability, and accelerate gas flow.

[0028] This utility model also provides an electric bicycle, including the motor 1 as described above.

[0029] In summary, by setting the mounting sleeve 2, the raised flange 3, and the reinforcing rib 5, stable installation is achieved while forming an air exchange channel, avoiding heat accumulation and improving heat dissipation efficiency; by setting the wavy top support 53, the mutual strength can be enhanced, the installation reliability can be improved, and the gas flow rate can be further accelerated.

[0030] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A hub motor, characterized in that, include: Mounting sleeve (2) is fixed on the outer wall of the motor (1). The top and bottom surfaces of the motor (1) are also fixed with flanges (3). Support rings (4) are installed at the concentric positions of the flanges (3). A settling groove (6) is formed between the support rings (4) and the flanges (3). Multiple reinforcing ribs (5) are fixed above the settling groove (6).

2. The hub motor (1) as described in claim 1, characterized in that: One end of the reinforcing rib (5) is fixed to the flange (3), and the other end is fixed to the support ring (4).

3. A hub motor (1) as described in claim 2, characterized in that: One side of the flange (3) and one side of the support ring (4) abut against the inner wall (7) of the hub.

4. A hub motor (1) as described in claim 3, characterized in that: The reinforcing rib (5) includes a bottom support (52), a middle support (51) and a top support (53) in sequence. The width of the bottom support (52) gradually decreases in the direction away from the motor (1), and the top support (53) is adapted to abut against the inner wall (7) of the hub.

5. A hub motor (1) as described in claim 4, characterized in that: The top support (53) includes a plurality of contact points (54) arranged at equal intervals.

6. A hub motor (1) as described in claim 5, characterized in that: An arc-shaped groove (55) is provided between two adjacent contact points (54), and after two adjacent reinforcing ribs (5) abut against the inner wall (7) of the hub, an air exchange channel (56) is formed at the position of the arc-shaped groove (55).

7. A hub motor (1) as described in claim 4, characterized in that: The top support (53) includes a support pad layer and a buffer pad layer.

8. A hub motor (1) as described in claim 7, characterized in that: The supporting pad layer, the bottom support (52), and the middle part (51) are all made of the same material.

9. A hub motor (1) as described in claim 8, characterized in that: The mounting sleeve (2) includes a protrusion (21) and a concave portion (22), with a concave portion (22) formed between the two protrusions (21), and the protrusions (21) are adapted to abut against the inner wall (7) of the hub.

10. An electric bicycle, characterized in that: Including the motor (1) as described in any one of claims 1-9 above.

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