A high-efficiency heat dissipation hub for scooters

Abstract

The present application discloses an efficient heat dissipation wheel hub for scooters, including a wheel hub body, a barrel shaft unit, a mounting unit, a brake unit, a limit unit, a heat conduction unit, a clamping unit and a plurality of fixing bolts. The wheel hub of the present application is formed by combining multiple components to form an integral wheel hub. Some of the components are made of metal parts, and most of them are made of engineering plastic parts, thereby reducing costs, and when the wheel hub is damaged, the cost of replacing the components is lower. Multiple components are fixed in an integrated manner using multiple fixing bolts, and cooperate with positioning rods, strip protrusions, and strip grooves to achieve stable and precise cooperation of multiple components, thereby ensuring the strength of the wheel hub. It can also achieve efficient heat dissipation of the brake unit that cooperates with the brake, thereby ensuring efficient heat dissipation during continuous braking, thereby ensuring performance during continuous braking.

Description

Technical Field

[0001] The present invention relates to the technical field of wheel hubs, and more specifically, to a high-efficiency heat dissipation wheel hub for a scooter. Background Art

[0002] The wheel hub is a cylindrical component with the inner profile of the tire supporting the tire and the center mounted on the shaft. The main function of the wheel hub is to install the tire on the vehicle. As one of the important components of the vehicle, the performance and quality of the wheel hub directly affect the driving safety and comfort of the vehicle.

[0003] Many existing wheel hubs are cast in one piece, which results in a lot of metal material, leading to an increase in manufacturing costs. When local damage occurs, local repairs are often not possible, and the entire wheel hub needs to be replaced. This not only increases maintenance costs, but may also cause a waste of resources. In addition, when the wheel hub is braking, a lot of heat will be generated between the friction strip and the wheel hub. Especially for a closed brake system such as a drum brake, the heat accumulates inside the wheel hub, making it difficult to dissipate heat, which will affect the performance of continuous braking. A long-term high temperature environment will cause thermal damage to components such as brake drums and brake pads, accelerating their wear and aging process. Summary of the invention

[0004] The present invention aims to overcome the defects of the prior art and provide a high-efficiency heat dissipation hub for a scooter.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wheel hub, comprising a wheel hub body, a barrel shaft unit, a mounting unit, a brake unit, a limit unit, a heat conduction unit, a clamping unit and a plurality of fixing bolts; the wheel hub body comprises a rim, an outer ring portion, an inner ring portion, an annular connecting plate fixedly connected to the outer ring portion and the inner ring portion, and a plurality of spokes connecting the rim and the outer ring portion; the brake unit comprises a friction circumferential plate, a first annular plate connected to the friction circumferential plate, and a plurality of first heat conduction fins connected to the first annular plate; the heat conduction unit comprises a second annular plate, a plurality of second heat conduction fins connected to the second annular plate, and a plurality of arc-shaped heat dissipation ribs connected to the second annular plate; the annular connecting plate has a plurality of radial through grooves, and each radial through groove has one of the first heat conduction fins and one of the second heat conduction fins.

[0006] Furthermore, the outer ring portion and the inner ring portion are both in annular shape.

[0007] Furthermore, a bearing can be installed at the barrel shaft unit.

[0008] Furthermore, the barrel shaft unit is installed in the inner ring part, and the barrel shaft unit has a plurality of first strip-shaped protrusions and a plurality of positioning channels; the inner ring part has a plurality of first strip-shaped grooves matching with the first strip-shaped protrusions, and the annular connecting plate is connected with a plurality of first positioning plug rods located in the inner ring part, and the outer ring part includes a plurality of second strip-shaped protrusions and a plurality of groove parts, and the number of the second strip-shaped protrusions and the groove parts is equal, and the end of each second strip-shaped protrusion has a groove part, and the groove part has a through channel; the installation unit includes an inner circumferential plate, an outer circumferential plate, an annular convex plate connected to the inner circumferential plate, a plurality of second positioning plug rods matching with the positioning channels fixed at the annular convex plate, and a plurality of radial connecting rods connecting the inner circumferential plate and the outer circumferential plate, the outer ring part surrounds the outer circumferential plate, the outer circumferential plate surrounds the friction circumferential plate, and the outer circumferential plate The circumferential surface is provided with a plurality of second strip grooves that cooperate with the second strip protrusions; the first annular plate of the brake unit is provided with a plurality of radial receiving grooves that can accommodate the radial connecting rods, and the end of the friction circumferential plate is provided with a plurality of positioning notches; the limiting unit includes a limiting ring, an abutting ring connected to the limiting ring and capable of abutting the end of the friction circumferential plate, and a plurality of positioning protrusions connected to the abutting ring and cooperating with the positioning notches, and the limiting ring is provided with a plurality of arc grooves; the clamping unit includes an inner annular portion, an outer annular portion, a plurality of radial connecting plates connecting the inner annular portion and the outer annular portion, and a plurality of fixed insert rods fixedly connected to the outer annular portion and capable of being inserted into the through channel, and the fixed insert rods have threaded holes; the fixing bolt has a nut and a stud that cooperates with the threaded hole, and the nut abuts the limiting ring and the end of the groove portion.

[0009] Thus, the limiting unit and the clamping unit are fixed by bolts, and the brake unit, the mounting unit, the hub body and the heat conducting unit therebetween are all positioned and installed.

[0010] Furthermore, the first annular plate of the heat conducting unit is provided with a plurality of groups of radial limiting ribs, each group of radial limiting ribs has two radial limiting ribs, and each radial connecting plate is located between two radial limiting ribs of a group of radial limiting ribs.

[0011] Furthermore, the number of the fixing bolts, arc-shaped grooves, groove portions, through channels, fixing rods, second strip protrusions and second strip grooves is 16 and are distributed in a circular shape with equal intervals; the number of the first strip protrusions, the first strip grooves, the positioning channels, the first positioning rods and the second positioning rods is 8; the number of the first thermal fins, the second thermal fins and the radial through grooves is 32.

[0012] Furthermore, the plurality of arc-shaped heat dissipating ribs are divided into a plurality of concentric circles; the first heat-conducting fin and the second heat-conducting fin in each radial through groove abut against each other.

[0013] Furthermore, it also includes a shielding unit; the shielding unit includes an annular end plate, a plurality of shielding caps fixedly connected to the annular end plate, and a plurality of limiting hooks fixedly connected to the annular end plate, the limiting hooks include an L-shaped plate and a limiting protrusion fixedly connected to the L-shaped plate, and an arc-shaped anti-slip pad is fixed to the side of the shielding cap; the positioning protrusion includes a first positioning protrusion fixedly connected to the abutting ring and a second positioning protrusion fixedly connected to the first positioning protrusion, a first gap is provided between the first positioning protrusion and the end of the positioning recess, a second gap is provided between the second positioning protrusion and the end of the positioning recess, the L-shaped plate is inserted into the second gap, and the limiting protrusion is located in the first gap.

[0014] Therefore, the shielding unit can effectively shield and limit the fixing bolt, and the anti-slip pad makes the cooperation between the shielding cap and the groove part tighter, so that the position of the shielding unit is more stable.

[0015] Further, the L-shaped plate includes a first plate body connected to the annular end plate and a second plate body connected to the first plate body, and the second plate body is inserted into the second gap.

[0016] Furthermore, the hub body, the mounting unit, the limiting unit, the clamping unit and the shielding unit are all made of engineering plastics; and the barrel shaft unit, the braking unit and the heat conducting unit are made of metal materials.

[0017] Thereby, the barrel shaft unit, the brake unit and the heat conduction unit have higher strength and better heat conduction performance.

[0018] Furthermore, the hub body, the mounting unit, the limiting unit, the clamping unit and the shielding unit are all integrally injection-molded from engineering plastics.

[0019] Therefore, the production costs of the hub body, the mounting unit, the limiting unit, the clamping unit and the shielding unit are lower.

[0020] Furthermore, the wheel spokes are provided in five numbers and are distributed in a circular shape with equal intervals, and the wheel rim is provided with valve holes.

[0021] Beneficial Effects 1. The wheel hub of the present application is formed by combining multiple parts to form an integral wheel hub. Therefore, when a part of the wheel hub is damaged, only the part needs to be replaced instead of the entire wheel hub, which reduces maintenance costs and time.

[0022] 2. The wheel hub of the present application uses metal parts in some parts and engineering plastic parts in most parts, thereby reducing costs. When the wheel hub is damaged, the cost of replacing parts is lower.

[0023] 3. The wheel hub of the present application has multiple components that are fixed in an integrated manner using multiple fixing bolts, and cooperates with positioning rods, strip-shaped protrusions, and strip-shaped grooves to achieve stable and precise matching of multiple components, thereby ensuring the strength of the wheel hub.

[0024] 4. The wheel hub of the present application can achieve efficient heat dissipation of the brake unit that cooperates with the brake, thereby ensuring efficient heat dissipation during continuous braking, thereby ensuring performance during continuous braking. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the separation of the wheel hub components;

[0026] Figure 2 This is an enlarged view of area 1A;

[0027] Figure 3 This is an enlarged view of area 1B;

[0028] Figure 4 This is an enlarged view of the 1C area;

[0029] Figure 5 This is a magnified image of the 1D area;

[0030] Figure 6 A schematic diagram showing another perspective of separating the wheel hub components;

[0031] Figure 7 This is an enlarged view of area 2A;

[0032] Figure 8 This is an enlarged view of area 2B;

[0033] Fig. 9 This is an enlarged view of the 2C area;

[0034] Fig.10 This is a magnified image of the 2D area;

[0035] Fig.11 This is an enlarged view of the 2E region;

[0036] Fig.12 This is an enlarged view of the 2F area;

[0037] Fig.13 This is a schematic diagram for installing the barrel shaft unit;

[0038] Fig.14 A schematic diagram for installing the installation unit;

[0039] Fig.15 Schematic diagram for installing the brake unit and the heat transfer unit;

[0040] Fig.16 It is a schematic diagram of another perspective for installing the brake unit and the heat transfer unit;

[0041] Fig.17 This is a schematic diagram for installing the limit unit;

[0042] Fig.18 This is a schematic diagram for installing the fixing bolts;

[0043] Fig.19 This is a schematic diagram after the wheel hub is installed;

[0044] Fig. 20 This is a schematic diagram from another perspective after the wheel hub is installed.

[0045] Explanation of the reference numerals: hub body 1; rim 1.1; valve hole 1.1.1; outer ring portion 1.2; second strip protrusion 1.2.1; groove portion 1.2.2; through channel 1.2.3; inner ring portion 1.3; annular connecting plate 1.4; spoke 1.5; radial through groove 1.6; first strip groove 1.7; first positioning plug rod 1.8; cylindrical shaft unit 2; first strip protrusion 2.1; positioning channel 2.2; mounting unit 3; inner circumferential plate 3.1; outer circumferential plate 3.2; annular protrusion plate 3.3; second positioning plug rod 3.4; radial connecting rod 3.5; second strip groove 3.6; brake unit 4; friction circumferential plate 4.1; first annular plate 4 .2; first heat-conducting fin 4.3; radial accommodating groove 4.4; positioning notch 4.5; limiting unit 5; limiting ring 5.1; abutting ring 5.2; first positioning protrusion 5.3; second positioning protrusion 5.4; arc-shaped groove 5.5; heat-conducting unit 6; second annular plate 6.1; second heat-conducting fin 6.2; arc-shaped heat dissipating rib 6.3; radial limiting rib 6.4; clamping unit 7; inner annular portion 7.1; outer annular portion 7.2; radial connecting plate 7.3; fixing plug rod 7.4; threaded hole 7.4.1; fixing bolt 8; shielding unit 9; annular end plate 9.1; shielding cap 9.2; L-shaped plate 9.3; limiting protrusion 9.4; anti-slip pad 9.5. DETAILED DESCRIPTION

[0046] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0047] The present invention provides Figure 1-20The high-efficiency heat dissipation wheel hub for a scooter shown in the figure comprises a wheel hub body 1, a barrel shaft unit 2, a mounting unit 3, a brake unit 4, a limit unit 5, a heat conduction unit 6, a clamping unit 7 and a plurality of fixing bolts 8; the wheel hub body 1 comprises a rim 1.1, an outer ring portion 1.2, an inner ring portion 1.3, an annular connecting plate 1.4 fixedly connected to the outer ring portion 1.2 and the inner ring portion 1.3, and a plurality of spokes 1.5 connecting the wheel rim 1.1 and the outer ring portion 1.2; the brake unit 4 comprises a friction circumferential plate 4.1, a friction circumferential plate 4.2, a friction circumferential plate 4.3 and a friction circumferential plate 4.4; A first annular plate 4.2 connected to the wiping circular plate 4.1 and a plurality of first heat-conducting fins 4.3 connected to the first annular plate 4.2; the heat-conducting unit 6 includes a second annular plate 6.1, a plurality of second heat-conducting fins 6.2 connected to the second annular plate 6.1 and a plurality of arc-shaped heat-dissipating ribs 6.3 connected to the second annular plate 6.1; the annular connecting plate 1.4 has a plurality of radial through grooves 1.6, and each radial through groove 1.6 has one of the first heat-conducting fins 4.3 and one of the second heat-conducting fins 6.2.The cylindrical shaft unit 2 is installed in the inner ring part 1.3, and the cylindrical shaft unit 2 has a plurality of first strip protrusions 2.1 and a plurality of positioning channels 2.2; the inner ring part 1.3 has a plurality of first strip grooves 1.7 that match the first strip protrusions 2.1, and the annular connecting plate 1.4 is connected with a plurality of first positioning plug rods 1.8 located in the inner ring part 1.3, and the outer ring part 1.2 includes a plurality of second strip protrusions 1.2.1 and a plurality of groove parts 1.2.2, and the number of the second strip protrusions 1.2.1 and the groove parts 1.2.2 is equal, and each second strip protrusion 1.2.1 has a plurality of first positioning plug rods 1.8 located in the inner ring part 1.3. The end of 2.1 has a groove portion 1.2.2, and the groove portion 1.2.2 has a through channel 1.2.3; the mounting unit 3 includes an inner circumferential plate 3.1, an outer circumferential plate 3.2, an annular convex plate 3.3 connected to the inner circumferential plate, a plurality of second positioning rods 3.4 fixed to the annular convex plate 3.3 and cooperating with the positioning channel 2.2, and a plurality of radial connecting rods 3.5 connecting the inner circumferential plate 3.1 and the outer circumferential plate 3.2, the outer ring portion 1.2 surrounds the outer circumferential plate 3.2, the outer circumferential plate 3.2 surrounds the friction circumferential plate 4.1, the The outer circumferential surface of the outer circumferential plate 3.2 is provided with a plurality of second strip grooves 3.6 which cooperate with the second strip protrusions 1.2.1; the first annular plate 4.2 of the brake unit 4 is provided with a plurality of radial receiving grooves 4.4 which can accommodate the radial connecting rods 3.5, and the end of the friction circumferential plate 4.1 is provided with a plurality of positioning notches 4.5; the limiting unit 5 includes a limiting ring 5.1, an abutting ring 5.2 which is connected to the limiting ring 5.1 and can abut the end of the friction circumferential plate 4.1, and a plurality of positioning notches 4.5 which are connected to the abutting ring 5.2 and cooperate with the positioning notches 4.5. protrusion, the limiting ring 5.1 has a plurality of arc-shaped grooves 5.5; the clamping unit 7 includes an inner ring portion 7.1, an outer ring portion 7.2, a plurality of radial connecting plates 7.3 connecting the inner ring portion 7.1 and the outer ring portion 7.2, and a plurality of fixed plug rods 7.4 fixedly connected to the outer ring portion 7.2 and capable of being inserted into the through channel 1.2.3, the fixed plug rods 7.4 having threaded holes 7.4.1; the fixing bolt 8 has a nut and a stud matched with the threaded hole, the nut abuts the limiting ring 5.1 and the end of the groove portion 1.2.2.

[0048] The first annular plate 4.2 of the heat conducting unit 6 also has multiple groups of radial limiting ribs, each group of radial limiting ribs has two radial limiting ribs 6.4, and each radial connecting plate 7.3 is located between the two radial limiting ribs 6.4 of a group of radial limiting ribs. The number of the fixing bolts 8, the arc grooves 5.5, the groove portions 1.2.2, the through channels 1.2.3, the fixing plug rods 7.4, the second strip protrusions 1.2.1 and the second strip grooves 3.6 are all 16 and are distributed in an annular manner with equal spacing; the number of the first strip protrusions 2.1, the first strip grooves 1.7, the positioning channels 2.2, the first positioning plug rods 1.8 and the second positioning plug rods 3.4 are all 8; the number of the first heat conducting fins 4.3, the second heat conducting fins 6.2 and the radial through grooves 1.6 are all 32. The multiple arc-shaped heat dissipation ribs 6.3 are divided into multiple concentric circles; the first heat conducting fins 4.3 and the second heat conducting fins 6.2 in each radial through groove abut against each other. The wheel hub also includes a shielding unit 9; the shielding unit 9 includes an annular end plate 9.1, a plurality of shielding caps 9.2 fixedly connected to the annular end plate 9.1, and a plurality of limiting hooks fixedly connected to the annular end plate 9.1, the limiting hooks include an L-shaped plate 9.3 and a limiting protrusion 9.4 fixedly connected to the L-shaped plate 9.3, and an arc-shaped anti-slip pad 9.5 is fixed to the side of the shielding cap 9.2; the positioning protrusion includes a first positioning protrusion 5.3 fixedly connected to the abutting ring 5.2 and a second positioning protrusion 5.4 fixedly connected to the first positioning protrusion 5.3, a first gap is provided between the first positioning protrusion 5.3 and the end of the positioning recess 4.5, a second gap is provided between the second positioning protrusion 5.4 and the end of the positioning recess 4.5, the L-shaped plate 9.3 is inserted into the second gap, and the limiting protrusion 9.4 is located in the first gap. The hub body 1, the mounting unit 3, the limiting unit 5, the clamping unit 7 and the shielding unit 9 are all made of engineering plastics; the barrel unit 2, the brake unit 4 and the heat conducting unit 6 are made of metal materials. There are five spokes 1.5, which are distributed in an annular shape with equal spacing, and the rim 1.1 has a valve hole 1.1.1.

[0049] Working principle: The wheel hub, the wheel hub body, the mounting unit, the limit unit, the clamping unit and the shielding unit of the present application are all made of engineering plastics, and the barrel shaft unit, the brake unit and the heat conduction unit are all made of metal materials. A combination of multiple components is adopted, so that most of the components are made of engineering plastics in one-piece injection molding, thereby reducing production costs, and the replacement cost after component damage is also lower. In addition, the barrel shaft unit can be installed with bearings, the inner side of the brake unit can be used for friction with the brake pads of the drum brake to achieve braking, and the heat conduction unit contacts the brake unit to achieve heat conduction, so as to dissipate the heat in time.

[0050] During assembly, the first positioning rod and the second positioning rod can realize the positioning and installation of the barrel shaft unit; the first heat-conducting fin of the brake unit and the second heat-conducting fin of the heat-conducting unit can achieve mutual abutment for heat dissipation, so that the heat generated by the friction between the friction plate and the brake unit will be transferred to the second annular plate and the arc-shaped heat dissipation ribs through the first and second heat-conducting fins, so that the heat can be quickly dissipated. During fixing, in fact, the heat-conducting unit, the wheel hub body, the mounting unit, and the brake unit are clamped between the limit unit and the clamping unit through the fixing bolts, so that the clamping positioning and fixing of all components are realized through multiple fixing bolts, so that accurate matching between all components is achieved, thereby ensuring that the wheel hub forms a whole and has high strength. The number of fixing bolts is large, so as to ensure the stability of the installation connection. In addition, a shielding unit is also provided. During installation, after the fixing bolts are installed, multiple first gaps and multiple second gaps can be formed between the limit unit and the brake unit. By installing the shielding unit, during installation, the L-shaped plate will be squeezed and bent toward the axis direction, and will reset after reaching the position of the first gap and the second gap, so that the L-shaped plate is inserted into the second gap, and the limiting protrusion is inserted into the first gap, thereby realizing the installation of the shielding unit, and the shielding unit will not fall due to the limitation of multiple limiting protrusions. Therefore, the shielding cap corresponds to the fixing bolt one by one, so that due to the limitation of the shielding cap, even if some fixing bolts become loose during use, they are limited by the limitation of the shielding cap, and the fixing bolts will not fall.

[0051] Although the present invention has been illustrated and described with respect to the preferred embodiments, it will be appreciated by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. A high-efficiency heat dissipation hub for a scooter, characterized in that: It includes a hub body, a barrel unit, a mounting unit, a brake unit, a limit unit, a heat conduction unit, a clamping unit and a plurality of fixing bolts; the hub body includes a rim, an outer ring portion, an inner ring portion, an annular connecting plate fixedly connected to the outer ring portion and the inner ring portion, and a plurality of spokes connecting the rim and the outer ring portion; the brake unit includes a friction circumferential plate, a first annular plate connected to the friction circumferential plate, and a plurality of first heat conduction fins connected to the first annular plate; the heat conduction unit includes a second annular plate, a plurality of second heat conduction fins connected to the second annular plate, and a plurality of arc-shaped heat dissipation ribs connected to the second annular plate; the annular connecting plate has a plurality of radial through grooves, and each radial through groove has one of the first heat conduction fins and one of the second heat conduction fins; The cylindrical shaft unit is installed in the inner ring part, and the cylindrical shaft unit has a plurality of first strip-shaped protrusions and a plurality of positioning channels; the inner ring part has a plurality of first strip-shaped grooves matching with the first strip-shaped protrusions, and the annular connecting plate is connected with a plurality of first positioning plug rods located in the inner ring part, and the outer ring part includes a plurality of second strip-shaped protrusions and a plurality of groove parts, and the number of the second strip-shaped protrusions and the groove parts is equal, and the end of each second strip-shaped protrusion has a groove part, and the groove part has a through channel; the installation unit includes an inner circumferential plate, an outer circumferential plate, an annular convex plate connected to the inner circumferential plate, a plurality of second positioning plug rods matching with the positioning channels fixed at the annular convex plate, and a plurality of radial connecting rods connecting the inner circumferential plate and the outer circumferential plate, the outer ring part surrounds the outer circumferential plate, the outer circumferential plate surrounds the friction circumferential plate, and the outer circumference of the outer circumferential plate The surface of the brake unit is provided with a plurality of second strip grooves that cooperate with the second strip protrusions; the first annular plate of the brake unit is provided with a plurality of radial receiving grooves that can accommodate the radial connecting rods, and the end of the friction circumferential plate is provided with a plurality of positioning notches; the limiting unit includes a limiting ring, an abutting ring connected to the limiting ring and capable of abutting the end of the friction circumferential plate, and a plurality of positioning protrusions connected to the abutting ring and cooperating with the positioning notches, and the limiting ring is provided with a plurality of arc grooves; the clamping unit includes an inner annular portion, an outer annular portion, a plurality of radial connecting plates connecting the inner annular portion and the outer annular portion, and a plurality of fixed insert rods fixedly connected to the outer annular portion and capable of being inserted into the through channel, and the fixed insert rods have threaded holes; the fixing bolt has a nut and a stud that cooperates with the threaded hole, and the nut abuts the limiting ring and the end of the groove portion.

2. The high-efficiency heat dissipation hub for a scooter according to claim 1, characterized in that: The first annular plate of the heat conducting unit is further provided with a plurality of groups of radial limiting ribs, each group of radial limiting ribs has two radial limiting ribs, and each radial connecting plate is located between two radial limiting ribs of a group of radial limiting ribs.

3. The high-efficiency heat dissipation hub for a scooter according to claim 1, characterized in that: The number of the fixing bolts, arc-shaped grooves, groove portions, through channels, fixing rods, second strip protrusions and second strip grooves is 16 and are distributed in a circular shape with equal spacing; the number of the first strip protrusions, the first strip grooves, the positioning channels, the first positioning rods and the second positioning rods is 8; the number of the first heat-conducting fins, the second heat-conducting fins and the radial through grooves is 32.

4. The high-efficiency heat dissipation hub for a scooter according to claim 1, characterized in that: The plurality of arc-shaped heat dissipating ribs are divided into a plurality of concentric circles; the first heat-conducting fin and the second heat-conducting fin in each radial through groove abut against each other.

5. The high-efficiency heat dissipation hub for a scooter according to claim 1, characterized in that: It also includes a shielding unit; the shielding unit includes an annular end plate, a plurality of shielding caps fixedly connected to the annular end plate, and a plurality of limiting hooks fixedly connected to the annular end plate, the limiting hooks include an L-shaped plate and a limiting protrusion fixedly connected to the L-shaped plate, and an arc-shaped anti-slip pad is fixed to the side of the shielding cap; the positioning protrusion includes a first positioning protrusion fixedly connected to the abutting ring and a second positioning protrusion fixedly connected to the first positioning protrusion, a first gap is provided between the first positioning protrusion and the end of the positioning recess, a second gap is provided between the second positioning protrusion and the end of the positioning recess, the L-shaped plate is inserted into the second gap, and the limiting protrusion is located in the first gap.

6. The high-efficiency heat dissipation hub for a scooter according to claim 5, characterized in that: The hub body, the mounting unit, the limiting unit, the clamping unit and the shielding unit are all made of engineering plastics; the barrel shaft unit, the braking unit and the heat conducting unit are made of metal materials.

7. The high-efficiency heat dissipation hub for a scooter according to claim 1, characterized in that: The wheel spokes are 5 and are distributed in a circular shape with equal intervals. The wheel rim is provided with valve holes.

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