Hub for new energy automobile
The wheel hub design with ventilation holes and thermal layers addresses tire heat buildup, maintaining safe operating temperatures and enhancing durability through improved airflow and thermal management.
Patent Information
- Application Number
- CN202422494760.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-10-15
AI Technical Summary
During long-term driving, car tires generate heat due to friction, which leads to an increase in temperature, affects performance and increases the risk of tire bursts. The existing wheel hub design cannot effectively dissipate heat.
A new energy vehicle wheel hub is designed, ventilation holes are installed and nano-coated and glass fiber cotton are coated on its inner and outer walls. It is combined with anti-slip blocks to enhance heat dissipation and stability, and heat removal layers are installed on the inner and outer walls to prevent heat transfer.
Effectively reduce the temperature of the tire and brake system, keep it within the normal working range, prevent performance degradation and slippage caused by overheating, and extend the service life of the wheel hub.
Smart Images
Figure CN223100355U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to a wheel hub for a new energy vehicle, belonging to the technical field of tires. Background Art
[0002] During the long-term driving of an automobile, the tire constantly contacts and rubs against the road surface. This friction generates heat, and there is no time to dissipate it, resulting in a gradual increase in the tire temperature; furthermore, it will lead to a decline in tire performance, an increase in tire skidding, and the possibility of tire bursting in high-temperature weather.
[0003] A wheel hub is a cylindrical metal component that supports the inner contour of the tire and is centered on the axle; the design of the wheel hub affects the airflow around the tire. A good ventilation design can help dissipate heat, keep the tire and braking system within the normal operating temperature range, and prevent the decline in tire performance and skidding caused by overheating. Utility Model Content
[0004] In order to solve the above problems, the present application proposes a wheel hub for a new energy vehicle, which has a good ventilation design to help dissipate heat from the tire during the driving of the vehicle and keep the tire and braking system within the normal operating temperature range.
[0005] The specific technical solution of the present application is as follows:
[0006] The present application provides a wheel hub for a new energy vehicle. Ventilation holes are provided on the cylindrical side wall for supporting the inner contour of the tire, a first heat removal layer is provided on the upper surface of the wheel hub, and inner holes matching the ventilation holes are provided on the first heat removal layer; a second heat removal layer is provided on the inner wall of the ventilation holes;
[0007] Both the first heat removal layer and the second heat removal layer include a first nano-coating and a glass fiber cotton layer coated above the first nano-coating.
[0008] Optionally, the material of the first nano-coating is cellulose nano-material.
[0009] Optionally, the thickness of the first nano-coating is 2-4 mm; the thickness of the glass fiber cotton layer is 2-3 mm.
[0010] Optionally, there are several ventilation holes, which are evenly spaced along the circumferential direction of the wheel hub; the aperture size of the ventilation holes is 8-15 mm, and the distance between the ventilation holes is 2-5 cm.
[0011] Optionally, there are several ventilation holes, which are staggered along the circumferential direction of the wheel hub; the aperture size of the ventilation holes is 8-15 mm, and the distance between the ventilation holes is 3.5-6 cm.
[0012] Optionally, at least two anti-sliding blocks are vertically arranged on the edge of the ventilation hole along the height direction of the first heat removal layer, and one side of the anti-sliding block is tightly attached to the inner surface of the inner hole of the first heat removal layer; the height of the anti-sliding block is greater than or less than the thickness of the first heat removal layer.
[0013] Furthermore, the shape of the end of the anti-sliding block away from the ventilation hole is arc-shaped.
[0014] Furthermore, the anti-sliding blocks are evenly spaced along the circumferential direction of the ventilation hole.
[0015] Furthermore, the side wall of the anti-slip block is provided with raised particles.
[0016] Optionally, a groove is provided on the upper surface of the hub; an adhesive layer is provided on the inner wall of the groove; and a convex column cooperating with the adhesive layer is provided at the bottom of the first heat removal layer.
[0017] The beneficial effects of this application include but are not limited to:
[0018] 1. The wheel hub provided by the present application is provided with ventilation holes on the cylindrical sidewall for supporting the inner profile of the tire. When the vehicle is running, air will enter the wheel hub through the ventilation holes and contact the tire and the brake system; the air flow will take away the heat generated by the tire and the brake, thereby reducing their temperature. The upper surface of the wheel hub is provided with a first heat removal layer, which can block the heat transfer to the wheel hub from the heat generated by the continuous friction between the tire and the ground as much as possible, thereby avoiding a substantial temperature rise of the wheel hub.
[0019] A second heat removal layer is arranged on the inner wall of the ventilation hole, which can effectively block the heat transfer to the wheel hub itself when the heat passes through the ventilation hole, thereby preventing the wheel hub from being affected by high temperature.
[0020] 2. Furthermore, the thickness of the first nano-coating in the first heat removal layer is 2-4 mm; the thickness of the glass fiber cotton layer is 2-3 mm. The thickness setting can not only ensure the fixing effect of the wheel hub on the tire, but also achieve the maximum heat insulation and heat dissipation effect. The stability between the first heat removal layer and the wheel hub is enhanced in the horizontal direction.
[0021] 3. Furthermore, at least two anti-sliding blocks are vertically arranged at the edge of the ventilation hole along the height direction of the first heat removal layer, and one side of the anti-sliding block is tightly attached to the inner surface of the inner hole of the first heat removal layer; the height of the anti-sliding block is greater than or less than the thickness of the first heat removal layer. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0023] Figure 1 is a schematic structural diagram of the device of the present application;
[0024] Figure 2 is Figure 1 an enlarged view of the structure of part A in the device;
[0025] Figure 3 is Figure 1 an enlarged view of the partial structure in the device;
[0026] Figure 4 is a schematic structural diagram of a local component (the first heat removal layer) of the device of the present application.
[0027] List of components and reference numerals:
[0028] 1 Hub, 2 First heat removal layer, 201 First nano - coating, 202 Glass fiber cotton layer, 203 Inner hole, 3 Second heat removal layer, 4 Flow hole, 401 Anti - slip block. Detailed implementation manners
[0029] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail by way of examples in conjunction with the accompanying drawings of the specification.
[0030] In order to be able to more clearly understand the above - mentioned objects, features and advantages of the present application, the following will further describe the present application in detail in conjunction with the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0031] In the following description, many specific details are set forth in order to fully understand the present application. However, the present application can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.
[0032] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application.
[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more unless otherwise specifically defined.
[0034] In this application, unless otherwise clearly defined and limited, the terms such as "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0035] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the descriptions with reference to terms such as "an embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic descriptions of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0036] As a specific implementation manner, as Figure 1-2 shown in FIGS. 3 and 4. A wheel hub 1 for a new energy vehicle, the wheel hub 1 is provided with ventilation holes on the cylindrical side wall for supporting the inner profile of the tire, a first heat removal layer 2 is provided on the upper surface of the wheel hub 1, and an inner hole 203 matching the ventilation holes is provided on the first heat removal layer 2 (to completely expose the ventilation holes; the aperture size of the inner hole 203 is the same as that of the ventilation holes. Specifically, a bonding layer formed by coating an adhesive is provided at the bottom of the first heat removal layer 2 to realize the fitting connection between the first heat removal layer 2 and the upper surface of the wheel hub 1); a second heat removal layer 3 is provided on the inner wall of the ventilation holes;
[0037] The first heat removal layer 2 and the second heat removal layer 3 both include a first nano coating 201 (the first nano coating 201 made of cellulose nanomaterial is specifically used in this embodiment) and a glass fiber wool layer 202 (made of glass fiber wool material) coated on the first nano coating 201; the interior of the heat removal layer in this embodiment is bonded, and specifically the bottom of the first nano coating 201 and the bottom of the glass fiber wool layer 202 are both provided with an adhesive layer coated with an adhesive to sequentially realize the bonding connection between the first nano coating 201 and the upper surface of the hub 1, and the bonding connection between the glass fiber wool layer 202 and the first nano coating 201. The materials and material distribution of the first heat removal layer 2 and the second heat removal layer 3 are the same.
[0038] In this embodiment, the thickness of the first nano coating 201 is 3 mm; the thickness of the glass fiber wool layer 202 is 2 mm, and the thickness of the hub 1 is 30 mm. The aperture size of the ventilation holes is 10 mm, and the spacing between the ventilation holes is 5 cm. The inner diameter of the hub 1 is 45 cm.
[0039] The thickness of the second heat removal layer 3 is 2 mm; (the thickness of the first nano coating 201 is 1.5 mm, and the thickness of the glass fiber wool layer is 0.5 mm.)
[0040] In specific use: the ventilation holes on the wheel hub 1 allow air to flow freely between the inside and outside of the wheel hub 1. When the vehicle is running, air will enter the wheel hub 1 through the ventilation holes and come into contact with the tire and brake system; the air flow will take away the heat generated by the tire and brake, thereby reducing their temperature. The presence of the ventilation holes allows air to flow quickly through the tire surface, taking away heat and keeping the tire working within a suitable temperature range.
[0041] Furthermore, the setting of the first heat removal layer 2 can block the heat transfer from the tire to the wheel hub 1 as much as possible due to the continuous friction between the tire and the ground, thereby avoiding a substantial temperature rise of the wheel hub 1. The potential safety hazard caused by the temperature rise in the tire under high-temperature and high-speed driving can be reduced. The service life of the wheel hub 1 can also be extended. In this embodiment, the inner hole 203 of the first heat removal layer 2 is set to allow the ventilation hole to be fully exposed. Moreover, the thickness of the inner hole 203 will not inhibit the heat dissipation of the ventilation hole. At the same time, the existence of the inner hole 203 with the same diameter as the ventilation hole actually extends the length path of the ventilation channel. The weak noise generated when the air flows in the channel will gradually weaken or even disappear as the length of the channel increases.
[0042] The second heat removal layer 3 can effectively block the heat transfer to the hub 1 itself when the heat passes through the ventilation holes, thereby preventing the hub 1 from being affected by high temperature.
[0043] Furthermore, the nano - coating has an extremely high specific surface area, which enables it to effectively reflect and scatter heat. Its nano - scale structure can form a large number of tiny pores and interfaces, and these pores and interfaces can hinder the conduction of heat, thus playing a role in heat insulation.
[0044] The fiberglass wool layer 202 has a very low thermal conductivity and can effectively prevent the conduction of heat. The fiberglass wool is composed of countless fine glass fibers, and there are a large number of air gaps between these fibers. The thermal conductivity of air is very low, so that the fiberglass wool layer 202 has good heat insulation performance. Setting the fiberglass wool layer 202 above the nano - coating can play the role of heat insulation and heat dissipation to the greatest extent.
[0045] As a preferred embodiment, the material of the first nano - coating 201 is cellulose nano - material.
[0046] As a preferred embodiment, the thickness of the first nano - coating 201 in the first heat - removing layer 2 is 2 - 4 mm; the thickness of the fiberglass wool layer 202 is 2 - 3 mm. Such a thickness setting can not only ensure the fixing effect of the wheel hub 1 on the tire, but also play the role of heat insulation and heat dissipation to the greatest extent.
[0047] As a preferred embodiment, there are several ventilation holes, which are evenly spaced along the circumferential direction of the wheel hub 1; the aperture size of the ventilation holes is 8 - 15 mm, and the spacing between the ventilation holes is 2 - 5 cm. It can ensure uniform heat dissipation in all directions of the space, which can not only ensure the bearing capacity of the wheel hub 1 but also effectively ventilate and dissipate heat to the safe temperature range.
[0048] As a preferred embodiment, there are several ventilation holes, which are staggered along the circumferential direction of the wheel hub 1; the aperture size of the ventilation holes is 8 - 15 mm, and the spacing between the ventilation holes is 3.5 - 6 cm. It can ensure uniform heat dissipation in all directions of the space, which can not only ensure the bearing capacity of the wheel hub 1 but also effectively ventilate and dissipate heat to the safe temperature range. The staggered setting can also effectively meet the high - heat - dissipation requirements of vehicles.
[0049] As a preferred embodiment, at least 2 anti - slip blocks 401 (the material of the anti - slip blocks 401 is the same as that of the wheel hub 1) are vertically arranged along the height direction of the first heat - removing layer 2 at the edge of the ventilation hole, and one side of the anti - slip block 401 is closely attached to the inner surface of the inner hole 203 of the first heat - removing layer 2; the height of the anti - slip block 401 is greater than or less than the thickness of the first heat - removing layer 2. It enhances the stability between the first heat - removing layer 2 and the wheel hub 1 in the horizontal direction.
[0050] Furthermore, the shape of the end of the anti - slip block 401 far from the ventilation hole is arc - shaped; it can enhance the stability of the wheel hub 1 on bumpy roads and increase the bearing capacity of the wheel hub 1 on the tire during driving.
[0051] Further, the anti-slip blocks 401 are uniformly spaced along the circumferential direction of the ventilation holes, so that the blocking force of the anti-slip blocks 401 on the first heat removal layer 2 is evenly distributed, and the effect is more significant.
[0052] Further, the side wall of the anti-slip block 401 is provided with protruding particles to increase the friction force with the first heat removal layer 2.
[0053] As a preferred embodiment, a groove is provided on the upper surface of the hub 1, an adhesive layer is provided on the inner wall of the groove, and a convex column matching the adhesive layer is provided at the bottom of the first heat removal layer 2 to further enhance the stability of the first heat removal layer 2.
[0054] Each embodiment in this specification is described in a progressive manner. The same or similar parts among the embodiments can be referred to each other, and the differences between each embodiment and other embodiments are emphasized. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.
[0055] The above are only the embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.
Claims
1. A wheel hub for a new energy vehicle, characterized in that, The hub is provided with ventilation holes on the cylindrical side wall for supporting the inner profile of the tire, a first heat removal layer is provided on the upper surface of the hub, and an inner hole matching the ventilation holes is provided on the first heat removal layer; a second heat removal layer is provided on the inner wall of the ventilation holes; Both the first heat removal layer and the second heat removal layer include a first nano-coating and a glass fiber cotton layer coated above the first nano-coating.
2. The hub according to claim 1, characterized in that The material of the first nano-coating is cellulose nano-material.
3. The hub according to claim 1, characterized in that, In the first heat removal layer, the thickness of the first nano-coating is 2-4 mm; the thickness of the glass fiber cotton layer is 2-3 mm.
4. The hub according to claim 1, characterized in that There are several ventilation holes, which are evenly spaced along the circumferential direction of the hub; the aperture size of the ventilation holes is 8-15 mm, and the spacing between the ventilation holes is 2-5 cm.
5. The hub according to claim 1, characterized in that, There are several ventilation holes, which are staggered along the circumferential direction of the hub; the aperture size of the ventilation holes is 8-15 mm, and the spacing between the ventilation holes is 3.5-6 cm.
6. The hub according to claim 1, characterized in that, At least 2 anti-slip blocks are vertically arranged along the height direction of the first heat removal layer at the edge of the ventilation hole, and one side of the anti-slip block is closely attached to the inner surface of the inner hole of the first heat removal layer; the height of the anti-slip block is greater than or less than the thickness of the first heat removal layer.
7. The hub according to claim 6, characterized in that, The shape of the end of the anti-slip block far from the ventilation hole is arc-shaped.
8. The hub according to claim 6, characterized in that, The anti-slip blocks are evenly spaced along the circumferential direction of the ventilation hole.
9. The hub according to claim 6, wherein The side wall of the anti-slip block is provided with protruding particles.
10. The hub according to claim 1, characterized in that, A groove is provided on the upper surface of the hub; an adhesive layer is provided on the inner wall of the groove; a convex column matching the adhesive layer is provided at the bottom of the first heat removal layer.