CN220904559U - Electric vehicle hub with heat dissipation mechanism - Google Patents
Electric vehicle hub with heat dissipation mechanism Download PDFInfo
- Publication number
- CN220904559U CN220904559U CN202323048086.9U CN202323048086U CN220904559U CN 220904559 U CN220904559 U CN 220904559U CN 202323048086 U CN202323048086 U CN 202323048086U CN 220904559 U CN220904559 U CN 220904559U
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- China
- Prior art keywords
- heat dissipation
- brake
- drum
- electric vehicle
- brake drum
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 85
- 230000007246 mechanism Effects 0.000 title claims abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 10
- 230000006872 improvement Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
The utility model discloses an electric vehicle hub provided with a heat dissipation mechanism, which belongs to the technical field of manufacturing of electric vehicle accessories, and comprises a hub body (1) and a hub end cover (2), wherein a brake drum (3) is arranged on the outer side of the hub end cover (2), the heat dissipation mechanism is arranged on the outer side of the brake drum (3) and comprises an annular aluminum heat dissipation ring (5), the heat dissipation ring (5) is sleeved on the outer side of the brake drum (3), and the inner surface of the heat dissipation ring (5) is attached to the outer surface of the brake drum (3).
Description
Technical Field
The utility model belongs to the technical field of manufacturing of electric vehicle accessories, and particularly relates to an electric vehicle hub provided with a heat dissipation mechanism.
Background
The drum brake is a brake device which uses oil pressure to push a static brake pad in a brake drum to rub the brake drum rotating along with a wheel so as to generate friction force to reduce the rotation speed of the wheel. In the braking process, heat generated by rapid friction between the brake pad and the brake drum can increase the diameter of the brake drum on one hand, so that the stroke of stepping on the brake pedal is increased, and the situation that the braking reaction is not as expected easily occurs; on the other hand can cause wearing and tearing, the deformation of brake block and brake drum, appear the problem that the laminating degree is not enough between the two, can't obtain effectual giving off at the heat that the in-process produced of braking, also can lead to the condition that the brake block appears heat failure, finally influence the braking effect.
The utility model patent number CN201922118485.5 discloses a stable electric front drum brake, which comprises a drum brake body, wherein a brake drum is integrally formed at the inner edge of the side surface of the drum brake body, a brake plate is erected on the inner wall of the drum brake body through a rotating shaft, a brake block is sleeved on the outer side surface of the brake plate in a jogged manner, heat extraction grooves are uniformly formed in the outer side surface of the brake block, auxiliary cooling fins are integrally formed in the outer side surface of the brake plate, and air guide holes are formed in the side surface of the auxiliary cooling fins. In this electronic preceding drum of stable form is stopped, make the drum inside of stopping circulate with outside through the heat dissipation groove, dispel the heat to the side surface of brake block through the heat extraction groove is direct, carries out supplementary heat dissipation to the brake block through supplementary fin to avoid the drum inside overheated, promote drum and stop life.
However, in the stable electric front drum brake, only the heat dissipation of the braking plate and the braking pad and the heat circulation between the inside and the outside of the drum brake are considered, and the problems of diameter increase and abrasion deformation of the braking drum due to friction heat after the braking drum is contacted with the braking pad are not considered.
Disclosure of utility model
The utility model aims to solve the technical problems that in the prior art, in the braking process of a drum brake, the drum brake and a brake pad are worn and deformed due to friction heat, the diameter of the drum brake is increased, the braking effect is affected and the like, and provides an electric vehicle hub provided with a heat dissipation mechanism for carrying out auxiliary heat dissipation on the drum brake, so that the problems of diameter increase and wear and deformation of the drum brake due to friction heat are prevented.
In order to solve the technical problems, the utility model provides an electric vehicle hub provided with a heat dissipation mechanism, which comprises a hub body and a hub end cover, wherein a brake drum is arranged on the outer side of the hub end cover, an installation space corresponding to a drum brake assembly is arranged inside the brake drum, the heat dissipation mechanism is arranged outside the brake drum and comprises an annular aluminum heat dissipation ring, the heat dissipation ring is sleeved on the outer side of the brake drum, and the inner surface of the heat dissipation ring is attached to the outer surface of the brake drum.
As a further improvement measure of the utility model, the outer surface of the heat dissipation ring is provided with heat dissipation ribs along the axial direction of the heat dissipation ring, and the heat dissipation ribs are distributed in sequence along the circumferential direction of the heat dissipation ring.
As a further improvement of the present utility model, the cross section of the heat dissipating rib is rectangular.
As a further improvement of the present utility model, the cross section of the heat dissipating rib is arc-shaped.
As a further improvement of the present utility model, a heat dissipation space is formed between the two adjacent heat dissipation ribs.
As a further improvement measure of the utility model, the heat dissipation ring and the heat dissipation ribs are arranged as an integrated structure.
As a further improvement of the present utility model, the drum brake assembly includes a brake pad and a brake pump, wherein an outer surface of the brake pad corresponds to an inner surface of the brake drum.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the heat dissipation ring is arranged on the outer surface of the brake drum, so that the heat dissipation area of the brake drum is increased, and the heat dissipation ring can be used for carrying out auxiliary heat dissipation on the brake drum, thereby avoiding the situation that the inside of the brake drum is overheated and heat failure occurs in the brake pad, being beneficial to prolonging the service life of the brake drum and ensuring the brake effect; secondly, through set up the heat dissipation muscle on the heat dissipation circle surface, further increase the radiating effect, strengthened the structural strength of brake drum, prevent the brake drum because the friction heat appears diameter increase and wearing and tearing problem of warp, ensured drum brake's braking performance and brake stability.
Drawings
Fig. 1 is a perspective view of embodiment 1 of the present utility model.
Fig. 2 is a front view of embodiment 1 of the present utility model.
Fig. 3 is a left side view of embodiment 1 of the present utility model.
Fig. 4 is a perspective view of embodiment 2 of the present utility model.
Fig. 5 is a perspective view of embodiment 3 of the present utility model.
Reference numerals illustrate: the novel bicycle wheel hub comprises a 1-wheel hub body, a 2-wheel hub end cover, a 3-brake drum, a 4-installation space, a 5-heat dissipation ring, 6-heat dissipation ribs and 7-heat dissipation space.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
On the contrary, the utility model is intended to cover any alternatives, modifications, equivalents, and variations as may be included within the spirit and scope of the utility model as defined by the appended claims. Further, in the following detailed description of the present utility model, certain specific details are set forth in order to provide a better understanding of the present utility model. The present utility model will be fully understood by those skilled in the art without the details described herein.
Example 1: as shown in fig. 1 to 3, an electric vehicle hub provided with a heat dissipation mechanism comprises a hub body 1 and a hub end cover 2, wherein a brake drum 3 is arranged on the outer side of the hub end cover 2, an installation space 4 corresponding to a drum brake assembly is arranged inside the brake drum 3, the drum brake assembly comprises a brake block and a brake pump, the outer surface of the brake block corresponds to the inner surface of the brake drum 3, and the outer surface of the brake block contacts and rubs with the inner surface of the brake drum 3 under the braking of the brake pump so as to realize braking.
The outside of brake drum 3 is provided with heat dissipation mechanism, and heat dissipation mechanism is including setting up to annular aluminium system heat dissipation circle 5, and the outside of brake drum 3 is located to heat dissipation circle 5 cover, and heat dissipation circle 5's internal surface is laminated mutually with the surface of brake drum 3 to this increases the radiating area of brake drum 3 and strengthens the structural strength of brake drum 3, effectively avoids appearing brake drum 3 because of after contacting with the brake block, because the diameter increase and the problem of wearing and tearing deformation that frictional heat caused, ensures the braking performance of drum brake.
In order to ensure the stability of the structure between the heat dissipation ring 5 and the brake drum 3, as a scheme, the heat dissipation ring 5 and the brake drum 3 are directly cast into an integrated structure during production, so that the production is convenient, and breakage is not easy to occur; alternatively, the heat dissipation ring 5 and the brake drum 3 may be fixedly connected by welding.
Example 2: as shown in fig. 4, this embodiment is substantially the same as embodiment 1, except that the outer surface of the heat dissipation ring 5 is provided with heat dissipation ribs 6 along its own axial direction, and the heat dissipation ribs 6 are sequentially and equally distributed along the circumferential direction of the heat dissipation ring 5, the cross section of the heat dissipation ribs 6 is rectangular, and a heat dissipation space 7 is formed between two adjacent heat dissipation ribs 6. During production, the radiating ring 5 and the radiating ribs 6 are directly cast into an integrated structure, so that the production is convenient, and breakage is not easy to occur.
After braking, heat in the brake drum 3 is sequentially transferred to the heat dissipation ring 5 and the heat dissipation ribs 6, and heat conduction and heat convection effects are obtained at the heat dissipation space 7, so that heat dissipation inside the brake drum 3 is realized, heat failure of a brake pad is avoided, and the braking effect is influenced.
In this embodiment, the distance between two adjacent heat dissipation ribs 6 is equal, so that heat transfer is more uniform, the heat dissipation effect is better, the strength consistency of each part of the outer surface of the brake drum 3 is ensured, deformation is not easy to occur after the brake pad is rubbed for a long time, and the stroke of stepping on the brake pedal is unchanged.
Example 3: as shown in fig. 5, this embodiment is substantially the same as embodiment 1, except that the outer surface of the heat dissipation ring 5 is provided with heat dissipation ribs 6 along its own axial direction, and the heat dissipation ribs 6 are sequentially and equally distributed along the circumferential direction of the heat dissipation ring 5, the cross section of the heat dissipation ribs 6 is arc-shaped, and a heat dissipation space 7 is formed between two adjacent heat dissipation ribs 6. During production, the radiating ring 5 and the radiating ribs 6 are directly cast into an integrated structure, so that the production is convenient, and breakage is not easy to occur.
Through setting up arc structure's heat dissipation muscle 6, can make heat dissipation space 7 department obtain fine heat conduction and heat convection effect, more be favorable to the heat in the brake drum 3 to dispel, avoid the brake block to appear heat failure, influence the brake effect.
In this embodiment, the distance between two adjacent heat dissipation ribs 6 is equal, so that heat transfer is more uniform, the heat dissipation effect is better, the strength consistency of each part of the outer surface of the brake drum 3 is ensured, deformation is not easy to occur after the brake pad is rubbed for a long time, and the stroke of stepping on the brake pedal is unchanged.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the embodiments described above, and it will be apparent to those skilled in the art that various modifications and improvements can be made therein without departing from the scope of the utility model.
Claims (7)
1. The utility model provides an electric vehicle hub with cooling mechanism, includes wheel hub body (1) and wheel hub end cover (2), the outside of wheel hub end cover (2) is provided with brake drum (3), the inside of brake drum (3) is provided with installation space (4) corresponding with the drum brake subassembly, a serial communication port, the outside of brake drum (3) is provided with cooling mechanism, cooling mechanism is including setting up into annular aluminium system heat dissipation circle (5), the outside of brake drum (3) is located to heat dissipation circle (5) cover, just the internal surface of heat dissipation circle (5) with the surface of brake drum (3) laminating mutually.
2. The electric vehicle hub provided with the heat dissipation mechanism according to claim 1, characterized in that the outer surface of the heat dissipation ring (5) is provided with heat dissipation ribs (6) along the own axial direction, and the heat dissipation ribs (6) are distributed in sequence along the circumferential direction of the heat dissipation ring (5).
3. The electric vehicle hub provided with a heat dissipation mechanism according to claim 2, characterized in that the cross section of the heat dissipation ribs (6) is rectangular.
4. The electric vehicle hub provided with a heat dissipation mechanism according to claim 2, characterized in that the cross section of the heat dissipation rib (6) is arc-shaped.
5. An electric vehicle hub provided with a heat dissipation mechanism according to claim 3 or 4, characterized in that a heat dissipation space (7) is formed between two adjacent heat dissipation ribs (6).
6. The electric vehicle hub provided with a heat dissipation mechanism according to claim 5, characterized in that the heat dissipation ring (5) and the heat dissipation rib (6) are provided as an integral structure.
7. The electric vehicle hub provided with a heat dissipation mechanism according to claim 1, characterized in that the drum brake assembly comprises a brake pad and a brake pump, the outer surface of the brake pad corresponding to the inner surface of the brake drum (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323048086.9U CN220904559U (en) | 2023-11-10 | 2023-11-10 | Electric vehicle hub with heat dissipation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323048086.9U CN220904559U (en) | 2023-11-10 | 2023-11-10 | Electric vehicle hub with heat dissipation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220904559U true CN220904559U (en) | 2024-05-07 |
Family
ID=90917036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323048086.9U Active CN220904559U (en) | 2023-11-10 | 2023-11-10 | Electric vehicle hub with heat dissipation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220904559U (en) |
-
2023
- 2023-11-10 CN CN202323048086.9U patent/CN220904559U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |