Brake disc assembly and vehicle

Abstract

The utility model provides a brake disc assembly and a vehicle. The brake disc assembly comprises a brake disc, calipers and a fan assembly. The fan assembly is connected to the calipers, and the fan assembly can be close to or away from the brake disc along with the calipers. The fan assembly comprises a cooling fan, and the rotating speed of the cooling fan is in direct proportion to the clamping force applied to the brake disc by the calipers. According to the arrangement, during emergency braking, along with increase of the clamping force of the calipers, the rotating speed of the cooling fan is increased, the cooling effect of the cooling fan on the brake disc is improved, the braking performance of the vehicle is improved, and the safety of the vehicle is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to a brake disc assembly and a vehicle. Background Art

[0002] With the rapid development of the automobile industry and the improvement of people's quality of life, there are higher requirements for the all-round performance of vehicles. The safety performance of vehicles is an aspect that customers pay close attention to. Among them, the braking performance of vehicles is a crucial aspect of vehicle safety. When a vehicle brakes in an emergency, high temperatures will be generated on the brake disc, which will shorten the service life of the brake disc, and excessive temperature will also affect the braking effect of the brake disc. Existing cooling methods for brake discs include natural cooling and water cooling. Among them, natural cooling has low efficiency and it is difficult to meet the cooling needs of multiple braking in a short period of time. The coolant sprayed in water cooling will increase the degree of rust on the brake disc, and the coolant will also affect the friction coefficient between the brake disc and the brake caliper, thereby affecting the braking effect and reducing the safety of the vehicle.

[0003] Therefore, it is necessary to provide an improved brake disc assembly to solve some or all of the above problems. Utility Model Content

[0004] The present application provides a brake disc assembly and a vehicle with good cooling effect.

[0005] The present application provides a brake disc assembly, comprising a brake disc, a caliper, and a fan assembly; the fan assembly is connected to the caliper, and the fan assembly can move closer to or away from the brake disc as the caliper moves; the fan assembly includes a cooling fan, and the rotational speed of the cooling fan is proportional to the clamping force applied by the caliper to the brake disc.

[0006] Furthermore, the cooling fan includes fan blades and a rotating shaft; one end of the rotating shaft is connected to the fan blades, and the other end can contact the brake disc, so that the cooling fan rotates through the friction between the brake disc and the rotating shaft.

[0007] Furthermore, the friction force between the brake disc and the rotating shaft is F1, the clamping force applied to the brake disc by the caliper is F2, and F1 is proportional to F2.

[0008] Furthermore, the rotating shaft is coaxially arranged with the brake disc, and the end surface of the rotating shaft can abut against the brake disc along with the caliper.

[0009] Furthermore, the brake disc is provided with a friction surface; the circumferential surface of the rotating shaft contacts the friction surface.

[0010] Furthermore, the cooling fan also includes a protective cover; the protective cover is sleeved on the fan blades, and the rotating shaft passes through the protective cover; the blowing direction of the cooling fan is toward the brake disc or away from the brake disc.

[0011] Furthermore, the fan assembly also includes a plurality of gears, the cooling fan includes a rotating shaft, and the plurality of gears are sleeved on the rotating shaft; the diameters of the plurality of gears decrease successively along the axial direction of the rotating shaft and in the direction away from the brake disc; as the clamping force applied to the brake disc by the caliper increases, the plurality of gears engage with the brake disc in turn to increase the rotation speed of the cooling fan.

[0012] Furthermore, the fan assembly also includes a generator; the generator is electrically connected to the cooling fan, and the generator can contact the brake disc along with the caliper, so that the generator can generate electricity through the friction between the generator and the brake disc.

[0013] Furthermore, the fan assembly also includes a regulator; the regulator is connected to the cooling fan to control the rotation speed of the cooling fan.

[0014] The present application also provides a vehicle, comprising a wheel and the brake disc assembly as described above; the brake disc is connected to the wheel.

[0015] Compared to existing technologies, the brake disc assembly of this application utilizes a cooling fan to cool the brake disc, improving its heat dissipation and reducing the risk of rust. Furthermore, the fan's speed is proportional to the clamping force applied by the caliper to the disc. During emergency braking, as the caliper's clamping force increases, the fan's speed also increases, further enhancing the fan's heat dissipation on the disc, thereby improving the vehicle's braking performance and safety.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.

[0018] Figure 1 It is a three-dimensional schematic diagram of the brake disc assembly of the present application.

[0019] Figure 2 yes Figure 1 Schematic side view of the center brake disc assembly.

[0020] Figure 3 yes Figure 2Schematic cross-sectional view of the middle brake disc assembly along AA.

[0021] Figure 4 yes Figure 1 Schematic diagram of the middle brake disc assembly without the brake disc.

[0022] Figure 5 yes Figure 1 Schematic diagram of the center brake disc assembly without the fan assembly.

[0023] Figure 6 It is a three-dimensional schematic diagram of another embodiment of the brake disc assembly of the present application.

[0024] Figure 7 yes Figure 6 Schematic cross-sectional view of the middle brake disc assembly along BB.

[0025] Figure 8 It is a three-dimensional schematic diagram of another embodiment of the brake disc assembly of the present application.

[0026] Figure 9 yes Figure 8 Schematic diagram of the middle brake disc assembly without the brake disc.

[0027] Figure 10 yes Figure 8 Schematic side view of the center brake disc assembly.

[0028] Figure 11 yes Figure 10 Schematic cross-sectional view of the middle brake disc assembly along CC.

[0029] Figure 12 It is a three-dimensional schematic diagram of another embodiment of the brake disc assembly of the present application.

[0030] Figure 13 yes Figure 12 Schematic side view of the center brake disc assembly.

[0031] Figure 14 yes Figure 13 Schematic cross-sectional view of the middle brake disc assembly along DD.

[0032] Explanation of the accompanying drawings: 1-brake disc; 11-friction surface; 12-groove; 13-teeth; 2-caliper; 21-caliper body; 22-brake pad; 3-fan assembly; 31-cooling fan; 311-fan blades; 312-rotating shaft; 3121-end face of rotating shaft; 3122-circumferential surface of rotating shaft; 32-gear; 33-generator; 331-friction rotating shaft. DETAILED DESCRIPTION

[0033] Here, the technical solutions in the embodiments (or "implementations") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0034] If there are terms related to directional indications or positional relationships in the embodiments of this application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first" and "second" in the embodiments of this application are only used for the purpose of convenience of description and should not be understood as indicating or implying relative importance.

[0035] like Figures 1 to 3 As shown, the brake disc assembly of the present application includes a brake disc 1, a caliper 2, and a fan assembly 3. The fan assembly 3 is connected to the caliper 2, and the fan assembly 3 can move closer to or away from the brake disc 1 as the caliper 2 moves. The caliper 2 is used to brake the brake disc 1, and the fan assembly 3 is used to cool the brake disc 1. The fan assembly 3 includes a cooling fan 31, and the rotation speed of the cooling fan 31 is proportional to the clamping force applied to the brake disc 1 by the caliper 2. Specifically, the greater the clamping force applied to the brake disc 1 by the caliper 2, the higher the rotation speed of the cooling fan 31.

[0036] This arrangement improves the heat dissipation of the brake disc 1. Compared to water cooling, the air cooling effect of the cooling fan 31 significantly reduces the degree of rust on the brake disc 1. During emergency braking, as the clamping force of the caliper 2 increases, the speed of the cooling fan 31 also increases, further enhancing the cooling effect of the cooling fan 31 on the brake disc 1 and thus improving the braking performance of the brake disc assembly.

[0037] In some embodiments, the caliper 2 includes a caliper body 21 and a brake pad 22. Two brake pads 22 are disposed on the inner side of the caliper body 21, with the brake disc 1 positioned between the two brake pads 22. When the caliper 2 brakes the brake disc 1, the two brake pads 22 move toward the brake disc 1 and clamp onto the brake disc 1. The greater the clamping force applied by the caliper 2 to the brake disc 1, the greater the friction between the brake pad 22 and the brake disc 1, and the greater the braking ability of the caliper 2 on the brake disc 1. The fan assembly 3 can be disposed on the brake pad 22 and move relative to the brake disc 1 with the brake pad 22.

[0038] Further integration Figure 4As shown, the cooling fan 31 includes blades 311, a rotating shaft 312, and a protective cover (not shown). One end of the rotating shaft 312 is connected to the blades 311, and the rotating shaft 312 and the blades 311 are relatively fixed. The other end of the rotating shaft 312 can contact the brake disc 1, so that the cooling fan 311 rotates due to the friction between the brake disc 1 and the rotating shaft 312, thereby cooling the brake disc 1.

[0039] Before the caliper 2 applies the brake disc 1, the rotating shaft 312 is separated from the brake disc 1. When the caliper 2 applies the brake, the rotating shaft 312 moves with the brake pad 22 and contacts the brake disc 1. Subsequently, the fan blades 311 and the rotating shaft 312 rotate, cooling the brake disc 1. As the clamping force applied by the caliper 2 to the brake disc 1 increases, the contact area between the rotating shaft 312 and the brake disc 1 increases, reducing the chance of the rotating shaft 312 slipping and allowing the rotating shaft 312 to rotate stably. This increases the rotation speed of the rotating shaft 312 and the fan blades 311, enhancing the cooling effect of the cooling fan 31 on the brake disc 1.

[0040] The friction force between the brake disc 1 and the rotating shaft 312 is F1, and the clamping force applied by the caliper 2 to the brake disc 1 is F2, with F1 and F2 being directly proportional. Furthermore, as the clamping force applied by the caliper 2 to the brake disc 1 increases, the contact area and friction between the rotating shaft 312 and the brake disc 1 also increase under the action of the caliper 2, making the rotation of the rotating shaft 312 more stable, thereby increasing the rotation speed of the rotating shaft 312 and the fan blade 311.

[0041] In some embodiments, the rotating shaft 312 is coaxially disposed with the brake disc 1, and the end surface 3121 of the rotating shaft 312 can abut the brake disc 1 along with the caliper 2. Preferably, the end surface 3121 of the rotating shaft 312 is flush with the end surface 3121 of the rotating shaft 312. The friction between the end surface 3121 of the rotating shaft 312 and the side surface of the brake disc 1 can increase as the clamping force applied by the caliper 2 to the brake disc 1 increases.

[0042] like Figures 5 to 7 As shown, in some other embodiments, the brake disc 1 is provided with a friction surface 11. The circumferential surface 3122 of the rotating shaft 312 contacts the friction surface 11. Specifically, the brake disc 1 is provided with a groove 12, which is recessed from the side of the brake disc 1 and has a circular shape. The friction surface 11 is located on the inner side of the brake disc 1 and is disposed around the groove 12. A portion of the rotating shaft 312 can extend into the groove 12, and the circumferential surface 3122 contacts the friction surface 11.

[0043] In order to make the shaft 312 more convenient to contact the brake disc 1, the outer diameter of the shaft 312 is equal to the diameter of the groove 12, and part of the shaft 312 is clamped in the groove 12. Of course, the outer diameter of the shaft 312 can also be smaller than the diameter of the groove 12.

[0044] In some embodiments, the rotating shaft 312 is configured as a hollow shaft, allowing a connecting rod on the vehicle to pass through the rotating shaft 312 and connect to the brake disc 1. A protective cover is provided over the fan blades 311 to protect them. The rotating shaft 312 passes through the protective cover. When the fan blades 311 rotate, the cooling fan 31 blows air toward or away from the brake disc 1.

[0045] like Figures 8 to 11 As shown, in some other embodiments, the fan assembly 3 includes a plurality of gears 32, and the plurality of gears 32 are all sleeved on the rotating shaft 312. Specifically, the plurality of gears 32 are located at the end of the rotating shaft 312 away from the fan blades 311. Along the axial direction of the rotating shaft 312 and in the direction away from the brake disc 1, the diameters of the plurality of gears 32 decrease successively. Teeth 13 are provided on the inner side of the brake disc 1, and the plurality of gears 32 can all engage with the teeth 13. As the clamping force applied to the brake disc 1 by the caliper 2 increases, the rotating shaft 312 gradually moves toward the brake disc 1, and then the plurality of gears 32 can engage with the brake disc 1 in turn to increase the rotation speed of the cooling fan 31.

[0046] like Figures 12 to 14 As shown, in some other embodiments, the fan assembly 3 includes a generator 33 and a regulator (not shown). The generator 33 is electrically connected to the cooling fan 31 to provide power to the cooling fan 31. The generator 33 can move with the caliper 2 and contact the brake disc 1, so that the generator 33 generates electricity through the friction between the generator 33 and the brake disc 1.

[0047] The generator 33 includes a friction shaft 331 that contacts the brake disc 1. The regulator is connected to the cooling fan 31 to control the speed of the cooling fan 31. The regulator can also be electrically connected to the generator 33 so that the generator 33 supplies power to the regulator.

[0048] The present application also provides a vehicle, comprising a wheel (not shown) and the brake disc assembly as described above, wherein the brake disc 1 is connected to the wheel.

[0049] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application shall be included in the scope of protection of this application.

Claims

1. A brake disc assembly, characterized in that: It includes a brake disc, a caliper and a fan assembly; the fan assembly is connected to the caliper, and the fan assembly can move closer to or away from the brake disc as the caliper moves; the fan assembly includes a cooling fan, and the rotation speed of the cooling fan is proportional to the clamping force applied by the caliper to the brake disc.

2. The brake disc assembly according to claim 1, characterized in that: The cooling fan includes fan blades and a rotating shaft; one end of the rotating shaft is connected to the fan blades, and the other end can contact the brake disc, so that the cooling fan is rotated by the friction between the brake disc and the rotating shaft.

3. The brake disc assembly according to claim 2, characterized in that: The friction force between the brake disc and the rotating shaft is F1, and the clamping force applied to the brake disc by the caliper is F2, and F1 is proportional to F2.

4. The brake disc assembly according to claim 2, characterized in that: The rotating shaft is coaxially arranged with the brake disc, and the end surface of the rotating shaft can abut against the brake disc along with the caliper.

5. The brake disc assembly according to claim 2, characterized in that: The brake disc is provided with a friction surface; the circumferential surface of the rotating shaft contacts the friction surface.

6. The brake disc assembly according to claim 2, characterized in that: The cooling fan further includes a protective cover; the protective cover is sleeved on the fan blades, and the rotating shaft passes through the protective cover; the blowing direction of the cooling fan is toward the brake disc or away from the brake disc.

7. The brake disc assembly according to claim 1, characterized in that: The fan assembly also includes a plurality of gears, and the cooling fan includes a rotating shaft, and the plurality of gears are sleeved on the rotating shaft; the diameters of the plurality of gears decrease successively along the axial direction of the rotating shaft and in the direction away from the brake disc; as the clamping force applied to the brake disc by the caliper increases, the plurality of gears engage with the brake disc in turn to increase the rotation speed of the cooling fan.

8. The brake disc assembly according to claim 1, characterized in that: The fan assembly also includes a generator; the generator is electrically connected to the cooling fan, and the generator can contact the brake disc along with the caliper, so that the generator generates electricity through the friction between the generator and the brake disc.

9. The brake disc assembly according to claim 8, characterized in that: The fan assembly further includes a regulator; the regulator is connected to the heat dissipation fan to control the rotation speed of the heat dissipation fan.

10. A vehicle, characterized in that: The invention comprises a wheel and a brake disc assembly according to any one of claims 1 to 9; the brake disc is connected to the wheel.

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