Brake disc and vehicle having the same

Abstract

The present invention provides a brake disc and a vehicle having the same, wherein the brake disc comprises: a disc structure, comprising a first disc and a second disc arranged oppositely; a plurality of first rib structures, arranged at intervals between the first disc and the second disc; a plurality of second rib structures, arranged at intervals between the first disc and the second disc, and the second rib structure is located between two adjacent first rib structures; wherein the second rib structure comprises first and second ribs arranged at intervals and a seal connected between the first and second ribs, and the seal is connected between the first disc and the second disc. The technical solution of the present application can effectively solve the problem in the related art that the brake disc is prone to rust and causes the connection structure of the brake disc to be damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle braking, and in particular to a brake disc and a vehicle having the same. Background Art

[0002] In the field of automobile braking systems, the brake disc is a rotating element of a caliper disc brake. It is disc-shaped and mainly consists of a brake disc hub, two annular end faces, and a connecting structure of the two parts. Among them, the brake disc hub is the middle part that is connected and matched with the wheel hub bearing and the wheel, and the two annular end faces are used as the working surfaces of the friction pair. When hydraulic pressure is applied to the caliper disc brake to push the hydraulic piston to move, the piston will drive the friction block to press on the end face of the brake disc. As the pressure increases, the friction block is pressed against the brake disc, causing the brake disc to gradually stop from rotating.

[0003] In related technologies, in order to meet the requirements of lightweight and NVH performance of the whole vehicle, most brake discs have complex structures, consist of many parts, and some components are prone to rust and electrochemical reactions, which have a great impact on product performance and appearance. In severe cases, the product's connection structure may be damaged, creating safety hazards. Summary of the invention

[0004] The main purpose of the present invention is to provide a brake disc and a vehicle having the same, so as to solve the problem in the related art that the connection area of ​​the brake disc is prone to rust and the connection structure of the brake disc is damaged.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a brake disc, comprising: a disc body structure, comprising a first disc body and a second disc body arranged opposite to each other; a plurality of first rib structures, arranged at intervals between the first disc body and the second disc body; a plurality of second rib structures, arranged at intervals between the first disc body and the second disc body, and the second rib structure is located between two adjacent first rib structures; wherein the second rib structure comprises first ribs and second ribs arranged at intervals and a seal connected between the first ribs and the second ribs, and the seal is connected between the first disc body and the second disc body.

[0006] Furthermore, a mounting hole is provided at the center of the disc structure, and the distance between the sealing member and the hole wall of the mounting hole is smaller than the distance between the sealing member and the edge of the disc structure.

[0007] Furthermore, the sealing component includes a third rib, the third rib is connected between the first rib and the second rib, and the first rib, the second rib and the third rib are an integrally formed structure.

[0008] Further, the first disc body, the second disc body, the first rib, the second rib and the sealing member form a recess, and the opening of the recess faces the center of the disc body structure.

[0009] Further, the recess is a conical blind hole or a cylindrical blind hole or an irregular-shaped blind hole.

[0010] Furthermore, the brake disc also includes a disc cap, which is installed in the installation hole, and a convex portion is arranged on the side wall of the disc cap, and the convex portion is inserted into the concave portion.

[0011] Furthermore, there is a gap between the end of the first rib structure close to the mounting hole and the hole wall of the mounting hole.

[0012] Furthermore, the first rib structure and the second rib structure are arranged radially, and the shapes of the first rib structure and the second rib structure include straight, wavy or dotted.

[0013] According to another aspect of the present invention, a vehicle is provided, including a vehicle body and a brake system, wherein the brake system includes a brake disc, and the brake disc is the above-mentioned brake disc.

[0014] According to the technical solution of the present invention, the first disc body and the second disc body are arranged opposite to each other, a plurality of first rib structures are arranged at intervals between the first disc body and the second disc body, a plurality of second rib structures are arranged at intervals between the first disc body and the second disc body, and at the same time, the second rib structure is located between two adjacent first rib structures. The second rib structure includes a first rib, a second rib, and a seal connected between the first rib and the second rib. Through the above arrangement, the seal can effectively seal the interval between the first rib and the second rib, so that the connecting area between the outside of the disc structure and the center of the disc structure can be reduced, so that other impurities can be effectively prevented from entering the connection area of ​​the brake disc, thereby reducing the possibility of corrosion of the connection area, and at the same time, other substances can be reduced from entering the inside of the disc structure, that is, the corrosion of the inside of the disc structure can be effectively reduced. In addition, since there is a gap between the first rib structure and the second rib structure, the heat dissipation function of the entire brake disc can be guaranteed. Therefore, the technical solution of the present application can effectively solve the problem that the connection area of ​​the brake disc is prone to rust and the connection structure of the brake disc is damaged in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 A schematic cross-sectional view showing a disc body structure according to an embodiment of a brake disc of the present invention;

[0017] Figure 2 Shows Figure 1 A three-dimensional structural diagram of a disc structure;

[0018] Figure 3Shows Figure 1 A schematic diagram of the three-dimensional structure of the disc body structure and the disc cap;

[0019] Figure 4 Shows Figure 3 A schematic diagram of the three-dimensional structure of the disk cap;

[0020] Figure 5 Shows Figure 3 A cross-sectional schematic diagram of the disc body structure and the disc cap; and

[0021] Figure 6 A schematic cross-sectional view shows a disc body structure of another embodiment of a brake disc according to the present invention.

[0022] The above drawings include the following reference numerals:

[0023] 10. First disk body; 20. Second disk body; 30. First rib structure; 40. Second rib structure; 41. First rib; 42. Second rib; 43. Sealing member; 431. Third rib; 44. Concave portion; 50. Mounting hole; 60. Disk cap; 61. Protrusion. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0026] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0027] In order to improve the energy-saving and emission-reduction capabilities of vehicles, the demand for lightweight automotive parts for passenger cars and new energy vehicles is increasing. Traditional automobile brake discs use a gray cast iron integrated structure, which has a large specific gravity and is subject to large thermal expansion and deformation, and cannot meet the vehicle's potential demand for NVH and lightweight. Therefore, most of the composite brake discs are currently used, and the type of disc cap material is changed to reduce its own weight. The disc cap and the friction ring are usually connected by fastening bolts, riveting, pinning, bolt and nut pairs or composite casting. This makes the brake disc have a large number of components, a complex structure, high cost, and inconvenient assembly. The process control is also difficult. At the same time, the connection between the brake disc cap and the friction ring is easily corroded by the external environment due to long-term contact with the outside world, which in turn produces brake noise and jitter.

[0028] To avoid corrosion of the brake disc, Figures 1 to 3 as well as Figure 5 In the present embodiment, the brake disc comprises: a disc body structure, a first rib structure 30 and a second rib structure 40. The disc body structure comprises a first disc body 10 and a second disc body 20 arranged opposite to each other. A plurality of first rib structures 30 are arranged at intervals between the first disc body 10 and the second disc body 20. A plurality of second rib structures 40 are arranged at intervals between the first disc body 10 and the second disc body 20, and the second rib structure 40 is located between two adjacent first rib structures 30. The second rib structure 40 comprises first ribs 41 and second ribs 42 arranged at intervals and a seal 43 connected between the first ribs 41 and the second ribs 42, and the seal 43 is connected between the first disc body 10 and the second disc body 20.

[0029] According to the technical solution of this embodiment, the first disc body 10 and the second disc body 20 are arranged opposite to each other, a plurality of first rib structures 30 are arranged at intervals between the first disc body 10 and the second disc body 20, a plurality of second rib structures 40 are arranged at intervals between the first disc body 10 and the second disc body 20, and at the same time, the second rib structure 40 is located between two adjacent first rib structures 30. The second rib structure 40 includes a first rib 41, a second rib 42, and a seal 43 connected between the first rib 41 and the second rib 42. Through the above arrangement, the seal 43 can effectively seal the interval between the first rib 41 and the second rib 42, so that the connecting area between the outside of the disc structure and the center of the disc structure can be reduced, so that other impurities can be effectively prevented from entering the connection area of ​​the brake disc, thereby reducing the possibility of corrosion of the connection area, and at the same time, other substances can be reduced from entering the inside of the disc structure, that is, the corrosion of the inside of the disc structure can be effectively reduced. In addition, since there is a gap between the first rib structure 30 and the second rib structure 40, the heat dissipation function of the entire brake disc can be guaranteed. Therefore, the technical solution of this embodiment can effectively solve the problem in the related art that the connection area of ​​the brake disc is prone to rust and causes the connection structure of the brake disc to be damaged.

[0030] The technical solution of this embodiment optimizes the ventilation duct structure inside the disc structure, so that the contact surface between the disc cap 60 and the disc structure is isolated from the external environment, reducing or even completely avoiding the possibility of corrosion of the contact surface. At the same time, the arrangement of the first rib structure 30 and the second rib structure 40 can ensure the connection strength of the first disc body 10 and the second disc body 20, thereby effectively transmitting the braking torque.

[0031] In order to enable the disc cap to be installed and to reduce the centrifugal force generated by the seal on the brake disc as a whole, such as Figures 1 to 3 as well as Figure 5 As described above, in this embodiment, a mounting hole 50 is provided at the center of the disc structure, and the distance between the seal 43 and the hole wall of the mounting hole 50 is smaller than the distance between the seal 43 and the edge of the disc structure. Since the brake disc rotates during braking, the brake disc has centrifugal force, and the seal 43 is arranged close to the hole wall of the mounting hole 50, which can effectively reduce the centrifugal force of the brake disc, thereby increasing the overall service life of the brake disc.

[0032] The first plate body 10 and the second plate body 20 are concentric rings.

[0033] In order to reduce the difficulty of processing seals, such as Figure 1As shown, in this embodiment, the sealing member 43 includes a third rib 431, and the third rib 431 is connected between the first rib 41 and the second rib 42. The first rib 41, the second rib 42 and the third rib 431 are an integrated structure. The third rib 431 has a simple structure, and the integrated processing method is simple and easy to implement, and can also reduce the production cost.

[0034] In an embodiment not shown in the figure, the first rib and the second rib are directly connected together at one end adjacent to the mounting hole, and there is a gap between the first rib and the second rib at one end away from the mounting hole. In this way, there is no need to set a seal, and other impurities can be prevented from entering the mounting hole.

[0035] like Figure 6 As shown, in other embodiments, the seal 43 is detachably installed between the first rib, the second rib, the first disc body 10 and the second disc body 20, so as to facilitate the cleaning of the brake disc and to adjust the brake disc in a targeted manner to improve the heat dissipation effect of the brake disc.

[0036] In order to reduce the overall weight of the brake disc, Figures 1 to 3 as well as Figure 5 As described above, in this embodiment, the first disc body 10, the second disc body 20, the first rib 41, the second rib 42 and the seal 43 form a recess 44, and the opening of the recess 44 faces the center of the disc body structure. The provision of the recess 44 can effectively reduce the weight of the entire brake disc, thereby improving the lightweight design of the vehicle. At the same time, the opening of the recess 44 faces the center of the disc body structure, which can prevent other impurities (water or oil, etc.) from accumulating between the first rib 41, the second rib 42 and the third rib 431, and can facilitate the connection between the disc cap 60 and the disc body structure.

[0037] like Figures 1 to 3 as well as Figure 5 As described above, in this embodiment, the recess 44 is a conical blind hole. The conical blind hole is relatively easy to process. At the same time, the blind hole can effectively prevent other impurities from entering the mounting hole 50, thereby reducing the possibility of corrosion of the structure in the mounting hole 50.

[0038] In an embodiment not shown in the figure, the recess is a cylindrical blind hole or a rectangular blind hole or an irregularly shaped blind hole.

[0039] In order to make the installation of the disk cap and disk body structure more convenient, such as Figures 3 to 5As shown, in this embodiment, the brake disc further includes a disc cap 60, which is installed in the mounting hole 50, and a convex portion 61 is provided on the side wall of the disc cap 60, and the convex portion 61 is inserted into the concave portion 44. The convex portion 61 is inserted into the concave portion 44, so that the disc cap 60 can be fixed in the disc body structure. Specifically, the disc cap 60 is installed in the mounting hole 50, and then the convex portion 61 is stamped out on the side wall of the disc cap 60 by stamping, and the convex portion 61 is inserted into the concave portion 44.

[0040] like Figure 1 As shown, in this embodiment, the first rib structure 30 and the second rib structure 40 are radially arranged, and the shapes of the first rib structure 30 and the second rib structure 40 include a straight shape. The above-mentioned arrangement method is simple.

[0041] In an embodiment not shown in the figure, the first rib structure and the second rib structure are wavy, or the first rib structure is straight and the second rib structure is wavy, or the first rib structure is wavy and the second rib structure is straight.

[0042] In an embodiment not shown in the figure, the first rib structure and the second rib structure may also be in a point shape.

[0043] According to another aspect of the present application, a vehicle is provided. The vehicle according to this embodiment includes a vehicle body and a brake system. The brake system includes a brake disc, and the brake disc is the above-mentioned brake disc. The above-mentioned brake disc can minimize the entry of impurities into the mounting hole 50 while ensuring sufficient heat dissipation, thereby reducing the possibility of corrosion of the structure in the mounting hole 50. Therefore, the vehicle with the above-mentioned brake disc also has the above-mentioned advantages.

[0044] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0045] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0046] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A brake disc, characterized in that: include: The disk structure comprises a first disk (10) and a second disk (20) which are arranged opposite to each other; A plurality of first rib structures (30) are arranged at intervals between the first disk body (10) and the second disk body (20); a plurality of second rib structures (40) arranged at intervals between the first disk body (10) and the second disk body (20), wherein the second rib structure (40) is located between two adjacent first rib structures (30); The second rib structure (40) comprises a first rib (41) and a second rib (42) arranged at intervals, and a sealing member (43) connected between the first rib (41) and the second rib (42), and the sealing member (43) is connected between the first disk body (10) and the second disk body (20); A mounting hole (50) is provided at the center of the disk structure, and the distance between the sealing member (43) and the hole wall of the mounting hole (50) is smaller than the distance between the sealing member (43) and the edge of the disk structure; The first rib structure (30) and the second rib structure (40) are arranged radially, and the shapes of the first rib structure (30) and the second rib structure (40) include straight, wavy or dotted.

2. The brake disc according to claim 1, characterized in that The sealing member (43) comprises a third rib (431), wherein the third rib (431) is connected between the first rib (41) and the second rib (42), and the first rib (41), the second rib (42) and the third rib (431) are an integrally formed structure.

3. The brake disc according to claim 1, characterized in that The first disk body (10), the second disk body (20), the first rib (41), the second rib (42) and the sealing member (43) form a recess (44), and the opening of the recess (44) faces the center of the disk body structure.

4. The brake disc according to claim 3, characterized in that The recess (44) is a conical blind hole, a cylindrical blind hole, a rectangular blind hole, or an irregular blind hole.

5. The brake disc according to claim 3, characterized in that The brake disc further comprises a disc cap (60), the disc cap (60) being mounted in the mounting hole (50), a convex portion (61) being arranged on a side wall of the disc cap (60), and the convex portion (61) being inserted into the concave portion (44).

6. The brake disc according to claim 1, characterized in that There is a gap between the end of the first rib structure (30) close to the mounting hole (50) and the hole wall of the mounting hole (50).

7. A vehicle, comprising a vehicle body and a braking system, wherein the braking system comprises a brake disc, characterized in that: The brake disc is the brake disc according to any one of claims 1 to 6.

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