Lightweight carbon-ceramic brake disc assembly for new energy automobile

Abstract

The utility model relates to the technical field of braking equipment, and discloses a light-weight carbon-ceramic brake disc assembly and device for a new energy automobile. The light-weight carbon-ceramic brake disc assembly for the new energy automobile comprises a base body and a carbon-ceramic brake disc, wherein the base body is of an annular structure; the ventilation grooves are formed in the base body and penetrate through the outer ring side and the inner ring side of the base body; the air guide gear ring is connected with the base body inner ring; the air guide teeth are arranged on the air guide gear ring; according to the light-weight carbon-ceramic brake disc assembly for the new energy automobile, compared with a traditional metal material, the weight of the brake disc assembly made of the carbon-ceramic composite material is greatly reduced, the mass of the whole automobile can be reduced, the endurance mileage of the new energy automobile is increased, and the energy consumption efficiency of the new energy automobile is improved; the heat dissipation capacity of the brake disc is remarkably improved through the ventilation grooves and the air guide teeth, the heat fading phenomenon is effectively prevented, the stability and reliability of a brake system are ensured, and the brake performance is improved.

Description

Technical Field

[0001] This application relates to the technical field of braking equipment, for example, it relates to a lightweight carbon-ceramic brake disc assembly for new energy vehicles. Background Art

[0002] The descriptions in this section only provide background information related to the present disclosure and do not constitute prior art.

[0003] The brake disc assembly is a key component of vehicle braking and is also one of the frequently working components of the vehicle. Its stable performance determines the safety of the driver. With the increasing scale of the new energy vehicle market at home and abroad, after the technology becomes mature and stable, major manufacturers have been seeking cost reduction through technology. Among them, the lightweight of the brake disc assembly is an important direction for cost reduction. Currently, almost all manufacturers still use brake discs made of ordinary metal materials. Brake discs made of metal materials are heavy and have low friction performance, which reduces the performance of new energy vehicles. Utility Model Content

[0004] This application provides a lightweight carbon-ceramic brake disc assembly for new energy vehicles. The brake disc assembly made of carbon-ceramic composite material has a significantly reduced weight compared with traditional metal materials, which helps to reduce the overall vehicle mass, improve the driving range and energy consumption efficiency of new energy vehicles. The heat dissipation capacity of the brake disc is significantly improved through ventilation grooves and air guiding teeth, effectively preventing the phenomenon of heat fade, ensuring the stability and reliability of the braking system, and enhancing the braking performance.

[0005] There is provided a lightweight carbon-ceramic brake disc assembly for new energy vehicles, including: a base body, having an annular structure; a plurality of ventilation grooves, provided on the base body and penetrating through the outer ring side and the inner ring side of the base body; an air guiding tooth ring, connected to the inner ring of the base body; a plurality of air guiding teeth, provided on the air guiding tooth ring; and a hub, connected to the air guiding tooth ring or the air guiding teeth.

[0006] Optionally, the hub is connected to the air guiding tooth ring or the air guiding teeth through a floating block.

[0007] Optionally, the floating block is a cap-shaped sleeve.

[0008] Optionally, the brake disc assembly further includes: a screw for fixing the hub on the air guiding tooth ring or the air guiding teeth; a through hole provided on the floating block, and the screw passes through the through hole.

[0009] Optionally, the brake disc assembly further includes: a plurality of bolt holes provided on the air guiding tooth ring or the air guiding teeth; a plurality of connection holes provided on the hub, corresponding to the bolt holes; a gasket provided between the bolt holes and the connection holes; and the floating block sequentially passes through the connection holes, the gasket, and the bolt holes, and the screw sequentially passes through the floating block, the connection holes, the gasket, and the bolt holes and is connected to a nut.

[0010] Optionally, the ventilation grooves are arranged radially around the central axis of the base body at intervals. The ventilation grooves are oblong holes, and the long axis of the oblong hole is parallel to the central axis of the base body.

[0011] Optionally, a groove body is provided on the joint head, and the groove body can accommodate the floating block.

[0012] Optionally, the groove body is a U-shaped clamping groove.

[0013] Optionally, the air guiding teeth include one or more of the following:

[0014] The air guiding teeth are trapezoidal; the air guiding teeth are arranged around the central axis of the base body at intervals; the axis of the air guiding teeth points in the direction of the central axis of the base body.

[0015] Optionally, positioning holes are provided on the joint head.

[0016] A lightweight carbon-ceramic brake disc assembly for a new energy vehicle provided by the present application can achieve the following technical effects:

[0017] Compared with traditional metal materials, the brake disc assembly made of carbon-ceramic composite material has a significantly reduced weight, which helps to reduce the overall vehicle weight, improve the driving range and energy consumption efficiency of the new energy vehicle. The heat dissipation capacity of the brake disc is significantly improved through the ventilation grooves and the air guiding teeth, effectively preventing the phenomenon of heat fade, ensuring the stability and reliability of the braking system, and improving the braking performance.

[0018] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present application. Description of the Drawings

[0019] One or more embodiments are exemplarily illustrated by the corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and among them:

[0020] Figure 1 is an exploded view of the brake disc assembly structure provided by an embodiment of the present disclosure;

[0021] Figure 2 is a three-dimensional view of the brake disc assembly structure provided by an embodiment of the present disclosure;

[0022] Figure 3 is another three-dimensional view of the brake disc assembly structure provided by an embodiment of the present disclosure;

[0023] Figure 4 is a side view of the brake disc assembly structure provided by an embodiment of the present disclosure;

[0024] Reference Signs:

[0025] 1. Substrate; 11. Ventilation groove; 12. Bolt hole; 13. Air guiding tooth; 2. Floating block; 3. Screw; 4. Coupling head; 41. Mounting hole; 42. Positioning hole; 43. Central hole; 44. Groove body; 45. Threaded hole; 5. Gasket; 6. Nut. Detailed implementation manners

[0026] In order to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The attached drawings are only for reference and explanation purposes and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, multiple details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner to simplify the drawings.

[0027] In the embodiments of the present disclosure, terms such as "first", "" in the description and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0028] In the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0029] In addition, the terms "arranged", "connected", "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can also be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0030] Unless otherwise specified, the term "plurality" means two or more.

[0031] In the embodiments of the present disclosure, the character " / " indicates an "or" relationship between the front and rear objects. For example, A / B means: A or B.

[0032] It should be noted that, without conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0033] Combined Figures 1-4 As shown, the embodiments of the present disclosure provide a lightweight carbon-ceramic brake disc assembly for a new energy vehicle, including a base body 1, ventilation grooves 11, a wind guiding tooth ring 13, wind guiding teeth 13, and a hub 4.

[0034] The base body 1 is made of carbon-ceramic composite material. The carbon-ceramic composite material has the characteristics of lightweight, high specific strength, high specific modulus, excellent wear resistance and good thermal stability. The base body 1 is in a ring structure to adapt to the installation requirements of the braking system and ensure the structural stability during braking; a plurality of ventilation grooves 11, the optional number is 40 - 60, are arranged on the base body 1, penetrating through the outer ring side and the inner ring side of the base body 1, effectively reducing the heat accumulation during braking and improving the braking performance. At the same time, the ventilation grooves 11 further reduce the weight of the base body 1; the wind guiding tooth ring 13 is connected to the inner ring of the base body 1. The wind guiding tooth ring 13 and the base body 1 can be fixedly connected by means such as integral casting / manufacturing, welding, bolt connection, etc. The present application does not limit this; a plurality of wind guiding teeth 13, the optional number is 40 - 60, are arranged on the wind guiding tooth ring 13. The wind guiding teeth 13 and the wind guiding tooth ring 13 can be fixedly connected by means such as integral casting / manufacturing, welding, bolt connection, etc. The present application does not limit this. The wind guiding teeth 13 can guide air into the ventilation grooves 11 to further enhance the heat dissipation effect; the hub 4 is connected to the wind guiding tooth ring 13 or the wind guiding teeth 13. The connection between the hub 4 and the wind guiding tooth ring 13 or the wind guiding teeth 13 is made in a reliable and easily detachable manner, facilitating the installation, maintenance and replacement of the brake disc.

[0035] Optionally, the hub 4 is connected to the wind guiding tooth ring 13 or the wind guiding teeth 13 through a floating block 2. The floating block 2 is made of a material compatible with the material of the base body 1 and having good mechanical properties and wear resistance, such as high-strength ceramics, special alloys or specially treated metal composite materials. One end of the floating block 2 is fixedly connected to the hub 4 through fasteners (such as bolts, pins, etc.) or integral molding, and the other end is matched with the bolt hole 12 on the wind guiding tooth ring 13 or the wind guiding teeth 13 to form a floating connection structure. This design allows the floating block 2 to generate a certain displacement or rotation according to the force situation during the rotation and braking of the brake disc, thereby alleviating the deformation or damage caused by the concentration of thermal stress or mechanical stress.

[0036] Optionally, the floating block 2 is a cap-shaped sleeve. More specifically, the upper part of the floating block 2 is a hollow round cap, and the lower part is a hollow cylinder.

[0037] Optionally, the floating block 2 is made of 316 stainless steel and is used to connect with the bolt holes 12 of the carbon ceramic brake disc. The through hole of the floating block 2 is used to install the screw rod 3. The design concept of the floating block 2 is an overall floating type. During the vehicle braking process, there is a floating space between the carbon ceramic brake disc and the adapter 4, which reduces the buffer stress and avoids damage to the carbon ceramic brake disc.

[0038] Optionally, the brake disc assembly further includes: a screw rod 3 for fixing the adapter 4 on the air guiding teeth 13 ring or the air guiding teeth 13; a through hole provided on the floating block 2, and the screw rod 3 passes through the through hole.

[0039] Optionally, the brake disc assembly further includes: a plurality of bolt holes 12, the optional number is 14 - 16, which are provided on the air guiding teeth 13 ring or the air guiding teeth 13; a plurality of connecting holes, the optional number is 14 - 16, which are provided on the adapter 4 and are arranged corresponding to the bolt holes 12; a gasket 5 provided between the bolt holes 12 and the connecting holes. The gasket 5 can be made of 316 stainless steel. The gasket 5 is installed between the adapter 4 and the carbon ceramic brake disc. The gasket 5 can effectively reduce the impact force generated on the carbon ceramic brake disc and the adapter 4 during vehicle braking, and can avoid the heat transfer of the carbon ceramic brake disc to the adapter 4, ensuring the safe use performance of the carbon ceramic brake disc assembly; and, the floating block 2 passes through the connecting hole, the gasket 5, and the bolt hole 12 in sequence, and the screw rod 3 passes through the floating block 2, the connecting hole, the gasket 5, and the bolt hole 12 in sequence and is connected with the nut 6. The screw rod 3 and the locking nut 6 are made of 316 stainless steel to connect and assemble all the components. The nut 6 is of a locking type rather than a common type. After the screw rod 3 penetrates all the components, through the cooperation of the screw rod 3 and the locking nut 6, the risk of the nut 6 loosening after frequent braking and long-term use of the vehicle can be prevented, ensuring the safety of the driver. After the assembly disc is installed, the screw rod 3 and the nut 6 do not exceed the surface of the carbon ceramic brake disc to avoid affecting the installation of the brake disc.

[0040] Optionally, the ventilation grooves 11 are arranged at intervals around the central axis of the base body 1 in a radial manner. The ventilation grooves 11 are oblong holes. The long axis of the oblong hole is parallel to the central axis of the base body 1. The long axis direction of the oblong hole is parallel to the central axis of the base body 1, so that more ventilation grooves 11 can be arranged on the base body 1, improving the ventilation volume and further enhancing the heat dissipation effect. Of course, the thickness of the base body 1 needs to be appropriately increased to ensure sufficient ventilation volume and structural stability.

[0041] Optionally, the adapter 4 is provided with a groove body 44, the groove body 44 can accommodate the floating block 2, and the connecting hole is provided on the groove body 44.

[0042] Optionally, the groove body 44 is a U-shaped card slot.

[0043] Optionally, the air guiding teeth 13 include one or more of the following: the air guiding teeth 13 are trapezoidal, which is beneficial to guiding the air flow and forming a more efficient heat dissipation path. The acute angle part of the trapezoid can guide the air to flow more concentratedly towards the ventilation slot 11; the air guiding teeth 13 are arranged at intervals around the central axis of the base body 1; air can form a circulating flow around the base body 1, thereby effectively increasing the heat dissipation area and heat dissipation efficiency. The axis of the air guiding teeth 13 points towards the central axis direction of the base body 1. The "tip" or "front end" of the air guiding teeth 13 will face the center of the base body 1, thus helping to guide the external air to the inside of the base body 1 or a position closer to the center for heat dissipation.

[0044] Optionally, positioning holes 42 are arrayed at the inner edge of the joint head 4, and the number is 5 - 6, which are used to fix the carbon ceramic brake disc assembly.

[0045] Optionally, mounting holes 41 are arrayed at the inner edge of the joint head 4, and the number is 5 - 6, which are used for the fixing bolts that pass the joint head 4 through the axle to fix the carbon ceramic brake disc assembly.

[0046] Optionally, screw holes 45 are provided on the joint head 4, which are used to fix the carbon ceramic brake disc assembly.

[0047] Optionally, a central hole 43 is provided on the joint head 4.

[0048] The installation form of the brake disc assembly is as follows: First, place the carbon ceramic brake disc 1 horizontally with the assembly surface facing up; Second, place the gaskets 5 arrayed on the bolt holes 12 of the carbon ceramic brake disc 1 with the central holes aligned; Second, place the joint head 4 horizontally above the gaskets 5, and align the U-shaped card slots of the joint head 4 with the central holes of the gaskets 5; Second, pass the floating blocks 2 through the U-shaped card slots of the joint head 4, the gaskets 5, and the bolt holes 12 of the carbon ceramic brake disc 1 in sequence; Second, pass the screw rods 3 through the floating blocks 2, the U-shaped card slots of the joint head 4, the gaskets 5, and the bolt holes 12 of the carbon ceramic brake disc 1 in sequence; Finally, cooperate and lock the lock nuts 6 with the screw rods 3 to complete the assembly of a lightweight carbon ceramic brake disc assembly for a new energy vehicle.

[0049] The above description and the drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments only represent possible variations. Unless explicitly required, the individual components and functions are optional, and the order of operations can vary. Parts and features of some embodiments can be included in or replaced by parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A lightweight carbon ceramic brake disc assembly for new energy vehicles, characterized in that: include: The matrix, which is a ring-shaped structure; A plurality of ventilation slots are provided on the base body and penetrate the outer ring side and the inner ring side of the base body; An air guide gear ring connected to the inner ring of the base; A plurality of air guide teeth are arranged on the air guide tooth ring; The joint is connected with the air guide gear ring or the air guide teeth.

2. The lightweight carbon ceramic brake disc assembly for new energy vehicles according to claim 1 is characterized in that: The joint head is connected with the air guide gear ring or the air guide teeth through a floating block.

3. The lightweight carbon ceramic brake disc assembly for new energy vehicles according to claim 2 is characterized in that: The floating block is a cap-shaped sleeve.

4. The lightweight carbon ceramic brake disc assembly for new energy vehicles according to claim 2 is characterized in that: Also includes: A screw rod is used to fix the joint head on the air guide gear ring or the air guide gear; A through hole is arranged on the floating block, and the screw rod passes through the through hole.

5. The lightweight carbon ceramic brake disc assembly for new energy vehicles according to claim 4 is characterized in that: Also includes: A plurality of bolt holes are provided on the air guide gear ring or the air guide gear; A plurality of connection holes are provided on the joint head and are arranged corresponding to the bolt holes; a gasket, disposed between the bolt hole and the connection hole; and, The floating block passes through the connection hole, the gasket, and the bolt hole in sequence, and the screw rod passes through the floating block, the connection hole, the gasket, the bolt hole in sequence and is connected with the nut.

6. The lightweight carbon ceramic brake disc assembly for new energy vehicles according to claim 1 is characterized in that: The ventilation slots are radially arranged around the central axis of the base body at intervals. The ventilation slots are oblong hole-shaped slots, and the major axis of the oblong hole is parallel to the central axis of the base body.

7. The lightweight carbon ceramic brake disc assembly for new energy vehicles according to claim 1 is characterized in that: The joint head is provided with a slot body which can accommodate a floating block.

8. The lightweight carbon ceramic brake disc assembly for new energy vehicles according to claim 7 is characterized in that: The slot body is a U-shaped slot.

9. The lightweight carbon-ceramic brake disc assembly for new energy vehicles according to any one of claims 1 to 8, characterized in that: The air guide teeth include one or more of the following: The air guide teeth are trapezoidal; The air guide teeth are arranged at intervals around the central axis of the base body; The axis of the air guide teeth points to the direction of the central axis of the base.

10. The lightweight carbon-ceramic brake disc assembly for new energy vehicles according to any one of claims 1 to 8, characterized in that: The joint head is provided with a positioning hole.

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