CN220416055U - Brake disc and vehicle - Google Patents

Abstract

The utility model discloses a brake disc and a vehicle, wherein the brake disc comprises: a first tray; a second tray spaced apart from the first tray along an axis of the first tray; the connecting parts are arranged between the first disc body and the second disc body, the first side of each connecting part is connected with the first disc body, the second side of each connecting part is connected with the second disc body, and two adjacent connecting parts are matched with the first disc body and the second disc body to define a heat dissipation channel; the first radiating part and the second radiating part are arranged in the radiating channel, the first radiating part is connected with the first disc body, the second radiating part is connected with the second disc body so as to divide the radiating channel into mutually communicated air channels, and the projection of the first radiating part on the first disc body is at least partially misaligned with the projection of the second radiating part on the first disc body in the axial direction of the first disc body. According to the brake disc provided by the embodiment of the utility model, the heat dissipation effect can be effectively improved through the first heat dissipation part and the second heat dissipation part.

Description

Brake disc and vehicle

Technical Field

The utility model belongs to the technical field of automobiles, and particularly relates to a brake disc and a vehicle.

Background

The ventilation brake disc commonly used on the current automobile is provided with two disc bodies which are oppositely arranged, and a plurality of connecting ribs for connecting the two disc bodies are arranged between the two disc bodies. These ribs form a plurality of air passages together with the two disks. The existing brake disc has poor heat dissipation, and when the brake disc is used for high-performance vehicle braking, heat cannot be well dissipated, so that the temperature of the brake disc surface is rapidly increased to be heat-degraded, and the brake is dithered due to large thermal deformation.

Disclosure of Invention

The first object of the utility model is to provide a new technical scheme of a brake disc, which at least can solve the technical problem of poor heat dissipation of the existing brake disc.

A second object of the utility model is to provide a vehicle comprising a brake disc as described above.

According to a first aspect of the present utility model there is provided a brake disc comprising: a first tray; a second tray located on one side of the first tray, the second tray being spaced apart from the first tray along an axis of the first tray; the connecting parts are arranged between the first disc body and the second disc body, the first side of each connecting part is connected with the first disc body, the second side of each connecting part is connected with the second disc body, and two adjacent connecting parts are matched with the first disc body and the second disc body to define a heat dissipation channel; the first radiating part and the second radiating part are arranged in the radiating channel, the first radiating part is connected with the first disc body, the second radiating part is connected with the second disc body, so that the radiating channel is divided into mutually communicated air channels, and the projection of the first radiating part on the first disc body and the projection of the second radiating part on the first disc body are at least partially misaligned in the axial direction of the first disc body.

Optionally, in an axial direction of the first disc, a projection of the first heat dissipation portion on the first disc overlaps with a projection of the second heat dissipation portion on the first disc.

Optionally, in the axial direction of the first disc, a projection of the first heat dissipating portion on the first disc is spaced apart from a projection of the second heat dissipating portion on the first disc.

Optionally, a plurality of first heat dissipation portions and a plurality of second heat dissipation portions are disposed in the heat dissipation channel, and projections of the plurality of first heat dissipation portions on the first disk body and projections of the plurality of second heat dissipation portions on the first disk body are alternately arranged in an axial direction of the first disk body.

Optionally, the width of the first heat dissipation part is gradually reduced from the first disc to the second disc in the axial direction of the first disc; and/or the width of the second heat dissipation part is gradually reduced from the second disc body to the first disc body in the axial direction of the first disc body.

Optionally, a first rounded corner is disposed at an end of the first heat dissipation portion away from the first disc body, and/or a second rounded corner is disposed at an end of the second heat dissipation portion away from the second disc body.

Optionally, in the axial direction of the first disc, the size of the first heat dissipating part is greater than half the size of the heat dissipating channel, and/or the size of the second heat dissipating part is greater than half the size of the heat dissipating channel.

Optionally, at least one of the first heat dissipation portion and the second heat dissipation portion forms a bead extending along a radial direction of the first disk body.

Optionally, the first heat dissipation portion and the second heat dissipation portion are respectively formed as ribs extending in a radial direction of the first disk body, and the first heat dissipation portion and the second heat dissipation portion are spaced apart in a circumferential direction of the first disk body.

Optionally, the connecting portion includes: the first connecting section is connected with the first disc body, and the width of a part of the first connecting section, which is far away from the first disc body, is gradually reduced from the first disc body to the second disc body; the second connecting section is connected with the second disc body, the second connecting section is far away from the width of a part of the second disc body is gradually reduced from the second disc body to the first disc body, and one side of the second connecting section far away from the second disc body is connected with one side of the first connecting section far away from the first disc body.

Optionally, the connection portion is formed as a connection rib extending in a radial direction of the first disk body.

Optionally, the two sides of the connecting rib extending along the radial direction of the first disk body are formed as concave surfaces.

According to a second aspect of the present utility model there is provided a vehicle comprising a brake disc as described above.

According to the brake disc, the first heat radiating part and the second heat radiating part are arranged in the heat radiating channel, so that the heat radiating area of the first heat radiating part and the second heat radiating part can be increased, the heat radiating effect of the brake disc can be improved, and the occurrence of thermal deformation and heat fading of the brake disc can be effectively reduced; and the first radiating part and the second radiating part can divide the radiating channels into mutually communicated air channels, so that pressure difference is formed between the adjacent air channels under the action of the first radiating part and the second radiating part, the fluidity of air can be effectively improved, the radiating effect and the radiating uniformity of the brake disc can be effectively improved, and the occurrence of thermal deformation and heat fading phenomena of the brake disc can be further reduced.

Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.

Drawings

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

FIG. 1 is a schematic overall construction of a brake disc according to one embodiment provided by the present utility model;

FIG. 2 is a schematic partial construction of a brake disc according to one embodiment provided by the present utility model;

FIG. 3 is a schematic structural view of a connection portion of a brake disc according to one embodiment provided by the present utility model;

fig. 4 is a schematic structural view of a first heat dissipating portion of a brake disc according to an embodiment provided by the present utility model;

fig. 5 is a schematic structural view of a second heat dissipating portion of a brake disc according to an embodiment provided by the present utility model.

Reference numerals:

a brake disc 100;

a first tray 10;

a second tray 20;

a connection portion 30; a first connection section 31; a second connecting section 32;

a first heat sink member 40; a first rounded corner 41;

a second heat sink 50; a second rounded corner 51;

a disk cap 60.

Detailed Description

Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

A brake disc 100 according to an embodiment of the present utility model is described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 5, a brake disc 100 according to an embodiment of the present utility model includes a first disc body 10, a second disc body 20, a plurality of connection parts 30, a first heat dissipation part 40, and a second heat dissipation part 50.

Specifically, the second tray 20 is located at one side of the first tray 10, the second tray 20 is spaced apart from the first tray 10 along the axis of the first tray 10, the connection parts 30 are arranged between the first tray 10 and the second tray 20, the first side of each connection part 30 is connected with the first tray 10, the second side of each connection part 30 is connected with the second tray 20, and two adjacent connection parts 30 cooperate with the first tray 10 and the second tray 20 to define a heat dissipation channel; the first heat dissipation portion 40 and the second heat dissipation portion 50 are arranged in the heat dissipation channel, the first heat dissipation portion 40 is connected with the first disk body 10, the second heat dissipation portion 50 is connected with the second disk body 20 to divide the heat dissipation channel into mutually communicated air channels, and in the axial direction of the first disk body 10, the projection of the first heat dissipation portion 40 on the first disk body 10 is at least partially not overlapped with the projection of the second heat dissipation portion 50 on the first disk body 10.

In other words, as shown in fig. 1 to 5, the brake disc 100 according to the embodiment of the present utility model is mainly composed of the first disc 10 and the second disc 20, wherein the first disc 10 and the second disc 20 are ring-shaped members, the inner side of the first disc 10 is connected with the cap 60 extending in the axial direction of the first disc 10, the first disc 10 and the second disc 20 are spaced apart in the axial direction of the first disc 10 by the cap 60, a gap exists between the inner side of the second disc 20 and the cap 60, and the first side of the first disc 10 is disposed opposite to the first side of the second disc 20, the second side of the first disc 10 may be formed as the first friction surface, and the second side of the second disc 20 may be formed as the second friction surface.

As shown in fig. 1 and 2, a plurality of connection parts 30 are provided between the first and second trays 10 and 20, a first side of each connection part 30 is connected with a first side of the first tray 10, a second side of each connection part 30 is connected with a first side of the second tray 20, such that the first and second trays 10 and 20 are connected with the plurality of connection parts 30 as a whole, and adjacent two connection parts 30 define a plurality of heat dissipation channels with the first and second trays 10 and 20, a first end of each heat dissipation channel is opened at an inner side of the first and second trays 10 and 20, and a second end of each heat dissipation channel is opened at an outer side of the first and second trays 10 and 20.

As shown in fig. 1 and 2, each heat dissipation channel is internally provided with a first heat dissipation portion 40 and a second heat dissipation portion 50, in the axial direction of the first disk body 10, the projection of the first heat dissipation portion 40 on the first disk body 10 and the projection of the second heat dissipation portion 50 on the first disk body 10 are at least partially misaligned, a first side of the first heat dissipation portion 40 is connected with the first disk body 10, a space exists between a second side of the first heat dissipation portion 40 and the second disk body 20, a first side of the second heat dissipation portion 50 is connected with the second disk body 20, and a space exists between a second side of the second heat dissipation portion 50 and the first disk body 10, so that the heat dissipation channels can be separated into a plurality of mutually communicated air channels under the cooperation of the first heat dissipation portion 40 and the second heat dissipation portion 50.

When the brake disc 100 rotates at a high speed, air flows into the heat dissipation channel to dissipate heat of the brake disc 100, the heat dissipation area of the first disc body 10 can be increased through the first heat dissipation part 40, the heat dissipation area of the second disc body 20 can be increased through the second heat dissipation part 50, and the heat dissipation uniformity of the brake disc 100 can be improved; meanwhile, the first heat dissipation part 40 and the second heat dissipation part 50 can form pressure difference between adjacent air channels, so that the fluidity of air can be improved, and the air flow velocity and the pressure distribution in the heat dissipation channels are more uniform.

Thus, according to the brake disc 100 of the embodiment of the present utility model, by arranging the first heat dissipation portion 40 and the second heat dissipation portion 50 in the heat dissipation channel, the heat dissipation area of the first heat dissipation portion 40 and the second heat dissipation portion 50 can be increased, so that the heat dissipation effect of the brake disc 100 can be improved, and the occurrence of thermal deformation and thermal degradation phenomena of the brake disc 100 can be effectively reduced; and the heat dissipation channels can be divided into mutually communicated air channels through the first heat dissipation part 40 and the second heat dissipation part 50, so that pressure difference can be formed between adjacent air channels under the action of the first heat dissipation part 40 and the second heat dissipation part 50, the fluidity of air can be effectively improved, the heat dissipation effect and the heat dissipation uniformity of the brake disc 100 can be effectively improved, and the occurrence of thermal deformation and heat fading phenomena of the brake disc 100 can be further reduced.

According to some embodiments of the utility model, brake rotor 100 is an integrally formed casting.

According to one embodiment of the present utility model, in the axial direction of the first disk 10, the projection of the first heat sink member 40 onto the first disk 10 coincides with the projection of the second heat sink member 50 onto the first disk 10.

That is, in the axial direction of the first disk 10, the projection of the first heat dissipating portion 40 onto the first disk 10 partially overlaps with the projection of the second heat dissipating portion 50 onto the first disk 10, and partially does not overlap, so that the first heat dissipating portion 40 and the second heat dissipating portion 50 have portions that are offset from each other in the arrangement direction.

In the present embodiment, the distance between the first heat dissipation portion 40 and the second heat dissipation portion 50 is d1, the distance between the first heat dissipation portion 40 and the second disk body 20 and the distance between the second heat dissipation portion 50 and the first disk body 10 are d2, and the distance between the first disk body 10 and the second disk body 20 is d3, wherein d1 < d2 < d3.

When the brake disc 100 rotates at a high speed, for example, air flows from the first heat dissipation portion 40 to the second heat dissipation portion 50, since d1 < d2 < d3, the size of the connection portion of the adjacent air channels in the axial direction of the first disc body 10 is first reduced from large to small and then is increased from small to large, so that the pressure difference between the adjacent air channels is changed step by step, and the air flow rate flowing through the leeward surfaces of the first heat dissipation portion 40 and the second heat dissipation portion 50 can be increased, thereby improving the heat dissipation effect and the heat dissipation uniformity of the brake disc 100.

In some embodiments of the present utility model, the projection of the first heat sink member 40 onto the first disk 10 is spaced apart from the projection of the second heat sink member 50 onto the first disk 10 in the axial direction of the first disk 10.

Specifically, as shown in fig. 1 and 2, in the axial direction of the first disc 10, the projection of the first heat dissipating portion 40 on the first disc 10 is spaced apart from the projection of the second heat dissipating portion 50 on the first disc 10, so that the first heat dissipating portion 40 is spaced apart from the second heat dissipating portion 50 in the arrangement direction, the flow path of air in the heat dissipating channel can be increased, the air flow rate flowing through the surfaces of the first heat dissipating portion 40 and the second heat dissipating portion 50 is increased, and the heat dissipating effect and the uniformity of heat dissipation of the brake disc 100 are improved.

According to one embodiment of the present utility model, a plurality of first heat dissipation portions 40 and a plurality of second heat dissipation portions 50 are disposed in the heat dissipation channel, and projections of the plurality of first heat dissipation portions 40 on the first disk 10 and projections of the plurality of second heat dissipation portions 50 on the first disk 10 are alternately arranged in an axial direction of the first disk 10.

That is, at least two first heat dissipation portions 40 and at least two second heat dissipation portions 50 may be disposed in the heat dissipation channel, for example, when the first heat dissipation portions 40 and the second heat dissipation portions 50 are distributed in the circumferential direction of the first disc 10, the first heat dissipation portions 40 and the second heat dissipation portions 50 are alternately arranged in the circumferential direction of the first disc 10, so that the heat dissipation effect of the brake disc 100 may be further improved, and the occurrence of thermal deformation and thermal degradation phenomena of the brake disc 100 may be reduced.

In some embodiments of the present utility model, the width of the first heat dissipating portion 40 is gradually reduced from the first disk 10 to the second disk 20 in the axial direction of the first disk 10; and/or, the width of the second heat dissipating part 50 is gradually reduced from the second tray 20 to the first tray 10 in the axial direction of the first tray 10.

Specifically, as shown in fig. 1 and 2, the width of the first heat dissipating part 40 is gradually reduced from the first disk 10 to the second disk 20 in the axial direction of the first disk 10, so that at least one side surface of the first heat dissipating part 40 in the width direction forms a slope with respect to the first side of the first disk 10, that is, one side surface of the first heat dissipating part 40 in the width direction forms a slope with respect to the first disk 10 or both side surfaces form a slope with respect to the first disk 10, and resistance in air flow can be reduced by the slope, which also plays a role in guiding the air flow.

Alternatively, the width of the second heat dissipation portion 50 is gradually reduced from the second disk 20 to the first disk 10 in the axial direction of the first disk 10, so that at least one side surface of the second heat dissipation portion 50 in the width direction forms an inclined surface with respect to the first side of the second disk 20, that is, one side surface of the second heat dissipation portion 50 in the width direction forms an inclined surface with respect to the second disk 20 or both side surfaces form an inclined surface with respect to the second disk 20, and resistance in air flow can be reduced by the inclined surface, which also plays a certain guiding role for air flow.

According to one embodiment of the present utility model, the end of the first heat dissipating part 40, which is far from the first disk 10, is provided with a first rounded corner 41, and/or the end of the second heat dissipating part 50, which is far from the second disk 20, is provided with a second rounded corner 51.

That is, as shown in fig. 2, 4 and 5, the first rounded corner 41 is disposed at the end of the first heat dissipation portion 40 far from the first disc 10, so that the resistance when air flows through the first heat dissipation portion 40 can be reduced, and the second rounded corner 51 is disposed at the end of the second heat dissipation portion 50 far from the second disc 20, so that the resistance when air flows through the second heat dissipation portion 50 can be reduced, and the fluidity of air can be further improved and the heat dissipation effect of the brake disc 100 can be improved by matching the first rounded corner 41 and the second rounded corner 51.

According to some embodiments of the present utility model, both ends of the first heat dissipation portion 40, the second heat dissipation portion 50 and the connection portion 30 are formed as arc surfaces, and resistance of the first heat dissipation portion 40, the second heat dissipation portion 50 and the connection portion 30 to air can be effectively reduced through the arc surfaces, so that heat dissipation effect of the brake disc 100 is improved.

In some embodiments of the present utility model, the first heat dissipating part 40 has a size greater than half the size of the heat dissipating channel in the axial direction of the first disk 10, and/or the second heat dissipating part 50 has a size greater than half the size of the heat dissipating channel, respectively.

That is, as shown in fig. 1 and 2, the first heat dissipating portion 40 may have a size in the axial direction of the first disk 10 that is larger than half the size of the heat dissipating channel in the axial direction of the first disk 10, so that the first heat dissipating portion 40 may be ensured to have a sufficient heat dissipating area, the second heat dissipating portion 50 may also have a size in the axial direction of the first disk 10 that is larger than half the size of the heat dissipating channel in the axial direction of the first disk 10, so that the second heat dissipating portion 50 may be ensured to have a sufficient heat dissipating area, and at the same time, the flow path when air in the heat dissipating channel flows may be increased, so that the heat dissipating effect of the brake disk 100 may be further improved.

In some examples of the present utility model, the plurality of first heat dissipating parts 40 are respectively formed as one of straight ribs and curved ribs, and/or the plurality of second heat dissipating parts 50 are respectively formed as one of straight ribs and curved ribs.

In other words, the first and second heat dissipating parts 40 and 50 may be determined according to the shape of the heat dissipating channel, for example, when the heat dissipating channel is a fan-shaped structure, the first and second heat dissipating parts 40 and 50 may be formed as straight ribs, and when the heat dissipating channel is a curved structure, the first and second heat dissipating parts 40 and 50 may be curved ribs.

In some embodiments of the present utility model, at least one of the first heat dissipating portion 40 and the second heat dissipating portion 50 forms a bead extending in the radial direction of the first disk 10.

That is, specific structures of the first heat dissipating portion 40 and the second heat dissipating portion 50 include, but are not limited to, the following two cases:

in the first case, the first heat dissipation portion 40 is formed as a rib extending along the radial direction of the first disk body 10, such that the first heat dissipation portion 40 is formed as a straight bar shape, and the second heat dissipation portion 50 is formed as other structures, such as an arc structure;

in the second case, the first heat dissipating part 40 is formed in other structures, such as an arc structure, and the second heat dissipating part 50 may be formed as a rib extending in the radial direction of the first disk 10, such that the second heat dissipating part 50 is formed in a straight bar shape.

It should be noted that, the specific structures of the first heat dissipation portion 40 and the second heat dissipation portion 50 may be determined according to actual requirements, which is not described in detail in this embodiment.

According to an embodiment of the present utility model, the first heat dissipating part 40 and the second heat dissipating part 50 are respectively formed as ribs extending in the radial direction of the first disk 10, and the first heat dissipating part 40 and the second heat dissipating part 50 are spaced apart in the circumferential direction of the first disk 10.

Specifically, as shown in fig. 1 and 2, the first heat dissipating part 40 is formed as a bead extending in the radial direction of the first disk 10 such that the first heat dissipating part 40 is formed in a straight bar shape; the second heat dissipation portion 50 is formed as a bead extending in the radial direction of the first disk 10 such that the second heat dissipation portion 50 is formed in a straight bar shape, and the first heat dissipation portion 40 and the second heat dissipation portion 50 are spaced apart in the circumferential direction of the first disk 10 to divide the heat dissipation passage into a plurality of air passages communicating with each other in the circumferential direction of the first disk 10.

In the present embodiment, the first and second heat dissipation portions 40 and 50 in a straight bar shape are convenient to manufacture, and when the brake disc 100 is an integrally molded casting, the first and second heat dissipation portions 40 and 50 in a straight bar shape are convenient to draw out after casting.

In addition, the first heat dissipation portion 40 and the second heat dissipation portion 50 may also be in a circular arc shape, which may be selected according to actual requirements, and the description of this embodiment is omitted.

According to an embodiment of the present utility model, the connection portion 30, the first heat dissipation portion 40 and the second heat dissipation portion 50 may be distributed at equal intervals between the first disc body 10 and the second disc body 20, so that the air channels separated by the first heat dissipation portion 40 and the second heat dissipation portion 50 are substantially the same, and the uniformity of heat dissipation of the brake disc 100 may be effectively improved.

In some embodiments of the utility model, the width of the bead tapers from the first end of the bead to the second end of the bead.

That is, as shown in fig. 1 to 5, the width of the protruding rib may be gradually reduced from the inner side of the first disc body 10 to the outer side of the first disc body 10, and the width of the protruding rib may also be gradually reduced from the outer side of the first disc body 10 to the inner side of the first disc body 10, which may be determined according to the air inlet direction during heat dissipation and the direction of drawing the mold after pouring, for example, when the end of the protruding rib with smaller width faces the air inlet, the resistance of the protruding rib to air may be reduced, and at the same time, the mold drawing from the end of the protruding rib with smaller width may be facilitated, which may be determined according to the actual requirement, which is not repeated in this embodiment.

According to one embodiment of the present utility model, the connection part 30 includes a first connection section 31 and a second connection section 32, the first connection section 31 is connected to the first disk 10, a width of a portion of the first connection section 31 away from the first disk 10 is gradually reduced from the first disk 10 to the second disk 20, the second connection section 32 is connected to the second disk 20, a width of a portion of the second connection section 32 away from the second disk 20 is gradually reduced from the second disk 20 to the first disk 10, and a side of the second connection section 32 away from the second disk 20 is connected to a side of the first connection section 31 away from the first disk 10.

That is, as shown in fig. 2 and 3, the connection part 30 may be composed of a first connection section 31 and a second connection section 32, wherein the first connection section 31 and the second connection section 32 are distributed along the axial direction of the first disk 10, a first side of the first connection section 31 is connected with a first side of the first disk 10, a second side of the first connection section 31 is tapered toward the second disk 20, a width of the first connection section 31 is tapered from the first disk 10 to the second disk 20, the first side of the second connection section 32 is connected with a first side of the second disk 20, a second side of the second connection section 32 is connected with a second side of the first connection section 31, and a width of the second connection section 32 is tapered from the second disk 20 to the first disk 10.

In the present embodiment, the side surface of the connecting portion 30 itself in the width direction is formed in a concave shape, so that the heat radiation area of the brake disc 100 can be increased, and at the same time, the air flow resistance in the heat radiation passage can be reduced, so that the heat radiation effect of the brake disc 100 can be improved.

In some embodiments of the present utility model, the connection portion 30 is formed as a connection rib extending in the radial direction of the first disk 10.

As shown in fig. 1 and 2, in particular, each of the connection portions 30 may be formed as a connection rib extending in the radial direction of the first disc 10 such that the connection portion 30 is formed in a straight bar shape, the connection portion 30 of the straight bar structure being convenient for manufacturing, and when the brake disc 100 is an integrally molded casting, the connection portion 30 of the straight bar structure being convenient for drawing after casting.

In addition, the connecting portion 30 may be in a circular arc shape, which may be selected according to actual requirements, and the description of this embodiment is omitted.

According to one embodiment of the utility model, the width of the connecting rib is gradually smaller from the first end of the connecting rib to the second end of the connecting rib.

That is, as shown in fig. 1 and 3, the width of the connecting rib may be gradually reduced from the inner side of the first disc body 10 to the outer side of the first disc body 10, and the width of the connecting rib may also be gradually reduced from the inner side of the first disc body 10 to the inner side of the first disc body 10, which may be determined according to the air inlet direction during heat dissipation and the direction of drawing the mold after pouring, for example, when the end of the connecting rib with smaller width faces the air inlet, the resistance of the connecting rib to air may be reduced, and at the same time, the mold drawing from the end of the connecting rib with smaller width may be facilitated, which may be determined according to the actual requirement, which is not repeated in this embodiment.

In some embodiments of the present utility model, the connection ribs are formed as concave surfaces along both sides extending in the radial direction of the first disk 10.

As shown in fig. 1 and 2, in the present embodiment, two sides of the connecting rib extending along the radial direction of the first disc body 10 are both formed as concave surfaces, and the concave surfaces can increase the heat dissipation area of the connecting rib and reduce the air flow resistance in the heat dissipation channel, so that the heat dissipation effect of the brake disc 100 can be improved.

In summary, according to the brake disc 100 of the embodiment of the present utility model, by disposing the first heat dissipation portion 40 and the second heat dissipation portion 50 in the heat dissipation channel, the heat dissipation area of the first heat dissipation portion 40 and the second heat dissipation portion 50 can be increased, so that the heat dissipation effect of the brake disc 100 can be improved, and the occurrence of thermal deformation and thermal degradation of the brake disc 100 can be effectively reduced; and the heat dissipation channels can be divided into mutually communicated air channels through the first heat dissipation part 40 and the second heat dissipation part 50, so that pressure difference can be formed between adjacent air channels under the action of the first heat dissipation part 40 and the second heat dissipation part 50, the fluidity of air can be effectively improved, the heat dissipation effect and the heat dissipation uniformity of the brake disc 100 can be effectively improved, and the occurrence of thermal deformation and heat fading phenomena of the brake disc 100 can be further reduced.

Embodiments of the present utility model also provide a vehicle including a brake disc 100 as described in any of the embodiments above. Since the brake disc 100 according to the present utility model can solve the technical problem of poor heat dissipation effect of the existing brake disc, the vehicle according to the embodiment of the present utility model also has the above advantages, can improve the heat dissipation effect of the brake disc 100, and can effectively reduce the occurrence of thermal deformation and heat fading phenomena of the brake disc 100.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims (13)

1. A brake disc comprising:

a first tray (10);

-a second disc (20), the second disc (20) being spaced apart from the first disc (10) along the axis of the first disc (10);

the connecting parts (30) are arranged between the first disc body (10) and the second disc body (20), the first side of each connecting part (30) is connected with the first disc body (10), the second side of each connecting part (30) is connected with the second disc body (20), and two adjacent connecting parts (30) are matched with the first disc body (10) and the second disc body (20) to define a heat dissipation channel;

a first heat dissipation part (40) and a second heat dissipation part (50), wherein the first heat dissipation part (40) and the second heat dissipation part (50) are arranged in the heat dissipation channel, the first heat dissipation part (40) is connected with the first disk body (10), the second heat dissipation part (50) is connected with the second disk body (20) so as to divide the heat dissipation channel into mutually communicated air channels,

in the axial direction of the first disk body (10), the projection of the first heat dissipation part (40) on the first disk body (10) is at least partially not overlapped with the projection of the second heat dissipation part (50) on the first disk body (10).

2. Brake disc according to claim 1, wherein the projection of the first heat sink (40) onto the first disc (10) coincides with the projection of the second heat sink (50) onto the first disc (10) in the axial direction of the first disc (10).

3. Brake disc according to claim 1, wherein the projection of the first heat sink (40) onto the first disc (10) is spaced apart from the projection of the second heat sink (50) onto the first disc (10) in the axial direction of the first disc (10).

4. The brake disc according to claim 1, wherein a plurality of the first heat dissipating portions (40) and a plurality of the second heat dissipating portions (50) are provided in the heat dissipating passage,

in the axial direction of the first disk body (10), projections of a plurality of first heat dissipation parts (40) on the first disk body (10) and projections of a plurality of second heat dissipation parts (50) on the first disk body (10) are alternately arranged.

5. Brake disc according to claim 1, wherein the width of the first heat sink portion (40) tapers from the first disc (10) to the second disc (20) in the axial direction of the first disc (10); and/or the number of the groups of groups,

the width of the second heat dissipation portion (50) gradually decreases from the second disk (20) to the first disk (10) in the axial direction of the first disk (10).

6. Brake disc according to claim 1, wherein the end of the first heat sink portion (40) remote from the first disc body (10) is provided with a first rounded corner (41) and/or the end of the second heat sink portion (50) remote from the second disc body (20) is provided with a second rounded corner (51).

7. Brake disc according to claim 1, wherein the first heat sink portion (40) has a size greater than half the size of the heat sink channel and/or the second heat sink portion (50) has a size greater than half the size of the heat sink channel in the axial direction of the first disc body (10).

8. Brake disc according to claim 1, wherein at least one of the first heat sink portion (40) and the second heat sink portion (50) forms a bead extending in the radial direction of the first disc body (10).

9. Brake disc according to claim 1, wherein the first heat dissipating portion (40) and the second heat dissipating portion (50) are each formed as a bead extending in the radial direction of the first disc body (10), the first heat dissipating portion (40) and the second heat dissipating portion (50) being spaced apart in the circumferential direction of the first disc body (10).

10. Brake disc according to claim 1, wherein the connection (30) comprises:

a first connection section (31), the first connection section (31) is connected with the first disc body (10), and the width of a part of the first connection section (31) away from the first disc body (10) is gradually reduced from the first disc body (10) to the second disc body (20);

a second connection section (32), wherein the second connection section (32) is connected with the second disc body (20), and the width of a part of the second connection section (32) away from the second disc body (20) gradually decreases from the second disc body (20) to the first disc body (10);

one side of the second connecting section (32) far away from the second disc body (20) is connected with one side of the first connecting section (31) far away from the first disc body (10).

11. Brake disc according to claim 1, wherein the connection (30) is formed as a connection rib extending in the radial direction of the first disc body (10).

12. Brake disc according to claim 11, wherein the connecting ribs are formed concave along both sides of the radial extension of the first disc body (10).

13. A vehicle comprising a brake disc according to any one of claims 1 to 12.