TWM646946U - brake disc - Google Patents

Abstract

This invention relates to a brake disc, including: a body and at least one open groove. The body defines an axial direction and a radial direction, and the body includes two side surfaces arranged oppositely in the axial direction; the at least one open groove is provided on at least one of the two side surfaces, and the at least one open groove passes through in the radial direction The body and the at least one open slot can further effectively increase the contact area between the disc and the air to improve the heat dissipation performance without excessively affecting the structural strength of the body.

Description

brake disc

This creation is related to braking devices, especially a brake disc.

Vehicles are often used for transportation in daily life, and the braking device of the vehicle most often uses a disc brake device. The brake disc of the disc brake device is fixed on the wheel. When braking, the calipers of the disc brake device are used to hold the two sides of the brake disc. It uses friction to stop the rotation of the brake disc and the wheel. In addition, the friction between the caliper and the brake disc often generates high heat. This phenomenon will reduce the braking efficiency of the disc brake device and shorten its service life, so it is generally found on the brake disc. Provide multiple heat dissipation holes to increase the surface area of the brake disc, and the heat dissipation effect will be better.

However, the traditional common heat dissipation holes are axially penetrating circular through holes. If the number of such through-type heat dissipation holes is too large or too densely distributed, the structural strength will be reduced, and it is easy to cause distortion and skew when the caliper is clamped. Such undesirable deformation may easily lead to reduced braking performance, unsmooth and unstable braking action.

Therefore, it is necessary to provide a novel and progressive brake disc to solve the above problems.

The main purpose of this invention is to provide a brake disc that can further increase the contact area between the disc and the air through at least one open groove that radially penetrates the body to improve the heat dissipation performance.

In order to achieve the above purpose, this invention provides a brake disc, including: a body and at least one open groove. The body defines an axial direction and a radial direction, and the body includes two side surfaces arranged oppositely in the axial direction; the at least one open groove is provided on at least one of the two side surfaces, and the at least one open groove passes through in the radial direction the ontology.

The following examples are only used to illustrate the possible implementation of this invention, but they are not intended to limit the scope of protection sought by this invention. The "one" or "at least one" before the nouns mentioned in the article do not limit the quantity. It can also be "plural" according to the requirements. This change in quantity is also the scope of the desired protection, which will be explained first.

Please refer to Figures 1 to 5, which show a first embodiment of the present invention. The brake disc of the present invention includes: a body 1 and at least one open groove 2.

The body 1 defines an axial direction 61 and a radial direction 62. The body 1 includes two side surfaces 11 oppositely arranged in the axial direction 61. The at least one open groove 2 is provided on at least one of the two side surfaces 11. The at least one An open groove 2 penetrates the body 1 in the radial direction 62. In this way, the heat dissipation surface area between the body 1 and the air can be increased, and the heat generated by the friction between the body 1 and the caliper can be effectively dissipated quickly. to air.

Specifically, the number of the at least one open slot 2 is a plurality, and the two side surfaces 11 are respectively provided with a plurality of the open slots 2 and arranged in the same position, so that the two side surfaces 11 can produce the same braking capacity and equal counterweight. Proportion; wherein, the body 1 is also defined with a circumferential direction 63, and the plurality of open grooves 2 are distributed along the circumferential direction 63. Preferably, the plurality of open grooves 2 are arranged at equal angular intervals from the center of the body 1, in order to Even distribution provides the same heat dissipation capacity and even weighting.

More specifically, in the radial direction 62, the ratio of the maximum size of each open groove 2 to the minimum size of the body 1 is between 0.1 and 0.3 to control the relationship between each open groove 2 and the body 1 The proportional relationship achieves the dual purpose of lightweighting and maintaining structural strength. Moreover, each open slot 2 is in the shape of "ㄑ", and the largest cross-sectional area of each open slot 2 is the slot, so that when the body 1 rotates, the airflow can quickly flow in and out to take away heat. In addition, each open groove 2 does not penetrate the body 1 in the axial direction 61. In the axial direction 61, the ratio of the maximum size of each open groove 2 to the maximum size of the body 1 is between 0.4 and 0.6. , to effectively maintain the basic structural strength of the body 1.

It is worth mentioning that, in addition to improving the heat dissipation surface area and reducing weight as mentioned above, each open groove 2 can also be used for wear judgment. Specifically, the depth of the open groove 2 in the axial direction 61 is It is the wearable amount. Users can quickly judge the degree of wear through visual means to decide whether the brake disc needs to be replaced. In addition, the unique recognition and aesthetics of the brake disc can also be increased by increasing the number, position and size of the open grooves 2 .

In this embodiment, the brake disc is a combination of inner and outer discs, and the body 1 is annular. The body 1 also includes an outer ring surface 12 and an inner ring surface 13. The outer ring surface 12 and the inner ring surface The annular surface 13 is respectively disposed transversely between the two side surfaces 11. The plurality of open grooves 2 includes a plurality of first open grooves 21. Each of the first open grooves 21 penetrates the outer annular surface 12 along the radial direction 62, and, The plurality of open grooves 2 further includes a plurality of second open grooves 22 , and each of the second open grooves 22 penetrates the inner ring surface 13 along the radial direction 62 .

Specifically, the plurality of first open grooves 21 are equally angularly spaced in the circumferential direction 63, and the plurality of second open grooves 22 are equally angularly spaced in the circumferential direction 63. The spacing angle is different from the spacing angle between the plurality of second open grooves 22, and each of the first open grooves 21 and each of the second open grooves 22 are staggered at intervals in the radial direction 62 and are not connected to each other; wherein, the body 1 also includes a plurality of heat dissipation holes 5 that penetrate the body 1 and are between the first open groove 21 and the second open groove 22 in the radial direction 62 .

More specifically, the body 1 further includes a plurality of connecting portions 4 for connecting the inner disks. The plurality of connecting portions 4 are protruding from the inner ring surface 13 at equal angular intervals. The number is equal to the number of the plurality of second open slots 22 , and one second open slot 22 is provided between any two adjacent assembly portions 4 .

The brake disc also includes two annular grooves 3. The two annular grooves 3 are respectively arranged on the periphery of the two side surfaces 11. The annular grooves 3 of each side surface 11 penetrate the outer annular surface 12 and communicate with each of the first Open grooves 21, wherein, in the radial direction 62, the depth of each ring groove 3 is smaller than the depth of each first open groove 21, each ring groove 3 also has the effect of increasing the heat dissipation surface area, and in the body 1. The function of guiding gas to flow in and out smoothly when rotating.

It can be understood that the number and arrangement position of the open slots 2 are not limited to those shown in the first embodiment, and can be changed according to different requirements. For example, but not limited to, as shown in the second embodiment of FIG. 6 , the body 1A is only provided with a plurality of first open grooves 21A, and the spacing angles between the plurality of first open grooves 21A are the same as those in the first embodiment. Or, as shown in the third embodiment of FIG. 7 , the body 1B is also provided with a plurality of first open grooves 21B like the second embodiment. The difference is that one of the plurality of first open grooves 21B in the third embodiment is The spacing angle is smaller and the number of the plurality of first open grooves 21B is larger. Or, as shown in the fourth embodiment of FIG. 8 , the body 1C is also provided with a plurality of first open grooves 21C and a plurality of second open grooves 22C like the first embodiment. The difference is that: The spacing angle between the plurality of first open grooves 21C is smaller than that in the first embodiment. The spacing angle between the plurality of first open grooves 21C in the fourth embodiment is larger than that in the first embodiment.

1, 1A, 1B, 1C: body 11:Side 12: Outer ring surface 13:Inner ring surface 2: Open slot 21, 21A, 21B, 21C: first open slot 22, 22C: Second open slot 3: Ring groove 4: Assembly and connection department 5:Heat dissipation holes 61:Axis 62: Radial 63:Circumferential

Figure 1 is a perspective view of the first embodiment of the invention. Figure 2 is a partial enlarged view of Figure 1. Figure 3 is a front view of Figure 1. Figure 4 is a cross-sectional view of Figure 3. Figure 5 is a partial enlarged view of Figure 4. Figure 6 is a front view of the second embodiment of the invention. Figure 7 is a front view of the third embodiment of the invention. Figure 8 is a front view of the fourth embodiment of the invention.

1: Ontology

2: Open slot

21: First open slot

22: Second open slot

4: Assembly and connection department

5:Heat dissipation holes

61:Axis

63:Circumferential

Claims (10)

A brake disc includes: A body defines an axial direction and a radial direction, and the body includes two side surfaces arranged oppositely in the axial direction; and At least one open groove is provided on at least one of the two side surfaces and penetrates the body in the radial direction. The brake disc of claim 1, wherein the body is further defined to have a circumferential direction, the number of the at least one open groove is a plurality, and the plurality of open grooves are distributed along the circumferential direction. The brake disc of claim 2, wherein the plurality of open grooves are arranged at equal angular intervals from the center of the body. The brake disc of claim 1, wherein the number of the at least one open groove is a plurality, and the two side surfaces are respectively provided with a plurality of the open grooves and are arranged in the same position. The brake disc of claim 1, wherein the body is annular, and the body further includes an outer ring surface and an inner ring surface, and the outer ring surface and the inner ring surface are respectively transversely located between the two side surfaces. The number of the at least one open groove is a plurality, and the plurality of the open grooves includes a plurality of first open grooves, and each of the first open grooves penetrates the outer ring surface along the radial direction. The brake disc of claim 5, wherein the plurality of open grooves further includes a plurality of second open grooves, and each of the second open grooves penetrates the inner ring surface along the radial direction. The brake disc of claim 6, wherein the body is further defined to have a circumferential direction, the plurality of first open grooves are distributed at equal angular intervals in the circumferential direction, and the plurality of second open grooves are distributed at equal angular intervals in the circumferential direction. Distribution, the spacing angle between the plurality of first open grooves is different from the spacing angle between the plurality of second open grooves. The brake disc according to any one of claims 1 to 7, wherein in the radial direction, the ratio of the maximum size of each open groove to the minimum size of the body is between 0.1 and 0.3. The brake disc according to any one of claims 1 to 7, wherein in the axial direction, the ratio of the maximum size of each open groove to the maximum size of the body is between 0.4 and 0.6. The brake disc of claim 7, wherein the two side surfaces are respectively provided with a plurality of open grooves arranged at the same position; in the radial direction, the ratio of the maximum size of each open groove to the minimum size of the body is between 0.1 to 0.3; in the axial direction, the ratio of the maximum size of each open slot to the maximum size of the body is between 0.4 and 0.6; each open slot is in the shape of "ㄑ", and the cross-section of each open slot is between 0.4 and 0.6. The largest area is the slot; each of the open slots does not penetrate the body in the axial direction; the brake disc also includes two ring grooves, and the two ring grooves are respectively located on the periphery of the two side surfaces, and the two ring grooves on each side surface The ring groove penetrates the outer ring surface and communicates with each of the first open grooves, wherein in the radial direction, the depth of each ring groove is smaller than the depth of each first open groove; the body also includes an inner disk for connecting A plurality of connecting parts, the plurality of connecting parts are protruding from the inner ring surface at equal angular intervals, the number of the plurality of connecting parts is equal to the number of the plurality of second open slots, any two adjacent connecting parts There is a second open slot therebetween; the body also includes a plurality of heat dissipation holes that penetrate the body and are between the first open slot and the second open slot in the radial direction.

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