Heat dissipation structure for bicycle brake mechanism, bicycle brake mechanism and brake caliper

Abstract

The utility model discloses a heat dissipation structure for a bicycle brake mechanism, which comprises a bottom plate, a heat dissipation plate and a heat dissipation plate, the bottom plate comprises a first part positioned on the upper surface and a second part positioned on the lower surface, and the width of the first part is smaller than or equal to that of the second part; the bottom plate comprises a front surface and a rear surface which are located on the two sides of the plate, and a second part of the bottom plate is provided with a friction pad attachment area on the front surface so that a friction pad can be attached to the friction pad attachment area of the front surface; and the first part of the bottom plate is provided with a heat dissipation part vertically extending from the rear surface, the width of the heat dissipation part is consistent with that of the first part of the bottom plate, and the heat dissipation part is provided with a plurality of ventilation through holes. The utility model further provides a bicycle brake mechanism comprising the heat dissipation structure and a brake caliper. By the adoption of the heat dissipation structure, heat can be effectively dissipated when the bicycle is braked.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle brakes, in particular to a heat dissipation structure and a brake mechanism for a bicycle brake mechanism, and a brake caliper for bicycle brakes. Background Art

[0002] As a convenient means of transportation, bicycles are very important in the design of brake systems. Common bicycle brake devices include rim brakes, caliper brakes and disc brakes. CN1318259C discloses a disc brake, which includes a brake control device, a disc brake caliper operatively connected to the brake control device, and a brake disc. The disc brake caliper is fixed to the front fork of the bicycle, and the brake disc is fixed to the wheel hub of the wheel. The brake caliper applies a clamping force to stop the bicycle wheel from rotating through the brake disc. The disc brake caliper includes a piston and a brake pad connected to the piston. The brake control device is designed to activate the piston in the disc brake caliper to apply a strong clamping action to the brake disc. In the braking position, the brake pad is frictionally engaged with the brake disc to stop the brake disc and the wheel from rotating. In the release position, the brake pad is spaced apart from the brake disc to allow the brake disc and the wheel to rotate freely therebetween. In the case of a fast-spinning bicycle, the frictional contact between the brake pad and the brake disc generates a lot of heat, so it is necessary to consider the problem of heat dissipation, otherwise the effectiveness of this frictional contact will be reduced and there is a risk of warping the brake disc. Summary of the invention

[0003] In order to solve the above technical problems, the utility model provides a heat dissipation structure for a bicycle brake mechanism, which can effectively dissipate heat when the bicycle is braked.

[0004] According to an embodiment of the utility model, a heat dissipation structure for a bicycle brake mechanism is provided, comprising:

[0005] A bottom plate, comprising a first portion located at an upper portion and a second portion located at a lower portion, wherein a width of the first portion is less than or equal to a width of the second portion;

[0006] The base plate comprises a front surface and a rear surface on either side of the plate, the second portion of the base plate being provided with a friction pad attachment area on the front surface so that a friction pad is attached to the friction pad attachment area of ​​the front surface; and

[0007] The first part of the bottom plate is provided with a heat dissipation portion extending vertically from the rear surface, the width of the heat dissipation portion is consistent with the width of the first part of the bottom plate, and the heat dissipation portion is provided with a plurality of ventilation holes.

[0008] In an optional embodiment, the heat dissipation portion includes a first heat dissipation member and a second heat dissipation member extending vertically from the rear surface, the first heat dissipation member and the second heat dissipation member are arranged in parallel and spaced a certain distance apart, at least one of the first heat dissipation member and the second heat dissipation member is provided with two or more large ventilation holes, and the width of the first heat dissipation member and the second heat dissipation member is consistent with the width of the first part of the base plate.

[0009] In an optional embodiment, the heat dissipation part also includes a third heat dissipation member and a fourth heat dissipation member extending vertically from the rear surface, the third heat dissipation member and the fourth heat dissipation member are arranged in parallel and separated by a certain distance, the third heat dissipation member and the fourth heat dissipation member are perpendicular to the first heat dissipation member and the second heat dissipation member, and at least one of the third heat dissipation member and the fourth heat dissipation member is provided with a large ventilation hole.

[0010] In an optional embodiment, the first heat sink comprises a plate-shaped member having two or more large ventilation holes, which is disposed at the upper end of the base plate.

[0011] In an optional embodiment, a plurality of small ventilation holes are formed on the second heat sink, and the second heat sink comprises a special-shaped plate-like member formed according to assembly requirements.

[0012] In an optional embodiment, the ventilation holes are circular in shape, the diameter of the large ventilation holes is within a range of less than 10 mm, and the diameter of the small ventilation holes is within a range of 2-5 mm.

[0013] In an optional embodiment, the first, second, third and fourth heat dissipating members extend vertically from the rear surface and are formed into hollow rectangular circles.

[0014] In an optional embodiment, a region of the bottom plate where the heat dissipation portion is disposed is provided with a plurality of small ventilation holes that pass through the front surface and the rear surface.

[0015] In an alternative embodiment, the friction lining is adhered to the friction lining attachment area by glue.

[0016] According to an embodiment of the present invention, a bicycle brake mechanism is further provided, which comprises the heat dissipation structure described above and a friction pad adhered to the friction pad attachment area.

[0017] According to an embodiment of the utility model, a brake caliper is also provided, comprising a shell, at least one piston arranged in the shell, and an inner cavity of the shell, the brake caliper also comprising: the bicycle brake mechanism described above, the automatic bicycle brake mechanism is assembled in the inner cavity of the shell, wherein the two heat dissipation structures are at least partially arranged in the inner cavity of the shell, and the friction pads on the heat dissipation structures are arranged opposite to each other, and the heat dissipation portion of each heat dissipation structure is arranged on the outside of the shell.

[0018] By adopting the heat dissipation structure for the bicycle brake mechanism of the utility model, when a large amount of heat is generated by friction contact between the brake mechanism in the brake caliper and the brake disc installed on the wheel hub, the heat can be effectively dissipated through the heat dissipation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional schematic diagram of a brake caliper according to an embodiment of the utility model is shown.

[0020] Figure 2 A side view of a brake caliper according to an embodiment of the present utility model is shown.

[0021] Figure 3 A three-dimensional schematic diagram of a bicycle brake mechanism with a heat dissipation structure according to an embodiment of the utility model is shown.

[0022] Figure 4 A side view of a bicycle brake mechanism with a heat dissipation structure according to an embodiment of the utility model is shown.

[0023] Figure 5 A front view of a bicycle brake mechanism with a heat dissipation structure according to an embodiment of the utility model is shown.

[0024] Figure 6 A rear view of a bicycle brake mechanism with a heat dissipation structure according to an embodiment of the utility model is shown.

[0025] Reference numerals:

[0026] 10-bicycle brake mechanism; 12-heat dissipation structure; 14-bottom plate; 16-first part; 18-second part; 20-front surface; 22-rear surface; 24-friction pad attachment area; 26-heat dissipation part; 261-first heat dissipation member; 263-second heat dissipation member; 265-third heat dissipation member; 267-fourth heat dissipation member; 30-friction pad; 40-brake caliper. DETAILED DESCRIPTION

[0027] The technical solutions of the embodiments will be described clearly and completely below in conjunction with the drawings of the specification of the present application. Those skilled in the art will understand that the embodiments described in the specification are only part of the embodiments of the invention of the present utility model, rather than all of the embodiments. Based on the embodiments described in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present utility model.

[0028] In the description of this patent specification, the directions or positional relationships indicated by "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "longitudinal", "lateral", "center", "vertical", "horizontal", "length", "width", "thickness", "clockwise", "counterclockwise", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments involved in the technical innovation of the utility model, and cannot be understood as limiting the scope of protection of the claims. In addition, those skilled in the art can understand that the terms "first" and "second" used in this specification to describe various components are only to distinguish one component from another, and have no meaning of order, and the corresponding components should not be limited by these terms.

[0029] In the utility model, the bicycle can be any type of bicycle, such as a mountain bike, a road bike, etc. The bicycle includes a frame, a front wheel, a brake control device mounted on the handlebars, and a brake disc fixed to the hub portion of the front wheel of the bicycle, which can rotate with the rotation of the front wheel. The brake caliper is mounted on the front fork of the bicycle, and the brake caliper applies a clamping force under the control of the brake control device to prevent the rotation of the brake disc and thus prevent the rotation of the front wheel of the bicycle. The brake caliper includes a housing and a piston unit. The brake control device and the brake caliper 40 can be hydraulic devices. When the brake control device is operated by a user, the liquid pressure is transmitted to the brake caliper 40 through a hydraulic pipeline, so that the piston (not shown) of the brake caliper 40 moves the bicycle brake mechanism 10 so that the friction pad 30 thereon contacts the surface of the rotating disc.

[0030] According to the embodiments of the present utility model, Figure 1-Figure 6 As shown, a brake caliper 40 is provided, which includes the bicycle brake structure 10 proposed in the present application. The bicycle brake structure 10 includes a heat dissipation structure 12 and a friction pad 30 attached to the heat dissipation structure. The heat dissipation structure is preferably made of aluminum or aluminum alloy, and in other embodiments, it can also be made of other metal materials that are easy to conduct heat. The friction pad is preferably made of resin and metal fiber material. The friction pad 30 is adhered to the friction pad attachment area of ​​the heat dissipation structure 12 by glue.

[0031] like Figure 3As shown, a heat dissipation structure 12 of a bicycle brake mechanism 10 according to an embodiment of the utility model includes a bottom plate 14 , which includes a first portion 16 located on the top and a second portion 18 located on the bottom. The width of the first portion 16 is less than or equal to the width of the second portion 18 .

[0032] like Figure 4 As shown, the bottom plate 14 includes a front surface 20 and a rear surface 22 located on both sides of the plate, and the second portion 18 of the bottom plate is provided with a friction pad attachment area 24 on the front surface 20. The first portion 16 of the bottom plate 14 is provided with a heat dissipation portion 26 extending vertically from the rear surface 22, and the width of the heat dissipation portion 26 is consistent with the width of the first portion 16. The heat dissipation portion 26 is provided with a plurality of ventilation holes.

[0033] like Figure 3 As shown, the heat dissipation portion 26 includes a first heat dissipation member 261 and a second heat dissipation member 263 extending vertically from the rear surface 22, and the first heat dissipation member 261 and the second heat dissipation member 263 are arranged in parallel and spaced a certain distance apart. The widths of the first heat dissipation member 261 and the second heat dissipation member 263 are consistent with the width of the first part 16 of the bottom plate 14. The first heat dissipation member 261 is provided with a plurality of large ventilation holes. In the embodiment shown in the figure, three large ventilation holes are provided on the first heat dissipation member 261 arranged at the upper end of the bottom plate 14. The first heat dissipation member 261 may be a plate-like member, a sheet-like member, etc. having large ventilation holes. The second heat dissipation member 263 arranged below the first heat dissipation member 261 is provided with a plurality of ventilation holes. Although in the illustrated embodiment, the ventilation holes on the second heat dissipation member 263 are small ventilation holes. However, in other embodiments, large ventilation holes may also be provided on the second heat dissipation member 263. Reference Figure 1 and Figure 2 As shown, since the housing of the brake caliper 40 is formed with a circular protrusion, when the brake structure 10 is assembled into the inner cavity of the brake caliper, the heat dissipation portion of the heat dissipation structure 12 extends out of the housing of the brake caliper 40, and the second heat dissipation member 263 is just above the protrusion of the brake caliper 40, so the second heat dissipation member 263 is formed as a sheet member with a receiving portion, and the receiving portion is adapted to the protrusion of the brake caliper for receiving the protrusion of the brake caliper 40. In other embodiments, the second heat dissipation member can be other special-shaped plate-like members formed according to assembly requirements. The thickness of the first heat dissipation member 261 can be greater than the thickness of the second heat dissipation member 263. The width of the first heat dissipation member and the second heat dissipation member is approximately in the range of 4-15 mm.

[0034] The heat dissipation portion 26 further includes a third heat dissipation member 265 and a fourth heat dissipation member 267 extending vertically from the rear surface 22. The third heat dissipation member 265 and the fourth heat dissipation member 267 are arranged in parallel and spaced a certain distance apart. The third heat dissipation member 265 and the fourth heat dissipation member 267 are perpendicular to the first heat dissipation member 261 and the second heat dissipation member 263. A large ventilation hole is provided on at least one of the third heat dissipation member 265 and the fourth heat dissipation member 267. The width of the third heat dissipation member 265 and the fourth heat dissipation member 267 is the same as the width of the first heat dissipation member 261 and the second heat dissipation member 263. The first, second, third and fourth heat dissipation members extend vertically from the rear surface 22 to form a hollow rectangular circle.

[0035] The first portion 16 of the bottom plate 14 corresponding to the heat dissipation portion 26 has a plurality of small ventilation holes penetrating through the front surface 20 and the rear surface 22. The portion of the bottom plate 14 with the plurality of small ventilation holes is actually the portion of the bottom plate 14 extending outside the housing of the brake caliper 40.

[0036] In the embodiment shown in the figure, the ventilation holes are circular, the diameter of the large ventilation holes is within the range of 10 mm or less, and the diameter of the small ventilation holes is within the range of 2-5 mm. In other embodiments of the utility model, the ventilation holes can also be triangular, rectangular or other shaped holes.

[0037] The second portion of the bottom plate 14 of the heat dissipation structure 12 is provided with a friction lining attachment area 24 , and the friction lining 30 is designed to be fittedly attached to the friction lining attachment area 24 .

[0038] The brake caliper 40 proposed in the embodiment of the utility model includes a housing, at least one piston arranged in the housing, and an inner cavity of the housing. The brake caliper also includes: the bicycle brake mechanism 10 described above in the present application, and the automatic bicycle brake mechanism 10 is assembled in the inner cavity of the housing. Two heat dissipation structures 12 are at least partially arranged in the inner cavity of the housing, and the friction pads 30 on the heat dissipation structures 12 are arranged oppositely, and the heat dissipation portion 26 of each heat dissipation structure 12 is arranged outside the housing.

[0039] A positioning block is provided on the base plate 14 of the heat dissipation structure 12 in an area outside the friction pad attachment area 24. This is because the friction pad is attached to the base plate 14 at a certain distance above the base plate. The positioning block can help the brake mechanism 10 to be better positioned when assembled into the inner cavity of the brake caliper 40 and work under the action of the piston.

[0040] The bicycle brake mechanism of the embodiment of the utility model can quickly reduce the temperature of the brake disc during friction by increasing the heat dissipation area, thereby extending the service life of the brake disc and the friction lining.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat dissipation structure for a bicycle brake mechanism, characterized in that: include: A bottom plate, comprising a first portion located at an upper portion and a second portion located at a lower portion, wherein a width of the first portion is less than or equal to a width of the second portion; The base plate includes a front surface and a rear surface on both sides of the plate, and the second portion of the base plate is provided with a friction pad attachment area on the front surface so that a friction pad is attached to the friction pad attachment area of ​​the front surface; as well as, The first part of the bottom plate is provided with a heat dissipation portion extending vertically from the rear surface, the width of the heat dissipation portion is consistent with the width of the first part of the bottom plate, and the heat dissipation portion is provided with a plurality of ventilation holes.

2. The heat dissipation structure according to claim 1, characterized in that: The heat dissipation part includes a first heat dissipation member and a second heat dissipation member extending vertically from the rear surface, the first heat dissipation member and the second heat dissipation member are arranged in parallel and spaced a certain distance apart, at least one of the first heat dissipation member and the second heat dissipation member is provided with two or more large ventilation holes, and the width of the first heat dissipation member and the second heat dissipation member is consistent with the width of the first part of the base plate.

3. The heat dissipation structure according to claim 2, characterized in that: The heat dissipation part also includes a third heat dissipation member and a fourth heat dissipation member extending vertically from the rear surface. The third heat dissipation member and the fourth heat dissipation member are arranged in parallel and spaced a certain distance apart. The third heat dissipation member and the fourth heat dissipation member are perpendicular to the first heat dissipation member and the second heat dissipation member. At least one of the third heat dissipation member and the fourth heat dissipation member is provided with a large ventilation hole.

4. The heat dissipation structure according to claim 2 or 3, characterized in that: The first heat sink comprises a plate-shaped member with two or more large ventilation holes, which is arranged at the upper end of the bottom plate; and / or, The second heat sink is provided with a plurality of small ventilation holes, and the second heat sink comprises a special-shaped plate-shaped member formed according to assembly requirements.

5. The heat dissipation structure according to claim 4, characterized in that: The shape of the ventilation holes is circular, the diameter of the large ventilation holes is within the range of 10 mm or less, and the diameter of the small ventilation holes is within the range of 2-5 mm.

6. The heat dissipation structure according to claim 3, characterized in that: The first, second, third and fourth heat dissipating members vertically extend from the rear surface and are formed into hollow rectangular circles.

7. The heat dissipation structure according to claim 6, characterized in that: A plurality of small ventilation holes penetrating through the front surface and the rear surface are formed in the area of ​​the bottom plate where the heat dissipation portion is arranged.

8. The heat dissipation structure according to claim 1, characterized in that: The friction lining is adhered to the friction lining attachment area by glue.

9. A bicycle brake mechanism, characterized in that: The invention comprises a heat dissipation structure according to any one of claims 1 to 8 and a friction lining adhered to the friction lining attachment area.

10. A brake caliper comprising a housing, at least one piston disposed in the housing, and an inner cavity of the housing, characterized in that: The brake caliper also includes: two bicycle brake mechanisms according to claim 9, the automatic bicycle brake mechanism is assembled in the inner cavity of the shell, wherein the heat dissipation structures of the two bicycle brake mechanisms are at least partially arranged in the inner cavity of the shell, and the friction pads on the heat dissipation structures are arranged opposite to each other, and the heat dissipation part of each heat dissipation structure is arranged on the outside of the shell.

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