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KR-20260062280-A - HIGH STRENGTH ASYMMETRIC BRAKE CALIPER WITH CENTER BRACE

KR20260062280AKR 20260062280 AKR20260062280 AKR 20260062280AKR-20260062280-A

Abstract

A brake caliper according to one embodiment of the present disclosure may include a body comprising a first body and a second body coupled to the first body to form an asymmetrical exterior, a pair of brake pads disposed in an internal space defined by the first body and the second body and arranged to press a disc inserted into the internal space, a pad spring seated on the pair of brake pads and arranged to elastically support the pair of brake pads, and a center brace coupled to the body to form an exterior and arranged to fix the pad spring.

Inventors

  • 김민조
  • 이준모

Assignees

  • 주식회사 네오테크

Dates

Publication Date
20260507
Application Date
20241029

Claims (11)

  1. A body comprising a first body and a second body combined with the first body to form an asymmetric appearance; A pair of brake pads disposed in an internal space defined by the first body and the second body, and arranged to press a disc inserted into the internal space; A pad spring positioned on the aforementioned pair of brake pads and arranged to elastically support the aforementioned pair of brake pads; and A brake caliper comprising a center brace that is coupled to the body to form an exterior and is provided to secure the pad spring.
  2. In claim 1, The above pad spring is, A brace mounting portion provided extending upward so as to allow the center brace to be fitted; and A brake caliper comprising a pad support portion formed by extending in both directions along a first reference line from the brace mounting portion, wherein the end portion extends in both directions along a second reference line crossing the first reference line to support the pair of brake pads.
  3. In claim 2, The above pad support is, A brake caliper elastically supporting at least four regions on the above pair of brake pads.
  4. In claim 3, A brake caliper further comprising a pad guide pin coupled to at least one of the first body and the second body, penetrating the pair of brake pads, providing a pressure path when the pair of brake pads press the disc, and arranged to be seated on the pad support portion.
  5. In claim 4, The end of the above-mentioned pad support is, A brake caliper extending in a direction along the second reference line crossing the pair of brake pads, supporting the pair of brake pads at the bottom, and arranged so that the pad guide pin is seated at the top.
  6. In claim 5, The above center brace is, A brake caliper detachably coupled to each of the first body and the second body.
  7. In claim 6, A brake caliper comprising a plurality of piston modules that move each of the pair of brake pads inward within the internal space, wherein the effective area for moving at least one of the pair of brake pads is provided differently from each other.
  8. In claim 7, The above plurality of piston modules are, A brake caliper arranged sequentially in order of largest effective area based on the rotational direction of the above-mentioned disc, and positioned on a virtual arc with a radius of 150 mm to 165 mm.
  9. In claim 8, The above plurality of piston modules are, It includes a first piston module, a second piston module, and a third piston module forming different effective areas, The first piston module has a diameter of 28 mm to 32 mm, and The second piston module has a diameter of 32 mm to 36 mm, and The above third piston module has a diameter of 36 mm to 40 mm, and A brake caliper in which the total effective area formed by the first piston module, the second piston module, and the third piston module is formed to be 5300 mm² to 5700 mm².
  10. In claim 9, The above brake pad is, A brake caliper having a contact area with the above-mentioned disc formed to be 10,000 mm² to 12,000 mm².
  11. In claim 10, The above body is, A brake caliper configured to be mounted with an external bracket.

Description

High Strength Asymmetric Brake Caliper with Center Brace High Strength Asymmetric Brake Caliper with Center Brace The present disclosure relates to a brake caliper applicable to a vehicle brake system, and specifically, to an asymmetric brake caliper in which rigidity is reinforced by the application of a center brace and the brake pad spring is effectively fixed to enable stable braking even during high-speed driving. Brake calipers are components that play a crucial role in a vehicle's braking system, working alongside disc brakes for deceleration and stopping. The caliper generates friction by pressing brake pads against the disc, thereby reducing the vehicle's speed or bringing it to a stop. Generally, brake calipers are classified into opposed calipers and floating (sliding) calipers. Opposed calipers feature a structure designed so that pistons on both sides of the caliper symmetrically compress the brake pads against both sides of the disc. This design distributes braking force evenly, providing strong braking performance and high stability; they are primarily used in high-performance vehicles and motorsports cars. While opposed calipers offer the advantage of evenly distributing brake pad wear, they have disadvantages such as high manufacturing costs and increased weight due to their complex structure and the inclusion of multiple pistons. In particular, symmetrical designs may require additional reinforcement to enhance rigidity, which can lead to an increase in caliper weight. A sliding caliper is a structure in which a piston is located on one side of the caliper, and the caliper slides to press a fixed brake pad on the opposite side against the disc. This design is widely used in commercial vehicles because it has a simpler structure, lower manufacturing costs, and can be lightweight compared to a counter-type caliper. However, due to the nature of the sliding method, brake pad wear may be uneven, and braking force may be unevenly distributed during high-speed driving, resulting in lower rigidity and reduced braking performance compared to a counter-type caliper. Critical rigidity and the uniformity of braking force distribution are key factors in brake caliper design. It is necessary to maintain caliper rigidity to withstand the high pressure generated during braking; particularly in high-performance vehicles, caliper rigidity plays a crucial role in maintaining stable braking performance. Insufficient rigidity can lead to caliper deformation during braking, hindering uniform contact between the brake pad and the disc. This can result in reduced braking performance and cause uneven wear on both the pad and the disc. Conventional opposed and floating calipers each have their own advantages and disadvantages, and they have limitations in terms of braking force distribution and rigidity. Opposed calipers provide high rigidity but suffer from increased weight and manufacturing costs due to their complex structure, while floating calipers allow for weight reduction but present issues of insufficient rigidity and uneven braking force during high-speed driving. Furthermore, calipers are generally designed symmetrically, making it difficult to distinguish between left and right, which causes inconvenience during maintenance; additional rigidity reinforcement designs may also be required in high-performance vehicles. Furthermore, another problem with conventional brake calipers stems from the structural simplicity of the brake pad springs. While pad springs serve to secure the brake pads, the absence of a separate fixing mechanism or a simple design can lead to pad wobbling or noise during high-speed driving. This results in reduced braking performance, and this issue can have a severe impact, particularly in high-performance vehicles such as sports cars. FIG. 1 is an overall perspective view showing a brake caliper according to one embodiment of the present disclosure. FIG. 2 is an exploded perspective view showing a brake caliper according to one embodiment of the present disclosure. FIG. 3 is an exploded perspective view showing the combination of a center brace and a pad spring according to one embodiment of the present disclosure. FIG. 4 is a side view showing a pad spring supporting a brake pad according to one embodiment of the present disclosure. FIG. 5 is an exploded perspective view showing the combined relationship of a center brace, a pad spring, a pad guide pin, and a brake pad in a brake caliper according to one embodiment of the present disclosure. FIG. 6 is a longitudinal cross-sectional view showing the effective area of a piston module according to one embodiment of the present disclosure. FIG. 7 is a side view showing the area where a brake pad can contact a disc according to one embodiment of the present disclosure. FIG. 8 is a drawing showing an area where an external bracket is mounted according to one embodiment of the present disclosure. FIG. 9 is a drawing showing the structura