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BR-112023022178-B1 - BRAKE CALIPER, AND, VEHICLE

BR112023022178B1BR 112023022178 B1BR112023022178 B1BR 112023022178B1BR-112023022178-B1

Abstract

BRAKE CALIPER, AND VEHICLE. A brake caliper (1) is provided. The brake caliper (1) includes: a caliper body (100) and a relief screw (200). A brake disc groove (110) and a piston cylinder (120) are built into the caliper body. A brake fluid distribution line (130) and a relief channel (140) are built into a wall of the caliper body. The brake fluid distribution oil line is in communication with the piston cylinder. The relief channel is in communication with one end of the brake fluid distribution oil line in the direction of the length of the piston body. A relief port (150) is provided on one side of the caliper body in the direction of the thickness, and the relief port is in communication with the relief channel. A relief screw is mounted on the relief port on the side of the caliper body, for control of the opening or closing of the relief port. The brake caliper has advantages such as good heat dissipation, high stability, simple exhaust operation, high exhaust efficiency, and so on. A vehicle that has the same caliper (...).

Inventors

  • Weizhi FENG
  • Xiaoren PENG
  • Xu Zhang
  • Chuanbo Li
  • Feilin ZHAO

Assignees

  • BYD COMPANY LIMITED

Dates

Publication Date
20260310
Application Date
20220426
Priority Date
20210628

Claims (10)

  1. 1. Brake caliper (1), characterized in that the brake caliper (1) comprises: a caliper body (100), a brake disc groove (110) and a piston cylinder (120) which are constructed in the caliper body (100), a brake fluid distribution oil line (130) and an exhaust channel (140) which are constructed in a wall of the caliper body (100), wherein the brake fluid distribution oil line (130) communicates with the piston cylinder (120), the exhaust channel (140) is in communication with one end of the brake fluid distribution oil line (130) in a direction along the length of the caliper body (100), an exhaust port (150) is provided on one side of the caliper body (100) in a direction along the thickness, and the exhaust port (150) is in communication with the exhaust channel (140); an exhaust screw (200), wherein the exhaust screw (200) is mounted on the exhaust port (150) on the body side of the clamp (100), to control the opening and closing of the exhaust port (150).
  2. 2. Brake caliper (1) according to claim 1, characterized in that the caliper body (100) comprises: a first caliper body (101) and a second caliper body (102), wherein the first caliper body (101) and the second caliper body (102) are jointly fixed to define the groove of the brake disc (110), the piston cylinder (120) is formed in the first caliper body (101) and in the second caliper body (102), the brake fluid distribution oil line (130) is formed in the first caliper body (101) and in the second caliper body (102), the exhaust channel (140) and the exhaust port (150) are formed in the second caliper body (102), and the exhaust screw (200) is mounted in the second caliper body (102).
  3. 3. Brake caliper (1) according to claim 2, characterized in that the brake fluid distribution oil line (130) comprises: a first oil line (131) and a second oil line (132), wherein the first oil line (131) is formed in the first caliper body (101), the second oil line (132) is formed in the second caliper body (102) and is in communication with the first oil line (131), and the exhaust channel (140) is in communication with the second oil line (132).
  4. 4. Brake caliper (1) according to claim 3, characterized in that the first oil line (131) and the second oil line (132) are arranged symmetrically with respect to a junction surface between the first caliper body (101) and the second caliper body (102).
  5. 5. Brake caliper (1) according to claim 3 or 4, characterized in that each of the first oil line (131) and the second oil line (132) comprises: an oil injection line (133), wherein the oil injection line (133) extends along the length direction of the brake caliper body and is in communication with a lower portion of the piston cylinder (120); a first oil communication line (134), wherein the first oil communication line is located on one side of the piston cylinder (120) in the length direction of the caliper body, the first oil communication line is arranged at an angle relative to the oil injection line (133), one end of the first oil communication line is in communication with the oil injection line (133) and the other end of the first oil communication line passes through the junction surface between the first caliper body (101) and the second caliper body (102); and a second oil communication line (135), wherein the second oil communication line is located on the other side of the piston cylinder (120) in the direction of the length of the clamp body, the second oil communication line is arranged at an angle to the oil injection line (133), one end of the second oil communication line is in communication with the oil injection line (133) and the other end of the second oil communication line passes through the junction surface between the first clamp body (101) and the second clamp body (102), wherein the exhaust channel (140) is in communication with the second oil communication line of the second clamp body (102).
  6. 6. Brake caliper (1) according to claim 5, characterized in that the brake caliper (1) further comprises: an oil seal plug (210), two ends of the oil injection line (133) that are open, a threaded hole that is built into the oil injection line (133), and the oil seal plug that is mounted in the threaded hole.
  7. 7. Brake caliper (1) according to claim 5 or 6, characterized in that it further comprises: a first sealing ring (136), wherein a first sealing groove (137) is constructed on the junction surface between the first caliper body (101) and the second caliper body (102), and the first sealing ring is disposed in the first sealing groove and surrounds the other end of the first oil communication line; and a second sealing ring (138), wherein a second sealing groove (139) is constructed on the junction surface between the first caliper body (101) and the second caliper body (102), and the second sealing ring is disposed in the second sealing groove and surrounds the other end of the second oil communication line.
  8. 8. Brake caliper (1) according to any one of claims 1 to 7, characterized in that the exhaust channel (140) is arranged parallel to an axial direction of the piston cylinder (120).
  9. 9. Brake caliper (1) according to any one of claims 1 to 8, characterized in that the exhaust screw (200) has a first end and a second end, wherein the first end extends to the exhaust port (150), and the second end is exposed from the exhaust port (150); a first conical surface (220), wherein a central exhaust hole (230) and a vent hole (240) are constructed in the exhaust screw (200), the first conical surface is formed at the first end of the exhaust screw (200), the central exhaust hole extends in the direction of the length of the exhaust screw (200) and passes through the second end of the exhaust screw, and the vent hole is located on one side of the initial conical surface towards the second end, and is in communication with an outer peripheral wall of the exhaust screw (200) and the central exhaust hole; and a second conical surface (151) adapted to fit the first conical surface which is built into a lower wall of the exhaust port (150).
  10. 10. Vehicle, characterized in that it comprises the brake caliper (1), as defined in any one of claims 1 to 9.

Description

CROSS-REFERENCE TO RELATED REQUESTS [001] This disclosure is proposed based on and claims priority of Chinese Patent Application No. 202110718105.0, filed on June 28, 2021, which is incorporated herein in its entirety by reference. FIELD [002] The present invention relates to the field of vehicle technologies and, more specifically, to a brake caliper and a vehicle having the same. BACKGROUND [003] A brake caliper in the related art includes a caliper with an external oil line and a caliper with an internal oil line. [004] For the clamp with an external oil line, since an oil line tube is arranged on an external side of the clamp and mounted outside the clamp, and the thermal conductivity coefficient of air is lower than the thermal conductivity coefficient of metal, this arrangement of the oil line has a poor heat dissipation effect. Furthermore, since an oil tube is exposed on the outside and tends to be impacted, the safety stability is relatively low. [005] In the case of a caliper with an internal oil line, an exhaust outlet and an exhaust screw are usually arranged on each of the two sides of a piston cylinder. During exhaust, the caliper body needs to be tilted to correctly position the exhaust outlet and the exhaust screw. Thus, after the exhaust screw on one side of the brake caliper body completes exhaust, the other side still needs to exhaust, and the brake caliper body needs to be tilted to the other side. An exhaust operation is complex and efficiency is not high. SUMMARY [006] The present invention aims to solve at least one of the existing technical problems in the related art. Therefore, one objective of the present invention is to provide a brake caliper. The brake caliper has advantages of good heat dissipation effect, high stability, simple exhaust operation, high exhaust efficiency and so on. [007] The present invention further provides a vehicle with a brake caliper. [008] To implement the objective, a common aspect embodiment provides a brake caliper, which includes: a caliper body. A brake disc groove and a piston cylinder are built into the caliper body. A brake fluid distribution oil line and an exhaust channel are built into a wall of the caliper body. The brake fluid distribution oil line is in communication with the piston cylinder. The exhaust channel is in communication with one end of the brake fluid distribution oil line in the direction of the length of the piston body. An exhaust port is provided on one side of the caliper body in the direction of the thickness, and the exhaust port is in communication with the exhaust channel. The brake caliper additionally includes an exhaust screw. The exhaust screw is mounted on the exhaust port on the side of the caliper body, to control the opening and closing of the exhaust port. [009] The brake caliper according to this embodiment of the present invention has advantages of good heat dissipation effect, high stability, simple exhaust operation, high exhaust efficiency and the like. [0010] According to some specific embodiments of the present invention, the caliper body includes a first caliper body and a second caliper body. The first caliper body and the second caliper body are fixed together to jointly define the groove of the brake disc. The piston cylinder is formed in the first caliper body and in the second caliper body. The brake fluid distribution oil line is formed in the first caliper body and in the second caliper body. The exhaust channel and exhaust port are formed in the second caliper body. The exhaust bolt is screwed into the second caliper body. [0011] Additionally, the brake fluid distribution oil line includes a first oil line and a second oil line. The first oil line is formed in the first caliper body. The second oil line is formed in the second caliper body and is connected to the first oil line. The exhaust channel is connected to the second oil line. [0012] Furthermore, the first oil line and the second oil line are arranged symmetrically with respect to a joint surface between the first body of the gripper and the second body of the gripper. [0013] According to some specific embodiments of the present invention, each of the first oil line and the second oil line includes an oil injection line. The oil injection line extends lengthwise along the caliper body and communicates with a lower portion of the piston cylinder. Each of the first oil line and the second oil line further includes a first oil communication line. The first oil communication line is located on one side of the piston cylinder lengthwise along the caliper body. The first oil communication line is inclined relative to the respective oil injection line. One end of the first oil communication line communicates with the oil injection line, and the other end of the first oil communication line passes through the joint surface between the first brake caliper body and the second brake caliper body. Each of the first oil line and the second oil line