Brake caliper

Abstract

The brake caliper includes a brake caliper body (1) and an actuator (2). The actuator (2) includes an outer housing and a motor. The brake caliper body (1) is provided with a caliper body flange (1a). The caliper body flange (1a) extends radially. The caliper body flange (1a) is provided with a first fixing point and a second fixing point for attaching the outer housing. The motor and the second fixing point are located outside the brake caliper body (1). The brake caliper can reduce the risk of damage to the motor.

Description

Technical Field

[0001] The present invention belongs to the technical field of braking systems. Specifically, the present invention relates to a brake caliper.

Background Art

[0002] The motors used in electromechanical brakes are relatively large in volume and weight. In the conventional fixed form, a flange is added to the output end housing of the MGU (motor generator unit) and fixed to the caliper body with screws. The fixing point of the MGU is at the other end of the motor, and the motor is parallel to the output end housing. The motor is connected to the caliper body through the housing. The motor end is floating, and the MGU corresponds to a cantilever structure. Therefore, in the vibration situation, the amplitude of the motor end becomes large, and rocking is likely to occur at the motor end inside the motor casing, leading to mechanical fatigue. Also, since the motor is heavy and the center of gravity is higher than the fixing point, the fixing strength between the output end housing and the flange of the caliper body is insufficient, and in the vibration situation, the motor and electronic components are extremely likely to lose their functions.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The main purpose of the present invention is to solve at least one of the technical problems existing in the prior art. Therefore, the present invention provides a brake caliper aimed at reducing the risk of damage to the motor.

Means for Solving the Problems

[0004] To achieve the above object, the technical means used by the present invention are as follows. The present invention provides a brake caliper including a brake caliper body and an actuator, wherein the actuator includes an outer housing and a motor. The brake caliper body is provided with a caliper body flange. The caliper body flange extends radially. The caliper body flange is provided with a first fixing point and a second fixing point for attaching the outer housing. The motor and the second fixing point are located on the outside of the brake caliper body.

[0005] Preferably, the outer housing includes a first housing portion and a second housing portion. The first housing portion is connected to the caliper body flange at the first fixing point, and the second housing portion is connected to the caliper body flange at the second fixing point. The motor is located within the second housing portion.

[0006] Preferably, the first housing portion and the second housing portion are connected to the caliper body flange by screws, bolts, or rivets.

[0007] Preferably, both the first housing portion and the second housing portion are connected to the caliper body flange by at least one screw, bolt, or rivet.

[0008] Preferably, housing flanges are provided on the outside of the first housing portion and the second housing portion. The housing flanges are provided with through holes, and the caliper body flanges are provided with female threads.

[0009] Preferably, the caliper body flange is provided with a retraction hole for inserting the second housing portion.

[0010] Preferably, the second housing portion is cylindrical, and the retraction hole is round.

[0011] Preferably, the retraction hole is provided through the caliper body flange in the thickness direction. The axis of the retraction hole is parallel to the axis of the cylinder hole of the brake caliper body.

[0012] Preferably, the length of the second housing portion is greater than the depth of the retraction hole.

[0013] Preferably, the caliper body flange is provided with caliper body lugs. The caliper body lugs include holes, which are connected to guide pins or guide pin screws.

[0014] Preferably, the caliper body flange is provided with caliper body lugs. The caliper body lugs are connected to the caliper body flange. The flange surface is in contact with the outer housing.

[0015] Preferably, two caliper body lugs are provided. The two caliper body lugs are connected to the caliper body flange. [Effects of the Invention]

[0016] The brake caliper of the present invention increases the area of ​​the caliper body flange and directly fixes the motor to the caliper body, thereby equalizing the force applied to the motor and reducing mechanical damage to the motor caused by vibration. This effectively protects the motor and reduces the risk of motor failure.

[0017] This specification includes the following drawings. The contents of each drawing are as follows: [Brief explanation of the drawing]

[0018] [Figure 1] Figure 1 is a schematic exploded view of the brake caliper according to the present invention. [Figure 2] Figure 2 is a schematic diagram of the brake caliper body. [Modes for carrying out the invention]

[0019] Next, specific embodiments of the present invention will be described in more detail by referring to the drawings and describing examples. This is intended to help those skilled in the art to understand the concept and technical means of the present invention more completely, accurately, and deeply, and to facilitate their implementation.

[0020] As shown in Figures 1 and 2, the present invention provides a brake caliper including a brake caliper body 1, a motion conversion mechanism, and an actuator 2. The actuator 2 includes an outer housing, a motor, and a gear transmission mechanism. The gear transmission mechanism is connected to the output terminal of the motor, and the motor operates the gear transmission mechanism. The gear transmission mechanism transmits the rotational torque generated by the motor to the motion conversion mechanism, causing the motion conversion mechanism to perform a corresponding operation. The motion conversion mechanism, via the gear transmission mechanism, causes the rotational motion of the motor to cause rotational motion in the screw, and then converts this into linear motion in the piston, thereby realizing the braking and release functions of the brake caliper. The brake caliper body 1 is also provided with a caliper body flange 1a. The caliper body flange 1a extends radially. The caliper body flange 1a is provided with a first fixing point and a second fixing point for attaching the outer housing. The motor and the second fixing point are located on the outside of the brake caliper body 1.

[0021] Specifically, as shown in Figure 1, the caliper body flange 1a is fixedly attached to one end of the brake caliper body 1. The outer housing of the actuator 2 is fixedly attached to the caliper body flange 1a by screws 3. The outer housing has a hollow structure. The outer housing can simultaneously accommodate the motor and the gear transmission mechanism. Inside the brake caliper body 1 are the motion conversion mechanism and the inner and outer brake pads. The motion conversion mechanism is located in the cylinder bore of the brake caliper body 1. This structure is known to those skilled in the art and will not be described in detail here.

[0022] As shown in FIGS. 1 and 2, the outer housing of the actuator includes a first housing part 2a and a second housing part 2b that are connected to each other. The first housing part 2a extends outside the second housing part 2b. The first housing part 2a is connected to the caliper body flange 1a at the first fixed point. The second housing part 2b is connected to the caliper body flange 1a at the second fixed point. The motor is located in the internal cavity of the second housing part 2b, and the gear transmission mechanism is located in the internal cavity of the first housing part 2a. The second housing part 2b has a hollow cylindrical structure inside. Also, the internal cavity of the second housing part 2b is a cylindrical cavity.

[0023] As shown in FIGS. 1 and 2, the first housing part 2a and the second housing part 2b are connected to the caliper body flange 1a by screws 3. Flanges are provided on the outside of the first housing part 2a and the second housing part 2b. The flange of the housing is provided with through holes for inserting the screws 3, and the caliper body flange 1a is provided with female screw holes for inserting the screws 3. By directly fixing the housing to the brake caliper body 1 with the screws 3, the fixing becomes more firm and the vibration resistance is improved. Thereby, the force applied to the motor is made uniform, and the motor can be effectively protected, so that the motor is less likely to be damaged by vibration.

[0024] As shown in FIGS. 1 and 2, in this embodiment, both the first housing part 2a and the second housing part 2b are connected to the caliper body flange 1a by two screws 3. Accordingly, two female screw holes for inserting the screws 3 are provided at the first fixed point of the caliper body flange 1a. Also, two female screw holes for inserting the screws 3 are provided at the second fixed point of the caliper body flange 1a. The first fixed point and the second fixed point are arranged in order along the length direction of the caliper body flange 1a. The length direction of the caliper body flange 1a is perpendicular to the axial direction of the cylinder hole of the brake caliper body 1.

[0025] As shown in FIGS. 1 and 2, a brake caliper body flange 1a is provided with a retraction hole for inserting a second housing portion 2b. The second housing portion 2b is a cylinder, and the retraction hole is a cylindrical through-hole through which the second housing can be inserted. Moreover, the retraction hole is provided so as to penetrate in the thickness direction of the brake caliper body flange 1a. The axis of the retraction hole is parallel to the axis of the cylinder hole of the brake caliper body 1. The length of the second housing portion 2b is larger than the depth of the retraction hole. Therefore, by adding a flange structure to the brake caliper body and forming an annular structure surrounding the second housing portion 2b in the retraction hole and fitting the motor into the annular structure, the amplitude of the motor can be effectively reduced.

[0026] As shown in FIGS. 1 and 2, a brake caliper body lug 1b is provided on the brake caliper body flange 1a. The brake caliper body lug 1b is connected to the flange surface of the brake caliper body flange 1a. The flange surface contacts the surface of the outer housing. The flange surface is a plane perpendicular to the axis of the cylinder hole of the brake caliper body 1. A female screw hole for inserting a screw 3 is provided in the flange surface. By moving the position of the brake caliper body lug 1b upward, it is advantageous for taking the balance between the center of gravity of the motor and the whole.

[0027] As shown in FIGS. 1 and 2, two brake caliper body lugs 1b are provided. The two brake caliper body lugs 1b are connected to the brake caliper body flange 1a.

[0028] As described above, the present invention has been exemplarily described in combination with the drawings. Needless to say, the specific implementation of the present invention is not limited to the above method. All various improvements that are not substantial carried out using the method, concept and technical means of the present invention, or those directly applied to other situations without improving the above concept and technical means of the present invention fall within the protection scope of the present invention.

Explanation of Reference Numerals

[0029] 1 Brake caliper body 1a Brake caliper body flange 1b Caliper body lug 2 Actuators 3 screws 4. Inner brake pads 5 frames 6 Outer brake pads

Claims

1. A brake caliper comprising a brake caliper body and an actuator, wherein the actuator includes an outer housing and a motor, The brake caliper body is provided with a caliper body flange, the caliper body flange extends radially, the caliper body flange is provided with a first fixing point and a second fixing point for attaching the outer housing, the motor and the second fixing point are located outside the brake caliper body, The outer housing includes a first housing portion and a second housing portion, the first housing portion being connected to the caliper body flange at the first fixing point, the second housing portion being connected to the caliper body flange at the second fixing point, and the motor being located within the second housing portion. A brake caliper characterized in that the caliper body flange is provided with a retraction hole for inserting the second housing portion.

2. The brake caliper according to claim 1, characterized in that the first housing portion and the second housing portion are connected to the caliper body flange by screws, bolts, or rivets.

3. The brake caliper according to claim 2, characterized in that housing flanges are provided on the outside of the first housing portion and the second housing portion, through holes are provided in the housing flanges, and female threads are provided in the caliper body flange.

4. The brake caliper according to claim 1, characterized in that the second housing portion is cylindrical and the retraction hole is a round hole.

5. The brake caliper according to claim 4, characterized in that the retraction hole is provided through the caliper body flange in the thickness direction, and the axis of the retraction hole is parallel to the axis of the cylinder hole of the brake caliper body.

6. The brake caliper according to claim 1, characterized in that the length of the second housing portion is greater than the depth of the retraction hole.

7. The brake caliper according to any one of claims 1 to 6, characterized in that the caliper body flange is provided with a caliper body lug, the caliper body lug includes a hole, and the hole is connected to a guide pin or a guide pin screw.

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