CN210034238U

CN210034238U - Calliper and vehicle

Info

Publication number: CN210034238U
Application number: CN201920617997.3U
Authority: CN
Inventors: 张忠伟; 李大为; 郑海雄; 程鹏
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-02-07
Anticipated expiration: 2029-04-30

Abstract

The utility model discloses a calliper, including the pincers body assembly and with but pincers body assembly sliding connection's first braking piece assembly and second braking piece assembly, calliper still includes at least one actuation the first electro-magnet and at least one actuation of first braking piece assembly the second electro-magnet of second braking piece assembly, first electro-magnet the second electro-magnet all with pincers body assembly is connected, the electro-magnet makes the quick action as required of braking piece assembly, breaks away from the brake disc rapidly, reduces the contact time of braking piece assembly and brake disc when non-braking, reduces braking piece assembly wearing and tearing and reduces the oil consumption of car.

Description

Calliper and vehicle

Technical Field

The utility model relates to a braking technical field especially relates to a calliper and vehicle.

Background

In the vehicle driving process, the brake is carried out by means of the calipers and the brake disc, the currently used calipers push the brake pad assembly and the brake disc to combine to generate friction by utilizing the hydraulic mechanism, mechanical energy is converted into heat energy of the brake, the brake is carried out after the brake is finished, the hydraulic structure returns, the brake pad assembly needs to be separated from the brake disc under the action of the spring, and a sufficient gap is given to the brake disc.

Disclosure of Invention

The present invention aims at solving at least one of the technical problems in the above-mentioned technology to a certain extent. Therefore, the first objective of the present invention is to provide a caliper and a vehicle, which compare with the prior art, the brake pad assembly that the caliper can be used to make the brake pad assembly return quickly and accurately.

To achieve the above object, an embodiment of an aspect of the present invention provides a caliper.

According to the utility model discloses calliper, including the pincers body assembly and with but pincers body assembly sliding connection's first braking piece assembly and second braking piece assembly, calliper still includes at least one actuation first electro-magnet and at least one actuation of first braking piece assembly the second electro-magnet of second braking piece assembly, first electro-magnet the second electro-magnet all with pincers body assembly is connected.

According to the utility model discloses a calliper of some embodiments, calliper includes the pincers body assembly, first braking piece assembly and second braking piece assembly, use the electro-magnet as first braking piece assembly and second braking piece assembly return mechanism, the electro-magnet can not produce material fatigue and influence the performance because of the operating time overlength, and the electro-magnet can also go up the electricity fast or cut off the power supply according to brake signal, the actuation perhaps loosens the braking piece assembly, make the quick action as required of braking piece assembly, break away from the brake disc rapidly, the contact time of braking piece assembly and brake disc when reducing the non-braking, reduce braking piece assembly wearing and tearing and reduce the fuel consumption of car.

According to some embodiments of the present invention, the caliper body assembly comprises a caliper bracket, the caliper bracket is a hollow structure shaped like a Chinese character 'ao', and two ends of the first brake pad assembly and the second brake pad assembly are slidably disposed at two opposite sides of the caliper bracket respectively; the caliper bracket is provided with a first limit guide rail used for keeping the movement direction of the first brake pad assembly at the joint with the first brake pad assembly, and the caliper bracket is provided with a second limit guide rail used for keeping the movement direction of the second brake pad assembly at the joint with the second brake pad assembly; a space for placing a vehicle brake disc is formed between the first brake pad assembly and the second brake pad assembly; the caliper body assembly further comprises a caliper body which is of a groove-shaped structure, the caliper body comprises a first caliper claw arranged on one side wall of the groove-shaped structure and a second caliper claw arranged on the other side wall of the groove-shaped structure, and the caliper body is connected with the caliper support; the first brake pad assembly, the second brake pad assembly disposed between the first jaw and the second jaw.

According to some embodiments of the present invention, the first electromagnet is connected to the caliper bracket, and the first electromagnet is disposed on a side of the first limit rail close to the caliper body; the second electromagnet is connected with the caliper support, and the second electromagnet is arranged on one side, close to the caliper body, of the second limiting guide rail.

According to some embodiments of the invention, the first jaw is provided with a piston, the piston is shorter than the first electromagnet from the first brake pad assembly at a minimum distance, and the second jaw is shorter than the second electromagnet from the second brake pad assembly at a minimum distance.

According to some embodiments of the caliper of the present invention, the first limit rail and the second limit rail are both two; the number of the first electromagnets corresponding to the first limit guide rails is two, and the number of the second electromagnets corresponding to the second limit guide rails is two.

According to the utility model discloses a calliper of some embodiments, first limit rail with the second limit rail is recess column structure.

According to some embodiments of the invention, the first brake shoe assembly is provided with a protrusion adapted to the first limit rail at the junction with the caliper bracket and the second brake shoe assembly is provided with a protrusion adapted to the second limit rail at the junction with the caliper bracket.

According to some embodiments of the present invention, the first brake pad assembly comprises a first friction pad, a first brake pad steel backing, and a first sound damping patch, the second brake pad assembly comprises a second friction pad, a second brake pad steel backing, and a second sound damping patch; the first friction plate is arranged on one side, away from the first jaw, of the first brake pad steel back, and the second friction plate is arranged on one side, away from the second jaw, of the second brake pad steel back; the first silencing piece is arranged on one side, close to the first jaw, of the first brake pad steel back, and the second silencing piece is arranged on one side, close to the second jaw, of the second brake pad steel back.

According to some embodiments of the present invention, a side of the first friction plate away from the steel back of the first brake pad is provided with a first groove and a first chamfer for noise reduction, the first groove is disposed at a middle position of the first friction plate, and the first chamfer is disposed at two sides of the first friction plate; and a second groove and a second chamfer angle for silencing are arranged on one side, away from the steel back of the second brake block, of the second friction plate, the second groove is arranged in the middle of the second friction plate, and the second chamfer angle is arranged on two sides of the second friction plate.

In order to achieve the above objects, an embodiment of another aspect of the present invention provides a vehicle including the above caliper.

According to the utility model discloses a vehicle, the vehicle includes above-mentioned calliper, calliper includes pincers body assembly, first braking piece assembly and second braking piece assembly, use the electro-magnet as first braking piece assembly and second braking piece assembly return mechanism, the electro-magnet can not produce material fatigue because the operating time overlength and influence the performance, and the electro-magnet can also go up the electricity fast or cut off the power supply according to brake signal, the actuation perhaps loosens the braking piece assembly, make the quick action as required of braking piece assembly, break away from the brake disc rapidly, the contact time of braking piece assembly and brake disc when reducing the non-braking, reduce braking piece assembly wearing and tearing and reduce the fuel consumption of car.

Drawings

Fig. 1 is a schematic structural view of a caliper according to an embodiment of the present invention;

figure 2 is a schematic structural view of a front view of a caliper according to an embodiment of the present invention;

FIG. 3 is a schematic structural view taken along line A-A of FIG. 2;

FIG. 4 is a schematic structural view of a caliper bracket and brake pad assembly according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of the front view of FIG. 4;

FIG. 6 is an enlarged view at I of FIG. 5;

FIG. 7 is a schematic structural view of the top view of FIG. 4;

fig. 8 is a schematic structural diagram of a vehicle according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The following describes a caliper and a vehicle according to embodiments of the present invention with reference to the drawings.

As shown in fig. 1 and 3, a caliper 100 according to some embodiments of the present invention includes a caliper body assembly 1, and a first brake pad assembly 4 and a second brake pad assembly 5 slidably connected to the caliper body assembly 1, wherein the caliper 100 further includes at least one first electromagnet 31 for attracting the first brake pad assembly 4 and at least one second electromagnet 32 for attracting the second brake pad assembly 5, and the first electromagnet 31 and the second electromagnet 32 are both connected to the caliper body assembly 1.

The caliper 100 comprises a caliper body assembly 1, a first brake pad assembly 4 and a second brake pad assembly 5, electromagnets are used as return mechanisms of the first brake pad assembly 4 and the second brake pad assembly 5, the electromagnets cannot influence performance due to material fatigue caused by overlong working time, and can be quickly electrified or powered off according to brake signals, so that the brake pad assembly is attracted or loosened, the brake pad assembly can quickly move as required, the brake pad is quickly separated from a brake disc, the contact time between the brake pad assembly and the brake disc during non-braking is shortened, the abrasion of the brake pad assembly is reduced, and the oil consumption of an automobile is reduced.

As shown in fig. 2 and 3, in particular, the caliper body assembly 1 includes a caliper bracket 11, the caliper bracket 11 is a hollow structure in a shape like a Chinese character 'ao', and two ends of the first brake pad assembly 4 and the second brake pad assembly 5 are slidably disposed on two opposite sides of the caliper bracket 11, respectively; the caliper bracket 11 is provided with a first limit guide rail 111 at the connection position with the first brake pad assembly 4 for maintaining the moving direction of the first brake pad assembly 4, and the caliper bracket 11 is provided with a second limit guide rail 112 at the connection position with the second brake pad assembly 5 for maintaining the moving direction of the second brake pad assembly 5; the first brake pad assembly 4 and the second brake pad assembly 5 form a space therebetween for placing a vehicle brake disc.

Specifically, the caliper body assembly 1 further comprises a caliper body 12, the caliper body 12 is in a groove-shaped structure, the caliper body 12 comprises a first jaw 12a arranged on one side wall of the groove-shaped structure and a second jaw 12b arranged on the other side wall of the groove-shaped structure, and the caliper body 12 is connected with the caliper bracket 11; the first brake pad assembly 4 and the second brake pad assembly 5 are disposed between the first jaw 12a and the second jaw 12 b.

As shown in fig. 7, the caliper bracket 11 has a hollow structure in a shape of a Chinese character 'ao', and both ends of the first brake pad assembly 4 and the second brake pad assembly 5 are slidably coupled to opposite sides of the caliper bracket 11, respectively, that is, the first brake pad assembly 4 and the second brake pad assembly 5 are coupled to both sides of the caliper bracket 11 across a central hollow portion of the caliper bracket 11, so that the first brake pad assembly 4 and the second brake pad assembly 5 can maintain sufficient stability during movement.

The caliper body assembly 1 further includes a caliper body 12, the caliper body 12 is configured as a groove, a first jaw 12a and a second jaw 12b are respectively disposed on two side walls of the caliper body 12, and the first brake pad assembly 4 and the second brake pad assembly 5 are disposed between the first jaw 12a and the second jaw 12b, it can be understood that a gap is formed between the first brake pad assembly 4 and the second brake pad assembly 5, and the position of the gap corresponds to the position of the hollow structure of the caliper bracket 11, so that a brake disc of an automobile can be placed between the first brake pad assembly 4 and the second brake pad assembly 5 from the hollow structure of the caliper bracket 11, so that the first brake pad assembly 4 and the second brake pad assembly 5 move toward the middle under an external force when a braking demand is met, until the two brake pad assemblies clamp and brake the automobile brake disc.

As shown in fig. 4, 5 and 6, it can be understood that the caliper bracket 11 is provided with a first limit rail 111 and a second limit rail 112 at the connection with the first brake pad assembly 4 and the second brake pad assembly 5, which not only can ensure the moving direction of the first brake pad assembly 4 and the second brake pad assembly 5, but also can limit the movement of the first brake pad assembly 4 and the second brake pad assembly 5 perpendicular to the moving direction.

Preferably, the first curb rail 111 and the second curb rail 112 are groove-like structures. .

Preferably, the first brake pad assembly 4 is provided with a protrusion corresponding to the first stopper rail 111 at a connection point with the caliper bracket 11, and the second brake pad assembly 5 is provided with a protrusion corresponding to the second stopper rail 112 at a connection point with the caliper bracket 11.

It can be understood that the connection between the caliper bracket 11 and the brake pad assembly is provided with a first and a second limiting

rails

111 and 112 having a groove shape, and correspondingly, the brake pad assembly is provided with a protruding portion corresponding to the first and the second limiting

rails

111 and 112 having a groove shape at a corresponding position, which can effectively ensure the moving direction of the brake pad assembly, when the caliper 100 is performing braking, since the brake disc rotating at a high speed will contact the brake pad assembly, a force along the tangential direction of the brake disc will be applied to the brake pad assembly, and this force is perpendicular to the moving direction of the brake pad assembly, so that the protruding portion of the first brake pad assembly 4 is engaged with the first limiting rail 111, and the protruding portion of the second brake pad assembly 5 is engaged with the second limiting rail 112, which can not only ensure the moving direction of the brake pad assembly, movement of the brake pad assembly in a direction perpendicular to the direction of movement can also be limited.

Taking the first brake pad assembly 4 as an example, two ends of the first brake pad assembly 4 are slidably connected to the caliper bracket 11, a first limit rail 111 in a groove shape is provided at a connection portion between the caliper bracket 11 and the first brake pad assembly 4, correspondingly, the first brake pad assembly 4 is provided with a protruding portion adapted to the first limit rail 111 at a corresponding position, the first brake pad assembly 4 can slide along the first limit rail 111, when a vehicle brakes, the first brake pad assembly 4 receives a force perpendicular to a movement direction of the first brake pad assembly 4 from a vehicle brake disc, and the first limit rail 111 and the protruding portion engaged therewith can effectively prevent a movement tendency of the first brake pad assembly 4 perpendicular to the movement direction of the first brake pad assembly 4, and can ensure an accurate movement along the first limit rail 111, the structure and manner of movement of the second brake pad assembly 5 are also the same and will not be discussed further herein.

It is to be understood that the first and

second curb rails

111 and 112 can be dovetail grooves, etc., and it is to be understood that the first and

second curb rails

111 and 112 are not limited to groove-like structures, but can be a protrusion-like structure, and correspondingly, the corresponding portion of the brake pad assembly can be a groove-like structure.

Specifically, the first electromagnet 31 is connected to the caliper bracket 11, and the first electromagnet 31 is disposed on one side of the first limit rail 111 close to the caliper body 12; the second electromagnet 32 is connected with the caliper bracket 11, and the second electromagnet 32 is arranged on one side of the second limit guide rail 112 close to the caliper body 12.

Specifically, the first jaw 12a is provided with a piston 2, a minimum distance of the piston 2 from the first brake pad assembly 4 is shorter than a minimum distance of the first electromagnet 31 from the first brake pad assembly 4, and a minimum distance of the second jaw 12b from the first brake pad assembly 4 is shorter than a minimum distance of the second electromagnet 32 from the second brake pad assembly 5.

Preferably, the electromagnets are arranged on one side of each guide rail close to the caliper body 12, so that when there is no braking demand, the electromagnets can rapidly generate a force close to the caliper body 12 to the brake pad assembly, so that the brake pad assembly can be rapidly separated from an automobile brake disc, friction required by non-braking is reduced, the driving performance of the automobile is improved, and oil consumption is reduced.

Preferably, there are two of the first curb rail 111 and the second curb rail 112; two first electromagnets 31 are provided corresponding to the first stopper rail 111, and two second electromagnets 32 are provided corresponding to the second stopper rail 112.

Because both ends of each brake pad assembly are slidably connected with the caliper bracket 11, it can be understood that both ends of each brake pad assembly have a protrusion, and the caliper bracket 11 has two corresponding limiting rails, so preferably, a corresponding electromagnet is disposed at an end surface of each limiting rail near one side of the caliper body 12, so that each brake pad assembly can be subjected to the action force of the two electromagnets to effectively enhance the action force and accelerate the movement speed of the brake pad assembly, and because the electromagnets are relatively symmetrical in position, the brake pad assembly can be uniformly stressed, so that the brake pad assembly can effectively and stably move, and the protrusion of the brake pad assembly is not blocked in the limiting rails due to the non-uniform stress of each part of the brake pad assembly caused by the non-uniform movement speed, thereby affecting the smoothness of the movement and the speed of the dragging movement, even if the device is jammed.

When the vehicle is not braking, the first brake pad assembly 4 and the second brake pad assembly 5 need to be far away from the brake disc, that is, the first brake pad assembly 4 needs to be close to the piston 2, and the second brake pad assembly 5 needs to be close to the second jaw 12b, so that the first brake pad assembly 4 and the second brake pad assembly 5 can keep enough clearance with the brake pad assembly placed therebetween, it can be understood that the first brake pad assembly 4 and the second brake pad assembly 5 are subjected to the attraction force of the electromagnets, that is, in order to ensure that the first brake pad assembly 4 and the second brake pad assembly 5 are far away from the brake disc, the first electromagnet 31 and the second electromagnet 32 are both electrified, the first electromagnet 31 generates a force towards the piston 2 on the first brake pad assembly 4, and the second electromagnet 32 generates a force towards the second jaw 12b on the second brake pad assembly 5 When braking is required, the first electromagnet 31 and the second electromagnet 32 are de-energized, no attraction force is generated on the first brake pad assembly 4 and the second brake pad assembly 5, and at the same time, the piston 2 will generate a force towards the brake disc on the first brake pad assembly 4 until the first brake pad assembly 4 contacts with the brake disc, at which time the piston 2 will continue to move, because the first brake pad assembly 4 can not move any more, at which time the piston 2 will drive the caliper body 12 to move relative to the caliper support 11, at which time the second caliper 12b will drive the second brake pad assembly 5 to move towards the brake disc with the movement of the caliper body 12 until the second brake pad assembly 5 contacts with the brake disc, at which time the first brake pad assembly 4 and the second brake pad assembly 5 both contact with the brake disc, the friction force is generated, the kinetic energy is consumed for braking, when the braking demand disappears, the piston 2 does not generate acting force, meanwhile, the first electromagnet 31 and the second electromagnet 32 are electrified, the first brake pad assembly 4 and the second brake pad assembly 5 generate suction force, the first brake pad assembly 4 and the second brake pad assembly 5 which are in contact with the brake disc are rapidly pulled to the direction far away from the brake disc, and the brake pad assembly is rapidly and accurately returned, so that the dragging torque is reduced, the fuel consumption is reduced, and the driving performance is improved.

Preferably, the minimum distance between the piston 2 and the first brake pad assembly 4 is shorter than the minimum distance between the first electromagnet 31 and the first brake pad assembly 4, and the minimum distance between the second jaw 12b and the second brake pad assembly 5 is shorter than the minimum distance between the second electromagnet 32 and the second brake pad assembly 5, it is understood that, in this case, when the first brake pad assembly 4 moves toward the caliper body 12 under the force of the first electromagnet 31 and the second brake pad assembly 5 moves toward the caliper body 12 under the force of the second electromagnet 32, the movement of the first brake pad assembly 4 is stopped by the piston 2 because the piston 2 is closer to the first brake pad assembly 4 than the first electromagnet 31 and the second jaw 12b is closer to the second brake pad assembly 5 than the second electromagnet 32, The movement of the second brake pad assembly 5 is prevented by the second jaw 12b, i.e. when there is no braking demand, the brake pad assembly is attracted by the force of the electromagnet and is blocked by the caliper body 12 to abut against the caliper body 12 under the combined action of the force of the electromagnet and the caliper body 12.

Specifically, when there is no braking demand, the first brake pad assembly 4 abuts against the piston 2 under the combined action of the force of the first electromagnet 31 and the piston 2, and the second brake pad assembly 5 abuts against the second jaw 12b under the combined action of the force of the second electromagnet 32 and the second jaw 12 b.

Specifically, the first brake plate assembly 4 includes a first friction plate 41, a first brake plate steel back 42 and a first noise damping sheet 43, and the second brake plate assembly 5 includes a second friction plate 51, a second brake plate steel back 52 and a second noise damping sheet 53; the first friction plate 41 is disposed on the side of the first brake pad steel back 42 away from the first jaw 12a, and the second friction plate 51 is disposed on the side of the second brake pad steel back 52 away from the second jaw 12 b; the first damper piece 43 is provided on the first brake-piece steel back 42 on the side closer to the first jaw 12a, and the second damper piece 53 is provided on the second brake-piece steel back 52 on the side closer to the second jaw 12 b.

A first groove 411 and a first chamfer 412 for noise reduction are arranged on one side, away from the first brake block steel back 42, of the first friction plate 41, the first groove 411 is arranged in the middle of the first friction plate 41, and the first chamfer 412 is arranged on two sides of the first friction plate 41; a second groove 511 and a second chamfer 512 for noise reduction are arranged on one side of the second friction plate 51, which is far away from the second brake pad steel back 52, the second groove 511 is arranged in the middle of the second friction plate 51, and the second chamfer 512 is arranged on two sides of the second friction plate 51.

It can be understood that, because the brake pad assembly needs to contact with the vehicle brake disc to convert mechanical energy into heat energy, in order to increase friction force, the brake pad assembly is provided with a friction plate on one side contacting with the vehicle brake disc, and a large amount of noise is generated in the process of generating heat by friction between the friction plate and the vehicle brake disc, because a silencing device cannot be effectively added at the position, noise elimination from the source is very necessary, so after the brake pad steel back is connected with the friction plate, according to the mode of the whole connection assembly, the friction plate is provided with a groove and a chamfer and is added with a silencing plate, and noise in a certain frequency band is eliminated.

As shown in fig. 8, another embodiment of the present invention provides a vehicle 200, which includes the caliper 100.

According to the utility model discloses vehicle 200 includes above-mentioned calliper 100, calliper 100 includes pincers body assembly 1, first braking piece assembly 4 and second braking piece assembly 5, use electro-magnet 3 as first

braking piece assembly

4 and 5 return mechanisms of second braking piece assembly, electro-magnet 3 can not produce material fatigue because of the operating time overlength and influence the performance, and electro-magnet 3 can also go up the electricity fast or cut off the power supply according to brake signal, the actuation perhaps loosens the braking piece assembly, make the action that the braking piece assembly can be quick as required, break away from the brake disc rapidly, the contact time of braking piece assembly and brake disc when reducing the non-braking, reduce braking piece assembly wearing and tearing and reduce the fuel consumption of car.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A caliper (100) comprising a caliper body assembly (1) and first and second brake pad assemblies (4, 5) slidably connected to the caliper body assembly (1), characterized in that: the caliper (100) further comprises at least one first electromagnet (31) attracting the first brake pad assembly (4) and at least one second electromagnet (32) attracting the second brake pad assembly (5), and the first electromagnet (31) and the second electromagnet (32) are connected with the caliper body assembly (1).

2. Caliper (100) according to claim 1, characterized in that: the caliper body assembly (1) comprises a caliper bracket (11), the caliper bracket (11) is of a concave-shaped hollow structure, and two ends of the first brake pad assembly (4) and the second brake pad assembly (5) are respectively arranged on two opposite sides of the caliper bracket (11) in a sliding manner;

the caliper bracket (11) is provided with a first limit guide rail (111) used for keeping the movement direction of the first brake pad assembly (4) at the connection part with the first brake pad assembly (4), and the caliper bracket (11) is provided with a second limit guide rail (112) used for keeping the movement direction of the second brake pad assembly (5) at the connection part with the second brake pad assembly (5);

the first brake pad assembly (4) and the second brake pad assembly (5) form a space for placing a vehicle brake disc;

the caliper body assembly (1) further comprises a caliper body (12), the caliper body (12) is of a groove-shaped structure, the caliper body (12) comprises a first caliper claw (12 a) arranged on one side wall of the groove-shaped structure and a second caliper claw (12 b) arranged on the other side wall of the groove-shaped structure, and the caliper body (12) is connected with the caliper support (11);

the first brake pad assembly (4), the second brake pad assembly (5) are disposed between the first jaw (12 a) and the second jaw (12 b).

3. Caliper (100) according to claim 2, characterized in that: the first electromagnet (31) is connected with the caliper bracket (11), and the first electromagnet (31) is arranged on one side, close to the caliper body (12), of the first limiting guide rail (111);

the second electromagnet (32) is connected with the caliper bracket (11), and the second electromagnet (32) is arranged on one side, close to the caliper body (12), of the second limiting guide rail (112).

4. Caliper (100) according to claim 3, characterized in that: the first jaw (12 a) is provided with a piston (2), the minimum distance of the piston (2) from the first brake pad assembly (4) is shorter than the minimum distance of the first electromagnet (31) from the first brake pad assembly (4), and the minimum distance of the second jaw (12 b) from the second brake pad assembly (5) is shorter than the minimum distance of the second electromagnet (32) from the second brake pad assembly (5).

5. Caliper (100) according to claim 4, characterized in that: the number of the first limit guide rails (111) and the number of the second limit guide rails (112) are two; the number of the first electromagnets (31) arranged corresponding to the first limit guide rail (111) is two, and the number of the second electromagnets (32) arranged corresponding to the second limit guide rail (112) is two.

6. Caliper (100) according to claim 2, characterized in that: the first limit guide rail (111) and the second limit guide rail (112) are of groove-shaped structures.

7. Caliper (100) according to claim 6, characterized in that: the first brake pad assembly (4) is provided with a protruding part corresponding to the first limit rail (111) at the joint with the caliper bracket (11), and the second brake pad assembly (5) is provided with a protruding part corresponding to the second limit rail (112) at the joint with the caliper bracket (11).

8. Caliper (100) according to claim 5, characterized in that: the first brake plate assembly (4) comprises a first friction plate (41), a first brake plate steel back (42) and a first noise damping plate (43), and the second brake plate assembly (5) comprises a second friction plate (51), a second brake plate steel back (52) and a second noise damping plate (53);

the first friction plate (41) is arranged on the side, away from the first jaw (12 a), of the first brake pad steel back (42), and the second friction plate (51) is arranged on the side, away from the second jaw (12 b), of the second brake pad steel back (52);

the first silencing sheet (43) is arranged on the side of the first brake block steel back (42) close to the first jaw (12 a), and the second silencing sheet (53) is arranged on the side of the second brake block steel back (52) close to the second jaw (12 b).

9. Caliper (100) according to claim 8, characterized in that: a first groove (411) and a first chamfer (412) for noise reduction are arranged on one side, away from the first brake block steel back (42), of the first friction plate (41), the first groove (411) is arranged in the middle of the first friction plate (41), and the first chamfer (412) is arranged on two sides of the first friction plate (41);

and a second groove (511) and a second chamfer (512) for noise reduction are arranged on one side, away from the second brake block steel back (52), of the second friction plate (51), the second groove (511) is arranged in the middle of the second friction plate (51), and the second chamfer (512) is arranged on two sides of the second friction plate (51).

10. A vehicle (200), characterized by: the vehicle (200) comprises a caliper (100) according to any one of claims 1 to 9.