Brake caliper and vehicle

Abstract

The utility model relates to the technical field of automobile braking, and discloses brake calipers and a vehicle. The brake caliper comprises a caliper support, two friction plates and two active return line springs, fixing pieces are arranged at the two ends of each friction plate, each fixing piece is provided with an installation insertion hole extending in the third direction, and a first floating space is formed between each fixing piece and the caliper support. The two ends of each active return line spring are provided with an insertion part and a limiting hook part which are connected in a bent mode, the insertion parts extend in the third direction, the two insertion parts of the same active return line spring are inserted into the two installation insertion holes in a sliding mode respectively, and the limiting hook parts are arranged in the first floating space in a floating mode and can abut against the ends of the fixing pieces. According to the brake caliper disclosed by the utility model, the automatic adjustment of the position of the active return line spring is realized, the probability of plastic deformation of the active return line spring is reduced, sufficient return force is ensured, the low dragging torque of a brake system is further maintained, the energy consumption of a vehicle is reduced, and the control precision of the vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile braking, in particular to a brake caliper and a vehicle. Background Art

[0002] With the increasing popularity of new energy electric vehicles and intelligent assisted driving, users have higher and higher demands for high torque power release, endurance and precise control of intelligent assisted driving of electric vehicles, and are constantly seeking braking systems with lower drag torque, and even braking solutions with zero drag torque.

[0003] For this reason, at present, the EMB (electromechanical) brake system uses a brake caliper with an active friction plate return spring with greater return force as a low drag torque braking solution. Existing brake calipers usually include a caliper bracket, an elastic return device, and a friction plate, among which the friction plate is mounted on the caliper bracket and two are arranged opposite to each other on both sides of the brake disc and keep the same distance from the brake disc, and the elastic return device is connected between the two friction plates. The brake caliper mainly squeezes the brake disc with two friction plates, applies friction to the brake disc to provide a braking torque opposite to the direction of movement, and promotes vehicle braking; and the elastic return device mainly functions to return the two friction plates to their original positions as soon as the user stops the braking operation, so that the friction plates are separated from the brake disc, and a lower drag torque is achieved.

[0004] However, as the consumable material exerting friction on the brake disc, the friction pad gradually wears and becomes thinner in the continuous friction with the brake disc. In order to keep the initial distance between the friction pad and the brake disc consistent, the friction pad will be pushed away from the original distance by the piston after being worn and thinned, which will cause the elastic return device fixed on the friction pad to move with the friction pad, causing plastic structural damage to the elastic return device and attenuation of the return force. Utility Model Content

[0005] One object of the utility model is to provide a brake caliper, which can avoid or slow down the attenuation of the return force caused by the wear of the friction plate, so that the brake caliper maintains a low drag torque.

[0006] Another object of the present invention is to provide a vehicle that can maintain a low drag torque of the braking system, improve braking performance, and meet the needs of precise vehicle operation and control.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] A brake caliper, comprising a caliper bracket having a mounting groove and two friction plates movably mounted in the mounting groove, the two friction plates being arranged opposite to each other in a first direction, each of the friction plates being provided with a fixing piece at both ends along a second direction, the fixing piece having a mounting socket extending along a third direction, the first direction, the second direction and the third direction being perpendicular to each other, and a first floating space being provided between one end of the fixing piece facing the bottom of the mounting groove and the caliper bracket in the third direction;

[0009] The brake caliper also includes two active return line springs, which are arranged on opposite sides of the two friction plates along the second direction. Both ends of each active return line spring have a bent and connected plug-in portion and a limiting hook portion. The plug-in portion extends along the third direction, and the two plug-in portions of the same active return line spring are respectively slidably inserted in the mounting sockets corresponding to the two friction plates, and the limiting hook portion is floatingly arranged in the first floating space and can abut against the end of the fixing member.

[0010] As an optional technical solution of a brake caliper, the fixing member has a lateral opening connected to the mounting socket, and the plug-in portion can enter and exit the mounting socket through the lateral opening.

[0011] As an optional technical solution for a brake caliper, the fixing part includes an open ring portion, which is located on the side of the friction plate facing away from the other friction plate, the inner hole of the open ring portion forms the mounting socket and the opening of the open ring portion faces the friction plate, and the open ring portion and the friction plate together form the lateral opening.

[0012] As an optional technical solution of a brake caliper, a fixed plate portion is connected to an opening side of the open ring portion, and the fixed plate portion is fixedly connected to the friction plate.

[0013] As an optional technical solution for a brake caliper, mounting grooves are provided on two groove walls that are relatively arranged along the second direction. A support spring is clamped and fixed in the mounting groove. The friction plate can be slidably installed on the support spring along the first direction, and the first floating space is formed between the fixing part and the support spring.

[0014] As an optional technical solution of a brake caliper, the support spring includes:

[0015] A mounting portion, the mounting portion is clamped in the mounting groove and has a mounting slide groove with an opening toward the friction plate, the mounting slide groove extends along the first direction, and the friction plate is slidably mounted in two mounting slide grooves at both ends along the second direction;

[0016] An auxiliary support portion, wherein the first end of the auxiliary support portion is connected to the side of the mounting portion toward the bottom of the mounting groove, the second end of the auxiliary support portion is located outside the mounting slot and extends freely, and the auxiliary support portion abuts against the side of the friction plate toward the mounting groove to support the friction plate along the third direction.

[0017] As an optional technical solution of the brake caliper, the caliper bracket is provided with limiting guide components on both opposite sides along the second direction, each of the limiting guide components has two limiting grooves arranged opposite to each other along the first direction, and the limiting grooves extend along the second direction;

[0018] The active return line spring includes a U-shaped connecting head, the plane where the connecting head is located is perpendicular to the third direction, and the opposite sides of the connecting head can be slidably arranged in the two limiting grooves along the second direction respectively, and the connecting head is located between the two plug-in parts.

[0019] As an optional technical solution of the brake caliper, the limiting guide component includes two limiting blocks, the two limiting blocks are arranged in parallel and spaced apart along the first direction, and each of the limiting blocks is provided with the limiting groove penetrating along the second direction;

[0020] And / or, a groove depth of the limiting groove in a third direction is greater than a cross-sectional diameter of the active return line spring, and the third direction is perpendicular to both the first direction and the second direction.

[0021] As an optional technical solution for a brake caliper, the active return line spring includes two spring legs arranged opposite to each other in the first direction, the first end of each spring leg has the plug-in portion, the two spring legs are located in the same plane perpendicular to the second direction, the second end of each spring leg is wound with a connecting ring portion, a connecting cross portion is connected between the two connecting ring portions, and the connecting cross portion extends along the first direction.

[0022] A vehicle comprises a brake disc and a brake force applying mechanism, including the brake caliper as described above, wherein the brake disc is located between two friction plates, and the brake force applying mechanism pushes the two friction plates to move in a direction toward the brake disc to brake.

[0023] Beneficial effects of the utility model:

[0024] The brake caliper provided by the utility model has a plug-in portion extending in a third direction at both ends of the active return line spring, and the plug-in portion is slidably inserted in the mounting socket of the fixing piece, and the limiting hook portion is movably arranged in the floating space. When the friction plate is worn and displaced toward the direction close to the brake disc, the plug-in portions at both ends of the active return line spring can float along the third direction along the mounting socket, so that the active return line spring can be automatically adjusted with the friction plate, and the probability of plastic deformation of the active return line spring is reduced, so as to ensure that the return force of the active return line spring is sufficient, thereby avoiding the increase of the drag torque caused by the wear of the friction plate; at the same time, by arranging a floating space between the fixing piece and the actuating caliper, not only can the limiting hook portion float in the third direction in the floating space, but also the floating stroke of the limiting hook portion can be limited, so as to ensure the floating reliability of the active return line spring, and the limiting hook portion can be used to limit the plug-in portion from being separated from the mounting socket, so as to ensure the connection stability and reliability of the active return line spring and the fixing piece.

[0025] The vehicle provided by the utility model can avoid plastic deformation of the active return line spring by applying the brake caliper, thereby avoiding reduction of the return force, maintaining low drag torque of the braking system, improving the braking performance of the vehicle, and meeting the needs of precise vehicle operation and control. At the same time, lower drag torque can also reduce vehicle energy consumption, thereby reducing vehicle operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an axonometric view of the brake caliper provided in the first embodiment of the utility model;

[0027] Figure 2 yes Figure 1 A partial enlarged view of point I in the middle;

[0028] Figure 3 It is a structural schematic diagram of an active return line spring and a fixing member of a brake caliper provided in the first embodiment of the utility model;

[0029] Figure 4 It is a side view of the brake caliper provided in the first embodiment of the utility model;

[0030] Figure 5 is a top view of the brake caliper provided in the first embodiment of the utility model;

[0031] Figure 6 is a cross-sectional view of a brake caliper provided in Embodiment 1 of the present utility model;

[0032] Figure 7 This is a schematic diagram of the structure of the active return line spring provided in the second embodiment of the utility model;

[0033] Figure 8 It is a structural schematic diagram of a brake caliper provided in Embodiment 2 of the present utility model.

[0034] In the figure:

[0035] 1. Caliper bracket; 11. Mounting groove; 12. Open end surface; 13. Inclined surface;

[0036] 2. Friction plate; 2a. Inner friction plate; 2b. Outer friction plate;

[0037] 3. Active return line spring; 31. Spring leg; 311. Inclined portion; 312. Insertion portion; 313. Limiting hook portion; 32. Connecting head; 321. Connecting portion; 322. Guide portion; 33. Connecting ring portion; 34. Connecting transverse portion;

[0038] 4. Limiting guide component; 41. Limiting block; 411. Limiting groove;

[0039] 5. fixing member; 51. opening ring portion; 511. mounting socket; 52. fixing plate portion;

[0040] 6. Support spring; 61. Mounting portion; 611. Mounting slide groove; 62. Auxiliary supporting portion. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0042] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0045] Embodiment 1

[0046] like Figure 1 As shown, the utility model provides a brake caliper, which is installed on a vehicle and is used for braking the vehicle. The brake caliper can maintain a lower drag torque and improve the vehicle's handling performance.

[0047] Specifically, the brake caliper comprises a caliper bracket 1, two friction plates 2 and two active return line springs 3. The two friction plates 2 are arranged opposite to each other and spaced apart in a first direction, and both ends of each friction plate 2 in a second direction can be slidably mounted on the caliper bracket 1 in the first direction; active return line springs 3 are respectively arranged on both sides of the friction plates 2 in the second direction, and each active return line spring 3 is connected to the two friction plates 2 to apply elastic force to the two friction plates 2 to make them move away from each other and reset. The two friction plates 2 are respectively an inner friction plate 2a and an outer friction plate 2b.

[0048] When the brake caliper is applied to the brake system of the vehicle, the brake disc is inserted between the two friction plates 2 from the bottom of the brake caliper. When braking, the two friction plates 2 move toward each other to squeeze the brake disc to achieve vehicle braking; when braking stops, the two friction plates 2 move away from each other under the drive of the active return line spring 3 and reset, so that the friction plates 2 are separated from the brake disc.

[0049] See also Figure 1The caliper bracket 1 is the base structure of the brake caliper, and is mostly made of metal materials such as iron and aluminum alloy. The caliper bracket 1 has a mounting groove that opens in the third direction, and two friction plates 2 are movably installed in the mounting groove. Specifically, the caliper bracket 1 includes a bracket bottom and two bracket side portions connected to opposite sides of the bracket bottom, and the two bracket side portions are arranged relatively in the second direction, and the bracket bottom and the two bracket side portions enclose the mounting groove. Both ends of each friction plate 2 can be slidably installed on the two bracket side portions along the first direction, and the active return line spring 3 is arranged one by one corresponding to the bracket side portions.

[0050] In this embodiment, see Figure 1 and Figure 2 Each friction plate 2 is provided with a fixing member 5 at both ends along the second direction. The fixing member 5 has a mounting socket 511 extending along the third direction. The mounting socket 511 extends along the third direction. The first direction, the second direction and the third direction are mutually perpendicular. A first floating space is provided between one end of the fixing member 5 facing the bottom of the mounting groove and the caliper bracket 1 in the third direction. Each active return line spring 3 has a bent plug-in portion 312 and a limiting hook portion 313 at both ends. The plug-in portion 312 extends along the third direction. The two plug-in portions 312 of the same active return line spring 3 are respectively slidably inserted into the mounting sockets 511 corresponding to the two friction plates 2. The limiting hook portion 313 is floatingly provided in the first floating space and can abut against the end of the fixing member 5.

[0051] The brake caliper provided by the utility model has a plug-in portion 312 extending in a third direction at both ends of the active return line spring 3, and the plug-in portion 312 is slidably inserted in the mounting socket 511 of the fixing member 5, and the limit hook portion 313 is movably arranged in the first floating space. When the friction plate 2 is worn and displaced toward the direction close to the brake disc, the plug-in portions 312 at both ends of the active return line spring 3 can float along the mounting socket 511 along the third direction, so that the active return line spring 3 can automatically adjust with the friction plate 2, reducing the plastic deformation of the active return line spring 3. Probability, to ensure that the active return line spring 3 has sufficient return force, thereby avoiding the increase of drag torque due to wear of the friction plate 2; at the same time, by setting a first floating space between the fixing part 5 and the actuating caliper, not only can the limiting hook part 313 float along the third direction in the first floating space, but also the floating stroke of the limiting hook part 313 can be limited, thereby ensuring the floating reliability of the active return line spring 3, and the limiting hook part 313 can be used to limit the plug-in part 312 from being separated from the mounting socket 511, thereby ensuring the connection stability and reliability of the active return line spring 3 and the fixing part 5.

[0052] In this embodiment, if Figure 2 and Figure 3As shown, the fixing member 5 has a lateral opening connected to the mounting socket 511, and the plug-in portion 312 can enter and exit the mounting socket 511 through the lateral opening. By providing the lateral opening, the plug-in portion 312 can be inserted into the mounting socket 511 through the lateral opening, which improves the convenience of installing the active return line spring 3 and further improves the convenience of replacing the friction plate 2 after it is worn.

[0053] Furthermore, the fixing member 5 includes an open ring portion 51, which is located on the side of the friction plate 2 away from the other friction plate 2, the inner hole of the open ring portion 51 forms a mounting socket 511 and the opening of the open ring portion 51 faces the friction plate 2, and the open ring portion 51 and the friction plate 2 together form a lateral opening. By adopting the open ring portion 51 and the friction plate 2 to form a lateral opening, the structure of the fixing member 5 is simplified.

[0054] In order to better realize the installation of the fixing member 5 and the friction plate 2, the opening side of the open ring part 51 is connected with a fixing plate part 52, and the fixing plate part 52 is riveted to the friction plate 2. The characteristics of riveted connection such as small deformation, strong bearing capacity, strong shock and impact resistance can be used to avoid shaking of the friction plate 2 during use, avoid problems such as eccentric wear, and at the same time ensure that the return force of the active return line spring 3 is sufficient, thereby maintaining the low drag torque state of the brake caliper.

[0055] Specifically, the two friction plates 2 are provided with mounting ears extending at both ends along the second direction, and the fixing member 5 and the friction plate 2 are riveted to the mounting ears through the fixing plate portion 52. The two open ring portions 51 of the two fixing members 5 on the same friction plate 2 are located between the two fixing plate portions 52 of the two fixing members 5.

[0056] like Figure 1 , Figure 2 and Figure 4 As shown, in order to enable the friction plate 2 to slide better in the installation groove, the groove walls on both sides of the installation groove in the second direction are provided with installation grooves 11, and the support spring 6 is clamped and fixed in the installation groove 11, and the friction plate 2 can be slidably installed on the support spring 6 along the first direction. By providing the support spring 6, elastic support can be provided for the friction plate 2, and the sliding reliability of the friction plate 2 can be ensured, while avoiding the wear of the caliper bracket 1 caused by the direct contact between the friction plate 2 and the caliper bracket 1, thereby improving the service life of the caliper bracket 1; furthermore, the support spring 6 is clamped with the caliper bracket 1, so that the disassembly and assembly efficiency of the support spring 6 on the caliper bracket 1 is high, which is conducive to the maintenance and replacement of the support spring 6 after wear.

[0057] In this embodiment, a first floating space is formed between the fixing member 5 and the supporting spring 6 , so that the limiting hook portion 313 is limited between the fixing member 5 and the supporting spring 6 , which is beneficial to simplifying the structural setting of the caliper bracket 1 .

[0058] The support spring 6 includes a mounting portion 61, which is clamped in the mounting groove 11 and has a mounting slot 611 with an opening facing the friction plate 2, and the mounting slot 611 extends along the first direction. The installation slot 611 is provided to guide the sliding of the friction plate 2 along the first direction, thereby ensuring the stability and reliability of the movement of the friction plate 2 along the first direction. Specifically, the mounting portion 61 is provided with a clamping structure on both sides of the mounting portion along the first direction and on both sides of the mounting portion along the third direction, and the clamping structure is clamped with the caliper bracket 1, thereby ensuring that the mounting portion 61 is stably installed on the caliper bracket 1, and preventing the mounting portion 61 from slipping out of the mounting groove 11.

[0059] Furthermore, the support spring 6 also includes an auxiliary support portion 62, the first end of which is connected to one end of the mounting portion 61 facing the mounting groove, the second end of which is located outside the mounting slot 611 and extends freely, and the auxiliary support portion 62 abuts against the side of the friction plate 2 facing the mounting groove to support the friction plate 2 in the third direction. The auxiliary support portion 62 is provided to further support the friction plate 2, ensure the floating state and the guiding state of the friction plate 2, and further avoid the friction plate 2 from tilting and eccentric wear. In this embodiment, a first floating space is formed between the fixing member 5 and the auxiliary support portion 62.

[0060] Furthermore, the support spring 6 is made of stamped stainless steel material to prevent rust on the surface of the support spring 6, maintain lower friction, and ensure that the friction plate 2 returns to its original position better.

[0061] Furthermore, in the present embodiment, each active return line spring 3 has a "J"-shaped structure, and each active return spring includes two spring legs 31 and a connecting head 32 connected between the two spring legs 31, which are relatively and spaced apart in the first direction. Each spring leg 31 includes the above-mentioned plug-in portion 312 and the limiting hook portion 313, and the limiting hook portion 313 is located on the side of the plug-in portion 312 away from the connecting head 32, and the end of the limiting hook portion 313 forms the end of the corresponding spring leg 31.

[0062] like Figure 1 , Figure 4 and Figure 6As shown, in this embodiment, the caliper bracket 1 is provided with limiting guide components 4 on both sides of the second direction, and each limiting guide component 4 has two limiting grooves 411 arranged opposite to each other along the first direction, and the limiting grooves 411 extend along the second direction. The connecting head 32 is arranged in a U-shape, and the plane where the connecting head 32 is located is perpendicular to the third direction, and the two sides of the connecting head 32 can be slidably arranged in the two limiting grooves 411 along the second direction. This arrangement allows the connecting head 32 to float along the second direction when the plug-in portion 312 floats along the third direction, so as to facilitate the direction guidance of the floating of the active return line spring 3, avoid the active return line spring 3 from plastic deformation, and ensure that the return force of the active return line spring 3 is sufficient.

[0063] A second floating space is provided between the caliper bracket 1 and the limiting guide component 4, and the second floating space is located on a side of the limiting guide component 4 away from the mounting groove. The connecting head 32 includes a connecting portion 321 and two guiding portions 322 connected to both ends of the connecting portion 321, wherein the connecting portion 321 extends along a first direction and is located in the second floating space, the two guiding portions 322 are arranged relatively spaced in the first direction and extend along the second direction, and the two guiding portions 322 are respectively slidably inserted in the two limiting grooves 411.

[0064] In this embodiment, each spring leg 31 further includes an inclined portion 311 connected between the guide portion 322 and the plug-in portion 312, and the two inclined portions 311 extend obliquely in a direction away from the guide portion 322 and away from each other to increase the spacing between the two plug-in portions 312. Further, each spring leg 31 further includes a transition portion connected between the inclined portion 311 and the guide portion 322, and the transition portion extends along the third direction to facilitate improving the connection convenience between the spring leg 31 and the connecting head 32.

[0065] Furthermore, the opening end face 12 of the installation groove is perpendicular to the third direction, and the side of the opening end face 12 away from the installation groove is connected with an inclined surface 13, and the angle between the inclined surface 13 and the opening end face 12 is an obtuse angle. The limiting guide component 4 is installed on the opening end face 12, and a floating space is formed between the limiting guide component 4 and the inclined surface 13. The third direction is perpendicular to both the first direction and the second direction. By setting the opening end face 12 perpendicular to the third direction, it is beneficial to provide an accurate reference for the installation of the limiting guide component 4, improve the installation reliability of the limiting guide component 4, and help ensure that the limiting groove 411 extends along the second direction, that is, to ensure the reliability of the connection head 32 of the active return line spring 3 floating along the second direction; by setting the inclined surface 13, it is possible to reduce the size requirements of the opening end face 12 in the second direction while ensuring the size of the floating space in the second direction, reduce the overall size of the caliper bracket 1 in the second direction, and improve the compactness of the structure.

[0066] Furthermore, one end of each guide portion 322 away from the limiting portion extends outward from the open end surface 12, so that the inclined portion 311 can be located in the installation groove and spaced from the groove side wall of the installation groove, thereby preventing the inclined portion 311 from rubbing against the caliper bracket 1 and reducing the wear of the active return line spring 3. Preferably, a transition portion is connected between the inclined portion 311 and the guide portion 322, and the transition portion extends along the third direction.

[0067] In this embodiment, the limiting guide component 4 includes two limiting blocks 41, the two limiting blocks 41 are arranged in parallel along the first direction, and each limiting block 41 is provided with a limiting groove 411 extending through the second direction. By providing two limiting blocks 41, the spacing between the two limiting grooves 411 can be flexibly designed, and the overall size and weight of the limiting guide component 4 can be reduced, thereby reducing the overall weight of the brake caliper.

[0068] The limiting block 41 can be integrally formed, welded or detachably connected with the caliper bracket 1, and this embodiment does not limit this. In other embodiments, the limiting guide component 4 can also include a limiting block 41, and a limiting block 41 is provided with two limiting grooves 411.

[0069] The limiting groove 411 passes through the side surface of the limiting block 41 away from the bottom of the installation groove, so as to facilitate the insertion of the guide part 322 into the limiting groove 411, that is, to facilitate the assembly of the limiting guide component 4 and the active return line spring 3. The groove depth of the limiting groove 411 in the third direction is greater than the cross-sectional diameter of the active return line spring 3, so that when the guide part 322 of the active return line spring 3 floats in the second direction, the limiting groove 411 can provide the guide part 322 with a movable space to move in the third direction, thereby preventing the guide part 322 from slipping out of the limiting groove 411.

[0070] The utility model also provides a vehicle, the braking system used in the vehicle adopts the above-mentioned brake caliper, and with the cooperation of the brake force applying mechanism, pushes the two friction plates 2 inward to squeeze the brake plates to brake the vehicle, so that the vehicle braking maintains a lower drag torque, improves the vehicle's handling performance, and meets users' needs for high-torque power release, endurance, and precise control of intelligent assisted driving of electric vehicles; at the same time, lower drag torque can also reduce vehicle energy consumption, thereby reducing vehicle operating costs.

[0071] The matching structure of the brake disc and the brake caliper and the specific structure of the brake force applying mechanism can be set using existing technologies. This is not the focus of the present utility model and will not be described in detail here.

[0072] Embodiment 2

[0073] The present embodiment provides a brake caliper and a vehicle including the brake caliper. The brake caliper provided in the present embodiment is substantially the same as the brake caliper in the first embodiment, with only a partial difference in the configuration of the active return line spring. The present embodiment will not repeat the same contents as the first embodiment.

[0074] like Figure 7 and Figure 8 As shown, in this embodiment, the active return line spring 3 includes two spring legs 31 arranged opposite to each other in the first direction, and each spring leg 31 has an insert portion 312 at one end away from the connecting head 32. The two spring legs 31 are both located in the same plane perpendicular to the second direction, and each spring leg 31 has a connecting ring portion 33 wound around one end away from the insert portion 312. A connecting cross portion 34 is connected between the two connecting ring portions 33, and the connecting cross portion 34 extends along the first direction.

[0075] In this embodiment, each active return line spring 3 is roughly located in a plane perpendicular to the second direction, so that when the friction plate 2 is worn and displaced, when the two ends of the active return line spring 3 approach each other, the two spring legs 31 can only move in the third direction relative to the friction plate 2, and there will be no movement in the second direction and the third direction, thereby reducing the plastic deformation of the active return line spring 3 and ensuring the reliability of use of the active return line spring 3; at the same time, since a connecting ring portion 33 is used for transition between the connecting cross portion 34 and the spring leg 31, when the connecting leg floats along the third direction, the connecting ring portion 33 can better absorb the deformation, thereby further avoiding obvious plastic deformation of the active return line spring 3 and improving the reliability of use of the active return line spring 3.

[0076] In this embodiment, a limiting rod is further connected between the plug-in portion 312 and the inclined portion 311, and the limiting rod extends in the first direction. By providing the limiting rod, the limiting rod can be in contact with the end of the fixing member 5 away from the limiting hook 313 to limit the travel of the limiting hook 313 in the direction away from the fixing member 5, thereby ensuring that the limiting hook 313 can only float within a preset floating travel, thereby improving the matching reliability of the active return line spring 3 and the fixing member 5. Furthermore, the limiting rod extends in the direction away from the other spring leg 31.

[0077] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

[0078] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A brake caliper, comprising a caliper bracket (1) having a mounting groove and two friction plates (2) movably mounted in the mounting groove, wherein the two friction plates (2) are arranged opposite to each other in a first direction, and characterized in that: Each friction plate (2) is provided with a fixing member (5) at both ends along the second direction, the fixing member (5) having a mounting socket (511) extending along the third direction, the first direction, the second direction and the third direction being perpendicular to each other, and a first floating space is provided between one end of the fixing member (5) facing the bottom of the mounting groove and the caliper bracket (1) in the third direction; The brake caliper also includes two active return line springs (3), which are arranged on opposite sides of the two friction plates (2) along the second direction, and each of the two active return line springs (3) has a bent plug-in portion (312) and a limiting hook portion (313) at both ends, and the plug-in portion (312) extends along the third direction, and the two plug-in portions (312) of the same active return line spring (3) are respectively slidably inserted into the mounting holes (511) corresponding to the two friction plates (2), and the limiting hook portion (313) is floatingly arranged in the first floating space and can abut against the end of the fixing member (5).

2. The brake caliper according to claim 1, characterized in that: The fixing member (5) has a lateral opening communicating with the installation socket (511), and the plug-in portion (312) can enter and exit the installation socket (511) through the lateral opening.

3. The brake caliper according to claim 2, characterized in that: The fixing member (5) comprises an open ring portion (51), the open ring portion (51) being located on a side of the friction plate (2) facing away from the other friction plate (2), the inner hole of the open ring portion (51) forming the mounting socket (511) and the opening of the open ring portion (51) facing the friction plate (2), the open ring portion (51) and the friction plate (2) together forming the lateral opening.

4. The brake caliper according to claim 3, characterized in that: A fixed plate portion (52) is connected to the open side of the open ring portion (51), and the fixed plate portion (52) is fixedly connected to the friction plate (2).

5. The brake caliper according to claim 1, characterized in that: The two groove walls of the mounting groove that are arranged opposite to each other along the second direction are both provided with mounting grooves (11), a support spring (6) is fixedly engaged in the mounting groove (11), the friction plate (2) can be slidably mounted on the support spring (6) along the first direction, and the first floating space is formed between the fixing member (5) and the support spring (6).

6. The brake caliper according to claim 5, characterized in that: The supporting spring (6) comprises: A mounting portion (61), the mounting portion (61) being snap-connected to the mounting groove (11) and having a mounting slide groove (611) opening toward the friction plate (2), the mounting slide groove (611) extending along the first direction, and the friction plate (2) being slidably mounted in the two mounting slide grooves (611) at both ends along the second direction; An auxiliary support portion (62), wherein a first end of the auxiliary support portion (62) is connected to a side of the mounting portion (61) facing the bottom of the mounting groove, a second end of the auxiliary support portion (62) is located outside the mounting groove (611) and extends freely, and the auxiliary support portion (62) abuts against a side of the friction plate (2) facing the mounting groove to support the friction plate (2) along the third direction.

7. The brake caliper according to any one of claims 1 to 6, characterized in that: The caliper bracket (1) is provided with limiting guide components (4) on opposite sides along the second direction, each limiting guide component (4) has two limiting grooves (411) arranged opposite to each other along the first direction, and the limiting grooves (411) extend along the second direction; The active return line spring (3) comprises a U-shaped connecting head (32), the plane where the connecting head (32) is located is perpendicular to the third direction, and the opposite sides of the connecting head (32) can be slidably arranged in the two limiting grooves (411) along the second direction, and the connecting head (32) is located between the two plug-in parts (312).

8. The brake caliper according to claim 7, characterized in that: The limiting guide part (322) comprises two limiting blocks (41), the two limiting blocks (41) are arranged in parallel and spaced apart along the first direction, and each limiting block (41) is provided with the limiting groove (411) penetrating along the second direction; And / or, the groove depth of the limiting groove (411) in the third direction is greater than the cross-sectional diameter of the active return line spring (3), and the third direction is perpendicular to both the first direction and the second direction.

9. The brake caliper according to any one of claims 1 to 6, characterized in that: The active return line spring (3) comprises two spring legs (31) arranged opposite to each other in the first direction, the first end of each spring leg (31) having the plug-in portion (312), the two spring legs (31) being located in the same plane perpendicular to the second direction, the second end of each spring leg (31) being wound with a connecting ring portion (33), a connecting cross portion (34) being connected between the two connecting ring portions (33), and the connecting cross portion (34) extending along the first direction.

10. A vehicle, comprising a brake disc and a brake force applying mechanism, characterized in that: It comprises a brake caliper as claimed in any one of claims 1 to 9, wherein the brake disc is located between the two friction plates (2), and the brake force applying mechanism pushes the two friction plates (2) to move in a direction toward the brake disc to brake.

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