New energy automobile brake caliper and brake

Abstract

The utility model provides a new energy automobile brake caliper and a brake. The brake caliper comprises a caliper body, a driving assembly arranged on the side, close to an inner friction plate, of the caliper body, and a driving part used for driving the driving assembly to be close to or away from the inner friction plate. The driving part is provided with a primary output end and a secondary output end. The driving assembly comprises a limiting assembly connected to the first-stage output end, a pushing piece connected to the second-stage output end and a socket piece connected to the inner friction plate. The limiting assembly comprises a limiting base and at least one locking piece connected to the limiting base in a sliding mode, and after the driving part drives the locking piece on the first-stage output end to get close to the socket piece, the driving part drives the pushing piece on the second-stage output end to get close to the locking piece so as to drive the locking piece and the socket piece to be locked. And a tension spring is arranged between the inner friction plate and the outer friction plate. According to the utility model, the purpose of quickly getting away from the brake disc can be achieved, dragging after parking is released is avoided, and the response speed of quickly releasing brake is increased.

Description

Technical Field

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

[0002] The number of new energy vehicles in use increases year by year, and the requirements for energy consumption reduction and emission reduction of new energy vehicles are becoming more and more stringent. In order to reduce the fuel consumption and exhaust emissions of the whole vehicle, reducing the braking drag force of the whole vehicle is also one of the important measures to achieve fuel saving. The magnitude of the braking drag torque directly reflects the return performance of the whole vehicle braking system and indirectly reflects the fuel economy of the whole vehicle.

[0003] The brake used in the prior art is a mechanical part that stops or decelerates the moving parts in a machine. The commonly used one is a disc brake caliper, which generally includes a brake, a brake disc and a control system. It mainly brakes by the brake friction pads on both sides cooperating with the brake disc. In the existing structure, the braking synchronous reaction of the brake pads is often slow during braking. After the brake pedal is released, the braking effect still persists, and the braking phenomenon cannot be quickly released, which easily causes inconsistent wear of the brake friction pads on both sides, resulting in a drag phenomenon after the parking brake is released and shortening the service life of the brake disc and the friction pads. Summary of the Utility Model

[0004] In view of this, the utility model aims to provide a braking caliper for a new energy vehicle, which can achieve synchronous reaction of the brake friction pads, avoid drag after the parking brake is released, and improve the reaction speed of quickly releasing the brake.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A braking caliper for a new energy vehicle, comprising a caliper body, a driving assembly arranged on one side of the caliper body close to the inner friction pad, and a driving part for driving the driving assembly to approach or move away from the inner friction pad;

[0007] The driving part has a primary output end and a secondary output end;

[0008] The driving assembly includes a limiting assembly connected to the primary output end, a pushing member connected to the secondary output end, and a receiving and plugging member connected to the inner friction pad;

[0009] The limiting assembly includes a limiting seat and at least one locking member slidably connected to the limiting seat. After the driving part drives the locking member on the primary output end to approach the receiving and plugging member, the driving part drives the pushing member on the secondary output end to approach the locking member to drive the locking member to lock with the receiving and plugging member;

[0010] A tension spring is provided between the inner friction plate and the outer friction plate.

[0011] Further, a limiting groove is provided on the limiting seat, and the two locking members are slidably arranged in the limiting groove along the radial direction of the limiting seat;

[0012] The two locking members are arranged oppositely, and an "eight"-shaped through groove is formed at the adjacent ends of the two; a conical section is provided at the end of the pushing member, and the slope of the conical section is the same as the slope of the through groove;

[0013] The socket members and the locking members are arranged in one-to-one correspondence.

[0014] Further, an extension portion is provided at one end of the locking member close to the locking member, and a groove is provided in the socket member;

[0015] When the pushing member drives the two locking members to slide radially outward along the limiting seat, the extension portion is partially inserted into the groove;

[0016] A first elastic member is provided between the locking member and the limiting seat. When the pushing member moves away from the inner friction plate, the first elastic member releases energy to disengage the extension portion from the groove.

[0017] Further, a pin shaft is connected to the locking member, a receiving hole for sliding the pin shaft is provided on the limiting seat, and the first elastic member is sleeved outside the pin shaft.

[0018] Further, the tension spring includes two oppositely arranged connecting sections and a support bar provided between the two connecting sections;

[0019] The connecting section is a trapezoidal structure with one end open, and the open ends are respectively connected to the inner friction plate and the outer friction plate;

[0020] An elastic compression portion is provided at the bottom edge of the connecting section, and a plurality of the elastic compression portions are arranged at intervals along the Y direction of the vehicle body.

[0021] Further, four support bars are provided between the bottom edges of the two connecting sections, and a rectangular support frame is formed between the support bars and the bottom edge;

[0022] The two support bars located in the middle are arranged on both sides of a plurality of the elastic compression portions.

[0023] Compared with the prior art, the present utility model has the following advantages:

[0024] For the brake caliper of the new energy vehicle described in the present utility model, a driving assembly and a driving part are arranged on one side of the inner friction plate. A limiting assembly is arranged on the primary output end of the driving part, and a pushing part is arranged on the secondary output end. When braking, the locking part is first driven by the primary output end to abut against the inner friction plate, pushing the inner friction plate close to the brake disc for braking. At this time, the pushing part continues to move forward to the locking part and drives the locking part to slide and lock with the socket. When the brake pedal is released, the driving part reverses to drive the primary output end to retract. At this time, the limiting assembly drives the inner friction plate to move away from the brake disc, so as to achieve the purpose of quickly moving away from the brake disc, avoid drag after parking release, and improve the reaction speed of quickly releasing the brake.

[0025] In addition, a limiting groove is arranged on the limiting seat. Two oppositely arranged locking parts are arranged on both sides of the pushing part, and an "eight"-shaped through groove is formed at the adjacent ends of the two locking parts. A conical section with the same slope as the through groove is arranged at the end of the pushing part to improve the stability of the locking part during movement and ensure the locking effect between the inner friction plate and the limiting assembly.

[0026] In addition, by arranging a first elastic part between the locking part and the limiting seat, when the pushing part moves away from the inner friction plate, the first elastic part releases energy to reset the locking part, so that the locking part can automatically disengage from the socket.

[0027] Another object of the present utility model is to provide a brake, which adopts the brake caliper of the new energy vehicle as described above.

[0028] For the brake of the present utility model, by arranging the brake caliper of the new energy vehicle as described above, it can avoid the drag phenomenon after parking release, reduce the wear of the friction plate, and extend the service life of the brake. Description of the Drawings

[0029] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0030] Figure 1 It is a three-dimensional structural schematic diagram of the first perspective of the connection between the brake caliper of the new energy vehicle and the brake disc described in the embodiment of the present utility model;

[0031] Figure 2 It is a three-dimensional structural schematic diagram of the second perspective of the connection between the brake caliper of the new energy vehicle and the brake disc described in the embodiment of the present utility model;

[0032] Figure 3 It is a three-dimensional structural schematic diagram of the first perspective between the driving assembly, the inner friction plate, the outer friction plate, the tension spring and the brake disc described in the embodiment of the present utility model;

[0033] Figure 4 A three-dimensional structural schematic diagram of a second perspective among the driving assembly, inner friction plate, outer friction plate, tension spring and brake disc according to the embodiment of the present utility model;

[0034] Figure 5 A front view structural schematic diagram of the connection between the brake caliper and the brake disc of the new energy vehicle according to the embodiment of the present utility model;

[0035] Figure 6 is Figure 5 A cross-sectional schematic diagram at A-A in

[0036] Figure 7 is Figure 6 A partial enlarged view at I in

[0037] Figure 8 A schematic diagram of the connection position between the driving assembly and the socket part according to the embodiment of the present utility model.

[0038] Explanation of reference numerals:

[0039] 1. Caliper body; 2. Driving assembly; 3. Driving part; 4. Inner friction plate; 5. Outer friction plate; 6. Tension spring; 7. Brake disc;

[0040] 201. Limiting assembly; 202. Pushing part; 203. Socket part;

[0041] 601. Connection section; 602. Support bar; 603. Elastic compression part;

[0042] 2011. Limiting seat; 2012. Locking part; 2013. Through groove; 2014. Pin shaft; 2015. First elastic part; 2016. Installation cylinder;

[0043] 2021. Conical section;

[0044] 2031. Groove;

[0045] 20111. Limiting groove; 20112. Accommodating hole;

[0046] 20121. Extension part; 20122. Installation part. Specific embodiments

[0047] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0048] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "back", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0049] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0050] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0051] This embodiment relates to a brake caliper for a new energy vehicle. The brake caliper includes a caliper body 1, a driving assembly 2 provided on one side of the caliper body 1 close to the inner friction plate 4, and a driving part 3 for driving the driving assembly 2 to approach or depart from the inner friction plate 4. The driving part 3 has a primary output end and a secondary output end. The driving assembly 2 includes a limiting assembly 201 connected to the primary output end, a pushing member 202 connected to the secondary output end, and a receiving and plugging member 203 connected to the inner friction plate 4.

[0052] Among them, the limiting assembly 201 includes a limiting seat 2011 and at least one locking member 2012 slidably connected to the limiting seat 2011. After the driving part 3 drives the locking member 2012 on the primary output end to approach the receiving and plugging member 203, the driving part 3 drives the pushing member 202 on the secondary output end to approach the locking member 2012 to drive the locking member 2012 to lock with the receiving and plugging member 203. A tension spring 6 is provided between the inner friction plate 4 and the outer friction plate 5.

[0053] For the brake caliper of a new energy vehicle in this embodiment, by arranging a driving assembly 2 and a driving part 3 on one side of the inner friction plate 4, a limiting assembly 201 is arranged on the primary output end of the driving part 3, and a pushing part 202 is arranged on the secondary output end. When braking, the locking part 2012 is first driven by the output end to abut against the inner friction plate 4, pushing the inner friction plate 4 closer to the brake disc 7 for braking. At this time, the pushing part 202 continues to move forward to the locking part 2012 and drives the locking part 2012 to slide and lock with the socket part 203. When the brake pedal is released, the driving part 3 reverses to drive the primary output end to retract. At this time, the limiting assembly 201 drives the inner friction plate 4 to move away from the brake disc 7, so as to achieve the purpose of quickly moving away from the brake disc 7, avoid drag after parking release, and improve the response speed of quickly releasing the brake.

[0054] Based on the above overall introduction, an exemplary structure of the brake caliper of a new energy vehicle in this embodiment is as Figures 1 to 6 shown, the driving part 3 of this embodiment is connected to the caliper body 1. A brake caliper bracket is further provided at the lower end of the caliper body 1 for connecting to the vehicle body. The brake disc 7 is arranged at the central position of the caliper body 1, and inner friction plates 4 and outer friction plates 5 are arranged on both sides of the brake disc 7. The inner friction plates 4 and the outer friction plates 5 are both clamped on the brake caliper bracket and can slide along the vehicle body Y direction along the brake caliper bracket.

[0055] In order to facilitate viewing the installation position of the driving assembly 2, the brake caliper bracket is not shown in the figure. Among them, the outer friction plate 5 is fixed on the right side of the brake caliper bracket. A telescopic spring is provided between the brake caliper bracket and the caliper body 1 to facilitate the movement of the brake caliper bracket and the outer friction plate 5 for a certain distance when moving away from or closer to the brake disc 7 during the braking process. The structure of the brake caliper bracket is set according to the position requirements and will not be elaborated here.

[0056] As Figure 6 shown, the driving part 3 adopts a two-stage electric cylinder. Installation cylinders 2016 are arranged outside the primary output end and the secondary output end of the driving part 3, and the installation cylinders 2016 are fixedly connected to the mounting seat of the driving part 3.

[0057] As described above, as Figures 1 to 6 shown, after the driving part 3 drives the locking part 2012 to lock with the socket part 203, the pushing part 202 is driven to continue pressing against the inner friction plate 4. The caliper body 1 drives the outer friction plate 5 to move towards the side close to the brake disc 7 under the reaction force, and the telescopic spring stores energy. At this time, both the inner friction plate 4 and the outer friction plate 5 act on the brake disc 7 for braking. When the braking is released, the driving part 3 first drives the primary output end to drive the locking part 2012 and the socket part 203 to move towards the side away from the brake disc 7. At the same time, the telescopic spring stores energy and the outer friction plate 5 resets.

[0058] As a preferred embodiment, as Figures 5 to 8As shown, a limiting groove 20111 is provided on the limiting seat 2011, and two locking members 2012 are slidably arranged in the limiting groove 20111 along the radial direction of the limiting seat 2011. The two locking members 2012 are arranged oppositely, and an "eight"-shaped through groove 2013 is formed at the adjacent ends of the two. A conical section 2021 is provided at the end of the pushing member 202, and the slope of the conical section 2021 is the same as that of the through groove 2013. The receiving members 203 are arranged in one-to-one correspondence with the locking members 2012.

[0059] As Figure 7 and Figure 8 shown, the limiting seat 2011 is disc-shaped, the limiting groove 20111 is a rectangular blind groove, and a through hole for the pushing member 202 to pass through is provided at the lower end of the limiting seat 2011. The through hole is communicated with the limiting groove 20111. The width of the locking member 2012 is adapted to the width of the limiting groove 20111.

[0060] In this embodiment, a limiting groove 20111 is provided on the limiting seat 2011. Two oppositely arranged locking members 2012 are arranged on both sides of the pushing member 202, and an "eight"-shaped through groove 2013 is formed at the adjacent ends of the two locking members 2012. A conical section 2021 with the same slope as the through groove 2013 is provided at the end of the pushing member 202, which improves the stability when the locking member 2012 moves and ensures the locking effect between the inner friction plate 4 and the limiting assembly 201.

[0061] As Figures 5 to 8 shown, an extension part 20121 is provided at one end of the locking member 2012 close to the locking member 2012, and a groove 2031 is provided in the receiving member 203. When the pushing member 202 drives the two locking members 2012 to slide radially outward along the limiting seat 2011, a part of the extension part 20121 is inserted into the groove 2031. A first elastic member 2015 is provided between the locking member 2012 and the limiting seat 2011. When the pushing member 202 moves in a direction away from the inner friction plate 4, the first elastic member 2015 releases energy and the extension part 20121 disengages from the groove 2031.

[0062] As Figures 7 to 8 shown, a rectangular groove is provided at one end of the locking member 2012 facing the receiving member 203. The rectangular groove divides the locking member 2012 into an extension part 20121 and a mounting part 20122. The groove 2031 is formed as an open groove on the side of the extension part 20121. When the driving part 3 drives the locking member 2012 to approach the receiving member 203, the extension part 20121 can be inserted into the groove 2031 to form partial overlap of the extension part 20121 and the receiving member 203 in the vehicle body Y direction. When the driving part 3 drives the locking member 2012 away from the inner friction plate 4, the driving assembly 2 drives the inner friction plate 4 to move away from the brake disc 7 at the same time, so as to achieve the purpose of quickly releasing the brake and avoid the occurrence of dragging phenomenon.

[0063] Further, as Figure 7 shown, a pin shaft 2014 is connected to the locking member 2012, a receiving hole 20112 for the pin shaft 2014 to slide is provided on the limiting seat 2011, and a first elastic member 2015 is sleeved outside the pin shaft 2014. The pin shaft 2014 is connected to the above-mentioned mounting portion 20122. When the locking member 2012 slides radially along the limiting seat 2011, the pin shaft 2014 plays a guiding role, and the first elastic member 2015 is used to provide power for the receiving member 203 to disengage from the receiving member 203. The first elastic member 2015 in this embodiment adopts a compression spring.

[0064] As Figures 3 to 4 shown, the tension spring 6 includes two oppositely arranged connecting sections 601 and a support bar 602 provided between the two connecting sections 601. The connecting section 601 is a trapezoidal structure with one end open, and its open ends are respectively connected to the inner friction plate 4 and the outer friction plate 5. An elastic compression portion 603 is provided at the bottom of the connecting section 601, and a plurality of elastic compression portions 603 are arranged at intervals along the vehicle body Y direction.

[0065] The function of the tension spring 6 is to maintain the distance between the inner friction plate 4 and the outer friction plate 5. When the inner friction plate 4 is driven to approach the brake disc 7, the tension spring 6 has an elastic force to push the outer friction plate 5 in the opposite direction. When the outer friction plate 5 is forced to approach the brake disc 7, the tension spring 6 is compressed and stores energy. Most of the tension springs 6 in the prior art adopt structures such as straight type, V type or W type. In actual use, the inner friction plate 4 and the outer friction plate 5 will cause the tension spring 6 to deform due to different forces on both sides. When the tension spring 6 is deformed and then squeezed again, it is easy to generate a force in the vehicle body X direction or generate a certain torque, resulting in jamming between the inner friction plate 4 and the outer friction plate 5 when sliding with the brake caliper bracket, and it is easy to cause the situation that the friction plate brakes untimely.

[0066] In this embodiment, two opposite connecting sections 601 are provided on the inner friction plate 4 and the outer friction plate 5, and a support bar 602 is provided between the connecting sections 601 to ensure that when the inner and outer friction plates 5 are subjected to external forces, the tension spring 6 is not easily deformed and the overall structural strength of the tension spring 6 is improved.

[0067] In addition, as Figure 3 and Figure 4 shown, four support bars 602 are provided between the bottom edges of the two connecting sections 601, and a rectangular support frame is formed by surrounding between the support bar 602 and the bottom edge. The two support bars 602 located in the middle are provided on both sides of a plurality of elastic compression portions 603. The elastic compression portions 603 are provided in the middle to facilitate the deformation of the tension spring 6. Two rectangular support frames are provided on both sides of the elastic compression portions 603, further ensuring that the middle part of the tension spring 6 will not be distorted, improving the service life of the tension spring 6 and ensuring the braking effect.

[0068] As Figure 3As shown, the elastic compression part 603 is composed of a plurality of bending structures with V-shaped and trapezoidal structures, so as to facilitate the formation of elastic compression in the middle and ensure the stability of the compression and rebound of the tension spring.

[0069] This embodiment also relates to a brake, which adopts the new energy vehicle brake caliper as described above.

[0070] The brake of this embodiment, by setting the new energy vehicle brake caliper as described above, can avoid the drag phenomenon after the parking release, reduce the wear of the friction plate, and extend the service life of the brake.

[0071] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A brake caliper for a new energy vehicle, characterized in that: It includes a caliper body (1), a driving component (2) arranged on one side of the caliper body (1) close to the inner friction plate (4), and a driving part (3) for driving the driving component (2) to approach or move away from the inner friction plate (4); The driving part (3) has a primary output end and a secondary output end; The driving component (2) includes a limiting component (201) connected to the primary output end, a pushing member (202) connected to the secondary output end, and a receiving and plugging component (203) connected to the inner friction plate (4); The limiting component (201) includes a limiting seat (2011), at least one locking member (2012) slidably connected to the limiting seat (2011). After the driving part (3) drives the locking member (2012) on the primary output end to approach the receiving and plugging component (203), the driving part (3) drives the pushing member (202) on the secondary output end to approach the locking member (2012) to drive the locking member (2012) to lock with the receiving and plugging component (203); A tension spring (6) is arranged between the inner friction plate (4) and the outer friction plate (5).

2. The brake caliper for a new energy vehicle according to claim 1, characterized in that: A limiting groove (20111) is arranged on the limiting seat (2011), and two locking members (2012) are slidably arranged in the limiting groove (20111) along the radial direction of the limiting seat (2011); The two locking members (2012) are arranged oppositely, and the adjacent ends of the two form a through groove (2013) in the shape of an "eight". The end of the pushing member (202) is provided with a conical section (2021), and the slope of the conical section (2021) is the same as the slope of the through groove (2013); The receiving and plugging components (203) are arranged in one-to-one correspondence with the locking members (2012).

3. The brake caliper for a new energy vehicle according to claim 2, characterized in that: One end of the locking member (2012) close to the locking member (2012) is provided with an extension part (20121), and a groove (2031) is arranged in the receiving and plugging component (203); When the pushing member (202) drives the two locking members (2012) to slide radially outward along the limiting seat (2011), the extension part (20121) is partially inserted into the groove (2031); A first elastic member (2015) is arranged between the locking member (2012) and the limiting seat (2011). When the pushing member (202) moves in a direction away from the inner friction plate (4), the first elastic member (2015) releases energy to disengage the extension part (20121) from the groove (2031).

4. The brake caliper for a new energy vehicle according to claim 3, characterized in that: A pin shaft (2014) is connected to the locking member (2012). A receiving hole (20112) for sliding of the pin shaft (2014) is provided on the limit seat (2011). The first elastic member (2015) is sleeved outside the pin shaft (2014).

5. The new energy vehicle brake caliper according to claim 1, wherein: The tension spring (6) includes two oppositely arranged connecting sections (601) and a support bar (602) arranged between the two connecting sections (601); The connecting section (601) is a trapezoidal structure with one end open, and the open ends are respectively connected to the inner friction plate (4) and the outer friction plate (5); An elastic compression part (603) is provided at the bottom of the connecting section (601), and a plurality of the elastic compression parts (603) are arranged at intervals along the vehicle body Y direction.

6. The new energy vehicle brake caliper according to claim 5, wherein: Four of the support bars (602) are arranged between the bottoms of the two connecting sections (601), and a rectangular support frame is formed between the support bar (602) and the bottom; The two support bars (602) located in the middle are arranged on both sides of the plurality of elastic compression parts (603).

7. A brake, characterized in that: The new energy vehicle brake caliper according to any one of claims 1 to 6 is adopted.

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