A brake caliper body assembly, a brake caliper and a vehicle

Abstract

The application discloses a brake caliper body assembly, a brake caliper and a vehicle, and belongs to the brake caliper field. The brake caliper body assembly comprises a caliper body (1), wherein a recessed groove (1.2) is arranged at a jaw side end face (1.1) of the caliper body (1), and the brake caliper body assembly is configured to change its own weight and mode by adjusting the depth of the groove (1.2). The brake caliper body assembly, the brake caliper and the vehicle can effectively improve the NVH performance, shorten the NVH performance matching time and save the cost.

Description

Technical Field

[0001] This invention relates to the field of brake calipers, and in particular to a brake caliper assembly, a brake caliper, and a vehicle. Background Technology

[0002] Automotive braking systems achieve braking through the friction between the brake pads and brake discs. Most passenger cars now use floating brake calipers for both front and rear brakes. During braking, vibrations occur between the brake pads and brake discs. Low-frequency vibrations manifest as vibrations, while high-frequency vibrations manifest as noise. Vibration and noise issues are collectively referred to as NVH (Noise, Vibration, Harshness) problems, which affect driving comfort and are currently a major concern for customers.

[0003] Currently, there are two main methods to improve the NVH performance of brake calipers: one is to change the natural frequency and pressure distribution of the friction pads, mainly by changing the shape of the friction pads, such as slotting, chamfering, or adding noise-absorbing pads; the other is to change the natural frequency of the brake caliper, mainly by changing the structural shape and weight of the caliper body and bracket, thereby changing its mode.

[0004] In other words, improving the NVH performance of brake calipers can be achieved by changing the caliper modes. The traditional method involves altering the shape and weight of the caliper body to change the caliper modes. This method has two limitations: first, it requires modification of the casting mold, resulting in a long repair cycle and high costs; second, it cannot perform large-scale modal adjustments, potentially failing to achieve the desired results. Summary of the Invention

[0005] In view of the above problems, the present invention is proposed to provide a brake caliper assembly, brake caliper and vehicle that overcomes or at least partially solves the above problems.

[0006] One objective of the first aspect of this invention is to provide a brake caliper assembly that can effectively improve its NVH performance.

[0007] Another objective of this invention is to shorten the time required for NVH performance matching and reduce costs.

[0008] A second aspect of the present invention is to provide a brake caliper including the above-described brake caliper assembly.

[0009] A third aspect of the present invention is to provide a vehicle comprising the aforementioned brake calipers.

[0010] In particular, according to a first aspect of the present invention, a brake caliper assembly is provided, comprising:

[0011] The caliper body has recessed grooves on the end face of its claws, and the brake caliper assembly is configured to change its weight and modality by adjusting the depth of the grooves.

[0012] Optionally, the trench is arc-shaped.

[0013] Alternatively, the clamp body is formed by casting, and the grooves are formed by machining.

[0014] Optionally, the brake caliper assembly also includes:

[0015] A buffer pad is disposed in the groove, with one side abutting against the bottom surface of the groove. The brake caliper assembly is configured to change its own weight and modality by adjusting the thickness and shape of the buffer pad and the depth of the groove.

[0016] Optionally, the shape of the cushioning pad is adapted to the groove, and both sidewalls of the groove abut against the cushioning pad.

[0017] Optionally, the cushioning pad is made of rubber or soft plastic and is configured to change its shape and thickness by hand cutting.

[0018] Optionally, the brake caliper assembly also includes:

[0019] The decorative panel has one side abutting against the side of the buffer pad away from the groove. The decorative panel is fixedly connected to the caliper body. The brake caliper assembly is configured to change the weight and modality of the brake caliper assembly by adjusting the thickness and shape of the buffer pad, the thickness and shape of the decorative panel, and the depth of the groove.

[0020] Alternatively, the decorative panel can be cast and its shape and thickness can be changed by machining.

[0021] Optionally, the decorative panel includes a main body, which includes an arcuate portion and a suspended portion arranged sequentially along the radial direction of the clamp body. One side of the arcuate portion abuts against the buffer pad, and the suspended portion extends to completely cover the large process hole at the end face of the claw side.

[0022] Optionally, the decorative panel also includes a connecting boss located on the side of the main body near the buffer pad, and the connecting boss is provided with a fixing hole;

[0023] The clamp body is provided with threaded holes corresponding to the fixing holes;

[0024] The brake caliper assembly also includes a fastening assembly that mates with mounting holes and threaded holes to secure the trim panel to the caliper body.

[0025] Optionally, the fastening components include bolts and spring washers.

[0026] Optionally, both the groove and the buffer pad are provided with notches to allow the connecting boss to pass through.

[0027] In particular, according to a second aspect of the present invention, a brake caliper is provided, comprising the brake caliper assembly described in any of the preceding embodiments.

[0028] In particular, according to a third aspect of the present invention, a vehicle is provided, including the brake calipers described above.

[0029] In this invention, grooves are machined on the claw side end face of the caliper body. By controlling the depth of the grooves, the weight and modality of the entire brake caliper assembly can be changed, thereby adjusting the modality of the brake caliper assembly and improving the NVH performance of the brake caliper assembly.

[0030] Furthermore, the grooves of the clamp body and the structural changes of the decorative plate in this invention are formed by machining. This adjustment method does not require modification of the casting molds of the clamp body and the decorative plate, thus the adjustment cycle is short and the cost is low.

[0031] Furthermore, during the NVH matching process, this invention allows for the fine-tuning of grooves, buffer pads, and decorative panels to obtain brake caliper assemblies with different modes, thereby improving the NVH performance of the brake caliper. The parameters of each of the aforementioned components can be adjusted individually or simultaneously, achieving diversification of adjustment methods.

[0032] Furthermore, the structural changes in the grooves occur directly on the caliper body, and the buffer pads and decorative panels are directly connected to the caliper body. Therefore, the modal influence on the brake caliper assembly is quite significant, enabling the brake caliper assembly to undergo modal changes over a wide range, ultimately achieving ideal NVH matching results.

[0033] Furthermore, the curved portion of the decorative panel of the present invention can cover the buffer pad and groove, and the suspended portion can completely cover the large process hole at the end face of the caliper, so that the brake caliper assembly has a sense of unity. Personalized logos can also be engraved on the decorative panel to improve the appearance quality of the brake caliper assembly.

[0034] The above description is merely an overview of the technical solution of the present invention. In order to enable those skilled in the art to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below.

[0035] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0036] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0037] Figure 1 This is a schematic diagram of the structure of a brake caliper assembly according to an embodiment of the present invention;

[0038] Figure 2 yes Figure 1 A cross-sectional view of the brake caliper assembly;

[0039] Figure 3 This is a schematic diagram of the structure of the caliper body of a brake caliper assembly according to an embodiment of the present invention;

[0040] Figure 4 This is a schematic diagram of the structure of the buffer pad of a brake caliper assembly according to an embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of the structure of the decorative panel of a brake caliper assembly according to an embodiment of the present invention;

[0042] Figure 6 This is a schematic diagram of the fastening assembly of a brake caliper assembly according to an embodiment of the present invention. Detailed Implementation

[0043] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0044] Figure 1 This is a schematic diagram of the structure of a brake caliper assembly according to an embodiment of the present invention. Figure 2 yes Figure 1 A cross-sectional view of the brake caliper assembly. (See image.) Figure 1 and Figure 2 As shown, in one embodiment, the brake caliper assembly generally includes a caliper body 1. Of course, the brake caliper assembly may further include other components, which will be described later. Figure 3 A schematic diagram of the clamp body 1 is shown, as follows: Figure 3 As shown, a recessed groove 1.2 is provided at the claw side end face 1.1 of the caliper body 1. In this embodiment, the brake caliper assembly is configured to change its own weight and mode by adjusting the depth of the groove 1.2.

[0045] In this embodiment, the claw side end face 1.1 of the caliper body 1 is machined to form a groove 1.2. By controlling the depth of the groove 1.2, the weight and mode of the entire brake caliper assembly can be changed, thereby adjusting the mode of the brake caliper assembly and improving the NVH performance of the brake caliper assembly.

[0046] Furthermore, the groove 1.2 provides space for the addition of other components, thus providing a basis for altering the weight and modality of the brake caliper assembly. In other embodiments, the brake caliper assembly can also incorporate other components at the groove 1.2 to modify its overall weight and modality, such as… Figure 1 The buffer pad 2 and decorative plate 3 shown can also change the weight and modality of the brake caliper assembly by changing their shape and thickness.

[0047] In one embodiment, such as Figure 3 As shown, the groove 1.2 is arc-shaped. Since the claw side end face 1.1 of the clamp body 1 is arc-shaped as a whole, the groove 1.2 provided in this embodiment is adapted to the shape of the claw side end face 1.1.

[0048] Furthermore, the clamp body 1 is formed by casting, and the groove 1.2 is formed by machining.

[0049] Generally, the brake caliper body 1 is formed by casting, while the groove 1.2 in this embodiment is formed by machining. This allows the depth of the groove 1.2 to be adjusted as needed, thereby adjusting the NVH performance of the brake caliper assembly. This adjustment method does not require modification of the casting mold of the caliper body 1, thus resulting in a short adjustment cycle and low cost.

[0050] In one embodiment, such as Figure 2 As shown, the brake caliper assembly also includes a buffer pad 2, disposed within the groove 1.2, with one side abutting against the bottom surface of the groove 1.2. Optionally, the buffer pad 2 is made of rubber or soft plastic. The brake caliper assembly can change its weight and modality by adjusting the thickness and shape of the buffer pad 2, or by simultaneously adjusting the thickness and shape of the buffer pad 2 and the depth of the groove 1.2.

[0051] In one embodiment, such as Figure 1 and Figure 2 As shown, the brake caliper assembly also includes a decorative panel 3, one side of which abuts against the side of the buffer pad 2 away from the groove 1.2, and the decorative panel 3 is fixedly connected to the caliper body 1. The brake caliper assembly is configured to change the weight and modality of the brake caliper assembly by adjusting one or more parameters of the thickness and shape of the buffer pad 2, the thickness and shape of the decorative panel 3, and the depth of the groove 1.2.

[0052] In an embodiment of the present invention, a buffer pad 2 and a decorative plate 3 are added to the groove 1.2 of the caliper body 1. Therefore, the modality of the entire brake caliper assembly can be adjusted by making structural changes to the three components of the groove 1.2, the buffer pad 2 and the decorative plate 3, thereby improving the NVH performance of the brake caliper assembly.

[0053] If NVH performance needs to be improved by reducing the weight of the caliper body 1, the groove 1.2 can be machined deeper, and the decorative plate 3 and the buffer pad 2 can be moved inward as a whole (towards the side of the caliper body 1 with the piston hole). Alternatively, the axial dimension can be compensated by increasing the thickness of the buffer pad 2. Neither solution affects other performance characteristics of the brake caliper. If NVH performance needs to be improved by increasing the weight of the caliper body 1, the groove 1.2 can be machined shallower, and the decorative plate 3 and the buffer pad 2 can be moved inwards towards the caliper claw side. Alternatively, the axial dimension can be compensated by reducing the thickness of the buffer pad 2. Neither solution affects other performance characteristics of the brake caliper.

[0054] If improving NVH requires using a thicker buffer pad 2, the axial dimension can be compensated using the following two methods: Method 1, push the trim panel 3 outwards; Method 2, deepen the groove 1.2. Neither method affects other performance characteristics of the brake caliper. If improving NVH requires using a thinner rubber pad, the axial dimension can be compensated using the following two methods: Method 1, push the trim panel 3 inwards; Method 2, shallowen the groove 1.2. Neither method affects other performance characteristics of the brake caliper.

[0055] In addition, the weight and modality can be changed by altering the shape of the cushioning pad 2 and the decorative panel 3.

[0056] In one embodiment, the decorative panel 3 is formed by casting and then machined to change its shape and thickness.

[0057] Since the decorative panel 3 can be formed by casting, when it is necessary to change its shape and / or thickness to match NVH performance, the thickness can be reduced or its dimensions can be decreased by machining, thereby changing the weight and modality of the brake caliper assembly and improving the NVH performance of the brake caliper. This adjustment method does not require changing the mold of the decorative panel 3, so the cycle time is short and the cost is low.

[0058] In one embodiment, the cushioning pad 2 is modified in shape and thickness by hand cutting.

[0059] The buffer pad 2 can be punched and formed. During the NVH performance matching stage, it can be manually cut into different sizes and shapes as needed, thereby changing the thickness and shape of the buffer pad 2, and thus changing the weight and modality of the brake caliper assembly, improving the NVH performance of the brake caliper. This adjustment method is simple to operate, has a short adjustment cycle, and is low in cost.

[0060] Furthermore, the buffer pad 2 has sound absorption and vibration damping effects, which further helps to improve the NVH performance of the brake caliper.

[0061] During the NVH matching process, different modal brake caliper assemblies can be obtained by fine-tuning the groove 1.2, buffer pad 2, and decorative plate 3, thereby improving the NVH performance of the brake caliper. The matching work is convenient, has a short matching cycle, and is low in cost. The parameters of the above-mentioned components can be adjusted individually or simultaneously, realizing diversified adjustment methods. The structural changes of the groove 1.2 occur directly on the caliper body 1, and the buffer pad 2 and decorative plate 3 are directly connected to the caliper body 1. Therefore, they have a significant impact on the modal characteristics of the brake caliper assembly, enabling modal changes of the brake caliper assembly within a wide range, ultimately achieving the ideal NVH matching result.

[0062] Figure 4 This is a schematic diagram of the structure of the buffer pad 2 of the brake caliper assembly according to an embodiment of the present invention. Figure 4 As shown, the shape of the buffer pad 2 is adapted to the groove 1.2, and both sidewalls of the groove 1.2 abut against the buffer pad 2 (see...). Figure 2 This achieves radial positioning of the buffer pad 2.

[0063] Figure 5 This is a schematic diagram of the structure of the decorative panel 3 of a brake caliper assembly according to an embodiment of the present invention. Figure 5 As shown, the decorative panel 3 includes a main body, which comprises an arcuate portion 3.1 and a suspended portion 3.2 arranged sequentially along the radial direction of the clamp body 1. Figure 1 and Figure 2 As shown, one side of the arc portion 3.1 abuts against the buffer pad 2, and the suspended portion 3.2 extends to the large process hole 1.3 at the end face 1.1 of the claw side, which is completely covered.

[0064] In this embodiment, the arc portion 3.1 can cover the buffer pad 2 and the groove 1.2, and the suspended portion 3.2 can completely cover the large process hole at the side end face 1.1 of the pawl, so that the brake caliper assembly has a sense of unity. Personalized logos can also be engraved on the decorative panel 3 to improve the appearance quality of the brake caliper assembly.

[0065] like Figure 5 As shown, the decorative panel 3 also includes a connecting boss 3.4, which is located on the side of the main body near the buffer pad 2. The connecting boss 3.4 has a fixing hole 3.3. The caliper body 1 has a threaded hole 1.4 corresponding to the fixing hole 3.3. The brake caliper assembly also includes a fastening assembly, which mates with the fixing hole 3.3 and the threaded hole 1.4 to fix the decorative panel 3 to the caliper body 1.

[0066] Figure 6 This is a schematic diagram of the fastening assembly of a brake caliper assembly according to an embodiment of the present invention. Figure 6As shown, in this embodiment, the fastening assembly includes a bolt 5 and a spring washer 4, with the spring washer 4 used to prevent the bolt from loosening. The bolt 5 passes through the spring washer 4 and the fixing hole 3.3 in sequence and then engages with the threaded hole 1.4 of the clamp body 1 to tighten it, thereby firmly fixing the decorative plate 3 to the clamp body 1.

[0067] like Figure 3 As shown, the groove 1.2 is provided with a notch 1.5 to allow the connecting boss 3.4 to pass through. (As...) Figure 4 As shown, the buffer pad 2 has a notch 2.1 for allowing the connecting boss 3.4 to pass through. The notch 2.1 of the buffer pad 2 mates with the connecting boss 3.4, achieving circumferential positioning of the buffer pad 2. The buffer pad 2 abuts against the clamp body 1 and the decorative plate 3 on both sides in its thickness direction, respectively, achieving axial positioning of the buffer pad 2.

[0068] The present invention also provides a brake caliper, including the brake caliper assembly of any of the above embodiments or combinations thereof.

[0069] The present invention also provides a vehicle including the above-described brake caliper.

[0070] During the NVH matching process, different modal brake caliper assemblies can be obtained by fine-tuning the grooves 1.2, buffer pads 2, and decorative plates 3 of the brake caliper assembly, thereby improving the NVH performance of the brake caliper. The matching work is convenient, with a short matching cycle and low cost. The parameters of the above-mentioned components can be adjusted individually or simultaneously, realizing diversified adjustment methods. Furthermore, the structural changes of grooves 1.2 occur directly on the caliper body 1, and buffer pads 2 and decorative plates 3 are directly connected to the caliper body 1. Therefore, they have a significant impact on the modal characteristics of the brake caliper assembly, enabling modal changes of the brake caliper assembly within a wide range, ultimately achieving the ideal NVH matching result.

[0071] Therefore, those skilled in the art should recognize that although exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A brake caliper assembly, comprising: a caliper body having a recessed groove at a claw side end face of the caliper body; a buffer pad disposed in the groove and abutting against a bottom surface of the groove at one side of the buffer pad; and a decorative plate abutting against one side of the buffer pad away from the groove, the decorative plate being fixedly connected to the caliper body, the brake caliper assembly being configured to change a weight and a mode of the brake caliper assembly by adjusting one or more of a thickness and a shape of the buffer pad, a thickness and a shape of the decorative plate; wherein the decorative plate comprises a main body portion and a connecting boss disposed at one side of the main body portion close to the buffer pad, the connecting boss being provided with a fixing hole; the caliper body is provided with a threaded hole corresponding to the fixing hole; the brake caliper assembly further comprises a fastening assembly cooperating with the fixing hole and the threaded hole to fixedly connect the decorative plate to the caliper body. The brake caliper assembly is further configured to change the weight and the mode of the brake caliper assembly by adjusting a depth of the groove.

2. The brake caliper assembly of claim 1, wherein, 3.The brake caliper assembly according to claim 1, wherein the groove is arc-shaped. 4.The brake caliper assembly according to claim 1, wherein the caliper body is formed by casting, and the groove is formed by machining. 5.The brake caliper assembly according to any one of claims 1-4, wherein the shape of the buffer pad is adapted to the groove, and both side walls of the groove abut against the buffer pad. 6.The brake caliper assembly according to any one of claims 1-4, wherein the buffer pad is made of rubber or soft plastic and is configured to change its own shape and thickness by manual cutting. 7.The brake caliper assembly according to any one of claims 1-4, wherein the decorative plate is formed by casting and changes its own shape and thickness by machining. 8.The brake caliper assembly according to any one of claims 1-4, wherein the main body portion comprises a circular arc portion and a suspended portion arranged in sequence along a radial direction of the caliper body, one side of the circular arc portion abutting against the buffer pad, and the suspended portion extending to completely shield a large process hole at the claw side end face. 9.The brake caliper assembly according to claim 1, wherein the fastening assembly comprises a bolt and a spring washer. 10.The brake caliper assembly according to claim 1, wherein both the groove and the buffer pad are provided with a notch for allowing the connecting boss to pass through. 11.A brake caliper comprising the brake caliper assembly according to any one of claims 1-10. 12.A vehicle comprising the brake caliper according to claim 11. ​

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