Caliper body assembly of electronic mechanical brake and electronic mechanical brake

Abstract

The utility model discloses a caliper body assembly of an electronic mechanical brake and the electronic mechanical brake, the caliper body assembly comprises a caliper body, the caliper body is provided with a first flange used for installing an MGU assembly, a first installation part used for assisting in fixing the MGU assembly and a second installation part used for installing a guide pin, the first flange, the first installation part and the second installation part are independently arranged, and the upper end face of the first flange, the upper end face of the first installation part and the upper end face of the second installation part are not located in the same plane. In the caliper body assembly, the MGU assembly is fixed through the first flange and the first mounting part, so that a motor in the MGU assembly is stably and reliably assembled, and noise and vibration of the motor can be reduced. Moreover, the first flange, the first mounting part and the second mounting part are independently arranged, so that the size of the first flange can be reduced, the processing difficulty of the first flange is reduced, the processing technology is simple, and the processing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle brake equipment, in particular to a caliper assembly of an electronic mechanical brake and an electronic mechanical brake. Background Art

[0002] Electronic mechanical brakes are a type of wire-controlled brakes with quick response and superior performance. Compared with traditional hydraulic brake systems, they eliminate components such as hydraulic oil pipelines and brake wheel cylinders, which not only solves the environmental pollution problem of hydraulic oil, but also simplifies the brake system structure, which is conducive to optimizing the vehicle chassis structure layout.

[0003] The electronic mechanical brake includes a bracket assembly, a caliper assembly disposed on the bracket assembly, and an MGU assembly disposed on the caliper assembly. Specifically, a first flange is disposed on the caliper assembly, and the MGU assembly is mounted on the first flange. The caliper assembly is floatingly mounted on the bracket assembly via a guide pin. In the prior art, the mounting portion of the guide pin is also integrated on the first flange, which makes the area of ​​the first flange larger, resulting in a large amount of machining and cutting, high requirements for flatness, and high processing costs. Moreover, in the prior art, the motor cantilever of the MGU assembly is disposed on the caliper assembly, which causes significant motor noise and vibration during operation of the electronic mechanical brake, and can easily cause damage to the motor. Utility Model Content

[0004] The purpose of the utility model is to provide an electronic mechanical brake with simple processing technology in view of the deficiencies in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A caliper assembly for an electronic mechanical brake includes a caliper body, wherein the caliper body is provided with a first flange for mounting an MGU assembly, a first mounting portion for auxiliary fixing of the MGU assembly, and a second mounting portion for mounting a guide pin, wherein the first flange, the first mounting portion, and the second mounting portion are independently arranged, and the upper end surface of the first flange, the upper end surface of the first mounting portion, and the upper end surface of the second mounting portion are not in the same plane.

[0007] In some embodiments, the caliper body includes a main body and a first extension arm extending to one side of the main body, the main body and the first extension arm are integrally provided, the first extension arm is provided with a through hole passing through the upper and lower end surfaces of the first extension arm, the MGU assembly includes a motor, the motor includes a motor housing, the through hole is adapted to the motor housing to accommodate the motor housing, the first flange is provided on the main body, the first mounting portion is provided on the first extension arm, and the first flange and the first mounting portion are respectively located on the left and right sides of the through hole.

[0008] In some embodiments, when the weight of the caliper body is not greater than 2 kg, the first mounting portion is a recessed portion recessed downward from the upper end surface of the first extension arm, and the upper end surface of the first mounting portion is lower than the upper end surface of the first flange.

[0009] In some embodiments, when the weight of the caliper body is not less than 5 kg, the first mounting portion is a boss protruding upward from the upper end surface of the first extension arm, and the upper end surface of the first mounting portion is higher than the upper end surface of the first flange.

[0010] In some embodiments, a reinforcing rib is provided on the front side and / or the rear side of the outer wall of the through hole.

[0011] In some embodiments, the caliper body also includes a second extension arm integrally provided with the main body, the first extension arm and the second extension arm are respectively provided on the left and right sides of the main body, the second mounting portion is respectively provided on the first extension arm and the second extension arm, and the upper end surfaces of the second mounting portions on the left and right sides are the same in height; on one side of the first extension arm, the first flange and the second mounting portion are respectively located on the left and right sides of the through hole, and the first mounting portion and the second mounting portion are staggered along the front-to-back direction.

[0012] In some embodiments, when the weight of the caliper body is no more than 2 kg, the upper end surface of the second mounting portion is located above the upper end surface of the first flange.

[0013] In some embodiments, when the weight of the caliper body is not less than 5 kg, the upper end surface of the second mounting portion is located below the upper end surface of the first flange.

[0014] In some embodiments, when the weight of the caliper body is greater than 2 kg and less than 5 kg, the upper end surface of the second mounting portion is located above the upper end surface of the first flange, or the upper end surface of the second mounting portion is located below the upper end surface of the first flange, or the upper end surface of the second mounting portion is at the same height as the upper end surface of the first flange.

[0015] Due to the application of the above technical solution, the present invention has the following advantages over the prior art: In the electromechanical brake caliper assembly of the present invention, in addition to the first flange for mounting and securing the MGU assembly, a first mounting portion is also provided on the caliper assembly to assist in securing the MGU assembly. This ensures stable and reliable assembly of the motor within the MGU assembly and reduces motor noise and vibration. Furthermore, the first flange, first mounting portion, and second mounting portion are independently provided, which reduces the size of the first flange, thereby simplifying its machining process and reducing manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attachment Figure 1 is an exploded schematic diagram of the electromechanical brake of this embodiment;

[0017] Attachment Figure 2 is a schematic front view of the electronic mechanical brake of this embodiment;

[0018] Attachment Figure 3 FIG2 is a second front view schematic diagram of the electronic mechanical brake of this embodiment;

[0019] Attachment Figure 4 This is one of the three-dimensional schematic diagrams of the caliper assembly of this embodiment;

[0020] Attachment Figure 5 This is the second perspective schematic diagram of the caliper assembly of this embodiment;

[0021] Attachment Figure 6 Schematic diagram of the MGU assembly of this embodiment.

[0022] Among them: 1. Bracket assembly; 2. Clamp body assembly; 21. First flange; 211. Upper end surface of the first flange; 22. First mounting portion; 22. Upper end surface of the first mounting portion; 23. Second mounting portion; 231. Upper end surface of the second mounting portion; 232. Ear hole; 24. Main body; 25. First extension arm; 251. Through hole; 26. Second extension arm; 27. Reinforcement rib; 3. MGU assembly; 31. Second flange; 32. Support ear; 321. Light hole; 33. Motor housing. DETAILED DESCRIPTION

[0023] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0026] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0027] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0029] like Figures 1 to 3 As shown, the electronic mechanical brake of the present invention includes a bracket assembly 1 , a caliper assembly 2 arranged on the bracket assembly, and an MGU assembly 3 arranged on the caliper assembly 2 .

[0030] A guide pin is fixedly provided on the caliper body assembly 2 and extends in the up and down directions. A guide pin mounting hole is provided on the bracket assembly 1 and the guide pin can be slidably arranged in the guide pin mounting hole, thereby floatingly installing the caliper body assembly 2 on the bracket assembly 1.

[0031] The caliper assembly 2 includes a caliper body and a piston that slides axially within the caliper body. When the piston slides, it actuates the brake pads mounted on the bracket assembly 1, thereby achieving braking. The MGU assembly 3 is used to actuate the piston axially.

[0032] The caliper body is provided with a first flange 21, a first mounting portion 22 and a second mounting portion 23. The first flange 21 is used to mount the MGU assembly 3, the first mounting portion 22 is used to assist in fixing the MGU assembly 3, and the second mounting portion 23 is used to mount the guide pin.

[0033] Specifically, a second flange 31 is provided on the MGU assembly 3 , and the first flange 21 and the second flange 31 are connected by bolts.

[0034] The first mounting portion 22 is provided with a screw hole, the MGU assembly 3 is provided with a support ear 32 , the support ear 32 is provided with a light hole 321 , and a bolt passes through the light hole 321 and is threadedly connected to the screw hole on the first mounting portion 22 .

[0035] The second mounting portion 23 is provided with an ear hole 232 , the guide pin is passed through the ear hole 232 , and a screw for fixing the guide pin is pressed onto the upper end surface 231 of the second mounting portion.

[0036] The first flange 21, the first mounting portion 22, and the second mounting portion 23 are independently provided, and the upper end surface 211 of the first flange, the upper end surface 221 of the first mounting portion, and the upper end surface 231 of the second mounting portion are not in the same plane. This reduces the size of the first flange 21, thereby reducing the difficulty of machining the first flange 21, simplifying the machining process, and thus reducing machining costs.

[0037] Specifically, the caliper body includes a main body 24 , a first extension arm 25 and a second extension arm 26 . The main body 24 is provided with a cavity in which a piston is axially slidable. The first flange 21 is provided on the top of the main body 24 .

[0038] The first extension arm 25 extends toward one side of the main body 24 . The main body 24 and the first extension arm 25 are integrally formed. The second mounting portion 22 is disposed on the first extension arm 25 and is located at an end of the first extension arm 25 away from the main body 24 .

[0039] The second extension arm 26 extends toward the other side of the main body 24, and the first extension arm 25 and the second extension arm 26 are respectively disposed on the left and right sides of the main body 24. The main body 24 and the second extension arm 26 are integrally formed. The second mounting portion 23 is respectively disposed on the first extension arm 25 and the second extension arm 26, with the upper end surfaces of the left and right second mounting portions 23 being at the same height. The second mounting portion 23 is located on both the first extension arm 25 and the second extension arm 26 at an end away from the main body 24.

[0040] The first extension arm 25 is provided with a through-hole 251 extending through the upper and lower ends of the first extension arm 25. The MGU assembly 3 includes a motor, which in turn includes a motor housing 33. The through-hole 251 can be adapted to the size and shape of the motor housing 33. When the MGU assembly 3 is mounted on the caliper body assembly 2, the motor housing 33 is accommodated in the through-hole 251. This reduces the layout space of the caliper assembly 2, making the electromechanical brake more compact and thus adaptable to a wider range of smaller wheel rims.

[0041] On one side of the first extension arm 25, the first flange 21 and the first mounting portion 22 are located on the left and right sides of the through-hole 251, respectively. This secures the motor on both sides during installation of the MGU assembly 3, improving motor assembly stability and reducing motor noise and vibration during operation of the electronic mechanical brake.

[0042] On one side of the first extension arm 25 , the first flange 21 and the second mounting portion 23 are respectively located on the left and right sides of the through hole 251 , and the first mounting portion 22 and the second mounting portion 23 are staggered along the front-to-back direction.

[0043] Reinforcing ribs 27 are provided on the front and / or rear sides of the outer wall of the through hole 251. The provision of the reinforcing ribs 27 can enhance the strength and rigidity of the first extension arm 25, thereby improving the stability of the motor and further reducing the generation of motor noise and vibration during the operation of the electronic mechanical brake.

[0044] When the weight of the clamp body is not greater than 2 kg, the first mounting portion 22 is a concave portion that is concave downward from the upper end surface of the first extension arm 25. At this time, the upper end surface 221 of the first mounting portion is lower than the upper end surface 211 of the first flange. Figure 4 shown.

[0045] When the weight of the caliper is not less than 5 kg, the first mounting portion 22 is a boss protruding upward from the upper end surface of the first extension arm 25. At this time, the upper end surface 221 of the first mounting portion is higher than the upper end surface 211 of the first flange. Figure 5 shown.

[0046] In addition, when the weight of the caliper body is not greater than 2 kg, the upper end surface 231 of the second mounting portion is located above the upper end surface 211 of the first flange 21, which allows the center of gravity of the caliper body to fall within the mounting area A of the guide pin dust cover within the guide pin mounting hole, thereby preventing the guide pin from tilting in the guide pin mounting hole due to the unstable center of gravity of the caliper body, and preventing the guide pin from getting stuck when sliding relative to the guide pin mounting hole. Figure 2 Preferably, the distance between the upper end surface 231 of the second mounting portion and the upper end surface 211 of the first flange is 15 to 20 mm.

[0047] When the weight of the caliper is not less than 5 kg, the upper end surface 231 of the second mounting portion is located below the upper end surface 211 of the first flange. This also allows the center of gravity of the caliper to fall within the mounting area A of the guide pin dust cover in the guide pin mounting hole. Figure 3 Preferably, the distance between the upper end surface 231 of the second mounting portion and the upper end surface 211 of the first flange is 5 to 10 mm.

[0048] When the weight of the caliper is greater than 2 kg and less than 5 kg, the upper end surface 231 of the second mounting portion can be located above the upper end surface of the first flange 211, below the upper end surface of the first flange 211, or at the same height as the upper end surface of the first flange 211. When the upper end surface 231 of the second mounting portion is located above the upper end surface of the first flange 211, the distance between the upper end surface 231 of the second mounting portion and the upper end surface 211 of the first flange is 0 to 15 mm. When the upper end surface 231 of the second mounting portion is located below the upper end surface 211 of the first flange, the distance between the upper end surface 231 of the second mounting portion and the upper end surface 211 of the first flange is 0 to 5 mm.

[0049] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A caliper assembly for an electromechanical brake, comprising a caliper body, characterized in that: The caliper body is provided with a first flange for mounting the MGU assembly, a first mounting portion for auxiliary fixing the MGU assembly, and a second mounting portion for mounting a guide pin. The first flange, the first mounting portion, and the second mounting portion are independently arranged, and the upper end surface of the first flange, the upper end surface of the first mounting portion, and the upper end surface of the second mounting portion are not in the same plane.

2. The caliper assembly of the electromechanical brake according to claim 1, characterized in that: The caliper body includes a main body and a first extension arm extending to one side of the main body, the main body and the first extension arm are integrally provided, the first extension arm is provided with a through hole passing through the upper and lower end surfaces of the first extension arm, the MGU assembly includes a motor, the motor includes a motor housing, the through hole is adapted to the motor housing to accommodate the motor housing, the first flange is provided on the main body, the first mounting portion is provided on the first extension arm, and the first flange and the first mounting portion are respectively located on the left and right sides of the through hole.

3. The caliper assembly of the electromechanical brake according to claim 2, characterized in that: When the weight of the caliper body is not greater than 2 kg, the first mounting portion is a recessed portion recessed downward from the upper end surface of the first extension arm, and the upper end surface of the first mounting portion is lower than the upper end surface of the first flange.

4. The caliper assembly of the electromechanical brake according to claim 2, characterized in that: When the weight of the caliper body is not less than 5 kg, the first mounting portion is a boss protruding upward from the upper end surface of the first extension arm, and the upper end surface of the first mounting portion is higher than the upper end surface of the first flange.

5. The caliper assembly of the electromechanical brake according to claim 2, characterized in that: A reinforcing rib is provided on the front side or / and the rear side of the outer wall of the through hole.

6. The caliper assembly of the electromechanical brake according to claim 2, characterized in that: The caliper body also includes a second extension arm integrally arranged with the main body, the first extension arm and the second extension arm are respectively arranged on the left and right sides of the main body, the second mounting portion is respectively arranged on the first extension arm and the second extension arm, and the upper end surfaces of the second mounting portions on the left and right sides are the same height; on one side of the first extension arm, the first flange and the second mounting portion are respectively located on the left and right sides of the through hole, and the first mounting portion and the second mounting portion are staggered along the front-to-back direction.

7. The caliper assembly of the electromechanical brake according to claim 1, characterized in that: When the weight of the caliper body is not greater than 2 kg, the upper end surface of the second mounting portion is located above the upper end surface of the first flange.

8. The caliper assembly of the electromechanical brake according to claim 1, characterized in that: When the weight of the caliper body is not less than 5 kg, the upper end surface of the second mounting portion is located below the upper end surface of the first flange.

9. The caliper assembly of an electromechanical brake according to claim 1, characterized in that: When the weight of the caliper body is greater than 2 kg and less than 5 kg, the upper end surface of the second mounting portion is located above the upper end surface of the first flange, or the upper end surface of the second mounting portion is located below the upper end surface of the first flange, or the upper end surface of the second mounting portion is at the same height as the upper end surface of the first flange.

10. An electromechanical brake, characterized in that: The invention comprises a caliper assembly according to any one of claims 1 to 9.

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