Parking brake assembly of electric automobile

Abstract

The invention discloses an electric automobile parking brake assembly which comprises a mounting bracket, a parking stay wire and an operating handle frame rotatably arranged on the mounting bracket, and further comprises a stay wire guide structure for guiding the parking stay wire, and the operating handle frame is connected with one end of the parking stay wire. And the stay wire guide structure comprises an arc-shaped guide structure integrated on the side surface of the operating handle frame and a stay wire guide frame which is independently and fixedly arranged. The parking brake assembly of the electric automobile is reasonable in structural design, the parking stay wire guide structure is divided into the arc-shaped guide structure integrated on the side face of the operation structure and the stay wire guide frame which is independently and fixedly arranged, and the arc-shaped guide structure and the stay wire guide frame are combined for guiding, so that the structure is compact, stable and reliable.

Description

Technical Field

[0001] This invention relates to the field of electric vehicle technology, and in particular to an electric vehicle parking brake assembly. Background Technology

[0002] In micro electric vehicles, the parking brake lever is an important component of the vehicle's parking brake system. The driver can park or release the vehicle by manipulating the parking brake lever to activate the parking cable. The vehicle's parking brake assembly has a guide structure to guide the parking cable, ensuring that the parking cable runs in the set direction. Since the parking cable is subjected to a large force, the reliability of the guide structure is very important. Due to limited space, the guide structure needs to occupy a small space.

[0003] For example, patent CN201721437U discloses a parking brake operating mechanism, which includes a base plate bracket and a rotating shaft pivotally mounted on the base plate bracket. One end of the rotating shaft is fixedly connected to a handle. The base plate bracket is provided with ratchet teeth. The handle is provided with a pawl that cooperates with the ratchet teeth, a pawl return structure, and a pawl release structure. The other end of the rotating shaft is fixedly connected to a transmission plate. A winch for connecting to the parking cable is movably sleeved on the rotating shaft. The winch is provided with ratchet teeth. Its operating mechanism does not have a parking cable guide structure, which needs to be arranged separately and occupies a large space. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an electric vehicle parking brake assembly in which the parking cable guide structure is integrated into the operating structure, resulting in a compact structure.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: The electric vehicle parking brake assembly includes a mounting bracket, a parking cable, and a rotatable operating handle bracket mounted on the mounting bracket. The operating handle bracket is connected to one end of the parking cable. It also includes a cable guide structure for guiding the parking cable. The cable guide structure includes an arc-shaped guide structure integrated on the side of the operating handle bracket and an independently fixed cable guide bracket.

[0006] Further or preferred: The arc-shaped guide structure is a side plate fixed to the side of the operating handle frame. The edge of the side plate is provided with an arc-shaped outward flange, and the arc-shaped outward flange and the side of the operating handle frame form an arc-shaped guide groove.

[0007] The rear of the operating handle bracket is a rotating plate, and the main structure of the side plate is attached and fixed to the side of the rotating plate.

[0008] A fixing sleeve is provided above the rotating plate, and the end of the parking cable passes through the fixing sleeve for positioning.

[0009] The side plate has a limiting guide wheel below the arc-shaped outward flange, and the parking cable passes between the arc-shaped guide groove and the limiting guide wheel.

[0010] The cable guide includes an upper guide plate and a lower guide plate formed by bending. The bending part is provided with a through hole for the parking cable to pass through. The upper guide plate and the lower guide plate are provided with positioning holes for installation and positioning.

[0011] The upper guide plate is provided with an upper positioning hole, which is a round hole, and the lower guide plate is provided with a lower positioning hole, which is an open hole. The upper positioning hole and the lower positioning hole are provided correspondingly.

[0012] Both the upper and lower guide plates have an arc-shaped notch at their rear, and a guide post is fixed in the arc-shaped notch. The guide post has a guide hole for the parking cable to pass through.

[0013] The guide holes and through holes are provided correspondingly.

[0014] Compared with the prior art, the present invention has the following advantages: The electric vehicle parking brake assembly has a reasonable structural design. The parking cable guide structure is divided into an arc-shaped guide structure integrated on the side of the operating structure and a separately fixed cable guide. The combination of the two provides guidance, resulting in a compact, stable and reliable structure. Attached Figure Description

[0015] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings: Figure 1 This is a schematic diagram of the parking brake assembly of the present invention.

[0016] Figure 2 This is a schematic diagram of the internal structure of the assembly of the present invention.

[0017] Figure 3 and Figure 4 This is a schematic diagram of the wire guide structure of the present invention.

[0018] In the picture: 1. Operating handle sleeve; 2. Operating handle bracket; 201. Arc-shaped guide structure; 202. Limiting guide wheel; 3. Mounting bracket; 4. Parking cable; 5. Cable guide bracket; 501. Upper guide plate; 502. Upper positioning hole; 503. Lower guide plate; 504. Lower positioning hole; 505. Guide post; 5051. Guide hole. Detailed Implementation

[0019] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and through the description of the examples.

[0020] like Figures 1 to 4As shown, the electric vehicle parking brake assembly includes a mounting bracket 3, a parking cable 4, a rotatable operating handle bracket 2 mounted on the mounting bracket, and a cable guide structure for guiding the parking cable. The operating handle bracket 2 is covered with an operating handle sleeve 1. The operating handle bracket is connected to one end of the parking cable. The rear part of the operating handle bracket is mounted on the mounting bracket via a pivot. The bottom of the mounting bracket is provided with a bending plate with mounting holes. The cable guide structure guides the parking cable to ensure that the parking cable runs in the set direction.

[0021] The cable guide structure includes an arc-shaped guide structure 201 integrated on the side of the operating handle frame and an independently fixed cable guide frame 5. The arc-shaped guide structure 201 is integrated on the operating handle frame 2, and the structure is compact. The independently fixed cable guide frame 5 is fixed to the vehicle body, and it is stable and reliable. The two work together to guide the cable, and the cable guidance is relatively stable.

[0022] The arc-shaped guide structure 201 is a side plate fixed to the side of the operating handle frame. The edge of the side plate is provided with an arc-shaped outward flange, which forms an arc-shaped guide groove with the side of the operating handle frame. The side plate is welded and fixed to the side of the operating handle frame, and forms an arc-shaped guide groove through its own structure, resulting in a compact structure.

[0023] The rear of the operating handle bracket is a rotating plate. The main structure of the side plate and the side of the rotating plate are welded together and fixed, ensuring a stable and reliable structure. A fixing sleeve is provided above the rotating plate, through which the end of the parking cable passes for positioning, making connection simple.

[0024] A limiting guide wheel 202 is provided below the arc-shaped outward flange of the side panel. The parking cable passes between the arc-shaped guide groove and the limiting guide wheel 202, limiting the rotation of the guide wheel itself and ensuring stable and reliable guidance. A rotating shaft is welded below the arc-shaped outward flange of the side panel, or a limiting frame is welded to it, with a rotating shaft welded to the limiting frame. The limiting guide wheel is installed on the rotating shaft, which is an integrated and compact design.

[0025] like Figure 3 and Figure 4 As shown, the cable guide 5 includes an upper guide plate 501 and a lower guide plate 503 that are bent and integrally formed. The bend is provided with a through hole for the parking cable to pass through, and the upper and lower guide plates are provided with positioning holes for installation and positioning.

[0026] The upper guide plate is provided with an upper positioning hole 502, which is a round hole, and the lower guide plate is provided with a lower positioning hole 504, which is an open hole. The upper positioning hole and the lower positioning hole are set correspondingly. The open hole setting avoids the problem of fitting accuracy and makes the installation simple.

[0027] The wire guide frame is an integral bent plate structure, which is stable and reliable. The bends are arc-shaped transitions, and the through holes are located in the middle of the bends. Both the upper and lower guide plates have arc-shaped notches at their rear ends, and guide posts 505 are fixed in the arc-shaped notches. The guide posts have guide holes 5051 for the parking cable to pass through. The guide holes and through holes are set in a corresponding manner, and the parking cable is limited and guided by the cooperation of the through holes and guide holes, which is stable and reliable.

[0028] The electric vehicle parking brake assembly of this invention has a reasonable structural design. The parking cable guide structure is divided into an arc-shaped guide structure integrated on the side of the operating structure and a separately fixed cable guide frame. The combination of the two provides guidance, resulting in a compact, stable, and reliable structure. Furthermore, the arc-shaped guide structure and cable guide frame structure are relatively simple, easy to manufacture, and have a relatively low cost.

[0029] The above description is merely an illustration of preferred embodiments of the present invention, and the above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0030] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the concept and technical solution of the present invention, or the direct application of the concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A parking brake assembly for an electric vehicle, comprising a mounting bracket, a parking cable, and a rotatable operating handle bracket mounted on the mounting bracket, wherein the operating handle bracket is connected to one end of the parking cable, characterized in that: It also includes a cable guide structure for guiding the parking cable, the cable guide structure comprising an arc-shaped guide structure integrated on the side of the operating handle bracket and a separately fixed cable guide frame.

2. The electric vehicle parking brake assembly as described in claim 1, characterized in that: The arc-shaped guide structure is a side plate fixed to the side of the operating handle frame. The edge of the side plate is provided with an arc-shaped outward flange, and the arc-shaped outward flange and the side of the operating handle frame form an arc-shaped guide groove.

3. The electric vehicle parking brake assembly as described in claim 2, characterized in that: The rear of the operating handle bracket is a rotating plate, and the main structure of the side plate is attached and fixed to the side of the rotating plate.

4. The electric vehicle parking brake assembly as described in claim 3, characterized in that: A fixing sleeve is provided above the rotating plate, and the end of the parking cable passes through the fixing sleeve for positioning.

5. The electric vehicle parking brake assembly as described in claim 3, characterized in that: The side plate has a limiting guide wheel below the arc-shaped outward flange, and the parking cable passes between the arc-shaped guide groove and the limiting guide wheel.

6. The electric vehicle parking brake assembly as described in claim 1, characterized in that: The cable guide includes an upper guide plate and a lower guide plate formed by bending. The bending part is provided with a through hole for the parking cable to pass through. The upper guide plate and the lower guide plate are provided with positioning holes for installation and positioning.

7. The electric vehicle parking brake assembly as described in claim 6, characterized in that: The upper guide plate is provided with an upper positioning hole, which is a round hole, and the lower guide plate is provided with a lower positioning hole, which is an open hole. The upper positioning hole and the lower positioning hole are provided correspondingly.

8. The electric vehicle parking brake assembly as described in claim 6, characterized in that: Both the upper and lower guide plates have an arc-shaped notch at their rear, and a guide post is fixed in the arc-shaped notch. The guide post has a guide hole for the parking cable to pass through.

9. The electric vehicle parking brake assembly as described in claim 8, characterized in that: The guide holes and through holes are provided correspondingly.

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