An adaptive deformation OBC power cable fixing structure

Abstract

This utility model relates to the field of wire harness management, and more particularly to an adaptive deformation OBC power cable fixing structure, including two fixing rings with bolt holes at corresponding positions. The OBC power cable is placed between the two fixing rings. The cable is fixed by tightening bolts through the bolt holes, allowing adjustment of the fixing tightness. Spring A allows the support frame to slide elastically, adapting to height differences caused by changes in cable diameter, ensuring the center of the clamp is always aligned with the cable axis. The clamp rotates elastically through the coordinated action of spring B and spring plates, conforming to the curved surface of cables of different diameters. Anti-slip pads enhance friction, while rubber pads and protective pads reduce rigid contact wear, absorbing external impacts such as vehicle vibrations and preventing cable loosening or sheath damage due to shaking. This meets the stable fixing requirements of OBC power cables under complex working conditions.

Description

Technical Field

[0001] This utility model relates to the field of wire harness management, and in particular to an adaptive deformation OBC power cable fixing structure. Background Technology

[0002] In the field of new energy vehicles, the on-board charger (OBC) is a core component connecting the external power source and the power battery, and the stable fixing of its power cable directly affects the charging safety and reliability. Existing OBC power cable fixing structures mostly use rigid clips, cable ties, or fixing clamps. These structures have significant drawbacks: Firstly, traditional fixing devices have fixed dimensions and can only accommodate cables of specific diameters. When the cable size changes due to differences in model, specifications, or outer sheath design, problems such as loose clamping leading to cable swaying and wear, or excessive tightness causing outer sheath damage, can easily occur. Secondly, vibrations and bumps generated during vehicle operation create high-frequency friction between the rigid fixing structure and the cable. Lacking a buffer protection mechanism, long-term use can easily damage the cable insulation layer and even lead to short circuit risks. Furthermore, existing technologies generally lack adaptive adjustment functions for cable deformation under different operating conditions, failing to meet the high stability and high compatibility requirements of new energy vehicles for high-voltage cable fixing. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology that cannot fix OBC power cables of different sizes, the purpose of this utility model is to provide an adaptive deformation OBC power cable fixing structure.

[0004] The technical solution is as follows: An adaptive deformation OBC power cable fixing structure includes two fixing rings. Bolt holes are provided at corresponding positions on the two fixing rings. The OBC power cable is placed between the two fixing rings and fixed by tightening bolts through the bolt holes. The tightness of the fixing is adjustable. A square groove is provided in the middle of the fixing ring facing the cable. A guide rail is provided on the inner wall of the square groove. Slider blocks that cooperate with the guide rail are provided on both sides of the support frame, thereby realizing the sliding connection of the support frame within the square groove. Limiting rods are symmetrically fixedly connected to the top of the support frame. Through holes for the limiting rods to pass through are provided at corresponding positions on the fixing rings. The limiting rods are slidably connected to the through holes. A spring A is sleeved on the limiting rod. One end of the spring A is fixedly connected to the end of the limiting rod, and the other end of the spring A is fixedly connected to the support frame. The spring A can buffer and reset the sliding of the support frame.

[0005] As an improvement to the above solution, a clamping plate is also included. The left and right sides of the support frame are rotatably connected to the clamping plate via pins. The clamping plate can rotate flexibly around the pins. The clamping plate is arc-shaped and has the same curvature as the fixing ring facing the cable side, so that it can fit tightly against the cable. Springs B are provided between the front and rear sides of the clamping plate and the support frame. One end of the spring B is fixedly connected to the support frame, and the other end of the spring B is fixedly connected to the clamping plate. When the cable size changes, the spring B can push the clamping plate to rotate, so as to achieve adaptive clamping of the cable.

[0006] As an improvement to the above solution, an anti-slip pad is also included. Each of the clamps is provided with a wavy anti-slip pad made of silicone material, which fits tightly against the curved surface of the clamp.

[0007] As an improvement to the above solution, a rubber pad is also included, with the rubber pad provided on the opposite side of both fixing rings.

[0008] As an improvement to the above solution, a spring sheet is also included. Each clamping plate and the fixing ring are provided with a spring sheet with a certain elastic curvature. The spring sheet is installed at an angle, with one end of the spring sheet fixedly connected to the fixing ring and the other end of the spring sheet fixedly connected to the clamping plate.

[0009] As an improvement to the above solution, a protective pad is also included, wherein a soft sponge protective pad is fixedly connected to the side of the support frame facing the cable.

[0010] The beneficial effects are: the support frame slides elastically through spring A, adapting to the height difference caused by changes in cable diameter, ensuring that the center of the clamp is always aligned with the cable axis; the clamp rotates elastically through the coordinated action of spring B and spring plate, conforming to the curved surface of cables of different diameters; the anti-slip pad enhances friction; the rubber pad and protective pad reduce rigid contact wear; it can absorb external impacts such as vehicle vibration, preventing the cable from loosening or being damaged due to shaking, thus meeting the stable fixing requirements of OBC power cables under complex working conditions. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the support frame, limiting rod, and spring A of this utility model.

[0013] Figure 3 This is a schematic diagram of the structure of the anti-slip mat, rubber mat, and spring sheet of this utility model.

[0014] In the attached diagram, the following are the reference numerals: 1-fixed ring, 2-support frame, 3-limiting rod, 4-spring A, 5-clamping plate, 6-spring B, 7-anti-slip pad, 8-rubber pad, 9-spring sheet, 10-protective pad. Detailed Implementation

[0015] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0016] Example: An adaptive deformation OBC power cable fixing structure, such as Figure 1-3 As shown, the device includes a fixing ring 1, a support frame 2, a limiting rod 3, and a spring A4. There are two fixing rings 1, with bolt holes at corresponding positions. The OBC power cable is placed between the two fixing rings 1 and fixed by tightening bolts through the bolt holes. The tightness of the fixing can be adjusted. A square groove is formed in the middle of the fixing ring 1 facing the cable. A guide rail is provided on the inner wall of the square groove. The support frame 2 has sliders on both sides that cooperate with the guide rail, thereby realizing the sliding connection of the support frame 2 in the square groove. The limiting rod 3 is symmetrically fixedly connected to the top of the support frame 2. A through hole is formed in the fixing ring 1 for the limiting rod 3 to pass through. The limiting rod 3 is slidably connected to the through hole. The spring A4 is sleeved on the limiting rod 3. One end of the spring A4 is fixedly connected to the end of the limiting rod 3, and the other end of the spring A4 is fixedly connected to the support frame 2. The spring A4 can buffer and reset the sliding of the support frame 2. It also includes a clamping plate 5 and a spring B6. The clamping plate 5 is rotatably connected to both sides of the support frame 2 via a pin. The clamping plate 5 can rotate flexibly around the pin. The clamping plate 5 is arc-shaped and has the same curvature as the fixing ring 1 facing the cable side, so that it can fit the cable tightly. The spring B6 is provided between the front and rear sides of the clamping plate 5 and the support frame 2. One end of the spring B6 is fixedly connected to the support frame 2, and the other end of the spring B6 is fixedly connected to the clamping plate 5. When the cable size changes, the spring B6 can push the clamping plate 5 to rotate, so as to achieve adaptive clamping of the cable.

[0017] Place the OBC power cable between the two fixing rings 1, align the bolt holes, insert the bolts, and initially tighten them so that the fixing rings 1 lightly clamp the cable. The support frame 2 is embedded into the square groove of the fixing ring 1 by a slider, and the limiting rod 3 passes through the through hole of the fixing ring 1, ensuring that the spring A4 is naturally extended, and the support frame 2 is located at the initial position at the bottom of the square groove. The clamping plate 5 is connected to the support frame 2 by a pin, and the spring B6 is in a relaxed state, with the arc surface of the clamping plate 5 initially in contact with the cable. If the cable is thin, the clamping plate 5 rotates inward under the action of the spring B6; if it is thick, the clamping plate 5 rotates outward and compresses the spring B6. Tighten the bolts of the fixing ring 1, adjusting the clamping force according to the cable diameter. When the bolts are tightened, the rubber pad 8 on the inner side of the fixing ring 1 is in contact with the outer surface of the cable, providing basic fixing force. If the cable diameter is large, the support frame 2 slides upward under the pressure of the cable, the limiting rod 3 moves upward within the through hole of the fixing ring 1, and the spring A4 is compressed, pushing the support frame 2 tightly against the cable through elastic force. If the cable is thin, the spring A4 resets and pushes the support frame 2 downward, keeping the clamp 5 holding the cable. The clamp 5 rotates around the pin shaft as the cable diameter changes: when the cable is thick, the clamp 5 rotates outward to stretch the spring B6, and the spring plate 9 bends synchronously to provide a reverse elastic force; when the cable is thin, the spring B6 contracts to pull the clamp 5 inward to rotate, and the spring plate 9 assists in resetting, ensuring that the clamp 5 always fits against the cable surface, and the anti-slip pad 7 makes tight contact to prevent slippage. Loosen the bolt of the fixing ring 1 and remove the fixing ring 1 to disassemble the cable.

[0018] like Figure 1 and Figure 3 As shown, the system also includes anti-slip pads 7, each of the clamping plates 5 being provided with a wavy anti-slip pad 7 made of silicone material, which tightly conforms to the arc-shaped surface of the clamping plate 5. It also includes rubber pads 8, each of the two fixing rings 1 having a thickness of 5mm and high elasticity on its facing side. Furthermore, it includes spring pieces 9, each of the clamping plates 5 and the fixing ring 1 having a certain elastic arc, the spring pieces 9 being installed at an angle, one end of the spring piece 9 being fixedly connected to the fixing ring 1, and the other end of the spring piece 9 being fixedly connected to the clamping plate 5. Finally, it includes protective pads 10, each of the support frames 2 having a soft sponge protective pad 10 fixedly connected to the side facing the cable.

[0019] The anti-slip pad 7 fits tightly against the arc-shaped surface of the clamping plate 5, increasing friction with the cable surface and preventing cable slippage. The rubber pad 8 acts as a shock absorber when fixing the cable, reducing hard friction between the fixing ring 1 and the cable and protecting the cable sheath. The spring plate 9 works in conjunction with the spring B6 to provide additional elastic support when the clamping plate 5 holds the cable, enhancing clamping stability. The protective pad 10 prevents the support frame 2 from directly contacting the cable and causing wear, thus protecting the cable.

[0020] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. An adaptive deformation OBC power cable fixing structure, characterized in that, The device includes two fixing rings (1), each with a corresponding bolt hole. The OBC power cable is placed between the two fixing rings (1) and secured by bolts passing through the bolt holes. The tightness of the fixing can be adjusted. A square groove is provided in the middle of the fixing ring (1) facing the cable. A guide rail is provided on the inner wall of the square groove. Slider blocks that cooperate with the guide rail are provided on both sides of the support frame (2), thereby realizing the sliding connection of the support frame (2) in the square groove. Limiting rods (3) are symmetrically fixedly connected to the top of the support frame (2). A through hole is provided in the corresponding position of the fixing ring (1) for the limiting rod (3) to pass through. The limiting rod (3) is slidably connected to the through hole. A spring A (4) is sleeved on the limiting rod (3). One end of the spring A (4) is fixedly connected to the end of the limiting rod (3), and the other end of the spring A (4) is fixedly connected to the support frame (2). The spring A (4) can buffer and reset the sliding of the support frame (2).

2. The adaptive deformation OBC power cable fixing structure according to claim 1, characterized in that, It also includes clamping plates (5). The left and right sides of the support frame (2) are rotatably connected to clamping plates (5) via pins. The clamping plates (5) can rotate flexibly around the pins. Springs B (6) are provided between the front and rear sides of the clamping plates (5) and the support frame (2). One end of the springs B (6) is fixedly connected to the support frame (2), and the other end of the springs B (6) is fixedly connected to the clamping plates (5). When the cable size changes, the springs B (6) can push the clamping plates (5) to rotate.

3. The adaptive deformation OBC power cable fixing structure according to claim 2, characterized in that, It also includes anti-slip pads (7), and all the clamps (5) are provided with anti-slip pads (7).

4. The adaptive deformation OBC power cable fixing structure according to claim 3, characterized in that, It also includes rubber pads (8), with rubber pads (8) provided on the opposite side of the two fixing rings (1).

5. The adaptive deformation OBC power cable fixing structure according to claim 4, characterized in that, It also includes a spring sheet (9), and a spring sheet (9) is provided between each clamping plate (5) and the fixing ring (1). One end of the spring sheet (9) is fixedly connected to the fixing ring (1), and the other end of the spring sheet (9) is fixedly connected to the clamping plate (5).

6. The adaptive deformation OBC power cable fixing structure according to claim 5, characterized in that, It also includes protective pads (10), and the support frame (2) is fixedly connected to the side facing the cable with protective pads (10).

Images