Vibration-resistant vehicle-mounted wire harness

Abstract

The utility model relates to the technical field of vehicle-mounted wire harnesses, in particular to a vibration-resistant vehicle-mounted wire harness, which comprises a wire main body, and a rubber sheath is sleeved outside the wire main body. The electric wire comprises an electric wire main body, connectors and a plugging terminal, the connectors are located at the two ends of the electric wire main body respectively, each connector comprises a contact terminal and a positioning sleeve, the contact terminals are in threaded connection with the plugging terminal through fastening bolts, the positioning sleeves are fixedly arranged on the outer wall of the plugging terminal, and two rotating shafts are fixedly connected to the outer portions of the positioning sleeves. A first clamping plate and a second clamping plate are rotationally connected to the outer portion of each rotating shaft, and the first clamping plates and the second clamping plates are in butt joint to the outer portions of the fastening bolts. According to the utility model, through auxiliary traction of the first clamping plate and the second clamping plate, the fastening bolt is prevented from being vibrated and loosened, the plugging stability and firmness are greatly improved, and the situation that the fastening bolt cannot be used due to partial function failure caused by loosening and falling in the use process is avoided.

Description

Technical Field

[0001] This utility model relates to the field of vehicle wiring harness technology, specifically a vibration-resistant vehicle wiring harness. Background Technology

[0002] Vehicle wiring harnesses are the main network of automotive circuits. Without wiring harnesses, there would be no automotive circuits. A wiring harness is a component that connects circuits by crimping copper contact terminals to the main cable body, and then molding an insulator or adding an outer metal shell.

[0003] There are various connection methods for existing contact terminals. To ensure the stability of the connection, some types use a secondary bolt tightening method to achieve a tight connection of the contact terminals. However, the bolts are installed in a single direction. The vibration generated in the same direction during vehicle operation can cause the bolts connected in that direction to loosen, thereby affecting the stability of the connection. Utility Model Content

[0004] The purpose of this invention is to provide a vibration-resistant vehicle wiring harness to solve the problem mentioned in the background art that the bolts are installed in a single direction, and the vibration generated during vehicle operation will cause the bolts connected in that direction to loosen, thereby affecting the stability of the connection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vibration-resistant vehicle wiring harness, comprising:

[0006] The main body of the wire is covered with a rubber sheath.

[0007] The connector and the plug terminal are respectively located at both ends of the wire body. The connector includes a contact terminal and a positioning sleeve. The contact terminal is threadedly connected to the plug terminal by a fastening bolt. The outer wall of the hexagonal end of the fastening bolt is provided with a limit ring. The positioning sleeve is fixedly installed on the outer wall of the plug terminal. Two rotating shafts are fixedly connected to the outside of the positioning sleeve. A first clamping plate and a second clamping plate are rotatably connected to the outside of each rotating shaft. The first clamping plate and the second clamping plate are mated to the outside of the fastening bolt.

[0008] Preferably, the main body of the wire includes a power battery core, the outer wall of the power battery core is wrapped with a first insulation layer, the outer wall of the first insulation layer is wrapped with a shielding layer, the outer wall of the shielding layer is wrapped with a second insulation layer, the outer wall of the second insulation layer is wrapped with a nylon sheath, and the outer wall of the nylon sheath is wrapped with a rubber sheath.

[0009] Preferably, the first and second insulating layers are both made of polyvinyl chloride, and the shielding layer is made of tin-plated copper wire.

[0010] Preferably, the outer surface of the rubber sheath has a continuous concave-convex structure, and the depth of the concave structure is half the thickness of the rubber sheath.

[0011] Preferably, the diameter of the limiting ring is greater than the outer diameter of the fastening bolt, and the limiting ring abuts against the outer wall of the contact terminal. The first clamping plate and the second clamping plate are engaged between the limiting ring and the hexagonal end of the fastening bolt, and the thickness of the first clamping plate is equal to the distance from the limiting ring to the hexagonal end of the fastening bolt.

[0012] Preferably, the first card plate has a positioning hole at the end away from the rotating shaft, and the second card plate has a threaded hole at the end away from the rotating shaft, with a fastening screw passing through the positioning hole and extending into the threaded hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model improves the traditional bolt-fastened contact terminal by using a first and second clamping plate to assist in limiting the fastening bolt, preventing axial displacement of the fastening bolt. As a result, after the contact terminal is inserted and fastened, the fastening bolt is prevented from vibrating and loosening due to the auxiliary traction of the first and second clamping plates, greatly improving the stability and firmness of the insertion and preventing partial functional failure due to loosening and falling off during use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the exploded structure of the connector of this utility model;

[0016] Figure 3 For the present utility model Figure 2 A magnified structural diagram of A in the middle;

[0017] Figure 4 This is a schematic diagram of a partial exploded structure of the main body of the wire of this utility model.

[0018] In the diagram: 1. Main body of the wire; 11. Power cell; 12. First insulation layer; 13. Shielding layer; 14. Second insulation layer; 15. Nylon sheath; 2. Rubber sheath; 3. Connector; 31. Contact terminal; 32. Fastening bolt; 33. Limiting ring; 34. Positioning sleeve; 35. Rotating shaft; 36. First clamping plate; 37. Second clamping plate; 38. Fastening screw; 4. Plug-in terminal. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides an embodiment of a vibration-resistant vehicle wiring harness, comprising: a wire body 1, with a rubber sheath 2 covering the outside of the wire body 1; connectors 3 and plug terminals 4; connectors 3 being located at both ends of the wire body 1; and each connector 3 including a contact terminal 31 and a positioning sleeve 34; the contact terminal 31 being threadedly connected to the plug terminal 4 via a fastening bolt 32; and a limit ring 33 being provided on the outer wall of the hexagonal end of the fastening bolt 32; the positioning sleeve 34 being fixedly disposed on the outer wall of the plug terminal 4; and two rotating shafts 35 being fixedly connected to the outside of the positioning sleeve 34; each rotating shaft 35 being rotatably connected to a first clamping plate 36 and a second clamping plate 37. Furthermore, the first clamping plate 36 and the second clamping plate 37 are mated to the outside of the fastening bolt 32. Through the integrated structure of the positioning sleeve 34 and the plug-in terminal 4, after the contact terminal 31 is plugged into the plug-in terminal 4, the first clamping plate 36 and the second clamping plate 37 are rotated and locked to the outside of the fastening bolt 32. The first clamping plate 36 and the second clamping plate 37 are then fastened together by the fastening screw 38. This allows the first clamping plate 36 and the second clamping plate 37 to provide auxiliary axial limit for the fastening bolt 32, preventing the fastening bolt 32 from axial displacement due to vehicle vibration, etc., thereby improving the stability and firmness of the wire harness connection and effectively preventing it from falling off due to loosening during use.

[0021] Specifically, the diameter of the limiting ring 33 is larger than the outer diameter of the fastening bolt 32, and the limiting ring 33 abuts against the outer wall of the contact terminal 31. The first clamping plate 36 and the second clamping plate 37 are engaged between the limiting ring 33 and the hexagonal end of the fastening bolt 32, and the thickness of the first clamping plate 36 is equal to the distance between the limiting ring 33 and the hexagonal end of the fastening bolt 32. The end of the first clamping plate 36 away from the rotating shaft 35 is provided with a positioning hole, and the end of the second clamping plate 37 away from the rotating shaft 35 is provided with a threaded hole. The positioning hole is penetrated by a fastening screw 38 into the threaded hole. The fastening screw 38 is used for auxiliary positioning after the first clamping plate 36 and the second clamping plate 37 are engaged. In addition, the engagement of the first clamping plate 36 and the second clamping plate 37, together with the abutment and limiting of the limiting ring 33, plays a good role in limiting the axial movement of the fastening bolt 32, effectively preventing the fastening bolt 32 from axial displacement.

[0022] Furthermore, the main body of the wire 1 includes a power core 11, the outer wall of which is covered with a first insulation layer 12, the outer wall of which is covered with a shielding layer 13, the outer wall of which is covered with a second insulation layer 14, the outer wall of which is covered with a nylon sheath 15, and the outer wall of which is covered with a rubber sheath 2. The first insulation layer 12 and the second insulation layer 14 are both made of polyvinyl chloride, and the shielding layer 13 is made of tin-plated copper wire. The shielding layer 13 can play a certain electromagnetic shielding role, avoiding electromagnetic interference and influence on its signal transmission.

[0023] Specifically, the outer surface of the rubber sheath 2 has a continuous concave-convex structure, and the concave depth of the rubber sheath 2 is half the thickness of the rubber sheath 2. Through the continuous concave-convex structure on the outer surface of the rubber sheath 2, the wire body 1 has good bending resistance. Through the mutual abutment of its concave sides, its bending angle is limited, thereby playing a certain role in resisting bending and improving its safety in use.

[0024] Working principle: The wire body 1 and the plug terminal 4 used in this application are both products that can be purchased directly from the market. Their principles and connection methods are existing technologies known to those skilled in the art, so they will not be described in detail here. When using this utility model, the contact terminal 31 is first plugged into the plug terminal 4. Then, the first locking plate 36 and the second locking plate 37 on the outside of the plug terminal 4 are rotated so that the first locking plate 36 and the second locking plate 37 engage with the outside of the fastening bolt 32. Then, the first locking plate 36 and the second locking plate 37 are tightened and fixed by the fastening screw 38 so that the two complete the abutment and limit of the limiting ring 33 on the outer wall of the fastening bolt 32, thereby preventing the wire harness from axially displacing the fastening bolt 32 due to the same-direction vibration during the installation of the fastening bolt 32, thereby improving the firmness and stability of the connection.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A vibration-resistant vehicle wiring harness, characterized in that, include: The wire body (1) is covered with a rubber sheath (2). The connector (3) and the plug terminal (4) are respectively located at both ends of the wire body (1). The connector (3) includes a contact terminal (31) and a positioning sleeve (34). The contact terminal (31) is threadedly connected to the plug terminal (4) by a fastening bolt (32). A limit ring (33) is provided on the outer wall of the hexagonal end of the fastening bolt (32). The positioning sleeve (34) is fixedly installed on the outer wall of the plug terminal (4). Two rotating shafts (35) are fixedly connected to the outside of the positioning sleeve (34). A first clamping plate (36) and a second clamping plate (37) are rotatably connected to the outside of each rotating shaft (35). The first clamping plate (36) and the second clamping plate (37) are mated to the outside of the fastening bolt (32).

2. The vibration-resistant vehicle wiring harness according to claim 1, characterized in that: The diameter of the limiting ring (33) is greater than the outer diameter of the fastening bolt (32), and the limiting ring (33) abuts against the outer wall of the contact terminal (31). The first clamping plate (36) and the second clamping plate (37) are engaged between the limiting ring (33) and the hexagonal end of the fastening bolt (32), and the thickness of the first clamping plate (36) is equal to the distance between the limiting ring (33) and the hexagonal end of the fastening bolt (32).

3. The vibration-resistant vehicle wiring harness according to claim 2, characterized in that: The first card (36) has a positioning hole at the end away from the rotating shaft (35), and the second card (37) has a threaded hole at the end away from the rotating shaft (35), with a fastening screw (38) passing through the positioning hole to the inside of the threaded hole.

4. The vibration-resistant vehicle wiring harness according to claim 1, characterized in that: The main body of the wire (1) includes a power core (11), the outer wall of the power core (11) is wrapped with a first insulation layer (12), the outer wall of the first insulation layer (12) is wrapped with a shielding layer (13), the outer wall of the shielding layer (13) is wrapped with a second insulation layer (14), the outer wall of the second insulation layer (14) is wrapped with a nylon sheath (15), and the outer wall of the nylon sheath (15) is wrapped with a rubber sheath (2).

5. The vibration-resistant vehicle wiring harness according to claim 4, characterized in that: The first insulating layer (12) and the second insulating layer (14) are both made of polyvinyl chloride, and the shielding layer (13) is made of tin-plated copper wire.

6. The vibration-resistant vehicle wiring harness according to claim 4, characterized in that: The outer surface of the rubber sheath (2) has a continuous concave-convex structure, and the concave depth of the rubber sheath (2) is half the thickness of the rubber sheath (2).

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