Bending-resistant vehicle-mounted wire harness

Abstract

The utility model relates to the technical field of vehicle-mounted wire harnesses, in particular to a bending-resistant vehicle-mounted wire harness, which comprises a wire cable, and two ends of the wire cable are electrically connected with contact terminals. The protective sleeve wraps the electric wire and cable, a mounting hole is formed in the position, corresponding to the electric wire and cable, of the protective sleeve, the inner wall of the mounting hole is fixedly connected with an aluminum foil sheath, the aluminum foil sheath wraps the outer portion of the electric wire and cable, a ventilation groove is formed in the center of the protective sleeve, and ventilation holes are evenly formed in the horizontal center line of the ventilation groove. According to the utility model, the integrated protective sleeve is additionally arranged outside a plurality of electric wires and cables, the protective effect on the electric wires and cables can be improved and the anti-bending performance of the electric wires and cables can be effectively improved through the excellent and beneficial performance of the material of the protective sleeve, and the bending resistance of the electric wires and cables can be effectively improved through the integrated structure under the condition that the bending angle of the electric wires and cables is limited. The protection performance of internal wires and cables can be improved, and excessive bending of the internal wires and cables is avoided.

Description

Technical Field

[0001] This utility model relates to the field of vehicle wiring harness technology, specifically a bend-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 with wires and cables, and then molding an insulator or adding an outer metal shell.

[0003] The existing wire and cable harnesses have a relatively simple structure, and they can be bent and laid at will during use. As a result, they are prone to deformation due to excessive bending or external compression during use. In severe cases, the internal structure of the cable is damaged, affecting its electrical performance and mechanical strength, while also reducing its service life and increasing its operating costs. Utility Model Content

[0004] The purpose of this utility model is to provide a bend-resistant vehicle wiring harness to solve the problems mentioned in the background art, such as excessive bending or external compression, which leads to deformation of wires and cables, and in severe cases, damage to the internal structure of the cable, affecting its electrical performance and mechanical strength, while also reducing its service life and increasing its usage cost.

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

[0006] The wire and cable, both ends of which are electrically connected to contact terminals;

[0007] A protective sleeve is provided, which is wrapped around the outside of the wire and cable. The protective sleeve has an installation hole corresponding to the wire and cable. An aluminum foil sheath is fixedly connected to the inner wall of the installation hole, and the aluminum foil sheath is wrapped around the outside of the wire and cable. A ventilation groove is provided in the center of the protective sleeve, and ventilation holes are evenly provided on the horizontal center line of the ventilation groove.

[0008] Preferably, the end of the contact terminal closest to the wire or cable has a concave structure, and the inner diameter of the concave structure is equal to the outer diameter of the protective sleeve.

[0009] Preferably, the length of the protective sleeve is not less than the straight-line distance between the two contact terminals on their closest sides, and the length of the protective sleeve is less than the length of the wire and cable.

[0010] Preferably, the protective sleeve is made of rubber, and the rubber material may be cross-linked polyethylene.

[0011] Preferably, the outer wall of the protective sleeve is provided with heat dissipation grooves, and the arc of the heat dissipation grooves is distributed on the same axis as the corresponding mounting holes, and the heat dissipation grooves are distributed between adjacent mounting holes.

[0012] Preferably, the ventilation groove and ventilation hole are in a through structure, and the ventilation hole is distributed through the center line of the protective sleeve, and the distance between adjacent ventilation holes is no more than five centimeters. The ventilation groove is located at the intersection center of the four mounting holes and has a ring structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By adding an integrated protective sleeve to the outside of multiple wires and cables, the superior performance of the protective sleeve material can improve the protection effect of the wires and cables, effectively improving their bending resistance. At the same time, the integrated structure can improve the protection performance of the internal wires and cables even when the bending angle is limited, avoiding excessive bending. Furthermore, the opening of the ventilation groove in the center of the protective sleeve gives it a certain pressure-resistant buffering performance, thereby providing a good buffering protection effect when subjected to external impact, further improving the safety of the wires and cables and extending their service life. 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 partial cross-sectional view of the present invention.

[0016] Figure 3 This is a schematic diagram of the partial aluminum foil sheath explosion structure of this utility model;

[0017] Figure 4 This is a front view structural diagram of the protective sleeve cross-section of this utility model.

[0018] In the diagram: 1. Wire and cable; 2. Contact terminal; 3. Protective sleeve; 31. Ventilation groove; 32. Ventilation hole; 33. Heat dissipation groove; 34. Mounting hole; 4. Aluminum foil sheath. 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 1-4This utility model provides an embodiment of a bend-resistant vehicle wiring harness, comprising a wire and cable 1, both ends of which are electrically connected to contact terminals 2; a protective sleeve 3 is wrapped around the outside of the wire and cable 1, and the protective sleeve 3 has mounting holes 34 corresponding to the wire and cable 1, the inner wall of the mounting holes 34 is fixedly connected to an aluminum foil sheath 4, and the aluminum foil sheath 4 is wrapped around the outside of the wire and cable 1, the protective sleeve 3 has a vent groove 31 in the center, and vent holes 32 are evenly distributed along the horizontal center line of the vent groove 31. Through the cooperation of the protective sleeve 3 and the aluminum foil sheath 4, the protective performance of the wire and cable 1 can be improved, and the bending resistance of the wire and cable 1 can be improved. The aluminum foil sheath 4 is made of high-quality heat insulation material, which can effectively isolate heat sources in high-temperature environments, further improving the overall heat insulation performance of the wire and cable 1, avoiding the absorption of high temperature leading to a reduction in its service life, and improving its efficiency in use inside the engine compartment. Aluminum foil possesses excellent shielding properties, effectively shielding against electromagnetic interference. This shielding function is based on its good electrical conductivity. When external electromagnetic fields or strong electrical signals interact with electronic devices or equipment, interference can occur, affecting signal transmission and the normal operation of the equipment. This application, through the installation of the aluminum foil sheath 4, forms an electromagnetic shielding system, isolating external electromagnetic fields or strong electrical signals outside the shielding system and preventing them from interfering with the internal system.

[0021] Specifically, the protective sleeve 3 is made of rubber, which can be cross-linked polyethylene. Cross-linked polyethylene forms a three-dimensional network structure during the cross-linking process, which has higher strength and rigidity, can withstand greater pressure and tension, and has good acid and alkali resistance and corrosion resistance, and can be used for a long time in harsh environments.

[0022] Furthermore, the outer wall of the protective sleeve 3 is provided with heat dissipation grooves 33, and the arc of the heat dissipation grooves 33 is distributed on the same axis as the corresponding mounting holes 34. The heat dissipation grooves 33 are distributed between adjacent mounting holes 34. By opening the heat dissipation grooves 33, the contact area between the outside of the protective sleeve 3 and the air can be increased, thereby improving its heat dissipation performance.

[0023] Specifically, the ventilation groove 31 and the ventilation hole 32 are in a continuous structure, and the ventilation hole 32 is distributed throughout the center line of the protective sleeve 3, with the distance between adjacent ventilation holes 32 not exceeding five centimeters. The ventilation groove 31 is located at the intersection center of the four mounting holes 34 in a ring structure. Through the cooperation of the ventilation groove 31 and the ventilation hole 32, the ventilation performance inside the protective sleeve 3 can be improved, thereby improving its heat dissipation performance. In addition, the hollow structure makes the protective sleeve 3 have a certain pressure-resistant buffering effect, further improving its safety protection performance for the wires and cables 1 during use.

[0024] Furthermore, the end of the contact terminal 2 closest to the wire / cable 1 has a concave structure, and the inner diameter of the concave structure is equal to the outer diameter of the protective sleeve 3. The length of the protective sleeve 3 is not less than the straight-line distance between the two contact terminals 2 on the side closest to each other, and the length of the protective sleeve 3 is less than the length of the wire / cable 1. By setting the length of the protective sleeve 3, both ends of the protective sleeve 3 can be inserted into the concave structure of the contact terminal 2 respectively, ensuring the safety protection of the wire / cable 1, while the end compression protection provides good positioning for the protective sleeve 3.

[0025] Working principle: The wire and cable 1 and the contact terminal 2 used in this application are 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, firstly, during installation, a protective sleeve 3 is placed on the outside of the wire and cable 1, which provides good protection for the wire and cable 1. Furthermore, the opening of the ventilation groove in the center of the protective sleeve 3 gives it a certain pressure-resistant buffering performance, thereby enabling it to play a good buffering and protective role when subjected to external impact, further improving the safety of the wire and cable and extending its service life.

[0026] 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 bend-resistant vehicle wiring harness, characterized in that, include: The wire and cable (1) has contact terminals (2) electrically connected to both ends of the wire and cable (1). A protective sleeve (3) is wrapped around the outside of the wire and cable (1), and the protective sleeve (3) has an installation hole (34) corresponding to the wire and cable (1). An aluminum foil sheath (4) is fixedly connected to the inner wall of the installation hole (34), and the aluminum foil sheath (4) is wrapped around the outside of the wire and cable (1). A ventilation groove (31) is opened in the center of the protective sleeve (3), and ventilation holes (32) are evenly opened on the horizontal center line of the ventilation groove (31).

2. The bend-resistant vehicle wiring harness according to claim 1, characterized in that: The outer wall of the protective sleeve (3) is provided with heat dissipation grooves (33), and the arc of the heat dissipation grooves (33) and the corresponding mounting holes (34) are distributed on the same axis. The heat dissipation grooves (33) are distributed between adjacent mounting holes (34).

3. The bend-resistant vehicle wiring harness according to claim 2, characterized in that: The ventilation groove (31) and ventilation hole (32) are in a through structure, and the ventilation hole (32) is distributed through the center line of the protective sleeve (3), and the distance between adjacent ventilation holes (32) is no more than five centimeters. The ventilation groove (31) is located at the intersection center of the four mounting holes (34) and has a ring structure.

4. The bend-resistant vehicle wiring harness according to claim 1, characterized in that: The contact terminal (2) has a concave structure at one end near the wire and cable (1), and the inner diameter of the concave structure is equal to the outer diameter of the protective sleeve (3).

5. The bend-resistant vehicle wiring harness according to claim 1, characterized in that: The length of the protective sleeve (3) is not less than the straight-line distance between the two contact terminals (2) on the side closest to each other, and the length of the protective sleeve (3) is less than the length of the wire and cable (1).

6. The bend-resistant vehicle wiring harness according to claim 1, characterized in that: The protective sleeve (3) is made of rubber, and the rubber material can be cross-linked polyethylene.

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