Multi-layer wire harness structure

Abstract

The utility model discloses a multilayer wire harness structure, which comprises an inner layer, a middle layer, a waterproof layer and an outer protective layer which are sequentially adjacent and sleeved from inside to outside, the inner layer further comprises a main wire pipe, a plurality of auxiliary wire pipes are arranged on the circumference of the outer side of the main wire pipe in an array mode, the auxiliary wire pipes are sequentially connected, and supporting ribs are embedded in the main wire pipe; wire cores are embedded in the plurality of auxiliary wire tubes. The multi-layer wire harness structure comprises a plurality of auxiliary wire pipes, the outer sides of the auxiliary wire pipes are wrapped with middle layers, gaps are reserved between the middle layers and the auxiliary wire pipes, the gaps between the middle layers and the auxiliary wire pipes are filled with filling layers, and the multi-layer wire harness structure integrates various protection capabilities, is more wear-resistant, longer in service life and better in waterproof capability.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical harness equipment, in particular to a multi-layer harness structure. Background Art

[0002] In many fields such as modern electrical equipment and automobiles, the wiring harness is an important component for transmitting signals or power. Its design structure, safety performance and durability directly affect the operation effect of the entire system. When the wiring harness is applied and set in the internal structure of the car, the car often encounters various emergencies such as wading and bumps during driving. The traditional wiring harness structure design is usually relatively simple and difficult to meet the use requirements in complex environments. There are certain limitations in terms of waterproofing, pressure resistance, electromagnetic interference resistance, heat dissipation and overall structural stability. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a multi-layer wiring harness structure which integrates multiple protection capabilities and is more wear-resistant, has a longer service life, and has better waterproof ability.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a multi-layer structure wire harness, including an inner layer, an intermediate layer, a waterproof layer and an outer protective layer which are adjacent to and sleeved in sequence from the inside to the outside, the inner layer also includes a main wire tube, a plurality of auxiliary wire tubes are arranged in a circular array outside the main wire tube, and the plurality of auxiliary wire tubes are connected in sequence, the main wire tube is embedded with supporting ribs; a plurality of auxiliary wire tubes are embedded with wire cores; an intermediate layer is wrapped around the outer side of the plurality of auxiliary wire tubes, a gap is left between the intermediate layer and the auxiliary wire tube, and the gap between the intermediate layer and the auxiliary wire tube is filled with a filling layer.

[0005] Preferably, the main line pipe and the plurality of auxiliary line pipes are an integrally formed structure, and both the main line pipe and the auxiliary line pipes are cylindrical cavity structures with hollow interiors.

[0006] Preferably, the supporting ribs are composed of a plurality of light metal wires which are continuously wound.

[0007] Preferably, the filling layer is a waterproof sealant, and the filling layer is filled in the gap between each secondary line tube and the gap between the secondary line tube and the middle layer.

[0008] Preferably, the middle layer is formed by a metal woven mesh and includes an electromagnetic shielding layer arranged outside the middle layer.

[0009] Preferably, the waterproof layer is a corrugated tube structure.

[0010] Preferably, the outer protective layer is a sheath structure made of TPE material and continuously wrapped around the outside of the waterproof layer.

[0011] The beneficial effects of the utility model are:

[0012] 1. The main line tube and multiple auxiliary line tubes adopt an integrated molding structure to form a cylindrical cavity structure, which not only simplifies the manufacturing process, but also makes the internal structure of the wiring harness more compact, which is conducive to saving space and reducing weight. At the same time, the main line tube and the auxiliary line tube are set to separate multiple wire cores and set independent wire cavities to prevent static electricity and wear caused by friction between the wire harnesses during work, thereby improving the service life.

[0013] 2. The supporting ribs embedded in the main line tube are composed of multiple continuously wound light metal wires, which effectively improves the overall strength and compression resistance of the wire harness, ensuring that the wire harness is not easily deformed or damaged in complex environments.

[0014] 3. Waterproof sealant is used to fill the gaps between the auxiliary line tubes and between the auxiliary line tubes and the middle layer to form an effective waterproof sealing layer, which can effectively prevent moisture intrusion and protect the internal wire core and circuit from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the intermediate layer structure of the utility model;

[0017] Figure 3 It is a cross-sectional structural diagram of the utility model.

[0018] Notes in the figure

[0019] 1. Main line pipe; 101. Support ribs; 2. Auxiliary line pipe; 201. Wire core; 3. Filling layer; 4. Middle layer; 5. Waterproof layer; 6. Outer protective layer. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] Combination Figure 1-3The utility model discloses a multi-layer structure wire harness, comprising an inner layer, an intermediate layer 4, a waterproof layer 5 and an outer protective layer 6 which are adjacent to and sleeved in sequence from the inside to the outside, the inner layer also comprising a main line tube 1, a plurality of secondary line tubes 2 are arranged in a circular array on the outer side of the main line tube 1, the plurality of secondary line tubes 2 are connected in sequence, the main line tube 1 is embedded with a supporting rib 101; a plurality of secondary line tubes 2 are embedded with a wire core 201; a plurality of secondary line tubes 2 are wrapped with an intermediate layer 4 on the outer side, a gap is left between the intermediate layer 4 and the secondary line tubes 2, and a filling layer 3 is filled in the gap between the intermediate layer 4 and the secondary line tubes 2.

[0022] Furthermore, the main line pipe 1 and the plurality of auxiliary line pipes 2 are an integrally formed structure, and both the main line pipe 1 and the auxiliary line pipes 2 are cylindrical cavity structures with hollow interiors.

[0023] Furthermore, the support ribs 101 are composed of a plurality of light metal wires that are continuously wound.

[0024] Furthermore, the filling layer 3 is a waterproof sealant, and the filling layer 3 is filled in the gap between each secondary line tube 2 and the gap between the secondary line tube 2 and the middle layer 4 .

[0025] Furthermore, the middle layer 4 is formed by a metal woven mesh and includes an electromagnetic shielding layer arranged outside the middle layer 4 .

[0026] Furthermore, the waterproof layer 5 is a corrugated tube structure.

[0027] Furthermore, the outer protective layer 6 is a sheath structure made of TPE material and continuously wrapped around the outer side of the waterproof layer 5 .

[0028] The utility model adopts an integrally formed structure of a main line tube 1 and multiple sub-line tubes 2 to form a cylindrical cavity structure, which not only simplifies the manufacturing process, but also makes the internal structure of the wiring harness more compact, which is beneficial to saving space and reducing weight. At the same time, the main line tube 1 and the sub-line tube 2 are arranged to separate multiple wire cores 201 and set independent wire cavities, so as to prevent static electricity and wear caused by friction between the wire harnesses during operation, thereby improving the service life. The supporting ribs 101 embedded in the main line tube 1 are composed of multiple continuously wound light metal wires, which effectively improves the overall strength and compression resistance of the wire harness and ensures that the wire harness is not easily deformed and damaged in complex environments. Waterproof sealant is used to fill the gaps between the sub-line tubes 2 and between the sub-line tubes 2 and the middle layer 4, so as to form an effective waterproof sealing layer, which can effectively prevent moisture intrusion and protect the internal wire cores 201 and circuits from damage.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multi-layer wire harness structure, comprising an inner layer, an intermediate layer (4), a waterproof layer (5) and an outer protective layer (6) which are adjacent and sleeved from the inside to the outside, characterized in that: The inner layer also includes a main line tube (1), a plurality of secondary line tubes (2) are arranged in a circular array outside the main line tube (1), and the plurality of secondary line tubes (2) are connected in sequence. The main line tube (1) is embedded with a support rib (101); the plurality of secondary line tubes (2) are all embedded with a wire core (201); an intermediate layer (4) is wrapped around the outer side of the plurality of secondary line tubes (2), a gap is left between the intermediate layer (4) and the secondary line tubes (2), and the gap between the intermediate layer (4) and the secondary line tubes (2) is filled with a filling layer (3).

2. A multi-layer wire harness structure according to claim 1, characterized in that: The main line pipe (1) and the plurality of auxiliary line pipes (2) are an integrally formed structure, and both the main line pipe (1) and the auxiliary line pipes (2) are cylindrical cavity structures with hollow interiors.

3. A multi-layer wire harness structure according to claim 1, characterized in that: The supporting ribs (101) are composed of a plurality of light metal wires which are continuously wound.

4. A multi-layer wire harness structure according to claim 1, characterized in that: The filling layer (3) is a waterproof sealant, and the filling layer (3) is filled in the gap between each auxiliary line tube (2) and in the gap between the auxiliary line tube (2) and the middle layer (4).

5. A multi-layer wire harness structure according to claim 1, characterized in that: The middle layer (4) is formed by a metal braided mesh and comprises an electromagnetic shielding layer arranged outside the middle layer (4).

6. A multi-layer wire harness structure according to claim 1, characterized in that: The waterproof layer (5) is a corrugated tube structure.

7. A multi-layer wire harness structure according to claim 1, characterized in that: The outer protective layer (6) is a sheath structure made of TPE material and continuously wrapped around the outer side of the waterproof layer (5).

Images