Cold-resistant automobile wire harness

Abstract

The utility model belongs to the technical field of automobile wire harnesses, and particularly relates to a cold-resistant automobile wire harness, which comprises a wire harness body and further comprises a polyurethane layer fixedly arranged in the wire harness body, an aluminum oxide layer fixedly arranged in the polyurethane layer, a silicon nitride layer fixedly arranged in the aluminum oxide layer and a cold-resistant layer fixedly arranged in the silicon nitride layer. A polytetrafluoroethylene layer is fixedly arranged in the silicon nitride layer, the wire harness body can be protected by utilizing the effect of high stability of the polyurethane layer, and then the surface of the wire harness body is protected by utilizing the function of high abradability of the aluminum oxide layer, so that abrasion is prevented; and the service life of the silicon nitride layer is long, so that the surface of the wire harness body is wear-resistant, and the wire harness body is provided with a wear-resistant material, so that the wire harness body cannot be worn during mounting and dismounting, the electric leakage of the wire harness body cannot be caused, the danger of the wire harness body is reduced, and casualties and economic losses cannot be caused.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle wiring harnesses, in particular to a cold-resistant automobile wiring harness. Background Art

[0002] The wiring harness is the overall service equipment for a certain load source group, such as relay lines, switching devices, control systems. The basic research content of traffic theory is to study the relationship between traffic volume, call loss and wiring harness capacity. Therefore, the wiring harness is an important basic concept in traffic theory. The automotive wiring harness is the network body of the automotive circuit. Without the wiring harness, there would be no automotive circuit. The wiring harness refers to the contact terminal made of copper material, which is crimped with the wire and cable, and then the insulator is plastic-pressed on the outside or the metal shell is added to form a component connecting the circuit with the wiring harness.

[0003] For example, a Chinese patent with publication number CN217333693U discloses a cold-resistant automotive wiring harness, including: a cable core area, the cable core area includes an inner conductor, an inner insulating layer, and an inner cold-resistant layer, the inner conductor is arranged at an inner position of the cable core area, a plurality of inner conductors are arranged, the inner insulating layer is arranged at an outer position of the inner conductor, and the inner cold-resistant layer is arranged at an outer position of the inner insulating layer.

[0004] The above patent has the following problems:

[0005] Compared with the prior art, there is no wear-resistant material on the outside of the wiring harness, which may cause the surface of the wiring harness to wear during installation and disassembly, resulting in leakage of the wiring harness, increasing the danger of the wiring harness, and may cause casualties and economic losses. In addition, there are few cold-resistant materials in the prior art, which cannot fully protect the wiring harness. Long-term use may reduce the service life of the wiring harness and reduce the working efficiency of the wiring harness. In view of this, we propose a cold-resistant automotive wiring harness. Utility Model Content

[0006] The purpose of the utility model is to provide a cold-resistant automobile wiring harness in view of the above-mentioned technical problems, so as to achieve the effect of more cold-resistant materials and protecting the surface of the wiring harness.

[0007] In view of this, the utility model provides a cold-resistant automobile wiring harness, including a wiring harness body, and also including: a polyurethane layer is fixedly arranged inside the wiring harness body, an aluminum oxide layer is fixedly arranged inside the polyurethane layer, a silicon nitride layer is fixedly arranged inside the aluminum oxide layer, a polytetrafluoroethylene layer is fixedly arranged inside the silicon nitride layer, a polyimide layer is fixedly arranged inside the polytetrafluoroethylene layer, a polypropylene layer is fixedly arranged inside the polyimide layer, a polypropylene layer is fixedly arranged inside the polypropylene layer, a polycarbonate layer is fixedly arranged inside the polycarbonate layer, and an insulating layer is fixedly arranged inside the polycarbonate layer.

[0008] Based on the above structure, the wiring harness body is protected by the strong stability of the polyurethane layer, and the strong wear resistance of the aluminum oxide layer is used to protect the surface of the wiring harness body to prevent wear. Then, the long service life of the silicon nitride layer is used to make the surface of the wiring harness body wear-resistant. When used together, a wear-resistant material is set on the wiring harness body, and no wear will occur during installation and removal, and the wiring harness body will not leak electricity, thereby reducing the danger of the wiring harness body and causing no casualties and economic losses. The polytetrafluoroethylene layer has excellent chemical stability and the corrosion resistance of the polyimide layer is used to protect the wiring harness body. Then, the good cold resistance of the polypropylene layer and the polycarbonate layer is used to enhance the low temperature resistance of the wiring harness body. Then, the insulating layer can be used to shield the outside signal to ensure the normal operation of the wiring harness body. When used together, the cold-resistant material is highly resistant and can fully protect the wiring harness body. Long-term use increases the service life of the wiring harness and the working efficiency of the wiring harness body.

[0009] Preferably, a flame retardant layer is fixedly provided on the surface of the wiring harness body, and a sleeve is installed through the wiring harness body to prevent the wiring harness body from overheating.

[0010] Preferably, a protective layer is fixedly provided on the surface of the flame retardant layer, and the protective layer is made of copper material to protect the wiring harness body.

[0011] Preferably, limit plates are fixedly provided on both sides of the sleeve, and limit holes are fixedly provided inside the limit plates. A protective box is sleeved and installed on the surface of the sleeve to fix the wiring harness body.

[0012] Preferably, fixing bolts are installed through the interior of the protection box, through holes are fixedly provided on both sides of the protection box, and mounting plates are fixedly installed on both ends of the protection box to protect the wiring harness body when it is working.

[0013] Preferably, a positioning hole is fixedly provided inside the mounting plate, and a positioning bolt is installed penetrating inside the positioning hole to facilitate fixing of the protection box.

[0014] Preferably, a limiting ring is sleeved and installed on the surface of the protective layer, a placement hole is fixedly provided inside the limiting ring, and connecting bolts are installed through both ends of the limiting ring to facilitate the limiting of multiple wiring harness bodies.

[0015] The beneficial effects of the utility model are:

[0016] 1. The cold-resistant automotive wiring harness can utilize the strong stability of the polyurethane layer to protect the wiring harness body, and then utilize the strong wear resistance of the aluminum oxide layer to protect the surface of the wiring harness body to prevent wear. Then, the long service life of the silicon nitride layer is utilized to provide wear resistance to the surface of the wiring harness body. When used together, a wear-resistant material is provided on the wiring harness body, and no wear will occur during installation and removal, and the wiring harness body will not leak electricity, thereby reducing the danger of the wiring harness body and causing no casualties or economic losses.

[0017] 2. The cold-resistant automotive wiring harness can protect the wiring harness body by utilizing the excellent chemical stability of the polytetrafluoroethylene layer and the corrosion resistance of the polyimide layer, and then utilize the good cold resistance of the polypropylene layer and the polycarbonate layer to enhance the low-temperature resistance of the wiring harness body. Then, the insulating layer can be used to shield the external signal to ensure the normal operation of the wiring harness body. When used together, the cold-resistant material is highly resistant, which can fully protect the wiring harness body, increase the service life of the wiring harness over a long period of time, and increase the working efficiency of the wiring harness body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall three-dimensional diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the utility model;

[0020] Figure 3 It is a three-dimensional diagram of the local structure of the wiring harness body in the utility model;

[0021] Figure 4 This is a partial structural diagram of the polytetrafluoroethylene layer in the utility model.

[0022] The symbols in the figure are:

[0023] 1. Wire harness body; 101. Polyurethane layer; 102. Aluminum oxide layer; 103. Silicon nitride layer; 2. Polytetrafluoroethylene layer; 201. Polyimide layer; 202. Polypropylene layer; 203. Polycarbonate layer; 204. Insulation layer; 3. Flame retardant layer; 4. Protective layer; 5. Sleeve; 501. Limiting plate; 502. Limiting hole; 6. Protective box; 601. Fixing bolt; 602. Through hole; 7. Mounting plate; 701. Positioning hole; 702. Positioning bolt; 8. Limiting ring; 801. Placement hole; 802. Connecting bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The present application embodiment discloses a cold-resistant automotive wiring harness. Figure 1-Figure 4 , including a wiring harness body 1, and also including: a polyurethane layer 101 is fixedly arranged inside the wiring harness body 1, an aluminum oxide layer 102 is fixedly arranged inside the polyurethane layer 101, a silicon nitride layer 103 is fixedly arranged inside the aluminum oxide layer 102, a polytetrafluoroethylene layer 2 is fixedly arranged inside the silicon nitride layer 103, a polytetrafluoroethylene layer 2 is fixedly arranged inside the polytetrafluoroethylene layer 2, a polyimide layer 201 is fixedly arranged inside the polyimide layer 201, a polypropylene layer 202 is fixedly arranged inside the polypropylene layer 202, and an insulating layer 204 is fixedly arranged inside the polycarbonate layer 203.

[0026] Based on the above structure, the strong stability of the polyurethane layer 101 can be used to protect the wiring harness body 1, and the strong wear resistance of the aluminum oxide layer 102 can be used to protect the surface of the wiring harness body 1 to prevent wear. Then, the strong service life of the silicon nitride layer 103 is used to make the surface of the wiring harness body 1 wear-resistant. When used together, a wear-resistant material is set on the wiring harness body 1, and no wear will occur during installation and removal, and the wiring harness body 1 will not leak electricity, reducing the danger of the wiring harness body 1, and will not cause casualties and economic losses. Then, the polytetrafluoroethylene layer 2 has excellent chemical stability and the corrosion resistance of the polyimide layer 201 is used to protect the wiring harness body 1. Then, the good cold resistance of the polypropylene layer 202 and the polycarbonate layer 203 is used to enhance the low temperature resistance of the wiring harness body 1. Then, the insulating layer 204 can be used to shield the outside signal to ensure the normal operation of the wiring harness body 1. When used together, the cold-resistant material is high, which can fully protect the wiring harness body 1, and the long-term use increases the service life of the wiring harness and the working efficiency of the wiring harness body 1.

[0027] In one embodiment, a flame retardant layer 3 is fixedly disposed on the surface of the wiring harness body 1 , and a sleeve 5 is installed through the wiring harness body 1 .

[0028] Specifically, the flame retardant layer 3 can prevent the wire harness body 1 from being overheated.

[0029] In this embodiment, the flame retardant layer 3 ensures that the heat of the wiring harness body 1 will not be too high.

[0030] In one embodiment, a protective layer 4 is fixedly disposed on the surface of the flame retardant layer 3, and the protective layer 4 is made of copper.

[0031] Specifically, the copper material of the protective layer 4 can be used to enhance the strength of the wire harness body 1 .

[0032] In this embodiment, the protective layer 4 is made of copper, which can protect the wire harness body 1 when it is bent.

[0033] In one embodiment, both sides of the sleeve 5 are fixedly provided with limit plates 501 , the interior of the limit plates 501 is fixedly provided with limit holes 502 , and the surface of the sleeve 5 is sleeved and installed with a protective box 6 .

[0034] Specifically, the two wiring harness bodies 1 can be sleeved together using the sleeve 5 , and then the wiring harness bodies 1 can be fixed using the limiting plate 501 and the limiting hole 502 .

[0035] In this embodiment, the sleeve 5 can fix the wire harness body 1 to facilitate installation.

[0036] In one embodiment, fixing bolts 601 are installed through the interior of the protection box 6 , through holes 602 are fixedly provided on both sides of the protection box 6 , and mounting plates 7 are fixedly installed on both ends of the protection box 6 .

[0037] Specifically, the sleeve 5 can be protected by the protection box 6 , and then the protection box 6 can be fixed by the fixing bolt 601 , and then the through hole 602 can be used to ensure that the wire harness body 1 passes through.

[0038] In this embodiment, the protection box 6 can protect and limit the wiring harness body 1 .

[0039] In one embodiment, a positioning hole 701 is fixedly provided inside the mounting plate 7 , and a positioning bolt 702 is installed penetrating inside the positioning hole 701 .

[0040] Specifically, the protection box 6 can be limited by the mounting plate 7 , and then the protection box 6 can be fixed by the positioning hole 701 and the positioning bolt 702 .

[0041] In this embodiment, the positioning bolt 702 can fix the protection box 6 to facilitate the installation of the wiring harness body 1.

[0042] In one embodiment, a limiting ring 8 is sleeved and installed on the surface of the protective layer 4 , a placement hole 801 is fixedly provided inside the limiting ring 8 , and connecting bolts 802 are installed through both ends of the limiting ring 8 .

[0043] Specifically, the wire harness body 1 can be sleeved by using the limiting ring 8, and then the wire harness body 1 can be fixed by using the placement hole 801, and then the limiting ring 8 can be fixed by using the connecting bolt 802 to fix the wire harness body 1.

[0044] In this embodiment, the limiting ring 8 can also fix multiple wire harness bodies 1 to facilitate the installation of the wire harness bodies 1.

[0045] When the cold-resistant automobile wiring harness of this embodiment is in use, the two wiring harness bodies 1 can be sleeved together using the sleeve 5, and then the wiring harness body 1 can be fixed by using the limiting plate 501 in combination with the limiting hole 502, and then the sleeve 5 can be protected by the protection box 6, and then the protection box 6 can be fixed by using the fixing bolt 601, and then the through hole 602 can be used to ensure that the wiring harness body 1 is penetrated, and then the protection box 6 is limited by the mounting plate 7, and then the protection box 6 is fixed by using the positioning hole 701 in combination with the positioning bolt 702, and then the wiring harness body 1 is sleeved together using the limiting ring 8, and then the wiring harness body 1 is fixed by using the placement hole 801, and then the limiting ring 8 can be fixed by using the connecting bolt 802, and the wiring harness body 1 is fixed, and then the polyurethane layer 101 with strong stability is used. The wiring harness body 1 is protected by the effect, and the surface of the wiring harness body 1 is protected by the strong wear resistance of the aluminum oxide layer 102 to prevent wear. Then, the surface of the wiring harness body 1 is made wear-resistant by the strong service life of the silicon nitride layer 103. The wiring harness body 1 is protected by the excellent chemical stability of the polytetrafluoroethylene layer 2 and the corrosion resistance of the polyimide layer 201. Then, the low-temperature resistance of the wiring harness body 1 is enhanced by the good cold resistance of the polypropylene layer 202 and the polycarbonate layer 203. Then, the outside signal can be shielded by the insulating layer 204 to ensure the normal operation of the wiring harness body 1. The strength of the wiring harness body 1 is enhanced by the copper material of the protective layer 4. Then, the flame retardant layer 3 can prevent the wiring harness body 1 from being overheated.

[0046] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A cold-resistant automobile wiring harness, comprising a wiring harness body (1), characterized in that: Also includes: A polyurethane layer (101) is fixedly arranged inside the wiring harness body (1), an aluminum oxide layer (102) is fixedly arranged inside the polyurethane layer (101), a silicon nitride layer (103) is fixedly arranged inside the aluminum oxide layer (102), a polytetrafluoroethylene layer (2) is fixedly arranged inside the silicon nitride layer (103), a polytetrafluoroethylene layer (2) is fixedly arranged inside the polytetrafluoroethylene layer (2), a polyimide layer (201) is fixedly arranged inside the polyimide layer (201), a polypropylene layer (202) is fixedly arranged inside the polypropylene layer (202), a polycarbonate layer (203) is fixedly arranged inside the polycarbonate layer (203), and an insulating layer (204) is fixedly arranged inside the polycarbonate layer (203).

2. The cold-resistant automobile wiring harness according to claim 1, characterized in that: A flame retardant layer (3) is fixedly provided on the surface of the wiring harness body (1), and a sleeve (5) is installed through the wiring harness body (1).

3. The cold-resistant automobile wiring harness according to claim 2, characterized in that: A protective layer (4) is fixedly arranged on the surface of the flame retardant layer (3), and the protective layer (4) is made of copper.

4. The cold-resistant automobile wiring harness according to claim 2, characterized in that: Limiting plates (501) are fixedly arranged on both sides of the sleeve (5), limiting holes (502) are fixedly arranged inside the limiting plates (501), and a protective box (6) is sleeved and installed on the surface of the sleeve (5).

5. The cold-resistant automobile wiring harness according to claim 4, characterized in that: The interior of the protection box (6) is penetrated by fixing bolts (601), both sides of the protection box (6) are fixedly provided with through holes (602), and both ends of the protection box (6) are fixedly provided with mounting plates (7).

6. The cold-resistant automobile wiring harness according to claim 5, characterized in that: A positioning hole (701) is fixedly provided inside the mounting plate (7), and a positioning bolt (702) is installed through the inside of the positioning hole (701).

7. The cold-resistant automobile wiring harness according to claim 3, characterized in that: A limiting ring (8) is sleeved and installed on the surface of the protective layer (4), a placement hole (801) is fixedly provided inside the limiting ring (8), and connecting bolts (802) are installed through both ends of the limiting ring (8).

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