High temperature-resistant and pressure-resistant wire harness

Abstract

The utility model provides a high temperature and pressure resistant wire harness, which comprises an outer sleeve shell and a plurality of electric wires, the plurality of electric wires are arranged in the outer sleeve shell, a buffer filling layer and an elastic fiber layer are sequentially arranged between the outer sleeve shell and the plurality of wire harnesses from inside to outside, the top and the bottom of the outer sleeve shell are fixedly provided with arc-shaped convex blocks, and the arc-shaped convex blocks are connected with the elastic fiber layer. The outer sleeve shell is elliptical, an inner protection layer is fixed on the surfaces of the plurality of electric wires, and an outer pressure-resistant layer is fixedly arranged on the surface of the inner protection layer. According to the utility model, the outer sleeve shell of the wire harness is elliptical, the inner wire is effectively protected through the cooperation of the outer sleeve shell, the elastic fiber layer and the buffer filling layer, and the outer pressure-resistant layer and the inner protective layer are arranged on the surface of the wire, so that the wire has better high temperature resistance and pressure resistance, and the service life of the wire harness is prolonged. Therefore, the service life of the wire harness is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of wire harness technology and relates to a high temperature and pressure resistant wire harness. Background Technology

[0002] With the development of technology, more and more electronic products require wire harnesses for charging and discharging. During the charging process, the surface temperature of the wire harness is prone to rise. At the same time, the existing wire harnesses are generally circular in design, which can easily cause damage to the internal conductors under continuous pressure, thereby affecting the service life of the wire harness. To address these issues, we have designed a high temperature and pressure resistant wire harness to solve the above technical problems. Summary of the Invention

[0003] The purpose of this invention is to provide a high temperature and pressure resistant wire harness to solve the problems mentioned in the background art.

[0004] The objective of this utility model can be achieved through the following technical solution: a high temperature and pressure resistant wire harness, comprising an outer shell and multiple wires, wherein multiple wires are disposed inside the outer shell, and a buffer filling layer and an elastic fiber layer are disposed sequentially from the inside to the outside between the outer shell and the multiple wire harness, and arc-shaped protrusions are fixedly provided at the top and bottom of the outer shell, the outer shell is elliptical, an inner protective layer is fixedly provided on the surface of the multiple wires, and an outer pressure resistant layer is fixedly provided on the surface of the inner protective layer.

[0005] In the above-mentioned high temperature and voltage resistant wire harness, each of the multiple wires is composed of an outer insulation layer, a metal shielding layer, an inner insulation layer and multiple metal conductors. The surface of the multiple metal conductors is fixedly provided with an inner insulation layer, the surface of the inner insulation layer is fixedly provided with a metal shielding layer, and the surface of the metal shielding layer is fixedly provided with an outer insulation layer.

[0006] In the aforementioned high temperature and pressure resistant wire harness, both the outer insulation layer and the inner insulation layer are cross-linked polyethylene insulating rubber, and the metal shielding layer is aluminum foil.

[0007] In the above-mentioned high temperature and pressure resistant wire harness, the inner protective layer is fire-resistant mica tape, and the outer pressure-resistant layer is steel tape armor.

[0008] In the above-mentioned high temperature and pressure resistant wire harness, the buffer filling layer is buffer rubber, and the elastic fiber layer is polyurethane fiber.

[0009] In the aforementioned high temperature and pressure resistant wire harness, the outer shell and the arc-shaped protrusion are integrated, and both the outer shell and the arc-shaped protrusion are made of PE material.

[0010] Compared with the prior art, the advantages of the high temperature and pressure resistant wire harness of this utility model are as follows: the outer shell of the wire harness is set to an elliptical shape, and the cooperation of the outer shell, elastic fiber layer and buffer filling layer effectively protects the internal wires. At the same time, an outer pressure-resistant layer and an inner protective layer are set on the surface of the wires, so that the wires have better high temperature and pressure resistance, thereby improving the service life of the wire harness. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a high temperature and pressure resistant wire harness according to this utility model.

[0012] Figure 2 This is a schematic diagram of the end face structure of a high temperature and pressure resistant wire harness according to this utility model.

[0013] Figure 3 This utility model relates to a high-temperature and high-pressure resistant wire harness. Figure 1 Enlarged view of a portion of point A in the middle.

[0014] In the diagram, 1 is the outer shell; 2 is the elastic fiber layer; 3 is the buffer filling layer; 4 is the outer pressure-resistant layer; 5 is the inner protective layer; 6 is the wire; 7 is the outer insulation layer; 8 is the metal shielding layer; 9 is the inner insulation layer; 10 is the metal conductor; and 11 is the arc-shaped protrusion. Detailed Implementation

[0015] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0016] like Figure 1-3 As shown, this utility model discloses a high temperature and pressure resistant wire harness, including an outer shell 1 and multiple wires 6. Multiple wires 6 are arranged inside the outer shell 1. A buffer filling layer 3 and an elastic fiber layer 2 are arranged sequentially from the inside to the outside between the outer shell 1 and the multiple wire harness. Arc-shaped protrusions 11 are fixedly provided at the top and bottom of the outer shell 1. The outer shell 1 is elliptical. An inner protective layer 5 is fixedly provided on the surface of the multiple wires 6. An outer pressure-resistant layer 4 is fixedly provided on the surface of the inner protective layer 5.

[0017] Specifically, the outer shell 1 of the wire harness is set in an elliptical shape, and the outer shell 1, elastic fiber layer 2 and buffer filling layer 3 work together to effectively protect the internal wires 6. At the same time, an outer pressure-resistant layer 4 and an inner protective layer 5 are set on the surface of the wires 6, so that the wires 6 have good high temperature resistance and pressure resistance, thereby improving the service life of the wire harness.

[0018] like Figure 1 , Figure 2 and Figure 3As shown, this utility model discloses a high temperature and pressure resistant wire harness, in which multiple wires 6 are each composed of an outer insulation layer 7, a metal shielding layer 8, an inner insulation layer 9, and multiple metal conductor cores 10. The inner insulation layer 9 is fixedly provided on the surface of the multiple metal conductor cores 10, the metal shielding layer 8 is fixedly provided on the surface of the inner insulation layer 9, and the outer insulation layer 7 is fixedly provided on the surface of the metal shielding layer 8.

[0019] Both the outer insulation layer 7 and the inner insulation layer 9 are cross-linked polyethylene insulating rubber, and the metal shielding layer 8 is metal aluminum foil.

[0020] The inner protective layer 5 is a fire-resistant mica tape, and the outer compressive layer 4 is a steel belt armor.

[0021] The buffer filling layer 3 is buffer rubber, and the elastic fiber layer 2 is polyurethane fiber.

[0022] Specifically, the pressure resistance of the wire harness is further improved by using the buffer filler layer 3.

[0023] The outer shell 1 and the arc-shaped protrusion 11 are integrated into one piece, and both the outer shell 1 and the arc-shaped protrusion 11 are made of PE material.

[0024] Specifically, the outer shell 1 is made into an elliptical shape by setting the arc-shaped protrusion 11.

[0025] In specific implementation, when producing high-temperature and high-pressure resistant wire harnesses, firstly, an inner protective layer 5 and an outer pressure-resistant layer 4 are sequentially wrapped around the surface of multiple formed wires 6 through hot extrusion and winding. Then, the multiple wires 6 are arranged horizontally, and a buffer filling layer 3, an elastic fiber layer 2, and an outer shell 1 are wrapped around the surface of the multiple wires 6 through hot extrusion. The outer shell 1 of the formed wire harness is set in an elliptical shape, and the cooperation of the outer shell 1, the elastic fiber layer 2, and the buffer filling layer 3 effectively protects the internal wires 6. At the same time, the outer pressure-resistant layer 4 and the inner protective layer 5 are set on the surface of the wires 6, so that the wires 6 have good high-temperature and pressure resistance, thereby improving the service life of the wire harness.

[0026] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A high-temperature and high-voltage resistant wire harness, comprising an outer casing (1) and multiple wires (6), wherein the outer casing (1) contains multiple wires (6), characterized in that, The outer shell (1) and the multiple wire harnesses are provided with a buffer filling layer (3) and an elastic fiber layer (2) from the inside to the outside. The top and bottom of the outer shell (1) are fixed with arc-shaped protrusions (11). The outer shell (1) is elliptical. The surface of the multiple wires (6) is fixed with an inner protective layer (5). The surface of the inner protective layer (5) is fixed with an outer pressure-resistant layer (4).

2. The high temperature and pressure resistant wire harness according to claim 1, wherein, Each of the multiple wires (6) consists of an outer insulation layer (7), a metal shielding layer (8), an inner insulation layer (9), and multiple metal conductors (10). The surface of the multiple metal conductors (10) is fixedly provided with an inner insulation layer (9), the surface of the inner insulation layer (9) is fixedly provided with a metal shielding layer (8), and the surface of the metal shielding layer (8) is fixedly provided with an outer insulation layer (7).

3. The high temperature and pressure resistant wire harness according to claim 2, wherein, The outer insulation layer (7) and the inner insulation layer (9) are both cross-linked polyethylene insulating rubber, and the metal shielding layer (8) is metal aluminum foil.

4. The high temperature and pressure resistant wire harness according to claim 2, wherein, The inner protective layer (5) is a fire-resistant mica tape, and the outer pressure-resistant layer (4) is a steel belt armor.

5. The high temperature and pressure resistant wire harness of claim 1, wherein, The buffer filling layer (3) is buffer rubber, and the elastic fiber layer (2) is polyurethane fiber.

6. The high temperature and pressure resistant wire harness of claim 1, wherein, The outer shell (1) and the arc-shaped protrusion (11) are integrated into one piece, and both the outer shell (1) and the arc-shaped protrusion (11) are made of PE material.

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