Three-layer wire harness sleeve

Abstract

The utility model provides a three-layer wire harness bushing, the three-layer wire harness bushing comprises a first layer, a second layer and a third layer from inside to outside, the first layer and the third layer are made of wear-resistant materials, and the second layer is made of conductive materials. According to the three-layer wire harness sleeve in the embodiment, the first layer and the third layer are made of wear-resistant materials, the second layer is arranged between the first layer and the third layer, and the second layer is made of conductive materials. Therefore, after the cable is wrapped by the second layer, an electromagnetic shielding effect can be achieved. The first layer and the third layer prevent the second layer from leaking or being worn off. By implementing the three-layer wire harness sleeve provided by the utility model, the purpose of the wire harness sleeve which has electromagnetic shielding and wear resistance can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a three-layer wire harness sleeve. Background Technology

[0002] In new energy vehicles, high-voltage wiring harnesses are cables used to transmit electrical energy. They are typically used to connect battery packs, electric drive systems, and other high-voltage equipment. Due to the special nature of high-voltage electricity, when current flows through the cable, it creates a magnetic field surrounding the cable. This electromagnetic interference from high-voltage wiring harnesses can negatively impact the performance and safety of new energy vehicles. The electromagnetic radiation from high-voltage wiring harnesses may interfere with internal vehicle communication systems, such as radio communication and Bluetooth connections, leading to decreased communication quality or loss of connection. In these cases, these magnetic fields may also interfere with nearby electronic equipment, communication systems, and other sensitive devices, affecting their performance. Therefore, when designing and arranging high-voltage cables, appropriate shielding and interference control measures are required to protect the conduit and ensure electromagnetic compatibility and normal equipment operation. Traditional shielding conduits on the market use exposed shielding layers. When the metal wires in the shielding layer break, the sharp edges can pierce the wiring harness, causing it to rupture and resulting in a short circuit in the vehicle's wiring, leading to incalculable losses. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a three-layer wire harness sleeve to achieve the purpose of a wire harness sleeve that can provide electromagnetic shielding and has wear resistance.

[0004] Therefore, one embodiment provides a three-layer wire harness sleeve, including a first layer, a second layer and a third layer from the inside out, wherein the first layer and the third layer are made of wear-resistant material, and the second layer is made of conductive material.

[0005] As a further alternative to the three-layer wire harness sleeve, the sleeve has a self-winding opening.

[0006] As a further alternative to the three-layer wire harness sleeve, the second layer is formed by weaving.

[0007] As a further alternative to the three-layer wire harness sleeve, the first and third layers are also formed by weaving.

[0008] As a further alternative to the three-layer wire harness sleeve, the first and third layers are woven from polymer fibers.

[0009] As a further alternative to the three-layer wire harness sleeve, the polymer fibers include aramid, glass fiber, chopped carbon fiber, PTFE, etc.

[0010] As a further alternative to the three-layer wire harness sleeve, the polymer fiber is composed of a single or multiple composite fibers.

[0011] As a further optional solution for the three-layer wire harness sleeve, the conductive material includes tin-plated copper wire, copper foil wire, stainless steel wire, conductive fiber, etc.

[0012] As a further alternative to the three-layer wire harness sleeve, the sleeve is integrally formed by textile fabrication of the first layer, the second layer, and the third layer.

[0013] As a further alternative to the three-layer wire harness sleeve, the warp and weft density of the third layer is higher than that of the first layer.

[0014] Implementing the embodiments of this utility model will have the following beneficial effects:

[0015] According to the three-layer wire harness sleeve in the above embodiments, the first and third layers are made of wear-resistant material, and the second layer is disposed between the first and third layers and is made of conductive material. Therefore, the second layer, after wrapping the cable, can provide electromagnetic shielding. The first and third layers prevent the second layer from leaking out or being worn through. Implementing the three-layer wire harness sleeve of this invention achieves the purpose of providing both electromagnetic shielding and wear-resistant wire harness sleeve. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] in:

[0018] Figure 1 A schematic cross-sectional view of a three-layer wire harness sleeve provided according to an embodiment of the present invention is shown.

[0019] Figure 2 A schematic diagram of the vertical cross-sectional structure of a three-layer wire harness sleeve provided according to an embodiment of the present invention is shown.

[0020] Explanation of key component symbols:

[0021] First layer -10; Second layer -20; Third layer -30. Detailed Implementation

[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0023] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] This utility model embodiment provides a three-layer wire harness sleeve, please refer to... Figure 1 and Figure 2 The three-layer wire harness sleeve includes a first layer 10, a second layer 20, and a third layer 30 from the inside out. The first layer 10 and the third layer 30 are made of wear-resistant materials, and the second layer 20 is made of conductive materials.

[0026] According to the three-layer wire harness sleeve in the above embodiments, the first layer 10 and the third layer 30 are made of wear-resistant material, and the second layer 20 is disposed between the first layer 10 and the third layer 30, and the second layer 20 is made of conductive material. Therefore, the second layer 20, after wrapping the cable, can play a role in electromagnetic shielding. The first layer 10 and the third layer 30 prevent the second layer 20 from leaking out or being worn through. Implementing the three-layer wire harness sleeve in this utility model can achieve the purpose of providing a wire harness sleeve that provides electromagnetic shielding and wear resistance.

[0027] In some specific embodiments, the sleeve has a self-retracting opening.

[0028] In practical use, multiple cables are housed within a wire harness sleeve, requiring the operator to slide one end of each cable through one end of the sleeve. This is extremely time-consuming and labor-intensive. Furthermore, adding or removing cables later is also very time-consuming and labor-intensive. A new sleeve with a self-winding opening allows for easy insertion or removal of cables; simply move the opening to enclose the cable. After the external force is removed, the sleeve returns to its original shape, completely enclosing the cable.

[0029] Self-rolling is a processing method that uses mechanical force to plastically deform materials, thereby forming a rolled shape.

[0030] In some specific embodiments, the second layer 20 is formed by textiles.

[0031] The second layer, 20, is the shielding layer, whose main function is to shield electromagnetic signals. Since cables are flexible, the shielding layer also needs to be flexible. This shielding layer is formed by weaving, allowing for flexible deformation. Furthermore, the shielding layer formed after weaving will not produce creases within a certain bending angle range, thus preventing breakage.

[0032] In some specific embodiments, the first layer 10 and the third layer 30 are also formed by textiles.

[0033] Similarly, the first layer 10 and the second layer 20 are also formed by weaving, which makes the sleeve itself flexible and adaptable to the cable.

[0034] In some specific embodiments, the first layer 10 and the third layer 30 are woven from polymer fibers.

[0035] Polymer fibers are fibrous materials made from polymer compounds, and they have a wide range of types and applications. Polymer fiber materials are inexpensive, easy to mass-produce, and highly spinnable.

[0036] In some specific embodiments, the polymer fibers include aramid, glass fiber, chopped carbon fiber, PTFE, etc.

[0037] One or more of the above materials can be used as textile materials for the first layer 10 and the third layer 30.

[0038] In some specific embodiments, the polymer fibers are composed of single or multiple fibers.

[0039] It can be formed from single fibers of different diameters or from a composite of multiple fibers (e.g., 75D / 150D / 300D / 600D / 1200D, etc.). The specific structural composition of the first layer 10 and the third layer 30 needs to be determined based on the diameter of the formed wire harness sleeve and the required wear resistance level.

[0040] In some specific embodiments, the conductive material includes tin-plated copper wire, copper foil wire, stainless steel wire, conductive fiber, etc.

[0041] Conductive materials only need to be able to conduct electricity and meet certain ductility requirements.

[0042] In some specific embodiments, the sleeve is integrally formed from a first layer 10, a second layer 20, and a third layer 30 via textile fabrication.

[0043] In actual production applications, the materials of the first layer 10, the second layer 20, and the third layer 30 are integrally formed using a textile machine. That is, the same textile machine weaves high-fiber and conductive threads into a three-layer structure. Multilayer textile technology involves bonding multiple layers of fabric together, or combining fabric with polymers or other materials to form composites with multiple functions. This technology not only retains the performance characteristics of the original materials but also allows for material design to complement the properties of each component, creating a composite effect and acquiring new properties not possessed by a single material. This technology prevents relative slippage between the first layer 10, the second layer 20, and the third layer 30.

[0044] Semi-finished products formed by integrated textile molding are generally in sheet form. They need to be rolled up and then heat-treated to give the sleeve self-rolling properties.

[0045] In some specific embodiments, the latitude and longitude density of the third layer 30 is higher than that of the first layer 10.

[0046] On the one hand, the third layer 30 is the outermost layer, and its surface area is the largest when bent. By increasing the warp and weft density of the third layer 30, the knitting density of the third layer 30 and the first layer 10 can be made similar when the sleeve is bent.

[0047] On the other hand, the third layer 30 is the most susceptible to wear on the outermost layer, and increasing the warp and weft density of the third layer 30 can enhance its wear resistance.

[0048] Finally, it should be noted that the wire harness sleeve in this invention typically uses plastic cable ties for further securing after wrapping multiple wire harnesses. Plastic cable ties are inexpensive and can be cut and replaced at any time.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A three-layer wiring harness sleeve characterized by, The sleeve comprises a first layer, a second layer and a third layer from inside to outside, the first layer and the third layer are made of wear-resistant material, and the second layer is made of conductive material.

2. The three-layered wiring harness sleeve of claim 1, wherein, The sleeve has a self-winding opening.

3. The three-layered wiring harness sleeve of claim 1, wherein, The second layer is formed by weaving.

4. The three-layered wiring harness sleeve of claim 3, wherein, The first layer and the third layer are also formed by weaving.

5. The three-layered wiring harness sleeve of claim 4, wherein, The first layer and the third layer are woven by high molecular fiber.

6. The three-layered wiring harness sleeve of claim 5, wherein, The high molecular fiber includes aramid fiber, glass fiber, chopped carbon fiber, PTFE, etc.

7. The three-layered wiring harness sleeve of claim 6, wherein, The high molecular fiber is composed of single or multiple fibers.

8. The three-layered wiring harness sleeve of claim 3, wherein, The conductive material includes tinned copper wire, copper foil wire, stainless steel wire, conductive fiber, etc.

9. The three-layered wiring harness sleeve of claim 4, wherein, The sleeve is integrally formed by weaving the first layer, the second layer and the third layer.

10. The three-layered wiring harness sleeve of claim 3, wherein, The warp and weft density of the third layer is higher than that of the first layer.

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