New energy automobile high-voltage cable with multi-layer structure

Abstract

The utility model discloses a new energy automobile high-voltage cable with a multilayer structure, which comprises a stranded conductor and an isolating layer wrapped on the outer side of the stranded conductor, a shielding layer is wrapped on the outer side of the isolating layer, a buffer layer is wrapped on the outer side of the shielding layer, and an outer protection layer with uniform thickness is wrapped on the outer side of the buffer layer. According to the utility model, the requirement of laying in a narrow space in a vehicle can be met, the copper-aluminum composite wire core has the characteristics of electrical conductivity of copper and light weight of aluminum, the stranded wire structure improves the flexibility, adapts to repeated bending use scenes, and has high wear resistance, ultraviolet resistance and high temperature resistance, and meanwhile, the nano ceramic filler is added to enhance the thermal aging resistance, so that the service life of the cable is prolonged. And cable service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile high -voltage cable especially relates to a multilayer structure new energy automobile high -voltage cable. BACKGROUND

[0002] New energy automobile refers to the automobile using non traditional petroleum fuel as power source, along with the advancement of environmental protection policy and the concern of consumer to green environmental protection, new energy automobile market is growing rapidly, becomes the future trend of global automobile industry, and the high -voltage cable in new energy automobile is mainly used for the electric energy transmission between battery system and drive system, especially in electric automobile and plug -in hybrid electric vehicle, high -voltage cable bears the electric power transmission task of battery pack to electric motor, charging interface and other key components.

[0003] The new energy automobile high -voltage cable currently applied in the actual application process is laid in the narrow space in the automobile, and the bending resistance is required to be high, however, the bending resistance of the existing new energy automobile high -voltage cable is not ideal, and since the battery system of new energy automobile generates a large amount of heat during charging and discharging, the high -voltage cable in the prior art has poor high -temperature resistance, thereby shortening the normal service life of the automobile high -voltage cable. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems existing in the prior art, the utility model is proposed.

[0006] Therefore, the utility model aims at providing a multilayer structure new energy automobile high -voltage cable, which is suitable for solving the problem that the bending resistance of the existing new energy automobile high -voltage cable is not ideal, and since the battery system of new energy automobile generates a large amount of heat during charging and discharging, the high -voltage cable in the prior art has poor high -temperature resistance, thereby shortening the normal service life of the automobile high -voltage cable.

[0007] To solve the above technical problems, the utility model provides the following technical scheme: a multilayer structure new energy automobile high -voltage cable, comprising:

[0008] The twisted conductor and the insulating layer wrapped outside the twisted conductor, the shielding layer is wrapped outside the insulating layer, the buffer layer is wrapped outside the shielding layer, and the outer protective layer with uniform thickness is wrapped outside the buffer layer.

[0009] As a preferred scheme of the multi-layer structure new energy automobile high-voltage cable, one side of the outer protective layer fixed pad is provided with a plane pad, and the plane pad is provided with a double-sided shoulder strap away from the outer protective layer.

[0010] As a preferred scheme of the multi-layer structure new energy automobile high-voltage cable, an inner lining layer is arranged between the twisted conductor outer side and the isolation layer fixed pad, and the thickness of the inner lining layer is one third to one half of the thickness of the isolation layer.

[0011] As a preferred scheme of the multi-layer structure new energy automobile high-voltage cable, the twisted conductor is a copper-aluminum composite wire core structure, and the twisted conductor is arranged in a twisted wire mode.

[0012] As a preferred scheme of the multi-layer structure new energy automobile high-voltage cable, the shielding layer is composed of braided copper wire and silver-plated aluminum foil.

[0013] As a preferred scheme of the multi-layer structure new energy automobile high-voltage cable, the temperature resistance range of the outer protective layer is-60 DEG C to 250 DEG C.

[0014] The twisted conductor provides high conductivity and good bending performance, can meet the demand of laying in the narrow space in the vehicle, the copper-aluminum composite wire core has the conductivity of copper and the lightweight characteristics of aluminum, the twisted wire structure improves the flexibility, adapts to the multiple bending use scene, the setting of the outer protective layer makes the high-voltage cable have high wear resistance, ultraviolet resistance and high temperature resistance, and the anti-thermal aging capacity is enhanced by adding nano ceramic filler, the setting of the inner lining layer can assist heat dissipation, reduce the heat accumulation of the twisted conductor in high-voltage work, and prolong the service life of the cable. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings. Among them:

[0016] Fig. 1 The utility model provides a kind of overall structure schematic diagram of multi-layer structure new energy automobile high-voltage cable;

[0017] Fig. 2 The utility model provides a kind of sectional structure schematic diagram of multi-layer structure new energy automobile high-voltage cable.

[0018] Figure description: 101 Outer protective layer, 102 Buffer layer, 103 Shielding layer, 104 Isolation layer, 105 Inner lining layer, 106 Strapped conductor, 107 Flat pad, 108 Double-sided shoulder strap. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0022] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0023] Example

[0024] Reference Figs. 1-2 As one embodiment of this utility model, a multi-layer high-voltage cable for new energy vehicles is provided, comprising:

[0025] The twisted conductor 106 and the isolation layer 104 wrapped outside the twisted conductor 106, the twisted conductor 106 provides high conductivity and good bending performance, can meet the demand of laying in the narrow space in the car, the copper-aluminum composite wire core has the conductivity of copper and the lightweight characteristics of aluminum, the twisted structure improves the flexibility and adapts to the use scene of multiple bending, the twisted conductor 106 is a copper-aluminum composite wire core structure, and the twisted conductor 106 is arranged in a twisted manner, the shielding layer 103 is wrapped outside the isolation layer 104, the shielding layer 103 is composed of braided copper wire and silver-plated aluminum foil, which can reduce electromagnetic interference and ensure the stability of signal transmission, and the silver plating process improves the conductivity of the automobile high-voltage cable under high temperature conditions, the buffer layer 102 is wrapped outside the shielding layer 103, and a uniform-thickness outer protective layer 101 is wrapped outside the buffer layer 102, the temperature resistance range of the outer protective layer 101 is-60℃ to 250℃, the outer protective layer 101 is composed of high-performance fluorine rubber and nano ceramic filler, which improves the high-temperature resistance, wear resistance and oxidation resistance of the automobile high-voltage cable, and the setting of the outer protective layer 101 enables the high-voltage cable to have high wear resistance, ultraviolet resistance and high temperature resistance, and the addition of nano ceramic filler enhances the heat aging resistance.

[0026] The side fixed pad of the outer protective layer 101 is provided with a flat pad 107, and the side away from the outer protective layer 101 of the flat pad 107 is provided with a double-sided strap 108, so that the automobile high-voltage cable can be laid flexibly in a narrow space through the setting of the flat pad 107 and the double-sided strap 108.

[0027] The inner lining layer 105 is arranged between the twisted conductor 106 and the isolation layer 104, the thickness of the inner lining layer 105 is one-third to one-half of the thickness of the isolation layer 104, the inner lining layer 105 is made of high-thermal-conductivity silicone composite material, and the setting of the inner lining layer 105 can assist heat dissipation, reduce heat accumulation of the twisted conductor 106 under high voltage, and prolong the service life of the cable.

[0028] During use, the twisted conductor 106 provides high conductivity and good bending performance, can meet the demand of laying in the narrow space in the car, the copper-aluminum composite wire core has the conductivity of copper and the lightweight characteristics of aluminum, the twisted structure improves the flexibility and adapts to the use scene of multiple bending, the setting of the outer protective layer 101 enables the high-voltage cable to have high wear resistance, ultraviolet resistance and high temperature resistance, and the addition of nano ceramic filler enhances the heat aging resistance, the setting of the inner lining layer 105 can assist heat dissipation, reduce heat accumulation of the twisted conductor 106 under high voltage, and prolong the service life of the cable.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A multi-layer structure new energy vehicle high-voltage cable, characterized in that, It includes: The twisted conductor (106) and the isolation layer (104) wrapped outside the twisted conductor (106), the shielding layer (103) wrapped outside the isolation layer (104), the buffer layer (102) wrapped outside the shielding layer (103), and the outer protective layer (101) with uniform thickness wrapped outside the buffer layer (102). 2.The multi-layer structure new energy vehicle high-voltage cable according to claim 1, characterized in that: The flat pad (107) is fixed on one side of the outer protective layer (101), and the double-sided strap (108) is fixed on the side of the flat pad (107) away from the outer protective layer (101). 3.The multi-layer structure new energy vehicle high-voltage cable according to claim 1, characterized in that: The inner lining layer (105) is fixed between the twisted conductor (106) and the isolation layer (104), and the thickness of the inner lining layer (105) is one third to one half of the thickness of the isolation layer (104).

4. The multi-layer structure new energy vehicle high-voltage cable according to claim 1, characterized in that: The twisted conductor (106) is a copper-aluminum composite wire core structure, and the twisted conductor (106) is arranged in a twisted wire manner. 5.The multi-layer structure new energy vehicle high-voltage cable according to claim 1, characterized in that: The shielding layer (103) is composed of braided copper wire and silver-plated aluminum foil. 6.The multi-layer structure new energy vehicle high-voltage cable according to claim 1, characterized in that: The temperature resistance range of the outer protective layer (101) is-60℃ to 250℃.

Images