New energy automobile high-voltage wiring harness

Abstract

The utility model discloses a high-voltage wire harness for a new energy automobile. The high-voltage wire harness comprises a plurality of conductors; an inner semiconductor layer, an insulating layer, an outer semiconductor layer and a metal armor composite layer are sequentially arranged outside the conductors, a first insulating filling body is arranged among the conductors, a second insulating filling body is arranged between every two adjacent conductors, and a shielding layer, an armor layer and a protective sleeve are sequentially arranged outside the conductors. According to the utility model, the semiconductor layer is arranged between the conductor and the insulating layer, and the semiconductor layer is mainly used for improving the electric field effect and preventing partial discharge from damaging the insulating layer; the metal armor composite layer composites the copper net layer and the metal strip braid layer together to play a role in shielding and protection, and the composite layer is grounded, so that current can be guided to the ground under the condition that the wire harness is damaged and leaks electricity, and the safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile wiring harnesses, and specifically relates to a high-voltage wiring harness for new energy vehicles. Background Art

[0002] New energy vehicles are powered by batteries, and the batteries and motors are connected by wiring harnesses. Today's electric vehicles often have natural problems, and the reason is also closely related to the wiring harness. If the internal structure of the wiring harness is loose during the power transmission process, micro-discharge will occur between the conductors, and surface damage is prone to natural discharge or short circuit, affecting safety. In order to solve this problem, a new energy vehicle high-voltage wiring harness is provided. Utility Model Content

[0003] In view of this, the technical problem to be solved by the present invention is to provide a high-voltage wiring harness for new energy vehicles, which solves the problem of easy discharge and leakage of the internal structure of the wiring harness in the prior art.

[0004] In order to solve the above technical problems, the utility model discloses a high-voltage wiring harness for new energy vehicles, comprising: multiple conductors; an inner semiconductor layer, an insulating layer, an outer semiconductor layer and a metal armor composite layer are sequentially arranged on the outside of the conductors, an insulating filling body 1 is arranged in the middle of the multiple conductors, an insulating filling body 2 is arranged between two adjacent conductors, and a shielding layer, an armor layer and a protective cover are sequentially arranged on the outside of the multiple conductors.

[0005] Furthermore, the cross section of the insulating filling body 1 is in the shape of a circular tube.

[0006] Furthermore, the cross section of the insulating filling body 2 is fan-shaped and its edges are all arc-shaped.

[0007] Furthermore, the metal armor composite layer comprises a copper mesh layer, an insulating connection layer and a metal strip braided layer.

[0008] Furthermore, the above-mentioned insulating connection layer is an insulating single-component solid silicone.

[0009] Compared with the prior art, the present application can obtain the following technical effects:

[0010] The utility model provides a semiconductor layer between the conductor and the insulating layer. The semiconductor layer mainly functions to improve the electric field effect and avoid local discharge that damages the insulating layer. The metal armor composite layer composites the copper mesh layer and the metal strip braided layer together to play a shielding and protective role. The composite layer is grounded and can guide the current to the ground in the event of wiring harness damage and leakage, thereby improving safety.

[0011] Of course, any product implementing this application does not necessarily need to achieve all of the technical effects described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0013] Figure 1 is a schematic cross-sectional view of a wiring harness according to an embodiment of the present utility model;

[0014] Figure 2 It is a schematic cross-sectional view of a metal armor composite layer according to one embodiment of the utility model.

[0015] Figure ID

[0016] Conductor 1, inner semiconductor layer 2, insulating layer 3, outer semiconductor layer 4, metal armor composite layer 5, insulating filling body 1 6, insulating filling body 2 7, shielding layer 8, armor layer 9, protective cover 10, copper mesh layer 11, insulating connecting layer 12, metal strip braided layer 13. DETAILED DESCRIPTION

[0017] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0018] Please refer to Figure 1 and Figure 2 , Figure 1 is a schematic cross-sectional view of a wiring harness according to an embodiment of the present utility model; Figure 2 It is a schematic cross-sectional view of a metal armor composite layer according to one embodiment of the utility model.

[0019] A high-voltage wiring harness for new energy vehicles comprises: a plurality of conductors 1; an inner semiconductor layer 2, an insulating layer 3, an outer semiconductor layer 4 and a metal armor composite layer 5 are sequentially arranged on the outside of the conductors 1; an insulating filler 1 6 is arranged in the middle of the plurality of conductors 1, an insulating filler 2 7 is arranged between two adjacent conductors 1; a shielding layer 8, an armor layer 9 and a protective cover 10 are sequentially arranged on the outside of the plurality of conductors 1.

[0020] The cross section of the insulating filler 1 6 is in the shape of a circular tube; the cross section of the insulating filler 2 7 is in the shape of a fan-shaped block, and its edges are all arc-shaped; the metal armor composite layer 5 has a copper mesh layer 11, an insulating connecting layer 12 and a metal strip braided layer 13, and the insulating connecting layer 12 is an insulating single-component solid silicone.

[0021] Since there is a gap between the conductor 1 and the insulating layer 3 of the high-voltage wire harness, local discharge is likely to occur and damage the insulating layer 3. In order to improve this situation, a layer of semiconductor material is added between the metal conductor 1 and the insulating layer 3 to play a transition role. Its function is to avoid local discharge between the conductor 1 and the insulating layer 3, and between the insulating layer 3 and the metal armor composite layer 5.

[0022] The metal armor composite layer 5 can be regarded as a capacitor. An insulating material is set between the two metal conductors 1. The basic principle of the capacitor is two metal plates separated by an insulating medium. Alternating current will charge and discharge the capacitor, so the metal armor composite layer 5 can provide a circuit for charging and discharging the capacitor.

[0023] In summary, the utility model arranges a semiconductor layer between the conductor 1 and the insulating layer 3. The main function of the semiconductor layer is to improve the electric field effect and avoid local discharge that damages the insulating layer. The metal armor composite layer 5 composites the copper mesh layer 11 and the metal strip woven layer 13 together to play a shielding and protective role. The composite layer is grounded, which can guide the current to the ground in the event of wiring harness damage and leakage, thereby improving safety.

[0024] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A high-voltage wire harness for new energy vehicles, comprising: Multiple conductors; It is characterized in that an inner semiconductor layer, an insulating layer, an outer semiconductor layer and a metal armor composite layer are sequentially provided on the outside of the conductor, an insulating filling body 1 is provided in the middle of multiple conductors, an insulating filling body 2 is provided between two adjacent conductors, and a shielding layer, an armor layer and a protective cover are sequentially provided on the outside of multiple conductors.

2. The high-voltage wire harness for new energy vehicles according to claim 1, characterized in that: The cross section of the insulating filling body 1 is in the shape of a circular tube.

3. The high-voltage wire harness for new energy vehicles according to claim 1, characterized in that: The cross section of the second insulating filling body is fan-shaped and its edges are all arc-shaped.

4. The high-voltage wire harness for new energy vehicles according to claim 1, characterized in that: The metal armor composite layer comprises a copper mesh layer, an insulating connection layer and a metal strip braiding layer.

5. The high-voltage wire harness for new energy vehicles as claimed in claim 4, characterized in that: The insulating connection layer is insulating single-component solid silica gel.

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