A high voltage wiring harness for power battery

Abstract

The utility model discloses a high-voltage wire harness for a power battery, comprising: a plurality of conductive wire cores; an insulating sleeve covering the plurality of conductive wire cores; an inner metal shielding mesh layer woven on the outer layer of the insulating sleeve; an intermediate sheath sleeved on the inner metal shielding mesh layer, the outer side of the intermediate sheath having a spiral groove; a metal shielding belt embedded in the spiral groove; an outer sheath arranged on the outer ring of the metal shielding belt and the intermediate sheath, the outer sheath having a plurality of arc protrusions staggered with the metal shielding belt. The utility model realizes high-voltage shielding by arranging a spiral groove on the intermediate sheath, and the metal shielding belt and the outer sheath are wound together, and the installation is more stable, and the internal filling of flame-retardant fiber enhances the safety performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile wiring harnesses, and in particular relates to a high-voltage wiring harness for a power battery. Background Art

[0002] Electric vehicles are systems with high voltages of more than 600V and high currents of more than 300A. The shielding of high-voltage wiring harnesses includes the shielding of high-voltage wires and the shielding of the junction between the shielding layer of the high-voltage wires and the crimped shielding connectors. The traditional shielding method of high-voltage wires is to use tinned copper wire to weave a shielding net and then wrap it with aluminum foil. The processing efficiency is low, it is easy to break, the shielding effect is not durable, and the safety performance will be affected. Therefore, the development of a new high-voltage wiring harness is of great significance to ensure the stability of the wiring harness and the safety of high-voltage transmission. Utility Model Content

[0003] In view of this, the technical problem to be solved by the utility model is to provide a high-voltage wire harness for a power battery, so as to avoid the trouble of low high-voltage resistance of the previous automobile wire harness.

[0004] In order to solve the above technical problems, the utility model discloses a high-voltage wiring harness for a power battery, comprising:

[0005] A plurality of conductive cores;

[0006] An insulating sleeve covering a plurality of conductive wire cores;

[0007] An inner metal shielding mesh layer woven on the outer layer of the insulating sleeve;

[0008] An intermediate sheath is sleeved on the inner metal shielding mesh layer, and the outer side of the intermediate sheath has a spiral groove;

[0009] A metal shielding tape embedded in the spiral groove;

[0010] The outer sheath is arranged on the outer ring of the metal shielding belt and the intermediate sheath, and the outer sheath has a plurality of arc protrusions staggered on the metal shielding belt.

[0011] According to an embodiment of the present invention, the thickness of the metal shielding tape is 1 mm.

[0012] According to an embodiment of the present invention, flame retardant fibers are filled between the outer sheath and the middle sheath.

[0013] According to an embodiment of the utility model, the arc protrusion stops at the middle sheath, and the metal shielding belt is pressed against the outer sheath.

[0014] Compared with the prior art, the utility model can obtain the following technical effects:

[0015] By setting spiral grooves on the middle sheath and winding metal shielding tape and outer sheath, high-voltage shielding can be achieved. At the same time, the installation is more stable, and the flame-retardant fiber is filled inside to enhance the safety performance.

[0016] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of a high-voltage wire harness for a power battery according to an embodiment of the utility model.

[0019] Figure ID

[0020] Conductive core 10 , insulating sleeve 20 , inner metal shielding mesh layer 30 , middle sheath 40 , metal shielding tape 50 , outer sheath 60 . DETAILED DESCRIPTION

[0021] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0022] Please refer to Figure 1 , Figure 1 It is a schematic diagram of a high-voltage wire harness for a power battery according to an embodiment of the utility model.

[0023] As shown in the figure, a high-voltage wire harness for a power battery includes: a plurality of conductive cores 10; an insulating sleeve 20 covering the plurality of conductive cores 10; an inner metal shielding mesh layer 30 woven on the outer layer of the insulating sleeve 20; an intermediate sheath 40 sleeved on the inner metal shielding mesh layer 30, the outer side of the intermediate sheath 40 having a spiral groove; a metal shielding belt 50 embedded in the spiral groove; an outer sheath 60 arranged on the outer circle of the metal shielding belt 50 and the intermediate sheath 40, the outer sheath 60 having a plurality of arc protrusions staggered on the metal shielding belt 50.

[0024] In one embodiment of the utility model, the conductive core 10 is covered with an insulating sleeve 20, and then a layer of inner metal shielding mesh is woven to perform electromagnetic shielding to reduce external interference. The middle sheath 40 is a PE sheath to improve strength protection, and a spiral groove for accommodating the metal shielding belt 50 is cut on its surface, arranged in a spring shape, further enhancing the shielding effect. At the same time, the spiral groove is embedded to enhance the stability of its arrangement, avoid back and forth movement, and install more stably. Compared with the aluminum foil design, it has higher durability and also enhances the toughness of the wire harness. The outer sheath 60 is an external sheath protection, which contacts the middle sheath 40 through the arc protrusion to enhance support stability.

[0025] Preferably, the metal shielding tape 50 has a thickness of 1 m and good stability, and is suitable for high-voltage wire harnesses.

[0026] The outer sheath 60 and the middle sheath 40 of the present invention are filled with flame retardant fibers to act as fillers and improve flame retardancy.

[0027] In addition, the arc protrusion stops at the middle sheath 40, and the metal shielding belt 50 presses against the outer sheath 60, ensuring that the two are compacted and enhancing high stability.

[0028] In summary, the utility model realizes high voltage shielding by arranging spiral grooves on the middle sheath 40 in coordination with the winding of the metal shielding tape 50 and the outer sheath 60. Meanwhile, the installation is more stable and the internal filling of flame-retardant fibers enhances the safety performance.

[0029] 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 a power battery, characterized in that: include: A plurality of conductive wire cores; An insulating sleeve covering the plurality of conductive wire cores; An inner metal shielding mesh layer woven on the outer layer of the insulating sleeve; An intermediate sheath is sleeved on the inner metal shielding mesh layer, and the outer side of the intermediate sheath has a spiral groove; A metal shielding tape embedded in the spiral groove; An outer sheath is arranged on the outer ring of the metal shielding belt and the intermediate sheath, and the outer sheath has a plurality of arc protrusions staggered with the metal shielding belt.

2. The high-voltage wire harness for a power battery according to claim 1, characterized in that: The thickness of the metal shielding tape is 1 mm.

3. The high-voltage wire harness for a power battery according to claim 1, characterized in that: The space between the outer sheath and the middle sheath is filled with flame retardant fibers.

4. The high-voltage wire harness for a power battery according to claim 1, characterized in that: The arc protrusion stops at the middle sheath, and the metal shielding belt presses against the outer sheath.

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