Cable applied to battery voltage sampling of new energy electric vehicle and production process thereof

A voltage sampling and new energy technology, which is applied in the direction of insulated cables, cable/conductor manufacturing, cables, etc., can solve problems such as intermittent crushing of core wires, difficult cable installation, and irregular core wire structures, and achieve inductance and resistance Stabilize and improve the effect of acquisition accuracy

Pending Publication Date: 2021-09-24
珠海中盛电线电缆有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a cable and its production process for battery voltage sampling of new energy electric vehicles, so as to solve the difficulties in cable installation caused by the irregular structure of the core wire and the hard outer layer of the cable, the looseness of the core wire and the easy To improve the accuracy of electric vehicle power battery voltage acquisition

Method used

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  • Cable applied to battery voltage sampling of new energy electric vehicle and production process thereof
  • Cable applied to battery voltage sampling of new energy electric vehicle and production process thereof
  • Cable applied to battery voltage sampling of new energy electric vehicle and production process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] like figure 1 As shown, the cable of this embodiment includes a cable body 1. The cable body 1 includes a cable outer layer 11 and a core wire cluster 12. The core wire cluster 12 includes an inner layer core wire formed by forward twisting of three inner layer core wires 122. Tufts 121, 9 reversely twisted and wrapped outer core wires 123 of the inner core wire cluster 121, the twist distance of the inner core wire cluster 121 is 65-70mm, the diameter of the inner core wire 122 and the outer core wire 123 They are all the same, the periphery of the core wire cluster 12 is wrapped with a PET polyester tape 15, the periphery of the PET polyester tape 15 is wrapped with a shielding layer 13, the shielding layer 13 is a wire braided mesh, and the outer layer 11 of the cable is wrapped with the shielding layer 13. peripheral.

[0035] Below is the production process of the cable described in this embodiment:

[0036] Step 1: Use 3 inner layer core wires 122 to carry out f...

Embodiment 2

[0047] like figure 2 As shown, the cable in this embodiment includes all the features of the cable described in Embodiment 1; the cable in this embodiment also includes a buffer sleeve 2 wrapped around the outer layer 11 of the cable, and the outer layer 11 of the cable is provided with a second A T-shaped tooth 14, the inner wall of the buffer sleeve 2 is provided with a first T-shaped tooth groove that cooperates with the first T-shaped tooth 14, and the buffer sleeve 2 is provided with several centrally symmetrical first buffer chambers 21, several centrally symmetrical and parallel The second buffer chamber 22 is dislocated from the first buffer chamber 21 .

[0048] The cable production process of the present embodiment comprises all steps of the production process described in embodiment 1, and also includes the following steps:

[0049] Step 6a, the second extrusion die extrudes the buffer sleeve 2, the cable body 1 made in step 5 passes through the buffer sleeve 2, s...

Embodiment 3

[0051] like image 3 As shown, the cable in this embodiment includes all the features of the cable described in Embodiment 1; the cable in this embodiment also includes a first buffer layer 31 wrapped around the outer layer 11 of the cable, and wrapped around the outer layer of the first buffer layer 31. The second buffer layer 32, the outer periphery of the cable outer layer 11 is provided with a first T-shaped tooth 14, the inner wall of the first buffer layer 31 is provided with a second T-shaped tooth groove that cooperates with the first T-shaped tooth 14, and the cable The outer wall of the outer layer 11 is fitted with the first buffer groove 311 of the parallel cavity, the outer wall of the first buffer layer 31 is provided with a second T-shaped tooth 312, and the inner wall of the second buffer layer 32 is provided with a second T-shaped tooth 312. The third T-shaped tooth groove, the second buffer groove 321 that cooperates with the outer wall of the first buffer la...

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Abstract

The invention provides a cable applied to battery voltage sampling of a new energy electric vehicle and a production process of the cable. A core wire cluster is an inner-layer core wire cluster formed by positively twisting a plurality of inner-layer core wires, and a plurality of outer-layer core wires which are reversely twisted and wrap the inner-layer core wire cluster are adopted, so that the structure of the core wire cluster is round and neat, and when the bending radius is too small or the wiring harness installation space of a power battery of the electric vehicle is narrow, the core wire is not liable to be discontinuously crushed and loosened, and accordingly the stability of capacitance, inductance and resistance of the core wire is ensured, and the voltage acquisition accuracy of the power battery of the electric vehicle is improved. The invention belongs to the technical field of wires and cables.

Description

technical field [0001] The invention belongs to the technical field of electric wires and cables, and in particular relates to a cable used in battery voltage sampling of new energy electric vehicles and a production process thereof. Background technique [0002] The power battery pack is an important energy component of a hybrid electric drive vehicle. It can not only provide electric energy for the motor drive system, but also absorb regenerative braking energy, and play an important role in power balance in the vehicle energy system. [0003] At present, the multi-core cable used by the power battery has an unrounded core wire structure and the outer layer of the cable is too hard. As a result, the cable is easily installed when the bending radius is too small or the wiring harness space for the electric vehicle power battery is small. The core wire is loose and the core wire is easily subjected to intermittent crushing, which greatly affects the accuracy of electric vehi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/17H01B7/18H01B13/00H01B13/02H01B13/22H01B13/24
CPCH01B7/17H01B7/18H01B13/00H01B13/02H01B13/22H01B13/24
Inventor 吴佳憶
Owner 珠海中盛电线电缆有限责任公司
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