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Insulated electric cable

A technology for electrical insulation and wires, applied in the direction of insulated cables, insulated conductors, cables, etc., can solve the problems of reduced workability, reduced adhesion, powder scattering, etc., and achieves good workability

Active Publication Date: 2014-11-05
SUMITOMO ELECTRIC IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the structure of the cable of the above-mentioned patent document 1, in order to take out the core wire, when the blade cuts into the sheath and the covering layer to remove them, the powder coated on the outer peripheral surface of the core wire may fly around
If the powder is scattered around the operator, the workability of taking out the core wire will be reduced.
In addition, although it is intended to reduce the adhesion force between the core wire and the sheath by means of powder, the adhesion force does not necessarily decrease, and there are still cases where it is difficult to remove the sheath

Method used

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  • Insulated electric cable
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Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0047] figure 1 It is a cross-sectional view showing the structure of the electrically insulating cable 10 according to the first embodiment of the present invention. The electrically insulated cable 10 is used, for example, in an electric parking brake (Electro Mechanical Parking Brake: EPB) mounted on a vehicle, and can be used as a cable that transmits an electric signal to a motor that drives a brake caliper. .

[0048] Such as figure 1 As shown, an electrically insulated cable 10 has: a core material 1; a paper tape 2 (an example of a tape member) wound on the core material 1; and a sheath 3 covering the paper wound on the core material 1. The outer periphery of the band 2 is covered. The outer diameter of the electrically insulated cable 10 of this example is set within a range of 6 to 12 mm, preferably within a range of 8.3 to 10.3 mm.

[0049] The core material 1 is formed by twisting two first core electric wires 4 (an example of core electric wires), and the two ...

no. 2 Embodiment approach

[0064] Below, refer to image 3 A second embodiment of the present invention will be described. In addition, the same code|symbol is attached|subjected to the part with the same structure as 1st Embodiment, and description is abbreviate|omitted. image 3 A cross section of the electrically insulating cable 30 according to the second embodiment is shown. The electrically insulated cable 30 of this example can also be used to transmit electrical signals for controlling the operation of an anti-lock brake system (Antilock Brake System: ABS) in addition to the use for transmitting electrical signals of an electric parking brake.

[0065] Such as image 3 As shown, the electrically insulated cable 30 of this example differs from the first embodiment in that the core material 1A includes a subunit 31 for transmitting ABS signals in addition to the two first core wires 4 .

[0066] The subunit 31 is formed by twisting two second core electric wires 32 (an example of core electric ...

Embodiment 1

[0075]As an electrically insulated cable (for EPB) for a test, a cable having the following structures in each part was produced. The material of the conductor constituting the first core electric wire is a copper alloy wire (a double-stranded wire formed by twisting 52 base wires with an outer diameter of 0.08mm to form a twisted wire, and twisting seven of the twisted wires) Line), the cross-sectional area of ​​the conductor (the total cross-sectional area of ​​the baseline) is set to 1.8mm 2 , the outer diameter is set to 2.0mm. In addition, the material of the insulating layer formed around the conductor was flame-retardant cross-linked polyethylene, the thickness of the insulating layer was 0.4 mm, and the outer diameter was 2.8 mm. In addition, the number of core electric wires (first core electric wires) constituting the core material was set to two, and the stranding diameter (outer diameter in the twisted state) was set to 5.6 mm. In addition, as the structure of th...

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Abstract

An insulated electric cable 10 has a core member 1 formed by stranding a plurality of core wires 4, each of the core wires 4 including a conductor 5 and an insulating layer 6 covering the conductor 5, an inner sheath 7 covering the core member 1, an outer sheath 8 covering the inner sheath 7, and a paper tape 2 disposed between the core member 1 and the inner sheath 7 in a state that it is wrapped around the core member 1, in which the outer sheath 8 is formed by a flame-retardant polyurethane resin, and a cross-sectional area of each of conductors 5 is within 0.18-3.0 mm2.

Description

technical field [0001] The present invention relates to an electrically insulated cable comprising tape components. Background technique [0002] A cable is known that includes: a core wire consisting of a conductor and an insulating layer covering the conductor; a covering layer covering the core wire; and a sheath covering the covering layer. to cover. A technique is known in which powder is intermittently applied in advance to the outer peripheral surface of the core wire along the length direction of the cable when manufacturing the cable, so that the coating layer of the cable can be easily peeled off and the core wire can be easily taken out. (Refer to Patent Document 1). [0003] Patent Document 1: Japanese Patent Laid-Open No. 2008-269892. [0004] However, in the structure of the cable of the above-mentioned patent document 1, in order to take out the core wire, when the blade cuts into the sheath and the covering layer to remove them, the powder coated on the ou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B7/17H01B7/29H01B13/00
CPCH01B7/295
Inventor 桥本智越智祐司石川雅之匈坂多佳实小堀孝哉
Owner SUMITOMO ELECTRIC IND LTD
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