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Multicoaxial cable

A technology of multi-core cables and wires, applied in cables, communication cables, insulated cables, etc., to achieve the effect of improving bending resistance

Inactive Publication Date: 2019-06-11
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 electrically insulating cable disclosed in Patent Document 1, there is room for improvement in order to achieve both reduction in diameter and bending resistance.

Method used

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Examples

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no. 1 approach

[0080] figure 1 It is a sectional view showing the structure of the electrically insulating cable 10 (an example of a multi-core cable) according to the first embodiment of the present invention. The electrically insulated cable 10 is used, for example, in an electric brake mounted on a vehicle, and can be used as a cable for supplying electric power to a motor that drives a brake caliper. The electrically insulated cable 10 is used in particular in an electric parking brake (Electro Mechanical Parking Brake: EPB).

[0081] Such as figure 1 As shown, the electrically insulated cable 10 has: a core wire 1, a tape 6 (an example of a tape member) wound around the core wire 1, and a sheath 7 (sheath 7) covering the outer periphery of the tape 6 wound around the core wire 1. an example of ). The outer diameter of the electrically insulated cable 10 of this example is in the range of 6-12 mm, preferably in the range of 7.0-10.5 mm.

[0082] The core wire 1 is formed by twisting ...

no. 2 approach

[0105] Below, refer to image 3 , the second embodiment of the present invention will be described. In addition, the same code|symbol is attached|subjected to the part of the same structure as 1st Embodiment, and description is abbreviate|omitted. image 3 A cross section of an electrically insulating cable 30 according to the second embodiment is shown. The electrically insulated cable 30 of the present embodiment can be used to transmit electric signals from a wheel speed sensor, for example, in addition to supplying electric power to an electric brake (for example, an electromechanical parking brake). In addition, the electrically insulated cable 30 can be used for transmitting signals from other devices to a vehicle ECU (Electronic Control Unit) and for transmitting signals from a vehicle ECU to devices.

[0106] Such as image 3 As shown, the difference between the electrically insulated cable 30 of this example and the first embodiment is that, in addition to the two ...

no. 3 approach

[0113] Below, refer to Figure 4 , the third embodiment of the present invention will be described. In addition, the same code|symbol is attached|subjected to the part of the same structure as 1st and 2nd embodiment, and description is abbreviate|omitted. Figure 4 A cross section of an electrically insulating cable 40 according to the third embodiment is shown.

[0114] Such as Figure 4 As shown, the difference between the electrically insulated cable 40 of this example and the second embodiment is that the core wire 1B has a subunit 41 (the third unit an example of ).

[0115] The subunit 41 is formed by twisting two insulated wires 42 (an example of a third insulated wire) each having a diameter smaller than that of the insulated wire 2 but substantially the same as each other. Each of the two insulated electric wires 42 is composed of a conductor 43 and an insulating layer 44 formed to cover the outer periphery of the conductor 43 . The structures of the conductor 43...

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Abstract

The present invention provides a multicoaxial cable with thin diameters and bending resistance. The multicoaxial cable (10) includes a core wire (1) which includes a first unit (20) formed by twistingtwo first insulated electric wires (2), each of the first insulated electric wires (2) including a conductor (5) and an insulating layer (4), the conductor (5) being formed by stranding a plurality of child stranded conductors (5), each of the child stranded conductors being formed by stranding a plurality of conductor wires, and the insulating layer being formed to cover the conductor (5), and asheath which covers the core wire. In the multicoaxial cable (10), a cross-sectional area of the conductor is 1.2 mm2 to 3.5 mm2, the conductor is formed of a hard-drawn copper wire, and an outer diameter of the insulating layer is 2.0 mm to 3.6 mm.

Description

technical field [0001] The present invention relates to multicore cables. Background technique [0002] In Patent Document 1, an electrically insulated cable is disclosed, which has: a core wire formed by twisting a plurality of core materials including a conductor and an insulating layer formed to cover the conductor; and a sheath, It is formed to cover the core wire; and a paper tape is arranged between the core wire and the sheath in a state of being wound around the core wire (see Patent Document 1). [0003] Patent Document 1: Japanese Patent Laid-Open No. 2014-220043 [0004] However, in the structure of the electrically insulating cable disclosed in Patent Document 1, there is room for improvement in order to achieve both reduction in diameter and bending resistance. Contents of the invention [0005] An object of the present invention is to provide a multi-core cable capable of both reduction in diameter and improvement in bending resistance. [0006] In order t...

Claims

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Application Information

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IPC IPC(8): H01B7/00H01B7/02H01B7/04H01B7/17H01B7/18
CPCH01B11/20H01B7/04H01B7/1875H01B7/0009H01B11/002
Inventor 小堀孝哉
Owner SUMITOMO ELECTRIC IND LTD
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