Braided cable structure with sensor

Abstract

This increases the number of sensors that can be mounted without changing the thickness of the sensor-equipped braided cable. [Solution] Multiple strands 113 for connecting to the sensor 112 are arranged around the core material as a braided wire, an insulating layer 114 is provided on the surface of each strand to prevent current from flowing between the strands 113, a GND wire 120 is placed inside the core material, and all of the multiple strands 113 are electrically connected to the GND wire 120.

Description

Technical Field

[0001] The present invention relates to the structure of a braided cable with sensors mounted at different positions in the longitudinal direction of the cable.

Background Art

[0002] Conventionally, the applicant has obtained a patent for a cable in which the wire strands 13 connected to the sensor are configured as braided wires, an insulating layer is provided on the surface of each wire strand 13 to prevent energization between the wire strands 13, and a specific braided bundle can be identified from a number of braided bundles by two indicators: the combination of the colors of the insulating layers and the twisting direction of the braided bundles constituting the braided wire (see Patent Document 1).

[0003] The applicant has used this technology to provide various sensors (for example, temperature sensors) 12 at different positions in the longitudinal direction of the cable 10 (see FIG. 3), and enabled the temperature at a plurality of locations within the range where the cable 10 is laid to be detected using a single cable (sensor-mounted braided cable). Note that the sensors to be mounted are not limited to temperature sensors.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the conventional technology, as shown in FIG. 4, one sensor 12 is arranged using two wire strands 13. Therefore, when it is desired to increase the number of sensors 12 (for example, when it is desired to detect a wider range of temperatures or more finely detect temperatures using a single sensor-mounted braided cable), it is inevitably necessary to increase the number of wire strands 13. In FIG. 4, for ease of understanding, the braiding is shown linearly.

[0006] While increasing the number of strands 13 is not inherently difficult, doing so would inevitably make the sensor-mounted braided cable thicker, leading to problems such as poor cable handling and increased weight.

[0007] Therefore, the present invention was made to solve these problems, and its objective is to increase the number of sensors that can be mounted without changing the thickness of the sensor-mounted braided cable. [Means for solving the problem]

[0008] To solve the above problems, the present invention is characterized in that a plurality of strands for connecting to a sensor are arranged as a braided wire around a core material, an insulating layer is provided on the surface of each strand to prevent current from flowing between the strands, a GND wire is placed inside the core material, and all of the plurality of strands and the GND wire are electrically connected.

[0009] This configuration allows one sensor to be mounted on each strand. In other words, it is now possible to mount twice as many sensors on a braided cable with the same number of strands as before.

[0010] Furthermore, the sensors are characterized by being mounted at different positions along the longitudinal direction of the cable.

[0011] This configuration makes it possible to measure temperature and other parameters at a larger number of locations within the area where the sensor-equipped braided cable is laid. [Effects of the Invention]

[0012] By applying the present invention, the number of sensors that can be mounted can be increased without changing the thickness of the sensor-mounted braided cable. [Brief explanation of the drawing]

[0013] [Figure 1] This is a circuit diagram of a sensor-mounted braided cable showing an example of an embodiment of the present invention. [Figure 2] This is a cross-sectional view of a sensor-mounted braided cable showing an example of an embodiment of the present invention. [Figure 3] This is a diagram showing the external appearance of a conventional sensor-equipped braided cable. [Figure 4] This is a circuit diagram of a conventional sensor-equipped braided cable. [Modes for carrying out the invention]

[0014] The following describes a sensor-mounted braided cable 100, which is an example of an embodiment of the present invention, with reference to the attached drawings. Note that, for ease of understanding the drawings, some parts of the size and dimensions are exaggerated and may not necessarily match the actual product. Furthermore, each drawing should be viewed in the direction of the reference numerals, and these directions are used as the basis for describing up, down, left, right, front, and back.

[0015] <Configuration of the sensor-equipped braided cable> As shown in Figure 2, a sensor-mounted braided cable 100, which illustrates an example of an embodiment of the present invention, has a thick copper GND wire 120 running through its center, surrounded by a sheath 111. In this embodiment, the GND wire 120 and the sheath 111 constitute the "core material." High-tensile fibers or the like may be added to the core material separately.

[0016] Braided strands 113 are arranged around these core materials (GND wire 120 and insulation 111). An insulating layer 114 is provided on the surface of each strand 113 to prevent current from flowing between them (see enlarged section of Figure 2).

[0017] Furthermore, each of these strands 113 and the GND wire 120 are electrically connected at the tip of the cable 100 (see Figure 1; in Figure 1, the braid is shown linearly for ease of understanding).

[0018] With such a configuration, one sensor 112 can be mounted on one strand 113. That is, in a braided cable with the same number of strands, it is possible to mount twice as many sensors as before.

[0019] Since the sensors are mounted at different positions in the longitudinal direction of the cable, it becomes possible to measure the temperature etc. at more locations within the range where the sensor-mounted braided cable is laid.

Explanation of Signs

[0020] 100 ··· Sensor-mounted braided cable 111 ··· Coating 113 ··· Strand (braid) 114 ··· Insulation layer 112 ··· Sensor 120 ··· GND wire (negative wire)

Claims

1. Multiple strands of wire for connecting to the sensor are arranged around the core material as a braided wire. In order to prevent current from flowing between the aforementioned strands, an insulating layer is provided on the surface of each strand. A GND wire is placed within the aforementioned core material. All of the aforementioned strands are electrically connected to the GND line. A braided cable equipped with a sensor, characterized by the following features.

2. In claim 1, One sensor is mounted on each of the aforementioned strands. A braided cable equipped with a sensor, characterized by the following features.

3. In claim 2, The aforementioned sensors are mounted at different positions along the longitudinal direction of the cable. A braided cable equipped with a sensor, characterized by the following features.

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