JPS5813547Y2 - Double braid coated star cut wire - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a star-quad wire, and more specifically, to a double-braided coated star-quad wire with high insulation properties.

When receiving power from a commercial power source, there are many branches between the power supply end and the power reception end, and various loads are connected to these branches, and the noise emitted by these loads and electromagnetic waves arriving from the outside can cause residual sounds in the ultra-audible range. Because the signals are superimposed, it has become a bottleneck in improving the S/N and sound image localization of audio equipment.

Therefore, many attempts have been made to eliminate the noise that enters the equipment from the power supply, such as using parallel cables as power cords and twisting four coated wires called star quad wires. It is common practice to combine these into one and use a braided coating.

However, in conventional star quad wires, this twisting cancels out the noise component superimposed on the current flowing through each independent wire, in other words, to eliminate mutual interference, to strengthen the twisting effect, to strengthen the twisting of the conductors, and to insulate each wire. The material is coated as thinly as possible within the required withstand voltage range, so if a large external force is applied locally due to stellar pull, etc., the coating applied to each conductor will be damaged and short circuits will likely occur. .

The purpose of this invention is to eliminate the above-mentioned drawbacks, and its feature is that a common braided covering is applied to one of the plurality of covered conductors as a pair of conductors, and the other is coated with a common braided covering. A star quad wire is provided in which a pair of covered conductors are twisted together and a common braided covering is applied to the wires to improve the insulation between the pair of conductors.

An embodiment of this invention shown in the drawings will be described in detail below.

Figures 1 and 2 are block diagrams of the double-braided coated star quad wire of this invention. For example, 0.12φ x 224 twisted core wires 1 are coated with silicone rubber to a thickness of 0.5mm.
Two conductor wires 3a and 3b coated with a coating 2 of Two conducting wires 6a and 6b having the same structure as the conducting wire pair 4. are twisted together to form a second conducting wire pair T, and the first button and the second conducting wire pair 4. A second nylon braid 8 is applied to cover the y.

In use, as shown in FIG. 3, each conductor 3a is connected to both ends of a conductor pair 4 composed of conductors 3ay and 3b.

The twisted core wires of 3b are tangent to each other, and each conductor S
6. Connect the twisted core wires of 6b in common.

Therefore, even if a large external force such as a Stella pull stop is applied locally and the sheathing 2 of the twisted core wire 1 is damaged, there is no problem between the same conductor pair, and between the first and second conductor pairs with other conductor pairs or with the external conductor. Because the braid protects the wires, short-circuit accidents between wires do not occur.

Although the embodiments have been described using nylon braid, it is also possible to coat the conductor wire pairs with cotton braid or natural or synthetic rubber.

As mentioned above, this invention applies a braided coating to one set of coated conductors out of a plurality of coated conductors as a pair of conductors, twists them together with the other set of coated conductors, and then applies a common braided coating to them. This improves the insulation between the pair of conductors, making it possible to sufficiently suppress the so-called tearing of the wire, and also prevent short circuits between the wires that would otherwise occur due to damage to the sheathing when a large external force is applied locally, as with conventional star-quad wires. It has the effects of preventing accidents and improving manufacturability.

[Brief explanation of the drawing]

The figures show one embodiment of this invention. Figure 1 is a perspective view of a star quad wire with the coating partially removed, Figure 2 is a simplified diagram of it, and Figure 3 is an electric current during use. FIG. 4 is a sectional view showing a modification of this invention. 1... Core wire, 2... Covering, 3 a + 3 b,
6 a t 6 b... conductor, 4. γ... conductor pair,
5, 8...Nylon braid.

Claims (1)

[Scope of utility model registration request] As a pair of conductors, one set of coated conductors out of a plurality of coated conductors is coated with a braided coat, and the braid coated conductor and the other set of coated conductors are twisted together (and then both coated conductors are twisted together). A double braid coated star quad wire, characterized in that the conductors are coated with a common braid coat to improve insulation between the pair of conductors.