JPH01268399A - Copper foil filament wire for speaker - Google Patents

Abstract

PURPOSE:To eliminate the generation of an abnormal sound and to improve a disconnection problem by braiding a solid wire on which having a metal solid wire in the center and a copper foil is wound to a core filament and constituting to improve a rigidity and easily maintain a form and improve a rope jump phenomenon. CONSTITUTION:The copper foil 2 is wound on the external periphery of the core filament 1 of a chemical fiber yarn (composed of aromatic polyamide fiber) having a cotton yarn or a heat resistance characteristic to constitute the solid wire 3, the metal solid wire 4, for instance a copper round wire is placed in the center part, the plural solid wires 3 on which the copper foil 2 is wound on the external periphery of the core filament 1 are braided and twisted to constitute the copper foil filament wire. Since the metal solid wire is provided in the center, the form is freely designed to improve the rope jumping phenomenon in an input impressing speaker, and obtain a good sound quality having no abnormal sound.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a copper foil thread wire for speakers used as lead wires for various speakers.

BACKGROUND OF THE INVENTION Conventional copper foil wires for speakers of this type are constructed by braiding a plurality of copper foils 7 around a core thread 8 and twisting them together, as shown in Fig. 3. I was laughing.

Problems to be Solved by the Invention With this configuration, since the copper foil wire is very flexible, the high input required for speakers in recent years causes the copper foil wire to jump. The thread itself may generate abnormal noise such as a clicking sound, or the diaphragm or other vibration system (
When the copper foil wire comes into contact with the damper, a disconnection problem may occur at the joint fulcrum part (the soldered part with the terminal board) of the copper foil thread wire.

The present invention aims to provide a copper foil thread wire for speakers that can solve this problem.

Means for Solving the Problems The present invention has a structure in which a single metal wire is provided in the center and a single wire with copper foil wrapped around the core yarn is braided.

In order to improve the corrosion resistance, tin-plated copper foil or wax can be applied to the copper foil thread.

Effects The above structure has better rigidity than conventional copper foil threads, makes it easier to maintain its shape, improves the skipping phenomenon, and prevents abnormal noise and disconnection problems in copper foil threads for high-input speakers. It can be improved.

Example Hereinafter, an embodiment of the present invention will be explained with reference to FIG.

A single wire 3 is constructed by wrapping a copper foil 2 around the outer periphery of a core thread 1 of a wire thread or a heat-resistant chemical fiber thread (thread made of aromatic polyamide fiber). A single wire 3 in which a metal single wire 4, for example, a round copper wire is positioned in the center, and a copper foil 2 is wrapped around the outer periphery of the core yarn 1.
Copper foil wire is made by braiding and twisting multiple strands.

In order to improve the corrosion resistance, as shown in Fig. 2, a solid wire 3 in which a tin-plated copper foil 6 is wrapped around the outer circumference of a core thread 1, and a solid wire 3 in which a copper foil 2 is wrapped around the core thread 1 are coated with gold thread. The copper foil thread wire is constructed by braiding or twisting a plurality of single wires 4 to form a copper foil thread element wire, and applying wax 6 having a melting point of 75°C to 85°C on the surface of the copper foil thread element wire. .

This wax 6 is melted at a temperature of 120 DEG C. to 150" C. and is applied by dipping the copper foil wire into it.

The adhesive effect of the wax itself can improve the strength of the copper foil thread itself, and in addition, it has an effect on moisture resistance and corrosion resistance. The tin-plated copper foil 5 has better corrosion resistance than the copper foil 2. Since the copper foil thread wire of the present invention has the single metal wire 4 in the center, it can be freely formed into any shape, and the jump rope phenomenon can be improved. A similar effect can be obtained by using a plurality of single metal wires 3, but since the copper foil thread wire requires a certain degree of flexibility, it is not suitable for thick wires or highly rigid metals.

Effects of the Invention As described above, the copper foil wire for speakers of the present invention has extremely excellent properties in terms of corrosion resistance and corrosion resistance due to its structure, and is suitable for use in hot spring areas, crowded factory areas, etc. It has sufficient resistance to sulfur gas, has good solderability, and even in speakers for applying large inputs, the skipping phenomenon has been improved, and good sound quality without abnormal sounds can be obtained, making it a dog of industrial value. be.

[Brief explanation of the drawing]

1 and 2 are cross-sectional views showing examples of the copper foil wire according to the present invention, and FIG. 3 is a cross-sectional view of a conventional copper foil wire. 1... Core thread, 2... Copper foil, 3...
...Single wire, 4...Single metal wire, 6...Tin plated copper foil, 6...Wax 0 Agent's name: Patent attorney Toshio Nakao and 1 other fs
l Figure 2! Figure 3

Claims (3)

[Claims] (1) A copper foil thread wire for speakers, which has a single metal wire in the center and is made by braiding a single wire with copper foil wrapped around the core thread. (2) A copper foil thread wire for speakers, which has a metal single wire in the center and is braided with a single wire with copper foil wrapped around the core thread and a single wire with tin-plated copper foil wrapped around the core thread. (3) The copper foil thread wire for a speaker according to claim 1 or 2, wherein the surface is coated with wax.