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Conductive coating for voice coil welding lead, and voice coil welding lead technology

A technology for welding wires and conductive coatings, applied in conductive coatings and other directions, can solve problems such as the influence of voice coil welding wire performance, influence on tin on copper foil, easy oxidation of copper foil, etc. Condition-free effect

Inactive Publication Date: 2018-12-18
蒋芳万
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process is still relatively cumbersome, and the copper foil used is easy to oxidize. After oxidation, it is not easy to tin and affect the tinning and electrical conductivity of the copper foil, which has a certain impact on the operation performance of the voice coil welding wire.

Method used

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  • Conductive coating for voice coil welding lead, and voice coil welding lead technology
  • Conductive coating for voice coil welding lead, and voice coil welding lead technology

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The conductive coating used for voice coil welding wire of the present embodiment, the preparation method of this conductive coating comprises the following steps:

[0032] 1) Weigh 500 grams of SV glue, 400 grams of conductive silver powder, 50 grams of stabilizer 201P, and 400 grams of methanol, and set aside;

[0033] 2) Under stirring conditions, slowly add SV glue, conductive silver powder, and 201P into methanol successively, and stir thoroughly until a uniform emulsion is formed.

Embodiment 2

[0035] The conductive coating used for voice coil welding wire of the present embodiment, the preparation method of this conductive coating comprises the following steps:

[0036] 1) Weigh 500 grams of epoxy adhesive, 400 grams of conductive copper powder, 40 grams of 201P, and 480 grams of ethanol for subsequent use;

[0037] 2) Under stirring conditions, slowly add epoxy adhesive, conductive copper powder, and 201P into ethanol successively, and stir well until a uniform emulsion is formed.

Embodiment 3

[0039] The conductive coating used for voice coil welding wire of the present embodiment, the preparation method of this conductive coating comprises the following steps:

[0040] 1) Weigh 600 grams of SV glue, 400 grams of conductive silver powder, 50 grams of 201P, and 500 grams of methanol, and set aside;

[0041] 2) Under stirring conditions, slowly add SV glue, conductive silver powder, and 201P into methanol successively, and stir thoroughly until a uniform emulsion is formed.

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PUM

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Abstract

The invention discloses a conductive coating for a voice coil welding lead. The conductive coating for the voice coil welding lead comprises, by weight, 400-600 parts of an adhesive, 300-550 parts ofconductive powder, 40-60 parts of a stabilizer and 300-550 parts of an organic solvent. Above raw materials have synergistic effects, and test verifies that the conductive coating has good electricalconductivity and good adhesion. The conductive coating has the advantages of simple preparation method, strong operability, mild reaction conditions, no pollution, and suitableness for large-scale production. The invention also discloses a voice coil welding lead technology. The technology changes the complicated process of copper foil adhesive paper, facilitates the automatic production of the welding lead, saves the labor cost to a great extent, reduces the weight of the copper foil added to a voice coil due to a thin conductive coating layer, and facilitates the sound quality improvement ofa loudspeaker.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a conductive coating for voice coil welding wires and a process for voice coil welding wires. Background technique [0002] The voice coil is a coil through which audio current passes, and is an important part of the vibration system of an electrodynamic speaker. The performance of the voice coil will affect the sound pressure frequency characteristics, sound pressure level, impedance curve, distortion, transient characteristics, speaker parameters, sound quality, etc. of the speaker, especially the bearing power and life of the speaker. The voice coil includes a voice coil frame, copper wires wound on the voice coil frame and wires connected to the copper wires. The wires need to be welded and fixed during the voice coil assembly process. [0003] The existing voice coil welding wire technology is to use copper foil stickers. The production process of copper foil stickers is: ...

Claims

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Application Information

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IPC IPC(8): C09D5/24
CPCC09D5/24
Inventor 蒋芳万
Owner 蒋芳万
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