CN105703578A

CN105703578A - Tin plating technology of VCM motor coil

Info

Publication number: CN105703578A
Application number: CN201610019174.1A
Authority: CN
Inventors: 肖大放
Original assignee: Tamasec Technology Holding (hK) Co Ltd
Current assignee: Tamasec Technology Holding (hK) Co Ltd
Priority date: 2016-01-12
Filing date: 2016-01-12
Publication date: 2016-06-22
Anticipated expiration: 2036-01-12
Also published as: CN105703578B

Abstract

The invention discloses a tin plating technology of a VCM motor coil. The technology comprises the following steps of (1), selecting low temperature tin, putting the tin in a tin molten pool and heating so that the low temperature tin in the tin pool reaches a molten state; (2) through a winding technology of the VCM motor coil, winding a starting thread end of the VCM motor coil and a finished thread end to a LCP wire column; (3) and then soaking the LCP wire column winded with the VCM motor coil in the tin pool, and carrying out soaking and tin plating on the starting thread end and the finished thread end of the VCM motor coil. In the invention, high automation tin plating can be realized; compared to an existing tin plating technology, production efficiency of the technology in the invention is high, tin plating quality of a product is good, a manual tin plating production process is not needed and the technology is easy to control, and safety of a manual tin plating protection operator can be guaranteed.

Description

A kind of upper process of tin of VCM motor coil

Technical field

The present invention relates to plastics hardware field, particularly to the upper process of tin of a kind of VCM motor coil。

Background technology

Photographic head is as the standard configuration assembly of the consumption electronic products such as mobile phone, panel computer, installed video and monitoring system, and its camera focus and stabilization function are dependent on what the driving of a VCM motor realized。The skeleton of VCM motor generally adopts LCP engineering plastics (or suitable material), then coil winding on LCP skeleton, when kinking, successively initial the end of a thread of coil and stannum on end the end of a thread, to pass into electric current, VCM motor is made effectively to work, initial the end of a thread and the upper stannum method terminating the end of a thread for VCM motor, after current commonly used manual mode Trimeresurus mucrosquamatus (Cantor). melts stannum silk, stannum is covered on terminal, this manual process efficiency is low, the requirement of operator is high, the impact of anthropic factor is easily caused the poor controllability of product quality, intelligence causes high。

Summary of the invention

It is an object of the invention to provide the upper process of tin of a kind of VCM motor coil。

According to an aspect of the present invention, it is provided that the upper process of tin of a kind of VCM motor coil, comprise the steps:

(1) select low temperature stannum to put in stannum molten bath to heat, make the low temperature stannum in stannum pond reach molten condition；

(2) by the winding process of VCM motor coil, initial the end of a thread of VCM motor coil is wound on LCP terminal with terminating the end of a thread；

(3) then directly the LCP terminal being wound with VCM motor coil being dipped into Xi Chizhong, initial the end of a thread and end the end of a thread to VCM motor coil soak upper stannum。

Further, the low temperature stannum selected in step (1) is 100% pure tin, and its melting temperature is between 230 DEG C～250 DEG C。

Further, described in。Stannum bath temperature is between 290 DEG C～310 DEG C

Further, copper powder is added while low temperature stannum is put into stannum molten bath by described step (1)。

Further, the quality of described copper powder accounts for the 0.5%～1% of low temperature stannum gross mass。

Further, the quality of described copper powder accounts for the 0.7% of low temperature stannum gross mass。

Further, described thickness of insulating layer and the class of insulation needing to detect the copper cash of VCM motor coil before step (2), if insulating barrier is thicker or the class of insulation is higher, need copper cash is carried out the pre-skinning operations of laser。

Further, in described step (3), LCP terminal is being dipped into Xi Chiqian, it is necessary to initial the end of a thread and the end the end of a thread snearing scaling powder to VCM motor coil。

Further, in described step (3) initial the end of a thread of VCM motor coil and terminate the end of a thread soak time less than 5 seconds。

Further, in described step (3), LCP terminal is being dipped into Xi Chiqian, by initial the end of a thread by arranging metallic plate and is terminating other of the end of a thread and coil and be partially isolate, convenient to initial the end of a thread with the upper stannum terminating the end of a thread。

The invention have the benefit that the present invention adopts LCP skeleton as terminal, raw material using pure tin as stannum molten bath, VCM motor coil-winding and by initial the end of a thread of coil with terminate after the end of a thread is completely wound on LCP terminal, directly LCP terminal is carried out wicking, so can complete upper process of tin to VCM motor coil-winding and by initial the end of a thread of coil, the present invention realizes stannum in high automatization, compared with existing upper process of tin, the production efficiency of the present invention is higher, the upper stannum quality of product is high, no longer need to be more easily controlled with in artificial upper stannum production process, and the safety of artificial upper stannum protection operator can be removed from。

Detailed description of the invention

The upper process of tin of a kind of VCM motor coil that the present embodiment provides, comprises the steps:

(1) the low temperature stannum selected is 100% pure tin, the melting temperature adopting this pure tin controls between 230 DEG C～250 DEG C, take up the ball pure tin and put into heating in stannum molten bath, the temperature in stannum molten bath controls between 290 DEG C～310 DEG C, the low temperature stannum in stannum pond is made to reach molten condition, in order to make up initial the end of a thread of VCM motor coil and the loss terminating the copper that the end of a thread occurs in wicking process because temperature is too high, add copper powder in stannum molten bath and also can put into copper powder while pure tin puts into stannum molten bath, the quality of copper powder accounts for the 0.5%～1% of low temperature stannum gross mass in the present embodiment, namely it is can be adjusted according to actual loss situation, quality such as copper powder can account for the 0.5% of low temperature stannum gross mass, 0.6%, 0.7%, 0.8% or 1%；

(2) thickness of insulating layer and the class of insulation of the copper cash of VCM motor coil are first detected, if insulating barrier is thicker or the class of insulation is higher, need copper cash is carried out the pre-skinning operations of laser, if in like manner insulating barrier is relatively thin or when the class of insulation is relatively low, being made without laser skinning operations, initial the end of a thread of VCM motor coil is wound on LCP terminal by the winding process again through VCM motor coil with terminating the end of a thread；

(3) need the initial the end of a thread to VCM motor coil and terminate the end of a thread snearing scaling powder, snearing scaling powder has been to increase copper cash the ability of attached stannum, then directly the LCP terminal being wound with VCM motor coil is dipped into Xi Chizhong, initial the end of a thread and end the end of a thread to VCM motor coil soak upper stannum, and wherein the soak time of initial the end of a thread of VCM motor coil and end the end of a thread was less than 5 seconds

In these more external preferred modes, LCP terminal is being dipped into Xi Chiqian by described step (3), by arranging metallic plate for by initial the end of a thread with terminate other of the end of a thread and coil and be partially isolate, convenient to initial the end of a thread with the upper stannum terminating the end of a thread。

Finally should be noted that; above example is only in order to illustrate technical scheme; but not limiting the scope of the invention; although having made to explain to the present invention with reference to preferred embodiment; it will be understood by those within the art that; technical scheme can be modified or equivalent replacement, without deviating from the spirit and scope of technical solution of the present invention。

Claims

1. the upper process of tin of a VCM motor coil, it is characterised in that comprise the steps:

2. the upper process of tin of VCM motor coil according to claim 1, it is characterised in that the low temperature stannum selected in step (1) is 100% pure tin, and its melting temperature is between 230 DEG C～250 DEG C。

3. the upper process of tin of VCM motor coil according to claim 1, it is characterised in that described stannum bath temperature is between 290 DEG C～310 DEG C。

4. the upper process of tin of VCM motor coil according to claim 1, it is characterised in that add copper powder while low temperature stannum is put in described step (1) stannum molten bath。

5. the upper process of tin of VCM motor coil according to claim 4, it is characterised in that the quality of described copper powder accounts for the 0.5%～1% of low temperature stannum gross mass。

6. the upper process of tin of VCM motor coil according to claim 5, it is characterised in that the quality of described copper powder accounts for the 0.7% of low temperature stannum gross mass。

7. the upper process of tin of VCM motor coil according to claim 1, it is characterized in that, the thickness of insulating layer of the described copper cash needing detection VCM motor coil before step (2) and the class of insulation, if insulating barrier is thicker or the class of insulation is higher, need copper cash is carried out the pre-skinning operations of laser。

8. the upper process of tin of VCM motor coil according to claim 1, it is characterised in that in described step (3), is being dipped into Xi Chiqian by LCP terminal, it is necessary to initial the end of a thread and the end the end of a thread snearing scaling powder to VCM motor coil。

9. the upper process of tin of VCM motor coil according to claim 1, it is characterised in that in described step (3), the soak time of initial the end of a thread of VCM motor coil and end the end of a thread was less than 5 seconds。

10. the upper process of tin of VCM motor coil according to claim 1, it is characterized in that, in described step (3), LCP terminal is being dipped into Xi Chiqian, by initial the end of a thread by arranging metallic plate and terminate other of the end of a thread and coil and be partially isolate, convenient to initial the end of a thread with the upper stannum terminating the end of a thread。