CN209198543U

CN209198543U - A kind of FPC Wireless charging coil characteristic resistance value test macro

Info

Publication number: CN209198543U
Application number: CN201821709595.8U
Authority: CN
Inventors: 卢书远
Original assignee: Kinwong Electronic Technology Longchuan Co Ltd
Current assignee: Kinwong Electronic Technology Longchuan Co Ltd
Priority date: 2018-10-22
Filing date: 2018-10-22
Publication date: 2019-08-02
Anticipated expiration: 2028-10-22

Abstract

The utility model discloses a kind of FPC Wireless charging coil characteristic resistance value test macros, are related to flexible circuit board technical field, specifically include the processor being electrically connected to each other, LCR tester, test fixture and display.Pass through whole PNL test characteristic resistance value, and automatically record and analyze data, Manufacturing Worker only need according on display screen display " PASS " or " NG " can determine whether product qualified, no longer need to carry out to analyze and determine whether product is qualified according to the specific data on LCR tester, ten times or more are improved than previous single PCS test method production efficiency, but also the auxiliary material for reducing rear process defective products to a certain extent uses, and has saved cost.

Description

A kind of FPC Wireless charging coil characteristic resistance value test macro

Technical field

The utility model relates to flexible circuit board technical fields, refer in particular to a kind of FPC Wireless charging coil characteristic resistance value Test macro.

Background technique

With the development of wireless charging technology, major cell phone manufacturer increasingly payes attention to wireless charging technology, smart phone Market competition is increasing.The coil production on mobile phone wireless charger generally uses the route design side of FPC currently on the market Formula is made, and is the precise circuit in coiled type.This FPC Wireless charging coil includes WPC (wireless charging), MST (magnetism Safe transmission), the big module of NFC (wireless near field communication) three, characteristic resistance value is respectively divided into two kinds again, one is resistance value (Rs), One is inductance value (Ls), characteristic resistance value influence factor includes thick copper, line width and coil space structure etc..In order to not influence nothing Line charge electrical property, the characteristic resistance value of wireless charging are used as a most important ring in functional control, need in production process stringent Ground control, the characteristic resistance value of customer requirement product need full inspection shipment.

The relatively conventional test method of industry is by using LCR tester+mono- PCS test fixture test method at present It is tested, product full inspection efficiency is lower, is not suitable for producing in enormous quantities, and at present still without more economical, more reliable approach And measure, effectively to solve this problem.

Since three modules of FPC Wireless charging coil have oneself corresponding route, existing survey currently on the market It is one such that the test fixture of examination characteristic resistance value can only test WPC/MST/NFC coil every time, when testing all characteristic resistance values There is following testing scheme: (1) using single test fixture, replace different stitch as needed, a product needs to repeat to survey Examination is three times；(2) three sets of test fixture flow line productions debugged are used.The scheme of two kinds of test products is required to artificial basis LCR tester shows that data judge whether characteristic resistance value meets the requirements, larger to employee's Capability Requirement, and product full inspection is time-consuming Relatively long, inefficiency.

Test fixture currently used in the market generally is single PCS test, and product need to accomplish finished product just and can be carried out test. Based on unstable factors such as copper facing copper thickness uniformity, line width size and route notches, it is underproof that product will appear characteristic resistance value Phenomenon accomplishes that finished product is scrapped again, wastes the auxiliary material of some intermediate process, such as: heat dissipation foam, PET, gummed paper, PI etc., and Processing defective products takes time and effort.

Utility model content

The technical problem to be solved by the utility model is to the measurement of the characteristic resistance value mentioned in background technique.

In order to solve the above-mentioned technical problem, the utility model discloses a kind of tests of FPC Wireless charging coil characteristic resistance value System, including one

Processor, control and data processing for whole system；

LCR tester, LCR tester are electrically connected with the processor, and can be used for hindering FPC Wireless charging coil characteristic Value is tested；

Test fixture, test fixture are electrically connected with the processor, and can be used for placing element to be tested, so as to LCR survey Examination instrument is tested；And

Display, display are electrically connected with the processor, and can be used for showing the test data of LCR tester.

Further, the test fixture includes the lower clamp plate of fixed setting and the upper clamp plate of activity setting, on lower clamp plate It is provided at least one set of test position corresponding with the FPC Wireless charging coil.

Further, test position described in every group respectively includes WPS test position, the test position MST and NFC test position, uses respectively Characteristic resistance value is carried out in wireless charging, magnetic security transmission and the close range wireless communication module to FPC Wireless charging coil Test.

Further, the processor includes PLC chip.

Further, fool proof PIN nail is provided on the lower clamp plate.

Further, the test fixture further includes an outer container, and outer container is fixedly installed, and the lower clamp plate is fixedly installed on On outer container.

Further, the material of the upper clamp plate and lower clamp plate is PVC engineering material.

Further, the thickness of the upper clamp plate and lower clamp plate is respectively 4-8mm.

In the present invention program, a kind of test device of Wireless charging coil characteristic resistance value is devised, is tested by whole PNL special Property resistance value, and automatically record and analyze data, Manufacturing Worker only need according on display screen display " PASS " or " NG " i.e. Can determine whether product is qualified, it is no longer necessary to carry out analyzing and determining whether product is qualified according to the specific data on LCR tester, Ten times or more are improved than previous single PCS test method production efficiency, but also it is bad to reduce rear process to a certain extent The auxiliary material of product uses, and has saved cost.

Detailed description of the invention

The specific structure of the utility model is described in detail with reference to the accompanying drawing

Fig. 1 is the system composition schematic diagram of test macro；

Fig. 2 is the test fixture schematic diagram of test macro；

Fig. 3 is the circuit diagram of system testing；

Fig. 4 is the characteristic resistance value testing weld pad location drawing.

Specific embodiment

For technology contents, the construction feature, the objects and the effects that the utility model is described in detail, below in conjunction with implementation Mode simultaneously cooperates attached drawing to be explained in detail.

In conjunction with Fig. 1, a kind of FPC Wireless charging coil characteristic resistance value test macro is disclosed in one embodiment, it should Test macro specifically includes one

Processor, for the control and data processing of whole system, the processor includes PLC chip；

In conjunction with Fig. 2, the test fixture includes the lower clamp plate 3 of fixed setting and the upper clamp plate 1 of activity setting, lower clamp plate On be provided at least one set of test position corresponding with the FPC Wireless charging coil, FPC plate 2 can be placed in upper clamp plate 1 and lower folder The test of characteristic resistance value is carried out between plate 2.

Preferably, test position described in every group respectively includes WPS test position, the test position MST and NFC test position, is respectively used to The survey of characteristic resistance value is carried out to the wireless charging of FPC Wireless charging coil, magnetic security transmission and close range wireless communication module Examination.1. and 7., can be by bonding pad as shown in figure 4, when actual test, the magnetic security of test FPC Wireless charging coil passes The characteristic resistance value of defeated MST module；2. and 5. the wireless near field communication of FPC Wireless charging coil can be tested by bonding pad The characteristic resistance value of NFC module；6. and 7. also the wireless charging WPC module of FPC Wireless charging coil can be tested by bonding pad Characteristic resistance value.

Preferably, it is provided with fool proof PIN nail 31 on the lower clamp plate, assignment test can be carried out, avoids putting plate fault and making At losing or be unfavorable for testing.The test fixture further includes an outer container 4, and the conducting wire 5 being connected with test fixture, and outer container is solid Fixed setting, and the lower clamp plate is fixedly installed on outer container.In order to allow jig not interfere the characteristic resistance value of Wireless charging coil, institute The material for stating upper clamp plate and lower clamp plate is PVC engineering material.The upper clamp plate and lower clamp plate with a thickness of 4-8mm.

In conjunction with Fig. 3 circuit diagram, when test, when lower clamp plate clamps FPC in test fixture, route is connected, PLC chip starts to transport Make, connect the circuit MST of first PCS, timing 0.3s, processor records the resistance value and inductance value data on LCR tester, can be through Conversion offset is crossed, is then compared with customer requirement value, then shows green over the display in claimed range " PASS " symbol, go beyond the scope interior " NG " symbol being then displayed in red, and the 0.3s time disconnects the circuit MST after, connects first The circuit NFC is connected in the circuit WPC of a PCS, the next circuit disconnection WPC.Then second PCS is completed in first PCS test Above-mentioned test is repeated, until whole PNL plate is completed.In this way, employee can directly show according to display and determine whether when test The underproof product of characteristic resistance value generates, such as if so, finding out the corresponding PCS of serial number shown on display and identifying, so that surveying Examination is more simple and efficient.

It should be noted that herein, up, down, left, right, before and after only represents its relative position without indicating its absolute position It sets.And the above description is only the embodiments of the present invention, therefore it does not limit the scope of the patent of the utility model, all utilizations Equivalent structure or equivalent flow shift made by the utility model specification and accompanying drawing content, is applied directly or indirectly in other Relevant technical field, is also included in the patent protection scope of the utility model.

Claims

1. a kind of FPC Wireless charging coil characteristic resistance value test macro, it is characterised in that: including one

Processor, control and data processing for whole system；

LCR tester, LCR tester are electrically connected with the processor, and can be used for FPC Wireless charging coil characteristic resistance value into Row test；

Test fixture, test fixture are electrically connected with the processor, and can be used for placing element to be tested, so as to LCR tester It is tested；And

2. FPC Wireless charging coil characteristic resistance value test macro as described in claim 1, it is characterised in that: the test is controlled Tool includes the lower clamp plate of fixed setting and the upper clamp plate of activity setting, is provided on lower clamp plate at least one set of wireless with the FPC The corresponding test position of charge coil.

3. FPC Wireless charging coil characteristic resistance value test macro as claimed in claim 2, it is characterised in that: surveyed described in every group Examination position respectively includes WPS test position, the test position MST and NFC test position, is respectively used to the wireless charging to FPC Wireless charging coil Electricity, magnetic security transmission and close range wireless communication module carry out the test of characteristic resistance value.

4. such as the described in any item FPC Wireless charging coil characteristic resistance value test macros of claim 2-3, it is characterised in that: institute Stating processor includes PLC chip.

5. FPC Wireless charging coil characteristic resistance value test macro as claimed in claim 4, it is characterised in that: the lower clamp plate On be provided with fool proof PIN nail.

6. FPC Wireless charging coil characteristic resistance value test macro as claimed in claim 5, it is characterised in that: the test is controlled Tool further includes an outer container, and outer container is fixedly installed, and the lower clamp plate is fixedly installed on outer container.

7. FPC Wireless charging coil characteristic resistance value test macro as claimed in claim 6, it is characterised in that: the upper clamp plate Material with lower clamp plate is PVC engineering material.

8. FPC Wireless charging coil characteristic resistance value test macro as claimed in claim 7, it is characterised in that: the upper clamp plate Thickness with lower clamp plate is respectively 4-8mm.