MELSS pro­vides new bat­tery test­ing so­lu­tions for EVs

Auto components India - - CONTENTS - Story by: Ramya Srini­vasan ACI

MEL Sys­tems and Ser­vices (MELSS) launched bat­tery test­ing equip­ment, dis­pens­ing ro­bot and con­nec­tion val­i­da­tion sol­der­ing sys­tem in the re­cently- con­cluded Au­to­mo­tive Test­ing Expo 2018 in Chen­nai. Pri­mar­ily, MELSS of­fers bat­tery test­ing equip­ment for elec­tric ve­hi­cles. Some of the test­ing equip­ment are brought from Tai­wan. The com­pany has de­signed and built var­i­ous types of Power Sup­ply ATEs which are built to cater to the test and prod­uct qual­i­fi­ca­tion needs of the var­i­ous power sup­ply de­sign and man­u­fac­tur­ing or­gan­i­sa­tions. As the scope of elec­tric ve­hi­cles are in­creas­ing, the au­to­mo­tive com­pa­nies started fo­cus­ing on the com­po­nents and test­ing so­lu­tions re­quired for the elec­tric ve­hi­cles. MELSS pro­vides test­ing so­lu­tions for bat­tery, XY Dis­pens­ing ro­bot and sol­der­ing sys­tem.

In the bat­tery test­ing process, be­fore the bat­ter­ies are fit­ted into the ve­hi­cle, bat­tery’s in­di­vid­ual mod­ules are tested us­ing the test­ing ma­chine which is im­ported from Chroma, Tai­wan. The ma­chine sim­u­lates the con­di­tion of the bat­tery in var­i­ous pa­ram­e­ters and tests the ef­fi­ciency and mod­ules of the bat­tery with greater ac­cu­racy. MELSS sup­ply a fluid dis­pens­ing so­lu­tion for wher­ever the pre­ci­sion dis­pens­ing is re­quired. The dis­pens­ing ro­bot ma­chine helps in PCB and in en­gine block where it dis­penses the fluid for seal­ing pur­poses. It is used wher­ever high pre­ci­sion and seal­ing re­quired. The Sol­der­ing and Dis­pens­ing So­lu­tions are brought from the brand Met­cal and Te­chon.

The com­pany spokesper­son said that “au­to­mated dis­pens­ing ro­bots are easy to pro­gramme, sim­ple to op­er­ate and com­pat­i­ble with all valve types and con­trollers. Th­ese are de­signed and con­fig­ured specif­i­cally for fluid dis­pens­ing ap­pli­ca­tions. The dis­pens­ing ro­bots of­fers un­sur­passed value in au­to­mated pre­ci­sion fluid dis­pens­ing. It pro­vides to­tal con­trol over fluid place­ment, from beads, arcs and cir­cles to re­peated timed dots.”

Met­cal is the brand that MELSS uses for the con­nec­tion val­i­da­tion sol­der­ing. Met­cal sol­der­ing sta­tions have led the way with SmartHeat tech­nol­ogy. SmartHeat senses the ther­mal load and in­stantly de­liv­ers Power on De­mand di­rectly to the joint. The em­bed­ded, self-reg­u­lat­ing heater de­liv­ers the right amount of power based on the re­quire­ments of the sol­der joint. This pro­vides a fast, safe and re­peat­able process with no cal­i­bra­tion re­quired. The in­ter­metal­lic com­pound thick­ness is crit­i­cal in the for­ma­tion of a sol­der joint. Con­nec­tion Val­i­da­tion (CV) eval­u­ates the qual­ity of the sol­der joint by cal­cu­lat­ing the in­ter­metal­lic com­pound for­ma­tion and pro­vides closed loop feed­back to the op­er­a­tor. CV pro­vides feed­back to the op­er­a­tor via the LED light ring in­te­grated in the hand-piece. It takes the risk as­so­ci­ated with the vari­ables in­volved in the sol­der­ing ac­tiv­ity and re­moves the suc­cess and fail­ure de­ter­mi­na­tion of a good sol­der joint out of the hands of the op­er­a­tor. CV com­ple­ments the skill of the op­er­a­tor to judge the qual­ity of a sol­der joint by in­tro­duc­ing an ob­jec­tive method of eval­u­at­ing sol­der joint qual­ity. This sys­temic and ob­jec­tive ap­proach pro­vides re­peata­bil­ity and a mea­sur­able stan­dard to the sol­der­ing process.

“For iden­ti­fy­ing the man­u­fac­tur­ing process-re­lated de­fects, we have a strong pref­er­ence for in-cir­cuit testers as they pro­vide the high­est pos­si­ble fault de­tec­tion among all the tech­nolo­gies. Mod­ern gen­er­a­tion in-cir­cuit testers in­clude other test tech­nolo­gies as part of testers, like bound­ary scan tests, MDA func­tions etc. Func­tional tester is the gate­keeper that al­lows only fully work­ing boards to be shipped out of an as­sem­bly line. The tester looks at the whole PCB and not at in­di­vid­ual com­po­nents. It sim­u­lates the func­tions of the boards and com­pares it to the ex­pected op­er­a­tion of the board as per the de­sign with al­lowance for mi­nor de­sign vari­a­tions,” he said.

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