System for high density testing of batteries within an environmental test chamber
The All Test Platform (ATP) provides provides a safe and easy way to test batteries within an environmental test chamber. The ATP enables rapid changing of batteries and battery types between tests, and provides the highest density per square foot of environmental test chamber space available for battery testing. The ATP combines multiple components critical for battery testing into a configurable, scalable, safe, and high density battery testing platform.
1. A battery test platform system for insertion into an environmental test chamber and connection to an external system powering and monitoring batteries during test, the system comprising:
a frame having two side walls, a bottom wall, and a side wall gap in one of the side walls allowing environmental conditions from the environmental test chamber to flow properly through the battery test platform system;
eight frame rails attached to the side walls;
four carriers, each carrier connecting to two frame rails to slide in and out of the frame;
two non-conductive shelves inserted into each carrier, wherein each non-conductive shelf:
is made of FR4 glass epoxy;
contains four hundred and sixty holes, each hole having a diameter of three hundred and seventy millimeters; and
has a very tight flatness tolerance;
sixteen flexible cable carriers, positioned with one flexible cable carrier under each shelf, wherein each flexible cable carrier is a chained track such that a flex region of the chained track changes as the carrier is slid in or out of the frame, maintaining wiring positions of any wiring guided through the track;
four battery interface boards (ABIBs) inserted one per carrier between the two non-conductive shelves in each carrier; and
wiring guided through each of the flexible cable carriers such that each flexible cable carrier guides a wiring bundle connected from one end of the ABIB on the carrier above the flexible cable carrier to exiting the battery test platform system, wherein the wiring bundle includes wiring for a Force+, a Force−, a Sense+, and a Sense− connection per battery being tested on the shelf above the flexible cable carrier;
wherein each ABIB is swappable to change the type of battery being tested, and has connections to test up to sixteen batteries (eight per shelf), and includes one of the following: spring-loaded terminal clips for connection to cell batteries; coin cell connectors for connection to coin cell batteries; cylindrical cell battery holders with connectors for connection to AAA, AA, C, D, 18650, or 21700 batteries; and connectors for flex cable connectors to connect to pack batteries.