Serviceable flex circuit for battery module
AssigneeNio Technology (Anhui) Co., Ltd
InventorsAdam H. Ing, Yadunandana Yellambalase
Life of this patent
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Abstract
A battery connector, including a flexible circuit including a first set of electrical circuitry connecting to a plurality of energy storage cells, where the first set of electrical circuitry terminates at a first connection point at the battery connector; a controller including components to control the energy storage cells connected to a second set of electrical circuitry terminating at a second connection point at the battery connector; where the first connection point and the second connection point are electrically connected.
Claims16
A battery connector, comprising:
- a flexible circuit board comprising a first set of wirings connected to a plurality of energy storage cells, wherein the first set of wirings terminates at a first connection point on the flexible circuit board;
- and
- a replaceable circuit board comprising:
- a connector that connects to a controller that controls the plurality of energy storage cells;
- and
- a second set of wirings electrically connected to the connector and terminating at a second connection point on the replaceable circuit board;
- wherein the first connection point on the flexible circuit board and the second connection point on the replaceable circuit board overlap one another and are electrically connected to each other,
- wherein the replaceable circuit board further comprises at least one fuse electrically connected between the connector and the second connection point,
- wherein the first connection point comprises a first solder pad and the second connection point comprises a second solder pad, and wherein the first solder pad and the second solder pad are electrically connected through a soldered connection,
- wherein the second set of wirings is etched from a conductive foil, wherein the board, and wherein the etched conductive foil is adhered to the polymeric substrate by an adhesive.
A method, comprising:
- providing a flexible circuit board comprising a first set of wirings in electrical contact with a plurality of energy storage cells, wherein the first set of wirings terminates at a first connection point on the flexible circuit board;
- positioning a replaceable circuit board comprising a second set of wirings that terminate at a second connection point on the replaceable circuit board in an overlapping relationship with the flexible circuit board, wherein the second set of wirings is electrically connected to a connector that connects to a controller that controls the plurality of energy storage cells;
- and
- electrically connecting the first connection point to the second connection point while the flexible circuit board and the replaceable circuit board are in the overlapping relationship,
- wherein at least one fuse is electrically connected between the second set of wirings and the connector,
- wherein the electrically connecting includes soldering the first connection point to the second connection point,
- wherein the second set of wirings is etched from a conductive foil, wherein the etched conductive foil is supported by a polymeric substrate of the replaceable circuit board and wherein the etched conductive foil is adhered to the polymeric substrate by an adhesive.
A replaceable electrical connector, comprising:
- a first printed circuit board (PCB);
- a connector mounted on the first PCB and that connects to a controller that controls energy storage cells of a vehicle;
- a first set of solder pads on the first PCB;
- a first set of wirings on the first PCB and electrically connected between the first set of solder pads and the connector;
- and
- a set of fuses on the first PCB, each fuse being electrically connected between a respective wiring in the first set of wirings and a respective solder pad in the first set of solder pads, wherein the first set of solder pads are soldered to a second set of solder pads of a second PCB comprising a second set of wirings that are electrically connected to the second set of solder pads and the energy storage cells.
Dependencies are inferred from the claim text.