E-textile power module
Devices and techniques for an e-textile power module are described. A battery housing and a battery housing seat are provided. The battery housing seat includes four concentric circles alternating between insulating and conducting materials, a first trace electrically connecting the first inner circle to e-textile wiring through the fabric, a second trace electrically connecting the third inner circle to the e-textile wiring through the fabric, and a magnet. The battery housing includes a conductive ring, an insulating layer with a lumen arranged to permit contact of a first battery terminal of a battery via the lumen and a second lumen of the conductive ring, and a conductive cap. The 4 conductive cap is arranged to engage to the conductive ring to hold the battery against the insulating layer against the conductive ring and electrically connect to a second terminal of the battery when the battery is placed within the battery housing.
1. A battery housing for e-textile systems, the battery housing comprising:
a conductive ring;
an insulating layer with a lumen arranged to permit contact of a first battery terminal of a battery via the lumen and a second lumen of the conductive ring; and
a conductive cap, the conductive cap arranged to:
engage to the conductive ring to hold the battery against the insulating layer against the conductive ring;
electrically connect to the conductive ring; and
electrically connect to a second battery terminal of the battery when the battery is placed within the battery housing.
2. The battery housing of claim 1 , wherein at least one of the conductive ring or the conductive cap includes a magnetic component.
3. The battery housing of claim 1 , further comprising a magnetic component that does not impair electrical connections to the battery of either the conductive ring or the conductive cap.
4. The battery housing of claim 1 wherein the conductive cap and the conductive ring are arranged to hold a button cell battery.
5. The battery housing of claim 4 , wherein the conductive cap is arranged to contact a positive pole of the button battery.
6. The battery housing of claim 1 , wherein the conductive ring and conductive cap are arranged to be repeatedly engaged.
7. A base for a battery housing for e-textile systems, the base comprising:
an insulating outer circle disposed on a first side of a fabric;
a conductive first inner circle placed within the outer circle;
an insulating second inner circle placed within the first inner circle;
a conductive third inner circle placed within the second inner circle;
a first trace electrically connecting the first inner circle to e-textile wiring through the fabric;
a second trace electrically connecting the third inner circle to the e-textile wiring through the fabric; and
a magnet disposed on a second side of the fabric opposite the first side of the fabric.
8. The base of claim 7 , wherein the magnet is permanently bonded to the fabric.
9. The base of claim 8 , wherein the magnet is permanently bonded to the fabric via a sealed pocket.
10. The base of claim 7 , wherein the outer circle includes an adhesive to bond to the first side of the fabric.
11. The base of claim 10 , wherein the adhesive is activated via heat.
12. The base of claim 7 , wherein the first trace is arranged to electrically connect to a positive pole of a battery.
13. The base of claim 7 , wherein the second trace is arranged to electrically connect to a negative pole of a battery.
14. A method for a removable battery housing for e-textile systems, the method comprising:
providing a battery housing seat, the battery housing seat comprising:
an insulating outer circle disposed on a first side of a fabric;
a conductive first inner circle placed within the outer circle;
an insulating second inner circle placed within the first inner circle;
a conductive third inner circle placed within the second inner circle;
a first trace electrically connecting the first inner circle to e-textile wiring through the fabric;
a second trace electrically connecting the third inner circle to the e-textile wiring through the fabric; and
a magnet disposed on a second side of the fabric; and
providing a battery housing, the battery housing comprising:
a conductive ring;
an insulating layer with a lumen arranged to permit contact of a first battery terminal of a battery via the lumen and a second lumen of the conductive ring; and
a conductive cap, the conductive cap arranged to:
engage to the conductive ring to hold the battery against the insulating layer against the conductive ring:
electrically connect to the conductive ring; and
electrically connect to a second terminal of the battery when the battery is placed within the battery housing.
15. The method of claim 14 , comprising binding the magnet to the fabric permanently.
16. The method of claim 15 , wherein binding the magnet to the fabric includes:
placing magnet into pocket; and
sealing the pocket.
17. The method of claim 14 , comprising binding the outer circle to the first side of the fabric with an adhesive.
18. The method of claim 17 , wherein the adhesive is included in a material of the outer circle.
19. The method of claim 18 , wherein the adhesive is activated via heat.
20. The method of claim 14 , wherein the first trace is arranged to electrically connect to a positive pole of a battery.
21. The method of claim 14 , wherein the second trace is arranged to electrically connect to a negative pole of a battery.
22. The method of claim 14 wherein the conductive cap and the conductive ring are arranged to hold a button cell battery.
23. The method of claim 22 , wherein the conductive cap is arranged to contact a positive pole of the button battery.
24. The method of claim 14 , wherein the conductive ring and conductive cap are arranged to be repeatedly engaged.