Electronic device that includes a composition that can actively generate and release a gaseous oxidizing agent component into an interior space of the electronic device, and related subassemblies and methods
The present disclosure relates to electronic devices that include a composition that actively generates a gaseous oxidizing agent component within the interior gas space of the electronic device. The present disclosure also relates to electronic devices that include a container that includes a gaseous oxidizing agent component in a manner that the gaseous oxidizing component can transfer from the container to the interior gas space of the electronic device. The present disclosure also involves related methods.
1. An electronic device comprising:
a) a housing having an interior gas space;
b) one or more electronic components disposed within the housing;
c) a composition that can actively generate a gaseous oxidizing agent component, wherein the composition comprises at least two reactants that react with each other to generate gaseous oxidizing agent component, and wherein the composition is positioned at a location within the housing;
d) a generating device configured to actively cause the composition to generate the gaseous oxidizing agent component; and
e) a barrier material that separates the composition from the interior gas space and controls the rate of diffusion of the gaseous oxidizing agent component to the interior gas space.
2. The electronic device of claim 1 , wherein the composition comprises a stabilizer that can slow down the generation of the gaseous oxidizing agent.
3. The electronic device of claim 2 , wherein the stabilizer comprises water.
4. The electronic device of claim 3 , wherein the composition comprises a compound chosen from calcium peroxide, magnesium peroxide, barium peroxide, zinc peroxide, cadmium peroxide, strontium peroxide, lithium peroxide, sodium peroxide, potassium peroxide, lithium nickel peroxide, potassium superoxide, sodium percarbonate, potassium percarbonate, calcium percarbonate, magnesium percarbonate, sodium perborate, potassium perborate, calcium perborate, magnesium perborate, potassium permanganate, sodium persulfate, potassium persulfate, and other peroxyhydrate salts such as potassium pyrophosphate peroxyhydrates and sodium sulfate-hydrogen peroxide-sodium chloride adduct, and mixtures thereof.
5. The electronic device of claim 3 , wherein the composition comprises at least zinc peroxide or silver oxide.
6. The electronic device of claim 1 , wherein the barrier material comprises a membrane that is permeable to gaseous oxidizing agent component and permits gaseous oxidizing agent component to transfer to the interior gas space of the housing.
7. The electronic device of claim 6 , wherein the gaseous oxidizing agent component comprises molecular oxygen and the membrane is permeable to molecular oxygen, and wherein the membrane comprises polymer chosen from low density polyethylene (LDPE), high density polyethylene (HDPE), polypropylene (PP), polyvinylidene fluoride (PVDF), polyvinyl alcohol, ethylene vinyl alcohol, nylon, polycarbonate, polyimide, and combinations thereof.
8. The electronic device of claim 6 , wherein the gaseous oxidizing agent component comprises molecular oxygen and the membrane is permeable to molecular oxygen, and wherein the membrane has a molecular oxygen permeation coefficient that increases with temperature.
9. The electronic device of claim 1 , wherein the generating device comprises one or more heating elements in thermal contact with the composition, wherein the one or more heating elements are in electrical communication with a power source that is configured to apply power to the one or more heating elements in an on/off manner according to a predetermined time interval to heat the composition to a temperature that causes the composition to decompose to generate the gaseous oxidizing agent component.
10. The electronic device of claim 9 , wherein the generating device comprises an outer housing having thermal insulation.
11. The electronic device of claim 9 , wherein the one or more heating elements comprise a coil surrounded by the composition.
12. The electronic device of claim 9 , wherein the one or more heating elements are distributed within the composition.
13. The electronic device of claim 12 , wherein the composition comprises at least zinc peroxide or silver oxide.
14. The electronic device of claim 9 , wherein the one or more heating elements comprise a coil having a first end and a second end opposite the first end, wherein the coil comprises electrical power contacts located on the first end.
15. The electronic device of claim 1 , wherein the housing comprises a base, wherein the base comprise a well, and wherein the composition is disposed within the well.
16. The electronic device of claim 15 , wherein the well is positioned under a disc.