Thin film solar cell inflatable ultraviolet rigidizable deployment hinge
View Patent ↗A flexible inflatable hinge includes curable resin for rigidly positioning panels of solar cells about the hinge in which wrap around contacts and flex circuits are disposed for routing power from the solar cells to the power bus further used for grounding the hinge. An indium tin oxide and magnesium fluoride coating is used to prevent static discharge while being transparent to ultraviolet light that cures the embedded resin after deployment for rigidizing the inflatable hinge.
1. A hinge for positioning a left panel and a right panel, the hinge comprising,
an inflatable bladder for encapsulating an inflation material,
a top film extending between the left and right panels, and
a bottom film extending between the left and right panels, the top film and bottom film are circumferentially disposed about the bladder, the top film having a top circumferential length, the bottom film having a bottom circumferential length, the top and bottom circumferential lengths for angularly positioning the left and right panels as the inflatable bladder is inflated
uncured resin disposed between the top and bottom films, wherein the uncured resin is configured to be cured after deployment of the hinge and by exposure to UV light,
a flex circuit extending from the left panel and around the bladder for electrically routing power from the left panel, wherein the left panel is a solar cell panel comprising a silver contact and a thin film solar cell, wherein the flex circuit comprises a conductor trace connected to the silver contact for routing power from the left panel and around the bladder.
2. The hinge of claim 1 wherein,
the inflation material is a sublimation powder disposed in the bladder for inflating the bladder.
3. The hinge of claim 1 further comprising,
a reflective coating disposed on the bladder for reflective UV light into the uncured resin for curing the uncured resin to rigidize the hinge to secure in position the top and bottom film for permanently securing in position the left and right panels.
4. The hinge of claim 1 further comprising,
a left frame for securing the left panel to the top film and to the bottom film and to the bladder, and
a right frame for securing the right panel to the top film and to the bottom film and to the bladder.
5. The hinge of claim 1 further comprising,
a left frame for supporting the left panel to the top film and to the bottom film and to the bladder,
a left adhesive layer for securing the left frame to the left panel and to the top film and to the bottom film and to the bladder,
a right frame for supporting the right panel to the top film and to the bottom film and to the bladder, and
a right adhesive layer for securing the right frame to the right panel and to the top film and to the bottom film and to the bladder.
6. The hinge of claim 1 further comprising,
a plurality of ground pads disposed on the top and bottom films,
a plurality of extensions comprising conductive traces extending from the flex circuit to the plurality of ground pads, respectively, for distributively grounding the hinge.
7. The hinge of claim 1 further comprising,
a plurality of ground pads disposed on the top and bottom films and disposed on and under the left and right panels, and
a plurality of extensions comprising conductive traces extending from the flex circuit to the plurality of ground pads, respectively, for grounding the hinge.
8. The hinge of claim 1 wherein the sun ejects electrons producing a static electrical charge and the sun emits UV light exposing the hinge to UV light and a static electrical charge, the hinge further comprising,
a coating disposed over the top and bottom films for passing UV light and for conducting a static electrical charge, the coating serving to discharge a static electrical charge accumulating on the coating, the UV light curing the uncured resin to rigidize the hinge to secure in position the top and bottom film for permanently securing in position the left and right panels.
9. The hinge of claim 1 wherein, the sun ejects electrons producing a static electrical charge and the sun emits UV light exposing the hinge to UV light and a static electrical charge and, the hinge further comprising,
a transparent coating disposed over the hinge for passing UV light and for conducting a static electrical charge, the coating comprising indium tin oxide and magnesium fluoride, the transparent coating serving to discharge a static electrical charge accumulating on the transparent coating, the UV light curing the uncured resin to rigidize the hinge to secure in position the top and bottom film for permanently securing in position the left and right panels.
10. The hinge of claim 1 wherein the left panel is a solar cell panel for providing power, the hinge further comprising,
a wrap around contact for electrically connecting the electrical contact and the trace conductor.
11. A hinge for positioning a left panel and a right panel, wherein the sun ejects an electrical charge producing a static electrical charge and the sun emits UV light exposing the hinge to UV light and a static electrical charge, the hinge comprising,
uncured resin,
a top film for encapsulating the uncured resin, the uncured resin being cured by exposure to UV light, the top film having a top circumferential length for defining a position between the left and right panels, wherein the uncured resin is configured to be cured after deployment of the hinge and by exposure to UV light;
a coating disposed over the top film for passing the UV light for curing the uncured resin and for static discharge protection of the top film, the coating serving to discharge a static electrical charge accumulating on the coating, the UV light curing the uncured resin to rigidize the hinge to secure in position the top film for permanently securing in position the left and right panels
a bladder filled with a sublimation powder for expanding the bladder, and
a flex circuit extending from the left panel and around the bladder for electrically routing power from the left panel, the left panel being a solar cell panel comprising a silver contact and a thin film solar cell, the flex circuit comprising a conductor trace connected to the silver contact for routing power from the left panel and around the bladder.
12. The hinge of claim 11 , the hinge further comprising,
a bottom film, the top film and bottom films are circumferentially disposed about the bladder, the bottom film having a bottom circumferential length, the top and bottom circumferential length defining the position between the left and right panels when the bladder has expanded.
13. The hinge of claim 11 , wherein,
the coating comprises indium tin oxide and magnesium fluoride.