An ice maker having an ice tray horizontally suspended within a housing and a drive body rotatably coupled to a transverse axis of the ice tray and configured to oscillate the ice tray about the transverse axis. The cold side of a thermoelectric device is thermally coupled with a bottom surface of t
An ice maker having an ice tray horizontally suspended within a housing and a drive body rotatably coupled to a transverse axis of the ice tray and configured to oscillate the ice tray about the transverse axis. The cold side of a thermoelectric device is thermally coupled with a bottom surface of the ice tray, and a hot side opposes the cold side. A barrier extends around the periphery of the ice tray within the housing, and separates the housing into a first chamber and a second air chamber. A heat sink is thermally coupled with the hot side of the thermoelectric device and extends into the second air chamber. An intake duct member is coupled with the housing proximate the second air chamber, and is configured to dispense a cold air flow over the heat sink. The barrier restricts the cold air flow from entering the first chamber.
대표청구항▼
1. An ice maker comprising: an ice tray;a drive body coupled to a transverse axis of the ice tray, wherein the drive body operates to at least oscillate the ice tray about the transverse axis between first and second positions;a thermoelectric device that has a cold side thermally coupled with a bot
1. An ice maker comprising: an ice tray;a drive body coupled to a transverse axis of the ice tray, wherein the drive body operates to at least oscillate the ice tray about the transverse axis between first and second positions;a thermoelectric device that has a cold side thermally coupled with a bottom surface of the ice tray to freeze water retained therein and a hot side opposing the cold side;a barrier surrounding a portion of the ice tray to define first and second air chambers proximate the ice tray;a heat sink thermally coupled with the hot side of the thermoelectric device and extending within the second air chamber;an intake duct member positioned proximate the second air chamber, wherein the intake duct member is configured to dispense a cold air flow over the heat sink, and wherein the barrier is configured to restrict the cold air flow from entering the first air chamber;a shroud member spanning beneath the heat sink;an exhaust duct member disposed proximate the second air chamber for receiving the cold air flow, wherein the intake duct member includes a vent opening that has an edge portion abutting the shroud member, and wherein the shroud member includes an air passage in slidable engagement with the vent opening when the ice tray oscillates at least between the first and second positions, the air passage aligning with an upper section of the vent opening in the first position and aligning with a lower section of the vent opening in the second position. 2. The ice maker of claim 1, wherein the shroud member maintains contact with the barrier to restrict the cold air flow from entering the first air chamber when the ice tray oscillates. 3. The ice maker of claim 1, wherein the drive body is configured to rotate the ice tray to a harvest position having at least a portion of the heat sink rotated into the first air chamber. 4. The ice maker of claim 1, wherein the thermoelectric device is a Peltier-type cooler, and wherein the first air chamber has an air temperature warmer than the second air chamber. 5. An ice maker for an appliance comprising: an ice tray suspended within a housing and having a plurality of water wells disposed along a transverse axis of the ice tray;a drive body rotatably coupled to the ice tray that rotates the ice tray about the transverse axis between first and second positions;a thermoelectric plate that has a cold side thermally coupled with a bottom surface of the ice tray to freeze water retained in the water wells and a hot side opposing the cold side;a heat sink thermally coupled with the hot side of the thermoelectric plate, the heat sink including a plurality of metal fins extending from the hot side of the thermoelectric plate;a shroud member that abuts the housing about a periphery of the ice tray to define a first air chamber above the ice tray and a second air chamber below the ice tray, and wherein the shroud member is configured to restrict cold air flow in the second air chamber from entering the first air chamber; andan intake duct member coupled with the housing proximate the second air chamber and having a vent opening, wherein the intake duct member is configured to dispense the cold air flow over the heat sink, and wherein the shroud member includes an air passage that aligns with the vent opening as the drive body operates to define the first position, wherein the air passage aligns with an upper section of the vent opening, and the second position, wherein the air passage aligns with a lower section of the vent opening. 6. The ice maker of claim 5, further comprising: an exhaust duct member coupled with the housing proximate the second air chamber, wherein the exhaust duct member receives the cold air flow after it flows over the heat sink. 7. The ice maker of claim 6, further comprising: a barrier extending from the housing to abut the shroud member along opposing longitudinal edges of the ice tray, wherein the shroud member is shaped to maintain contact with the barrier as the ice tray operates between the first and second positions. 8. The ice maker of claim 7, wherein the shroud member includes a curved exterior surface radially spaced from the transverse axis of the ice tray. 9. The ice maker of claim 5, wherein the drive body includes a harvest motor that selectively rotates the ice tray to a harvest position having at least a portion of the heat sink rotated into the first air chamber, and wherein the ice tray is configured to release ice in the water wells in the harvest position. 10. An ice maker for an appliance comprising: an ice tray disposed within a housing;a shroud that at least partially surrounds the ice tray;a thermoelectric conductor in thermal communication with a bottom surface of the ice tray and a heat sink, wherein the bottom surface of the ice tray defines a cold side and the heat sink defines a hot side that opposes the cold side;a barrier extending from the housing and abutting longitudinal edge portions of the ice tray to define first and second air chambers;an intake duct member coupled with the housing proximate the second air chamber, wherein the intake duct member is configured to dispense a cold air flow over the heat sink, and wherein the first air chamber includes warmer air than the second air chamber to form at least one clear ice piece in the ice tray, and wherein the shroud includes an air passage that aligns with a vent opening of the intake duct member as the ice tray and shroud oscillate between a first position, wherein the air passage aligns with an upper section of the vent opening, and a second position, wherein the air passage aligns with a lower section of the vent opening. 11. The ice maker of claim 10, further comprising: an exhaust duct member coupled with the housing proximate the second air chamber, and wherein the exhaust duct member receives the cold air flow after it flows over the heat sink. 12. The ice maker of claim 10, wherein the housing is positioned on a door of the appliance enclosing at least a portion of a refrigerator compartment of the appliance. 13. The ice maker of claim 10, wherein the first air chamber has an air temperature at least 10 degrees F. warmer than the second air chamber.
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