发明名称 |
Ice maker harvest control and method |
摘要 |
The present invention comprises an ice harvest system for use in an ice maker. The ice maker herein includes a refrigeration system for cooling of an evaporator. Ice is formed thereon as water is pumped by a re-circulating pump to flow from a water distribution tube over the evaporator surface. Water that is not immediately frozen thereon flows into a water pan positioned there below. A pressure fitting is positioned in the pan at the bottom thereof and connected to a pneumatic tube. The pneumatic tube is connected to a pressure sensor located on a control board at a position remote from the water pan. Pressure is communicated through the tube to the pressure sensor as a function of the depth of the water in the pan. This pressure is converted by a microprocessor of the control board for interpretation as a water level in the pan. As the water level in the tray lowers due to the formation of ice, the pressure transmitted to the pressure sensor reduces from a predetermined high or full water level. A harvest point occurs which corresponds to the sensing of a predetermined low water level/low pressure point indicating sufficient ice has formed on the evaporator.
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申请公布号 |
US6705090(B2) |
申请公布日期 |
2004.03.16 |
申请号 |
US20020123623 |
申请日期 |
2002.04.15 |
申请人 |
IMI CORNELIUS INC. |
发明人 |
BILLMAN GREGORY M.;WILEY, JR. DONALD E.;ELSOM KYLE B. |
分类号 |
F25C1/12;F25C5/10;(IPC1-7):F25C1/00 |
主分类号 |
F25C1/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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