Disclosed is an icemaker for a refrigerator includes an ice mold for receiving water and freezing the water to ice, an ejector pivotally installed on the ice mold to eject the ice out of the ice mold, a motor for operating the ejector, a heater body disposed enclosing the ice mold to separate the ic
Disclosed is an icemaker for a refrigerator includes an ice mold for receiving water and freezing the water to ice, an ejector pivotally installed on the ice mold to eject the ice out of the ice mold, a motor for operating the ejector, a heater body disposed enclosing the ice mold to separate the ice from an inner surface of the ice mold by uniformly heating the ice mold, and a heating coil for applying induced electromotive power to the heater body, thereby allowing the heater body to generate heat.
대표청구항▼
What is claimed is: 1. An icemaker for a refrigerator, comprising: an ice mold that receives water and is configured to freeze the water to form ice; an ejector pivotally installed on the ice mold and having an extension protrusion to eject the ice out of the ice mold; a motor that operates the eje
What is claimed is: 1. An icemaker for a refrigerator, comprising: an ice mold that receives water and is configured to freeze the water to form ice; an ejector pivotally installed on the ice mold and having an extension protrusion to eject the ice out of the ice mold; a motor that operates the ejector; and a heater comprising: a generally circular arc shape heater body having a constant curvature extending in a circumferential direction of the heater body, the heater body comprising metal and provided at a circumferential outer bottom surface of the ice mold, the heater body uniformly heating the ice mold to separate the ice from an inner surface of the ice mold, wherein the heater body has a generally uniform thickness in a radial direction of the heater body and heat is uniformly generated through generally an entire area of the heater body; and a heating coil that applies induced electromotive power to the heater body, thereby allowing the heater body to generate heat, and the heating coil comprising lines uniformly spaced throughout the entire circumferential direction of the heater body. 2. The icemaker according to claim 1, wherein the heating coil is embedded in the heater body. 3. The icemaker according to claim 1, wherein the heating coil is formed in a predetermined pattern having lines spaced from each other at a predetermined distance. 4. The icemaker according to claim 1, wherein the heater body surface-contacts the ice mold. 5. The icemaker according to claim 1, wherein the heating coil is formed on a surface of the ice mold. 6. The icemaker according to claim 1, wherein the heater body consists essentially of metal. 7. An icemaker for a refrigerator, comprising: an ice mold that receives water and is configured to freeze the water to form ice; a heater comprising metal, wherein the heater is configured to uniformly heat an outer circumferential bottom surface of the ice mold proximate an area where the ice contacts the inner surface of the ice mold, wherein the heater is configured to perform induction heating by an induced electromotive power applied from an external side, wherein the heater has a generally circular arc shape and a generally uniform thickness in a radial direction of the heater such that heat is generated uniformly though generally an entire area of the heater and is provided on an outer surface of the ice mold, and wherein the heater has a constant curvature extending in a circumferential direction of the heater; and a heating coil comprising lines uniformly spaced throughout the entire circumferential direction of the heater. 8. The icemaker according to claim 7, wherein the heater surface-contacts the ice mold at a surface having the same shape. 9. The icemaker according to claim 7, wherein the heater comprises: a heater body that generates heat; and the heating coil embedded in the heater body to apply induced electromotive power to the heater body. 10. The icemaker according to claim 7, wherein the heater comprises: a heater body formed corresponding to the outer surface of the ice mold to surface-contact the outer surface of the ice-mold, the heater body uniformly generating heat through an entire area of the heater body; and the heating coil that applies induced electromotive power to the heater body. 11. The icemaker according to claim 7, wherein the ice mold is formed of conductive material. 12. The icemaker according to claim 7, wherein the heater comprises: a conductive heater body; and the heating coil comprises an induction heating coil for applying induced electromotive power to the heater body. 13. An icemaker for a refrigerator, comprising: an ice mold that receives water and is configured to freeze the water to form ice; a heater comprising metal, wherein the heater is configured to separate the ice from an inner surface of the ice mold, the heater uniformly heating an entire surface of the ice mold by using induction heating, wherein the heater has a generally circular arc shape and a generally uniform thickness in a radial direction of the heater such that heat is generated uniformly through generally an entire area of the heater and is provided on an outer surface of the ice mold, and wherein the heater has a constant curvature extending in a circumferential direction of the heater; and a heating coil comprising lines uniformly spaced throughout the entire circumferential direction of the heater. 14. The icemaker according to claim 13, wherein the heater comprises: the heater body disposed on a side of the ice mold; and an induction heating coil disposed adjacent to the heater body to apply induced electromotive power to the heater body. 15. The icemaker according to claim 13, wherein the heater comprises an induction heating coil. 16. The icemaker according to claim 13, wherein the ice mold is formed of metal. 17. The icemaker according to claim 13, wherein the heater comprises: the heater body disposed on a side of the ice mold; and an induction heating coil embedded in the heater body to apply induced electromotive power to the heater body.
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