Cooling unit for rotary shaft
专利汇可以提供Cooling unit for rotary shaft专利检索，专利查询，专利分析的服务。并且PURPOSE:To make it possible to carry out the cooling of a rotary shaft excellent to thermal radiation with high efficiency, by surrounding a spindle with thermoelectric elements for absorbing heat from a spindle through a cooling unit with the utilization of Peltier effect. CONSTITUTION:A cooling unit 21 is arranged on the inner peripheral wall of the housing of a spindle bearing, and comprises annular N type tellurized bismuth elements 22 and P type tellurized bismuth elements 23 of the same shape, which are alternately arranged each others, being intervened by resin plates 24. Cylindrical inner and outer steel plates 25, 26 which are alternately partitioned by the resin plates 24, are contacted to the inner peripheral surfaces of the bismuth elements 22 and the outer pripheral surfaces of the bismuth elements 23. These are integrally incorporated together with the use of flanges 27 having low thermal conductivity and low electrical conductivity, and the inner peripheral surface and outer peripheral surfaces thereof are coated with an insulating layer 28 of relatively high-conductive materials such as, for example, ceramic materials.，下面是Cooling unit for rotary shaft专利的具体信息内容。
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