申请人:EARTH CHEMICAL CO., LTD.
公开号:EP0661907A2
公开(公告)日:1995-07-05
A device body is equipped with a heater unit (3) and a thermal evaporating agent (9) is filled in a tank (6), and a leading end of a core (8) for sucking up the thermal evaporating agent which is inserted is the tank (6) is inserted into the heater unit (3). The heater unit (3) is in an annular shape and is incorporated with a transformerless exothermic body (10). The transformerless exothermic body (10) is a positive temperature thermistor and the voltage-current characteristic thereof has a region, over the range of at least 100V to 240V of applied voltage, which satisfies the conditions ofVx + Iy = a (a is constant) in orthogonal coordinates in which a longitudinal axis is a voltage Vx and a lateral axis is a current Iy. Therefore, even though the applied voltages are 100 V and 240 V, the change of consumed current, P=VI is small and there causes no difference in their exothermic temperatures in the range of the applied voltages of 100 V to 240 V. Thus, even though the applied voltage is 100 V or 240 V, there causes no difference in consuming time of the thermal evaporating agent.
设备本体装有一个加热器单元 (3),热蒸发剂 (9) 填充在一个罐 (6) 中,用于吸起插入罐 (6) 的热蒸发剂的芯子 (8) 的前端插入加热器单元 (3)。加热器单元(3)呈环形,内装一个无变压器放热体(10)。无变压器放热体 (10) 是一个正温热敏电阻,其电压-电流特性在至少 100V 至 240V 的外加电压范围内有一个区域,满足正交坐标中 Vx + Iy = a(a 为常数)的条件,其中纵轴为电压 Vx,横轴为电流 Iy。因此,即使外加电压为 100 V 和 240 V,消耗电流 P=VI 的变化也很小,在 100 V 至 240 V 的外加电压范围内,它们的放热温度没有差别。