| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a minus ion generator capable of generating ozone together with minus ions. <P>SOLUTION: A minus ion generator 1 comprises: a discharge electrode 2 including a body part 2a having a round rod shape, and a conical part 2b having a sharp tip part 2c at one end of the body part; a ring electrode 3; a shield cover 4; a direct-current high voltage generating circuit 5; a variable resistor 6; and a power source 7. The ring electrode 3 is concentrically arranged in parallel to the discharge electrode 2. The direct-current high voltage generating circuit 5 is connected to the power source 7, to covert an output of the power source 7 into a direct-current high voltage. A positive electrode of the direct-current high voltage generating circuit 5 is connected to the ring electrode 3, and a negative electrode is connected to the discharge electrode 2, to provide high potential to the negative electrode and output the direct-current high voltage so that the positive electrode has a zero potential. When the high potential is provided to the discharge electrode 2, electrons are emitted from the tip part 2c by electron radiation to generate the minus ions. Corona discharge is generated between the body part 2a and the ring electrode 3, to generate ozone. <P>COPYRIGHT: (C)2013,JPO&INPIT |
