Patent ID: 7944675

Claim:
A negative ion generating device comprising: a housing for being disposed into a water containing device and including a lower housing member and an upper housing member for forming a chamber in said housing, and including a plurality of passages formed in said housing for allowing water to flow into and out of said chamber of said housing, and includes a plurality of sockets disposed in said lower housing member, a plurality of first electrically conductive boards engaged with said sockets of said housing and electrically coupled to negative electricity, a plurality of second electrically conductive boards engaged with said sockets of said housing and disposed alternatively with said first electrically conductive boards and electrically coupled to positive electricity, and said first and said second electrically conductive boards being provided for generating an electromagnetic field in the water, a copper plate disposed in said chamber of said housing and separated from said first and said second electrically conductive boards and disposed above said first and said second electrically conductive boards for attracting and removing positive ions and for generating negative ions, and a control device including a receptacle, a processor device disposed in said receptacle and electrically coupled to said first and said second electrically conductive boards for receiving signals from said first and said second electrically conductive boards, and including a transforming circuit for electrically coupling to an electric power source and for receiving an electric energy from said electric power source, and including a plurality of switches provided in said receptacle for controlling said processor device and said first and said second electrically conductive boards, and including a displayer for displaying an information of said negative ion generating device.