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1. 发明专利

NZ518611A Automatic diaper wetness warning device 未知
公开(公告)号：NZ518611A
公开(公告)日：2003-04-29
申请号：NZ51861102
申请日：2002-04-29
申请人： CHIAO HENG HUANG
发明人： CHEN CHIN-CHEN , CHEN HONG-LIN , CHEN HONG-MING , CHEN YI-RAN , CHEN HONG-CHIH
IPC分类号： A61F13/42 , G08B21/20
摘要： A diaper includes an outer water impermeable layer, an inner sheet of the water permeable film and several water absorbing layers between the outer and inner sheets. First and second electrical conductors 22, each of which have separate first and second ends, are positioned in the water absorbing layers with the second ends of the conductors being positioned in the water absorbing layers and the first end of the conductors being extended to a plug unit 221 on the outer side of the outer water impermeable layer. The plug unit plugs into a connector unit 213 on a control circuit board 211 attachable to the outside of the diaper and when urine is present in the water absorbing layers adjacent the first and second conductors the resistance between the conductors decreases as water or urine wets the paper insulation around the conductors, which causes a signal transmitter 21 on the control circuit board to transmit a signal to be received by a remote receiver which produces a warning signal that the diaper is wet. A battery powers the signal transmitter and so as not to unduly waste battery power, power to the signal transmitter is cut off within a predetermined period after the transmission of the wetness-indicating signal from the transmitter.

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