CN2264910Y - Humidity-sensitive warning device - Google Patents

Abstract

The utility model relates to a humidity sensing warning device, which can be called a 'urine knowing device'. The utility model is composed of two humidity sensing contact terminals of a bare wire, a control circuit which is formed by connecting a current collecting block 783153 and a triode and a sound emitting loudspeaker. When the utility model is used, the humidity sensing contact terminals are placed under a diaper, when the diaper is wet, the sound emitting loudspeaker emits music to inform nursing personnel to replace the diaper, and the utility model has the advantages of convenient use, favorable practicability and high safety.

Description

A kind of sense warning device that wets

The utility model relates to household electrical appliance, particularly a kind of family expenses warning device with the wet warning effect of sense.

The infant lacks ability of language expression, and nursery work is very difficult, and especially more changing babies' napkin makes the paramedic and does all having a headache very much of father and mother.Ewborn infant particularly, its resistibility is more weak, and skin infects easily, and diaper should in time be changed once wet, is not easy but will find in time that the infant urinates to wet to settle.

Purpose of the present invention will provide a kind of exactly can report at the right time that bady's diaper is wet, need replacing in time electric device.

For finishing the wet warning device of sense that goal of the invention has designed a kind of " urine sensor " by name, this device is by the wet contact of sense, control circuit, warning device and low-voltage safety power supply are formed, the wet contact of sense is two bare conductor heads that place on the tested diaper, control circuit is by integrated package 786153, triode G forms, the pin 4 of integrated package 786153, pin 5 and two bare conductor contacts join, pin 2 meets the base stage B of triode G, pin 1 connects the emitter e of triode G, the playback loudspeaker Ω that warning device joins for the pin 4 with the collector e of triode G and integrated package 786153, the low-voltage safety power supply positive pole connects the pin 4 of integrated package 786153, and negative pole connects the pin 1 of integrated package 786153 and the emitter of triode G.

During use, two bare conductor contacts are placed under the diaper, two contacts are at a distance of 10 centimetres, and diaper one is wet, its resistance value reduces to 300K when following, control circuit conducting work, and warning horn playback loudspeaker just send musical sound, notify the paramedic changing babies' napkin more in time, both convenient and practical, safe and reliable again.

Embodiment describes the utility model below in conjunction with accompanying drawing.

Fig. 1 is the utility model embodiment " urine sensor " electrical schematic diagram.

As shown in Figure 1, plug 2 with two bare conductor contacts 1 is plugged in the socket 3, join with pin 3, the pin 4 of integrated package 786153, the collector C of triode G meets playback loudspeaker Ω, the base stage B of triode G connects the pin 2 of integrated package 786153, the pin 1 of integrated package 786153 joins with the emitter e of triode G and connects the negative pole of 1.5 volts of battery E, and K is a switch.The wet warning device of whole sense can be produced in the toy for children.

Claims (1)

1. A kind of sense warning device that wets, form by the wet contact of sense, control circuit, warning device and low-voltage safety power supply, it is characterized in that said control circuit is by integrated package 786153, triode G forms, the pin 4 of integrated package 786153, pin 3 join with the wet contact of sense, base stage B, pin 1 that pin 2 meets triode G connect the emitter e of triode G and meet power supply E, saidly apply to install that to put be the playback loudspeaker Ω that the pin 4 with the collector C of triode G and integrated package 786153 joins.