CN2224610Y

CN2224610Y - Electronic music napkin

Info

Publication number: CN2224610Y
Application number: CN 95231878
Authority: CN
Inventors: 王树海
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-05
Filing date: 1995-08-05
Publication date: 1996-04-17
Anticipated expiration: 2005-08-05

Abstract

The utility model discloses an electronic music napkin, being composed of a composite cloth and an electronic circuit. The composite cloth is made by sewing a plurality of layers of clothes, a sensor is arranged in the interlayer of the composite cloth, the sensor is composed of two conductive clothes arranged in a parallel way, the electronic circuit is composed of a power supply, a secondary amplifying circuit and a sound emitting circuit, the sound emitting circuit is composed of a musical chip and a loudspeaker, and the secondary amplifying circuit is composed of a primary amplifying triode and a secondary amplifying triode. When the composite cloth is wet by urine, the sensor is conducted, and current signals are generated and amplified by the secondary amplifying circuit to be conveyed to the musical chip, the loudspeaker emits euphonic music and the parents are reminded to change the napkin.

Description

The music electronic diaper

This utility model belongs to a kind of moist alarm device, particularly a kind of when baby's defecation the music electronic diaper of sounding alarm.

At present, the articles for use that are used for baby's defecation mainly contain diaper and diaper, and diaper is a monolayer fritter cotton, are put under baby's body during use or are wrapped on one's body the baby.This diaper can be attached on baby's the skin after baby's defecation, and is bigger to the stimulation of infant skin.Though diaper can absorb urine, the effect that cannot not reach wetly always also can some tide, and the baby feels can be comfortable inadequately, and with producing abnormal flavour after a period of time, in addition, diaper is inoperative when the baby defecates.In order to overcome the deficiency of diaper and diaper, people have developed the electronics diaper that can in time report to the police after baby's defecation.A kind of " music electronic diaper " disclosed as Chinese patent " 93212979.X ", should " music electronic diaper " form by combination cloth and electronic circuit, in the interlayer of combination cloth two plain conductors as pick off are housed, two plain conductors join with two end points that are sewn on one jiao of combination cloth respectively; Electronic circuit is made up of power supply, on-off circuit and sounding mu circuit, on-off circuit is made of audion and thyratron transistor, sounding mu circuit is made of musical film, piezoelectric ceramics and speaker, draws lead for two in the electronic circuit and joins with two end points that make up on the cloth respectively.Urinated when wet when combination cloth, two plain conductor conductings make two to draw the lead conducting, and the audion conduction produces a trigger voltage, makes the thyratron transistor conducting, and musical film work is amplified through piezoelectric ceramics, sends music alarm by speaker.This music electronic diaper is owing to adopt plain conductor as pick off, therefore, the washing of combination cloth is very inconvenient, and plain conductor fractures easily and scurries the position, thereby loses its effect, the reliability of not only working is lower, and plain conductor also passes the cloth from combination easily, stabs infant skin, in addition, the components and parts that electronic circuit adopts are also many, increased production cost.

The purpose of this utility model is to provide a kind of simple in structure, safe and reliable, wash resistant, music electronic diaper that cost is low.

This utility model is achieved in that

It is made up of combination cloth and electronic circuit two parts, and combination cloth is made with several layers cloth and formed, and in the interlayer of combination cloth pick off is housed, and pick off is two conductive fabrics that be arranged in parallel; Described electronic circuit is made up of power supply, second amplifying circuit and phonation circuit, phonation circuit is made up of musical film and speaker, the two ends of speaker join with the contact and the contact of musical film respectively, and the positive pole of power supply and negative pole join with the positive pole and the negative pole of musical film respectively; Described second amplifying circuit is made up of one-level amplifying triode and secondary amplifying triode, wherein the base stage of the emitter stage of one-level amplifying triode and secondary amplifying triode is joined, the emitter stage of secondary amplifying triode and the positive pole of power supply join, and the colelctor electrode of one-level amplifying triode and secondary amplifying triode and the contact of musical film join; Described pick off is connected between the base stage of the negative pole of power supply and one-level amplifying triode.

Advantage of the present utility model is:

1. adopt conductive fabric as sensing element, because conductive fabric had both kept the characteristics of textile, the characteristic that has metallic conduction again, therefore, combination cloth is soft more, be convenient to washing, neither hinder infant skin, also do not have any zest, but also be easy to make and fix, repeatedly wash conductive fabric and also can not scurry the position, improved the security reliability of using.

2. simplify circuit structure, reduced the components and parts of electronic circuit, made structure simpler, and then reduced cost.

Provide embodiment of the present utility model below in conjunction with accompanying drawing:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is A-A cutaway view of Fig. 1;

Fig. 3 is a circuit structure diagram of the present utility model.

As shown in the figure, this utility model is made up of combination cloth 1 and electronic circuit two parts, the two-layer cotton of combination cloth 1 usefulness is made and is formed, combination cloth 1 also can be made with the multilamellar cotton and form, and perhaps adopts one deck cotton and one deck diaper to make, and in the interlayer of combination cloth 1 pick off 4 and 5 is housed, pick off 4 and 5 is two conductive fabrics that be arranged in parallel, pick off 4 and 5 usefulness sewer to fix its position, prevent play on combination cloth 1; End at combination cloth 1 has two end points 2 and 3, and pick off 4 and 5 joins with end points 2 and 3 respectively, end points 2 and 3 again respectively with electronic circuit draw lead K ₁And K ₂One-tenth removably connects, and pulls down washing so that will make up cloth 1; Described electronic circuit is made up of power supply E, second amplifying circuit and phonation circuit, power supply E is made up of two 1.5V button cells, phonation circuit is made up of musical film TM and speaker S, the two ends of speaker S join with contact 7 and the contact 8 of musical film TM respectively, and the positive pole of power supply E and negative pole join with positive pole 9 and the negative pole 6 of musical film TM respectively; Described second amplifying circuit is by one-level amplifying triode BG ₁With secondary amplifying triode BG ₂Form, wherein one-level amplifying triode BG ₁Emitter stage and secondary amplifying triode BG ₂Base stage join secondary amplifying triode BG ₂Emitter stage and the positive pole of power supply E join one-level amplifying triode BG ₁With secondary amplifying triode BG ₂Colelctor electrode and the contact 7 of musical film TM join; Described pick off 4 and 5 is by drawing lead K ₁And K ₂Be connected in negative pole and the one-level amplifying triode BG of power supply E ₁Base stage between; Drawing lead K ₂With one-level amplifying triode BG ₁Base stage between also be connected to current-limiting resistance R ₁, at one-level amplifying triode BG ₁Base stage and secondary amplifying triode BG ₂Emitter stage between also be connected to shunt resistance R ₂, to reduce the sensitivity of second amplifying circuit.

When combination cloth 1 was wet by urine, pick off 4,5 got final product conducting, draws lead K thereby make ₁, K ₂Conducting produces current signal, and this current signal amplifies through second amplifying circuit, flows to musical film TM, makes speaker S send melodious music, reminds more changing babies' napkin of the baby head of a family.

Claims

1. music electronic diaper, it is made up of combination cloth (1) and electronic circuit two parts, combination cloth (1) is made with several layers cloth and is formed, in the interlayer of combination cloth (1), pick off (4,5) is housed, electronic circuit is made up of power supply (E), second amplifying circuit and phonation circuit, phonation circuit is made up of musical film (TM) and speaker (S), the two ends of speaker (S) join with contact (7) and the contact (8) of musical film (TM) respectively, and the positive pole of power supply (E) and negative pole join with positive pole (9) and the negative pole (6) of musical film (TM) respectively; It is characterized in that described pick off (4,5) is two conductive fabrics that be arranged in parallel; Described second amplifying circuit is by one-level amplifying triode (BG ₁) and secondary amplifying triode (BG ₂) composition, wherein one-level amplifying triode (BG ₁) emitter stage and secondary amplifying triode (BG ₂) base stage join secondary amplifying triode (BG ₂) emitter stage and the positive pole of power supply (E) join one-level amplifying triode (BG ₁) and secondary amplifying triode (BG ₂) colelctor electrode and the contact (7) of musical film (TM) join; Described pick off (4,5) is connected in the negative pole and the one-level amplifying triode (BG of power supply (E) ₁) base stage between.