CN2162680Y

CN2162680Y - Siren for baby wet by urine

Info

Publication number: CN2162680Y
Application number: CN 93207932
Authority: CN
Inventors: 王电
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-29
Filing date: 1993-03-29
Publication date: 1994-04-20
Anticipated expiration: 2003-03-29

Abstract

The utility model relates to an alarm apparatus for detecting a baby's urine-wetting napkin and alarming. The apparatus is composed of two circuit loops, the first loop is a detecting circuit composed of electrode equivalent circuits R and K, a power supply E1 and an e and a b poles of a transistor T. The second loop is a sound emitting circuit composed of a power supply E2, a music integrated circuit IC, a piezoelectric ceramic plate B and the e and a c poles of the transistor T. The utility model is characterized in that the E1 and E2 are respectively positioned in two loops with an advantage of simplified manufacture process. The T is a medium of the two loops and controls the power supply end of IC of the second loop not a triggering end with an advantage of improved anti-interference ability.

Description

Siren for baby wet by urine

The utility model relates to a kind of baby' diaper that detects and wets and the alarm of warning.

At present technology similarly is to have the alarm baby bunting, and this sleeping bag is suitable for cold day and is not suitable for using hot day, and baby's effect that meeting is stood up is not good enough, and price is high too.

The purpose of this utility model provides a kind of use flexibly, easily and low-cost alarm device for urine wet.

The principal ingredient of device is a circuit, and circuit is made up of two loops, and first loop comprises resistance R, K switch, power supply E ₁With devices such as transistor Ts, wherein R, K are the equivalent electrical circuit of electrode; First loop is an on-off circuit, and function is to urinate wet the detection; Second loop comprises power supply E ₂, transistor T, devices such as music integrated circuit IC, piezoelectricity pottery sheet H, it is a phonation circuit, IC has five leads ends, wherein 1 pin is a power end, 2 pin are trigger end, 4,5 pin are connected on the piezoelectricity pottery sheet H for the pronunciation output terminal; As long as put 1.5V～3V direct supply to 1,3 pin of IC, 2 pin are imported level or the pulse signal of a 1.5V again, and IC just can be by 4,5 pin to piezoelectricity pottery sheet H output pronunciation signal; T as gauge tap, is subjected to the control in first loop again in second loop; Because in first loop, disconnect when K is flat, so the loop is obstructed, T ends, second loop is also obstructed; When electrode is met wet conducting (equivalent K parts close conducting), the then first loop conducting, T is conducting also, thus the also conducting of second loop, so musical film IC sends musical sound by piezoelectricity pottery sheet H.

This device compared with prior art has following two advantages:

(1) E ₁, E ₂Separately, join with same polarity, but simplified manufacturing technique like this, and the reduction means volume reduces cost.

(2) 2 ends of IC are trigger end, and this device does not remove to control trigger end with the power end of T control pronunciation circuit.Can improve antijamming capability like this, prevent spurious alarm.Can economize on electricity simultaneously.

This device is considered to reduce volume morely and is simplified technology, reduces cost.

Fig. 1 is a warning circuit.Wherein T is a PNP transistor, and empty frame 1 is the equivalent electrical circuit of electrode.

Fig. 2 is a warning circuit.Wherein T is a NPN transistor, and empty frame 1 is the equivalent electrical circuit of electrode.

Fig. 3 is the positive source homopolarity artwork that joins.Wherein 1 is the bakelite base, the 2nd, and betal can, the 3rd, negative terminal pole piece, the 4th, anode elasticity pole piece, the 5th, button cell.

Fig. 4 is the power cathode homopolarity artwork that joins.Wherein 1 is the bakelite base, the 2nd, and betal can, the 3rd, anode pole piece, the 4th, negative terminal elasticity pole piece, the 5th, button cell.

Fig. 5 is the electrode synoptic diagram.Wherein the 1, the 2nd, a pair of pole piece, the 3rd, plastic feet, the 4th, contact conductor.

Embodiment one:

By circuit diagram shown in Figure 1, transistor T uses 9012 transistors of positive-negative-positive; 9012 transistor β values are generally all greater than 100, and T is easier to be operated under the state of saturation like this, thereby reduce E ₂In the e of T, the pressure drop on the c end; E ₁, E ₂Be the button cell of 1.5V, IC can be a KD9300 integrated circuit musical film, and H is that diameter is the piezoelectricity pronunciation pottery sheet of 20～28mm, and R, K are the electrode equivalent electrical circuit, get final product so manufacture pair of electrodes.

Electrode is manufactured this can several different methods, a kind of simple method is: with a copper clad plate, be cut into diameter and be about the circle of 20mm, carve a Cao Gou by the center of circle along a diameter line, circular copper face is divided into two semi-circular shapes that separate,, it is drawn with couple of conductor as electrode pad, can join with circuit, as shown in Figure 5.

Battery folder can be manufactured by mode shown in Figure 3, makes base with the bakelite sheet of the about 8X18mm of a chip size, manufactures two pole pieces in the negative terminal position of two batteries; Betal can sheet 2 has certain elasticity, presses fixed in shape shown in Figure 3 on two positive plates of base plate; Extrude two little pole pieces on the betal can sheet of position, battery anode center of circle correspondence, as the positive plate of two batteries, simultaneously also as the making leaf spring of battery, the battery that fixes is used; The battery folder of making in this way, can be encapsulated in diameter with circuit board, piezoelectricity pottery sheet is 25mm, highly is in the oblate cylindrical shell of 14mm.

Embodiment two:

By circuit diagram shown in Figure 2, transistor T uses 9013 transistors of NPN type; 9013 transistor β values are generally all greater than 100, and T is easier to be operated under the state of saturation like this, thereby reduce E ₂In the e of T, the pressure drop on the c end; E ₁, E ₂Be the button cell of 1.5V, IC can be a KD9300 integrated circuit musical film, and H is that diameter is the piezoelectricity pronunciation pottery sheet of 20～28mm, and R, K are the electrode equivalent electrical circuit, get final product so manufacture pair of electrodes.

Battery folder can be manufactured by mode shown in Figure 4, makes base with the bakelite sheet of the about 8X18mm of a chip size, manufactures two pole pieces in the negative terminal position of two batteries; Betal can sheet 2 has certain elasticity, presses fixed in shape shown in Figure 4 on two positive plates of base plate; Extrude two little pole pieces on the betal can sheet of position, battery anode center of circle correspondence, as the positive plate of two batteries, simultaneously also as the making leaf spring of battery, the battery that fixes is used; The battery folder of making in this way, can be encapsulated in diameter with circuit board, piezoelectricity pottery sheet is 25mm, highly is in the oblate cylindrical shell of 14mm.

Claims

1, a kind ofly make " the baby's urinating alarm " of gauge tap by transistor T, its circuit comprises and detecting and two electronic loops that pronounce, and detects the loop and comprises R, K, power supply E ₁And transistor T, the pronunciation loop comprises power supply E ₂, transistor T, music integrated circuit sheet IC etc., T is the media in two loops, makes gauge tap in the pronunciation loop; When electrode wets path because of meeting in detecting the loop (K closure in the equivalent electrical circuit), make the T conducting, thereby make pronunciation circuit conducting work, and then piezoelectricity pottery sheet H pronunciation is reported to the police; It is characterized in that: power supply E ₁, E ₂Split in two loops, link to each other with same polarity; Simultaneously, T removes to control the power end 1 and 3 of IC in the pronunciation circuit, the trigger end 2 direct-connected positive sources of IC as switch.

2, " baby's urinating alarm " according to claim 1 is characterized in that E ₁, E ₂Be connected with same polarity.

3, " baby's urinating alarm " according to claim 1, e, the c end that it is characterized in that transistor T are directly or by power supply E ₂Be connected on power end 1,3 ends among the musical film IC, 2 ends (trigger end) of IC directly meet power supply E ₂Positive pole one end.