CN2239100Y - Water sensitive electronic switch - Google Patents
Water sensitive electronic switch Download PDFInfo
- Publication number
- CN2239100Y CN2239100Y CN 95240513 CN95240513U CN2239100Y CN 2239100 Y CN2239100 Y CN 2239100Y CN 95240513 CN95240513 CN 95240513 CN 95240513 U CN95240513 U CN 95240513U CN 2239100 Y CN2239100 Y CN 2239100Y
- Authority
- CN
- China
- Prior art keywords
- water
- comb
- sensitive
- triode
- relay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a water sensitive electronic switch, being composed of a circuit box and a water sensitive sensing plate. A box body is provided with a power supply plug and a load inserting hole, the plane of the water sensitive sensing plate is provided with two comb-shaped electrodes whose comb feet are alternately inserted and arranged, and gaps are arranged between comb feet. When the comb feet are contacted with water, the two comb-shaped electrodes are switched on, after the two comb-shaped electrodes are amplified secondarily, a relay is closed, and current is outputted. The utility model can be connected with a sound, a light-emitting or a control circuit to generate sound and light alarm or mechanical actions and can be used for various fields relevant to the water, such as a liquid level alarm field or a clothes hanger auto-folding field, etc.
Description
The utility model relates to a kind of water of meeting from logical water-sensitive electronic switch.
Water is present in human lives's various fields, and under some occasion, people need in time report the existence or the height of water level of water, taking appropriate measures.Need in time connect urine or changing babies' napkin when for example the baby is pissed; When raining, need in time to regain the clothing of airing; In the chemical industry operation, when feed liquid is raised to predetermined fluid level, need closes inlet valve or advance next step operation of people; When river level rises to police circles' height, need flood control or the like.Therefore, people wish and can in time report the not arrival information of position of the arrival of water or police circles by various water alarms, to take measures or to send instruction by controller, finish corresponding operation automatically.
The purpose of this utility model provides a kind of water-sensitive electronic switch, and it can make circuit meet water from logical, satisfies the above-mentioned various alarm relevant with water or the needs of controller.
The utility model water-sensitive electronic switch is made up of circuit box and water-sensitive sensing plate, the electronic circuit board that contains transformer, bridge rectifier, resistance, triode and relay is housed in the circuit box, box body is provided with attaching plug and load spliced eye, said water-sensitive sensing plate planar cloth is provided with two comb electrodes, alternate interting of two electrode combs pin arranges, and each is combed and stays the gap between the pin mutually.
The circuit connection structure of this water-sensitive electronic switch is as follows: AC power is through transformer B step-down, capacitor C of two output terminations by bridge rectifier D 1-D4, the end while of C and the negative terminal of diode D, the defeated t end of relay J X, the a end of water-sensitive transducer M joins, the anode of diode D joins with the output of relay J X and the collector electrode of triode BG2 simultaneously, the emitter of BG2 and the other end of capacitor C join, this end series resistor R3, potentiometer W and resistance R 2 backs join with the b end of water-sensitive transducer M, the base stage of triode BG2 connects the emitter of triode BG1, the base stage of BG1 connects the adjustable side of potentiometer W, the input of collector series connection resistance R 1 back and the relay J X e that joins, f connects load.This load can be a buzzer, indicator light, or control circuit etc.
This water-sensitive electronic switch two comb electrodes are respectively combed only minim gap between the pin, under the drying regime, the two poles of the earth disconnect, and no current passes through, when water falls within electrode, between the comb pin promptly by the water droplet conducting, relay J X-contact closure, load is promptly switched on.This water-sensitive electronic switch purposes is very extensive, only need sensing plate is put in suitable position, will just occur or liquid level is sent sound (light) when just having arrived police circles' height and reported to the police at water droplet, for example can be used for the baby and flow liquid level warning in urine warning and rivers or the container etc.If itself and various controller are linked, can finish corresponding operating automatically.For example link with it and from receiving the clothes horse controller, and the water-sensitive sensing plate is placed outside the balcony, when raining, fall on sensing plate as a rain, controller is promptly switched on, and causes clothes horse that frame takes place to receive and moves, and avoids clothing to drench.
Below in conjunction with description of drawings structure of the present utility model.
Fig. 1 is the three-dimensional structure diagram of the utility model water-sensitive electronic switch,
Fig. 2 is a circuit diagram of the present utility model.
As shown in Figure 1, this water-sensitive electronic switch is made up of electronic circuit box 2 and water-sensitive sensing plate 5, and box body is provided with attaching plug 1 and load jointing holes 3, and two copper sheet comb electrodes 6 and 7 are fixed in the plane on the water-sensitive sensing plate 5, two electrodes respectively comb the alternate interspersed arrangement of pin, stay the gap mutually and do not contact.The two poles of the earth join by circuit in lead 4 and the box.
The circuit diagram of this water-sensitive of Fig. 2 electronic switch, the 220V alternating current is decompressed to 12V by transformer B, is pulse direct current by bridge rectifier D 1-D4 rectification, is filtered into DC power supply by capacitor C, is added on comb electrode a, b two ends.When having a water to touch on the water-sensitive transducer, the comb pin of two utmost points is connected, produce the 20MA electric current, behind resistance R 2 and potentiometer W, become the 0.1MA electric current approximately and control triode BG1 once amplify the 1MA electric current, amplify through the BG2 secondary again, get the 10MA electric current, this moment relay J X-contact closure, 220V exchanges by e, the output of f contact, connects load.This e, f contact are the jointing holes 3 of Fig. 1.
Claims (2)
1, water-sensitive electronic switch, form by circuit and water-sensitive sensing plate, it is characterized in that being equipped with in the circuit box electronic circuit board that contains transformer, bridge rectifier, resistance, triode and relay, box body is provided with attaching plug and load spliced eye, said water-sensitive sensing plate planar cloth is provided with two comb electrodes, alternate interting of two electrode combs pin arranges, and each is combed and stays the gap between the pin mutually.
2, water-sensitive electronic switch according to claim 1, it is characterized in that the circuit connecting relation is as follows: AC power is through transformer B step-down, connect with two ends of capacitor C by bridge rectifier D 1-D4 two outputs, the end while of C and the negative terminal of diode D, the input of relay J X, the a end of water-sensitive transducer M joins, the anode of diode D joins with the output of relay J X and the collector electrode of triode BG2 simultaneously, the other end of the emitter of triode BG2 and capacitor C joins, this end series resistor R3, potentiometer W and resistance R 2 backs join with the b end of water-sensitive sensor M, the base stage of triode BG2 connects the emitter of triode BG1, the base stage of BG1 connects the adjustable side of potentiometer W, collector series connection resistance R 1 back joins e with the input of relay J X, f connects load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95240513 CN2239100Y (en) | 1995-09-18 | 1995-09-18 | Water sensitive electronic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95240513 CN2239100Y (en) | 1995-09-18 | 1995-09-18 | Water sensitive electronic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2239100Y true CN2239100Y (en) | 1996-10-30 |
Family
ID=33882082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95240513 Expired - Fee Related CN2239100Y (en) | 1995-09-18 | 1995-09-18 | Water sensitive electronic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2239100Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109495097A (en) * | 2018-12-17 | 2019-03-19 | 成都国星通信有限公司 | A kind of chance taps circuit and its on-off method |
-
1995
- 1995-09-18 CN CN 95240513 patent/CN2239100Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109495097A (en) * | 2018-12-17 | 2019-03-19 | 成都国星通信有限公司 | A kind of chance taps circuit and its on-off method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |