CN102760338A - Non-contact electronic ding-dong doorbell - Google Patents
Non-contact electronic ding-dong doorbell Download PDFInfo
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- CN102760338A CN102760338A CN2012102603080A CN201210260308A CN102760338A CN 102760338 A CN102760338 A CN 102760338A CN 2012102603080 A CN2012102603080 A CN 2012102603080A CN 201210260308 A CN201210260308 A CN 201210260308A CN 102760338 A CN102760338 A CN 102760338A
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Abstract
The invention discloses a non-contact electronic ding-dong doorbell. The doorbell consists of a 6V DC power supply, a power switch SW, a non-contact switching circuit, a music generating circuit, an audio amplifying circuit and a loudspeaker SY, and is characterized in that a music circuit IC1 in the music generating circuit selects the model of KD9300 or CW9300. By adopting the non-contact electronic ding-dong doorbell, when a visitor comes to a room door, through human body induction, the non-contact electronic switching circuit automatically starts the electronic doorbell circuit to produce a nice ding-dong sound so as to promptly notify the host of opening the door and greeting the visitor. Besides, a non-contact electrode of the doorbell can be mounted in proper positions on warehouse doors, windows and the like to serve as an anti-theft alarm. As the non-contact electrode can be neither seen nor touched outside the room door, mischief of children is prevented.
Description
Technical field
The invention belongs to the application of electronic technology field, is about a kind of non-contact electronics ding-dong doorbell.
Background technology
General electronic door bell is many by being arranged on the outer keyswitch control doorbell of door.This traditional doorbell is difficult to avoid children mischief ground to disturb, thereby is just given it up after having a lot of electronic door bells with a period of time; Run into you and go home two hands when holding a lot of article, can't vacate finger and ring a doorbell and let the household open the door, at this moment need most and inform that when the household opened the door for you, common doorbell had but become ornaments for you.
Non-contact electronics ding-dong doorbell of the present invention during its position before having the guest to come door, through the induction of human body, is used the non-contact electronic switching circuit and is started the electronic door bell circuit automatically and send graceful ding-dong sound, in time notifies owner to open the door and welcome the guest in.In addition, also can use as burglar alarm with the non-contact electrode arrangement of this doorbell in appropriate locations such as warehouse gate, windows.
Both cannot see, also can not touch because of non-contact electrode outside door, can stop the generation of children's mischief phenomenon fully.Show through using: the installation and the use of this non-contact electronics ding-dong doorbell, no matter the visiting guest is still felt convenient especially to family per capita.
Below specify this non-contact electronics ding-dong doorbell of the present invention related correlation technique content in manufacturing process.
Summary of the invention
Goal of the invention and beneficial effect: non-contact electronics ding-dong doorbell of the present invention; During its position before having the guest to come door; Through the induction of human body, use the non-contact electronic switching circuit and start the ding-dong sound that the electronic door bell circuit sends grace automatically, in time notify owner to open the door and welcome the guest in.In addition, also can use as burglar alarm with the non-contact electrode arrangement of this doorbell in appropriate locations such as warehouse gate, windows.Both cannot see, also can not touch because of non-contact electrode outside door, can stop the generation of children's mischief phenomenon fully.Show through using: the installation and the use of this non-contact electronics ding-dong doorbell, no matter the visiting guest is still felt convenient especially to family per capita.
The circuit working principle: non-contact electronics ding-dong doorbell mainly is made up of non-contact electronic switch, music generating circuit, audio amplifier circuit and loudspeaker.The non-contact electronic switching circuit is made up of non-contact electrode MO, NPN transistor VT2～VT3 and potentiometer RP; Music generating circuit and audio amplifier circuit are made up of music circuit IC1, resistance R 1, NPN transistor VT1 and loudspeaker SY.Behind the closed connection of non-contact electronics ding-dong doorbell power switch SW 6V direct supply, the non-contact electronic switching circuit gets into holding state.As the people during near non-contact electrode MO; The noise signal of human body is after NPN transistor VT3, the compound amplification of VT2; Make NPN transistor VT2 conducting; The 2nd pin of music circuit IC1 is triggered and starts working, and the music electrical signal of output carries out power amplification through NPN transistor VT1, drives loudspeaker SY sounding at last.
Technical characterictic: non-contact electronics ding-dong doorbell, it is made up of 6V direct supply, power switch SW, non-contact on-off circuit, music generating circuit, audio amplifier circuit and loudspeaker SY, and its characteristic comprises:
Non-contact on-off circuit: form by non-contact electrode MO, NPN transistor VT2～VT3 and potentiometer RP; Non-contact electrode MO connects the base stage of NPN transistor VT3; The emitter of NPN transistor VT3 connects the base stage of NPN transistor VT2 and the end of potentiometer RP; The other end of potentiometer RP and movable end connection circuit ground GND thereof; The anodal VCC of the 1st pin connection circuit of the collector of the collector of NPN transistor VT3 and NPN transistor VT2 and music circuit IC1, the emitter of NPN transistor VT2 connects the 2nd pin of music circuit IC1;
Music generating circuit and audio amplifier circuit: form by music circuit IC1, resistance R 1, NPN transistor VT1 and loudspeaker SY; The model that music circuit IC1 selects for use is KD9300 or CW9300; The end of the 7th pin connecting resistance R1 of music circuit IC1; The 8th pin of another termination music circuit IC1 of resistance R 1; The 3rd pin of music circuit IC1 connects the base stage of NPN transistor VT1, and the collector of NPN transistor VT1 is through the anodal VCC of loudspeaker SY connection circuit, the 5th pin connection circuit ground GND of the emitter of NPN transistor VT1 and music circuit IC1.
The positive pole of 6V direct supply connects the end of power switch SW, the anodal VCC of the other end connection circuit of power switch SW, and the negative pole of 6V direct supply meets connection circuit ground GND.
Description of drawings
Accompanying drawing 1 is the circuit working schematic diagram of a kind of non-contact electronics ding-dong doorbell of providing of embodiment.
Embodiment
Technical requirement according to the components and parts of the non-contact electronics ding-dong doorbell fundamental diagram shown in the accompanying drawing 1 and description of drawings and the following stated is implemented, and can realize the present invention.
The selection of components and parts and technical parameter
VT1～VT3 is a NPN transistor, and the model of selecting for use is 2CS9013 or 2CS8050 type, requires enlargement factor β >=180;
Music circuit IC1 selects the generation circuit that is built-in with the ding-dong sound equipment for use, and its model is KD9300 or CW9300, and packing forms is soft encapsulation; The pin of rectangular indentation both sides is 7 pin, 8 pin in the soft encapsulation, and large tracts of land Copper Foil connection circuit ground GND has the pin connection circuit of VDD or VCC printed words anodal on it, be printed with IN and OUT printed words and be corresponding pin;
Resistance R 1 is selected 1/4W carbon resister or metalfilmresistor for use, and the resistance of resistance R 1 is 68K Ω;
RP is a potentiometer, and its resistance is 5.6K Ω;
SY is a loudspeaker, requires to select for use 0.25～0.5W, 8 Ω electrodynamic types;
SW is a power switch, can select small-sized one pole ship type switch for use;
The 6V direct supply can select for use No. 5 alkaline batteries of 4 joints to compose in series electric battery, also can use the 6V D.C. regulated power supply.
Circuit production main points and circuit debugging
Non-contact electronics ding-dong doorbell should be selected the intact components and parts of performance for use; After the annexation of components and parts is welded shown in the circuit working schematic diagram in the accompanying drawing 1; After wiring concerned conscientious confirmation to physics, this circuit need not debugged basically, and connecting the 6V direct supply can operate as normal;
The resistance of adjustment potentiometer RP can change the sensitivity of non-contact electronic switching circuit; Human body should be through resistance or the area of adjustment non-contact electrode MO sheet metal or the length of bonding jumper of adjusting potentiometer RP repeatedly apart from the distance of door;
Non-contact electrode MO uses the scale copper of 20mm * 65mm or length to make greater than the bonding jumper of 350mm, increases the area of sheet metal or the length of increase bonding jumper and helps to improve the sensitivity that doorbell is responded to;
Install and use
When non-contact electronics ding-dong doorbell is installed; Can non-contact electrode MO be placed in the doorframe; The position of the about 1.5m of setting height(from bottom); Non-contact electrode MO installation site is too low, receives interference that the child plays easily and misoperation, and requiring non-contact electrode MO both to cannot see, also can not touch in the door outside is degree.
Claims (2)
1. non-contact electronics ding-dong doorbell, it is made up of 6V direct supply, power switch SW, non-contact on-off circuit, music generating circuit, audio amplifier circuit and loudspeaker SY, and its characteristic comprises:
The non-contact on-off circuit is made up of non-contact electrode MO, NPN transistor VT2～VT3 and potentiometer RP; Non-contact electrode MO connects the base stage of NPN transistor VT3; The emitter of NPN transistor VT3 connects the base stage of NPN transistor VT2 and the end of potentiometer RP; The other end of potentiometer RP and movable end connection circuit ground GND thereof; The anodal VCC of the 1st pin connection circuit of the collector of the collector of NPN transistor VT3 and NPN transistor VT2 and music circuit IC1, the emitter of NPN transistor VT2 connects the 2nd pin of music circuit IC1;
Music generating circuit and audio amplifier circuit are made up of music circuit IC1, resistance R 1, NPN transistor VT1 and loudspeaker SY; The model that music circuit IC1 selects for use is KD9300 or CW9300; The end of the 7th pin connecting resistance R1 of music circuit IC1; The 8th pin of another termination music circuit IC1 of resistance R 1; The 3rd pin of music circuit IC1 connects the base stage of NPN transistor VT1, and the collector of NPN transistor VT1 is through the anodal VCC of loudspeaker SY connection circuit, the 5th pin connection circuit ground GND of the emitter of NPN transistor VT1 and music circuit IC1.
2. non-contact electronics ding-dong doorbell according to claim 1, it is characterized in that: the positive pole of 6V direct supply connects the end of power switch SW, the anodal VCC of the other end connection circuit of power switch SW, the negative pole of 6V direct supply meets connection circuit ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102603080A CN102760338A (en) | 2012-07-25 | 2012-07-25 | Non-contact electronic ding-dong doorbell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102603080A CN102760338A (en) | 2012-07-25 | 2012-07-25 | Non-contact electronic ding-dong doorbell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102760338A true CN102760338A (en) | 2012-10-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102603080A Withdrawn CN102760338A (en) | 2012-07-25 | 2012-07-25 | Non-contact electronic ding-dong doorbell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102760338A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198591A (en) * | 2013-04-15 | 2013-07-10 | 丁希庆 | Human-body-approach-type electronic doorbell |
| CN106530537A (en) * | 2016-12-26 | 2017-03-22 | 吴圣铎 | Human-body-approaching type electromagnetic induction music doorbell |
-
2012
- 2012-07-25 CN CN2012102603080A patent/CN102760338A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198591A (en) * | 2013-04-15 | 2013-07-10 | 丁希庆 | Human-body-approach-type electronic doorbell |
| CN106530537A (en) * | 2016-12-26 | 2017-03-22 | 吴圣铎 | Human-body-approaching type electromagnetic induction music doorbell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20121031 |