CN201111654Y - Electronic doorbell with flashing light - Google Patents
Electronic doorbell with flashing light Download PDFInfo
- Publication number
- CN201111654Y CN201111654Y CNU2007200281212U CN200720028121U CN201111654Y CN 201111654 Y CN201111654 Y CN 201111654Y CN U2007200281212 U CNU2007200281212 U CN U2007200281212U CN 200720028121 U CN200720028121 U CN 200720028121U CN 201111654 Y CN201111654 Y CN 201111654Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- capacitor
- electronic doorbell
- flash
- signal amplification
- 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 an electronic doorbell with a flash, which pertains to the field of electronic doorbell circuits. The technical proposal is that the electronic doorbell with a flash is composed of a sensor, a signal amplification circuit, a monostable circuit, a low-frequency oscillator circuit, a power supply circuit and an acoustic-optical prompting circuit by connection, wherein, a piezoelectric ceramic sheet THD is taken as a door knocking sensor; the signal amplification circuit is composed of resistors R1, R2, R3, R4 and R5, triodes T1 and T2 and a capacitor C1; the monostable circuit is composed of a resistor R6, capacitors C2 and C3 and an integrated circuit IC; the low-frequency oscillator circuit is composed of triodes T3 and T4, resistors R7 and R8 and a capacitor C4; the power supply circuit is composed of a capacitor C6, a diode D1 and a capacitor C5; a controllable silicon BCR, a light bulb L and a speaker are connected on the power supply circuit to constitute the acoustic-optical prompting circuit. The electronic doorbell with a flash has simple structure and convenient manufacture, which is particularly applicable to the families which often have the elderly with poor hearing or the deaf people at home for usage.
Description
Technical field
The utility model relates to a kind of electronic door bell with flash of light of electronic door bell circuit field.
Background technology
Now family all is equipped with doorbell, but these doorbells have only the voice suggestion effect usually, when being in for the bad the elderly of hearing or deaf-mute, does not just have effect.
Summary of the invention
The purpose of this utility model is exactly the defective that exists at prior art, provides a kind of and possesses luminous simultaneously and the electronic door bell with flash of light vocal function.
Its technical scheme is: connected to form by sensor, signal amplification circuit, monostable circuit, LF oscillator circuit, feed circuit and acousto-optic cue circuit.Wherein: by the piezoelectric ceramic piece THD sensor of knocking at the door; Form signal amplification circuit by resistance R 1, R2, R3, R4, R5, triode T1, T2, capacitor C 1; Form monostable circuit by resistance R 6, capacitor C 2, C3, integrated circuit (IC); Form the LF oscillator circuit by triode T3, T4, resistance R 7, R8, capacitor C 4; Form feed circuit by capacitor C 6, diode D1, capacitor C 5; Controllable silicon BCR and bulb L, loudspeaker are connected power circuit and constitute the acousto-optic hint circuit.
The utlity model has simple in structurely, easily manufactured, be particularly suitable for often having in the family bad the elderly of hearing or deaf-mute's family to use.
Description of drawings
Fig. 1 is the circuit theory diagrams of a kind of embodiment.A, N are power supplys among the figure.
Embodiment
Be further described below in conjunction with accompanying drawing: piezoelectric ceramic piece THD is connected with resistance R 1 as sensor, and resistance R 1, capacitor C 1 connection resistance R 2, R3, R4, R5, triode T1, T2 form signal amplification circuit; Integrated circuit (IC) (NE555) connects resistance R 6, capacitor C 2, C3, composition monostable circuit; Triode T3, T4 connect resistance R 7, R8, capacitor C 4 composition LF oscillator circuit; Capacitor C 6 connects diode D1, capacitor C 5 is formed feed circuit; Controllable silicon BCR and bulb L, loudspeaker are connected power circuit and constitute the acousto-optic hint circuit.
After power supply A, N connected, feed circuit provided power supply for signal amplification circuit, monostable circuit, LF oscillator circuit; At ordinary times, the non-inductive signal of piezoelectric ceramic piece THD, monostable circuit output low level then, LF oscillator failure of oscillation, not conducting of controllable silicon BCR.Bulb L does not work, and loudspeaker do not ring.When the people knocks at the door, piezoelectric ceramic piece THD has induced signal to produce, this signal is after signal amplification circuit amplifies, the upset of triggering monostable circuit, and the output high level makes the LF oscillator starting of oscillation then, and trigger controllable silicon BCR conducting, end through diode D2, bulb L is glittering, and sound horn reminds the guest to arrive.
Claims (1)
1, a kind of electronic door bell with flash of light is characterized in that: connected to form by sensor, signal amplification circuit, monostable circuit, LF oscillator circuit, feed circuit and acousto-optic cue circuit, wherein sensor is piezoelectric ceramic piece (THD); Signal amplification circuit is connected to form by resistance (R1, R2, R3, R4, R5), triode (T1, T2), electric capacity (C1); Monostable circuit is connected to form by resistance (R6), electric capacity (C2, C3), integrated circuit (IC); The LF oscillator circuit is connected to form by triode (T3, T4), resistance (R7, R8), electric capacity (C4); Feed circuit are made up of electric capacity (C6), diode (D1), electric capacity (C5); The acousto-optic hint circuit is to be connected power circuit by controllable silicon (BCR) and flashlamp (L), loudspeaker (S).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200281212U CN201111654Y (en) | 2007-09-19 | 2007-09-19 | Electronic doorbell with flashing light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200281212U CN201111654Y (en) | 2007-09-19 | 2007-09-19 | Electronic doorbell with flashing light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201111654Y true CN201111654Y (en) | 2008-09-10 |
Family
ID=39963396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200281212U Expired - Fee Related CN201111654Y (en) | 2007-09-19 | 2007-09-19 | Electronic doorbell with flashing light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201111654Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110336A (en) * | 2011-02-28 | 2011-06-29 | 黄勇 | Deaf-mute doorbell additional device |
| CN112071000A (en) * | 2020-09-09 | 2020-12-11 | 李永杰 | Intelligent security doorbell |
-
2007
- 2007-09-19 CN CNU2007200281212U patent/CN201111654Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110336A (en) * | 2011-02-28 | 2011-06-29 | 黄勇 | Deaf-mute doorbell additional device |
| CN102110336B (en) * | 2011-02-28 | 2012-10-17 | 黄勇 | Deaf-mute doorbell additional device |
| CN112071000A (en) * | 2020-09-09 | 2020-12-11 | 李永杰 | Intelligent security doorbell |
| CN112071000B (en) * | 2020-09-09 | 2022-09-30 | 李永杰 | Intelligent security doorbell |
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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 |