CN102496227A

CN102496227A - Doorbell auxiliary device for deaf-mute

Info

Publication number: CN102496227A
Application number: CN2011104066555A
Authority: CN
Inventors: 朱虹
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-08
Filing date: 2011-12-08
Publication date: 2012-06-13

Abstract

The invention relates to a doorbell auxiliary device for a deaf-mute. The doorbell auxiliary device for the deaf-mute consists of a common doorbell interface circuit, a photoelectric coupling circuit, a photoelectric signal amplification and delay circuit, a bidirectional thyristor trigger circuit, a load circuit and a 220V alternating current power supply. When a visitor rings a common doorbell to make a sound, a deaf person cannot timely respond. According to the characteristic of hearing impairment of the deaf-mute, a lamp control circuit which controls a filament lamp to flicker with the sounding rhythm of the doorbell to catch the eyes of the deaf-mute is arranged on the common doorbell. Specifically speaking, a simple interface is arranged on a shell of the common doorbell, and a circuit for controlling the filament lamp to flicker is added.

Description

The doorbell servicing unit that the deaf-mute uses

Technical field

The invention belongs to the application of electronic technology field, relate to the doorbell servicing unit that a kind of deaf-mute uses.

Background technology

To the disabled person who becomes deaf, when the guest visited, common doorbell sent sound equipment and is difficult to let the owner who becomes deaf in time react.The doorbell of studying, design and make a kind of suitable deaf-mute's use so just seems and is necessary very much.

Because there is obstacle in deaf-mute's hearing, at home the visiting common doorbell of guest outdoors is difficult to discover.The common feature that has the obstacle people according to hearing; Plan installs the control circuit that a cover is discovered by deaf-mute's eyes easily additional on common doorbell; Utilizing the mode of incandescent lamp flicker is a kind of technical scheme preferably; Be exactly on common doorbell shell, to increase an interface, additional again control circuit that can let incandescent lamp light or glimmer.

For effectively solving the technical matters of this respect, on the basis that does not change original common doorbell circuit and structure, the process kinds of schemes is tested, is analyzed and relatively, realized intended purposes with a small amount of discrete component.

Below specify the correlation technique of doorbell servicing unit in manufacturing process that this deaf-mute uses.

Summary of the invention

Goal of the invention and beneficial effect: to the disabled person that becomes deaf, common doorbell sends sound equipment and is difficult to let the owner who becomes deaf in time react when the guest visits.There are the characteristics of obstacle according to deaf-mute's hearing, on common doorbell, install a kind of incandescent lamp additional, the lighting control circuit that makes deaf-mute's eyes be easy to discover with the flicker of doorbell sounding rhythm.Concrete is exactly on common doorbell shell, to increase a simple interface, the circuit of an additional again cover control incandescent lamp flicker.

The circuit working principle: the doorbell servicing unit that the deaf-mute uses and the circuit connecting mode of common doorbell, shown in accompanying drawing 1.Common doorbell can adopt music or " ding-dong " electronic door bell.When the guest presses common doorbell aloud, the piezoelectric ceramics sector-meeting sounding in the common doorbell, this moment, audio voltage inputed to photoelectrical coupler G1 through electrochemical capacitor C1; The phototriode meeting conducting of photoelectrical coupler G1; So also conducting of PNP transistor BG1, electrochemical capacitor C2 is through behind the collector and resistance R 2 of PNP transistor BG1 thereupon, and C2 charges to electrochemical capacitor; The voltage at electrochemical capacitor C2 two ends rises gradually; When the last up voltage of electrochemical capacitor C2 reached the trigger voltage of bidirectional triode thyristor BT, then bidirectional triode thyristor BT triggering and conducting was lighted incandescent lamp HA, and incandescent lamp HA is along with the rhythm and the intensity of doorbell sounding are glimmered synchronously.Because after the bidirectional triode thyristor BT conducting, electrochemical capacitor C2 has the regular hour through the control utmost point G discharge of resistance R 3 through bidirectional triode thyristor BT.Therefore, bidirectional triode thyristor BT conducting meeting time-delay, certain time, behind electrochemical capacitor C2 discharge off, bidirectional triode thyristor BT will cross zero to cut-off, and cut off the 220V alternating current on the incandescent lamp HA, and circuit gets into no power consumption holding state.

Technical characterictic: the doorbell servicing unit that the deaf-mute uses, to form by common doorbell interface circuit, photoelectricity coupled circuit, photosignal amplification and delay circuit, bidirectional triode thyristor trigger circuit and load circuit, 220V AC power, its characteristic comprises:

Common doorbell interface circuit: form by common doorbell, electrochemical capacitor C1, photoelectrical coupler G1; The positive pole of one termination electrochemical capacitor C1 of the piezoelectric ceramic piece in the common doorbell; The negative pole of electrochemical capacitor C1 connects 1 pin of photoelectrical coupler G1,2 pin of another termination photoelectrical coupler G1 of the piezoelectric ceramic piece in the common doorbell;

Photosignal amplifies and delay circuit: be made up of photoelectrical coupler G1, resistance R 1, PNP transistor BG1, silicon rectifier diode D1, resistance R 2, electrochemical capacitor C2; Connect the base stage of PNP transistor BG1 behind the 5 pin series resistor R1 of photoelectrical coupler G1; It is anodal to meet electrochemical capacitor C2 after the collector series connection resistance R 2 of PNP transistor BG1; The negative pole of electrochemical capacitor C2 meets 4 pin of photoelectrical coupler G1 and the zero line side N of 220V AC power, and the emitter of PNP transistor BG1 connects the negative pole of commutation diode D1;

Bidirectional triode thyristor trigger circuit and load circuit: form by bidirectional triode thyristor BT, resistance R 3, incandescent lamp HA and 220V AC power; Connect the positive pole of electrochemical capacitor C2 behind the control utmost point G series resistor R3 of bidirectional triode thyristor BT; Connect the live wire end L of 220V AC power and the positive pole of commutation diode D1 behind the first anode T1 serial connection incandescent lamp HA of bidirectional triode thyristor BT, the second anode T2 of bidirectional triode thyristor BT meets the zero line side N of 220V AC power.

Description of drawings

Accompanying drawing 1 is the circuit working schematic diagram of the doorbell servicing unit that uses of deaf-mute; L in accompanying drawing 1, N symbol are represented the zero line side of 220V AC power live wire end, 220V AC power respectively; It is the finished product doorbell of piezoelectric ceramic piece that common doorbell in the accompanying drawing 1 should be selected sounding component for use.

Embodiment

The technical requirement of the circuit working schematic diagram of the doorbell servicing unit that uses according to deaf-mute shown in the accompanying drawing and the components and parts of description of drawings and the following stated is implemented, and can realize the present invention.

The selection of components and parts and technical parameter thereof

It is the finished product doorbell of piezoelectric ceramic piece that doorbell in the accompanying drawing 1 should be selected sounding component for use, requires the audio frequency output voltage >=3V at piezoelectric ceramic piece two ends in the finished product doorbell;

G1 is a triode type photoelectrical coupler, and model is selected 4N25 or 4N26 for use, and pin is 5 pin;

D1 selects 1N4004 type silicon rectifier diode for use;

BG1 selects positive-negative-positive 2N5401 transistor, encapsulated type TO-92, current amplification factor >=200 for use;

BT is a bidirectional triode thyristor, and model is MLR100-6 or BT169D, and voltage, major parameter are 1A/400V;

Resistance is selected 1/4W metalfilmresistor or carbon resister for use, and the resistance of resistance R 1, R3 is 12K Ω, and the resistance of resistance R 2 is 1K Ω, power 2W;

C1 is an electrochemical capacitor, and capacity is 220 μ F/16V.C2 is an electrochemical capacitor, and capacity is 100 μ F/160V;

HA is an incandescent lamp, and power is 15～60W/220V.

Circuit production main points and debugging

Can the doorbell servicing unit control circuit input end that the deaf-mute uses be made become plug, tipping 1 socket in the two ends of piezoelectric ceramic piece in the finished product doorbell, and inserting mode is taked in both connections, and the installation that combines like this, use meeting are convenient;

The doorbell servicing unit circuit that the deaf-mute uses is so long as the electronic devices and components performance of selecting for use is intact; The annexation of accompanying drawing and components and parts is welded to specifications; After physical connection line and welding quality process scrutiny were errorless, circuit need not debugged basically and get final product operate as normal;

It is the sort of finished product doorbell of piezoelectric ceramic piece that doorbell in the circuit working schematic diagram should be selected sounding component for use.When the audio frequency output voltage at piezoelectric ceramic piece two ends in the finished product doorbell during, can carry out step-down at the resistance of 100 Ω～510 Ω in 1 resistance of any end serial connection of electrochemical capacitor C1 much larger than 3V;

As if the luminance shortage of incandescent lamp HA flicker, can suitably reduce the resistance of resistance R 3, but the resistance of resistance R 3 must not be less than being 6.2K Ω;

Electrochemical capacitor C2 can delay time, continue the regular hour through the discharge of the bidirectional triode thyristor BT control utmost point, and the frequency of the big more incandescent lamp HA flicker of the capacity of electrochemical capacitor C2 is low more, and the time that flicker continues is just long more, can adjust according to user's actual needs in the making.

Claims

1. the doorbell servicing unit that the deaf-mute uses is made up of common doorbell interface circuit, photoelectricity coupled circuit, photosignal amplification and delay circuit, bidirectional triode thyristor trigger circuit and load circuit, 220V AC power, and its characteristic comprises:

Common doorbell interface circuit is made up of common doorbell, electrochemical capacitor C1, photoelectrical coupler G1; The positive pole of one termination electrochemical capacitor C1 of the piezoelectric ceramic piece in the common doorbell; The negative pole of electrochemical capacitor C1 connects 1 pin of photoelectrical coupler G1,2 pin of another termination photoelectrical coupler G1 of the piezoelectric ceramic piece in the common doorbell;

Photosignal amplifies and delay circuit is made up of photoelectrical coupler G1, resistance R 1, PNP transistor BG1, silicon rectifier diode D1, resistance R 2, electrochemical capacitor C2; Connect the base stage of PNP transistor BG1 behind the 5 pin series resistor R1 of photoelectrical coupler G1; It is anodal to meet electrochemical capacitor C2 after the collector series connection resistance R 2 of PNP transistor BG1; The negative pole of electrochemical capacitor C2 meets 4 pin of photoelectrical coupler G1 and the zero line side N of 220V AC power, and the emitter of PNP transistor BG1 connects the negative pole of commutation diode D1;

Bidirectional triode thyristor trigger circuit and load circuit are made up of bidirectional triode thyristor BT, resistance R 3, incandescent lamp HA and 220V AC power; Connect the positive pole of electrochemical capacitor C2 behind the control utmost point G series resistor R3 of bidirectional triode thyristor BT; Connect the live wire end L of 220V AC power and the positive pole of commutation diode D1 behind the first anode T1 serial connection incandescent lamp HA of bidirectional triode thyristor BT, the second anode T2 of bidirectional triode thyristor BT meets the zero line side N of 220V AC power.