CN2240749Y

CN2240749Y - Door bell with illumination

Info

Publication number: CN2240749Y
Application number: CN 95208081
Authority: CN
Inventors: 李连斌
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-04-17
Filing date: 1995-04-17
Publication date: 1996-11-20
Anticipated expiration: 2005-04-17

Abstract

The utility model discloses a lighting door bell which is composed of a power circuit, a delay circuit, a light sense control circuit, a button switch, an electric bell and a lighting lamp. The power circuit supplies power to the delay circuit, and also supplies power to the light sense control circuit and the door bell by a button K2. When a button K1 is instantly switched off, a relay in the delay circuit is attracted and the lighting lamp is lightened. After the power of an electrolytic condenser C2 is discharged, the relay is switched off, the delay is completed and the lighting lamp is extinguished. When the button K2 is instantly switched off, the bell works for once. When the resistance values of a resistor R2 and a photoresistor RL causes three feet of an NE 555 to output voltage, the relay is attracted and the lighting lamp lights. When the resistance values of the resistor R2 and the photoresistor RL does not cause the three feet of the NE 555 to output voltage, the relay does not work and the lighting lamp does not light.

Description

Door bell with illumination

The utility model relates to a kind of Door bell with illumination that cooperates peephole to use.

At present, a lot of families have installed peephole and doorbell, but at night, because the corridor is black, after the guest rang a doorbell, the wife did not see people outdoors with peephole, made peephole ineffective at night.

By retrieval, the technology of being made Door bell with illumination by the illuminating lamp of optically controlled delay circuit control with the electric bell combination did not also have, and light sensation control circuit of the present utility model and delay circuit are simpler and reliable than prior art.

The purpose of this utility model is exactly that the illuminating lamp of optically controlled delay circuit control and electric bell combination are made Door bell with illumination, invent thereby solution peephole in evening is ineffective, the utility model is compared with prior art had to people's life bring advantage very easily, that is: when evening, the corridor was very dark, by outdoor button, illuminating lamp was lighted, at this moment, the wife can see the corridor guest clearly by peephole, and lamp extinguishes after one section time-delay automatically.At an indoor button in addition, when the man-hour of seing a visitor out, click indoor button, illuminating lamp is bright, but doorbell is loud, and lamp extinguishes after one section time-delay automatically.Light activated element is housed near lamp holder, and by photosensitive control circuit, when the corridor was very bright, by outdoor button, bell ring, lamp did not work.

The purpose of this utility model is finished like this: the Door bell with illumination circuit is linked in sequence and is formed by power circuit, light sensation control circuit, delay circuit, electric bell.

220 volts of voltages are exported 9 volts of voltages through transformer B, four diode D1-D4 bridge rectifiers, electrochemical capacitor C1, the positive pole of the contact of diode D1 and D2 and electrochemical capacitor C1 joins, the negative pole of the contact of diode D3 and D4 and electrochemical capacitor C1 joins, and makes the Door bell with illumination circuit obtain one through filtering and have the shove operating voltage of the function of current of buffering; Anodal and the current-limiting resistance R1 of electrochemical capacitor C2, triode BG base stage serial connection, the collector of triode BG joins with diode D5 positive pole and relay, the negative pole of C2 is connected with the emitter of BG, button switch K 1 cross-over connection is in the negative pole of electrochemical capacitor C2 positive pole and diode D5, illuminating lamp is connected with relay, form delay circuit thus to illuminating lamp control, when button switch K 1 moment shutoff, the electrochemical capacitor charging also plays the buffer current effect, after K switch 1 disconnects, electrochemical capacitor C2 discharge continues to provide operating voltage to the base stage of triode BG by current-limiting resistance R1, makes relay J work, electrochemical capacitor C2 has been put, relay work finishes, thereby makes illuminating lamp finish the time-delay process of extinguishing from being illuminated to, for preventing to produce self inductance current in the relay course of work, delay circuit is impacted, and the diode D5 that is parallel to the relay two ends plays and prevents the function of current that recoils; Resistance R 2, photoresistance RL, capacitor C 3 and diode D6 respectively with 1 of integrated package NE555,2 pin, 6,8 pin, 5,1 pin, 3 pin join, wherein 4 of NE555,8 pin, 2,6 pin, 5,1 pin joins respectively, forms the light sensation control circuit thus, outdoor button K2 two ends are connected to 4 of diode D5 negative pole and NE555 in the delay circuit respectively, on 8 pin, when K switch 2 moments shutoff, by 4 of NE555,8 pin provide operating voltage to it, if photoresistance RL experiences high light, it is big that resistance becomes, give 2 of NE555 by resistance R 2RL, 6 pin provide input voltage, and when input voltage was higher than normal voltage 2/3,3 pin of NE555 knot ended, delay circuit is not worked, illuminating lamp does not work, if photoresistance RL impression during than decreased light, its resistance decreasing, as 2 of NE555,6 pin input voltages are lower than 1/3 o'clock of normal voltage, the 3 pin output of NE555 can be for the voltage of delay circuit operate as normal, relay work, and illuminating lamp is bright; Power circuit is given stable 9V voltage of electric bell circuit all the time by outdoor button K2, makes electric bell work.

Below in conjunction with the drawings and specific embodiments the utility model is elaborated.

Fig. 1 is the wiring diagram of the utility model Door bell with illumination.

Each parts all adopts standard component among the figure, wherein each model is as follows: diode D1, D2, D3, D4, D5, D6 are IN4007, and resistance R 1 is 10 kilohms, and R2 is 180 kilohms, capacitor C 1 is 220uf/16V, C2 is 2200uf/16V, and C3 is 0.01uf/16V, and photoresistance is φ 7, integrated package is NE555, relay is JZC-22F, and transformer is single head 220V/9V, and electric bell is the 9V DC ringer.

The 220V alternating voltage provides the direct-current working volts of a 9V for the Door bell with illumination circuit through transformer B, four diode D1--D4 bridge rectifiers and electrolytic capacitor filter C1.

Delay circuit is the two ends that are parallel to relay J by diode D5, the two ends of resistance R 1 are connected to the base stage of positive pole and the triode BG of electrochemical capacitor C2 respectively, the negative pole of electrochemical capacitor C2 is connected with the emitter of triode BG, the collector of triode BG be connected with the positive pole of diode D5 form.

The light sensation control circuit is by after resistance R 2, the photoresistance RL series connection, R2, RL two ends are connected to 1,2 pin and 6,8 and 4 pin of NE555 again, the positive pole of D6 is connected to 1,5 pin of NE555 and forms, and connects with power circuit after light sensation control circuit and the delay circuit parallel connection.

One of outdoor button K2 is terminated at the negative pole of D5, and the other end is connected to the tie point of 4,8 pin of NE555, and the two ends of electric bell are connected to 1,4 pin of NE555 respectively.

Indoor button K1 is connected to the negative pole of D5 and the positive pole of C2 respectively, and the electric bell two ends are connected to 1,4 pin of NE555 respectively.

Because present embodiment was through debugging, need not debugs again by this embodiment installation and to get final product operate as normal.

Claims

1, a kind of Door bell with illumination is linked in sequence by delay circuit, light sensation control circuit, power circuit, indoor and outdoor button and electric bell and forms, it is characterized in that: by resistance R 2, photoresistance RL, the light sensation control circuit that integrated package NE555, diode D6 and capacitor C 3 formed by button K2 be connected on the power circuit again after the delay circuit of being made up of relay J, triode BG, resistance R 1, electrochemical capacitor C2 is in parallel.

2, Door bell with illumination according to claim 1, it is characterized in that: after the light sensation control circuit is connected by resistance R 2, photoresistance RL, R2, RL two ends are connected to 1,2 pin and 6,8 and 4 pin of integrated package NE555 again, the positive pole of diode D6 is connected to 3 pin of NE555, and the two ends of capacitor C 3 are connected to 1,5 pin of NE555 respectively and form.

3, Door bell with illumination according to claim 1, it is characterized in that: delay circuit is the two ends that are parallel to relay J by diode D5, the two ends of resistance R 1 are connected to the base stage of positive pole and the triode BG of electrochemical capacitor C2 respectively, the negative pole of C2 is connected with the emitter of BG, and the collector of BG is connected and forms with the positive pole of D5.