CN204102269U - A kind of limit sound doorbell circuit - Google Patents
A kind of limit sound doorbell circuit Download PDFInfo
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- CN204102269U CN204102269U CN201420585066.7U CN201420585066U CN204102269U CN 204102269 U CN204102269 U CN 204102269U CN 201420585066 U CN201420585066 U CN 201420585066U CN 204102269 U CN204102269 U CN 204102269U
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- diode
- doorbell
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- resistance
- circuit
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Abstract
The utility model discloses a kind of limit sound doorbell circuit, belong to household appliance technical field, described circuit comprises transformer, first, second pushbutton switch, first, second, third, fourth, the 5th, the 6th diode, first, second, third resistance, charging capacitor, filter capacitor, first, second triode, relay, loudspeaker, accumulator and LED neon bulb; This doorbell circuit makes doorbell have the function of limit sound, even if having people's mischief when not stopping to ring a doorbell, after doorbell also only first can ring a period of time, then just occur that the tinkle of bells interrupts a period of time, the time interval one timing circuit again pressing doorbell could be connected, also can jingle bell again, thus avoid continuous print doorbell sound to cause to household bothering.Can also adjust ring time and the tinkle of bells break period by the design of components and parts in circuit, this doorbell circuit structure is simple, and design is convenient, has good practicality.
Description
Technical field
The utility model relates to household appliance technical field, specifically relates to a kind of limit sound doorbell circuit.
Background technology
Along with the development of society, doorbell in the market has a variety of, such as there are Line Doorbell, wireless doorbell etc., but no matter there are Line Doorbell, wireless doorbell or other types doorbell, there is the shortcoming that common, exactly when having people's mischief or impatient visiting person to ring a doorbell by the individual not stopping time, continuous print doorbell sound may affect the normal rest of family child or old man, and impact is physically and mentally healthy.
Therefore, a kind of novel doorbell is needed.
Utility model content
Goal of the invention: in order to overcome the deficiencies in the prior art, the utility model provides a kind of limit sound doorbell circuit, the design of this doorbell circuit can realize the limit sound function of doorbell, when can not affect doorbell use shortly, continuous print doorbell sound also can be avoided to cause puzzlement to household.
Technical scheme: for solving the problems of the technologies described above, a kind of limit sound doorbell circuit of the present utility model, comprise transformer TR1, first, second pushbutton switch S1, S2, the first, second, third, fourth, the 5th, the 6th diode D1, D2, D3, D4, D5, D6, first, second, third resistance R1, R2, R3, charging capacitor C1, filter capacitor C2, first, second triode T1, T2, relay K 1, loudspeaker;
Wherein, described first, second, third, fourth diode D1, D2, D3, D4 tetra-diodes form a diode rectifier bridge loop, described transformer TR1 low-voltage side coil one end is connected between described first diode D1 and described 3rd diode D3 by described first pushbutton switch S1, the described transformer low voltage lateral coil other end is connected between described second diode D2 and described 4th diode D4, and two ends, described diode rectifier bridge loop are in parallel with described filter capacitor C2, described 5th diode D5, it is in parallel with described filter capacitor C2 again after described second resistance R2 and described charging capacitor C1 connects successively, described first triode T1 is connected to the positive terminal of described charging capacitor C1 by described 3rd resistance R3, described 6th diode D6 connects with described second triode T2 with after the parallel connection of described relay K 1 again, the base terminal of described second triode T2 is connected to the collector terminal of described first triode T1, described first resistance R1 is connected to the collector terminal of described first triode T1, one end of described loudspeaker is connected to the auxiliary node of described relay K 1, the other end of described loudspeaker and described first, second triode T1, the emitter terminal of T2 connects.
Further, also comprise an accumulator, described accumulator is connected to the positive terminal of described filter capacitor by described second pushbutton switch.Doorbell provides electric power by family expenses 220V alternating current under normal circumstances, but when occurring that power failure 220V AC-powered is interrupted, can enable storage battery power supply, and doorbell can be kept so always in running order.
Further, also comprise a LED neon bulb, described LED neon bulb is connected in parallel on described loudspeaker two ends.Can along with the flicker of LED neon bulb while doorbell sounds, the people that can conveniently become deaf sees that the flicker of light and then judgement have visitor, and if fault has appearred in loudspeaker, whether household can be glimmered by light has judged whether visitor.
Further, the described first pushbutton switch self-resetting button switch that adopts common alternating current doorbell special.Structure is simple, easy to connect, practical and insulating property are good.
Further, IN4002 model diode selected by described first, second, third, fourth diode, and IN4148 model diode selected by described 5th, the 6th diode.BC457 model triode selected by first, second triode described.Convenient and practical, switching performance is good.
Beneficial effect: a kind of novel doorbell circuit of the utility model research and development, this doorbell circuit makes doorbell have the function of limit sound, even if having under people's mischief do not stop the situation of ringing a doorbell, also can the time that ring time and doorbell the tinkle of bells interrupt be remained in the regular hour, and ring time and the tinkle of bells break period can be adjusted by the design of the components and parts in circuit, when can not affect doorbell use shortly, also continuous print doorbell sound can be avoided to cause puzzlement to household, this doorbell circuit structure is simple, design is convenient, has good practicality.
Accompanying drawing explanation
Fig. 1 is a kind of limit glottis bell circuit theory diagrams.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1, a kind of limit sound doorbell circuit of the present utility model, described circuit comprises transformer TR1, first, second pushbutton switch S1, S2, the first, second, third, fourth, the 5th, the 6th diode D1, D2, D3, D4, D5, D6, first, second, third resistance R1, R2, R3, charging capacitor C1, filter capacitor C2, first, second triode T1, T2, relay K 1 and loudspeaker;
Wherein, four diodes comprise first, second, 3rd, 4th diode D1, D2, D3, D4 forms a diode rectifier bridge loop, this diode rectifier bridge loop has the function of rectification, described transformer TR1 low-voltage side coil one end is connected between described first diode D1 and described 3rd diode D3 by described first pushbutton switch S1, the described transformer low voltage lateral coil other end is connected between described second diode D2 and described 4th diode D4, described diode rectifier bridge loop is in parallel with described filter capacitor C2, described filter capacitor C2 transfers direct current to by after current filtering, described 5th diode D5, it is in parallel with described filter capacitor C2 again after described second resistance R2 and described charging capacitor C1 connects successively, described first triode T1 is connected to the positive terminal of described charging capacitor C1 by described 3rd resistance R3, described 6th diode D6 connects with described second triode T2 with after the parallel connection of described relay K 1 again, the base stage of described second triode T2 is connected to the collector terminal of described first triode T1, described first resistance R1 is connected to the collector terminal of described first triode T1, one end of described loudspeaker is connected to the auxiliary node of described relay K 1, the other end of described loudspeaker and described first, second triode T1, the emitter terminal of T2 connects, final formation loop,
Coil two ends, described transformer TR1 high-pressure side connect AC power, and doorbell provides electric power by family expenses 220V alternating current under normal circumstances;
Preferably, also comprise an accumulator, described accumulator is connected to the positive terminal of described filter capacitor by described second pushbutton switch.Doorbell provides electric power by family expenses 220V alternating current under normal circumstances, but when occurring that power failure 220V AC-powered is interrupted, can enable storage battery power supply, and doorbell can be kept so always in running order.
Preferably, also comprise a LED neon bulb, described LED neon bulb is connected in parallel on described loudspeaker two ends.Can along with the flicker of LED neon bulb while doorbell sounds, the people that can conveniently become deaf sees that the flicker of light and then judgement have visitor, and if fault has appearred in loudspeaker, whether household can be glimmered by light has judged whether visitor.
Preferably, the described first pushbutton switch self-resetting button switch that adopts common alternating current doorbell special.Structure is simple, easy to connect, practical and insulating property are good.
Preferably, IN4002 model diode selected by described first, second, third, fourth diode, and IN4148 model diode selected by described 5th, the 6th diode.BC457 model triode selected by first, second triode described.Convenient and practical, switching performance is good.
When doorbell of the present utility model uses, doorbell button switch S 1 is pressed when there being people, whole doorbell circuit is connected to AC power and in running order due to S1 closed, alternating voltage on doorbell first by passing through again the rectifier bridge loop commutation of D1 ~ D4 tetra-diodes compositions after transformer TR1 step-down, transfers direct current to by after filter capacitor C2 filtering after rectification again.Because charging capacitor C1 initial voltage is zero, triode T1 ends because base voltage is low, and now triode T2 is conducting state, makes relay K 1 adhesive, and doorbell circuit is connected, and the tinkle of bells sounds, neon bulb flicker simultaneously.
When there being people to press doorbell continuously, along with the continuous charging to electric capacity C1, the voltage of charging capacitor C1 constantly raises, when the voltage of C1 is elevated to a certain degree, make triode T1 conducting, and now triode T2 ends, doorbell circuit disconnects, the tinkle of bells interrupts, the voltage of charging capacitor C1 rises to from 0 and to a certain degree makes triode T1 conducting, time (the ring time of this process, be generally 2 ~ 5s) therefore may be limited in the regular hour, and the duration of charging of electric capacity C1 i.e. the maximum duration of jingle bell are determined by resistance R2 resistance, if electric capacity C1 and resistance R3 remains unchanged, the resistance reducing resistance R2 can cause the C1 duration of charging elongated, the doorbell the tinkle of bells duration increases.
After unclamping doorbell button switch S 1, electric capacity C1 is slowly discharged by the base stage of resistance R3 and triode T1 and emitter, only have when the voltage drop on C1 to a certain extent time, triode T1 could end, (the tinkle of bells break period time of this process, be generally 7 ~ 10s) also may be limited in the regular hour, the discharge time i.e. shortest time interval of twice jingle bell of C1 is determined by the resistance of resistance R3, namely electric capacity C1 and resistance R2 remains unchanged, resistance R3 becomes large, C1 shortens discharge time, the time shorten that doorbell the tinkle of bells interrupts.Triode T1 ends, and when now again pressing S1, doorbell circuit could be connected, and the tinkle of bells could sound again.
If someone rings a doorbell impatiently, only press the time interval one timing (interval time is the tinkle of bells break period: 7 ~ 10s) at twice, doorbell just can sound again.
Like this when doorbell can not be affected to be used, even if someone rings a doorbell by continuous print, also only first 2 ~ 5s can be rung, then just occur that the tinkle of bells interrupts 7 ~ 10s, again press the time interval one timing (interval time is the tinkle of bells break period: 7 ~ 10s) of doorbell, circuit could be connected, can jingle bell again; Thus continuous print doorbell sound also can be avoided to cause puzzlement to household.
When doorbell uses, can along with the flicker of LED neon bulb while doorbell sounds, the people that can conveniently become deaf sees that the flicker of light and then judgement have visitor, and if fault has appearred in loudspeaker, whether household can be glimmered by light has judged whether visitor.
Embodiment, in the utility model embodiment, rectifier diodes D1 ~ D4 model is IN4002; Filter capacitor C2 and charging capacitor C1 is 25V/100 μ F; Diode D5, D6 are IN4148; Triode T1, T2 model is BC457; Resistance R1=4.7K Ω, R2=1500 K Ω, R3=47 K Ω; Relay working voltage electric current is 12V/1A.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a limit sound doorbell circuit, it is characterized in that: comprise transformer (TR1), first, second pushbutton switch (S1, S2), first, second, third, fourth, the 5th, the 6th diode (D1, D2, D3, D4, D5, D6), first, second, third resistance (R1, R2, R3), charging capacitor (C1), filter capacitor (C2), first, second triode (T1, T2), relay (K1), loudspeaker;
Wherein, described first, second, third, fourth diode (D1, D2, D3, D4) four diodes form a diode rectifier bridge loop, described transformer (TR1) low-voltage side coil one end is connected between described first diode (D1) and described 3rd diode (D3) by described first pushbutton switch (S1), the described transformer low voltage lateral coil other end is connected between described second diode (D2) and described 4th diode (D4), and two ends, described diode rectifier bridge loop are in parallel with described filter capacitor (C2), described 5th diode (D5), described second resistance (R2) and described charging capacitor (C1) are in parallel with described filter capacitor (C2) again after connecting successively, described first triode (T1) is connected to the positive terminal of described charging capacitor (C1) by described 3rd resistance (R3), described 6th diode (D6) is connected with described second triode (T2) with after described relay (K1) parallel connection again, the base terminal of described second triode (T2) is connected to the collector terminal of described first triode (T1), described first resistance (R1) is connected to the collector terminal of described first triode (T1), one end of described loudspeaker is connected to the auxiliary node of described relay (K1), the other end of described loudspeaker and described first, second triode (T1, T2) emitter terminal connects.
2. a kind of limit sound doorbell circuit according to claim 1, is characterized in that: also comprise an accumulator, and described accumulator is connected to the positive terminal of described filter capacitor (C2) by described second pushbutton switch (S2).
3. a kind of limit sound doorbell circuit according to claim 2, it is characterized in that: also comprise a LED neon bulb, described LED neon bulb is connected in parallel on described loudspeaker two ends.
4. a kind of limit sound doorbell circuit according to claim 3, is characterized in that: the self-resetting button switch that described first pushbutton switch (S1) adopts common alternating current doorbell special.
5. a kind of limit sound doorbell circuit according to claim 4, it is characterized in that: first, second, third, fourth, (D1, D2, D3, D4) selects IN4002 model diode, IN4148 model diode selected by described 5th, the 6th diode (D5, D6).
6. a kind of limit sound doorbell circuit according to claim 5, is characterized in that: described first, second triode (T1, T2) selects BC457 model triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585066.7U CN204102269U (en) | 2014-10-11 | 2014-10-11 | A kind of limit sound doorbell circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585066.7U CN204102269U (en) | 2014-10-11 | 2014-10-11 | A kind of limit sound doorbell circuit |
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| Publication Number | Publication Date |
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| CN204102269U true CN204102269U (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420585066.7U Expired - Fee Related CN204102269U (en) | 2014-10-11 | 2014-10-11 | A kind of limit sound doorbell circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107610384A (en) * | 2017-11-08 | 2018-01-19 | 陈永 | A kind of Novel doorbell |
-
2014
- 2014-10-11 CN CN201420585066.7U patent/CN204102269U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107610384A (en) * | 2017-11-08 | 2018-01-19 | 陈永 | A kind of Novel doorbell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20151011 |
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| EXPY | Termination of patent right or utility model |