CN217847234U - Alarm driving circuit and device - Google Patents
Alarm driving circuit and device Download PDFInfo
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- CN217847234U CN217847234U CN202220704610.XU CN202220704610U CN217847234U CN 217847234 U CN217847234 U CN 217847234U CN 202220704610 U CN202220704610 U CN 202220704610U CN 217847234 U CN217847234 U CN 217847234U
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Abstract
The utility model discloses an alarm driving circuit and a device, which are applicable to a sound alarm system, wherein the circuit comprises a first driving unit, a first switch, a second switch and a display unit; the first driving unit is used for receiving a control signal from the audible alarm system, generating a driving signal and outputting the driving signal to the first switch; a normally open loop in the first switch serves as a second driving unit; the auxiliary contact in the second switch, the alarm contact in the second switch and the auxiliary contact in the first switch form a feedback unit; the display unit is used for displaying the working state of the alarm according to the feedback signal. The utility model discloses alarm that can the different operating voltage of direct drive still has display function and monitor function, can the operating condition of direct display alarm to timely feedback alarm operating condition information is to sound alarm system, so that implement the control to the alarm, and then improves sound alarm system's reliability.
Description
Technical Field
The utility model relates to a sound alarm technical field especially relates to an alarm drive circuit and device.
Background
The acoustic alarm system has been widely used in the fields of urban air defense, plant emergency response, and mine emergency response. The audible alarm system controls an alarm connected to the drive device by sending a control signal to the drive device. The alarm on the market comprises single-phase alarms, three-phase alarms and other alarms driven by different working voltages, a driving device corresponding to power supply needs to be configured when the alarm is driven, and a driving device with universality is lacked, so that most of the driving devices are non-standard customized products, the generation period is long, the existing driving device is also lacked with a monitoring function, whether the driving device and the alarm break down or not can not be found in time, once an accident happens in a factory, the alarm cannot be started in time, and the alarm effect of the system is influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in that, to at least one defect that prior art exists, an alarm drive circuit and device are provided.
The utility model provides a technical scheme that its technical problem adopted is: an alarm driving circuit is configured to be suitable for an audible alarm system, and includes: the device comprises a first driving unit, a first switch, a second switch and a display unit;
the first driving unit is used for receiving a control signal from the audible alarm system and generating a driving signal to be output to the first switch;
a normally open loop in the first switch is used as a second driving unit for controlling the on-off of the alarm according to the driving signal; the auxiliary contact in the second switch, the alarm contact in the second switch and the auxiliary contact in the first switch form a feedback unit for generating a feedback signal representing the working state of the alarm; the first driving unit is connected with the second driving unit, and the feedback unit can be connected with the audible alarm system;
the display unit is connected with the feedback unit and used for displaying the working state of the alarm according to the feedback signal.
Preferably, in the alarm driving circuit of the present invention, the first switch includes a first contactor KM1, and the second switch includes a first circuit breaker QF1;
the normally open contact in the first contactor KM1 and the excitation coil in the first contactor KM1 constitute the second driving unit; the auxiliary contacts in the first contactor KM1, the auxiliary contacts in the first breaker QF1 and the alarm contacts in the first breaker QF1 constitute the feedback unit;
wherein, an eleventh auxiliary contact in the first circuit breaker QF1 is used as a signal power input terminal to connect a signal power, an eleventh auxiliary contact in the first circuit breaker QF1 is connected with a sixty-first auxiliary contact in the first contactor KM1 and a fifteenth alarm contact in the first circuit breaker QF1, a fourteenth auxiliary contact in the first circuit breaker QF1 is connected with a fifty-third auxiliary contact in the first contactor KM1, a fifty-fourth auxiliary contact in the first contactor KM1 is used as an operation state feedback terminal to be connected with the display unit, a twelfth auxiliary contact in the first circuit breaker QF1 is used as a stop state feedback terminal to be connected with a sixty-second auxiliary contact in the first contactor KM1 and the display unit, and a sixteenth alarm contact in the first circuit breaker QF1 is used as a fault state feedback terminal to be connected with the display unit;
the first normally open contact, the third normally open contact and the fifth normally open contact in the first circuit breaker QF1 are used as second power input ends to be connected with a second power supply, the second normally open contact, the fourth normally open contact and the sixth normally open contact in the first circuit breaker QF1 are correspondingly connected with the first normally open contact, the third normally open contact and the fifth normally open contact in the first contactor KM1, and the second normally open contact, the fourth normally open contact and the sixth normally open contact in the first contactor KM1 can be connected with the alarm.
Preferably, in the alarm driving circuit of the present invention, the driving unit includes a first relay K1;
the first end of the excitation coil in the first relay K1 is a control signal input end, the second end of the excitation coil in the first relay K1 is connected with a signal power supply ground, the second normally-open contact in the first relay K1 is connected with the first end of the excitation coil in the first contactor KM1, and the first normally-open contact in the first relay K1 and the second end of the excitation coil in the first contactor KM1 are respectively used as a first power supply input end to be connected with a first power supply.
Preferably, the alarm driving circuit of the present invention further comprises an electric energy meter;
the detection end of the electric energy meter is connected with the first normally open contact, the third normally open contact and the fifth normally open contact in the first contactor KM 1.
Preferably, the alarm driving circuit of the present invention further comprises a test button SB1 for testing whether the alarm is normal; the first end of the test button SB1 is connected with the eleventh auxiliary contact in the first circuit breaker QF1, and the second end of the test button SB1 is connected with the control signal input end.
Preferably, the alarm driving circuit of the present invention further comprises a first fuse FU1 and a second fuse FU2;
the first end of first fuse FU1 does the signal power input end, the second end of first fuse FU1 is connected eleventh auxiliary contact in the first circuit breaker QF1, the second end of second fuse FU2 is connected first normally open contact in the first relay K1, the second end of excitation coil in the first contactor KM1 is connected to the fourth end of second fuse FU2, the first end and the third end of second fuse FU2 do respectively as first power input end.
Preferably, in the alarm driving circuit of the present invention, the display unit includes a first diode D1, an operation status indicator light L1, a second diode D2, a stop status indicator light L2, a third diode D3, and a fault status indicator light L3;
the operating state feedback end is connected with the anode of the first diode D1, the cathode of the first diode D1 is connected to a signal power ground through the operating state indicator lamp L1, the stop state feedback end is connected with the anode of the second diode D2, the cathode of the second diode D2 is connected to the signal power ground through the stop state indicator lamp L2, the fault state feedback end is connected with the anode of the third diode D3, and the cathode of the third diode D3 is connected to the signal power ground through the fault state indicator lamp L3.
Preferably, in the alarm driving circuit of the present invention, a lamp testing unit for testing whether the display unit is normal is further included, and the lamp testing unit includes a fourth diode D4, a fifth diode D5, a sixth diode D6, and a seventh diode D7;
an anode of the fourth diode D4 serving as a lamp test signal input end may be connected to the audible alarm system, a cathode of the fourth diode D4 is simultaneously connected to an anode of the fifth diode D5, an anode of the sixth diode D6, and an anode of the seventh diode D7, a cathode of the fifth diode D5 is connected to a cathode of the first diode D1, a cathode of the sixth diode D6 is connected to a cathode of the second diode D2, and a cathode of the seventh diode D7 is connected to a cathode of the third diode D3.
The utility model also constructs an alarm driving device, which comprises a shell and at least one alarm driving circuit arranged in the shell; first switch, second switch and display element locate on the first face of casing, first drive unit sets up in the casing.
Preferably, the alarm driving device of the present invention further comprises a connection port set;
the wiring port group is arranged on the opposite surface of the first surface; the wiring port group is connected with the first driving unit, the first switch and the second switch.
The utility model discloses following beneficial effect has: there is provided an alarm driving circuit adapted for use in an audible alarm system, the circuit comprising: the device comprises a first driving unit, a first switch, a second switch and a display unit; the first driving unit is used for receiving a control signal from the audible alarm system, generating a driving signal and outputting the driving signal to the first switch; a normally open loop in the first switch is used as a second driving unit for controlling the on-off of the alarm according to the driving signal; the auxiliary contact in the second switch, the alarm contact in the second switch and the auxiliary contact in the first switch form a feedback unit for generating a feedback signal representing the working state of the alarm; the display unit is used for displaying the working state of the alarm according to the feedback signal; utilize first drive unit and second drive unit to change control signal, make alarm drive circuit can the different operating voltage's of direct drive alarm, still have display function and monitoring function, can the operating condition of direct display alarm to timely feedback alarm operating condition information to sound alarm system, so that implement the control to the alarm, and then improve sound alarm system's reliability.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a circuit diagram of an alarm driver circuit provided by the present invention;
fig. 2 is a first schematic view of a housing of the alarm driving device provided by the present invention;
fig. 3 is a schematic view of the opposite face of the first face of the housing in the alarm driving device provided by the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, the embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, the present invention constructs an alarm driving circuit suitable for an acoustic alarm system, the alarm driving circuit including: a first driving unit 10, a first switch, a second switch and a display unit 40.
The first driving unit 10 is configured to receive a control signal from the audible alarm system and generate a driving signal to be output to the first switch.
The normally open loop in the first switch serves as a second drive unit 20 for controlling the alarm to be switched on and off according to the drive signal.
The auxiliary contact 301 in the second switch, the alarm contact 302 in the second switch and the auxiliary contact 303 in the first switch constitute a feedback unit 30 for generating a feedback signal representing the operating state of the alarm. Specifically, the first driving unit 10 is connected to the second driving unit 20, and the feedback unit 30 may be connected to an audible alarm system, so that the audible alarm system can timely obtain the working state of the alarm, so as to monitor the subsequent alarm. In addition, the first driving unit and the second driving unit are matched with each other to perform level conversion on the control signal, so that the alarm driving circuit can directly drive alarms with different working voltages.
The display unit 40 is connected with the feedback unit 30, and the display unit 40 is used for displaying the working state of the alarm according to the feedback signal so as to judge whether the alarm is abnormal or not by combining the control signal.
As shown in fig. 1, in some embodiments, the first switch comprises a first contactor KM1 and the second switch comprises a first breaker QF1. The model of the first contactor KM1 may be LC1D18M7C, and the model of the first breaker QF1 may be iC65H-3P. Specifically, as shown in fig. 1, the first, second, third, fourth, fifth and sixth ends of the first contactor KM1 are normally open contacts in the first contactor KM1, the fifth thirteen, fifth fourteen, sixth eleventh and sixty ends of the first contactor KM1 are auxiliary contacts in the first contactor KM1, and the normally open loop in the first switch includes the normally open contact in the first contactor KM1 and the excitation coil in the first contactor KM 1; the first, second, third, fourth, fifth and sixth ends of the first circuit breaker QF1 are normally open contacts in the first circuit breaker QF1, the eleventh, fourteenth and tenth ends of the first circuit breaker QF1 are auxiliary contacts in the first circuit breaker QF1, and the fifteenth, sixteenth and eighteenth ends of the first circuit breaker QF1 are alarm contacts in the first circuit breaker QF1.
More specifically, the normally open contact of the first contactor KM1 and the exciting coil of the first contactor KM1 constitute a second driving unit 20; the auxiliary contacts in the first contactor KM1, the auxiliary contacts in the first breaker QF1 and the alarm contacts in the first breaker QF1 constitute a feedback unit 30.
The eleventh auxiliary contact in the first breaker QF1 is used as a signal power supply input end to connect a signal power supply, the eleventh auxiliary contact in the first breaker QF1 is connected with the sixty-first auxiliary contact in the first contactor KM1 and the fifteenth alarm contact in the first breaker QF1, the fourteenth auxiliary contact in the first breaker QF1 is connected with the fifty-third auxiliary contact in the first contactor KM1, the fifty-fourth auxiliary contact in the first contactor KM1 is used as an operating state feedback end to be connected with the display unit 40, the twelfth auxiliary contact in the first breaker QF1 is used as a stop state feedback end to be connected with the sixty-second auxiliary contact in the first contactor KM1 and the display unit 40, the sixteenth alarm contact in the first breaker QF1 is used as a fault state feedback end to be connected with the display unit 40, the first, the third and fifth normally open contacts in the first breaker QF1 are used as second power supply input ends to be connected with a second power supply, and the second, the fourth and sixth alarm contacts in the first breaker QF1 are connected with the fifth normally open contacts in the first normally open contactor KM1 and the fifth normally open contact, and the fifth alarm, and the fifth normally open contact in the first contactor KM1, and the fifth normally open contact, and the second normally open contactor KM1, and the fifth normally open contact can be connected with the second breaker QF1.
As shown in fig. 1, in some embodiments, the driving unit includes a first relay K1. Specifically, a first end of an excitation coil in the first relay K1 is used for receiving a control signal as a control signal input end, a second end of the excitation coil in the first relay K1 is connected with a signal power ground, a second normally open contact in the first relay K1 is connected with a first end of the excitation coil in the first contactor KM1, and a first normally open contact in the first relay K1 and a second end of the excitation coil in the first contactor KM1 are respectively used as a first power input end to be connected with a first power supply.
The first power supply input end is used for being connected with a power supply for driving the first contactor KM1, and the first power supply can be a 220V alternating current power supply; the second power supply is used for connecting a power supply for driving the alarm, and the second power supply can be a 220V alternating current power supply, a 380V alternating current power supply and a direct current power supply according to the working voltage of the alarm; the signal power supply is used for supplying power to the feedback unit 30 and the display unit 40, and may be a direct current power supply.
As shown in fig. 1, in some embodiments, the alarm driving circuit further comprises an electric energy meter; specifically, the detection end of the electric energy meter is connected with a first normally open contact, a third normally open contact and a fifth normally open contact in the first contactor KM 1. The electric energy meter is used for measuring the real-time power consumption of an alarm driven by the alarm driving circuit.
As shown in fig. 1, in some embodiments, the alarm driving circuit further includes a test button SB1 for testing whether the alarm is normal; a first end of the test button SB1 is connected to the eleventh auxiliary contact in the first breaker QF1, and a second end of the test button SB1 is connected to the control signal input terminal.
As shown in fig. 1, in some embodiments, the alarm driver circuit further includes a first fuse FU1, a second fuse FU2. Wherein, second fuse FU2 has two fuses to constitute, and first fuse FU 1's first end and second end correspond the both ends that are a fuse, and first fuse FU 1's third end and fourth end correspond the both ends that are another fuse.
Specifically, the first end of first fuse FU1 is signal power input end, and the eleventh auxiliary contact in first circuit breaker QF1 is connected to the second end of first fuse FU1, and the first normally open contact in first relay K1 is connected to the second end of second fuse FU2, and the second end of the excitation coil in first contactor KM1 is connected to the fourth end of second fuse FU2, and the first end and the third end of second fuse FU2 are regarded as first power input end respectively.
As shown in fig. 1, in some embodiments, the display unit 40 includes a first diode D1, an operation state indicator lamp L1, a second diode D2, a stop state indicator lamp L2, a third diode D3, and a fault state indicator lamp L3. Specifically, the operation state feedback end is connected to the anode of the first diode D1, the cathode of the first diode D1 is connected to the signal power ground through the operation state indicator L1, the stop state feedback end is connected to the anode of the second diode D2, the cathode of the second diode D2 is connected to the signal power ground through the stop state indicator L2, the fault state feedback end is connected to the anode of the third diode D3, and the cathode of the third diode D3 is connected to the signal power ground through the fault state indicator L3.
As shown in fig. 1, in some embodiments, the alarm driving circuit further includes a lamp testing unit for testing whether the display unit 40 is normal, which includes a fourth diode D4, a fifth diode D5, a sixth diode D6, and a seventh diode D7. Specifically, the anode of the fourth diode D4 as the lamp test signal input terminal may be connected to an audible alarm system, the cathode of the fourth diode D4 is simultaneously connected to the anode of the fifth diode D5, the anode of the sixth diode D6, and the anode of the seventh diode D7, the cathode of the fifth diode D5 is connected to the cathode of the first diode D1, the cathode of the sixth diode D6 is connected to the cathode of the second diode D2, and the cathode of the seventh diode D7 is connected to the cathode of the third diode D3.
As in fig. 1, in some embodiments, the alarm driving circuit further includes a second circuit breaker QF2 and a first disconnector QF3. The model of the second breaker QF2 can be iC65H-3P, and the model of the first isolating switch QF3 can be iINT125-3P.
Specifically, the input end of the second circuit breaker QF2 is a second power supply input end to be connected with a second power supply, the output end of the second circuit breaker QF2 is respectively connected with a first normally open contact, a third normally open contact and a fifth normally open contact in the first circuit breaker QF1, the input end of the first isolating switch QF3 is respectively connected with a second normally open contact, a fourth normally open contact and a sixth normally open contact in the first contactor KM1, and the output end of the first isolating switch QF3 can be connected with an alarm.
Referring to fig. 1, the alarm driving circuit operates as follows:
A. the working mechanism of the first contactor KM1 is as follows: the first, second, third, fourth, fifth and sixth normally open contacts in the first contactor KM1 constitute a three-way normally open circuit, if the first normally open contact and the second normally open contact are the first normally open circuit, the third normally open contact and the fourth normally open contact are the second normally open circuit, and the fifth normally open contact and the sixth normally open contact are the third normally open circuit; when the excitation coil in the first contactor KM1 is excited, the three-way normally open loop is closed, the fifty-third and fifty-fourth auxiliary contacts in the first contactor KM1 are closed, and the sixteenth and sixty-second auxiliary contacts in the first contactor KM1 are opened; on the contrary, when the excitation coil in the first contactor KM1 is demagnetized, the three-way normally-open circuit is opened, the fifty-third and fifty-fourth auxiliary contacts in the first contactor KM1 are opened, and the sixteenth and sixty-second auxiliary contacts in the first contactor KM1 are closed.
B. The working mechanism of the first circuit breaker QF1 is as follows: the first, second, third, fourth, fifth and sixth normally open contacts in the first circuit breaker QF1 form a three-way normally open circuit, if the first normally open contact and the second normally open contact are the first normally open circuit, the third normally open contact and the fourth normally open contact are the second normally open circuit, and the fifth normally open contact and the sixth normally open contact are the third normally open circuit; when the three normally open circuits are closed by poking an operating handle of the first circuit breaker QF1, the eleventh and fourteenth auxiliary contacts in the first circuit breaker QF1 are closed, and the eleventh and twelfth auxiliary contacts in the first circuit breaker QF1 are disconnected; when the three normally open circuits are opened, the eleventh and fourteenth auxiliary contacts in the first circuit breaker QF1 are opened, and the eleventh and twelfth auxiliary contacts in the first circuit breaker QF1 are closed; when the first circuit breaker QF1 has an alarm fault due to overcurrent or overvoltage, the three normally open circuits are immediately disconnected, the fifteenth alarm contact and the sixteenth alarm contact in the first circuit breaker QF1 are closed, and the fifteenth alarm contact and the sixteenth alarm contact in the first circuit breaker QF1 are disconnected when the first circuit breaker QF1 is in normal operation.
C. The alarm driving circuit is connected between the sound alarm system and the alarm, so that the first fuse FU1 and the second fuse FU2 are both closed, the first breaker QF1, the second breaker QF2 and the first isolating switch QF3 are switched on, at the moment, sixteenth and sixteenth auxiliary contacts of the first contactor KM1 are closed, and the anode of the second diode D2 is at a high level, so that the alarm at the rear stage of the sound alarm system is informed of being in a stop state, and the stop state indicator lamp L2 is lightened; when a control signal for starting an alarm device from an audible alarm system is received, the first relay K1 is electrified and excited, the first normally open contact and the second normally open contact of the first relay K1 are closed to serve as driving signals, so that a power supply loop between a first power supply and an excitation coil of the first contactor KM1 is conducted, the first contactor KM1 is excited, three normally open loops in the first contactor KM1 are closed, a power supply loop between a second power supply and the alarm device is conducted, the alarm device gives an alarm, at the moment, an eleventh auxiliary contact and a fourteenth auxiliary contact in the first breaker QF1 are closed, a fifty-third auxiliary contact and a fifty-fourth auxiliary contact in the first contactor KM1 are closed, and the anode of the first diode D1 is switched to be high level, so that the alarm device at the rear stage of the audible alarm system is informed of being in an audible running state, and a running state indicator lamp L1 is lightened; when the alarm fault occurs due to overcurrent or overvoltage caused by the fault of the alarm or the fault of the second power supply or other reasons, the three-way normally open circuit of the first circuit breaker QF1 is immediately opened to avoid aggravation of the fault accident as much as possible, the fifteenth alarm contact and the sixteenth alarm contact in the first circuit breaker QF1 are closed, and the anode of the third diode D3 is switched to the high level, so that the alarm driving circuit or the alarm at the rear stage of the audible alarm system is informed of being in the fault state, and the fault state indicator lamp L3 is lightened. In addition, when a lamp test signal from the audible alarm system is received, the anode of the fourth diode D4 is switched to a high level, which is equivalent to simultaneously turning on the operation status indicator lamp L1, the stop status indicator lamp L2, and the fault status indicator lamp L3, and further observing whether the status indicator lamps are normal; when the test button SB1 is pressed, it is equivalent to manually inputting a control signal to start the alarm device of the subsequent stage, and whether the alarm device is started or not can be observed, thereby determining whether the alarm driving circuit and the alarm device are abnormal or not.
The utility model also constructs an alarm drive arrangement, be equipped with at least one in casing and the casing the utility model provides an alarm drive circuit.
Referring to fig. 2, in some embodiments, two alarm driving circuits provided by the present invention are disposed in the housing to simultaneously drive two unlimited types of alarms, such as a large alarm and a small alarm. Specifically, the second switch and display unit 40 is disposed on the first surface of the housing, so that a user can toggle the operation rod of the switch and view the display unit; the first drive unit 10 is disposed within the housing.
As shown in fig. 3, in some embodiments, the alarm driver further includes a wiring port set 80. Specifically, the wiring port group 80 is disposed on the opposite surface of the first surface, and extends the port connected with the outside to the outside of the housing for wiring and management, such as connecting the ports of the first power supply, the second power supply, the signal power supply and the alarm; the connection port group 80 connects the first driving unit 10, the first switch, and the second switch.
It can understand, the utility model discloses an utilize first drive unit and second drive unit to change control signal, make alarm drive circuit can the different operating voltage's of direct drive alarm to still have display function and monitor function, with the operating condition of direct display alarm, and in time feed back alarm operating condition information to sound alarm system, so that implement the control to the alarm, and then improve sound alarm system's reliability.
It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. An alarm driving circuit adapted for use in an audible alarm system, comprising: a first driving unit (10), a first switch, a second switch and a display unit (40);
the first driving unit (10) is used for receiving a control signal from the audible alarm system and generating a driving signal to be output to the first switch;
a normally open loop in the first switch is used as a second driving unit (20) for controlling the on-off of the alarm according to the driving signal; an auxiliary contact (301) in the second switch, an alarm contact (302) in the second switch and an auxiliary contact (303) in the first switch form a feedback unit (30) for generating a feedback signal representing the working state of the alarm; the first drive unit (10) is connected with the second drive unit (20), and the feedback unit (30) can be connected with the audible alarm system;
and the display unit (40) is connected with the feedback unit (30) and is used for displaying the working state of the alarm according to the feedback signal.
2. The alarm driving circuit according to claim 1, wherein the first switch comprises a first contactor KM1, and the second switch comprises a first circuit breaker QF1;
the normally open contact of the first contactor KM1 and the exciting coil of the first contactor KM1 constitute the second driving unit (20); the auxiliary contacts in the first contactor KM1, the auxiliary contacts in the first breaker QF1 and the alarm contacts in the first breaker QF1 constitute the feedback unit (30);
wherein an eleventh auxiliary contact in the first circuit breaker QF1 serves as a signal power input terminal for connecting a signal power source, an eleventh auxiliary contact in the first circuit breaker QF1 connects a sixty-first auxiliary contact in the first contactor KM1 and a fifteenth alarm contact in the first circuit breaker QF1, a fourteenth auxiliary contact in the first circuit breaker QF1 connects a fifty-third auxiliary contact in the first contactor KM1, a fifty-fourth auxiliary contact in the first contactor KM1 serves as an operating state feedback terminal for connecting the display unit (40), a twelfth auxiliary contact in the first circuit breaker QF1 serves as a stop state feedback terminal for connecting a sixty-second auxiliary contact in the first contactor KM1 and the display unit (40), and a sixteenth alarm contact in the first circuit breaker QF1 serves as a fault state feedback terminal for connecting the display unit (40);
the first, third and fifth normally open contacts in the first circuit breaker QF1 are second power input ends to be connected with a second power supply, the second, fourth and sixth normally open contacts in the first circuit breaker QF1 are correspondingly connected with the first, third and fifth normally open contacts in the first contactor KM1, and the second, fourth and sixth normally open contacts in the first contactor KM1 can be connected with the alarm.
3. The alarm driving circuit according to claim 2, wherein the driving unit includes a first relay K1;
the first end of the excitation coil in the first relay K1 is a control signal input end, the second end of the excitation coil in the first relay K1 is connected with a signal power supply ground, the second normally-open contact in the first relay K1 is connected with the first end of the excitation coil in the first contactor KM1, and the first normally-open contact in the first relay K1 and the second end of the excitation coil in the first contactor KM1 are respectively used as a first power supply input end to be connected with a first power supply.
4. The alarm driving circuit according to claim 3, further comprising an electric energy meter;
the detection end of the electric energy meter is connected with the first normally open contact, the third normally open contact and the fifth normally open contact in the first contactor KM 1.
5. The alarm driving circuit according to claim 3, further comprising a test button SB1 for testing whether the alarm is normal; the first end of the test button SB1 is connected with the eleventh auxiliary contact in the first circuit breaker QF1, and the second end of the test button SB1 is connected with the control signal input end.
6. The alarm driving circuit according to claim 3, further comprising a first fuse FU1, a second fuse FU2;
the first end of first fuse FU1 does the signal power input end, the second end of first fuse FU1 is connected eleventh auxiliary contact in the first circuit breaker QF1, the second end of second fuse FU2 is connected first normally open contact in the first relay K1, the second end of excitation coil in the first contactor KM1 is connected to the fourth end of second fuse FU2, the first end and the third end of second fuse FU2 do respectively as first power input end.
7. The alarm driving circuit according to any one of claims 2 to 6, wherein the display unit (40) includes a first diode D1, an operation status indicator lamp L1, a second diode D2, a stop status indicator lamp L2, a third diode D3, and a fault status indicator lamp L3;
the operating state feedback end is connected with the anode of the first diode D1, the cathode of the first diode D1 is connected to a signal power ground through the operating state indicator lamp L1, the stop state feedback end is connected with the anode of the second diode D2, the cathode of the second diode D2 is connected to the signal power ground through the stop state indicator lamp L2, the fault state feedback end is connected with the anode of the third diode D3, and the cathode of the third diode D3 is connected to the signal power ground through the fault state indicator lamp L3.
8. The alarm driving circuit according to claim 7, further comprising a lamp testing unit for testing whether the display unit (40) is normal, which includes a fourth diode D4, a fifth diode D5, a sixth diode D6, and a seventh diode D7;
an anode of the fourth diode D4 serving as a lamp test signal input end may be connected to the audible alarm system, a cathode of the fourth diode D4 is simultaneously connected to an anode of the fifth diode D5, an anode of the sixth diode D6, and an anode of the seventh diode D7, a cathode of the fifth diode D5 is connected to a cathode of the first diode D1, a cathode of the sixth diode D6 is connected to a cathode of the second diode D2, and a cathode of the seventh diode D7 is connected to a cathode of the third diode D3.
9. An alarm driving device, comprising a housing, and at least one alarm driving circuit according to any one of claims 1 to 8 provided in the housing; the second switch and display unit (40) is arranged on the first surface of the shell, and the first driving unit (10) is arranged in the shell.
10. The alarm driving device according to claim 9, further comprising a wiring port set (80);
the wiring port set (80) is disposed on an opposite side of the first face; the wiring port group (80) is connected with the first driving unit (10), the first switch and the second switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220704610.XU CN217847234U (en) | 2022-03-29 | 2022-03-29 | Alarm driving circuit and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220704610.XU CN217847234U (en) | 2022-03-29 | 2022-03-29 | Alarm driving circuit and device |
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| CN217847234U true CN217847234U (en) | 2022-11-18 |
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| CN202220704610.XU Active CN217847234U (en) | 2022-03-29 | 2022-03-29 | Alarm driving circuit and device |
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| CN (1) | CN217847234U (en) |
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