CN208143550U - A kind of centrally connected power source type fire emergency monitoring circuit - Google Patents
A kind of centrally connected power source type fire emergency monitoring circuit Download PDFInfo
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- CN208143550U CN208143550U CN201820061756.0U CN201820061756U CN208143550U CN 208143550 U CN208143550 U CN 208143550U CN 201820061756 U CN201820061756 U CN 201820061756U CN 208143550 U CN208143550 U CN 208143550U
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Abstract
The utility model relates to a kind of centrally connected power source type fire emergencies to monitor circuit, including be serially connected in the circuit of emergency light sample circuit, with sample circuit and the detection circuit connect, the circuit for alarming for providing for detection circuit the power supply circuit of power supply and being connect with detection circuit output end；Detection circuit includes the sampling end connecting with sample circuit output end, the energization input connecting with power supply circuit, the control output end connecting with detection circuit.The utility model has the following technical effect that：1, using the operating mode of detection lamps and lanterns total current, the different type of the circuit structure and light source that consider lamp interior can be completely dispensed with, be conducive to the description for reducing emergency lighting module in production process, simplify production technology, improve production efficiency, circuit design essence is single, production cost is reduced, the stability and reliability of whole lamp are improved, and is conducive to reduce module volume, the small-sized lamps and lanterns that more multi items and specification can be matched, extend mating versatility.
Description
Technical field
The utility model relates to fire fighting lamp field, in particular to a kind of centrally connected power source type fire emergency monitoring electricity
Road.
Background technique
Nowadays as the development of construction process, the structure of the buildings such as mansion, venue become increasingly complex, Fire Fighting Construction is wanted
Ask also higher and higher.Therefore, it is necessary to the fire emergency lamps of setting are also more and more, fire emergency lamps include being always on type to disappear
Anti- lamps and lanterns and closed type fire fighting lamp, the type fire fighting lamp of being always on generally use centrally connected power source and are powered, wherein centrally connected power source
It is independently of a kind of power supply system of mains-supplied.
According to product standard technical requirements, centrally connected power source type fire-fighting emergency headlamp tool needs fault detection system.It is existing
Some emergency lighting modules are exactly the detection to light source failure realized by detection source current or voltage.For in a part
It sets the lamps and lanterns of driving, the lamps and lanterns of multiple light courcess and drags 2,1 florescent lamp fitting for dragging 3 electric ballasts to drive using 1, using existing
When having detection method, mating emergency lighting module kind is more, and mutually not general, and production mating technique is relatively also relatively more multiple
It is miscellaneous.This module often has multiple measure loops simultaneously, and component is more, and volume is big, at high cost.
Summary of the invention
In order to solve the above-mentioned technical problem the utility model, provides a kind of centrally connected power source type fire emergency monitoring electricity
Road.
A kind of centrally connected power source type fire emergency monitoring circuit, including the sampling being serially connected in the circuit of emergency light
Circuit, with the sample circuit and the detection circuit connect, provide for the detection circuit power supply power supply circuit and with it is described
The circuit for alarming of detection circuit output end connection；The detection circuit includes the sampling connecting with the sample circuit output end
End, the energization input being connect with the power supply circuit, the control output end being connect with the detection circuit.
Further, the circuit for alarming includes LED state indicating module；The LED state indicating module includes mutual
The cathode of the first LED light and the second LED light of reversal connection, second LED light connects the control output end, institute
The cathode for stating the first LED light connects the first reference voltage.
Further, the circuit for alarming includes buzzer module, and buzzer module enable end connects the control
Output end.
Further, the power supply circuit includes voltage stabilizing chip, first diode, the second diode, third diode,
One resistance, first capacitor, the second capacitor and inductance；The first diode anode connects power firestreak, and cathode is separately connected
It is grounded after first capacitor, cathode is also connected with the input terminal of the voltage stabilizing chip；The first electricity of output end connection of the voltage stabilizing chip
The second diode described in Opposite direction connection is grounded after resistance, while passing through energization input described in inductance connection；The third diode
Anode connects the energization input, and cathode connects the voltage stabilizing chip enable end, while cathode also passes through second capacitor
Connect the node between the first resistor and inductance.
Further, the detection circuit is single chip circuit.
Further, the detection circuit is window comparator circuit.
Further, the window comparator circuit includes first comparator, the second comparator, the 4th diode, the five or two
Pole pipe and feedback resistance；Described in the positive input terminal of the negative input end of the first comparator and the second comparator connects simultaneously
Sampling end；The positive input terminal of the first comparator connects the second reference voltage, the negative input end connection of second comparator
Third reference voltage；The output end of the output end of the first comparator and the second comparator distinguishes the four or two pole of Opposite direction connection
The control output end is connected after pipe and the 5th diode.
It further, further include the first fuse, first fuse is arranged in the firewire and the one or two pole
Between pipe.
It further, further include the second fuse, second fuse is arranged in the firewire and the emergency lighting
Between lamp.
Further, the sample circuit includes sampling resistor, and sampling resistor one end ground connection, the other end is connected to institute
The lower potential end of emergency light is stated, while connecting the sampling end.
A kind of centrally connected power source type fire emergency monitoring circuit of the utility model has the following technical effect that：
It 1, can be with using the operating mode of detection lamps and lanterns total current, therefore when facing various illuminators
The different type for completely dispensing with the circuit structure and light source that consider these lamp interiors, as long as the utility model centrally connected power source type
Fire emergency module accesses the power input of ordinary luminaire, this is advantageous for reducing emergency in production process
The description of lighting module simplifies production technology, improves production efficiency.
2, circuit design essence is single, not only reduces production cost, improves the stability and reliability of whole lamp, and advantageous
In reducing module volume, the small-sized lamps and lanterns of more multi items and specification can be matched, mating versatility is extended.
Detailed description of the invention
Fig. 1 is the systematic schematic diagram in the utility model
Fig. 2 is the circuit diagram of embodiment 1 in the utility model.
Fig. 3 is the detection circuit schematic diagram of embodiment 2 in the utility model.
Wherein, sample circuit 1, detection circuit 2, power supply circuit 3, warning circuit 4；Energization input is POW_IN, control
Output end CTRL, sampling end SAM.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It is easier to be readily appreciated by one skilled in the art with feature, to make apparent define to the protection scope of the utility model.
Embodiment 1：
A kind of centrally connected power source type fire emergency monitoring circuit, as shown in Figure 1, including sample circuit 1, detection circuit 2,
Power supply circuit 3 and warning circuit 4.Wherein, sample circuit 1 is used to carry out voltage and current to the emergency light in circuit to adopt
Collection, therefore it is serially connected in the circuit of emergency light.Detection circuit 2 then carries out pressure circulation to the electric current of sample circuit 1 and changes, and
And voltage is detected, judge whether present current value is normal value, and detection circuit sample circuit 1 simultaneously connects.Power supply circuit 3 is then
Power supply is provided for detection circuit 2, is arranged between power firestreak and detection circuit 2.Warning circuit 4 then with detection circuit 2
Output end connection, the testing result for response detection circuit.
Specifically, as shown in Fig. 2, the sample circuit 1 of the present embodiment includes a sampling resistor R5, sampling resistor R5 mono-
End ground connection, the other end are concatenated into the circuit where emergency light.While potential end is also the output of sample circuit on this
End.An inserting terminal CN1 is arranged in the present embodiment, and wherein inserting terminal CN1 includes four pins, and wherein L starts to exchange fire line, and N connects zero
Line, OUT1 connect the upper potential end of emergence lighting lamp, and OUT2 connects the lower potential end of emergence lighting lamp, by emergence lighting lamp two
End, which is connected in pin, can be completed connection.
At 2 aspect of detection circuit, detection circuit 2 includes the sampling end SAM connecting with sample circuit output end and power supply electricity
The energization input POW_IN of road connection, the energization input CTRL being connect with detection circuit.In the present embodiment, detection circuit is
Single chip circuit carries out data acquisition by the sampling end SAM that setting is connect with detection circuit, in order to convert the current into electricity
Pressure is provided with a resistance R4 between sampling end SAM and detection circuit, and resistance R4 converts electrical current into voltage, for monolithic
Electromechanical road is read out and analyzes.In addition, detection circuit is additionally provided with for power detection circuit, this is for power detection circuit for monitoring fire
The stability of line voltage.This includes the second resistance R2 and 3rd resistor R3 concatenated, second resistance R2 for power detection circuit
And the both ends of 3rd resistor R3 are separately connected the power supply signal test side of firewire and single chip circuit, to realize that circuit is steady
Fixed detection prevents from causing to report by mistake because of factors such as power-off.
Wherein, the corresponding relationship between the pin of single-chip microcontroller and each function end is as follows, and energization input POW_IN is corresponding
The 1st pin of single-chip microcontroller U1, energization input CTRL correspond to the 3rd pin and the 7th pin of single-chip microcontroller U1, and SAM pairs of sampling end
The 9th pin of single-chip microcontroller U1 is answered, power supply signal test side corresponds to the 5th pin of single-chip microcontroller U1.
At the aspect of power supply circuit 3, power supply circuit 3 includes voltage stabilizing chip U2, first diode D1, the second diode D2, the
Three diode D3, first resistor R1, first capacitor C1, the second capacitor C2 and inductance L1；First diode D1 anode connection electricity
Source firewire, cathode are grounded after being separately connected first capacitor C1, and cathode is also connected with the input terminal of voltage stabilizing chip U2；Voltage stabilizing chip U2's
Opposite direction connection the second diode D2 is grounded after output end connects first resistor R1, while passing through inductance connection energization input POW_
IN；Third diode D3 anode connects energization input POW_IN, and cathode connects the enable end voltage stabilizing chip U2, while cathode is also logical
Cross the node between the second capacitor C2 connection first resistor R1 and inductance L1.The circuit structure can be steadily by 220V power supply
It carries out stablizing decompression, mortgages stable energy to provide for detection circuit.
At 4 aspect of warning circuit, warning circuit 4 may include two kinds of type of alarms of audible alarm and photoelectric alarm,
In in terms of photoelectric alarm, including LED state indicating module；LED state indicating module includes the first LED indication being mutually reversely connected
The cathode of lamp LED1 and the second LED light LED2, the second LED light LED2 connect energization input CTRL, the first LED
The cathode of indicator light LED1 connects the first reference voltage.The value of first reference voltage between energization input CTRL high level and
Between low level, it is assumed that the high level and low level of energization input CTRL is respectively 5V and 0V, and the first reference voltage then can be with
For 2.5V to 3.5V.During photoelectric alarm, since the first LED light LED1 and the second LED light LED2 are mutual
For reversal connection, the two only has an indicator light in same situation and is lit.
Under normal circumstances, control energization input CTRL output is high level, at this point, the first LED light LED1
It is lit, the second LED light LED2 extinguishes.Otherwise when circuit abnormality occur, energization input CTRL exports high level, the
Two LED light LED2 are lit, and the first LED light LED1 extinguishes, therefore can be determined by the light on and off of viewing lamp
Whether circuit is normal.
It, can be as shown in Fig. 2, control single chip computer since detection circuit uses single chip circuit in the present embodiment
The fixed voltage of one of I/O pin output as the first reference voltage output terminal.It is also possible to control the I/O pin
Level and energization input CTRL level on the contrary, to reaching above-mentioned technical effect.
Further, circuit for alarming can also include buzzer module LS1, the connection power supply of the buzzer enable end module LS1
Input terminal CTRL.In the present embodiment, when buzzer enable end is low level, buzzer then starts to pipe, with energization input
The output logic of CTRL is corresponding.
Preferably, short circuit causes original part to be damaged in order to prevent, further includes the insurance of the first fuse F1 and second
Silk F2, the first fuse F1 is arranged between firewire and first diode D1, for protecting detection circuit internal component.Second
Fuse F2 is arranged between firewire and emergency light, for protecting emergence lighting lamp.
Embodiment 2：
The present embodiment the difference from embodiment 1 is that：Detection circuit in the present embodiment is window comparator circuit.
It is specific as shown, window comparator circuit include first comparator A1, the second comparator A2, the 4th diode D4,
5th diode D5 and feedback resistance R6；The positive input terminal of the negative input end of first comparator A1 and the second comparator A2 are same
When connect sampling end SAM；The positive input terminal of first comparator A1 connects the second reference voltage V2, the negative input end of the second comparator
Connect third reference voltage V3；The output end of the output end of first comparator A1 and the second comparator A2 distinguish Opposite direction connection the
Energization input CTRL is connected after four diode D4 and the 5th diode D5.
Wherein, the second reference voltage V2 is greater than third reference voltage V3 and is rationally set according to voltage condition of circuit when normal
The value for having set two reference voltages, when circuit is normal, the voltage Vi that sampling end SAM is sampled will be greater than third reference voltage V3
With less than the second reference voltage V2, first comparator A1 and the second comparator A2 export high level at this time, so Vo output is high
Level.
When circuit is in abnormal condition, the collected voltage of sampling end SAM will be greater than the second reference voltage V2 or be less than
Third reference voltage V3.
When the voltage Vi that sampling end SAM is sampled is greater than the second reference voltage V2, first comparator A1 is although defeated at this time
High level out, the second comparator A2 export low level, and the output voltage Vo of energization input CTRL is exported through the second comparator A2
The 5th diode D5 clamp at end, exports as low level.
When the voltage Vi that sampling end SAM is sampled is less than third reference voltage V3, first comparator A1 is although defeated at this time
High level out, but A2 exports low level, the output voltage Vo of energization input CTRL through the second comparator A2 output end the
Four diode D4 clamp, exports as low level.
Above-mentioned detection circuit can equally complete the detection of circuit state.
The embodiments of the present invention is explained in detail above in conjunction with attached drawing, but the utility model is not limited to
Above embodiment can also not depart from the utility model within the knowledge of a person skilled in the art
Various changes can be made under the premise of objective.
Claims (10)
1. a kind of centrally connected power source type fire emergency monitors circuit, it is characterised in that：Including being serially connected in returning for emergency light
Sample circuit in road with the sample circuit and the detection circuit connect, for the detection circuit provides the power supply circuit of power supply
And the circuit for alarming being connect with the detection circuit output end；The detection circuit includes connecting with the sample circuit output end
The sampling end that connects, the energization input being connect with the power supply circuit, the control output end being connect with the detection circuit.
2. centrally connected power source type fire emergency according to claim 1 monitors circuit, which is characterized in that the alarm electricity
Road includes LED state indicating module；The LED state indicating module includes the first LED light and second being mutually reversely connected
LED light, the cathode of second LED light connect the control output end, the cathode connection of first LED light the
One reference voltage.
3. centrally connected power source type fire emergency according to claim 1 or 2 monitors circuit, which is characterized in that the police
Telegraph circuit includes buzzer module, and buzzer module enable end connects the control output end.
4. centrally connected power source type fire emergency according to claim 1 monitors circuit, which is characterized in that the power supply electricity
Road include voltage stabilizing chip, first diode, the second diode, third diode, first resistor, first capacitor, the second capacitor with
And inductance；The first diode anode connects power firestreak, and cathode is grounded after being separately connected first capacitor, and cathode is also connected with institute
State the input terminal of voltage stabilizing chip；The second diode described in Opposite direction connection connects after the output end connection first resistor of the voltage stabilizing chip
Ground, while passing through energization input described in inductance connection；The third diode cathode connects the energization input, and cathode connects
Connect the voltage stabilizing chip enable end, while cathode is also by described in second capacitance connection between first resistor and inductance
Node.
5. centrally connected power source type fire emergency according to claim 1 monitors circuit, which is characterized in that the detection electricity
Road is single chip circuit.
6. centrally connected power source type fire emergency according to claim 1 monitors circuit, which is characterized in that the detection electricity
Road is window comparator circuit.
7. centrally connected power source type fire emergency according to claim 6 monitors circuit, which is characterized in that the window ratio
It include first comparator, the second comparator, the 4th diode, the 5th diode and feedback resistance compared with circuit；First ratio
The sampling end is connected simultaneously compared with the positive input terminal of the negative input end of device and the second comparator；The first comparator it is just defeated
Enter the second reference voltage of end connection, the negative input end of second comparator connects third reference voltage；The first comparator
Output end and the second comparator output end distinguish the 4th diode of Opposite direction connection and the 5th diode after connect the control
Output end processed.
8. centrally connected power source type fire emergency according to claim 4 monitors circuit, which is characterized in that further include first
Fuse, first fuse are arranged between the power firestreak and the first diode.
9. centrally connected power source type fire emergency according to claim 4 monitors circuit, which is characterized in that further include second
Fuse, second fuse are arranged between the power firestreak and the emergency light.
10. centrally connected power source type fire emergency according to claim 1 monitors circuit, which is characterized in that the sampling
Circuit includes sampling resistor, and sampling resistor one end ground connection, the other end is connected to the lower potential end of the emergency light, together
When connect the sampling end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820061756.0U CN208143550U (en) | 2018-01-15 | 2018-01-15 | A kind of centrally connected power source type fire emergency monitoring circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820061756.0U CN208143550U (en) | 2018-01-15 | 2018-01-15 | A kind of centrally connected power source type fire emergency monitoring circuit |
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| Publication Number | Publication Date |
|---|---|
| CN208143550U true CN208143550U (en) | 2018-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820061756.0U Active CN208143550U (en) | 2018-01-15 | 2018-01-15 | A kind of centrally connected power source type fire emergency monitoring circuit |
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| CN (1) | CN208143550U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068035A (en) * | 2020-09-10 | 2020-12-11 | 西安新摩尔半导体有限公司 | Power connection detection circuit and emergency lamp |
-
2018
- 2018-01-15 CN CN201820061756.0U patent/CN208143550U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068035A (en) * | 2020-09-10 | 2020-12-11 | 西安新摩尔半导体有限公司 | Power connection detection circuit and emergency lamp |
| CN112068035B (en) * | 2020-09-10 | 2023-04-07 | 西安新摩尔半导体有限公司 | Power connection detection circuit and emergency lamp |
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