CN216145262U - Be applicable to temperature measurement formula electric fire control detector circuit - Google Patents
Be applicable to temperature measurement formula electric fire control detector circuit Download PDFInfo
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- CN216145262U CN216145262U CN202121669389.0U CN202121669389U CN216145262U CN 216145262 U CN216145262 U CN 216145262U CN 202121669389 U CN202121669389 U CN 202121669389U CN 216145262 U CN216145262 U CN 216145262U
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Abstract
The utility model discloses a temperature measuring type electric fire monitoring detector circuit, which comprises a communication module, a power supply module, a monitoring module, a control module and a state indicating module, wherein the communication module and the monitoring module are connected with the control module, the communication module, the monitoring module and the control module are connected with the power supply module and then get electricity, the monitoring module is connected with the control module and then sends an alarm signal to the control module, the input end of the communication module is connected with a fourth wiring terminal, the utility model simplifies the connection relation among circuits, and has the advantages of low cost and stable operation due to the integrated design, temperature measurement by adopting a resistance voltage division method, fire-resistant connecting wires and further improved fire-proof effect.
Description
Technical Field
The utility model relates to the technical field of fire alarms, in particular to a temperature measuring type electric fire monitoring detector circuit.
Background
Along with rapid development of economy and science and technology, the density of urban personnel is continuously improved, more and more events occur in electrical fires, and according to statistics, most of the fires occur due to aging and ignition of electrical circuits in the fires. Therefore, prevention of electrical fire is an important part of fire protection. However, fire monitoring focuses on-site flame, smoke and the like for a long time, wires, electric appliances and the like in a cable well and a distribution box cannot be effectively monitored, and an electric fire monitoring system is developed along with the importance of people on electric fire. One such system is a temperature-sensing electrical fire monitoring detector, which can be used to monitor the temperature of the cable, thereby effectively preventing electrical fire.
The electrical fire monitoring system in the prior art is often a residual current type electrical fire monitoring detector, so that the production process of the electrical fire detector is complex, the operation is unstable, the overall manufacturing cost is high, only the residual current of an electric wire can be monitored, and the attention item is single.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a temperature-measuring type electric fire monitoring detector circuit to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a circuit suitable for a temperature measurement type electrical fire monitoring detector comprises a communication module, a power supply module, a monitoring module, a control module and a state indication module, wherein the communication module and the monitoring module are connected with the control module, the communication module, the monitoring module and the control module are connected with the power supply module and then get electricity, the monitoring module is connected with the control module and then sends an alarm signal to the control module, the input end of the communication module is connected with a fourth wiring terminal and is connected with an external signal source through the fourth wiring terminal, and the output end of the communication module is connected with the power supply module;
the communication module is connected with an address writing module, and the address writing module is connected with the control module;
preferably, the control module comprises a main control chip, the main control chip is a single chip microcomputer with fourteen pins, and the connection structure of each pin of the main control chip is as follows:
the first pin is connected with the power supply module and then gets electricity;
the fourth pin is connected with the power supply module and grounded;
the fifth pin is connected with the address writing module;
the sixth pin is connected with the communication module and then acquires a switching signal generated by the communication module;
the seventh pin is connected with the communication module and then acquires an amplified signal generated by the device;
the ninth pin is connected with a first indicating unit of the state indicating module;
a second indicating unit of the tenth pin connection state indicating module;
the thirteenth pin is connected with the monitoring module and then acquires a monitoring signal;
the fourteenth pin is grounded;
preferably, the fourth pin of the main control chip is connected to the power supply module through a seventh resistor, and the fourth pin of the main control chip is grounded through a ninth capacitor.
Preferably, the fifth pin of the main control chip is connected with the address writing module through a fourteenth resistor, and the fifth pin of the main control chip is connected with the power supply module through a tenth resistor.
Preferably, the first indicating unit of the status indicating module adopts a light emitting diode with a green light source color;
the second indicating unit adopts a light emitting diode with a red light source color.
Preferably, the communication module comprises a first transient voltage suppressor, a first rectifying unit, a switching signal generating unit, an amplified signal generating unit and a fourth connection terminal, the fourth connection terminal comprises a positive terminal and a negative terminal, wherein,
two ends of the first transient voltage suppressor are respectively left on two binding posts of the fourth binding post;
the input end of the first rectifying unit is connected to the two binding posts of the fourth wiring terminal, the output end of the first rectifying unit outputs rectifying signals, and the output end of the first rectifying unit is connected with the switching signal generating unit and the amplifying signal generating unit;
the output end of the switching signal generating unit is connected with the main control chip;
the output end of the amplification signal generation unit is connected with the main control chip;
preferably, the first rectifying unit is a diode rectifying bridge composed of four 1n4148 type switching diodes.
Preferably, the power supply module includes a first voltage stabilization unit and a second rectification unit, wherein,
the input end of the power supply module is connected with the rectification signal output end and the output end of the first rectification unit of the communication module to generate working voltage for the control module and the monitoring module to work;
the anode of the first voltage stabilizing unit is grounded, and the cathode of the first voltage stabilizing unit is connected with the input end of the second rectifying unit and the rectifying signal output end of the first rectifying unit of the communication module through a fourth triode;
the base electrode of the fourth triode is connected with the first voltage stabilizing unit, the emitting electrode of the fourth triode is connected with the input end of the second rectifying unit, and the collecting electrode of the fourth triode is connected with the rectifying signal output end of the first rectifying unit of the communication module;
the output end of the second rectifying unit generates working voltage for the control module and the monitoring module to work.
Preferably, the monitoring module comprises a ninth transient voltage suppression unit and a first connection terminal, the first connection terminal comprises a positive terminal and a negative terminal, and two poles of the ninth transient voltage suppression unit are respectively connected with the two terminals of the first connection terminal.
Preferably, the address writing module is a four-terminal connector having four pins configured as: the first pin and the fourth pin are connected with the output end of a first rectifying unit of the communication module, the second pin is connected with the fifth pin of the main control chip, and the third pin is connected with the fourteenth pin of the main control chip.
Compared with the prior art, the utility model has the beneficial effects that: the utility model simplifies the connection relation between circuits, and has the advantages of low cost and stable operation due to integrated design, and the temperature measurement by adopting a resistance voltage division method and the fireproof effect of the fireproof connecting wire are further improved.
Drawings
FIG. 1 is a schematic view of the structural connection of the present invention;
FIG. 2 is a schematic diagram of a control module according to the present invention;
FIG. 3 is a schematic diagram of a communication module according to the present invention;
FIG. 4 is a schematic diagram of a power module according to the present invention;
FIG. 5 is a schematic diagram of a monitoring module according to the present invention;
FIG. 6 is a schematic diagram of a novel address writing module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a be applicable to temperature measurement formula electric fire control detector circuit, including communication module 100, power module 200, monitoring module 300, control chip 400, status indication module 500, communication module 100 connects control chip 400, get the electricity after control chip 400 and monitoring module 300 connect power module 200, monitoring module 300 connects control chip 400 back and sends alarm signal to control chip 400, fourth binding post J4 is connected to communication module 100's input, connect external signal source through fourth binding post J4, in order to obtain external signal.
The output terminal of the communication module 100 is connected to the power module 200, so that the acquired external signal is transmitted to the power module 200, and then converted into the working voltage for the control chip 400 and the monitoring module 300.
The communication module 100 is further connected to an address writing module 600, and the address writing module 600 is connected to the control module 400.
The monitoring module 300 comprises a temperature measuring resistor, a connecting wire, a resistor R21, a first connecting terminal J1, and a second pin of R21 connected with R25, D9, C13 and R26; the other pin of the R25 is connected with a power supply, the other pins of the D9 and the C13 are grounded, the R26 is connected with an ADC0 pin of a main control chip U2 of the control chip 400, and the second binding post is grounded;
in some embodiments, the power module 200 may output an operating voltage of + 3.3V.
In some embodiments, referring to fig. 1 and 2, the control chip 400 includes a main control chip U2, the main control chip U2 is a single chip with fourteen pins, and the connection structure of the pins of the main control chip U2 is as follows:
the first pin is connected with the output end of the power supply module 200 to get electricity;
the second pin is used for inputting level, with programmable level pull-up and pin level change interruption, and crystal oscillator input;
the third pin is used for inputting level, with programmable level pull-up and pin level change interruption, and outputting by a crystal oscillator;
the fourth pin is connected with the power module 200 and the ground, and functions as a reset pin;
the fifth pin is connected with the address writing module;
the sixth pin is connected with the communication module 100 to obtain a switching signal generated by the communication module, and the switching signal is defined as an ANS pin;
the seventh pin is connected with the amplified signal generated by the acquirer after the communication module 100, and is defined as a DAT pin;
the eighth pin is used for inputting a level, and has programmable level pull-up, pin level change interruption and crystal oscillator output;
the first indication unit LED1 of the ninth pin connection status indication module 500 is used for indicating the working status;
the second indication unit LED2 of the tenth pin connection status indication module 500 for indicating the operation status;
the eleventh pin is a Schmitt trigger input level, and has programmable pull-up, pin change interruption and external interruption;
the twelfth pin is a Schmitt trigger input level, and has programmable pull-up, pin change interruption and external interruption;
a thirteenth pin is connected with the monitoring module and then acquires a monitoring signal, wherein the monitoring signal is defined as an ADCO pin;
the fourteenth pin is grounded;
in addition, a fifth capacitor C5 is connected between the first pin and the fourteenth pin,
a seventh resistor R7 is connected between the fourth pin and the power module 200,
a tenth resistor R10 is connected between the fifth pin and the power module 200.
In some preferred embodiments, the fourth pin of the main control chip U2 is grounded through a ninth capacitor C9.
In some preferred embodiments, the first indication unit LED1 is a light emitting diode with a green color, and the ninth pin of the main control chip U2 is connected to the first indication unit LED1 through a resistor R15.
In some preferred embodiments, the second indication unit LED2 is a red LED, and the ten pins of the main control chip U2 are connected to the second indication unit LED2 through a sixteenth resistor R16.
In some preferred embodiments, the master control chip U2 is a TINY24A type single chip.
In some embodiments, referring to fig. 1 and 3, the communication module 100 includes a first transient voltage suppressor D1, a first rectifying unit, a switching signal generating unit, an amplifying signal generating unit, and a fourth connection terminal J4, the fourth connection terminal J4 includes a positive terminal and a negative terminal, wherein,
two ends of the first transient voltage suppressor D1 are respectively connected to two connection rods of the fourth connection terminal J4;
the input end of the first rectifying unit is connected to the two connecting rod posts of the fourth connecting terminal J4, the output end of the first rectifying unit outputs a rectifying signal S + +, and the output end of the first rectifying unit is connected with the switching signal generating unit and the amplifying signal generating unit;
the output end of the amplification signal generation unit is connected with a DAT pin of the main control chip U2. The amplification signal generation unit comprises a first triode Q1, the first triode Q1 is an NPN type triode, the base electrode of the triode is grounded through a fourth resistor R4, the emitter electrode of the triode is grounded, the collector electrode of the triode is used as the output end of the amplification signal generation unit and is connected with the seventh pin of the main control chip U2, the collector electrode of the triode is further connected with the power module 200 through a fifth resistor R5 to obtain electricity, the base electrode of the first triode Q1 is further connected with the positive output end of the first rectification unit through a third resistor R3, a second resistor R2 and a first capacitor C1, the base electrode of the triode Q1 is connected with the S + + signal output end, and a fourteenth capacitor C14 is connected to the third resistor R3 and the fourth resistor R4 in parallel;
the output end of the switching signal generating unit is connected with an ANS pin of the main control chip U2, the switching signal generating unit comprises a second triode Q2 and a third triode Q3, the second triode Q2 is an NPN type triode, the third triode Q3 is a PNP type triode, the base electrode of the second triode Q2 is connected with the sixth pin of the main control chip U2 through a sixth resistor R6, the collector electrode of the second triode Q2 is connected with the base electrode of the third triode Q3, and the transmitter is grounded through a third sixteen resistor R36; the transmitter of the third triode Q3 is connected to the S + + signal output terminal of the first rectifying unit through an eighth resistor R8, the collector is grounded through a sixteenth resistor R36, and the base of the second triode Q2 is also grounded through a seventh resistor R7.
In some preferred embodiments, the first rectifying unit is a diode rectifying bridge composed of four 1n4148 type switching diodes, the four 1n4148 type switching diodes are diode D1, diode D2, diode D3 and diode D4, the positive pole of the output end outputs S + + signal, and the negative pole is grounded.
In some preferred embodiments, the first transistor Q1, the second transistor Q2 are 3904 transistors, the third transistor Q3 is 5401 transistors, and the first transient voltage suppressor D1 is an SMBJ36CA transient suppressor diode.
In some embodiments, referring to fig. 1 and 4, the power module 200 includes a first voltage stabilizing unit D6 and a second rectifying unit U1, wherein an input end of the power module 200 is connected to a positive electrode (S + + output end) of a rectified signal output end of the first rectifying unit of the communication module 100, and an output end generates a working voltage for the control chip 400 and the monitoring module 300 to operate;
the positive electrode of the first voltage stabilizing unit D6 is grounded, and the negative electrode is connected to the input terminal (vin terminal) of the second rectifying unit U1 and the rectified signal output terminal (S + + output terminal) of the first rectifying unit of the communication module 100 through the fourth transistor Q4, and in addition, a third capacitor C3 is connected between the positive electrode and the negative electrode of the first voltage stabilizing unit D6;
the fourth triode Q4 is an NPN type triode, a base of the fourth triode Q4 is connected to a negative electrode of the first voltage stabilization unit D6, an emitter thereof is connected to an input terminal of the second rectification unit U1 through an eleventh resistor R11, a collector thereof is connected to a rectified signal output terminal (S + + output terminal) of the first rectification unit of the communication module 100 through a ninth resistor R9, and a tenth resistor R10 is connected between the collector and the base of the fourth triode Q4; the output terminal of the second rectifying unit U1 generates an operating voltage for the control chip 400 and the monitoring module 300 to operate.
In some preferred embodiments, the first voltage regulation unit D6 employs a zener diode.
In some preferred embodiments, the second regulator unit U1 is a HT7133-1 type regulator chip, which has three pins, including a first pin grounded, a second pin as its input, a third pin as its output, a fourth capacitor C4 between the first pin and the second pin, and a fifth capacitor C5 between the first pin and the third pin.
In some embodiments, referring to fig. 1 and 5, the monitoring module 300 includes a first connection terminal J1 and a ninth transient voltage suppression unit D9, the first connection terminal J1 is connected to an external temperature measurement monitor to obtain related data, the J1 includes a first connection terminal 1 and a second connection terminal 2, two poles of the ninth transient voltage suppression unit D9 are respectively connected to two connection terminals of the first connection terminal J1, wherein a negative electrode of the ninth transient voltage suppression unit D9 is connected to the power module 200 through a twenty-fifth resistor R25, the first connection terminal 1 of the first connection terminal J1 is connected to an ADCO pin of the main control chip U2 through a twenty-first resistor R21 and a twenty-sixth resistor R26, a thirteenth capacitor C13 is further connected between the positive electrode and the negative electrode of the ninth transient voltage suppression unit D9, and the second connection terminal of the first connection terminal J1 is grounded.
In some preferred embodiments, the ninth transient voltage suppression unit D9 employs a TVS tube.
In some preferred embodiments, the TVS tube employs a model SMBJ10A diode.
In some embodiments, referring to fig. 1 and 6, the address writing module 600 employs a four-terminal connector having four pins, and the connection relationship between the four pins is: the first pin is connected with the positive output end (S + + end) of the first rectifying unit of the communication module 100, the second pin is connected with the fifth pin (WR pin) of the main control chip U2, the third pin is connected with the fourteenth pin of the main control chip U2, and the fourth pin is connected with the positive output section (S + + end) of the first rectifying unit of the communication module 100.
In some preferred embodiments, a fourteenth resistor R14 is connected between the second pin of the address writing module 600 and the fifth pin of the main control chip U2.
The working principle is as follows: j4 provides carrier signal for 100 modules, 100 modules decode and provide input signal for 400 modules, 400 modules provide driving signal for 500 modules to light LED (G), 100 modules provide voltage for 200 modules, 200 modules step down and provide power supply voltage for 300 modules and 400 modules, 400 modules detect 300 module alarm signal and provide driving signal for 500 modules to light LED (R).
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a be applicable to temperature measurement formula electric fire control detector circuit, includes communication module, power module, monitoring module, control module and status indication module, its characterized in that: the communication module and the monitoring module are connected with the control module, the communication module, the monitoring module and the control module are connected with the power module and then get electricity, the monitoring module is connected with the control module and then sends an alarm signal to the control module, the input end of the communication module is connected with a fourth wiring terminal, the communication module is connected with an external signal source through the fourth wiring terminal, and the output end of the communication module is connected with the power module;
the communication module is connected with an address writing module, and the address writing module is connected with the control module.
2. A temperature sensing electrical fire monitoring detector circuit according to claim 1, wherein: the control module comprises a main control chip, the main control chip is a single chip microcomputer with fourteen pins, and the connection structure of each pin of the main control chip is as follows:
the first pin is connected with the power supply module and then gets electricity;
the fourth pin is connected with the power supply module and grounded;
the fifth pin is connected with the address writing module;
the sixth pin is connected with the communication module and then acquires a switching signal generated by the communication module;
the seventh pin is connected with the communication module and then acquires an amplified signal generated by the device;
the ninth pin is connected with a first indicating unit of the state indicating module;
a second indicating unit of the tenth pin connection state indicating module;
the thirteenth pin is connected with the monitoring module and then acquires a monitoring signal;
the fourteenth pin is grounded.
3. A temperature sensing electrical fire monitoring detector circuit according to claim 2, wherein: and a fourth pin of the main control chip is connected with the power supply module through a seventh resistor, and the fourth pin of the main control chip is grounded through a ninth capacitor.
4. A temperature sensing electrical fire monitoring detector circuit according to claim 3, wherein: and a fifth pin of the main control chip is connected with the address writing module through a fourteenth resistor, and the fifth pin of the main control chip is connected with the power supply module through a tenth resistor.
5. A temperature sensing electrical fire monitoring detector circuit according to claim 4, wherein: a first indicating unit of the state indicating module adopts a light emitting diode with a green light source color;
the second indicating unit adopts a light emitting diode with a red light source color.
6. A temperature sensing electrical fire monitoring detector circuit according to claim 5, wherein: the communication module comprises a first transient voltage suppressor, a first rectifying unit, a switching signal generating unit, an amplifying signal generating unit and a fourth wiring terminal, wherein the fourth wiring terminal comprises a positive wiring terminal and a negative wiring terminal,
two ends of the first transient voltage suppressor are respectively left on two binding posts of a fourth binding post;
the input end of the first rectifying unit is connected to the two binding posts of the fourth wiring terminal, the output end of the first rectifying unit outputs rectifying signals, and the output end of the first rectifying unit is connected with the switching signal generating unit and the amplifying signal generating unit;
the output end of the switching signal generating unit is connected with the main control chip;
the output end of the amplification signal generation unit is connected with the main control chip.
7. A temperature sensing electrical fire monitoring detector circuit according to claim 6, wherein: the first rectifying unit is a diode rectifying bridge consisting of four 1n4148 type switching diodes.
8. A temperature sensing electrical fire monitoring detector circuit according to claim 7, wherein: the power supply module comprises a first voltage stabilizing unit and a second rectifying unit, wherein,
the input end of the power supply module is connected with the rectification signal output end and the output end of the first rectification unit of the communication module to generate working voltage for the control module and the monitoring module to work;
the positive electrode of the first voltage stabilizing unit is grounded, and the negative electrode of the first voltage stabilizing unit is connected with the input end of the second rectifying unit and the rectifying signal output end of the first rectifying unit of the communication module through a fourth triode;
the base electrode of the fourth triode is connected with the first voltage stabilizing unit, the emitting electrode of the fourth triode is connected with the input end of the second rectifying unit, and the collecting electrode of the fourth triode is connected with the rectifying signal output end of the first rectifying unit of the communication module;
and the output end of the second rectifying unit generates working voltage for the control module and the monitoring module to work.
9. A temperature sensing electrical fire monitoring detector circuit according to claim 8, wherein: the monitoring module comprises a ninth transient voltage suppression unit and a first wiring terminal, wherein the first wiring terminal comprises a positive wiring terminal and a negative wiring terminal, and two poles of the ninth transient voltage suppression unit are respectively connected with two wiring terminals of the first wiring terminal.
10. A temperature sensing electrical fire monitoring detector circuit according to claim 9, wherein: the address write module is a four-terminal connector having four pins configured as: the first pin and the fourth pin are connected with the output end of a first rectifying unit of the communication module, the second pin is connected with the fifth pin of the main control chip, and the third pin is connected with the fourteenth pin of the main control chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121669389.0U CN216145262U (en) | 2021-07-22 | 2021-07-22 | Be applicable to temperature measurement formula electric fire control detector circuit |
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| CN202121669389.0U CN216145262U (en) | 2021-07-22 | 2021-07-22 | Be applicable to temperature measurement formula electric fire control detector circuit |
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| CN216145262U true CN216145262U (en) | 2022-03-29 |
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| CN202121669389.0U Active CN216145262U (en) | 2021-07-22 | 2021-07-22 | Be applicable to temperature measurement formula electric fire control detector circuit |
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