CN210924861U - Door magnetic switch circuit - Google Patents
Door magnetic switch circuit Download PDFInfo
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- CN210924861U CN210924861U CN201922108514.XU CN201922108514U CN210924861U CN 210924861 U CN210924861 U CN 210924861U CN 201922108514 U CN201922108514 U CN 201922108514U CN 210924861 U CN210924861 U CN 210924861U
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Abstract
The utility model relates to a fire alarm technical field, concretely relates to door magnetic switch circuit. A gate magnetic switch circuit comprises a main control module, a communication module, a power supply module and a feedback module, wherein the communication module is connected with the main control module, the main control module and the feedback module are connected with the power supply module and then get electricity, the feedback module is connected with the main control module and then sends a feedback signal to the main control module, and the input end of the communication module is connected with a first wiring terminal and is connected with an external signal source through the first wiring terminal; the output end of the communication module is connected with the power supply module; the feedback module comprises a reed switch, and the reed switch is connected with the main control module through a second wiring terminal. Due to the adoption of the technical scheme, the utility model discloses a production technology is simplified in the integrated design, preparation low cost to the operation is stable, adopts resistance series connection and the direct sampling mode of singlechip, improves the stability of circuit operation greatly.
Description
Technical Field
The utility model relates to a fire alarm technical field, concretely relates to door magnetic switch circuit.
Background
Along with rapid development of economy and science and technology, the density of urban personnel is continuously improved, when a fire disaster occurs, a fire source is rapidly isolated, the fire range is effectively controlled, and good conditions can be created for fighting the fire disaster and evacuating and escaping people. Therefore, fire partitions such as fire doors are widely used in fire protection design of construction works, but the fire doors cannot sufficiently perform their isolation function due to unreasonable design, improper type selection, insufficient monitoring, and the like. Therefore, the real-time monitoring and control of the working state of the fireproof door is an important measure for preventing the fire from spreading and the smoke from diffusing, and therefore, a fireproof door monitoring system is in operation. The door magnetic switch of the fireproof door in the system is internally provided with a normally open reed switch, when the permanent magnet and the reed switch are close to each other, for example, the distance between the permanent magnet and the reed switch is less than 5 mm, the door magnetic sensor is in a working waiting state, and when the permanent magnet is away from the reed switch for a certain distance, for example, the distance between the permanent magnet and the reed switch is more than 5 mm, the door magnetic sensor is in a normally open state.
The fire door in the prior art needs to be accessed into the system through an additional access module, so that the monitoring function is realized, the production process of the fire door is complex, the operation is unstable, and the overall manufacturing cost is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a door magnetic switch circuit solves above technical problem.
The utility model provides a technical problem can adopt following technical scheme to realize:
a door magnetic switch circuit comprises a main control module, a communication module, a power supply module and a feedback module, wherein the communication module is connected with the main control module, the main control module and the feedback module are connected with the power supply module and then get electricity, the feedback module is connected with the main control module and then sends a feedback signal to the main control module, wherein,
the input end of the communication module is connected with a first wiring terminal, and is connected with an external signal source through the first wiring terminal so as to obtain an external signal;
the output end of the communication module is connected with the power supply module so as to transmit the acquired external signal to the power supply module and convert the external signal into working voltage which can be used by the main control module and the feedback module;
the feedback module comprises a reed switch, and the reed switch is connected with the main control module through a second wiring terminal.
The main control module comprises a main control chip, the main control chip is a single chip microcomputer with eight 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 second pin is connected with the communication module and then acquires a switching signal generated by the communication module;
the third pin is connected with the communication module and then acquires an amplification signal generated by the communication module;
the fourth pin is grounded;
the fifth pin is connected with a first indicating unit and used for indicating the working state;
the sixth pin is connected with the feedback module to obtain a feedback signal;
the seventh pin is connected with a second indicating unit and used for indicating the working state;
the eighth pin is grounded;
in addition, a seventh capacitor is connected between the first pin and the eighth pin;
and a twenty-fifth resistor is connected between the first pin and the fourth pin.
Preferably, the fourth pin of the main control chip is grounded through an eighth capacitor.
Preferably, the first indicating unit adopts a light emitting diode with a yellow light source color.
Preferably, the second indicating unit adopts a light emitting diode with a green light source color.
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 first wiring terminal, wherein the first wiring terminal comprises a positive wiring terminal and a negative wiring terminal,
two ends of the first transient voltage suppressor are respectively connected to two binding posts of the first binding post;
the input end of the first rectifying unit is connected to the two binding posts of the first 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.
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 main control module and the feedback 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 rectified 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 emitter electrode of the fourth triode is connected with the input end of the second rectifying unit, and the collector 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 main control module and the feedback module to work.
Preferably, the first voltage regulation unit adopts a voltage regulation diode.
Preferably, the second rectifying unit adopts an HT7133-1 type voltage stabilizing chip having three pins, including a first pin grounded, a second pin as its input terminal, and a third pin as its output terminal.
The feedback module comprises the reed switch and the second wiring terminal, the second wiring terminal comprises a first wiring terminal and a second wiring terminal, two poles of the reed switch are respectively connected to the two wiring terminals of the second wiring terminal, and the first wiring terminal of the second wiring terminal is connected with the main control module and the second wiring terminal and grounded;
and the first binding post of the second binding post is also connected with the output end of the power supply module through a thirteenth resistor.
Has the advantages that: due to the adoption of the technical scheme, the utility model discloses a production technology is simplified in the integrated design, preparation low cost to the operation is stable, adopts resistance series connection and the direct sampling mode of singlechip, improves the stability of circuit operation greatly.
Drawings
Fig. 1 is a schematic diagram of a module connection according to the present invention;
fig. 2 is a schematic structural diagram of the main control module of the present invention;
fig. 3 is a schematic structural diagram of the communication module of the present invention;
fig. 4 is a schematic structural diagram of the power supply module of the present invention;
fig. 5 is a schematic structural diagram of the feedback module of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further explained with reference to the specific drawings. It is noted that the terms "first," "second," "third," "fourth," and the like (if any) in the description and in the claims of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises" or "comprising," and any variations thereof, are intended to cover non-exclusive inclusions, such that a product or apparatus that comprises a list of elements or units is not necessarily limited to those elements or units expressly listed, but may include other elements or units not expressly listed or inherent to such product or apparatus.
Referring to fig. 1, a gate magnetic switch circuit includes a main control module 100, a communication module 200, a power supply module 300 and a feedback module 400, wherein the communication module 200 is connected to the main control module 100, the main control module 100 and the feedback module 400 are connected to the power supply module 300 to obtain power, and the feedback module 400 is connected to the main control module 100 and then sends a feedback signal to the main control module 100. The input end of the communication module 200 is connected to a first connection terminal J1, and is connected to an external signal source through a first connection terminal J1, so as to obtain an external signal.
The output end of the communication module 200 is connected to the power supply module 300, so that the acquired external signal is transmitted to the power supply module 300 and then converted into an operating voltage for the main control module 100 and the feedback module 400.
The feedback module 400 includes a dry reed pipe, and the dry reed pipe is connected to the main control module through a second connection terminal.
In some embodiments, the power module 300 may output an operating voltage of + 3.3V.
In some embodiments, referring to fig. 1 and 2, the main control module 100 includes a main control chip U1, the main control chip U1 is a single chip with eight pins, and the connection structure of each pin of the main control chip U1 is as follows:
the first pin is connected with the output end of the power supply module to get power;
the second pin is connected with the communication module and then acquires a switching signal generated by the communication module, and the switching signal is defined as an ANS pin;
the third pin is connected with the communication module and then acquires an amplification signal generated by the communication module, and the amplification signal is defined as a DAT pin;
the fourth pin is grounded;
the fifth pin is connected with the first indicating unit LED 1;
the sixth pin is connected with the feedback module to obtain a feedback signal, and the feedback signal is defined as an AD0 pin;
the seventh pin is connected with a second indicating unit LED 2;
the eighth pin is grounded.
In addition, a seventh capacitor C7 is connected between the first pin and the eighth pin.
And a twenty-fifth resistor R25 is connected between the first pin and the fourth pin.
In some preferred embodiments, the fourth pin of the main control chip U1 is grounded through an eighth capacitor.
In some preferred embodiments, the first indication unit LED1 is a light emitting diode with a yellow color, and the fifth pin of the main control chip U1 is connected to the first indication unit LED1 through a fifth eleventh resistor R51.
In some preferred embodiments, the second indication unit LED2 is a light emitting diode with a green light source, and the seventh pin of the main control chip U1 is connected to the second indication unit LED2 through a fifty-th resistor R50.
In some preferred embodiments, the fourth pin of the main control chip U1 is grounded through the eighth capacitor C8.
In some preferred embodiments, the master control chip U1 is an EN8F675 type single chip.
In some embodiments, referring to fig. 1 and 3, the communication module 200 includes a first transient voltage suppressor D1, a first rectifying unit, a switching signal generating unit, an amplifying signal generating unit, and a first connection terminal J1, the first connection terminal J1 includes a positive terminal and a negative terminal, wherein,
two ends of the first transient voltage suppressor D1 are respectively connected to two binding posts of the first binding post J1;
the input end of the first rectifying unit is connected to the two binding posts of the first wiring terminal J1, 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 U1. 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 emitting 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 third pin of the main control empty chip U1, the collector electrode of the triode is also connected with the power supply module through a fifth resistor R5 to get power,
the base of the triode Q1 is further connected to the positive output terminal of the first rectifying unit, i.e. to the S + + signal output terminal, through the third resistor R3, the second resistor R2 and the first capacitor C1,
a fourteenth capacitor C14 is connected in parallel to the third resistor R3 and the fourth resistor R4;
the output end of the switching signal generating unit is connected with an ANS pin of the main control chip U1. 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 second pin of the main control chip U1 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 emitter electrode of the second triode Q3 is grounded through a sixteenth resistor R36; an emitter of the third triode Q3 is connected with the S + + signal output terminal of the first rectifying unit through an eighth resistor R8, a collector is grounded through a sixteenth resistor R36,
in addition, the base of the second transistor Q2 is also connected to ground 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 suppression diode.
In some embodiments, referring to fig. 1 and 4, the power supply module 300 includes a first voltage stabilization unit D6 and a second rectification unit U2, wherein,
the input end of the power supply module 300 is connected to the positive electrode (S + + output end) of the rectified signal output end of the first rectifying unit of the communication module 200, and the output end generates a working voltage for the main control module 100 and the feedback module 200 to work;
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 U2 and the rectified signal output terminal (S + + output terminal) of the first rectifying unit of the communication module 200 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 U2 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 200 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 end of the second rectifying unit U2 generates an operating voltage for the main control module 100 and the feedback module 200 to operate.
In some preferred embodiments, the first voltage regulation unit D6 employs a zener diode.
In some preferred embodiments, the second rectifying unit U2 is a HT7133-1 type voltage regulator chip having three pins including a first pin grounded, a second pin as its input, and a third pin as its output, a fourth capacitor C4 is connected between the first pin and the second pin, and a fifth capacitor C5 is connected between the first pin and the third pin.
In some preferred embodiments, the fourth transistor Q4 is a patch transistor of 5551 type.
In some embodiments, referring to fig. 1 and 5, the feedback module 400 includes a reed pipe KR1 and a second terminal J2, the second terminal J2 includes a first terminal and a second terminal, two poles of the reed pipe KR1 are respectively connected to two terminals of the second terminal J2, the first terminal of the second terminal J2 is connected to an AD0 pin of a main control chip U1 of the main control module 100, and the second terminal is grounded;
the first terminal of the second terminal J2 is further connected to the output terminal of the power supply module 300 through a thirteenth resistor R13 to obtain electricity, and a sixth capacitor C6 is connected between two terminals of the second terminal J2.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A gate magnetic switch circuit comprises a main control module, a communication module, a power supply module and a feedback module, wherein the communication module is connected with the main control module, the main control module and the feedback module are connected with the power supply module and then get electricity, and the feedback module is connected with the main control module and then sends a feedback signal to the main control module;
the output end of the communication module is connected with the power supply module;
the feedback module comprises a reed switch, and the reed switch is connected with the main control module through a second wiring terminal.
2. The gate magnetic switch circuit according to claim 1, wherein the main control module comprises a main control chip, the main control chip is a single chip with eight 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 second pin is connected with the communication module and then acquires a switching signal generated by the communication module;
the third pin is connected with the communication module and then acquires an amplification signal generated by the communication module;
the fourth pin is grounded;
the fifth pin is connected with a first indicating unit and used for indicating the working state;
the sixth pin is connected with the feedback module to obtain a feedback signal;
the seventh pin is connected with a second indicating unit and used for indicating the working state;
the eighth pin is grounded;
in addition, a seventh capacitor is connected between the first pin and the eighth pin;
and a twenty-fifth resistor is connected between the first pin and the fourth pin.
3. The gate magnetic switch circuit according to claim 2, wherein the fourth pin of the main control chip is grounded through an eighth capacitor.
4. The door magnetic switch circuit according to claim 2 or 3, wherein the first indicating unit adopts a light emitting diode with a yellow light source color;
the second indicating unit adopts a light emitting diode with a green light source color.
5. The gate magnetic switch circuit according to claim 2, wherein the communication module comprises a first transient voltage suppressor, a first rectifying unit, a switching signal generating unit, an amplified signal generating unit, and the first connection terminal comprising a positive terminal and a negative terminal, wherein,
two ends of the first transient voltage suppressor are respectively connected to two binding posts of the first binding post;
the input end of the first rectifying unit is connected to the two binding posts of the first 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.
6. The gate magnetic switch circuit according to claim 5, wherein the first rectifying unit is a diode rectifier bridge composed of four 1n4148 type switching diodes.
7. A gate magnetic switch circuit according to claim 5 or 6, characterized in that 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 main control module and the feedback 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 rectified 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 emitter electrode of the fourth triode is connected with the input end of the second rectifying unit, and the collector 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 main control module and the feedback module to work.
8. The gate magnetic switch circuit according to claim 7, wherein the first voltage stabilizing unit employs a voltage stabilizing diode.
9. The gate magnetic switch circuit according to claim 8, wherein the second rectifying unit is a HT7133-1 type voltage regulator chip having three pins including a first pin grounded, a second pin as its input, and a third pin as its output.
10. The door magnetic switch circuit according to claim 7, wherein the feedback module comprises the reed switch and the second connection terminal, the second connection terminal comprises a first connection terminal and a second connection terminal, two poles of the reed switch are respectively connected to two connection terminals of the second connection terminal, and the first connection terminal of the second connection terminal is connected to the main control module and the second connection terminal is grounded;
and the first binding post of the second binding post is also connected with the output end of the power supply module through a thirteenth resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922108514.XU CN210924861U (en) | 2019-11-30 | 2019-11-30 | Door magnetic switch circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922108514.XU CN210924861U (en) | 2019-11-30 | 2019-11-30 | Door magnetic switch circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210924861U true CN210924861U (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922108514.XU Active CN210924861U (en) | 2019-11-30 | 2019-11-30 | Door magnetic switch circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210924861U (en) |
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- 2019-11-30 CN CN201922108514.XU patent/CN210924861U/en active Active
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