CN213987238U - Control circuit based on pneumatic switch - Google Patents
Control circuit based on pneumatic switch Download PDFInfo
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- CN213987238U CN213987238U CN202120236248.3U CN202120236248U CN213987238U CN 213987238 U CN213987238 U CN 213987238U CN 202120236248 U CN202120236248 U CN 202120236248U CN 213987238 U CN213987238 U CN 213987238U
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Abstract
The utility model discloses a control circuit based on pnematic switch, include: the device comprises an input module, a control output module and an external device; the input module is electrically connected with the control output module, and the control output module is electrically connected with the external equipment; the input module is used for sending a voltage signal and a reference voltage signal to the control output module, and the control output module is used for controlling the starting and stopping of the external equipment according to the received voltage signal and the received reference voltage signal. Therefore, the utility model discloses a control circuit can automatic control external equipment open and stop, need not artifical the participation, has realized intelligent control.
Description
Technical Field
The utility model belongs to the technical field of pneumatic switch technique and specifically relates to a control circuit based on pneumatic switch.
Background
Public places such as hospitals, office buildings, markets and the like have more pedestrian volume, the disinfection and protection work is not neglected, and the propagation of diseases caused by bacterial breeding is avoided.
In the prior art, bacteria are eliminated mostly through an ultraviolet lamp. In particular, ultraviolet light is emitted by the ultraviolet lamp, thereby achieving a sterilization effect. However, the ultraviolet lamp is turned on or off by manual operation, so that the use is inconvenient and the intelligence degree is low.
Therefore, how to design a control circuit based on a pneumatic switch to enable the control circuit to automatically control the starting and stopping of external equipment is a problem to be solved urgently by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model provides a control circuit based on pnematic switch through control circuit, can automatic control external equipment open and stop.
The utility model provides a its technical problem take following technical scheme to realize:
the embodiment of the utility model provides a control circuit based on pnematic switch, include: the device comprises an input module, a control output module and an external device;
the input module is electrically connected with the control output module, and the control output module is electrically connected with the external equipment;
the input module is used for sending a voltage signal and a reference voltage signal to the control output module, and the control output module is used for controlling the starting and stopping of the external equipment according to the received voltage signal and the received reference voltage signal.
Optionally, in an embodiment of the present invention, the input module includes an interface JP3, a resistor R7, and a resistor R8;
the 1 pin of the interface JP3 is connected to one end of the resistor R7 and one end of the resistor R8, respectively, the other end of the resistor R8 is grounded, and the other end of the resistor R7 and the 4 pins of the interface JP3 are connected to the control output module.
Optionally, in the embodiment of the present invention, the control output module includes a transistor Q2, a MOS transistor Q1, a resistor R1, a resistor R3, a resistor R5, and a relay K1;
the base of the triode Q2 is connected with the other end of the resistor R7 in the input module, the emitter of the triode Q2 is connected with the 4 pin of the interface JP3 in the input module, the collector of the triode Q2 is connected with one end of the resistor R3, the other end of the resistor R3 is connected with one end of the resistor R1 and the gate of the MOS transistor Q1 respectively, the source of the MOS transistor Q1 is connected with the other end of the resistor R1, and the drain of the MOS transistor Q1 is connected with the relay K1.
Optionally, in an embodiment of the present invention, the control output module further includes an interface JP 2;
the 1 pin and the 2 pin of the interface JP2 are respectively connected with two contacts of the relay K1.
Optionally, in an embodiment of the present invention, the power supply device further includes a power supply module;
the power supply module is electrically connected with the input module and the control output module respectively through a voltage drop module;
the power supply module is used for providing a working power supply for the input module and the control output module.
Optionally, in an embodiment of the present invention, the power supply module provides a 24V power voltage.
Optionally, in an embodiment of the present invention, the voltage drop module is configured to convert a 24V power voltage provided by the power supply module into a 12V voltage;
the voltage drop module comprises a chip U1, a diode D1, a capacitor C1, a capacitor C2, a resistor R2 and an LED1 lamp;
a VIN pin of the chip U1 is connected to a cathode of the diode D1 and one end of the capacitor C1, an anode of the diode D1 is connected to the power supply unit, a VOUT pin of the chip U1 is connected to one end of the capacitor C2 and one end of the resistor R2, the other end of the capacitor C1 and the other end of the capacitor C2 are grounded, the other end of the resistor R2 is connected to one end of the LED1, and the other end of the LED1 is grounded.
The utility model has the advantages that:
the utility model discloses in, send voltage signal FB to triode Q2's in the control output module base through input module, input module has also provided reference voltage VREF, wherein, reference voltage VREF is confirmed according to voltage signal, send reference voltage VREF to the projecting pole of control output module, control output module amplifies voltage FB and reference voltage VREF, the pressure drop that produces through resistance R1 and resistance R3, and reach MOS pipe Q1's the condition that switches on, voltage signal FB and reference voltage signal VREF's difference is less than 0.3 promptly, control output module control relay K1 is closed, thereby control external equipment starts. Therefore, the utility model discloses can automatic control external equipment open and stop, realize intelligent control.
Drawings
Fig. 1 is a block diagram illustrating the structure of a power supply module, a voltage drop module, an input module, a control output module, and an external device according to the present invention;
fig. 2 is a schematic structural diagram of an input module provided in the present invention;
fig. 3 is a schematic structural diagram of a control output module provided by the present invention;
fig. 4 is a schematic structural diagram of a pressure drop module according to the present invention.
Detailed Description
In the present invention, the description referring to "first", "second", etc. is only for descriptive purposes, not particularly referring to the order or sequential meanings, and not for limiting the present invention, but it is only for distinguishing the components or operations described in the same technical terms, and it is not understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", etc. may explicitly or implicitly include at least one of the features.
The embodiments of the present invention will be described in detail with reference to the accompanying drawings:
the utility model provides a control circuit based on pneumatic switch, as shown in figure 1, include: the device comprises an input module, a control output module and an external device;
the input module is electrically connected with the control output module, and the control output module is electrically connected with the external equipment;
the input module is used for sending a voltage signal and a reference voltage signal to the control output module, and the control output module is used for controlling the starting and stopping of the external equipment according to the received voltage signal and the received reference voltage signal.
Wherein, external equipment not only can set up to the ultraviolet lamp, of course, can also be other equipment, can set up according to actual conditions, does not do the restriction here, improves the flexibility of design.
Therefore, the utility model discloses in, realized that automatic control is external opens and stops, need not user manual operation.
Optionally, in the embodiment of the present invention, as shown in fig. 2, the input module includes an interface JP3, a resistor R7, and a resistor R8;
the 1 pin of the interface JP3 is connected to one end of the resistor R7 and one end of the resistor R8, respectively, the other end of the resistor R8 is grounded, and the other end of the resistor R7 and the 4 pins of the interface JP3 are connected to the control output module.
Wherein, the input module sends voltage signal and reference voltage signal to the control output module, can understand as: interface JP3 external temperature sensor through temperature sensor, detects the temperature signal of current environment, and temperature sensor converts temperature signal into voltage signal FB to confirm reference voltage signal VREF according to voltage signal, transmit voltage signal FB and reference voltage signal VREF to control output module in for follow-up system output module control external device stop.
Of course, in the utility model discloses in, what be connected with interface JP3 can also be wind speed sensor, does not limit here to satisfy the demand of different scenes, improve the flexibility of design.
Optionally, in the embodiment of the present invention, as shown in fig. 3, the control output module includes a transistor Q2, a MOS transistor Q1, a resistor R1, a resistor R3, a resistor R5, and a relay K1;
the base of the triode Q2 is connected with the other end of the resistor R7 in the input module, the emitter of the triode Q2 is connected with the 4 pin of the interface JP3 in the input module, the collector of the triode Q2 is connected with one end of the resistor R3, the other end of the resistor R3 is connected with one end of the resistor R1 and the gate of the MOS transistor Q1 respectively, the source of the MOS transistor Q1 is connected with the other end of the resistor R1, and the drain of the MOS transistor Q1 is connected with the relay K1.
Because the voltage signal FB and the reference voltage signal VREF are weak signals, signals can be amplified through the triode Q2, the voltage drop generated by the resistor R1 and the resistor R3 reaches the conduction condition of the MOS transistor Q1, and the control output module controls the relay K1 to be closed, so that the external equipment is controlled to be started or stopped.
To illustrate, when the difference between the voltage signal FB and the reference voltage signal VREF is less than 0.3V, the on condition of the MOS transistor Q1 is reached, and the relay K1 is closed, thereby controlling the external device to start or stop.
In addition, because control output module comprises triode Q2, MOS pipe Q1, so, increased the utility model discloses an interference killing feature provides the sound guarantee for service environment's stability.
Optionally, in an embodiment of the present invention, the control output module further includes an interface JP 2;
the 1 pin and the 2 pin of the interface JP2 are respectively connected with two contacts of the relay K1.
Thus, by setting the interface JP2, the control output module is connected with the external device, so that the external device can be controlled in the following.
Optionally, in an embodiment of the present invention, the power supply device further includes a power supply module;
the power supply module is electrically connected with the input module and the control output module respectively through a voltage drop module;
the power supply module is used for providing a working power supply for the input module and the control output module.
Optionally, in an embodiment of the present invention, the power supply module provides a 24V power voltage.
Optionally, in an embodiment of the present invention, as shown in fig. 4, the voltage drop module is configured to convert the 24V power voltage provided by the power supply module into 12V voltage;
the voltage drop module comprises a chip U1, a diode D1, a capacitor C1, a capacitor C2, a resistor R2 and an LED1 lamp;
a VIN pin of the chip U1 is connected to a cathode of the diode D1 and one end of the capacitor C1, an anode of the diode D1 is connected to the power supply unit, a VOUT pin of the chip U1 is connected to one end of the capacitor C2 and one end of the resistor R2, the other end of the capacitor C1 and the other end of the capacitor C2 are grounded, the other end of the resistor R2 is connected to one end of the LED1, and the other end of the LED1 is grounded.
So, through setting up the voltage drop module, the 24V mains voltage who provides power module converts 12V voltage into, provides 12V voltage for input module and control output module, is favorable to making whole circuit steady operation.
The utility model discloses a theory of operation and working process as follows: the power supply module is the voltage drop module, the input module, control output module, external device supplies power, the 24V voltage drop that the voltage drop module provided the power supply module is to 12V, thereby supply power for input module and control output module, input module sends voltage FB to control output module's base, send reference voltage VREF to control output module's emitter, control output module amplifies voltage FB and reference voltage VREF, the voltage drop that produces through resistance R1 and resistance R3, and reach MOS pipe Q1's the condition of switching on, namely, the difference of voltage signal FB and reference voltage signal VREF is less than 0.3, control output module control relay K1 is closed, thereby control external device starts.
Therefore, the utility model discloses a according to the temperature or the wind degree of current environment, through control output module, can automatic external device open stop, this process need not user manual operation, has realized intelligent control, provides convenience for the user.
It should be emphasized that the embodiments described herein are illustrative and not restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but also falls within the scope of the present invention, in any other embodiments derived by those skilled in the art according to the technical solutions of the present invention.
Claims (7)
1. A control circuit based on a pneumatic switch, comprising: the device comprises an input module, a control output module and an external device;
the input module is electrically connected with the control output module, and the control output module is electrically connected with the external equipment;
the input module is used for sending a voltage signal and a reference voltage signal to the control output module, and the control output module is used for controlling the starting and stopping of the external equipment according to the received voltage signal and the received reference voltage signal.
2. The pneumatic switch-based control circuit of claim 1, wherein the input module comprises an interface JP3, a resistor R7, and a resistor R8;
the 1 pin of the interface JP3 is connected to one end of the resistor R7 and one end of the resistor R8, respectively, the other end of the resistor R8 is grounded, and the other end of the resistor R7 and the 4 pins of the interface JP3 are connected to the control output module.
3. The control circuit based on the pneumatic switch is characterized in that the control output module comprises a triode Q2, a MOS tube Q1, a resistor R1, a resistor R3, a resistor R5 and a relay K1;
the base of the triode Q2 is connected with the other end of the resistor R7 in the input module, the emitter of the triode Q2 is connected with the 4 pin of the interface JP3 in the input module, the collector of the triode Q2 is connected with one end of the resistor R3, the other end of the resistor R3 is connected with one end of the resistor R1 and the gate of the MOS transistor Q1 respectively, the source of the MOS transistor Q1 is connected with the other end of the resistor R1, and the drain of the MOS transistor Q1 is connected with the relay K1.
4. The pneumatic switch-based control circuit of claim 3, wherein the control output module further comprises an interface JP 2;
the 1 pin and the 2 pin of the interface JP2 are respectively connected with two contacts of the relay K1.
5. The control circuit based on the pneumatic switch as claimed in claim 1, further comprising a power supply module;
the power supply module is electrically connected with the input module and the control output module respectively through a voltage drop module;
the power supply module is used for providing a working power supply for the input module and the control output module.
6. The pneumatic switch-based control circuit of claim 5, wherein the power module provides a 24V power supply voltage.
7. The control circuit based on the pneumatic switch as claimed in claim 6, wherein the voltage drop module is configured to convert the 24V power voltage provided by the power supply module into 12V voltage;
the voltage drop module comprises a chip U1, a diode D1, a capacitor C1, a capacitor C2, a resistor R2 and an LED1 lamp;
a VIN pin of the chip U1 is connected to a cathode of the diode D1 and one end of the capacitor C1, an anode of the diode D1 is connected to the power supply module, a VOUT pin of the chip U1 is connected to one end of the capacitor C2 and one end of the resistor R2, the other end of the capacitor C1 and the other end of the capacitor C2 are grounded, the other end of the resistor R2 is connected to one end of the LED1, and the other end of the LED1 is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120236248.3U CN213987238U (en) | 2021-01-27 | 2021-01-27 | Control circuit based on pneumatic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120236248.3U CN213987238U (en) | 2021-01-27 | 2021-01-27 | Control circuit based on pneumatic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213987238U true CN213987238U (en) | 2021-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120236248.3U Active CN213987238U (en) | 2021-01-27 | 2021-01-27 | Control circuit based on pneumatic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213987238U (en) |
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2021
- 2021-01-27 CN CN202120236248.3U patent/CN213987238U/en active Active
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