CN211315286U - Shutdown electromagnetic valve control circuit - Google Patents
Shutdown electromagnetic valve control circuit Download PDFInfo
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- CN211315286U CN211315286U CN201922251459.XU CN201922251459U CN211315286U CN 211315286 U CN211315286 U CN 211315286U CN 201922251459 U CN201922251459 U CN 201922251459U CN 211315286 U CN211315286 U CN 211315286U
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Abstract
The utility model relates to the technical field of electromagnetic valve control, in particular to a shutdown electromagnetic valve control circuit, which comprises an anti-reverse module, a control module and a control module, wherein the anti-reverse module is used for controlling the input power supply to be switched on when in forward connection and to be switched off when in reverse connection; the load control module is used for controlling inductive and non-inductive loads; the output control module is used for controlling output time; the input end of the reverse connection prevention module is connected with the input power supply, the output end of the reverse connection prevention module is connected with the input end of the load control module, the output end of the load control module is connected with the input end of the output control module, and the output end of the output control module is connected with the output power supply. The utility model provides a pair of shut down solenoid valve control circuit, simple structure, design benefit has solved the uncontrollable problem of present general shut down solenoid valve control circuit's output time, has improved work efficiency.
Description
Technical Field
The utility model relates to a solenoid valve control technical field specifically is a shut down solenoid valve control circuit.
Background
The electromagnetic valve is internally provided with a closed cavity, through holes are formed in different positions, each hole is connected with different oil pipes, a piston is arranged in the middle of the cavity, two electromagnets are arranged on two sides of the cavity, a magnet coil on one side is electrified to be attracted to the side, different oil discharge holes are opened or closed by controlling the movement of the valve body, an oil inlet hole is normally opened, hydraulic oil enters different oil discharge pipes, then the piston of the oil cylinder is pushed by the pressure of the oil, the piston drives a piston rod, and the piston rod drives a mechanical device; thus, the mechanical movement is controlled by controlling the current on-off of the electromagnet.
However, the output time of the current general shutdown electromagnetic valve control circuit cannot be controlled, and the working efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the problem that the output time of an existing general shutdown solenoid valve control circuit is uncontrollable is solved.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pair of shut down solenoid valve control circuit, include
The reverse connection prevention module is used for controlling the input power supply to be conducted when in forward connection and to be closed when in reverse connection;
the load control module is used for controlling inductive and non-inductive loads;
the output control module is used for controlling output time;
the input end of the reverse connection prevention module is connected with the input power supply, the output end of the reverse connection prevention module is connected with the input end of the load control module, the output end of the load control module is connected with the input end of the output control module, and the output end of the output control module is connected with the output power supply.
Further, the reverse connection prevention module comprises an N-channel field effect transistor Q1 and resistors R1 and R2, the drain electrode of the N-channel field effect transistor Q1 is connected with the negative electrode of the input power supply, the grid electrode of the N-channel field effect transistor Q1 is connected with the positive electrode of the input power supply after being connected with the resistor R1, and the resistor R2 is connected between the source electrode and the grid electrode of the N-channel field effect transistor Q1;
when the input power supply is positively connected, the N-channel field effect transistor Q1 is conducted, and the input current can pass through the N-channel field effect transistor Q1; when the input power supply is reversely connected, the N-channel field effect transistor Q1 is closed, and the input current cannot pass through the N-channel field effect transistor Q1, so that the reverse connection prevention effect is achieved, and a subsequent circuit is protected from being damaged.
The load control module comprises a capacitor C, a diode b1, resistors R3 and R4, the resistor R3 and the resistor R4 are connected in series and then connected in parallel with the diode b1, and then connected in series with the capacitor C, the cathode of the diode b1 is connected with one end of the capacitor C, the anode of the diode b1 is connected with one end of the resistor R4, the common end of the resistor R4 and the diode b1 is connected with the source of the N-channel field effect transistor Q1, and the anode of the input power supply is connected with the other end of the capacitor C;
when the source of the N-channel fet Q1 is at a high potential, the diode b1 is turned on, that is, the resistor R3 and the resistor R4 are shorted, and then a non-inductive load is output; on the contrary, when the source of the N-channel fet Q1 is at a low potential, an inductive load is output.
The output control module comprises an N-channel field effect transistor Q2 and a diode b2, wherein the drain electrode of the N-channel field effect transistor Q2 is connected with the anode of the diode b2, the grid electrode of the N-channel field effect transistor Q2 is connected with the common end of the resistor R3 and the resistor R4, the source electrode of the N-channel field effect transistor Q2 is connected with the source electrode of the N-channel field effect transistor Q1, the anode of the diode b2 is connected with the cathode of the output power supply, and the cathode of the diode b2 is connected with the anode of the output power supply;
when the drain of the N-channel fet Q2 is at a high level, the diode b2 is turned on, and outputs no signal, and when the drain of the N-channel fet Q2 is at a low level, the diode b2 is turned off, and outputs a signal, and at this time, the output time of the output signal can be controlled by adjusting the cycle time of the high-low level of the drain of the N-channel fet Q2.
The utility model has the advantages that: the utility model provides a pair of shut down solenoid valve control circuit, simple structure, design benefit switches on and closes when control input power source backward connects when preventing reverse-connection module to control input power source forward through the interpolation, controls perception and non-perception load through adding load control module, controls output time through adding output control module, has solved the uncontrollable problem of present general shut down solenoid valve control circuit's output time, has improved work efficiency.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a circuit diagram of the present invention;
in the figure: the system comprises a 1-reverse connection prevention module, a 2-load control module and a 3-output control module.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in FIG. 1, the utility model provides a shut down solenoid valve control circuit, include
The reverse connection prevention module is used for controlling the input power supply to be conducted when in forward connection and to be closed when in reverse connection;
the load control module is used for controlling inductive and non-inductive loads;
the output control module is used for controlling output time;
the input end of the reverse connection prevention module is connected with the input power supply, the output end of the reverse connection prevention module is connected with the input end of the load control module, the output end of the load control module is connected with the input end of the output control module, and the output end of the output control module is connected with the output power supply.
Further, the reverse connection prevention module comprises an N-channel field effect transistor Q1 and resistors R1 and R2, the drain electrode of the N-channel field effect transistor Q1 is connected with the negative electrode of the input power supply, the grid electrode of the N-channel field effect transistor Q1 is connected with the positive electrode of the input power supply after being connected with the resistor R1, and the resistor R2 is connected between the source electrode and the grid electrode of the N-channel field effect transistor Q1;
when the input power supply is positively connected, the N-channel field effect transistor Q1 is conducted, and the input current can pass through the N-channel field effect transistor Q1; when the input power supply is reversely connected, the N-channel field effect transistor Q1 is closed, and the input current cannot pass through the N-channel field effect transistor Q1, so that the reverse connection prevention effect is achieved, and a subsequent circuit is protected from being damaged.
The load control module comprises a capacitor C, a diode b1, resistors R3 and R4, the resistor R3 and the resistor R4 are connected in series and then connected in parallel with the diode b1, and then connected in series with the capacitor C, the cathode of the diode b1 is connected with one end of the capacitor C, the anode of the diode b1 is connected with one end of the resistor R4, the common end of the resistor R4 and the diode b1 is connected with the source of the N-channel field effect transistor Q1, and the anode of the input power supply is connected with the other end of the capacitor C;
when the source of the N-channel fet Q1 is at a high potential, the diode b1 is turned on, that is, the resistor R3 and the resistor R4 are shorted, and then a non-inductive load is output; on the contrary, when the source of the N-channel fet Q1 is at a low potential, an inductive load is output.
The output control module comprises an N-channel field effect transistor Q2 and a diode b2, wherein the drain electrode of the N-channel field effect transistor Q2 is connected with the anode of the diode b2, the grid electrode of the N-channel field effect transistor Q2 is connected with the common end of the resistor R3 and the resistor R4, the source electrode of the N-channel field effect transistor Q2 is connected with the source electrode of the N-channel field effect transistor Q1, the anode of the diode b2 is connected with the cathode of the output power supply, and the cathode of the diode b2 is connected with the anode of the output power supply;
when the drain of the N-channel fet Q2 is at a high level, the diode b2 is turned on, and outputs no signal, and when the drain of the N-channel fet Q2 is at a low level, the diode b2 is turned off, and outputs a signal, and at this time, the output time of the output signal can be controlled by adjusting the cycle time of the high-low level of the drain of the N-channel fet Q2.
The utility model provides a pair of shut down solenoid valve control circuit, simple structure, design benefit switches on and closes when control input power source backward connects when preventing reverse-connection module to control input power source forward through the interpolation, controls perception and non-perception load through adding load control module, controls output time through adding output control module, has solved the uncontrollable problem of present general shut down solenoid valve control circuit's output time, has improved work efficiency.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (2)
1. A shutdown solenoid valve control circuit is characterized in that: comprises that
The reverse connection prevention module (1) is used for controlling the input power supply to be conducted when in forward connection and to be closed when in reverse connection;
the load control module (2) is used for controlling inductive and non-inductive loads;
the output control module (3) is used for controlling the output time;
the input end of the reverse connection prevention module (1) is connected with the input power supply, the output end of the reverse connection prevention module (1) is connected with the input end of the load control module (2), the output end of the load control module (2) is connected with the input end of the output control module (3), and the output end of the output control module (3) is connected with the output power supply.
2. The shutdown solenoid valve control circuit of claim 1, wherein: the reverse connection prevention module comprises an N-channel field effect transistor Q1 and resistors R1 and R2, the drain electrode of the N-channel field effect transistor Q1 is connected with the negative electrode of the input power supply, the grid electrode of the N-channel field effect transistor Q1 is connected with the resistor R1 and then is connected with the positive electrode of the input power supply, and the resistor R2 is connected between the source electrode and the grid electrode of the N-channel field effect transistor Q1;
the load control module comprises a capacitor C, a diode b1, resistors R3 and R4, the resistor R3 and the resistor R4 are connected in series and then connected in parallel with the diode b1, and then connected in series with the capacitor C, the cathode of the diode b1 is connected with one end of the capacitor C, the anode of the diode b1 is connected with one end of the resistor R4, the common end of the resistor R4 and the diode b1 is connected with the source of the N-channel field effect transistor Q1, and the anode of the input power supply is connected with the other end of the capacitor C;
the output control module comprises an N-channel field effect transistor Q2 and a diode b2, the drain electrode of the N-channel field effect transistor Q2 is connected with the positive electrode of the diode b2, the grid electrode of the N-channel field effect transistor Q2 is connected with the common end of the resistor R3 and the resistor R4, the source electrode of the N-channel field effect transistor Q2 is connected with the source electrode of the N-channel field effect transistor Q1, the positive electrode of the diode b2 is connected with the negative electrode of the output power supply, and the negative electrode of the diode b2 is connected with the positive electrode of the output power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922251459.XU CN211315286U (en) | 2019-12-16 | 2019-12-16 | Shutdown electromagnetic valve control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922251459.XU CN211315286U (en) | 2019-12-16 | 2019-12-16 | Shutdown electromagnetic valve control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211315286U true CN211315286U (en) | 2020-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922251459.XU Active CN211315286U (en) | 2019-12-16 | 2019-12-16 | Shutdown electromagnetic valve control circuit |
Country Status (1)
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|---|---|
| CN (1) | CN211315286U (en) |
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2019
- 2019-12-16 CN CN201922251459.XU patent/CN211315286U/en active Active
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