阅读说明：本技术 一种定时切断供电电源的断路器 (Circuit breaker for cutting off power supply at regular time ) 是由 王先鹏 于 2019-12-11 设计创作，主要内容包括：本发明公开了一种定时切断供电电源的断路器,本发明的稳压电路的DC12V直流电源的正极为振荡电路、分频电路、单稳态电路和开关电路提供工作电源Vcc；稳压电路的DC12V直流电源的负极与振荡电路、分频电路、单稳态电路和开关电路的接地端GND连接；振荡电路输出端Uzo依次经分频电路和单稳态电路与开关电路的栅极G连接；开关电路的源极S与稳压电路DC12V电源+极输出连接,开关电路的漏极D与工业控制设备的电源输入一端连接；工业控制设备的电源输入另一端与接地端GND连接。本发明可按预先设定的时间间隔内,将控制系统电源切断的设备,并再重新上电,大大降低了因控制器逻辑错误或程序BUG导致的停产或待机的现象发生。(The invention discloses a circuit breaker for cutting off a power supply at regular time.A positive pole of a DC12V direct-current power supply of a voltage stabilizing circuit of the invention provides a working power supply Vcc for an oscillating circuit, a frequency dividing circuit, a monostable circuit and a switch circuit; the negative pole of the DC12V DC power supply of the voltage stabilizing circuit is connected with the grounding ends GND of the oscillating circuit, the frequency dividing circuit, the monostable circuit and the switch circuit; the output end Uzo of the oscillating circuit is connected with the grid G of the switch circuit through the frequency dividing circuit and the monostable circuit in sequence; the source S of the switch circuit is connected with the power supply + electrode output of the voltage stabilizing circuit DC12V, and the drain D of the switch circuit is connected with one end of the power supply input end of the industrial control equipment; the other end of the power supply input of the industrial control equipment is connected with a ground end GND. The invention can control the equipment of system power supply cut-off in the preset time interval and then power on again, thereby greatly reducing the occurrence of production stop or standby phenomenon caused by logic error of the controller or program BUG.)

1. The utility model provides a circuit breaker of timing cutting power supply, includes voltage stabilizing circuit, its characterized in that: the positive pole of the DC12V DC power supply of the voltage stabilizing circuit provides a working power supply Vcc for the oscillating circuit, the frequency dividing circuit, the monostable circuit and the switch circuit; the negative pole of the DC12V DC power supply of the voltage stabilizing circuit is connected with the grounding ends GND of the oscillating circuit, the frequency dividing circuit, the monostable circuit and the switch circuit; the output end Uzo of the oscillating circuit is connected with the grid G of the switch circuit through the frequency dividing circuit and the monostable circuit in sequence; the source S of the switch circuit is connected with the power supply + electrode output of the voltage stabilizing circuit DC12V, and the drain D of the switch circuit is connected with one end of the power supply input end of the industrial control equipment; the other end of the power supply input of the industrial control equipment is connected with a ground end GND.

2. A circuit breaker for timing cutting off a power supply according to claim 1, wherein: the oscillation circuit comprises a 555 chip; the 1 st pin of the 555 chip is connected with a ground end GND, the 2 nd pin and the 6 th pin of the 555 chip are connected in parallel and then connected with the ground end GND through a capacitor C2, and the 2 nd pin of the 555 chip is connected with the 7 th pin through a resistor R2; a 7 th pin of the 555 chip is connected with an 8 th pin and a 4 th pin of the 555 chip in parallel through a resistor R1 and then is connected with a working power supply Vcc; the 5 th pin of the 555 chip is connected with a ground end GND through a capacitor C3; and the 3 rd pin of the 555 chip is connected with the output end Uzo of the oscillating circuit and the input end Ufi of the frequency dividing circuit.

3. A circuit breaker for timing cutting off a power supply according to claim 1, wherein: the frequency dividing circuit comprises a 4060 counting chip; the 11 th pin of the 4060 counting chip is an input end Ufi of the frequency dividing circuit, the 8 th pin and the 12 th pin of the 4060 counting chip are connected in parallel and then connected with a ground end GND, and the 16 th pin of the 4060 counting chip is connected with a working power supply Vcc; the 1 st, 2 nd and 3 rd pins of the 4060 counting chip are respectively connected with the output end Ufo of the frequency division circuit through selection switches K1, K2 and K3; the divider circuit output Ufo is connected to the monostable input Udi.

4. A circuit breaker for timing cutting off a power supply according to claim 1, wherein: the monostable circuit comprises a 555 chip; the 1 st pin of the 555 chip is connected with a ground terminal GND, the 2 nd pin of the 555 chip is a monostable circuit input terminal Udi, the 6 th pin and the 7 th pin of the 555 chip are connected in parallel and then are connected with the ground terminal GND through a capacitor C4, and the 7 th pin of the 555 chip is connected with the 8 th pin and the 4 th pin of the 555 chip in parallel and then is connected with a working power supply Vcc through a resistor R3; a diode D1 and a resistor R4 are connected in parallel between the working power supply Vcc and the monostable circuit input end Udi; the anode of the diode D1 is connected with the monostable circuit input end Udi, and the cathode of the diode D1 is connected with the working power supply Vcc; the 5 th pin of the 555 chip is connected with a ground end GND through a capacitor C5; the 3 rd pin of the 555 chip is a monostable circuit output end Udo; the monostable circuit output Udo is connected to the gate G of the switching circuit.

5. A circuit breaker for timing cutting off a power supply according to claim 1, wherein: the switching circuit comprises an MOS tube; the source S of the MOS tube is connected with the power supply + electrode output of the voltage stabilizing circuit DC12V, and the drain D of the MOS tube is connected with one power supply input end of the industrial control equipment; the drain D is connected with a ground end GND through a resistor R5; the gate G is connected with a ground end GND through a resistor R4; and the grid G of the MOS tube is connected with the output end Udo of the monostable circuit.

6. A circuit breaker for timing cutting off a power supply according to claim 1, wherein: and a filter capacitor C1 is connected in parallel between the working power supply Vcc and the ground end GND of the oscillating circuit, the frequency dividing circuit and the monostable circuit.

7. A circuit breaker for timing cutting off a power supply according to claim 1, wherein: and a coupling capacitor C6 is arranged between the output end Ufo of the frequency dividing circuit and the input end Udi of the monostable circuit.

8. A circuit breaker for timing cutting off a power supply according to claim 3, wherein: the selection switch K1 is used for selecting 6 hours; k2 for 12 hour time selection; k3 was selected for a 24 hour period.

Technical Field

The invention relates to a circuit breaker for cutting off a power supply at regular time, and belongs to the technical field of industrial control.

Background

The equipment used in the industrial control field has high reliability requirements, particularly for the controller, if a control logic error or a program BUG and the like of the controller occur, the control abnormity or the operation stop phenomenon can occur, and therefore production is influenced. The existing circuit breaker for cutting off the power supply at regular time is not capable of meeting the use requirement because the control circuit structure is complex and some unexpected logic errors are easy to generate.

Disclosure of Invention

The invention aims to provide a circuit breaker for cutting off a power supply at fixed time, which can control equipment for cutting off a system power supply within a preset time interval and then electrify the equipment again, so that the equipment runs in an initial mode, the phenomenon of production halt or standby caused by logic errors of a controller or a program BUG is greatly reduced, and the defects of the prior art are overcome.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention relates to a circuit breaker for cutting off a power supply at fixed time, which comprises a voltage stabilizing circuit, wherein the anode of a DC12V direct-current power supply of the voltage stabilizing circuit provides a working power supply Vcc for an oscillating circuit, a frequency dividing circuit, a monostable circuit and a switch circuit; the negative pole of the DC12V DC power supply of the voltage stabilizing circuit is connected with the grounding ends GND of the oscillating circuit, the frequency dividing circuit, the monostable circuit and the switch circuit; the output end Uzo of the oscillating circuit is connected with the grid G of the switch circuit through the frequency dividing circuit and the monostable circuit in sequence; the source S of the switch circuit is connected with the power supply + electrode output of the voltage stabilizing circuit DC12V, and the drain D of the switch circuit is connected with one end of the power supply input end of the industrial control equipment; the other end of the power supply input of the industrial control equipment is connected with a ground end GND.

In the circuit breaker for cutting off the power supply at regular time, the oscillating circuit comprises a 555 chip; the 1 st pin of the 555 chip is connected with a ground end GND, the 2 nd pin and the 6 th pin of the 555 chip are connected in parallel and then connected with the ground end GND through a capacitor C2, and the 2 nd pin of the 555 chip is connected with the 7 th pin through a resistor R2; a 7 th pin of the 555 chip is connected with an 8 th pin and a 4 th pin of the 555 chip in parallel through a resistor R1 and then is connected with a working power supply Vcc; the 5 th pin of the 555 chip is connected with a ground end GND through a capacitor C3; and the 3 rd pin of the 555 chip is connected with the output end Uzo of the oscillating circuit and the input end Ufi of the frequency dividing circuit.

In the circuit breaker for cutting off the power supply at regular time, the frequency dividing circuit comprises a 4060 counting chip; the 11 th pin of the 4060 counting chip is an input end Ufi of the frequency dividing circuit, the 8 th pin and the 12 th pin of the 4060 counting chip are connected in parallel and then connected with a ground end GND, and the 16 th pin of the 4060 counting chip is connected with a working power supply Vcc; the 1 st, 2 nd and 3 rd pins of the 4060 counting chip are respectively connected with the output end Ufo of the frequency division circuit through selection switches K1, K2 and K3; the divider circuit output Ufo is connected to the monostable input Udi.

In the circuit breaker for cutting off the power supply at regular time, the monostable circuit comprises a 555 chip; the 1 st pin of the 555 chip is connected with a ground terminal GND, the 2 nd pin of the 555 chip is a monostable circuit input terminal Udi, the 6 th pin and the 7 th pin of the 555 chip are connected in parallel and then are connected with the ground terminal GND through a capacitor C4, and the 7 th pin of the 555 chip is connected with the 8 th pin and the 4 th pin of the 555 chip in parallel and then is connected with a working power supply Vcc through a resistor R3; a diode D1 and a resistor R4 are connected in parallel between the working power supply Vcc and the monostable circuit input end Udi; the anode of the diode D1 is connected with the monostable circuit input end Udi, and the cathode of the diode D1 is connected with the working power supply Vcc; the 5 th pin of the 555 chip is connected with a ground end GND through a capacitor C5; the 3 rd pin of the 555 chip is a monostable circuit output end Udo; the monostable circuit output Udo is connected to the gate G of the switching circuit.

In the circuit breaker for cutting off the power supply at regular time, the switch circuit comprises an MOS tube; the source S of the MOS tube is connected with the power output of the voltage stabilizing circuit DC12V, and the drain D of the MOS tube is connected with one end of the power input of the industrial control equipment; the drain D is connected with a ground end GND through a resistor R5; the gate G is connected with a ground end GND through a resistor R4; and the grid G of the MOS tube is connected with the output end Udo of the monostable circuit.

In the circuit breaker for cutting off the power supply at regular time, the filter capacitor C1 is connected in parallel between the operating power supply Vcc of the oscillation circuit, the frequency dividing circuit and the monostable circuit and the ground terminal GND.

In the circuit breaker for cutting off the power supply at regular time, a coupling capacitor C6 is provided between the output end Ufo of the frequency dividing circuit and the input end Udi of the monostable circuit.

In the breaker for cutting off the power supply at regular time, the selection switch K1 is selected for 6 hours; k2 for 12 hour time selection; k3 was selected for a 24 hour period.

Compared with the prior art, the invention can control the equipment with the system power supply cut-off within the preset time interval, so as to electrify again and enable the equipment to operate in the initial mode, thereby greatly reducing the occurrence of production halt or standby caused by logic errors of a controller or BUG (program BUG); in addition, the invention also has the advantages of simple circuit structure and good working stability.

Drawings

Fig. 1 is a schematic diagram of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

The circuit breaker for cutting off the power supply at fixed time of the invention, as shown in figure 1, comprises a voltage stabilizing circuit, wherein the positive pole of a DC12V direct current power supply of the voltage stabilizing circuit provides a working power supply Vcc for an oscillating circuit, a frequency dividing circuit, a monostable circuit and a switch circuit; the negative pole of the DC12V DC power supply of the voltage stabilizing circuit is connected with the grounding ends GND of the oscillating circuit, the frequency dividing circuit, the monostable circuit and the switch circuit; the output end Uzo of the oscillating circuit is connected with the grid G of the switch circuit through the frequency dividing circuit and the monostable circuit in sequence; the source S of the switch circuit is connected with the power supply + electrode output of the voltage stabilizing circuit DC12V, and the drain D of the switch circuit is connected with one end of the power supply input end of the industrial control equipment; the other end of the power supply input of the industrial control equipment is connected with a ground end GND.

The oscillating circuit comprises a 555 chip; the 1 st pin of the 555 chip is connected with a ground end GND, the 2 nd pin and the 6 th pin of the 555 chip are connected in parallel and then connected with the ground end GND through a capacitor C2, and the 2 nd pin of the 555 chip is connected with the 7 th pin through a resistor R2; a 7 th pin of the 555 chip is connected with an 8 th pin and a 4 th pin of the 555 chip in parallel through a resistor R1 and then is connected with a working power supply Vcc; the 5 th pin of the 555 chip is connected with a ground end GND through a capacitor C3; and the 3 rd pin of the 555 chip is connected with the output end Uzo of the oscillating circuit and the input end Ufi of the frequency dividing circuit.

The frequency division circuit comprises a 4060 counting chip; the 11 th pin of the 4060 counting chip is an input end Ufi of the frequency dividing circuit, the 8 th pin and the 12 th pin of the 4060 counting chip are connected in parallel and then connected with a ground end GND, and the 16 th pin of the 4060 counting chip is connected with a working power supply Vcc; the 1 st, 2 nd and 3 rd pins of the 4060 counting chip are respectively connected with the output end Ufo of the frequency division circuit through selection switches K1, K2 and K3; the divider circuit output Ufo is connected to the monostable input Udi.

The monostable circuit comprises a 555 chip; the 1 st pin of the 555 chip is connected with a ground terminal GND, the 2 nd pin of the 555 chip is a monostable circuit input terminal Udi, the 6 th pin and the 7 th pin of the 555 chip are connected in parallel and then are connected with the ground terminal GND through a capacitor C4, and the 7 th pin of the 555 chip is connected with the 8 th pin and the 4 th pin of the 555 chip in parallel and then is connected with a working power supply Vcc through a resistor R3; a diode D1 and a resistor R4 are connected in parallel between the working power supply Vcc and the monostable circuit input end Udi; the anode of the diode D1 is connected with the monostable circuit input end Udi, and the cathode of the diode D1 is connected with the working power supply Vcc; the 5 th pin of the 555 chip is connected with a ground end GND through a capacitor C5; the 3 rd pin of the 555 chip is a monostable circuit output end Udo; the monostable circuit output Udo is connected to the gate G of the switching circuit.

The switch circuit comprises an MOS tube; the source S of the MOS tube is connected with the power supply + electrode output of the voltage stabilizing circuit DC12V, and the drain D of the MOS tube is connected with one power supply input end of the industrial control equipment; the drain D is connected with a ground end GND through a resistor R5; the gate G is connected with a ground end GND through a resistor R4; and the grid G of the MOS tube is connected with the output end Udo of the monostable circuit.

And a filter capacitor C1 is connected in parallel between the working power supply Vcc and the ground end GND of the oscillating circuit, the frequency dividing circuit and the monostable circuit. A coupling capacitor C6 is arranged between the output end Ufo of the frequency dividing circuit and the input end Udi of the monostable circuit. The selection switch K1 is used for 6-hour time selection; k2 for 12 hour time selection; k3 was selected for a 24 hour period.