CN107834503A - A kind of breaker - Google Patents

Abstract

The invention relates to a circuit breaker and belongs to the technical field of electronic circuits. The circuit breaker is used in a switch cabinet, and the switch cabinet includes: a cabinet body, a cabinet door corresponding to the cabinet body, a state detection device and a communication device for detecting the opening/closing state of the cabinet door. The circuit breaker includes: an anti-theft circuit, a controller, an alarm, a switch, an opening control circuit connected with the switch, and a closing control circuit connected with the switch. The circuit breaker can open or close according to the state information detected by the state detection device. When the cabinet door is detected to be opened, the circuit breaker will automatically open to ensure the safety of the personnel on site, and at the same time alarm to give the electricity thief a warning. Deterrence, and sending the current state information of the circuit breaker to the communication device, so that external personnel can know this state; when the switch cabinet is closed, the circuit breaker is automatically closed, and electricians do not need to manually close the switch on site, which greatly saves Save manpower and material resources, improve power generation efficiency.

Description

a circuit breaker

technical field

The invention belongs to the technical field of electronic circuits, and in particular relates to a circuit breaker.

Background technique

With the development of economy and science and technology, people's demand for electricity safety is getting higher and higher. As an important component in electricity safety, circuit breakers can automatically cut off the current after the current exceeds the trip setting. The circuit breakers currently on the market do not have the intelligent anti-theft function. When the switch cabinet is opened, it cannot record and alarm, so that other non-professional operators can be forced to enter the power distribution cabinet for power operation, and the electric energy is illegally occupied, resulting in There are countless acts of non-metering or under-metering electricity consumption by illegal means. This kind of stealing electricity has great hidden danger to human safety, and has brought serious economic loss to the country simultaneously.

Contents of the invention

In view of this, the purpose of the present invention is to provide a circuit breaker to effectively improve the above problems.

Embodiments of the present invention are achieved like this:

An embodiment of the present invention provides a circuit breaker, which is applied in a switch cabinet, and the switch cabinet includes: a cabinet body, a cabinet door corresponding to the cabinet body, and a state for detecting the opening/closing state of the cabinet door Detection device and communication device. The circuit breaker includes: an anti-theft circuit, a controller, an alarm, a switch, an opening control circuit connected with the switch, and a closing control circuit connected with the switch. The anti-stealing circuit, the alarm, the opening control circuit and the closing control circuit are all connected to the controller, and the anti-stealing circuit is also used to communicate with the state detection device and the connected to the communication device. The anti-stealing circuit is used to send the state information detected by the state detection device to the controller, and send the current state of the circuit breaker sent by the controller to the communication device. When the state information is in the open state, the controller controls the opening control circuit to adjust the switch from the closed state to the disengaged state, so that the circuit breaker is in the open state, and at the same time controls the alarm alarm; and when the state information is in the closed state, the controller controls the closing control circuit to adjust the switch from the disengaged state to the closed state, and then makes the circuit breaker in the closed state The closed state.

In a preferred embodiment of the present invention, the anti-stealing circuit includes: an input circuit, a transceiver circuit and an external port, the input circuit and the transceiver circuit are both connected to the external port, and the input circuit and the transceiver circuit The circuits are also connected to the controller, and the external port is used to connect with the state detection device and the communication device; the input circuit is used to send the state information detected by the state detection device to the a controller; the transceiver circuit is used to send the current state of the circuit breaker sent by the controller to the communication device.

In a preferred embodiment of the present invention, the input circuit includes: a first pull-up resistor and a Zener diode, one end of the first pull-up resistor is connected to a power supply, and the other end of the first pull-up resistor It is connected to the cathode terminal of the Zener diode, the anode terminal of the Zener diode is grounded, and the other end of the first pull-up resistor is also respectively connected to the external port and the controller.

In a preferred embodiment of the present invention, the transceiver circuit includes: a transceiver; the first pin, the second pin, the third pin and the fourth pin of the transceiver are all connected to the controller , both the sixth pin and the seventh pin of the transceiver are connected to the external port.

In a preferred embodiment of the present invention, the transceiver circuit further includes: a first current limiting resistor and a second current limiting resistor, the sixth pin is connected to the external port through the first current limiting resistor, The seventh pin is connected to the external port via the second current limiting resistor.

In a preferred embodiment of the present invention, the transceiver circuit further includes: a transient suppression diode, the sixth pin is also connected to one end of the transient suppression diode, and the seventh pin is also connected to the Connect the other end of the TVS diode.

In a preferred embodiment of the present invention, the opening control circuit includes: a first control circuit and a release, the first control circuit is connected to the controller and the release respectively, and the release The button is connected with the switch, the first control circuit includes: a first switch tube and a rectifier device, the first end of the first switch tube is connected with the controller, the second switch tube of the first switch tube terminal is connected to the rectifying device, and the rectifying device is connected to the release, and the controller controls the release by controlling the conduction of the first switch tube to make the switch from the closed state Adjusting to the disengaged state to realize the opening of the circuit breaker.

In a preferred embodiment of the present invention, the first control circuit further includes: a first protection circuit, the first protection circuit is connected to the first end of the first switch tube, and is used to protect the first turning tube.

In a preferred embodiment of the present invention, the closing control circuit includes: a second control circuit and a motor, the second control circuit is connected to the controller and the motor respectively, and the motor is connected to the switch connected, the second control circuit includes: a second switch tube and a relay, the first end of the second switch tube is connected to the controller, the second end of the second switch tube is connected to the coil of the relay The normally open contact of the relay is connected to the motor, the common contact of the relay is used to connect with the power supply, and the controller controls the conduction of the second switch tube to control the common contact The point is connected to the normally open contact, thereby driving the motor to rotate to adjust the switch from the disengaged state to the closed state, thereby realizing the closing of the circuit breaker.

In a preferred embodiment of the present invention, the second control circuit further includes: a second protection circuit, the second protection circuit is connected to the first end of the second switch tube, and is used to protect the second turning tube.

The circuit breaker provided by the embodiment of the present invention is applied in a switch cabinet, and the switch cabinet includes: a cabinet body, a cabinet door corresponding to the cabinet body, a state detection device for detecting the open/close state of the cabinet door, and communication device. The circuit breaker includes: an anti-stealing circuit, a controller, an alarm, a switch, an opening control circuit connected to the switch and a closing control circuit connected to the switch, the anti-stealing circuit, the The alarm, the opening control circuit and the closing control circuit are all connected to the controller, and the anti-stealing circuit is also used to be connected to the state detection device and the communication device. The anti-stealing circuit is used to send the state information detected by the state detection device to the controller, and send the current state of the circuit breaker sent by the controller to the communication device. When the state information is in the open state, the controller controls the opening control circuit to adjust the switch from the closed state to the disengaged state, so that the circuit breaker is in the open state, and at the same time controls the alarm alarm; and when the state information is in the closed state, the controller controls the closing control circuit to adjust the switch from the disengaged state to the closed state, and then makes the circuit breaker in the closed state The closed state. The circuit breaker can open or close according to the state information detected by the state detection device. When it detects that the cabinet door is opened, the circuit breaker will automatically open to ensure the safety of the personnel on site, and at the same time alarm to give a warning to the electricity thief. Deterrence, and sending the current state information of the circuit breaker to the communication device, so that external personnel can know this state; when the switchgear is closed, the circuit breaker is automatically closed, without the need for electricians to manually close the switch on site, which greatly saves It saves manpower and material resources and improves the power generation efficiency.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or can be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort. The above and other objects, features and advantages of the present invention will be more clearly illustrated by the accompanying drawings. Like reference numerals designate like parts throughout the drawings. The drawings are not intentionally scaled according to the actual size, and the emphasis is on illustrating the gist of the present invention.

Fig. 1 shows a schematic structural diagram of a circuit breaker provided by an embodiment of the present invention.

Fig. 2 shows a schematic structural diagram of an anti-stealing circuit provided by an embodiment of the present invention.

Fig. 3 shows a schematic circuit diagram of an anti-stealing circuit provided by an embodiment of the present invention.

Fig. 4 shows a schematic structural diagram of an opening control circuit provided by an embodiment of the present invention.

Fig. 5 shows a schematic circuit diagram of a first control circuit provided by an embodiment of the present invention.

Fig. 6 shows a schematic structural diagram of a closing control circuit provided by an embodiment of the present invention.

Fig. 7 shows a schematic circuit diagram of a second control circuit provided by an embodiment of the present invention.

Icons: 10 - circuit breaker; 11 - anti-theft circuit; 111 - input circuit; 112 - transceiver circuit; 113 - external port; 12 - controller; 13 - opening control circuit; 131 - first control circuit; 1311 - 1312-rectifier; 1313-first protection circuit; 132-release device; 14-closing control circuit; 141-second control circuit; 1411-second switch tube; 1412-relay; 1413- The second protection circuit; 142-motor; 15-switch; 16-alarm.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "inner" and "outer" are based on the attached The orientation or positional relationship shown in the figure, or the conventional orientation or positional relationship of the invention product in use, is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, are constructed and operate in a particular orientation and therefore are not to be construed as limiting the invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation", "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

An embodiment of the present invention provides a circuit breaker 10 , as shown in FIG. 1 . The circuit breaker 10 includes: an anti-theft circuit 11 , a controller 12 , an opening control circuit 13 , a closing control circuit 14 , an alarm 16 and a switch 15 .

The circuit breaker 10 is applied in a switch cabinet, and the switch cabinet includes: a cabinet body, a cabinet door corresponding to the cabinet body, a state detection device and a communication device. The state detection device, the communication device and the circuit breaker 10 are all arranged in the cabinet. As an optional implementation manner, the communication device is an RS485 device, and communicates with peripheral devices through an RS485 bus. Wherein, the peripheral device may be a computer. The state detection device is used to detect the open/close state of the cabinet door. For example, the state detection device may be a safety door switch, which will be triggered when the cabinet door is opened or closed, and the state of the cabinet door can be known according to the state of the safety door switch. For example, when the cabinet door is opened, the safety door switch is short-circuited, and when the cabinet door is closed, the safety door switch returns to normal.

The anti-stealing circuit 11 is connected with the controller 12, and is also used for connecting with the state detection device and the communication device. The anti-stealing circuit 11 is used to send the state information detected by the state detection device to the controller 12, and send the current state of the circuit breaker 10 sent by the controller 12 to the communication device . In this embodiment, as shown in FIG. 2 , the anti-stealing circuit 11 has an input circuit 111 , a transceiver circuit 112 and an external port 113 .

The input circuit 111 is connected to the external port 113 and the controller 12 respectively, and is used for sending the status information detected by the status detection device to the controller 12 . In this embodiment, preferably, as shown in the lower left dotted box in FIG. 3 , the input circuit 111 includes: a first pull-up resistor R1 and a Zener diode D1 . One end of the first pull-up resistor R1 is connected to a power supply (such as a +5V power supply), and the other end of the first pull-up resistor R1 is connected to the cathode end of the Zener diode D1, and the Zener diode The anode end of D1 is grounded, and the other end of the first pull-up resistor R1 is connected to the external port 113 and the controller 12 respectively.

The transceiver circuit 112 is connected with the external port 113 and the controller 12 respectively, and is used for sending the current state of the circuit breaker 10 sent by the controller 12 to the communication device. In this embodiment, as shown in the upper left dashed box in the figure, the transceiver circuit 112 includes: a transceiver U1 , a first current limiting resistor R2 , a second current limiting resistor R3 and a TVS diode D2 . The transceiver U1 includes: a first pin (RO), a second pin (RE), a third pin (DE), a fourth pin (DI), a fifth pin (GND), a sixth pin (A), the seventh pin (B), and the eighth pin (VCC). Wherein, the first pin (RO), the second pin (RE), the third pin (DE), and the fourth pin (DI) are all connected to the controller 12 . Both the sixth pin (A) and the seventh pin (B) are connected to the external port 113, further, the sixth pin (A) is connected to the external port 113 through the first current limiting resistor R2 ; The seventh pin (B) is connected to the external port 113 through the second current limiting resistor R3. In addition, the sixth pin (A) is also connected to one end of the transient suppression diode D2, and the seventh pin (B) is also connected to the other end of the transient suppression diode D2. And the seventh pin (B) is grounded through a pull-down resistor R4.

Wherein, the external port 113 is respectively connected to the input circuit 111 and the transceiver circuit 112 , and is also used to be connected to the state detection device and the communication device, and is also connected to the controller 12 . As shown in the dotted line box on the right in FIG. 3 , preferably, the external port 113 is a 7-hole external port 113 . Wherein, J1 in FIG. 3 is the external port 113 . Among them, pins 1 and 2 in J1 are used to connect with the communication device; pins 4, 5 and 6 in J1 are used to connect with the state detection device; pins 3 and 7 in J1 are used to connect with the controller 12 .

Among them, when the cabinet door is opened, pins 4 and 5 in J1 are short-circuited, and the level input to the controller 12 by the input circuit 111 is zero level at this time. When the cabinet door is closed, pins 4 and 5 in J1 The pin is no longer short-circuited, and returns to normal. At this time, the level input by the input circuit 111 to the controller 12 is a high level, for example, in this embodiment, it is a level of 5V, and the controller 12 is based on the input level of the input circuit 111. The state of the box door and the time when the box door is opened can be judged by the change.

When the state information of the cabinet door is in an open state, that is, when the level input by the input circuit 111 is at zero level, the controller 12 controls the opening control circuit 13 to adjust the switch 15 from the closed state to the disengaged state, And then make described circuit breaker 10 be in opening state, control described alarm 16 to give an alarm simultaneously, so that a kind of deterrent force is given to the electricity thief, and information such as the current state of circuit breaker 10, the state of cabinet door is sent to transceiver. Circuit 112, so that it can be transmitted to the peripheral equipment through the communication device, so that relevant personnel can check and know the situation in time. In addition, when the state information of the cabinet door is closed, that is, when the level input by the input circuit 111 is high, which is 5V in this embodiment, the controller 12 controls the closing control circuit 14 to make the switch 15 adjust from the disengaged state to the closed state, and then make the circuit breaker 10 in the closed state, and at the same time, send information such as the current state of the circuit breaker 10 and the time when the cabinet door is opened to the transceiver circuit 112, so that it can be transmitted to the peripheral equipment through the communication device, so that relevant personnel can check and know the situation in time.

Wherein, the controller 12 may be an integrated circuit chip, which has a signal processing capability. The above-mentioned controller 12 can be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; it can also be a digital signal processor (Digital Signal Processing, DSP), a dedicated Integrated circuit (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. A general purpose processor may be a microprocessor or the controller 12 may be any conventional processor or the like. In this embodiment, preferably, the controller 12 may be an STM32 series processor, such as STM32F103C8T6, STM32F103VET6 and other models.

The opening control circuit 13 is used to adjust the switch 15 from the closed state to the disengaged state according to the control of the controller 12 so as to realize the opening of the circuit breaker 10 . As shown in Figure 4. The opening control circuit 13 includes: a first control circuit 131 and a release 132 .

The first control circuit 131 is respectively connected to the controller 12 and the trip unit 132 , and the trip unit 132 is connected to the switch 15 . In this embodiment, as shown in FIG. 4 , the first control circuit 131 includes: a first switching tube 1311 , a rectifying device 1312 and a first protection circuit 1313 .

The first end of the first switching tube 1311 is connected to the controller 12, the second end of the first switching tube 1311 is connected to the rectifying device 1312, and the rectifying device 1312 is connected to the release 132 connected, the controller 12 controls the tripper 132 by controlling the conduction of the first switch tube 1311 to adjust the switch 15 from the closed state to the disengaged state so as to realize the opening of the circuit breaker 10 . In this embodiment, as shown in FIG. 5 , preferably, the first switch tube 1311 is an NPN transistor Q1, the rectifier device 1312 is a rectifier diode D3, and the base of the transistor Q1 is connected to the controller 12 Further, the base of the triode Q1 is also connected to the controller 12 through a current limiting resistor R8, the emitter of the triode Q1 is grounded, and the collector of the triode Q1 is connected to the anode terminal of the rectifier diode D3 . In addition, both ends of the rectifier diode D3 are connected to the release 132 .

Wherein, in order to protect the first switch tube 1311 from damage, the first protection circuit 1313 is connected to the first end of the first switch tube 1311, further, the first protection circuit 1313 and the first switch tube 1311 Base terminal connection. In this embodiment, as shown in FIG. 5 , the first protection circuit 1313 includes: a seventh resistor R7 and a second capacitor C2. The seventh resistor R7 is connected in parallel with the second capacitor C2, one end of the seventh resistor R7 is connected to the base of the transistor Q2, and the other end of the seventh resistor R7 is grounded. The second capacitor C2 can effectively prevent sudden changes in voltage and absorb the overvoltage in the peak state, while the seventh resistor R7 can play a damping role and consume the energy of the overvoltage, thereby suppressing the oscillation of the circuit. In addition, the seventh resistor R7 also The electric energy of the second capacitor C2 is absorbed to prevent the discharge current of the second capacitor C2 from being too large, and avoid damage to the first switch tube 1311 .

Among them, J2 in Fig. 5 is the release plug used to connect with the release 132. At this time, it can be seen from the figure that there is a voltage of +24V on the release plug, and the DC-DC output of the switching power supply is usually The voltage is +12V, therefore, a boost circuit can be used, for example, the MC34063 boost chip is used as the boost circuit of the core device of the circuit, and the voltage output by the DC-DC of the switching power supply is boosted to +24V for the release 132 powered by. Therefore, the above-mentioned circuit breaker 10 may also include components such as a switching power supply DC-DC, a boost circuit, and a power supply module for supplying power to the controller 12 .

The closing control circuit 14 is used to adjust the switch 15 from the disengaged state to the closed state according to the control of the controller 12 , so as to realize the closing of the circuit breaker 10 . As shown in Figure 6. The closing control circuit 14 includes: a second control circuit 141 and a motor 142 .

The second control circuit 141 is respectively connected to the controller 12 and the motor 142, and the motor 142 is connected to the switch 15. In this embodiment, as shown in FIG. 6, the second control circuit 141 includes: a second switch tube 1411 , a relay 1412 and a second protection circuit 1413 .

The first end of the second switching tube 1411 is connected to the controller 12, the second end of the second switching tube 1411 is connected to the coil of the relay 1412, and the normally open contact of the relay 1412 is connected to the The motor 142 is connected, the common contact of the relay 1412 is used to connect with the power supply, the controller 12 controls the common contact and the normally open contact by controlling the conduction of the second switch tube 1411 is turned on, so as to drive the motor 142 to rotate to adjust the switch 15 from the disengaged state to the closed state, thereby realizing the closing of the circuit breaker 10 . In this embodiment, as shown in FIG. 7, preferably, the second switch tube 1411 is an NPN transistor Q2, and the base of the transistor Q2 is connected to the controller 12. Further, the base of the transistor Q2 The pole is also connected to the controller 12 through a current limiting resistor R10, the emitter of the triode Q2 is grounded, and the collector of the triode Q2 is connected to the coil of the relay 1412.

Wherein, in order to protect the second switch tube 1411 from damage, the second protection circuit 1413 is connected to the first end of the second switch tube 1411, further, the second protection circuit 1413 is connected to the second switch tube 1411 Base terminal connection. In this embodiment, as shown in FIG. 7 , the second protection circuit 1413 includes: a ninth resistor R9 and a third capacitor C3. The ninth resistor R9 is connected in parallel with the third capacitor C3, one end of the ninth resistor R9 is connected to the base of the transistor Q2, and the other end of the ninth resistor R9 is grounded. The third capacitor C3 can effectively prevent sudden changes in voltage and absorb the overvoltage in the peak state, while the ninth resistor R9 can play a damping role and consume the energy of the overvoltage, thereby suppressing the oscillation of the circuit. In addition, the ninth resistor R9 also The electric energy of the third capacitor C3 is absorbed to prevent the discharge current of the third capacitor C3 from being too large, and avoid damage to the second switch tube 1411 .

Wherein, J3 in FIG. 7 is a motor plug for connecting with the motor 142 .

The alarm device 16 is connected with the controller 12 and is used for sending out an alarm prompt according to the control of the controller 12 . Further, when the cabinet door is opened, that is, when the level input by the input circuit 111 is zero level, the controller 12 controls the alarm 16 to alarm. Wherein, the prompting method may be a sound prompt, or a flashing signal light prompt, or a combination of the two. In this embodiment, the alarm 16 may be an audible and visual alarm, a buzzer, or a warning light, or an alarm device composed of a buzzer and a warning light, which is not further limited here.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. a kind of breaker, it is characterised in that applied in switch cubicle, the switch cubicle includes：It is cabinet, relative with the cabinet The cabinet door answered, condition checkout gear and communicator for detecting the opening/closing state of the cabinet door；The breaker includes：It is anti- Stealing circuit, controller, alarm, switch, the conjunction with the sub-gate control circuit of the switch connection and with the switch connection Lock control circuit, the burglar-proof electric circuit, the alarm, the sub-gate control circuit and the contacting controling circuit are and institute Controller connection is stated, the burglar-proof electric circuit is additionally operable to be connected with the condition checkout gear and the communicator；

The burglar-proof electric circuit is used to the status information that the condition checkout gear detects being sent to the controller, and will The current state for the breaker that the controller is sent is sent to the communicator；

When the status information is open mode, the controller controls the sub-gate control circuit to make the switch from closing State is adjusted to disengaged position, and then the breaker is in gate-dividing state, while controls the alarm to be alarmed；With And when the status information is closed mode, the controller controls the contacting controling circuit switch is taken off from described It is adjusted to described from state and closes state, and then the breaker is in the "on" position.

2. breaker according to claim 1, it is characterised in that burglar-proof electric circuit includes：Input circuit, transmission circuit and External-connected port, the input circuit and the transmission circuit are connected with the external-connected port, the input circuit and the receipts Power Generation Road is to be connected also with the controller, and the external-connected port is used for and the condition checkout gear and the communicator Connection；

The input circuit is used to the status information that the condition checkout gear detects being sent to the controller；

The current state for the breaker that the transmission circuit is used to send the controller is sent to the communicator.

3. breaker according to claim 2, it is characterised in that the input circuit includes：First pull-up resistor and steady Press diode, one end of first pull-up resistor be connected with a power supply, the other end of first pull-up resistor and it is described surely The cathode terminal connection of diode, the anode tap ground connection of the voltage-regulator diode are pressed, the other end of first pull-up resistor also divides It is not connected with the external-connected port and the controller.

4. breaker according to claim 2, it is characterised in that the transmission circuit includes：Transceiver；The transceiver The first pin, second pin, the 3rd pin and the 4th pin be connected with the controller, the 6th pin of the transceiver It is connected with the 7th pin with the external-connected port.

5. breaker according to claim 4, it is characterised in that the transmission circuit also includes：First current-limiting resistance and Second current-limiting resistance, the 6th pin are connected through first current-limiting resistance with the external-connected port, the 7th pin warp Second current-limiting resistance is connected with the external-connected port.

6. breaker according to claim 4, it is characterised in that the transmission circuit also includes：Transient Suppression Diode, The one end of 6th pin also with the Transient Suppression Diode is connected, and the 7th pin also suppresses two poles with the transient state The other end connection of pipe.

7. according to the breaker described in claim any one of 1-6, it is characterised in that the sub-gate control circuit includes：First Control circuit and electrical apparatus release, the first control circuit are connected with the controller and the electrical apparatus release respectively, the electrical apparatus release Connected with the switch, the first control circuit includes：First switch pipe and fairing, the first of the first switch pipe End is connected with the controller, and the second end of the first switch pipe is connected with the fairing, the fairing and institute Electrical apparatus release connection is stated, the controller controls the electrical apparatus release to make the switch by controlling the conducting of the first switch pipe Disengaged position is adjusted to from the state of closing so as to realize opening a sluice gate for the breaker.

8. breaker according to claim 7, it is characterised in that the first control circuit also includes：First protection electricity Road, first protection circuit are connected with the first end of the first switch pipe, for protecting the first switch pipe.

9. according to the breaker described in claim any one of 1-6, it is characterised in that the contacting controling circuit includes：Second Control circuit and motor, the second control circuit respectively with the controller and the motor connection, the motor with it is described Switch connection, the second control circuit include：Second switch pipe and relay, the first end of the second switch pipe with it is described Controller is connected, and the second end of the second switch pipe is connected with the coil of the relay, the normally opened contact of the relay With the motor connection, the common of the relay is used to be connected with power supply, and the controller is by controlling described second The conducting of switching tube controls the common to be turned on the normally opened contact, makes described open so as to drive the motor to rotate Pass is adjusted to described from the disengaged position and closes state, and then realizes the combined floodgate of the breaker.

10. according to the breaker described in any one of claim 9, it is characterised in that the second control circuit also includes：Second Protection circuit, second protection circuit are connected with the first end of the second switch pipe, for protecting the second switch pipe.