CN220021011U

CN220021011U - Wireless control's circuit breaker divide-shut brake device

Info

Publication number: CN220021011U
Application number: CN202320762801.6U
Authority: CN
Inventors: 王成华; 李铁牛; 杨延涛
Original assignee: Shenzhen Enjoy Technology Co ltd
Current assignee: Shenzhen Enjoy Technology Co ltd
Priority date: 2023-04-10
Filing date: 2023-04-10
Publication date: 2023-11-14
Anticipated expiration: 2033-04-10

Abstract

The embodiment of the utility model discloses a wireless control circuit breaker opening and closing device which is connected with a circuit breaker, wherein the circuit breaker opening and closing device comprises a first shell and a second shell, a control board is arranged in the first shell, a driving board is arranged in the second shell, the control board is in wireless connection with the driving board, and the driving board is connected with the circuit breaker; the control board sends an opening and closing instruction of the circuit breaker to the driving board; the driving board drives the circuit breaker to execute corresponding opening and closing operation according to the opening and closing instruction, and outputs a corresponding feedback signal according to an operation result and sends the feedback signal to the control board; the control panel carries out corresponding lighting prompt according to the feedback signal. The switching-on and switching-off instruction is remotely transmitted in a wireless mode, a cable connection controller and a circuit breaker are not needed, the cable cost is saved, and the safety problems existing in cable laying and use are solved; meanwhile, manual opening and closing operation is not needed, and wireless control is safer and saves time.

Description

Wireless control's circuit breaker divide-shut brake device

Technical Field

The utility model relates to the technical field of electronics, in particular to a wireless control circuit breaker opening and closing device.

Background

In the process of powering up and down the frame-type circuit breaker and the molded case circuit breaker, because the switching-on and switching-off operations of the circuit breaker are controlled by adopting wired transmission pulse signals, when the circuit breaker in the cabinet is powered up and down or needs to be independently debugged, the circuit breaker is often required to be manually switched on and off, or a controller for switching-on and switching-off is controlled. The manual operation is time-consuming and labor-consuming and has safety problems; the controller is usually arranged at a place far from the breaker, a longer cable needs to be additionally connected, and the longer cable is paved to have safety problems for construction and use, and the cost is increased.

Disclosure of Invention

Aiming at the technical problems, the embodiment of the utility model provides a wireless control circuit breaker opening and closing device, which aims to solve the problem of higher cost of the existing wired control opening and closing.

The embodiment of the utility model provides a wireless control circuit breaker opening and closing device, which is connected with a circuit breaker and comprises a first shell and a second shell, wherein a control board is arranged in the first shell, a driving board is arranged in the second shell, the control board is in wireless connection with the driving board, and the driving board is connected with the circuit breaker;

the control board sends an opening and closing instruction of the circuit breaker to the driving board; the driving board drives the circuit breaker to execute corresponding opening and closing operation according to the opening and closing instruction, and outputs a corresponding feedback signal according to an operation result and sends the feedback signal to the control board; the control panel carries out corresponding lighting prompt according to the feedback signal.

Optionally, in the wirelessly controlled circuit breaker opening and closing device, the control board is provided with a first power supply module, a first communication module, a first processing module and a button module; the first power supply module is connected with the first communication module, the first processing module and the button module; the first processing module is connected with the first communication module and the button module;

the first power supply module is used for converting main voltage input from the outside or built-in standby voltage into power supply voltage to supply power;

the first processing module outputs corresponding opening and closing instructions according to key operation of the button module, and the corresponding opening and closing instructions are transmitted to the driving plate through the first communication module;

the first communication module receives the feedback signal transmitted by the driving board and transmits the feedback signal to the first processing module, and the first processing module carries out corresponding lighting prompt according to the feedback signal.

Optionally, in the wireless control circuit breaker opening and closing device, the first communication module includes a first WIFI chip, a 1 st pin and a 25 th pin of the first WIFI chip are both connected to a first power supply end of the first auxiliary source circuit, and a 3 rd pin and a 24 th pin of the first WIFI chip are grounded; and the 8 th pin, the 9 th pin and the 41 st pin of the first WIFI chip are all connected with the first processing module.

Optionally, in the wirelessly controlled circuit breaker opening and closing device, the first communication module further includes a first switch tube, a second switch tube, a first indicator light and a first resistor; the base of the first switching tube is connected with the 28 th pin of the first WIFI chip, the collector of the first switching tube is connected with the collector of the second switching tube and the negative electrode of the first indicator lamp, the emitter of the first switching tube is connected with the emitter of the second switching tube and the ground, the base of the second switching tube is connected with the 29 th pin of the first WIFI chip, and the positive electrode of the first indicator lamp is connected with the second power supply end through the first resistor.

Optionally, in the wirelessly controlled circuit breaker opening and closing device, the first processing module includes a first single chip microcomputer, a third switch tube, a fourth switch tube, a fifth switch tube, a second indicator light, a third indicator light, a fourth indicator light and a second resistor;

the 31 st pin of the first singlechip is connected with the 8 th pin of the first WIFI chip, the 30 th pin of the first singlechip is connected with the 9 th pin of the first WIFI chip, the 23 rd pin of the first singlechip is connected with the 41 st pin of the first WIFI chip and the ground, and the 24 th pin, the 36 th pin and the 48 th pin of the first singlechip are all connected with the first power supply end; the 39 th pin and the 40 th pin of the first singlechip are both connected with the button module, the 35 th pin and the 47 th pin of the first singlechip are both grounded, the 14 th pin of the first singlechip is connected with the base electrode of the third switching tube, the 15 th pin of the first singlechip is connected with the base electrode of the fourth switching tube, and the 16 th pin of the first singlechip is connected with the base electrode of the fifth switching tube; the collector of the third switching tube is connected with the negative electrode of the second indicator lamp, the collector of the fourth switching tube is connected with the negative electrode of the third indicator lamp, and the collector of the fifth switching tube is connected with the negative electrode of the fourth indicator lamp; the emitter of the third switching tube, the emitter of the fourth switching tube and the emitter of the fifth switching tube are all grounded; the positive electrode of the second indicator lamp, the positive electrode of the third indicator lamp and the positive electrode of the fourth indicator lamp are all connected with one end of the second resistor, and the other end of the second resistor is connected with the second power supply end.

Optionally, in the wirelessly controlled circuit breaker opening and closing device, the first processing module further includes a first isolation chip, a first data transceiver, a third resistor, a fourth resistor and a fifth resistor;

the 1Y pin, the 2A pin and the 3A pin of the first isolation chip are connected with the 13 th pin, the 11 th pin and the 12 th pin of the first singlechip one to one; the 1Y pin of the first isolation chip is connected with the first power supply end through a third resistor, and the 1A pin of the first isolation chip is connected with the RO pin of the first data transceiver; the 2Y pin of the first isolation chip is connected with the first data transceiverA foot, a DE foot and one end of a fourth resistor; the 3Y pin of the first isolation chip is connected with the DI pin of the first data transceiver and one end of the fifth resistor, and the other end of the fourth resistor is connected with the other end of the fifth resistor and the second power supply end.

Optionally, in the wirelessly controlled opening and closing device of the circuit breaker, the button module includes a closing button, an opening button, a first optocoupler, a second optocoupler, a sixth resistor, a seventh resistor and an eighth resistor;

the switch-on button's 2 nd feet of first opto-coupler are connected to the one end, the isolation ground is connected to the other end of switch-on button, the 2 nd feet of second opto-coupler are connected to the one end of the 1 st foot of first opto-coupler and eighth resistance of second opto-coupler is connected to the other end of eighth resistance, the 39 th foot of first singlechip and the one end of sixth resistance are connected to the 4 th foot of first opto-coupler, the first power supply end is connected to the other end of sixth resistance, the 40 th foot of first singlechip and the one end of seventh resistance are connected to the 4 th foot of second opto-coupler, the first power supply end is connected to the other end of seventh resistance, the 3 rd foot of first opto-coupler and the 3 rd foot of second opto-coupler are all grounded.

Optionally, in the wirelessly controlled circuit breaker opening and closing device, the driving board is provided with a second power supply module, a second communication module, a second processing module and a contact control module; the second power supply module is connected with the second communication module, the second processing module and the contact control module; the second processing module is connected with the contact control module and the circuit breaker;

the second power supply module is used for converting main voltage input from the outside or built-in standby voltage into power supply voltage to supply power;

the second communication module receives the opening and closing instruction transmitted by the first communication module and transmits the opening and closing instruction to the second processing module;

the second processing module controls the circuit breaker to execute corresponding opening and closing operations according to the opening and closing instructions; detecting the current opening and closing state and outputting a corresponding feedback signal, and sending the feedback signal to the first communication module through the second communication module; the second processing module detects the power supply state and the data transmission state and carries out corresponding lighting prompt.

Optionally, in the wirelessly controlled circuit breaker opening and closing device, the second processing module includes a second single chip microcomputer, an eighth switching tube, a sixth indicator light and a tenth resistor;

the 31 st pin and the 30 th pin of the second singlechip are connected with the second communication module, the 23 rd pin of the second singlechip is connected with the second communication module and the ground, and the 24 th pin, the 36 th pin and the 48 th pin of the second singlechip are all connected with the first power supply end of the second power supply module; the contact control module is all connected to the 41 st foot, the 42 nd foot and the 43 rd foot of second singlechip, and the 35 th foot and the 47 th foot of second singlechip are all grounded, and the base of eighth switching tube is connected to the 14 th foot of second singlechip, and the negative pole of sixth pilot lamp is connected to the collecting electrode of eighth switching tube, and the projecting pole ground of eighth switching tube, the second power supply end of second power module is connected through tenth resistance to the positive pole of sixth pilot lamp.

Optionally, in the wirelessly controlled circuit breaker opening and closing device, the contact control module includes a third optocoupler, a first relay, a second relay, a ninth switching tube, a tenth switching tube, a first diode, a second diode, a fourteenth resistor and a fifteenth resistor;

the first pin of the third optocoupler is connected with the third power supply end of the second power supply module through a fifteenth resistor, the second pin of the third optocoupler is connected with one end of an opening and closing state feedback contact of the circuit breaker, the other end of the opening and closing state feedback contact is grounded, the 3 rd pin of the third optocoupler is grounded, the 4 th pin of the third optocoupler is connected with one end of the fourteenth resistor and the 41 th pin of the second singlechip, the other end of the fourteenth resistor is connected with the first power supply end of the second power supply module, the 5 th pin of the first relay is connected with one end of a closing coil of the circuit breaker, the 13 th pin of the first relay is connected with a positive electrode of the first diode and a collector electrode of the ninth switching tube, the 14 th pin of the first relay is connected with a negative electrode of the first diode and a second power supply end of the second power supply module, the base electrode of the ninth switching tube is connected with the 42 th pin of the second singlechip, the emitter electrode of the ninth switching tube is grounded, the 5 th pin of the second relay is connected with the first power supply end of the second power supply module, the 9 th pin of the second relay is connected with the second diode of the second switching tube, and the second diode of the second switching tube is connected with the second diode of the tenth end of the second switching tube.

In the technical scheme provided by the embodiment of the utility model, the circuit breaker opening and closing device which is controlled by wireless is connected with the circuit breaker and comprises a first shell and a second shell, wherein a control board is arranged in the first shell, a driving board is arranged in the second shell, the control board is connected with the driving board in a wireless way, and the driving board is connected with the circuit breaker; the control board sends an opening and closing instruction of the circuit breaker to the driving board; the driving board drives the circuit breaker to execute corresponding opening and closing operation according to the opening and closing instruction, and outputs a corresponding feedback signal according to an operation result and sends the feedback signal to the control board; the control panel carries out corresponding lighting prompt according to the feedback signal. The switching-on and switching-off instruction is remotely transmitted in a wireless mode, a cable connection controller and a circuit breaker are not needed, the cable cost is saved, and the safety problems existing in cable laying and use are solved; meanwhile, manual opening and closing operation is not needed, and wireless control is safer and saves time.

Drawings

Fig. 1 is a block diagram of a circuit breaker switching device with wireless control in an embodiment of the utility model.

Fig. 2 is a schematic structural diagram of a control board according to an embodiment of the present utility model.

Fig. 3 is a schematic structural diagram of a driving plate according to an embodiment of the utility model.

Fig. 4 is a schematic diagram illustrating pin definition of a WIFI chip according to an embodiment of the utility model.

Fig. 5 is a schematic diagram of pin definition of a single chip microcomputer according to an embodiment of the present utility model.

Fig. 6 is a schematic diagram illustrating pin definition of a relay according to an embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. Embodiments of the present utility model are intended to be within the scope of the present utility model as defined by the appended claims.

Referring to fig. 1, the opening and closing device of a wireless controlled circuit breaker provided by the embodiment of the utility model comprises a first shell and a second shell, wherein a control board 10 is arranged in the first shell, a driving board 20 is arranged in the second shell, the control board 10 is in wireless connection with the driving board 20, and the driving board 20 is connected with the circuit breaker (electric connection). The control board 10 remotely sends a switching-on and switching-off instruction of the circuit breaker to the driving board 20 through a wireless communication mode; the driving board 20 drives the breaker to execute corresponding opening and closing operations according to the received opening and closing instructions, and outputs corresponding feedback signals according to operation results and sends the feedback signals to the control board 10; the control board 10 performs a corresponding lighting prompt (i.e., lights a corresponding LED lamp) according to the feedback signal.

The embodiment adopts a wireless mode to remotely transmit the opening and closing command, a cable connection controller and a circuit breaker are not needed, the cable cost is saved, and the safety problem existing in cable laying and use is solved; meanwhile, manual opening and closing operation is not needed, and wireless control is safer and saves time.

Referring to fig. 2, the control board 10 is provided with a first power supply module 110, a first communication module 120, a first processing module 130 and a button module 140; the first power supply module 110 is connected with the first communication module 120, the first processing module 130 and the button module 140; the first processing module 130 connects the first communication module 120 and the button module 140. The first power supply module 110 is configured to convert an externally input main voltage or a built-in standby voltage into a power supply voltage to supply power to the first communication module 120, the first processing module 130, and the button module 140. The first processing module 130 outputs a corresponding opening/closing command according to the key operation of the button module 140, and transmits the opening/closing command to the driving board through the first communication module 120. The first communication module 120 receives the feedback signal transmitted by the driving board and transmits the feedback signal to the first processing module 130, and the first processing module 130 performs a corresponding lighting prompt according to the feedback signal.

In this embodiment, the first power supply module 110 includes a first power button (ON/OFF) 111, a first auxiliary source circuit 112, and a first standby power supply 113; the first power button 111 is connected with the first auxiliary source circuit 112 and an external live wire end L; the first auxiliary source circuit 112 is connected to the first standby power supply 113, the external neutral terminal N, the first communication module 120, and the first processing module 130. The method comprises the following steps: one end of the first power button 111 is connected to an external live wire end L, the other end of the first power button 111 is connected to a live wire end L1 of the first auxiliary source circuit 112, and a neutral wire end N1 of the first auxiliary source circuit 112 is connected to an external neutral wire end N; the first power supply terminal and the second power supply terminal of the first auxiliary source circuit 112 are connected to the first communication module 120 and the first processing module 130, and the third power supply terminal of the first auxiliary source circuit 112 is connected to the button module 140.

The first power button 111 is used for controlling the connection state of the external main voltage; when pressed, the external live wire end L is connected with the live wire end L1 of the first auxiliary source circuit 112, and the main voltage of 220V is input to the first auxiliary source circuit 112; when the first power button 111 is pushed again, the live terminal L is disconnected from the live terminal L1 of the first auxiliary source circuit 112, and the main voltage is stopped from being input.

The first auxiliary source circuit 112 rectifies, inverts and steps down the main voltage or the standby voltage; the existing step-down module can be adopted, wherein a first power supply end outputs a first power supply voltage Vcc of 3.3V, a second power supply end outputs a second power supply voltage Vdd of 5V, and a third power supply end outputs a third power supply voltage Vdd2 of 5V; the first power supply voltage Vcc and the second power supply voltage Vdd output power the first communication module 120 and the first processing module 130; the third power supply voltage Vdd2 is output to power the button module 140. The positive and negative pins 12v±of the external power supply of the first auxiliary source circuit 112 are connected to the positive and negative lines of the first standby power supply 113, and the charging voltage of the output 12V is output to charge the first standby power supply 113, and the standby voltage (12V) of the first standby power supply 113 is also reduced to each power supply voltage and output power.

The first standby power supply 113 is preferably a 12V rechargeable lithium battery pack (one-spring high capacity rechargeable lithium battery), and outputs a standby voltage of 12V to the first auxiliary source circuit 112 without a main voltage input. The 12V rechargeable battery pack adopts a three-string four-parallel mode (3 batteries are connected in series to form a group, 4 groups are connected in parallel again to form a whole), and is internally provided with an intelligent protection plate, wherein the intelligent protection plate has the functions of intelligent protection (such as overcurrent, overvoltage, overcharge, overdischarge, short circuit, reverse plug prevention and the like), no memory effect (along with charge and use, and the capacity and the service life of the batteries are not influenced), and low self-discharge (after being stored for an ultra-long time, such as along with taking and using in 180 days). When the intelligent protection board detects that the standby voltage is lower than the threshold value when the main voltage is accessed, the charging voltage output by the first auxiliary source circuit is obtained for charging.

The first communication module 120 adopts WIFI communication, and includes a first WIFI chip U1 with a model of WM6201EU or WM6201PU, and each pin definition of the first WIFI chip U1 is shown in fig. 4. The 1 st pin (Vcc pin) and the 25 th pin (3.3V pin) of the first WIFI chip U1 are both connected to the first power supply end of the first auxiliary source circuit 112, and the 3 rd pin (GND pin) and the 24 th pin (GND pin) of the first WIFI chip U1 are grounded; the 8 th pin (uart_txd pin), the 9 th pin (uart_rxd pin) and the 41 st pin (GND pin) of the first WIFI chip U1 are all connected to the first processing module 130.

The first WIFI chip U1 is internally provided with an on-board antenna (also called a PCB antenna) for wireless communication with the driving board. The 9 th pin of the first WIFI chip U1 receives the data instruction transmitted by the first processing module 130, processes (such as filtering) the data instruction, and then transmits the processed data instruction to the driving board through the on-board antenna. The feedback signal received by the on-board antenna is sent to the first processing module 130 through the 8 th pin of the first WIFI chip U1.

Preferably, the first communication module 120 further includes a first switching tube Q1, a second switching tube Q2, a first indicator light LED1, and a first resistor R1; the base B of the first switch tube Q1 is connected with the 28 th pin (LED_UART_TX pin) of the first WIFI chip U1, the collector C of the first switch tube Q1 is connected with the collector of the second switch tube Q2 and the cathode of the first indicator lamp LED1, the emitter E of the first switch tube Q1 is connected with the emitter of the second switch tube Q2 and the ground, the base B of the second switch tube Q2 is connected with the 29 th pin (LED_UART_RX pin) of the first WIFI chip U1, and the anode of the first indicator lamp LED1 is connected with the second power supply end through the first resistor R1.

Wherein the first indicator light LED1 is a data transmission indicator light; the first switching tube Q1 is used for switching when receiving a data signal, and the second switching tube Q2 is used for switching when transmitting a data signal, and is preferably an NPN triode. When the first WIFI chip U1 receives the feedback signal, a first pulse signal is output by a 28 th pin of the first WIFI chip to control the first switching tube Q1 to be continuously switched on and off, so that the first indicator light LED1 is controlled to flash; when the first WIFI chip U1 sends a data instruction to the driving plate, the 29 th pin of the first WIFI chip outputs a second pulse signal to control the second switching tube Q2 to be continuously switched on and off, so that the first indicator light LED1 is controlled to flash. In the implementation, the duty ratio of the first pulse signal and the second pulse signal can be set, so that the frequency of flashing when data, instructions or signals are received and transmitted is different, and the user can conveniently identify the current data transmission state.

The first processing module 130 includes a first single chip microcomputer (i.e., MCU) with a model of STM32F103, where each pin definition is shown in fig. 5), a third switching tube Q3, a fourth switching tube Q4, a fifth switching tube Q5, a second indicator light LED2, a third indicator light LED3, a fourth indicator light LED4, and a second resistor R2; the 31 st pin (namely the PA10 pin) of the first singlechip U2 is connected with the 8 th pin of the first WIFI chip U1, the 30 th pin (namely the PA9 pin) of the first singlechip U2 is connected with the 9 th pin of the first WIFI chip U1, the 23 rd pin (namely the VSS_1 pin) of the first singlechip U2 is connected with the 41 st pin and the ground of the first WIFI chip U1, and the 24 th pin (namely the VDD_1 pin), the 36 th pin (namely the VDD_2 pin) and the 48 th pin (namely the VDD_3 pin) of the first singlechip U2 are all connected with the first power supply end; the 39 th pin (namely PB3 pin) and the 40 th pin (namely PB4 pin) of the first single-chip microcomputer U2 are both connected with the button module 140, the 35 th pin (namely VSS_2 pin) and the 47 th pin (namely VSS_3 pin) of the first single-chip microcomputer U2 are both grounded, the 14 th pin (namely PA4 pin) of the first single-chip microcomputer U2 is connected with the base electrode of the third switching tube Q3, the 15 th pin (namely PA5 pin) of the first single-chip microcomputer U2 is connected with the base electrode of the fourth switching tube Q4, and the 16 th pin (namely PA6 pin) of the first single-chip microcomputer U2 is connected with the base electrode of the fifth switching tube Q5; the collector of the third switch tube Q3 is connected with the negative electrode of the second indicator light LED2, the collector of the fourth switch tube Q4 is connected with the negative electrode of the third indicator light LED3, and the collector of the fifth switch tube Q5 is connected with the negative electrode of the fourth indicator light LED 4; the emitter of the third switching tube Q3, the emitter of the fourth switching tube Q4 and the emitter of the fifth switching tube Q5 are all grounded; the positive electrode of the second indicator light LED2, the positive electrode of the third indicator light LED3 and the positive electrode of the fourth indicator light LED4 are all connected with one end of the second resistor R2, and the other end of the second resistor R2 is connected with a second power supply end.

In this embodiment, RS485 communication is adopted between the first single-chip microcomputer U2 and the first WIFI chip U1. The 39 th pin and the 40 th pin of the first singlechip U2 receive the switch-on/off command output by the key operation of the button module 140, and after the switch-on/off command is processed (such as filtered) inside the first WIFI chip, the switch-on/off command is transmitted to the driving board by the on-board antenna. The on-board antenna also receives feedback signals transmitted by the driving board, and the feedback signals are internally processed (such as noise removal and interference removal) by the first WIFI chip and then transmitted to the first singlechip U2. The first singlechip controls the corresponding indicator lamp to be always on according to the feedback signal.

The third switching tube Q3, the fourth switching tube Q4 and the fifth switching tube Q5 are all preferably NPN transistors. The second indicator light LED2 is a power status indicator light, and when the first singlechip U2 detects that the 24 th, 36 th and 48 th pins have the first power supply voltage Vcc input, the 14 th pin outputs a high level to control Q3 to be turned on, and the second indicator light LED2 is turned on. When the first singlechip U2 detects that the received feedback signal is a closing feedback signal, the high-level control Q4 is output from the 15 th pin to be conducted, and the third indicator light LED3 is lighted. The fourth indicator light LED4 is a brake-off state indicator light, when the first singlechip U2 detects that the received feedback signal is a brake-off feedback signal, the 16 th pin outputs high-level control Q5 to be conducted, and the fourth indicator light LED4 is lightened.

Preferably, 485 communication pins reserved on the first singlechip can be utilized, so that the first WIFI chip and the first singlechip are conveniently upgraded and debugged in the later stage. The first processing module 130 further includes a first isolation chip U3 (model SN74LVC07A is preferred), a first data transceiver U4 (ADM 483E is preferred), a third resistor R3, a fourth resistor R4, and a fifth resistor R5; the 1Y pin, the 2A pin and the 3A pin of the first isolation chip U3 are connected with the 13 th pin (namely the PA3 pin), the 11 th pin (namely the PA1 pin) and the 12 th pin (namely the PA2 pin) of the first singlechip U2 one to one; the 1Y pin of the first isolation chip U3 is connected with the first power supply end through a third resistor R3, and the 1A pin of the first isolation chip U3 is connected with the RO pin of the first data transceiver U4; the 2Y pin of the first isolation chip U3 is connected with the first data transceiver U4Foot, DE foot and fourthOne end of the resistor R4; the 3Y pin of the first isolation chip U3 is connected to the DI pin of the first data transceiver U4 and one end of the fifth resistor R5, and the other end of the fourth resistor R4 is connected to the other end of the fifth resistor R5 and the second power supply end.

The power supply of the first singlechip U2 and the first isolation chip U3 is 3.3V, the power supply of the first data transceiver U4 is 5.5V, and the voltage levels are different; in order to improve stability, it is necessary to isolate the two power supplies by the first isolation chip U3. The first data transceiver U4 is configured to perform data format conversion, where the pin a and the pin B are debug and upgrade ports, and connect with other devices to implement RS485 communication.

The button module 140 includes a switch-on button S1, a switch-off button S2, a first optocoupler OP1, a second optocoupler OP2, a sixth resistor R6, a seventh resistor R7, and an eighth resistor R8; one end of the switch-on button S1 is connected to the 2 nd pin (captode pin) of the first optocoupler OP1, the other end of the switch-on button S1 is connected to the isolated ground DGND, one end of the switch-off button S2 is connected to the 2 nd pin (captode pin) of the second optocoupler OP2, the other end of the switch-off button S2 is connected to the isolated ground DGND, the 1 st pin (inode pin) of the first optocoupler OP1 is connected to the 1 st pin (inode pin) of the second optocoupler OP2 and one end of the eighth resistor R8, the other end of the eighth resistor R8 is connected to the third power supply end, the 4 th pin (Collector pin) of the first optocoupler OP1 is connected to the 39 th pin of the first singlechip U2 and one end of the sixth resistor R6, the other end of the sixth resistor R6 is connected to the first power supply end, the 4 th pin (Collector pin) of the second optocoupler OP2 is connected to the 40 th pin of the first singlechip U2 and one end of the seventh resistor R7, and the other end of the seventh resistor R7 is connected to the first power supply end of the first optocoupler U3 and the second optocoupler OP 3.

The model numbers of the first optical coupler OP1 and the second optical coupler OP2 are preferably CT817C. At ordinary times, the 39 th pin (the IO port) of the first singlechip U2 is pulled up to be in a continuous high level (at the moment, OP1 is disconnected) by the sixth resistor R6, when the closing button S1 is pressed, the first optocoupler OP1 is conducted, a low-level trigger signal is generated on the 39 th pin, and the first singlechip can recognize that the closing button S1 is pressed and output a closing instruction. Similarly, at ordinary times, the 40 th pin of the first singlechip U2 is pulled up to be in a continuous high level by the seventh resistor R7, when the opening button S2 is pressed, the second optocoupler OP2 is conducted, a low-level trigger signal is generated on the 40 th pin, and the first singlechip can recognize that the opening button S2 is pressed and output an opening instruction. The isolated DGND and the third power supply end form a group of power supplies.

Referring to fig. 3, the driving board 20 is provided with a second power supply module 210, a second communication module 220, a second processing module 230 and a contact control module 240; the second power supply module 210 is connected with the second communication module 220, the second processing module 230 and the contact control module 240; the second processing module 230 connects the contact control module 240 and the circuit breaker. The second power supply module 210 is configured to convert an externally input main voltage or a built-in standby voltage into a power supply voltage to supply power to the second communication module 220, the second processing module 230, and the contact control module 240. The second communication module 220 receives the opening/closing command transmitted by the first communication module 120 and transmits the opening/closing command to the second processing module 230. The second processing module 230 controls the circuit breaker to execute corresponding opening and closing operations according to the opening and closing instructions; the current opening and closing state is also detected, and a corresponding feedback signal is output and sent to the first communication module 120 through the second communication module 220. The second processing module 230 detects the power supply state and the data transmission state and performs a corresponding lighting prompt.

The second power supply module 210 includes a second power button 211, a second auxiliary source circuit 212, and a second standby power supply 213, which are configured and connected in the same manner as the first power supply module 110, and are not described in detail herein.

The second communication module 220 also adopts WIFI communication, including a second WIFI chip U5 with a model of WM6201EU or WM6201PU, and the definition of each pin of the second WIFI chip U5 is also shown in fig. 4. The 1 st pin (Vcc pin) and the 25 th pin (3.3V pin) of the second WIFI chip U5 are both connected to the first power supply end of the second auxiliary source circuit 212, and the 3 rd pin (GND pin) and the 24 th pin (GND pin) of the second WIFI chip U5 are grounded; the 8 th pin (uart_txd pin), the 9 th pin (uart_rxd pin) and the 41 st pin (GND pin) of the second WIFI chip U5 are all connected to the second processing module 230.

The second WIFI chip U5 is internally provided with an onboard antenna for wireless communication with the control board. Similarly, the 9 th pin of the second WIFI chip U5 receives the feedback signal transmitted by the first processing module 130, processes (e.g. filters) the feedback signal, and then transmits the feedback signal to the control board through the on-board antenna. The data instruction received by the on-board antenna is sent to the second processing module 230 through the 8 th pin of the second WIFI chip U5.

Preferably, the second communication module 220 further includes a sixth switching tube Q6, a seventh switching tube Q7, a fifth indicator light LED5, and a ninth resistor R9; the base of the sixth switching tube Q6 is connected to the 28 th leg (led_uart_tx leg) of the second WIFI chip U5, the collector of the sixth switching tube Q6 is connected to the collector of the seventh switching tube Q7 and the negative electrode of the fifth indicator lamp LED5, the emitter of the sixth switching tube Q6 is connected to the emitter of the seventh switching tube Q7 and ground, the base of the second switching tube Q2 is connected to the 29 th leg (led_uart_rx leg) of the second WIFI chip U5, and the positive electrode of the fifth indicator lamp LED5 is connected to the second power supply end of the second auxiliary source circuit 212 through the ninth resistor R9.

Wherein, the fifth indicator light LED5 is also a data transmission indicator light; the sixth switching transistor Q6 is used for switching when receiving a data signal, and the seventh switching transistor Q7 is used for switching when transmitting a data signal, and is preferably an NPN triode. When the second WIFI chip U5 receives a data instruction, a third pulse signal is output by a 28 th pin of the second WIFI chip U5 to control a sixth switching tube Q6 to be continuously switched on and off, so that a fifth indicator light LED5 is controlled to flash; when the second WIFI chip U5 sends a feedback signal to the control board, the 29 th pin of the second WIFI chip outputs a fourth pulse signal to control the seventh switching tube Q7 to be continuously switched on and off, so that the fifth indicator light LED5 is controlled to flash.

The second processing module 230 includes a second single chip microcomputer U6 (each pin of which is defined as shown in fig. 5) with a model number of STM32F103, an eighth switching tube Q8, a sixth indicator light LED6, and a tenth resistor R10; the 31 st pin (i.e., PA10 pin) of the second single-chip microcomputer U6 is connected to the 8 th pin of the second WIFI chip U5, the 30 th pin (i.e., PA9 pin) of the second single-chip microcomputer U6 is connected to the 9 th pin of the second WIFI chip U5, the 23 rd pin (i.e., vss_1 pin) of the second single-chip microcomputer U6 is connected to the 41 st pin of the second WIFI chip U5 and ground, and the 24 th pin (i.e., vdd_1 pin), the 36 th pin (i.e., vdd_2 pin) and the 48 th pin (i.e., vdd_3 pin) of the second single-chip microcomputer U6 are all connected to the first power supply end of the second auxiliary source circuit 212; the 41 st (namely PB 5) pin, the 42 nd (namely PB 6) pin and the 43 rd (namely PB 7) pin of the second singlechip U6 are all connected with the contact control module 240, the 35 th (namely VSS_2) pin and the 47 th (namely VSS_3) pin of the second singlechip U6 are all grounded, the 14 th (namely PA 4) pin of the second singlechip U6 is connected with the base electrode of the eighth switching tube Q8, the collector electrode of the eighth switching tube Q8 is connected with the negative electrode of the sixth indicator lamp LED6, the emitter electrode of the eighth switching tube Q8 is grounded, and the positive electrode of the sixth indicator lamp LED6 is connected with the second power supply end of the second auxiliary source circuit 212 through a tenth resistor R10.

The sixth indicator light LED6 is a power status indicator light, when the 24 th, 36 th and 48 th pins of the second single chip microcomputer U6 are powered on, the 14 th pin outputs a high level to control the Q8 to be turned on, and the sixth indicator light LED6 is turned on. And a data instruction is transmitted between the second singlechip U6 and the second WIFI chip U5.

Preferably, the second processing module 230 further includes a second isolation chip U7 (model SN74LVC07A is preferred), a second data transceiver U8 (ADM 483E is preferred), an eleventh resistor R11, a twelfth resistor R12, and a thirteenth resistor R13; the 1Y pin, the 2A pin and the 3A pin of the second isolation chip U7 are connected with the 13 th pin (namely the PA3 pin), the 11 th pin (namely the PA1 pin) and the 12 th pin (namely the PA2 pin) of the second singlechip U6 one to one; the 1Y pin of the second isolation chip U7 is connected with the first power supply end of the second auxiliary source circuit 212 through an eleventh resistor R11, and the 1A pin of the second isolation chip U7 is connected with the RO pin of the second data transceiver U8; the pin 2Y of the second isolation chip U7 is connected with the second data transceiver U8Foot, DE foot and one end of twelfth resistor R12; the 3Y pin of the second isolation chip U7 is connected to the DI pin of the second data transceiver U8 and one end of the thirteenth resistor R13, and the other end of the twelfth resistor R12 is connected to the other end of the thirteenth resistor R13 and the second power supply end of the second auxiliary source circuit 212.

The power supply based on the second singlechip U6 is 3.3V, the power supply of the second data transceiver U8 is 5.5V, and the voltage levels are different; to improve stability, the two power supplies need to be separated by a second separation chip U7. The pin A and the pin B of the second data transceiver U8 are debugging and upgrading ports, and are externally connected with other devices, so that the second WIFI chip and the second singlechip are conveniently upgraded and debugged in the later period.

The contact control module 240 includes a third optocoupler OP3, a first relay K1, a second relay K2, a ninth switching tube Q9, a tenth switching tube Q10, a first diode D1, a second diode D2, a fourteenth resistor R14, and a fifteenth resistor R15; the 1 st pin (Anode pin) of the third optocoupler OP3 is connected with the third power supply end of the second auxiliary source circuit 212 through a fifteenth resistor R15, the 2 nd pin (Catode pin) of the third optocoupler OP3 is connected with one end DI+ of a switching-on/off state feedback contact of the circuit breaker, the other end DI-of the switching-on/off state feedback contact is grounded, the 3 rd pin (Emitter pin) of the third optocoupler OP3 is grounded, the 4 th pin (Collector pin) of the third optocoupler OP3 is connected with one end of a fourteenth resistor R14 and the 41 st pin of the second singlechip U6, the other end of the fourteenth resistor R14 is connected with the first power supply end of the second auxiliary source circuit 212, the 5 th pin of the first relay K1 is connected with one end NO of a switching-on coil of the circuit breaker, the 9 th pin of the first relay K1 is connected with the other end C of the switching-on coil of the circuit breaker, the 13 th pin of the first relay K1 is connected with the positive electrode of the first diode D1 and the Collector electrode of the ninth switching tube Q9, the 14 th pin of the first relay K1 is connected with the Cathode of the first diode D1 and the second power supply end of the second auxiliary source circuit 212, the base electrode of the ninth switching tube Q9 is connected with the 42 th pin of the second single chip microcomputer U6, the Emitter electrode of the ninth switching tube Q9 is grounded, the 5 th pin of the second relay K2 is connected with one end NO of the opening coil of the circuit breaker, the 9 th pin of the second relay K2 is connected with the other end C of the opening coil of the circuit breaker, the 13 th pin of the second relay K2 is connected with the Anode of the second diode D2 and the Collector electrode of the tenth switching tube Q10, the 14 th pin of the second relay K2 is connected with the Cathode of the second diode D2 and the second power supply end of the second auxiliary source circuit 212, the base electrode of the tenth switching tube Q10 is connected with the 43 th pin of the second single chip microcomputer U6, and the Emitter electrode of the tenth switching tube Q10 is grounded.

The pin definitions of the two relays are shown in fig. 6. When the second singlechip U6 receives a closing instruction sent by the control board, the 42 th pin of the second singlechip U6 outputs high level to control the conduction of Q9, the 13 th pin and the 14 th pin of the first relay K1 are conducted, the coil of the K1 is electrified, the 5 th pin and the 9 th pin of the K1 are connected and electrified, the closing coil of the circuit breaker is electrified, and the circuit breaker performs closing operation. At this time, the two ends of the switching-on and switching-off state feedback contact of the circuit breaker are connected, the third optocoupler OP3 is conducted, the 41 st pin of the second singlechip U6 receives a trigger signal, the current switching-on state can be identified, the second singlechip U6 outputs a switching-on feedback signal, and the switching-on feedback signal is sent to the control board through the second WIFI chip U5.

When the second singlechip U6 receives a brake-off instruction, the 43 rd pin outputs a high level to control the conduction of Q10, the 13 th pin and the 14 th pin of the second relay K2 are conducted, the coil is electrified, the 5 th pin and the 9 th pin of the second relay K2 are connected and electrified, the brake-off coil of the circuit breaker is electrified, and the circuit breaker performs brake-off operation. At this time, the two ends of the switching-on and switching-off state feedback contact of the circuit breaker are disconnected, the third optocoupler OP3 is disconnected, the 41 st pin of the second singlechip U6 is pulled up to be in a continuous high level by the R14, the current switching-off state can be identified, the second singlechip U6 outputs a switching-off feedback signal, and the switching-off feedback signal is sent to the control board through the second WIFI chip U5.

In the implementation, corresponding indicator lamps can be exposed through holes in the two shells, or transparent windows are arranged to display the light of the indicator lamps. The switch-on button S1 and the switch-off button S2 are arranged on the surface of the shell and are convenient to press.

With continued reference to fig. 1 to 6, the working principle of the wirelessly controlled circuit breaker opening and closing device is as follows:

powering up: the two auxiliary source circuits rectify the main voltage or the standby voltage, invert the main voltage or the standby voltage into a direct current 3.3V power supply voltage and output power. When the first singlechip U2 detects the power supply voltage, the 14 th pin is pulled up to be high level to light a second indicator light LED2 (power supply state indicator light); when the second singlechip U6 detects the power supply voltage, the 14 th pin is pulled up to be high level to light the sixth indicator light LED6 (power supply state indicator light), and the user can know that the power supply is connected at present conveniently.

Closing: when the closing button S1 is pressed, the first optocoupler OP1 is conducted, a low-level trigger signal is generated on the 39 th pin of the first singlechip U2, and the first singlechip U2 outputs a closing instruction to the first WIFI chip U1 for processing and then sends the closing instruction through the on-board antenna. The switching-on instruction is received by the on-board antenna of the second WIFI chip U5 on the drive board 20, the second WIFI chip U5 transmits the switching-on instruction to the second singlechip U6, the 42 th pin of the second singlechip outputs high-level control Q9 to be conducted, the 13 th pin and the 14 th pin of the first relay K1 are conducted, the coil of the K1 is electrified, the 5 th pin and the 9 th pin of the K1 are connected and electrified, then the switching-on coil of the circuit breaker is electrified, and the circuit breaker performs switching-on operation. At this time, the two ends of the switching-on and switching-off state feedback contact of the circuit breaker are connected, the third optocoupler OP3 is conducted, the 41 st pin of the second singlechip U6 receives a trigger signal, the current switching-on state can be identified, the second singlechip U6 outputs a switching-on feedback signal, and the switching-on feedback signal is transmitted by the on-board antenna after being processed by the second WIFI chip.

The first WIFI chip receives the closing feedback signal through the on-board antenna, processes the closing feedback signal and transmits the closing feedback signal to the first singlechip. The 15 th pin of the first singlechip outputs high level to control the conduction of Q4, and a third indicator lamp LED3 (closing indicator lamp) is lightened, so that a user can know that the circuit breaker is in a closing state currently.

And (3) opening: when the opening button S2 is pressed, the second optical coupler OP2 is conducted, a low-level trigger signal is generated on the 40 th pin of the first singlechip, and the first singlechip outputs an opening instruction to the first WIFI chip for processing and then sends the opening instruction through the on-board antenna. The switching-off instruction is received by an on-board antenna of a second WIFI chip on the driving board 20, the second WIFI chip transmits the switching-off instruction to the second singlechip, the 43 rd pin of the second singlechip outputs high level to control the conduction of Q10, the 13 th pin and the 14 th pin of the second relay K2 are conducted, the coil is electrified, the 5 th pin and the 9 th pin of the K2 are connected and electrified, the switching-off coil of the circuit breaker is electrified, and the circuit breaker performs switching-off operation. At this time, the two ends of the switching-on and switching-off state feedback contact of the circuit breaker are disconnected, the third optocoupler OP3 is disconnected, the 41 st pin of the second singlechip U6 is pulled up to be in a continuous high level by the R14, the current switching-off state can be identified, the second singlechip U6 outputs a switching-off feedback signal, and the switching-off feedback signal is transmitted by the on-board antenna after being processed by the second WIFI chip.

The first WIFI chip receives the switching-off feedback signal through the on-board antenna, processes the switching-off feedback signal and transmits the switching-off feedback signal to the first singlechip. The 16 th pin of the first singlechip outputs high level to control the conduction of Q5, and the fourth indicator light LED4 (brake-off indicator light) is lightened, so that a user can know that the circuit breaker is in a brake-off state currently.

If the closing button and the opening button are pressed simultaneously, the opening button is executed preferentially. In order to facilitate real-time understanding of the current working state of the circuit breaker, a feedback detection time interval of 1 second is set, namely the 41 st pin of the second singlechip detects the on-off state of an on-off state feedback contact of the circuit breaker every 1 second, and a corresponding feedback signal is output. When the breaker fails, if the closing button S1 5 is pressed, the driving board sends a switching-off feedback signal, the fourth indicator light LED4 (switching-off indicator light) is turned on, the third indicator light LED3 (switching-on indicator light) is turned off, and a user can find out a problem in time to repair the breaker.

In summary, the wireless-control circuit breaker opening and closing device provided by the utility model adopts wireless WIFI communication to remotely control the opening and closing of the circuit breaker, and compared with wired control, the wireless-control circuit breaker opening and closing device has the advantages that the cable cost is saved, and the difficulty of wire laying construction is reduced; the switching-on and switching-off operation is not needed to be manually operated, so that the manpower and the engineering quantity are greatly saved, and the safety guarantee for operators is improved.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The circuit breaker opening and closing device is connected with a circuit breaker and is characterized by comprising a first shell and a second shell, wherein a control board is arranged in the first shell, a driving board is arranged in the second shell, the control board is in wireless connection with the driving board, and the driving board is connected with the circuit breaker;

2. The wireless control circuit breaker opening and closing device according to claim 1, wherein a first power supply module, a first communication module, a first processing module and a button module are arranged on the control board; the first power supply module is connected with the first communication module, the first processing module and the button module; the first processing module is connected with the first communication module and the button module;

3. The wireless control circuit breaker opening and closing device according to claim 2, wherein the first communication module comprises a first WIFI chip, the 1 st pin and the 25 th pin of the first WIFI chip are both connected to a first power supply end of the first auxiliary source circuit, and the 3 rd pin and the 24 th pin of the first WIFI chip are grounded; and the 8 th pin, the 9 th pin and the 41 st pin of the first WIFI chip are all connected with the first processing module.

4. The wirelessly controlled circuit breaker opening and closing device of claim 3, wherein the first communication module further comprises a first switching tube, a second switching tube, a first indicator light, and a first resistor; the base of the first switching tube is connected with the 28 th pin of the first WIFI chip, the collector of the first switching tube is connected with the collector of the second switching tube and the negative electrode of the first indicator lamp, the emitter of the first switching tube is connected with the emitter of the second switching tube and the ground, the base of the second switching tube is connected with the 29 th pin of the first WIFI chip, and the positive electrode of the first indicator lamp is connected with the second power supply end through the first resistor.

5. The wireless control circuit breaker opening and closing device according to claim 3, wherein the first processing module comprises a first single chip microcomputer, a third switching tube, a fourth switching tube, a fifth switching tube, a second indicator light, a third indicator light, a fourth indicator light and a second resistor;

6. The wirelessly controlled circuit breaker opening and closing device of claim 5, wherein the first processing module further comprises a first isolation chip, a first data transceiver, a third resistor, a fourth resistor, and a fifth resistor;

the 1Y pin, the 2A pin and the 3A pin of the first isolation chip are connected with the 13 th pin, the 11 th pin and the 12 th pin of the first singlechip one to one; the 1Y pin of the first isolation chip is connected with the first power supply end through a third resistor, and the 1A pin of the first isolation chip is connected with the RO pin of the first data transceiver; the 2Y pin of the first isolation chip is connected with the RE pin, the DE pin and one end of the fourth resistor of the first data transceiver; the 3Y pin of the first isolation chip is connected with the DI pin of the first data transceiver and one end of the fifth resistor, and the other end of the fourth resistor is connected with the other end of the fifth resistor and the second power supply end.

7. The wirelessly controlled circuit breaker opening and closing device of claim 5, wherein the button module comprises a closing button, an opening button, a first optocoupler, a second optocoupler, a sixth resistor, a seventh resistor, and an eighth resistor;

8. The wireless control circuit breaker opening and closing device according to claim 2, wherein a second power supply module, a second communication module, a second processing module and a contact control module are arranged on the driving board; the second power supply module is connected with the second communication module, the second processing module and the contact control module; the second processing module is connected with the contact control module and the circuit breaker;

9. The wirelessly controlled circuit breaker opening and closing device of claim 8, wherein the second processing module comprises a second single-chip microcomputer, an eighth switching tube, a sixth indicator light and a tenth resistor;

10. The wirelessly controlled circuit breaker opening and closing device of claim 9, wherein the contact control module comprises a third optocoupler, a first relay, a second relay, a ninth switching tube, a tenth switching tube, a first diode, a second diode, a fourteenth resistor, and a fifteenth resistor;