One-key sequential control controller

Abstract

The utility model provides a one-key sequential control controller. The one-key sequential control controller comprises a shell and a control circuit board, the shell comprises an upper shell body and a lower shell body, screw openings of the fixing screws are arranged on the front face of the upper shell body and the bottom face of the lower shell body, and the upper shell body and the lower shell body are fixed together through the screws. And the control circuit board is arranged in the shell and is used for operating and controlling the circuit breaker, the handcart and the grounding switch. The device has a local operation mode and a remote operation mode, and can automatically complete the operation of the circuit breaker, the handcart and the grounding knife switch according to an input instruction; meanwhile, the switch operation of the switch cabinet is controlled to be in the working state required by the input instruction, such as operation, hot standby, cold standby and maintenance.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of electrical equipment, and concretely relates to a one-key sequence control controller. BACKGROUND

[0002] At present, the known high-voltage switch device circuit breaker, trolley and ground knife controller is assembled by a panel, an in-cabinet or cabinet-face mounting shell and a control circuit board. The controller is installed on the switch device and connected with the circuit breaker, trolley and ground knife, and thus the operator can realize the control and protection of the circuit breaker, trolley and ground knife on the switch cabinet through the panel or remote operation instruction.

[0003] However, for the old switch device, even if the intelligent type with electric controller is purchased, because the control device needs to obtain many contact point signals on the switch device, it is impossible to perform wiring reconstruction on the narrow safety wiring space of the certain high-voltage switch device which has been put into operation and assembled into a column under the condition of short-time power failure and reliability. The control and feedback signals of the circuit breaker, trolley and ground knife are many, and many parameters need to be started, initially set and adjusted in real time during operation. The traditional separate control mode is troublesome in parameter setting, and affects the starting and operation efficiency of the device. CONTENT OF THE UTILITY MODEL

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model aims to provide a one-key sequence control controller to realize the integrated control of the circuit breaker, trolley and ground knife of the switch device. The utility model adopts the following specific technical scheme:

[0005] The utility model provides a one-key sequence control controller, which comprises a shell and a control circuit board.

[0006] The shell comprises an upper shell and a lower shell, and the screw holes of fixing screws are arranged on the front surface of the upper shell and the bottom surface of the lower shell, and the upper shell and the lower shell are fixed together through the screws.

[0007] The control circuit board is arranged in the shell and used for operating and controlling the circuit breaker, trolley and ground knife.

[0008] Further, the top of the shell is provided with an RS485 communication interface opening and a power supply and fault output interface opening, and the bottom is provided with a control and interlocking interface opening.

[0009] One end of the RS485 communication interface is electrically connected with the control circuit board, and the other end is plugged with a signal plug. One end of the power supply and fault output interface is electrically connected with the control circuit board, and the other end is plugged with the plug of a power supply. One end of the control and interlocking interface is electrically connected with the control circuit board, and the other end is plugged with the plug of a heavy load socket.

[0010] Further, the control circuit board is provided with control buttons and indicator lights for performing control operations and displaying working states.

[0011] Further, the upper shell is provided with control button openings and indicator light openings corresponding to the control buttons and indicator lights.

[0012] Further, the upper shell is provided with control button openings and indicator light openings corresponding to the control buttons and indicator lights.

[0013] Further, the control circuit board is integrated with a control circuit, comprising:

[0014] The motor control circuit is used for controlling the operation of the handcart, the circuit breaker control circuit is used for controlling the closing and opening of the circuit breaker, the grounding switch control circuit is used for controlling the closing and opening of the grounding switch, and the detection circuit is used for detecting the working state and outputting a state signal to the MCU to determine the current working state and control the operation of the controller.

[0015] Further, the AC-DC power supply of the controller has three DC current outputs, which are 3.3V voltage, first 5V voltage, 10V voltage and second 5V voltage after voltage reduction.

[0016] The 3.3V voltage is used for powering the MCU and the state detection circuit, the first 5V voltage is used for powering the 485 communication circuit, the 10V voltage is used for powering the motor drive control circuit, and the second 5V voltage is used for powering the detection circuit of the AC input voltage.

[0017] Preferably, the control buttons comprise opening buttons and closing buttons for realizing the closing and opening of the circuit breaker and the grounding switch.

[0018] Preferably, the control buttons further comprise in-out buttons for realizing the in-out of the handcart.

[0019] Preferably, the control buttons further comprise a reset button for: when there is no fault and the handcart or grounding switch motor is running, braking the corresponding motor, then rotating in the reverse direction for a set time and stopping; and when there is a fault, clearing the fault.

[0020] The utility model has the beneficial effects that:

[0021] The utility model has two operation modes of on-site and remote, can automatically complete the operation of the circuit breaker, handcart and grounding switch according to the input instruction, and simultaneously controls the switch operation of the switch cabinet to the working state required by the input instruction, for example, running, hot standby, cold standby and maintenance. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall embodiment of this application.

[0023] Figure 2 This is an exploded view of the shell of an embodiment of this application.

[0024] Figure 3 This is an exploded view of three circuit boards in an embodiment of this application.

[0025] Figure 4 This is a functional block diagram of the panel circuit in an embodiment of this application.

[0026] Figure 5 This is a functional block diagram of the power supply and control circuit of an embodiment of this application.

[0027] Figure 6 This is a functional block diagram of the motor drive circuit in an embodiment of this application. Detailed Implementation

[0028] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0030] like Figures 1-6 As shown, this application provides a one-button sequential control controller 1 (hereinafter referred to as the controller) for operating control of circuit breakers, handcarts, and grounding switches (not shown). It includes a housing 10, and a control circuit board arranged in the housing: a panel circuit board 20a, a power supply and control circuit board 20b, and a motor drive circuit board 20c, a plurality of control buttons 30 and a plurality of indicator lights 40 electrically connected to the panel circuit board 20a, and a set of RS485 communication interfaces 50, power supply and fault output interfaces 60, and a set of control and interlocking interfaces 70 electrically connected to the motor drive circuit board 20c.

[0031] like Figure 2 As shown, the housing 10 has openings for installing control buttons, indicator lights, and interfaces, specifically: control button opening 11, indicator light opening 12, RS485 communication, power and fault output interface opening 13, control and interlock interface opening 14, and fixing screw thread 15.

[0032] Further, the shell 10 comprises an upper shell 10a and a lower shell 10b, which are fixed together by screws. The screw sockets 15 are arranged on the front surface of the upper shell 10a and the bottom surface of the lower shell 10b, facilitating the fixation of the upper shell 10a and the lower shell 10b together by screws (not shown). Both the upper shell 10a and the lower shell 10b can be made of plastic by injection molding.

[0033] Preferably, the control button openings 11 and the indicator light openings 12 are arranged on the front surface of the upper shell 10a, the RS485 communication interface, power supply and fault output interface openings 13 are arranged on the top of the upper shell 10a, and the one-key sequence control and interlocking interface openings 14 are arranged on the bottom of the upper shell 10a. Such an arrangement makes the structure of the one-key sequence controller 1 simple and reasonable, and facilitates operation.

[0034] Further, the indication marks corresponding to the control buttons 30 and the indicator lights 40 are directly arranged on the front surface of the upper shell 10a, facilitating operation; the indication marks corresponding to the RS485 communication interface 50, the power supply and fault output interface 60 are directly arranged on the top of the lower shell 10b, and the indication marks corresponding to the control and interlocking interface 70 are directly arranged on the bottom of the lower shell 10b, facilitating wiring.

[0035] As shown in Figure 3 The panel circuit board 20a, the power supply and control circuit board 20b and the motor drive circuit board 20c are connected by pin headers (not shown) and fixed by metal posts (not shown).

[0036] One end of the RS485 communication interface 50 is electrically connected to the motor drive circuit board 20c, and the other end is plugged with an RS485 signal plug (not shown). One end of the power supply and fault output interface 60 is electrically connected to the motor drive circuit board 20c, and the other end is plugged with a plug (not shown) of a power supply. One end of the control and interlocking interface 70 is electrically connected to the motor drive circuit board 20c, and the other end is plugged with a plug (not shown) of a heavy load socket (not shown).

[0037] Further, the heavy load socket is installed on the door of a switch cabinet, and integrates the control and feedback signal contacts of the circuit breakers, hand carts and ground knives of the switch cabinet. Therefore, the operator can operate the circuit breakers, hand carts and ground knives of the switch cabinet through the corresponding control buttons 30, and obtain the working states of the circuit breakers, hand carts and ground knives of the switch cabinet through the states of the corresponding indicator lights 40.

[0038] Further, the controller can locally complete the operation control function of the circuit breaker, trolley and grounding switch through the control button. Among them: the motor control circuit mainly controls the operation of the trolley, the circuit breaker control circuit mainly controls the closing and opening of the circuit breaker, and the grounding switch control circuit mainly controls the closing and opening of the grounding switch. Various operation state detection circuits are mainly used to detect the working state of the equipment and output state signals to the MCU to determine the current working state and control the operation of the equipment.

[0039] As shown in Figure 4 The panel circuit board is the core part of the controller interacting with the operator, and the main functions include:

[0040] Control button interface: connected with the control button 30, realizing the input of operation instruction of the circuit breaker, trolley and grounding switch. For example, closing button, opening button, in button, out button and reset button, etc.

[0041] Indicator light interface: connected with the indicator light 40, used for displaying the running state of the equipment, such as the closing state of the circuit breaker, the position state of the trolley, the grounding switch state, fault indication, etc.

[0042] Communication interface: may include the connection interface with the motor drive circuit board 20c, used for transmitting control signals and state feedback signals.

[0043] Power supply interface: provides power supply for electronic components on the panel circuit board, which may include DC power supply obtained from the power supply and control circuit board 20b.

[0044] Functional logic: the panel circuit board may integrate a simple logic circuit or a microcontroller unit (MCU) for processing button input signals and controlling the display of indicator lights according to the state of the equipment.

[0045] Figure 5 shows the functional principle of the power supply and control circuit board 20b. The circuit board is mainly responsible for providing stable power supply for the entire controller and managing the running state of the controller. Its functions include:

[0046] AC-DC power conversion: converts the input AC power supply into multiple DC power supplies, including:

[0047] 3.3V voltage: used for powering the MCU and state detection circuit; first 5V voltage: used for powering the 485 communication circuit; 10V voltage: used for powering the motor drive control circuit; second 5V voltage: used for powering the detection circuit of AC input voltage.

[0048] Power management: may include power distribution, voltage stabilization, filtering and other functions to ensure the stable operation of each part of the circuit.

[0049] Fault detection and protection: Detect power status and implement overvoltage, undervoltage, overcurrent protection, etc. Send fault signals to external devices through fault output interface 60.

[0050] Interface connection: Provide power input interface and power and fault output interface 60 for connecting external power and fault indication devices.

[0051] Control logic: Contains control logic for managing power startup, self-check and standby state.

[0052] Further, the AC-DC power supply of the controller outputs three DC currents, which are respectively converted into 3.3V voltage (MCU_3V3), first 5V voltage (ISO_5V), 10V voltage (VCC4_10V and VDD2), and second 5V voltage (VCC4_10V) after LDO voltage reduction. Among them: 3.3V voltage (MCU_3V3) is provided for MCU and state detection circuit power supply; First 5V voltage (ISO_5V) is provided for 485 communication circuit power supply; 10V voltage (VCC4_10V and VDD2) is provided for motor drive control circuit; Second 5V voltage (VCC4_10V) is provided for AC input voltage detection circuit.

[0053] After the AC-DC power supply is started, the MCU is powered on and the self-check function is started. After self-checking is completed, it is in standby state. One-key sequence controller can remotely complete the operation control function of circuit breaker, trolley and grounding switch through 485 communication function.

[0054] Figure 6 shows the functional principle of the motor drive circuit board 20c. The circuit board is mainly responsible for driving the trolley motor, circuit breaker motor and ground knife motor, and realizing accurate control of the motor. Its functions include:

[0055] Motor control interface: Connects with trolley motor, circuit breaker motor and ground knife motor, and provides driving signal and power supply.

[0056] Control signal input: Receives control signals from panel circuit board 20a or external control signals, and realizes start, stop, forward and reverse operation of the motor.

[0057] State feedback: Detects the running state of the motor (such as position, speed, fault, etc.), and sends feedback signals to the control circuit board 20b or the panel circuit board 20a.

[0058] Drive circuit: Contains motor drive chip or module, used to amplify control signal and drive motor to run.

[0059] Protection function: Realize overcurrent, overheat, locked rotor protection function, prevent motor damage.

[0060] Communication interface: data communication with external devices through RS485 communication interface 50, realizing remote control and state monitoring.

[0061] Interlocking function: through control and interlocking interface 70, realize electrical interlocking with other devices (such as circuit breaker, handcart and ground knife), ensure the safe operation of the device.

[0062] The embodiments of the application have the following functions:

[0063] (1) Handcart reset function:

[0064] In the case of no fault of the one-key sequence control device, and the handcart motor is running, short press the reset button, the handcart motor brakes, and then rotates in the opposite direction for a certain time and stops (the time can be configured). When the controller fails, the handcart fault indicator light is on, and the fault can be cleared by short pressing the reset button.

[0065] (2) Ground knife reset function:

[0066] In the case of no fault of the one-key sequence control device, and the ground knife motor is running, short press the reset button, the ground knife motor brakes, and then rotates in the opposite direction for a certain time and stops (the time can be configured). When the controller fails, the ground knife fault indicator light is on, and the fault can be cleared by short pressing the reset button.

[0067] (3) Circuit breaker closing function:

[0068] The energy storage is completed (the energy storage light is on), the circuit breaker is in the open position, the ground knife is in the open position, short press the closing button on the panel, the closing relay is closed, until the closing position indicator light is on (the open position terminal is shorted), and the closing relay is opened.

[0069] (4) Circuit breaker opening function:

[0070] The circuit breaker is in the closed position, short press the opening button on the panel, the opening relay is closed, until the opening position indicator light is on (the opening position terminal is shorted), and the opening relay is opened.

[0071] (5) Handcart rocking in function:

[0072] The handcart ready light is on, the remote indicator light is off (the local / remote terminal is disconnected), the circuit breaker is not in the closed position, the handcart is in the test position, the test position indicator light is on, short press the rocking in button on the panel, the handcart motor starts, until the working position indicator light is on (the working position terminal is shorted), the handcart motor brakes, and then rotates in the opposite direction for a certain time and stops (the time can be configured).

[0073] (6) Handcart rocking out function:

[0074] The handcart ready light is on, the remote indication light is off (local / remote terminals are disconnected), the circuit breaker is not in the closed position, the handcart is in the working position or the intermediate position, and the test position indication light is off. Press the pull-out button on the panel for a short time, the handcart motor starts, until the test position indication light is on (the test position terminal is short-circuited), the handcart motor brakes, and then rotates in the reverse direction for a certain time and stops (the time can be configured).

[0075] (7) Ground knife closing function:

[0076] The ground knife ready light is on, the remote indication light is off (local / remote terminals are disconnected), the circuit breaker is not in the closed position, the ground knife is in the open position, and the closed position indication light is off. Press the closing button on the panel for a short time, the ground knife motor starts, until the closed position indication light is on (the closed position terminal is short-circuited), the ground knife motor brakes, and then rotates in the reverse direction for a certain time and stops (the time can be configured).

[0077] (8) Ground knife opening function:

[0078] The ground knife ready light is on, the remote indication light is off (local / remote terminals are disconnected), the circuit breaker is not in the closed position, the ground knife is in the closed position, and the open position indication light is off. Press the opening button on the panel for a short time, the ground knife motor starts, until the open position indication light is on (the open position terminal is short-circuited), the ground knife motor brakes, and then rotates in the reverse direction for a certain time and stops (the time can be configured).

[0079] Although the utility model is specifically shown and introduced in combination with the preferred embodiments, it should be understood by those skilled in the art that various changes can be made to the utility model in form and details without departing from the spirit and scope of the utility model defined in the appended claims, and all the changes are within the protection scope of the utility model.

Claims

1. A one-touch control controller, characterized by, The utility model relates to a circuit breaker control device, including shell and control circuit board; The shell includes upper shell and lower shell, and fixing screws are arranged on the front surface of the upper shell and the bottom surface of the lower shell, the upper shell and the lower shell are fixed together through the fixing screws; The control circuit board is arranged in the shell and is used for operating control on the circuit breaker, the handcart and the ground knife.

2. The one-key sequence controller according to claim 1, characterized in that, The top of the shell is provided with an RS485 communication interface opening and a power supply and fault output interface opening, and the bottom is provided with a control and interlocking interface opening; One end of the RS485 communication interface is electrically connected with the control circuit board, and the other end is plugged with a signal plug; One end of the power supply and fault output interface is electrically connected with the control circuit board, and the other end is plugged with a plug of a power supply; One end of the control and interlocking interface is electrically connected with the control circuit board, and the other end is plugged with a plug of a heavy load socket.

3. The one-key sequence controller according to claim 1, wherein, The control circuit board is provided with control buttons and indicator lights, which are used for performing control operation and displaying working state.

4. The one-key sequence controller according to claim 3, characterized in that, The front surface of the upper shell is provided with control button openings and indicator light openings, and the openings correspond to the control buttons and the indicator lights.

5. The one-key sequence controller according to claim 1, wherein, The front surface of the upper shell is provided with indication marks corresponding to the indicator lights and the control buttons, the top of the lower shell is provided with indication marks corresponding to the RS485 communication interface, the power supply and fault output interface, and the bottom of the lower shell is provided with indication marks corresponding to the control and interlocking interface.

6. The one-key sequence controller according to claim 1, wherein, The control circuit board is integrated with a control circuit, including: A motor control circuit is used for controlling the operation of the handcart; A circuit breaker control circuit is used for controlling the closing and opening of the circuit breaker; A grounding switch control circuit is used for controlling the closing and opening of the grounding switch; A detection circuit is used for detecting the working state and outputting a state signal to the MCU to determine the current working state and control the operation of the controller.

7. The one-key sequence controller according to claim 6, wherein, The AC-DC power supply of the controller has three-way direct current output, and after voltage reduction, 3.3V voltage, first 5V voltage, 10V voltage and second 5V voltage are obtained respectively; The 3.3V voltage is used for power supply of the MCU and the state detection circuit; The first 5V voltage is used for power supply of the 485 communication circuit; The 10V voltage is used for power supply of the motor drive control circuit; The second 5V voltage is used for power supply of the detection circuit of the alternating current input voltage.

8. The one-key sequence controller according to claim 3, wherein, The control buttons include opening buttons and closing buttons, which are used for realizing the closing and opening of the circuit breaker and the ground knife.

9. The one-key sequence controller according to claim 8, wherein, The control buttons also include a button and a button, which are used for realizing the in and out of the handcart.

10. The one-key sequence controller according to claim 8 or 9, characterized in that, The control buttons also include a reset button, which is used for: when there is no fault and the handcart or the ground knife motor is running, braking the corresponding motor, then rotating in the opposite direction for a set time and stopping; when there is a fault, clearing the fault.

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