阅读说明：本技术 智能空开控制器 (Intelligent air switch controller ) 是由 费战波 任家顺 常鹏 于 2021-06-18 设计创作，主要内容包括：本发明提供一种外接在传统式空气开关出线端的空气开关控制器,不改变原有空气开关的结构及原有控电柜的布局布线,可直接安装到被控空气开关的出线端子,且内置调节机构,可匹配不同厂家的空气开关；内置电机螺杆装置及其驱动电路,可推动外部机械结构以控制空气开关手柄动作,实现控制空气开关分合闸的目的；具备无极性两线制携能通信总线,可同时完成数据通信和设备供电功能内置电流互感器及其采样电路,可对所接负载线路上的电流大小进行检测；内置热敏电阻及其采样电路,可对空气开关出线端子即所接负载线路进行温度检测。(The invention provides an air switch controller externally connected to a lead-out terminal of a conventional air switch, which can be directly installed to the lead-out terminal of a controlled air switch without changing the structure of the original air switch and the layout and wiring of the original electricity control cabinet, is internally provided with an adjusting mechanism and can be matched with air switches of different manufacturers; the built-in motor screw device and the driving circuit thereof can push an external mechanical structure to control the action of the air switch handle, thereby realizing the purpose of controlling the opening and closing of the air switch; the current transformer and the sampling circuit thereof are arranged in the non-polar two-wire system energy-carrying communication bus, can simultaneously complete data communication and equipment power supply functions, and can detect the current on a connected load line; the built-in thermistor and the sampling circuit thereof can detect the temperature of the outlet terminal of the air switch, namely the connected load circuit.)

1. Empty controller that opens of intelligence contains the main casing body, removes slip table, push rod, bus interface, PCB circuit board, apron, ST3 set screw, adjusting screw, reduction gears, lead screw, polished rod, temperature sensor, fixed pole piece, M3 set screw, mutual-inductor, position sensor, characterized by:

the intelligent air switch controller is fixed below the intelligent air switch controller through an outlet terminal of the controlled air switch;

the width of the intelligent air switch controller does not exceed the width of the controlled air switch;

the movable sliding table is in threaded connection with the screw rod and is used for transmitting thrust,

the movable sliding table is connected with the polished rod through a via hole and used for guiding;

the screw rod and the polish rod are connected with the speed reducing mechanism through screws;

the push rod can move up and down by matching with the adjusting screw and is used for adapting to the handle heights of air switches of different manufacturers;

the push rod and the movable sliding table are matched and connected through a square hole formed in the push rod and fixed through an adjusting screw, and the push rod and the movable sliding table are used for transmitting thrust;

one end of the push rod is of a bent structure, the rear arm of the bent structure is in contact with the idle opening handle to execute a closing action, and the front arm of the bent structure is in contact with the idle opening handle to execute a switching-off action;

the middle part of the push rod is of a special-shaped structure, so that manual fixing of load wiring at the lower end of the air switch is facilitated;

the fixed pole piece can move up and down through an M3 fixing screw and is used for adapting the positions of different open wiring terminals, and the fixed pole piece and the load lead are fixed on the wiring terminals of the controlled air switch together;

an L-shaped sliding rail is arranged at the position where the main shell and the fixed pole piece are assembled, so that the precision of the moving position of the fixed pole piece can be realized, and the force bearing can be provided;

one end of the fixed pole piece is provided with a bent bulge which penetrates through the main shell and is used for fixing the temperature sensor and providing a heat source for the temperature sensor;

the bus interface is a non-polar two-wire system energy-carrying communication bus interface, and power supply and communication are simultaneously completed through the interface; the bus uses two wires, does not distinguish polarity, can be connected in a positive and negative way, the direct current voltage of a bus interface after being rectified by a rectifier bridge is directly supplied to a motor for driving, the driving current reaching at least 200mA of a single node can be provided under the strong power supply mode of a host, the power supply intensity can also be adjusted for communication, and the direct current voltage outputs the working voltage of a main MCU and other functional circuits through a voltage stabilizing chip.

2. The intelligent air switch controller of claim 1, wherein: the mutual inductor and the main shell are fixed by positioning ribs of the main shell;

the speed reducing mechanism and the main shell are fixed by positioning ribs and screws of the main shell;

the PCB is fixed by screws through the positioning column and the cover plate of the main shell;

the bus interface is welded on the PCB circuit board.

3. The intelligent air switch controller of claim 1, wherein: and the PCB is provided with a position sensor which is used for detecting the accurate position of the push rod.

4. The intelligent air switch controller of claim 1, wherein: the built-in mutual inductor can detect the current of a load line, and the temperature sensor can detect the temperature of the outlet terminal.

Technical Field

The invention relates to the field of intelligent control, in particular to an intelligent air switch controller for remotely controlling an air switch.

Background

An air switch, also known as an air circuit breaker, is a circuit breaker, can be automatically disconnected as long as the current in a circuit exceeds the rated current, is a very important electric appliance in a low-voltage distribution network and an electric power dragging system, and integrates control and multiple protection functions. For a traditional air switch, the switching-on and the switching-off of the air switch both need manual operation. For example, when the circuit is overhauled or the equipment in the circuit stops working, a manual operating rod for controlling tripping and closing of the air switch needs to be manually turned in a short distance, so that the air switch completes the opening action; when the maintenance is finished or a certain path of electric equipment in the circuit needs to be started, the manual operating rod needs to be manually turned in a short distance again, and then the air switch can complete the switching-on action.

The traditional air switch has the following disadvantages: (1) the closing needs to be completed by manually stirring the handle on site, so that the response time delay of personnel to the site exists, and great inconvenience is brought to the overhauling occasions and the unmanned and few-person control occasions; (2) the operation of the traditional air switch requires that workers have a certain basic electric power knowledge base, and the environment of the power control cabinet generates hidden danger on the safety of general workers; (3) the opening of the traditional air switch is automatic after the opening condition is met, and certain economic loss can be caused by sudden power failure in a production plant area with higher power protection requirement.

In order to solve the above drawback problem of traditional air switch, intelligent air switch controller has appeared in the market, and current intelligent air switch controller has following problem: (1) most of air switch controllers need to be installed after the original air switches are dismantled, the air switch controllers belong to replacement type installation, the cost is high, in order to achieve the automatic opening and closing function, a transmission control mechanism is complex, the width needs to be increased, 1P is at least widened to 2P, the original air switches need to be replaced, and the original layout of the air switch is changed; (2) the air switch controller is additionally arranged on an original air switch, but the width needs to be increased, the original wiring of an electricity control cabinet is changed, the installation is complicated, and the additionally arranged air switch controller only has an automatic brake opening function and does not have an automatic brake closing function; (3) the air switch controller generally has a data communication function, and the existing air switch with control on the market needs larger current to drive the motor for control, so that extra power is needed for communication power consumption. The power supply method can be divided into two types of direct power supply from a line and external power supply. The power supply conversion part inevitably exists, so that the whole structure is large and the circuit consumption is high; the plus power supply has then increased two power supply lines outside communication connection, and 4 line orders can not be chaotic, has increased the volume of walking the line on the one hand, and on the other hand has increased the wiring degree of difficulty.

Disclosure of Invention

The invention provides an air switch controller externally connected to a lead-out terminal of a conventional air switch, which can be directly installed to the lead-out terminal of a controlled air switch without changing the structure of the original air switch, is internally provided with an adjusting mechanism and can be matched with air switches of different manufacturers; the built-in motor screw device and the driving circuit thereof can push an external mechanical structure to control the action of the air switch handle, thereby realizing the purpose of controlling the opening and closing of the air switch; the current transformer and the sampling circuit thereof are arranged in the non-polar two-wire system energy-carrying communication bus, can simultaneously complete data communication and equipment power supply functions, and can detect the current on a connected load line; the built-in thermistor and the sampling circuit thereof can detect the temperature of the outlet terminal of the air switch, namely the connected load circuit.

In order to achieve the above object, the technical solution of the present invention is as follows:

empty controller that opens of intelligence contains the main casing body, removes slip table, push rod, bus interface, PCB circuit board, apron, ST3 set screw, adjusting screw, reduction gears, lead screw, polished rod, temperature sensor, fixed pole piece, M3 set screw, mutual-inductor, position sensor, characterized by:

the intelligent air switch controller is fixed below the intelligent air switch controller through an outlet terminal of the controlled air switch;

the width of the intelligent air switch controller does not exceed the width of the controlled air switch;

the movable sliding table is in threaded connection with the screw rod and is used for transmitting thrust,

the movable sliding table is connected with the polished rod through a via hole and used for guiding;

the screw rod and the polish rod are connected with the speed reducing mechanism through screws;

the push rod can move up and down by matching with the adjusting screw and is used for adapting to the handle heights of air switches of different manufacturers;

the push rod and the movable sliding table are matched and connected through a square hole formed in the push rod and fixed through an adjusting screw, and the push rod and the movable sliding table are used for transmitting thrust;

one end of the push rod is of a bent structure, the rear arm of the bent structure is in contact with the idle opening handle to execute a closing action, and the front arm of the bent structure is in contact with the idle opening handle to execute a switching-off action;

the middle part of the push rod is of a special-shaped structure, so that manual fixing of load wiring at the lower end of the air switch is facilitated;

the fixed pole piece can move up and down through an M3 fixing screw and is used for adapting the positions of different open wiring terminals, and the fixed pole piece and the load lead are fixed on the wiring terminals of the controlled air switch together;

an L-shaped sliding rail is arranged at the position where the main shell and the fixed pole piece are assembled, so that the precision of the moving position of the fixed pole piece can be realized, and the force bearing can be provided;

one end of the fixed pole piece is provided with a bent bulge which penetrates through the main shell and is used for fixing the temperature sensor and providing a heat source for the temperature sensor;

the mutual inductor and the main shell are fixed by positioning ribs of the main shell, and the mutual inductor can detect the current of a load circuit;

the speed reducing mechanism and the main shell are fixed by positioning ribs and screws of the main shell;

the PCB is provided with a position sensor which is used for detecting the accurate position of the push rod;

the PCB is fixed by screws through the positioning column and the cover plate of the main shell;

the built-in mutual inductor can detect the current of a load line, and the temperature sensor can detect the temperature of an outlet terminal;

the bus interface is welded on the PCB circuit board;

the bus interface is a non-polar two-wire system energy carrying communication bus interface, and power supply and communication are simultaneously completed through the interface; the bus uses two wires, does not distinguish polarity, can be connected in a positive and negative way, the direct current voltage of a bus interface after being rectified by a rectifier bridge is directly supplied to a motor for driving, the driving current reaching at least 200mA of a single node can be provided under the strong power supply mode of a host, the power supply intensity can also be adjusted for communication, and the direct current voltage outputs the working voltage of a main MCU and other functional circuits through a voltage stabilizing chip.

The invention has the beneficial effects that:

(1) the intelligent air switch controller can remotely realize the opening and closing of the air switch, does not change the structure of the original air switch and the layout and wiring of the original electricity control cabinet, does not need to dismantle or replace the original air switch, can be directly installed on the outlet terminal of the controlled air switch, is internally provided with an adjusting mechanism, and can be matched with the air switches of different manufacturers.

(2) The intelligent air switch controller adopts a non-polar two-wire system energy-carrying communication bus interface to simultaneously complete power supply and communication, and has the main advantages that: compared with the standard M-Bus single node which only supplies power about 2mA, the Bus single node has the power supply capacity of more than 200mA, can directly drive the built-in motor, has simple and reliable circuit and smaller integral structure, and saves the installation space; compared with the conventional mode of adding power supply wires to the communication wires, the bus has the advantages of less wiring amount, no distinction of polarity and wire sequence and convenient wiring.

(3) The intelligent air switch controller can realize remote control by matching with the gateway, and is safe and convenient to operate; and a gateway is arranged in one electricity control cabinet, and the gateway avoids wireless channel signal competition by a pair of a plurality of intelligent air switch controllers through the bus.

(4) The intelligent air switch controller has the advantages that the current and temperature detection is realized, the related information is transmitted through communication, the state of a connected load line can be monitored in real time, the alarm can be given in advance once data abnormity occurs, the time is strived for troubleshooting before the air switch is automatically opened, and the economic loss caused by direct power failure is avoided.

Drawings

Fig. 1 is a schematic structural diagram of an intelligent air switch controller according to the invention.

Fig. 2 is a schematic block diagram of bus power supply and communication of the intelligent air switch controller of the present invention.

Fig. 3 is a schematic structural diagram of an installation state of the intelligent air switch controller of the invention.

Fig. 4 is a schematic diagram of an initial state structure of the intelligent air switch controller of the invention.

Fig. 5 is a schematic diagram of a switching-on state structure of the intelligent air switch controller.

FIG. 6 is a schematic structural diagram of the switching-off state of the intelligent air switch controller of the present invention.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to the following description of the embodiments and the accompanying drawings.

As shown in figure 1: an intelligent air switch controller comprises a main shell (1), a movable sliding table (2), a push rod (3), a bus interface (4), a PCB circuit board (5), a cover plate (6), ST3 fixing screws (7), adjusting screws (8), a speed reducing mechanism (9), a lead screw (10), a polished rod (11), a temperature sensor (12), a fixed pole piece (13), an M3 fixing screw (14), a mutual inductor (15) and a position sensor (16), wherein,

the movable sliding table is in threaded connection with the screw rod and is used for transmitting thrust,

the movable sliding table is connected with the polished rod through a via hole and used for guiding;

the screw rod and the polish rod are connected with the speed reducing mechanism through screws;

the push rod can move up and down by matching with the adjusting screw and is used for adapting to the handle heights of air switches of different manufacturers;

the push rod and the movable sliding table are matched and connected through a square hole formed in the push rod and fixed through an adjusting screw, and the push rod and the movable sliding table are used for transmitting thrust;

one end of the push rod is of a bent structure, the rear arm of the bent structure is in contact with the idle opening handle to execute a closing action, and the front arm of the bent structure is in contact with the idle opening handle to execute a switching-off action; when the front arm and the rear arm of the bending structure are at initial positions (the front arm and the rear arm of the bending structure are not in contact with the handle of the controlled air switch in the opening and closing states) the front arm and the rear arm of the bending structure are convenient for manual opening and closing operations. The characteristics of the bending structure: the bearing effect is better than other structures.

The middle part of the push rod is of a special-shaped structure, so that the load wiring at the lower end of the air switch can be conveniently fixed manually;

the fixed pole piece can move up and down through an M3 fixing screw and is used for adapting the positions of different open wiring terminals, and the fixed pole piece and the load lead are fixed on the wiring terminals of the controlled air switch together;

an L-shaped sliding rail is arranged at the position where the main shell and the fixed pole piece are assembled, so that the precision of the moving position of the fixed pole piece can be realized, and the force bearing can be provided;

one end of the fixed pole piece is provided with a bent bulge, penetrates through the main shell body and is used for fixing the temperature sensor, provides a heat source for the temperature sensor and is mainly used for detecting the temperature of load wiring;

the mutual inductor and the main shell are fixed by positioning ribs of the main shell, and the mutual inductor can detect the current of a load circuit;

the speed reducing mechanism and the main shell are fixed by positioning ribs and screws of the main shell;

the PCB is provided with a position sensor, and the accurate position of the push rod is detected through the position sensor;

the PCB is fixed by screws through the positioning column and the cover plate of the main shell;

the bus interface is welded on the PCB circuit board;

the built-in mutual inductor can detect the current of a load line, and the temperature sensor can detect the temperature of the outlet terminal.

As shown in fig. 2: the bus interface is a non-polar two-wire system energy carrying communication bus interface, and power supply and communication are simultaneously completed through the interface; the bus uses two wires, does not distinguish polarity, can be connected in a positive and negative way, the direct current voltage of a bus interface after being rectified by a rectifier bridge is directly supplied to a motor for driving, the driving current reaching at least 200mA of a single node can be provided under the strong power supply mode of a host, the power supply intensity can also be adjusted for communication, and the direct current voltage outputs the working voltage of a main MCU and other functional circuits through a voltage stabilizing chip.

The intelligent air switch controller is installed as follows:

the first step is as follows: and inserting the fixed pole piece into the main shell, sliding the fixed pole piece downwards into the L-shaped sliding rail of the main shell, selecting a proper gear according to the position of the model wiring terminal of the controlled air switch, and fixing the gear by using a screw.

The second step is that: the temperature sensor is fixed on the bending bulge of the fixed pole piece.

The third step: the current transformer is fixed on the positioning rib of the main shell.

The fourth step: the screw rod and the polished rod are connected with the speed reducing mechanism through screws, the movable sliding table is in threaded connection with the screw rod, the movable sliding table is in via hole connection with the polished rod, the square hole of the push rod is sleeved on the positioning protrusion of the movable sliding table, a proper gear is selected according to the model of the controlled air switch, and the screws are fixed.

The fifth step: the assembled push rod, the movable sliding table, the screw rod, the light stem and the speed reducing structure are assembled on the positioning rib of the main shell and fixed by screws.

And a sixth step: the control lines of the temperature sensor, the speed reducing mechanism and the mutual inductor are connected to corresponding interfaces of the PCB through plug connectors, and the PCB welded with the bus interface is assembled on the four positioning columns of the main shell.

The seventh step: the cover plate is connected with the main shell body through screws.

The intelligent air switch controller has the following four states:

fig. 3 shows the installation: when the controller is installed, the air switch is required to be ensured to be in an opening state.

FIG. 4 is an initial state: the initial installation and the procedure are determined (the handles of the front arm and the rear arm of the push rod bending structure in the opening and closing states of the air switch are not in contact with each other and are set to be in the initial state).

Fig. 5 shows a closing state: the speed reducing mechanism drives the rear arm of the push rod bending structure to be in contact with the air switch handle forwards, the push rod continues to be pushed forwards until the switch is switched on, if the locked-rotor current occurs and the switch is successfully switched on is judged through the position signal of the position sensor, and if the switch is successfully switched on, the speed reducing mechanism drives the push rod to retreat to the initial state.

FIG. 6 shows the open state: the front arm of the push rod bending structure is driven by the speed reducing mechanism to be in contact with the air switch handle backwards, the handle is continuously pulled backwards until the brake is opened, whether the brake is successfully opened or not is judged according to a current signal of the mutual inductor and a position signal of the position sensor, and if the brake is successfully opened, the push rod is driven by the speed reducing mechanism to move forwards to an initial state.