CN209461392U - A small circuit breaker opening and closing position detection mechanism - Google Patents

Abstract

The utility model belongs to the field of circuit breakers, and is specifically a small circuit breaker opening and closing position detection mechanism, including a bottom plate, a moving device, a buffer device, and a control panel. The side plates are fixed on the top of the bottom plate by screws, and the number of the side plates is Two, evenly distributed on the top of the bottom plate, a first electromagnet and a second electromagnet are arranged between the side plates, and the first electromagnet, the second electromagnet and the bottom plate pass through Screw connection. The utility model utilizes the electromagnetic induction principle of the first electromagnet and the second electromagnet to realize the automation of circuit breaker opening and closing detection, and the first electromagnet and the second electromagnet are not permanent magnets, only need to detect It can be used at any time without affecting the magnetic environment in the circuit breaker, and on the one hand, it improves the stability of detection, on the other hand, the impact force is too high to damage the first contact switch and the second contact switch.

Description

A small circuit breaker opening and closing position detection mechanism

technical field

The utility model belongs to the field of circuit breakers, in particular to a small circuit breaker opening and closing position detection mechanism.

Background technique

In order to meet the functional and characteristic requirements of the external circuit breaker of the electric energy meter, the closing position and opening position mechanism are designed in the electric operation module unit to reliably judge the control command status of the feedback circuit board. At present, in order to meet the requirements of this functional characteristic, two Hall components and one micro switch or three micro switches are used to detect and judge the closing position and opening position.

Disadvantages of the prior art: 1. The distance between the closing position and the opening position is very close, so the position of the board is not enough, and it is difficult to arrange two or three micro switches; 2. The same product on the market uses two or Three Hall components are used to detect and judge the closing position and opening position. The biggest disadvantage of this design is that the program of the product is easy to be confused in a strong magnetic environment, which makes the product invalid.

Utility model content

The purpose of the utility model is to provide a small circuit breaker opening and closing position detection mechanism.

The technical scheme adopted in the utility model is as follows:

A small circuit breaker opening and closing position detection mechanism, including a bottom plate, a moving device, a buffer device, and a control panel. The side plates are fixed on the top of the bottom plate by screws. On the top of the base plate, a first electromagnet and a second electromagnet are arranged between the side plates, and the first electromagnet, the second electromagnet and the base plate are connected by screws, and the first electromagnet , The moving device is arranged above the second electromagnet, the moving device includes a moving plate, a mounting plate, a rotating shaft, and a runner, the mounting plate is welded on the front and rear ends of the moving plate, and the mounting plate The rotating shaft is provided, and the rotating shaft is connected with the installation plate through a key. The rotating wheel is installed outside the rotating shaft, and the rotating wheel is connected with the rotating shaft through a bearing. The first chute is provided at the front and rear of the first electromagnet, the second chute is provided at the front and rear of the second electromagnet, the top plate is fixed on the upper side of the side plate by screws, and the buffer device is provided at the lower end of the top plate. , the buffer device includes a connecting plate, a spring, and a pressing plate, the connecting plate and the top plate are connected by screws, the lower end of the connecting plate is provided with the spring, the lower end of the spring is provided with the pressing plate, the The spring is welded between the connecting plate and the pressing plate, a first contact switch is provided between the first chute, a second contact switch is provided between the second chute, and the top plate The control panel is provided, and a processor is arranged in the control panel, and the model of the processor is XAM437XAZDN.

Preferably: the number of the moving devices is two, the shape of the first chute and the second chute are both "convex" shapes, the installation plate is inserted into the first chute, the second chute The material of the runner is rubber, and the runner is in interference connection with the first chute and the second chute.

In this way, when the first electromagnet is energized, a magnetic force is generated to push the moving device above the first electromagnet, and the runner will rotate along the inner wall of the first chute, so that all The moving device moves up, and similarly, when the second electromagnet is energized, the moving device above the second electromagnet can be pushed to move up.

Preferably: there are two buffer devices, which are respectively located directly above the moving device, the first contact switch, the second contact switch are plugged in with the top plate, and pass through the The connecting plate is fixed on the inner side of the spring.

In this way, when the first electromagnet is energized, the moving device moves up to contact the pressure plate, and compresses the spring so that the top surface of the pressure plate presses against the first contact switch, The first contact switch is opened, and the initial disconnection position is switched to the conduction position. At this time, the circuit breaker is in the closed state. Similarly, when the second electromagnet is energized, the second contact switch is opened. The circuit breaker is in the open state.

Preferably: the material of the moving plate is metal iron sheet, and the material of the pressing plate is rubber.

In this way, the metal iron sheet can sense the magnetic force generated by the first electromagnet and the second electromagnet, so that the moving device can rise, and the impact force when the moving plate is in contact with the pressing plate can be buffered by using rubber .

Preferably: the control panel and the top board are connected by screws.

With such arrangement, the control panel can be more stably fixed in the top plate through screw connection.

Preferably: the processor is connected to the control panel through a card slot.

So set, the processor can receive the high-level control signal and the low-level control signal transmitted in the circuit breaker, and when receiving the high-level control signal, energize the first electromagnet, so that the first trigger The point switch is opened, and the circuit breaker is in the closed state. When receiving a low-level control signal, the second electromagnet is energized, and the first electromagnet is de-energized, so that the second contact switch is opened. , put the circuit breaker in the open state.

Preferably: the first electromagnet, the first contact switch, the second electromagnet, the second contact switch, the processor and the control panel are electrically connected.

With such an arrangement, the degree of automation of the device can be increased through the electrical connection.

The beneficial effects of the utility model are:

1. The first electromagnet generates magnetism and pushes the moving plate made of metal above, so that the moving device makes a linear upward movement along the first chute. When the moving plate touches the pressure plate, the thrust of the magnetic conversion will push the spring, so that The spring is compressed, and then the pressure plate will contact the first contact switch, so that the circuit breaker is in the closed state, the second electromagnet is energized, and the first electromagnet is energized and disconnected, so that the moving plate located above the second electromagnet pushes the pressure plate, Make the pressure plate contact the second contact switch, make the circuit breaker in the opening state, use the electromagnetic induction principle of the first electromagnet and the second electromagnet, realize the automation of the opening and closing detection of the circuit breaker, and use the first electromagnet, It is not a permanent magnet with the second electromagnet, it can only be used when testing, and will not affect the magnetic environment in the circuit breaker;

2. The material of the pressing plate is rubber, which can buffer the impact force when the moving plate is in contact with the pressing plate, and the spring absorbs most of the pressure, so that the pressing plate can smoothly contact the first contact switch and the second contact switch, On the one hand, the stability of detection is improved, and on the other hand, the impact force is too high to damage the first contact switch and the second contact switch.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, together with the following specific embodiments, are used to explain the utility model, but do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is a three-dimensional structural schematic diagram of a small circuit breaker opening and closing position detection mechanism described in the utility model;

Fig. 2 is a schematic diagram of the internal structure of a small circuit breaker opening and closing position detection mechanism described in the utility model;

Fig. 3 is a position relation diagram of the buffer device of the opening and closing position detection mechanism of a small circuit breaker described in the utility model;

Fig. 4 is a partial cross-sectional view of the side plate of the opening and closing position detection mechanism of a small circuit breaker according to the utility model;

Fig. 5 is a part diagram of the buffer device of the opening and closing position detection mechanism of a small circuit breaker according to the utility model;

Fig. 6 is a block diagram of the circuit structure of a small circuit breaker opening and closing position detection mechanism according to the utility model.

The reference signs are explained as follows:

1. Base plate; 2. Side plate; 3. First electromagnet; 4. Moving device; 5. Moving plate; 6. Mounting plate; 7. Rotating shaft; 8. Runner; 9. First chute; Top plate; 11, buffer device; 12, connecting plate; 13, spring; 14, pressure plate; 15, first contact switch; 16, second electromagnet; 17, second chute; 18, second contact switch; 19. Control panel; 20. Processor.

Detailed ways

Further illustrate the utility model below by embodiment in conjunction with accompanying drawing.

Example

As shown in Figures 1 to 6, a small circuit breaker opening and closing position detection mechanism includes a bottom plate 1, a moving device 4, a buffer device 11, and a control panel 19. The side plate 2 is fixed on the upper end of the bottom plate 1 by screws, and the side plate 2 The number is two, which are evenly distributed on the upper end of the bottom plate 1. The first electromagnet 3 and the second electromagnet 16 are arranged between the side plates 2. The first electromagnet 3 and the second electromagnet 16 function to generate magnetic force when electrified. Connected by screws between the first electromagnet 3, the second electromagnet 16 and the base plate 1, the first electromagnet 3, the second electromagnet 16 are provided with a moving device 4 above, and the moving device 4 includes a moving plate 5, a mounting plate 6, The rotating shaft 7, the runner 8, and the mounting plate 6 are welded on the front and rear ends of the moving plate 5, the rotating shaft 7 is arranged in the mounting plate 6, the rotating shaft 7 and the mounting plate 6 are connected by a key, and the rotating wheel is installed on the outside of the rotating shaft 7 8. The runner 8 and the rotating shaft 7 are connected by bearings. The first electromagnet 3 is provided with a first chute 9 at the front and rear, and the second electromagnet 16 is provided with a second chute 17 at the front and rear. The top plate 10 is fixed by screws On side plate 2 upper end, top plate 10 lower end is provided with cushioning device 11, and buffering device 11 comprises connecting plate 12, spring 13, pressing plate 14, is connected by screw between connecting plate 12 and top plate 10, and connecting plate 12 lower end is provided with spring 13, The spring 13 acts to buffer most of the impact force. The lower end of the spring 13 is provided with a pressing plate 14. The spring 13 is welded between the connecting plate 12 and the pressing plate 14. A first contact switch 15 is arranged between the first chute 9. A contact switch 15 is used to control the closing state of the circuit breaker. A second contact switch 18 is arranged between the second chute 17. The second contact switch 18 is used to control the opening state of the circuit breaker. The control panel 19 is provided with a processor 20 inside the control panel 19 .

Working principle: When performing circuit breaker opening and closing detection, first send a high-level control signal to the processor 20, and the processor 20 will energize the first electromagnet 3, and the first electromagnet 3 will generate magnetism according to the principle of electromagnetic induction. Push the moving plate 5 made of metal at the top, so that the moving device 4 moves up in a straight line along the first chute 9. When the moving plate 5 touches the pressure plate 14, the thrust of the magnetic force conversion will push the spring 13 to compress the spring 13 , then the pressure plate 14 will contact the first contact switch 15, so that the circuit breaker is in the closing state, and then send a low-level control signal to the processor 20, and the processor 20 will energize the second electromagnet 16, and the first The electromagnet 3 is energized and disconnected, so that the moving plate 5 above the second electromagnet 16 pushes the pressing plate 14, and the pressing plate 14 contacts the second contact switch 18, so that the circuit breaker is in the opening state, and the detection of the opening and closing positions is completed.

Preferably: the number of moving devices 4 is two, the shapes of the first chute 9 and the second chute 17 are both "convex" shapes, the mounting plate 6 is inserted into the first chute 9, the second chute 17, and the material of the runner 8 is It is rubber, and the runner 8 is in interference connection with the first chute 9 and the second chute 17, so that when the first electromagnet 3 is energized, a magnetic force is generated to push the moving device 4 above the first electromagnet 3 , the runner 8 will rotate along the inner wall of the first chute 9, so that the mobile device 4 moves upwards. Similarly, when the second electromagnet 16 is energized, the mobile device 4 above the second electromagnet 16 can be pushed to move upwards, buffering The number of devices 11 is two, which are respectively located directly above the mobile device 4. The first contact switch 15, the second contact switch 18 and the top plate 10 are inserted and connected, and pass through the connecting plate 12 and are fixed on the inner side of the spring 13. When the first electromagnet 3 is energized, the mobile device 4 moves up and contacts the pressing plate 14, and the spring 13 is compressed, so that the upper end surface of the pressing plate 14 is pressed on the first contact switch 15, and the first contact switch 15 is opened, and the The initial disconnection position is switched to the conduction position. At this time, the circuit breaker is in the closing state. Similarly, when the second electromagnet 16 is energized, the second contact switch 18 is opened. At this time, the circuit breaker is in the opening state, and the material of the moving plate 5 It is a metal iron sheet, and the material of the pressing plate 14 is rubber. The metal iron sheet can sense the magnetic force generated by the first electromagnet 3 and the second electromagnet 16, so that the moving device 4 can rise, and the rubber can be used to buffer the moving plate 5 when it contacts the pressing plate 14. The impact force, the control panel 19 and the top plate 10 are connected by screws, the control panel 19 can be more stably fixed in the top plate 10 through the screw connection, the processor 20 and the control panel 19 are connected by a card slot, and the processor 20 It can receive the high-level control signal and low-level control signal transmitted in the circuit breaker. When the high-level control signal is received, the first electromagnet 3 is energized, so that the first contact switch 15 is opened, and the circuit breaker is in the closed state. Gate state, when receiving a low-level control signal, energize the second electromagnet 16, and de-energize the first electromagnet 3, so that the second contact switch 18 is opened, and the circuit breaker is in the opening state, and the first electromagnet The iron 3, the first contact switch 15, the second electromagnet 16, the second contact switch 18, the processor 20 and the control panel 19 are electrically connected, and the degree of automation of the device can be increased through the electrical connection.

The preferred embodiment of the utility model has been described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned embodiment. Various changes are made.

Claims (7)

1. a kind of miniature circuit breaker divide-shut brake position detecting mechanism, it is characterised in that: including bottom plate (1), mobile device (4), delay Flushing device (11), control panel (19), side plate (2) are fixed by screws in the bottom plate (1) upper end, side plate (2) quantity It is two, is evenly distributed in the bottom plate (1) upper end, the first electromagnet (3), the second electricity is provided between the side plate (2) Magnet (16) is connected by screw to, institute between first electromagnet (3), second electromagnet (16) and the bottom plate (1) State the first electromagnet (3), second electromagnet (16) top is provided with the mobile device (4), mobile device (4) packet Movable plate (5), mounting plate (6), rotation axis (7), runner (8) are included, the mounting plate (6) is welded on before and after the movable plate (5) End, the mounting plate (6) is interior to be provided with the rotation axis (7), passes through key between the rotation axis (7) and the mounting plate (6) Connection, rotation axis (7) outside are equipped with the runner (8), pass through axis between the runner (8) and the rotation axis (7) Connection is held, the first electromagnet (3) front and back are provided with first sliding groove (9), the second electromagnet (16) front and back setting Have second sliding slot (17), top plate (10) is fixed by screws in the side plate (2) upper end, and top plate (10) the lower end setting is It states buffer unit (11), the buffer unit (11) includes connecting plate (12), spring (13), pressing plate (14), the connecting plate (12) it is connected by screw between the top plate (10), connecting plate (12) lower end is provided with the spring (13), described Spring (13) lower end is provided with the pressing plate (14), and the spring (13) is welded on the connecting plate (12), the pressing plate (14) Between, it is provided with the first contact switch (15) between the first sliding groove (9), is provided with second between the second sliding slot (17) Contact switch (18), the top plate (10) is interior to be provided with the control panel (19), is provided with place in the control panel (19) It manages device (20).

2. a kind of miniature circuit breaker divide-shut brake position detecting mechanism according to claim 1, it is characterised in that: the movement Device (4) quantity is two, and the first sliding groove (9), the second sliding slot (17) shape are all "convex" shaped, the mounting plate (6) it is inserted into the first sliding groove (9), the second sliding slot (17), runner (8) material is rubber, the runner (8) and institute Interference between first sliding groove (9), the second sliding slot (17) is stated to connect.

3. a kind of miniature circuit breaker divide-shut brake position detecting mechanism according to claim 2, it is characterised in that: the buffering Device (11) quantity is two, is located at the surface of the mobile device (4), first contact switch (15), described Grafting between second contact switch (18) and the top plate (10), and the connecting plate (12) are passed through, it is fixed on the spring (13) inside.

4. a kind of miniature circuit breaker divide-shut brake position detecting mechanism according to claim 3, it is characterised in that: the movement Plate (5) material is metal iron plate, and pressing plate (14) material is rubber.

5. a kind of miniature circuit breaker divide-shut brake position detecting mechanism according to claim 4, it is characterised in that: the control It is connected by screw between panel (19) and the top plate (10).

6. a kind of miniature circuit breaker divide-shut brake position detecting mechanism according to claim 5, it is characterised in that: the processing It is connect between device (20) and the control panel (19) by card slot.

7. a kind of miniature circuit breaker divide-shut brake position detecting mechanism according to claim 6, it is characterised in that: described first Electromagnet (3), first contact switch (15), second electromagnet (16), second contact switch (18), the place It is electrically connected between reason device (20) and the control panel (19).