CN105185668A - Miniature circuit breaker control structure and miniature circuit breaker control device comprising same - Google Patents

Abstract

The invention provides a miniature circuit breaker control structure. The control component controls the transmission mechanism to establish a transmission relationship with the opening drive mechanism or the closing drive mechanism when the circuit breaker is opened or closed. After the switch completes the opening or closing operation, it drives the transmission mechanism to break away from the transmission relationship with the opening or closing drive mechanism. Since the transmission relationship is disconnected, the internal components of the miniature circuit breaker control structure no longer prevent the action of the opening and closing mechanism of the miniature circuit breaker, so after the miniature circuit breaker is controlled to perform opening and closing operations, the opening and closing of the miniature circuit breaker can still be manually operated. The handle realizes opening and closing. The miniature circuit breaker control structure provided by the present invention does not affect the original manual control mode of the miniature circuit breaker, so that in the case of failure of the miniature circuit breaker control structure, the switch can still be opened and closed manually, and the safety performance is improved.

Description

Miniature circuit breaker control structure and miniature circuit breaker control device including the structure

technical field

The invention relates to the technical field of electrical switches, in particular to a miniature circuit breaker control structure and a miniature circuit breaker control device including the structure.

Background technique

The miniature circuit breaker is the most widely used terminal protection device in the building electrical terminal power distribution device. The miniature circuit breaker is composed of opening and closing mechanism, contacts, protection devices (various releases and current heating components), arc extinguishing system, etc.

Its working principle is: use the protection device (release) and the current heating component to realize overload and short circuit protection. When the current passing through the coil in the current heating component is greater than the set current value, the moving iron core of the electromagnetic release will act , Push the striking lever to hit the operating mechanism, unlock the operating mechanism, open the circuit breaker and disconnect the circuit, so as to realize the overload and short circuit protection of the circuit. When the circuit fault is discharged, the circuit is connected through the opening and closing mechanism for closing operation.

At present, the most widely used miniature circuit breakers in our country are the manual opening and closing type, and the circuit can be switched on and off by manually toggling the opening and closing mechanism. Manual opening and closing miniature circuit breakers are simple in structure, low in cost, and do not require additional electric energy, so they can perform opening and closing operations without electric energy, and are widely used in old power grids. However, with the development of science and technology, smart home appliances have been more and more widely used. As a miniature circuit breaker for protecting electrical appliances, it is also urgent to install an intelligent control system. In order to match the widely used manual opening and closing miniature circuit breakers, now, a miniature circuit breaker control structure that can be remotely controlled is mainly added on the side of the miniature circuit breaker, and the miniature circuit breaker is driven by the input control signal. Closing operation.

For example, the Chinese patent document CN204424188U discloses a miniature circuit breaker control structure, which is used to control the opening and closing of the miniature circuit breaker. The gear turntable set in conjunction with the opening and closing mechanism (handle) of the circuit breaker is driven by a motor to rotate in one direction. The closing operation is realized, and the opening operation is realized by turning the gear dial to the other direction to trigger the lever to toggle the tripping part of the circuit breaker. However, in this document, after the opening and closing operation of the circuit breaker is realized through the control structure of the miniature circuit breaker, since the entire transmission mechanism always maintains transmission contact with the gear turntable, the gear turntable is locked and cannot rotate freely, so the linkage set with the gear turntable The handle of the circuit breaker itself can no longer be manually opened and closed. In the case of a fault in the control structure of the miniature circuit breaker, or in an emergency state, it is impossible to manually open and close the switch. In addition, the worm gear is used as the transmission part. The worm gear wears a lot and the transmission efficiency is low, resulting in a low structural life, and a high-power motor needs to be installed.

Contents of the invention

Therefore, the technical problem to be solved by the present invention is to overcome the defect that the handle of the miniature circuit breaker cannot be manually operated to realize opening and closing after the miniature circuit breaker control structure controls the miniature circuit breaker to perform the opening and closing operation in the prior art, thereby providing a After controlling the miniature circuit breaker to open and close, the handle of the miniature circuit breaker can still be manually operated to realize the opening and closing of the miniature circuit breaker control structure.

Another technical problem to be solved by the present invention is to overcome the defects in the prior art that the transmission parts of the miniature circuit breaker control structure have large wear, low transmission efficiency, low structural life, and need to install a high-power motor, thereby providing a transmission part with less wear and tear. , High transmission efficiency, long structural life, miniature circuit breaker control structure with small motor power.

The technical problem to be solved by the present invention is to overcome the defect that the miniature circuit breaker control device in the prior art cannot manually operate the handle of the miniature circuit breaker to realize opening and closing after controlling the miniature circuit breaker to perform opening and closing operations, thereby providing a control system After the miniature circuit breaker is opened and closed, the handle of the miniature circuit breaker can still be manually operated to realize the miniature circuit breaker control device for opening and closing.

The invention provides a miniature circuit breaker control structure, including

motor;

The transmission mechanism is connected with the motor transmission;

The opening drive mechanism is used to drive the opening of the miniature circuit breaker;

The closing drive mechanism is used to drive the miniature circuit breaker to close;

a control component connected to the motor and used to control the rotation of the motor;

The control component controls the transmission mechanism to establish a transmission relationship with the opening drive mechanism or the closing drive mechanism when the circuit breaker is opened or closed, and when the circuit breaker completes the opening or closing operation Then drive the transmission mechanism to break away from the transmission relationship with the opening drive mechanism or the closing drive mechanism.

The miniature circuit breaker control structure of the present invention,

The transmission mechanism, including

The transmission part is connected with the output shaft of the power shaft;

The screw is driven by the transmission part to rotate;

The slider is arranged on the screw, and when the screw rotates, it can make a linear displacement along the screw, and the slider has a home position, an opening position and a closing position on the screw;

When the slider moves toward the opening position at the original position, it drives the opening driving mechanism to drive the miniature circuit breaker to open. After the slider reaches the opening position, the circuit breaker completes opening, and then is controlled by the control component The control returns to the original position, thereby disconnecting the transmission relationship with the opening drive mechanism;

When the slider moves from the original position to the closing position, it drives the closing drive mechanism to drive the miniature circuit breaker to close. After the slider reaches the closing position, the circuit breaker completes closing, and then the control unit The control returns to the home position, thereby breaking the transmission relationship with the closing drive mechanism.

The miniature circuit breaker control structure of the present invention,

The transmission mechanism also includes a guide rod, which is arranged in parallel with the screw rod and has a smooth surface;

The slide block has two holes, one of which has an internal thread on the inner wall for the screw to pass through, and the internal thread cooperates with the external thread on the outer wall of the screw, and the other hole has a smooth inner wall for the guide rod to pass through.

The miniature circuit breaker control structure of the present invention,

The transmission part includes a stepped gear and a spur gear, the stepped gear connects the rotating shaft of the power device and the spur gear, the stepped gear is arranged coaxially with the guide rod, and the spur gear and the screw coaxial setting.

The miniature circuit breaker control structure of the present invention,

The closing drive mechanism includes:

a driving block, arranged on the slider;

The rotating wheel is set in linkage with the opening and closing mechanism of the circuit breaker;

The toggle mechanism is driven by the slider to toggle the rotating wheel to rotate;

When the slider moves between the original position and the opening position, the driving block drives the toggle mechanism to toggle the rotating wheel to rotate, and then drives the opening and closing mechanism of the circuit breaker to complete the closing, and the slider returns to the original position After the position, the drive block is out of contact with the toggle mechanism.

The miniature circuit breaker control structure of the present invention,

The rotating wheel is a gear, and a sector gear matched with the gear is formed on one side of the toggle member.

The miniature circuit breaker control structure of the present invention,

The opening drive mechanism includes:

a driving block, arranged on the slider;

The trip lever extends into the circuit breaker and is used to trigger the trip unit in the circuit breaker;

The trip driver, which can be rotated, is used to trigger the inner movement of the trip bar;

When the trip lever moves, it has an initial position for releasing the tripper in the circuit breaker and a trigger position for triggering the tripper in the circuit breaker;

When the slider moves between the original position and the closing position, the release device in the circuit breaker is triggered to open the circuit breaker. When the slider is in the original position, the trip lever is driven by the reset mechanism Return to the initial position, thereby disengaging the trip unit in the circuit breaker.

The miniature circuit breaker control structure of the present invention,

The reset mechanism includes a spring connection connected to one end of the trip driver, and the spring applies elastic force to the trip driver to move the trip bar toward an initial position.

The miniature circuit breaker control structure of the present invention,

The control components include,

A position sensor is used to sense the position of the slider and output a position signal;

The detection module is used to detect the on-off of the main circuit and output the on-off signal;

The second receiving module is used to receive the position signal output by the position sensor;

The controller controls the start-stop and rotation direction of the motor according to the on-off signal and the position signal.

The miniature circuit breaker control structure of the present invention also includes a first receiving module, which is used to receive the meter arrears signal;

After the first receiving module receives the meter arrears signal, the controller controls the circuit breaker to open according to the meter arrears signal, and always triggers the tripper of the circuit breaker through the trip lever.

The present invention also provides a miniature circuit breaker control device, which includes a casing, and a miniature circuit breaker control structure arranged in the casing, and the miniature circuit breaker control structure is the above-mentioned miniature circuit breaker control structure.

The technical solution of the present invention has the following advantages:

1. In the miniature circuit breaker control structure provided by the present invention, the control component controls the transmission mechanism to establish a transmission relationship with the opening drive mechanism or the closing drive mechanism when the circuit breaker is opened or closed. After the circuit breaker completes the opening or closing operation, it drives the transmission mechanism to break away from the transmission relationship with the opening or closing driving mechanism. Since the transmission relationship is disconnected, the internal components of the miniature circuit breaker control structure no longer prevent the action of the opening and closing mechanism of the miniature circuit breaker, so after controlling the miniature circuit breaker to perform opening and closing operations, the opening and closing of the miniature circuit breaker can still be manually operated. The handle realizes opening and closing. The miniature circuit breaker control structure provided by the present invention does not affect the original manual control mode of the miniature circuit breaker, so that in the case of failure of the miniature circuit breaker control structure, the switch can still be opened and closed manually, and the safety performance is improved.

2. The miniature circuit breaker control structure provided by the present invention converts rotary motion into linear motion through the movement of the slider on the screw, and the movement of the slider between different positions on the screw drives the opening drive mechanism or closing The drive mechanism completes the opening or closing operation of the circuit breaker, and after the opening and closing operations are completed, the slider returns to the original position and disconnects the transmission relationship with the opening drive mechanism or the closing drive mechanism, The transmission structure is simple and the transmission efficiency is high.

3. The miniature circuit breaker control structure provided by the present invention converts the rotary motion output by the motor into the linear motion of the slider by setting the transmission parts, the screw and the slider, so that the acting surface of the force changes and such a transmission mode, the transmission Accurate, high transmission efficiency, small friction, compact structure, reliable operation and long service life.

4. In the miniature circuit breaker control structure provided by the present invention, after the slider returns to its original position, the toggle rod has a certain distance from the top and bottom groove walls of the driving groove, so that the toggle mechanism does not hinder the rotation of the rotating wheel, The rotating wheel can move with the opening and closing mechanism of the miniature circuit breaker, so the handle of the miniature circuit breaker can still be manually operated to achieve opening and closing. When the circuit breaker control device fails or in an emergency, the miniature circuit breaker can be manually toggled The handle of the circuit breaker performs opening and closing operations to improve safety. In addition, the closing drive mechanism of the present invention has simple structure, less component wear, high transmission efficiency and long structural life.

5. The miniature circuit breaker control structure provided by the present invention completes the opening of the circuit breaker by triggering the release device in the circuit breaker. Once the trip lever triggers the release device, the circuit breaker can be quickly bounced and opened. The speed is fast, and no arc is generated during the opening process, which improves the timeliness and safety of opening.

6. The miniature circuit breaker control structure provided by the present invention connects the circuit breaker control device to the network through the control component, realizes the intelligent control of the circuit breaker control, and makes the circuit breaker a part of the smart home.

7. The miniature circuit breaker control structure provided by the present invention is provided with a first receiving module for receiving the meter arrears signal; when the first receiving module receives the meter arrears signal, the controller controls the circuit breaker according to the meter arrears signal At this time, even if the handle of the circuit breaker is manually moved, and the position of the handle of the circuit breaker is kept in the closed state by external force, the circuit cannot be connected. Prevent people from forcibly closing the circuit breaker to steal electricity.

8. The miniature circuit breaker control device provided by the present invention has the above-mentioned miniature circuit breaker control structure, and thus also has the above-mentioned advantages.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the specific embodiments or prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Figure 1 is a front sectional view of a circuit breaker control device provided in the present invention;

Fig. 2 is a rear view of the circuit breaker control device shown in Fig. 1;

Fig. 3 is a schematic diagram of the state of the toggle mechanism after the closing of the circuit breaker control device shown in Fig. 1 is completed;

Fig. 4 is a three-dimensional cross-sectional view of the cooperation between the circuit breaker control device and the circuit breaker of the present invention;

Fig. 5 is a functional block diagram of the control components in the circuit breaker control device of the present invention.

Explanation of reference signs:

1-motor; 21-step gear; 22-spur gear; 23-guide rod; 24-screw; 25-slider; 26-drive block; Toggle shaft; 32-toggle piece; 321-toggle lever; 34-rotating wheel; 35-linkage lever; 36-trip lever, 361-arc through hole; 43-spring; 5-switch; 80-controller; 81-detection module; 82-first receiving module; 83-communication module; 84-second receiving module; 9-circuit breaker; 91-handle.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as there is no conflict with each other.

Example 1

This embodiment provides a miniature circuit breaker control structure, as shown in Figure 1-4, including

A motor 1, a rotating wheel 34, a transmission mechanism and a control assembly arranged in a housing 3;

motor 1;

The transmission mechanism is connected with the motor 1 through transmission;

The opening drive mechanism is used to drive the opening of the miniature circuit breaker;

The closing drive mechanism is used to drive the miniature circuit breaker to close;

A control component, connected to the motor 1, for controlling the rotation of the motor 1;

The control component controls the transmission mechanism to establish a transmission relationship with the opening drive mechanism or the closing drive mechanism when the circuit breaker is opened or closed, and when the circuit breaker completes the opening or closing operation Then drive the transmission mechanism to break away from the transmission relationship with the opening drive mechanism or the closing drive mechanism.

In the miniature circuit breaker control structure provided in this embodiment, the control component controls the transmission mechanism to establish a transmission relationship with the opening drive mechanism or the closing drive mechanism when the circuit breaker 9 is opened or closed. After the circuit breaker completes the opening or closing operation, it drives the transmission mechanism to break away from the transmission relationship with the opening or closing driving mechanism. Since the transmission relationship is disconnected, the internal components of the miniature circuit breaker control structure no longer prevent the action of the opening and closing mechanism of the miniature circuit breaker, so after controlling the miniature circuit breaker to perform opening and closing operations, the opening and closing of the miniature circuit breaker can still be manually operated. The handle realizes opening and closing. The control structure of the miniature circuit breaker provided by this embodiment does not affect the original manual control mode of the miniature circuit breaker, so that when the control structure of the miniature circuit breaker fails, it can still be opened and closed manually, which improves the safety performance.

Specifically, the transmission mechanism includes

The transmission part is connected with the output shaft of the power shaft;

The screw rod 24 is driven by the transmission part to rotate;

The slider 25 is arranged on the screw rod 24. When the screw rod 24 rotates, it can make a linear displacement along the screw rod 24. The slider 25 has a home position, an opening position and a closing position on the screw rod 24. gate position;

When the slider 25 moves toward the opening position at the original position, it drives the opening driving mechanism to drive the miniature circuit breaker to open. After the slider 25 reaches the opening position, the circuit breaker completes opening, and then the The control component is controlled to return to the original position, thereby disconnecting the transmission relationship with the opening drive mechanism;

When the slider 25 moves from the original position to the closing position, it drives the closing drive mechanism to drive the miniature circuit breaker to close. After the slider 25 reaches the closing position, the circuit breaker completes closing, and then the The control assembly controls the return to the original position, thereby breaking the transmission relationship with the closing drive mechanism.

Through the movement of the slider 25 on the screw rod 24, the rotary motion is converted into a linear motion, and the movement of the slider 25 between different positions on the screw rod 24 drives the opening drive mechanism or the closing drive mechanism to complete the circuit breaker. Opening or closing operation, and after the opening and closing operations are completed, the slider 25 returns to the original position and disconnects the transmission relationship with the opening drive mechanism or the closing drive mechanism, so that the transmission structure is simple and the transmission efficiency is high. high.

Further, the transmission mechanism also includes a guide rod 23, which is arranged in parallel with the screw rod 24 and has a smooth surface;

The slider 25 has two holes, one of which has an internal thread on the inner wall for the screw rod 24 to pass through, and the internal thread cooperates with the external thread on the outer wall of the screw rod 24, and the other hole has a smooth inner wall for the guide rod 23 to pass through.

Described transmission part comprises a step gear 21 and a spur gear 22, and step gear 21 connects the rotating shaft of motor 1 and spur gear 22, and described step gear 21 is coaxially arranged with guide rod 23, and described spur gear 22 and screw rod 24 coaxial setting.

By setting the transmission parts, the screw 24 and the slider 25, the rotational motion output by the motor 1 is converted into the linear motion of the slider 25, so that the acting surface of the force is changed from the direction perpendicular to the paper in FIG. 1 to the direction parallel to the paper. The direction changes the acting surface of the force, and this kind of transmission mode has precise transmission, high transmission efficiency, small friction, compact structure, reliable operation and long service life.

As a modification, the guide rod 23 can be a single non-rotating shaft fixedly arranged in the housing 3, or the guide rod 23 is not provided, and two limiting walls are formed on the inner wall of the housing 3 along both sides of the screw rod 24, and the two A movement groove for the slide block 25 to run is formed between the bar limit walls, and the slide block 25 is prevented from rotating through the action of the limit walls.

Further, the closing drive mechanism and the opening drive mechanism include:

A driving block 26 is arranged on the slider 25;

The rotating wheel 34 is set in linkage with the opening and closing mechanism of the circuit breaker;

The toggle mechanism is driven by the slider 25 to toggle the rotating wheel 34 to rotate;

When the slider 25 moves between the original position and the opening position, the driving block 26 drives the toggle mechanism to toggle the rotating wheel 34 to rotate and then drives the opening and closing mechanism of the circuit breaker to complete the closing. After 25 returns to the original position, the driving block 26 is out of contact with the toggle mechanism.

Specifically, the driving block 26 has a driving groove 261;

The toggle mechanism includes a fixed toggle shaft 31, a toggle member 32 that is arranged on the toggle shaft 31 and can rotate around the toggle shaft 31 and is in transmission cooperation with the rotating wheel 34, and A toggle rod 321 provided on the toggle member 32 and protruding into the drive slot 261;

When the slider 25 moves toward the opening position at the home position, the toggle lever 321 contacts the top groove wall (as shown in FIG. 1 ) of the driving groove 261 , and the driving block 26 drives the toggle lever 321 drives the toggle member 32 to rotate, and then drives the rotating wheel 34 to rotate;

When the slider 25 moves toward the closing position at the original position, the toggle lever 321 contacts the bottom groove wall of the driving groove 261, and the driving block 26 drives the toggle lever 321 to drive the toggle member 32 Rotate, and then drive the rotating wheel 34 to rotate;

When the slider 25 is in the original position, the toggle rod 321 has a certain distance from the top and bottom groove walls of the driving groove 261 .

After the slide block 25 returns to the original position, the toggle lever 321 has a certain distance from the top and bottom groove walls of the driving groove 261, so that the toggle mechanism does not hinder the rotation of the turning wheel 34, and the turning wheel 34 can follow the miniature circuit breaker. The opening and closing mechanism of the miniature circuit breaker moves, so the handle 91 of the miniature circuit breaker can still be manually operated to achieve opening and closing. Closing operation improves safety. In addition, the closing drive mechanism of this embodiment has simple structure, less component wear, high transmission efficiency and long structural life.

The drive block 26 is a frame-shaped structure with a drive groove 261 (as shown in FIG. 1 ) in the middle, and the drive block 26 can also be made into a hook shape as a deformed drive block.

The rotating wheel 34 is preferably designed as a gear, and a sector gear matching with the gear is formed on one side of the driving member 32 .

Through gear coordination, the transmission is accurate, the transmission efficiency is high, and the structure is compact, the work is reliable, and the working life is long.

The control assembly, as shown in FIG. 5 , is connected to the motor 1 for controlling the start-stop and rotation direction of the motor 1, and drives the rotating wheel 34 in the toggle mechanism to complete the opening or closing of the circuit breaker. After the brake, the control motor 1 can be used to finally drive the toggle mechanism and the rotating wheel 34 to disengage from the transmission.

As a specific implementation, the control assembly of this embodiment includes

A position sensor is used to sense the position of the slider 25 and output a position signal;

The detection module 81 is used to detect the on-off of the main circuit and output the on-off signal;

The second receiving module 84 is used to receive the position signal output by the position sensor;

A communication module 83, configured to receive opening and closing control signals;

The controller 80 controls the start-stop and rotation direction of the motor 1 according to the on-off signal, the position signal and the opening and closing control signal.

After the second receiving module 84 receives the position signal output by the position sensor, it controls the motor 1 to stop running;

The communication module 83 is used to receive the opening and closing control signals, and is connected to the network through wireless or wired access. The communication module 83 receives the opening and closing control signals sent by the network, thereby connecting the circuit breaker control device to the network, and then through Terminals such as smartphones, computers, and remote controls remotely control the opening and closing of circuit breakers. For example, the communication module 83 may be a WIFI module or a wireless communication module.

The circuit breaker control device is connected to the network through the control component, realizing the intelligent control of the circuit breaker control, making the circuit breaker a part of the smart home.

When it is necessary to control the opening of the circuit breaker, an opening signal is sent, and the communication module 83 forwards the opening signal to the controller 80, and the controller 80 will control the motor 1 to move forward, and then drive the circuit breaker to open. After the circuit breaker is opened, the detection module 81 will detect that the main circuit is disconnected. After the controller receives the on-off signal that the main circuit is connected, it controls the motor 1 to move in reverse to drive the slider 25 to move to the original position. When the slider 25 When reaching the original position, the position sensor will be triggered, and the position sensor will send a position signal to the second receiving module 83, and the controller 1 will stop the motor 1 according to the received position signal, so that the slide block 25 will stop at the original position.

When it is necessary to control the closing of the circuit breaker, a closing signal is sent, and the communication module 83 forwards the closing signal to the controller 80 after receiving the closing signal, and the controller 80 will control the reverse movement of the motor 1, and then drive the circuit breaker to close. After the circuit breaker is closed, the detection module 81 will detect that the main circuit is connected. After the controller receives the on-off signal that the main circuit is connected, the controller controls the motor 1 to move forward to drive the slider 25 to move toward the original position. When the slider When 25 arrives at the original position, the position sensor will also be triggered, and the position sensor will send a position signal to the second receiving module 83, and the controller 1 will stop the motor 1 according to the received position signal, so that the slide block 25 will stop at the original position Location.

The detection module 81, the second receiving module 84, the communication module 83 and the controller 80 are all integrated on the integrated circuit board, and only one position sensor needs to be set at the original position of the corresponding slider 25, which reduces the usage of the sensor , which reduces the space occupied by the components and facilitates the arrangement of the components in the housing 3 .

As a modification, the detection module 81 may not be provided, and three position sensors are provided. The three position sensors are respectively used to sense whether the slider 25 reaches the opening position, the home position and the closing position. When the sliding block 25 reaches the opening position and the closing position, After the brake position, drive the motor 1 again to return the slide block 25 to the original position, so that the toggle mechanism does not hinder the toggle of the circuit breaker handle.

As a modified embodiment of the control assembly, the control assembly can be provided with a timer and a program to control the motor 1 to drive the slider 25 from the home position to the closing position, the closing position returns to the home position, and the home position to the minute position. The gate position, and the running time for the open position to return to the original position. And make the slider 25 automatically return to the original position after reaching the closing position or the opening position from the original position. At this time, the detection module 81 is no longer needed to detect the on-off state of the main circuit.

A linkage lever 35 is arranged at the center of the rotating wheel 34. As shown in FIG. The handle 91 rotates to realize the closing operation of all circuit breakers at the same time. The linkage rod 35 can be a long rod with a triangular or square cross section.

The circuit breaker control device of this embodiment can control a plurality of circuit breakers 9 at the same time. As shown in FIG. When the linkage lever 35 rotates, it drives the handles of all circuit breakers 9 to rotate, so that the rotational force received by the handle 91 of each circuit breaker 9 is basically equal, ensuring that the closing of all circuit breakers 9 can be carried out simultaneously.

The working process of the circuit breaker control device of the present embodiment is:

The process of driving the circuit breaker to close is as follows:

As shown in Figure 1, the circuit breaker is in the opening state at this time. When it is necessary to control the closing of the circuit breaker, a closing signal is sent to the control component, and the control component controls the motor 1 to start. The slide block 25 moves downwards along the screw rod 24 as shown in Fig. 1. At this time, the top wall of the drive groove of the drive block 26 contacts the toggle rod 321 of the toggle piece 32, and the drive block 26 drives the toggle piece 32 to move around. The shaft 31 rotates clockwise as shown in Figure 1, and drives the rotating wheel 34 to rotate through the sector gear formed on the toggle 32, thereby driving the opening and closing mechanism of the circuit breaker to complete the closing operation. After the closing operation is completed, the main circuit controlled by the circuit breaker 9 is turned on, and after the control component receives the signal that there is current passing through, the drive motor 1 is reversed (the rotation direction is opposite to that when the motor 1 is started at the beginning of the closing operation. ), the slide block 25 is moved upwards along the screw rod 24 in Fig. 1, and the slide block 25 returns to the original position (the position sensor is arranged at the original position, once the slide block 25 returns to the original position, the position sensor will be triggered, and the position sensor The signal is sent to the controller, the controller controls the motor 1 to stop running), the driving block 26 is out of contact with the toggle lever 321, and the transmission cooperation relationship between the toggle mechanism and the rotating wheel 34 is released when the brake is closed, and the toggle lever 321 Located in the middle of the drive groove 261, the movement of the toggle lever 321 will not be hindered by the drive block 26, and the rotation of the toggle member 32 and the rotating wheel 34 will not be restricted. The state is shown in Figure 3. At this time, you can manually mode to toggle the handle 91 of the circuit breaker to open the circuit breaker. After the circuit breaker is opened, the toggle member 32 and the rotating wheel 34 return to the position shown in FIG. 1 under the drive of the circuit breaker opening and closing mechanism.

The process of driving the circuit breaker to open is as follows:

Under normal circumstances, when the circuit breaker has been closed, as shown in Figure 3, when the circuit breaker control device is used to control the closing of the short circuit breaker, an opening signal is sent to the control component, and the control component controls the motor 1 to start, and the motor 1 The screw rod 24 is driven to rotate by the transmission part, so that the slider 25 moves upwards along the screw rod 24 as shown in FIG. The member 32 rotates counterclockwise in FIG. 1 around the toggle shaft 31, and drives the rotating wheel 34 to rotate through the sector gear formed on the toggle member 32, thereby driving the opening and closing mechanism of the circuit breaker to complete the opening operation. After the opening operation is completed, the main circuit controlled by the circuit breaker is disconnected, and after the controller receives the signal of no current passing, the drive motor 1 is reversed (opposite to the rotation direction when the motor 1 is started at the beginning of the opening operation) , the slide block 25 is moved downwards along the screw rod 24 in Fig. 1, and the slide block 25 returns to the original position (the position sensor is arranged at the original position, once the slide block 25 returns to the original position, the position sensor will be triggered, and the position sensor Send the signal to the controller, the controller controls the motor 1 to stop running), the driving block 26 is out of contact with the toggle lever 321, and the transmission cooperation relationship between the toggle mechanism and the rotating wheel 34 is released when the brake is opened, and the toggle lever 321 Located in the middle of the drive groove 261, the movement of the toggle lever 321 will not be hindered by the drive block 26, and the rotation of the toggle member 32 and the rotating wheel 34 will not be restricted. At this time, the handle of the circuit breaker can be manually toggled 91. Closing the circuit breaker.

Example 2

This embodiment provides a miniature circuit breaker control structure, which is an improvement on the basis of Embodiment 1. The difference between this embodiment and Embodiment 1 is that the structure of the opening drive mechanism is different and the structure and function of the control assembly different, as shown in Figure 2,

The opening drive mechanism in this embodiment includes:

A driving block 26 is arranged on the slider 25;

The tripping rod 36 passes through the arc-shaped through hole 361 provided on the housing 3, and extends into the circuit breaker for triggering the tripper in the circuit breaker 9;

The tripping driver 42 is capable of rotating, and is used to move the tripping rod 36 in the arc-shaped through hole 361;

The tripping rod 36 moves in the arc-shaped through hole 361 and has an initial position for releasing the tripper in the circuit breaker 9 and a trigger position for triggering the tripper in the circuit breaker 9 ;

When the slider 25 moves between the home position and the closing position, the release device in the circuit breaker 9 is triggered to open the circuit breaker. When the slider 25 is in the home position, the trip lever 36 is Driven by the reset mechanism, it returns to the initial position, thereby releasing the tripper in the trigger circuit breaker 9 .

In this embodiment, the opening of the circuit breaker is completed by triggering the release device in the circuit breaker 9. Once the trip lever 36 triggers the release device, the circuit breaker 9 can be quickly bounced and opened, and the opening speed is fast. There is no arc generated during the switching process, which improves the timeliness and safety of switching off.

The driving block 26 is provided with a protrusion 262 protruding from the side wall of the driving block 26 , and when the driving block 26 moves, the protrusion 262 abuts against the tripping driving member 42 and rotates around the rotating shaft 41 fixed on the housing 3 .

Specifically, the reset mechanism, as shown in FIG. 2 , includes a spring 42 connected to one end of the trip driver 42, and the spring 42 applies force to the trip driver 42 to make the trip lever 36 Has an elastic force to move towards the initial position.

By setting the spring 42, the trip driving member 42 can return to the initial position faster, so as to speed up the release of triggering of the trip unit in the circuit breaker 9 .

The circuit breaker control structure of this embodiment can control a plurality of circuit breakers 9 at the same time. As shown in FIG. When the linkage lever 35 rotates, it drives the handles of all circuit breakers 9 to rotate; the trip lever 36 traverses several circuit breakers 9 arranged side by side, and the trip lever 36 can simultaneously trigger or release the trigger when it moves Trip mechanism in all circuit breakers 9.

In this embodiment, the closing operation process is the same as that in Embodiment 1, but the opening operation process is different,

Under normal circumstances, when the circuit breaker has been closed, as shown in Figure 2, when the circuit breaker is controlled by the circuit breaker control device to close the circuit breaker, the process is: start the motor 1, make the slider 25 press the screw 24 along the As shown in FIG. 1, it moves upward. At this time, the protrusion 262 on the driving block 26 bears against one end of the tripping driver 42, so that the tripping driver 42 rotates clockwise around the tripping driver shaft 41 as shown in FIG. 2 , thereby driving the trip lever 36 to run clockwise in the arc-shaped through hole 361, and the trip lever 36 triggers the action of the trip device in the circuit breaker, so that the circuit breaker 9 is opened, and the circuit breaker handle 91 will also jump to The opening device, this opening method has a fast action speed, and can realize opening in time and quickly. After the opening operation is completed, the main circuit is disconnected. After the controller receives the signal that the main circuit has no current passing through, it drives the motor 1 in reverse, so that the slider 25 moves downward along the screw rod 24 as shown in Figure 1, and the slider 25 Return to the original position (the position sensor is provided at the original position, once the slide block 25 returns to the original position, the position sensor will be triggered, the position sensor sends a signal to the controller, and the controller controls the motor 1 to stop running), and the drive block 26 No longer against the trip rod 36 , under the action of the tension of the spring 43 , the trip driver 42 also returns to the original position, releasing the triggering of the trip device. The toggle lever 321 is located in the middle of the driving groove 261, so that the rotation of the toggle member 32 and the rotating wheel 34 is not restricted. At this time, the handle of the circuit breaker can also be moved manually to close the circuit breaker. After the circuit breaker is closed, the toggle member 32 and the rotating wheel 34 return to the position shown in Figure 1, and the trip lever 36 returns to the position shown in Figure 1. location in Figure 2.

In addition, the control component of this embodiment also includes a first receiving module 82, configured to receive the meter arrears signal;

After the first receiving module 82 receives the meter arrears signal, the controller 80 controls the circuit breaker to open according to the meter arrears signal, and triggers the tripper of the circuit breaker through the trip lever 36 all the time. Toggle the handle of the circuit breaker, and the handle of the circuit breaker remains in the closed state through external force, and the circuit cannot be connected, so as to prevent people from forcibly closing the circuit breaker to steal electricity.

Specifically, when the control component receives the arrears signal from the ammeter, it will actively start the motor 1 to open the circuit breaker. The opening process is the same as that described above, but after the opening operation, the slider 25 does not return to its original position. position, the trip lever 36 does not return, therefore, the trip lever 36 always triggers the release device of the circuit breaker. Connect the circuit to prevent electricity theft.

In this embodiment, as shown in Figures 1 and 3, the arrangement of the components in the housing 3 is as follows: the motor 1, the guide rod 23 and the screw rod 24 are all arranged along the height direction of the circuit breaker control device, and are located in the housing 3. On one side (the right side in the figure), the motor 1 is arranged close to the two side walls of the housing 3, the toggle mechanism, the rotating wheel 34 and the tripping driver 42 are concentrated in the upper part of the housing 3, and the other side of the housing 3 The installation position of the integrated circuit board (integrated with various modules) in the control assembly is reserved on the side, and the integrated circuit can be made into a whole. Made to be similar to the profile of the circuit breaker 9, it is convenient for the circuit breaker control device and the circuit breaker 9 to be installed side by side.

The power supply of the control components in Embodiments 1 and 2 comes directly from the main circuit, and the power supply of the main circuit is used by the control components after stepping down and ballasting. In addition, a rechargeable battery can also be set to prevent the main circuit from being unable to use when the main circuit is powered off. controller control device.

All the gears of the transmission parts in Embodiment 1 and 2, the rotating wheel 34, the screw rod 24, the guide rod 23, the slide block 25, the drive block 26, the toggle member 32, the linkage lever 35, the trip lever 36, the toggle lever 321 The rotating shaft 41 of the tripping driving part and the tripping driving part 42 are all made of metal materials to improve the strength and wear resistance, and the housing 3 is made of plastic materials.

A switch 5 can also be arranged on the casing 3, and the function of controlling the motor 1 can be turned on or off by the circuit breaker control device by pulling the switch.

Example 3

This embodiment provides a miniature circuit breaker control device, as shown in FIGS. 1-3 , which includes a housing 3 and a miniature circuit breaker control structure as described in Embodiment 1 or 2 arranged in the housing 3 .

Since the MCB control device of this embodiment has the MCB control structure of Embodiment 1 or 2, it also has the advantages described in Embodiment 1 or 2.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the scope of protection of the present invention.

Claims (11)

1. a miniature circuit breaker control structure, is characterized in that, comprises

Motor (1);

Transmission mechanism, is in transmission connection with motor (1);

Separating brake driving mechanism, for driving miniature circuit breaker separating brake;

Combined floodgate driving mechanism, closes a floodgate for driving miniature circuit breaker;

Control assembly, is connected with described motor (1), rotates for controlling described motor (1);

Described control assembly control described transmission mechanism when carrying out sub-switching operation or closing operation to circuit breaker and described separating brake driving mechanism or combined floodgate driving mechanism set up drive connection, and complete transmission mechanism described in sub-switching operation or closing operation rear drive at circuit breaker and depart from drive connection with described separating brake driving mechanism or combined floodgate driving mechanism.

2. miniature circuit breaker control structure according to claim 1, is characterized in that,

Described transmission mechanism, comprises

Drive disk assembly, is connected with the output shaft of power shaft;

Screw rod (24), rotates by drive disk assembly drives;

Slide block (25), be arranged on described screw rod (24), when described screw rod (24) rotates, can do straight-line displacement along described screw rod (24), described slide block (25) has home position, open position and closing position on described screw rod (24);

Described slide block (25) is when move towards open position in position in position, drive the motion of separating brake driving mechanism to drive miniature circuit breaker separating brake, after described slide block (25) arrives open position, circuit breaker completes separating brake, control reposition position by described control assembly afterwards, thus disconnect the drive connection with separating brake driving mechanism;

Described slide block (25) is when move towards closing position in position in position, drive the motion of combined floodgate driving mechanism to drive miniature circuit breaker to close a floodgate, after described slide block (25) arrives closing position, circuit breaker completes combined floodgate, control reposition position by described control assembly afterwards, thus disconnect the drive connection with combined floodgate driving mechanism.

3. miniature circuit breaker control structure according to claim 2, is characterized in that,

Described transmission mechanism also comprises, guide rod (23), be arranged in parallel, have smooth surface with screw rod (24);

Slide block (25) has two holes, one of them hole inwall has internal thread, pass for screw rod (24), described internal thread coordinates with the external screw thread on screw rod (24) outer wall, and another hole has smooth inner wall and passes for guide rod (23).

4. miniature circuit breaker control structure according to claim 3, is characterized in that,

Described drive disk assembly, comprise a stepped gear (21) and a spur gear (22), the rotating shaft of described stepped gear (21) connecting power device and described spur gear (22), described stepped gear (21) and described guide rod (23) are coaxially arranged, and described spur gear (22) and described screw rod (24) are coaxially arranged.

5. the miniature circuit breaker control structure according to any one of claim 1-4, is characterized in that,

Described combined floodgate driving mechanism, comprising:

Drive block (26), is arranged on described slide block (25);

Moving runner (34), links with the close/open machine of circuit breaker and arranges;

Toggle mechanism, stirs moving runner (34) and rotates by described slide block (25) drives;

When described slide block (25) moves between position and open position in position, described drive block (26) drives toggle mechanism to stir moving runner (34) and rotates and then drive the close/open machine of circuit breaker to complete combined floodgate, behind described slide block (25) reposition position, described drive block (26) and described toggle mechanism disengage.

6. miniature circuit breaker control structure according to claim 5, is characterized in that,

Described moving runner (34) is gear, and described shifting part (32) side forms the sector gear coordinated with described gear.

7. the miniature circuit breaker control structure according to any one of claim 1-6, is characterized in that,

Described separating brake driving mechanism, comprising:

Drive block (26), is arranged on described slide block (25);

Release lever (36), extend into circuit breaker internal, for triggering the release in circuit breaker (9);

Dropout actuator (42), can rotate, for stirring motion in release lever (36);

There is during described release lever (36) motion the initial position removing the release triggered in circuit breaker (9) and the trigger position triggering the release in circuit breaker (9);

When described slide block (25) moves between position and closing position in position, the release triggered in circuit breaker (9) makes breaker open operation, when described slide block (25) is in home position, described release lever (36) gets back to initial position under the drive of resetting device, thus removes the release triggered in circuit breaker (9).

8. miniature circuit breaker control structure according to claim 7, is characterized in that,

Described resetting device, comprise the spring (42) be connected with described dropout actuator (42) one end to connect, described spring (42) makes described release lever (36) have the elastic force moved towards initial position to the applying of described dropout actuator (42).

9. the miniature circuit breaker control structure according to any one of claim 1-8, is characterized in that,

Described control assembly comprises,

Position transducer, for responding to the position of slide block (25), and outgoing position signal;

Detection module (81), for detecting the break-make of main circuit and exporting make-and-break signal;

Second receiver module (84), for the position signalling that receiving position transducer exports;

Controller (80), controls start and stop and the rotation direction of motor (1) according to described make-and-break signal and described position signalling.

10. miniature circuit breaker control structure according to claim 9, is characterized in that, also comprises the first receiver module (82), for receiving ammeter arrearage signal;

After the first receiver module (82) receives ammeter arrearage signal, controller (80) according to described ammeter arrearage signal controlling breaker open operation, and triggers the release of circuit breaker all the time by described release lever (36).

11. 1 kinds of miniature circuit breaker control device, comprise housing (3), and the miniature circuit breaker control structure be arranged in housing (3), it is characterized in that, described miniature circuit breaker control structure is the miniature circuit breaker control structure described in any one of claim 1-10.