CN216671523U - Moulded case circuit breaker with voltage detection function - Google Patents

Abstract

The utility model relates to a molded case circuit breaker with a voltage detection function, which comprises a base and an intelligent tripping module, wherein the base is provided with a transmission mechanism, the transmission mechanism realizes the action execution of switching-on and switching-off of the circuit breaker, the base is provided with one or more modularized mounting positions, and the base is provided with a circuit access end and a circuit output end of the circuit breaker; the intelligent tripping module is arranged in the modularized installation position and comprises an electronic controller module, a magnetic flux converter module and a mutual inductor module, wherein the magnetic flux converter module drives a transmission mechanism through magnetic force, and the mutual inductor module is respectively electrically connected with the circuit access end and the circuit output end through a pre-connecting wire so as to realize pre-detection of voltage and phase during opening and real-time detection of voltage and phase during closing. Compared with the prior art, the circuit breaker is safer to install, test and use, the safety risk is reduced, and the potential safety hazard is reduced.

Description

Moulded case circuit breaker with voltage detection function

Technical Field

The utility model relates to the field of circuit breakers, in particular to a molded case circuit breaker with a voltage detection function.

Background

The current market lacks necessary voltage detection aiming at 315A and electronic molded case circuit breaker products of a shell frame below the 315A, and can only detect voltage when a circuit is switched on, cannot detect voltage when the circuit is switched off, and cannot make corresponding judgment on the state of the voltage. At the moment, if the overvoltage or undervoltage is serious, the safety of the product can not be ensured, potential safety hazards are easily caused, and life and property losses are caused.

The existing product does not have a voltage detection method for the molded case circuit breaker correspondingly, and the circuit breaker product which can realize voltage and phase detection during switching-on and switching-off needs to be researched and developed urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a molded case circuit breaker with a voltage detection function, namely a circuit breaker product which realizes voltage and phase detection during switching on and switching off.

The purpose of the utility model can be realized by the following technical scheme:

the utility model aims to protect a molded case circuit breaker with a voltage detection function, which comprises a base and an intelligent tripping module, wherein the intelligent tripping module comprises the following specific components:

the base is provided with a transmission mechanism, the transmission mechanism realizes the action execution of switching-on and switching-off of the circuit breaker, the base is provided with one or more modularized mounting positions, and the base is provided with a circuit access end and a circuit output end of the circuit breaker;

the intelligent tripping module is arranged in the modularized installation position and comprises an electronic controller module, a magnetic flux converter module and a mutual inductor module, wherein the magnetic flux converter module drives a transmission mechanism through magnetic force, and the mutual inductor module is respectively electrically connected with the circuit access end and the circuit output end through a pre-connecting wire so as to realize the pre-detection of voltage and phase during opening and the real-time detection of voltage and phase during closing.

Furthermore, the bottom surface of base is equipped with three trough.

Furthermore, the pre-connection line comprises three pre-connection sub-lines preset with the circuit access end, and the starting ends of the three pre-connection sub-lines are respectively connected with the interfaces of the circuit access end.

Further, the transformer module includes three transformer submodules opposite to the three phases.

Furthermore, the three mutual inductor submodules are respectively and correspondingly connected with the tail ends of the three pre-connecting sub-lines.

Furthermore, the three wiring grooves are linear grooves and are arranged in parallel.

Furthermore, the mutual inductor module is connected with the electronic controller module through an analog circuit, and the electronic controller module converts analog signals of voltage signals and phase signals obtained by the mutual inductor module into digital signals.

Further, the electronic controller module is connected with the magnetic flux converter module through an analog circuit, and therefore the magnetic flux converter module is instructed to output corresponding magnetic flux.

Further, the magnetic flux converter drives the traction rod in the transmission mechanism to displace through the magnetic flux of the coil.

Furthermore, the mutual inductor module is arranged in a modularized installation position, the magnetic flux converter module is arranged above the mutual inductor module, and the electronic controller module is arranged above the magnetic flux converter module;

and a backup protection is also arranged in the modularized mounting position on one side of the intelligent tripping module.

Compared with the prior art, the utility model has the following technical advantages:

(1) the moulded case circuit breaker with the intelligent tripping control module in the technical scheme is used for detecting the pre-voltage and the switch-on voltage simultaneously, so that the circuit breaker is safer to install, test and use, the safety risk is reduced, and the potential safety hazard is reduced.

(2) The technical scheme has the advantages of simple structure and reliable detection, and realizes the functions of voltage pre-detection, phase voltage detection and phase failure detection when the rear part of the molded case circuit breaker with the intelligent tripping control module is opened and closed.

Drawings

Fig. 1 is a schematic sectional view of a molded case circuit breaker according to the present invention;

fig. 2 is a schematic structural view of the molded case circuit breaker according to the present invention.

Fig. 3 is a schematic bottom lead view of the molded case circuit breaker of the present invention.

In the figure, 1 is a base, 2 is a fixed contact, 3 is an arc extinguishing device, 4 is a cover, 5 is a transmission mechanism, 6 is an intelligent tripping control module, 7 is backup protection, a is a wire inlet end, B is a wiring groove, and C is a wire outlet end.

Detailed Description

The utility model is described in detail below with reference to the figures and specific embodiments. In the technical scheme, the characteristics such as the part type, the material name, the connection structure and the like which are not explicitly described are all regarded as common technical characteristics disclosed in the prior art.

The molded case circuit breaker with voltage detection function in the present embodiment includes a base 1 and a smart trip module 6, in which specific reference is made to fig. 1. The intelligent tripping control module has the main functions of providing voltage pre-detection of opening a brake, phase voltage detection of closing a brake and phase-lack detection for the molded case circuit breaker with the intelligent tripping control module. When the circuit breaker needs to be installed, tested and used, voltage is detected, whether the voltage before switching-on is too large or too small can be effectively judged, safety risks are reduced, and life and property safety is protected. Meanwhile, when the switch is switched on, voltage detection can be carried out on each phase, and whether each phase voltage is in phase failure or not is effectively judged.

The base 1 is provided with a transmission mechanism 5, the transmission mechanism 5 realizes the action execution of switching-on and switching-off of the circuit breaker, the base 1 is provided with one or more modularized mounting positions, and the base 1 is provided with a circuit access end and a circuit output end of the circuit breaker;

the intelligent tripping module 6 is arranged in the modularized installation position, the intelligent tripping module 6 comprises an electronic controller module, a magnetic flux converter module and a mutual inductor module, the magnetic flux converter module drives the transmission mechanism 5 through magnetic force, and the mutual inductor module is respectively electrically connected with the circuit access end and the circuit output end through a pre-connecting wire so as to realize the pre-detection of voltage and phase during opening and the real-time detection of voltage and phase during closing.

The bottom surface of the base 1 is provided with three wiring grooves. The pre-connecting line comprises three pre-connecting sub-lines preset with the circuit access end, and the starting ends of the three pre-connecting sub-lines are respectively connected with the interfaces of the circuit access end. The transformer module includes three transformer submodules opposite to three phases. And the three mutual inductor submodules are respectively and correspondingly connected with the tail ends of the three pre-connecting sub-circuits.

In specific implementation, the three wiring grooves are linear grooves and are arranged in parallel.

The mutual inductor module is connected with the electronic controller module through an analog circuit, and the electronic controller module converts analog signals of voltage signals and phase signals obtained by the mutual inductor module into digital signals. And the electronic controller module is connected with the magnetic flux converter module through an analog circuit so as to instruct the magnetic flux converter to output corresponding magnetic flux. The flux transformer drives the traction rod in the transmission 5 to displace by the magnetic flux of the coil.

During specific implementation, the main current transformer product in the existing product is selected as the transformer module, and the main current magnetic flux converter product in the market is selected as the magnetic flux converter.

When the magnetic flux transformer is specifically implemented, the transformer module is arranged in the modularized installation position, the magnetic flux converter module is arranged above the transformer module, and the electronic controller module is arranged above the magnetic flux converter module.

A traction transmission structure of a main stream of an existing circuit breaker is selected, namely, a transmission mechanism 5 comprises a movable contact, a rotating shaft, a movement mechanism, a support, a traction rod and the like, and a magnetic flux converter drives the traction rod in the transmission mechanism 5 to displace through magnetic flux of a coil. The transmission mechanism 5 has 4 states, namely tripping, carrying and buckling, closing and opening. The initial state is in a trip state. When the breaker is switched on, the load buckle must be carried out firstly, and then the breaker can be switched on. When the switch is switched on, the transmission mechanism rotates anticlockwise, so that a moving contact on the transmission mechanism is contacted with a fixed contact, and the switch-on action is finished. When switching-off or tripping is carried out, the movable contact and the static contact are separated on the basis of switching-on, and the transmission mechanism rotates clockwise. It can be seen that the above states can be achieved by driving the traction rod in the transmission mechanism 5, that is, the flux transformer module in the present embodiment can control the switching of the above states.

And a backup protection 7 is also arranged in the modularized mounting position on one side of the intelligent tripping module 6, and the existing mainstream equipment in the market is selected as the backup protection 7. The backup protection 7 refers to protection for removing a fault when the main protection or the breaker fails. When a circuit fails, the protection on the circuit will momentarily signal a break breaker breaking the circuit.

The utility model is realized by the following forms: the transmission mechanism 5 is installed in the cavity in the middle of the base 1. The static contact 2 is installed in the contact intracavity in base 1, and arc control device 3 is installed in the arc extinguishing chamber of base 1, and arc control device 3 includes explosion chamber, safety cover for the product gas etc.. The backup protection 7 and the intelligent tripping control module 6 are installed in a corresponding proper cavity of the base 1, the intelligent tripping control module 6 comprises an electronic controller module, a magnetic flux converter module, a mutual inductor module and the like, and the cover 4 is installed on the base 1. The mutual inductor module is well installed, a group of wires are led out from the rear end, come out from the position A, pass through the position B and then are connected at the position C, and the voltage of the line can be detected at the moment, so that the voltage pre-detection, the phase voltage detection and the phase failure detection are completed.

The working principle is as follows: according to the utility model, a group of lines are led out from the wire inlet end of the circuit breaker base to be connected to the wire outlet end, when the circuit breaker is opened, the voltage of the wire inlet end can be pre-detected, and the voltage states, namely overvoltage, undervoltage, no voltage and the like, can be judged; when the circuit breaker is switched on, the circuit can be detected to judge the phase voltage state of each phase and detect the phase failure, so that the circuit breaker is safer to install, test and use, and the potential safety hazard is reduced. Therefore, the function of detecting voltage of the circuit breaker during opening and closing is realized.

The embodiments described above are intended to facilitate the understanding and use of the utility model by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims (10)

1. A molded case circuit breaker with a voltage detection function, comprising:

the circuit breaker switching-on and switching-off device comprises a base (1), wherein a transmission mechanism (5) is arranged on the base (1), the transmission mechanism (5) is used for realizing the action execution of the switching-on and switching-off of the circuit breaker, one or more modularized mounting positions are arranged on the base (1), and a circuit access end and a circuit output end of the circuit breaker are arranged on the base (1);

intelligent dropout module (6) is located among the modularization installation position, intelligent dropout module (6) includes electronic controller module, magnetic flux converter module, mutual-inductor module, magnetic flux converter module passes through magnetic drive mechanism (5), mutual-inductor module through connecting wire in advance respectively with circuit incoming end and circuit output electricity are connected to voltage and phase place's preliminary survey and the real-time detection of voltage and phase place when closing a floodgate when this realizes separating brake.

2. A molded case circuit breaker with voltage detecting function in accordance with claim 1 wherein the bottom surface of the base (1) is provided with three wiring grooves.

3. The molded case circuit breaker with voltage detecting function as claimed in claim 2, wherein the pre-connection line includes three pre-connection sub-lines predetermined with a circuit access terminal, and the starting ends of the three pre-connection sub-lines are connected with respective phase interfaces of the circuit access terminal, respectively.

4. A molded case circuit breaker with voltage detecting function according to claim 3, wherein the transformer module includes three transformer sub-modules opposite to three phases.

5. The molded case circuit breaker with voltage detecting function as claimed in claim 4, wherein the three transformer submodules are respectively connected to ends of the three pre-connection sub-lines.

6. The molded case circuit breaker with voltage detecting function according to claim 2, wherein the three wiring grooves are straight grooves, and the three wiring grooves are arranged in parallel.

7. A molded case circuit breaker with voltage detecting function as claimed in claim 1, wherein the transformer module is connected with the electronic controller module through an analog circuit, and the electronic controller module converts an analog signal of the voltage signal and the phase signal obtained by the transformer module into a digital signal.

8. The molded case circuit breaker with voltage detecting function as recited in claim 1, wherein the electronic controller module is connected with the flux converter module through an analog circuit, thereby instructing the flux converter module to output a corresponding magnetic flux.

9. The molded case circuit breaker with voltage detecting function according to claim 1, wherein the flux transformer drives a draw bar in the transmission mechanism (5) to be displaced by a magnetic flux of the coil.

10. The molded case circuit breaker with voltage detecting function as recited in claim 1, wherein the transformer module is provided in a modular mounting location, the flux transformer module is provided above the transformer module, and the electronic controller module is provided above the flux transformer module;

and a backup protection (7) is also arranged in the modularized mounting position on one side of the intelligent tripping module (6).

Images