CN111816515A

CN111816515A - Intelligent cut-off control circuit breaker

Info

Publication number: CN111816515A
Application number: CN202010788236.1A
Authority: CN
Inventors: 李其利; 陈响宇; 施亦俊; 施亦豪
Original assignee: Zhejiang Guoxin Huawei Communication Technology Co ltd
Current assignee: Zhejiang Guoxin Huawei Communication Technology Co., Ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2020-10-23

Abstract

The invention discloses an intelligent cut-off management and control circuit breaker, which comprises a circuit breaker body, wherein the circuit breaker body is of a rectangular structure, a plurality of power supply end wiring ports are arranged at the upper end of the circuit breaker body, a plurality of load end wiring ports are arranged at the lower end of the circuit breaker body, and the power supply end wiring ports and the load end wiring ports are symmetrically arranged; the left end of the lower end face of the circuit breaker body is provided with a communication port and a signal receiving and transmitting port; the middle part of the front end surface of the circuit breaker body is provided with a linkage handle, and the front end surface of the circuit breaker body is fixedly provided with a pulse signal indicating lamp, a state indicating lamp and a change-over switch at the left end position of the linkage handle; the breaker is characterized in that an electronic control panel, a gateway device, a manganin shunt, a zero sequence current transformer and a transmission mechanism are arranged in the breaker body. Above-mentioned technical scheme, structural design is reasonable, the wiring is convenient, job stabilization, not fragile, long service life and practicality are good.

Description

Intelligent cut-off control circuit breaker

Technical Field

The invention relates to the technical field of circuit breakers, in particular to an intelligent cut-off control circuit breaker.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time.

The existing circuit breaker structure has the disadvantages that: the structure design is unreasonable, the existing circuit breaker is designed to be lengthened at one end, or the wire inlet end is lengthened, or the wire outlet end is lengthened, so that the inner routing of a product is extruded at one end, and the wire is easy to be mistaken; when the distribution box is installed, the wire inlet end is not easy to wire or the wire outlet end is not easy to wire when the wire with a larger sectional area is connected; in addition, the existing circuit breaker transmission mechanism is unstable in work, easy to damage, short in service life and poor in practicability.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the intelligent cut-off management and control circuit breaker which is reasonable in structural design, convenient to wire, stable in work, not prone to damage, long in service life and good in practicability.

In order to achieve the purpose, the invention provides the following technical scheme: an intelligent cut-off management and control circuit breaker comprises a circuit breaker body, wherein the circuit breaker body is of a rectangular structure, a plurality of power supply end wiring ports are formed in the upper end of the circuit breaker body, a plurality of load end wiring ports are formed in the lower end of the circuit breaker body, and the power supply end wiring ports and the load end wiring ports are symmetrically arranged; the left end of the lower end face of the circuit breaker body is provided with a communication port and a signal receiving and transmitting port; the middle part of the front end surface of the circuit breaker body is provided with a linkage handle, and the front end surface of the circuit breaker body is fixedly provided with a pulse signal indicating lamp, a state indicating lamp and a change-over switch at the left end position of the linkage handle; the breaker is characterized in that an electronic control panel, a gateway device, a manganin shunt, a zero sequence current transformer and a transmission mechanism are arranged in the breaker body.

The invention is further configured to: the transmission mechanism comprises a driving motor, a worm wheel, a transmission wheel, a linkage wheel, a square linkage shaft, a trip rod, a switch-on position detection switch and a switch-off position detection switch, a motor shaft of the driving motor is fixedly connected with the worm, the worm and the worm wheel are in meshing transmission, the worm wheel is in meshing transmission with the transmission wheel, the transmission wheel is in meshing transmission with the linkage wheel, a square central hole is formed in the linkage wheel, one end of the square linkage rod is fixedly connected with the square central hole in an inserting mode, and the other end of the square linkage rod is fixedly connected with a linkage handle.

The invention is further configured to: the tripping device is characterized in that a tripping shaft, a lock catch, a tripping buckle and a contact are arranged on the tripping rod, the tripping shaft and the tripping rod are integrally arranged, and the lock catch is engaged with a buckling surface of the tripping buckle in a closing process.

The invention is further configured to: when the tripping action is performed, the tripping shaft drives the lock catch to move, and when the lock catch moves to be loosened with the snap-in surface of the jump buckle, the breaker realizes quick tripping to be disconnected.

The invention is further configured to: the end face of one end of the driving wheel is integrally provided with a limiting boss and half small teeth, and the end face of the other end of the driving wheel is integrally provided with a tripping boss.

The invention is further configured to: the switch-on position detection switch and the switch-off position detection switch are both arranged close to the limit boss, and the limit boss is driven to be in contact with the switch-on position detection switch or the switch-off position detection switch when the driving wheel rotates.

The invention has the advantages that: compared with the prior art, the structure of the invention is more reasonable, the power end wiring port and the load end wiring port are symmetrically arranged, when in assembly, the wires are easy to be arranged inside the circuit breaker, and the wiring personnel are connected with the wires, and the wires are easy to be arranged when in and out, so that the use is convenient; in the closing process, the buckling surface of the lock catch and the tripping buckle is occluded, so that the lock catch cannot be tripped; when the intelligent control is carried out on the brake-separating action, the tripping shaft drives the lock catch to move, when the lock catch moves to be loosened with the snap-in surface of the trip catch, the circuit breaker is rapidly tripped and disconnected, the lock catch and the trip catch are mutually tripped and opened, namely, in a free tripping state, if the linkage handle is manually operated to close the circuit in the brake-separating state, the lock catch and the trip catch are in a separated free tripping state and cannot be normally closed, and external operation cannot damage the internal mechanism of the circuit breaker. The structure design is reasonable, the wiring is convenient, the work is stable, the damage is not easy, the service life is long, and the practicability is good.

The invention is further described with reference to the drawings and the specific embodiments in the following description.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a side perspective view of an embodiment of the present invention;

FIG. 3 is a partial schematic view of an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a transmission mechanism according to an embodiment of the present invention;

FIG. 6 is an assembly view of a square linkage shaft and a linkage wheel according to an embodiment of the present invention;

FIG. 7 is an assembly schematic view of a square linkage shaft, linkage wheels and a linkage handle according to an embodiment of the invention;

fig. 8 is a schematic structural diagram of a closing state of the tripping mechanism according to the embodiment of the invention;

fig. 9 is a schematic structural diagram of an opening state of the tripping mechanism according to the embodiment of the invention;

fig. 10 is a schematic structural diagram of a zero sequence current transformer according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a front surface of a driving wheel according to an embodiment of the present invention;

fig. 12 is a schematic structural view of the reverse side of the transmission wheel in the embodiment of the invention.

Detailed Description

In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 12, the intelligent disconnection control circuit breaker disclosed by the invention comprises a circuit breaker body 1, wherein the circuit breaker body 1 is of a rectangular structure, a plurality of power supply end wiring ports 11 are arranged at the upper end of the circuit breaker body 1, a plurality of load end wiring ports 12 are arranged at the lower end of the circuit breaker body 1, and the power supply end wiring ports 11 and the load end wiring ports 12 are symmetrically arranged; the left end of the lower end face of the circuit breaker body 1 is provided with a communication port 13 and a signal receiving and transmitting port 14; a linkage handle 2 is arranged in the middle of the front end face of the circuit breaker body 1, and a pulse signal indicator lamp 3, a state indicator lamp 4 and a change-over switch 5 are fixedly arranged at the left end position of the linkage handle 2 on the front end face of the circuit breaker body 1; an electronic control board 6, a gateway device 7, a manganin shunt 8, a zero sequence current transformer 9 and a transmission mechanism 10 are arranged in the circuit breaker body 1.

Preferably, the transmission mechanism 10 includes a driving motor 101, a worm 102, a worm wheel 103, a transmission wheel 104, a linkage wheel 105, a square linkage shaft 106, a trip bar 107, a closing position detection switch 108 and a separating position detection switch 109, a motor shaft of the driving motor 101 is fixedly connected with the worm 102, the worm 102 is in meshing transmission with the worm wheel 103, the worm wheel 103 is in meshing transmission with the transmission wheel 104, the transmission wheel 104 is in meshing transmission with the linkage wheel 105, a square central hole is formed in the linkage wheel 105, one end of the square linkage bar 106 is fixedly inserted into the square central hole, and the other end of the square linkage bar 106 is fixedly connected with the linkage handle 2.

The trip bar 107 is provided with a trip shaft 11, a lock catch 12, a trip catch 13 and a contact 14, the trip shaft 11 and the trip bar 107 are integrally arranged, and the lock catch 12 is engaged with the buckling surface of the trip catch 13 in the closing process.

When the brake is opened, the trip shaft 11 drives the lock catch 12 to move, and when the lock catch 12 moves to be loosened with the meshed surface of the trip catch 13, the breaker is quickly tripped to be disconnected.

The end face of one end of the driving wheel 104 is integrally provided with a limit boss 1041 and a half-part small tooth 1042, and the end face of the other end of the driving wheel 104 is integrally provided with a tripping boss 1043.

The closing position detection switch 108 and the opening position detection switch 109 are both arranged close to the limit boss 1041, and the limit boss 1041 is driven to contact with the closing position detection switch 108 or the opening position detection switch 109 when the driving wheel 104 rotates.

The manganin shunt 8 is arranged on the power supply side and used for collecting current data, and the zero sequence current transformer 9 is arranged on the load side and used for collecting leakage current data; if the manganin shunt 8 is arranged on the load side, the power supply part of the electronic control board 6 still has electricity when the circuit is disconnected, and the electricity can enter the load side through the manganin shunt 8, so that the personal safety is seriously threatened, and the anti-interference performance of the circuit breaker is influenced.

In actual application, the power supply end wiring port and the load end wiring port are symmetrically arranged, wiring is easy to run in the circuit breaker during assembly, wiring personnel access wires, wiring is easy to run when wires are fed in and out, and the circuit breaker is convenient to use;

when the circuit breaker is in intelligent control closing action, the external linkage handle synchronously rotates to close the circuit through the rotating thrust of the square linkage shaft in the linkage wheel, the three parts rotate along a central axis, the lock catch and the tripping buckle surface are normally meshed and contacted at the moment, and the circuit breaker cannot be tripped in the closing process. When the intelligent control brake-separating action is carried out, the driving wheel rotates, the tripping boss props against the sliding surface on the tripping rod to slide in the rotating process of the driving wheel, so that the tripping rod rotates around the positioning circle center of the tripping rod, the tripping shaft on the tripping rod drives the lock catch to move, and when the lock catch moves to be loosened with the snap-fastener occlusal surface, the circuit breaker mechanism realizes quick tripping and is disconnected; the inner lock catch and the tripping buckle are in a separated free tripping state and cannot be normally closed when the linkage handle is manually operated by manpower to close the circuit in a switching-off state, and the internal mechanism of the circuit breaker cannot be damaged by external operation.

The invention has the advantages of reasonable structural design, convenient wiring, stable work, difficult damage, long service life and good practicability.

The above embodiments are described in detail for the purpose of further illustrating the present invention and should not be construed as limiting the scope of the present invention, and the skilled engineer can make insubstantial modifications and variations of the present invention based on the above disclosure.

Claims

1. The utility model provides an intelligence management and control circuit breaker that opens, includes circuit breaker body (1), its characterized in that: the circuit breaker comprises a circuit breaker body (1), wherein the circuit breaker body (1) is of a rectangular structure, a plurality of power supply end wiring ports (11) are formed in the upper end of the circuit breaker body (1), a plurality of load end wiring ports (12) are formed in the lower end of the circuit breaker body (1), and the power supply end wiring ports (11) and the load end wiring ports (12) are symmetrically arranged; the left end of the lower end face of the circuit breaker body (1) is provided with a communication port (13) and a signal receiving and transmitting port (14); a linkage handle (2) is arranged in the middle of the front end face of the circuit breaker body (1), and a pulse signal indicator lamp (3), a state indicator lamp (4) and a change-over switch (5) are fixedly arranged at the left end position of the linkage handle (2) on the front end face of the circuit breaker body (1); the circuit breaker is characterized in that an electronic control board (6), a gateway device (7), a manganin shunt (8), a zero sequence current transformer (9) and a transmission mechanism (10) are arranged in the circuit breaker body (1).

2. The intelligent breaking management and control circuit breaker according to claim 1, characterized in that: the transmission mechanism (10) comprises a driving motor (101), a worm (102), a worm wheel (103), a transmission wheel (104), a linkage wheel (105), a square linkage shaft (106), a trip rod (107), a closing position detection switch (108) and a separating position detection switch (109), a motor shaft of the driving motor (101) is fixedly connected with the worm wheel (102), the worm wheel (102) is in meshing transmission with the worm wheel (103), the worm wheel (103) is in meshing transmission with the transmission wheel (104), the transmission wheel (104) is in meshing transmission with the linkage wheel (105), a square central hole is formed in the linkage wheel (105), one end of the square linkage rod (106) is fixedly connected with the square central hole in an inserting mode, and the other end of the square linkage rod (106) is fixedly connected with a linkage handle (2).

3. The intelligent breaking management and control circuit breaker according to claim 2, characterized in that: the trip shaft (11), the lock catch (12), the trip buckle (13) and the contact (14) are arranged on the trip rod (107), the trip shaft (11) and the trip rod (107) are integrally arranged, and the lock catch (12) is meshed with the buckling surface of the trip buckle (13) in the closing process.

4. The intelligent breaking management and control circuit breaker according to claim 3, characterized in that: when the brake is opened, the trip shaft (11) drives the lock catch (12) to move, and when the lock catch (12) moves to be loosened with the meshed surface of the trip buckle (13), the breaker realizes quick tripping to break.

5. The intelligent breaking management and control circuit breaker according to claim 3 or 4, characterized in that: the end face of one end of the driving wheel (104) is integrally provided with a limiting boss (1041) and half-part small teeth (1042), and the end face of the other end of the driving wheel (104) is integrally provided with a tripping boss (1043).

6. The intelligent breaking management and control circuit breaker according to claim 5, characterized in that: the closing position detection switch (108) and the opening position detection switch (109) are arranged close to the limit boss (1041), and the limit boss (1041) is driven to be in contact with the closing position detection switch (108) or the opening position detection switch (109) when the driving wheel (104) rotates.