CN212517027U

CN212517027U - Permanent magnetic mechanism with double-brake coil

Info

Publication number: CN212517027U
Application number: CN202021041129.4U
Authority: CN
Inventors: 王丹; 张学辉; 宓凤艳
Original assignee: Nissin Hengtong Electric Co Ltd
Current assignee: Nissin Hengtong Electric Co Ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-02-09
Anticipated expiration: 2030-06-05

Abstract

The utility model discloses a two permanent magnetic mechanism that divide brake coil, including the hand dish that divides, hand dish fixed connection is in the one end of guide bar, and the other end of guide bar is fixed with the connector, the iron core has been cup jointed in the guide bar outside, moves the dress of riveting between iron core and the guide bar, it sets up the yoke to move the iron core top, moves and cup joints the separating brake spring on the guide bar of iron core below, and separating brake spring below sets up the lower yoke, be equipped with urgent manual separating brake device on the yoke. The utility model discloses two permanent magnetic mechanism of separating brake coil, local control of separating brake coil, another remote control, the two mutually noninterfere, independent operation, no matter which coil receives the separating brake instruction, can both accomplish the separating brake operation, the invention of two separating brake coil permanent magnetic mechanism, a separating brake coil local control, another separating brake coil remote control, the double-brake system who does not receive time and space restriction has realized the double insurance of indoor permanent magnetism high pressure vacuum circuit breaker operation.

Description

Permanent magnetic mechanism with double-brake coil

Technical Field

The utility model relates to a permanent magnetic mechanism technical field of high voltage circuit breaker specifically is a permanent magnetic mechanism of two brake coils.

Background

At present, in a circuit breaker product operated by a permanent magnetic mechanism, the permanent magnetic mechanism is generally provided with a closing coil and an opening coil in structural design, the closing and opening operation actions of the mechanism are realized by the closing coil and the opening coil, when the circuit breaker has clamping stagnation or other faults in the operation process, the opening coil is overloaded, the opening current is increased, the opening coil is easy to burn, only the local emergency opening is realized, the remote control cannot be realized, and the precious effective time for cutting off a fault power supply can be prolonged by an unattended substation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two permanent magnetic mechanism of brake coil, a local control of separating brake coil, another remote control, the two mutually noninterfere, the independent operation, no matter which coil receives the separating brake instruction, can both accomplish the separating brake operation, two invention of separating brake coil permanent magnetic mechanism, a separating brake coil local control, another separating brake coil remote control, the two system of separating brake who does not receive time and space restriction, realized the dual fail-safe of indoor permanent magnetism high voltage vacuum circuit breaker operation, solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a permanent magnet mechanism of a double-brake coil comprises a hand separating disc, wherein the hand separating disc is fixedly connected to one end of a guide rod, a connector is fixed to the other end of the guide rod, a movable iron core is sleeved on the outer side of the guide rod, the movable iron core and the guide rod are riveted, an upper magnetic yoke is arranged above the movable iron core, a separating brake spring is sleeved on the guide rod below the movable iron core, a lower magnetic yoke is arranged below the separating brake spring, an emergency manual separating brake device is arranged on the upper magnetic yoke, an outer magnetic yoke is connected between the upper magnetic yoke and the lower magnetic yoke, an inner magnetic yoke is arranged between the outer magnetic yoke and the movable iron core, a permanent magnet is arranged between the inner magnetic yoke and the outer magnetic yoke, and a closing and separating brake coil is arranged in an outer.

Preferably, the upper end face of the outer yoke is fixedly connected with the upper yoke through six inner hexagon screws, the lower end face of the outer yoke is fixedly connected with the lower yoke through six inner hexagon screws, and the outer yoke and the inner yoke are riveted through 8 positioning pins.

Preferably, a guide rod is inserted into the movable iron core, and the movable iron core and the guide rod are riveted by an 8-40 elastic cylindrical pin and a 5-40 elastic cylindrical pin.

Preferably, the upper magnetic yoke and the lower magnetic yoke are provided with guide holes.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model relates to a permanent magnetic mechanism of double-brake coil, the opening coil of local control or remote control passes through the opening current, make movable iron core produce ascending electromagnetic drive power, the sum of opening electromagnetic force, opening spring pulling force and the contact pressure of vacuum interrupter on the movable iron core is greater than the holding power of combined floodgate this moment, movable iron core moves to the opening position upwards, movable iron core, upper yoke, outer yoke, permanent magnet and inner yoke form closed magnetic circuit this moment, make reliable actuation of movable iron core in the opening position, double-brake coil permanent magnetic mechanism is equipped with the integrated coil of combined floodgate, a combined floodgate coil and two opening coils, one local control of opening coil, another remote control, the two mutually noninterferes, the independent operation, no matter which coil receives the opening instruction, can both accomplish the opening operation, the invention of double-brake coil permanent magnetic mechanism, an opening coil local control, the other opening coil is remotely controlled, and a double-brake system which is not limited by time and space realizes double insurance of the operation of the indoor permanent magnet high-voltage vacuum circuit breaker.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is the schematic view of the connection structure of the guide bar and the wire harness of the present invention.

In the figure: 1. hand separation; 2. a guide bar; 3. an emergency manual brake-separating device; 4. an upper magnetic yoke; 5. an outer yoke; 6. a permanent magnet; 7. an inner yoke; 8. a movable iron core; 9. switching on and off a brake coil; 10. a brake separating spring; 11. a lower magnetic yoke; 12. a connecting head.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a permanent magnet mechanism of a double-brake coil comprises a hand separating disc 1, the hand separating disc 1 is fixedly connected to one end of a guide rod 2, a connector 12 is fixed to the other end of the guide rod 2, a movable iron core 8 is sleeved outside the guide rod 2, the movable iron core 8 and the guide rod 2 are riveted, an upper magnetic yoke 4 is arranged above the movable iron core 8, a brake separating spring 10 is sleeved on the guide rod 2 below the movable iron core 8, a lower magnetic yoke 11 is arranged below the brake separating spring 10, an emergency manual brake separating device 3 is arranged on the upper magnetic yoke 4, an outer magnetic yoke 5 is connected between the upper magnetic yoke 4 and the lower magnetic yoke 11, an inner magnetic yoke 7 is arranged between the outer magnetic yoke 5 and the movable iron core 8, a permanent magnet 6 is arranged between the inner magnetic yoke 7 and the outer magnetic yoke 5, a brake separating coil 9 is arranged in an outer ring enclosed by the outer magnetic yoke 5, the inner magnetic yoke 7 and the lower magnetic yoke 11, the, the lower end face of an outer yoke 5 is fixedly connected with a lower magnetic yoke 11 through six inner hexagon screws, the outer yoke 5 and an inner yoke 7 are riveted through eight positioning pins, a guide rod 2 is inserted into a movable iron core 8, the movable iron core 8 and the guide rod 2 are riveted through an 8 x 40 elastic cylindrical pin and a 5 x 40 elastic cylindrical pin, a permanent magnet 6 is arranged in an outer ring formed by riveting the outer yoke 5 and the permanent magnet 6 and is fixed through glass cement, guide holes are formed in an upper magnetic yoke 4 and the lower magnetic yoke 11, when a high-voltage vacuum circuit breaker is switched on, a permanent magnet mechanism receives a switching-on control signal, a switching-on coil generates downward electromagnetic driving force through switching-on current, and at the moment, a movable armature at a switching-off position overcomes the permanent magnet retaining force at the switching-off position, the pressure of a switching-off spring 10 and the contact pressure of a vacuum arc extinguishing chamber under the action of the electric power, and moves downwards to the switching-on position, and, The lower magnetic yoke 11, the outer magnetic yoke 5, the permanent magnet 6 and the inner magnetic yoke 7 form a closed magnetic circuit, so that the movable iron core 8 is reliably attracted at a switching-on position to realize switching-on operation, when the high-voltage circuit breaker is switched off, the permanent magnet mechanism receives a switching-off control signal, a local control or remote control switching-off coil generates upward electromagnetic driving force for the movable iron core 8 through switching-off current, the sum of the switching-off electromagnetic force on the movable iron core 8, the pulling force of a switching-off spring 10 and the contact pressure of a vacuum arc-extinguishing chamber is greater than the holding force of switching-on, the movable iron core 8 moves upwards to the switching-off position, the movable iron core 8, the upper magnetic yoke 4, the outer magnetic yoke 5, the permanent magnet 6 and the inner magnetic yoke 7 form the closed magnetic circuit, so that the movable iron core 8 is reliably attracted at the switching-off position, the double-brake-off coil permanent magnet mechanism is provided with, the two coils are mutually noninterfere and independently operate, and the switching-off operation can be finished no matter which coil receives a switching-off instruction.

In summary, the following steps: the utility model discloses a permanent magnetic mechanism of double-brake coil, the separating brake coil of local control or remote control passes through the separating brake electric current, make movable iron core 8 produce ascending electromagnetic drive power, the separating brake electromagnetic force on the movable iron core 8 this moment, the total sum of separating brake spring 10 pulling force and vacuum interrupter's contact pressure is greater than the holding power of combined floodgate, movable iron core 8 moves up to the separating brake position, movable iron core 8, upper yoke 4, outer yoke 5, permanent magnet 6 and inner yoke 7 form closed magnetic circuit this moment, make the reliable actuation of movable iron core 8 in the separating brake position, double-brake coil permanent magnetic mechanism is equipped with the integrative coil of combined and separated floodgate, a combined floodgate coil and two separating brake coils, a local control of separating brake coil, another remote control, the two are mutually noninterfered, independent operation, no matter which coil receives the separating brake instruction, can both accomplish the separating brake operation, the invention of double-brake coil permanent magnetic, one opening coil is controlled locally, the other opening coil is controlled remotely, and a double-brake system which is not limited by time and space realizes double insurance of the operation of the indoor permanent magnet high-voltage vacuum circuit breaker.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a two permanent magnetic mechanism of brake coil, includes hand dish (1), its characterized in that: the hand plate (1) is fixedly connected with one end of the guide rod (2), the other end of the guide rod (2) is fixedly provided with a connector (12), the movable iron core (8) is sleeved on the outer side of the guide rod (2), the movable iron core (8) and the guide rod (2) are riveted, an upper magnetic yoke (4) is arranged above the movable iron core (8), a brake separating spring (10) is sleeved on the guide rod (2) below the movable iron core (8), a lower magnetic yoke (11) is arranged below the brake separating spring (10), the emergency manual brake separating device is arranged on the upper magnetic yoke (4), an outer magnetic yoke (5) is connected between the upper magnetic yoke (4) and the lower magnetic yoke (11), an inner magnetic yoke (7) is arranged between the outer magnetic yoke (5) and the movable iron core (8), a permanent magnet (6) is arranged between the inner magnetic yoke (7) and the outer magnetic yoke (5), and a brake closing coil (9) is arranged in an outer ring enclosed among the outer magnetic yoke (5), the inner magnetic yoke (7) and the lower magnetic yoke (11).

2. The permanent magnet mechanism of a double-brake coil as claimed in claim 1, wherein: the upper end face of the outer yoke (5) is fixedly connected with the upper magnetic yoke (4) through six inner hexagon screws, the lower end face of the outer yoke (5) is fixedly connected with the lower magnetic yoke (11) through six inner hexagon screws, and the outer yoke (5) and the inner yoke (7) are riveted through 8 positioning pins.

3. The permanent magnet mechanism of a double-brake coil as claimed in claim 1, wherein: the movable iron core (8) is internally provided with a guide rod (2) in an inserting way, and the movable iron core (8) and the guide rod (2) are riveted by an 8-by-40 elastic cylindrical pin and a 5-by-40 elastic cylindrical pin.

4. The permanent magnet mechanism of a double-brake coil as claimed in claim 1, wherein: and guide holes are formed in the upper magnetic yoke (4) and the lower magnetic yoke (11).