CN207233650U

CN207233650U - A kind of vacuum interrupter

Info

Publication number: CN207233650U
Application number: CN201721283595.1U
Authority: CN
Inventors: 张永前; 张力; 林琦钞
Original assignee: Chengdu Min Da Power Equipment Co Ltd
Current assignee: Chengdu Min Da Power Equipment Co Ltd
Priority date: 2017-09-30
Filing date: 2017-09-30
Publication date: 2018-04-13
Anticipated expiration: 2027-09-30

Abstract

The utility model discloses a kind of vacuum interrupter, belong to technical field of electric equipment, including ceramic shell, it is coaxial in ceramic shell and be disposed with static side mechanism and moved end mechanism from top to bottom；Magnetic pole pushing mechanism has been fixedly connected with static side mechanism and moved end mechanism；Magnetic pole pushing mechanism includes insulation fixed frame, cored and the first motor mount is set on insulation fixed frame, conductive coil is wound with outside iron core, is provided with the first motor on the first motor mount, the coil in the first motor is connected with conductive coil and forms closed circuit；The utility model magnetic pole pushing mechanism substitutes original operating mechanism and insulated tension pole so that vacuum interrupter simplifies the structure；Due to being attracting each other between magnetic pole, so the presence for solving the problems, such as the weight of original insulated tension pole causes the speed of divide-shut brake to be restricted.

Description

A kind of vacuum interrupter

Technical field

The utility model belongs to technical field of electric equipment, and in particular to a kind of vacuum interrupter.

Background technology

Vacuum interrupter, also known as vacuum switch tube, are the core components of mesohigh power switch, its main function is to lead to Crossing the excellent insulating properties of vacuum in pipe makes after mesohigh circuitry cuts power supply that rapid blow-out and electric current can be suppressed, and avoids accident and meaning Outer generation, is mainly used in the transmission ＆ distribution electric control system of electric power, is also applied to metallurgy, mine, oil, chemical industry, railway, wide Broadcast, communicate, the distribution system such as industrial high-frequency heating.With energy saving, section material, fire prevention, explosion-proof, small, long lifespan, maintenance cost The features such as low, reliable and pollution-free.Vacuum interrupter is divided into arc extinguishing chamber for breaker again from purposes and on-load switch is used Arc-chutes, arc-extinguishing chamber of circuit breaker are mainly used for substation and electrical network facilities in power department, and on-load switch arc-chutes are main Terminal user for power grid.

Static contact and moving contact i.e. the first contact and the second contact are provided with existing vacuum interrupter along the vertical direction, its Middle moving contact is connected by moving conductive rod with insulated tension pole, and the other end of insulated tension pole is connected with operating mechanism, in operating mechanism Under the action of, insulated tension pole drives moving conductive rod to move up and down and realizes being contacting and separating for dynamic and static contact, so as to fulfill breaker Divide-shut brake；But this branch wire time is usually several milliseconds, since insulated tension pole has certain weight so result in Divide-shut brake speed is restricted and sets operating mechanism and insulated tension pole causes the complicated of vacuum interrupter.

Utility model content

The purpose of this utility model is that being restricted for current vacuum interrupter there are divide-shut brake speed and structure is answered The problem of miscellaneous, the utility model provide a kind of vacuum interrupter.

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

A kind of vacuum interrupter, including ceramic shell, it is coaxial in ceramic shell and be disposed with static side machine from top to bottom Structure and moved end mechanism；Magnetic pole pushing mechanism has been fixedly connected with static side mechanism and moved end mechanism；

Magnetic pole pushing mechanism includes insulation fixed frame, and cored and the first motor mount, iron are set on the fixed frame that insulate Conductive coil is wound with outside core, is provided with the first motor on the first motor mount, coil and conductive coil in the first motor Connection and formation closed circuit.

Further limit, the static side mechanism includes being arranged at the static side conducting rod that in ceramic shell and is fixedly connected and quiet Contact is held, static side conducting block, static side conducting block and the static side conducting rod are provided with the outside of the ceramic shell upper surface It is fixedly connected, the insulation fixed frame is fixedly connected with the static side contact.

Further limit, the moved end mechanism includes being coaxially disposed with the static side mechanism and being arranged at the ceramic shell Interior moved end contact, is provided with moved end cover board on the outside of the ceramic shell lower face, and moved end contact is connected with moved end conduction Bar, moved end conducting rod one end are connected with also cross the ceramic shell and moved end cover board, the ceramic shell lower face inner side Bellows, bellows are tightly connected with moved end conduction rod outer surface, on the inside of the ceramic shell lower face on the moved end contact It is fixedly connected with the insulation fixed frame and the second motor.

Further limit, the static side mechanism includes being arranged at the static side conducting rod that in ceramic shell and is fixedly connected and quiet Contact is held, static side conducting block, static side conducting block and the static side conducting rod are provided with the outside of the ceramic shell upper surface It is fixedly connected；Being interference fitted outside the static side conducting rod has static side retainer ring, and the insulation is fixedly connected with static side retainer ring Fixed frame.

Further limit, the moved end mechanism includes being coaxially disposed with the static side mechanism and being arranged at the ceramic shell Interior moved end contact, is provided with moved end cover board on the outside of the ceramic shell lower face, and moved end contact is connected with moved end conduction Bar, moved end conducting rod one end are connected with also cross the ceramic shell and moved end cover board, the ceramic shell lower face inner side Bellows, bellows are tightly connected with moved end conduction rod outer surface；Moved end conducting rod is arranged at mistake outside the part in ceramic shell It is full of and is combined with moved end retainer ring, the insulation fixed frame and the 3rd motor is fixedly connected with the retainer ring of moved end.

Further limit, insulating cylinder, the equal coaxial sleeve of the static side mechanism and moved end mechanism are provided with the ceramic shell In insulating cylinder.

In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are：

1. substitute original operating mechanism and insulated tension pole with magnetic pole pushing mechanism so that the structure of vacuum interrupter is simple Change.

2. when needing static side mechanism and moved end mechanism contacts, start the first motor of each magnetic pole pushing mechanism, make Obtain the magnetization of the iron core on iron core and moved end mechanism in static side mechanism and produce the magnetic pole to attract each other, pushed away so driving with magnetic pole The moved end mechanism that motivation structure is fixedly connected moves up and realizes and be powered with static side mechanism contacts；When needing static side mechanism and moved end When mechanism separates, one of them first motor is closed so that the magnetic force for the iron core being connected with this first motor disappears, so as to fulfill Want the separation of static side mechanism and moved end mechanism.

3. two iron cores being magnetized can be strengthened when insulation fixed frame is respectively arranged on static side contact and moved end contact Between stabilization attraction so that static side contact and moved end contact can be steadily contacted；Second is also equipped with the contact of moved end Motor, can start the second motor and simultaneously switch off original first motor so that iron core is magnetized to opposite magnetic pole, it is therefore provided that Static side contact and moved end contact are quickly separated due to same pole.

4. insulation fixed frame is respectively arranged in static side retainer ring and moved end retainer ring, moved end conducting rod, quiet is avoided Influence of the magnetic field that end conducting rod, static side contact and moved end contact produce after being powered to two core magnetic poles, ensures that two The stability of a core magnetic pole.

5. the setting of insulating cylinder ensure that smog pollution ceramics are outer caused by static side contact and moved end contact part The inner wall of shell, causes the decreasing insulating of ceramic shell.

Brief description of the drawings

The utility model will illustrate by example and with reference to the appended drawing,

Fig. 1 is the structure diagram of the utility model；

Fig. 2 is the structure diagram of vacuum interrupter in embodiment three；

Fig. 3 is the structure diagram of magnetic pole pushing mechanism；

Wherein：1- ceramic shells；2- static side conducting blocks；3- static side conducting rods；4- insulating cylinders；5- static side contacts；6- moved ends Contact；7- bellowss；8- moved ends cover board；9- moved ends conducting rod；10- static side retainer rings；11- moved ends retainer ring；12- magnetic poles push away Motivation structure；1201- insulation fixed frames；1202- iron cores；The first motor mounts of 1203-；1204- conductive coils；1205- first Motor；13- static sides mechanism；14- moved ends mechanism.

Embodiment

All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive Feature and/or step beyond, can combine in any way.Elaborate below in conjunction with the accompanying drawings to the utility model.

Embodiment one

The technical solution of the present embodiment is：A kind of vacuum interrupter, including ceramic shell 1, it is coaxial in ceramic shell 1 and from Top to bottm is disposed with static side mechanism 13 and moved end mechanism 14；Magnetic has been fixedly connected with static side mechanism 13 and moved end mechanism 14 Pole pushing mechanism 12；

Magnetic pole pushing mechanism 12 includes insulation fixed frame 1201, and cored 1202 and first are set on the fixed frame 1201 that insulate Motor mount 1203, iron core 1202 are wound with conductive coil 1204 outside, and the first electricity is provided with the first motor mount 1203 Machine 1205, the coil in the first motor 1205 are connected with conductive coil 1204 and form closed circuit.

As shown in Figs. 1-3, the insulation fixed frame 1201 of two magnetic pole pushing mechanisms 12 is respectively arranged in static side mechanism 13 In moved end mechanism 14, start respective first motor 1205 of two magnetic pole pushing mechanisms 12 and cause two magnetic pole pushing mechanisms Opposite electric current is passed through in 12 respective conductive coils 1204, hence in so that two 12 respective iron cores of magnetic pole pushing mechanism 1202, which are magnetized, to form the magnetic pole to attract each other, the iron core 1202 for the magnetic pole pushing mechanism 12 being fixedly connected with moved end mechanism 14 It is subject to the attraction of the iron core 1202 for the magnetic pole pushing mechanism 12 that static side mechanism 13 is fixedly connected so that moved end mechanism 14 and solid therewith Surely the magnetic pole pushing mechanism 12 connected is moved to static side mechanism 13 finally to be realized with static side mechanism 13 rigid contact and closes a floodgate；Will when dividing During separating brake, it is only necessary to disconnect the first motor of the magnetic pole pushing mechanism 12 being connected with static side mechanism 13 or moved end mechanism 14 so that The magnetic disappearance of the iron core 1202 for the magnetic pole pushing mechanism 12 being connected with static side mechanism 13 or moved end mechanism 14, so that static side Separating brake process is implemented separately in mechanism 13 and moved end mechanism 14；Original operating mechanism and insulation is substituted to draw with magnetic pole pushing mechanism 12 Bar so that vacuum interrupter simplifies the structure；Due to being attracting each other between magnetic pole, so solve original insulation The problem of presence of the weight of pull rod causes the speed of divide-shut brake to be restricted.

Embodiment two

On the basis of embodiment one, the technical solution of the present embodiment is：The static side mechanism 13 includes being arranged at ceramics In shell 1 and the static side conducting rod 3 and static side contact 5 that are fixedly connected, it is provided with the outside of 1 upper surface of ceramic shell Static side conducting block 2, static side conducting block 2 are fixedly connected with the static side conducting rod 3, are fixedly connected on the static side contact 5 State insulation fixed frame 1201.

The moved end mechanism 14 includes the moved end for being coaxially disposed and being arranged in the ceramic shell 1 with the static side mechanism Contact 6, moved end cover board 8 is provided with the outside of 1 lower face of ceramic shell, and moved end contact 6 is connected with moved end conducting rod 9, Conducting rod 9 one end in moved end is connected with also cross the ceramic shell 1 and moved end cover board 8,1 lower face of the ceramic shell inner side Bellows 7, bellows 7 are tightly connected with 9 outer surface of moved end conducting rod, and the moved end is touched on the inside of 1 lower face of ceramic shell Insulation 1201 and second motor of fixed frame is fixedly connected with first 6.

As shown in Figs. 1-3, the insulation fixed frame 1201 of two magnetic pole pushing mechanisms 12 is respectively arranged in 5 He of static side contact On moved end contact 6, start respective first motor 1205 of two magnetic pole pushing mechanisms 12 and cause two magnetic pole pushing mechanisms 12 Opposite electric current is passed through in respective conductive coil 1204, hence in so that the respective iron core 1202 of two magnetic pole pushing mechanisms 12 Be magnetized the magnetic pole to be formed and attracted each other, and the iron core 1202 of the magnetic pole pushing mechanism 12 being fixedly connected with moved end contact 6 is subject to quiet The attraction of the iron core 1202 for the magnetic pole pushing mechanism 12 that end contact 5 is fixedly connected so that moved end contact 6 and moved end conducting rod 9 exist The magnetic pole pushing mechanism 12 being fixedly connected with moved end contact 6 is moved to static side contact 5 and finally realized with 5 rigid contact of static side contact Close a floodgate；When point want separating brake, it is only necessary to the first motor of the magnetic pole pushing mechanism 12 that disconnection is connected with moved end contact 6 and open at the same time Dynamic second motor so that the iron core 1202 for the magnetic pole pushing mechanism 12 that moved end contact 6 connects is magnetized to what is be connected with static side contact 5 The identical magnetic pole of the iron core 1202 of magnetic pole pushing mechanism 12, so that static side contact 5 and moved end contact 6 are implemented separately quick point Lock process.

It can strengthen two on static side contact 5 and moved end contact 6 when insulation fixed frame 1201 is respectively arranged in and be magnetized Stabilization attraction between iron 1201 so that static side contact 5 and moved end contact 6 can be steadily contacted；On moved end contact 6 also Second motor is installed, the second motor can be started and simultaneously switch off original first motor so that iron core is magnetized to opposite magnetic Pole, it is therefore provided that static side contact 5 and moved end contact 6 have same pole and quickly separate.

Embodiment three

On the basis of embodiment one, the technical solution of the present embodiment is：The static side mechanism 13 includes being arranged at ceramics In shell 1 and the static side conducting rod 3 and static side contact 5 that are fixedly connected, it is provided with the outside of 1 upper surface of ceramic shell Static side conducting block 2, static side conducting block 2 are fixedly connected with the static side conducting rod 3；Being interference fitted outside the static side conducting rod 3 has Static side retainer ring 10, the insulation fixed frame 1201 is fixedly connected with static side retainer ring 10.

The moved end mechanism 14 includes the moved end for being coaxially disposed and being arranged in the ceramic shell 1 with the static side mechanism Contact 6, moved end cover board 8 is provided with the outside of 1 lower face of ceramic shell, and moved end contact 6 is connected with moved end conducting rod 9, Conducting rod 9 one end in moved end is connected with also cross the ceramic shell 1 and moved end cover board 8,1 lower face of the ceramic shell inner side Bellows 7, bellows 7 are tightly connected with 9 outer surface of moved end conducting rod；The part moved end conducting rod 9 being arranged in ceramic shell 1 Outer interference fit has moved end retainer ring 11, and 1201 and the 3rd electricity of insulation fixed frame is fixedly connected with moved end retainer ring 11 Machine.

As shown in Figs. 1-3, the insulation fixed frame 1201 of two magnetic pole pushing mechanisms 12 is respectively arranged in static side retainer ring 10 and moved end retainer ring 11 on, start respective first motor 1205 of two magnetic pole pushing mechanisms 12 and two magnetic poles promoted Opposite electric current is passed through in the respective conductive coil 1204 of mechanism 12, hence in so that two 12 respective iron of magnetic pole pushing mechanism Core 1202 is magnetized the magnetic pole to be formed and attracted each other, the iron core for the magnetic pole pushing mechanism 12 being fixedly connected with moved end retainer ring 11 1202 are subject to the attraction of the iron core 1202 for the magnetic pole pushing mechanism 12 that static side retainer ring 10 is fixedly connected so that moved end conducting rod 9 Moved finally and static side to static side contact 5 in the magnetic pole pushing mechanism 12 being fixedly connected with moved end retainer ring 11 with moved end contact 6 5 rigid contact of contact, which is realized, to close a floodgate；When point want separating brake, it is only necessary to the magnetic pole pushing mechanism that disconnection is connected with moved end retainer ring 11 12 the first motor 1205 and at the same time the 3rd motor of startup so that the iron core for the magnetic pole pushing mechanism 12 that moved end retainer ring 11 connects 1202 are magnetized to the magnetic pole identical with the iron core 1202 for the magnetic pole pushing mechanism 12 that static side retainer ring 10 connects, so that quiet Quick acting switching-off process is implemented separately in end contact 5 and moved end contact 6；Insulation fixed frame 1201 is respectively arranged in static side retainer ring 10 and moved end retainer ring 11 on, avoid moved end conducting rod 9, static side conducting rod 3, static side contact 5 and moved end contact 6 produce after being powered Influence of the raw magnetic field to two 1201 magnetic poles of iron core, ensures that the stability of two 1201 magnetic poles of iron core.

Example IV

On the basis of embodiment one, the technical solution of the present embodiment is：Insulating cylinder 4 is provided with the ceramic shell 1, The 14 equal coaxial sleeve of static side mechanism 13 and moved end mechanism is arranged in insulating cylinder 4.

As shown in Figs. 1-3, the setting of insulating cylinder 4 ensure that cigarette caused by 6 contact portion of static side contact 5 and moved end contact Mist pollutes the inner wall of ceramic shell 1, causes the decreasing insulating of ceramic shell 1.

Claims

A kind of 1. vacuum interrupter, it is characterised in that including ceramic shell (1), it is coaxial in ceramic shell (1) and from top to bottom according to It is secondary to be provided with static side mechanism (13) and moved end mechanism (14)；Magnetic has been fixedly connected with static side mechanism (13) and moved end mechanism (14) Pole pushing mechanism (12)；

Magnetic pole pushing mechanism (12) includes insulation fixed frame (1201), set in insulation fixed frame (1201) cored (1202) and First motor mount (1203), is wound with conductive coil (1204) outside iron core (1202), on the first motor mount (1203) It is provided with the first motor (1205), the coil in the first motor (1205), which is connected and is formed with conductive coil (1204), to be closed back Road.
2. a kind of vacuum interrupter according to claim 1, it is characterised in that the static side mechanism (13) includes being arranged at In ceramic shell (1) and the static side conducting rod (3) and static side contact (5) that are fixedly connected, through the ceramic shell (1) upper surface Outside is provided with static side conducting block (2), and static side conducting block (2) is fixedly connected with the static side conducting rod (3), the static side contact (5) the insulation fixed frame (1201) is fixedly connected with.
3. according to a kind of vacuum interrupter described in 1 or 2 any one of claim, it is characterised in that the moved end mechanism (14) include being coaxially disposed with the static side mechanism and being arranged at the moved end contact (6) in the ceramic shell (1), through described Moved end cover board (8) is provided with the outside of ceramic shell (1) lower face, moved end contact (6) is connected with moved end conducting rod (9), and moved end is led Electric pole (9) one end is also cross the ceramic shell (1) and moved end cover board (8), ceramic shell (1) lower face inner side connection There is bellows (7), bellows (7) is tightly connected with moved end conducting rod (9) outer surface, is fixedly connected on the moved end contact (6) There are the insulation fixed frame (1201) and the second motor.
4. a kind of vacuum interrupter according to claim 1, it is characterised in that the static side mechanism (13) includes being arranged at In ceramic shell (1) and the static side conducting rod (3) and static side contact (5) that are fixedly connected, through the ceramic shell (1) upper surface Outside is provided with static side conducting block (2), and static side conducting block (2) is fixedly connected with the static side conducting rod (3)；The static side is conductive Bar (3) is interference fitted outside static side retainer ring (10), and the insulation fixed frame is fixedly connected with static side retainer ring (10) (1201)。
5. according to a kind of vacuum interrupter described in 1 or 4 any one of claim, it is characterised in that the moved end mechanism (14) include being coaxially disposed with the static side mechanism and being arranged at the moved end contact (6) in the ceramic shell (1), through described Moved end cover board (8) is provided with the outside of ceramic shell (1) lower face, moved end contact (6) is connected with moved end conducting rod (9), and moved end is led Electric pole (9) one end is also cross the ceramic shell (1) housing and moved end cover board (8), ceramic shell (1) the lower face inner side Bellows (7) is connected with, bellows (7) is tightly connected with moved end conducting rod (9) outer surface；Moved end conducting rod (9) is arranged at pottery Interference fit has moved end retainer ring (11) outside part in ceramic shell (1), is fixedly connected with moved end retainer ring (11) described exhausted Edge fixed frame (1201) and the 3rd motor.
6. a kind of vacuum interrupter according to claim 1, it is characterised in that be provided with the ceramic shell (1) absolutely Edge cylinder (4), the static side mechanism (13) and moved end mechanism (14) coaxial sleeve are arranged in insulating cylinder (4).