CN106532549A - Hermetically sealed touch switch cabinet based on permanent magnet operating mechanism - Google Patents
Hermetically sealed touch switch cabinet based on permanent magnet operating mechanism Download PDFInfo
- Publication number
- CN106532549A CN106532549A CN201510572478.6A CN201510572478A CN106532549A CN 106532549 A CN106532549 A CN 106532549A CN 201510572478 A CN201510572478 A CN 201510572478A CN 106532549 A CN106532549 A CN 106532549A
- Authority
- CN
- China
- Prior art keywords
- iron core
- permanent
- push rod
- switch
- dynamic iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0354—Gas-insulated switchgear comprising a vacuum switch
Abstract
The invention discloses a hermetically sealed touch switch cabinet based on a permanent magnet operating mechanism. The hermetically sealed touch switch cabinet based on a permanent magnet operating mechanism includes a cabinet body, wherein a permanent magnet operating mechanism and a touch switch box are arranged on the cabinet body; the touch switch box is a sealed box body with insulating gas; vacuum shutdown switches, isolation grounding switches and a main shaft which is used for driving closing/opening of the vacuum shutdown switches are arranged in the touch switch box; the permanent magnet operating mechanism includes a housing, and a front cover plate and a back cover plate which are arranged on the housing; a permanent magnet, a movable iron core push rod, a closing solenoid coil and an opening solenoid coil; the movable iron core push rod successively penetrates through the front cover plate, the closing solenoid coil, the permanent magnet, the opening solenoid coil and the back cover plate; and the movable iron core push rod penetrates through one end of the front cover plate and is connected to the main shaft through a crank link mechanism. The hermetically sealed touch switch cabinet based on a permanent magnet operating mechanism has the advantages of being easy to control, being simple in structure, being high in reliability, being long in service life, and being easy for maintenance.
Description
Technical field
The present invention relates to tangible switch cubicle, more particularly to a kind of touched based on the hermetically sealed of permanent-magnet manipulating mechanism
Touch switch cubicle.
Background technology
In middle voltage electrical technical field, hermetically sealed tangible switch cabinet equipment is high in a kind of three-phase alternating current room
Voltage switching station.Which adopts modularized design, perfect unity with flexible expansion fixed with which, is adapted to electricity
Force system terminal use or the requirement of network node, while meet various distribution switching stations, box-type substation,
The features such as with compact conformation, life-span length, non-maintaining, small volume, belong to a kind of control and protection combines
Electrical equipment.
At present, known hermetically sealed tangible switch cubicle great majority use spring operating mechanism, the actuating
Mechanism is one of key core part in middle pressure ring main unit, but spring operating mechanism is suffered from the drawback that：Close
Relying on motor or manual operation during lock makes switching-in spring stretch energy storage, recycles lock machinery to realize,
Which fully relies on mechanism driving, and many, drive mechanism is complex, manufacturing process requirement to there is parts sum
Many deficiencies such as higher, sliding friction face is more, the stream of the abrasion of these parts, corrosion and lubricant
Mistake, solidification etc. can all cause spring operating mechanism operational error to cause the consequence that can not be estimated.
The content of the invention
The technical problem to be solved in the present invention is, for the deficiencies in the prior art, there is provided a kind of to be based on permanent magnetism
Operating mechanism, and with being easily manipulated, it is simple structure, good reliability, long service life, easy to maintain
Hermetically sealed tangible switch cubicle.
For solving above-mentioned technical problem, the present invention is adopted the following technical scheme that.
A kind of hermetically sealed tangible switch cubicle based on permanent-magnet manipulating mechanism, which includes cabinet, the cabinet
Permanent-magnet manipulating mechanism and tangible switch-box is provided with, the tangible switch-box is equipped with the close of insulating gas
Casing is closed, vacuum circuit-breaking switch, isolation earthing switch is provided with the tangible switch-box and for driving very
The main shaft of empty disconnect switch divide-shut brake, the permanent-magnet manipulating mechanism include housing and the protecgulum on housing
Plate and back shroud, are provided with permanent magnet, dynamic iron core push rod, combined floodgate solenoid and separating brake electromagnetism in the housing
Coil, the dynamic iron core push rod sequentially pass through front shroud, combined floodgate solenoid, permanent magnet, separating brake electromagnetic wire
Circle and back shroud, the dynamic iron core push rod are connected to master through one end of front shroud by toggle
Axle, wherein：On the combined floodgate solenoid during electricity, dynamic iron core push rod cover plate direction movement forward, with
The toggle drive shaft is made to rotate and vacuum circuit-breaking switch closes a floodgate；The separating brake solenoid
When upper electric, the dynamic iron core push rod is moved to back shroud direction, to make the toggle drive shaft
Rotate backward and by vacuum circuit-breaking switch separating brake.
Preferably, to include the transmission crank arm that is sequentially connected, connecting rod, double end universal for the toggle
Section and bent axle, the transmission crank arm are connected to dynamic iron core push rod, and are turned by dynamic iron core top rod driving transmission
Arm swing, the transmission crank arm pass through connecting rod and double end universal joint drive bent axle and rotate in predetermined angle, institute
State bent axle coaxially connected in main shaft, to make the main shaft together rotate with bent axle.
Preferably, the permanent-magnet manipulating mechanism also includes divide-shut brake indicator board, on the divide-shut brake indicator board
Notch is offered, screw in the notch, is equipped with, the screw is fixed on housing, and the divide-shut brake refers to
Show that plate is connected to dynamic iron core push rod, and the translation of divide-shut brake indicator board driven by the dynamic iron core push rod, by point
The relative position of combined floodgate indicator board and screw and indicate opening and closing state.
Preferably, the end of the dynamic iron core push rod is provided with cam mechanism, between the cam mechanism and housing
Spring is provided with, drives by pulling the cam mechanism dynamic iron core push rod to move to back shroud direction,
To make vacuum circuit-breaking switch separating brake.
Preferably, the tangible switch-box is provided with spelling cabinet expansion interface, under the tangible switch-box
Portion is formed with step surface, and the step surface is provided with adapter conduit.
Preferably, control room is provided with the top of the cabinet, and the bottom of the cabinet is provided with line cable vault,
The pars intermedia of the cabinet is provided with switching mechanism room, and the permanent-magnet manipulating mechanism is located in switching mechanism room, institute
State pressure releasing chamber is provided with below tangible switch-box.
In hermetically sealed tangible switch cubicle based on permanent-magnet manipulating mechanism disclosed by the invention, tangible switch-box
For seal case, and which internal is filled with insulating gas and with the vacuum interrupter of vacuum circuit-breaking switch as insulation
Medium, and then reach double insulation arc quenching effect, it is ensured that the safety and reliability of equipment, meanwhile, this
Invention eliminates the operating mechanism of existing machinery formula, using permanent-magnet manipulating mechanism, and passes through permanent-magnet manipulating mechanism
Control dynamic iron core push rod is moved forward and backward, and then drives vacuum circuit-breaking switch divide-shut brake, which reduces driving member
Quantity, additionally, the present invention by point, the control system of switching on or off electricity of combined floodgate solenoid, realize disconnected to vacuum
Way switch carries out the manipulation that is turned on or off so that the present invention have be easily manipulated, simple structure, good reliability,
The advantage such as long service life, easy to maintain.
Description of the drawings
Fig. 1 is the axonometric chart of the hermetically sealed tangible switch cubicle of the present invention.
Cut-away views of the Fig. 2 for permanent-magnet manipulating mechanism.
Axonometric charts of the Fig. 3 for permanent-magnet manipulating mechanism.
Fig. 4 is the cut-away view of tangible switch-box.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is described in more detail.
The invention discloses a kind of hermetically sealed tangible switch cubicle based on permanent-magnet manipulating mechanism, with reference to Fig. 1 extremely
Shown in Fig. 4, which includes cabinet 300, and the cabinet 300 is provided with permanent-magnet manipulating mechanism 100 and tangible
Switch-box 200, the tangible switch-box 200 are equipped with the containment housing of insulating gas, described tangible to open
Close and be provided with vacuum circuit-breaking switch 202, isolation earthing switch 203 in case 200 and for driving vacuum circuit-breaking switch
The main shaft 12 of 202 divide-shut brakes, the permanent-magnet manipulating mechanism 100 include housing 5 and on housing 5
Front shroud 7 and back shroud 1, are provided with permanent magnet 4, dynamic iron core push rod 2, combined floodgate electromagnetic wire in the housing 5
Circle 6 and separating brake solenoid 3, the dynamic iron core push rod 2 sequentially pass through front shroud 7, combined floodgate solenoid 6,
Permanent magnet 4, separating brake solenoid 3 and back shroud 1, the one end of the dynamic iron core push rod 2 through front shroud 7
Main shaft 12 is connected to by toggle, wherein：
On the combined floodgate solenoid 6 during electricity, 7 direction of the cover plate movement forward of the dynamic iron core push rod 2, with
The toggle drive shaft 12 is made to rotate and vacuum circuit-breaking switch 202 closes a floodgate；
On the separating brake solenoid 3 during electricity, the dynamic iron core push rod 2 is moved to 1 direction of back shroud, with
The toggle drive shaft 12 is made to rotate backward and by 202 separating brake of vacuum circuit-breaking switch.
In above-mentioned hermetically sealed tangible switch cubicle, tangible switch-box 200 is seal case, and is filled out inside which
It is insulation gas filled and with the vacuum interrupter of vacuum circuit-breaking switch 202 as dielectric, and then reach dual
Insulation arc quenching effect, it is ensured that the safety and reliability of equipment, meanwhile, present invention eliminates existing machinery
The operating mechanism of formula, using permanent-magnet manipulating mechanism 100, and controls dynamic iron core top by permanent-magnet manipulating mechanism 100
Bar 2 is moved forward and backward, and then drives 202 divide-shut brake of vacuum circuit-breaking switch, which reduces the quantity of driving member,
Additionally, the present invention by point, the control system of switching on or off electricity of combined floodgate solenoid, realize to vacuum circuit-breaking switch
202 carry out the manipulation that is turned on or off so that the present invention has and is easily manipulated, simple structure, good reliability, makes
With the advantage such as life-span length, easy to maintain.
Further, the toggle includes the transmission crank arm 101, connecting rod 9, double being sequentially connected
Head gimbal 8 and bent axle 206, the transmission crank arm 101 are connected to dynamic iron core push rod 2, and by the dynamic ferrum
Core push rod 2 drives transmission crank arm 101 to swing, and the transmission crank arm 101 passes through connecting rod 9 and double end universal joint 8
Bent axle 206 is driven to rotate in predetermined angle, the bent axle 206 is coaxially connected in main shaft 12, described to make
Main shaft 12 is together rotated with bent axle 206.But this is only a preferred embodiment of the present invention, and without
In the present invention is limited, in other embodiments of the invention, other kinds of crank connecting link machine can also be adopted
Structure.
In order to be explicitly indicated opening and closing state, the permanent-magnet manipulating mechanism 100 also includes divide-shut brake indicator board
13, notch is offered on the divide-shut brake indicator board 13, is equipped with screw in the notch, the screw is solid
On housing 5, the divide-shut brake indicator board 13 is connected to dynamic iron core push rod 2, and by the dynamic iron core top
Bar 2 drives divide-shut brake indicator board 13 to translate, and refers to by divide-shut brake indicator board 13 and the relative position of screw
Show opening and closing state.
In actual applications, when there is power-off or during the emergency such as the signal of telecommunication is weaker, for the ease of manually point
Lock, the present invention also adopt following preferred version：The end of the dynamic iron core push rod 2 is provided with cam mechanism 102,
Spring is provided between the cam mechanism 102 and housing 5, is driven by pulling the cam mechanism 102
The dynamic iron core push rod 2 is moved to 1 direction of back shroud, to make 202 separating brake of vacuum circuit-breaking switch.
In the present embodiment, the tangible switch-box 200 is provided with spelling cabinet expansion interface 205, described tangible
The bottom of switch-box 200 is formed with step surface 207, and the step surface 207 is provided with adapter conduit 204.
By said structure, contribute to being extended the present invention, and then meet and spell cabinet and the occasion such as use.
As a kind of optimal way, control room 304 is provided with the top of the cabinet 300, under the cabinet 300
Portion is provided with line cable vault 302, and the pars intermedia of the cabinet 300 is provided with switching mechanism room 303, it is described forever
In switching mechanism room 303, the lower section of the tangible switch-box 200 is provided with lets out magnetic operating mechanism 100
Pressure chamber 301.Above-mentioned each unit room is the structure of standalone module, contributes to Batch assemblage, production.
Hermetically sealed tangible switch cubicle based on permanent-magnet manipulating mechanism disclosed by the invention, by dividing, closing a floodgate
The control system of switching on or off electricity of solenoid, it becomes possible to realize the manipulation that is turned on or off to vacuum circuit-breaking switch, here
On the basis of, the present invention also has the several functions such as spelling cabinet extension, manual brake separating, and then meets various applied fields
Close.With reference to above-mentioned technical proposal as can be seen that the present invention achieves prominent progress in switch cubicle technical field,
It is adapted to popularization and application in the art, and there is preferable market prospect.
The above is preferred embodiments of the present invention, is not limited to the present invention, all the present invention's
Modification, equivalent or improvement made in technical scope etc., should be included in the model protected by the present invention
In enclosing.
Claims (6)
1. a kind of hermetically sealed tangible switch cubicle based on permanent-magnet manipulating mechanism, it is characterised in that include cabinet
Body, the cabinet are provided with permanent-magnet manipulating mechanism and tangible switch-box, and the tangible switch-box is equipped with
The containment housing of insulating gas, is provided with vacuum circuit-breaking switch, isolation earthing switch in the tangible switch-box
With for driving the main shaft of vacuum circuit-breaking switch divide-shut brake, the permanent-magnet manipulating mechanism to include housing and be located at
Front shroud and back shroud on housing, is provided with permanent magnet, dynamic iron core push rod, combined floodgate electromagnetic wire in the housing
Circle and separating brake solenoid, the dynamic iron core push rod sequentially pass through front shroud, combined floodgate solenoid, permanent magnet,
Separating brake solenoid and back shroud, the dynamic iron core push rod pass through toggle through one end of front shroud
And main shaft is connected to, wherein：
On the combined floodgate solenoid during electricity, dynamic iron core push rod cover plate direction movement forward is described to make
Toggle drive shaft rotates and vacuum circuit-breaking switch closes a floodgate；
On the separating brake solenoid during electricity, the dynamic iron core push rod is moved to back shroud direction, described to make
Toggle drive shaft is rotated backward and by vacuum circuit-breaking switch separating brake.
2. the hermetically sealed tangible switch cubicle based on permanent-magnet manipulating mechanism as claimed in claim 1, its feature
It is that the toggle includes transmission crank arm, connecting rod, double end universal joint and the song being sequentially connected
Axle, the transmission crank arm are connected to dynamic iron core push rod, and are swung by the dynamic iron core top rod driving transmission crank arm,
The transmission crank arm passes through connecting rod and double end universal joint drive bent axle and rotates in predetermined angle, and the bent axle is same
Axle is connected to main shaft, to make the main shaft together rotate with bent axle.
3. the hermetically sealed tangible switch cubicle based on permanent-magnet manipulating mechanism as claimed in claim 1, its feature
It is that the permanent-magnet manipulating mechanism also includes divide-shut brake indicator board, offers on the divide-shut brake indicator board
Notch, is equipped with screw in the notch, the screw is fixed on housing, and the divide-shut brake indicator board connects
Dynamic iron core push rod is connected to, and the translation of divide-shut brake indicator board is driven by the dynamic iron core push rod, referred to by divide-shut brake
Show the relative position of plate and screw and indicate opening and closing state.
4. the hermetically sealed tangible switch cubicle based on permanent-magnet manipulating mechanism as claimed in claim 1, its feature
It is that the end of the dynamic iron core push rod is provided with cam mechanism, is provided with bullet between the cam mechanism and housing
Spring, drives the dynamic iron core push rod to move to back shroud direction by pulling the cam mechanism, true to make
Empty disconnect switch separating brake.
5. the hermetically sealed tangible switch cubicle based on permanent-magnet manipulating mechanism as claimed in claim 1, its feature
It is that the tangible switch-box is provided with spelling cabinet expansion interface, and the bottom of the tangible switch-box is formed
There is step surface, the step surface is provided with adapter conduit.
6. the hermetically sealed tangible switch cubicle based on permanent-magnet manipulating mechanism as claimed in claim 1, its feature
It is at the top of the cabinet, to be provided with control room, the bottom of the cabinet is provided with line cable vault, the cabinet
The pars intermedia of body is provided with switching mechanism room, and the permanent-magnet manipulating mechanism is in switching mechanism room, described to touch
Touch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510572478.6A CN106532549A (en) | 2015-09-10 | 2015-09-10 | Hermetically sealed touch switch cabinet based on permanent magnet operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510572478.6A CN106532549A (en) | 2015-09-10 | 2015-09-10 | Hermetically sealed touch switch cabinet based on permanent magnet operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106532549A true CN106532549A (en) | 2017-03-22 |
Family
ID=58345825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510572478.6A Pending CN106532549A (en) | 2015-09-10 | 2015-09-10 | Hermetically sealed touch switch cabinet based on permanent magnet operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106532549A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695759A (en) * | 2018-08-08 | 2018-10-23 | 北京科锐配电自动化股份有限公司 | A kind of gas-insulated ring network cabinet with quick acting switching-off function |
| CN110335770A (en) * | 2019-07-10 | 2019-10-15 | 长园电力技术有限公司 | A kind of intelligence disconnecting switch control device and its control method |
| CN110767407A (en) * | 2019-10-14 | 2020-02-07 | 西南交通大学 | Multistable electromagnetic operating mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2914304Y (en) * | 2006-05-16 | 2007-06-20 | 王华东 | Permanent magnetism intelligent mechanism low-voltage vacuum breaker |
| JP4956141B2 (en) * | 2006-10-31 | 2012-06-20 | 株式会社東芝 | Vacuum circuit breaker |
| CN102916352A (en) * | 2012-11-07 | 2013-02-06 | 北京科锐配电自动化股份有限公司 | Miniaturized fixed type switch cabinet |
| CN104779549A (en) * | 2015-04-20 | 2015-07-15 | 深圳市华诚电力设备有限公司 | Intelligent fully-enclosed permanent magnetic vacuum circuit breaker |
| CN204632663U (en) * | 2015-05-19 | 2015-09-09 | 亚洲电力设备(深圳)股份有限公司 | Permanent magnetic actuator vacuum separating brake closing device |
| CN205029237U (en) * | 2015-09-10 | 2016-02-10 | 亚洲电力设备(深圳)股份有限公司 | But totally enclosed touch switch cabinet based on permanent magnet operating mechanism |
-
2015
- 2015-09-10 CN CN201510572478.6A patent/CN106532549A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2914304Y (en) * | 2006-05-16 | 2007-06-20 | 王华东 | Permanent magnetism intelligent mechanism low-voltage vacuum breaker |
| JP4956141B2 (en) * | 2006-10-31 | 2012-06-20 | 株式会社東芝 | Vacuum circuit breaker |
| CN102916352A (en) * | 2012-11-07 | 2013-02-06 | 北京科锐配电自动化股份有限公司 | Miniaturized fixed type switch cabinet |
| CN104779549A (en) * | 2015-04-20 | 2015-07-15 | 深圳市华诚电力设备有限公司 | Intelligent fully-enclosed permanent magnetic vacuum circuit breaker |
| CN204632663U (en) * | 2015-05-19 | 2015-09-09 | 亚洲电力设备(深圳)股份有限公司 | Permanent magnetic actuator vacuum separating brake closing device |
| CN205029237U (en) * | 2015-09-10 | 2016-02-10 | 亚洲电力设备(深圳)股份有限公司 | But totally enclosed touch switch cabinet based on permanent magnet operating mechanism |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695759A (en) * | 2018-08-08 | 2018-10-23 | 北京科锐配电自动化股份有限公司 | A kind of gas-insulated ring network cabinet with quick acting switching-off function |
| CN110335770A (en) * | 2019-07-10 | 2019-10-15 | 长园电力技术有限公司 | A kind of intelligence disconnecting switch control device and its control method |
| CN110335770B (en) * | 2019-07-10 | 2020-04-21 | 长园电力技术有限公司 | Intelligent isolating switch control device and control method thereof |
| CN110767407A (en) * | 2019-10-14 | 2020-02-07 | 西南交通大学 | Multistable electromagnetic operating mechanism |
| CN110767407B (en) * | 2019-10-14 | 2021-03-05 | 西南交通大学 | Multistable electromagnetic operating mechanism |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170322 |