CN107316759A - A kind of gas cushioning features for electromagnetic repulsion force operating mechanism - Google Patents
A kind of gas cushioning features for electromagnetic repulsion force operating mechanism Download PDFInfo
- Publication number
- CN107316759A CN107316759A CN201710592924.9A CN201710592924A CN107316759A CN 107316759 A CN107316759 A CN 107316759A CN 201710592924 A CN201710592924 A CN 201710592924A CN 107316759 A CN107316759 A CN 107316759A
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- CN
- China
- Prior art keywords
- connecting rod
- end connecting
- driving coil
- electromagnetic repulsion
- repulsion force
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- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
- H01H3/605—Mechanical arrangements for preventing or damping vibration or shock making use of a fluid damper
-
- 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
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a kind of gas cushioning features for electromagnetic repulsion force operating mechanism, including the encapsulation of electromagnetic repulsion force disk, upper end connecting rod, lower end connecting rod, combined floodgate driving coil, combined floodgate driving coil, the encapsulation of separating brake driving coil, separating brake driving coil, upper end connection rod guiding device, upper end connecting rod sliding sealing device, lower end connection rod guiding device, lower end connecting rod sliding sealing device, side wall, repulsion dish sliding sealing device, upper chamber, upper chamber breather cheek valve, lower chamber, lower chamber breather cheek valve；The present invention effectively can enter row buffering to the movable member of electromagnetic repulsion mechanism, save traditional oil bumper part, and no mechanical collision is simple in construction, compact, long lifespan.
Description
Technical field
The invention belongs to gas cushion field, it is related to a kind of gas cushioning features for electromagnetic repulsion force operating mechanism.
Background technology
Electromagnetic repulsion force operating mechanism have it is simple in construction, point, closing speed it is fast, point, closing time it is short, actuating dispersiveness is small
The advantages of, the high-speed switch based on electromagnetic repulsion force operating mechanism is in electric power system fault current limliting, utility power quality control, direct current interruption
The numerous areas such as device and phased switch has broad application prospects.However, due to the movable part of electromagnetic repulsion force operating mechanism
Part have the characteristics of movement velocity is fast, movement travel is short, its point, combined floodgate stroke terminate before buffer deceleration urgently solved as one
Key issue certainly.
Currently for electromagnetic repulsion force operating mechanism, conventional buffer is to use oil bumper, in the stroke for dividing, closing a floodgate
Row buffering is entered in end to movable member.However, the damping characteristics of oil bumper be the faster offer of speed cushion effect it is bigger, because
This, when electromagnetic repulsion force operating mechanism collides oil bumper at a relatively high speed, can produce great mechanical impact force, influence electromagnetism
The mechanical property of repulsion operating mechanism simultaneously reduces its service life.Meanwhile, to absorb the kinetic energy of electromagnetic repulsion force operating mechanism, use
Oil bumper can also increase the design size of electromagnetic repulsion force operating mechanism.
The content of the invention
It is an object of the invention to overcome the shortcoming of above-mentioned buffering method, it is proposed that one kind is used for electromagnetic repulsion force operating mechanism
Gas cushioning features, the gas cushioning features effectively can enter row buffering to the movable member of electromagnetic repulsion mechanism, save
Traditional oil bumper part, it is simple in construction, compact with without mechanical collision, the advantages of long lifespan.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
A kind of gas cushioning features for electromagnetic repulsion force operating mechanism, including it is separately fixed at the top of electromagnetic repulsion force disk 1
With the upper end connecting rod 2 and lower end connecting rod 3 of bottom, the combined floodgate driving coil encapsulation 5 of encapsulation combined floodgate driving coil 4, encapsulation point
The separating brake driving coil encapsulation 7 of lock driving coil 6, connection separating brake driving coil encapsulation 7 and the upper end connecting rod of upper end connecting rod 2
Guider 8, connection combined floodgate driving coil encapsulation 5 is connected rod guiding device 10 with the lower end of lower end connecting rod 3, is arranged on upper end
The upper end connecting rod sliding sealing device 9 between rod guiding device 8 and upper end connecting rod 2 is connected, lower end connecting rod is arranged on and leads
To the lower end connecting rod sliding sealing device 11 between device 10 and lower end connecting rod 3, connection combined floodgate driving coil encapsulates 5 and divided
The side wall 12 of lock driving coil encapsulation 7, is arranged on the repulsion dish sliding sealing device 13 between electromagnetic repulsion force disk 1 and side wall 12；
The upper end connecting rod 2, lower end connecting rod 3, upper end connecting rod sliding sealing device 9, lower end connecting rod sliding sealing device 11,
Upper end connection rod guiding device 8, lower end connection rod guiding device 10, combined floodgate driving coil encapsulation 5, separating brake driving coil encapsulation 7
And side wall 12 constitutes a closed air chamber, the air chamber is divided into upper gas by electromagnetic repulsion force disk 1 and repulsion dish sliding sealing device 13
Room 14 and lower chamber 16, upper chamber breather cheek valve 15 are arranged on upper end connection rod guiding device 8, lower chamber breather cheek valve
17 are arranged on lower end connection rod guiding device 10；Upper end connection rod guiding device 8, lower end connection rod guiding device 10, combined floodgate
Driving coil encapsulation 5, separating brake driving coil encapsulation 7 and side wall 12 interfix；The electromagnetic repulsion force disk 1 and upper end connecting rod 2
Can be relative to upper end connection rod guiding device 8, lower end connection rod guiding device 10, combined floodgate driving coil with lower end connecting rod 3
Encapsulation 5, separating brake driving coil encapsulation 7 and the motion of the in the vertical direction of side wall 12；Described 15 permissions of upper chamber breather cheek valve
Gas unidirectional flows into upper chamber 14, and lower chamber breather cheek valve 17 allows gas unidirectional to flow into lower chamber 16.
A kind of gas buffer method of described gas cushioning features for electromagnetic repulsion force operating mechanism, works as electromagnetic repulsion force
When operating mechanism carries out sub-switching operation, electromagnetic repulsion force disk 1 together with upper end connecting rod 2 and lower end connecting rod 3 electromagnetic repulsion force work
The gas made under in accelerated motion straight down, the athletic meeting compression lower chamber 16 is larger than ambient atmos pressure,
The gas outside the gas cushioning features can enter upper chamber 14 via upper chamber breather cheek valve 15 simultaneously, make upper chamber 14
Consistently equal to ambient atmos pressure, because the lower end gas pressure of electromagnetic repulsion force disk 1 is more than upper end gas pressure, therefore produces one
Individual bottom-up cushioned resistance, the cushioned resistance can moving downward and constantly increase with electromagnetic repulsion force disk 1, finally in electricity
The stroke end of magnetic repulsion operating mechanism is decelerated to zero；The gas cushioning features are closed in electromagnetic repulsion force operating mechanism
Lock has same operation principle and process during operating with above-described separating brake process.
The present invention has the advantages that：
1st, the gas cushioning features of the present invention for electromagnetic repulsion force operating mechanism use electromagnetic repulsion force disk as gas
The piston of body buffer, integrated structure design allows electromagnetic repulsion force operating mechanism overall volume to be substantially reduced.
2nd, the gas cushioning features have as electromagnetic repulsion mechanism stroke increases the characteristics of cushion effect gradually increases, with
The kinetic characteristic of electromagnetic repulsion force operating mechanism has more preferable cooperation.
3rd, the gas cushioning features use gas as buffer medium, and mechanical collision is not present between part, adds
The service life of electromagnetic repulsion force operating mechanism.
Brief description of the drawings
Fig. 1 is the gas cushioning features of the present invention for electromagnetic repulsion force operating mechanism.
Wherein, 1 it is electromagnetic repulsion force disk, 2 be upper end connecting rod, 3 be lower end connecting rod, 4 be combined floodgate driving coil, 5 is conjunction
The encapsulation of lock driving coil, 6 be separating brake driving coil, 7 be the encapsulation of separating brake driving coil, 8 be upper end connection rod guiding device, 9 be
Upper end connecting rod sliding sealing device, 10 be lower end connection rod guiding device, 11 be lower end connecting rod sliding sealing device, 12 be
Side wall, 13 be repulsion dish sliding sealing device, 14 be upper chamber, 15 be upper chamber breather cheek valve, 16 be lower chamber, 17 be under
Air chamber breather cheek valve.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
As shown in figure 1, the present invention is used for the gas cushioning features of electromagnetic repulsion force operating mechanism, including it is separately fixed at electromagnetism
The upper end connecting rod 2 and lower end connecting rod 3 of the upper and lower part of repulsion dish 1, the combined floodgate driving coil envelope of encapsulation combined floodgate driving coil 4
5 are filled, the separating brake driving coil encapsulation 7 of encapsulation separating brake driving coil 6, connection separating brake driving coil encapsulates 7 and upper end connecting rod 2
Upper end connects rod guiding device 8, and connection combined floodgate driving coil encapsulation 5 is connected rod guiding device 10 with the lower end of lower end connecting rod 3,
The upper end connecting rod sliding sealing device 9 between upper end connection rod guiding device 8 and upper end connecting rod 2 is arranged on, is arranged on down
Lower end connecting rod sliding sealing device 11 between end connection rod guiding device 10 and lower end connecting rod 3, connects combined floodgate drives line
Circle encapsulation 5 and the side wall 12 of separating brake driving coil encapsulation 7, the repulsion dish being arranged between electromagnetic repulsion force disk 1 and side wall 12 are slided
Sealing device 13；The upper end connecting rod 2, lower end connecting rod 3, upper end connecting rod sliding sealing device 9, lower end connecting rod are slided
Sealing device 11, upper end connection rod guiding device 8, lower end connection rod guiding device 10, combined floodgate driving coil encapsulation 5, separating brake drive
Moving winding encapsulation 7 and side wall 12 constitute a closed air chamber, and the air chamber is by electromagnetic repulsion force disk 1 and repulsion dish sliding sealing device 13
Upper chamber 14 and lower chamber 16 are divided into, upper chamber breather cheek valve 15 is arranged on upper end connection rod guiding device 8, lower chamber
Breather cheek valve 17 is arranged on lower end connection rod guiding device 10；Upper end connection rod guiding device 8, lower end connecting rod are oriented to dress
10, combined floodgate driving coil encapsulation 5, separating brake driving coil encapsulation 7 and side wall 12 is put to interfix；The electromagnetic repulsion force disk 1 with it is upper
Hold connecting rod 2 and lower end connecting rod 3 can be relative to upper end connection rod guiding device 8, lower end connection rod guiding device 10, combined floodgate
Driving coil encapsulation 5, separating brake driving coil encapsulation 7 and the motion of the in the vertical direction of side wall 12；The upper chamber breather cheek valve
15 allow gas unidirectional to flow into upper chamber 14, and lower chamber breather cheek valve 17 allows gas unidirectional to flow into lower chamber 16.
When electromagnetic repulsion force operating mechanism carries out sub-switching operation, electromagnetic repulsion force disk 1 is connected together with upper end connecting rod 2, lower end
The gas that bar 3 is done in the presence of electromagnetic repulsion force in accelerated motion straight down, the athletic meeting compression lower chamber 16 makes it
More than ambient atmos pressure, while the gas outside gas cushioning features of the present invention can be via upper chamber breather cheek valve 15
Into upper chamber 14, upper chamber is set to be consistently equal to ambient atmos pressure, because the lower end gas pressure of electromagnetic repulsion force disk is more than upper
Gas pressure is held, therefore produces a bottom-up cushioned resistance, the cushioned resistance can be with the downward fortune of electromagnetic repulsion force disk
Move and constantly increase, be finally decelerated to zero at the stroke end of electromagnetic repulsion force operating mechanism.Gas of the present invention delays
Rush structure has same work during electromagnetic repulsion force operating mechanism carries out closing operation with above-described separating brake process
Make principle and process.
Claims (2)
1. a kind of gas cushioning features for electromagnetic repulsion force operating mechanism, it is characterised in that：Including being separately fixed at electromagnetism reprimand
The upper end connecting rod (2) and lower end connecting rod (3) of power disk (1) upper and lower part, the combined floodgate driving of encapsulation combined floodgate driving coil (4)
Coil encapsulation (5), the separating brake driving coil encapsulation (7) of encapsulation separating brake driving coil (6), connection separating brake driving coil encapsulation (7)
Rod guiding device (8), connection combined floodgate driving coil encapsulation (5) and lower end connecting rod (3) are connected with the upper end of upper end connecting rod (2)
Lower end connection rod guiding device (10), be arranged on upper end connection rod guiding device (8) and upper end connecting rod (2) between upper end
Connecting rod sliding sealing device (9), the lower end being arranged between lower end connection rod guiding device (10) and lower end connecting rod (3) connects
The side wall (12) of extension bar sliding sealing device (11), connection combined floodgate driving coil encapsulation (5) and separating brake driving coil encapsulation (7),
It is arranged on the repulsion dish sliding sealing device (13) between electromagnetic repulsion force disk (1) and side wall (12)；The upper end connecting rod (2),
Lower end connecting rod (3), upper end connecting rod sliding sealing device (9), lower end connecting rod sliding sealing device (11), upper end connecting rod
Guider (8), lower end connection rod guiding device (10), combined floodgate driving coil encapsulation (5), separating brake driving coil encapsulation (7) and
Side wall (12) constitutes a closed air chamber, and the air chamber is divided into by electromagnetic repulsion force disk (1) and repulsion dish sliding sealing device (13)
Upper chamber (14) and lower chamber (16), upper chamber breather cheek valve (15) are arranged on upper end connection rod guiding device (8), lower gas
Room breather cheek valve (17) is arranged on lower end connection rod guiding device (10)；Upper end connection rod guiding device (8), lower end connection
Rod guiding device (10), combined floodgate driving coil encapsulation (5), separating brake driving coil encapsulation (7) and side wall (12) interfix；It is described
Electromagnetic repulsion force disk (1) and upper end connecting rod (2) and lower end connecting rod (3) can be connected relative to upper end rod guiding device (8), under
End connection rod guiding device (10), combined floodgate driving coil encapsulation (5), separating brake driving coil encapsulation (7) and side wall (12) are vertical
Moved on direction；The upper chamber breather cheek valve (15) only allows gas unidirectional to flow into upper chamber (14), and lower chamber unidirectionally enters
Air valve (17) only allows gas unidirectional to flow into lower chamber (16).
2. a kind of gas buffer method of gas cushioning features for electromagnetic repulsion force operating mechanism described in claim 1, its
It is characterised by：When electromagnetic repulsion force operating mechanism carry out sub-switching operation when, electromagnetic repulsion force disk (1) together with upper end connecting rod (2) and under
End connecting rod (3) is done in the presence of electromagnetic repulsion force in accelerated motion straight down, the athletic meeting compression lower chamber (16)
Gas be larger than ambient atmos pressure, while the gas outside the gas cushioning features can be via upper chamber one-way air inlet
Valve (15) enters upper chamber (14), upper chamber (14) is consistently equal to ambient atmos pressure, due to the lower end of electromagnetic repulsion force disk (1)
Gas pressure is more than upper end gas pressure, therefore produces a bottom-up cushioned resistance, and the cushioned resistance can be with electromagnetism
Moving downward and constantly increasing for repulsion dish (1), is finally decelerated to zero at the stroke end of electromagnetic repulsion force operating mechanism；Institute
State gas cushioning features has during electromagnetic repulsion force operating mechanism carries out closing operation with above-described separating brake process
Same operation principle and process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710592924.9A CN107316759B (en) | 2017-07-19 | 2017-07-19 | A kind of gas buffer structure for electromagnetic repulsion force operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710592924.9A CN107316759B (en) | 2017-07-19 | 2017-07-19 | A kind of gas buffer structure for electromagnetic repulsion force operating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107316759A true CN107316759A (en) | 2017-11-03 |
| CN107316759B CN107316759B (en) | 2019-07-19 |
Family
ID=60179347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710592924.9A Expired - Fee Related CN107316759B (en) | 2017-07-19 | 2017-07-19 | A kind of gas buffer structure for electromagnetic repulsion force operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107316759B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108428576A (en) * | 2018-01-31 | 2018-08-21 | 河南平高电气股份有限公司 | Buffer, operating mechanism and high-voltage switch gear |
| CN110010407A (en) * | 2019-05-14 | 2019-07-12 | 云南电网有限责任公司电力科学研究院 | A kind of electromagnetic operating mechanism and breaker |
| CN110071010A (en) * | 2019-04-10 | 2019-07-30 | 西安交通大学 | A kind of pole having gas buffer |
| CN110993381A (en) * | 2019-12-16 | 2020-04-10 | 西安交通大学 | Gas buffering structure with automatic pressure relief function for electromagnetic repulsion mechanism and working method |
| CN113436941A (en) * | 2021-06-24 | 2021-09-24 | 西安西电开关电气有限公司 | Electromagnetic repulsion mechanism for quick switch and opening and closing buffering method thereof |
| CN115472472A (en) * | 2022-09-20 | 2022-12-13 | 南京开关厂股份有限公司 | Quick breaking type vacuum circuit breaker adopting eddy current repulsion technology |
| CN117081019A (en) * | 2023-10-10 | 2023-11-17 | 西安合容开关有限公司 | Quick current limiting device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201392742Y (en) * | 2009-04-27 | 2010-01-27 | 重庆市电力公司綦南供电局 | Air buffering device and high-voltage vacuum circuit breaker utilizing same |
| CN105206439A (en) * | 2015-10-09 | 2015-12-30 | 许继电气股份有限公司 | Pneumatic operating mechanism and locomotive high-voltage switch adopting same |
| CN106356211A (en) * | 2016-10-13 | 2017-01-25 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | Gas buffer device for high-speed repulsion mechanism |
-
2017
- 2017-07-19 CN CN201710592924.9A patent/CN107316759B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201392742Y (en) * | 2009-04-27 | 2010-01-27 | 重庆市电力公司綦南供电局 | Air buffering device and high-voltage vacuum circuit breaker utilizing same |
| CN105206439A (en) * | 2015-10-09 | 2015-12-30 | 许继电气股份有限公司 | Pneumatic operating mechanism and locomotive high-voltage switch adopting same |
| CN106356211A (en) * | 2016-10-13 | 2017-01-25 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | Gas buffer device for high-speed repulsion mechanism |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108428576A (en) * | 2018-01-31 | 2018-08-21 | 河南平高电气股份有限公司 | Buffer, operating mechanism and high-voltage switch gear |
| CN108428576B (en) * | 2018-01-31 | 2020-10-27 | 河南平高电气股份有限公司 | Buffer, operating mechanism and high-voltage switch |
| CN110071010A (en) * | 2019-04-10 | 2019-07-30 | 西安交通大学 | A kind of pole having gas buffer |
| CN110071010B (en) * | 2019-04-10 | 2020-11-17 | 西安交通大学 | Solid-sealed polar pole with gas buffering device |
| CN110010407A (en) * | 2019-05-14 | 2019-07-12 | 云南电网有限责任公司电力科学研究院 | A kind of electromagnetic operating mechanism and breaker |
| CN110993381A (en) * | 2019-12-16 | 2020-04-10 | 西安交通大学 | Gas buffering structure with automatic pressure relief function for electromagnetic repulsion mechanism and working method |
| CN113436941A (en) * | 2021-06-24 | 2021-09-24 | 西安西电开关电气有限公司 | Electromagnetic repulsion mechanism for quick switch and opening and closing buffering method thereof |
| CN113436941B (en) * | 2021-06-24 | 2023-04-25 | 西安西电开关电气有限公司 | Electromagnetic repulsion mechanism for quick switch and switching-on/off buffering method thereof |
| CN115472472A (en) * | 2022-09-20 | 2022-12-13 | 南京开关厂股份有限公司 | Quick breaking type vacuum circuit breaker adopting eddy current repulsion technology |
| CN117081019A (en) * | 2023-10-10 | 2023-11-17 | 西安合容开关有限公司 | Quick current limiting device |
| CN117081019B (en) * | 2023-10-10 | 2024-03-12 | 西安合容开关有限公司 | Quick current limiting device |
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|---|---|
| CN107316759B (en) | 2019-07-19 |
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Granted publication date: 20190719 |
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