CN105428106A - High-speed switch - Google Patents
High-speed switch Download PDFInfo
- Publication number
- CN105428106A CN105428106A CN201510816207.0A CN201510816207A CN105428106A CN 105428106 A CN105428106 A CN 105428106A CN 201510816207 A CN201510816207 A CN 201510816207A CN 105428106 A CN105428106 A CN 105428106A
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- CN
- China
- Prior art keywords
- repulsion
- switch
- coil
- dish
- connecting rod
- 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.)
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Classifications
-
- 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
- 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
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The present invention relates to a high-speed switch. The switch comprises a switch contact, a connecting rod, a repulsion operating mechanism, a rack, a closing and breaking switch, and a power supply. The connecting rod is slidably connected to the rack, one end of the connecting rod is connected to a movable contact in the switch contact, and the other end of the connecting rod is arranged in a manner of running through the repulsion operating mechanism; the repulsion operating mechanism comprises a breaking repulsion disk, a repulsion coil and a closing repulsion disk which are sequentially arranged in parallel in the axial direction of the connecting rod; the breaking repulsion disk and the closing repulsion disk are separately fixed on the rack; the repulsion coil is fixed on the connecting rod; the power supply is connected with the repulsion coil through the closing and breaking switch to supply power; when the switch contact is at a breaking position, a gap between the repulsion coil and the closing repulsion disk is smaller than a gap between the repulsion coil and the breaking repulsion disk; and when the switch contact is at a closing position, the gap between the repulsion coil and the closing repulsion disk is greater than the gap between the repulsion coil and the breaking repulsion disk. By utilizing two principles that electromagnetic repulsion is sensitive to the sizes of the gaps between the repulsion coil and the repulsion disks, and the electromagnetic repulsion has short acting time, only one repulsion coil can complete closing and breaking.
Description
Technical field
The present invention relates to high-voltage switch gear field, be specially a kind of speed-sensitive switch.
Background technology
Along with the development of electric power system, the requirement of electric power system to power switch is more and more higher.The electromagnetic repulsion force operating mechanism of eddy current repulsion principle is relied on to become the focus of research owing to having outstanding advantage in rapidity and reliability.Repulsion operating mechanism has the advantage that structure is simple, responsiveness is exceedingly fast, reliability is high, therefore obtains attention and the research of Chinese scholars.
The structure of the speed-sensitive switch proposed in CN201310007542.7, CN200810056975.0, CN201010574242.3 and CN201310018005.2, can reach the object of high speed divide-shut brake.But structure involved in above patent is two repulsion coils, a repulsion dish movement under force completes the on/off switch operation of switch, and structure is comparatively complicated.
Summary of the invention
For problems of the prior art, the invention provides one and all can accelerate at separating brake and combined floodgate, structure is simple, easy to operate speed-sensitive switch.
The present invention is achieved through the following technical solutions:
A kind of speed-sensitive switch, comprises switch contact, connecting rod, repulsion operating mechanism, frame and on/off switch switch, and power supply; Rod slide is connected in frame, the moving contact in the connecting valve contact of one end, and the other end runs through repulsion operating mechanism and arranges; Repulsion operating mechanism comprises successively along pitman shaft to the separating brake repulsion dish be arranged in parallel, repulsion coil and combined floodgate repulsion dish; Separating brake repulsion dish and combined floodgate repulsion dish are separately fixed in frame; Repulsion coil is fixed on connecting rod; Power supply connects repulsion coil power supply after on/off switch switch; When switch contact is in open position, the gap of repulsion coil and combined floodgate repulsion dish is less than the gap with separating brake repulsion dish; When switch contact is in closing position, the gap of repulsion coil and combined floodgate repulsion dish is greater than the gap with separating brake repulsion dish.
Preferably, connecting dividing lock on-off controller on on/off switch switch.
Preferably, switch contact is arranged in arc control device.
Preferably, also comprise buffer, buffer correspondence is arranged in the frame of connecting rod free end side, for during separating brake to the buffering of connecting rod.
Preferably, during the drivening rod action of repulsion coil, the divide-shut brake of switch contact is less than 5ms operate time.
Preferably, during the drivening rod action of repulsion coil, the divide-shut brake of switch contact is less than 3ms operate time.
Preferably, power supply adopts storage capacitor.
Compared with prior art, the present invention has following useful technique effect:
The present invention utilizes electromagnetic repulsion force responsive to the gap length between repulsion coil and repulsion dish, and electromagnetic repulsion force short two principles action time, repulsion coil is placed between two repulsion dishes, repulsion dish is fixed in frame, repulsion coil stressed drive link motion during the operation of switch on/off switch, the present invention compares the speed-sensitive switch of usual structure, the on/off switch function of speed-sensitive switch only just can be completed with a repulsion coil, therefore greatly simplify the structure of speed-sensitive switch, can reliability be improved.
Further, by switch contact is arranged in arc control device, and the divide-shut brake controller arranged, improve its accuracy used, reliability and fail safe, extend its scope of application.
Further, by the setting of buffer, cushioning effect can be played when separating brake, improve useful life.
Accompanying drawing explanation
Fig. 1 is the speed-sensitive switch structural representation described in example of the present invention.
The Distribution of Magnetic Field figure of repulsion operating mechanism when Fig. 2 is for closing a floodgate described in example of the present invention.
Fig. 3 is the Distribution of Magnetic Field figure of repulsion operating mechanism during separating brake described in example of the present invention.
In figure: switch contact 1, connecting rod 2, separating brake repulsion dish 3, repulsion coil 4, combined floodgate repulsion dish 5, buffer 6, frame 7, on/off switch switch 8, storage capacitor 9.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail, and the explanation of the invention is not limited.
The present invention proposes a kind of speed-sensitive switch, and as shown in Figure 1, it is made up of switch contact 1, connecting rod 2, repulsion operating mechanism, buffer 6, frame 7, on/off switch switch 8 and storage capacitor 9; Repulsion operating mechanism is made up of separating brake repulsion dish 3, repulsion coil 4 and combined floodgate repulsion dish 5; This speed-sensitive switch only just can complete combined floodgate, the separating brake function of speed-sensitive switch with a repulsion coil 4.
Wherein, repulsion coil 4 is connected with connecting rod 2, and drivening rod 2 together moves by repulsion coil 4; Separating brake repulsion dish 3 and combined floodgate repulsion dish 5 are separately fixed in frame 7.Repulsion coil 4 is placed between separating brake repulsion dish 3 and combined floodgate repulsion dish 5; When on/off switch switch 8 conducting, storage capacitor 9 moment discharges to repulsion coil 4, and now vertiginous electric current in repulsion coil 4 can make the vortex flow that on combined floodgate repulsion dish 5 and separating brake repulsion dish 3, induction is contrary with the sense of current in repulsion coil 4 respectively.
Electromagnetic repulsion force is very responsive to the gap between repulsion dish and repulsion coil, and the electromagnetic repulsion force that distance more closely produces is larger, will decline very fast if gap increases electromagnetic repulsion force; Curent change simultaneously in repulsion coil is exceedingly fast, and be generally less than 0.5ms, therefore the main stressed time of repulsion coil and repulsion dish is generally also less than 0.5ms.Therefore repulsion coil 4 direction of motion can be determined with the position relationship of separating brake repulsion dish 3 and combined floodgate repulsion dish 5 by arranging repulsion coil 4 in the present invention.
When breaker in middle contact 1 of the present invention is in open position, repulsion coil 4 is less with the gap of combined floodgate repulsion dish, and larger with the gap of separating brake repulsion dish 3; When switch carries out closing operation, the power that combined floodgate repulsion dish 5 imposes on repulsion coil 4 upward direction imposes on repulsion coil 4 power in downward direction much larger than separating brake repulsion dish 3; And when described switch contact 1 is in closing position, repulsion coil 4 is comparatively large with the gap of combined floodgate repulsion dish, and less with the gap of separating brake repulsion dish 3; When switch carries out sub-switching operation, separating brake repulsion dish 3 imposes on repulsion coil 4 power in downward direction imposes on repulsion coil 4 upward direction power much larger than combined floodgate repulsion dish 5.
Concrete, as shown in Figure 2, the Distribution of Magnetic Field figure of repulsion operating mechanism when speed-sensitive switch closes a floodgate, the gap of repulsion coil h2 and combined floodgate repulsion dish h3 is less, as calculated, between repulsion coil h2 and combined floodgate repulsion dish h3 magnetic fields much larger than the magnetic fields between repulsion coil h2 and separating brake repulsion dish h1.The vortex flow that now on combined floodgate repulsion dish h3, the vortex flow of induction is responded on separating brake repulsion dish h1.
In this preferred embodiment: switch contact 1 is in open position, carry out closing operation, first storage capacitor 9 is full of during work, then signal to on/off switch switch 8 by on/off switch controller and make its conducting, storage capacitor 9 moment discharges to repulsion coil 4, now there is vertiginous electric current in repulsion coil 4, combined floodgate repulsion dish 5 and separating brake repulsion dish 3 can respond to the vortex flow contrary with the sense of current in repulsion coil 4 respectively, but because the gap between combined floodgate repulsion dish 5 and repulsion coil 4 is little many compared with the gap between separating brake repulsion dish 3 and repulsion coil 4, therefore, vortex flow now in combined floodgate repulsion dish 5 is more much larger than the vortex flow in separating brake repulsion dish 3.Due to the acting in conjunction of the electric current in vortex flow and repulsion coil 4, very large electromagnetic repulsion force is produced between repulsion coil 4 and combined floodgate repulsion dish 5, repulsion coil 4 drivening rod 2 under the effect of electromagnetic repulsion force moves upward at a high speed, thus in a short period of time, be generally less than 3ms, complete the feed motion of switch contact 1.
As shown in Figure 3, the Distribution of Magnetic Field figure of repulsion operating mechanism when speed-sensitive switch closes a floodgate, the gap of repulsion coil h2 and separating brake repulsion dish h1 is less, and as calculated, between repulsion coil h2 and separating brake repulsion dish h1, magnetic fields is much larger than the magnetic fields between repulsion coil h2 and combined floodgate repulsion dish h3.The vortex flow that now on separating brake repulsion dish h1, the vortex flow of induction is responded on combined floodgate repulsion dish h3.
In this preferred embodiment: switch contact 1 is in closing position, carry out sub-switching operation; First storage capacitor 9 is full of during work, its conducting is made when on/off switch controller signals to on/off switch switch 8, working condition during similar combined floodgate, the main distinction is: the gap under this operating mode between separating brake repulsion dish 3 and repulsion coil 4 is less, under the acting in conjunction of the vortex flow in separating brake repulsion dish 3 and the electric current in repulsion coil 4, repulsion coil 4 drivening rod 2 under the effect of electromagnetic repulsion force moves downward at a high speed.Thus in a short period of time, be generally less than 3ms, complete the separating brake action of switch contact 1.
Claims (7)
1. a speed-sensitive switch, is characterized in that, comprises switch contact (1), connecting rod (2), repulsion operating mechanism, frame (7) and on/off switch switch (8), and power supply;
Described connecting rod (2) is slidably connected in frame (7), the moving contact in one end connecting valve contact (1), and the other end runs through repulsion operating mechanism and arranges;
Described repulsion operating mechanism comprises successively along separating brake repulsion dish (3), repulsion coil (4) and combined floodgate repulsion dish (5) that connecting rod (2) axially be arranged in parallel; Separating brake repulsion dish (3) and combined floodgate repulsion dish (5) are separately fixed in frame (7); Repulsion coil (4) is fixed on connecting rod (2); Power supply connects repulsion coil (4) power supply after on/off switch switch (8);
When switch contact (1) is in open position, repulsion coil (4) is less than the gap with separating brake repulsion dish (3) with the gap of combined floodgate repulsion dish (5); When switch contact (1) is in closing position, repulsion coil (4) is greater than the gap with separating brake repulsion dish (3) with the gap of combined floodgate repulsion dish (5).
2. a kind of speed-sensitive switch according to claim 1, is characterized in that, the upper connecting dividing lock on-off controller of described on/off switch switch (8).
3. a kind of speed-sensitive switch according to claim 1, is characterized in that, described switch contact (1) is arranged in arc control device.
4. a kind of speed-sensitive switch according to claim 1, it is characterized in that, also comprise buffer (6), buffer (6) correspondence is arranged in the frame (7) of connecting rod (2) free end side, for during separating brake to the buffering of connecting rod (2).
5. a kind of speed-sensitive switch according to claim 1, is characterized in that, during repulsion coil (4) drivening rod (2) action, the divide-shut brake of switch contact (1) is less than 5ms operate time.
6. a kind of speed-sensitive switch according to claim 1, is characterized in that, during repulsion coil (4) drivening rod (2) action, the divide-shut brake of switch contact (1) is less than 3ms operate time.
7. a kind of speed-sensitive switch according to claim 1, is characterized in that, power supply adopts storage capacitor (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510816207.0A CN105428106A (en) | 2015-11-20 | 2015-11-20 | High-speed switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510816207.0A CN105428106A (en) | 2015-11-20 | 2015-11-20 | High-speed switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105428106A true CN105428106A (en) | 2016-03-23 |
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ID=55506244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510816207.0A Pending CN105428106A (en) | 2015-11-20 | 2015-11-20 | High-speed switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105428106A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601545A (en) * | 2017-02-27 | 2017-04-26 | 大连理工大学 | Novel vacuum interrupter structure |
| CN106783258A (en) * | 2017-01-23 | 2017-05-31 | 天津平高智能电气有限公司 | Switching device and the high-speed switch using the device |
| CN107230563A (en) * | 2017-06-06 | 2017-10-03 | 思源电气股份有限公司 | Speed-sensitive switch |
| CN112490070A (en) * | 2020-11-19 | 2021-03-12 | 广东电网有限责任公司广州供电局 | Electromagnetic repulsion mechanism based on double-repulsion disc |
| CN112635232A (en) * | 2020-12-11 | 2021-04-09 | 平高集团有限公司 | Electromagnetic repulsion force quick mechanism and quick mechanical switch |
| CN112713046A (en) * | 2020-12-11 | 2021-04-27 | 平高集团有限公司 | Buffer device, operating mechanism and extremely fast on-off high-voltage switch |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000331576A (en) * | 1999-05-24 | 2000-11-30 | Mitsubishi Electric Corp | Vacuum breaker device |
| CN101221864A (en) * | 2008-01-28 | 2008-07-16 | 中国电力科学研究院 | Control mechanism of breaker |
-
2015
- 2015-11-20 CN CN201510816207.0A patent/CN105428106A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000331576A (en) * | 1999-05-24 | 2000-11-30 | Mitsubishi Electric Corp | Vacuum breaker device |
| CN101221864A (en) * | 2008-01-28 | 2008-07-16 | 中国电力科学研究院 | Control mechanism of breaker |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783258A (en) * | 2017-01-23 | 2017-05-31 | 天津平高智能电气有限公司 | Switching device and the high-speed switch using the device |
| CN106601545A (en) * | 2017-02-27 | 2017-04-26 | 大连理工大学 | Novel vacuum interrupter structure |
| CN107230563A (en) * | 2017-06-06 | 2017-10-03 | 思源电气股份有限公司 | Speed-sensitive switch |
| CN112490070A (en) * | 2020-11-19 | 2021-03-12 | 广东电网有限责任公司广州供电局 | Electromagnetic repulsion mechanism based on double-repulsion disc |
| CN112635232A (en) * | 2020-12-11 | 2021-04-09 | 平高集团有限公司 | Electromagnetic repulsion force quick mechanism and quick mechanical switch |
| CN112713046A (en) * | 2020-12-11 | 2021-04-27 | 平高集团有限公司 | Buffer device, operating mechanism and extremely fast on-off high-voltage switch |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20160323 |