CN204011313U - A kind of asymmetric repulsive force mechanism - Google Patents
A kind of asymmetric repulsive force mechanism Download PDFInfo
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- CN204011313U CN204011313U CN201420395926.0U CN201420395926U CN204011313U CN 204011313 U CN204011313 U CN 204011313U CN 201420395926 U CN201420395926 U CN 201420395926U CN 204011313 U CN204011313 U CN 204011313U
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Abstract
The utility model discloses a kind of asymmetric repulsive force mechanism, comprise drive link, main rapid repulsion unit, inferior rapid repulsion unit and buffer cell.Main rapid repulsion unit by movable repulsion coil and first fixedly repulsion coil form.Inferior rapid repulsion unit by movable repulsion aluminium dish and second fixedly repulsion coil form.Wherein, movable repulsion coil and movable repulsion aluminium dish are fixed on drive link, first fixedly repulsion coil and second fixedly repulsion coil be fixed on repulsive force mechanism coil mounting panel.The asymmetric repulsive force mechanism that the utility model provides makes full use of coil-coil type repulsion structure high efficiency feature under heavy load and improves repulsive force mechanism drive efficiency, by the collision reducing between repulsion dish and repulsion coil, repulsion coil and repulsion coil, extends the repulsive force mechanism life-span.Can select flexibly separating brake unit and combined floodgate unit for application scenario demand.This asymmetric repulsive force mechanism is simple in structure, is swift in motion; Drive efficiency is high, long service life, flexible operation.
Description
Technical field
The utility model belongs to repulsive force mechanism field, more specifically, relates to a kind of asymmetric repulsive force mechanism.
Background technology
Circuit breaker is the important device for switching of electric power system, and because its control function and defencive function in electric power system is difficult to substitute, the reliability service of circuit breaker seems and becomes more and more important.Given this situation, international conference on large HV electric systems (CIGRE) had once carried out investigation for several times in worldwide, and investigation shows: most of faults of circuit breaker belong to engineering properties, mainly comprise its operating mechanism, monitoring device, servicing unit.Along with electric pressure raises, the number of elements of circuit breaker operation mechanism can increase, and the probability therefore breaking down will be higher.
Traditional operation mechanism because action link is many, its response time of cumulative movement tolerance ambassador dispersed large, branch wire time is longer, and be easily subject to separately properties influence and break down.Along with the development of electron controls technology, electronic operating mechanism arises at the historic moment, and after particularly Novel permanent-magnetic operating mechanism occurs, makes electronic operation theory aspect electric switch, have broad practice and application.The advantages such as permanent-magnet operating mechanism has plurality of advantages, as simple in drive disk assembly, movement velocity is very fast, controllability is better, have adapted to modern power systems development new demand to a certain extent.The research of another electronic operating mechanism meanwhile,---electromagnetic repulsion force mechanism is also at home and abroad quietly risen.Due to its have simple in structure, the mechanical delay time is short, initial motion speed is fast, controlled good advantage makes it aspect high-speed switch research, cause that people greatly pay close attention to.
Mostly existing electromagnetic repulsion force mechanism is coil-tray type structure, and drive efficiency is lower; Meanwhile, high-speed motion has higher requirement for the intensity of repulsive force mechanism each side frequently, so the life-span of repulsion coil is generally all limited.
Utility model content
For above defect or the Improvement requirement of prior art, the purpose of this utility model is to provide a kind of asymmetric repulsive force mechanism, can improve the drive efficiency of repulsive force mechanism, the life-span that can improve to a certain extent repulsive force mechanism simultaneously.
The utility model provides a kind of asymmetric repulsive force mechanism, comprises drive link, main rapid repulsion unit, inferior rapid repulsion unit and buffer cell; Described main rapid repulsion unit comprises the first fixedly repulsion coil and movably repulsion coil that differential concatenation connects, and described movable repulsion coil is fixed on described drive link; Described time rapid repulsion unit comprises fixedly repulsion coil of movable repulsion aluminium dish and second, and described movable repulsion aluminium dish is fixed on described drive link; Described buffer cell comprises buffer unit for described drive link is cushioned and for spacing stopping means is carried out in the position of described drive link; Fixedly the overall dimension of repulsion coil is consistent with described first for the overall dimension of described movable repulsion coil.
Wherein, the overall dimension and second of described movable repulsion aluminium dish fixedly the overall dimension of repulsion coil than described first, fixedly the overall dimension of repulsion coil is little.
Wherein, the external diameter of described movable repulsion aluminium dish and described second fixedly the external diameter of repulsion coil be consistent.
Wherein, when opening velocity is had relatively high expectations, described main rapid repulsion unit is as separating brake unit, and described rapid repulsion unit is as combined floodgate unit; Described main rapid repulsion unit is arranged at the top of described rapid repulsion unit.
Wherein, during work, when high-speed switch needs separating brake, electric supply installation is fixedly repulsion coil and described movable repulsion coil discharge to described first in described main rapid repulsion unit, the pulse current opposite direction passing through in two coils, the high frequency magnetic field being produced by electric current is inverse relationship; Two magnetic field interactions produce repulsive force, promote described movable repulsion coil and move downward, and then drive described drive link to move downward, and now the described movable repulsion aluminium dish in described rapid repulsion unit is also along with described drive link moves downward; When described drive link move to necessarily open apart from after, described buffer unit can cushion described drive link; When described drive link move to repulsive force mechanism separating brake specified open apart from after; described stopping means carries out spacing to the position of described drive link again; reduce described movable repulsion aluminium dish in described rapid repulsion unit to the described second fixedly collision of repulsion coil, and then reach the fixedly object of repulsion coil of protection described movable repulsion aluminium dish and described second.
Wherein, during work, when high-speed switch need to close a floodgate, electric supply installation to second in described rapid repulsion unit fixedly repulsion coil discharge, second fixedly produces high-frequency current and high frequency magnetic field in repulsion coil; Under the effect of high frequency magnetic field, described movable repulsion aluminium dish in inferior rapid repulsion unit induces and the described second fixing reverse eddy current in repulsion coil, the second magnetic field that fixedly eddy current in the electric current in repulsion coil and movable repulsion aluminium dish produces is separately inverse relationship, and two magnetic field interactions produce repulsive force; The described movable repulsion aluminium dish that repulsive force promotes in described rapid repulsion unit moves upward, the moving described drive link of described movable repulsion aluminium dribbling moves upward, and described drive link drives the described movable repulsion coil in described main rapid repulsion unit also to move upward.
Wherein, when higher to combined floodgate rate request, described main rapid repulsion unit is as combined floodgate unit, and described rapid repulsion unit is as separating brake unit; Described rapid repulsion unit is arranged at the top of described main rapid repulsion unit.
Wherein, during work, when high-speed switch needs separating brake, electric supply installation is fixing repulsion coil discharge to described second in described rapid repulsion unit, and second fixedly produces high-frequency current and high frequency magnetic field in repulsion coil; Under the effect of high frequency magnetic field, movable repulsion aluminium dish in described rapid repulsion unit induces and the described second fixing reverse eddy current in repulsion coil, the second magnetic field that fixedly eddy current in the coil current in repulsion coil and movable repulsion aluminium dish produces is separately inverse relationship, and magnetic field interaction produces repulsive force; The described movable repulsion aluminium dish that repulsive force promotes in described rapid repulsion unit moves downward, the moving described drive link of described movable repulsion aluminium dribbling moves downward, and described drive link drives the described movable repulsion coil in described main rapid repulsion unit also to move downward; When described drive link moves to, necessarily open after distance, described buffer unit cushions described drive link; When described drive link moves to, repulsive force mechanism separating brake is specified to be opened after distance; described stopping means carries out spacing to the position of described drive link; reduce described movable repulsion coil in described main rapid repulsion unit to the described first fixedly collision of repulsion coil, and then reach the fixedly object of repulsion coil of protection described movable repulsion coil and described first.
Wherein, during work, when high-speed switch need to close a floodgate, fixedly repulsion coil and described movable repulsion coil discharge to described first in described main rapid repulsion unit, the pulse current opposite direction passing through in two coils, the high frequency magnetic field being produced by electric current is inverse relationship; Two magnetic field interactions produce repulsive force, promote described movable repulsion coil and move upward, and drive described drive link to move upward, and the described movable repulsion aluminium dish in described rapid repulsion unit, also along with drive link moves upward, finally closes a floodgate smoothly.
The utility model makes full use of the drive efficiency that coil-coil type repulsion structure good drive efficiency under heavy load improves repulsive force mechanism.Reduce the driven unit size of described rapid repulsion unit and actuating speed with the parts of protection repulsive force mechanism simultaneously, extend the repulsive force mechanism life-span.The utility model adopts unsymmetric structure, can extend the life-span of repulsive force mechanism when improving drive efficiency.
Accompanying drawing explanation
The schematic diagram of the asymmetric repulsive force mechanism that opening velocity is had relatively high expectations that Fig. 1 provides for the utility model embodiment in closing position;
The schematic diagram of the asymmetric repulsive force mechanism that opening velocity is had relatively high expectations that Fig. 2 provides for the utility model embodiment in sub-gate position;
The schematic diagram in closing position to the higher asymmetric repulsive force mechanism of combined floodgate rate request that Fig. 3 provides for the utility model embodiment;
The schematic diagram in sub-gate position to the higher asymmetric repulsive force mechanism of combined floodgate rate request that Fig. 4 provides for the utility model embodiment.
In figure, 1 is drive link; 2 is main rapid repulsion unit, and 3 is time rapid repulsion unit, and 4 is buffer cell, and 21 is the first fixing repulsion coil, and 22 is movable repulsion coil, and 31 is movable repulsion aluminium dish, and 32 is the second fixing repulsion coil, and 41 is buffer unit, and 42 is stopping means.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 shows the asymmetric repulsive force mechanism that opening velocity is had relatively high expectations that the utility model embodiment the provides schematic diagram in closing position, for convenience of explanation, only shows the part relevant to the utility model embodiment, and details are as follows:
Asymmetric repulsive force mechanism comprises drive link 1, main rapid repulsion unit 2, inferior rapid repulsion unit 3, buffer cell 4.Main rapid repulsion unit 2 comprises fixedly repulsion coil 21 of movable repulsion coil 22 and first; Inferior rapid repulsion unit 3 comprises fixedly repulsion coil 32 of movable repulsion aluminium dish 31 and second; Buffer cell 4 comprises buffer unit 41 and stopping means 42.Movable repulsion coil 22 and movable repulsion aluminium dish 31 are fixed on drive link 1, first fixedly repulsion coil 21 and second fixedly repulsion coil 32 be fixed on repulsive force mechanism coil mounting panel.Main rapid repulsion unit 2 and time rapid repulsion unit 3, for bearing the task of rapid closing and quick acting switching-off, as opening velocity is had higher requirements, select main rapid repulsion unit 2 as separating brake unit, select time rapid repulsion unit 3 as combined floodgate unit; As closing speed is had higher requirements, select main rapid repulsion unit 2 as combined floodgate unit, select time rapid repulsion unit 3 as separating brake unit.Buffer cell 4 mainly plays buffering and position-limiting action when mechanism's separating brake.This asymmetric repulsive force mechanism makes full use of coil-coil type repulsion structure high efficiency feature under heavy load and improves repulsive force mechanism drive efficiency, extends the repulsive force mechanism life-span by the collision reducing between repulsion dish and repulsion coil, repulsion coil and repulsion coil simultaneously.User can select separating brake unit and combined floodgate unit flexibly for application scenario demand.This asymmetric repulsive force mechanism is simple in structure, is swift in motion; Drive efficiency is high, long service life, flexible operation.
Wherein, the fixing higher coil of repulsion coil use drive efficiency of movable repulsion coil and first.At this, we define the drive efficiency that two coil shape ratio parameters characterize repulsion coil, and α is coil height and the ratio of coil average diameter; β is coil radial thickness and the ratio of coil average diameter.Through emulation and experimental verification, the appearance proportion factor alpha of coil is less, β is larger, and the drive efficiency of repulsive force mechanism is higher.Therefore the movable repulsion coil and first of main rapid repulsion unit fixedly repulsion coil be chosen at that to meet under workmanship condition profile scale parameter α as far as possible little, the coil specification that β is large as far as possible.For the maximization of drive efficiency, the overall dimension and first of movable repulsion coil fixedly repulsion coil is consistent.
Wherein, movable repulsion aluminium dish and second fixedly repulsion coil than in main rapid repulsion unit, first fixedly the dimensions of repulsion coil is little.The drive efficiency of inferior rapid repulsion unit mainly by second fixedly repulsion coil determine, the object of inferior rapid repulsion unit is in order reliably to complete normal divide-shut brake with relatively low speed.Therefore second fixedly repulsion coil choose external diameter fixedly repulsion coil be little than first, drive efficiency, than the coil of the first specification that fixedly repulsion coil is low, can be simplified the structure of repulsive force mechanism so to a certain extent.Movable repulsion dish is chosen aluminium dish, and the less and drive efficiency of the kinoplaszm amount of aluminium dish also can meet the demands, and for drive efficiency with this understanding maximizes, the external diameter and second of movable repulsion aluminium dish fixedly repulsion coil is consistent.
The utility model makes full use of the drive efficiency that coil-coil type repulsion structure good drive efficiency under heavy load improves repulsive force mechanism.Reduce time driven unit size of rapid repulsion unit and actuating speed with the parts of protection repulsive force mechanism simultaneously, extend the repulsive force mechanism life-span.The utility model adopts unsymmetric structure, can extend the life-span of repulsive force mechanism when improving drive efficiency.
In the utility model embodiment, the driver part of main rapid repulsion unit adopts the higher and larger-size coil of drive efficiency, and its actuating speed and drive efficiency under heavy load condition is more excellent, therefore be called main rapid repulsion unit; The driver part of inferior rapid repulsion unit adopts low and little drive coil and the repulsion dish in the more main rapid repulsion of size unit in the more main rapid repulsion of drive efficiency unit, its actuating speed and efficiency can reach normal divide-shut brake requirement, therefore be called time rapid repulsion unit.
Wherein, as shown in Figure 1, the schematic diagram of the asymmetric repulsive force mechanism that opening velocity is had relatively high expectations that the utility model embodiment provides in closing position.When opening velocity is had relatively high expectations, select main rapid repulsion unit as separating brake unit, select time rapid repulsion unit as combined floodgate unit.Wherein, 1 is drive link, and 2 is the main rapid repulsion unit for quick acting switching-off, and 3 is the inferior rapid repulsion unit closing a floodgate for normal, and 4 is buffer cell.Now, main rapid repulsion unit 2 is in 3 tops, inferior rapid repulsion unit, and separating brake unit is in top, combined floodgate unit.When high-speed switch needs separating brake, precharge capacitor group is fixedly repulsion coil 21 and 22 electric discharges of movable repulsion coil to first in main rapid repulsion unit 2, because this two coils differential concatenation connects, the pulse current opposite direction passing through in two coils, and then the high frequency magnetic field being produced by electric current is inverse relationship.Two magnetic field interactions produce repulsive force, promote movable repulsion coil and move downward, and then drive drive link to move downward, and now the movable repulsion aluminium dish 31 of time rapid repulsion unit 3 is also along with drive link 1 moves downward.When drive link 1 move to necessarily open apart from after, buffer unit 41 can cushion drive link 1.When drive link 1 move to repulsive force mechanism separating brake specified open apart from after; stopping means 42 carries out spacing to the position of drive link 1 again; this measure can reduce time movable repulsion aluminium dish 31 and the second fixedly collision of repulsion coil 32 of rapid repulsion unit 3; and then protect fixedly repulsion coil 32 of movable repulsion aluminium dish 31 and second, extend the repulsive force mechanism life-span.
Wherein, as shown in Figure 2, the schematic diagram of the asymmetric repulsive force mechanism that opening velocity is had relatively high expectations that the utility model embodiment provides in sub-gate position.When high-speed switch need to close a floodgate, precharge capacitor group to second in inferior rapid repulsion unit 3 fixedly repulsion coil 32 discharge, and then produce high-frequency current and high frequency magnetic field.Under the effect of high frequency magnetic field, the movable repulsion aluminium dish 31 in inferior rapid repulsion unit 3 induces and the second fixing reverse eddy current in repulsion coil 32, and the magnetic field that coil current and eddy current produce is separately inverse relationship, and two magnetic field interactions produce repulsive force.The movable repulsion aluminium dish that thrust promotes in time rapid repulsion unit moves upward, and movable repulsion aluminium dish 31 drives drive link 1 to move upward, and drive link 1 drives the movable repulsion coil 22 in main rapid repulsion unit 2 also to move upward.Due to the speed of closing a floodgate is not had to high requirement, because the movement velocity of the movable repulsion aluminium dish 31 of this rapid repulsion unit 3 is as long as can guarantee normally combined floodgate.
Wherein, as shown in Figure 3, the schematic diagram in closing position to the higher asymmetric repulsive force mechanism of combined floodgate rate request that the utility model embodiment provides.When higher to combined floodgate rate request, select main rapid repulsion unit 2 as combined floodgate unit, select time rapid repulsion unit 3 as separating brake unit.Wherein, 1 is drive link, and 2 is the main rapid repulsion unit for rapid closing, and 3 is that 4 is buffer cell for the inferior rapid repulsion unit of normal separating brake.Now, inferior rapid repulsion unit 3 is in 2 tops, main rapid repulsion unit, and separating brake unit is in top, combined floodgate unit.When high-speed switch need to close a floodgate, precharge capacitor group is fixedly repulsion coil 32 electric discharges to second in inferior rapid repulsion unit 3, and then produce high-frequency current and high frequency magnetic field.Under the effect of high frequency magnetic field, the movable repulsion aluminium dish 31 in inferior rapid repulsion unit 3 induces and the second fixing reverse eddy current in repulsion coil 32, and the magnetic field that coil current and eddy current produce is separately inverse relationship, and magnetic field interaction produces repulsive force.The movable repulsion aluminium dish that thrust promotes in time rapid repulsion unit moves downward, and movable repulsion aluminium dish 31 drives drive link 1 to move downward, and drive link 1 drives the movable repulsion coil 22 in main rapid repulsion unit 2 also to move downward.When drive link 1 move to necessarily open apart from after, buffer unit 41 can cushion drive link 1.When drive link 1 move to repulsive force mechanism separating brake specified open apart from after; stopping means 42 carries out spacing to the position of drive link 1 again; this measure can reduce the fixedly collision of repulsion coil 21 of movable repulsion coil 22 and first of main rapid repulsion unit 2; and then protect fixedly repulsion coil 21 of movable repulsion coil 22 and first, extend the repulsive force mechanism life-span.
Wherein, as shown in Figure 4, the schematic diagram in sub-gate position to the higher asymmetric repulsive force mechanism of combined floodgate rate request that the utility model embodiment provides.When high-speed switch need to close a floodgate, precharge capacitor group is fixedly repulsion coil 21 and 22 electric discharges of movable repulsion coil to first in main rapid repulsion unit 2, because this two coils differential concatenation connects, the pulse current opposite direction passing through in two coils, and then the high frequency magnetic field being produced by electric current is inverse relationship.Two magnetic field interactions produce repulsive force, promote movable repulsion coil 22 and move upward, and then drive drive link 1 to move upward, and now the movable repulsion aluminium dish 31 in time rapid repulsion unit 3 is also along with drive link 1 moves upward.What adopt due to combined floodgate unit is the main rapid repulsion unit 2 that drive efficiency is higher, can realize rapid closing.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (5)
1. an asymmetric repulsive force mechanism, is characterized in that, comprises drive link (1), main rapid repulsion unit (2), inferior rapid repulsion unit (3) and buffer cell (4);
Described main rapid repulsion unit (2) comprises the first fixedly repulsion coil (21) and movably repulsion coil (22) that differential concatenation connects, and described movable repulsion coil (22) is fixed on described drive link (1); Described rapid repulsion unit (3) comprises fixedly repulsion coil (32) of movable repulsion aluminium dish (31) and second, and described movable repulsion aluminium dish (31) is fixed on described drive link (1);
Described buffer cell (4) comprises the buffer unit (41) that described drive link (1) is cushioned and spacing stopping means (42) is carried out in the position of described drive link (1);
Fixedly the overall dimension of repulsion coil (21) is consistent with described first for the overall dimension of described movable repulsion coil (22).
2. asymmetric repulsive force mechanism as claimed in claim 1, it is characterized in that, the overall dimension and second of described movable repulsion aluminium dish (31) fixedly the overall dimension of repulsion coil (32) than described first, fixedly the overall dimension of repulsion coil (21) is little.
3. asymmetric repulsive force mechanism as claimed in claim 1 or 2, is characterized in that, the external diameter of described movable repulsion aluminium dish (31) with described second fixedly the external diameter of repulsion coil (32) equate.
4. asymmetric repulsive force mechanism as claimed in claim 1, is characterized in that, when opening velocity is had relatively high expectations, described main rapid repulsion unit (2) is as separating brake unit, and described rapid repulsion unit (3) is as combined floodgate unit; Described main rapid repulsion unit (2) is arranged at the top of described rapid repulsion unit (3).
5. asymmetric repulsive force mechanism as claimed in claim 1, is characterized in that, when higher to combined floodgate rate request, described main rapid repulsion unit (2) is as combined floodgate unit, and described rapid repulsion unit (3) is as separating brake unit; Described rapid repulsion unit (3) is arranged at the top of described main rapid repulsion unit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420395926.0U CN204011313U (en) | 2014-07-17 | 2014-07-17 | A kind of asymmetric repulsive force mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420395926.0U CN204011313U (en) | 2014-07-17 | 2014-07-17 | A kind of asymmetric repulsive force mechanism |
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| CN204011313U true CN204011313U (en) | 2014-12-10 |
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| CN201420395926.0U Expired - Fee Related CN204011313U (en) | 2014-07-17 | 2014-07-17 | A kind of asymmetric repulsive force mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124110A (en) * | 2014-07-17 | 2014-10-29 | 华中科技大学 | Non-symmetric repulsion mechanism |
| CN108933060A (en) * | 2018-07-25 | 2018-12-04 | 西安交通大学 | A kind of cascade connection type long stroke electromagnetic repulsion mechanism and divide-shut brake fastener system |
-
2014
- 2014-07-17 CN CN201420395926.0U patent/CN204011313U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124110A (en) * | 2014-07-17 | 2014-10-29 | 华中科技大学 | Non-symmetric repulsion mechanism |
| CN104124110B (en) * | 2014-07-17 | 2016-05-25 | 华中科技大学 | A kind of asymmetric repulsive force mechanism |
| CN108933060A (en) * | 2018-07-25 | 2018-12-04 | 西安交通大学 | A kind of cascade connection type long stroke electromagnetic repulsion mechanism and divide-shut brake fastener system |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20160717 |