CN109887811A - High speed repulsion device suitable for mechanical high-voltage dc circuit breaker - Google Patents
High speed repulsion device suitable for mechanical high-voltage dc circuit breaker Download PDFInfo
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- CN109887811A CN109887811A CN201910256078.2A CN201910256078A CN109887811A CN 109887811 A CN109887811 A CN 109887811A CN 201910256078 A CN201910256078 A CN 201910256078A CN 109887811 A CN109887811 A CN 109887811A
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Abstract
The present invention relates to a kind of high speed repulsion devices suitable for mechanical high-voltage dc circuit breaker, opening coil and closing coil are wound on iron core up and down at one opening port for not closing open rectangle iron core, moving conductive rod is close to and along iron core opening direction across opening coil, the fixed metal repulsion dish in one end of moving conductive rod, and moving conductive rod and metal repulsion dish are connected as a mass motion, so that metal repulsion dish are between opening coil and closing coil, coil obtains electric generation high frequency changing magnetic field, vortex is induced in metal repulsion dish, push the movement of metal repulsion dish, execute separating brake or combined floodgate.The fast-changing magnetic field overwhelming majority that coil can be guided to generate after ferromagnetic material is introduced into passes through from metal repulsion dish, the vortex generated in this way just will increase, to increase repulsion, very big capacitance or very high capacitance voltage value are not needed when so that generating identical repulsion, reduce entire high speed repulsion device volume, cost reduces.
Description
Technical field
It is the present invention relates to a kind of high voltage DC breaker, in particular to a kind of suitable for mechanical high-voltage dc circuit breaker
High speed repulsion device.
Background technique
Rapid repulsion mechanism is provided for high voltage DC breaker and is quickly closed and breaking operation.Rapid repulsion mechanism structure
Simply, it is only made of closing coil and opening coil and a metal repulsion dish, as shown in Figure 1.Opening coil and closing line
Circle is the same, is all hollow single layer coil, as shown in Figure 2.Fig. 3 is the capacitor and corresponding circuit energized to repulsive force mechanism coil
Figure, is passed through electric current to coil L from the control loop of coil L shown in Fig. 3, and high frequency changing magnetic field is generated in coil L, becomes
The magnetic field of change induces vortex in metal repulsion dish P, and the current direction in vortex and coil is on the contrary, push metal repulsion dish P
Movement.Here it is the principles of rapid repulsion mechanism.But the efficiency of this mechanism is very low, a large amount of magnetic field that hollow coil generates
By air self-contained circuit, without generating high speed in metal dish against the electric current of high speed variation originally in this way by metal dish
Changing magnetic field and generate vortex to form repulsion, but when the magnetic field of coil all not over metal dish when energy utilization
Rate is obviously just very low, and the utilization rate for testing out structure shown in FIG. 1 at present is no more than 12%.As can improving the energy of repulsive force mechanism
Amount utilization rate can greatly reduce the volume of all parts for energizing.Otherwise for the realization of assurance function, Zhi Nengzeng
The capacitance or charging voltage of the capacitor C of big hollow coil energy supply, so that the volume of integral device will increase.Very
High voltage DC breaker volume is required to want small under more applications.
Summary of the invention
The present invention be directed to the low problems of rapid repulsion mechanism energy utilization rate used in present high voltage DC breaker, mention
Go out a kind of high speed repulsion device suitable for mechanical high-voltage dc circuit breaker, improves the utilization rate of repulsion device energy, together
When reduce integral device volume.
The technical solution of the present invention is as follows: a kind of high speed repulsion device suitable for mechanical high-voltage dc circuit breaker, including
Closing coil, opening coil, metal repulsion dish and control circuit, control circuit discharge to closing coil or opening coil,
High frequency changing magnetic field is generated in closing coil or opening coil, changing magnetic field induces vortex in metal repulsion dish, pushes away
Dynamic metal repulsion dish movement, realizes separating brake or combined floodgate；Further include one do not close open rectangle iron core and a ferromagnetic material or
Moving conductive rod of the metal poles that person's nonferromagnetic material is made into as repulsive force mechanism；One is not closed the opening of open rectangle iron core
Opening coil and closing coil are wound with above and below at port on iron core, moving conductive rod is close to and along iron core opening direction across separating brake
Coil, the fixed metal repulsion dish in one end of moving conductive rod, and moving conductive rod and metal repulsion dish are connected as a mass motion,
So that metal repulsion dish are between opening coil and closing coil, and can move up and down in the opening air section of rectangle iron core,
Execute separating brake or combined floodgate.
A kind of high speed repulsion device suitable for mechanical high-voltage dc circuit breaker, including closing coil, opening coil, gold
Belong to repulsion dish and control circuit, control circuit discharges to closing coil or opening coil, in closing coil or opening coil
High frequency changing magnetic field is generated, changing magnetic field induces vortex in metal repulsion dish, pushes the movement of metal repulsion dish, realizes
Separating brake or combined floodgate；Further including one does not close the metal that open rectangle iron core and a ferromagnetic material or nonferromagnetic material are made into
Moving conductive rod of the pole as repulsive force mechanism；It is wound on iron core up and down at one opening port for not closing open rectangle iron core point
Brake cable circle and closing coil, moving conductive rod close to and along iron core opening direction pass through opening coil, air section and closing coil,
Metal repulsion dish are annular shape, cover and are fixed among moving conductive rod, and moving conductive rod and metal repulsion dish are connected as one
A mass motion, so that metal repulsion dish are between opening coil and closing coil, and can be in the opening air of rectangle iron core
Section moves up and down, and executes separating brake or combined floodgate.
The magnetic circuit of the high frequency changing magnetic field includes part in ferromagnetic material iron core and the part in opening air section,
Opening air section in the length of magnetic path be numerically equal to mechanical high-voltage dc circuit breaker open away from.
The size for not closing open rectangle iron core is designed according to the magnetic field that electric current in coil generates, and is guaranteed in high frequency
In changing magnetic field, the magnetic field in iron core is not at saturation state.
The beneficial effects of the present invention are: the present invention is suitable for the high speed repulsion device of mechanical high-voltage dc circuit breaker,
The fast-changing magnetic field overwhelming majority that coil can be guided to generate after ferromagnetic material is introduced into passes through from metal repulsion dish, this
The vortex that sample generates just will increase, to increase repulsion, do not needed when so that generating identical repulsion very big capacitance or
The very high capacitance voltage value of person, so that entire high speed repulsion device volume reduces, and cost reduces.
Detailed description of the invention
Fig. 1 is existing rapid repulsion mechanism chief component schematic diagram；
Fig. 2 is the opening coil and closing line loop graph of existing repulsive force mechanism；
Fig. 3 is the existing capacitor and corresponding circuit diagram energized to repulsive force mechanism coil；
Fig. 4 is the high speed repulsion apparatus structure signal that the embodiment of the present invention one is suitable for mechanical high-voltage dc circuit breaker
Figure；
Fig. 5 is the high speed repulsion apparatus structure signal that the embodiment of the present invention two is suitable for mechanical high-voltage dc circuit breaker
Figure.
Specific embodiment
In order to live the magnetically confined in coil, not allowing a large amount of magnetic field to form closure without passing through metal repulsion dish
Field circuit.The present invention is directed in iron core by ferromagnetic material with the magnetically confined for generating coil, is designed new
The high speed repulsion device of type, embodiment one as shown in Figure 4 are suitable for the high speed repulsion device knot of mechanical high-voltage dc circuit breaker
Structure schematic diagram is wound with opening coil and closing coil on iron core up and down at one opening port for not closing open rectangle iron core,
Moving conductive rod of the metal poles that one ferromagnetic material or nonferromagnetic material are made into as repulsive force mechanism, close to and along iron core
Opening direction passes through opening coil, and the fixed metal repulsion dish in one end of moving conductive rod, moving conductive rod and metal repulsion dish are connected as
One entirety, so that metal repulsion dish are between opening coil and closing coil, and can be above and below the opening air section of iron core
It is mobile.The electric current of high frequency variation, the magnetic field that electric current generates are flowed through in coil when control circuit shown in Fig. 3 is to coil discharge
It is that high frequency changes, the magnetic circuit in the magnetic field includes the part in ferromagnetic material iron core and the part in opening air section.Opening is empty
The length of magnetic path in gas section be numerically equal to mechanical high-voltage dc circuit breaker open away from.Thus a large amount of magnetically confined is existed
In air section where metal repulsion dish.This structure is still by repulsion dish and pushes switch closing and switch opening.Flow through coil
The frequency of electric current isL is the inductance of separating brake or combined floodgate hollow coil in formula, and C is to opening coil or combined floodgate
The capacitor of coil discharge.Since coil has part iron core, the inductance of coil be will increase, and can thus make the capacitance needed
Reduce.Electric coil has part iron core, and the inductance of coil will increase, and the capacitance needed can thus reduced.Capacitance
The volume of smaller selected capacitor is smaller, has also achieved the effect for reducing volume in this way.Energy storage is also had on moving conductive rod in Fig. 4
Holding meanss.With a mechanical projecting device come so that when separating brake distance reach scheduled separating brake apart from when moving conductive rod on
Prominent metal parts just drives energy storage to keep spring movement and energy storage.
The size of iron core is according to electric current in coil in the embodiment figure of efficient high speed repulsive force mechanism shown in Fig. 4
The magnetic field of generation is designed, as long as the cross-sectional area of iron core is enough, is guaranteed in high frequency changing magnetic field, the magnetic field in iron core is not
It can be in a saturated state.In addition planar coil can be used for the design of coil, multilayer multiturn coil can also be used.
The implementation embodiment two of the efficient high speed repulsive force mechanism of another kind design is as shown in Figure 5.Moving conductive rod is very long,
Moving conductive rod passes through opening coil, air section, closing coil close to and along iron core opening direction, and metal repulsion dish are annulus
Shape is covered and is fixed among moving conductive rod, and metal moving conductive rod smooth in the core can move without resistance, so that metal
Repulsion dish can be moved up and down in the opening air section of rectangle iron core, and energy storage keeps spring section to be located at lower part.Structure shown in Fig. 5 exists
The repulsion that repulsive force mechanism needs to generate when closing and cut-offfing is comparatively bigger than Fig. 4, because the quality of moving part increases, but
Because iron core locks the effect of magnetic, more much smaller than repulsion needed for existing structure.The apparatus structure feature of Fig. 5 is that space length is unrestricted
It is more convenient when system therefore installation, debugging mechanism.
Claims (4)
1. a kind of high speed repulsion device suitable for mechanical high-voltage dc circuit breaker, including closing coil, opening coil, metal
Repulsion dish and control circuit, control circuit are discharged to closing coil or opening coil, are produced in closing coil or opening coil
Raw high frequency changing magnetic field, changing magnetic field induce vortex in metal repulsion dish, push the movement of metal repulsion dish, realize and divide
Lock or combined floodgate；It is characterized in that, further including one does not close open rectangle iron core and a ferromagnetic material or nonferromagnetic material
Moving conductive rod of the metal poles being made into as repulsive force mechanism；Double layer iron at one opening port for not closing open rectangle iron core
Opening coil and closing coil are wound on core, moving conductive rod is close to and along iron core opening direction across opening coil, moving conductive
The fixed metal repulsion dish in one end of bar, and moving conductive rod and metal repulsion dish are connected as a mass motion, so that metal is denounceed
Power disk can move up and down between opening coil and closing coil in the opening air section of rectangle iron core, execute separating brake or
It closes a floodgate.
2. a kind of high speed repulsion device suitable for mechanical high-voltage dc circuit breaker, including closing coil, opening coil, metal
Repulsion dish and control circuit, control circuit are discharged to closing coil or opening coil, are produced in closing coil or opening coil
Raw high frequency changing magnetic field, changing magnetic field induce vortex in metal repulsion dish, push the movement of metal repulsion dish, realize and divide
Lock or combined floodgate；It is characterized in that, further including one does not close open rectangle iron core and a ferromagnetic material or nonferromagnetic material
Moving conductive rod of the metal poles being made into as repulsive force mechanism；Double layer iron at one opening port for not closing open rectangle iron core
Opening coil and closing coil are wound on core, moving conductive rod is close to and along iron core opening direction across opening coil, air section
And closing coil, metal repulsion dish are annular shape, cover and are fixed among moving conductive rod, and moving conductive rod and metal repulsion
Disk is connected as a mass motion, so that metal repulsion dish are between opening coil and closing coil, and can be in rectangle iron core
Opening air section move up and down, execute separating brake or combined floodgate.
3. the high speed repulsion device according to claim 1 or claim 2 suitable for mechanical high-voltage dc circuit breaker, feature exist
In the magnetic circuit of the high frequency changing magnetic field includes the part in ferromagnetic material iron core and the part in opening air section, opening
The length of magnetic path in air section be numerically equal to mechanical high-voltage dc circuit breaker open away from.
4. the high speed repulsion device according to claim 1 or claim 2 suitable for mechanical high-voltage dc circuit breaker, feature exist
In the size for not closing open rectangle iron core is designed according to the magnetic field that electric current in coil generates, and guarantees to change in high frequency
Magnetic field in, the magnetic field in iron core is not at saturation state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910256078.2A CN109887811B (en) | 2019-04-01 | 2019-04-01 | High-speed repulsion device suitable for mechanical high-voltage direct-current circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910256078.2A CN109887811B (en) | 2019-04-01 | 2019-04-01 | High-speed repulsion device suitable for mechanical high-voltage direct-current circuit breaker |
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| CN109887811A true CN109887811A (en) | 2019-06-14 |
| CN109887811B CN109887811B (en) | 2020-10-09 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05242768A (en) * | 1992-02-27 | 1993-09-21 | Meidensha Corp | Dc high speed breaker |
| DE202004013965U1 (en) * | 2003-09-08 | 2005-01-27 | Delixi Group Co., Ltd. | Solenoid type permanent magnet trigger mechanism for electronic overload relay has L-shaped tongue element for magnetic connection to electromagnetic system so rod element and attached components can move horizontally |
| CN101783263A (en) * | 2010-02-04 | 2010-07-21 | 东南大学 | Bistable-state permanent magnet mechanism of parallel magnetic circuits |
| CN102013317A (en) * | 2010-07-12 | 2011-04-13 | 吴江市变压器厂有限公司 | Reshaping clamp of single-phase rectangular open coiled iron core windings |
| CN201796811U (en) * | 2010-08-13 | 2011-04-13 | 河南森源电气股份有限公司 | Indoor operating mechanism for high-voltage vacuum circuit breakers |
| CN107275145A (en) * | 2017-06-08 | 2017-10-20 | 山东泰开高压开关有限公司 | A kind of Quick mechanical formula switch and the high-voltage electric power system switched using the Quick mechanical formula |
| CN108172452A (en) * | 2018-01-19 | 2018-06-15 | 合肥朗辉电气有限公司 | A kind of device of ac high-voltage high current high-speed switch |
| CN208157317U (en) * | 2018-05-21 | 2018-11-27 | 华中科技大学 | A kind of electromagnetic repulsion mechanism based on asymmetric compound formula repulsion dish |
-
2019
- 2019-04-01 CN CN201910256078.2A patent/CN109887811B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05242768A (en) * | 1992-02-27 | 1993-09-21 | Meidensha Corp | Dc high speed breaker |
| DE202004013965U1 (en) * | 2003-09-08 | 2005-01-27 | Delixi Group Co., Ltd. | Solenoid type permanent magnet trigger mechanism for electronic overload relay has L-shaped tongue element for magnetic connection to electromagnetic system so rod element and attached components can move horizontally |
| CN101783263A (en) * | 2010-02-04 | 2010-07-21 | 东南大学 | Bistable-state permanent magnet mechanism of parallel magnetic circuits |
| CN102013317A (en) * | 2010-07-12 | 2011-04-13 | 吴江市变压器厂有限公司 | Reshaping clamp of single-phase rectangular open coiled iron core windings |
| CN201796811U (en) * | 2010-08-13 | 2011-04-13 | 河南森源电气股份有限公司 | Indoor operating mechanism for high-voltage vacuum circuit breakers |
| CN107275145A (en) * | 2017-06-08 | 2017-10-20 | 山东泰开高压开关有限公司 | A kind of Quick mechanical formula switch and the high-voltage electric power system switched using the Quick mechanical formula |
| CN108172452A (en) * | 2018-01-19 | 2018-06-15 | 合肥朗辉电气有限公司 | A kind of device of ac high-voltage high current high-speed switch |
| CN208157317U (en) * | 2018-05-21 | 2018-11-27 | 华中科技大学 | A kind of electromagnetic repulsion mechanism based on asymmetric compound formula repulsion dish |
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