CN107331585B - A kind of electromagnetic repulsion mechanism of frequency-adjustable speed-adjustable - Google Patents
A kind of electromagnetic repulsion mechanism of frequency-adjustable speed-adjustable Download PDFInfo
- Publication number
- CN107331585B CN107331585B CN201710437519.XA CN201710437519A CN107331585B CN 107331585 B CN107331585 B CN 107331585B CN 201710437519 A CN201710437519 A CN 201710437519A CN 107331585 B CN107331585 B CN 107331585B
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- Prior art keywords
- control switch
- conducting control
- conducting
- storage capacitor
- energy
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- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 239000003990 capacitor Substances 0.000 claims abstract description 32
- 238000004146 energy storage Methods 0.000 claims abstract description 26
- 239000002184 metal Substances 0.000 claims abstract description 6
- 230000001939 inductive effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/42—Induction-motor, induced-current, or electrodynamic release mechanisms
Landscapes
- Braking Arrangements (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a kind of electromagnetic repulsion mechanisms of frequency-adjustable speed-adjustable, including energy-storage capacitor, the first conducting control switch, the second conducting control switch, third conducting control switch, the 4th conducting control switch, controller, resonant capacitance, the high voltage charging power supply for powering for energy-storage capacitor and the divide-shut brake coil for inducing vortex in extraneous metal repulsion dish, the mechanical output characteristics adjusting of the mechanism is more convenient, and the requirement to energy-storage capacitor is lower.
Description
Technical field
The present invention relates to a kind of electromagnetic repulsion mechanisms, and in particular to a kind of electromagnetic repulsion mechanism of frequency-adjustable speed-adjustable.
Background technique
The basic principle of breaker electromagnetic repulsion mechanism is, by the energy-storage capacitor of precharge to separating brake or closing coil
Electric discharge generates pulse current, under the action of impulse current magnetic field, vortex is induced in metal repulsion dish and generates electromagnetism reprimand
Power, and drive link motion.Since the transient eddy currents electromagnetic repulsion force that repulsion dish generate is big, linkage part is linear running knot
Structure, transmission link structure is simple, reliable, movement inertia is small, therefore can be realized the quick-speed turning on-off of switch or close, in recent years
Extensive research and attention are arrived.
Currently, repulsive force mechanism, in switching on and off operating process, the energy of energy pre-storage capacitor group is via conducting control switch
It disposably is discharged into divide-shut brake wire loop, (Liu Mingming, Yang Chaoyu, Chen Wei wait with the driving current that provides divide-shut brake coil
It is vortexed the principle and analysis [J] magnetic element and power supply of rapid repulsion mechanism, 2013 (8): 121-126.).Based on the above control
Mode, storage capacitor answer capacitance and charging voltage with higher, and internal impedance and dynamic stability should also meet single-impulse
Electric discharge requirement, it is larger that factors above causes energy-storage capacitor unit volume, it is difficult to miniaturization and higher cost.
In addition, the power output feature of repulsive force mechanism single-impulse, lead to that it is poor with the matching of combined floodgate load characteristic (Tian Yu,
The severe Lou of Zhu, Xu Jiayuan wait quick split-phase breaker prototype design [J] the electric power network technique of .10kV, 2015,39 (8): 2346-
2350.), the mechanical property of motion process is also difficult to effectively adjust.For example, by increasing storage capacitor capacity, to improve behaviour
The action time of work done and electromagnetic repulsion force, but this method will lead to electromagnetic repulsion force rising edge and slow down, with the initial fortune for improving mechanism
Dynamic speed, the requirement for shortening intrinsic opening time contradict that (Jiang Zhuanxian, Zhuan Jingwu, Wang Chen are waited and driven in electromagnetic repulsion mechanism
Influence [J] the ship power technology of capacitance parameter to contact initial electric gap, 2012,32 (2): 1-4.)；It for another example, is extended line
The actuation duration of circle improves the divide-shut brake speed of switch, and (prince builds document, He Junjia, Yin little Gen, and is waited to be based on electromagnetic repulsion force machine
The 10kV fast vacuum of structure switchs [J] electrotechnics journal, 2009,24 (11): 68-75.) discharge circuit has been carried out it is special
Design, using pulse forming network (PFN), by controlling the triggering timing of discharge module, pulse current required for being superimposed out
Waveform, but limited by coil power supply power supply scale, complexity, biggish limitation is faced in practical applications.
In conclusion current single-impulse energisation mode, to the model of repulsive force mechanism energy-storage capacitor, capacity, charging
Voltage proposes higher requirement；Secondly, divide-shut brake coil, under single pulse excitation mode, mechanical output characteristics is difficult to effectively adjust
Section.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, a kind of electrodynamic repulsion force machine of frequency-adjustable speed-adjustable is provided
The mechanical output characteristics adjusting of structure, the mechanism is more convenient, and the requirement to energy-storage capacitor is lower.
In order to achieve the above objectives, the electromagnetic repulsion mechanism of frequency-adjustable speed-adjustable of the present invention includes energy-storage capacitor, first
Control switch, the second conducting control switch, third conducting control switch, the 4th conducting control switch, controller, resonance electricity is connected
Appearance, the high voltage charging power supply for powering for energy-storage capacitor and point for inducing vortex in extraneous metal repulsion dish
Closing coil；
One end of energy-storage capacitor is connected with one end of one end of the first conducting control switch and third conducting control switch
It connects, the other end of the first conducting control switch is connected with one end of one end of resonant capacitance and the second conducting control switch, humorous
The other end of vibration capacitor is connected with one end of divide-shut brake coil, and control switch is connected with third in the other end of divide-shut brake coil
One end of the other end and the 4th conducting control switch is connected, and the other end of energy-storage capacitor is another with the second conducting control switch
The other end of one end and the 4th conducting control switch is connected, and controller is connected the control terminal of control switch with first, second leads
The control terminal of the control terminal of logical control switch, the control terminal of third conducting control switch and the 4th conducting control switch is connected.
The first conducting control switch, the second conducting control switch, third conducting control switch and the 4th conducting control
Switch is insulation bipolar transistor.
The invention has the following advantages:
The electromagnetic repulsion mechanism of frequency-adjustable speed-adjustable of the present invention passes through resonant capacitance and division brake cable when specific operation
The load branch that circle is formed carries out high-frequency resonant, significantly improves the power density for being injected into divide-shut brake coil, improves repulsion machine
The operating work of structure；Controller controls each conducting control switch by pulse modulated mode simultaneously, to division during actuating
The injecting power of brake cable circle is adjusted, so that mechanical power producing characteristics and speed characteristics are adjustable during implementation mechanism power is dynamic
Purpose, operate it is relatively simple, conveniently, avoid traditional repulsive force mechanism under pulse processing mode with circuit breaker load characteristics match
The poor problem of ability, while the requirement to energy-storage capacitor is lower.
Detailed description of the invention
Fig. 1 is the principle of the present invention figure.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
With reference to Fig. 1, the electromagnetic repulsion mechanism of frequency-adjustable speed-adjustable of the present invention includes energy-storage capacitor Cs, the first conducting control
It makes switch Q1, the second conducting control switch Q2, third conducting control switch Q3, the 4th control switch Q4, controller W, humorous be connected
Shake capacitor C, the high voltage charging power supply S for powering for energy-storage capacitor Cs and for inducing in extraneous metal repulsion dish
The divide-shut brake coil Lcoil of vortex；One end of energy-storage capacitor Cs is connected with one end of the first conducting control switch Q1 and third
One end of control switch Q3 is connected, the other end and one end of resonant capacitance C and the second conducting of the first conducting control switch Q1
One end of control switch Q2 is connected, and the other end of resonant capacitance C is connected with one end of divide-shut brake coil Lcoil, divide-shut brake
One end of control switch Q3 is connected with third for the other end of coil Lcoil the other end and the 4th conducting control switch Q4 is connected
It connects, the another of control switch Q4 is connected with the other end of the second conducting control switch Q2 and the 4th in the other end of energy-storage capacitor Cs
End is connected, control terminal, the third of the control terminal of the conducting of controller W and first control switch Q1, the second conducting control switch Q2
The control terminal of control terminal and the 4th conducting control switch Q4 that control switch Q3 is connected is connected.
The first conducting control switch Q1, the second conducting control switch Q2, third conducting control switch Q3 and the 4th are led
Logical control switch Q4 is insulation bipolar transistor.
The present invention generates the friendship of certain frequency by inversion or impulse circuit mode using energy-storage capacitor Cs as DC power supply
Stream or pulse simultaneously export, then the exchange or Pulsed current injection are passed through divide-shut brake coil into divide-shut brake coil Lcoil
Lcoil induces vortex in metal repulsion dish, and generates electromagnetic repulsion force, to drive link motion.
It should be noted that impulse modulation mode can be used and control each conducting control in above-mentioned inversion or impulse circuit
The working frequency of switch, thus during obtaining means actuating mechanical output characteristics controllability.
With reference to Fig. 1, high voltage charging power supply S is to energy-storage capacitor CSIt charges；Divide-shut brake coil Lcoil and resonant capacitance
C load branch in series；Load branch and the first conducting control switch Q1, the second conducting control switch Q2, third conducting are controlled
The conducting of system switch Q3 and the 4th control switch Q4 connects and composes H bridge series resonant circuit；Energy-storage capacitor Cs and H bridge series resonance
The both ends of circuit connect.
For the requirement for meeting biggish resonance current power density, high reliability and low cost, the first conducting control switch
Q1, the second conducting control switch Q2, the third conducting of conducting control switch Q3 and the 4th control switch Q4 select the bipolar crystalline substance of insulation
Body pipe.
Since the electric current of load branch is sine wave, when each switch time that control switch is connected may be set in zero current
It carves, conducting control situation are as follows: when control switch Q2 conducting is connected in the first conducting control switch Q1 and second, third conducting control is opened
Close the conducting control switch Q4 cut-off of Q3 and the 4th；It is on the contrary then are as follows: first conducting control switch Q1 and second conducting control switch Q2
When cut-off, the conducting control switch Q4 conducting of control switch Q3 and the 4th is connected in third.
Resonance current frequency of the invention determines that highest frequency is reachable by divide-shut brake coil Lcoil and resonant capacitance C
50kHz；
The present invention controls the first conducting control switch Q1, the second conducting control switch Q2, third using impulse modulation mode
The working frequency of the conducting of control switch Q3 and the 4th control switch Q4 is connected, so that mechanical power output is special during obtaining means actuating
Property, the controllability of speed characteristics；By adjusting and controlling the turn-on frequency of H bridge series resonant circuit, divide-shut brake coil is adjusted
The input power of Lcoil and the mechanical property of mechanism.
Energy-storage capacitor C in the present inventionSIt charges during the conducting of H bridge series resonant circuit to the resonant capacitance C of low capacity,
Therefore, energy-storage capacitor CSLarge capacity can be selected, it is small in size, and the lower electrolytic capacitor of price.
Claims (2)
1. a kind of electromagnetic repulsion mechanism of frequency-adjustable speed-adjustable, which is characterized in that opened including energy-storage capacitor (Cs), the first conducting control
Close (Q1), the second conducting control switch (Q2), third conducting control switch (Q3), the 4th conducting control switch (Q4), controller
(W), resonant capacitance (C), for for energy-storage capacitor (Cs) power supply high voltage charging power supply (S) and for extraneous metal denounce
The divide-shut brake coil (Lcoil) of vortex is induced in power disk；
Control switch (Q3) is connected with one end of the first conducting control switch (Q1) and third in one end of energy-storage capacitor (Cs)
One end is connected, the other end and the one end of resonant capacitance (C) and the second conducting control switch of the first conducting control switch (Q1)
(Q2) one end is connected, and the other end of resonant capacitance (C) is connected with one end of divide-shut brake coil (Lcoil), division brake cable
The other end of control switch (Q3) and one end phase of the 4th conducting control switch (Q4) are connected with third for the other end of circle (Lcoil)
The other end of connection, the other end of energy-storage capacitor (Cs) and the second conducting control switch (Q2) and the 4th conducting control switch
(Q4) the other end is connected, control terminal, second conducting control switch of the controller (W) with the first conducting control switch (Q1)
(Q2) control terminal of control terminal, third conducting control switch (Q3) and the control terminal of the 4th conducting control switch (Q4) are connected
It connects, high voltage charging power supply (S) is connected with energy-storage capacitor (Cs).
2. the electromagnetic repulsion mechanism of frequency-adjustable speed-adjustable according to claim 1, which is characterized in that the first conducting control is opened
It is exhausted for closing (Q1), the second conducting control switch (Q2), third conducting control switch (Q3) and the 4th conducting control switch (Q4)
Edge bipolar transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710437519.XA CN107331585B (en) | 2017-06-09 | 2017-06-09 | A kind of electromagnetic repulsion mechanism of frequency-adjustable speed-adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710437519.XA CN107331585B (en) | 2017-06-09 | 2017-06-09 | A kind of electromagnetic repulsion mechanism of frequency-adjustable speed-adjustable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107331585A CN107331585A (en) | 2017-11-07 |
| CN107331585B true CN107331585B (en) | 2019-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710437519.XA Expired - Fee Related CN107331585B (en) | 2017-06-09 | 2017-06-09 | A kind of electromagnetic repulsion mechanism of frequency-adjustable speed-adjustable |
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| Country | Link |
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| CN (1) | CN107331585B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5243472A (en) * | 1991-08-29 | 1993-09-07 | Minnesota Mining And Manufacturing Company | Series resonant AC erase head drive circuit |
| CN102624263A (en) * | 2012-02-23 | 2012-08-01 | 陈一定 | Series resonant converter with capacitance bridge and inductance bridge combination |
| CN103703676A (en) * | 2011-04-22 | 2014-04-02 | 大陆汽车系统美国有限公司 | Synchronous full-bridge power oscillator |
-
2017
- 2017-06-09 CN CN201710437519.XA patent/CN107331585B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5243472A (en) * | 1991-08-29 | 1993-09-07 | Minnesota Mining And Manufacturing Company | Series resonant AC erase head drive circuit |
| CN103703676A (en) * | 2011-04-22 | 2014-04-02 | 大陆汽车系统美国有限公司 | Synchronous full-bridge power oscillator |
| CN102624263A (en) * | 2012-02-23 | 2012-08-01 | 陈一定 | Series resonant converter with capacitance bridge and inductance bridge combination |
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| Publication number | Publication date |
|---|---|
| CN107331585A (en) | 2017-11-07 |
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