CN104197778A - Arc-shaped multipole-moment electromagnetic emitter - Google Patents
Arc-shaped multipole-moment electromagnetic emitter Download PDFInfo
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- CN104197778A CN104197778A CN201410424230.0A CN201410424230A CN104197778A CN 104197778 A CN104197778 A CN 104197778A CN 201410424230 A CN201410424230 A CN 201410424230A CN 104197778 A CN104197778 A CN 104197778A
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Abstract
The invention discloses an arc-shaped multipole-moment electromagnetic emitter which is mainly composed of driving coils, armatures, energy storage power sources and a control system. The driving coils are composed of a plurality of arc-shaped coils, and the driving coils at all levels are arranged in the motion direction of the armatures and rotate by a certain angle in sequence around the axis. The surfaces of the armatures are composed of a plurality of arc-shaped good conductors which are insulated, and the interiors of the armatures are supported by insulated rigid supports. The radial clearance between the armatures and the driving coils of the emitter is small, the system energy conversion efficiency is high, and the stress concentration effect of the armatures is not obvious. The emitter is mainly suitable for the large-mass object emitting field needing rotating stability.
Description
Technical field
The invention belongs to Electromagnetic Launching field, it relates to a kind of rotating electromagnetic emitter with higher-energy conversion efficiency.
Background technology
Chinese invention patent CN102192680A discloses a kind of " rotary multipole moment-field electromagnetic thruster ", and its drive coil is the multipole moments coil that produces radial magnetic field, several drive coil composition polygon driver modules.Every one-level driver module rotates to an angle along axis with respect to previous stage driver module, forms the capable ripple of rotary magnetic in space.Therefore armature is subject to axis acceleration and rotate in a circumferential direction moment, stably accelerated motion in motion process simultaneously.It has the advantages such as force structure is reasonable, armature movement stable, transmitting adaptability is good compared with traditional induction type electromagnetic launch system.
But there is certain inherent shortcoming in this configuration.Because armature and driver module cross section are polygon, for ensureing that armature is rotated smoothly, each drive coil must keep larger radial distance with armature.This can cause drive coil and armature magnetic coupling coefficient less, armature muzzle velocity and energy conversion efficiency are lower.In addition, there is stress concentration phenomenon in polygon armature, in the time being subject to larger electromagnetic stress, is easily out of shape.
Summary of the invention
Lower and have a concentrated shortcoming of stress for overcoming traditional rotary multi-pole moment electromagnetic launch system energy conversion efficiency, the present invention proposes a kind of new multipolar square electromagnetic launcher, this transmitter improves drive coil and armature on the basis of original multipole moments configuration, the feature such as make it not only to have that traditional multipole moments configuration force structure is reasonable, armature movement is stable, also have advantages of system capacity conversion efficiency compared with high, armature rotary outlet speed is large, stress is concentrated less.
The technical solution adopted for the present invention to solve the technical problems is as follows:
A kind of circular arc multipole moments electromagnetic launcher, formed by drive coil, armature, accumulation power supply and control system, drive coil is coaxially nested with at armature skin, it is characterized in that: drive coil 1 is multistage setting, and its every one-level is made up of several circular arc coils; Electromagnetic launcher is annular perpendicular to the cross section of armature movement direction; Drive coils at different levels are arranged along armature movement direction, are rotated to an angle successively around axis; Armature 2 surfaces are made up of the circular arc good conductor of several piece mutually insulated, and armature inside is provided support by the rigid support 3 that insulate.
Circular arc multipole moments electromagnetic launcher is by drive coil, armature, accumulation power supply and composition of the control system.Described drive coil is made up of several circular arc coils, and its cross section is annular, and drive coils at different levels prolong armature movement direction to be arranged, need to rotate to an angle successively around axis according to transmitting; Armature surface is made up of the circular arc good conductor of several piece mutually insulated, and good conductor piece number can be different from every grade of circular arc coil quantity, and armature inside provides rigid support by insulating materials; Drive coils at different levels are connected with accumulation power supply by control system, obtain pulse current.
Because cross section in drive coil and armature outer cross section are circle, without outstanding corner angle, both radial clearances can greatly reduce, and therefore this transmitter has higher magnetic coupling coefficient and energy conversion efficiency.Armature cross section is ring-type, can be uniformly dispersed the electromagnetic stress being subject to, and stress concentration phenomenon is not remarkable.The several piece good conductor mutually insulated of armature surface, inductive loop is limited in every good conductor surface, in the time that armature rotates, inductive loop cannot be along armature surface circumferential movement, has therefore strengthened and the electromagnetic interaction of the capable ripple of rotary magnetic, has strengthened the moment that rotates in a circumferential direction that armature is subject to.
The present invention, in the situation that having kept traditional multipole moments configuration advantage, has improved system capacity conversion efficiency, has reduced armature stress concentration phenomenon; By changing armature surface good conductor piece number, can under the condition that does not change system remainder structure, provide larger rotary outlet speed or straight line muzzle velocity according to launch requirements.
Brief description of the drawings
Fig. 1 is drive coil and the armature structure schematic diagram of the embodiment of the present invention.
Fig. 2 is the overall system diagram of Fig. 1 embodiment.
Fig. 3 is drive coil and the armature schematic cross section of Fig. 1 embodiment.
In figure, 1 is circular arc multipole moments drive coils, 2 armatures, 3 armature rigid supports, 4. accumulation power supply, 5. control system.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment illustrated in fig. 1 is three grades of sextupole square circular arc electromagnetic launchers, and this embodiment drive coil 1 has three grades, and every grade of drive coil is made up of six circular arc coils, is arranged into complete sextupole square annulus configuration; Three grades of drive coils extend successively along armature movement direction, and every grade of coil rotates 20 degree compared with upper level coil around axis.Coil can be formed by copper cash or superconducting line coiling, and this example adopts copper coil.The present invention can adjust emitter structures according to launch requirements, determines transmitter progression by armature straight line muzzle velocity, determines drive coil number of pole-pairs by armature quality and required horizontal restoring force, determines every grade of coil anglec of rotation by armature rotary outlet speed.
Armature 2 surfaces embodiment illustrated in fig. 1 are made up of the circular arc good conductor of four mutually insulateds, and its inside provides rigid support by insulating materials.Good conductor piece can be made by the high conductivity such as aluminium, copper low magnetic permeability metal, and this example adopts fine aluminium to make.The insulation rigid support 3 of armature inside bears whole electromagnetism compression stresses in emission process, therefore can be made by epoxy resin, fiberglass etc. high strength rigid material, and ensure certain thickness, and this example adopts epoxy resin to make.The piece number of armature surface good conductor can be determined that by launch requirements if desired larger rotary outlet speed suitably increases piece number and reduces every area; If desired larger straight line muzzle velocity, suitably reduces piece number and increases every area.
In conjunction with Fig. 1 and Fig. 2, the circular arc multipole moments electromagnetic launcher course of work can be described.Before transmitting, first to three grades of capacitor chargings, make it to reach operating voltage; Armature enters the transmitter first order with certain speed, and in the time that measuring system detects that armature is positioned at first order trigger position, control system is connected accumulation power supply and provided pulse current for drive coil; The magnetic field that drive coil changes, and produce inductive loop on armature surface good conductor, is interacted and is promoted armature and advance until second level trigger position by electromagnetic force.Drive coils at different levels conducting successively produces the capable ripple of magnetic that rotation moves ahead on armature travel path, finally promotes armature and does Spin-up motion.
Can further to define the present invention and compare the advantage of traditional multipole moments configuration by this embodiment schematic cross section Fig. 3.Because drive coil and armature are circle, without outstanding corner angle, ensureing, under the condition of the smallest radial safety clearance identical with traditional multipole moments configuration, can to make radial distance between the two greatly reduce.This will reduce leakage magnetic flux, increase electromagnetic coupled efficiency, thereby increase system capacity conversion efficiency.Be different from the polygon armature of traditional multipole moments configuration, armature of the present invention is stressed to be born by inner annular rigid insulation support completely, does not have stress concentration phenomenon, and intensity is higher, and this is particularly evident in the time that armature sidewall is thinner.In addition, by the good conductor piece of polylith mutually insulated is set at armature surface, can artificially limit the circumferential movement of inductive loop, strengthen the moment that rotates in a circumferential direction that armature is subject to, armature rotary outlet speed is further increased.
Claims (4)
1. a circular arc multipole moments electromagnetic launcher, formed by drive coil, armature, accumulation power supply and control system, drive coil is coaxially nested with at armature skin, it is characterized in that: drive coil 1 is multistage setting, and its every one-level is made up of several circular arc coils; Electromagnetic launcher is annular perpendicular to the cross section of armature movement direction; Drive coils at different levels are arranged along armature movement direction, are rotated to an angle successively around axis; Armature 2 surfaces are made up of the circular arc good conductor of several piece mutually insulated, and armature inside is provided support by the rigid support 3 that insulate.
2. circular arc multipole moments electromagnetic launcher according to claim 1, is characterized in that, is describedly multistagely set to three grades, and every grade of drive coil is made up of six circular arc coils, has the swing angle of 20 degree between drive coils at different levels.
3. circular arc multipole moments electromagnetic launcher according to claim 1, is characterized in that, described armature 2 surfaces are made up of the circular arc good conductor of four mutually insulateds
4. circular arc multipole moments electromagnetic launcher according to claim 1, is characterized in that, described drive coil progression is determined by armature straight line muzzle velocity; Drive coil number of pole-pairs is determined by armature quality and required horizontal restoring force; Every grade of coil anglec of rotation is determined by armature rotary outlet speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410424230.0A CN104197778A (en) | 2014-08-26 | 2014-08-26 | Arc-shaped multipole-moment electromagnetic emitter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410424230.0A CN104197778A (en) | 2014-08-26 | 2014-08-26 | Arc-shaped multipole-moment electromagnetic emitter |
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| CN104197778A true CN104197778A (en) | 2014-12-10 |
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| CN201410424230.0A Pending CN104197778A (en) | 2014-08-26 | 2014-08-26 | Arc-shaped multipole-moment electromagnetic emitter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107046331A (en) * | 2016-02-05 | 2017-08-15 | 名硕电脑(苏州)有限公司 | Electronic installation with wireless charging function |
| CN111780615A (en) * | 2019-04-04 | 2020-10-16 | 南京理工大学 | Electromagnetic coil emitting device capable of automatically adjusting initial speed |
| CN117073458A (en) * | 2023-07-12 | 2023-11-17 | 山东科技大学 | Submerged-type distributing device and control method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202109822U (en) * | 2011-03-30 | 2012-01-11 | 西南交通大学 | Rotary multipole moment-field electromagnetic thruster |
| CN204043483U (en) * | 2014-08-26 | 2014-12-24 | 西南交通大学 | Circular arc multipole moments electromagnetic launcher |
-
2014
- 2014-08-26 CN CN201410424230.0A patent/CN104197778A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202109822U (en) * | 2011-03-30 | 2012-01-11 | 西南交通大学 | Rotary multipole moment-field electromagnetic thruster |
| CN204043483U (en) * | 2014-08-26 | 2014-12-24 | 西南交通大学 | Circular arc multipole moments electromagnetic launcher |
Non-Patent Citations (2)
| Title |
|---|
| 朱英伟等: ""磁阻型线圈发射减速力研究"", 《磁阻型线圈发射减速力研究》 * |
| 王豫等: ""多极矩电磁发射技术研究进展"", 《高电压技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107046331A (en) * | 2016-02-05 | 2017-08-15 | 名硕电脑(苏州)有限公司 | Electronic installation with wireless charging function |
| CN111780615A (en) * | 2019-04-04 | 2020-10-16 | 南京理工大学 | Electromagnetic coil emitting device capable of automatically adjusting initial speed |
| CN117073458A (en) * | 2023-07-12 | 2023-11-17 | 山东科技大学 | Submerged-type distributing device and control method |
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Application publication date: 20141210 |