CN109505748A - A kind of pulsed plasma thruster energy-storage module - Google Patents
A kind of pulsed plasma thruster energy-storage module Download PDFInfo
- Publication number
- CN109505748A CN109505748A CN201811486861.XA CN201811486861A CN109505748A CN 109505748 A CN109505748 A CN 109505748A CN 201811486861 A CN201811486861 A CN 201811486861A CN 109505748 A CN109505748 A CN 109505748A
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- storage module
- ceramic capacitor
- packaging box
- energy
- energy storage
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- 238000004146 energy storage Methods 0.000 title claims abstract description 36
- 238000004806 packaging method and process Methods 0.000 claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 239000003985 ceramic capacitor Substances 0.000 claims abstract description 32
- 239000003292 glue Substances 0.000 claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims abstract description 10
- 238000005538 encapsulation Methods 0.000 claims abstract description 7
- 238000004382 potting Methods 0.000 claims abstract 4
- 238000003466 welding Methods 0.000 claims description 8
- 239000004642 Polyimide Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 2
- 238000010943 off-gassing Methods 0.000 claims 1
- 230000002500 effect on skin Effects 0.000 abstract description 3
- 239000000919 ceramic Substances 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract 1
- 238000003475 lamination Methods 0.000 description 14
- 238000005266 casting Methods 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 3
- 108091092878 Microsatellite Proteins 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H—PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H1/00—Using plasma to produce a reactive propulsive thrust
- F03H1/0087—Electro-dynamic thrusters, e.g. pulsed plasma thrusters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
本发明公开了一种脉冲等离子体推力器储能模块，封装盒、陶瓷电容器片叠层组以及两块能量传输面板；陶瓷电容器片叠层组设置在封装盒中，由多个无极性的陶瓷电容器片排列而成，且相互之间留有间隙；陶瓷电容器片的上电极和下电极各自位于同一侧；两块能量传输面板在封装盒内的部分，其中一块焊接各陶瓷电容器片的上电极，另一块焊接各陶瓷电容器片的下电极；能量传输面板在封装盒外的部分形成用于电容器充电的充电连接导带以及用于短脉冲放电传输的放电输运带；封装盒内进行灌封胶灌封。使用本发明，能够有效提高储能密度，确保在有限狭小空间内的集成；而且能够克服短脉冲大电流传输时的趋肤效应，确保了能量的高效传输。
The invention discloses a pulse plasma thruster energy storage module, an encapsulation box, a ceramic capacitor plate laminated group and two energy transmission panels; the ceramic capacitor plate laminated group is arranged in the encapsulation box, and consists of a plurality of non-polar ceramic The capacitor plates are arranged with a gap between them; the upper electrode and the lower electrode of the ceramic capacitor plate are located on the same side; the part of the two energy transmission panels in the packaging box, one of which is welded to the upper electrode of each ceramic capacitor plate , the other is welded to the lower electrode of each ceramic capacitor plate; the part of the energy transmission panel outside the packaging box forms a charging connection conduction belt for capacitor charging and a discharge conveyor belt for short-pulse discharge transmission; potting is carried out in the packaging box. glue potting. By using the invention, the energy storage density can be effectively improved, and the integration in a limited and narrow space can be ensured; and the skin effect in the transmission of short pulse and large current can be overcome, and the efficient transmission of energy can be ensured.
Description
Technical field
The invention belongs to spacecraft propulsion technical field more particularly to a kind of energy for pulsed plasma thruster
Storage module.
Background technique
PPT (pulsed plasma thruster) is since small in size, quality is small, structure is simple, precision pulse is adjusted and small
The micromass culture system that the advantages that power high specific impulse maintains be especially suitable for the gesture stability and track of microsatellite, is defended with enhancing
Star mission and extension working life.And PPT thruster energy-storage module, as its core component, still thruster quality is not held mainly
It carries, and its performance directly determines the overall performance of PPT thruster, generally requires high energy storage density, preferable mechanics
Adaptability, the low contour performance requirement of parasitic inductance amount.
PPT thruster space flight at present is often the capacitors such as film and oil-paper Jie, this kind of capacitor with energy-storage module
Volume is big and quality weight, is unable to satisfy the rigors of lightweight, small size that current microsatellite proposes propulsion system, and
And there is biggish energy loss for the electric discharge of PPT short pulse as energy transmission line using single or split conductor.
Summary of the invention
In view of this, energy storage can be effectively improved the present invention provides a kind of pulsed plasma thruster energy-storage module
Density, it is ensured that integrated in limited small space；And skin effect when short pulse heavy current can be overcome to transmit, it is ensured that
The high efficiency of transmission of energy.
In order to solve the above-mentioned technical problem, the present invention is implemented as follows:
A kind of pulsed plasma thruster energy-storage module, comprising: packaging cartridge, ceramic capacitor piece lamination group and two pieces
Energy transmission panel；
Ceramic capacitor piece lamination group is arranged in packaging cartridge, is arranged by multiple non-polar ceramic capacitor pieces,
And there are gaps between each other；The top electrode of ceramic capacitor piece and lower electrode are each located on the same side；
Part of the two block energies transmission panel in packaging cartridge, the top electrode of one of each ceramic capacitor piece of welding,
The lower electrode of another each ceramic capacitor piece of block welding；Part of the energy transmission panel outside packaging cartridge is formed to be filled for capacitor
The charging connection conduction band of electricity and the electric discharge transporting belt transmitted for short pulse electric discharge；
Glue encapsulating is potted in packaging cartridge.
Preferably, packaging cartridge is the cuboid box of polyimides material.
Preferably, packaging cartridge bottom surface is equipped with mounting hole, realizes that being spirally connected for packaging cartridge and thruster is connected.
Preferably, the multiple non-polar ceramic capacitor piece lines up matrix, and top electrode is same upward, the lower same court of electrode
Under.
Panel is transmitted preferably for a block energy, the part outside packaging cartridge forms and is located in the middle charging connection
Conduction band, and the electric discharge transporting belt positioned at two sides.
Preferably, the electric discharge transporting belt is bent to the step type of single order.
Preferably, the stepped of transporting belt of discharging is made of in, b with the side c a, and a is parallel while with c, and b is while with a, the side b
Angle between the side c is between 120 °~150 °.
Preferably, the end threading hole of the charging connection conduction band and electric discharge transporting belt, for carrying out hook weldering or binding weldering
It connects.
Preferably, kidney-shaped stress relief hole is opened up on energy transmission panel；After energy transmission panel-mounted to packaging cartridge,
The stress relief hole is located at packaging cartridge edge, partially inside packaging cartridge, partially outside packaging cartridge.
Preferably, the casting glue uses the characteristic glue of the high low outlet that insulate；The characteristic glue is 10-2Pa vacuum below
Under degree, breakdown voltage is greater than 3000V/mm；The low outlet index of the characteristic glue vacuum requires total mass loss less than 1%, can coagulate
Poly- volatile matter is less than 0.1%.
The utility model has the advantages that
(1) present invention uses ceramic capacitor piece lamination, effectively increases energy storage density, breaks through narrow space and lightweight
Measure harsh limitation, it is ensured that in the integrated of limited small space, so that energy-storage module has small in size, light weight advantage.
Secondly, condenser plate lamination group is connected using the high conductivity energy transmission panel of large area, and use conduction band
The transmission for completing short pulse electric discharge overcomes skin effect when short pulse heavy current transmission, it is ensured that the high efficiency of transmission of energy,
Improve the overall performance of PPT thruster；
In addition, using vacuum encapsulation in packaging cartridge, low pressure discharge is avoided, has both realized whole be connected, it is ensured that module exists
Mechanics is undeformed when vibrating, and accomplishes the flexible connection between capacitor laminate group and packaging cartridge and discharge plate, reaches decrease vibration
The purpose of influence, protective condenser lamination group is moved, establishes technical foundation for the PPT thruster development of miniaturisation high-performance.
(2) it is connected by packaging cartridge, the needles such as vacuum encapsulation, the setting of stress relief hole and transporting belt bending structure in box
To property mechanics adaptability design, while guaranteeing superperformance, there is very high mechanics adaptability.
(3) electric discharge transporting belt is located at setting kidney-shaped stress relief hole at packaging cartridge port, reduces the rigidity of transporting belt, mentions
It is flexible to rise it.
(4) energy-storage module overall structure is simple, convenient for integrated assembling, meets the miniaturisation high-performance and star of PPT thruster
Integrated design theory is carried, there is general applicability, is conducive to engineering product.
Detailed description of the invention
Fig. 1 is that a kind of pulsed plasma thruster energy-storage module of the present invention designs three dimensional structure diagram.
Fig. 2 is the top view of ceramic capacitor piece arrangement in ceramic capacitor piece lamination group.
Fig. 3 is energy transmission panel three dimensional structure diagram of the invention.
Wherein, 1- packaging cartridge, 2- ceramic capacitor piece lamination group, 3- energy transmission panel, I- mounting hole, II- electric discharge are defeated
Fortune band, III- charging connection conduction band, the threading hole of A- electric discharge transporting belt, B- kidney-shaped stress relief hole, C- charging connection conduction band
Threading hole.
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, the present invention provides a kind of pulsed plasma thruster energy-storage modules, comprising: packaging cartridge 1, pottery
Porcelain condenser piece lamination group 2 and two block energies transmit panel 3.
Ceramic capacitor piece lamination group 2 arranged by multiple non-polar ceramic capacitor pieces according to electrode mode in the same direction and
At, and there are gaps between each other.Ceramic capacitor piece can be using the commercial standard (CS) ceramics that parasitic inductance is small, energy storage density is high
Condenser plate.In order to improve ceramic capacitor piece energy storage density, these ceramic capacitor pieces can line up square as shown in Figure 2
Battle array, top electrode is with upward, and lower electrode is the same as downward.
Two block energies transmission panel 3 is located above and below ceramic capacitor piece lamination group 2, in upper energy transmission
Panel welds the top electrode of all ceramic capacitor pieces, and the energy transmission panel under welds the lower electricity of all ceramic capacitor pieces
Pole.This structure can guarantee to be formed upper and lower electrode difference good connection between all condenser plates of lamination group, be effectively reduced
Parasitic inductance realizes energy efficient transmission.
Packaging cartridge 1 is the cuboid box of the polyimides material of one side opening, and there are six mounting hole I for bottom surface, is realized
Being spirally connected for box and thruster is connected.Polyimides material can be realized the structural strength for being well electrically isolated and ensuring to have required.
The lamination group that welding finishes is placed in the packaging cartridge 1, and vacuum encapsulation is carried out using casting glue, realizes welding
After lamination group and packaging cartridge flexible connection, protect lamination group, by six mounting hole I of packaging cartridge bottom with
PPT thruster carries out screw rod and is solidly connected, to realize " outer just interior soft " of energy-storage module, can greatly weaken mechanics vibration pair
The influence of capacitor laminate group guarantees the highly reliable work of its long-life.Wherein, casting glue is special preferably with the low outlet of height insulation
Property glue.The high insulation of the low outlet characteristic glue of height insulation refers to 10-2Under Pa vacuum degree below, breakdown voltage is greater than 3000V/mm,
Low outlet refers to that the low outlet index requirement total mass loss of characteristic glue vacuum less than 1%, can agglomerate volatile matter less than 0.1%.
After being packed into packaging cartridge, 3 part of energy transmission panel is located in box, and partial denudation is outside box.As previously mentioned, energy
Transmit part of the panel 3 in packaging cartridge, be respectively welded ceramic capacitor piece top electrode and lower electrode；And it is exposed outside box
Part forms the charging connection conduction band III for capacitor charging and the electric discharge for short pulse electric discharge transmission as shown in Figure 1
Transporting belt II.
The structure of energy transmission panel of the present invention is as shown in Figure 3.It is formed in one end of panel and is located in the middle charging connection
Conduction band III, and the electric discharge transporting belt II positioned at two sides.Wherein, electric discharge transporting belt II is bent to the step type of single order, makes in this way
Between energy-storage module and discharge plate there are certain deformation, play buffer function, realize flexible connection, promote mechanics and adapt to
Property.Specifically, the single order step type of transporting belt II of discharging is made of in, b with the side c a, and a is parallel while with c, and b is while with a
Angle between the side c in this way while providing deformation, can also avoid overflexing from causing to damage between 120 °~150 °
It is bad.
Threading hole (C in Fig. 3) is opened on charging connection conduction band III, for carrying out hook weldering or binding welding.Similarly, it discharges
The end of transporting belt II also opens up threading hole (A in Fig. 3), for carrying out hook weldering or binding welding.
In addition, opening up kidney-shaped stress relief hole (B in Fig. 2) on energy transmission panel 3, which is located at envelope
1 edge of mounted box, partially inside packaging cartridge 1, partially outside packaging cartridge 1.Stress relief hole can reduce the rigidity of transporting belt,
Promote its flexibility.
In use, charging connection conduction band III above and below two charging single-core lines difference that power module is thrown away, i.e., by single
The metal part of line completes the binding with conduction band by threading hole (C in Fig. 3), then welds；Four electric discharges transport band structure
II completes to bundle with four discharge electrodes by binding threading hole (A in Fig. 2) respectively, then welds.
When the energy-storage module is applied to 25W grades of PPT thrusters, energy-storage module maximum outer profile is 120mm × 40mm
× 30mm, specific size are packaging cartridge 1:90mm × 42mm × 22mm；Stacked capacitor 2:85mm × 40mm × 18mm；Energy passes
The thickness of chances of losing games plate 3:0.3mm.
Use 1 energy-storage module as the energy-storage module of 25W grades of PPT thruster charge and discharge, energy-storage module respectively corresponds two
Energy-storage module be spirally connected connecting by thruster spray head by the screw hole above packaging cartridge with thruster；Energy-storage module electric discharge is defeated
Then fortune band bundle with positive and negative two electrodes of thruster spray head respectively to be welded, guarantee good contact, reduce contact resistance.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811486861.XA CN109505748A (en) | 2018-12-06 | 2018-12-06 | A kind of pulsed plasma thruster energy-storage module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811486861.XA CN109505748A (en) | 2018-12-06 | 2018-12-06 | A kind of pulsed plasma thruster energy-storage module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109505748A true CN109505748A (en) | 2019-03-22 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811486861.XA Pending CN109505748A (en) | 2018-12-06 | 2018-12-06 | A kind of pulsed plasma thruster energy-storage module |
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