CN110366342A - A kind of bloom spectrum loading electric cabinet system suitable for space environment - Google Patents
A kind of bloom spectrum loading electric cabinet system suitable for space environment Download PDFInfo
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- CN110366342A CN110366342A CN201910631131.2A CN201910631131A CN110366342A CN 110366342 A CN110366342 A CN 110366342A CN 201910631131 A CN201910631131 A CN 201910631131A CN 110366342 A CN110366342 A CN 110366342A
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- electric cabinet
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- 238000001228 spectrum Methods 0.000 title claims abstract description 19
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims description 8
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 7
- 229910000737 Duralumin Inorganic materials 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000003384 imaging method Methods 0.000 claims description 4
- 238000007747 plating Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 7
- 238000013461 design Methods 0.000 description 32
- 238000009434 installation Methods 0.000 description 10
- 238000001816 cooling Methods 0.000 description 7
- 238000005057 refrigeration Methods 0.000 description 7
- 238000012546 transfer Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- PRPINYUDVPFIRX-UHFFFAOYSA-N 1-naphthaleneacetic acid Chemical compound C1=CC=C2C(CC(=O)O)=CC=CC2=C1 PRPINYUDVPFIRX-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
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- 230000001186 cumulative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0247—Electrical details of casings, e.g. terminals, passages for cables or wiring
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
- H05K7/1402—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards
Abstract
The present invention provides a kind of bloom spectrum loading electric cabinet system suitable for space environment, solves the problem of complex process when poor big existing space electric cabinet volume, heavier mass, electromagnetic shielding performance and the interior replacement circuit board element of electric cabinet cavity or plate frame structure.The system includes cabinet, control bus master and multiple drawer type circuit units；Cabinet one end opens up multiple insert ports from top to bottom, is equipped with control bus master in other end cabinet, and the position opposite with each insert port is equipped with connector on control bus master；Drawer type circuit unit is arranged between insert port and connector；Drawer type circuit unit includes fixed frame, the circuit board functional module being mounted on fixed frame, the electric connection and electrical connector being mounted in circuit board functional module；Circuit board functional module is connect by electric connection with connector, and circuit board functional module is connect by electrical connector with external equipment；It is connected between fixed frame and cabinet both side plate inner wall by slide assemblies.
Description
Technical field
The invention belongs to a kind of electric cabinets, and in particular to a kind of bloom spectrum loading electric cabinet system suitable for space environment
System.
Background technique
In recent years, with the development of space technology, space optics load is increasingly taken seriously.In optics load system
In, corresponding circuit board is installed by electric cabinet to realize related photoelectric functional, according to the difference of design point, there are a variety of samples
The electric cabinet of formula and type.
The electric cabinet of Traditional Space load mostly uses square chest type structure or stacked series formula structure type, this structure type
Electric cabinet volume is big, heavier mass.What conventional electric cabinet used is all single-chamber closed structure, and intracavitary circuit board passes through in cavity wall
Upper aperture, installation external connector are connect with the external world, and external connector and cavity wall aperture are small―gap suture cooperation, external connector sheet
There is also magnetic flux leakages for body, so that closing chamber is not closed, electromagnetic shielding performance is poor.It is general between external connector and circuit board
It is to be connected by the way of flexible cord welding, circuit board replaces component or plate frame structure needs to need when the change disassembly circuit board of part
By flexible cord tip-off, complex process.
Severe mechanical environment when undergoing transmitting due to, space electric cabinet, need to be subjected to during rocket launching compared with
The mechanical environments such as vibration, impact, the overload of big magnitude, therefore, the design of space electric cabinet will not only consider structural strength, light weight
The requirement such as change, reliability, thermo-environment adaptability, Electro Magnetic Compatibility, but also to fully consider the influence of mechanical environment, Neng Gouman
The examination of sufficient vibration environment test.
Because of the complexity of space environment, various high energy particles and space ray are all easily to the electric cabinet cavity of optics load
Electronic component in interior circuit board, especially circuit board generates adverse effect, to cause the hair of various abnormalities
It is raw.Meanwhile being also easy to cause electromagnetic interference mutually between electric cabinet and other control panels, cause the destruction of electric control function.
Summary of the invention
In order to solve that existing space electric cabinet volume big, heavier mass, electromagnetic shielding performance be poor and electric cabinet cavity in more
When changing circuit board element or plate frame structure the technical issues of complex process, the present invention provides a kind of suitable for space environment
Bloom spectrum loading electric cabinet system.
To achieve the above object, present invention provide the technical scheme that
A kind of bloom spectrum loading electric cabinet system suitable for space environment is characterized in that including cabinet, control
Bus mother board and multiple drawer type circuit units；Described cabinet one end opens up multiple insert ports from top to bottom, in other end cabinet
Equipped with the control bus master, the position opposite with each insert port is equipped with connector on the control bus master；It is described
The quantity of drawer type circuit unit is adapted with the quantity of the insert port, and is corresponded, and the setting of drawer type circuit unit exists
Between insert port and connector；Drawer type circuit unit includes that fixed frame, circuit board functional module, electric connection and electricity patch
Part；The circuit board functional module is mounted on fixed frame, and the electric connection is installed in circuit board functional module and electricity patches
Part；The circuit board functional module connect by electric connection with the connector, circuit board functional module pass through electrical connector and
External equipment connection；It is connected between fixed frame and cabinet both side plate inner wall by slide assemblies.
Further, each circuit board functional module is equipped with L shape heat sink, and heat sink materials are T2 copper alloy.
Further, the material of the fixed frame be 6061 duralumin, hard alumin ium alloys comprising left plate, right side plate, front side board, after
Side plate；Threaded hole is offered on the left plate and right side plate, after screw sequentially passes through circuit board functional module, threaded hole,
Circuit board functional module is fixed on fixed frame；The front side board is equipped with the mounting hole for installing electrical connector.
Further, the cabinet both side plate is plate fin heat-exchanging structure.
Further, reinforcing rib is equipped between the left plate and right side plate, between front side board and back side panel.
Further, the circuit board functional module is analog acquisition board group part or slave computer control panel component or calibration electricity
Source control panel component or movement drive control plate component or imaging circuit add power-off control panel component.
Further, the component that is slidably connected includes the linear guide that left plate and right side plate outer wall is respectively set, setting
The guide groove cooperated on cabinet both side plate inner wall with linear guide.
Further, the material of the linear guide is 6061 duralumin, hard alumin ium alloys.
Further, the cabinet is equipped with ground stud, and material is T2 copper alloy；The ground stud carries out at surface gold-plating
Reason.
Compared with prior art, the invention has the advantages that
1, multiple drawer type circuit units are carried out stacking drawer type assembled in cabinet by electric cabinet system of the present invention, are passed through
Drawer type circuit unit is movable into and out cabinet, realizes that circuit board functional module patch connecting with control bus master,
And then realize the exchange and communication of signal, and it is an independent structural unit that each circuit board functional module is individually designed, one
The communication of multiple circuit board functional modules can be achieved in cabinet；Meet the mounting arrangement, small-sized of hyperspectral imager electric-control system
Change, light-weight design；Multiple circuit board functional modules are installed in a cabinet, and electromagnetic shielding performance is good；
The application electric cabinet system is modularized design, and control bus master is arranged separately in cabinet, existing by failure
As and to control bus master signal test, be relatively easy to position failure, determine be specially certain layer circuit board function
Energy module breaks down, this layer of faulty circuit plate functional module removal is carried out maintenance replacement operation, which will not relate to
And other layer circuit board functional modules, maintenance and Replacement procedure are simple, easy to operate.
2, the present invention can be equipped with L shape heat sink in circuit board functional module, and heat-conductive characteristic with higher can be fast
Speed conducts component heat in circuit board functional module to fixed frame.
3, the material of fixed frame of the present invention can be 6061 duralumin, hard alumin ium alloys, increase rigidity；Using tower structure, not only may be used
To play the role of fixing circuit board functional module, prevent vibration from damaging, it is also used as the heat dissipation road of circuit board functional module
Diameter.
4, the both side plate of cabinet of the present invention uses plate fin heat-exchanging structure, connect to form circulation loop with external refrigeration source,
Improve radiating efficiency.
5, due in circuit board functional module components' placement it is intensive, in order to improve drawer type circuit unit structural strength,
Reinforcing rib is equipped on fixed frame.
6, the present invention can pass through guide groove in the linear guide and cabinet both side plate inner wall of fixed frame both side plate outer surface
Cooperation, realize being movable into and out for every layer of drawer type circuit unit opposite case, guarantee leakproofness, the electromagnetic screen of link position
It covers, while also increasing structural mechanics stability.
7, in order to improve the safety and reliability of electric cabinet system, ground stud is equipped on cabinet.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the bloom spectrum loading electric cabinet system that the present invention is suitable for space environment；
Fig. 2 is the sectional view along A-A of Fig. 1；
Fig. 3 is the structural schematic diagram of present invention fixed frame suitable for the bloom spectrum loading electric cabinet system of space environment
One；
Fig. 4 is the structural schematic diagram of present invention fixed frame suitable for the bloom spectrum loading electric cabinet system of space environment
Two.
Wherein, appended drawing reference is as follows:
1- cabinet, 11- insert port, the fast plug of 12-, 13- refrigeration flow tube, 14- back plate, 15- upper plate, 16- foreboard, 17-
Bottom plate, 2- control bus master, 21- connector, 3- drawer type circuit unit, 30- fixed frame, 31- left plate, the right side 32-
Plate, 34- front side board, 35- back side panel；311- threaded hole, 312- straight-line groove, 313- linear guide, the laterally attached fixation hole of 314-,
321- mounting hole, 33- reinforcing rib, 4- circuit board functional module, 41- electric connection, 42- electrical connector, 5-L shape heat sink, 6- mould
Analog quantity collection plate component, 7- slave computer control panel component, 8- calibrate power control board component, and 9- moves drive control plate component,
10- imaging circuit adds power-off control panel component, 22- ground stud.
Specific embodiment
The contents of the present invention are described in further detail below in conjunction with the drawings and specific embodiments.
Space environment radiation will cause adverse effect to electric-control system, and preventing the effective ways damaged is space point
From.Therefore, how the electronics control system of space optics load reasonably to be supported and is protected in structure, become instrument
The key that can device work normally under space environment.
Complex process when replacing circuit board element or plate frame structure in existing case cavity, a certain circuit board or some member
Device goes wrong, and when replacement, needs to dismantle internal structure, Operation and Maintenance complex process.Based on traditional electric cabinet
The shortcomings that, present applicant proposes modular splicing push-and-pull frame-type bilayer isolation structure electric cabinet design, which is guaranteeing
While electric cabinet mechanical stability, the electromagnetic shielding capability of electric cabinet is significantly enhanced, enhances the reliability of electric cabinet.
The dismounting process of electric cabinet is simplified simultaneously.
As depicted in figs. 1 and 2, a kind of bloom spectrum loading electric cabinet system suitable for space environment, including cabinet 1, control
Bus mother board 2 processed and multiple drawer type circuit units 3；Described 1 one end of cabinet opens up multiple insert ports 11, the other end from top to bottom
It is equipped with the control bus master 2 in cabinet 1, the position opposite with each insert port 11 is equipped on the control bus master 2
Connector 21；The quantity of the drawer type circuit unit 3 is adapted with the quantity of the insert port 11, and is corresponded, drawer
Formula circuit unit 3 is arranged between insert port 11 and connector 21.
Each drawer type circuit unit 3 includes fixed frame 30, circuit board functional module 4, electric connection 41 and electrical connector
42；The circuit board functional module 4 is mounted on fixed frame 30, and 41 He of electric connection is installed in circuit board functional module 4
Electrical connector 42；The circuit board functional module 4 is connect by electric connection 41 with the connector 21, circuit board functional module 4
It is connect by electrical connector 42 with external equipment；It is connected between 1 both side plate inner wall of fixed frame 30 and cabinet by slide assemblies.
The application is modularized design, and control bus master 2 is arranged separately in 14 position of back plate of cabinet 1, by control
The test of 2 signal of bus mother board processed, is relatively easy to position failure, determines to be specially which layer circuit board functional module 4 goes out
This layer of drawer type circuit unit extraction simply can be carried out maintenance replacement operation by existing failure, which will not relate to
Other normal circuit plate functional modules 4, service procedure is simple, easy to operate.Electric cabinet system of the invention passes through drawer type electricity
Road unit is movable into and out cabinet 1, realizes that every layer circuit board functional module 4 patch connecting with control bus master 2, into
The exchange and communication of row signal, individually designed each circuit board functional module 4 is an independent structural unit, a cabinet 1
The communication of multiple circuit board functional modules 4 inside can be achieved, the communication between every layer function module is realized in control bus master 2；
Meet mounting arrangement, miniaturization, the light-weight design of hyperspectral imager electric-control system；Multiple circuit board functional modules 4 are pacified
In a cabinet 1, electromagnetic shielding performance is good.
The electric cabinet system of the present embodiment includes 5 drawer type circuit units 3, correspondingly, 1 one end of cabinet open up from upper and
Under 5 insert ports, 11,5 drawer type circuit units 3 disposed in parallel be mounted in 5 insert ports 11,5 drawer type circuit lists
In member 3 the circuit board functional module 4 installed be followed successively by from top to bottom analog acquisition board group part 6, slave computer control panel component 7,
Calibration power control board component 8, movement drive control plate component 9 and imaging circuit add power-off control panel component 10, fixed frame
30 realize the opposite insertion with 1 both side plate inner wall of cabinet by the component that is slidably connected or insert, and then 5 circuit board function moulds
Block 4 passes through and control bus master 2 carries out plug connection, carries out the exchange and communication of signal, 5 circuit board functional modules 4 exist
Modularized design is carried out in structure, individually designed every layer function circuit board module is an independent structural unit, every piece of circuit
Plate functional module 4 is designed with individual fixed frame and installation is fixed, and 5 layer function circuit board modules set for laminated construction
Meter.Stacking drawer type assembled is carried out according to the connection relationship of every layer circuit board functional module 4, every layer carries out with four cycle side plate of cabinet
Fastening installation, is finally reached every technical requirements of interface data list, meets space environment use condition.
In structure design, circuit board functional module 4 includes the circuit board being arranged on fixed frame 30, is arranged in circuit
Functional module on plate, functional module include component；By the rational deployment component in circuit board functional module 4, by quality
Biggish component, the component for needing to do structure heat dissipation are laid out as far as possible close to the lesser edge of circuit board vibration deformation
Area.
The material of fixed frame 30 is 6061 duralumin, hard alumin ium alloys, including left plate 31, right side plate 32, front side board 34, back side panel
35；The left plate 31, front side board 34, offers threaded hole 311 on back side panel 35 at right side plate 32, and screw sequentially passes through electricity
After road plate, threaded hole 311, circuit board is fixed on fixed frame 30；The front side board 34 is equipped with the installation of connector 21
Hole 321, to be attached fixation to connector 21.
It is preferred that opening up straight-line groove in left plate 31,32 upper surface of right side plate, circuit board ends are located at two straight-line grooves 312
On, two straight-line grooves 312 form the mounting surface of circuit board, while left plate and right side plate have position-limiting action to circuit board；It is logical
It crosses fixed frame 30, circuit board that 15 M3 screws make with duralumin, hard alumin ium alloy material to link into an integrated entity, to increase rigidity.Consider electricity
Road plate suqare is larger, and components' placement is intensive.Design has reinforcing rib 33 on stationary frame structure, is in crossing distribution, with into one
Step guarantees the rigidity of structure.It is logical in fixed frame front end face in two side plate straight-line grooves 312 of each circuit board insertion fixed frame
It crosses 4 M3 screws and is attached circuit board and rectangle frame frame body by 6 M3 screws in side plate position.
5 layer circuit board functional module 4 of electric cabinet internal system can design 14 external electrical connectors 42, Mei Ge electricity altogether
Connector 42 is installation directly to be welded by contact pin on circuit boards, and accurately control by size of components chain.Electric cabinet system
1 size of cabinet are as follows: 290mm × 200mm × 150mm.
By rationally designing fixed frame, four cycle side plate of fixed frame and the installation panel of electrical connector, guarantee every layer
The support stiffness and cooperation precision, install convenient of drawer type circuit unit.Since electric cabinet system is circuit supporting and protection
Structural system, need to avoid the interference of circuit system component and fixed frame, and there are peaces according to the design of circuit system
Full deflection yoke.It is independent design between layers in structure design, but every layer of fixed frame 30 and 1 surrounding of cabinet
Side plate is fixed for drawer type, and every layer of 30 structure of fixed frame is thin walled framed structure, need to ensure that fixed frame and 1 side wall of cabinet are matched
The precision and length of fit of conjunction guarantee the convenience, smooth of every layer of 3 pull of drawer type circuit unit and propulsion.Avoid five layers of drawer
The influence of cumulative errors after the installation of formula circuit unit 3, each layer drawer type circuit unit 3 and the side plate of surrounding use Combined machining
Design method, every layer of drawer type circuit unit 3 assembled after processing is completed, after completing combination with processing, eliminate accumulative
Influence of the error to installation.Since product is space environment use, the analysis of environmental suitability need to be carried out to structural system, and adopt
Reasonable effective fixed form is taken, guarantees that control cabinet has good mechanical environment adaptability.
Hot property design
The thermal design of electric cabinet system mainly includes natural cooling design, forced air Cooling Design, liquid Cooling Design, steams
Feel cold but, cold plate design, thermoelectric cooler design and adopting heat pipes for heat transfer design etc..Principle is control all electronics member devices of interiors of products
The temperature of part makes it be lower than the maximum temperature of stable operation requirement under locating operating condition, to guarantee that product operates normally
Safety, long-term running reliability.
According to electric cabinet system design result, circuit board high-power component heat power consumption is 85W.In order to guarantee that electric cabinet is in-orbit
It works normally, circuit board high power device is placed on as far as possible on the frame body position of fixed frame, to shorten thermally conductive pathways, is passed through
Heat-conducting plate is quickly led on cabinet 1, and then is radiated by satellite storehouse plate.Fixed frame 30 can not only play fixing circuit board, prevent
The effect for only shaking damage is also used as the heat dissipation path of circuit board.Fixed frame 30 and circuit board are fixed by screw,
Design has L shape heat sink 5 between fixed frame 30 and circuit board high-power component, and material is T2 copper alloy, heat with higher
Conductive performance can quickly conduct component heat to fixed frame frame body.One side heat sink passes through heat-conducting silicone grease and member
Device contacts, and fixed with circuit plate bolt, another aspect heat sink carries out good installation by the structural member of side plate and fixes,
The heat that component generates is conducted to 1 side plate of cabinet, to external cooling, guarantees that the thermal environment inside cabinet 1 can satisfy device
The normal work of part needs.Installation region extension part of the heat sink as high-power die on circuit board, high-power die generate
Heat can be dispersed along device → circuit board → L shape heat sink → 30 → cabinet of fixed frame, 1 side plate thermally conductive pathways, prevent
Only temperature rises the sensitive chip influenced on circuit board.
On the other hand for quickly high-power component radiates, design has active cooling systems.1 both side plate of cabinet is
Plate fin heat-exchanging structure radiates, and the both side plate of cabinet 1 can be formed separately a circulation fluid matter refrigeration mode, can also be into
It is about to both side plate to connect, is connect with external refrigeration source and a circulation fluid matter refrigeration mode is integrally formed, cooling system work
Principle: external refrigeration source enters from the entrance of side plate outer wall, flows through in side plate after plate-fin, flows out from outlet, and plate-fin changes
The characteristics of heat engine structure is: heat transfer efficiency is high, compact-sized, adaptable；Fin is the critical elements in 1 side plate of cabinet, heat transfer
Process is mainly to be completed by the heat convection between the heat transfer and fin and fluid of fin.So heat exchanger fin
There are many kinds of the selections of form, and there are commonly rectangular fin, triangular fin, serrated fin, louvered fin, corrugated wings
Piece, pin shaped fin, porous fin etc..Triangular fin, rectangular fin are conducive to enhancing heat transfer because its equivalent diameter is small.
Porous fin, fin punching rupture thermal boundary layer constantly, not only in advance to turbulent transition, and obviously strengthen transition region,
The heat transfer of turbulent area.Corrugated fins are that it is secondary to form cooling working medium using channel geometries induction boundary layer separation is changed
Flowing exchanges heat to enhance.Louvered fin and serrated fin belong to interrupt-type fin surface, its main feature is that it is interrupted wall surface,
Because being uniformly development-oriented flowing (usually from high laminar region to low turbulent flow at each interruption without Thick Boundary Layer
Area), thus its exchange capability of heat is greatly improved.Under conditions of identical spacing of fin, the surface coefficient of heat transfer of the fin
It is 2~3 times bigger than triangular fin, rectangular fin.Since cold plate flow resistance surplus is larger, the shutter of good effect of heat exchange is selected
Formula fin and serrated fin, preferably serrated fin.
1 both side plate of cabinet does refrigeration design as support side plate, actively makes while meeting mechanical stability
It is cold, and the passive heat sink of L shape is designed with inside each circuit board functional module 4, substantially increase internal heat
Radiating efficiency has good thermal environment when ensure that electronic system work.
Cabinet plate supported on both sides is the design of plate-fin cold plate, and design has L-type heat sink on every layer circuit board, realizes master
Dynamic heat dissipation and the high efficiency and heat radiation combined that passively radiates.
EMC Design
In complicated space environment, in addition to the Electro Magnetic Compatibility that electric-control system itself has had, also require to be used to support
The electric cabinet of electric-control system has good electromagnetic sealing.For this purpose, between each component in electric cabinet inside using overlapped mode
Be electromagnetically shielded, and by rationally be arranged fastener between spacing, with enough pressure by lap-joint clamp etc. measures, protect
Under the conditions of the rugged environments such as shock and vibration, connection surface still contacts well, not to effectiveness and entire case card
The structural stability of body 1 generates big influence.
In terms of electro-magnetic screen function, each circuit board functional module 4 uses the double-deck isolation structure.In every layer of control panel
In component, circuit board is mounted on inside fixed frame, and the surrounding of fixed frame is aluminum alloy junction component, wall thickness 3mm, for
Circuit board forms the closed surrounding shield of first layer after assembling.Linear guide on the left plate and right side plate of fixed frame
313 cooperate with the guide groove of 1 both side plate inner wall of cabinet, realize the insertion of drawer type circuit unit opposite case 1 and insert, straight line
Guide rail 313 is equipped with laterally attached fixation hole 314, passes through laterally attached fixation hole by screw and is fixed on linear guide 313
The left plate of fixed frame and the outer surface of right side plate are connected with flange between the plate of drawer type circuit unit front end with side plate
It connects, by foreboard 16, back plate 14 and upper plate 15, the combination connection of lower plate 17, forms the closed surrounding screen of the second layer of circuit board
Cover body, wall thickness 3mm.All electronic components are carried in first layer, realization is isolated with the space of external equipment.The second layer by
Fixed frame 30 is closed with the bottom plate 17 of cabinet 1, the both side plate of cabinet 1, foreboard 16, back plate 14, upper plate 15.
For the overlap resistance requirement for guaranteeing constitutional detail, it is ensured that good electromagnetic shielding performance, structural connection connection position
Progress electric conductive oxidation surface treatment is set, and more screw connection is arranged in link position, guarantees the reliable of connection and contact
It is good.In addition, having independent 22 component of ground stud for the ground state for ensuring product in the side plate Position Design of cabinet 1, connecing
22 material selection T2 copper alloy of ground pile, has good conductive property, and integrally carry out at surface gold-plating to ground stud part
Reason, further enhances electric conductivity.Outside ground line is connect with ground stud 22, is locked with 2 nuts, nut is fixed
Structure processed, material is T2 copper alloy, and carries out surface gold-plating processing.In addition, electric cabinet mounting surface flatness designs are as follows: 0.1mm/
100mm, installs surface roughness≤3.2 μm, and surface carries out the processing of primary colors electric conductive oxidation, guarantees the excellent conductive performance of mounting surface.
The above is only the preferred embodiment of the present invention is described, technical solution of the present invention is not limited to
This, those skilled in the art's made any known deformation on the basis of major technique of the present invention is conceived belongs to institute of the present invention
Technology scope to be protected.
Claims (9)
1. a kind of bloom spectrum loading electric cabinet system suitable for space environment, it is characterised in that: total including cabinet (1), control
Line motherboard (2) and multiple drawer type circuit units (3)；
Described cabinet (1) one end opens up multiple insert ports (11) from top to bottom, and the control bus is equipped in other end cabinet (1)
Motherboard (2), the position opposite with each insert port (11) is equipped with connector (21) on the control bus master (2)；
The quantity of the drawer type circuit unit (3) is adapted with the quantity of the insert port (11), and is corresponded, drawer type
Circuit unit (3) is arranged between insert port (11) and connector (21)；
The drawer type circuit unit (3) includes that fixed frame (30), circuit board functional module (4), electric connection (41) and electricity connect
Plug-in unit (42)；
The circuit board functional module (4) is mounted on fixed frame (30), installs the electricity in circuit board functional module (4) and connects
Head (41) and electrical connector (42)；
The circuit board functional module (4) is connect by electric connection (41) with the connector (21), circuit board functional module (4)
It is connect by electrical connector (42) with external equipment；
It is connect between the fixed frame (30) and cabinet (1) both side plate inner wall by slide assemblies.
2. a kind of bloom spectrum loading electric cabinet system suitable for space environment according to claim 1, it is characterised in that:
Each circuit board functional module (4) is equipped with L shape heat sink (5), and heat sink materials are T2 copper alloy.
3. a kind of bloom spectrum loading electric cabinet system suitable for space environment according to claim 1 or 2, feature exist
In: the material of the fixed frame (30) is 6061 duralumin, hard alumin ium alloys comprising left plate (31), right side plate (32), front side board
(34), back side panel (35)；
It is offered threaded hole (311) on the left plate (31) and right side plate (32), screw passes through circuit board functional module
(4), after threaded hole (311), circuit board functional module (4) is fixed on fixed frame (30)；
The front side board (34) is equipped with the mounting hole (321) for installing electrical connector (42).
4. a kind of bloom spectrum loading electric cabinet system suitable for space environment according to claim 3, it is characterised in that:
Cabinet (1) both side plate is plate fin heat-exchanging structure.
5. a kind of bloom spectrum loading electric cabinet system suitable for space environment according to claim 4, it is characterised in that:
Reinforcing rib (33) are equipped between the left plate (31) and right side plate (32), between front side board (34) and back side panel (35).
6. a kind of bloom spectrum loading electric cabinet system suitable for space environment according to claim 5, it is characterised in that:
The circuit board functional module (4) is analog acquisition board group part (6) or slave computer control panel component (7) or calibration power supply control
Board group part (8) or movement drive control plate component (9) or imaging circuit add power-off control panel component (10).
7. a kind of bloom spectrum loading electric cabinet system suitable for space environment according to claim 6, it is characterised in that:
The component that is slidably connected includes the linear guide (11) that left plate (31) and right side plate (32) outer wall is respectively set, is arranged in case
The guide groove cooperated on body (1) both side plate inner wall with linear guide (11).
8. a kind of bloom spectrum loading electric cabinet system suitable for space environment according to claim 7, it is characterised in that:
Linear guide (11) material is 6061 duralumin, hard alumin ium alloys.
9. a kind of bloom spectrum loading electric cabinet system suitable for space environment according to claim 1, it is characterised in that:
The cabinet (1) is equipped with ground stud (22), and material is T2 copper alloy；
The ground stud (22) carries out surface gold-plating processing.
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| CN201910631131.2A CN110366342A (en) | 2019-07-12 | 2019-07-12 | A kind of bloom spectrum loading electric cabinet system suitable for space environment |
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| CN201910631131.2A CN110366342A (en) | 2019-07-12 | 2019-07-12 | A kind of bloom spectrum loading electric cabinet system suitable for space environment |
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