CN103889179A - On-board electronic cabinet - Google Patents
On-board electronic cabinet Download PDFInfo
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- CN103889179A CN103889179A CN201410133931.9A CN201410133931A CN103889179A CN 103889179 A CN103889179 A CN 103889179A CN 201410133931 A CN201410133931 A CN 201410133931A CN 103889179 A CN103889179 A CN 103889179A
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Abstract
The invention provides an on-board electronic cabinet applied to the technical field of aviation electronic products. A front panel (1), a rear cover plate (2), an upper cover plate (3), a base plate (4), a left side plate (5) and a right side plate (6) of the on-board electronic cabinet form a hollow square frame structure. The inner surfaces of the front panel (1), the rear cover plate (2), the upper cover plate (3), the base plate (4), the left side plate (5) and the right side plate (6) are respectively provided with an oxidation layer (7) which is formed through conductive oxidation treatment. The outer surfaces of the front panel (1), the rear cover plate (2), the upper cover plate (3), the base plate (4), the left side plate (5) and the right side plate (6) are respectively coated with an enamel paint layer (8). According to the on-board electronic cabinet, the structure is simple, the electromagnetic compatibility is guaranteed, the resistance to electromagnetic interference is improved, the heat dissipation effect is improved, it is guaranteed that the on-board electronic cabinet can be operated under severe flight conditions, and work reliability and the adaptability of the on-board electronic cabinet and an airplane where the on-board electronic cabinet is carried are improved.
Description
Technical field
The invention belongs to Avionic Products technical field, more particularly, relate to a kind of airborne electronic equipment cabinet.
Background technology
Along with developing rapidly of avionics, the level of airborne electronic equipment cabinet has become one of important symbol of weighing aeroplane performance.Look back airborne electronic equipment evolution, successively develop the special electronic cabinet of many adaptation different type of machines models, as: for fire control with the dissimilar task such as the integrated avionics system that flies to control, multifunction radar system, atmosphere data treatment system, weapon SMS, integrated display system, data transmission system.The performance of airborne electronic equipment cabinet hardware is determined by circuit characteristic and architectural characteristic two parts, circuit characteristic determines the use function of airborne electronic equipment cabinet, architectural characteristic is determining the functional reliability of airborne electronic equipment cabinet under various harsh flying conditions, therefore develops one and should guarantee that the airborne electronic equipment cabinet that uses function, guarantees again functional reliability is the work that each new machine development must be paid attention to.
For adapting in various adverse circumstances for a long time reliably, working normally, will be on affecting the various factors (system configuration of airborne electronic equipment cabinet performance when design airborne electronic equipment cabinet, electrical characteristic, mechanical-physical structure etc.), take the airborne electronic equipment cabinet (be called reinforcing machine and carry electronic cabinet) of corresponding safeguard measure or claim anti-adverse environment airborne electronic equipment cabinet.Its feature: there is strong environmental suitability, high reliability, Gao Kewei.Airborne electronic equipment cabinet is reinforced and is generally included: anti-vibrating and impact is reinforced, electromagnetic compatibility strengthening, and high and low temperature is reinforced, three anti-(anticorrosion, mildew-resistant, salt fog resistances) reinforcing etc.Airborne electronic equipment system is usually operated in the thermal environment that temperature is very high, and statistics shows, 70% the electronic equipment too high thermal environment that lost efficacy is relevant.Harsher thermal environment produces serious influence to the normal work of most of electronic equipments, causes electronic devices and components to add inefficacy, thereby causes the inefficacy of whole equipment.By the working life that electricity lost efficacy, corrosion failure also can greatly reduce electronic devices and components of high-temperature induction.In recent years, along with the use of large scale integrated circuit, make Structural Design of Electronic System assemble future development towards microminiature, requirement to electronic system heat meter is also more and more higher, particularly be used in the electronic product under particular job environment bar, as being in for a long time severe ocean climate condition (temperature, high humidity, salt fog) under electronic equipment, the corrosion that is very easily damaged of metal material in equipment, nonmetallic materials are very easily aging and inefficacy also, cause the hydraulic performance decline of components and parts, even cause electric short circuit, have a strong impact on the performance and used life of equipment, simultaneously due to improving constantly that EMC Design requires, therefore can work alone in the urgent need to one, and the equipment of the highly versatile being hedged off from the outer world, heat dissipation design becomes this kind equipment vital step of can normally working.Therefore the structural thermal environment protection Design particular importance that seems.Along with the extensive use of electronic equipment and system and the development of electronic technology, electromagnetic environment becomes and becomes increasingly complex, it is more and more serious that electromagnetic interference also becomes, this has just proposed stricter more detailed requirement to system and equipment, also makes the research of electronic equipment Electro Magnetic Compatibility become urgent problem in modern times and following electronic device design and development process.Reinforce cabinet as a kind of electronic equipment, capability of electromagnetic shielding is had to very high requirement.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of simple in structure, high temperature resistant, resistance to electromagnetic interference, guarantees to adapt to carry the airborne electronic equipment cabinet of type functional reliability and applicability under harsh flying condition.
Solve above-described technical problem, the technical scheme that the present invention takes is:
The present invention is a kind of airborne electronic equipment cabinet, comprise front panel, back shroud, upper cover plate, base plate, left plate, right plate, described front panel, back shroud, upper cover plate, base plate, left plate, the frame type structure of right plate composition hollow, described front panel, back shroud, upper cover plate, base plate, left plate, the oxide layer forming is processed in the inner surface setting of right plate by electric conductive oxidation, described front panel, back shroud, upper cover plate, base plate, left plate, the inner surface of right plate is all designed to the structure of boss injustice, front panel, back shroud, upper cover plate, base plate, left plate, the outer surface spraying enamel paint layer of right plate.
In described airborne electronic equipment cabinet, comprise polylith power module, concave part is set on back shroud, power module is arranged in concave part, and heat conduction glue-line is set between power module and concave part, and on concave part, power module sealing is fixed on power supply cover plate in concave part by spiral-lock.
The fin formula fin that multiple tracks is protruded is set respectively on described back shroud and power supply cover plate, between the multiple tracks fin on back shroud, is arranged in parallel by gap, between the multiple tracks fin on power supply cover plate, be arranged in parallel by gap.
The fin formula fin that multiple tracks is protruded is set respectively on described left plate and right plate, between multiple tracks fin, is arranged in parallel by gap, the radiating groove of multiple tracks long trough is set respectively on upper cover plate and base plate.
In described airborne electronic equipment cabinet, there are interface board, polylith circuit board, power panel, multiple square plug-in unit, interconnection board, hard and soft plate and filter.
On described front panel, handle is set, electric connector, electric connector is connected with front panel by screw.
Described electronic cabinet also comprises multiple for clamping the locking member of multiple circuit boards, each locking member respectively comprises a latch assembly I, latch assembly II, latch assembly I and latch assembly II be separately positioned on left plate inwall and right plate inwall on, each circuit-board card is contained between a latch assembly I and a latch assembly II.
Between described electric connector and front panel, sealing ring is installed, described front panel, back shroud, upper cover plate, base plate, left plate, right plate is made by duralumin, hard alumin ium alloy material.
Adopt technical scheme of the present invention, can obtain following beneficial effect:
Airborne electronic equipment cabinet of the present invention, simple in structure, employing volume is little, lightweight high density material assembly, at the front panel of airborne electronic equipment cabinet, back shroud, upper cover plate, base plate, left plate, right plate inner surface is processed and is formed oxide layer by electric conductive oxidation, such setting, guarantee the Electro Magnetic Compatibility of electronic cabinet, improve the resistance to electromagnetic interference performance of cabinet, front panel, back shroud, upper cover plate, base plate, left plate, the outer surface spraying enamel paint layer of right plate, enhanced machine is carried the radiating effect on electronic cabinet surface, the design of fin formula fin, also improved radiating effect, cabinet integral resistance to elevated temperatures is improved, pass through said structure, airborne electronic equipment cabinet described in can guaranteeing can be worked under harsh flying condition, thereby the functional reliability and the applicability that improve airborne electronic equipment cabinet and carry type.Meanwhile, airborne electronic equipment cabinet of the present invention, not only intensity is good, lightweight, and possesses good anti-seismic performance, and the while is simple in structure, dismounting is easy to maintenance.
Accompanying drawing explanation
Mark in the each accompanying drawing of this specification expressed content and figure is made to brief description below:
Fig. 1 is the overall structure schematic diagram of airborne electronic equipment cabinet of the present invention;
Fig. 2 is the sectional structure schematic diagram of the A-A face of the airborne electronic equipment cabinet described in Fig. 1;
Fig. 3 is the sectional structure schematic diagram of the B-B face of the airborne electronic equipment cabinet described in Fig. 1;
Accompanying drawing acceptance of the bid note is respectively: 1, front panel; 2, back shroud; 3, upper cover plate; 4, base plate; 5, left plate; 6, right plate; 7, oxide layer; 8, enamel paint layer; 9, power module; 10, concave part; 11, heat conduction glue-line; 12, fin; 13, radiating groove; 14, handle; 15, electric connector; 16, circuit board; 17, latch assembly; 18, latch assembly I; 19, latch assembly II; 20, power supply cover plate.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail as effect and the operation principle etc. of the mutual alignment between the shape of related each member, structure, each several part and annexation, each several part:
As shown in accompanying drawing 1-accompanying drawing 3, the present invention is a kind of airborne electronic equipment cabinet, comprise front panel 1, back shroud 2, upper cover plate 3, base plate 4, left plate 5, right plate 6, described front panel 1, back shroud 2, upper cover plate 3, base plate 4, left plate 5, right plate 6 forms the frame type structure of hollow, described front panel 1, back shroud 2, upper cover plate 3, base plate 4, left plate 5, the oxide layer 7 forming is processed in the inner surface setting of right plate 6 by electric conductive oxidation, described front panel 1, back shroud 2, upper cover plate 3, base plate 4, left plate 5, the inner surface of right plate 6 is all designed to the structure of boss injustice, front panel 1, back shroud 2, upper cover plate 3, base plate 4, left plate 5, the outer surface spraying enamel paint layer 8 of right plate 6.
In described airborne electronic equipment cabinet, comprise polylith power module 9, concave part 10 is set on back shroud 2, power module 9 is arranged in concave part 10, between power module 9 and concave part 10, heat conduction glue-line 11 is set, on concave part 10, power module 9 sealings are fixed on the interior power supply cover plate 20 of concave part 10 by spiral-lock.
The fin formula fin 12 that multiple tracks is protruded is set respectively on described back shroud 2 and power supply cover plate 20, between the multiple tracks fin 12 on back shroud 2, is arranged in parallel by gap, between the multiple tracks fin 12 on power supply cover plate 20, be arranged in parallel by gap.
The fin formula fin that multiple tracks is protruded is set respectively on described left plate 5 and right plate 6, between multiple tracks fin, is arranged in parallel by gap, the radiating groove 13 of multiple tracks long trough is set respectively on upper cover plate 3 and base plate 4.
In described airborne electronic equipment cabinet, there are interface board, polylith circuit board, power panel, multiple square plug-in unit, interconnection board, hard and soft plate and filter.
On described front panel 1, handle 14 is set, electric connector 15, electric connector 15 is connected with front panel 1 by screw.
Described electronic cabinet also comprises multiple for clamping the locking member 17 of multiple circuit boards 16, each locking member 17 respectively comprises a latch assembly I 18, latch assembly II 19, latch assembly I 18 and latch assembly II 19 be separately positioned on left plate 5 inwalls and right plate 6 inwalls on, each circuit board 16 is installed between a latch assembly I 18 and a latch assembly II 19.
Between described electric connector 15 and front panel 1, sealing ring is installed, described front panel 1, back shroud 2, upper cover plate 3, base plate 4, left plate 5, right plate 6 is made by duralumin, hard alumin ium alloy material.
Airborne electronic equipment cabinet of the present invention, by multiple circuit boards, multiple power modules, filter, retaining mechanism and multiple air plug composition.For reaching the requirement of reinforcing, the front panel 1 of electronic cabinet, back shroud 2, upper cover plate 3, base plate 4, left plate 5, right plate 6 is made by duralumin, hard alumin ium alloy material.
Airborne electronic equipment cabinet of the present invention, according to environmental condition and instructions for use, for the unit being arranged in cabinet, guarantee under wider temperature range, to work, do not allow again the cooling blast unit element surface of directly flowing through, prevent moisture, the erosion of dust to components and parts, avoid the impact of the environment such as electromagnetic interference, bear again extremely harsh vibrations and impact, therefore cabinet must have the hermetically-sealed construction pattern of enough stiffnesses.In cabinet, need to install polylith printed circuit board, a block power supply plate and hard and soft plate for being connected with round electric connector.Electronic cabinet general shape as shown in Figure 1.This casing structure and technique are simple, and cost is low.
Described electronic cabinet comprises front panel 1, back shroud 2, upper cover plate 3, base plate 4, left plate 5, right plate 6, the hexahedron that above-mentioned parts is formed by connecting with screw, in order to guarantee sealing, EMC Requirements, described front panel 1, back shroud 2, upper cover plate 3, base plate 4, left plate 5, the inner surface of right plate 6 is all designed to the structure of boss injustice, and to front panel 1, back shroud 2, upper cover plate 3, base plate 4, left plate 5, the inner surface of right plate 6 carries out respectively electric conductive oxidation processing, forms oxide layer 7.Simultaneously in design with add and consider tolerance fit man-hour, guarantee designing requirement by these measures.
In addition, at the front panel 1 of cabinet, back shroud 2, upper cover plate 3, base plate 4, left plate 5, the outer surface of right plate 6 is spray black mat enamel paint respectively, forms spraying enamel paint layer 8, strengthens surface radiating effect.
Power module is directly installed on to (power module heating face is by the concave part bottom surface laminating on heat conduction glue-line and back shroud) on structure back shroud, and spiral-lock power supply cover plate on concave part, is fixed on power module sealing in concave part.Back shroud and power supply cover plate 20 outer surfaces are designed to fin formula version, thereby increase area of dissipation.In addition, front panel 1, back shroud 2, upper cover plate 3, base plate 4, left plate 5, right plate 6, under assurance function prerequisite, is considered heat radiation requirement, is designed to fin, rough structure, with increasing heat radiation area.
The major function of the front panel of electronic cabinet is mounting knob and multiple electric connector (each electric connector model is not quite similar).Electric connector is fixed by screw and front panel, carves the Function Identification of electric connector on front panel, in order to guarantee sealing, sealing ring is housed before electric connector and front panel simultaneously.
The main circuit of the cabinet inside of electronic cabinet will be made up of interface board, circuit board (polylith, function differ altogether), power panel, multiple square plug-in unit, interconnection board, hard and soft version-20, square plug-in unit and filter.The major function of interface board is that electric connector and interconnection board (by hard and soft version) are connected, and guarantees the input and output of signal, and the stitch of electric connector is directly inserted into interface board welding, and this mode can effectively guarantee the reliability of signal transmission.Interconnection board is arranged on the public motherboard as inner all circuit boards on chassis backplane, realizes the signal transmission between other circuit boards, and by the circuit board normalization of other practical functions, every circuit board bottom is connected with interconnection board by square plug-in unit.Power panel is as being the whole electronic cabinet of electric current supply for outside (passing through power module) processed.Help and pull out plate, retaining mechanism for circuit board is reinforced, circuit board can be worked reliably under larger shock and vibration environment, retaining mechanism links together circuit board casing structure part simultaneously, a part of heat that components and parts on circuit board can be produced is transmitted to casing structure part and (comprises front panel 1, back shroud 2, upper cover plate 3, base plate 4, left plate 5, right plate 6) upper, can play a part of heat sinking function.
Airborne electronic equipment cabinet of the present invention, simple in structure, employing volume is little, lightweight high density material assembly, at the front panel of airborne electronic equipment cabinet, back shroud, upper cover plate, base plate, left plate, right plate inner surface is processed and is formed oxide layer by electric conductive oxidation, such setting, guarantee the Electro Magnetic Compatibility of electronic cabinet, improve the resistance to electromagnetic interference performance of cabinet, front panel, back shroud, upper cover plate, base plate, left plate, the outer surface spraying enamel paint layer of right plate, enhanced machine is carried the radiating effect on electronic cabinet surface, the design of fin formula fin, also improved radiating effect, cabinet integral resistance to elevated temperatures is improved, pass through said structure, airborne electronic equipment cabinet described in can guaranteeing can be worked under harsh flying condition, thereby the functional reliability and the applicability that improve airborne electronic equipment cabinet and carry type.Meanwhile, airborne electronic equipment cabinet of the present invention, not only intensity is good, lightweight, and possesses good anti-seismic performance, and the while is simple in structure, dismounting is easy to maintenance.
By reference to the accompanying drawings the present invention is carried out to exemplary description above; obviously the concrete realization of the present invention is not subject to the restrictions described above; as long as the various improvement that adopted method design of the present invention and technical scheme to carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasions, all in protection scope of the present invention.
Claims (8)
1. an airborne electronic equipment cabinet, comprise front panel (1), back shroud (2), upper cover plate (3), base plate (4), left plate (5), right plate (6), it is characterized in that: described front panel (1), back shroud (2), upper cover plate (3), base plate (4), left plate (5), the frame type structure of right plate (6) composition hollow, described front panel (1), back shroud (2), upper cover plate (3), base plate (4), left plate (5), the oxide layer (7) forming is processed in the inner surface setting of right plate (6) by electric conductive oxidation, described front panel (1), back shroud (2), upper cover plate (3), base plate (4), left plate (5), the inner surface of right plate (6) is all designed to the structure of boss injustice, front panel (1), back shroud (2), upper cover plate (3), base plate (4), left plate (5), the outer surface spraying enamel paint layer (8) of right plate (6).
2. airborne electronic equipment cabinet according to claim 1, it is characterized in that: in described airborne electronic equipment cabinet, comprise polylith power module (9), concave part (10) is set on back shroud (2), power module (9) is arranged in concave part (10), between power module (9) and concave part (10), heat conduction glue-line (11) is set, power module (9) sealing is fixed on the interior power supply cover plate of concave part (10) (20) by the upper spiral-lock of concave part (10).
3. airborne electronic equipment cabinet according to claim 2, it is characterized in that: the fin formula fin (12) that multiple tracks is protruded is set respectively on described back shroud (2) and power supply cover plate (20), between multiple tracks fin (12) on back shroud (2), be arranged in parallel by gap, between the multiple tracks fin (12) on power supply cover plate (20), be arranged in parallel by gap.
4. according to the airborne electronic equipment cabinet described in claim 2 or 3, it is characterized in that: the fin formula fin that multiple tracks is protruded is set respectively on described left plate (5) and right plate (6), between multiple tracks fin, be arranged in parallel by gap, the radiating groove (13) of multiple tracks long trough is set respectively on upper cover plate (3) and base plate (4).
5. airborne electronic equipment cabinet according to claim 4, is characterized in that: in described airborne electronic equipment cabinet, have interface board, polylith circuit board, power panel, multiple square plug-in unit, interconnection board, hard and soft plate and filter.
6. airborne electronic equipment cabinet according to claim 5, is characterized in that: handle (14) is set on described front panel (1), and electric connector (15), electric connector (15) is connected with front panel (1) by screw.
7. airborne electronic equipment cabinet according to claim 6, it is characterized in that: described electronic cabinet also comprises multiple for clamping the locking member (17) of multiple circuit boards (16), each locking member (17) respectively comprises a latch assembly I (18), latch assembly II (19), latch assembly I (18) and latch assembly II (19) are separately positioned on left plate (5) inwall and on right plate (6) inwall, and each circuit board (16) is installed between a latch assembly I (18) and a latch assembly II (19).
8. airborne electronic equipment cabinet according to claim 7, it is characterized in that: between described electric connector (15) and front panel (1), sealing ring is installed, described front panel (1), back shroud (2), upper cover plate (3), base plate (4), left plate (5), right plate (6) is made by duralumin, hard alumin ium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410133931.9A CN103889179A (en) | 2014-04-03 | 2014-04-03 | On-board electronic cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410133931.9A CN103889179A (en) | 2014-04-03 | 2014-04-03 | On-board electronic cabinet |
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| CN103889179A true CN103889179A (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410133931.9A Pending CN103889179A (en) | 2014-04-03 | 2014-04-03 | On-board electronic cabinet |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105263278A (en) * | 2015-11-19 | 2016-01-20 | 中国科学院国家空间科学中心 | Satellite-borne vertical combination electronic equipment chassis |
| CN105451499A (en) * | 2015-12-11 | 2016-03-30 | 中国航空工业集团公司西安航空计算技术研究所 | High-density three-dimensional stacking and assembling method for electronic modules |
| CN105934141A (en) * | 2016-06-28 | 2016-09-07 | 北京无线电测量研究所 | Modular airtight cold guide case |
| CN106231443A (en) * | 2016-09-12 | 2016-12-14 | 国网福建省电力有限公司 | A kind of shell and airborne transceiver arrangement |
| CN106550587A (en) * | 2016-10-28 | 2017-03-29 | 重庆长安工业(集团)有限责任公司 | A kind of air flows through the radiator structure inside sealed machine box |
| CN107172841A (en) * | 2017-06-26 | 2017-09-15 | 昆山申凌精密金属工业有限公司 | A kind of Easy Move and the cabinet installed |
| CN108155962A (en) * | 2017-12-30 | 2018-06-12 | 广州市源瑞信息科技有限公司 | A kind of broadcast box suitable for subway train |
| CN109709355A (en) * | 2018-12-14 | 2019-05-03 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of airborne 1394 sub-card test equipment |
| CN110337209A (en) * | 2019-07-16 | 2019-10-15 | 中国电子科技集团公司第二十九研究所 | A kind of electronic cabinet and its assemble method of structure-function integration |
| CN112144054A (en) * | 2020-08-27 | 2020-12-29 | 东南大学 | Laser cladding cooling device with fin type cooling fins |
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| JP2001339185A (en) * | 2000-05-26 | 2001-12-07 | Hitachi Telecom Technol Ltd | Cabinet structure of electronic apparatus equipment |
| CN101768383A (en) * | 2009-12-22 | 2010-07-07 | 中国航空工业集团公司第六三一研究所 | Lacquer for machine case and spraying process thereof |
| CN202095104U (en) * | 2010-12-20 | 2011-12-28 | 北京首科中系希电信息技术有限公司 | GSMR (global system for mobile communication-railway) /ITCS (Integrated Traffic Control Systems) vehicle-mounted mobile terminal |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105263278B (en) * | 2015-11-19 | 2017-12-12 | 中国科学院国家空间科学中心 | A kind of spaceborne Vertical Combination electronic equipment chassis |
| CN105263278A (en) * | 2015-11-19 | 2016-01-20 | 中国科学院国家空间科学中心 | Satellite-borne vertical combination electronic equipment chassis |
| CN105451499A (en) * | 2015-12-11 | 2016-03-30 | 中国航空工业集团公司西安航空计算技术研究所 | High-density three-dimensional stacking and assembling method for electronic modules |
| CN105451499B (en) * | 2015-12-11 | 2018-03-30 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of density three-dimensional stack assembly method of electronic module |
| CN105934141A (en) * | 2016-06-28 | 2016-09-07 | 北京无线电测量研究所 | Modular airtight cold guide case |
| CN105934141B (en) * | 2016-06-28 | 2018-02-13 | 北京无线电测量研究所 | A kind of closed conduction cooling cabinet of modularization |
| CN106231443A (en) * | 2016-09-12 | 2016-12-14 | 国网福建省电力有限公司 | A kind of shell and airborne transceiver arrangement |
| CN106550587A (en) * | 2016-10-28 | 2017-03-29 | 重庆长安工业(集团)有限责任公司 | A kind of air flows through the radiator structure inside sealed machine box |
| CN107172841A (en) * | 2017-06-26 | 2017-09-15 | 昆山申凌精密金属工业有限公司 | A kind of Easy Move and the cabinet installed |
| CN108155962A (en) * | 2017-12-30 | 2018-06-12 | 广州市源瑞信息科技有限公司 | A kind of broadcast box suitable for subway train |
| CN109709355A (en) * | 2018-12-14 | 2019-05-03 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of airborne 1394 sub-card test equipment |
| CN109709355B (en) * | 2018-12-14 | 2021-09-14 | 中国航空工业集团公司西安航空计算技术研究所 | Airborne 1394 daughter card test equipment |
| CN110337209A (en) * | 2019-07-16 | 2019-10-15 | 中国电子科技集团公司第二十九研究所 | A kind of electronic cabinet and its assemble method of structure-function integration |
| CN112144054A (en) * | 2020-08-27 | 2020-12-29 | 东南大学 | Laser cladding cooling device with fin type cooling fins |
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