Platform integrated electronic single machine

Abstract

The invention discloses a platform integrated electronic single machine, the electronic single machine comprises an upper layer module and a lower layer module, the upper layer module comprises an upper cover, and the lower layer module comprises a bottom plate; the upper layer module and the lower layer module are fixedly connected in a flat plate stacking mode, and an inter-plate connector used for achieving electrical interconnection is arranged between the upper layer module and the lower layer module. The upper cover and the bottom plate are oppositely arranged and are fixedly connected through a connecting piece to form an external shell of the electronic single machine; and a functional sub-module is arranged in the outer shell. The platform integrated electronic stand-alone provided by the invention is highly integrated, excellent in heat dissipation and firm in structure.

Description

Technical Field

[0001] This invention relates to the field of aerospace single-unit product technology, and in particular to a platform-integrated electronic single unit. Background Technology

[0002] The integrated electronic system of a satellite is the core control hub of the satellite platform, undertaking information processing, equipment control, and resource scheduling functions. Currently, most small satellite platform equipment is still managed in a distributed manner, with each subsystem such as satellite operations, telemetry, tracking, command and control, power supply, and attitude control being independent devices, each supported by one or more individual units. This distributed satellite platform can no longer meet the current requirements of satellites for small platform equipment size, light weight, and short development cycles. At the same time, in order to better allocate satellite resources, the requirements for unified application and allocation of hardware resources for small satellites are becoming increasingly stringent, and the integration level of the overall satellite platform's electronic system largely determines the performance of the small satellite platform.

[0003] Therefore, there is an urgent need for an integrated platform-based electronic unit that can integrate functions such as space operations, telemetry and control, power supply, and attitude control, while also meeting the requirements of small size, light weight, and fast heat dissipation of the power supply module. Summary of the Invention

[0004] The present invention aims to solve the above problems and provide a highly integrated, heat-dissipating, and robust platform-based electronic single unit.

[0005] To achieve the above objectives, the present invention provides the following technical solution: In a first aspect, embodiments of the present invention provide a platform-integrated electronic stand-alone unit, the electronic stand-alone unit including an upper module and a lower module, the upper module including an upper cover, and the lower module including a base plate; The upper module and the lower module are fixedly connected by a flat plate stacking method, and an inter-board connector for electrical interconnection is provided between the upper module and the lower module; The upper cover and the bottom plate are arranged opposite to each other and are fixedly connected by connectors to form the outer shell of the electronic unit; the interior of the outer shell is provided with functional sub-modules.

[0006] Furthermore, the functional sub-modules are provided in multiple layers inside the outer housing; the functional sub-modules include a comprehensive management sub-module, a GNSS sub-module, and a telemetry, control, communication, and power supply sub-module; The integrated management submodule is located on the upper layer, inside the upper cover; the GNSS submodule and the telemetry, communication and power supply submodule are arranged side by side on the lower layer, and the GNSS submodule and the telemetry, communication and power supply submodule are located on the bottom plate. Each of the functional sub-modules includes a printed circuit board, a front cover plate and a rear cover plate respectively fixed on both sides of the printed circuit board, and related components and electrical connectors are provided on the printed circuit board.

[0007] Furthermore, the measurement, control, communication, and power supply submodule includes a power supply module and a measurement, control, and communication module, both of which are mounted on the printed circuit board of the measurement, control, communication, and power supply submodule; the power supply module includes a DC / DC converter and a filter converter. The bottom surface of the base plate opposite to the top cover is designed with a Z-shaped cross-sectional structure. The bottom surface of the base plate has an upward convex area in the middle. The power module is installed below the upward convex area. The upper surface of the power module is attached and fixed to the upward convex area. The lower surface of the power module is provided with a power cover plate.

[0008] Furthermore, a reinforcing rib network is provided on the inner side of the upper cover and the bottom surface of the bottom plate. The reinforcing rib network includes multiple transverse reinforcing ribs and multiple longitudinal reinforcing ribs, which are evenly arranged on the inner side of the upper cover and the bottom plate.

[0009] Furthermore, the reinforcing rib network is integrally formed with the top cover or bottom plate, and the reinforcing rib network is disposed away from the components on the printed circuit board; the cross-sectional shape of the transverse reinforcing rib and the longitudinal reinforcing rib is one of rectangular, trapezoidal or semi-circular.

[0010] Furthermore, the integrated management submodule includes an integrated management printed circuit board, an integrated management front cover, and an integrated management rear cover; the integrated management front cover and the integrated management rear cover are respectively provided with a front-end electrical connector L1 and a rear-end electrical connector L2; One end of the front-end electrical connector L1 and the rear-end electrical connector L2 are respectively welded and fixed to the integrated management printed circuit board, and the other end of the front-end electrical connector L1 and the rear-end electrical connector L2 are respectively bolted to the integrated management front cover plate and the integrated management rear cover plate. The front-end electrical connector and the rear-end electrical connector are bent-pin printed circuit board type connectors.

[0011] Furthermore, the GNSS submodule includes a GNSS printed circuit board, a GNSS front cover plate, and a GNSS rear cover plate; a front-end electrical connector L3 and a rear-end electrical connector L4 are respectively provided on the GNSS front cover plate and the GNSS rear cover plate. The measurement, control, communication and power supply submodule includes a measurement, control, communication and power supply printed circuit board, a measurement, control, communication and power supply front cover plate and a measurement, control, communication and power supply rear cover plate; the measurement, control, communication and power supply front cover plate and the measurement, control, communication and power supply rear cover plate are respectively provided with a front-end electrical connector L5 and a rear-end electrical connector L6.

[0012] Furthermore, both sides of the top cover and the bottom plate are provided with sidewalls, and multiple grooves are provided on the sidewalls of the top cover and the bottom plate, which are used as handles.

[0013] Furthermore, the connector includes a first guide post and a fixing screw; Each of the base plates is provided with a number of first guide posts, which are used for positioning when the upper cover and the base plate are closed. The upper cover has several first through holes. The upper cover and the bottom plate are fixedly connected by first guide posts and fixing screws passing through the through holes. The first guide posts are adapted to the fixing screws.

[0014] Furthermore, a grounding stake is provided on the outer side of the outer casing, which is used to connect to the whole satellite reference grounding stake.

[0015] The technical effects and advantages of this invention are as follows: This invention provides a platform-integrated electronic unit structure that can integrate functions such as satellite operations, telemetry and control, power supply, and attitude control. The integrated electronic unit adopts a two-layer flat-panel stacked modular design, with the upper layer being an integrated management module and the lower layer consisting of a telemetry and control communication and power supply module and a GNSS module. Furthermore, the upper and lower layer modules interact with each other through inter-board connectors. This invention achieves modularity, universality, mass production capability, and integration, and is technically simple, stable, and reliable.

[0016] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a platform-integrated electronic single-unit according to an embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a platform-integrated electronic single-unit according to an embodiment of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the structure of a platform-integrated electronic single-unit according to an embodiment of the present invention. Figure 3 ; Figure 4This is an exploded view of the structure of an integrated electronic unit according to an embodiment of the present invention; Figure 5 This is a front view of the upper and lower modules in an embodiment of the present invention. Figure 6 This is a reverse structural diagram of the upper and lower modules in an embodiment of the present invention; Figure 7 This is an exploded view of the upper-level module in an embodiment of the present invention; Figure 8 This is a cross-sectional view of the base plate in an embodiment of the present invention; Figure 9 This is a bottom view of the base plate in an embodiment of the present invention; Figure 10 This is an exploded view of the electrical connector in an embodiment of the present invention; Figure 11 This is a top view of the base plate in an embodiment of the present invention; Figure 12 This is a schematic diagram of the reinforcing rib layout of the upper cover in an embodiment of the present invention; In the diagram, 10 is the base plate; 101 is the convex area; 102 is the lug; 11 is the GNSS front cover; 12 is the GNSS rear cover; 13 is the GNSS printed circuit board; 14 is the front cover for telemetry, communication, and power supply; 15 is the rear cover for telemetry, communication, and power supply; 16 is the printed circuit board for telemetry, communication, and power supply; 17 is the power module; 171 is the DC / DC assembly; 172 is the filter assembly; 18 is the power cover; 19 is the grounding stake; 20 is the top cover; 21 is the integrated management front cover; 22 is the integrated management rear cover; 23 is the integrated management printed circuit board; 31 is the fixing screw; and 32 is the first guide. 33. Column; 34. Groove; 35. Screw post; 36. Transverse stiffener; 37. Longitudinal stiffener; L1. Front-end electrical connector of integrated management submodule; L2. Rear-end electrical connector of integrated management submodule; L3. Front-end electrical connector of GNSS submodule; L4. Rear-end electrical connector of GNSS submodule; L5. Front-end electrical connector of telemetry, communication and power supply submodule; L6. Rear-end electrical connector of telemetry, communication and power supply submodule; X01. OC direct command electrical connector; X02. External telemetry and control signal input / output channel electrical connector; X03. Primary power input Electrical connectors; X04, 00M clock connector; X05, PPS second pulse connector; X06, primary power supply connector; X07, OC indirect command connector; X08, motor Hall or potentiometer acquisition connector; X09, RS422 attitude and track control connector; X10, attitude and track control CAN bus connector; X11, load data MAC / CAN connector; X12, first navigation antenna connector; X13, second navigation antenna connector; X14, secondary power supply connector; X15, main telemetry and control receiving antenna connector; X 16. Main telemetry and control transmitting antenna electrical connector; X17. Main data transmission receiving antenna electrical connector; X18. Backup telemetry and control receiving antenna electrical connector; X19. Backup telemetry and control transmitting antenna electrical connector; X20. Backup data transmission receiving antenna electrical connector; X21. Magnet rod drive and satellite-rocket separation electrical connector; X22. Stepper motor drive electrical connector; X23. Voltage acquisition electrical connector; X24. First temperature control and temperature acquisition electrical connector; X25. Second temperature control and temperature acquisition electrical connector; X26. Third temperature control and temperature acquisition electrical connector; X27. Inter-board electrical connector. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] To address the shortcomings of existing technologies, such as Figure 1 As shown in the figure, an embodiment of the present invention discloses a platform-integrated electronic unit. The electronic unit mainly adopts a two-layer flat-panel stacked modular design, that is, the electronic unit mainly includes an upper-layer module and a lower-layer module.

[0021] The upper module includes an upper cover 20 as the upper main structure, and the lower module includes a base plate 10 as the lower main structure; the upper cover 20 and the base plate 10 are arranged opposite to each other and fixedly connected by connectors, and the upper cover 20 and the base plate 10 together constitute the outer shell of the electronic unit.

[0022] like Figure 2 As shown, multiple functional sub-modules are integrated and installed inside the outer casing. These sub-modules include a comprehensive management sub-module, a GNSS sub-module, and a telemetry, communication, and power supply sub-module. The comprehensive management sub-module is located on the upper layer, inside the upper cover 20. The GNSS sub-module and the telemetry, communication, and power supply sub-module are arranged side-by-side on the lower layer, situated on the base plate 10. In other words, the upper-layer module of this invention includes the upper cover 20 and the comprehensive management sub-module, while the lower-layer module includes the base plate 10, the GNSS sub-module, and the telemetry, communication, and power supply sub-module.

[0023] At least one inter-board connector X27 is provided between the upper-level module and the lower-level module. The inter-board connector X27 is used to achieve electrical interconnection and information exchange. Specifically, the inter-board connector X27 is located between the upper-level functional sub-module and the lower-level functional sub-module; one end of the inter-board connector X27 connects to the upper-level integrated management sub-module, and the other end connects to the lower-level GNSS sub-module and the telemetry, communication, and power supply sub-module, respectively. Specifically, in this embodiment, two inter-board connectors are provided: a first inter-board connector and a second inter-board connector. One end of the first inter-board connector connects to the upper-level integrated management sub-module, and the other end connects to the lower-level GNSS sub-module. One end of the second inter-board connector connects to the upper-level integrated management sub-module, and the other end connects to the lower-level telemetry, communication, and power supply sub-module.

[0024] This invention achieves the high integration of multiple functional sub-modules within the same housing.

[0025] In some specific embodiments, such as Figure 3 and Figure 4As shown, the connector includes several first guide posts 32 and corresponding fixing screws 31; both the upper cover 20 and the base plate 10 are provided with several guide posts, and the first guide posts 32 are used for positioning when the upper cover 20 and the base plate 10 are closed; the upper cover 20 and the base plate 10 are fixedly connected by the first guide posts 32 and the fixing screws 31, and the first guide posts 32 and the fixing screws 31 are adapted to each other; the first guide posts 32 and the fixing screws 31 can enable the upper cover 20 and the base plate 10 to be assembled to form an outer shell, while ensuring the installation accuracy between the upper and lower layers.

[0026] In some specific embodiments, each functional submodule includes a printed circuit board, a front cover plate and a rear cover plate respectively fixed on both sides of the printed circuit board, and the printed circuit board is provided with relevant components and electrical connectors of the functional submodule.

[0027] Specifically, such as Figure 4 As shown, the integrated management submodule includes an integrated management printed circuit board 23, an integrated management front cover 21, and an integrated management rear cover 22. (As...) Figure 5 and Figure 6 As shown, a front-end electrical connector L1 and a rear-end electrical connector L2 are respectively provided on the integrated management front cover 21 and integrated management rear cover 22. One end of the front-end electrical connector L1 and the rear-end electrical connector L2 are respectively welded and fixed to the integrated management printed circuit board 23, and the other end of the front-end electrical connector L1 and the rear-end electrical connector L2 are respectively bolted to the integrated management front cover 21 and the integrated management rear cover 22. The front-end electrical connector L1 and the rear-end electrical connector L2 are bent-insertion printed circuit board type electrical connectors, that is, one end is welded to the printed circuit board, and the other end passes through the opening on the upper cover 20 and is fixed to the upper cover 20 by screws 34; this connection method makes the external cable connection simpler and more reliable.

[0028] The integrated management submodule is used to implement functions such as computer minimum system, remote control data processing, telemetry / data transmission data framing, communication, indirect command management, energy management, time management, thermal control management, attitude and orbit control calculation, thermocouple and magnetometer signal acquisition, and data storage.

[0029] like Figure 4 As shown, the GNSS submodule includes a GNSS printed circuit board 13, a GNSS front cover plate 11, and a GNSS rear cover plate 12. Figure 5 and Figure 6As shown, a front-end electrical connector L3 and a rear-end electrical connector L4 are respectively provided on the GNSS front cover plate 11 and the GNSS rear cover plate 12; one end of the front-end electrical connector L3 and the rear-end electrical connector L4 are respectively soldered and fixed to the GNSS printed circuit board 13, and the other end of the front-end electrical connector L3 and the rear-end electrical connector L4 are respectively bolted to the GNSS front cover plate 11 and the GNSS rear cover plate 12. The GNSS submodule is used to realize functions such as GNSS baseband processing, radio frequency conversion, and GNSS navigation data processing.

[0030] like Figure 4 As shown, the measurement, control, communication, and power supply submodule includes a measurement, control, communication, and power supply printed circuit board 16, a measurement, control, communication, and power supply front cover 14, and a measurement, control, communication, and power supply rear cover 15. For example... Figure 5 and Figure 6 As shown, a front-end electrical connector L5 and a rear-end electrical connector L6 are respectively provided on the front cover plate 14 and the rear cover plate 15 of the measurement, control, communication and power supply. One end of the front-end electrical connector L5 and the rear-end electrical connector L6 are respectively soldered to the printed circuit board 16 of the measurement, control, communication and power supply, and the other end of the front-end electrical connector L5 and the rear-end electrical connector L6 are respectively bolted to the front cover plate 14 and the rear cover plate 15 of the measurement, control, communication and power supply.

[0031] The measurement, control, communication, and power supply submodule is used to demodulate, decode, and output data frames after receiving uplink remote control data, as well as to judge and process direct commands and encode, modulate, and output downlink telemetry / data transmission data.

[0032] In this embodiment, the integrated management submodule, the GNSS submodule, and the telemetry, communication and power supply submodule are each encapsulated by independent front and rear cover plates to form independent electromagnetic shielding cavities.

[0033] In some specific embodiments, such as Figure 7 As shown, both the upper cover 20 and the base plate 10 are provided with a plurality of screws 34, the upper cover 20 is provided with a second guide post, and the base plate 10 is provided with a third guide post.

[0034] The integrated management printed circuit board 23 is provided with a second through hole. When the integrated management printed circuit board 23 with the front and rear covers installed is installed with the upper cover 20, it is positioned by the second guide post. Then, the fixing screw 34 is used to pass through the second through hole and connect with the second guide post to complete the positioning. The integrated management sub-module and the upper cover 20 are then fixed by the screw post 35 and the screw 34.

[0035] The GNSS printed circuit board 13 and the telemetry, communication and power printed circuit board 16 are provided with a third through hole. When the GNSS printed circuit board 13 and the telemetry, communication and power printed circuit board 16 with the front and rear covers installed are installed with the base plate 10, they are positioned by the third guide post. Then, the fixing screw 31 is used to pass through the third through hole and connect with the third guide post to complete the positioning. The integrated management submodule, the telemetry, communication and power printed circuit board 16 and the base plate 10 are then fixed by the screw post 35 and the screw 34.

[0036] The installation process of the integrated management submodule is as follows: First, the front electrical connector L1 and the rear electrical connector L2 are soldered to the integrated management printed circuit board 23; then, the integrated management front cover plate 21 is fixed to the integrated management printed circuit board 23 with screws 34, and the integrated management rear cover plate 22 is fixed to the integrated management printed circuit board 23 with screws 34; finally, the integrated management printed circuit board 23 and its integrated management front and rear cover plates are positioned by the second guide post and the corresponding fixing screws 31, and fixed to the upper cover 20 by screws 34 and screw posts 35.

[0037] The GNSS module (including printed circuit board and front and rear covers) and the telemetry, communication and power module (including printed circuit board and front and rear covers) are pre-assembled in a similar manner and then fixed to the base plate 10 by screws 34 and screw posts 34 located on the base plate 10. This modular design facilitates independent testing, maintenance and replacement.

[0038] A second guide post and a third guide post are respectively provided on the top cover 20 and the bottom plate 10 to ensure the installation accuracy of the integrated management printed circuit board 23 and the top cover 20, as well as the installation accuracy of the GNSS submodule and the telemetry, communication and power supply submodule and the bottom plate 10, so as to make the inter-board connectors plug and unplug smoothly and avoid damage to the pins.

[0039] In some specific embodiments, the upper cover 20 and the base plate 10 are provided with sidewalls on both the left and right sides, which makes the structure more stable and robust. Multiple grooves 33 are provided on the sidewalls of the upper cover 20 and the base plate 10. These grooves 33 remove some material, achieving weight reduction; furthermore, their shape and depth are suitable for use as handles when handling a single unit, facilitating operation. Specifically, the upper cover 20 and the base plate 10 are provided with first guide posts 32 on their sidewalls.

[0040] The front and rear ends of the upper cover 20 and the base plate 10 are both notched areas. The integrated management front cover 21 and integrated management rear cover 22 of the upper integrated management submodule are adapted to the front and rear notched areas of the upper cover 20, respectively, so that the integrated management front cover 21 and integrated management rear cover 22 are exposed to the outside, so as to facilitate the interface connection of the front electrical connector L1 and the rear electrical connector L2 provided on the integrated management front cover 21 and integrated management rear cover 22.

[0041] Similarly, the GNSS front cover plate 11 corresponding to the GNSS sub-module located in the lower layer and the measurement and control communication and power supply front cover plate 14 are spliced together to exactly fit the notch area at the front end of the bottom plate 10, and the GNSS rear cover plate 12 and the measurement and control communication and power supply rear cover plate 15 are also spliced together to exactly fit the notch area at the rear end of the bottom plate 10; this also makes the GNSS front cover plate 11, the GNSS rear cover plate 12, the measurement and control communication and power supply front cover plate 14, and the measurement and control communication and power supply rear cover plate 15 exposed outside, so as to facilitate the setting of the front-end electrical connectors L3, L5 and the rear-end electrical connectors L4, L6 on these front and rear cover plates for interface connection.

[0042] Through this design method, the present invention enables the overall external housing to be perfectly adapted to the multiple functional sub-modules inside. While enabling each functional sub-module to be independently set, having its own front and rear covers for protection and facilitating installation and disassembly; it can also directly expose the electrical connectors MAC / CAN of the functional sub-modules outside for easy interfacing, without the need to additionally set external front and rear covers, saving costs and reducing the overall volume of the electronic single unit.

[0043] In some specific embodiments, a power supply module 17 and a measurement and control communication module are installed on the GNSS of the measurement and control communication and power supply printed circuit board 1613.

[0044] As Figure 8 shown, the bottom surface of the bottom plate 10 is designed with a "ji" - shaped cross-section structure, that is, a convex region 101 is provided in the middle part of the bottom surface of the bottom plate 10; the power supply module 17 is installed below the convex region 101, the upper surface of the power supply module 17 is fixedly adhered to the convex region 101, the power supply module 17 is adapted to the convex region 101, and a power supply cover plate 18 is further provided on the lower surface of the power supply module 17, and the power supply cover plate 18 is flush with the lower surface of the bottom plate 10.

[0045] The upper surface of the power supply module 17 in the measurement and control communication and power supply sub-module is in close contact with the measurement and control communication and power supply printed circuit board 16. After the lower surface of the power supply module 17 is fitted to the convex region 101, it is fixed by screws 34, so that the heat generated when the power supply module 17 works can be fully exported, which well solves the problem that it is difficult to export the heat of the power supply module during the operation of the integrated electronic single unit. At the same time, it reduces the temperature of the power supply module 17 during operation and improves the working life of the components.

[0046] As Figure 9As shown, the power module 17 includes a DC / DC component 171 and a filter component 172 for secondary power conversion and distribution. The number of DC / DC components 171 and filter components 172 can be adjusted according to actual needs. The pins of the DC / DC components 171 and filter components 172 are soldered to the measurement and control communication and power printed circuit board 16 through openings in the base plate 10. This method allows different modules to be manufactured by different suppliers and developed collaboratively, shortening the manufacturing cycle.

[0047] In some specific embodiments, such as Figure 10 As shown, the front-end electrical connector L1 of the integrated management submodule includes: magnetic rod drive and star-rocket separation electrical connector X21, stepper motor drive electrical connector X22, voltage acquisition electrical connector X23, first temperature control and temperature acquisition electrical connector X24, second temperature control and temperature acquisition electrical connector X25, and third temperature control and temperature acquisition electrical connector X26.

[0048] The back-end electrical connectors L2 of the integrated management submodule include: primary power supply connector X06, OC indirect command connector X07, motor Hall or potentiometer acquisition connector X08, RS422 attitude and track control connector X09, attitude and track control CAN bus connector X10, and load data connector X11.

[0049] The front-end electrical connector L3 of the GNSS submodule includes: a first navigation antenna electrical connector X12 and a second navigation antenna electrical connector X13.

[0050] The back-end electrical connector L4 of the GNSS submodule includes: a 100M clock electrical connector X04 and a PPS second pulse electrical connector X05.

[0051] The front-end electrical connector L5 of the measurement and control communication and power supply submodule includes: secondary power supply electrical connector X14, main measurement and control receiving antenna electrical connector X15, main measurement and control transmitting antenna electrical connector X16, main data transmission receiving antenna electrical connector X17, backup measurement and control receiving antenna electrical connector X18, backup measurement and control transmitting antenna electrical connector X19, and backup data transmission receiving antenna electrical connector X20.

[0052] The back-end electrical connector L6 of the measurement, control, communication and power supply submodule includes: OC direct command electrical connector X01, external measurement and control signal input / output channel electrical connector X02, and primary power input electrical connector X03.

[0053] In some specific embodiments, a reinforcing rib network is provided on the inner side of the upper cover 20 and the bottom surface of the base plate 10. The reinforcing rib network and the upper cover 20 or the base plate 10 are integrally formed, and the reinforcing rib network is disposed away from the components on the printed circuit board.

[0054] The reinforcing rib network includes multiple transverse reinforcing ribs 36 and multiple longitudinal reinforcing ribs 37, which are evenly arranged on the inner side of the upper cover 20 and the bottom plate 10. The cross-sectional shape of the transverse reinforcing ribs 36 and the longitudinal reinforcing ribs 37 is one of rectangle, trapezoid, or semicircle. The reinforcing rib network can enhance the strength of the entire upper cover 20 or bottom plate 10.

[0055] For example, the layout of the reinforcing rib network on the base plate 10 is as follows: Figure 11 As shown, the reinforcing rib network is set around the upper convex area 101 of the base plate 10. First, the inner ring of horizontal / longitudinal reinforcing ribs 37 is set close to the outer periphery of the upper convex area 101. Then, the outer ring of horizontal / longitudinal reinforcing ribs 37 is set close to the outer contour of the base plate 10. Finally, horizontal / longitudinal reinforcing ribs 37 are further set between the inner ring of horizontal / longitudinal reinforcing ribs 37 and the outer ring of horizontal / longitudinal reinforcing ribs 37. The specific setting is set according to the space size and actual situation.

[0056] Specifically, the layout of the reinforcing rib network on the base plate 10 is as follows: Three transverse reinforcing ribs 36 are set on the left side, approximately at 1 / 4, 1 / 2, and 3 / 4 of the longitudinal direction; one longitudinal reinforcing rib 37 is set approximately at the left 1 / 2 position. On the right side, three transverse reinforcing ribs 36 are set approximately at 1 / 4, 1 / 2, and 3 / 4 of the longitudinal direction; one longitudinal reinforcing rib 37 is set approximately at the right 1 / 2 position. The layout of the entire reinforcing rib network is not limited to the arrangement in this embodiment; the layout can be adjusted based on mechanical simulation results, for example, one transverse rib (set at 1 / 2 position) or two transverse ribs (set at 1 / 3 and 2 / 3 positions); that is, the reinforcing ribs can be roughly evenly distributed according to actual needs, while avoiding components.

[0057] Similarly, the layout of the reinforcing rib network of the upper cover 20 is as follows: Figure 12 As shown, firstly, outer horizontal / vertical reinforcing ribs 37 are set close to the outer contour of the upper cover 20, and then inner horizontal / vertical reinforcing ribs 37 are set, avoiding the components of the upper cover 20. Specifically, the specific layout of the reinforcing rib network on the base plate 10 is as follows: while avoiding the components, three horizontal reinforcing ribs 36 and three vertical reinforcing ribs 36 are set, and the reinforcing ribs are basically evenly distributed.

[0058] The method of setting stiffeners is not limited to the settings in this example. Based on the results of mechanical simulation, the stiffeners can be adjusted. In this example, their cross-sectional shape is rectangular, but they can also be set to trapezoidal, semi-circular, or other shapes.

[0059] In some specific embodiments, a lug 102 is provided on the outer surface of the base plate 10. The lug 102 includes a connecting block and a fourth through hole opened on the connecting block. The entire electronic unit is fixed to the entire satellite body through the lug 102.

[0060] In some specific embodiments, a grounding stake 19 is provided on the outer side of the outer casing. The grounding stake 19 is used to connect to the whole satellite reference grounding stake 19 through a cable to achieve equipotential between the single unit casing and the whole satellite structure, and to ensure electromagnetic compatibility safety.

[0061] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A platform integrated electronic unit, characterized by The electronic single machine comprises an upper layer module and a lower layer module, the upper layer module comprises an upper cover (20), and the lower layer module comprises a bottom plate (10); The upper layer module and the lower layer module are fixedly connected in a flat plate stacking mode, and an inter-plate connector X27 for realizing electrical interconnection is arranged between the upper layer module and the lower layer module; The upper cover (20) is arranged opposite to the bottom plate (10) and is fixedly connected through a connecting piece, thereby forming an external shell of the electronic single machine; and the internal part of the external shell is provided with functional sub-modules.

2. The platform integrated electronic single machine according to claim 1, characterized in that: The functional sub-modules are arranged in multiple layers in the internal part of the external shell; the functional sub-modules comprise an integrated management sub-module, a GNSS sub-module and a measurement control communication and power supply sub-module; The integrated management sub-module is arranged on the upper layer and is located inside the upper cover (20); the GNSS sub-module and the measurement control communication and power supply sub-module are arranged side by side on the lower layer and are located on the bottom plate (10); The functional sub-modules each comprise a printed board, a front cover plate and a rear cover plate fixed to both sides of the printed board, and the printed board is provided with related components and electrical connectors.

3. The platform integrated electronic single machine according to claim 2, characterized in that: The measurement control communication and power supply sub-module comprises a power supply module (17) and a measurement control communication module, the power supply module (17) and the measurement control communication module are arranged on the printed board of the measurement control communication and power supply sub-module; and the power supply module (17) comprises a DC / DC assembly (171) and a filter assembly (172); The bottom surface of the bottom plate (10) opposite to the upper cover (20) is provided with a few-shaped cross-section structure, the middle part of the bottom surface of the bottom plate (10) is provided with an upper convex region (101), the power supply module (17) is installed below the upper convex region (101), the upper surface of the power supply module (17) is fixedly attached to the upper convex region (101), and the lower surface of the power supply module (17) is provided with a power supply cover plate (18).

4. The platform integrated electronic single machine according to claim 2, characterized in that: The inner side surface of the upper cover (20) and the bottom surface of the bottom plate (10) are each provided with a reinforcing rib network, the reinforcing rib network comprises a plurality of transverse reinforcing ribs (36) and a plurality of longitudinal reinforcing ribs (37), and the transverse reinforcing ribs (36) and the longitudinal reinforcing ribs (37) are uniformly arranged on the inner side surface of the upper cover (20) and the bottom plate (10).

5. The platform integrated electronic single machine according to claim 4, characterized in that: The reinforcing rib network and the upper cover (20) or the bottom plate (10) are integrally formed, and the reinforcing rib network and the components on the printed board are arranged away from each other; and the cross-sectional shape of the transverse reinforcing rib (36) and the longitudinal reinforcing rib (37) is one of a rectangle, a trapezoid or a semicircle.

6. The platform integrated electronic single machine according to claim 2, characterized in that: The integrated management sub-module comprises an integrated management printed board (23), an integrated management front cover plate (21) (11GNSS), and an integrated management rear cover plate (22); the integrated management front cover plate (21) and the integrated management rear cover plate (22) are respectively provided with a front end electrical connector L1 and a rear end electrical connector L2; One end of the front end electrical connector L1 and the rear end electrical connector L2 is respectively welded and fixed with the integrated management printed board (23), and the other end of the front end electrical connector L1 and the rear end electrical connector L2 is respectively bolted with the integrated management front cover plate (21) and the integrated management rear cover plate (22); The front end electrical connector L1 and the rear end electrical connector L2 are bent insertion printed board type connectors.

7. The platform integrated electronic single machine according to claim 2, wherein The GNSS sub-module comprises a GNSS printed board (13), a GNSS front cover plate (11), and a GNSS rear cover plate (12); the GNSS front cover plate (11) and the GNSS rear cover plate (12) are respectively provided with a front end electrical connector L3 and a rear end electrical connector L4; The measurement and control communication and power supply sub-module comprises a measurement and control communication and power supply printed board (16), a measurement and control communication and power supply front cover plate (14), and a measurement and control communication and power supply rear cover plate (15); the measurement and control communication and power supply front cover plate (14) and the measurement and control communication and power supply rear cover plate (15) are respectively provided with a front end electrical connector L5 and a rear end electrical connector L6.

8. The platform integrated electronic single machine according to claim 1, wherein The upper cover (20) and the bottom plate (10) are both provided with side walls, and a plurality of grooves (33) are arranged on the side walls of the upper cover (20) and the bottom plate (10), which are used as handles.

9. The platform integrated electronic single machine according to claim 1, wherein, The connecting piece comprises a first guide column (32) and a fixing screw (31); A plurality of first guide columns (32) are arranged on the bottom plate (10), which are used for positioning when the upper cover (20) and the bottom plate (10) are closed; A plurality of first through holes are arranged on the upper cover (20), and the upper cover (20) and the bottom plate (10) are fixedly connected through the first guide columns (32) and the fixing screws (31) passing through the through holes, and the first guide columns (32) are matched with the fixing screws (31).

10. The platform integrated electronic single machine according to claim 1, wherein The outer side of the outer shell is provided with a grounding stake (19), which is used for connecting the whole satellite benchmark grounding stake.

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