CN216752304U - Laser communication electric cabinet - Google Patents
Laser communication electric cabinet Download PDFInfo
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- CN216752304U CN216752304U CN202220348863.8U CN202220348863U CN216752304U CN 216752304 U CN216752304 U CN 216752304U CN 202220348863 U CN202220348863 U CN 202220348863U CN 216752304 U CN216752304 U CN 216752304U
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Abstract
The utility model relates to a laser communication electric cabinet, which comprises a plurality of independent modules; each independent module comprises a plate frame and a circuit board embedded in the plate frame; all the independent modules are stacked to form a food steamer type structure; in the food steamer type structure, two adjacent layers of plate frames are fixedly connected, and circuit boards in the two adjacent layers of plate frames are oppositely inserted through connectors between the plates to realize electrical connection between the plates. The utility model combines the modularized chassis with the box-type chassis, the circuit board and the plate frame are installed into a whole and form an independent module, and the modules are connected by the connectors between the boards, thereby avoiding the nesting of multiple layers of shells between the modules and further reducing the weight of the chassis.
Description
Technical Field
The utility model relates to a communication case, in particular to a laser communication electric cabinet.
Background
Aerospace electronics chassis often have a panel chassis, a modular chassis, a rack chassis, a box chassis, and a rack chassis. The plate-inserting type chassis has poor integral rigidity and reliability because the chassis shell is spliced in a plate mode. The cassette case is generally only suitable for simple circuit boards. The inner support of the bracket type case is a bearing part, the bracket type case is usually positioned in the middle of the case, and the periphery of the bracket type case is wrapped by thin plates, so that the maintainability is poor, and the bending resistance of the structure is poor. The modular chassis has good structural rigidity and reliability, the modules have integral replaceability, and the modular chassis has good maintainability, but the modular chassis has heavier weight due to the nesting of multiple layers of shells.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a laser communication electric cabinet combining a modularized case and a box type case, which avoids nesting of multiple layers of shells among modules, thereby reducing the weight of the case.
The technical scheme for solving the technical problems is as follows: a laser communication electric cabinet comprises a plurality of independent modules; each independent module comprises a plate frame and a circuit board embedded in the plate frame; all the independent modules are stacked to form a food steamer type structure; in the food steamer type structure, two adjacent layers of plate frames are fixedly connected, and circuit boards in the two adjacent layers of plate frames are oppositely inserted through connectors between the plates to realize electrical connection between the plates.
On the basis of the technical scheme, the utility model can be further improved as follows.
Further, the plurality of independent modules comprise a power supply independent module, a main control independent module and a modulation and demodulation independent module; the plate frame of the power supply independent module is a power supply plate frame, and the circuit board embedded in the plate frame of the power supply independent module is a power supply plate; the plate frame of the master control independent module is specifically a master control plate frame, and the circuit board embedded in the plate frame of the master control independent module is specifically a master control board; the plate frame of the modulation and demodulation independent module is a modulation and demodulation plate frame, and the circuit board embedded in the plate frame of the modulation and demodulation independent module is a modulation and demodulation board; the power plate frame embedded with the power plate, the main control plate frame embedded with the main control plate and the modulation and demodulation plate frame embedded with the modulation and demodulation plate are sequentially stacked to form a food steamer type structure; the power supply plate frame and the master control plate frame and the modulation and demodulation plate frame are fixedly connected; the power panel and the main control panel and the modulation and demodulation panel are electrically connected with each other through connectors between the panels in an opposite insertion mode and are fixedly connected with each other through bolts.
Further, the plurality of independent modules further comprise a master control backup independent module, a plate frame of the master control backup independent module is specifically a master control backup plate frame, and a circuit board embedded in the plate frame of the master control backup independent module is specifically a master control backup plate; the power plate frame embedded with the power plate, the main control plate frame embedded with the main control plate, the modulation and demodulation plate frame embedded with the modulation and demodulation plate and the main control backup plate frame embedded with the main control backup plate are sequentially stacked to form a food steamer type structure; the power supply plate frame and the master control plate frame, the master control plate frame and the modulation and demodulation plate frame and the master control backup plate frame are fixedly connected; the power panel and the main control panel, the main control panel and the modulation and demodulation panel and the main control backup panel are electrically connected through connectors between the panels, and are fixedly connected through bolts.
Furthermore, an upper cover plate is arranged on the main control backup plate frame in a matched mode, and the upper cover plate is detachably fixed to the top of the main control backup plate frame.
Furthermore, the main control board or/and the main control backup board are provided with debugging interfaces, the debugging interfaces on the main control board are electrically connected with the main control board and are inserted and embedded in the frame surface of the main control board frame, or/and the debugging interfaces on the main control backup board are electrically connected with the main control backup board and are inserted and embedded in the frame surface of the main control backup board frame; a side cover plate is arranged on the debugging interface;
or/and a window for plugging and pulling out and maintaining the optical fiber joint is arranged on the modulation and demodulation plate frame.
Further, the power plate frame is specifically a plate frame with a bottom plate; the power supply board is integrated with a power supply module, and the back of the power supply module is adhered to the bottom plate of the power supply board frame through a flexible heat-conducting insulating pad.
Further, the main control plate frame is a plate frame with the inner surface subjected to aluminum natural color conductive oxidation treatment;
the mSATA disk is integrated on the main control board, supported and fixed on the main control board through a polytetrafluoroethylene cushion column by screws, the lower surface of the mSATA disk is thermally conductive and insulated and is in compression connection with copper-clad on the main control board by screws, and the upper surface of the mSATA disk is thermally conductive and insulated and is in contact with the frame surface of the main control board frame.
Furthermore, the modulation and demodulation board comprises an upper modulation and demodulation board and a lower modulation and demodulation board which are stacked and arranged at intervals, and a middle layer between the upper modulation and demodulation board and the lower modulation and demodulation board is used for providing a mechanical structure layer for supporting and radiating devices integrated on the modulation and demodulation board.
Furthermore, a seam allowance is arranged between two adjacent layers of the plate frames, the plate frames are overlapped through the seam allowance and are connected in a compression mode through screws; and heat-conducting silicone grease is coated between step contact surfaces of the seam allowances between two adjacent layers of the plate frames.
Further, the plate frame is a plate frame with the outer surface subjected to blackening treatment.
The utility model has the beneficial effects that: in the laser communication electric control box, the modularized case and the box-type case are combined, the circuit board and the plate frame are installed into a whole to form an independent module, and the modules are connected through the connectors between the plates, so that the nesting of multiple layers of shells among the modules is avoided, and the weight of the case is reduced.
Drawings
FIG. 1 is a schematic diagram of a split type structure of a laser communication electric cabinet according to the present invention;
FIG. 2 is a schematic perspective view of a laser communication electric cabinet according to the present invention;
FIG. 3 is a schematic front view of a laser communication electric cabinet according to the present invention;
FIG. 4 is a schematic external view of a power panel in a laser communication electrical cabinet according to the present invention;
fig. 5 is an external view of a main control board in a laser communication electronic control box according to the present invention;
FIG. 6 is a schematic diagram of an external view of a modulation and demodulation board in a laser communication electronic control box according to the present invention;
FIG. 7 is a cross-sectional view of a modulation and demodulation board in a laser communication electronic control box according to the present invention;
FIG. 8 is a schematic view of the structure of the slit.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the power supply board frame comprises a power supply board frame 2, a power supply board 3, a master control board frame 4, a master control board 5, a modem board frame 6, a modem board 7, a master control backup board frame 8, a master control backup board 9, an upper cover plate 10, a power supply board interface 11, a master control board interface 12, a debugging interface 13, a maintenance window 14, a window 15, a modem board interface 16, a master control backup board interface 17 and a spigot.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.
A laser communication electric cabinet comprises a plurality of independent modules; each independent module comprises a plate frame and a circuit board embedded in the plate frame; all the independent modules are stacked to form a food steamer type structure; in the food steamer type structure, two adjacent layers of plate frames are fixedly connected, and circuit boards in the two adjacent layers of plate frames are oppositely inserted through connectors between the plates to realize electrical connection between the plates.
Specifically, as shown in fig. 1: the plurality of independent modules comprise a power supply independent module, a main control independent module and a modulation and demodulation independent module; the plate frame of the power supply independent module is specifically a power supply plate frame 1, and the circuit board embedded in the plate frame of the power supply independent module is specifically a power supply plate 2; the plate frame of the master control independent module is specifically a master control plate frame 3, and the circuit board embedded in the plate frame of the master control independent module is specifically a master control board 4; the plate frame of the modulation and demodulation independent module is specifically a modulation and demodulation plate frame 5, and the circuit board embedded in the plate frame of the modulation and demodulation independent module is specifically a modulation and demodulation plate 6; the power plate frame 1 embedded with the power plate 2, the main control plate frame 3 embedded with the main control plate 4 and the modulation and demodulation plate frame 5 embedded with the modulation and demodulation plate 6 are sequentially stacked to form a food steamer type structure; the power supply plate frame 1 and the master control plate frame 3 and the modulation and demodulation plate frame 5 are fixedly connected; the power panel 2 and the main control panel 4 and the modulation and demodulation panel 6 are electrically connected with each other through connectors between the panels, and are fixedly connected with each other through bolts.
Further, as shown in fig. 1, the plurality of independent modules further include a master backup independent module, a board frame of the master backup independent module is specifically a master backup board frame 7, and a circuit board embedded in the board frame of the master backup independent module is specifically a master backup board 8; the power plate frame 1 embedded with the power plate 2, the main control plate frame 3 embedded with the main control plate 4, the modem plate frame 5 embedded with the modem plate 6 and the main control backup plate frame 7 embedded with the main control backup plate 8 are sequentially stacked to form a food steamer type structure; the power supply plate frame 1 and the master control plate frame 3, the master control plate frame 3 and the modem plate frame 5, and the modem plate frame 5 and the master control backup plate frame 7 are all fixedly connected; the power panel 2 and the main control panel 4, the main control panel 4 and the modulation and demodulation panel 6, and the modulation and demodulation panel 6 and the main control backup panel 8 are electrically connected through connectors between boards by means of plug-in connection, and are fixedly connected through bolts.
Furthermore, an upper cover plate 9 is arranged on the main control backup plate frame 7, and the upper cover plate 9 is detachably fixed on the top of the main control backup plate frame 7.
The overall structure of the laser communication electric cabinet consisting of the power supply independent module, the main control independent module, the modulation and demodulation independent module and the main control backup independent module is shown in fig. 2, and the front view of the laser communication electric cabinet is shown in fig. 3.
In this particular embodiment: the power supply plate frame 1 is a plate frame with a bottom plate; the power panel 2 is integrated with a power module, and the back of the power module is adhered to the bottom plate of the power panel frame 1 through a flexible heat-conducting insulating pad.
Specifically, the shape of the power panel 2 is as shown in fig. 4, and 3 5V power modules, 2 28V power modules, 1 filter and 2 relays are specifically integrated on the power panel; wherein, 3 5V power module, 2 28V power module, 1 wave filter and 2 relays refer to the circuit connection structural connection that predetermines, constitute for the circuit that laser communication electric cabinet complete machine during operation provided the power. The power supply module can generate a large amount of heat during working, and the heat needs to be transferred to an instrument board of the satellite platform through the power supply board frame 1; therefore, when the power panel is designed, the back surface of the power module is directly attached to the bottom plate of the power panel frame 1, and a flexible heat-conducting insulating pad is adhered between contact surfaces. This design can still provide flexible buffering for the power module back and the bottom plate of power sheet frame 1 when providing effectual heat dissipation route for power module, improves the solder joint reliability between power module and power strip 2. The layout installation of similar filters and relays also adopts the design measures of similar power supplies.
In addition: the power panel is further provided with a power panel interface 10, and the power panel interface 10 is electrically connected with the power panel 2 and penetrates through the frame surface of the power panel frame 1.
In this particular embodiment: the appearance of the main control board 4 is as shown in fig. 5, the layout of devices needing heat dissipation of the main control board 4 is relatively dispersed, and the height difference of the devices is relatively large, so that the heat dissipation step surface of the main control board frame 3 is more, 4 mSATA disks are integrated on the main control board 4, the mSATA disks are commercial devices and are supported on the main control board 4 through polytetrafluoroethylene cushion columns and screws, the lower surfaces of the mSATA disks are heat-conducting and insulating and are pressed with copper-clad of the main control board through screws to realize conduction heat dissipation, and the upper surfaces of the mSATA disks are heat-conducting and insulating and are in contact with the frame surface (heat dissipation surface) of the main control board frame 3 to realize conduction heat dissipation; specifically, a heat conduction insulating pad is designed between the lower surface of the mSATA disk and the main control board, and a heat conduction insulating pad is also arranged between the upper surface of the mSATA disk and the main control board frame. The inner surface of the main control plate frame 3 is subjected to aluminum natural color conductive oxidation treatment.
In addition: the side of the main control board 4 is provided with a main control board interface 11, and the main control board interface 11 is electrically connected with the main control board 4 and penetrates through the frame surface of the main control board frame 3. The side of the main control board 4 is also provided with a detachable connector, and the detachable connector is convenient for ground single board testing and complete machine testing. The main control board 4 is provided with a debugging interface 12, and the debugging interface 12 on the main control board 4 is electrically connected with the main control board 4 and is inserted and embedded in the frame surface of the main control board frame 3; and a side cover plate is arranged on the debugging interface 12 on the main control board 4.
In this particular embodiment: the outer shape of the modem board 6 is shown in fig. 6 and 7. The modem board 6 has more internal devices, and some of the devices have larger volume and weight, and more internal optical fibers. Therefore, the modulation and demodulation board 6 is a layered structure, the modulation and demodulation board 6 comprises an upper modulation and demodulation board and a lower modulation and demodulation board which are stacked and arranged at intervals, and a middle layer between the upper modulation and demodulation board and the lower modulation and demodulation board is a mechanical structure layer for supporting and radiating devices integrated on the modulation and demodulation board; the mechanical structure layer mainly provides support and heat dissipation for large components. The lower layer of the modulation and demodulation board 6 is provided with 2 optical fiber flanges, 1 carrier board and 2 optical switches.
The side of the modulation and demodulation plate 6 is provided with 2 maintenance windows 13 for the plugging, cleaning and maintenance operation of the optical fiber head. Correspondingly, a window 14 for plugging and pulling out and maintaining the optical fiber connector is formed in the modem plate frame 5. Specifically, as shown in fig. 2, 2 windows 14 are respectively opened on the rear right side and the rear side of the modem plate frame 5, and the windows 14 are used for plugging and unplugging the optical fiber connector and cleaning the optical fiber connector during a ground test. Through the design of the plate frame-level maintenance window, the times of complete machine disassembly and assembly caused by equipment faults in the ground test process of the complete machine can be effectively reduced, the reliability and maintainability of the complete machine can be effectively improved, and the fault removal speed and maintenance efficiency in the test process of the complete machine can be effectively improved.
The modem board 6 is provided with a modem board interface 15, and the modem board interface 15 is electrically connected with the modem board 6 and is inserted into the frame surface of the modem board frame 5.
In this particular embodiment: the main control backup board 8 is provided with a main control backup board interface 16, and the main control backup board interface 16 is electrically connected with the main control backup board 8 and is inserted and embedded in the frame surface of the main control backup board frame 7.
In addition, the master control backup board 8 is also provided with a debugging interface 12, and the debugging interface 12 on the master control backup board 8 is electrically connected with the master control backup board 8 and is inserted and embedded in the frame surface of the master control backup board frame 7; and a side cover plate is arranged on the debugging interface 12 on the main control backup board 8.
The main control board 4 and the debugging interface 12 on the main control backup board 8 can realize ground debugging and program uploading updating without disassembling the laser communication electric control box, and after the laser communication electric control box finishes ground debugging and complete machine testing, the debugging interface can be plugged through the side cover plate, so that the requirement of a satellite platform is met.
In this particular embodiment: a seam allowance 17 shown in fig. 8 is arranged between two adjacent layers of the plate frames, and the two adjacent layers of the plate frames are overlapped through the seam allowance 17 and are connected through screws in a compression manner; and heat-conducting silicone grease is coated between step contact surfaces of the seam allowance 17 between two adjacent layers of plate frames. The utility model designs seam allowance overlapping among all plate frames of the laser communication electric cabinet, and the whole cabinet structure provides good electromagnetic shielding measures for the whole machine. The heat conduction between the plate frames is realized through the contact of large step surfaces of the seam allowances between the plate frames, the area of the contact surface is large, meanwhile, heat-conducting silicone grease is coated between the step contact surfaces of the seam allowances, and the plate frames are tightly pressed by 6M 6 screws. The contact thermal resistance between plates is effectively reduced by increasing the contact area, the heat conductivity coefficient between contact surfaces and the contact pretightening force of the plate frame, so that the heat between the plate frames is conducted to the instrument board of the satellite platform.
In this particular embodiment: the plate frame is specifically a plate frame with the outer surface subjected to blackening treatment. The outer surface of the laser communication electric cabinet is subjected to blackening treatment, the laser communication electric cabinet has high thermal radiance, and when a cabinet works in a rail, heat can be dissipated in a heat conduction and heat radiation mode at the same time.
The laser communication electric cabinet can supply power for communication, modulates and demodulates optical signals, and is applied to inter-satellite or inter-satellite-ground laser communication.
The utility model combines the modularized case and the box type case, and the circuit board and the plate frame are installed into a whole to form an independent module. Therefore, the following effects are provided:
firstly, the independent modules are connected through the connectors and the bolts between the plates, so that the nesting of multiple layers of shells between the independent modules is avoided, and the weight of the chassis is reduced.
And secondly, opening design is carried out on the side wall of the laser communication electric cabinet, so that convenient maintenance and test in the whole machine test process can be realized.
And thirdly, the power supply module and the power device are directly installed on the metal bottom plate of the power supply plate frame, so that a good heat dissipation environment can be provided for the power device.
And fourthly, through the design of a mechanical seam allowance between the plate frames, the connector between the plates is provided for opposite insertion guiding, and meanwhile, the whole laser communication electric cabinet also has a good electromagnetic shielding effect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A laser communication electric cabinet which is characterized in that: comprises a plurality of independent modules; each independent module comprises a plate frame and a circuit board embedded in the plate frame; all the independent modules are stacked to form a food steamer type structure; in the food steamer type structure, two adjacent layers of plate frames are fixedly connected, and circuit boards in the two adjacent layers of plate frames are oppositely inserted through connectors between the plates to realize electrical connection between the plates.
2. The laser communication electric cabinet according to claim 1, characterized in that: the plurality of independent modules comprise a power supply independent module, a main control independent module and a modulation and demodulation independent module; the plate frame of the power supply independent module is a power supply plate frame, and the circuit board embedded in the plate frame of the power supply independent module is a power supply plate; the plate frame of the master control independent module is specifically a master control plate frame, and the circuit board embedded in the plate frame of the master control independent module is specifically a master control board; the plate frame of the modulation and demodulation independent module is a modulation and demodulation plate frame, and the circuit board embedded in the plate frame of the modulation and demodulation independent module is a modulation and demodulation board; the power plate frame embedded with the power plate, the main control plate frame embedded with the main control plate and the modulation and demodulation plate frame embedded with the modulation and demodulation plate are sequentially stacked to form a food-steamer type structure; the power supply plate frame and the master control plate frame and the modulation and demodulation plate frame are fixedly connected; the power panel and the main control panel and the modulation and demodulation panel are electrically connected with each other through connectors between the panels in an opposite insertion mode and are fixedly connected with each other through bolts.
3. The laser communication electric cabinet according to claim 2, characterized in that: the independent modules also comprise a master control backup independent module, a plate frame of the master control backup independent module is a master control backup plate frame, and a circuit board embedded in the plate frame of the master control backup independent module is a master control backup plate; the power plate frame embedded with the power plate, the main control plate frame embedded with the main control plate, the modulation and demodulation plate frame embedded with the modulation and demodulation plate and the main control backup plate frame embedded with the main control backup plate are sequentially stacked to form a food steamer type structure; the power supply plate frame and the master control plate frame, the master control plate frame and the modulation and demodulation plate frame and the master control backup plate frame are fixedly connected; the power panel and the main control panel, the main control panel and the modulation and demodulation panel and the main control backup panel are electrically connected through connectors between the panels, and are fixedly connected through bolts.
4. The laser communication electric cabinet according to claim 3, characterized in that: an upper cover plate is arranged on the main control backup plate frame in a matched mode, and the upper cover plate is detachably fixed to the top of the main control backup plate frame.
5. The laser communication electric cabinet of claim 3, characterized in that: the main control board or/and the main control backup board are/is provided with debugging interfaces, the debugging interfaces on the main control board are electrically connected with the main control board and are inserted and embedded in the frame surface of the main control board frame, or/and the debugging interfaces on the main control backup board are electrically connected with the main control backup board and are inserted and embedded in the frame surface of the main control backup board frame; a side cover plate is arranged on the debugging interface;
or/and a window for plugging and pulling out and maintaining the optical fiber joint is arranged on the modulation and demodulation plate frame.
6. The laser communication electric cabinet according to any one of claims 2 to 5, characterized in that: the power supply plate frame is a plate frame with a bottom plate; the power supply board is integrated with a power supply module, and the back of the power supply module is adhered to the bottom plate of the power supply board frame through a flexible heat-conducting insulating pad.
7. The laser communication electric cabinet according to any one of claims 2 to 5, characterized in that: the main control plate frame is a plate frame with the inner surface subjected to aluminum natural color conductive oxidation treatment;
the mSATA disk is integrated on the main control board, supported and fixed on the main control board through a polytetrafluoroethylene cushion column by screws, the lower surface of the mSATA disk is thermally conductive and insulated and is in compression connection with copper-clad on the main control board by screws, and the upper surface of the mSATA disk is thermally conductive and insulated and is in contact with the frame surface of the main control board frame.
8. The laser communication electric cabinet according to any one of claims 2 to 5, characterized in that: the modulation and demodulation board comprises an upper modulation and demodulation board and a lower modulation and demodulation board which are stacked and arranged at intervals, and a middle layer between the upper modulation and demodulation board and the lower modulation and demodulation board is used for providing a mechanical structure layer for supporting and radiating integrated devices on the modulation and demodulation board.
9. The laser communication electric cabinet according to any one of claims 1 to 5, characterized in that: a seam allowance is arranged between two adjacent layers of the plate frames, is lapped through the seam allowance and is tightly pressed and connected through a screw; and heat-conducting silicone grease is coated between step contact surfaces of the seam allowances between two adjacent layers of the plate frames.
10. The laser communication electric cabinet according to any one of claims 1 to 5, characterized in that: the plate frame is specifically a plate frame with the outer surface subjected to blackening treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220348863.8U CN216752304U (en) | 2022-02-21 | 2022-02-21 | Laser communication electric cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220348863.8U CN216752304U (en) | 2022-02-21 | 2022-02-21 | Laser communication electric cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216752304U true CN216752304U (en) | 2022-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220348863.8U Active CN216752304U (en) | 2022-02-21 | 2022-02-21 | Laser communication electric cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216752304U (en) |
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- 2022-02-21 CN CN202220348863.8U patent/CN216752304U/en active Active
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