Stacked satellite rigid-flex board structure and installation method

Abstract

The invention provides a stacked satellite rigid-flex board structure and an installation method. The rigid-flex board structure comprises a rigid-flex board assembly A, a rigid-flex board assembly B, a connecting assembly, a supporting sleeve and a support. The rigid-flexible combined board comprises a connector, a rigid printed board and a flexible printed board. According to the invention, the rigid-flex printed board structure is adopted to replace the traditional cable connection, and the structural layout of the rigid-flex printed board is utilized to carry out customized design according to the space requirement in the satellite, so that the interior of the satellite cabin is more beautiful and concise, the space in the cabin is saved, and the satellite assembly efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of rigid-flexible printed circuit boards, and in particular relates to a stacked satellite rigid-flexible circuit board structure and an installation method. Background Art

[0002] With the rapid development of commercial satellites, small and light stacked satellites have become the mainstream trend of future development. Generally, the single-machine equipment of stacked satellites is distributed on the top and bottom plates of the satellite structure. During the installation process, the top and bottom plate equipment are installed separately, and finally the top and bottom plates are combined. However, it is necessary to ensure the normal transmission of equipment signals between the top and bottom plates of the satellite and to ensure normal heat dissipation between the single-machine equipment and cables. The use of traditional cable design will result in too many cables being connected during the combination process, and the signal transmission cables between the devices are complicated, which in turn leads to problems such as heavy weight of satellite cables, large space occupation, poor heat dissipation, unsightly appearance, and cumbersome and difficult installation for operators.

[0003] The patent document with the announcement number CN117117350A discloses a highly integrated cable-free battery system suitable for small satellite power supply, including: a battery management system composed of a CPU system and a battery management chip, and a battery pack; the battery management system and related circuit devices are integrated in a rigid-flexible board, the rigid-flexible board includes a PCB substrate and a flexible board, the battery management system is connected to the satellite service computer through the CAN bus, the battery pack is placed in an aluminum frame, the battery is interconnected by nickel strips, the circuit device connection adopts a printed circuit board routing design, the rigid-flexible board covers the aluminum frame, the signal and power are output through the J30J and HRM connectors, and the PCB substrates are electrically connected through the flexible board. The technical content of the power supply system designed in this patent does not disclose the content of signal transmission and structural layout.

[0004] The patent document with the announcement number CN103687290A discloses a rigid-flexible board and a signal transmission line wiring method and device thereof, the method comprising the steps of: determining the line width and line spacing of the differential signal transmission line in the flexible section or / and the line width of the single-ended signal transmission line in the flexible section according to the thickness of the adjacent dielectric layer of the flexible section of the signal layer on the flexible substrate; determining the line width and line spacing of the differential signal transmission line in the rigid-flexible section or / and the line width of the single-ended signal transmission line in the rigid-flexible section according to the thickness of the adjacent dielectric layer of the rigid-flexible section of the signal layer on the flexible substrate; routing the differential signal transmission line according to the determined line width and line spacing of the differential signal transmission line in the flexible section or the rigid-flexible section, or / and routing the single-ended signal transmission line according to the line width of the single-ended signal transmission line in the flexible section or the rigid-flexible section. However, the patent does not disclose the technical content of fixing the rigid-flexible board assembly on the installation platform, nor does it disclose the technical content of improving the heat dissipation effect and adapting the space occupied by the equipment on the installation platform. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a stacked satellite rigid-flexible board structure and an installation method.

[0006] The present invention is achieved through the following technical solutions.

[0007] The present invention provides a stacked satellite rigid-flexible board structure, comprising a rigid-flexible board component A, a rigid-flexible board component B, a connecting component, a supporting sleeve and a bracket. The rigid-flexible board component A and the rigid-flexible board component B are connected via the connecting component, and the rigid-flexible board component A and the rigid-flexible board component B are connected to the satellite body via the supporting sleeve and the bracket.

[0008] Preferably, the rigid-flex board assembly A includes a rigid-flex board I, a rigid-flex board II, a rigid-flex board III, a rigid-flex board IV, a rigid-flex board V, a rigid-flex board VI, a rigid-flex board IX, a rigid-flex board X, a rigid-flex board XI, a rigid-flex board XII, a rigid-flex board XVIII, a rigid-flex board XXVI, a rigid-flex board XXVII, and a rigid-flex board XXXI. The rigid-flex boards included in the rigid-flex board assembly A can be bent.

[0009] The rigid-flex board I is connected to the rigid-flex board III through the rigid-flex board X, the rigid-flex board III is respectively connected to the rigid-flex board V, the rigid-flex board IX and the rigid-flex board XXVI, the rigid-flex board IV is connected to the rigid-flex board III through the rigid-flex board XXVI, the rigid-flex board IV is respectively connected to the rigid-flex board VI and the rigid-flex board XII, one end of the rigid-flex board V is connected to the rigid-flex board II, the rigid-flex board VI is connected to the rigid-flex board XXVII, one end of the rigid-flex board XII is connected to the rigid-flex board VI, the other end of the rigid-flex board XII is connected to the rigid-flex board XXXI, and the rigid-flex board XXVI is connected to the rigid-flex board XVIII.

[0010] Preferably, the rigid-flex board assembly B comprises a rigid-flex board VII, a rigid-flex board VIII, a rigid-flex board XIII, a rigid-flex board XV, a rigid-flex board XVI, a rigid-flex board XVII, a rigid-flex board XIX, a rigid-flex board XX, a rigid-flex board XXI, a rigid-flex board XXII, a rigid-flex board XXIII, a rigid-flex board XXIV, a rigid-flex board XXV, and a rigid-flex board XXX. The rigid-flex boards included in the rigid-flex board assembly B can be bent.

[0011] The rigid-flex board VII is connected to the rigid-flex board XX, the rigid-flex board XIII is connected to the rigid-flex board XIX through the rigid-flex board VII, the rigid-flex board XIX is connected to the rigid-flex board XXV, the rigid-flex board XX is respectively connected to the rigid-flex board XXI and the rigid-flex board XXII, the rigid-flex board XXI is connected to one end of the rigid-flex board XVI through the rigid-flex board XVII, the other end of the rigid-flex board XVI is connected to the rigid-flex board XV, the rigid-flex board XXII is respectively connected to the rigid-flex board VIII, the rigid-flex board XXIII and the rigid-flex board XXX, and the rigid-flex board VIII is connected to the rigid-flex board XXIV.

[0012] Preferably, the rigid-flexible board comprises a rigid printed board and a flexible printed board, a connector is arranged on the rigid printed board, the rigid printed board and the flexible printed board are connected, and mounting holes are arranged on the rigid printed board, and the mounting holes are metallized holes.

[0013] Preferably, the connection component includes a rigid-flex board XIV, a rigid-flex board XXVIII and a rigid-flex board XXIX, and the rigid-flex board component A is connected to the rigid-flex board component B through the rigid-flex board XIV, the rigid-flex board XXVIII and the rigid-flex board XXIX.

[0014] Preferably, a transfer connector is provided on one surface of the rigid-flexible board XX, a signal transmission connector is provided on the other surface of the rigid-flexible board XX, and an avoidance hole is provided on the rigid-flexible board XX.

[0015] Preferably, an adapter connector plug and an adapter connector socket are provided on the rigid-flexible board IV, and the adapter connector plug is connected to the rigid-flexible board IV via the adapter connector socket.

[0016] A method for installing a stacked satellite rigid-flex board structure comprises the following steps:

[0017] S1: Check the code of each connector and determine the installation position of each connector on the satellite.

[0018] S2: Pre-assemble the connector. First, pre-assemble the rigid printed circuit board that needs to be equipped with the support sleeve, and set the corresponding mounting screws. The support sleeve is installed between the corresponding rigid-flexible board and the satellite structure. The support sleeve is pre-fixed on the satellite structure. The screws are not fully tightened and the thread locking agent is not applied.

[0019] S3: Fix the bracket to the satellite structure with screws, and then assemble the rigid-flex board assembly A and the rigid-flex board assembly B.

[0020] S4: The rigid-flex board assembly A and the rigid-flex board assembly B can be assembled.

[0021] Preferably, in step S2, the installation order of the rigid-flex board assembly A is: rigid-flex board II, rigid-flex board V, rigid-flex board IX, rigid-flex board III, rigid-flex board I, rigid-flex board X, rigid-flex board IV, rigid-flex board XVIII, rigid-flex board XXVI, rigid-flex board XI, rigid-flex board VI, rigid-flex board XXVII, rigid-flex board XII, rigid-flex board XXXI, rigid-flex board XIV, rigid-flex board XXVIII and rigid-flex board XXIX;

[0022] The installation order of the rigid-flex board assembly B is: rigid-flex board XV, rigid-flex board XVI, rigid-flex board XVII, rigid-flex board XX, rigid-flex board XXI, rigid-flex board XXII, rigid-flex board XXX, rigid-flex board XXIII, rigid-flex board VIII, rigid-flex board XXIV, rigid-flex board XXV, rigid-flex board VII, rigid-flex board XIII and rigid-flex board XIX.

[0023] Preferably, in step S3, when assembling the rigid-flex board assembly A and the rigid-flex board assembly B, remove the mounting screws on the corresponding rigid-flex board, apply thread locking agent to the 2 / 3 length area of ​​the thread of the mounting screw, and use a torque screwdriver to determine the tightening torque value according to the screw specifications, screw materials, materials of the tightening parts, etc.; the tightening torque of M2.5 screws is 40-50N·cm, the inspection torque is 40-50N·cm, the tightening torque of M3 screws is 70-90N·cm, and the inspection torque is 60-80N·cm. Tighten and inspect the left and right sides alternately to avoid warping and deformation of the rigid printed circuit board;

[0024] In the step S4, when the rigid-flex board assembly A and the rigid-flex board assembly B are assembled, the rigid-flex board assembly A is lifted, and the rigid-flex board assembly A and the rigid-flex board assembly B are connected through the rigid-flex board XIV, the rigid-flex board XXVIII, and the rigid-flex board XXIX, and then the flexible printed board is straightened to prevent the flexible printed board from being squeezed when the satellite is assembled.

[0025] The beneficial effects of the present invention are:

[0026] The present invention adopts a rigid-flexible printed circuit board structure to replace the complicated traditional cable connection. The rigid-flexible board can be used for three-dimensional spatial structure layout, and customized design can be performed according to the space requirements inside the satellite, making the satellite cabin more beautiful and tidy, saving cabin space, increasing heat dissipation space, and reducing the weight of the entire satellite cable network; at the same time, the modular rigid-flexible board is produced in a fully automated manner, which improves the reliability and automation level of the product compared to the traditional manual production of cables. The modular rigid-flexible board design also improves the efficiency and correctness of satellite assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 It is a structural schematic diagram of a rigid-flex board assembly A of the present invention;

[0029] Figure 3 It is a structural schematic diagram of a rigid-flex board assembly B of the present invention;

[0030] Figure 4 is a schematic diagram of the structure of the connection assembly of the present invention;

[0031] Figure 5 It is a schematic diagram of the structure of the rigid-flex board II of the present invention;

[0032] Figure 6 It is a direct link relationship diagram among the connector, the rigid printed circuit board and the flexible printed circuit board of the present invention;

[0033] Figure 7 It is an enlarged schematic diagram of the mounting hole of the rigid-flex board II of the present invention;

[0034] Figure 8 It is a schematic diagram showing the model of the rigid-flex board and the connector code of the present invention;

[0035] Fig. 9 It is a schematic diagram of the structure of the rigid-flex board IV of the present invention;

[0036] Fig.10 It is a front view of the rigid-flex board XX of the present invention;

[0037] Fig.11 It is a back view of the rigid-flex board XX of the present invention;

[0038] Fig.12 It is a schematic diagram of the single-machine wiring of the flexible printed circuit board path bonding of the rigid-flexible board XX of the present invention;

[0039] Fig.13 This is a schematic diagram of the present invention using a bracket to lift the rigid-flex board away from the single-unit structure on the satellite;

[0040] Fig.14 This is a schematic diagram of the supporting sleeve of the present invention lifting the rigid-flex board away from the on-satellite structure;

[0041] In the figure: 1-rigid-flex board I, 2-rigid-flex board II, 3-rigid-flex board III, 4-rigid-flex board IV, 5-rigid-flex board V, 6-rigid-flex board VI, 7-rigid-flex board VII, 8-rigid-flex board VIII, 9-rigid-flex board IX, 10-rigid-flex board X, 11-rigid-flex board XI, 12-rigid-flex board XII, 13-rigid-flex board XIII, 14-rigid-flex board XIV, 15-rigid-flex board XV, 16-rigid-flex board XVI, 17-rigid-flex board XVII, 18-rigid-flex board XVIII, 19-rigid-flex board XIX, 20-rigid-flex board XX, 21-rigid-flex board X XI, 22-rigid-flex board XXII, 23-rigid-flex board XXIII, 24-rigid-flex board XXIV, 25-rigid-flex board XXV, 26-rigid-flex board XXVI, 27-rigid-flex board XXVII, 28-combination board XXVIII, 29-combination board XXIX, 30-rigid-flex board XXX, 31-rigid-flex board XXXI, 32-connector, 33-rigid printed board, 331-mounting hole, 34-flexible printed board, 35-adapter connector plug, 36-adapter connector socket, 37-adapter connector, 38-signal transmission connector, 39-avoidance hole, 40-single-machine equipment, 41-support sleeve, 42-bracket. DETAILED DESCRIPTION

[0042] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0043] Example:

[0044] like Figures 1 to 14 As shown, a stacked satellite rigid-flex board structure includes a rigid-flex board assembly A, a rigid-flex board assembly B, a connecting assembly, a support sleeve 41 and a bracket 42. The rigid-flex board assembly A and the rigid-flex board assembly B are connected by the connecting assembly, and the rigid-flex board assembly A and the rigid-flex board assembly B are connected to the satellite body through the support sleeve 41 and the bracket 42. The rigid-flex board assembly A, the rigid-flex board assembly B, and all the rigid-flex boards in the connecting assembly are used for the transmission of electrical signals between all the devices on the entire satellite, and are the carriers for transmitting control signals and power signals between the devices on the satellite. The rigid-flex board assembly A is the top rigid-flex board, and the rigid-flex board assembly B is the bottom rigid-flex board. The shape, size, and quantity, position, and size of the rigid-flex boards included in the rigid-flex board assembly A, the rigid-flex board assembly B, and the connecting assembly can be designed according to actual conditions.

[0045] The rigid-flex board assembly A and the rigid-flex board assembly B are both installed on the satellite structure and are raised by 6.5mm through the support sleeve 41 to avoid direct contact with the satellite body structure. The mounting screws pass through the rigid printed board 33 and the support sleeve 41 to be fixed on the satellite body structure. The support sleeve 41 penetrates the rigid printed board 33 for connection, and also increases the heat dissipation space inside the satellite. Due to the limited space inside the satellite body structure, the rigid-flex board cannot avoid the position of the on-board stand-alone device 40 during the wiring process. The bracket 42 is designed and the advantage of the bendability of the flexible printed board 34 is utilized to raise the corresponding rigid-flex board to avoid the on-board stand-alone device 40, and also increase the heat dissipation space inside the satellite body.

[0046] The rigid-flex board assembly A includes a rigid-flex board I1, a rigid-flex board II2, a rigid-flex board III3, a rigid-flex board IV4, a rigid-flex board V5, a rigid-flex board VI6, a rigid-flex board IX9, a rigid-flex board X10, a rigid-flex board XI11, a rigid-flex board XII12, a rigid-flex board XVIII18, a rigid-flex board XXVI26, a rigid-flex board XXVII27, and a rigid-flex board XXXI31. The rigid-flex boards included in the rigid-flex board assembly A can be bent.

[0047] The rigid-flex board I1 is connected to the rigid-flex board III3 through the rigid-flex board X10, and the rigid-flex board III3 is respectively connected to the rigid-flex board V5, the rigid-flex board IX9 and the rigid-flex board XXVI26, the rigid-flex board IV4 is connected to the rigid-flex board III3 through the rigid-flex board XXVI26, the rigid-flex board IV4 is respectively connected to the rigid-flex board VI6 and the rigid-flex board XII12, one end of the rigid-flex board V5 is connected to the rigid-flex board II2, the rigid-flex board VI6 is connected to the rigid-flex board XXVII27, one end of the rigid-flex board XII12 is connected to the rigid-flex board VI6, the other end of the rigid-flex board XII12 is connected to the rigid-flex board XXXI31, and the rigid-flex board XXVI26 is connected to the rigid-flex board XVIII18.

[0048] The rigid-flex board assembly B comprises a rigid-flex board VII7, a rigid-flex board VIII8, a rigid-flex board XIII13, a rigid-flex board XV15, a rigid-flex board XVI16, a rigid-flex board XVII17, a rigid-flex board XIX19, a rigid-flex board XX20, a rigid-flex board XXI21, a rigid-flex board XXII22, a rigid-flex board XXIII23, a rigid-flex board XXIV24, a rigid-flex board XXV25, and a rigid-flex board XXX30. The rigid-flex boards included in the rigid-flex board assembly B can be bent.

[0049] The rigid-flex board VII7 is connected to the rigid-flex board XX20, the rigid-flex board XIII13 is connected to the rigid-flex board XIX19 through the rigid-flex board VII7, the rigid-flex board XIX19 is connected to the rigid-flex board XXV25, the rigid-flex board XX20 is respectively connected to the rigid-flex board XXI21 and the rigid-flex board XXII22, the rigid-flex board XXI21 is connected to one end of the rigid-flex board XVI16 through the rigid-flex board XVII17, the other end of the rigid-flex board XVI16 is connected to the rigid-flex board XV15, the rigid-flex board XXII22 is respectively connected to the rigid-flex board VIII8, the rigid-flex board XXIII23 and the rigid-flex board XXX30, and the rigid-flex board VIII8 is connected to the rigid-flex board XXIV24.

[0050] All of the above-mentioned rigid-flex boards include a rigid printed board 33 and a flexible printed board 34. A connector 32 is arranged on the rigid printed board 33. The connectors 32 on all rigid-flex boards are straight-plug printed board type connectors, which are vertically docked with the single-machine equipment 40 on the satellite body. The flexible printed board 34 path fits the single-machine wiring, which can reduce the installation space and facilitate the installation of docking screws. The rigid printed board 33 and the flexible printed board 34 are connected. A mounting hole 331 is arranged on the rigid printed board 33. The mounting hole 331 is a metallized hole to improve the installation strength. The opening size of the mounting hole 331 is 3.3 mm, which is suitable for 3 mm mounting screws. The rigid printed board 33 and the flexible printed board 34 are connected by lamination; the rigid printed board 33 is provided with a connector mounting hole, and the connector 32 can be welded to the rigid printed board 33; the signals of all the connectors 32 on each rigid-flexible board are transmitted through the copper wires inside the rigid printed board 33 and the flexible printed board 34. Each connector 32 is provided with a separate code display area on the corresponding rigid-flexible board, and each rigid-flexible board is provided with a model name display area to prevent errors.

[0051] The connection component includes a rigid-flexible board XIV14, a rigid-flexible board XXVIII28 and a rigid-flexible board XXIX29. The rigid-flexible board XIV14, the rigid-flexible board XXVIII28 and the rigid-flexible board XXIX29 are double-ended point-to-point rigid-flexible boards. The rigid-flexible board IV4 of the rigid-flexible board assembly A is connected to the rigid-flexible board XX20 of the rigid-flexible board assembly B through the rigid-flexible board XIV14, the rigid-flexible board XXVIII28 and the rigid-flexible board XXIX29 to achieve signal communication between the entire satellites.

[0052] An adapter connector 37 is provided on one side of the rigid-flex board XX20, and an extravehicular signal transmission connector 38 is provided on the back side of the rigid-flex board XX20 to transmit signals with extravehicular equipment, thereby collecting all signals inside and outside the satellite cabin; an avoidance hole 39 is provided on the rigid-flex board XX20 to avoid the satellite body structure. The rigid-flex board XX20 is the core hub of the entire satellite signal transmission. All signals of the entire satellite are transmitted to the rigid-flex board XX20 through the adapter connector 37, and the control signal is transmitted to the right regional connector through the internal wiring of the rigid-flex board XX20, and the power signal is transmitted to the left regional connector;

[0053] The rigid-flex board IV4 is provided with an adapter connector plug 35 and an adapter connector socket 36, and the adapter connector plug 35 is connected to the rigid-flex board IV4 via the adapter connector socket 36. The rigid-flex board IV4 is the core board of the rigid-flex board assembly A, and all single-machine signals of other rigid-flex boards of the rigid-flex board assembly A are collected on the rigid-flex board IV4 via the adapter connector plug 35 and the adapter connector socket 36.

[0054] A method for installing a stacked satellite rigid-flex board structure comprises the following steps:

[0055] S1: Check the code of each connector 32 and determine the installation position of each connector 32 on the satellite.

[0056] S2: Pre-assemble the connector 32. Pre-assemble the rigid printed circuit board 33 to which the support sleeve 41 is to be installed. Set the mounting screws accordingly. The support sleeve 41 is installed between the corresponding rigid-flexible board and the satellite structure. The support sleeve 41 is pre-fixed on the satellite structure. The screws are not fully tightened and the thread locking agent is not applied.

[0057] S3: Fix the bracket 42 to the satellite body structure by screws, and then assemble the rigid-flex board assembly A and the rigid-flex board assembly B.

[0058] S4: The rigid-flex board assembly A and the rigid-flex board assembly B can be assembled.

[0059] In the step S2, the installation order of the rigid-flex board assembly A is: rigid-flex board II2, rigid-flex board V5, rigid-flex board IX9, rigid-flex board III3, rigid-flex board I1, rigid-flex board X10, rigid-flex board IV4, rigid-flex board XVIII18, rigid-flex board XXVI26, rigid-flex board XI11, rigid-flex board VI6, rigid-flex board XXVII27, rigid-flex board XII12, rigid-flex board XXXI31, rigid-flex board XIV14, rigid-flex board XXVIII28 and rigid-flex board XXIX29;

[0060] The installation order of the rigid-flex board assembly B is: rigid-flex board XV15, rigid-flex board XVI16, rigid-flex board XVII17, rigid-flex board XX20, rigid-flex board XXI 21, rigid-flex board XXII22, rigid-flex board XXX30, rigid-flex board XXIII 23, rigid-flex board VIII8, rigid-flex board XXIV24, rigid-flex board XXV25, rigid-flex board VII7, rigid-flex board XIII13 and rigid-flex board XIX19.

[0061] In the step S3, when assembling the rigid-flex board assembly A and the rigid-flex board assembly B, remove the mounting screws on the corresponding rigid-flex board, apply Loctite 243 thread locker to the 2 / 3 length area of ​​the thread of the mounting screw, and use a torque screwdriver to determine the tightening torque value according to the screw specifications, screw materials, materials of the tightening parts, etc.; the tightening torque of the M2.5 screw is 46N·cm, the inspection torque is 44N·cm, the tightening torque of the M3 screw is 81N·cm, and the inspection torque is 72N·cm. Tighten and inspect the left and right sides alternately to avoid warping and deformation of the rigid printed circuit board;

[0062] In the step S4, when the rigid-flex board assembly A and the rigid-flex board assembly B are assembled, the rigid-flex board assembly A is lifted, and the rigid-flex board assembly A and the rigid-flex board assembly B are connected through the rigid-flex board XIV14, the rigid-flex board XXVIII28, and the rigid-flex board XXIX29, and then the flexible printed board 34 is straightened to prevent the flexible printed board 34 from being squeezed when the satellite is assembled.

[0063] All rigid-flex boards in this application can be arranged in a three-dimensional spatial structure, and the rigid-flex boards can be connected by means including rubber joints, bellows elastic joints, specially structured pipes and flexible fillers, which are determined according to the actual application scenario.

Claims

1. A stacked satellite rigid-flex board structure, characterized in that: The invention comprises a rigid-flexible board component A, a rigid-flexible board component B, a connecting component, a supporting sleeve (41) and a bracket (42), wherein the rigid-flexible board component A and the rigid-flexible board component B are connected via the connecting component, and the rigid-flexible board component A and the rigid-flexible board component B are connected to a satellite body via the supporting sleeve (41) and the bracket (42).

2. A stacked satellite rigid-flex board structure as claimed in claim 1, characterized in that: The rigid-flex board assembly A comprises a rigid-flex board I (1), a rigid-flex board II (2), a rigid-flex board III (3), a rigid-flex board IV (4), a rigid-flex board V (5), a rigid-flex board VI (6), a rigid-flex board IX (9), a rigid-flex board X (10), a rigid-flex board XI (11), a rigid-flex board XII (12), a rigid-flex board XVIII (18), a rigid-flex board XXVI (26), a rigid-flex board XXVII (27), and a rigid-flex board XXXI (31), and all the rigid-flex boards included in the rigid-flex board assembly A are bendable; The rigid-flex board I (1) is connected to the rigid-flex board III (3) via the rigid-flex board X (10), the rigid-flex board III (3) is respectively connected to the rigid-flex board V (5), the rigid-flex board IX (9) and the rigid-flex board XXVI (26), the rigid-flex board IV (4) is connected to the rigid-flex board III (3) via the rigid-flex board XXVI (26), the rigid-flex board IV (4) is respectively connected to the rigid-flex board VI (6) and the rigid-flex board The rigid-flex board V (5) is connected to the rigid-flex board II (2), one end of the rigid-flex board VI (6) is connected to the rigid-flex board XXVII (27), one end of the rigid-flex board XII (12) is connected to the rigid-flex board VI (6), the other end of the rigid-flex board XII (12) is connected to the rigid-flex board XXXI (31), and the rigid-flex board XXVI (26) is connected to the rigid-flex board XVIII (18).

3. A stacked satellite rigid-flex board structure as claimed in claim 1, characterized in that: The rigid-flex board assembly B comprises a rigid-flex board VII (7), a rigid-flex board VIII (8), a rigid-flex board XIII (13), a rigid-flex board XV (15), a rigid-flex board XVI (16), a rigid-flex board XVII (17), a rigid-flex board XIX (19), a rigid-flex board XX (20), a rigid-flex board XXI (21), a rigid-flex board XXII (22), a rigid-flex board XXIII (23), a rigid-flex board XXIV (24), a rigid-flex board XXV (25), and a rigid-flex board XXX (30), and all the rigid-flex boards included in the rigid-flex board assembly B are bendable; The rigid-flex board VII (7) is connected to the rigid-flex board XX (20), the rigid-flex board XIII (13) is connected to the rigid-flex board XIX (19) through the rigid-flex board VII (7), the rigid-flex board XIX (19) is connected to the rigid-flex board XXV (25), the rigid-flex board XX (20) is respectively connected to the rigid-flex board XXI (21) and the rigid-flex board XXII (22), the rigid-flex board XXI (21) is connected to one end of the rigid-flex board XVI (16) through the rigid-flex board XVII (17), the other end of the rigid-flex board XVI (16) is connected to the rigid-flex board XV (15), the rigid-flex board XXII (22) is respectively connected to the rigid-flex board VIII (8), the rigid-flex board XXIII (23) and the rigid-flex board XXX (30), the rigid-flex board VIII (8) is connected to the rigid-flex board XXIV (24).

4. A stacked satellite rigid-flex board structure as claimed in claim 2 or 3, characterized in that: The rigid-flexible board comprises a rigid printed board (33) and a flexible printed board (34); a connector (32) is arranged on the rigid printed board (33); the rigid printed board (33) and the flexible printed board (34) are connected; a mounting hole (331) is arranged on the rigid printed board (33); and the mounting hole (331) is a metallized hole.

5. The stacked satellite rigid-flex board structure according to claim 1, characterized in that: The connection component comprises a rigid-flex board XIV (14), a rigid-flex board XXVIII (28) and a rigid-flex board XXIX (29), and the rigid-flex board component A is connected to the rigid-flex board component B via the rigid-flex board XIV (14), the rigid-flex board XXVIII (28) and the rigid-flex board XXIX (29).

6. The stacked satellite rigid-flex board structure according to claim 1, characterized in that: A transfer connector (37) is arranged on one surface of the rigid-flexible board XX (20), a signal transmission connector (38) is arranged on the other surface of the rigid-flexible board XX (20), and an avoidance hole (39) is arranged on the rigid-flexible board XX (20).

7. A stacked satellite rigid-flex board structure as claimed in claim 2, characterized in that: The rigid-flex board IV (4) is provided with an adapter connector plug (35) and an adapter connector socket (36), and the adapter connector plug (35) is connected to the rigid-flex board IV (4) via the adapter connector socket (36).

8. A method for installing a stacked satellite rigid-flex board structure as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: S1: Check the code of each connector (32) and determine the installation position of each connector (32) on the satellite; S2: pre-assemble the connector (32), first pre-assemble the rigid printed circuit board (33) to which the support sleeve (41) is to be installed, and corresponding mounting screws are set, the support sleeve (41) is installed between the corresponding rigid-flexible board and the satellite structure, and the support sleeve (41) is pre-fixed on the satellite structure, the screws are not completely tightened and the thread locking agent is not applied; S3: Fix the bracket (42) to the satellite body structure by screws, and then assemble the rigid-flexible board assembly A and the rigid-flexible board assembly B; S4: The rigid-flex board assembly A and the rigid-flex board assembly B can be assembled.

9. The method for installing a stacked satellite rigid-flex board structure according to claim 8, characterized in that: In the step S2, the order of installing the rigid-flex board assembly A is: rigid-flex board II (2), rigid-flex board V (5), rigid-flex board IX (9), rigid-flex board III (3), rigid-flex board I (1), rigid-flex board X (10), rigid-flex board IV (4), rigid-flex board XVIII (18), rigid-flex board XXVI (26), rigid-flex board XI (11), rigid-flex board VI (6), rigid-flex board XXVII (27), rigid-flex board XII (12), rigid-flex board XXXI (31), rigid-flex board XIV (14), rigid-flex board XXVIII (28) and rigid-flex board XXIX (29); The installation order of the rigid-flex board assembly B is: rigid-flex board XV (15), rigid-flex board XVI (16), rigid-flex board XVII (17), rigid-flex board XX (20), rigid-flex board XXI (21), rigid-flex board XXII (22), rigid-flex board XXX (30), rigid-flex board XXIII (23), rigid-flex board VIII (8), rigid-flex board XXIV (24), rigid-flex board XXV (25), rigid-flex board VII (7), rigid-flex board XIII (13) and rigid-flex board XIX (19).

10. The method for installing a stacked satellite rigid-flex board structure according to claim 8, characterized in that: In the step S3, when assembling the rigid-flex board assembly A and the rigid-flex board assembly B, remove the mounting screws on the corresponding rigid-flex board, apply thread locking agent to the 2 / 3 length area of ​​the thread of the mounting screw, and use a torque screwdriver to determine the tightening torque value according to the screw specifications, screw materials, materials of the tightening parts, etc.; the tightening torque of the M2.5 screw is 40-50N·cm, the inspection torque is 40-50N·cm, the tightening torque of the M3 screw is 70-90N·cm, and the inspection torque is 60-80N·cm. Tighten and inspect the left and right sides alternately to avoid warping and deformation of the rigid printed circuit board; In the step S4, when the rigid-flex board assembly A and the rigid-flex board assembly B are assembled, the rigid-flex board assembly A is lifted, and the rigid-flex board assembly A and the rigid-flex board assembly B are connected via the rigid-flex board 14 (14), the rigid-flex board XXVIII (28), and the rigid-flex board XXIX (29), and then the flexible printed board (34) is straightened to prevent the flexible printed board (34) from being squeezed when the satellite is assembled.

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