Double-layer printed board secondary power supply module structure convenient to disassemble and installation method

Abstract

The invention relates to a double-layer printed board secondary power supply module structure convenient to disassemble and an installation method. The double-layer printed board secondary power supply module structure comprises a structure outer frame, side edge bent insertion connectors, top connectors, a bottom cover plate, U-shaped side cover plates, a lower-layer printed board, an upper-layer printed board, inter-board connectors and supporting screws. The bottom cover plate is mounted on the bottom surface of the structure outer frame and is detachable, so that the side edge bent plug-in connector can be welded conveniently; the side edge bent plug-in connector, the U-shaped side cover plate and the structure outer frame are locked together, and after the U-shaped side cover plate is detached, the lower layer printed board and the side edge bent plug-in connector can be taken down together, so that repair is facilitated; the top connector is in bent plug connection with the upper printed board, and a flexible connection part is arranged in the middle of the upper printed board, so that the upper printed board can be folded up and down. By adopting the design of the U-shaped detachable side plates and the upper-layer flexible printed board, the problem that a secondary power supply product is difficult to repair and disassemble is solved.

Description

Technical Field

[0001] The present invention belongs to the field of aerospace secondary power supply structures, and in particular relates to a conveniently disassembled double-layer printed circuit board secondary power supply module structure and an installation method. Background Art

[0002] Satellite secondary power products primarily provide secondary power system solutions for satellite payloads. They convert primary bus voltage into a suitable voltage for power-consuming equipment, provide primary bus overcurrent protection, isolate faults between power-consuming equipment and the primary bus, and provide corresponding telemetry equipment. They offer excellent reliability, high integration, and high conversion efficiency, meeting future demands for miniaturization and integration. As a key component of a spacecraft, satellite-borne secondary power supplies play a vital role in its reliable and safe operation.

[0003] Considering the cost of satellite launches and the limited takeoff weight of rockets, secondary power supply products must be minimized in size and weight to increase the satellite's payload capacity and thus improve its economic efficiency. Consequently, secondary power supply products are typically small, space-constrained, have densely packed device wiring, and are difficult to disassemble and repair. Therefore, designing a double-layer printed circuit board secondary power supply module installation solution that allows for easy disassembly is essential. Summary of the Invention

[0004] The purpose of the present invention is to provide a conveniently disassembled double-layer printed circuit board secondary power supply module structure and installation method. Through the modular structure design, the portable disassembly and assembly of the lower printed circuit board and connectors are realized. The design of U-shaped detachable side panels and upper flexible printed circuit boards solves the problem of difficult rework and disassembly of secondary power supply products.

[0005] The above-mentioned purpose of the present invention is mainly achieved through the following technical solutions:

[0006] A conveniently disassembled double-layer printed circuit board secondary power module structure includes a structural outer frame, a U-shaped side cover, a side bend plug-in connector, an inter-board electrical connector, a top connector, an upper printed circuit board, and a lower printed circuit board. The structural outer frame is a cavity structure, the lower printed circuit board is installed inside the structural outer frame and connected to the structural outer frame, the side bend plug-in connector is inserted into and connected to the lower printed circuit board, and the U-shaped side cover and the side bend plug-in connector are connected to the structural outer frame.

[0007] The upper printed board and the lower printed board are connected through an inter-board electrical connector. The upper printed board includes a first printed board, a second printed board and a flexible printed board. The flexible printed board is arranged between the first printed board and the second printed board. The upper printed board is folded up and down through the flexible printed board; the top connector is inserted into the first printed board and connected to the first printed board.

[0008] It also includes supporting screws. The upper printed circuit board and the lower printed circuit board are plugged into each other through the inter-board electrical connector and are locked by the supporting screws.

[0009] It also includes a bottom cover plate. A plurality of through holes are provided at the bottom of the structural outer frame. The bottom cover plate is installed in the through holes. After the bottom cover plate is removed, the side bend connectors can be welded through the through holes.

[0010] It also includes a locking assembly, a U-shaped through hole is provided on the structural outer frame, the side bend plug-in plug-in passes through the U-shaped through hole and is connected to the lower printed circuit board, the U-shaped side cover is provided in the U-shaped through hole, and the U-shaped side cover, the side bend plug-in plug-in and the structural outer frame are connected by the locking assembly.

[0011] A through hole is provided on the structural outer frame, and the top connector passes through the through hole to be connected with the first printed circuit board.

[0012] The top connector has its bent pins facing upwards and is bent and inserted on the first printed circuit board.

[0013] A method for installing a double-layer printed circuit board secondary power module structure that is easily disassembled comprises the following steps:

[0014] (1) Perform patch welding on the lower printed circuit board and install the lower printed circuit board inside the structural frame;

[0015] (2) Insert the side bend connector into the lower printed circuit board through the through hole on the structural outer frame, insert the U-shaped side cover, and lock and fix the U-shaped side cover and the side bend connector;

[0016] (3) Weld the side bend connectors through the through holes at the bottom of the structural frame, and install the bottom cover after welding is completed;

[0017] (4) Installing an upper printed board, the upper printed board includes a first printed board, a second printed board and a flexible printed board, and the flexible printed board is arranged between the first printed board and the second printed board;

[0018] (5) Lock and fix the first printed circuit board to the outer frame of the structure, bend the top connector from the outside of the outer frame of the structure to insert the first printed circuit board, and lock and fix the top connector to the outer frame of the structure after the bent pin is inserted;

[0019] (6) Solder the top connector. After welding, plug the second printed circuit board into the inter-board electrical connector on the lower printed circuit board and tighten it with the support screws.

[0020] (7) Tighten the second printed circuit board and the supporting screws on the lower printed circuit board to complete the installation.

[0021] In the step (2), the U-shaped side cover plate and the side bend connector are connected to the structural outer frame through a locking assembly.

[0022] Remove the locking assembly, pull out the U-shaped side cover, remove the screw fasteners between the second printed circuit board and the supporting screws, fold the second printed circuit board upward, and remove the side bend connector together with the lower printed circuit board.

[0023] Compared with the prior art, the present invention has at least the following beneficial effects:

[0024] (1) The present invention solves the problem of difficulty in disassembling and repairing the current secondary power supply product structure. The upper printed circuit board is composed of two ordinary printed circuit boards and a portion of flexible printed circuit boards. The flexible connecting part in the middle can realize the upper printed circuit board to be folded up and down; the installation of the side connector adopts a U-shaped side cover design. After removing the U-shaped side cover and flipping up the upper board, the lower printed circuit board and the connector can be taken out together, which is very convenient for product repair and disassembly. The structural installation scheme of the present invention is simple to operate and easy to promote and apply.

[0025] (2) In the embodiment of the present invention, the side bent connector is preferably locked together with the U-shaped side cover and the structural outer frame. After the U-shaped side cover is removed, the lower printed circuit board and the connector can be removed together for easy repair; the top connector is bent upward and inserted into the upper printed circuit board, and welding can be performed on the front of the upper printed circuit board;

[0026] (3) In the embodiment of the present invention, a through hole is preferably opened on the bottom surface of the structural outer frame and a bottom cover is installed. After the bottom cover is opened, the side bent connector can be welded from the bottom surface of the structural outer frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the conveniently disassembled double-layer printed circuit board secondary power supply module of the present invention;

[0028] Figure 2 This is a schematic diagram of the bottom cover assembly of the conveniently disassembled double-layer printed circuit board secondary power module structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the assembly of the conveniently disassembled double-layer printed circuit board secondary power module of the present invention, with the upper printed circuit board flipped up. DETAILED DESCRIPTION

[0030] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments:

[0031] like Figure 1 As shown, the present invention provides a conveniently disassembled double-layer printed circuit board secondary power module structure, comprising a structural outer frame 1, a U-shaped side cover 2, a side bent plug connector 3, an inter-board electrical connector 4, a top connector 5, an upper printed circuit board 6, a lower printed circuit board 7, support screws 8, a bottom cover 9, and a locking assembly 10;

[0032] like Figure 2 As shown, the structural outer frame 1 has a U-shaped through-hole for mounting the U-shaped side cover 2 and the side bend connector 3. The bottom of the structural outer frame 1 has a hole for mounting the bottom cover 9. The bottom cover 9 is removable, facilitating soldering of the side bend connector 3. After the U-shaped side cover 2 is removed, the lower printed circuit board 7 and the connector can be removed together for easy repair.

[0033] The lower printed circuit board 7 and the structural outer frame 1 are locked by screws, the side bend connector 3 is inserted into the lower printed circuit board 7, and the side bend connector 3 is locked together with the U-shaped side cover 2 and the structural outer frame 1 through the locking assembly 10. After the bottom cover 9 is removed, the side bend connector 3 can be welded from the bottom. Welding after locking can prevent the bent pins of the connector from being subjected to stress.

[0034] like Figure 3 As shown, the upper printed board 6 includes a first printed board 602, a second printed board 603 and a flexible printed board 601 in the middle. The flexible printed board 601 can realize the upper printed board 6 to be folded up and down, which is convenient for desoldering and reworking the components on the upper printed board 6.

[0035] The top connector 5 is bent upward and inserted into the first printed circuit board 602. This installation method allows soldering of the top connector 5 on the front of the first printed circuit board 602 after the first printed circuit board 602 and the top connector 5 are locked. This facilitates soldering and prevents stress on the bent pins of the top connector 5. This installation method eliminates any mounting contact between the top connector 5 and the lower printed circuit board 7, making it easier to remove the lower printed circuit board 7.

[0036] like Figure 1 As shown, the upper and lower printed circuit boards are plugged into each other through an inter-board electrical connector 4 and are locked by support screws 8, so that signal transmission between the upper and lower printed circuit boards can be achieved.

[0037] After removing the locking assembly 10, the U-shaped side cover 2 can be pulled out, the screw fasteners between the second printed circuit board 603 and the support screw 8 can be removed, and the second printed circuit board 603 can be folded upward. Since there is still a welding relationship between the side bend connector 3 and the lower printed circuit board 7, the side bend connector 3 and the lower printed circuit board 7 can be removed together, which is convenient for the separate repair of the lower printed circuit board 7.

[0038] The following describes the installation process of a conveniently disassembled double-layer printed circuit board secondary power module structure of the present invention.

[0039] After the lower printed circuit board 7 is soldered, it is installed inside the structural outer frame 1 using the locking member. The side bent connector 3 is then inserted into the lower printed circuit board 7 and the U-shaped side cover 2. The side bent connector 3 is then locked to the U-shaped side cover 2 and the structural outer frame 1 using the screw and nut locking assembly 10. The side bent connector 3 is then welded from the bottom of the structure. After welding, the bottom cover 9 is installed. The first printed circuit board 602 is locked and fixed to the structural outer frame 1. The top connector 5 is bent and inserted into the first printed circuit board 602 from the outside of the structural outer frame 1. After the bent pins are inserted, the top connector 5 is locked and fixed to the structural outer frame 1 using the locking member. The top connector 5 is then soldered to the front of the upper printed circuit board 6. After welding, the second printed circuit board 603 is plugged into the inter-board electrical connector 4 on the lower printed circuit board 7. After ensuring that the plugs are tight, the second printed circuit board 603 is locked and fixed to the support screws 8 on the lower printed circuit board 7.

[0040] The above description is only the best specific implementation method of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

[0041] The contents not described in detail in the specification of the present invention belong to the common knowledge of professionals in this field.

Claims

1. A conveniently disassembled double-layer printed circuit board secondary power module structure, characterized by: The invention comprises a structural outer frame (1), a U-shaped side cover (2), a side bend plug-in connector (3), an inter-board electrical connector (4), a top connector (5), an upper printed circuit board (6) and a lower printed circuit board (7), wherein the structural outer frame (1) is a cavity structure, the lower printed circuit board (7) is installed inside the structural outer frame (1) and connected to the structural outer frame (1), the side bend plug-in connector (3) is inserted on the lower printed circuit board (7) and connected to the lower printed circuit board (7), and the U-shaped side cover (2) and the side bend plug-in connector (3) are connected to the structural outer frame (1); An upper printed board (6) and a lower printed board (7) are connected via an inter-board electrical connector (4); the upper printed board (6) comprises a first printed board (602), a second printed board (603) and a flexible printed board (601); the flexible printed board (601) is arranged between the first printed board (602) and the second printed board (603); and the upper printed board (6) is folded up and down via the flexible printed board (601); and a top connector (5) is inserted into the first printed board (602) and connected to the first printed board (602).

2. The conveniently disassembled double-layer printed circuit board secondary power module structure according to claim 1 is characterized in that: It also includes supporting screws (8); the upper printed board (6) and the lower printed board (7) are plugged into each other through the inter-board electrical connector (4) and are locked by the supporting screws (8).

3. The conveniently disassembled double-layer printed circuit board secondary power module structure according to claim 1 is characterized in that: It also includes a bottom cover plate (9), and a plurality of through holes are provided at the bottom of the structural outer frame (1). The bottom cover plate (9) is installed in the through holes. When the bottom cover plate (9) is removed, the side bend connector (3) can be welded through the through holes.

4. The conveniently disassembled double-layer printed circuit board secondary power module structure according to claim 1 is characterized in that: The invention also includes a locking assembly (10), a U-shaped through hole is provided on the structural outer frame (1), a side bend plug-in connector (3) passes through the U-shaped through hole and is connected to the lower printed circuit board (7), a U-shaped side cover plate (2) is provided in the U-shaped through hole, and the U-shaped side cover plate (2), the side bend plug-in connector (3) and the structural outer frame (1) are connected via the locking assembly (10).

5. The conveniently disassembled double-layer printed circuit board secondary power module structure according to claim 1 is characterized in that: A through hole is provided on the structural outer frame (1), and a top connector (5) passes through the through hole to be connected to the first printed circuit board (602).

6. The conveniently disassembled double-layer printed circuit board secondary power module structure according to claim 1 is characterized in that: The top connector (5) has its bent pins facing upwards and is bent and plugged onto the first printed circuit board (602).

7. A method for installing a double-layer printed circuit board secondary power module structure that is easily disassembled, characterized in that: The following steps are involved: (1) performing patch welding on the lower printed circuit board (7) and installing the lower printed circuit board (7) inside the structural outer frame (1); (2) Insert the side bend connector (3) onto the lower printed circuit board (7) through the through hole on the structural outer frame (1), insert the U-shaped side cover (2), and lock and fix the U-shaped side cover (2) and the side bend connector (3); (3) Weld the side bend connector (3) through the bottom through-hole of the structural outer frame (1), and install the bottom cover (9) after welding is completed; (4) installing an upper printed board (6), wherein the upper printed board (6) comprises a first printed board (602), a second printed board (603) and a flexible printed board (601), wherein the flexible printed board (601) is arranged between the first printed board (602) and the second printed board (603); (5) The first printed circuit board (602) is locked and fixed to the outer frame (1), and the top connector (5) is bent and inserted into the first printed circuit board (602) from the outside of the outer frame (1). After the bent pin is inserted, the top connector (5) is locked and fixed to the outer frame (1); (6) Welding the top connector (5). After welding is completed, plug the second printed circuit board (603) into the inter-board electrical connector (4) on the lower printed circuit board (7); and tighten the connector with the support screw (8); (7) Tighten and fix the second printed circuit board (603) and the supporting screws (8) on the lower printed circuit board (7) to complete the installation.

8. The method for installing a double-layer printed circuit board secondary power module structure that is easily disassembled according to claim 7, characterized in that: In the step (2), the U-shaped side cover plate (2) and the side bend connector (3) are connected to the structural outer frame (1) via a locking assembly (10).

9. The method for installing a double-layer printed circuit board secondary power module structure that is easily disassembled according to claim 8, characterized in that: Remove the locking assembly (10), pull out the U-shaped side cover (2), remove the screw fasteners between the second printed circuit board (603) and the support screws (8), and fold the second printed circuit board (603) upwards, so that the side bend connector (3) and the lower printed circuit board (7) can be removed together.

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