Pre-pressing buckling structure capable of being rapidly assembled and disassembled

Abstract

The utility model discloses a pre-pressing buckling structure capable of being quickly assembled and disassembled, which belongs to the technical field of fastening of electronic components and comprises a pre-pressing support and two buckling pieces. The pre-pressing bracket is used for pressing the top of the BB connector, and the pre-pressing bracket is provided with two support arms; the fasteners are used for being installed on a PCB, and the two fasteners are used for being arranged on the two opposite sides of the BB connector respectively. The buckling piece comprises two elastic arms which are oppositely arranged, a gap is formed between the opposite side walls of the two elastic arms, so that a guide channel and a buckling channel which are arranged from top to bottom are formed, the guide channel is communicated with the buckling channel, the width of the guide channel is smaller than that of the supporting arm, and the width of the buckling channel is not smaller than that of the supporting arm; the support arm outwards extrudes the two elastic arms to pass through the guide channel, and the elastic arms are elastically reset after external force is lost; and the support arm is provided with an anti-falling piece for preventing the support arm from falling off from the buckling channel. The BB connector is simple in structure and convenient to disassemble and assemble, reduces assembly procedures, and has universality for BB connectors with the same width and different lengths.

Description

Technical Field

[0001] This utility model relates to the field of electronic component fastening technology, and in particular to a pre-pressed fastening structure for quick assembly and disassembly. Background Technology

[0002] In modular design of electronic devices, BB connectors (board-to-board connectors) are key interconnect components between PCBs (printed circuit boards) and FPCs (flexible printed circuit boards), and their reliability directly affects the overall performance of the device. Current technologies generally require applying additional pre-pressure after the male and female ends are engaged to ensure the stability of BB connectors. However, when the device structure cannot achieve pre-pressure directly through the upper and lower housings, conventional solutions have significant technical drawbacks:

[0003] The traditional approach uses a hardware bracket assembly structure, which achieves pre-tensioning by combining SMT (Surface Mount Technology) hardware clips with brackets equipped with locking screws. While this solution provides effective pre-tensioning force, it occupies a large structural space, which is not conducive to product miniaturization design and PCB layout, and involves many assembly steps, severely restricting the development of product miniaturization.

[0004] Traditional method two employs a double-layer shielding frame structure, achieving pre-compression by fastening a perforated patch shielding frame to a perforated shielding cover. While this solution can reduce some structural space, it requires custom-made shielding frame molds for different product models, resulting in low standardization and significantly increasing development costs and time.

[0005] To address this, a pre-compression fastening structure for quick assembly and disassembly is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a pre-pressed fastening structure for quick assembly and disassembly, aiming to solve or improve at least one of the above-mentioned technical problems.

[0007] To achieve the above objectives, this utility model provides the following solution: This utility model provides a quick-assembly and disassembly pre-pressing fastening structure, including a pre-pressing bracket and two fastening members; the pre-pressing bracket is used to press on the top of the BB connector, and the pre-pressing bracket has two arms; the fastening members are used to be mounted on the PCB board, and the two fastening members are respectively set on opposite sides of the BB connector;

[0008] The fastening component includes two opposing elastic arms with a gap between their opposing sidewalls, thereby forming a guide channel and a fastening channel arranged from top to bottom. The guide channel and the fastening channel are connected. The width of the guide channel is less than the width of the support arm, and the width of the fastening channel is not less than the width of the support arm. The support arm pushes the two elastic arms outward through the guide channel. After the external force is lost, the elastic arms elastically return to their original position.

[0009] The support arm is provided with an anti-detachment component to prevent it from falling off from the fastening channel.

[0010] Optionally, the elastic arm has an opening in the middle, the opening is located on the side wall of the fastening channel, and the top of the two openings on the fastening member is respectively fixed with a guide block and a buckle plate. When the arm enters the fastening channel, the guide block fits against the side wall of the arm, and the bottom of the buckle plate contacts the top of the arm.

[0011] Optionally, a guide plate is fixed to the top of the elastic arm, and the two guide plates on the fastener are arranged in an inverted V-shape.

[0012] Optionally, the bottoms of the two elastic arms are fixedly connected by a base plate, which is used for soldering to a PCB board.

[0013] Optionally, the anti-detachment component includes support rods fixed to both ends of the support arm, with the top of the support rods fixed to the preload bracket.

[0014] Optionally, after the support arm enters the fastening channel, the two support rods are located at both ends of the fastening channel and respectively contact the two end faces of the elastic arm.

[0015] Optionally, a conductive sponge is sandwiched between the pre-compression bracket and the BB connector.

[0016] This utility model discloses the following technical effects: The two arms of the pre-compression bracket are aligned with the guide channels on both sides of the BB connector. The pre-compression bracket is pressed down from top to bottom, causing the arms to compress the two elastic arms, expanding them outwards and increasing the size of the guide channels. This allows the arms to enter the engagement channel through the guide channels. Then, the elastic arms elastically reset, and the guide channels return to their original size, thus confining the arms within the guide channels. This achieves the engagement of the pre-compression bracket with the two engagement parts, thereby pre-compressing the BB connector. This application features a simple structure, convenient assembly and disassembly, reduced assembly steps, and versatility for BB connectors of the same width but different lengths, reducing development costs. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is an installation diagram of the present invention;

[0019] Figure 2 This is a cross-sectional view of the installation of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the pre-compression support structure in this utility model;

[0022] Figure 5 This is a schematic diagram of the fastening component in this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the buckle plate in this utility model.

[0024] In the diagram: 1. Pre-compression bracket; 2. Fastening component; 3. BB connector; 4. Support arm; 5. PCB board; 6. Elastic arm; 7. Guide channel; 8. Fastening channel; 9. Guide block; 10. Buckle plate; 11. Guide plate; 12. Base plate; 13. Conductive sponge; 14. Support rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Reference Figures 1-6 This utility model provides a quick-assembly and disassembly pre-pressing fastening structure, including a pre-pressing bracket 1 and two fastening parts 2; the pre-pressing bracket 1 is used to press on the top of the BB connector 3, and the pre-pressing bracket 1 has two arms 4; the fastening parts 2 are used to be installed on the PCB board 5, and the two fastening parts 2 are respectively set on opposite sides of the BB connector 3.

[0028] The fastening element 2 includes two opposing elastic arms 6, with a gap between the opposing sidewalls of the two elastic arms 6, thereby forming a guide channel 7 and a fastening channel 8 arranged from top to bottom. The guide channel 7 and the fastening channel 8 are connected. The width of the guide channel 7 is less than the width of the support arm 4, and the width of the fastening channel 8 is not less than the width of the support arm 4. When the support arm 4 pushes the two elastic arms 6 outward through the guide channel 7, the elastic arms 6 elastically return to their original position after the external force is lost.

[0029] The support arm 4 is equipped with an anti-detachment component to prevent it from falling off from the fastening channel 8.

[0030] In this embodiment, the fastening element 2 is made of stainless steel and nickel-plated on the surface. When in use, the two elastic arms 6 are squeezed outward by the support arm 4, the guide channel 7 expands, and the support arm 4 enters the fastening channel 8 through the guide channel 7. Then the elastic arm 6 is reset, the guide channel 7 returns to its original size, and the support arm 4 is confined in the fastening channel 8, thereby allowing the pre-pressure bracket 1 to apply pre-pressure to the BB connector 3.

[0031] In some alternative embodiments, the elastic arm 6 has an opening in the middle, which is located on the side wall of the fastening channel 8. The top of the two openings on the fastening member 2 is fixed with a guide block 9 and a fastening plate 10, respectively. When the support arm 4 enters the fastening channel 8, the guide block 9 fits against the side wall of the support arm 4, and the bottom of the fastening plate 10 contacts the top of the support arm 4.

[0032] When the support arm 4 enters the fastening channel 8, the fastening plate 10 is located at the top of the support arm 4, which limits the support arm 4 and reduces the risk of the support arm 4 falling off.

[0033] In some alternative embodiments, a guide plate 11 is fixed to the top of the elastic arm 6, and the two guide plates 11 on the fastener 2 are arranged in an inverted V-shape.

[0034] The two guide plates 11 facilitate the entry of the support arm 4 into the guide channel 7.

[0035] In some alternative embodiments, the bottoms of the two elastic arms 6 are fixed by a base plate 12, which is used to solder to the PCB board 5.

[0036] In some alternative embodiments, the anti-detachment component includes support rods 14 fixed to both ends of the support arm 4, with the top of the support rods 14 fixed to the preload bracket 1.

[0037] In some alternative embodiments, after the support arm 4 enters the engagement channel 8, the two support rods 14 are located at both ends of the engagement channel 8 and respectively contact the two end faces of the elastic arm 6.

[0038] The two support rods 14 limit the front and rear movement of the support arm 4, reducing the risk of the support arm 4 falling off.

[0039] In some alternative embodiments, a conductive sponge 13 is sandwiched between the pre-compression bracket 1 and the BB connector 3.

[0040] The conductive sponge 13 allows the pre-compression bracket 1 to make flexible contact with the BB connector 3, reducing damage to the BB connector 3.

[0041] In use, the two arms 4 of the pre-compression bracket 1 are aligned with the guide channels 7 on both sides of the BB connector 3. The pre-compression bracket 1 is pressed down from top to bottom, and the arms 4 enter the guide channels 7 through the two guide plates 11 and squeeze the guide channels 7 outward. The two elastic arms 6 expand outward, causing the guide channels 7 to increase in size, so that the arms 4 enter the fastening channel 8 through the guide channels 7. Then the two elastic arms 6 are reset, and the guide channels 7 return to their original size, thus confining the arms 4 within the fastening channel 8. At this time, the guide block 9 is in contact with the side wall of the arms 4, the bottom of the fastening plate 10 is in contact with the top of the arms 4, and the two support rods 14 are in contact with the two end faces of the elastic arms 6, respectively, limiting the arms 4 in the vertical and horizontal directions. This causes the pre-compression bracket 1 to press the conductive sponge 13 to apply pre-pressure to the BB connector 3.

[0042] During disassembly, the two elastic arms 6 are squeezed outward with a tool, the guide channel 7 expands, and the support arm 4 is disengaged.

[0043] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A quick-mounting and dismounting pre-pressing and buckling structure, characterized in that: The utility model relates to a BB connector fixing device, which comprises a pre-pressing support (1) and two buckling members (2), the pre-pressing support (1) is used for pressing on the top of a BB connector (3), the pre-pressing support (1) has two supporting arms (4), and the two buckling members (2) are used for being arranged on a PCB (5) respectively and are arranged on the opposite sides of the BB connector (3) respectively. The buckling member (2) comprises two oppositely arranged elastic arms (6), the two elastic arms (6) have a spacing between the opposite side walls, so as to form a guiding channel (7) and a buckling channel (8) arranged from top to bottom, the guiding channel (7) communicates with the buckling channel (8), the width of the guiding channel (7) is smaller than the width of the supporting arm (4), and the width of the buckling channel (8) is not smaller than the width of the supporting arm (4); the supporting arm (4) extrudes the two elastic arms (6) through the guiding channel (7), and the elastic arms (6) are elastically reset after losing external force. The supporting arm (4) is provided with an anti-falling member for preventing falling from the buckling channel (8).

2. The quick attachable and detachable pre-pressing and buckling structure according to claim 1, characterized in that: The middle part of the elastic arm (6) is provided with an opening, the opening is located on the side wall of the buckling channel (8), the top of the two openings on the buckling member (2) is fixedly connected with a guide block (9) and a buckling plate (10) respectively, when the supporting arm (4) enters the buckling channel (8), the guide block (9) is attached to the side wall of the supporting arm (4), and the bottom of the buckling plate (10) is in contact with the top of the supporting arm (4).

3. The quick attachable and detachable pre-pressing and buckling structure according to claim 1, characterized in that: The top of the elastic arm (6) is fixedly connected with a guide plate (11), and the two guide plates (11) on the buckling member (2) are arranged in an inverted eight-shaped mode.

4. The quick attachable and detachable pre-pressing and buckling structure according to claim 1, characterized in that: The bottoms of the two elastic arms (6) are fixedly connected through a bottom plate (12), and the bottom plate (12) is used for being welded on the PCB (5).

5. The quick attachable and detachable pre-pressing and buckling structure according to claim 1, characterized in that: The anti-falling member comprises a supporting rod (14) fixedly connected at the two ends of the supporting arm (4), and the top of the supporting rod (14) is fixedly connected with the pre-pressing support (1).

6. The quick attachable and detachable pre-pressing and buckling structure according to claim 5, characterized in that: After the supporting arm (4) enters the buckling channel (8), the two supporting rods (14) are located at the two ends of the buckling channel (8) respectively and are in contact with the two end faces of the elastic arms (6) respectively.

7. The quick attachable and detachable pre-pressing and buckling structure according to claim 5, characterized in that: The pre-pressing support (1) and the BB connector (3) are clamped with a conductive sponge (13).

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