A plate-to-plate connection structure that is easy to disassemble

Abstract

The utility model relates to a board-to-board connecting structure convenient to disassemble, and at least one set of rotatable operation assembly is equipped on the both sides of the first plug-in part of the first circuit board, and the second circuit board is correspondingly equipped with a fixing seat on the opposite sides of the second plug-in part, the rotatable operation assembly includes a rotating operation end, a limiting part and a threaded part matched with the fixing seat, the first circuit board is equipped with a constraint hole, the aperture of the constraint hole is larger than the outer diameter of the rotating operation end and smaller than the outer diameter of the limiting part, so that the rotating operation end passes through the constraint hole and the limiting part is located below the first circuit board, when the rotatable operation assembly is rotated, the axial displacement generated pushes the first circuit board with the limiting part to separate the first plug-in part from the second plug-in part. The utility model pushes the first circuit board with the limiting part of the rotatable operation assembly, so that the first plug-in part and the second plug-in part are smoothly separated along the plug-in direction, the rotating operation is more relaxed and labor-saving, and the difficulty of disassembling the board-to-board connector is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of electronic device connection, specifically to a board-to-board connection structure that is easy to disassemble. Background Technology

[0002] In modern electronic devices, board-to-board connectors are key components for signal interconnection between the motherboard and the backing board. With the rapid development of electronic technology and the increasing sophistication of device functions, the demand for signal transmission is also growing, leading to the widespread application of board-to-board connectors. Today, many complex electronic devices need to process large amounts of data and signals, resulting in a corresponding increase in the number of pins on board-to-board connectors, typically ranging from tens to hundreds. Especially for devices with extremely high requirements for space utilization and signal transmission quality, high-density board-to-board connectors are used to meet the needs of power supply and signal transmission.

[0003] In practical use, the common method of manually prying open circuit boards poses some risks for high-density board-to-board connectors. For example, after the male and female connectors are inserted together, their tight connection structure requires considerable force to separate them, making disassembly inconvenient. Furthermore, forcefully prying open the circuit board can easily lead to excessive force on one side, and uneven force on both sides of the connector can damage the circuit board and potentially the connector itself, affecting its subsequent performance and reducing its reliability and lifespan. Utility Model Content

[0004] To address the problems of difficulty in disassembling existing high-density board-to-board connectors and the risk of damaging the circuit board and connector by manually prying the circuit board, this utility model provides a board-to-board connection structure that is easy to disassemble.

[0005] The technical solution of this utility model is as follows:

[0006] A disassembleable board-to-board connection structure includes a first circuit board with a first insertion portion and a second circuit board with a second insertion portion. The first and second insertion portions are elongated male-female insertion structures. The first circuit board has at least one set of rotatable operating components on opposite sides of the first insertion portion, and the second circuit board has corresponding fixing seats on opposite sides of the second insertion portion. Each rotatable operating component includes a rotating operating end, a limiting portion, and a threaded portion that threadedly engages with the fixing seat. The first circuit board has a constraint hole with a diameter larger than the outer diameter of the rotating operating end and smaller than the outer diameter of the limiting portion, so that the rotating operating end passes through the constraint hole while the limiting portion is located below the first circuit board.

[0007] When the rotatable operating component is rotated, the threaded part engages with the threaded part of the fixed base to generate axial displacement, and the limiting part pushes the first circuit board to separate the first plug-in part from the second plug-in part along the plug-in direction.

[0008] In a preferred embodiment of this utility model, the first circuit board serves as a buckle plate, the second circuit board serves as a base plate, the first insertion part on the buckle plate is a male connector, and the second insertion part on the base plate is a female connector.

[0009] As a preferred embodiment of this utility model, the top of the rotating operating end is recessed with an inner corner groove, the cross-section of the inner corner groove is a regular polygon, and the number of sides is 3 to 8.

[0010] Furthermore, the bottom of the inner corner groove is provided with a screw hole, which is used to install a stud with a washer to fix the first circuit board.

[0011] As a preferred embodiment of this utility model, the limiting part is a circular boss.

[0012] Furthermore, the diameter of the circular boss is 1 to 5 millimeters larger than the diameter of the constraint hole.

[0013] As a preferred embodiment of this utility model, the threaded part is an externally threaded rod, and the pitch of the externally threaded rod is 0.5 to 1.5 mm.

[0014] In a preferred embodiment of this utility model, the fixing seat is an internally threaded sleeve, and the axial height of the internally threaded sleeve is greater than or equal to the effective thread length of the threaded portion.

[0015] As a preferred embodiment of this utility model, the bottom of the fixing base is provided with a threaded end, and the second circuit board is provided with a threaded mounting hole corresponding to the position of the fixing base, and the bottom of the fixing base is threadedly connected to the second circuit board.

[0016] As a preferred embodiment of this utility model, the second circuit board is provided with a through hole corresponding to the position of the fixing seat, and a screw is provided at the bottom of the fixing seat. The screw passes through the through hole and is then tightened by a nut.

[0017] The advantages of this utility model based on the above solution are as follows:

[0018] This invention features a rotatable operating component that utilizes the threaded engagement between the threaded portion and the fixed base to generate axial displacement. The limiting portion of the rotatable operating component pushes the first circuit board, causing the first and second plug-in portions to separate smoothly along the plugging direction. Compared to prying the circuit board by hand, the rotation operation is easier and less strenuous, significantly reducing the difficulty of disassembling the board-to-board connector. Furthermore, the separation method distributes force evenly, preventing damage to the circuit board and connector due to excessive local force, effectively protecting the circuit board and connector. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0020] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0021] Figure 3 This is a schematic diagram of the rotatable operating component in Embodiment 2;

[0022] Figure 4 This is a structural schematic diagram of Embodiment 3 of the present invention;

[0023] Figure 5 This is a structural schematic diagram of Embodiment 4 of the present utility model.

[0024] In the diagram,

[0025] 1. First circuit board; 11. First insertion part; 12. Constraint hole;

[0026] 2. Second circuit board; 21. Second connector; 22. Threaded mounting hole; 23. Through hole;

[0027] 3. Rotatable operating component; 31. Rotatable operating end; 311. Inner corner groove; 312. Screw hole; 32. Limiting part; 33. Threaded part;

[0028] 4. Fixing base; 41. Threaded end; 42. Screw; 43. Nut;

[0029] 5. Stud; 51. Washer. Detailed Implementation

[0030] To better understand the purpose, technical solution, and technical effects of this utility model, the following description, in conjunction with the accompanying drawings and embodiments, will provide further explanation. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need further definition and explanation in subsequent drawings. It is also stated that the embodiments described below are only for explaining this utility model and are not intended to limit it.

[0031] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there may be an intermediate component.

[0032] The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed when in use, or the orientation or positional relationship in which a person skilled in the art would normally understand it, or the orientation or positional relationship in which the product is usually placed when in use. It is only for the purpose of facilitating the description of this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0033] The terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or specifying the number of technical features. “Several” means two or more, unless otherwise expressly and specifically defined. Example 1

[0034] like Figure 1 As shown, a board-to-board connection structure that is easy to disassemble includes a first circuit board 1 with a first insertion part 11 and a second circuit board 2 with a second insertion part 21. The first insertion part 11 and the second insertion part 21 are elongated male-female insertion structures. The first circuit board 1 has at least one set of rotatable operating components 3 on opposite sides of the first insertion part 11, and the second circuit board 2 has corresponding fixed seats 4 on opposite sides of the second insertion part 21. The rotatable operating component 3 includes a rotating operating end 31, a limiting part 32, and a threaded part 33 that is threadedly engaged with the fixed seat 4. The first circuit board 1 has a constraint hole 12, the diameter of which is larger than the outer diameter of the rotating operating end 31 and smaller than the outer diameter of the limiting part 32, so that the rotating operating end 31 passes through the constraint hole 12 and the limiting part 32 is located below the first circuit board 1. When the rotatable operating component 3 is rotated, the threaded part 33 and the fixed seat 4 are threadedly engaged to generate axial displacement, and the limiting part 32 pushes the first circuit board 1 to separate the first insertion part 11 and the second insertion part 21 along the insertion direction.

[0035] When it is necessary to disassemble the board-to-board connector, the operator only needs to operate the rotating operating end 31 of the rotatable operating component 3 to rotate it in the direction of the threaded engagement. Due to the threaded connection characteristics between the threaded part 33 and the fixed seat 4, the threaded part 33 will generate axial displacement in the threaded hole of the fixed seat 4 as the rotation operation proceeds. During this process, the limiting part 32, because it is constrained below the first circuit board 1 and cannot pass through the constraint hole 12, will push the first circuit board 1 upward with the axial displacement of the threaded part 33. After being pushed by the limiting part 32, the first circuit board 1 will tend to separate along the direction of insertion with the second circuit board 2. Since the rotatable operating component 3 + fixed seat 4 combination structure is provided on the opposite sides of the first insertion part 11 and the second insertion part 21, under the action of the rotatable operating components 3 on both sides, the first insertion part 11 and the second insertion part 21 can be smoothly and gradually separated along the insertion direction, completing the disassembly operation. Compared to the traditional method of manually prying the circuit board, this disassembly method is not only easier and less strenuous, but also ensures that the first circuit board 1 and the second circuit board 2 are subjected to uniform force during the separation process, effectively avoiding damage to the circuit board and connector caused by excessive local force.

[0036] In one specific embodiment, the first circuit board 1 serves as a buckle plate, and the second circuit board 2 serves as a base plate. The first insertion part 11 on the buckle plate is a male connector, and the second insertion part 21 on the base plate is a female connector. A rotatable operating component 3 is provided on each of the left and right sides along the length direction of the male connector, and correspondingly, a fixing seat 4 is provided on each of the left and right sides along the length direction of the female connector.

[0037] In other alternative embodiments, two rotatable operating components 3 are provided on each of the left and right sides along the length direction of the male connector, and the two rotatable operating components 3 on each side are symmetrically arranged with respect to the width direction of the male connector; correspondingly, two fixing seats 4 are provided on each of the left and right sides along the length direction of the female connector.

[0038] In the above embodiments, the rotating operating end 31 of the rotatable operating component 3 at different positions should be operated alternately and evenly on both sides to ensure that the first plug-in part 11 and the second plug-in part 21 are smoothly separated along the plug-in direction, and to avoid the twisting and deformation of the long strip connector structure due to excessive operation on one side.

[0039] In one specific embodiment, the top of the rotating operating end 31 is recessed with an inner corner groove 311. The cross-section of the inner corner groove 311 is a regular polygon with 3 to 8 sides. Taking the inner hexagonal groove as an example, in conjunction with the hexagonal operating lever, first accurately insert one end of the hexagonal operating lever into the inner hexagonal groove at the top of the rotating operating end 31, hold the operating lever with moderate force, and first rotate the rotatable operating component 3 on the left side, slowly rotating the operating lever 2 to 3 times. Then, move the operating lever to the corresponding rotatable operating component 3 on the right side, and rotate it 2 to 3 times as well. After that, return to the left side, and so on, alternating between the two sides. During the operation, constantly observe the separation of the first circuit board 1 and the second circuit board 2, and feel the change in resistance when the operating lever rotates. As the alternating rotation operation continues, the threaded part 33 of the rotatable operating component 3 and the fixed seat 4 continuously undergo relative displacement, and the limiting part 32 gradually pushes the first circuit board 1 upward, so that the first insertion part 11 and the second insertion part 21 gradually separate along the insertion direction.

[0040] In one specific embodiment, the limiting part 32 is a circular boss. Preferably, the diameter of the circular boss is 1 to 5 mm larger than the diameter of the constraint hole 12. The circular boss has a simple and stable structural design. Compared with limiting parts 32 of other shapes, it experiences more uniform force when pushing the first circuit board 1, reducing the problem of local stress concentration. The circular boss is designed with a diameter 1 to 5 mm larger than the diameter of the constraint hole 12, which ensures that the circular boss will not easily pass through the constraint hole 12. During rotational disassembly, the circular boss can stably push the first circuit board 1, and the first insertion part 11 and the second insertion part 21 can be smoothly separated along the insertion direction. It also prevents interference with the connector insertion part due to excessive size difference.

[0041] In one specific embodiment, the threaded portion 33 is an externally threaded rod with a pitch of 0.5 to 1.5 mm, enabling precise control of the movement distance of the first circuit board 1 when rotating the rotatable operating component 3. When disassembling the board-to-board connector, the smaller pitch means that the axial displacement between the externally threaded rod and the fixed seat 4 is smaller with each rotation, thereby achieving a slow and smooth separation of the first insertion portion 11 and the second insertion portion 21, greatly reducing the risk of damaging the circuit board and connector due to excessive speed or force during disassembly.

[0042] In this invention, the fixing seat 4 is an internally threaded sleeve. The axial height of the internally threaded sleeve is greater than or equal to the effective thread length of the threaded portion 33, ensuring that the threaded portion 33 fully engages with the internally threaded sleeve throughout the entire stroke. Sufficient thread engagement length increases the bearing area of ​​the threaded pair, effectively dispersing the axial force generated during disassembly. This is particularly important for high-density board-to-board connectors, as these connectors typically require a large separation force. Increasing the thread engagement length reduces the stress per unit area, minimizing the risk of thread wear and deformation. Furthermore, the sufficient axial height of the internally threaded sleeve provides excellent guidance for the movement of the threaded portion 33: during rotation, the threaded portion 33 moves along the axial direction of the internally threaded sleeve, and the inner wall of the internally threaded sleeve restricts the radial displacement of the threaded portion 33, allowing it to move only in a linear fashion along the axial direction.

[0043] The mounting base 4 and the second circuit board 2 can be fixedly connected by welding or detachably connected.

[0044] In this invention, when installing the first circuit board 1 and the second circuit board 2, the rotatable operating component 3 and the corresponding fixing base 4 are first tightened, then the first insertion part 11 of the first circuit board 1 is aligned with the second insertion part 21 of the second circuit board 2, and then the insertion operation is performed. This insertion process does not rely on the rotatable operating component 3 and the fixing base 4, but relies on the precise docking of the design structure of the first insertion part 11 and the second circuit board 2 itself. Since the relative positions of the constraint hole 12 and the first insertion part 11, the fixing base 4 and the second insertion part 21 are precisely planned in the design stage, after the insertion is completed, the rotating operating end 31 of the rotatable operating component 3 on the fixing base 4 can naturally pass through the constraint hole 12 on the first circuit board 1. Example 2

[0045] like Figure 2 and Figure 3 As shown, to further enhance the stability of the first circuit board 1 on the second circuit board 2, based on Embodiment 1, the inner corner groove 311 of the rotatable operating component 3 is specially designed. Specifically, a screw hole 312 is provided at the bottom of the inner corner groove 311. This screw hole 312 is used to install a stud 5 with a washer 51. The outer diameter of the washer 51 is larger than the diameter of the constraint hole 12. Align the stud 5 with the screw hole 312 at the bottom of the inner corner groove 311, and use a Phillips screwdriver to rotate the stud 5 so that it is screwed into the screw hole 312. After tightening, use the washer 51 to press on the upper surface of the first circuit board 1 to fix the first circuit board 1. In this preferred embodiment, when disassembling the first circuit board 1 and the second circuit board 2, the stud 5 with the washer 51 must be removed first before the rotatable operating component 3 can be disassembled by inserting the hexagonal operating lever into the inner hexagonal groove at the top of the rotating operating end 31. Example 3

[0046] like Figure 4 As shown, in this embodiment, the detachable connection structure between the fixing base 4 and the second circuit board 2 is as follows: the bottom of the fixing base 4 is provided with a threaded end 41, and the second circuit board 2 is provided with a threaded mounting hole 22 corresponding to the position of the fixing base 4. The bottom of the fixing base 4 is threadedly connected to the second circuit board 2. When installing the fixing base 4, hold the fixing base 4 and align the threaded end 41 at its bottom with the corresponding threaded mounting hole 22 on the second circuit board 2. Rotate the fixing base 4 clockwise according to the direction of the thread (generally a right-hand thread) so that the threaded end 41 is gradually screwed into the threaded mounting hole 22 until the connection between the fixing base 4 and the second circuit board 2 gradually becomes tight. Example 4

[0047] like Figure 5 As shown, in this embodiment, the detachable connection structure between the mounting base 4 and the second circuit board 2 is as follows: the second circuit board 2 has a through hole 23 corresponding to the position of the mounting base 4, and a screw 42 passes through the bottom of the mounting base 4. After the screw 42 passes through the through hole 23, it is tightened by a nut 43. When installing the mounting base 4, the mounting base 4 is placed on the second circuit board 2, so that the screw 42 at the bottom of the mounting base 4 is aligned with the corresponding through hole 23 on the second circuit board 2. After the screw 42 passes through the through hole 23, the nut 43 is screwed on the other end of the screw 42. A wrench can be used to tighten the nut 43 according to the specified torque requirements.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A board-to-board connection structure for easy disassembly, comprising a first circuit board having a first insertion portion and a second circuit board having a second insertion portion, wherein the first insertion portion and the second insertion portion are elongated male-female insertion structures, characterized in that, The first circuit board has at least one set of rotatable operating components on opposite sides of the first plug-in portion, and the second circuit board has corresponding fixing seats on opposite sides of the second plug-in portion; The rotatable operating component includes a rotating operating end, a limiting part, and a threaded part that threadedly engages with the fixed seat. The first circuit board is provided with a constraint hole, the diameter of which is larger than the outer diameter of the rotating operating end and smaller than the outer diameter of the limiting part, so that the rotating operating end passes through the constraint hole and the limiting part is located below the first circuit board. When the rotatable operating component is rotated, the threaded part engages with the threaded part of the fixed base to generate axial displacement, and the limiting part pushes the first circuit board to separate the first plug-in part from the second plug-in part along the plug-in direction.

2. The easily detachable plate-to-plate connection structure according to claim 1, characterized in that, The first circuit board serves as a buckle plate, and the second circuit board serves as a base plate. The first insertion part on the buckle plate is a male connector, and the second insertion part on the base plate is a female connector.

3. The easily detachable plate-to-plate connection structure according to claim 1, characterized in that, The top of the rotating operating end is recessed with an inner corner groove, the cross-section of which is a regular polygon with 3 to 8 sides.

4. The easily detachable plate-to-plate connection structure according to claim 3, characterized in that, The bottom of the inner corner groove is provided with a screw hole, which is used to install a stud with a washer to fix the first circuit board.

5. The easily detachable plate-to-plate connection structure according to claim 1, characterized in that, The limiting part is a circular boss.

6. The easily detachable plate-to-plate connection structure according to claim 5, characterized in that, The diameter of the circular boss is 1 to 5 millimeters larger than the diameter of the constraint hole.

7. The easily detachable plate-to-plate connection structure according to claim 1, characterized in that, The threaded part is an externally threaded rod, and the pitch of the externally threaded rod is 0.5 to 1.5 mm.

8. The easily detachable plate-to-plate connection structure according to claim 1, characterized in that, The fixing seat is an internally threaded sleeve, and the axial height of the internally threaded sleeve is greater than or equal to the effective thread length of the threaded portion.

9. The easily detachable plate-to-plate connection structure according to claim 1, characterized in that, The bottom of the fixing base is provided with a threaded end, and the second circuit board is provided with a threaded mounting hole corresponding to the position of the fixing base. The bottom of the fixing base is threadedly connected to the second circuit board.

10. The easily detachable plate-to-plate connection structure according to claim 1, characterized in that, The second circuit board has a through hole corresponding to the position of the fixing seat, and a screw is inserted through the bottom of the fixing seat. The screw passes through the through hole and is tightened by a nut.

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