Connecting fixer and mainboard mounting assembly

Abstract

The utility model relates to the technical field of connecting pieces, and provides a connecting fixator and a mainboard mounting assembly. The connecting fixator comprises a fixing base and an eccentric fixing piece; the bottom end of the fixed base is provided with a fixed part, and the top end is provided with a butt-joint part; the eccentric fixing piece comprises a blocking part and a clamping part which are eccentrically arranged in the vertical direction; the eccentric fixing piece can be installed and connected with the butt joint part through the clamping part in the vertical direction, and the eccentric fixing piece and the butt joint part can form a first clamping and blocking opening in the horizontal direction. The clamping and blocking part is provided with a second clamping and blocking opening in the horizontal direction. The first clamping and blocking opening and the second clamping and blocking opening can clamp and block the side portion of a part to be fixed. The two solid state disk laminations with different lengths can be clamped, limited and fixed through the first clamping and blocking opening and the second clamping and blocking opening, and the problem that the solid state disk laminations with different lengths cannot be installed on a mainboard from a single side through a conventional screw is effectively solved.

Description

Technical Field

[0001] This disclosure relates to the field of connector technology, and more particularly to a connector fastener and motherboard mounting assembly. Background Technology

[0002] In current technology, the installation and fixing methods for solid-state drives (SSDs) or wireless network cards on computer circuit boards all involve using screws and clips to secure the SSD to one side of the motherboard. However, as the number of components on computer motherboards increases and the size of motherboards decreases, the utilization of space on the motherboard becomes crucial. To make full use of the space on the motherboard, multiple SSDs or multiple wireless network cards need to be stacked.

[0003] However, the existing method of fixing one side with screws can only be applied to the scenario of stacking solid-state drives of the same length. When stacking solid-state drives of different lengths, the conventional method of fixing one side with screws cannot be applied.

[0004] In view of this, there is an urgent need in the market for a new type of connector to solve the problem that conventional screws cannot be fixed from one side when solid-state drives of different lengths are stacked and installed on a computer motherboard. Utility Model Content

[0005] This disclosure provides a connector and motherboard mounting assembly to address the problem in the prior art where conventional screws cannot be fixed from one side when solid-state drives of different lengths are stacked and mounted on a computer motherboard.

[0006] The connecting fastener provided in this embodiment includes a fixed base and an eccentric fastener;

[0007] The fixed base has a fixing part at the bottom and a docking part at the top;

[0008] The eccentric fastener includes a locking part and a locking part that are eccentrically arranged in the vertical direction;

[0009] The eccentric fastener can be installed and connected to the mating part in the vertical direction through the snap-fit ​​part, and the two can form a first clamping stop in the horizontal direction.

[0010] The clamping part is provided with a second clamping slot in the horizontal direction;

[0011] The first clamping stop and the second clamping stop can respectively clamp and stop the side of the part to be fixed.

[0012] In one embodiment, the eccentric fastener further includes an eccentric plate extending in a horizontal direction;

[0013] The blocking part is disposed on the top side of one end of the eccentric plate, and the locking part is disposed on the bottom side of the other end of the eccentric plate;

[0014] The second clamping stop is located on the side of the stop portion opposite to the latching portion, and faces the same direction as the first clamping stop.

[0015] In one embodiment, the locking part includes a cap that is detachably disposed on the top side of one end of the eccentric plate.

[0016] A notch is also provided on the top side of one end of the eccentric plate.

[0017] The cap can cover the notch and together with the notch, form the second clamping stop.

[0018] In one embodiment, the cap further includes an insertion head facing the eccentric plate.

[0019] The cap can be inserted and fixed into the insertion hole of the eccentric plate through the insertion head.

[0020] In one embodiment, a connecting member is further provided on the top side of the eccentric plate:

[0021] The other end of the connector is fixedly connected to the cap.

[0022] In one embodiment, the fixed base has a through hole extending vertically through it;

[0023] The snap-fit ​​part includes a plug post that protrudes downward in the vertical direction, and the end of the plug post is also provided with an outwardly protruding barb snap head.

[0024] When the plug is inserted into the through hole, the barbed clip is locked into the bottom wall of the through hole.

[0025] In one embodiment, a notch is provided at the top wall of the through hole;

[0026] The snap-fit ​​portion also includes a snap-fit ​​post located above the plug post and having a diameter larger than the plug post;

[0027] When the plug is inserted into the through hole, the snap-fit ​​pin covers the top wall of the through hole and together with the recessed portion forms the first clamping stop.

[0028] In one embodiment, the peripheral wall of the plug-in post is further provided with an outwardly protruding anti-rotation boss;

[0029] An anti-rotation recess is provided at the top wall of the through hole;

[0030] When the plug is inserted into the through hole, the anti-rotation boss is correspondingly inserted into the anti-rotation recess.

[0031] In one embodiment, the fixing base can be welded and fixed to the mounting holes in the circuit board via the fixing part;

[0032] The fixing part includes a welded stepped shaft section, and a pre-installed positioning platform is provided on the periphery of the welded stepped shaft section.

[0033] In addition, this disclosure also provides a motherboard mounting assembly, which includes a motherboard body, mounting elements and the above-mentioned connector;

[0034] The fixed base is welded and fixed to the motherboard body through the fixed part;

[0035] The eccentric fasteners respectively clamp and fix the two mounting elements to the motherboard body through the first clamping slot and the second clamping slot.

[0036] The technical solution provided in this disclosure has the following advantages compared with the prior art:

[0037] The connection fastener provided in this embodiment of the present disclosure, by setting the locking part and the locking part of the eccentric fastener eccentrically in the vertical direction, can make the first clamping locking port and the second clamping locking port have a certain misalignment distance difference in the horizontal direction. In this way, the first clamping locking port and the second clamping locking port can respectively lock and limit the two stacked solid-state drives of different lengths, thereby effectively solving the problem that conventional screws cannot install stacked solid-state drives of different lengths onto the motherboard from one side.

[0038] In addition, the motherboard mounting assembly provided in this embodiment includes the above-mentioned roll connector fastener, which can achieve the same beneficial effects, and will not be described again here.

[0039] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0040] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. Several embodiments of this disclosure are illustrated in the drawings by way of example and not limitation, in which:

[0041] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0042] Figure 1 A perspective view of the connecting fastener provided in an embodiment of this disclosure is shown;

[0043] Figure 2 An exploded view of the connection fastener provided in an embodiment of this disclosure is shown;

[0044] Figure 3 A structural diagram of the motherboard mounting assembly provided in an embodiment of this disclosure is shown.

[0045] Explanation of the numbers in the diagram: 1. Fixed base; 11. Fixing part; 111. Pre-installed positioning platform; 12. Connecting part; 121. First clamping stop; 13. Through hole; 131. Recessed part; 132. Anti-rotation recess;

[0046] 2. Eccentric fastener; 21. Clamping part; 211. Second clamping clamping port; 212. Cover cap; 212a. Insertion head; 22. Snap-fit ​​part; 221. Insertion post; 221a. Barbed snap-fit ​​head; 221b. Anti-rotation boss; 222. Snap-fit ​​post; 23. Eccentric plate; 231. Notch part; 232. Connector;

[0047] 3. Motherboard body; 4. Mounting components. Detailed Implementation

[0048] To make the objectives, features, and advantages of this disclosure more apparent and understandable, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0049] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0050] Combination Figure 1 and Figure 2 As shown, this embodiment of the present disclosure provides a connecting fastener, which includes a fixed base 1 and an eccentric fastener 2; the fixed base 1 has a fixing part 11 at the bottom end and a docking part 12 at the top end; the eccentric fastener 2 includes a blocking part 21 and a connecting part 22 that are eccentrically arranged in the vertical direction; wherein, the eccentric fastener 2 can be installed and connected to the docking part 12 in the vertical direction through the connecting part 22, and the two can form a first clamping blocking opening 121 in the horizontal direction; the blocking part 21 has a second clamping blocking opening 211 in the horizontal direction; the first clamping blocking opening 121 and the second clamping blocking opening 211 can respectively clamp and block the side of the component to be fastened.

[0051] The connection fastener provided in this embodiment can be specifically, but not limited to, used for the stacked and fixed installation of multiple solid-state drives or wireless network cards in a computer motherboard. The usage process will be described using the stacked installation of two solid-state drives of different lengths as an example.

[0052] In practical use, the fixing part 11 at the bottom of the fixing base 1 is first fixedly connected to the motherboard. Then, the snap-fit ​​part 22 in the eccentric fixing part 2 is vertically connected to the mating part 12 at the top of the fixing base 1. At this time, the snap-fit ​​part 22 and the mating part 12 can form a first clamping stop 121 in the horizontal direction. In this way, the side of the solid-state drive located on the lower layer can be clamped and fixed in the horizontal direction through the first clamping stop 121. Combined with the mounting bracket in the motherboard, the lower solid-state drive can be fixed together. The clamping clips on both sides of the upper solid-state drive effectively secure the installation of the lower solid-state drive. In addition, since the eccentric fixing component 2 also includes a clamping part 21 that is eccentrically positioned vertically to the clamping part 22, and the clamping part 21 has a second clamping slot 211 in the horizontal direction, the side of the upper solid-state drive can be clamped and secured through the second clamping slot 211. Combined with the mounting bracket in the motherboard, the clamping clips on both sides of the upper solid-state drive can be secured together, thereby effectively securing the upper solid-state drive.

[0053] Furthermore, since the locking part 21 and the locking part 22 are eccentrically arranged in the vertical direction, that is, the second clamping locking port 211 and the first clamping locking port 121 do not correspond in the vertical direction and have a certain misalignment distance difference in the horizontal direction, even if two solid-state drives of different lengths are stacked and installed, they can be simultaneously clamped and fixed synchronously by the connecting fixer provided in this embodiment of the present disclosure. This effectively solves the problem in the prior art that conventional screws cannot fix the locking part from one side when solid-state drives of different lengths are stacked and installed on a computer motherboard.

[0054] Of course, when two solid-state drives of the same length are stacked and installed on a computer motherboard, they can be installed with a certain offset along their length direction, so that the left and right sides of the two solid-state drives of the same length can be offset. In this way, the left sides of the two solid-state drives can be limited and blocked by the two mounting brackets in the motherboard, and the right sides of the two solid-state drives can be limited and blocked by the first clamping bracket 121 and the second clamping bracket 211 in the connecting retainer provided in this embodiment.

[0055] In summary, the connection fastener provided in this embodiment of the present disclosure, by eccentrically setting the locking part 21 and the locking part 22 in the eccentric fastener 2 in the vertical direction, allows the first clamping locking port 121 and the second clamping locking port 211 to have a certain misalignment distance difference in the horizontal direction. In this way, the first clamping locking port 121 and the second clamping locking port 211 can respectively lock and limit the two stacked solid-state drives of different lengths, thereby effectively solving the problem that conventional screws cannot install stacked solid-state drives of different lengths onto the motherboard from one side.

[0056] In one embodiment, the eccentric fastener 2 further includes an eccentric plate 23 extending in a horizontal direction; a blocking part 21 is disposed on the top side of one end of the eccentric plate 23, and a locking part 22 is disposed on the bottom side of the other end of the eccentric plate 23; a second clamping blocking opening 211 is opened on the side of the blocking part 21 opposite to the locking part 22, and faces the same direction as the first clamping blocking opening 121.

[0057] Specifically, in combination Figure 1 and Figure 2 In further detail, an eccentric plate 23 extending horizontally is provided in the eccentric fastener 2, and a blocking part 21 is provided on the top side of one end of the eccentric plate 23, and a locking part 22 is provided on the bottom side of the other end of the eccentric plate 23. In this way, the blocking part 21 and the locking part 22 can protrude in opposite directions from the eccentric plate 23 in the vertical direction, and the misalignment distance formed in the horizontal direction is equal to the length of the eccentric plate 23.

[0058] In addition, the second clamping slot 211 is opened on the side of the clamping part 21 that is opposite to the clamping part 22, and faces the same direction as the first clamping slot 121. In this way, the first clamping slot 121 and the second clamping slot 211 can simultaneously clamp two solid-state drives of different lengths in a direction perpendicular to the side of the solid-state drive.

[0059] The specific arrangement of the above-mentioned eccentric fastener 2 has the advantages of simple structure, ensuring the horizontal distance between the blocking part 21 and the connecting part 22, and clamping two solid-state drives in the same direction.

[0060] In one embodiment, the clamping part 21 includes a cover cap 212 detachably disposed on the top side of one end of the eccentric plate 23; a notch 231 is also provided on the top side of one end of the eccentric plate 23; the cover cap 212 can cover the notch 231 and together with the notch 231 form a second clamping clamping opening 211.

[0061] Specifically, in combination Figure 2In further detail, the locking part 21 is specifically configured to include a cover cap 212 detachably disposed on the top side of one end of the eccentric plate 23, and a notch 231 is correspondingly provided on the top side of one end of the eccentric plate 23. The notch 231 can be specifically configured to be semi-circular in shape. When the cover cap 212 presses on the notch 231, the cover cap 212 and the notch 231 can close together to form a second clamping locking port 211 similar to a semi-cylindrical shape. Thus, when locking the side of the solid-state drive, the second clamping locking port 211 can be pressed and installed on the solid-state drive along the side direction, thereby achieving the limitation of the vertical and horizontal directions of one side of the solid-state drive.

[0062] The specific arrangement of the aforementioned locking part 2 has the advantages of simple structure and effective locking and limiting of the side of the solid-state drive.

[0063] In one embodiment, the cap 212 further includes an insertion head 212a facing the eccentric plate 23; the cap 212 can be inserted and fixed into the insertion hole of the eccentric plate 23 by the insertion head 212a.

[0064] Specifically, in combination Figure 1 and Figure 2 In further detail, the cap 212 is provided with an insertion head 212a facing the eccentric plate 23, and a corresponding insertion hole is opened on the top side of one end of the eccentric plate 23. In this way, the cap 212 can be installed and fixed by inserting the insertion head 212a into the insertion hole, thereby forming a stable second clamping stop 211.

[0065] Furthermore, the aforementioned insertion head 212a can be configured as a plug with external threads and an insertion hole with internal threads, so that the two can be reliably fixed by screwing; or, the aforementioned insertion head 212a can be configured as a plug with a certain degree of elasticity and the actual diameter of the insertion hole is slightly smaller than the diameter of the insertion head 212a, so that the two can be reliably fixed by interference fit insertion.

[0066] The specific arrangement of the insertion head 212a and the insertion hole described above has the advantages of simple structure and reliable installation of the cap 212.

[0067] In one embodiment, a connector 232 is also provided on the top side of the eccentric plate 23: the other end of the connector 232 is fixedly connected to the cap 212.

[0068] Specifically, in combination Figure 1 and Figure 2In further detail, the connector 232 can be specifically, but not limited to, a plastic strip, plastic band, or plastic rope. In this way, when it is necessary to temporarily separate the second clamping stop 211 from the solid-state drive side, the cover cap 212 can be temporarily removed from the top side of the eccentric plate 23. At this time, the connector 232 can play a connecting role, temporarily connecting the cover cap 212 to the eccentric plate 23, thus avoiding the problem of the cover cap 212 accidentally falling off and being lost after disassembly.

[0069] In one embodiment, the fixed base 1 has a through hole 13 extending vertically; the snap-fit ​​part 22 includes a plug post 221 protruding downward in the vertical direction, and the end of the plug post 221 is also provided with an outwardly protruding barb head 221a; when the plug post 221 is inserted into the through hole 13, the barb head 221a is correspondingly locked into the bottom end wall of the through hole 13.

[0070] Specifically, in combination Figure 2 In further detail, a through hole 13 is formed in the fixed base 1, extending vertically through the base. The snap-fit ​​part 22 is provided with a plug post 221 that protrudes downward in the vertical direction. The end of the plug post 221 is also provided with an outwardly protruding barb hook 221a. When the eccentric fastener 2 is connected to the mating part 12 in the fixed base 1 through the snap-fit ​​part 22, the plug post 221 can be inserted into the through hole 13 and locked into the bottom wall of the through hole 13 by the barb hook 221a. In this way, the self-locking installation connection between the eccentric fastener 2 and the fixed base 1 can be realized.

[0071] The specific arrangement of the through hole 13 and the plug post 221 has the advantages of simple structure and the ability to quickly and reliably install the eccentric fastener 2 and the fixed base 1.

[0072] In one embodiment, a recess 131 is provided at the top wall of the through hole 13; the snap-fit ​​part 22 also includes a snap-fit ​​post 222 located above the insertion post 221 and having a diameter larger than the insertion post 221; when the insertion post 221 is inserted into the through hole 13, the snap-fit ​​post 222 covers and presses against the top wall of the through hole 13, and together with the recess 131, forms a first clamping stop 121.

[0073] Specifically, in combination Figure 2In further detail, a recess 131 is provided at the top wall of the through hole 13. The recess 131 can also be specifically designed as a semi-circle. The snap-fit ​​part 22 also includes a snap-fit ​​post 222 located above the insertion post 221 and with a diameter larger than the insertion post 221. Thus, when the eccentric fixing member 2 is installed and connected to the mating part 12 in the fixing base 1 through the snap-fit ​​part 22, the lower end face of the snap-fit ​​post 222 can correspondingly cover the recess 131, and together with the recess 131, form the first clamping stop 121. In this way, the first clamping stop 121 is pressed and installed on the solid-state drive along the side direction, thereby realizing the limitation of the solid-state drive in the vertical and horizontal directions on one side.

[0074] The specific arrangement of the aforementioned recess 131 and locking post 222 has the beneficial effects of simple structure and effective locking and limiting of the side of solid-state drive.

[0075] In one embodiment, the peripheral wall of the plug post 221 is also provided with an outwardly protruding anti-rotation boss 221b; the top hole wall of the through hole 13 is correspondingly provided with an anti-rotation recess 132; when the plug post 221 is inserted into the through hole 13, the anti-rotation boss 221b is correspondingly inserted into the anti-rotation recess 132.

[0076] Specifically, in combination Figure 2 In further detail, an outwardly protruding anti-rotation boss 221b is provided in the peripheral wall of the plug 221, and an anti-rotation recess 132 is correspondingly provided at the top wall of the through hole 13. The anti-rotation boss 221b and the anti-rotation recess 132 are designed to be complementary in shape and size. In this way, when the plug 221 is inserted into the through hole 13, the anti-rotation boss 221b can be inserted into the anti-rotation recess 132, thereby realizing the anti-rotation installation of the plug 221 and the through hole 13, ensuring the unique installation orientation of the eccentric fastener 2 in the fixed base 1, so that the first clamping stop 121 and the second clamping stop 221 can always maintain the same orientation, ensuring that they can be respectively clamped and limited to the sides of the two stacked solid-state drives.

[0077] The specific arrangement of the anti-rotation boss 221b and the anti-rotation recess 132 described above has the beneficial effects of simple structure and ensuring anti-rotation installation of the plug post 221 and the through hole 13.

[0078] In one embodiment, the fixed base 1 can be fixed to the mounting holes in the circuit board by welding the fixing part 11; the fixing part 11 includes a welding stepped shaft section, and a pre-installed positioning platform 111 is provided on the periphery of the welding stepped shaft section.

[0079] Specifically, in combination Figure 2In further detail, the fixed base 1 is welded and fixed to the mounting hole in the circuit board via the fixing part 11. The fixing part 11 has a welding stepped shaft section, and a pre-installed positioning platform 111 is provided on the periphery of the welding stepped shaft section. In this way, during the pre-installation positioning of the fixed base 1 before welding, the pre-installed positioning platform 111 in the welding stepped shaft section can be matched with the mounting hole in the circuit board to ensure that the fixed base 1 has a unique installation orientation in the mounting hole of the circuit board, thus ensuring the accuracy of the welding position of the fixed base 1.

[0080] In addition, this disclosure also provides a motherboard mounting assembly, which includes a motherboard body 3, mounting elements 4 and the above-mentioned connector; wherein, the fixing base 1 is welded and fixed to the motherboard body 3 through the fixing part 11; the eccentric fixing member 2 clamps and fixes the two mounting elements 4 to the motherboard body 3 in a stacked manner through the first clamping slot 121 and the second clamping slot 211 respectively.

[0081] Specifically, in combination Figure 3 In further detail, this motherboard mounting assembly can be used in laptops, tablets, and all-in-one computers, and the mounting component 4 can be used to fix hard drives, wireless network cards, etc. The motherboard body 3 is provided with a mounting bracket to fix the other side of the mounting component 4.

[0082] Since the motherboard mounting assembly includes the aforementioned connectors and retainers, it can achieve all its beneficial effects, which will not be elaborated further here.

[0083] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means two or more, unless otherwise explicitly specified.

[0084] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A connecting fastener, characterized in that, include: A fixed base (1) is provided with a fixing part (11) at the bottom and a docking part (12) at the top; The eccentric fastener (2) includes a locking part (21) and a locking part (22) that are eccentrically arranged in the vertical direction; The eccentric fastener (2) can be installed and connected to the mating part (12) in the vertical direction through the snap-fit ​​part (22), and the two can form a first clamping stop (121) in the horizontal direction; The clamping part (21) is provided with a second clamping clamping slot (211) in the horizontal direction; The first clamping stop (121) and the second clamping stop (211) can respectively clamp and stop the side of the part to be fixed.

2. The connecting fastener according to claim 1, characterized in that, The eccentric fastener (2) also includes an eccentric plate (23) extending in the horizontal direction; The blocking part (21) is disposed on the top side of one end of the eccentric plate (23), and the locking part (22) is disposed on the bottom side of the other end of the eccentric plate (23); The second clamping stop (211) is located on the side of the stop portion (21) opposite to the latching portion (22) and faces the same direction as the first clamping stop (121).

3. The connecting fastener according to claim 2, characterized in that, The blocking part (21) includes a cap (212) that is detachably disposed on the top side of one end of the eccentric plate (23); The eccentric plate (23) also has a notch (231) on the top side of one end; The cap (212) can cover the notch (231) and together with the notch (231) form the second clamping stop (211).

4. The connecting fastener according to claim 3, characterized in that, The cap (212) also includes an insertion head (212a) facing the eccentric plate (23); The cap (212) can be inserted and fixed into the insertion hole of the eccentric plate (23) by the insertion head (212a).

5. The connecting fastener according to claim 3, characterized in that, A connector (232) is also provided on the top side of the eccentric plate (23): The other end of the connector (232) is fixedly connected to the cap (212).

6. The connecting fastener according to claim 1, characterized in that, The fixed base (1) has a through hole (13) that runs vertically through it; The snap-fit ​​part (22) includes a plug post (221) that protrudes downward in the vertical direction, and the end of the plug post (221) is also provided with an outwardly protruding barb snap head (221a). When the plug (221) is inserted into the through hole (13), the barbed head (221a) is locked into the bottom wall of the through hole (13).

7. The connecting fastener according to claim 6, characterized in that, A notch (131) is provided at the top wall of the through hole (13); The snap-fit ​​portion (22) further includes a snap-fit ​​post (222) located above the plug post (221) and having a diameter larger than the plug post (221); When the insertion post (221) is inserted into the through hole (13), the snap-fit ​​post (222) covers the top hole wall of the through hole (13) and together with the recess (131) forms the first clamping stop (121).

8. The connecting fastener according to claim 6, characterized in that, The peripheral wall of the plug post (221) is also provided with an outwardly protruding anti-rotation boss (221b); An anti-rotation recess (132) is correspondingly provided at the top hole wall of the through hole (13); When the plug post (221) is inserted into the through hole (13), the anti-rotation boss (221b) is correspondingly inserted into the anti-rotation recess (132).

9. The connecting fastener according to claim 1, characterized in that, The fixed base (1) can be welded and fixed to the mounting holes in the circuit board through the fixing part (11); The fixing part (11) includes a welded stepped shaft section, and a pre-installed positioning table (111) is provided on the periphery of the welded stepped shaft section.

10. A motherboard mounting assembly, characterized in that, Includes a motherboard body (3), mounting elements (4), and a connector retainer as described in any one of claims 1 to 9; The fixed base (1) is welded and fixed to the main body (3) through the fixed part (11); The eccentric fastener (2) clamps and fixes the two mounting elements (4) to the motherboard body (3) by means of the first clamping slot (121) and the second clamping slot (211).

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