Detachable expansion card bracket combination structure

Abstract

A detachable expansion card bracket combination structure comprises an expansion card bracket and a butt joint seat detachably combined with the expansion card bracket. The expansion card bracket comprises a bracket body, a first locking rod, a second locking rod and a middle connecting rod which form a four-connecting-rod mechanism. The first lock rod is provided with an arc-shaped groove, and the arc-shaped groove comprises an opening. The butt joint seat comprises a guide structure and a lock column, and the lock column is fixedly arranged relative to the guide structure. In the combination process of the expansion card bracket and the butt-joint seat, the frame body is limited by the guide structure and moves towards the butt-joint seat in an insertion direction, and the lock column enters the arc-shaped groove from the opening. The first locking rod is rotated to enable the locking column to relatively slide in the arc-shaped groove and provide a fulcrum for the first locking rod so as to drive the frame body to move towards the butt joint seat in the insertion direction.

Description

Technical Field

[0001] The invention relates to a detachable expansion card bracket, in particular to a combination structure of the detachable expansion card bracket. Background Art

[0002] Some electronic devices equipped with expansion cards, such as servers, may have multiple expansion cards fixed on a fixed frame. At this time, if one or more expansion cards are to be replaced, they need to be removed from the frame one by one, which is time-consuming and laborious. Expansion cards are usually arranged next to each other, and it is not easy for users to remove them with force. In addition, the space available for users to operate in electronic devices is usually not large, and some types of expansion cards are not light in weight, which will increase the difficulty of the aforementioned removal operation and may even damage the expansion card. In addition, the fixed frame on the device only provides a fixed structure in principle, so the design of the expansion card configuration is also limited. Summary of the invention

[0003] In view of the problems in the prior art, the present invention aims to provide a detachable expansion card bracket coupling structure, which detachably couples an expansion card bracket to a docking seat. The detachable expansion card bracket coupling structure utilizes a connecting rod assembly to facilitate users to fold and assemble the expansion card bracket.

[0004] A detachable expansion card bracket combination structure according to an embodiment of the present invention includes an expansion card bracket and a docking seat. The expansion card bracket includes a frame, a first locking rod, a second locking rod and an intermediate connecting rod. The first locking rod is pivotally connected to the frame, and the first locking rod includes an arc groove, and the arc groove includes an opening. The second locking rod is pivotally connected to the frame. The intermediate connecting rod is pivotally connected to the first locking rod and the second locking rod respectively. The docking seat includes a guide structure and a lock column, and the lock column is fixedly arranged relative to the guide structure. In the process of combining the expansion card bracket with the docking seat, the frame is restricted by the guide structure and moves toward the docking seat in an insertion direction, and the lock column enters the arc groove from the opening, and the first locking rod is rotated so that the lock column slides relatively in the arc groove and provides a fulcrum for the first locking rod to drive the frame to move toward the docking seat in the insertion direction. Thus, under the structural constraint between the lock column and the arc groove of the first lock rod, the user can operate to rotate the first lock rod so that the frame can be smoothly combined with the docking seat. In practice, the user can operate in the reverse direction to smoothly detach the expansion card bracket from the docking seat. In actual application, through the detachable expansion card bracket combination structure, the expansion card set on the expansion card bracket (frame) can be easily detached from the docking seat, which is convenient for replacement and reinstallation to the docking seat.

[0005] One of the first locking rod and the intermediate connecting rod comprises a limiting column, and the other of the first locking rod and the intermediate connecting rod comprises a limiting groove, and the limiting column slides in the limiting groove.

[0006] The intermediate connecting rod includes an arc edge, the docking seat includes a guide column, and the guide column is fixedly arranged relative to the guide structure. During the combination of the expansion card bracket and the docking seat, the guide column slides and contacts the arc edge.

[0007] The intermediate connecting rod includes a straight edge parallel to the insertion direction and connected to the arc edge. After the expansion card bracket is combined with the docking seat, the guide column is located at the connection between the straight edge and the arc edge.

[0008] The arc edge is located in the middle part of the middle connecting rod.

[0009] The first arc-shaped groove includes a closed end, and after the expansion card bracket is combined with the docking seat, the first locking column is located at the closed end.

[0010] The frame, the first locking rod, the intermediate connecting rod and the second locking rod form a parallelogram connecting rod set, and the connecting rod length of the intermediate connecting rod is greater than the connecting rod length of the first locking rod.

[0011] The second locking rod includes a second arc-shaped groove, the first arc-shaped groove includes a second opening, and the docking seat includes a second locking column. The second locking column is fixedly arranged relative to the guide structure. During the combination of the expansion card bracket and the docking seat, the second locking column enters the second arc-shaped groove from the second opening, and the second locking rod is rotated to make the second lock column slide relatively in the second arc-shaped groove so that the second locking rod drives the frame to move toward the docking seat in the insertion direction.

[0012] The frame as a whole extends longitudinally along a length direction, and the first locking rod and the second locking rod are located at two sides of the frame in the length direction.

[0013] The expansion card bracket further includes an operating rod pivotally connected to the first locking rod.

[0014] The guiding structure includes a plurality of restraining columns, and the plurality of restraining columns restrict the frame from moving parallel to the insertion direction.

[0015] The docking seat includes two side plates, which are arranged opposite to each other and form a receiving space therebetween. The guide structure and the first locking column are arranged on at least one of the two side plates. After the expansion card bracket is combined with the docking seat, the frame body is received in the receiving space.

[0016] A transfer card is arranged on the frame, comprising a plurality of expansion card slots and a board-to-board connector, and the board-to-board connector faces the insertion direction.

[0017] The advantages and spirit of the present invention can be further understood through the following detailed description of the invention and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. 1 is a partial exploded schematic diagram of a structural frame according to an embodiment.

[0019] Figure 2 for Figure 1 Schematic diagram of the expansion card bracket and the docking station after being combined.

[0020] Figure 3 for Figure 1 Figure 1 shows a schematic diagram of the expansion card tray.

[0021] Figure 4 for Figure 3 Partially exploded view of the expansion card tray.

[0022] Figure 5 for Figure 3 Side view of the expansion card tray.

[0023] Figure 6 for Figure 1 Schematic diagram of the docking station of the middle structural frame from another perspective.

[0024] Figure 7 A schematic diagram showing the expansion card bracket and the docking station beginning to combine.

[0025] Figure 8 for Figure 7 Diagram showing the expansion card tray moving downward.

[0026] Fig. 9 for Figure 8 A schematic diagram showing that the expansion card bracket continues to move downward to allow the first locking post and the second locking post to enter the first arc-shaped groove and the second arc-shaped groove.

[0027] Fig.10 for Fig. 9 A schematic diagram of rotating the first locking lever and the second locking lever to allow the expansion card bracket to continue to move downward.

[0028] Fig.11 for Fig.10 Schematic diagram of the expansion card bracket and the docking seat being combined.

[0029] Explanation of symbols:

[0030] 1: Structural framework

[0031] 10: Fixed frame

[0032] 12: Expansion card bracket

[0033] 120:Frame

[0034] 120a: Length direction

[0035] 120b: Width direction

[0036] 122: First locking rod

[0037] 122a: connecting rod length

[0038] 1222: first arc groove

[0039] 1222a: First opening

[0040] 1222b: first closed end

[0041] 1224: Limiting slot

[0042] 124: Second locking rod

[0043] 1242: Second arc groove

[0044] 1242a: Second opening

[0045] 1242b: Second closed end

[0046] 126:Intermediate connecting rod

[0047] 126a: connecting rod length

[0048] 1262: Arc edge

[0049] 1262a,1262b: Connection

[0050] 1264,1266: Straight edge

[0051] 1268: Limit column

[0052] 128: Operation lever

[0053] 130: Riser card

[0054] 1302: Expansion card slot

[0055] 1304: Board-to-Board Connector

[0056] 14: Docking station

[0057] 14a: Accommodation space

[0058] 142: Side panel

[0059] 144: Guidance structure

[0060] 146: First lock column

[0061] 148: Second locking column

[0062] 150: Guide column

[0063] 9a: Insertion direction DETAILED DESCRIPTION

[0064] See also Figure 1 , which shows a partial exploded schematic diagram of a structural frame 1 according to an embodiment; wherein the structural frame 1 may be a structure of an electronic device or equipment (for supporting and fixing its electronic components) or a part thereof, and the electronic device or equipment may be a computer, a server, etc. The structural frame 1 includes a fixed frame 10 and an expansion card bracket 12, and the expansion card bracket 12 is removably combined with the fixed frame 10. In this embodiment, the removable combination between the expansion card bracket 12 and the fixed frame 10 is achieved through a removable expansion card bracket combination structure; wherein the removable expansion card bracket combination structure includes the aforementioned expansion card bracket 12 and a docking seat 14 fixedly disposed on the fixed frame 10. On the other hand, in this embodiment, the docking seat 14 is integrated into the structure of the fixed frame 10. The expansion card bracket 12 is combined with the docking seat 14 in an insertion direction 9a (indicated by an arrow in the figure; for ease of explanation, it is also expressed as a downward direction below) or detached from the docking seat 14 in a direction corresponding to the insertion direction 9a. The schematic diagram of the expansion card bracket 12 and the docking seat 14 after being combined is as shown in FIG. Figure 2 shown.

[0065] See also Figures 3 to 5 Among them, Figure 4 In the figure, the screws or similar objects used for the pivotal connection of some components are not shown in the figure to simplify the figure. In this embodiment, the expansion card bracket 12 includes a frame 120, a first locking rod 122, a second locking rod 124 and an intermediate connecting rod 126. The frame 120 as a whole extends longitudinally along a length direction 120a (indicated by a double-headed arrow in the figure), and the size of the frame 120 in the length direction 120a is greater than the size in the width direction 120b (indicated by a double-headed arrow in the figure) (for example, the length-to-width ratio is greater than 4), so the frame 120 as a whole is generally narrow and long; wherein the length direction 120a and the width direction 120b are both perpendicular to the insertion direction 9a. The first locking rod 122 is pivotally connected to the frame 120, the second locking rod 124 is also pivotally connected to the frame 120, and the intermediate connecting rod 126 (for example, through its two ends in the length direction 120a) is pivotally connected to the first locking rod 122 and the second locking rod 124 respectively; the aforementioned pivots are marked with a cross. Figure 5The frame 120, the first locking rod 122, the intermediate connecting rod 126 and the second locking rod 124 form a parallelogram connecting rod set; in other words, the connecting rod lengths of the frame 120 and the intermediate connecting rod 126 are the same, and the connecting rod lengths of the first locking rod 122 and the second locking rod 124 are the same. The connecting rod length is defined as the distance between the pivots, and the connecting rod length 126a of the intermediate connecting rod 126 is greater than the connecting rod length 122a of the first locking rod 122 (for example, greater than five times). In addition, in this embodiment, the intermediate connecting rod 126 is a plate, and the ratio of the connecting rod length 126a of the intermediate connecting rod 126 to the plate thickness is greater than 100.

[0066] The first locking rod 122 includes a first arcuate groove 1222, and the first arcuate groove 1222 includes a first opening 1222a and a first closed end 1222b. The second locking rod 124 includes a second arcuate groove 1242, and the second arcuate groove 1242 includes a second opening 1242a and a second closed end 1242b. In this embodiment, the first locking rod 122 and the second locking rod 124 have substantially the same structural logic, so in this article, the relevant descriptions of the first locking rod 122 and the second locking rod 124 can refer to each other and are not repeated; but the implementation is not limited to this. The first locking rod 122 and the second locking rod 124 are located on both sides of the frame 120 in the length direction 120a. The middle connecting rod 126 includes an arcuate edge 1262, and the arcuate edge 1262 is located in the middle part of the middle connecting rod 126; wherein, the middle part can be defined as the middle equal part of the three equal parts of the middle connecting rod 126 along the length direction 120b. In addition, the intermediate connecting rod 126 further includes two straight edges 1264 and 1266 adjacent to the arc edge 1262. The arc edge 1262 generally presents a downwardly protruding profile, and the straight edges 1264 and 1266 are parallel to the insertion direction 9a (vertically extending) and connected to both ends of the arc edge 1262; wherein the connection 1262a between the straight edge 1264 and the arc edge 1262 is higher than the connection 1262b between the straight edge 1266 and the arc edge 1262.

[0067] In this embodiment, the movement of the first locking bar 122 and the second locking bar 124 can be transmitted to each other through the link mechanism (i.e., the aforementioned parallelogram link set) on the expansion card holder 12. That is, the user can rotate one of the first locking bar 122 and the second locking bar 124 to rotate the other link; the user can also rotate the first locking bar 122 and the second locking bar 124 at the same time. For example, in this embodiment, the expansion card holder 12 further includes an operating rod 128, which is pivotally connected to the first locking bar 122. The operating rod 128 can be freely rotated relative to the first locking bar 122 and protrude from the entire link mechanism, so that the user can grasp and rotate the first locking bar 122. In addition, in practice, if the space tolerance between the frame 120 and the fixed frame 10 allows, the second locking bar 124 can also be pivotally connected to another operating rod (not shown), so that the user can grasp and rotate the first locking bar 122 and the second locking bar 124 at the same time, which helps the user to balance the force applied to the frame 120.

[0068] See also Figure 1 and Figure 6 . The docking seat 14 includes two side plates 142, a guide structure 144, a first lock column 146, a second lock column 148 and a guide column 150. The two side plates 142 are arranged opposite to each other (fixed in the fixed frame 10) and form a receiving space 14a therebetween. The guide structure 144, the first lock column 146, the second lock column 148 and the guide column 150 are arranged on at least one of the two side plates 142, and the first lock column 146, the second lock column 148 and the guide column 150 are fixed relative to the guide structure 144. Among them, the receiving space 14a is used to accommodate the expansion card bracket 12. In this embodiment, the guide structure 144 is implemented with a plurality of restraint columns to structurally restrain the frame 120 of the expansion card bracket 12, thereby limiting the frame 120 from moving toward the docking seat 14 parallel to the insertion direction 9a. The first locking post 146 and the second locking post 148 are used to be structurally constrained with the first locking rod 122 and the second locking rod 124, respectively, to help the expansion card holder 12 to be connected to or separated from the docking seat 14. The guide post 150 is used to abut against the middle connecting rod 126 to help the middle connecting rod 126 to move stably. Figure 2 As shown in FIG. 1 , the frame body 120 of the expansion card bracket 12 is accommodated in the accommodating space 14 a.

[0069] Figures 7 to 11A schematic diagram showing the combination of the expansion card tray 12 and the docking seat 14. In order to facilitate observation of the structural constraints of the docking seat 14 on the expansion card tray 12, the docking seat 14 in the figure only shows the guide structure 144, the first lock column 146, the second lock column 148 and the guide column 150 (represented in the figure by a thick circle with a slash). In addition, in order to simplify the drawing, the structure of each component of the expansion card tray 12 is represented by simple geometric lines in principle, the detailed structure is omitted, and the pivot position of the connecting rod mechanism of the expansion card tray 12 is represented by a cross mark. In the process of combining the expansion card tray 12 with the docking seat 14, the expansion card tray 12 is first moved above the docking seat 14 and the frame 120 (of the expansion card tray 12) is roughly aligned with the guide structure 144 (of the docking seat 14), as shown in FIG. Figure 7 shown.

[0070] See also Figure 8 . Next, the frame 120 is moved in the insertion direction 9a (i.e., moved downward) so that the frame 120 contacts the guide structure 144. The frame 120 is restricted by the guide structure 144 and moves toward the docking seat 14 in the insertion direction 9a; wherein the plurality of restraint posts of the guide structure 144 contact both sides of the frame 120 in the length direction 120a. Before the first locking rod 122 and the second locking rod 124 contact the first locking column 146 and the second locking column 148, the connecting rod mechanism on the expansion card bracket 12 needs to be actuated to make the first opening 1222a of the first arc groove 1222 (on the first locking rod 122) and the second opening 1242a of the second arc groove 1242 (on the second locking rod 124) face downward, so that the first locking column 146 and the second locking column 148 are aligned with the first opening 1222a and the second opening 1242a, respectively.

[0071] See also Fig. 9 Then, the frame 120 is continuously moved in the insertion direction 9a, so that the first locking post 146 and the second locking post 148 enter the first arc groove 1222 and the second arc groove 1242 from the first opening 1222a and the second opening 1242a respectively. The guide post 150 contacts the arc edge 1262; in this embodiment, the guide post 150 is located at the connection 1262b at this time.

[0072] See also Fig.10Then, the first locking rod 122 and the second locking rod 124 are rotated, and the first locking column 146 and the second locking column 148 slide relative to each other in the first arc groove 1222 and the second arc groove 1242 respectively, and provide fulcrums for the first locking rod 122 and the second locking rod 124 respectively to drive the frame 120 to move toward the docking seat 14 in the insertion direction 9a. The user can rotate the first locking rod 122 through the operating rod 128, and the first locking rod 122 drives the second locking rod 124 to rotate through the intermediate connecting rod 126. During this process, the first locking column 146 and the second locking column 148 provide the first locking rod 122 and the second locking rod 124 with reaction forces on the groove walls of the first arc groove 1222 and the second arc groove 1242, respectively, so that the frame 120 continues to move in the insertion direction 9a; on the other hand, the first locking column 146 and the second locking column 148 provide the first locking rod 122 and the second locking rod 124 with force fulcrums, respectively, and under the action of the lever, the user can move the frame 120 downward with less effort. In addition, during this process, the guide column 150 slides in contact with the arc edge 1262 of the intermediate connecting rod 126, which helps to improve the stability of the movement of the intermediate connecting rod 126, so that the first locking rod 122 effectively drives the second locking rod 124 through the intermediate connecting rod 126.

[0073] See also Fig.11 After the expansion card tray 12 is combined with the docking seat 14, the first locking post 146 and the second locking post 148 are respectively located at the first closed end 1222b (of the first arc-shaped groove 1222) and the second closed end 1242b (of the second arc-shaped groove 1242), and the guide post 150 is located at the connection 1262a. Afterwards, if the expansion card tray 12 is to be removed from the docking seat 14 (i.e., the expansion card tray 12 is detached from the docking seat 14), it can be achieved by performing the above-mentioned operation in reverse.

[0074] In addition, in this embodiment, the guide structure 144 is implemented with a plurality of restraint columns, but the implementation is not limited thereto. For example, the guide structure 144 can be implemented with a slide groove, and the slide groove can allow the corresponding structure on the frame 120 to slide therein, and the effect of structurally restricting the frame 120 from moving toward the docking seat 14 parallel to the insertion direction 9a can also be achieved. In addition, in this embodiment, the side panels 142 are located on both sides of the frame 120 in the width direction 120b, so that the side panels 142 have the effect of structurally restraining the frame 120 in the width direction 120b, so the side panels 142 can also logically serve as a guide structure.

[0075] Also, see Figure 4 and Figure 5 In this embodiment, the first locking rod 122 includes a limiting groove 1224 (at Figure 5, the outline of which is blocked by the intermediate connecting rod 126 is shown in dotted lines), the intermediate connecting rod 126 has a limiting column 1268 (for example, implemented as a T-shaped guide column and fixed to the intermediate connecting rod 126 body), and the limiting column 1268 slides in the limiting groove 1224. The structural constraint between the limiting groove 1224 and the limiting column 1268 can improve the stability of the linkage between the first locking rod 122 and the intermediate connecting rod 126. In practice, the limiting groove 1224 can be changed to be set on the intermediate connecting rod 126, and the limiting column 1268 can be changed to be set on the limiting groove 1224. This structural configuration can also improve the stability of the linkage between the first locking rod 122 and the intermediate connecting rod 126. In addition, in this embodiment, there are also limiting grooves and limiting columns between the second locking rod 124 and the intermediate connecting rod 126, which will not be described in detail.

[0076] Also, see Figure 4 and Figure 5 . In this embodiment, an adapter card 130 is disposed on the frame 120, having a plurality of expansion card slots 1302 and a board-to-board connector 1304. The expansion card slot 1302 is for inserting the expansion card carried by the frame 120. The board-to-board connector 1304 faces the insertion direction 9a. In practice, the fixed frame 10 can be fixed with a motherboard. During the process of combining the expansion card bracket 12 with the docking seat 14, the board-to-board connector 1304 is connected to the corresponding connector on the motherboard; similarly, during the process of removing the expansion card bracket 12 from the docking seat 14, the board-to-board connector 1304 is separated from the corresponding connector on the motherboard.

[0077] As described above, the expansion card bracket 12 is designed to be detachable, so the user can use the expansion card bracket 12 to install multiple expansion cards on the fixed frame 10 at one time, or remove them from the fixed frame 10. By utilizing the structural restraint relationship between the locking rods 122 and 124 and the locking columns 146 and 168, the user can easily install and remove the expansion card bracket 12. In addition, in practice, different expansion card configurations can be achieved through multiple expansion card brackets 12 (for example, different adapter cards 130 and corresponding expansion card fixing structures are configured in these multiple expansion card brackets 12), and these expansion card brackets 12 are still connected to the docking seat 14 and the motherboard (fixed on the fixed frame 10) through the same electromechanical interface, which helps to increase the design flexibility of the motherboard for the expansion card configuration.

[0078] In addition, in one embodiment of the present invention, the detachable expansion card bracket combination structure of the present invention can be applied to a server. This server can be used for artificial intelligence (AI) computing, edge computing, and can also be used as a 5G server, cloud server, or Internet of Vehicles server.

[0079] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the claims of the present invention should fall within the scope of the present invention.

Claims

1. A detachable expansion card bracket combination structure, characterized in that: Include: An expansion card tray, including: A frame; A first locking rod is pivotally connected to the frame, wherein the first locking rod comprises a first arc-shaped groove, and the first arc-shaped groove comprises a first opening; a second locking rod pivotally connected to the frame; and an intermediate connecting rod, pivotally connected to the first locking rod and the second locking rod respectively; and A docking seat, comprising a guide structure and a first locking column, wherein the first locking column is fixedly arranged relative to the guide structure; In which, during the combination of the expansion card bracket and the docking seat, the frame is restricted by the guide structure and moves toward the docking seat in an insertion direction, the first lock column enters the first arcuate groove from the first opening, and the first lock rod is rotated to allow the first lock column to slide relatively in the first arcuate groove and provide a fulcrum for the first lock rod to drive the frame to move toward the docking seat in the insertion direction.

2. The detachable expansion card bracket combination structure as claimed in claim 1, characterized in that: One of the first locking rod and the intermediate connecting rod comprises a limiting column, and the other of the first locking rod and the intermediate connecting rod comprises a limiting groove, and the limiting column slides in the limiting groove.

3. The detachable expansion card bracket combination structure as claimed in claim 1, characterized in that: The intermediate connecting rod includes an arc edge, the docking seat includes a guide column, and the guide column is fixedly arranged relative to the guide structure. During the combination of the expansion card bracket and the docking seat, the guide column slides and contacts the arc edge.

4. The detachable expansion card bracket combination structure as claimed in claim 3, characterized in that: The intermediate connecting rod includes a straight edge parallel to the insertion direction and connected to the arc edge. After the expansion card bracket is combined with the docking seat, the guide column is located at the connection between the straight edge and the arc edge.

5. The detachable expansion card bracket combination structure as claimed in claim 3, characterized in that: The arc edge is located in the middle part of the middle connecting rod.

6. The detachable expansion card bracket combination structure as claimed in claim 1, characterized in that: The first arc-shaped groove includes a closed end, and after the expansion card bracket is combined with the docking seat, the first locking column is located at the closed end.

7. The detachable expansion card bracket combination structure as claimed in claim 1, characterized in that: The frame, the first locking rod, the intermediate connecting rod and the second locking rod form a parallelogram connecting rod set, and the connecting rod length of the intermediate connecting rod is greater than the connecting rod length of the first locking rod.

8. The detachable expansion card bracket combination structure as claimed in claim 1, characterized in that: The second locking rod includes a second arc-shaped groove, the first arc-shaped groove includes a second opening, and the docking seat includes a second locking column. The second locking column is fixedly arranged relative to the guide structure. During the combination of the expansion card bracket and the docking seat, the second locking column enters the second arc-shaped groove from the second opening, and the second locking rod is rotated to make the second lock column slide relatively in the second arc-shaped groove so that the second locking rod drives the frame to move toward the docking seat in the insertion direction.

9. The detachable expansion card bracket combination structure as claimed in claim 8, characterized in that: The frame as a whole extends longitudinally along a length direction, and the first locking rod and the second locking rod are located at two sides of the frame in the length direction.

10. The detachable expansion card bracket combination structure as claimed in claim 1, characterized in that: The expansion card bracket further includes an operating rod pivotally connected to the first locking rod.

11. The detachable expansion card bracket combination structure according to claim 1, wherein: The guiding structure includes a plurality of restraining columns, and the plurality of restraining columns restrict the frame from moving parallel to the insertion direction.

12. The detachable expansion card bracket combination structure as claimed in claim 1, characterized in that: The docking seat includes two side plates, which are arranged opposite to each other and form a receiving space therebetween. The guide structure and the first locking column are arranged on at least one of the two side plates. After the expansion card bracket is combined with the docking seat, the frame body is received in the receiving space.

13. The detachable expansion card bracket combination structure as claimed in claim 1, characterized in that: A transfer card is arranged on the frame, comprising a plurality of expansion card slots and a board-to-board connector, and the board-to-board connector faces the insertion direction.

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