CN217523063U

CN217523063U - Movable expansion card support and electronic device

Info

Publication number: CN217523063U
Application number: CN202221244661.5U
Authority: CN
Inventors: 王磊; 吕玉清; 齐浩宇
Original assignee: Cooler Master Technology Inc
Current assignee: Cooler Master Technology Inc
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-09-30
Anticipated expiration: 2032-05-23
Also published as: TWM634105U

Abstract

A movable expansion card support and an electronic device are provided, wherein the movable expansion card support is suitable for installing an expansion card on a mounting rack. The movable expansion card support comprises a support frame and a sliding frame. The support frame can be movably arranged on the mounting frame along a front-back direction. The sliding frame can slide relative to the supporting frame along a left-right direction and is used for installing the expansion card, and the left-right direction is orthogonal to the front-back direction.

Description

Movable expansion card support and electronic device

Technical Field

The present invention relates to an expansion card support and an electronic device, and more particularly, to a movable expansion card support and an electronic device.

Background

With the development and progress of electronic technology, the development trend of electronic devices is moving toward strong computing function, fast speed and small size, in other words, the electronic devices need to have competitiveness, and besides fast speed and strong performance, the electronic devices need to have the advantages of lightness, thinness, miniaturization, continuous expansion, and the like.

With the reduction of the volume of the electronic device, the internal space of the electronic device is also limited, so that when the access device or the expansion interface card is to be installed or replaced, the internal space available for operation is further limited. In a conventional electronic device, a fixed access device or a PCIe card (peripheral component interconnect express) is usually connected and locked by a fixing bracket, and then the fixing bracket is connected and locked with a housing of the electronic device, so that the access device or the PCIe card can be stably disposed inside the electronic device. In the conventional method, screws are directly used for connection and locking.

However, the process of locking screws requires aligning the screws with the screw holes and then locking them, which requires a lot of labor and time, and the screws are locked in a narrow space. If the screw is accidentally dropped, it is difficult to pick up the dropped screw, and if the screw is dropped and lost during the locking process, or even if the screw and the screw hole are not of the same size, or if the force is applied too much during the locking process, the corresponding screw hole is damaged …, etc., the subsequent operations of setting and replacing the access device or the PCIe card cannot be performed smoothly.

SUMMERY OF THE UTILITY MODEL

The present invention provides a movable expansion card support and an electronic device, which can quickly and easily mount an expansion card without using a tool.

The movable expansion card holder disclosed in an embodiment of the present invention is suitable for installing an expansion card on a mounting rack. The movable expansion card support comprises a support frame and a sliding frame. The support frame can be movably arranged on the mounting frame along a front-back direction. The sliding frame can slide relative to the supporting frame along a left-right direction and is used for installing the expansion card, and the left-right direction is orthogonal to the front-back direction.

In an embodiment of the present invention, the supporting frame includes a side plate portion, a frame portion and two guide rail portions, the frame portion protrudes from one side of the side plate portion and surrounds an opening, the opening communicates with the threading slot, the two guide rail portions of the supporting frame protrude from two opposite sides of the frame portion and are slidably disposed on the two guide rail portions of the mounting frame respectively, so that the supporting frame can slide along the front-back direction relative to the mounting frame.

In an embodiment of the present invention, the support frame further includes two sliding rail portions, the two sliding rail portions are connected to two opposite sides of the side plate portion, the sliding frame includes a carrying plate portion, a side leaning portion, and two sliding rail portions of a surrounding frame portion, the side leaning portion is connected to one side of the carrying plate portion, two adjacent sides of the surrounding frame portion are respectively connected to the carrying plate portion and the side leaning portion, the two sliding rail portions of the sliding frame can be slidably disposed on the two sliding rail portions of the support frame, so that the sliding frame can slide relative to the support frame along the left-right direction, and the side plate portion of the support frame is provided with the expansion card through the carrying plate portion of the sliding frame.

In an embodiment of the present invention, the lateral leaning portion further includes at least one fastening component having at least one slot, the at least one fastening component includes a pressing member, a shaft member and an operating member, the pressing member is rotatably disposed on the lateral board portion through the shaft member, and is partially disposed in the at least one slot of the lateral leaning portion, the operating member is connected to the shaft member and is configured to drive the pressing member to abut against the wall surface of the at least one slot formed in the lateral leaning portion.

In an embodiment of the present invention, the pressing member includes a connecting portion and an elastic pressing portion, the connecting portion of the pressing member is rotatably disposed on the side plate portion through the shaft, and the elastic pressing portion is connected to the connecting portion and driven by the connecting portion to abut against the side abutting portion to form the at least one grooved wall.

In an embodiment of the present invention, the opposite sides of the frame portion have a first expansion card assembly structure and a second expansion card assembly structure, and the first expansion card assembly structure and the second expansion card assembly structure are respectively used for assembling a blocking piece of the expansion card.

In an embodiment of the present invention, the signal adapter card further includes a position-yielding opening formed in the side leaning portion, and the signal adapter card is disposed on the carrier portion and partially located in the position-yielding opening.

The electronic device disclosed in another embodiment of the present invention includes a housing, a main board, a mounting frame, a movable expansion card support and an expansion card. The casing has a plate. The mainboard is arranged on the shell. The mounting bracket is installed in the plate of casing. The movable expansion card support comprises a support frame and a sliding frame. The support frame can be movably arranged on the mounting frame along a front-back direction. The carriage can follow a left and right direction and slide relative to the support frame. The expansion card is arranged on the support frame and is inserted into the mainboard through a row of wires.

In an embodiment of the present invention, the supporting frame includes a side plate portion, a frame portion and two guide rail portions, the frame portion protrudes from one side of the side plate portion and surrounds an opening, the opening communicates with the threading slot, the two guide rail portions of the supporting frame protrude from two opposite sides of the frame portion and are slidably disposed on the two guide rail portions of the mounting frame respectively, so that the supporting frame can slide along the front-back direction relative to the mounting frame, and the side plate portion is used for the expansion card to be disposed.

In an embodiment of the present invention, the movable expansion card support further includes a sliding frame, the support frame further includes two sliding rail portions, the two sliding rail portions are connected to two opposite sides of the side plate portion, the sliding frame includes a carrying plate portion, a side leaning portion, and two sliding rail portions of a surrounding frame portion, the side leaning portion is connected to one side of the carrying plate portion, two adjacent sides of the surrounding frame portion are respectively connected to the carrying plate portion and the side leaning portion, the two sliding rail portions of the sliding frame can be slidably disposed on the two sliding rail portions of the support frame, so that the sliding frame can slide along the left and right direction relative to the support frame, and the side plate portion of the support frame is provided with the expansion card through the carrying plate portion of the sliding frame.

In an embodiment of the present invention, the movable expansion card holder further includes at least one fastening component, the side leaning portion has at least one slot, the at least one fastening component includes a pressing component, a shaft component and an operating component, the pressing component is rotatably disposed on the side board portion through the shaft component, and is partially disposed in the at least one slot of the side leaning portion, the operating component is connected to the shaft component, and is configured to drive the pressing component to lean against the wall surface forming the at least one slot in the side leaning portion.

In an embodiment of the present invention, the pressing member includes an assembling portion and an elastic pressing portion, the assembling portion of the pressing member is rotatably disposed on the side plate portion through the shaft member, the elastic pressing portion is connected to the assembling portion and driven by the assembling portion to press against the side plate portion to form the at least one grooved wall.

In an embodiment of the present invention, the expansion card includes a substrate and a blocking piece, the blocking piece is connected to one side of the substrate, two opposite sides of the frame portion have a first expansion card assembly structure and a second expansion card assembly structure, and the first expansion card assembly structure and the second expansion card assembly structure are respectively used for assembling the blocking piece of the expansion card.

In an embodiment of the present invention, the movable expansion card holder further includes a signal adapter, the side leaning portion has a yielding opening, the signal adapter is disposed on the carrier portion and partially located at the yielding opening, and the substrate of the expansion card is inserted into one side of the signal adapter.

According to the movable expansion card bracket and the electronic device of the embodiment, through the movable and detachable relation of the support frame of the movable expansion card bracket, a user can firstly install the expansion card on the support frame outside the casing, so that the expansion card is fixed on the support frame through screws in a wider space, then the expansion card is moved to a required position through simple operations such as sliding and the like, and the position of the expansion card is fixed through the tool-free and convenient-to-operate hand-rotating screws and the fastening components. Therefore, the user can quickly and easily complete the installation of the expansion card without using tools.

The above description of the present invention and the following description of the embodiments are provided to demonstrate and explain the principles of the present invention and to provide further explanation of the scope of the present invention.

Drawings

Fig. 1 is an exploded view of an electronic device according to a first embodiment of the present invention;

FIG. 2 is a perspective view of the removable expansion card holder of FIG. 1;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is an exploded view of the alternative view of FIG. 3;

fig. 5 to 8 are schematic installation views of the electronic device of fig. 1.

[ notation ] to show

1: electronic device

10: casing (CN)

11: plate member

12: guide groove

13: screw-on part

20: main machine board

22: expansion slot

30: movable expansion card support

40: expansion card

41: substrate

42: baffle plate

50: flat cable

60: signal line

100: mounting rack

1111: first side

1112: second surface

1113: threading groove

112: guide rail part

200: supporting frame

210: side plate part

220: frame part

221: opening(s)

230: guide rail part

240: slide rail part

250: hand-turning screw

300: sliding rack

310: carrying plate part

320: side leaning part

321: slotting

322: let a mouthful

330: surrounding frame part

331: first expansion card assembling structure

332: second expansion card assembling structure

340: slide rail part

400: fastening assembly

410: pressing piece

411: assembling part

412: elastic pressing part

420: shaft member

430: operating element

500: signal switching card

D2: front-back direction

D3: left and right direction

A: direction of rotation

Detailed Description

Please refer to fig. 1-2. Fig. 1 is an exploded view of an electronic device 1 according to a first embodiment of the present invention. Fig. 2 is a perspective view of the removable expansion card holder 30 of fig. 1.

The electronic device 1 of the present embodiment includes a housing 10, a main board 20, a mounting frame 100, a movable expansion card holder 30 and an expansion card 40. The housing 10 has a plate 11. The board 11 is located at the back of the casing 10, for example, and the board 11 may further have a hollow structure for the IO port or the expansion card 40. The motherboard 20 is provided with electronic components such as a central processing unit, a memory, an expansion slot, a power slot, etc., and is mounted on the housing 10. The mounting bracket 100 is disposed on the plate 11 of the housing 10 by a coupling means such as welding or screwing. In detail, the mounting bracket 100 includes a back plate portion 111 and two guide rail portions 112. The back plate portion 111 has a first surface 1111, a second surface 1112 and a threading slot 1113. The first face 1111 faces the board 11. The second face 1112 faces away from the first face 1111. The threading slot 1113 penetrates the first surface 1111 and the second surface 1112, and is used for the signal line 60 such as HDMI to pass through. The two guide rail portions 112 are connected to opposite sides of the back plate portion 111, respectively.

Please refer to fig. 3 and fig. 4 additionally. Fig. 3 is an exploded view of fig. 2. Fig. 4 is an exploded view of fig. 3 from another perspective. The mobile expansion card holder 30 includes a support frame 200 and a sliding frame 300. The supporting frame 200 is movably disposed on the mounting frame 100 along a front-back direction D2. In detail, the supporting frame 200 includes a side plate 210, a frame 220 and two guide rails 230. The frame portion 220 protrudes from one side of the side plate portion 210 and surrounds an opening 221. The opening 221 communicates with the threading groove 1113. The two guide rails 230 of the supporting frame 200 protrude from the two opposite sides of the frame portion 220, and are slidably disposed on the two guide rails 112 of the mounting rack 100, respectively, so that the supporting frame 200 can slide along the front-back direction D2 relative to the mounting rack 100. In this embodiment, the removable expansion card holder 30 may further include a hand screw 250, and the supporting frame 200 is fixed to the mounting frame 100 through the hand screw 250.

In the present embodiment, the supporting frame 200 further includes two sliding rail portions 240. The two slide rail portions 240 are connected to opposite sides of the side plate portion 210. The sliding rack 300 includes a board portion 310, a side leaning portion 320, a surrounding frame portion 330 and two sliding track portions 340. The side rest portion 320 is connected to one side of the plate portion 310. The adjacent two sides of the surrounding frame 330 are connected to the plate-carrying portion 310 and the side-leaning portion 320, respectively. The two sliding rail portions 340 of the sliding rack 300 are slidably disposed on the two sliding rail portions 240 of the supporting rack 200, so that the sliding rack 300 can slide along the left-right direction D3 relative to the supporting rack 200. The left-right direction D3 is substantially orthogonal to the front-rear direction D2. What is called substantially orthogonal is to cover both orthogonal and near orthogonal situations.

In the present embodiment, the side support portion 320 has two slots 321. The removable expansion card holder 30 may further comprise two fastening members 400. Each fastening assembly 400 includes a pressing member 410, a shaft member 420 and an operating member 430. The pressing member 410 is rotatably disposed on the side plate 210 through the shaft member 420 and partially disposed in the slot 321 of the side leaning portion 320. The operating member 430 is connected to the shaft member 420 and is used to drive the pressing member 410 against the wall surface of the side support portion 320, which forms the slot 321. In addition, the pressing member 410 is made of plastic and is manufactured by injection molding, for example. The pressing member 410 includes an assembling portion 411 and an elastic pressing portion 412. The coupling portion 411 of the pressing member 410 is rotatably provided to the side plate portion 210 through the shaft member 420. The elastic pressing portion 412 is connected to the assembling portion 411 and is driven by the assembling portion 411 to abut against the wall surface of the side abutting portion 320, which forms the slot 321, so as to improve the fixing effect of the pressing member 410 on the sliding frame 300.

In the present embodiment, the assembling portion 411 and the elastic pressing portion 412 are integrally formed, but not limited thereto. In other embodiments, the assembly portion and the elastic pressing portion may also be formed by combining two independent members.

In the present embodiment, the number of the fastening elements 400 and the slots 321 is two, but not limited thereto. In other embodiments, the number of fastening components and slots can be changed to be single or more than three.

The expansion card 40 is, for example, a display card, a PCIE interface card or other expansion cards 40, and is mounted on the support frame 200 or the sliding frame 300. That is, the expansion card 40 may be disposed on the side portion 210 of the support frame 200 or disposed on the side portion 210 of the support frame 200 through the carrier portion 310 of the sliding frame 300.

In the present embodiment, the expansion card 40 is mounted on the sliding rack 300 as an example. The expansion card 40 includes a substrate 41 and a stop piece 42, wherein the stop piece 42 is connected to one side of the substrate 41. The sliding frame 300 has a first expansion card assembly structure 331 and a second expansion card assembly structure 332 on opposite sides of the frame portion 330. The first expansion card assembly structure 331 and the second expansion card assembly structure 332 are, for example, screw holes and slots respectively for assembling the blocking pieces 42 of the expansion cards 40. That is, one end of the blocking piece 42 is fixed to the first expansion card assembling structure 331 of the surrounding frame portion 330, for example, by screws, and the other end of the blocking piece 42 is fixed to the second expansion card assembling structure 332 of the surrounding frame portion 330, for example, by plugging.

In this embodiment, the removable expansion card holder 30 may further include a signal adapter card 500. The side support portion 320 has a relief opening 322. The signal adapter card 500 is disposed on the carrier portion 310 and partially disposed at the docking port 322. The substrate 41 of the expansion card 40 is plugged into one side of the signal adapter card 500, and the other side of the signal adapter card 500 is connected to the motherboard 20 through the flat cable 50, for example.

In the embodiment, the thickness of the material of the support frame 200 and the sliding frame 300 is greater than 1 mm, for example, to improve the structural strength of the support frame 200 and the sliding frame 300 and improve the supporting effect of the support frame 200 and the sliding frame 300 on the expansion card 40. Therefore, the expansion card 40 can be effectively prevented from drooping.

In the present embodiment, the movable expansion card holder 30 passes through the support frame 200 and the sliding frame 300, and the expansion card 40 is disposed on the support frame 200 through the sliding frame 300, so that the expansion card 40 achieves the effect of biaxial movement, thereby improving the installation convenience of the expansion card.

In the embodiment, the supporting frame 200 of the movable expansion card bracket 30 is mounted on the plate 11 of the casing 10 through the mounting frame 100, but not limited thereto. In other embodiments, a structure combined with the plate may be added to the supporting frame of the removable expansion card holder, so that the supporting frame of the removable expansion card holder is directly mounted on the plate of the housing.

Please refer to fig. 5 to 8. Fig. 5 to 8 are schematic installation diagrams of the electronic device 1 in fig. 1. As shown in fig. 5, the two guide rail portions 230 of the supporting frame 200 are slidably disposed on the two guide rail portions 112 of the mounting block 100, respectively, so that the supporting frame 200 can slide relative to the mounting block 100 along the front-back direction D2. The expansion card 40 is first placed on the sliding frame 300, the substrate 41 of the expansion card 40 is electrically inserted into the signal adapter 500 disposed on the sliding frame 300, one end of the blocking piece 42 of the expansion card 40 is inserted into the second expansion card assembly structure 332 of the surrounding frame portion 330, and the other end of the blocking piece 42 of the expansion card 40 is locked to the first expansion card assembly structure 331 of the surrounding frame portion 330 of the sliding frame 300. In addition, the flat cable 50 is electrically inserted into the other side of the signal adapter card 500 and the signal line such as HDMI is inserted into the expansion card 40.

Next, as shown in fig. 6, the flat cable 50 is inserted into the expansion slot 22 of the motherboard 20 by bypassing the bottom of the support frame 200, and the two sliding rail portions 340 of the sliding rack 300 are slidably disposed on the two sliding rail portions 240 of the support frame 200, so that the sliding rack 300 can slide relative to the support frame 200 along the left-right direction D3. In addition, as shown in fig. 7, in the process of inserting the flat cable 50 into the expansion slot 22 of the motherboard 20, the user can adjust the positions of the support frame 200 and the sliding rack 300 as required for the convenience of installation. That is, the user can move the support frame 200 in the front-back direction D2 or move the sliding rack 300 in the left-right direction D3 according to the requirement. As shown in fig. 8, after the user inserts the flat cable 50 into the expansion slot 22 of the motherboard 20 and moves the expansion card 40 to a desired position, the user can rotate the screw 250 by turning the hand to fix the relative position between the support frame 200 and the mounting frame 100, and can pull the operating element 430 of the fastening assembly 400 to drive the pressing element 410 to rotate along the direction a, and press the elastic pressing part 412 of the pressing element 410 against the wall surface of the side leaning part 320 forming the slot 321, so as to fix the relative position between the sliding frame 300 and the support frame 200.

As can be seen from the above operation, the user can mount the expansion card 40 on the sliding frame 300 outside the housing 10, fix the expansion card 40 on the sliding frame 300 through screws in a wide space, move the expansion card 40 to a desired position through a simple operation such as sliding, and fix the position of the expansion card 40 through the hand-turning screws 250 and the fastening members 400 which are tool-free and easy to operate. In this way, the user can install the expansion card 40 quickly and easily without using tools.

According to the movable expansion card bracket and the electronic device of the embodiment, through the movable and detachable relationship between the support frame and the sliding frame of the movable expansion card bracket, a user can firstly install the expansion card on the sliding frame outside the casing, fix the expansion card on the sliding frame through screws in a wider space, then move the expansion card to a required position through simple operations such as sliding and the like, and fix the position of the expansion card through the tool-free and convenient-to-operate hand-turning screws and the fastening components. Therefore, the user can quickly and easily complete the installation of the expansion card without using tools.

In addition, the mobile expansion card holder of the above embodiment can be compatible with a chassis supporting the M-ATX/ATX specification.

Although the present invention has been described with reference to the above embodiments, it should be understood that the scope of the present invention is not limited to the above embodiments, and other changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention.

Claims

1. A movable expansion card support is characterized in that the movable expansion card support is suitable for installing an expansion card on a mounting rack, and comprises:

a supporting frame which can be movably arranged on the mounting frame along a front-back direction; and

and the sliding frame can slide relative to the supporting frame along a left-right direction and is used for installing the expansion card, and the left-right direction is orthogonal to the front-back direction.

2. The removable expansion card holder as claimed in claim 1, wherein the holder comprises a side plate, a frame portion and two guide portions, the frame portion protrudes from one side of the side plate and surrounds an opening, the opening is connected to the threading slot, the two guide portions of the holder protrude from two opposite sides of the frame portion and are slidably disposed on the two guide portions of the holder respectively, so that the holder can slide along the front-back direction relative to the holder.

3. The movable expansion card holder as claimed in claim 2, wherein the supporting frame further comprises two sliding rail portions connected to opposite sides of the side plate portion, the sliding frame comprises a carrying plate portion, a side leaning portion, and a surrounding frame portion, the side leaning portion is connected to one side of the carrying plate portion, two adjacent sides of the surrounding frame portion are respectively connected to the carrying plate portion and the side leaning portion, the two sliding rail portions of the sliding frame are slidably disposed on the two sliding rail portions of the supporting frame so that the sliding frame can slide relative to the supporting frame along the left-right direction, and the side plate portion of the supporting frame is disposed with the expansion card through the carrying plate portion of the sliding frame.

4. The removable expansion card holder of claim 3, further comprising at least one fastening component, wherein the side support portion has at least one slot, the at least one fastening component comprises a pressing member, a shaft member and an operating member, the pressing member is rotatably disposed on the side plate portion via the shaft member and partially disposed in the at least one slot of the side support portion, and the operating member is connected to the shaft member and configured to drive the pressing member to abut against a wall surface of the side support portion forming the at least one slot.

5. The removable expansion card holder of claim 4, wherein the pressing member comprises a connecting portion and an elastic pressing portion, the connecting portion of the pressing member is rotatably disposed on the side plate portion via the shaft member, the elastic pressing portion is connected to the connecting portion and is driven by the connecting portion to abut against the wall surface of the side abutting portion forming the at least one slot.

6. The movable expansion card bracket of claim 3, wherein the frame portion has a first expansion card assembly structure and a second expansion card assembly structure on opposite sides thereof, and the first expansion card assembly structure and the second expansion card assembly structure are respectively used for assembling a blocking piece of the expansion card.

7. The removable expansion card holder of claim 4, further comprising a signal adapter card, wherein the side leaning portion has a position-giving opening, and the signal adapter card is disposed on the carrying plate portion and partially located at the position-giving opening.

8. An electronic device, comprising:

a housing having a plate;

a main board installed on the casing;

the mounting frame is arranged on the plate of the machine shell;

a removable expansion card holder, comprising:

a support frame which can be movably arranged on the mounting frame along a front-back direction; and

the sliding frame can slide relative to the supporting frame along a left-right direction; and

an expansion card installed on the support frame and inserted into the motherboard through a flat cable.

9. The electronic device as claimed in claim 8, wherein the supporting frame comprises a side plate portion, a frame portion and two guiding portions, the frame portion protrudes from one side of the side plate portion and surrounds an opening, the opening is connected to the threading slot, the two guiding portions of the supporting frame protrude from two opposite sides of the frame portion and are slidably disposed on the two guiding portions of the mounting rack respectively, so that the supporting frame can slide relative to the mounting rack along the front-back direction, and the side plate portion is used for the expansion card to be disposed.

10. The electronic device of claim 9, wherein the movable expansion card holder further comprises a sliding frame, the supporting frame further comprises two sliding rail portions connected to opposite sides of the side plate portion, the sliding frame comprises a supporting plate portion, a side leaning portion, and a surrounding frame portion, the side leaning portion is connected to one side of the supporting plate portion, two adjacent sides of the surrounding frame portion are respectively connected to the supporting plate portion and the side leaning portion, the two sliding rail portions of the sliding frame are slidably disposed on the two sliding rail portions of the supporting frame, so that the sliding frame can slide along the left-right direction relative to the supporting frame, and the side plate portion of the supporting frame is disposed with the expansion card through the supporting plate portion of the sliding frame.

11. The electronic device of claim 10, wherein the removable expansion card holder further comprises at least one fastening component, the side support portion has at least one slot, the at least one fastening component comprises a pressing member, a shaft member and an operating member, the pressing member is rotatably disposed on the side plate portion through the shaft member and partially disposed in the at least one slot of the side support portion, and the operating member is connected to the shaft member and configured to drive the pressing member to abut against a wall surface of the side support portion forming the at least one slot.

12. The electronic device according to claim 11, wherein the pressing member includes an assembling portion and an elastic pressing portion, the assembling portion of the pressing member is rotatably disposed on the side plate portion through the shaft member, the elastic pressing portion is connected to the assembling portion and is driven by the assembling portion to abut against a wall surface of the side abutting portion forming the at least one slot.

13. The electronic device of claim 10, wherein the expansion card comprises a substrate and a blocking piece, the blocking piece is connected to one side of the substrate, two opposite sides of the frame enclosure portion have a first expansion card assembly structure and a second expansion card assembly structure, and the first expansion card assembly structure and the second expansion card assembly structure are respectively used for assembling the blocking piece of the expansion card.

14. The electronic device of claim 13, wherein the removable expansion card holder further comprises a signal adapter card, the side support portion has a position-giving opening, the signal adapter card is disposed on the carrier portion and partially disposed at the position-giving opening, and the substrate of the expansion card is inserted into one side of the signal adapter card.