TW201440613A - Electronic device - Google Patents

Abstract

An electronic device comprises a locking opening, an expansion card, a fastener retaining on the expansion card, and a latch. The locking opening has a first limiting wall and a second limiting wall opposite to each other. The fastener has a latching end accommodated in the locking opening. The latching end has a first surface and a second surface opposite to each other and a side edge connecting the first surface and second surface. The latch has a first side toward the first limiting wall and a second side toward the second limiting wall. The latch has a projecting portion on the first side. When the latch is at a latching position, the latch is between the first limiting wall and the second limiting wall and presses the second surface of the latching end, so as to make the latching end clipped between the first limiting wall and the first side and make the projecting portion press the side edge of the latching end. When the latch is at a releasing position, the latch leaves the latching end.

Description

Electronic device

The present invention relates to an electronic device, and more particularly to an electronic device having a card firmware for securing an expansion card.

With the evolution of electronic devices, users have more and more functional requirements for electronic devices. When the user wants to add functions to the original electronic device, an expansion card is usually installed in the electronic device to expand the function of the electronic device.

The conventional expansion card is usually installed by inserting the electrical connection pins of the expansion card into the slots of the substrate, and then screwing the expansion card to the casing of the electronic device. When you want to replace the expansion card, you must remove the screw and then remove the expansion card to replace the new expansion card. However, the locking screw must use a tool such as a screwdriver to lock the expansion card to the case with a screw or remove the screw from the case. However, when the user does not have a screwdriver on the hand, the expansion card cannot be used to expand the electronic device. Even if the user has a screwdriver at the hand, it takes a lot of time to rotate the screw. The user must also spend time aligning the screw and the screw hole of the case to lock the screw to the case. The screw is easy to fall during the locking process, and the user has to spend more time looking for the screw. Such an expansion card mounting structure and method is inconvenient and time consuming for the user.

In view of the above problems, an object of the present invention is to provide an electronic device in which a fixing member of an expansion card is fixed by multi-position and multi-directional pressing of a card fastener, and the fixing effect is good, and the expansion card can be quickly replaced without using other tools. .

The invention provides an electronic device comprising a fastening frame, an expansion card, a fixing component and a card firmware. The fastening frame has a first limiting wall and a second limiting wall facing each other. The fasteners are held on the expansion card. The fixing member is provided with a fastening end received in the fixing frame opening. The fastening end is provided with an opposite first surface and a second surface and a first side connecting the first surface and the second surface edge. The first side is located between the second side and the first limiting wall. The card fastener can move back and forth between a fastening position and a release position with respect to the fastening frame opening. The card fastener has a first side corresponding to the first limiting wall and a second side corresponding to the second limiting wall. The first side of the fastener is provided with a protrusion. When the card fastener is in the clamping position, the card fastener is between the first limiting wall and the second limiting wall and is pressed against the second surface of the clamping end so that the clamping end is clamped to the first limiting wall and Between the first sides of the fasteners, and the protrusions are pressed against the first side edges of the fastening ends. When the card firmware is in the release position, the card firmware leaves the carding end.

The electronic device further includes a substrate, a substrate slot disposed on the substrate, a vertical plate perpendicular to the substrate, and a vertical plate slot disposed on the vertical plate. The expansion card is parallel to the substrate. The expansion card is inserted into the vertical plate slot in a direction perpendicular to the vertical plate and electrically connected to the vertical plate through the vertical plate slot. The vertical plate is inserted into the substrate slot along a mounting direction perpendicular to the substrate and electrically connected to the substrate through the substrate slot. When the fastener is in the clamping position, the fastener is pressed against the second surface of the fastening end in a direction perpendicular to the vertical plate, and the protruding portion is pressed against the first side edge in the mounting direction of the vertical plate.

The fastening end is further provided with a second side edge connecting the first side and the second side and opposite to the first side edge. The first limiting wall is provided with an abutting portion extending into the fastening frame opening. When the card fastener is in the clamping position, the locking end is clamped between the abutting portion of the first limiting wall and the protruding portion of the fastener, and the abutting portion is pressed against the second side edge.

The card fastener is pivotally connected to the first limiting wall and the second limiting wall, and the card fastener is rotated relative to the fixing frame opening to enter and exit the fixing frame opening.

The first side of the fastener is provided with a first side wall, and the second side of the fastener is provided with a second side wall, and the protrusion protrudes from the first side wall. The first side wall is provided with an elongated two-port. A portion between the two ports on the first side wall forms a resilient portion. The elastic portion is provided with a protrusion for pressing the second side of the fastening end.

The fastener is further provided with a bottom wall connecting the first side wall and the second side wall. One end of the elastic portion is connected to the bottom wall, and the opposite end of the elastic portion is connected to the protruding portion. When the card firmware is in the latched position, the bottom wall is parallel to the expansion card.

The electronic device further includes a chassis. The chassis includes two side walls, a front wall and a rear wall. The expansion card is received in a receiving space surrounded by the two side walls, the front wall and the rear wall. The fastening frame is formed on the rear wall. The fixing member is also provided with an insertion end. The insertion end and the fastening end are respectively located at opposite ends of the fixing member. The insertion end is inserted into a fixing groove of the rear wall.

The rear wall has an opening. The expansion card is further equipped with a connector corresponding to one of the openings. The exposed connector is open.

The fixing piece is of a long strip type. The fastening end is formed by bending one end of the fixing member. The first limit wall and the second limit wall are perpendicular to the expansion card.

According to the electronic device of the present invention, when the card fastener is in the locking position, the card fastener can clamp the fixing end of the expansion card between the limiting wall and the card fastener by pressing the second side of the fastening end, and The protruding portion of the fastener is pressed against the side edge of the fastening end, thereby achieving the pressing of different positions and different directions of the fastening end, so as to enhance the effect of holding the fixing member to firmly hold the expansion card in the chassis. When the expansion card is to be removed, the card firmware can be moved from the clamping position to the release position to allow the card firmware to leave the fixture, so that the expansion card can be quickly replaced without additional tools.

Another object of the present invention is to provide an electronic device in which a fixing member of an expansion card is fixed by multi-region and multi-directional pressing of a card fastener, and the fixing members of the two expansion cards are pressed by the opposite sides of the card fastener. Fixed to the same framed frame.

The present invention provides an electronic device including a card frame, a first expansion card, a second expansion card adjacent to and parallel to the first expansion card, and a first fixing member held on the first expansion card. A second fixing member and a card firmware are fixed on the second expansion card. The fastening frame has a first limiting wall and a second limiting wall facing each other. The first fixing member is provided with a first fastening end received in the fastening frame opening. The first fastening end is provided with an opposite first surface and a second surface and a side edge connecting the first surface of the first fastening end and the second surface of the first fastening end. The first surface of the first fastening end is located between the second surface of the first fastening end and the first limiting wall. The second fixing member is provided with a second fastening end received in the fastening frame opening. The second fastening end is provided with an opposite first surface and a second surface, and a side edge connecting the first surface of the second fastening end and the second surface of the second fastening end. The first surface of the second fastening end is located between the second surface of the second fastening end and the second limiting wall. The card fastener can move back and forth between a fastening position and a release position with respect to the fastening frame opening. The card fastener has a first side corresponding to the first limiting wall and a second side corresponding to the second limiting wall. The first side of the fastener is provided with a first protrusion, and the second side of the fastener is provided with a second protrusion. When the card firmware is in the clamping position, the card firmware is between the first limiting wall and the second limiting wall. The first side of the fastener is pressed against the second side of the first fastening end such that the first fastening end is clamped between the first limiting wall and the first side of the fastener, and the first protrusion is pressed against The side edge of the first stuck end. The second side of the fastener is pressed against the second fastening end The second surface is such that the second fastening end is clamped between the second limiting wall and the second side of the fastener, and the second protrusion is pressed against the side edge of the second fastening end. When the card firmware is in the release position, the card firmware leaves the first carding end and the second carding end.

According to the electronic device of the present invention, when the card fastener is in the locking position, the card fastener can clamp the fixing end of the expansion card between the limiting wall and the card fastener by pressing the second side of the fastening end, and The protruding portion of the fastener is pressed against the side edge of the fastening end, thereby achieving the pressing of different positions and different directions of the fastening end, so as to enhance the effect of holding the fixing member to firmly hold the expansion card in the chassis. At the same time, the fixing members of the two expansion cards are fixed to the same fixing frame by the pressing action on the opposite sides of the fastener. .

The above description of the present invention and the following description of the embodiments of the present invention are intended to illustrate and explain the spirit and principles of the invention.

1‧‧‧Electronic device

10‧‧‧Chassis

10a‧‧‧Card frame

100‧‧‧ accommodating space

11‧‧‧ side wall

12‧‧‧ Back wall

121‧‧‧ openings

20‧‧‧Substrate

21‧‧‧First substrate slot

22‧‧‧Second substrate slot

31‧‧‧First vertical board

32‧‧‧Second board

41‧‧‧First vertical board slot

42‧‧‧Second vertical board slot

51‧‧‧First expansion card

511‧‧‧First fixture

512‧‧‧first card end

512a, 522a‧‧‧ first side

512b, 522b‧‧‧ second side

512c, 522c‧‧‧ first side edge

512d, 522d‧‧‧ second side

513‧‧‧First connector

514‧‧‧Insert

52‧‧‧Second expansion card

521‧‧‧Second fixture

522‧‧‧Second card

523‧‧‧Second connector

60‧‧‧ card firmware

601‧‧‧ first side

602‧‧‧ second side

603‧‧‧First side wall

603a, 604a‧‧‧ mouth

604‧‧‧ second side wall

605‧‧‧First Elastic Department

606‧‧‧Second elastic part

61‧‧‧First limit wall

611‧‧‧First Abutment

62‧‧‧Second limit wall

621‧‧‧Second Abutment

632a‧‧‧First protrusion

632b‧‧‧second protrusion

633a‧‧‧first bulge

633b‧‧‧second bulge

64‧‧‧ bottom wall

81‧‧‧fixed slot

V‧‧‧Vertical direction

M1, M2‧‧‧ direction

S‧‧‧Installation direction

FIG. 1A is a perspective view of an electronic device in accordance with an embodiment of the present invention.

FIG. 1B is a perspective exploded view of the electronic device of FIG. 1A.

FIG. 1C is a cross-sectional view showing the electronic device of FIG. 1A.

FIG. 1D is a perspective view showing the fastener of the electronic device of FIG. 1A.

FIG. 1E is a perspective view showing another perspective of the card firmware of FIG. 1D.

FIG. 2 is a perspective view showing another perspective of the electronic device of FIG. 1A.

The detailed features and advantages of the present invention are set forth in the Detailed Description of the Detailed Description of the Detailed Description of the <RTIgt; The related objects and advantages of the present invention are readily understood by those of ordinary skill in the art. The following examples are intended to describe the present invention in further detail, but are not intended to limit the scope of the invention.

1A, 1B, and 1C, FIG. 1A is a perspective view of an electronic device 1 according to an embodiment of the present invention, and FIG. 1B is a perspective exploded view of the electronic device 1 of FIG. FIG. 1C is a cross-sectional view showing the electronic device 1 of FIG. 1A. In the embodiment, the electronic device 1 can be a server, but the invention is not limited thereto. The electronic device 1 of the present invention includes a chassis 10, a fastening frame opening 10a, a substrate 20, a first substrate slot 21 and a second substrate slot 22 disposed on the substrate 20, and perpendicular to the substrate 20. a first vertical plate 31 and a second vertical plate 32, a first vertical plate slot 41 and a second vertical plate slot 42 respectively disposed on the first vertical plate 31 and the second vertical plate 32, and a first vertical plate An expansion card 51, a second expansion card 52 adjacent to and parallel to the first expansion card 51, a first fixing member 511, a second fixing member 521, and a fastening member 60.

The fastening frame opening 10a has a first limiting wall 61 and a second limiting wall 62 facing each other. The first limiting wall 61 and the second limiting wall 62 are perpendicular to the first expansion card 51 and the second expansion card 52. The fastener 60 is pivotally connected to the first limiting wall 61 and the second limiting wall 62, so that the fastener 60 is rotated relative to the fixing frame opening 10a to enter and exit the fixing frame opening 10a.

The first fixing member 511 and the second fixing member 521 are respectively provided with a first fastening end 512 and a second fastening end 522 which are received in a sheet shape and received in the fastening frame opening 10a. The first fixing member 511 and the second fixing member 521 are both elongated. The first fastening end 512 is bent from one end of the first fixing member 511. The second fastening end 522 is bent from one end of the second fixing member 521 . The first fixing member 511 is fixed on the first expansion card 51. The second fixing member 521 is fixed on the second expansion card 52. The first fastening end 512 and the second fastening end 522 are respectively provided with opposite first faces 512a, 522a and a second faces 512b, 522b. The first fastening end 512 is provided with a first side edge 512c connecting the first surface 512a and the second surface 512b. The second fastening end 522 is provided with a first side edge 522c connecting the first surface 522a and the second surface 522b. The first surface 512a of the first fastening end 512 is located between the second surface 512b of the first fastening end 512 and the first limiting wall 61. The first surface 522a of the second fastening end 522 is located between the second surface 522b of the second fastening end 522 and the second limiting wall 62.

The fastener 60 is reciprocally movable relative to the fastening frame opening 10a in a locked position and a released position. The fastener 60 has a first side 601 corresponding to the first limiting wall 61 and a second side 602 corresponding to the second limiting wall 62. The first side 601 of the fastener 60 is provided with a first protrusion 632a. The second side 602 of the fastener 60 is provided with a second protrusion 632b. When the fastener 60 is in the locked position, the fastener 60 is between the first limiting wall 61 and the second limiting wall 62, and the fastener 60 is pressed against the second surface 512b of the first fastening end 512 to make the first A card holder 512 is clamped between the first limiting wall 61 and the first side 601 of the fastener 60, and the first protrusion 632a is pressed against the first side edge 512c of the first fastening end 512. At the same time, the fastener 60 is pressed against the second surface 522b of the second fastening end 522. So that the second fastening end 522 is clamped between the second limiting wall 62 and the second side 602 of the fastener 60, and the second protrusion 632b is pressed against the first side edge of the second fastening end 522. 522c. When the fastener 60 is in the release position, the fastener 60 leaves the first fastening end 512 and the second fastening end 522.

The first expansion card 51 and the second expansion card 52 are parallel to the substrate 20. The first expansion card 51 is inserted into the first vertical plate slot 41 in a direction M1 perpendicular to the first vertical plate 31, and is electrically connected to the first vertical plate 31 through the first vertical plate slot 41. The first vertical plate 31 is inserted into the first substrate slot 21 along a mounting direction S perpendicular to the substrate 20 , and is electrically connected to the substrate 20 through the first substrate slot 21 . The second expansion card 52 is inserted into the second vertical plate slot 42 in a direction M2 perpendicular to the second vertical plate 32, and is electrically connected to the second vertical plate 32 through the second vertical plate slot 42. The second vertical plate 32 is inserted into the second substrate slot 22 along a mounting direction S perpendicular to the substrate 20 , and is electrically connected to the substrate 20 through the second substrate slot 22 .

When the fastener 60 is in the clamping position, the fastener 60 is pressed against the second surface 512b of the first fastening end 512 in a direction M1 perpendicular to the first vertical plate 31, and the first protrusion 632a is along the first vertical plate 31. The mounting direction S is pressed against the first side edge 512c. The fastener 60 is pressed against the second surface 522b of the second fastening end 522 in a direction M2 perpendicular to the second vertical plate 32, and the second protrusion 632b is pressed against the first side along the mounting direction S of the second vertical plate 32. Edge 522c. At this time, the fastener 60 has a clear specificity against the two different directions of the first fastening end 512. First, since the first expansion card 51 is inserted into the first vertical plate slot 41 in a direction M1 perpendicular to the first vertical plate 31, it means that the first expansion card 51 is easily released in the opposite direction of the direction M1. The pressing of the fastener 60 in a direction perpendicular to the first vertical plate 31 can prevent the first expansion card 51 from coming loose in the opposite direction. Furthermore, since the first vertical plate 31 is inserted into the first substrate slot 21 in a mounting direction S perpendicular to the substrate 20, it means that the first expansion card 51 can be along the mounting direction together with the first vertical plate 31. The reverse direction of S is released, and the pressing of the first protruding portion 632a along the mounting direction of the first vertical plate 31 against the first side edge 512c can prevent the loosening in the reverse direction. The pressing force of the card fastener 60 on the second fastening end 522 is the same as the pressing force of the fastener 60 on the first fastening end 512, and details are not described herein. In short, the first protrusion 632a can fix the first fastening end 512 to prevent the first fastening end 512 from moving in the vertical direction V, and the second protrusion 632b can fix the second fastening end 522 to prevent the second card. The solid end 522 moves in the vertical direction V. Thereby, the first expansion card 51 and the second expansion card 52 can be fixed in the vertical direction V. The first protrusion 633a and the second protrusion 633b can be respectively pushed toward the first limiting wall 61 and the second limiting wall 62 to the first fastening end 512 and the second fastening end 522, so that the first expansion card 51 and second The expansion card 52 is fixed in the direction M1 and the direction M2, respectively.

When the card fastener 60 is rotated from the locking position to the release position, the first fastening end 512 and the second fastening end 522 are separated to facilitate the removal of the first expansion card 51 and the second expansion card 52.

The chassis 10 includes two side walls 11 (one of which is not shown), a front wall (not shown), and a rear wall 12. The first expansion card 51 and the second expansion card 52 are received in a receiving space 100 surrounded by the two side walls 11 , the front wall 12 and the rear wall 12 . The fastening frame opening 10a is formed on the rear wall 12.

The rear wall 12 has a plurality of openings 121. The first expansion card 51 and the second expansion card 52 further have a first connector 513 and a second connector 523 respectively disposed corresponding to the opening 121. The two long rectangular blocks in FIGS. 1A and 1B represent the first connector 513 and the second connector 523, but the outer shapes of the first connector 513 and the second connector 523 are not the two long rectangles in the first and second FIGS. Block, replaced by two long rectangular blocks just for the sake of drawing. The opening 121 exposes the first connector 513 and the second connector 523. In the present embodiment, the rear wall 12 is of a unitary structure and is die cast.

1C, 1D, and 1E, FIG. 1D is a perspective view of the fastener 60 of the electronic device 1 of FIG. 1A, and FIG. 1E is a perspective view of another perspective of the fastener 60 of the 1D. In this embodiment, the first fastening end 512 is further provided with a second side edge 512d connecting the first surface 512a and the second surface 512b thereof opposite to the first side edge 512c. The second fastening end 522 is further provided with a second side edge 522d connecting the first surface 522a and the second surface 522b thereof opposite to the first side edge 522c. The first limiting wall 61 and the second limiting wall 62 are respectively provided with a first abutting portion 611 and a second abutting portion 621 extending into the fastening frame opening 10a. When the fastening member 60 is in the locking position, the first fastening end 512 is clamped between the first abutting portion 611 of the first limiting wall 61 and the first protruding portion 632a of the fastening member 60, the first abutting The portion 611 is pressed against the second side edge 512d of the first fastening end 512, and the second fastening end 522 is clamped to the second abutting portion 621 of the second limiting wall 62 and the second protruding portion of the fastener 60. Between the 632b, the second abutting portion 621 is pressed against the second side edge 522d of the second fastening end 522.

The first side 601 of the fastener 60 is provided with a first side wall 603, and the second side 602 of the fastener 60 is provided with a second side wall 604. The fastener 60 is also provided with a bottom wall 64 that connects the first side wall 603 and the second side wall 604. The first protrusion 632a protrudes from the first side wall 603, and the second protrusion 632b protrudes from the second side wall 604. The first side wall 603 and the second side wall 604 are respectively provided with elongated two-ports 603a, 604a. A portion between the two through ports 603a of the first side wall 603 forms a first elastic portion 605. A portion between the second opening 604a of the second side wall 604 forms a second elastic portion 606. The first elastic portion 605 is provided with a first protrusion 633a for pressing the second surface 512b of the first fastening end 512. The second elastic portion 606 is provided with a second protrusion 633b for pressing against the second surface 522b of the second fastening end 522. One end of the first elastic portion 605 is connected to the bottom wall 64, and the opposite end of the first elastic portion 605 is connected to the first protruding portion 632a. One end of the second elastic portion 606 is connected to the bottom wall 64, and the opposite end of the second elastic portion 606 is connected to the second protruding portion 632b. When the fastener 60 is in the locked position, the bottom wall 64 is parallel to the first expansion card 51 and the second expansion card 52.

Referring to FIG. 2, a perspective view of another perspective of the electronic device 1 of FIG. 1A is shown. The first fixing member 511 is further provided with an insertion end 514. The insertion end 514 and the first fastening end 512 are respectively located at opposite ends of the first fixing member 511. The insertion end 514 is inserted into a fixing groove 81 of the rear wall 12 of the chassis 10. The first insertion end 514 of the first expansion card 51 is detachably inserted into the fixing slot 81 in the direction M1. Thereby, the first expansion card 51 is more stably inserted into the first vertical board slot 41.

Returning to Figures 1A and 1B, Figure 1A shows the fastener 60 in the locked position, and Figure 1B shows the fastener 60 in the release position. When the first expansion card 51 or the second expansion card 52 is to be mounted on the substrate 20, the fastener 60 can be first rotated to the release position. When the first expansion card 51 is mounted, the first vertical plate 31 can be first inserted into the first substrate slot 21 of the substrate 20. The first expansion card 51 is aligned with the first vertical plate slot 41, and the first fastening end 512 is placed between the first limiting wall 61 and the second limiting wall 62. Then, the first expansion card 51 is inserted into the first vertical plate slot 41 along the direction M1, and the first fastening end 512 also moves toward the first limiting wall 61. When the second expansion card 52 is installed, the second expansion card 52 can be inserted into the second vertical board slot 42 in the second installation direction M2, and the second vertical board 32 can be inserted into the second board 20 The substrate slot 22 is disposed between the first limiting wall 61 and the second limiting wall 62 and adjacent to the second limiting wall 62. After that, when the first expansion card 51 and the second expansion card 52 are to be fixed, the card firmware 60 can be rotated to the locking position, so that the card firmware 60 fixes the first expansion card 51 and the second expansion card 52 to the substrate 20 . . When the first expansion card 51 and the second expansion card 52 are to be removed, the card firmware 60 can be rotated to the release position, and the first expansion card 51 can be disassembled in the reverse step of installing the first expansion card 51 and the second expansion card 52. The second expansion card 52.

In the present embodiment, the order in which the first expansion card 51 and the second expansion card 52 are installed is different, but is not limited thereto. The above methods can also be interchanged or provided for the user to select the same method. In addition, the user can also install only the first expansion card 51 or only the second expansion card 52. The first expansion card 51 or the second expansion card 52 is fixed by the card firmware 60. The size specifications of the first expansion card 51 and the second expansion card 52 can be different sizes, but are not limited thereto. The size configuration of the two can also be the same.

In summary, the electronic device of the present invention can simultaneously mount the fixing member of the expansion card between the limiting wall and the card fastener when the card fastener is in the locking position, so as to install the expansion card in the chassis. When the expansion card is to be removed, simply rotating the card firmware from the clamped position to the release position allows the fastener to be removed from the fixture for quick replacement of the expansion card without the need for additional tools. In addition, when the card fastener is in the clamping position, the fixing members of the two expansion cards can be simultaneously sandwiched between the limiting wall and the card firmware, so that one card firmware can also achieve the effect of fixing two expansion cards at the same time.

Although the present invention has been disclosed above in the foregoing embodiments, it is not intended to limit the invention. It is within the scope of the invention to be modified and modified without departing from the spirit and scope of the invention. Please refer to the attached patent application for the scope of protection defined by the present invention.

1‧‧‧Electronic device

10‧‧‧Chassis

11‧‧‧ side wall

12‧‧‧ Back wall

100‧‧‧ accommodating space

20‧‧‧Substrate

21‧‧‧First substrate slot

22‧‧‧Second substrate slot

31‧‧‧First vertical board

32‧‧‧Second board

41‧‧‧First vertical board slot

42‧‧‧Second vertical board slot

51‧‧‧First expansion card

52‧‧‧Second expansion card

60‧‧‧ card firmware

61‧‧‧First limit wall

62‧‧‧Second limit wall

M1, M2‧‧‧ direction

Claims (10)

An electronic device includes: a fastening frame having a first limiting wall and a second limiting wall facing each other; an expansion card; and a fixing member fixed on the expansion card The fixing member is provided with a fastening end received in the fastening frame opening, the fastening end is provided with an opposite first surface and a second surface, and a first surface connecting the first surface and the second surface a side edge, the first surface is located between the second surface and the first limiting wall; and a fastener, the fastener is reciprocable relative to the fastening frame opening at a clamping position and a releasing position The card fastener has a first side corresponding to the first limiting wall and a second side corresponding to the second limiting wall, the first side of the fastener is provided with a protrusion, when the card is located at the When the card is in the position, the card is between the first limiting wall and the second limiting wall and is pressed against the second surface of the clamping end to clamp the clamping end to the first limit Between the wall and the first side of the fastener, and the protrusion is pressed against the first side edge of the fastening end, when the fastener is located at the release position When the fastening away from the fastened end. The electronic device of claim 1, further comprising a substrate, a substrate slot disposed on the substrate, a vertical plate perpendicular to the substrate, and a vertical plate slot disposed on the vertical plate, the expansion The card is parallel to the substrate, and the expansion card is inserted into the vertical plate slot in a direction perpendicular to the vertical plate and is electrically connected to the vertical plate through the vertical plate slot. The vertical plate is perpendicular to the substrate. The mounting direction is inserted into the substrate slot and electrically connected to the substrate through the substrate slot. When the fastener is in the clamping position, the fastener is pressed against the second surface of the fastening end in a direction perpendicular to the vertical plate, and the protruding portion is pressed against the first direction along the mounting direction of the vertical plate. One side edge. The electronic device of claim 1, wherein the fastening end further comprises a second side edge connecting the first surface and the second surface opposite to the first side edge, the first limiting wall An abutting portion extending into the fastening frame opening, the clamping end being clamped to the abutting portion of the first limiting wall and the fastener when the clamping member is in the clamping position Between the protrusions, the abutting portion abuts against the second side edge. The electronic device of claim 1, wherein the card fastener is pivotally connected to the first limiting wall and the second limiting wall, and the card fastener is rotated relative to the fixing frame opening to enter and exit the clamping frame. mouth. The electronic device of claim 1, wherein the first side of the card is provided with a first side wall, and the second side of the card is provided with a second side wall, the protrusion protruding from the first side wall, The first side wall is provided with an elongated two-port, and a portion between the two openings on the first side wall forms an elastic portion, and the elastic portion is provided with a protrusion for pressing the fastening end. The second side. The electronic device of claim 5, wherein the card fastener is further provided with a bottom wall connecting the first side wall and the second side wall, one end of the elastic portion is connected to the bottom wall, and the opposite end of the elastic portion is connected The protrusion is parallel to the expansion card when the fastener is in the clamping position. The electronic device of claim 1 further includes a chassis, the chassis includes two side walls, a front wall and a rear wall, and the expansion card is received in the two side walls, the front wall and the rear wall In the space, the fastening frame is formed in the space On the rear wall, the fixing member is further provided with an insertion end, the insertion end and the fastening end are respectively located at opposite ends of the fixing member, and the insertion end is inserted into a fixing groove of the rear wall. The electronic device of claim 7, wherein the rear wall has an opening, and the expansion card is further mounted with a connector corresponding to one of the openings, the opening exposing the connector. The electronic device of claim 1, wherein the fixing member is of a long strip shape, the fastening end is bent from one end of the fixing member, and the first limiting wall and the second limiting wall are perpendicular to the expansion card. An electronic device includes: a fastening frame port having a first limiting wall and a second limiting wall facing each other; a first expansion card; adjacent to the first expansion card And a second expansion card in parallel; a first fixing member fixed on the first expansion card, the first fixing member is provided with a first fastening end received in the fastening frame opening, the first card The solid end is provided with an opposite first surface and a second surface, and a side of the first surface connecting the first fastening end and the second surface of the first fastening end, the first fastening end of the first surface The first surface is located between the second surface of the first fastening end and the first limiting wall; a second fixing member is fixed on the second expansion card, and the second fixing component is disposed on the card. a second fastening end of the fixing frame, wherein the second fastening end is provided with an opposite first surface and a second surface, and the first surface and the second fastening end connecting the second fastening end One side edge of the second side, the second fastening The first surface of the end is located between the second surface of the second fastening end and the second limiting wall; and a fastener, the fastener can move back and forth relative to the fastening frame to a clamping position and a Release a position, the card fastener has a first side corresponding to the first limiting wall and a second side corresponding to the second limiting wall, the first side of the fastener is provided with a first protrusion, the card The second side of the firmware is provided with a second protrusion. When the card is located in the fastening position, the card is between the first limiting wall and the second limiting wall. One side is pressed against the second surface of the first fastening end such that the first fastening end is clamped between the first limiting wall and the first side of the fastener, the first protrusion Pressing against the side edge of the first fastening end, the second side of the fastener is pressed against the second surface of the second fastening end such that the second fastening end is clamped to the second limit Between the wall and the second side of the fastener, the second protrusion is pressed against the side edge of the second fastening end, when the fastener is in the release position, Fastening away from the first end and the second retaining retaining end.