CN217428544U

CN217428544U - Electronic device and fixing component thereof

Info

Publication number: CN217428544U
Application number: CN202220889678.XU
Authority: CN
Inventors: 赖志明; 高永顺
Original assignee: Giga Byte Technology Co Ltd
Current assignee: Giga Byte Technology Co Ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-09-13
Anticipated expiration: 2032-04-18

Abstract

An electronic device is used for fixing at least an expansion card. The electronic device comprises a circuit board and a fixing component. The circuit board comprises a board body, the board body comprises at least one assembling hole and a connector, and one end of the expansion card is connected with the connector. The fixing component comprises a fixing piece and an elastic piece, the fixing piece comprises a rod body and a supporting piece, the supporting piece radially extends from the rod body, and the rod body is connected to the assembling hole. The elastic piece comprises a joint part, a positioning part and an elastic swing arm connected between the joint part and the positioning part. The joint part is connected with the rod body, the supporting piece is positioned between the joint part and the positioning part and corresponds to the elastic swing arm, a clamping gap is formed between the positioning part and the supporting piece, and the positioning part is used for guiding the expansion card to be fixed in the clamping gap.

Description

Electronic device and fixing component thereof

Technical Field

The present invention relates to an electronic device, and more particularly to an electronic device with a fixing component for fixing an expansion card.

Background

The main board of the present electronic device can increase the expansion card according to the requirement of the user to improve the efficiency of the electronic device, the main board manufacturer can install the expansion card by himself in order to facilitate the user, the manufacturer often sets a fixer on the main board to fix the expansion card through the fixer, however, according to the mechanism design of the present fixer, the user needs to use a hand tool (such as a screwdriver) to assist in fixing the expansion card, or fix the expansion card on the fixer in a way of turning a knob by hand, so, if the user does not get the hand tool by hand, the expansion card can not be fixed on the fixing component, or if the installation space inside the main board is not good or the fixer is too small, the operation of the user is caused.

SUMMERY OF THE UTILITY MODEL

In some embodiments, an electronic device is provided for fixing at least one expansion card. The electronic device comprises a circuit board and a fixing component. The circuit board comprises a board body, the board body comprises at least one assembling hole and a connector, and one end of the expansion card is connected with the connector. The fixing component comprises a fixing piece and an elastic piece, the fixing piece comprises a rod body and a supporting piece, the supporting piece radially extends from the rod body, and the rod body is connected to the assembling hole. The elastic piece comprises a joint part, a positioning part and an elastic swing arm connected between the joint part and the positioning part. The joint part is connected with the rod body, the supporting piece is positioned between the joint part and the positioning part and corresponds to the elastic swing arm, a clamping gap is formed between the positioning part and the supporting piece, and the positioning part is used for guiding the expansion card to be fixed in the clamping gap.

In an embodiment, the at least one assembling hole includes a first assembling hole and a second assembling hole, and the second assembling hole is located between the first assembling hole and the connector.

In the above electronic device, the fixing component is connected to the first assembling hole, the other fixing component is connected to the second assembling hole, a first distance is provided between the top end of the positioning portion of the fixing component and the circuit board, a second distance is provided between the top end of the other positioning portion of the other fixing component and the circuit board, and the first distance is greater than the second distance.

In the above-mentioned electronic device, the shaft body has a head, a shaft body and a fixed section, the shaft body is connected between the head and the fixed section, the supporting piece radially extends from the shaft body, and the fixed section is connected to the assembling hole.

In the above-mentioned electronic device, the fixing member includes a fixing seat, the fixing seat extends radially from the shaft, and the joint portion abuts against the fixing seat.

In the above-mentioned electronic device, the joint part is rotatably connected to the shaft.

In the above electronic device, the joint portion is a C-shaped buckle ring and is buckled to the shaft.

In the above electronic device, the elastic member includes an operating portion, and the operating portion is used for pushing the elastic member.

In an embodiment of the electronic device, the elastic swing arm has a concave portion, and a part of the supporting sheet is accommodated in the concave portion.

In the above electronic device, the positioning portion has a guiding inclined plane for guiding the expansion card to be fixed in the clamping gap.

In the above electronic device, the positioning portion has a stop block, and the stop block extends to the clamping gap.

In the electronic device, when one end of the expansion card abuts against the guide slope, the end of the expansion card is located between two endpoints of the guide slope.

In the above-mentioned electronic device, the positioning portion includes at least one positioning arm, the elastic swing arm includes a fixed end and a free end, the fixed end is fixed to the joint portion, the free end is connected to the positioning portion, the at least one positioning arm extends from the free end of the elastic swing arm, and the guiding inclined plane is located at an end of the at least one positioning arm.

In an embodiment of the electronic device, the at least one positioning arm includes a first positioning arm and a second positioning arm, the first positioning arm and the second positioning arm respectively extend from two opposite sides of the free end, the number of the guiding inclined planes is two, and the two guiding inclined planes are respectively located at an end of the first positioning arm and an end of the second positioning arm.

In some embodiments, a fixing component is provided for fixing an expansion card. The fixing component comprises a fixing piece and an elastic piece, wherein the fixing piece comprises a rod body and a supporting piece, and the supporting piece extends from the rod body in the radial direction. The elastic piece comprises a joint part, a positioning part and an elastic swing arm connected between the joint part and the positioning part. The joint part is connected with the rod body, the supporting piece is positioned between the joint part and the positioning part and corresponds to the elastic swing arm, a clamping gap is formed between the positioning part and the supporting piece, and the positioning part is used for guiding the expansion card to be fixed in the clamping gap.

In the fixing assembly, the positioning portion has a guiding inclined plane for guiding the expansion card to be fixed in the clamping gap.

In the fixing assembly, when one end of the expansion card abuts against the guide slope, the end of the expansion card is located between two end points of the guide slope.

In the above-mentioned fixing assembly, the positioning portion has a stop block, and the stop block extends from the positioning portion to the clamping gap.

In the above-mentioned fixing assembly, the elastic member includes an operating portion, and the operating portion is used for pushing the elastic member.

In the fixing assembly, the elastic swing arm has a concave portion, and a part of the supporting piece is accommodated in the concave portion.

In an embodiment of the present invention, the shaft body has a head, a shaft body and a fixing section, the shaft body is connected between the head and the fixing section, and the supporting piece extends radially from the shaft body.

The fixing assembly, wherein the fixing section is a threaded section.

In an embodiment of the present invention, the fixing member includes a fixing seat, the fixing seat extends radially from the rod body, and the joint portion abuts against the fixing seat.

The joint part is rotatably connected with the shaft body.

In the above-mentioned fixing component, the joint part is a C-shaped buckle ring and is buckled on the shaft body.

In the above-mentioned fixing assembly, the positioning portion includes at least one positioning arm, the elastic swing arm includes a fixed end and a free end, the fixed end is fixed to the joint portion, the free end is connected to the positioning portion, the at least one positioning arm extends from the free end of the elastic swing arm, and the guiding inclined plane is located at an end portion of the at least one positioning arm.

In the above-mentioned fixing assembly, the at least one positioning arm includes a first positioning arm and a second positioning arm, the first positioning arm and the second positioning arm respectively extend from two opposite sides of the free end, the number of the guiding inclined planes is two, and the two guiding inclined planes are respectively located at an end of the first positioning arm and an end of the second positioning arm.

To sum up, according to some embodiments, the fixing component fixes the expansion card through the clamping gap between the positioning portion and the supporting plate, wherein when the end portion of the expansion card abuts against the positioning portion and applies a pushing force to the positioning portion, the positioning portion can be pushed by the expansion card, and the positioning portion can guide the expansion card to enter the clamping gap, and after the positioning portion is reset, the end portion of the expansion card can be fixed in the clamping gap.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

Drawings

Fig. 1 is a perspective view of an electronic device according to some embodiments of the present invention.

Fig. 2 is a perspective view of a fixation assembly according to some embodiments of the present invention.

Fig. 3 is a side view of a fixation assembly according to some embodiments of the present invention.

Fig. 4 is a perspective view of the expansion card mounted to the circuit board according to some embodiments of the present invention.

Fig. 5A is a schematic diagram illustrating the expansion card pushing the positioning portion when the positioning portion is at the first position according to some embodiments of the present invention.

Fig. 5B is a schematic diagram of the expansion card pushing the positioning portion when the positioning portion is at the second position according to some embodiments of the present invention.

Fig. 5C is a schematic diagram of the expansion card being located in the clamping gap when the positioning portion is at the first position according to some embodiments of the present invention.

Fig. 6 is a side view of an electronic device according to further embodiments of the present invention.

Wherein, the reference numbers:

1 electronic device

10: circuit board

11: plate body

12 assembly hole

121 first assembling hole

122 second assembling hole

13: connector

131 the first connection port

132 second connection port

20. 20' fixing component

21, fixing part

22 resilient member

221 operating part

23: rod body

231 head part

232 is a shaft body

233 fixing section

24 support piece

25 joining part

26. 26' positioning part

261. 261' clamping gap

262. 262' guiding inclined plane

262a, 262b endpoints

263 stop block

264 positioning arm

264a first positioning arm

264b second positioning arm

27 elastic swing arm

271 fixed end

272 free end

273 concave part

28: fixed seat

C, expansion card

C1 electric connection end

C2 fixed end

D1 preset distance

L1 first distance

L2 second distance

P1 first position

P2 second position

Detailed Description

The following describes the structural and operational principles of the present invention in detail with reference to the accompanying drawings:

various embodiments are described in detail below, however, the embodiments are only used as examples and do not limit the scope of the present invention. In addition, some components are omitted from the drawings in the embodiments to clearly show the technical features of the present invention. The same reference numbers will be used throughout the drawings to refer to the same or like elements.

Please refer to fig. 1 and fig. 2. Fig. 1 is a perspective view of an electronic device according to some embodiments of the present invention. Fig. 2 is a perspective view of a retaining assembly according to some embodiments of the present invention. As shown in fig. 1 and fig. 2, an electronic device 1 is used for fixing an expansion card C. The electronic device 1 includes a circuit board 10 and a fixing member 20. The circuit board 10 includes a board body 11, the board body 11 includes at least one assembling hole 12 and a connector 13, and one end of the expansion card C is connected to the connector 13. The fixing assembly 20 includes a fixing member 21 and an elastic member 22, the fixing member 21 includes a rod 23 and a supporting plate 24, the supporting plate 24 radially extends from the rod 23, and the rod 23 is connected to the at least one assembling hole 12. The elastic member 22 includes a joint portion 25, a positioning portion 26, and an elastic swing arm 27 connected between the joint portion 25 and the positioning portion 26. The joint part 25 is connected to the rod 23, the supporting piece 24 is located between the joint part 25 and the positioning part 26 and corresponds to the elastic swing arm 27, a clamping gap 261 is provided between the positioning part 26 and the supporting piece 24, and the positioning part 26 is used for guiding the expansion card C to be fixed in the clamping gap 261 (to be described later). The expansion card C may be a Solid-state drive (SSD), a video card, a network card, a memory card, or a sound card, wherein the connector 13 may be replaced according to the interface specification of the expansion card C, and the interface specification of the expansion card C may be a PCI Express (PCIE), mini-sata (msata), or m.2 interface. In some embodiments, the assembling hole 12 is separated from the connector 13 by a predetermined distance D1, and the predetermined distance D1 may be a length corresponding to the expansion card C, so that after the fixing element 20 is connected to the assembling hole 12, the expansion card C can be fixed between the connector 13 and the fixing element 20, and the circuit board 10 can read the expansion card C through the connector 13. In some embodiments, the assembling holes 12 include a first assembling hole 121 and a second assembling hole 122, and the second assembling hole 122 is located between the first assembling hole 121 and the connector 13, so that when the expansion cards C with different specifications and lengths are installed, the fixing element 20 can be connected to the assembling holes 12 (the first assembling hole 121 or the second assembling hole 122) with the proper predetermined distance D1 according to the length of the expansion card C.

Please refer to fig. 1 to fig. 3. Fig. 3 is a side view of a fixation assembly according to some embodiments of the present invention. As shown in fig. 1 to 3, in some embodiments, the elastic swing arm 27 includes a fixed end 271 and a free end 272, the fixed end 271 is fixed to the joint portion 25, and the free end 272 is connected to the positioning portion 26. The elastic element 22 can swing the free end 272 with respect to the fixed end 271 by the elastic action of the elastic swing arm 27, and the free end 272 can swing the positioning part 26 between a first position P1 and a second position P2 according to the swing stroke of the elastic swing arm 27, and in the normal state, the elastic swing arm 27 can maintain the positioning part 26 at the first position P1 according to the elastic action of itself, the first position P1 can be a position (as a dotted line portion in fig. 3) where the positioning part 26 approaches the supporting plate 24, the second position P2 can be a position (as a solid line portion in fig. 3) where the positioning part 26 is away from the supporting plate 24, specifically, when the elastic element 22 is pushed by an external force, the elastic element 22 can swing the positioning part 26 from the first position P1 to the second position P2 by the elastic action of the elastic swing arm 27, and the positioning part 26 is away from the supporting plate 24, when the external force applied to the elastic member 22 is removed, the elastic member 22 receives the elastic force of the elastic swing arm 27 to return the positioning portion 26 from the second position P2 to the first position P1, and the positioning portion 26 is moved toward the support piece 24 again. In addition, when the positioning part 26 is at the first position P1, the shortest distance between the positioning part 26 and the connector 13 is smaller than the preset distance D1, and when the positioning part 26 is at the second position P2, the shortest distance between the positioning part 26 and the connector 13 is greater than the preset distance D1, that is, when the positioning part 26 is at the first position P1, the positioning part 26 extends and presses a part of the expansion card C, and when the positioning part 26 is at the second position P2, the positioning part 26 is far away from the expansion card C, so that the expansion card C is not pressed by the positioning part 26.

As shown in fig. 1 to fig. 3, in some embodiments, the positioning portion 26 further has a guiding inclined surface 262, the guiding inclined surface 262 can be used to guide the expansion card C to be fixed in the clamping gap 261, for example, the expansion card C can push the positioning portion 26 along the guiding inclined surface 262 to drive the positioning portion 26 to move, during the process of swinging the positioning portion 26 from the first position P1 to the second position P2, the expansion card C can be guided to the clamping gap 261 via the guiding inclined surface 262, specifically, the guiding inclined surface 262 includes an end 262a and another end 262b, when the positioning portion 26 is located at the first position P1, and the expansion card C abuts against the guiding inclined surface 262, the expansion card C is located between two ends (262a, 262b) of the guiding inclined plane 262, thereby, when the expansion card C moves in the Y-axis direction and pushes the fixing member 20, the expansion card C can easily push the positioning portion 26, so that the positioning portion 26 swings from the first position P1 to the second position P2. In some embodiments, the positioning portion 26 further has a stop block 263, the stop block 263 extends from the positioning portion 26 to the clamping gap 261, when the expansion card C is located in the clamping gap 261, the stop block 263 can stop the expansion card C, so as to limit the expansion card C in the Z-axis direction. In some embodiments, the positioning portion 26 further includes at least one positioning arm 264, the positioning arm 264 extends from the free end 272 of the elastic swing arm 27, and the guiding inclined surface 262 is located at an end of the at least one positioning arm 264. In some embodiments, the at least one positioning arm 264 includes a first positioning arm 264a and a second positioning arm 264b, wherein the first positioning arm 264a and the second positioning arm 264b extend from opposite sides of the free end 272, respectively, and the number of the guiding inclined surfaces 262 may be two, wherein the two guiding inclined surfaces (262, 262 ') are located at an end of the first positioning arm 264a and an end of the second positioning arm 264b, respectively, so that when the expansion card C abuts against the positioning portion 26, the expansion card C can abut against the first positioning arm 264a and the second positioning arm 264b, and can be guided by the guiding inclined surfaces (262, 262') to be fixed in the clamping gap 261.

As shown in fig. 1 to fig. 3, in some embodiments, the operator may push the positioning portion 26 by the expansion card C, or directly push the elastic member 22, so as to swing the positioning portion 26 from the first position P1 to the second position P2. The elastic element 22 further includes an operation portion 221, the operation portion 221 is used to push the elastic element 22 to swing the positioning portion 26 from the first position P1 to the second position P2, or, if the expansion card C is to be removed from the clamping gap 261, the operation portion 221 can be directly pushed to swing the positioning portion 26 to the second position P2, so that the expansion card C is not pressed by the positioning portion 26 any more to remove the expansion card C from the clamping gap 261. The operation portion 221 can be a protrusion or a groove, but the structure that the operator applies force to the operation portion 221 to push the elastic element 22 can be implemented, and is not limited thereto.

As further shown in fig. 1-3, in some embodiments, the elastic swing arm 27 has a recess 273, and the partial support piece 24 is accommodated in the recess 273. It can mean that when the positioning part 26 is located at the first position P1, the concave part 273 is received in the supporting piece 24, and when the positioning part 26 is located at the second position P2, the concave part 273 is separated from the supporting piece 24, wherein, when the concave part 273 is received in the supporting piece 24, the supporting piece 24 can limit the position of the elastic member 22 in the Y-axis direction, so as to maintain the expansion card C fixed at a proper height by the elastic member 22, for example, when the operator does not push the elastic member 22, such as when the operator directly lifts up the expansion card C, the expansion card C will push against the positioning part 26, and at this time, the concave part 273 of the elastic member 22 will be limited by the supporting piece 24, so that the elastic member 22 will not be pushed by the expansion card C and separated from the fixing member 21.

As further shown in fig. 1-3, in some embodiments, the shaft 23 has a head 231, a shaft 232 and a fixed section 233, the shaft 232 is connected between the head 231 and the fixed section 233, and the support piece 24 extends radially from the shaft 232. In some embodiments, the connecting portion 25 of the elastic member 22 is rotatably connected to the shaft 232, wherein the connecting portion 25 may be a C-shaped buckle and is fastened to the shaft 232, and the connecting portion 25 may also be fixed to the shaft 232. In some embodiments, the fixing section 233 may be a threaded section, the assembling hole 12 of the circuit board 10 may be a screw hole, and the fixing element 20 may lock the fixing section 233 (threaded section) to the assembling hole 12 (screw hole) of the circuit board 10 when the fixing element 20 is connected to the circuit board 10. In some embodiments, the fixing element 21 includes a fixing seat 28, the fixing seat 28 extends radially from the shaft 232, when the joint portion 25 of the elastic element 22 is connected to the rod 23, the joint portion 25 abuts against the fixing seat 28, wherein the volume of the fixing seat 28 is greater than the aperture of the assembling hole 12, thereby, when the fixing section 233 is connected to the assembling hole 12, the fixing seat 28 can abut against the circuit board 10, so that the fixing element 20 can be connected to the circuit board 10 at a proper height, so that the clamping gap 261 can be located at the same height as a connecting port of the connector 13 (described later), and after the two ends of the expansion card C are connected to the connector 13 and the fixing element 20 respectively, the expansion card C can be kept horizontal or nearly horizontal, thereby achieving a better electrical connection state.

Please refer to fig. 4 and fig. 5A, fig. 5B and fig. 5C. Fig. 4 is a perspective view of the circuit board with the expansion card installed according to some embodiments of the present invention. Fig. 5A is a schematic diagram illustrating the expansion card pushing the positioning portion when the positioning portion is at the first position according to some embodiments of the present invention. Fig. 5B is a schematic diagram of the expansion card pushing the positioning portion when the positioning portion is at the second position according to some embodiments of the present invention. Fig. 5C is a schematic diagram of the extended card being positioned in the clamping gap when the positioning portion is at the first position according to some embodiments of the present invention. As shown in fig. 4 and 5A, in some embodiments, when an operator wants to mount the expansion card C on the circuit board 10, the operator may first connect an electrical connection end C1 of the expansion card C to the connector 13, and then push a fixing end C2 of the expansion card C toward the fixing element 20, so that when the fixing end C2 abuts against the positioning portion 26 of the fixing element 20, since the shortest distance between the positioning portion 26 and the connector 13 is smaller than the predetermined distance D1 (as shown in fig. 1) when the positioning portion 26 is at the first position P1, the fixing end C2 is temporarily stopped by the positioning portion 26. As shown in fig. 5B, when the expansion card C is further pushed to the clamping gap 261, the fixing end C2 pushes the positioning element 26 to swing the positioning element 26 from the first position P1 to the second position P2, and during the pushing process of the positioning element 26, the fixing end C2 can move along the guiding inclined surface 262 of the positioning element 26 under the guiding action of the positioning element 26. As shown in fig. 5C, when the positioning portion 26 is at the second position P2, the shortest distance between the positioning portion 26 and the connector 13 is greater than the predetermined distance D1, and the fixed end C2 is no longer stopped by the positioning part 26, so that the fixed end C2 of the expansion card C can smoothly enter the clamping gap 261 and be carried on the supporting sheet 24, when the fixed end C2 is positioned in the nip 261, the fixed end C2 does not press the positioners 26, so that the positioning part 26 returns from the second position P2 to the first position P1 by the elastic action of the elastic swing arm 27, when the positioning part 26 returns to the first position P1, the shortest distance between the positioning part 26 and the connector 13 is again smaller than the predetermined distance D1, so that the positioning part 26 can press the fixed end C2 of the expansion card C, the fixing end C2 is fixed in the clamping gap 261, so that the electrical connection end C1 and the fixing end C2 of the expansion card C can be fixed by the connector 13 and the fixing component 20, respectively. When the expansion card C is to be detached from the circuit board 10, the positioning portion 26 is pushed from the first position P1 to the second position P2 again, so that the fixed end portion C2 is released from the pressing of the positioning portion 26, the fixed end portion C2 can be freely moved out of the clamping gap 261, and the electrical connection end portion C1 can be taken out of the connector 13.

Referring to fig. 6, fig. 6 is a side view of an electronic device according to other embodiments of the present invention. As shown in fig. 1 to 6, the electronic device 1 can be installed with two expansion cards (C, C') of different specifications at the same time. Specifically, the electronic device 1 includes a fixing element 20 and another fixing element 20 ', the fixing element 20 is connected to the first assembling hole 121, the another fixing element 20' is connected to the second assembling hole 122, wherein a top end of the positioning portion 26 of the fixing element 20 has a first distance L1 with the circuit board 10, a top end of the another positioning portion 26 'of the another fixing element 20' has a second distance L2 with the circuit board 10, and the first distance L1 is greater than the second distance L2, i.e., the clamping gap 261 of the fixing element 20 is higher than the another clamping gap 261 'of the another fixing element 20'. In some embodiments, the connector 13 includes a first connection port 131 and a second connection port 132, the first connection port 131 can correspond to the clamping gap 261 and be located at the same level as the clamping gap 261, the second connection port 132 can correspond to another clamping gap 261 ' and be located at the same level as the other clamping gap 261 ', so that, when the electronic device 1 is to install expansion cards (C, C ') of different specifications at the same time, the fixing positions of the two expansion cards (C, C ') can be respectively staggered by using the height difference between the two fixing components (20, 20 '), and the two expansion cards (C, C ') can be respectively fixed between the two fixing components (20, 20 ') and the connector 13.

In summary, according to some embodiments, the electronic device 1 fixes the expansion card C by the fixing component 20, wherein the fixing component 20 utilizes the elastic swing arm 27 of the elastic member 22 to make the expansion card C abut against the positioning portion 26 and push the positioning portion 26, so as to swing the positioning portion 26 and guide the expansion card C to enter the clamping gap (261, 261 '), after the expansion card C enters the clamping gap (261, 261 '), the expansion card C can be reset and press a part of the expansion card C, so that the expansion card C can be fixed in the clamping gap (261, 261 '), thereby the present invention can fix the expansion card C without using other hand tools, and the operation is very convenient and fast.

Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.

Claims

1. An electronic device for fixing at least one expansion card, comprising:

a circuit board, which comprises a board body, wherein the board body comprises at least one assembling hole and a connector, and one end of the expansion card is connected with the connector; and

a fixing component, comprising a fixing piece and an elastic piece, wherein,

the fixing piece comprises a rod body and a supporting piece, wherein the supporting piece radially extends from the rod body, and the rod body is connected with the at least one assembling hole;

the elastic piece comprises a joint part, a positioning part and an elastic swing arm connected between the joint part and the positioning part, the joint part is connected with the rod body, the supporting piece is positioned between the joint part and the positioning part and corresponds to the elastic swing arm, a clamping gap is formed between the positioning part and the supporting piece, and the positioning part is used for guiding the expansion card to be fixed in the clamping gap.

2. The electronic device of claim 1, wherein the at least one assembly hole comprises a first assembly hole and a second assembly hole, the second assembly hole being located between the first assembly hole and the connector.

3. The electronic device of claim 2, wherein the fixing element is connected to the first assembling hole, another fixing element is connected to the second assembling hole, a first distance is formed between a top end of the positioning portion of the fixing element and the circuit board, a second distance is formed between a top end of another positioning portion of the another fixing element and the circuit board, and the first distance is greater than the second distance.

4. The electronic device of claim 1, wherein the shaft has a head, a shaft connected between the head and the securing section, and a securing section connected to the assembly hole, the support tab extending radially from the shaft.

5. The electronic device of claim 4, wherein the fixing member includes a fixing seat extending radially from the shaft, and the engaging portion abuts against the fixing seat.

6. The electronic device of claim 5, wherein the engaging portion is rotatably connected to the shaft.

7. The electronic device of claim 6, wherein the connecting portion is a C-shaped buckle and is fastened to the shaft.

8. The electronic device of claim 1, wherein the elastic member comprises an operating portion for pushing the elastic member.

9. The electronic device according to claim 1, wherein the elastic swing arm has a recess, and a part of the supporting sheet is accommodated in the recess.

10. The electronic device of claim 1, wherein the positioning portion has a guiding slope for guiding the expansion card to be fixed in the clamping gap.

11. The electronic device of claim 10, wherein the positioning portion has a stop extending to the clamping gap.

12. The electronic device as claimed in claim 11, wherein when an end of the expansion card abuts against the guiding slope, the end of the expansion card is located between two ends of the guiding slope.

13. The electronic device according to claim 12, wherein the positioning portion comprises at least one positioning arm, the elastic swing arm comprises a fixed end and a free end, the fixed end is fixed to the engaging portion, the free end is connected to the positioning portion, the at least one positioning arm extends from the free end of the elastic swing arm, and the guiding slope is located at an end of the at least one positioning arm.

14. The electronic device of claim 13, wherein the at least one positioning arm includes a first positioning arm and a second positioning arm, the first positioning arm and the second positioning arm respectively extend from opposite sides of the free end, the number of the guiding slopes is two, and the two guiding slopes are respectively located at an end of the first positioning arm and an end of the second positioning arm.

15. A fixing component for fixing an expansion card, comprising:

a fixing member including a rod body and a supporting piece extending radially from the rod body; and

an elastic piece, including a joint part, a positioning part and an elastic swing arm connected between the joint part and the positioning part, the joint part is connected to the rod body, the supporting piece is located between the joint part and the positioning part and corresponding to the elastic swing arm, a clamping gap is provided between the positioning part and the supporting piece, and the positioning part is used for guiding the expansion card to be fixed in the clamping gap.

16. The fixing assembly of claim 15, wherein the positioning portion has a guiding inclined surface for guiding the expansion card to be fixed in the clamping gap.

17. The fixing assembly of claim 16, wherein when an end of the expansion card abuts against the guiding ramp, the end of the expansion card is located between two ends of the guiding ramp.

18. The securing assembly of claim 15, wherein the positioning portion has a stop extending therefrom to the clamping gap.

19. The securing assembly of claim 15, wherein the resilient member includes an operating portion for urging the resilient member.

20. The securing assembly as claimed in claim 15, wherein the resilient swing arm has a recess in which a portion of the support tab is received.

21. The securing assembly of claim 15, wherein the shaft has a head, a shaft and a securing section, the shaft being connected between the head and the securing section, the support tab extending radially from the shaft.

22. The securing assembly of claim 21, wherein the securing section is a threaded section.

23. The securing assembly of claim 21, wherein the securing member includes a retaining seat extending radially from the shaft, the engaging portion abutting the retaining seat.

24. The securing assembly of claim 21, wherein the engaging portion is rotatably connected to the shaft.

25. The securing assembly of claim 24, wherein the engagement portion is a C-shaped snap ring and snaps onto the shaft.

26. The securing assembly according to claim 16, wherein the positioning portion includes at least one positioning arm, the resilient swing arm includes a fixed end and a free end, the fixed end is fixed to the engaging portion, the free end is connected to the positioning portion, the at least one positioning arm extends from the free end of the resilient swing arm, and the guiding bevel is located at an end of the at least one positioning arm.

27. The securing assembly of claim 26, wherein the at least one positioning arm includes a first positioning arm and a second positioning arm, the first positioning arm and the second positioning arm extending from opposite sides of the free end, respectively, the number of the guiding ramps being two, the two guiding ramps being located at an end of the first positioning arm and an end of the second positioning arm, respectively.