TWI845099B - Cage and electronic device - Google Patents

Abstract

A cage for arranging an expansion card therein. The expansion card includes a panel and is displaceable relative to the cage along a first direction. The cage includes a bracket and a latch assembly. The bracket includes a front frame portion and a side plate connected to each other. The side plate is configured to be in contact with a part of the panel of the expansion card. The latch assembly is movably disposed on the side plate along a second direction perpendicular to the first direction and displaceable between a first position and a second position along the second direction. An overlap range of the latch assembly and the side plate when the latch assembly is in the first position is greater than the overlap range of the latch assembly and the side plate when the latch assembly is in the second position. When the latch assembly is in the first position, the latch assembly limits the expansion card separating from the cage along the first direction. An electronic device including the cage is provided too.

Description

Expansion Box and Electronic Devices

This case relates to electronic devices and expansion box structures thereof.

With the popularity of electronic products, users have higher and higher demands for electronic products. Electronic products must have fast computing speed, high performance, light weight and expandability to occupy a place in the market. However, with the reduction of the size and internal space of electronic products, when users want to assemble or replace the internal storage device or expansion card, the space available for operation inside the electronic product is extremely limited.

In general electronic products, a fixed access device or a high-speed peripheral component (such as a PCIe card) is usually locked to a bracket, and the bracket is then fixed to the housing of the electronic product, so that the access device or the high-speed peripheral component can be stably arranged inside the electronic product.

However, in general electronic products, access devices or high-speed peripheral components must be screwed to the bracket. However, the screw locking process requires not only one-to-one alignment of the screw holes, but also continuous rotation to ensure its locking stability. In general electronic products, the work of screw locking in the limited space is difficult and time-consuming, and thus needs to be improved.

The present invention provides an expansion box suitable for detachably setting an expansion card. The expansion card includes a panel and can be displaced relative to the expansion box along a first direction. The expansion box includes a bracket and a stop assembly. The bracket includes a front frame portion and a side plate connected to each other, and the side plate is provided for a partial abutment of the panel of the expansion card. The stop assembly can be displaced on the side plate along a second direction perpendicular to the first direction, and the stop assembly can be displaced between a first position and a second position along the second direction. When the stop assembly is in the first position, the range of overlap between the stop assembly and the side plate is larger than the range of overlap between the stop assembly and the side plate when the stop assembly is in the second position, and when the stop assembly is in the first position, it limits the expansion card from being displaced along the first direction and disengaging from the bracket.

Thus, when the stopper assembly is located at the first position, a part of the side plate of the bracket is exposed for the expansion card to be freely assembled or separated from the bracket, and the panel of the expansion card abuts against the exposed part of the side plate to be assembled on the bracket. When the stopper assembly is linearly displaced to the second position, the stopper assembly blocks the part of the expansion card abutting against the side plate to limit the expansion card from being separated from the bracket. The positioning or release state of the expansion card can be changed through the linear displacement of the stopper assembly, thereby improving the convenience of disassembling the expansion card from the bracket.

In some embodiments, the aforementioned stop assembly includes a first component and a second component, the first component is displaceably disposed on one side of the side plate along the second direction, and the second component is combined with the first component and is located on the other side of the side plate.

In some embodiments, the aforementioned stop assembly further includes a first coupling member and a second coupling member, and the first member includes a guide groove, the first coupling member is penetrated through the side plate and the guide groove, the second coupling member is coupled to the first coupling member, and the guide groove extends along the second direction.

In some embodiments, the aforementioned perpendicular first direction and second direction are the third direction, the side panel includes a first positioning portion, the second component includes two second combining portions, a flexible portion and a second positioning portion, the two second combining portions are located on both sides of the flexible portion in the third direction and are separated from each other, the second positioning portion is located on the flexible portion, and when the stop assembly is located in the first position, the first positioning portion is located at the second positioning portion to limit the displacement of the second component along the second direction.

In some embodiments, the second component further includes two cutouts, and the two cutouts are respectively located between the two second coupling portions and the flexible portion.

In some embodiments, the two cutouts are located on two sides of the flexible portion in the third direction.

In some embodiments, the first component includes two first combining portions, the two first combining portions are located at different positions in the third direction and are separated from each other, and the two first combining portions of the first component are combined with the two second combining portions of the second component.

In some embodiments, the first component further includes an extension portion, the extension portion is located between the two first coupling portions, the second component further includes a through hole, the through hole is located in the flexible portion, the extension portion passes through the through hole and has a distance between it and a side of the second component away from the first component.

In some embodiments, the second component further includes a through portion, which is disposed on the flexible portion and is located at two opposite sides of the second positioning portion in the second direction as well as the through opening.

The present invention also provides an electronic device, comprising a chassis, the aforementioned expansion box and an expansion card. The expansion box is arranged on the chassis. The expansion card can be detachably arranged on a bracket of the expansion box.

Referring to Figures 1 to 3, Figure 1 is a schematic diagram of an embodiment of an expansion box of the present invention with an expansion card installed and located in a first position; Figure 2 is a schematic diagram of an embodiment of an expansion box of the present invention in a second position; and Figure 3 is a schematic diagram of a three-dimensional structure explosion of an embodiment of an expansion box of the present invention. The present invention provides an expansion box for detachably arranging an expansion card 30.

Referring to FIG. 2 , the expansion tray of the present invention is provided for detachably mounting an expansion card 30 including a panel 32, and the expansion tray clamps and positions or releases the expansion card 30 through a linear displacement operation. In some embodiments, the expansion card 30 includes a main body 31 and a panel 32, the panel 32 is disposed on one side of the main body 31, and the panel 32 includes a front portion 321 and abutting portion 322 connected to each other, and the front portion 321 and the abutting portion 322 are integrally connected at an angle. In some embodiments, the expansion card 30 may be, but is not limited to, a PCIe interface card, a display card, or other expansion cards 30.

Referring to FIGS. 1 to 3 , the expansion box of the present invention is suitable for the expansion card 30 to be displaced along the first direction D1, and the expansion box includes a bracket 10 and a stopper assembly 20. The bracket 10 includes a front frame portion 11 and a side plate 12 connected to each other, and the side plate 12 is used for the panel 32 of the expansion card 30 to abut. The stopper assembly 20 can be slidably arranged on the side plate 12 along a second direction D2 perpendicular to the first direction D1, and the stopper assembly 20 can slide between a first position L1 and a second position L2 along the second direction D2. When the stopper assembly 20 is at the first position L1, the range of overlap with the side plate 12 is larger than the range of overlap with the side plate 12 when the stopper assembly 20 is at the second position L2.

Thus, when the stopper assembly 20 is located at the second position L2, a portion of the side plate 12 of the bracket 10 is exposed for the expansion card 30 to be freely assembled or separated from the bracket 10. When the expansion card 30 is assembled in the bracket 10, the panel 32 of the expansion card 30 abuts against the exposed portion of the side plate 12. When the stopper assembly 20 is linearly displaced to the first position L1, the stopper assembly 20 shields the portion of the expansion card 30 abutting against the side plate 12 and can restrict the expansion card 30 from being separated from the bracket 10. The positioning or release state of the expansion card 30 can be changed through the linear displacement of the stopper assembly 20, thereby improving the convenience of assembling and disassembling the expansion card 30 from the bracket 10.

1 , the bracket 10 is suitable for being assembled in a chassis C of an electronic device to carry an expansion card 30 . In some embodiments, the electronic device includes a chassis C, the bracket 10 is disposed in the chassis C, and a plurality of brackets 10 may be disposed in the chassis C to increase the number of expansion cards 30 that can be configured.

Referring to FIGS. 1 to 3 , in some embodiments, the front frame 11 and the side plate 12 of the bracket 10 are connected at an angle, the side plate 12 extends toward one side of the front frame 11 at an angle relative to the front frame 11, and the expansion card 30 is assembled on the other opposite side of the front frame 11 of the bracket 10. In these embodiments, the angle between the front portion 321 and the abutting portion 322 of the panel 32 of the expansion card 30 corresponds to the angle between the front frame 11 and the side plate 12 of the bracket 10, so that when the expansion card 30 is assembled to the bracket 10, the front portion 321 of the panel 32 of the expansion card 30 abuts against the front frame 11 of the bracket 10, and the abutting portion 322 of the panel 32 abuts against the side plate of the bracket 10. In some embodiments as shown in FIG. 1 and FIG. 2 , the front portion 321 and the abutting portion 322 of the panel 32 of the expansion card 30 are vertically connected.

Referring to FIGS. 1 to 3 , in some embodiments, the front frame 11 of the bracket 10 includes a plurality of through openings 111, and the front portion 321 of the panel 32 of the expansion card 30 may be a complete plane or configured with connection ports. In these embodiments, when the expansion card 30 is assembled to the bracket 10, the panel 32 includes the connection ports of the expansion card 30, and the connection ports of the expansion card 30 can pass through the openings 111 of the front frame 11 to facilitate the use of the connection ports, such as for other external devices or external cables to electrically connect to the connection ports. When the front portion 321 of the panel 32 of the expansion card 30 is a complete plane, the front portion 321 of the panel 32 of the expansion card 30 can cover the opening 111 of the front frame 11, providing a dust-proof effect when the bracket 10 is not assembled with the expansion card 30, thereby preventing dust from entering the expansion tray through the opening 111.

Referring to FIGS. 1 to 3 , in some embodiments, the blocking assembly 20 includes a first component 21 and a second component 22. The first component 21 is displaceably disposed on one side of the side plate 12 along a second direction D2, and the second component 22 is coupled to the first component 21 and is located on the other side of the side plate 12. Thus, by pulling the first component 21 and the second component 22 along the second direction D2, the range of the blocking assembly 20 overlapping the side plate 12 can be changed to block the expansion card 30 or release the expansion card 30.

Referring to Figures 3 to 6, Figure 4 is a three-dimensional cross-sectional schematic diagram drawn along the 4-4 cut line in Figure 1; Figure 5 is a partial enlarged view of the circled area 5 in Figure 4; and Figure 6 is a planar schematic diagram of Figure 5. In some embodiments, the first component 21 and the second component 22 are respectively sheet structures, and the lengths of the first component 21 and the second component 22 in the second direction D2 are greater than the extension length of the side plate 12 in the second direction D2. Here, the first component 21 and the second component 22 are respectively against the opposite sides of the side plate 12, and the first component 21 and the second component 22 partially protrude from one end of the side plate 12 in the second direction D2. In these embodiments, the first component 21 and the second component 22 are combined with each other at their portions protruding from the side panel 12 in the second direction D2, while the other ends of the first component 21 and the second component 22 in the second direction D2 are separated from each other to accommodate the side panel 12 of the bracket 10 and the abutting portion 322 of the panel 32 of the expansion card 30 and to be linearly displaced relative to the side panel 12 along the second direction D2. That is, when the blocking assembly 20 is linearly displaced to the second position L2, the first component 21 and the second component 22 jointly clamp the side panel 12 and the abutting portion 322 and limit the side panel 12 and the abutting portion 322 between the first component 21 and the second component 22.

Referring to FIG. 3 in conjunction with FIG. 7 and FIG. 8 , FIG. 7 is a three-dimensional cross-sectional schematic diagram drawn along the 7-7 section line in FIG. 1 ; and FIG. 8 is a planar schematic diagram of FIG. 7 . In some embodiments, the side plate 12 of the bracket 10 includes a bolt positioning hole 123, the stop assembly 20 further includes a first coupling member 23 and a second coupling member 24, and the first member 21 includes a guide groove 211. In these embodiments, the first coupling member 23 includes a first head 231 and a bolt 232 connected to each other, the bolt 232 has an internal threaded hole extending along the first direction D1, the bolt positioning hole 123 is a through hole corresponding to the outer shape of the bolt 232, and the position of the bolt positioning hole 123 in a third direction D3 perpendicular to the first direction D1 and the second direction D2 is the same as the position of the guide groove 211 in the third direction D3. The first coupling member 23 passes through the bolt positioning hole 123 of the side plate 12 with the bolt portion 232, and is limited to a side of the side plate 12 close to the second component 22 with the first head portion 231. The guide groove 211 of the first component 21 is a through long groove extending along the second direction D2. The second coupling member 24 includes a second head portion 241 and a bolt 242 connected to each other. The bolt 242 of the second coupling member 24 passes through the guide groove 211 from the side of the first component 21 away from the side plate 12 and is locked to the inner threaded hole of the bolt portion 232 of the first coupling member 23. The second head portion 241 is limited to a side of the first component 21 away from the side plate 12. Thus, since the first component 21 is inserted into the bolt 242 of the second coupling member 24 by the guide groove 211 extending along the second direction D2, and since the first coupling member 23 and the second coupling member 24 are positioned on the side plate 12 by the bolt positioning hole 123, the first component 21 can be guided by the guide groove 211 and stably displaced between the first position L1 (as shown in FIG. 8 ) and the second position L2 (as shown in FIG. 10 ) relative to the side plate 12 along the second direction D2.

Referring to FIG. 3 , in some embodiments, the side panel 12 includes a first positioning portion 121, the first component 21 includes a plurality of first coupling portions 212 (hereinafter, two first coupling portions 212 are taken as an example), each first coupling portion 212 is located at a different position in the third direction D3 and is separated from each other, the second component 22 includes a plurality of second coupling portions 221, a flexible portion 222 and a second positioning portion 223, wherein the second coupling portions 221 and the number of the second coupling portions 221 are the same as the number of the first coupling portions 212, and the two second coupling portions 221 are taken as an example, the two second coupling portions 221 are located on both sides of the flexible portion 222 in the third direction D3 and are separated from each other, and the second positioning portion 223 is located on the flexible portion 222.

Referring to FIG. 3 , the first component 21 is coupled to the second coupling portion 221 of the second component 22 by each first coupling portion 212, thereby the first component 21 and the second component 22 are displaced synchronously. In some embodiments, the stopper assembly 20 further includes a third coupling member 25, and the first coupling portion 212 and the second coupling portion 221 are coupled to each other through the third coupling member 25. In some embodiments, the third coupling member 25 is described by taking a rivet as an example, and the first coupling portion 212 and the second coupling portion 221 are riveted through the third coupling member 25 of the rivet type, but the present invention is not limited thereto. That is to say, the first coupling portion 212 and the second coupling portion 221 are not necessarily coupled to each other through the third coupling member 25. In other embodiments, the first coupling portion 212 and the second coupling portion 221 may be coupled to each other by respectively forming mating structures (such as but not limited to a convex-concave mating structure or a mating structure of a hook and a hole) on the surfaces facing each other.

That is, when the first component 21 moves along the second direction D2 relative to the side plate 12 on which the first coupling member 23 and the second coupling member 24 are installed through the guide groove 211, the second component 22 coupled to the first component 21 will also be linked to move along the second direction D2 relative to the side plate 12, and the flexible portion 222 of the second component 22 is itself made of an elastic material. To further explain, the flexible portion 222 is partially separated from the second coupling portion 221 and has flexibility. Therefore, when the flexible portion 222 is elastically deformed, the second coupling portion 221 will not be elastically deformed and separated from the first coupling portion 212. In these embodiments, when the stopper assembly 20 is located at the first position L1 (as shown in FIG. 5 ) and the flexible portion 222 is not subjected to external force and is in an elastic recovery position, at this time, the second positioning portion 223 of the second component 22 is positioned at the first positioning portion 121 of the side plate 12 to limit the displacement of the second component 22 along the second direction D2. That is, when the stopper assembly 20 is located at the first position L1 (as shown in FIG. 5 ) and the flexible portion 222 is not subjected to external force and the second positioning portion 223 is in an elastic recovery position, the second component 22 is positioned at the first positioning portion 121 of the side plate 12 by the second positioning portion 223. The second component 22 is limited by the interference fit of the portion 121, and the first component 21 combined with the second component 22 is also limited, thereby limiting the stop assembly 20 at the first position L1. When an external force is applied to the flexible portion 222 of the second component 22 to elastically deform the flexible portion 222 and drive the second positioning portion 223 to move from the elastic recovery position to an elastic deformation position, the positioning of the second positioning portion 223 and the first positioning portion 121 of the side plate 12 can be released (as shown in Figures 9 and 10), so that the stop assembly 20 can move relative to the side plate 12 along the second direction D2. Thus, the first positioning portion 121 and the second positioning portion 223 allow the blocking assembly 20 to be positioned and locked on the side plate 12 at the first position L1, thereby improving the stability of the blocking assembly 20 at the first position L1 and further improving the stability of the expansion card 30 assembled on the bracket 10.

Referring to FIG. 3 , in some embodiments, the second component 22 includes a plurality of cutouts 224 (hereinafter, two cutouts 224 are taken as an example), wherein the number of the cutouts 224 corresponds to the number of the second coupling portions 221 , and the two cutouts 224 are respectively located between the two second coupling portions 221 and the flexible portion 222 . In these embodiments, each cutout 224 extends along the second direction D2 and is located on both sides of the flexible portion 222 in the third direction D3, whereby the flexible portion 222 and each second coupling portion 221 are separated from each other and are not easily affected by the coupling of the second coupling portion 221 with the first coupling portion 212 which is not easily elastically deformed. The flexible portion 222 still has the ability to slightly elastically deform due to the flexible characteristics of its own material, and the flexible portion 222 undergoes elastic deformation, thereby preventing the second coupling portions 221 from moving due to the elastic deformation of the flexible portion 222.

Referring to FIG. 3 , in some embodiments, the first positioning portion 121 of the side plate 12 and the second positioning portion 223 of the second component 22 are respectively a through hole and a convex portion. In some embodiments as shown in FIG. 3 , the first positioning portion 121 is a through hole, and the second positioning portion 223 is a convex portion protruding along the first direction D1, but the present invention is not limited thereto. In other embodiments, the first positioning portion 121 of the side plate 12 is configured as a convex portion, and the second positioning portion 223 of the second component 22 is configured as a through hole to achieve the same purpose.

Referring to FIGS. 3 to 6 , in some embodiments, the first component 21 further includes an extension portion 213, and the second component 22 further includes a through-hole 225. In the third direction D3, the extension portion 213 is located between the two first coupling portions 212, and the through-hole 225 is located on the flexible portion 222 between the two second coupling portions 221. The extension portion 213 passes through the through-hole 225 on the flexible portion 222 and has a distance from a side of the second component 22 away from the side panel 12. Thus, when the user wants to release the positioning of the first positioning portion 121 and the second positioning portion 223, force can be applied to the flexible portion 222 of the second component 22 to make the flexible portion 222 elastically deform and move toward the extension portion 213, thereby driving the second positioning portion 223 to separate from the first positioning portion 121 to release the positioning of the first positioning portion 121 and the second positioning portion 223.

Referring to FIG. 3 , in some embodiments, the first component 21 further includes a supporting portion 214, which protrudes from a surface of the first component 21 facing the side plate 12 along the first direction D1. In these embodiments, the supporting portion 214 and the extending portion 213 are located on opposite sides of the first component 21 in the second direction D2, and in the third direction D3, the supporting portion 214 is located between the two first coupling portions 212. In some embodiments as shown in FIG. 3 , the extension range of the supporting portion 214 in the second direction D2 is greater than 1/2 of the overall width of the first component 21 in the second direction D2. Thus, when the first component 21 is combined with the second component 22, the supporting portion 214 of the first component 21 abuts against the side panel 12. Through the large-area contact between the supporting portion 214 and the side panel 12, the first component 21 is stably attached to the side panel 12 without being deformed or displaced along the first direction D1. On the other hand, the second component 22 further includes a stabilizing portion 227, which is disposed between the two second combining portions 221, and the stabilizing portion 227 is disposed at one end of the second component 22 relative to the flexible portion 222. When the stop assembly 20 is in the first position L1, the supporting portion 214 of the first component 21 and the stabilizing portion 227 of the second component 22 jointly clamp the side plate 12 and the abutting portion 322, and when the stop assembly 20 is in the second position L2, the supporting portion 214 of the first component 21 and the stabilizing portion 227 of the second component 22 jointly clamp the side plate 12, so that the stop assembly 20 is not easy to shake whether in the first position L1 or the second position L2, thereby improving the stability of the stop assembly 20. In this way, when the user wants to apply force to the flexible portion 222 of the second component 22 to deform the flexible portion 222, the user can support the extension portion 213 of the first component 21 and then apply force to the flexible portion 222 of the second component 22. In specific use, for example, the user can support the extension portion 213 with the thumb and then press the flexible portion 222 with the index finger to deform the flexible portion 222 toward the extension portion 213 and away from the side plate 12 to release the positioning of the first positioning portion 121 and the second positioning portion 223 (as shown in FIG. 9). In this way, a force support point can be provided for the user to operate, the convenience of operation is improved, and the user can save time in removing and installing screws and locking.

Furthermore, after the user releases the positioning of the first positioning portion 121 and the second positioning portion 223 through the flexible portion 222 and the extending portion 213, an external force can be applied simultaneously to pull the flexible portion 222 and the extending portion 213 to move along the second direction D2. When the flexible portion 222 and the extending portion 213 are pulled to move to the second position L2 (as shown in FIG. 11 ), the abutting portion 322 of the panel 32 of the expansion card 30 is exposed and can be removed from the bracket 10 by moving along the first direction D1 by an external force.

In some embodiments, referring to FIG. 3 , the second component 22 further includes a through portion 226, which is disposed on the flexible portion 222 and is located on both sides of the second positioning portion 223 in the second direction D2 together with the through opening 225. Thus, the strength of the flexible portion 222 is further weakened by the through portion 226, ensuring that the flexible portion 222 can be deformed when subjected to force to release the positioning between the first positioning portion 121 and the second positioning portion 223, thereby ensuring smooth operation.

In some embodiments, referring to FIG. 2 and FIG. 3 , the bracket 10 further includes a boss 122, which is disposed on the side plate 12 along the first direction D1 and has an extended length. In these embodiments, the number or spacing of the bosses 122 depends on the original screw holes of the abutment portion 322 of the expansion card 30. Thus, the expansion card 30 can be disposed not only on the bracket 10 generally fixed by screws, but also on the bracket 10 positioned by the stopper assembly 20. When the boss 122 is used on the bracket 10 positioned by the stopper assembly 20, the boss 122 can provide a preliminary positioning effect for the expansion card 30, thereby improving the convenience of assembly.

Although the present disclosure has been disclosed as above with some embodiments, it is not intended to limit the present disclosure. Anyone with ordinary knowledge in the relevant technical field may make some changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the scope of patent protection of this case shall be subject to the scope of the patent application attached to this specification.

10: bracket 11: front frame 111: opening 12: side plate 121: first positioning portion 122: boss 123: bolt positioning hole 20: stop assembly 21: first component 211: guide groove 212: first coupling portion 213: extension portion 214: support portion 22: second component 221: second coupling portion 222: flexible portion 223: second positioning portion 224: cutout 225: through-hole 226: through-portion 227: stabilizing portion 23: first coupling member 231: first head portion 232: bolt portion 24: second coupling member 241: second head portion 242: bolt 25: Third joint 30: Expansion card 31: Main body 32: Panel 321: Front part 322: Abutment part D1: First direction D2: Second direction D3: Third direction L1: First position L2: Second position C: Chassis

Figure 1 is a schematic diagram of an embodiment of the expansion box of the present invention, in which an expansion card is installed and located in the first position. Figure 2 is a schematic diagram of an embodiment of the expansion box of the present invention, in which an expansion card is installed and located in the second position. Figure 3 is a schematic diagram of the three-dimensional structure decomposition of an embodiment of the expansion box of the present invention. Figure 4 is a schematic diagram of a three-dimensional cross-section drawn along the 4-4 cutting plane line in Figure 1. Figure 5 is a partial enlarged view of the circled area 5 in Figure 4. Figure 6 is a schematic diagram of a plane of Figure 5. Figure 7 is a schematic diagram of a three-dimensional cross-section drawn along the 7-7 cutting plane line in Figure 1. Figure 8 is a schematic diagram of a plane of Figure 7. Figure 9 is a schematic diagram of an operation subsequent to Figure 6. Figure 10 is a schematic diagram of an operation subsequent to Figure 8. Figure 11 is a schematic diagram of an embodiment of the expansion box of the present invention, in which an expansion card is installed and located in the second position.

10: Bracket

11: Front frame

111: Open mouth

12: Side panels

121: First positioning part

122: convex column

123: Bolt positioning hole

20: Stop assembly

21: First part

211:Guide groove

212: First joint

213: Extension

214: Support part

22: Second part

221: Second junction

222: Flexible part

223: Second positioning part

224:Incision

225: Piercing

226: Wearing Department

227: Stability Department

23: First bonding piece

231: First Head

232: Bolt

24: Second bonding piece

241: Second head

242: Bolts

25: The third connecting piece

30: Expansion card

322: Abutment

D1: First direction

D2: Second direction

D3: Third direction

Claims (9)

An expansion box is suitable for detachably arranging an expansion card, the expansion card includes a panel and can be displaced along a first direction relative to the expansion box, the expansion box includes: a bracket, including a front frame portion and a side plate connected to each other, the side plate is used for a partial abutment of the panel of the expansion card; and a stopper assembly, including a first component and a second component, the first component can be displaced along a second direction perpendicular to the first direction and arranged on the expansion box. One side of the side plate, the second component is combined with the first component and is located on the other side of the side plate, the stop assembly can be displaced between a first position and a second position along the second direction, the range of overlap between the stop assembly and the side plate when in the first position is larger than the range of overlap between the stop assembly and the side plate when in the second position, and the stop assembly limits the expansion card from displacing along the first direction to leave the bracket when in the first position. As described in claim 1, the stop assembly further comprises a first coupling member and a second coupling member, and the first member comprises a guide groove, the first coupling member penetrates the side plate and the guide groove, the second coupling member is coupled to the first coupling member, and the guide groove extends along the second direction. The expansion box as described in claim 1, wherein the first direction and the second direction are perpendicular to each other as a third direction, the side plate includes a first positioning portion, the second component includes two second coupling portions, a flexible portion and a second positioning portion, the two second coupling portions are located on both sides of the flexible portion in the third direction and are separated from each other, the second positioning portion is located on the flexible portion, and when the stop assembly is located in the first position, the first positioning portion is located on the second positioning portion to limit the displacement of the second component along the second direction. The expansion box as described in claim 3, wherein the second component further comprises two cutouts, the two cutouts being located respectively between the two second coupling portions and the flexible portion. An expansion box as described in claim 4, wherein the two cutouts are located on both sides of the flexible portion in the third direction. The expansion box as described in claim 3, wherein the first component includes two first coupling parts, the two first coupling parts are located at different positions in the third direction and are separated from each other, and the two first coupling parts of the first component are coupled to the two second coupling parts of the second component. The expansion box as described in claim 6, wherein the first component further includes an extension portion, the extension portion is located between the two first joint portions, the second component further includes a through hole, the through hole is located in the flexible portion, the extension portion passes through the through hole and has a distance from a side of the second component away from the first component. The expansion box as described in claim 7, wherein the second component further comprises a through portion, the through portion is disposed on the flexible portion and is located on two opposite sides of the second positioning portion in the second direction as well as the through opening. An electronic device comprises: a chassis; an expansion box as in any one of claims 1 to 8, arranged in the chassis; and an expansion card, detachably arranged in a bracket of the expansion box.

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