TW202121956A - Mount structure for expansion card and circuit assembly - Google Patents

Abstract

A mount structure for expansion card includes a first rail, a second rail, a locking element and an operating element. The first rail and second rail are configured to fix on the circuit board. The first rail and the second rail surround a sliding groove respectively. The two sliding grooves is configured to slide for expansion card to mount expansion card on socket of circuit board. The locking element slidably disposes on the first rail to move close to or far away a bearing plate of the first rail. The operating element pivots on the locking element and is configure to make the locking element move between a locking position and a releasing position. When the locking element locates at the locking position, the locking part locates in the sliding groove of the first rail to be configured to lock the locking slot of the expansion card. When the locking element locates at the releasing position, the locking part detach from the sliding groove to be configured to detach from the locking slot of the expansion.

Description

Expansion card installation structure and circuit assembly

The present invention relates to an expansion card installation structure and circuit assembly, in particular to an expansion card installation structure and circuit assembly including sliding rails.

The Open Compute Project (OCP) is an organization that shares data center product designs between companies. Servers or expansion cards related to open computing projects have been widely used in various levels. Generally speaking, expansion cards related to open computing projects are inserted into slots on the circuit board through guide rails on the circuit board.

However, when the expansion card is inserted into the slot of the circuit board, it is only supported by the slot and the sliding rail, so that the expansion card may shake or even fall out of the slot when the server is operating. Therefore, technicians need to find a way to firmly install the expansion card related to the open computing project in the slot of the circuit board through the sliding rail.

The invention provides an expansion card installation structure and a circuit assembly to improve the stability of the expansion card installed in the slot of the circuit board through the slide rail.

The expansion card installation structure disclosed in an embodiment of the present invention is used for installing an expansion card in a slot of a circuit board. The expansion card installation structure includes a first slide rail, a second slide rail, a first fastener and a first operating member. The first slide rail and the second slide rail are used for fixing to the circuit board. The first slide rail and the second slide rail each include a carrying plate and a cover plate. The cover plates are respectively connected to the bearing plates and respectively surround the two sliding grooves with the bearing plates. These sliding slots are used for sliding the expansion card to install the expansion card in the slot of the circuit board. The cover plate of the first slide rail includes a through slot. The through groove is located on one side of the sliding groove away from the bearing plate, and extends in a direction close to the bearing plate to communicate with the sliding groove. The first buckle is slidably located in the through slot of the cover plate of the first slide rail and is relatively close to or far from the bearing plate of the first slide rail. The first operating member is pivotally connected to the first buckle, and is used for driving the first buckle to move between a buckle position and a release position. When the first buckle is in the buckle position. The first fastener is located in the sliding groove of the first sliding rail and is used for engaging with a groove of the expansion card. When the first buckle is in the release position, the first buckle detaches from the sliding groove of the first sliding rail and is used to detach from the groove of the expansion card.

The circuit assembly disclosed in another embodiment of the present invention includes a circuit board, an expansion card, a first slide rail, a second slide rail, a first fastener, and a first operating member. The circuit board includes a board body and a slot arranged on the board body. The expansion card is inserted in the slot of the circuit board. The first slide rail and the second slide rail are used for fixing to the circuit board. The first slide rail and the second slide rail each include a carrying plate and a cover plate. The cover plates are respectively connected to the bearing plates and respectively surround the two sliding grooves with the bearing plates. These sliding slots are used for sliding the expansion card to install the expansion card in the slot of the circuit board. The cover plate of the first slide rail includes a through slot on a side far away from the carrying plate. The through groove is located on one side of the sliding groove away from the bearing plate, and extends in a direction close to the bearing plate to communicate with the sliding groove. The first buckle is slidably located in the through slot of the cover plate of the first slide rail and is relatively close to or far from the bearing plate of the first slide rail. The first operating member is pivotally connected to the first buckle, and is used for driving the first buckle to move between a buckle position and a release position. When the first buckle is in the buckling position, the first buckle is in the sliding groove of the first slide rail and is used to engage with a slot of the expansion card. When the first buckle is in the release position, the first buckle The fastener detaches from the sliding groove of the first sliding rail and is used to detach from the card slot of the expansion card.

According to the expansion card installation structure disclosed in the above embodiment, only through the design of the operating member pivoted on the buckle, there is no reset design of the elastic member, so that the buckle can be driven from the buckle position by the pivoting of the operating member Move to the release position so that the expansion card can be easily slid into the slide slot and inserted into the slot. Then, when the slot of the expansion card is inserted into the slot and the slot of the expansion card is aligned with the buckle, the buckle can automatically return from the release position to the buckle position under the gravitational pull.

The above description of the content of the present invention and the description of the following embodiments are used to demonstrate and explain the principle of the present invention, and to provide a further explanation of the scope of the patent application of the present invention.

The detailed features and advantages of the present invention are described in detail in the following embodiments. The content is sufficient to enable anyone familiar with the relevant art to understand the technical content of the present invention and implement it accordingly, and is based on the content disclosed in this specification, the scope of patent application and the drawings. Anyone who is familiar with relevant skills can easily understand the purpose and advantages of the present invention. The following examples further illustrate the viewpoints of the present invention in detail, but do not limit the scope of the present invention by any viewpoint.

Please refer to Figure 1 to Figure 3. Fig. 1 is an exploded view of a circuit assembly according to a first embodiment of the present invention. Fig. 2 is an exploded schematic view of the first sliding rail, the first locking member, the first operating member and the pivot in Fig. 1. Fig. 3 is a schematic partial cross-sectional view of Fig. 1.

In this embodiment, the circuit assembly 10 includes an expansion card 100, a circuit board 200, and an expansion card fixing structure 250. The circuit board 200 includes a board body 201 and a slot 202. The board body 201 of the circuit board 200 has a top surface 203, a bottom surface 204, a slot 205, a first wall surface 206 and a second wall surface 207. The top surface 203 and the bottom surface 204 face away from each other. The slot 205 penetrates the top surface 203 and the bottom surface 204. The first wall surface 206 and the second wall surface 207 are located in the slot 205 and face each other. The slot 202 is disposed on the board 201 and located in the slot 205. The expansion card 100 is accommodated in the slot 205.

In this embodiment, the expansion card fixing structure 250 includes a first sliding rail 300, a second sliding rail 400, a first fastener 500 and a first operating member 600. It also includes a pivot 700.

The first sliding rail 300 and the second sliding rail 400 are respectively fixed on the first wall surface 206 and the second wall surface 207 of the circuit board 200 and are used for the expansion card 100 to slide.

Of course, the circuit board 200 is not limited to including the slot 205, and in other embodiments, the circuit board does not include the slot. Furthermore, in the embodiment where the circuit board does not include a slot, the slot, the first sliding rail, and the second sliding rail are instead arranged on the top surface of the circuit board.

Since the first slide rail 300 and the second slide rail 400 are similar in structure, for the convenience of description, only the detailed structure of the first slide rail 300 is exemplified below.

The first sliding rail 300 includes a carrying plate 310 and a cover plate 320. The cover plate 320 is connected to the carrying plate 310 and surrounds the sliding groove 330 together with the carrying plate 310. The sliding slot 330 is used for sliding the expansion card 100 to install the expansion card 100 in the slot 202 of the circuit board 200.

The cover plate 320 of the first sliding rail 300 includes a through slot 321, the through slot 321 is located on a side of the sliding groove 330 away from the supporting plate 310, and extends in a direction close to the supporting plate 310 to communicate with the sliding groove 330.

The first fastener 500 is slidably located in the through slot 311 of the cover plate 320 of the first slide rail 300 and is relatively close to or far from the supporting plate 310 of the first slide rail 300.

The first operating member 600 is pivotally connected to the first buckle 500 and used to drive the first buckle 500 to move between a buckling position and a release position. When the first buckle 500 is at the buckling position, A buckle 500 is located in the sliding groove 330 of the first slide rail 300 and is used for engaging with a groove 101 of the expansion card 100. When the first buckle 500 is in the release position, the first buckle 500 is separated from the first The sliding groove 330 of the sliding rail 300 is used to escape the card slot 101 of the expansion card 100.

The first operating member 600 includes a shaft hole 610, a first bearing surface 620 and a second bearing surface 630. The distance D1 from the first bearing surface 620 to the axis A of the shaft hole 610 is smaller than the distance D2 from the second bearing surface 630 to the axis A of the shaft hole 610. The pivot 700 penetrates through the shaft hole 610 and the first locking member 500 so that the first operating member 600 is pivotally connected to the first locking member 500. When the first bearing surface 620 of the first operating member 600 abuts the cover 320, the first locking member 500 is located at the locking position. In other words, the first fastener 500 is located in the sliding slot 330 of the first sliding rail 300 and is used to engage with the slot 101 of the expansion card 100. When the second bearing surface 630 of the first operating member 600 abuts against the cover 320, the first locking member 500 is located at the release position. In other words, the first fastener 500 is separated from the sliding groove 330 of the first sliding rail 300 and used to escape from the card slot 101 of the expansion card 100.

In this embodiment, the cover 320 of the first sliding rail 300 may further include two release notches 322. The release notches 322 are located on opposite sides of the through slot 321. The first buckle 500 may further include two limiting protrusions 510. When the first buckle member 500 is in the buckling position, the limiting protrusions 510 are located on the side of the through slot 321 of the first slide rail 300 close to the carrying plate 310, and the limiting protrusions 510 abut the cover plate 320 Close to one side of the carrying plate 310 to maintain the first buckle 500 in the buckling position, or the first operating member 600 drives the first buckle 500 to rotate relative to the first slide rail 300 to drive the limiting protrusions 510 They are respectively aligned with the release notches 322 so that the first buckle 500 is located at the release position.

In this embodiment, the number of the release notch 322 and the limiting protrusion 510 is two, but it is not limited thereto. In other embodiments, the release notch and the limiting protrusion may also be single.

In this embodiment, the first buckle 500 may further include two stop blocks 520. The stop block 520 is located at one end of the limiting protrusion 510. And when the first buckle 500 slides to the release position, the stop block 520 is used to abut the cover 320 on a side close to the carrying plate 310 to prevent the first buckle 500 from being detached.

In this embodiment, the first buckle 500 may further include an inclined guide surface 530. The inclined guide surface 530 faces away from the slot 202 of the circuit board 200, and is used to be pushed by the expansion card 100 to make the first buckle 500 Slide towards the release position.

For the convenience of description, only the first sliding rail 300, the first fastener 500, and the first operating member 600 are used to illustrate the operation process of the expansion card 100 in the slot 202 of the circuit board 200.

Please refer to Figure 4 to Figure 8. 4 is a schematic cross-sectional view showing that the first fastener is in the released position and the expansion card is partially inserted into the chute. FIG. 5 is a schematic cross-sectional view of the first latch in the release position and the expansion card is fully inserted into the sliding slot. 6 is a schematic cross-sectional view of the first buckle in the buckle position and the expansion card is fully inserted into the sliding slot. FIG. 7 is a schematic top view of the first buckle in the buckling position and the limiting protrusion does not abut against the cover plate. FIG. 8 is a schematic cross-sectional view of the first buckle member at the buckling position and the limiting protrusion against the cover plate.

As shown in FIG. 4, when the user rotates the first operating member 600 in the direction X1 and causes the first operating member 600 to drive the first buckle member 500 up in the direction Y1, it is located outside the sliding groove 330 of the first slide rail 300 At this time, the expansion card 100 has to slide into the sliding groove 330 of the first sliding rail 300 along the direction Z1. As shown in FIG. 5, when the expansion card 100 continues to slide into the sliding slot 330 of the first sliding rail 300 along the direction Z1, the expansion card 100 will be installed in the slot 202 of the circuit board 200, and the card slot 101 of the expansion card 100 will be Align the position of the first fastener 500.

Then, as shown in FIG. 6, when the slot 101 of the expansion card 100 is aligned with the position of the first buckle 500, the user can rotate the first operating member 600 in the direction X2 and make the first operating member 600 drive The first buckle 500 moves downward along the direction Y2 and stops at the sliding groove 330 of the first sliding rail 300. In this way, the expansion card 100 is stopped by the first buckle 500 and maintains the state of being inserted into the slot 202.

As shown in FIG. 7, in the same state as FIG. 6, the first buckle 500 is located at the buckling position, but the limiting protrusion 510 is located under the through groove 321 and does not abut the cover 320 on the side of the carrying plate 310 . In other words, the first buckle 500 is currently maintained in the buckled position only by gravity.

As shown in FIG. 8, when the first buckle member 500 is in the buckling position, the user can rotate the first operating member 600 in the direction R, so that the limiting protrusion 510 deviates from the bottom of the through slot 321 and abuts against the cover 320 It is close to one side of the supporting board 310 to maintain the first buckle 500 at the buckling position. Conversely, if the expansion card 100 is to be taken out, the user can rotate the first operating member 600 so that the limiting protrusion 510 is located under the through slot 321 again. In this way, the first buckle 500 can be moved from the buckle position to the release position, so that the expansion card 100 can be withdrawn.

In this embodiment, only the first sliding rail 300 is provided with the first locking member 500 and the first operating member 600, but it is not limited to this. Please refer to FIG. 9, which is an exploded view of the circuit assembly according to the second embodiment of the present invention.

In this embodiment, the expansion card fixing structure 250a of the circuit assembly 10a includes a first sliding rail 300, a second sliding rail 400a, a first buckle 500, a first operating member 600, and a second buckle Piece 500a and a second operating piece 600a. Since the structure and connection relationship of the second slide rail 400a, the second locking member 500a and the second operating member 600a are similar to those of the first slide rail 300, the first locking member 500 and the first operating member 600, they will not be described again.

According to the expansion card installation structure disclosed in the above embodiment, only through the design of the operating member pivoted on the buckle, there is no reset design of the elastic member, so that the buckle can be driven from the buckle position by the pivoting of the operating member Move to the release position so that the expansion card can be easily slid into the slide slot and inserted into the slot. Then, when the slot of the expansion card is inserted into the slot and the slot of the expansion card is aligned with the buckle, the buckle can automatically return from the release position to the buckle position under the gravitational pull.

In some embodiments, the buckle has an inclined guide surface, so that when the expansion card is slid into the chute, the inclined guide surface of the buckle will be pushed by the expansion card and move from the buckle position to the release position by itself. In other words, the buckle member can move from the buckle position to the release position by itself without being driven by the operating member.

In some embodiments, the operating member has a first bearing surface and a second bearing surface that are kept at different distances from the rotation axis, so that the user can use the operating member to more effortlessly move the buckle from the buckling position to Release position.

Although the present invention is disclosed in the foregoing embodiments as above, it is not intended to limit the present invention. Anyone familiar with similar art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of patent protection for inventions shall be determined by the scope of patent applications attached to this specification.

10.10a: Circuit components 100: Expansion card 101: card slot 200: circuit board 201: Board body 202: Slot 203: top surface 204: Bottom 205: Slotting 206: The first wall 207: The second wall 250, 250a: Expansion card fixed structure 300: The first slide 310: Carrier plate 320: cover 321: piercing 322: release gap 330: Chute 400, 400a: second slide 500: The first fastener 500a: second snap fastener 510: Limit bump 520: Stop block 530: Guide slope 600: The first operation piece 600a second operating part 610: Shaft hole 620: The first bearing surface 630: second bearing surface 700: pivot A: axis D1, D2: distance X1, Y1, Z1, X2, Y2, R: direction

Fig. 1 is an exploded view of a circuit assembly according to a first embodiment of the present invention. Fig. 2 is an exploded schematic view of the first sliding rail, the first locking member, the first operating member and the pivot in Fig. 1. Fig. 3 is a schematic partial cross-sectional view of Fig. 1. 4 is a schematic cross-sectional view showing that the first fastener is in the released position and the expansion card is partially inserted into the chute. FIG. 5 is a schematic cross-sectional view of the first latch in the release position and the expansion card is fully inserted into the sliding slot. 6 is a schematic cross-sectional view of the first buckle in the buckle position and the expansion card is fully inserted into the sliding slot. FIG. 7 is a schematic top view of the first buckle in the buckling position and the limiting protrusion does not abut against the cover plate. FIG. 8 is a schematic cross-sectional view of the first buckle member at the buckling position and the limiting protrusion against the cover plate. Fig. 9 is an exploded view of the circuit assembly according to the second embodiment of the present invention.

310: Carrier plate

320: cover

321: piercing

322: release gap

330: Chute

500: The first fastener

510: Limit bump

520: Stop block

530: Guide slope

600: The first operation piece

610: Shaft hole

620: The first bearing surface

630: second bearing surface

700: pivot

A: axis

Claims (10)

An expansion card installation structure for electrically coupling an expansion card to a slot of a circuit board. The expansion card installation structure includes: A first slide rail and a second slide rail are fixed to the circuit board. The first slide rail and the second slide rail respectively include a bearing plate and a cover plate, and the cover plates are respectively connected to the bearing plates The two sliding grooves are respectively surrounded by the supporting boards, and the sliding grooves are used for sliding the expansion card to install the expansion card in the slot of the circuit board, and the cover plate of the first sliding rail It includes a through groove, the through groove is located on the side of the sliding groove away from the carrying plate, and extends in a direction close to the carrying plate to communicate with the sliding groove; a first fastener is slidably located on the first The slot of the cover plate of the slide rail is relatively close to or far from the bearing plate of the first slide rail; and a first operating member pivotally connected to the first buckle member and used to drive the first buckle The member moves between a buckle position and a release position. When the first buckle member is located at the buckle position, the first buckle member is located at the chute of the first slide rail for engaging with the expansion A card slot, when the first locking member is at the release position, the first locking member is separated from the sliding groove of the first slide rail to be used for separating from the card slot of the expansion card. For example, the expansion card installation structure described in item 1 of the scope of patent application further includes a pivot, and the first operating member includes a shaft hole, a first bearing surface and a second bearing surface, the first bearing surface The distance to the axis of the shaft hole is smaller than the distance from the second bearing surface to the axis of the shaft hole, and the pivot is penetrated through the shaft hole and the first buckle member, so that the first operating member is pivotally connected In the first fastening element, when the first bearing surface of the first operating element abuts against the cover plate, the first fastening element is located at the fastening position, when the first operating element of the first operating element When the two bearing surfaces abut against the cover plate, the first buckle is located at the release position. According to the expansion card installation structure described in claim 1, wherein the cover of the first slide rail includes at least one release notch, the release notch is located on one side of the slot, and the first buckle includes At least one limiting protrusion. When the first buckle is at the buckling position, the limiting protrusion is located on a side of the through slot close to the carrying plate, and the limiting protrusion abuts against the cover plate Close to one side of the carrying plate to maintain the first buckle in the buckling position, or the first operating member drives the first buckle to rotate relative to the first slide rail to drive the limiting protrusion It is aligned with the release notch so that the first buckle is located at the release position. For example, in the expansion card installation structure described in item 3 of the scope of patent application, the number of the at least one release notch and the at least one limiting protrusion are both two, and the release notches are respectively located on opposite sides of the slot, The limiting protrusions are respectively located on opposite sides of the first buckle. According to the expansion card installation structure described in the first item of the scope of patent application, the first buckle includes an inclined guide surface, and the inclined guide surface faces away from the slot of the circuit board. The expansion card installation structure described in item 1 of the scope of patent application further includes a second snap member and a second operating member. The cover plate of the second slide rail includes a through hole on the side far from the carrier plate. Slot, the second buckle is slidably located in the slot of the cover plate of the second slide rail and is relatively close to or far from the bearing plate of the second slide rail, the The second operating member is pivotally connected to the second buckle, and drives the second buckle to be relatively close to or away from the carrying plate of the second slide rail. A circuit component includes: A circuit board includes a board body and a slot arranged on the board body; an expansion card inserted into the slot of the circuit board; a first slide rail and a second slide rail for fixing to The circuit board, the first slide rail and the second slide rail each include a bearing plate and a cover plate, the cover plates are respectively connected to the bearing plates to respectively surround two sliding grooves with the bearing plates, The sliding grooves are used for sliding the expansion card to install the expansion card in the slot of the circuit board, the cover plate of the first sliding rail includes a through groove on a side away from the carrying board, and The groove is located on a side of the sliding groove away from the carrying plate, and extends in a direction close to the carrying plate to communicate with the sliding groove; a first fastener is slidably located on the cover plate of the first sliding rail The carrying plate that penetrates the slot and is relatively close to or far from the first slide rail; and a first operating member, pivotally connected to the first buckle member, and used to drive the first buckle member at a buckling position and Move between a release position, when the first buckle is located at the buckle position, the first buckle is located at the chute of the first slide rail to be engaged with a slot of the expansion card, when The first buckle is located at the release position, and the first buckle is detached from the sliding groove of the first sliding rail to detach from the groove of the expansion card. The circuit assembly described in item 7 of the scope of patent application, wherein the board body of the circuit board has a top surface, a bottom surface, a slot, a first wall surface and a second wall surface, and the top surface and the bottom surface are mutually Opposite, the slot penetrates the top surface and the bottom surface, the first wall surface and the second wall surface are located in the slot and face each other, the first slide rail and the second slide rail are respectively fixed to the first wall surface And the second wall surface, the expansion card is accommodated in the slot. For example, the circuit assembly described in item 7 of the scope of patent application further includes a pivot, and the first operating member includes a shaft hole, a first bearing surface and a second bearing surface, and the first bearing surface extends to the The distance between the axis of the shaft hole is smaller than the distance from the second bearing surface to the axis of the shaft hole, and the pivot is penetrated through the shaft hole and the first fastening member, so that the first operating member is pivotally connected to the The first buckle member, when the first bearing surface of the first operating member abuts the cover plate, the first buckle member is located at the buckling position, when the second bearing surface of the first operating member When the supporting surface abuts against the cover plate, the first buckle is in the release position. The circuit assembly according to item 7 of the scope of patent application, wherein the cover plate of the first slide rail includes at least one release notch, the release notch is located on one side of the through slot, and the first buckle includes at least one When the first buckle is located at the buckling position, the limit convex block is located on the side of the through slot close to the carrying plate, and the limit convex block abuts against the cover plate close to the One side of the bearing plate maintains the first buckle in the buckling position, or the first operating member drives the first buckle to rotate relative to the first slide rail to drive the limiting protrusion to align In the release gap, the first buckle is located at the release position.

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