TWI721663B - Mount structure for expansion card and circuit assembly - Google Patents

Abstract

A mount structure for expansion card configured to mount expansion card on socket of circuit board and including first slide rail, second slide rail, accommodation base, elastic component and positioning component. Accommodation base is disposed on side of side cover plate of first slide rail facing away from second slide rail and includes mount space. Mount space is connected to groove of first slide rail. Elastic component is disposed on accommodation base and located in mount space. Positioning component includes movable part and engage part. Movable part is movably disposed in mount space of accommodation base. Opposite ends of elastic component respectively press against accommodation base and movable part. Engage part protrudes from movable part and is located in groove of first slide rail so that the engage part is configured to be engaged in hole of expansion card.

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 to improve the stability of the expansion card installed in the slot of the circuit board through the sliding rail.

The expansion card installation structure disclosed in an embodiment of the present invention is used to install an expansion card in a slot of a circuit board. The expansion card installation structure includes a first sliding rail, a second sliding rail, a first accommodating seat, a first elastic element, and a first positioning 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 bearing plate, a side cover plate and a slide groove. The two side cover plates are respectively connected to the two supporting plates and respectively surround the two sliding grooves with the two supporting plates. The two sliding slots are used for sliding the expansion card to install the expansion card in the slot of the circuit board. The first accommodating seat is arranged on a side of the side cover plate of the first sliding rail opposite to the second sliding rail, and includes a first installation groove. The first installation groove is connected to the sliding groove of the first sliding rail. The first elastic element is disposed on the first accommodating seat and located in the first installation groove. The first positioning member includes a first movable part and a first buckle part. The first movable part is movably arranged in the first installation groove of the first accommodating seat. The opposite ends of the first elastic element abut against the first accommodating seat and the first movable part respectively. The first buckle portion protrudes from the first movable portion, and the first buckle portion is located in the sliding groove of the first sliding rail and is used for engaging with a 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 sliding rail, a second sliding rail, a receiving seat, an elastic element, and a positioning 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 to be fixed to the circuit board, and each includes a carrying plate, a side cover plate and a slide groove. The side cover plates are respectively connected to the bearing plate and respectively surround the sliding groove with the bearing plate. The sliding slot is used for sliding the expansion card to install the expansion card in the slot of the circuit board. The accommodating seat is arranged on the side cover plate of the first sliding rail far away from the second sliding rail, and includes a mounting groove. The installation groove is connected to the sliding groove of the first sliding rail. The elastic element is arranged on the accommodating seat and located in the installation groove. The positioning member includes a movable part and a buckle part. The movable part is movably arranged in the installation groove of the accommodating seat. The opposite ends of the elastic element respectively abut against the accommodating seat and the movable part. The buckle part protrudes from the movable part, and the buckle part is located in the sliding groove of the first sliding rail and is used for engaging with a groove of the expansion card.

According to the expansion card installation structure disclosed in the above embodiment, because the buckle portion protrudes from the movable portion, and the movable portion is slidably disposed in the installation groove of the accommodating seat, the buckle portion is movably located on the slide of the first slide rail. Slot, which is used to snap into the slot of the expansion card. In this way, the expansion card can be stably installed in the slot of the circuit board through the expansion card fixing structure. In addition, since the opposite ends of the elastic element abut against the accommodating seat and the movable part respectively, the movable part can make the convex part of the retractable installation groove protrude to the sliding groove of the first sliding rail by the elastic force of the elastic element.

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 provide a further explanation of the scope of the patent application of the present invention.

The detailed features and advantages of the present invention will be 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 according to 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 4. Fig. 1 is an exploded view of a circuit assembly according to a first embodiment of the present invention. FIG. 2 is a perspective view of the first sliding rail, the accommodating seat, the elastic element and the positioning member in FIG. 1. Fig. 3 is an exploded view of the first sliding rail, the accommodating seat, the elastic element and the positioning member in Fig. 2. 4 is a schematic cross-sectional view showing the guiding inclined surface of the expansion card pushing against the buckle portion.

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 received 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 receiving seat 500, an elastic element 600, and a positioning member 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 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 supporting plate 301, a side cover 302 and a sliding groove 303. The side cover plate 302 is connected to the supporting plate 301 and surrounds the sliding groove 303 together with the supporting plate 301. The sliding slot 303 is used for sliding the expansion card 100 to install the expansion card 100 in the slot 202 of the circuit board 200.

The accommodating seat 500 is disposed on a side of the side cover 302 of the first sliding rail 300 away from the second sliding rail 400, and includes a mounting groove 501 and a communication port 502. The installation groove 501 is connected to the sliding groove 303 of the first sliding rail 300 through the communication port 502.

In addition, in this embodiment, the accommodating seat 500 and the first sliding rail 300 are integrally formed, but the invention is not limited to this. In other embodiments, the accommodating seat and the first sliding rail are a combined structure.

The elastic element 600 is disposed in the accommodating seat 500 and located in the installation groove 501. In addition, the elastic element 600 is, for example, a compression spring.

The positioning member 700 includes a movable part 701, a buckle part 702, an operating part 703 and a mounting post 704.

The buckle part 702 protrudes from the movable part 701. The movable part 701 is slidably disposed in the installation groove 501 of the accommodating seat 500 and can be far away from or close to the sliding groove 303 of the first sliding rail 300. Therefore, when the movable portion 701 is close to the sliding groove 303 of the first sliding rail 300, the buckling portion 702 passes through the communication opening 502 and is located in the sliding groove 303 of the first sliding rail 300, so that the buckling portion 702 is used for engaging in the sliding groove 303 of the first sliding rail 300. A card slot 101 of the expansion card 100. When the movable part 701 is far away from the sliding groove 303 of the first sliding rail 300, the buckle part 702 retracts into the installation groove 501 of the receiving seat 500. In addition, in the extending direction D2 of the sliding groove 303 of the first sliding rail 300, the width W1 of the mounting groove 501 is greater than the width W2 of the movable portion 701 and the width W2 of the movable portion 701 is greater than the width W3 of the communication opening 502.

Furthermore, in this embodiment, the extension direction D1 of the buckle portion 702 is orthogonal to the extension direction D2 of the sliding groove 303 of the first sliding rail 300. That is, the extension direction D1 and the extension direction D2 are orthogonal to each other or the difference between the angle between the extension direction D1 and the extension direction D2 and 90 degrees is negligible, but the present invention is not limited thereto. In other embodiments, the extending direction of the buckle portion and the extending direction of the sliding groove of the first sliding rail form an acute angle.

Furthermore, in this embodiment, the buckle portion 702 includes a guiding inclined surface 7020, and the guiding inclined surface 7020 faces away from the slot 202 of the circuit board 200. Of course, the buckle portion 702 is not limited to include the guiding inclined surface 7020. In other embodiments, the buckling portion does not need to include the guiding inclined surface.

Of course, the accommodating seat 500 is not limited to include the communication port 502. In other embodiments, the accommodating seat does not include a communication port so that the mounting groove is directly connected to the sliding groove of the first sliding rail, and the buckle portion passes through the mounting groove and is located in the sliding groove of the first sliding rail.

The operating part 703 is connected to one side of the movable part 701 and partly located outside the installation groove 501. The mounting post 704 and the buckling part 702 are located on opposite sides of the movable part 701, and opposite ends of the elastic element 600 abut against the accommodating seat 500 and are sleeved on the mounting post 704 respectively.

Of course, the positioning member 700 is not limited to include the operating portion 703 and the mounting post 704. In other embodiments, the positioning part includes an operating part and a mounting post, and a handle provided on the movable part is used to operate the movable part, and one end of the elastic part is glued to the side of the movable part away from the buckle part.

In addition, in this embodiment, the circuit assembly 10 further includes two baffles 720. The two baffle plates 720 are disposed on the accommodating seat 500 and located in the installation groove 501, and stop at one side of the movable part 701. Of course, the circuit assembly 10 is not limited to include two baffles 720. In other embodiments, the circuit assembly does not include two baffles.

For the convenience of description, only the first sliding rail 300, the accommodating seat 500, the elastic element 600, and the positioning member 700 are used to illustrate the process of disassembling and installing the expansion card 100 in the slot 202 of the circuit board 200 below.

As shown in FIG. 4, when the expansion card 100 slides into the sliding groove 303 of the first sliding rail 300 along the insertion direction D3, the expansion card 100 pushes down the guide slope 7020 of the buckle portion 702 so that the buckle portion 702 slides from The groove 303 shrinks inwardly of the installation groove 501 of the receiving seat 500 to drive the movable part 701 to compress the elastic element 600. When the buckle portion 702 is retracted from the sliding groove 303 toward the installation groove 501 of the receiving seat 500, the expansion card 100 can continue to slide into the sliding groove 303 of the first sliding rail 300 along the insertion direction D3.

Next, please refer to FIGS. 5-6. FIG. 5 is a perspective view showing the expansion card inserted into the slot of the circuit board. 6 is a schematic cross-sectional view showing that the buckle portion is engaged with the slot of the expansion card.

As shown in FIGS. 5 and 6, when the expansion card 100 is installed in the slot 202 of the circuit board 200, the compressed elastic element 600 releases the elastic potential energy and pushes against the movable part 701, thereby driving the buckle part 702 from the installation The slot 501 extends and engages with the slot 101 of the expansion card 100.

Please refer to FIG. 2, FIG. 5 and FIG. 7. FIG. 7 is a schematic cross-sectional view showing that the buckle portion is separated from the slot of the expansion card.

When the operating portion 703 is pushed against and the movable portion 701 drives the buckle portion 702 to retract from the sliding groove 303 toward the installation groove 501 of the receiving seat 500, the buckle portion 702 is separated from the groove 101 of the expansion card 100. When the buckle portion 702 is separated from the slot 101 of the expansion card 100, the expansion card 100 can be pulled in the removal direction D4 opposite to the insertion direction D3 in FIG. 4 and removed from the slot 202 of the circuit board 200. And further slide out the sliding groove 303 of the first sliding rail 300.

The number of the accommodating seat 500, the elastic element 600, and the positioning member 700 is not limited to a single one. Please refer to FIG. 8. FIG. 8 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 300a, a second sliding rail 400a, a first receiving seat 500a, a first elastic element 600a, and a first positioning member 700a, a second accommodating seat 750a, a second elastic element 800a, and a second positioning member 850a. That is, in this embodiment, the circuit assembly 10a includes two accommodating seats, two elastic elements, and two positioning members. The first accommodating seat 500a and the second accommodating seat 750a are integrally formed with the first sliding rail 300a and the second sliding rail 400a, respectively. The first elastic element 600a and the second elastic element 800a are respectively disposed on the first accommodating seat 500a and the second accommodating seat 750a. The first positioning member 700a and the second positioning member 850a are respectively used for engaging with the two card slots 101a and 102a of the expansion card 100a.

For the detailed structure of the first accommodating seat 500a and the second accommodating seat 750a, please refer to the above description of the accommodating seat 500 based on FIGS. 1 to 3, and will not be repeated here. For the detailed structure of the first elastic element 600a and the second elastic element 800a, please refer to the above description of the elastic element 600 based on FIGS. 1 to 3, and will not be repeated here. For the detailed structure of the first positioning member 700a and the second positioning member 850a, please refer to the above description of the positioning member 700 based on FIGS. 1 to 3, and will not be repeated here.

Please refer to the above description based on FIGS. 4 to 7 for the operation process of the expansion card 100a being detached and installed in the slot 202a of the circuit board 200a through the expansion card fixing structure 250a, and will not be repeated here.

According to the expansion card installation structure disclosed in the above embodiment, because the buckle portion protrudes from the movable portion, and the movable portion is slidably disposed in the installation groove of the accommodating seat, the buckle portion is movably located on the slide of the first slide rail. Slot, which is used to snap into the slot of the expansion card. In this way, the expansion card can be stably installed in the slot of the circuit board through the expansion card fixing structure. In addition, since the opposite ends of the elastic element abut against the accommodating seat and the movable part respectively, the movable part can make the convex part of the retractable installation groove protrude to the sliding groove of the first sliding rail by the elastic force of the elastic element.

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, 100a: Expansion card 101, 101a, 102a: card slot 200, 200a: circuit board 201: Board body 202, 202a: Slot 203: top surface 204: Bottom 205: Grooving 206: The first wall 207: The second wall 250, 250a: Expansion card fixed structure 300, 300a: the first slide 301: Carrier Board 302: side cover 303: Chute 400, 400a: second slide 500: Holder 500a: The first housing 501: installation slot 502: Connecting port 600: elastic element 600a: first elastic element 700: positioning parts 700a: The first positioning piece 701: Activities Department 702: buckle part 7020: Guide slope 703: Operation Department 704: Mounting post 720: bezel 750a: second housing 800a: second elastic element 850a: The second positioning piece D1, D2: extension direction D3: Insertion direction D4: Removal direction W1, W2, W3: width

Fig. 1 is an exploded view of a circuit assembly according to a first embodiment of the present invention. FIG. 2 is a perspective view of the first sliding rail, the accommodating seat, the elastic element and the positioning member in FIG. 1. Fig. 3 is an exploded view of the first sliding rail, the accommodating seat, the elastic element and the positioning member in Fig. 2. 4 is a schematic cross-sectional view showing the guiding inclined surface of the expansion card pushing against the buckle portion. FIG. 5 is a perspective view showing that the expansion card is inserted into the slot of the circuit board. 6 is a schematic cross-sectional view showing that the buckle portion is engaged with the slot of the expansion card. FIG. 7 is a schematic cross-sectional view showing that the buckle portion is separated from the slot of the expansion card. Fig. 8 is an exploded view of a circuit assembly according to a second embodiment of the present invention.

10: Circuit components

100: Expansion card

101: card slot

200: circuit board

201: Board body

202: Slot

203: top surface

204: Bottom

205: Grooving

206: The first wall

207: The second wall

250: Expansion card fixed structure

300: The first slide

400: second slide

500: Holder

600: elastic element

700: positioning parts

Claims (7)

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 for fixing to the circuit The first slide rail and the second slide rail each include a bearing plate, a side cover plate, and a slide groove. The side cover plates are connected to the bearing plates and surround the bearing plates respectively. The sliding grooves, the sliding grooves for sliding the expansion card to install the expansion card in the slot of the circuit board; a first accommodating seat, the first accommodating seat is disposed on the first sliding The side cover of the rail has a side away from the second slide rail, and includes a first mounting groove connected to the slide groove of the first slide rail; a first elastic element disposed in The first accommodating seat is located in the first mounting groove; and a first positioning member includes a first movable part and a first buckle part, and the first movable part is movably disposed on the first accommodating seat In the first installation groove, opposite ends of the first elastic element abut against the first accommodating seat and the first movable portion respectively, the first buckle portion protrudes from the first movable portion, and the The first buckle portion is located in the sliding groove of the first slide rail and is used for engaging with a groove of the expansion card, and the first buckle portion includes a guiding inclined surface, and the guiding inclined surface faces away from the This slot of the circuit board. According to the expansion card installation structure described in item 1 of the scope of patent application, the extending direction of the first buckle portion is orthogonal to the extending direction of the sliding groove of the first sliding rail. In the expansion card installation structure described in item 1 of the scope of patent application, the first accommodating seat and the first sliding rail are integrally formed. According to the expansion card installation structure described in item 1 of the scope of patent application, the first accommodating seat further includes a communication port, and the first installation groove is connected to the sliding groove of the first sliding rail through the communication opening. In the extending direction of the sliding groove of the first sliding rail, the width of the first mounting groove is greater than the width of the first movable portion and the width of the first movable portion is greater than the width of the communicating port, the first buckle portion The sliding groove of the first sliding rail passes through the communication port. For example, the expansion card installation structure described in item 1 of the scope of the patent application further includes two baffles. The baffles are arranged on the first accommodating seat and located in the first installation slot, and are blocked by the first movable part. On the side. The expansion card installation structure described in item 1 of the scope of patent application further includes a second accommodating seat, a second elastic element, and a second positioning member. The second accommodating seat is disposed on the second slide rail. A side of the side cover plate away from the first slide rail, and includes a second installation groove, the second installation groove communicates with the slide groove of the second slide rail, and the second elastic element is disposed on the second slide rail. The accommodating seat is located in the second installation groove, the second positioning member includes a second movable part and a second buckle part, and the second movable part is movably disposed on the second installation of the second accommodating seat In the groove, opposite ends of the second elastic element abut against the second accommodating seat and the second movable portion respectively, the second buckle portion protrudes from the second movable portion, and the second buckle portion The sliding slot located on the second sliding rail is used for engaging with another slot of the expansion card. As the expansion card installation structure described in item 1 of the scope of patent application, the The first positioning member further includes a first operating portion and a first mounting post. The first operating portion is connected to one side of the first movable portion and partially located outside the first mounting groove. The first mounting post The buckle part is located at two opposite sides of the first movable part, and the first elastic element is sleeved on the first mounting post.

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