TWI796085B - Electronic device - Google Patents

Abstract

An electronic device including a chassis, a motherboard, an expansion card and a support. Motherboard is disposed in chassis. Expansion card includes a circuit board assembly and a fixing bracket. Circuit board assembly is fixed to a side of fixing bracket. Circuit board assembly is electrically connected to motherboard and is fixed to chassis via fixing bracket. A side of support supports a side of circuit board assembly located away from fixing bracket, and a side of support located away from circuit board assembly is fixed to motherboard and chassis.

Description

electronic device

The present invention relates to an electronic device, in particular to an electronic device including an expansion card.

Generally speaking, a graphics card will include a mounting plate and a circuit board assembly. The circuit board assembly is fixed on one side of the fixing plate. The circuit board assembly is plugged into the electrical connector on the motherboard and fixed to the casing through the fixing plate. Due to the ever-increasing demands on the performance of the graphics card, the number of electronic components on the circuit board assembly is increasing, which increases the overall weight of the circuit board assembly. Therefore, the side of the circuit board assembly away from the fixing plate has a problem of sagging because it is not supported. For this reason, some manufacturers install support brackets on the case and use the support brackets to support the side of the circuit board assembly away from the fixed plate.

However, for example, the locations of the power supplies on the motherboards of different specifications are different, which makes the electrical connectors on the motherboards for the circuit board components of the display card need to be arranged at different locations. In this way, the distance between the circuit board assembly of the display card and the casing will change, and the length of the support frame needs to be changed to use the support frame to support the circuit board assembly of the expansion card. That is to say, it is difficult for the traditional supporting frame fixed on the case to be shared with motherboards of different specifications.

The present invention is to provide an electronic device. The supporting frame of the electronic device can stably support the expansion cards arranged at different positions on the main board, and can be shared with different specifications of the main board.

An electronic device disclosed in an embodiment of the present invention includes a case, a main board, an expansion card and a supporting frame. The motherboard is arranged in the casing. The expansion card includes a circuit board assembly and a fixing board. The circuit board assembly is fixed on one side of the fixing plate. The circuit board assembly is electrically connected to the main board and fixed to the casing through the fixing plate. One side of the support frame supports the side of the circuit board assembly away from the fixing plate, and the side of the support frame away from the circuit board assembly is fixed to the main board and the casing.

According to the electronic device disclosed in the above embodiments, since the side of the support frame away from the circuit board assembly is fixed to the main board and the case, the support frame can be fixed to the case by using the existing through holes on the main board. Moreover, in motherboards of different specifications, the distance between the electrical connector for plugging the circuit board assembly of the expansion card and the through hole of the motherboard generally has little difference. In this way, the supporting frame according to the present invention can not only stably expand the circuit board assembly of the card, but also be commonly used for motherboards of different specifications.

10, 10b, 10c: electronic devices

100: Chassis

101: Bottom plate

102: The first side panel

103: Second side panel

104: The third side panel

200: Motherboard

201: through hole

250: electrical connector

300: expansion card

310: circuit board assembly

320: fixed plate

330: fan bracket

340: fan

341: cooling fin group

350: fixed frame

400: support frame

410: the first support frame

411: The first fixed part

4110: perforation

412: The first extension

4120: guide groove

420: Second support frame

421: The second fixed part

422: Second extension

423: Fixing hole

430: Thumb screw

440: guide

500: stud

501: first head

502: First Body

503: screw hole

600: screw

601: second head

602: Second body

G: Gravity direction

D1, D2, D3, D4: Diameter

S: Gap

E1, E2, E3: extension direction

330a: Fan bracket

421a: the second fixed part

422a: second extension

300b: expansion card

310b: Circuit board assembly

421b: second fixing part

422b: second extension

750b: Upholstery

E4b, E5b: extension direction

100c: Chassis

102c: first side panel

300c: expansion card

310c: Circuit board assembly

320c: Fixed plate

421c: the second fixed part

422c: second extension

750c: Upholstered

800c: bracket

E4c, E5c, E6c: extension direction

FIG. 1 is a partial enlarged view of a perspective view of an electronic device according to a first embodiment of the present invention.

FIG. 2 is a partially enlarged view of an exploded view of the electronic device in FIG. 1 .

FIG. 3 is a partially enlarged view of a schematic cross-sectional view of the electronic device in FIG. 1 .

FIG. 4 is a partial enlarged view of a perspective view of an electronic device according to a second embodiment of the present invention.

5 is a partially enlarged view of a side view of an electronic device according to a third embodiment of the present invention.

FIG. 6 is a partial enlarged view of a side view of an electronic device according to a fourth embodiment of the present invention.

The detailed features and advantages of the embodiments of the present invention are described in detail below in the implementation modes, the content is enough for anyone with ordinary knowledge in the field to understand the technical content of the embodiments of the present invention and implement them accordingly, and according to the disclosure of this specification Anyone with ordinary knowledge in the art can easily understand the related objectives and advantages of the present invention. The following examples are to further describe the concept of the present invention in detail, but not to limit the scope of the present invention in any way.

Please refer to FIG. 1 to FIG. 3 . FIG. 1 is a partial enlarged view of a perspective view of an electronic device according to a first embodiment of the present invention. FIG. 2 is a partially enlarged view of an exploded view of the electronic device in FIG. 1 . FIG. 3 is a partially enlarged view of a schematic cross-sectional view of the electronic device in FIG. 1 .

In this embodiment, the electronic device 10 is, for example, a computer host and includes a casing 100 , a motherboard 200 , an expansion card 300 and a support frame 400 . The motherboard 200 is disposed in the casing 100 . The expansion card 300 is, for example, a display card and includes a circuit board assembly 310 and a fixing plate 320 . The circuit board assembly 310 is fixed on one side of the fixing plate 320 . The circuit board assembly 310 is electrically connected to the motherboard 200 and The fixed plate 320 is fixed on the casing 100 . One side of the support frame 400 supports the side of the circuit board assembly 310 away from the fixing plate 320 , and the side of the support frame 400 away from the circuit board assembly 310 is fixed to the main board 200 and the casing 100 . In this embodiment, the electronic device 10 further includes an electrical connector 250 . The electrical connector 250 is fixed and electrically connected to the motherboard 200 . The circuit board assembly 310 is plugged into the electrical connector 250 and electrically connected to the motherboard 200 through the electrical connector 250 .

In this embodiment, the casing 100 includes a bottom plate 101 , a top plate, a first side plate 102 , a second side plate 103 , a third side plate 104 and a fourth side plate. It should be noted that, in order to clearly present the technical points of the present invention, the top panel and the fourth side panel are omitted in the drawings. The first side plate 102 , the second side plate 103 , the third side plate 104 and the fourth side plate are connected to the bottom plate 101 and the top plate so that the bottom plate 101 and the top plate face each other. The first side panel 102 and the second side panel 103 are opposite to each other. The third side panel 104 and the fourth side panel are opposite to each other and interposed between the first side panel 102 and the second side panel 103 . The top plate is located above the bottom plate 101 along the gravity direction G. In this embodiment, the fixing plate 320 of the expansion card 300 is fixed on the first side plate 102 , and the main board 200 is disposed on the third side plate 104 .

In this embodiment, the support frame 400 includes a first support frame 410 and a second support frame 420 . The first supporting frame 410 includes a first fixing portion 411 and a first extending portion 412 .

In this embodiment, the electronic device 10 further includes two studs 500 and two screws 600 , and the motherboard 200 has two through holes 201 . The first fixing part 411 is fixed to the motherboard 200 and the casing 100 through the two studs 500 and the two screws 600 . Depend on Since the two studs 500 and the two screws 600 respectively cooperate with the two through holes 201 in a similar manner, only the manner in which one stud 500 and one screw 600 cooperate with one through hole 201 will be described in detail below. Specifically, the stud 500 includes a first head 501 and a first body 502 connected to each other. The diameter D1 of the first head portion 501 is larger than the diameter D2 of the first body portion 502 . The first head 501 has a screw hole 503 . The screw hole 503 is located at an end of the first head 501 away from the first body 502 . The screw 600 includes a second head 601 and a second body 602 connected to each other. The diameter D3 of the second head portion 601 is greater than the diameter D4 of the second body portion 602 . The second body portion 602 passes through the through hole 4110 of the first fixing portion 411 and is screwed to the screw hole 503 of the first head portion 501 . The first fixing portion 411 is sandwiched between the second head 601 and the first head 501 . Two opposite ends of the first head portion 501 abut against the first fixing portion 411 and the motherboard 200 respectively so that a gap S is formed between the first fixing portion 411 and the motherboard 200 . The gap S is, for example, used to accommodate electronic components on the motherboard 200 to improve space utilization of the motherboard 200 . The first body part 502 passes through the through hole 201 of the motherboard 200 and is screwed to the bottom plate 101 of the case 100 .

The first extending portion 412 stands on a side of the first fixing portion 411 away from the motherboard 200 . The extending direction E1 of the first fixing portion 411 and the extending direction E2 of the first extending portion 412 are not parallel to each other. In this embodiment, the extending direction E1 of the first fixing portion 411 and the extending direction E2 of the first extending portion 412 are, for example, orthogonal to each other.

The second supporting frame 420 includes a second fixing portion 421 and a second extending portion 422 . The second extension portion 422 is movably disposed on a side of the first extension portion 412 away from the first fixing portion 411 and extends toward the circuit board assembly 310 of the expansion card 300 . In this embodiment, the support frame 400 further includes a thumb screw 430 and a guide 440 . The first extension portion 412 has two guiding grooves 4120 separated from each other. The extending direction E3 of the two guiding grooves 4120 is, for example, perpendicular to the extending direction E2 of the first extending portion 412 . The second extension portion 422 has two fixing holes 423 separated from each other. The thumb screw 430 is detachably fixed in one of the fixing holes 423 and slidably disposed in one of the guiding slots 4120 . The guiding member 440 is detachably fixed to the other fixing hole 423 and is slidably disposed in the other guiding groove 4120 . In this embodiment, the guide member 440 is, for example, a thumb screw, but it is not limited thereto. In other embodiments, the guide member can also be a guide post.

The second fixing portion 421 is connected to a side of the second extending portion 422 away from the first extending portion 412 , and a side of the second fixing portion 421 away from the second extending portion 422 supports the circuit board assembly 310 of the expansion card 300 . In this embodiment, the side of the second fixing portion 421 away from the second extending portion 422 is fixed to the side of the circuit board assembly 310 of the expansion card 300 away from the main board 200 through a screw lock. Furthermore, in this embodiment, the expansion card 300 further includes a fan frame 330 , a plurality of fans 340 and a fixing frame 350 . The fans 340 are fixed to the circuit board assembly 310 through the fan frame 330 . The fixing frame 350 is fixed on the circuit board assembly 310 and is used to prevent the circuit board assembly 310 from being deformed by force when the fan 340 or the cooling fin set 341 of the expansion card 300 is locked. In addition, in other embodiments, a heat dissipation pad can also be provided on the bottom of the fixing frame (ie, the side of the fixing frame close to the motherboard), so as to increase the lifespan and reliability of the circuit board components. In this embodiment, the side of the second fixing portion 421 away from the second extending portion 422 is fixed to the side of the fixing frame 350 away from the main board 200 through a screw lock.

As shown in FIG. 2 , in this embodiment, the fixing plate 320 and the supporting frame 400 are respectively fixed on different sides of the casing 100 .

In other embodiments, the electronic device may only include one stud and one screw. Alternatively, in still other embodiments, the electronic device may not need to include the stud 500 , and the side of the support frame away from the circuit board assembly is fixed to the main board and the casing through screws. In such an embodiment, the first fixing portion of the first supporting frame may also be in contact with the main board.

In other embodiments, the support frame does not need to include the thumb screw 430 and the guide piece 440. In such an embodiment, the first extension part does not need to have two guide grooves 4120, and the second extension part does not need to have two fixing holes. 423, and the second extension part can also be movably arranged on the first extension part through the gear and the rack.

In other embodiments, the second extension part can also be fixed to the first extension part. Alternatively, the second extension part can also be integrally formed with the first extension part.

The present invention is not limited to the manner in which the second fixing portion supports the expansion card. Please refer to FIG. 4 . FIG. 4 is a partial enlarged view of a perspective view of an electronic device according to a second embodiment of the present invention. The difference between this embodiment and the first embodiment is only that the second fixing part is fixed on the expansion card. For other similar parts, please refer to the descriptions of FIG. 1 to FIG. In this embodiment, a side of the second fixing portion 421a away from the second extending portion 422a is fixed to the fan frame 330a through screw locks.

Please refer to FIG. 5 . FIG. 5 is a partially enlarged view of a side view of an electronic device according to a third embodiment of the present invention. The difference between this embodiment and the first embodiment lies only in the way the second fixing part is fixed to the expansion card. For other similar parts, please refer to The description of FIGS. 1 to 3 is omitted. In this embodiment, the extending direction E4b of the second fixing portion 421b is parallel to the extending direction E5b of the circuit board assembly 310b of the expansion card 300b, and the side of the second fixing portion 421b away from the second extending portion 422b is against the expansion The side of the circuit board assembly 310b of the card 300b is close to the second extension 422b. In this embodiment, the electronic device 10b further includes a cushion 750b. The cushion 750b is sandwiched between the circuit board assembly 310b and the second fixing portion 421b and is made of rubber, for example.

Please refer to FIG. 6 . FIG. 6 is a partially enlarged view of a side view of an electronic device according to a fourth embodiment of the present invention. The difference between this embodiment and the third embodiment is only that the electronic device 10c of this embodiment further includes a bracket 800c, and for other similar parts, please refer to the description for FIG. 5 and the description for FIGS. 1 to 3 , so no more details. In this embodiment, the bracket 800c and the fixing plate 320c are fixed on the same side of the case 100c, that is, the bracket 800c and the fixing plate 320c are both fixed on the first side plate 102c of the case 100c. The extension direction E6c of the bracket 800c is parallel to the extension direction E4c of the second fixing portion 421c and the extension direction E5c of the circuit board assembly 310c of the expansion card 300c, and the second fixing portion 421c abuts against the circuit of the expansion card 300c through the bracket 800c One side of the plate assembly 310c is close to the second extension portion 422c. In this embodiment, the electronic device 10c further includes a cushion 750c. The cushion 750c is interposed between the bracket 800c and the second fixing portion 421c and is made of rubber, for example.

According to the electronic device disclosed in the above embodiments, since the side of the support frame away from the circuit board assembly is fixed to the main board and the case, the support frame can be fixed to the case by using the existing through holes on the main board. And, on motherboards of different specifications In general, the distance between the electrical connector for plugging the circuit board assembly of the expansion card and the through hole of the motherboard is generally not much different. In this way, the supporting frame according to the present invention can not only stably expand the circuit board assembly of the card, but also be commonly used for motherboards of different specifications.

Although the present invention is disclosed above with the foregoing embodiments, it is not intended to limit the present invention. Any person familiar with similar skills may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of patent protection for inventions shall be defined in the scope of patent application attached to this specification.

10: Electronic device

102: The first side panel

104: The third side panel

200: Motherboard

250: electrical connector

320: fixed plate

330: fan bracket

340: fan

341: cooling fin group

350: fixed frame

400: support frame

410: the first support frame

411: The first fixed part

4110: perforation

412: The first extension

420: Second support frame

421: The second fixed part

422: Second extension

423: Fixing hole

430: Thumb screw

440: guide

500: stud

600: screw

E1, E2, E3: extension direction

Claims (9)

An electronic device, comprising: a case; a main board disposed in the case; an expansion card comprising a circuit board assembly and a fixing plate, the circuit board assembly is fixed on one side of the fixing plate, the circuit The board assembly is electrically connected to the main board and fixed to the casing through the fixing plate; and a support frame, one side of the support frame supports the side of the circuit board assembly away from the fixing plate, and the support frame is far away from the One side of the circuit board assembly is fixed on the main board and the casing; wherein the electronic device further includes a stud and a screw, the main board has a through hole, and the stud includes a first head connected to each other and a The first body, the diameter of the first head is larger than the diameter of the first body, the first head has a screw hole, the screw hole is located at the end of the first head away from the first body, the The screw includes a second head and a second body connected to each other, the diameter of the second head is larger than the diameter of the second body, the second body passes through the support frame and is screwed to the first body. The screw hole of the head, part of the support frame is sandwiched between the second head and the first head, and the opposite ends of the first head are respectively against the support frame and the main board. A gap is formed between the supporting frame and the main board, and the first body passes through the through hole of the main board and is screwed to the casing. The electronic device as described in claim 1, wherein the support frame includes a first support frame and a second support frame, and the first support frame includes a first solid A fixed part and a first extension part, the first fixed part is fixed on the motherboard and the case, the first extension part stands on the side of the first fixed part away from the motherboard, the first fixed part The extension direction and the extension direction of the first extension part are not parallel to each other, the second support frame includes a second fixing part and a second extension part, and the second extension part is movably arranged on the first extension part away from the One side of the first fixing portion extends toward the circuit board assembly of the expansion card, the second fixing portion is connected to a side of the second extending portion away from the first extending portion, and the second fixing portion is far away from the first extending portion One side of the two extensions supports the circuit board assembly of the expansion card. The electronic device according to claim 2, wherein the support frame further includes a thumb screw and a guide member, the first extension part has two guide grooves separated from each other, and the second extension part has two fixing parts separated from each other The thumb screw is detachably fixed in one of the fixing holes and slidably arranged in one of the guide grooves, and the guide is detachably fixed in the other of the fixing holes and slidably arranged in the other One of the guide slots. The electronic device according to claim 2, wherein a side of the second fixing portion away from the second extending portion is fixed to the circuit board assembly of the expansion card through a screw lock. The electronic device according to claim 4, wherein a side of the second fixing portion away from the second extending portion is fixed to a side of the circuit board assembly of the expansion card away from the main board through screw locks. The electronic device according to claim 2, wherein a side of the second fixing portion away from the second extending portion abuts against the circuit board assembly of the expansion card. The electronic device as claimed in item 6, wherein the extending direction of the second fixing portion is parallel to the extending direction of the circuit board assembly of the expansion card, and the second fixing portion abuts against the circuit board of the expansion card The assembly is close to one side of the second extension. The electronic device as described in claim 7 further includes a bracket, the bracket and the fixing plate are fixed on the same side of the casing, the extending direction of the bracket is parallel to the extending direction of the second fixing portion and the The extending direction of the circuit board assembly of the expansion card, and the second fixing part abuts against the side of the circuit board assembly of the expansion card close to the second extending part through the bracket. The electronic device as claimed in claim 1, wherein the fixing plate and the supporting frame are respectively fixed on different sides of the casing.

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