CN216565955U

CN216565955U - Electronic device with a detachable cover

Info

Publication number: CN216565955U
Application number: CN202220092465.4U
Authority: CN
Inventors: 邱亭融; 黄永庆; 杨胜智
Original assignee: MSI Computer Shenzhen Co Ltd; Micro Star International Co Ltd
Current assignee: MSI Computer Shenzhen Co Ltd; Micro Star International Co Ltd
Priority date: 2022-01-12
Filing date: 2022-01-14
Publication date: 2022-05-17
Anticipated expiration: 2032-01-14

Abstract

An electronic device comprises a casing, a motherboard, an expansion card and a support frame. The mainboard is arranged in the shell. The expansion card comprises a circuit board component and a fixing plate. The circuit board assembly is fixed on one side of the fixing plate. The circuit board assembly is electrically connected with the mainboard and fixed on the shell through the fixing plate. One side of the supporting frame supports one side of the circuit board assembly, which is far away from the fixed plate, and one side of the supporting frame, which is far away from the circuit board assembly, is fixed on the mainboard and the shell.

Description

Electronic device with a detachable cover

Technical Field

The present invention relates to electronic devices, and particularly to an electronic device including an expansion card.

Background

Generally, a display card includes a fixing plate and a circuit board assembly. The circuit board assembly is fixed on one side of the fixing plate. The circuit board assembly is inserted into the electric connector on the mainboard and is fixed on the shell through the fixing plate. As the performance requirements for display cards continue to increase, the number of electronic components on the circuit board assembly increases, 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. Some manufacturers may mount a support frame on the housing, and use the support frame to support the side of the circuit board assembly away from the fixing plate.

However, for example, the power supplies on the motherboards with different specifications are disposed at different positions, which makes the electrical connectors on the motherboards for the circuit board assemblies of the display card to be plugged into different positions. Therefore, the distance between the circuit board assembly of the display card and the shell is changed, and the circuit board assembly of the expansion card can be supported by the support frame only by changing the length of the support frame. That is, the conventional supporting frame fixed to the housing is difficult to be used for motherboards of different specifications.

SUMMERY OF THE UTILITY MODEL

The present invention provides an electronic device, wherein the support frame of the electronic device can stably support the expansion cards arranged at different positions on the main board and can be commonly used for the main boards with different specifications.

The electronic device disclosed in an embodiment of the utility model includes a housing, a motherboard, an expansion card and a support frame. The mainboard is arranged in the shell. The expansion card comprises a circuit board component and a fixing plate. The circuit board assembly is fixed on one side of the fixing plate. The circuit board assembly is electrically connected with the mainboard and fixed on the shell through the fixing plate. One side of the supporting frame supports one side of the circuit board assembly, which is far away from the fixed plate, and one side of the supporting frame, which is far away from the circuit board assembly, is fixed on the mainboard and the shell.

According to the electronic device disclosed in the above embodiment, since the side of the support frame away from the circuit board assembly is fixed to the main board and the housing, the support frame can be fixed to the housing by using the existing through hole on the main board. In addition, in motherboards of different specifications, the distances between the electrical connectors for plugging the circuit board components of the expansion card and the through holes of the motherboard are generally not very different. Therefore, the support frame can be used for stably expanding circuit board components of the card and can also be used for motherboards with different specifications.

Drawings

Fig. 1 is a partially enlarged perspective view of an electronic device according to a first embodiment of the utility model.

Fig. 2 is a partially enlarged view of an exploded view of the electronic device of fig. 1.

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

Fig. 4 is a partially enlarged perspective view of an electronic device according to a second embodiment of the utility model.

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

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

[ description of reference ]

10,10b,10 c: electronic device

100: casing (CN)

101: base plate

102: first side plate

103: second side plate

104: third side plate

200: main machine board

201: through hole

250: electrical connector

300: expansion card

310: circuit board assembly

320: fixing plate

330: fan frame

340: fan with cooling device

341: radiating fin group

350: fixing frame

400: supporting frame

410: first support frame

411: first fixed part

4110: perforation

412: first extension part

4120: guide groove

420: second support frame

421: second fixed part

422: second extension part

423: fixing hole

430: hand-turning screw

440: guide member

500: stud bolt

501: first head

502: first body part

503: screw hole

600: screw with a thread

601: second head

602: the second body part

G: direction of gravity

D1, D2, D3, D4: diameter of

S: gap

E1, E2, E3: direction of extension

330 a: fan frame

421 a: second fixed part

422 a: second extension part

300 b: expansion card

310 b: circuit board assembly

421 b: second fixed part

422 b: second extension part

750 b: soft cushion

E4b, E5 b: direction of extension

100 c: casing (CN)

102 c: first side plate

300 c: expansion card

310 c: circuit board assembly

320 c: fixing plate

421 c: second fixed part

422 c: second extension part

750 c: soft cushion

800 c: bracket

E4c, E5c, E6 c: direction of extension

Detailed Description

The detailed features and advantages of the embodiments of the present invention are described in detail below in the detailed description, which is sufficient for a person of ordinary skill in the art to understand the technical contents of the embodiments of the present invention and to implement the embodiments of the present invention, and the related objects and advantages can be easily understood by the person of ordinary skill in the art according to the disclosure, the protection scope, and the attached drawings. The following examples further illustrate aspects of the present invention in detail, but are not intended to limit the scope of the utility model in any way.

Referring to fig. 1 to 3, fig. 1 is a partially enlarged view of a perspective view of an electronic device according to a first embodiment of the utility model. Fig. 2 is a partially enlarged view of an exploded view of the electronic device of fig. 1. Fig. 3 is a partially enlarged view of a cross-sectional view of the electronic device in fig. 1.

In the present embodiment, the electronic device 10 is, for example, a computer host and includes a housing 100, a motherboard 200, an expansion card 300, and a supporting frame 400. The main board 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 to one side of the fixing plate 320. The circuit board assembly 310 is electrically connected to the main board 200 and fixed to the housing 100 through the fixing plate 320. One side of the supporting frame 400 supports a side of the circuit board assembly 310 away from the fixing plate 320, and a side of the supporting frame 400 away from the circuit board assembly 310 is fixed to the main board 200 and the housing 100. In the present 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 the embodiment, the housing 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, for clarity, the top plate and the fourth side plate 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 connect the bottom plate 101 and the top plate such that the bottom plate 101 and the top plate are opposite to each other. The first side plate 102 and the second side plate 103 face each other. The third side plate 104 and the fourth side plate are opposite to each other and are interposed between the first side plate 102 and the second side plate 103. The top plate is located above the bottom plate 101 in the direction of gravity G. In the embodiment, the fixing plate 320 of the expansion card 300 is fixed to the first side plate 102, and the motherboard 200 is disposed on the third side plate 104.

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

In the present embodiment, the electronic device 10 further includes two studs 500 and two screws 600, and the main board 200 has two through holes 201. The first fixing portion 411 is fixed to the main board 200 and the housing 100 by two studs 500 and two screws 600. Since two studs 500 and two screws 600 are respectively matched with the through holes 201 in a similar manner, only the way in which one stud 500 and one screw 600 are matched 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 greater 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 one end of the first head 501 far 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 601 is larger than the diameter D4 of the second body 602. The second body portion 602 passes through the through hole 4110 of the first fixing portion 411 and is screwed into the screw hole 503 of the first head portion 501. The first fixing portion 411 is interposed between the second head portion 601 and the first head portion 501. Opposite ends of the first head 501 respectively abut against the first fixing portion 411 and the main board 200, so that a gap S is formed between the first fixing portion 411 and the main board 200. The space S is used for accommodating electronic components on the motherboard 200, for example, to improve the space utilization of the motherboard 200. The first body 502 passes through the through hole 201 of the main board 200 and is screwed to the bottom plate 101 of the housing 100.

The first extending portion 412 stands on a side of the first fixing portion 411 away from the main board 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 the present embodiment, the extending direction E1 of the first fixing portion 411 and the extending direction E2 of the first extending portion 412 are orthogonal to each other, for example.

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

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 the present 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 motherboard 200 by a screw locking method. Further, in the present embodiment, the expansion card 300 further includes a fan case 330, a plurality of fans 340, and a fixing frame 350. These fans 340 are fixed to the circuit board assembly 310 by the fan case 330. The fixing frame 350 is fixed to the circuit board assembly 310 and is used to prevent the circuit board assembly 310 from deforming under stress when the fan 340 or the heat dissipating fin set 341 of the expansion card 300 is locked. In addition, in other embodiments, a heat sink pad may be disposed at the bottom of the fixing frame (i.e., at a side of the fixing frame close to the motherboard) to increase the lifetime and reliability of the circuit board assembly. In the present 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 by a screw locking manner.

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

In other embodiments, the supporting frame may not include the hand screw 430 and the guiding member 440, in such embodiments, the first extending portion does not have to have two guiding grooves 4120, the second extending portion does not have to have two fixing holes 423, and the second extending portion may also be movably disposed on the first extending portion through the gear and the rack.

In other embodiments, the second extending portion may also be fixed to the first extending portion. Alternatively, the second extension part and the first extension part can be integrally formed.

The present invention is not limited to the manner of supporting the expansion card by the second fixing portion. Referring to fig. 4, fig. 4 is a partially enlarged view of a perspective view of an electronic device according to a second embodiment of the utility model. The difference between the present embodiment and the first embodiment is only that the second fixing portion is fixed at the position of the expansion card, and the description of fig. 1 to fig. 3 is referred to for the similar parts, so the description is omitted. In the present embodiment, the second fixing portion 421a is fixed to the fan case 330a by a screw-locking manner at a side away from the second extending portion 422 a.

Referring to fig. 5, fig. 5 is a partially enlarged side view of an electronic device according to a third embodiment of the utility model. The difference between the present embodiment and the first embodiment is only the way of fixing the second fixing portion to the expansion card, and other similar parts are described with reference to fig. 1 to 3, and therefore are not repeated herein. In the 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 a side of the second fixing portion 421b away from the second extending portion 422b abuts against a side of the circuit board assembly 310b of the expansion card 300b close to the second extending portion 422 b. In the present embodiment, the electronic device 10b further includes a cushion 750 b. The cushion 750b is interposed between the circuit board assembly 310b and the second fixing portion 421b and is made of, for example, rubber.

Referring to fig. 6, fig. 6 is a partially enlarged side view of an electronic device according to a fourth embodiment of the utility model. The difference between the present embodiment and the third embodiment is only that the electronic device 10c of the present embodiment further includes a bracket 800c, and the descriptions of the other similar parts refer to the description of fig. 5 and the descriptions of fig. 1 to fig. 3, so the descriptions thereof are omitted. In the embodiment, the bracket 800c and the fixing plate 320c are fixed on the same side of the casing 100c, that is, the bracket 800c and the fixing plate 320c are fixed on the first side plate 102c of the casing 100 c. The extending direction E6c of the bracket 800c is parallel to the extending direction E4c of the second fixing portion 421c and the extending direction E5c of the circuit board assembly 310c of the expansion card 300c, and the second fixing portion 421c abuts against the circuit board assembly 310c of the expansion card 300c on the side close to the second extending portion 422c through the bracket 800 c. In the present embodiment, the electronic device 10c further includes a cushion 750 c. The cushion 750c is interposed between the bracket 800c and the second fixing portion 421c and is made of, for example, rubber.

Claims

1. An electronic device, comprising:

a housing;

a main board disposed in the housing;

an expansion card, including a circuit board assembly and a fixed plate, the circuit board assembly is fixed on one side of the fixed plate, the circuit board assembly is electrically connected to the motherboard and fixed on the casing through the fixed plate; and

one side of the supporting frame supports one side of the circuit board assembly, which is far away from the fixed plate, and one side of the supporting frame, which is far away from the circuit board assembly, is fixed on the mainboard and the shell.

2. The electronic device of claim 1, further comprising a stud and a screw, the main board is provided with a through hole, the stud comprises a first head part and a first body part which are connected with each other, the diameter of the first head part is larger than that of the first body part, the first head part is provided with a screw hole which is positioned at one end of the first head part far away from the first body part, the screw comprises a second head part and a second body part which are connected with each other, the diameter of the second head part is larger than that of the second body part, the second body part penetrates through the supporting frame and is screwed in the screw hole of the first head part, part of the supporting frame is clamped between the second head part and the first head part, the opposite ends of the first head part respectively abut against the support frame and the mainboard to form a gap between the support frame and the mainboard, and the first body part penetrates through the through hole of the mainboard and is screwed on the shell.

3. The electronic device of claim 1, wherein the support frame comprises a first support frame and a second support frame, the first support frame comprises a first fixing part and a first extending part, the first fixing part is fixed on the mainboard and the shell, the first extending portion is located on a side of the first fixing portion away from the motherboard, an extending direction of the first fixing portion is not parallel to an extending direction of the first extending portion, the second support frame comprises a second fixing part and a second extending part, the second extending part is movably arranged on one side of the first extending part far away from the first fixing part and extends towards the circuit board component of the expansion card, the second fixing part is connected to one side of the second extending part far away from the first extending part, and one side of the second fixing part far away from the second extending part supports the circuit board assembly of the expansion card.

4. The electronic device of claim 3, wherein the supporting frame further comprises a hand screw and a guiding element, the first extending portion has two guiding slots separated from each other, the second extending portion has two fixing holes separated from each other, the hand screw is detachably fixed to one of the fixing holes and slidably disposed in one of the guiding slots, and the guiding element is detachably fixed to the other fixing hole and slidably disposed in the other guiding slot.

5. The electronic device of claim 3, 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 by means of screw locking.

6. The electronic device of claim 5, 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 motherboard by way of screw locking.

7. The electronic device of claim 3, wherein a side of the second fixing portion away from the second extending portion abuts against the circuit board assembly of the expansion card.

8. The electronic device of claim 7, 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 a side of the circuit board assembly of the expansion card close to the second extending portion.

9. The electronic device of claim 8, further comprising a bracket, wherein the bracket and the fixing plate are fixed to the same side of the housing, the extending direction of the bracket is parallel to the extending direction of the second fixing portion and the extending direction of the circuit board assembly of the expansion card, and the second fixing portion abuts against a side of the circuit board assembly of the expansion card near the second extending portion through the bracket.

10. The electronic device of claim 1, further comprising a screw, wherein a side of the supporting frame away from the circuit board assembly is fixed to the main board and the housing by the screw.