TWI514954B - Baffle device and mezzanine card assembly - Google Patents

Description

Flow blocking device and mezzanine card combination

The present invention relates to a flow blocking device and a sandwich card combination, and more particularly to a flow blocking device and a mezzanine card combination for use in a computer system.

In recent years, in order to maximize economic benefits, the market has been pursuing highly efficient servers. In order to maximize the processing power of the server in a limited space within the server, the density of electronic components inside the server is continuously increased, and the heat dissipation burden is continuously increased.

As we all know, in the blade server, the space between each two "blades" is very narrow, and the mezzanine car (for example, the expansion graphics card) on the motherboard of each "blade" can usually only be parallel to Motherboard settings. In order to reasonably and effectively utilize the area of the mezzanine card and maximize its performance, electronic components such as a memory chip are usually disposed on both sides of the mezzanine card. This method greatly increases the heat generation of the mezzanine card and increases the difficulty of dissipating the mezzanine card. At the same time, the cooling airflow in the blade servo is usually preheated by the CPU heat sink before passing through the mezzanine card, so that the airflow temperature for the heat dissipation of the mezzanine card is high. Therefore, if there is no flow guiding structure in the blade servo to guide the heat dissipation airflow to the main heating position of the mezzanine card, the mezzanine card will not be able to effectively dissipate heat.

The present invention provides a flow blocking device that is applied to a mezzanine card. Mezzanine The card contains a circuit board. The flow blocking device comprises a snap member, a spoiler and an elastic member. The snap member is used to engage the circuit board. The spoiler is pivotally connected to the engaging member, thereby rotating relative to the engaging member between the folded position and the deployed position. The elastic member is compressed between the engaging member and the spoiler for rotating the spoiler relative to the engaging member toward the deployed position.

In an embodiment of the invention, the circuit board has a first edge and a second edge that are connected and not parallel. The engaging member includes a base, a first engaging portion and a second engaging portion. The base is used to abut the bottom surface of the circuit board. The first engaging portion is connected to the base for engaging the top surface of the circuit board on the first edge. The second engaging portion is connected to the base for engaging the top surface of the circuit board on the second edge.

In an embodiment of the invention, the circuit board further has a through hole. The engaging member further includes a third engaging portion. The third engaging portion is connected to the base for passing through the circuit board through the through hole and engaging the top surface of the circuit board.

In an embodiment of the invention, the susceptor has a limiting portion. When the spoiler rotates relative to the engaging member against the limiting portion, the spoiler is located at the deployed position.

The present invention further provides a mezzanine card assembly for use in a computer system. The computer system includes a housing. The housing includes a bottom plate. The mezzanine card combination includes a first mezzanine card and a flow blocking device. The first mezzanine card is detachably disposed in the housing. The first mezzanine card contains a circuit board. The boards are separated above the bottom plate. There is a channel between the board and the backplane. The flow blocking device comprises a snap member, a spoiler and an elastic member. The snap member is used to engage the circuit board. The spoiler is pivotally connected to the engaging member, thereby rotating relative to the engaging member between the folded position and the deployed position. The elastic member is compressed between the engaging member and the spoiler for making the spoiler phase The engaging member is rotated toward the deployed position. The spoiler that is rotated to the deployed position blocks the passage.

In an embodiment of the invention, the first interlayer card is detachably disposed in the housing in a dismounting direction. The spoiler rotates relative to the engaging member along an axial direction. The disassembly direction is perpendicular to the axial direction.

In an embodiment of the invention, the mezzanine card combination further includes a second mezzanine card. The second interlayer card is used to pass through the flow blocking device in the disassembly direction to enter the passage, and is further detachably disposed in the housing. The spoiler is located between the circuit board and the second mezzanine card and abuts the second mezzanine card.

Therefore, the flow blocking device and the sandwich card combination of the present invention have the advantage that the flow blocking device can effectively guide the heat dissipation airflow in the casing of the computer system to the main heat generating position of the mezzanine card, so that the heat dissipation efficiency of the sandwich card is improved. Moreover, when only one mezzanine card is provided in the computer system, the elastic member of the flow blocking device can automatically rotate the spoiler to the deployed position and block the passage between the sandwich card and the housing. When two mezzanine cards are installed in the computer system, the baffle of the choke device can also be simply stored between the two mezzanine cards. In addition, the choke device is assembled to the circuit board of the mezzanine card in a snap-fit manner, so that the circuit configuration on the circuit board is not affected, and the production line assembly is more favorable.

The embodiments of the present invention are disclosed in the following drawings, and for the purpose of clarity However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, some conventional knots are used to simplify the schema. The components and elements are shown in the drawings in a simplified schematic manner.

Please refer to Figure 1A and Figure 1B. 1A is a partial side elevational view of a mezzanine card assembly assembled to a computer system (not shown) in accordance with an embodiment of the present invention, wherein the housing 10 is shown in cross section and the second mezzanine card 16 has not been It is disposed in the housing 10. FIG. 1B is another partial side view showing FIG. 1 in which the second mezzanine card 16 has been disposed in the housing 10.

As shown in FIGS. 1A and 1B, in the present embodiment, the mezzanine card combination includes the first mezzanine card 12, the flow blocking device 14, and the second mezzanine card 16. The first mezzanine card 12 of the mezzanine card combination includes a circuit board 120 that is detachably disposed in the housing 10 such that the circuit board 120 of the first mezzanine card 12 is spaced apart above the bottom plate 100 of the housing 10. Therefore, the circuit board 120 of the first mezzanine card 12 has a channel 11 with the bottom plate 100 of the housing 10. In the present embodiment, the circuit board 120 of the first mezzanine card 12 and the bottom board 100 of the housing 10 are parallel to each other, but the invention is not limited thereto. In another embodiment, the circuit board 120 of the first mezzanine card 12 and the bottom board 100 of the housing 10 may not be parallel to each other.

Referring to FIG. 2, a perspective view of the first mezzanine card 12 and the flow blocking device 14 in FIG. 1A is illustrated, wherein the spoiler 142 is rotated relative to the engaging member 140 to the deployed position.

As shown in FIG. 2, in the present embodiment, the flow blocking device 14 of the sandwich card combination includes the engaging member 140, the spoiler 142, and the elastic member 144. The engaging member 140 of the flow blocking device 14 is used to engage the circuit board 120 of the first mezzanine card 12. The spoiler 142 of the flow blocking device 14 is pivotally connected to the engaging member 140, thereby rotating relative to the engaging member 140 at the folding position (as shown in FIG. 1B) and the unfolding position. Between (as shown in Figure 1A). The elastic member 144 of the flow blocking device 14 is compressed between the engaging member 140 and the spoiler 142 for rotating the spoiler 142 relative to the engaging member 140 toward the deployed position. The spoiler 142 that is rotated to the deployed position blocks the passage 11 between the circuit board 120 of the first mezzanine card 12 and the bottom plate 100 of the housing 10. Thereby, the flow blocking device 14 of the mezzanine card combination can effectively guide the heat dissipation airflow in the casing 10 to the main heat generating position of the first mezzanine card 12, so that the desorption efficiency of the first mezzanine card 12 is improved.

The second mezzanine card 16 of the mezzanine card combination can pass through the flow blocking device 14 along the disassembly direction A to enter the channel 11 and be detachably disposed in the housing 10. When assembled, the second mezzanine card 16 of the mezzanine card combination will first push the spoiler 142 of the flow blocking device 14 such that the spoiler 142 is rotated relative to the engaging member 140 from the deployed position toward the collapsed position. After the second mezzanine card 16 of the mezzanine card combination is assembled into the housing 10, the second mezzanine card 16 fills the space of the channel 11 (i.e., the circuit board 120 of the first mezzanine card 12 and the bottom plate 100 of the housing 10). between). Moreover, the baffle 142 of the flow blocking device 14 is located between the circuit board 120 of the first mezzanine card 12 and the second mezzanine card 16 and abuts against the second mezzanine card 16. At this time, the position of the baffle plate 142 of the flow blocking device 14 with respect to the engaging member 140 can be regarded as the above-mentioned folding position. The second mezzanine card 16 also has a circuit board 160, and the circuit board 160 of the second interlayer is parallel to the circuit board 120 of the first mezzanine card 12 and the bottom board 100 of the housing 10. However, the invention is not limited thereto.

It should be noted that the angle of the spoiler 142 relative to the circuit board 120 of the first mezzanine card 12 when in the folded position is not limited by FIG. 1B, and may be between the first mezzanine card 12 and the second mezzanine card 16. The distance changes. For example, if the distance between the first mezzanine card 12 and the second mezzanine card 16 is reduced If there is little, the angle between the spoiler 142 and the circuit board 120 of the first mezzanine card 12 will also become smaller when the blocking plate 142 is in the folded position. Conversely, if the distance between the first mezzanine card 12 and the second mezzanine card 16 is increased, the angle between the obstruction plate 142 and the circuit board 120 of the first mezzanine card 12 is also increased when the blocking plate 142 is in the folded position.

Further, in the present embodiment, the spoiler 142 rotated to the unfolded position is at an angle θ with respect to the board clamp 120 of the first mezzanine card 12, and the included angle θ is 75 to 80 degrees.

Please refer to Figure 3 and Figure 4. Fig. 3 is a perspective view showing the flow blocking device 14 in Fig. 2. Fig. 4 is a partially enlarged view showing the flow blocking device 14 in Fig. 3.

As shown in FIGS. 1A and 3, in the present embodiment, the spoiler 142 of the flow blocking device 14 is rotated relative to the engaging member 140 in an axial direction B. The above-described disassembly direction A is parallel to the circuit board 120 of the first mezzanine card 12 and the bottom plate 100 of the casing 10, and is perpendicular to the axial direction B.

Returning to Fig. 2, in the present embodiment, the circuit board 120 of the first mezzanine card 12 has a first edge E1 and a second edge E2 that are connected and not parallel. The engaging member 140 of the flow blocking device 14 includes a base 140a, a first engaging portion 140b, a second engaging portion 140c, and a third engaging portion 140d. The base 140a of the engaging member 140 is for abutting against the bottom surface of the circuit board 120 of the first mezzanine card 12. The first engaging portion 140b of the engaging member 140 is coupled to the base 140a for engaging the top surface of the circuit board 120 on the first edge E1. The second engaging portion 140c of the engaging member 140 is coupled to the base 140a for engaging the top surface of the circuit board 120 on the second edge E2.

Further, the circuit board 120 of the first mezzanine card 12 has a through hole 120a. The third engaging portion 140d of the engaging member 140 is coupled to the base 140a for The through hole 120a passes through the circuit board 120 of the first mezzanine card 12 and engages the top surface of the circuit board 120. The first engaging portion 140b and the third engaging portion 140d of the engaging member 140 can prevent the flow blocking device 14 from moving along the connecting direction of the first engaging portion 140b and the third engaging portion 140d. Similarly, the second engaging portion 140c and the third engaging portion 140d of the engaging member 140 can also prevent the flow blocking device 14 from moving along the connecting direction of the second engaging portion 140c and the third engaging portion 140d. Thereby, the fixing strength between the circuit board 120 of the first mezzanine card 12 and the flow blocking device 14 has a high reliability.

As shown in FIGS. 2 and 3, in the present embodiment, the base 140a of the engaging member 140 has a stopper portion 140a1 on both sides. When the spoiler 142 of the flow blocking device 14 is rotated relative to the engaging member 140 to abut against the limiting portion 140a1, the spoiler 142 is located at the deployed position. Thereby, when the elastic member 144 of the flow blocking device 14 rotates the spoiler 142 relative to the engaging member 140 toward the deployed position, the spoiler 142 can only rotate to at most the deployed position without exceeding.

From the above detailed description of the specific embodiments of the present invention, it can be clearly seen that the flow blocking device and the sandwich card combination of the present invention have the advantage that the flow blocking device can effectively guide the heat dissipation airflow in the casing of the computer system. To the main heating position of the mezzanine card, the heat dissipation efficiency of the mezzanine card is improved. Moreover, when only one mezzanine card is provided in the computer system, the elastic member of the flow blocking device can automatically rotate the spoiler to the deployed position and block the passage between the sandwich card and the housing. When two mezzanine cards are installed in the computer system, the baffle of the choke device can also be simply stored between the two mezzanine cards. In addition, the choke device is assembled to the circuit board of the mezzanine card in a snap-fit manner, so that the circuit configuration on the circuit board is not affected, and the production line assembly is more favorable.

Although the present invention has been disclosed in the above embodiments, it is not limited thereto. The scope of the present invention is defined by the scope of the appended claims, unless otherwise claimed.

10‧‧‧shell

100‧‧‧floor

11‧‧‧ channel

12‧‧‧First Mezzanine Card

120‧‧‧ boards

120a‧‧‧through hole

14‧‧‧Flow blocking device

140‧‧‧Cards

140a‧‧‧Base

140a1‧‧‧Limited

140b‧‧‧First Joint Department

140c‧‧‧Second engagement

140d‧‧‧The third joint

142‧‧‧Baffle

144‧‧‧Flexible parts

16‧‧‧Second mezzanine card

160‧‧‧ boards

A‧‧‧Disassembly direction

B‧‧‧Axial

E1‧‧‧ first edge

E2‧‧‧ second edge

Θ‧‧‧ angle

1A is a partial side elevational view showing the assembly of a mezzanine card assembly in a housing of a computer system in accordance with an embodiment of the present invention, wherein the housing is shown in cross section and the second mezzanine card is not disposed in the housing.

FIG. 1B is another partial side view showing the first panel, wherein the second mezzanine card has been disposed in the housing.

2 is a perspective view showing the first mezzanine card and the flow blocking device in FIG. 1A, wherein the spoiler is rotated relative to the engaging member to the deployed position.

Fig. 3 is a perspective view showing the flow blocking device of Fig. 2.

Fig. 4 is a partially enlarged view showing the flow blocking device of Fig. 3.

12‧‧‧First Mezzanine Card

120‧‧‧ boards

120a‧‧‧through hole

14‧‧‧Flow blocking device

140‧‧‧Cards

140a‧‧‧Base

140a1‧‧‧Limited

140b‧‧‧First Joint Department

140c‧‧‧Second engagement

140d‧‧‧The third joint

142‧‧‧Baffle

144‧‧‧Flexible parts

E1‧‧‧ first edge

E2‧‧‧ second edge

Claims (8)

A choke device is applied to a mezzanine card, the mezzanine card comprising a circuit board having a first edge and a second edge that are connected and not parallel, the choke device comprising: a card a clamping member for engaging the circuit board, the engaging member comprising: a base for abutting against a bottom surface of the circuit board; a first engaging portion connecting the base for the first edge A top surface of the circuit board is coupled to the top surface; and a second engaging portion is coupled to the base for engaging the top surface of the circuit board on the second edge; a spoiler is pivotally connected to the card a member for rotating between the folded position and a deployed position relative to the engaging member; and an elastic member compressed between the engaging member and the spoiler for opposing the spoiler The engaging member is rotated toward the deployed position. The current blocking device of claim 1, wherein the circuit board further has a through hole, the engaging member further includes a third engaging portion, the third engaging portion is connected to the base for the through hole Pass through the board and snap the top surface of the board. The flow blocking device of claim 1, wherein the base has a limiting portion, and the spoiler is located in the deployed position when the blocking plate is rotated relative to the engaging member against the limiting portion. . A mezzanine card combination is applied to a computer system, the computer system comprising a casing, the casing comprising a bottom plate, the sandwich card combination comprising: a first mezzanine card, detachably disposed in the casing, the The first mezzanine card includes a circuit board spaced apart above the bottom plate, wherein the circuit board has a channel between the circuit board and the bottom plate, the circuit board has a first edge and a second edge that are connected and not parallel; and a The flow blocking device comprises: a latching member for engaging the circuit board, the latching member comprises: a base for abutting against a bottom surface of the circuit board; and a first engaging portion connecting the base For engaging the top surface of the circuit board on the first edge; and a second engaging portion connecting the base for engaging the top surface of the circuit board on the second edge; a flow plate pivotally connected to the engaging member for rotating between the folded position and a deployed position relative to the engaging member; and an elastic member compressed between the engaging member and the spoiler for use Rotating the spoiler relative to the engaging member toward the deployed position, wherein Movable to the deployed position of the spoiler system of blocking the passage. The mezzanine card assembly of claim 4, wherein the circuit board further has a through hole, the engaging member further comprising a third engaging portion, the third engaging portion connecting the base for the through hole Pass through the board and snap the top surface of the board. The mezzanine card assembly of claim 4, wherein the base has a limiting portion, and the spoiler is located in the deployed position when the blocking plate is rotated relative to the engaging member against the limiting portion. . The mezzanine card assembly of claim 4, wherein the first mezzanine card is detachably disposed in the housing in a dismounting direction, the spoiler is rotated relative to the engaging member along an axial direction, and the disassembling The orientation is perpendicular to the axial direction. The mezzanine card assembly of claim 7, further comprising a second mezzanine card for passing through the flow blocking device in the dismounting direction to enter the channel and detachably disposed in the housing, wherein the blocking The flow plate is located between the circuit board and the second mezzanine card and abuts the second mezzanine card.