JP2023094869A - Information processing device - Google Patents

Abstract

To provide an information processing device capable of taking noise countermeasures of a power supply component even if a housing is made thin.SOLUTION: An information processing device includes: a control board having a mounting surface; a housing for storing the control board and having an opposite inner surface facing the mounting surface; a power supply component to be mounted on the mounting surface; a shield member having a plate-like top plate part arranged between the mounting surface and the opposite inner surface in a surface orthogonal direction perpendicular to the control board and extending in parallel with the control board, and grounded to the control board to shield an electromagnetic wave; and a gasket member erected from the top plate part to come into contact with the opposite inner surface. A through hole penetrating the top plate surface in the surface orthogonal direction is formed at a part facing the power supply component in the surface orthogonal direction in the top plate part.SELECTED DRAWING: Figure 3

Description

The present invention relates to an information processing device.

Patent Literature 1 discloses an information processing apparatus including a housing and a control board housed in the housing. The control board has a mounting surface on which electronic components such as power supply components are mounted. The mounting surface is provided with a shield case that covers the power supply components and shields electromagnetic waves. The shield case has a role of protecting other electronic parts such as an antenna from power supply parts and the like that tend to generate electromagnetic noise.

JP 2013-157940 A

2. Description of the Related Art In recent years, there has been an increasing demand for thinner information processing apparatuses such as notebook computers. In an information processing apparatus having a thin housing, the inner peripheral surface of the housing and the power supply components mounted on the control board are close to each other. Therefore, it is difficult to secure a space for arranging the shield case, and it may be difficult to adopt a noise countermeasure method such as that shown in Patent Document 1.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an information processing apparatus capable of suppressing noise in power supply components even when the housing is made thin.

To solve the above problems, an information processing apparatus according to an aspect of the present invention includes a control board having a mounting surface, a housing that houses the control board and has an inner surface facing the mounting surface, and a plate-like top plate portion arranged between a power supply component mounted on a mounting surface and the mounting surface and the opposing inner surface in a direction perpendicular to the control substrate and extending parallel to the control substrate; a shielding member that is grounded to the control board and shields electromagnetic waves; and a gasket member that is erected on the top plate portion and contacts the opposing inner surface, wherein the top plate portion is provided in the perpendicular direction. A through-hole that penetrates the top plate portion in the perpendicular direction is formed in a portion facing the power supply component.

According to the aspect of the present invention, since the through hole is formed in the portion of the top plate of the shielding member that faces the power supply component, structural interference between the power supply component and the shielding member is less likely to occur. Further, since the gasket member is provided between the top plate portion and the housing, it is possible to suppress leakage of electromagnetic noise from the gap between the top plate portion and the housing. Therefore, even if the housing is made thinner, it is possible to take measures against noise in power supply components.

wherein the gasket member is arranged along at least a part of the outer peripheral edge of the top plate portion, and at least one shielding region in which the gasket member is arranged on the outer peripheral edge of the top plate portion; There may be at least one unshielded area in which the gasket member is not disposed.

In this case, leakage of electromagnetic noise from the gap between the shielding member and the housing can be suppressed more reliably. In addition, the gasket member is less likely to block the air flow in the housing, and it is possible to suppress temperature rise during use of the information processing device.

Further, the information processing apparatus further includes a fan module housed in the housing, and the outer peripheral edge of the top plate portion includes a first side facing the fan module in a direction orthogonal to the perpendicular direction. , the non-shielding area may be arranged on at least a part of the first side.

In this case, the gasket member is less likely to obstruct the flow of air toward the fan module. Thereby, the cooling efficiency of the fan module can be improved.

Further, the casing is formed with an air intake portion including an air intake hole that is open on the opposing inner surface and penetrates the casing. The non-shielding area may be arranged in the facing portion.

In this case, the gasket member is less likely to block the flow of air flowing into the housing from the outside of the housing. As a result, it is possible to more reliably suppress the temperature rise during use of the information processing device.

Further, the information processing device further includes an antenna housed in the housing, and the outer peripheral edge of the top plate portion includes a second side on which at least a portion of the shielding area is arranged, and the power supply component and the The antenna may be arranged on the opposite side across the second side.

In this case, the antenna, which is susceptible to electromagnetic noise, can be effectively protected from the power supply component by the gasket member.

Further, the top plate portion has a top plate inner surface facing the mounting surface, and the distance between the top plate inner surface and the mounting surface in the perpendicular direction is the distance between the power source component in the perpendicular direction. It may be smaller than the dimension.

In this case, the thickness of the shielding member can be reduced by bringing the inner surface of the top plate closer to the mounting surface. This makes it easier to make the housing thinner.

According to the aspect of the present invention, there is provided an information processing apparatus capable of noise countermeasures even if the housing is made thin.

1 is a perspective view showing an information processing device according to an embodiment of the present invention; FIG. 2 is a view of the inside of a housing of the information processing apparatus shown in FIG. 1 as viewed from arrow II. FIG. 3 is a cross-sectional view taken along line III-III shown in FIG. 2; FIG. 2 is a view of part of the information processing apparatus shown in FIG. 1 as viewed from arrow IV; FIG.

An information processing apparatus 1 according to an embodiment of the present invention will be described below with reference to the drawings.
As shown in FIG. 1 , the information processing apparatus 1 includes a control board (motherboard) 20 and a housing 10 that accommodates the control board 20 . The control board 20 has a mounting surface 20a (see also FIGS. 2 and 3).

The information processing apparatus 1 according to this embodiment is a so-called clamshell notebook computer, and the housing 10 includes a first housing 10A and a second housing 10B that are rotatably connected to each other. The first housing 10A has a control board 20, a keyboard 82, a click pad 83, and the like. The first housing 10A is also called a system housing 10A or a base housing 10A. The second housing 10B has a display 81 and the like. The second housing 10B is also called a display housing 10B. However, the example of the information processing device 1 is not limited to a notebook computer. For example, the information processing device 1 may be a smart phone, a tablet terminal, a game machine, or the like. In these cases, the housing 10 may not include the second housing 10B, and the first housing 10A may have the display. Hereinafter, for the sake of explanation, only the first housing 10A may be simply referred to as the housing 10 in some cases.

The shape of the housing 10 (first housing 10A) according to the present embodiment is a flat box shape. More specifically, the housing 10 includes a first wall 11, a second wall 12 spaced apart from the first wall 11, an outer peripheral edge of the first wall 11, and an outer peripheral edge of the second wall 12. and a peripheral wall 13 connecting the The second wall 12 faces the second housing 10B (display 81) when the housing 10 is closed. In this embodiment, the keyboard 82 and click pad 83 are provided on the second wall 12 . The first wall 11 has a facing inner surface 11a that faces the inside of the housing 10 and faces the mounting surface 20a of the control board 20 (see also FIG. 3).

(direction definition)
Here, in this embodiment, an XYZ orthogonal coordinate system is set and the positional relationship of each component will be described. The Z-axis direction is a direction perpendicular to the control board 20 . The X-axis direction is a direction orthogonal to the Z-axis direction and is one direction in which the control board 20 extends. The Y-axis direction is a direction orthogonal to both the Z-axis direction and the X-axis direction, and is one direction in which the control board 20 extends. In this specification, the X-axis direction may be referred to as the first direction X, the Y-axis direction may be referred to as the second direction Y, and the Z-axis direction may be referred to as the perpendicular direction Z. One orientation along the first direction X is referred to as the +X orientation or rightward. The orientation opposite to the +X orientation is referred to as the -X orientation or leftward. One orientation along the second direction Y is referred to as the +Y orientation or upward. The direction opposite the +Y orientation is referred to as the -Y orientation or down. The direction from the second wall 12 to the first wall 11 of the housing 10 along the perpendicular direction Z is referred to as the +Z direction or the back side (of the housing 10). The orientation opposite to the +Z orientation is referred to as the -Z orientation or front side (of housing 10).

The control board 20 may be a multi-layer board (build-up board) or a single-layer board. The configuration of the control board 20 is not particularly limited, and is appropriately selected from known configurations. As shown in FIG. 2, the control board 20 according to this embodiment is housed on the +Y side of the housing 10 . However, the position of the control board 20 within the housing 10 can be changed as appropriate.

As shown in FIG. 2, in this embodiment, a plurality of power supply components 30 are mounted on the mounting surface 20a of the control board 20. As shown in FIG. Examples of the power supply component 30 include MOSFETs (metal oxide semiconductor field effect transistors), choke coils, capacitors and other electronic components. Electronic components other than the power supply component 30 may be mounted on the mounting surface 20a.

As shown in FIGS. 2 and 3, a shielding member 40 is provided on the mounting surface 20a. The shielding member 40 is made of a conductive material such as metal, and shields electromagnetic waves. As shown in FIG. 3 , the shielding member 40 according to this embodiment includes a top plate portion 41 and a ground portion 42 . The top plate portion 41 is arranged between the mounting surface 20a and the opposing inner surface 11a in the perpendicular direction Z. As shown in FIG. Moreover, the top plate portion 41 has a plate-like shape extending in the first direction X and the second direction Y. As shown in FIG. That is, the top plate portion 41 extends parallel to the control board 20 . As shown in FIG. 2, in the present embodiment, the top plate portion 41 is arranged so that all of the plurality of power supply components 30 are positioned inside the outer peripheral edge P of the top plate portion 41 when viewed from the perpendicular direction Z. extended. As shown in FIG. 3, the top plate portion 41 has a top plate inner surface 41a facing the mounting surface 20a and a top plate outer surface 41b facing the facing inner surface 11a.

As shown in FIG. 3 , the grounding portion 42 according to this embodiment has a plate-like shape extending from the outer peripheral edge of the top plate portion 41 toward the control board 20 . Also, the ground portion 42 is grounded to the control board 20 . Thereby, the shielding member 40 is grounded to the control board 20 . The configuration for grounding the grounding portion 42 to the control board 20 is not particularly limited, but for example, a configuration in which a clip (not shown) is provided on the mounting surface 20a and the grounding portion 42 is held between the clips may be employed. . As long as the shielding member 40 can be grounded to the control board 20, the grounding portion 42 does not have to be formed in a plate shape, and the configuration of the grounding portion 42 can be changed as appropriate.

As shown in FIG. 2 , a through hole 43 that penetrates the top plate portion 41 in the perpendicular direction Z is formed in a portion of the top plate portion 41 that faces the power supply component 30 in the perpendicular direction Z. As shown in FIG. In this embodiment, since a plurality of power supply components 30 are mounted on the mounting surface 20a, a plurality of through holes 43 are formed in the top plate portion 41. As shown in FIG.

As shown in FIG. 2, the shape of each through-hole 43 corresponds to the shape of the opposing power source component 30 . More specifically, the through hole 43 is formed along the outer circumference of the power supply component 30 and slightly larger than the outer circumference of the power supply component 30 when viewed from the perpendicular direction Z. As shown in FIG. Further, as shown in FIG. 3, the distance L1 between the top plate inner surface 41a and the mounting surface 20a in the perpendicular direction Z is smaller than the dimension L2 of the power supply component 30 in the perpendicular direction Z. As shown in FIG. Since the above-described through hole 43 is formed in the top plate portion 41, interference between the power supply component 30 and the top plate portion 41 is suppressed even if the distance L1 is smaller than the dimension L2. However, the distance L1 may be equal to the dimension L2 or may be greater than the dimension L2. Even in this case, since the top plate portion 41 has the through hole 43, interference between the power source component 30 and the top plate portion 41 is suppressed when the housing 10 is unexpectedly deformed by an external force or the like. be.

Note that the dimension L2 of each power supply component 30 may be equal to or different from each other. As shown in FIG. 3 , the through hole 43 may not be formed in a portion of the top plate portion 41 that faces the power supply component 30 whose dimension L2 is smaller than the distance L1 in the perpendicular direction Z. In other words, there may be power supply components 30 that do not have opposing through holes 43 . In other words, the power supply component 30 and the through hole 43 do not have to correspond to each other.

As shown in FIGS. 2 and 3, the information processing device 1 includes a gasket member 50. As shown in FIG. The gasket member 50 is erected on the top plate portion 41 (top plate outer surface 41 b ) of the shielding member 40 and is in contact with the opposing inner surface 11 a of the housing 10 . The gasket member 50 contains a conductive material such as metal and shields electromagnetic waves. Moreover, the gasket member 50 has elasticity. The gasket member 50 has a role of suppressing leakage of electromagnetic noise from a gap between the top plate portion 41 of the shielding member 40 and the first wall 11 of the housing 10 .

As shown in FIG. 2 , the gasket member 50 according to this embodiment is arranged along at least a portion of the outer peripheral edge P of the top plate portion 41 . That is, the outer peripheral edge P of the top plate portion 41 has at least one shielded area PA in which the gasket member 50 is arranged and at least one non-shielded area PB in which the gasket member 50 is not arranged. Details of the arrangement of the shielded area PA and the non-shielded area PB will be described later.

As shown in FIG. 2 , the information processing apparatus 1 according to this embodiment includes a fan module 60 housed in the housing 10 . The fan module 60 has a fan (not shown) that generates an airflow inside the housing 10 . The fan module 60 has a role of cooling the information processing device 1 by generating an airflow. The fan module 60 according to this embodiment is housed on the +Y side of the housing 10 . Also, the fan module 60 and the shielding member 40 are arranged to be offset from each other in the first direction X. As shown in FIG.

As shown in FIG. 4, a suction unit 14 is provided on the first wall 11 of the housing 10 according to this embodiment. The air intake portion 14 includes a plurality of air intake holes 14a that open in the opposing inner surface 11a and penetrate the housing 10 (first wall 11) in the perpendicular direction Z. As shown in FIG. With this configuration, air can be drawn from the outside of the housing 10 into the inside of the housing 10, and temperature rise during use of the information processing apparatus 1 can be suppressed. The number and shape of the air intake holes 14a included in the air intake portion 14 are not limited to the example shown in FIG. 4, and can be changed as appropriate.

As shown in FIG. 2 , the information processing device 1 according to this embodiment includes a plurality of antennas 70 housed in the housing 10 . Each antenna 70 transmits and receives electromagnetic waves. The type of antenna 70 is not particularly limited, but for example, each antenna 70 is an antenna compatible with MIMO (Multi-Input Multi-Output), WLAN (Wireless Local Area Network), WWAN (Wireless Wide Area Network), and the like. good too. The antenna 70 according to this embodiment is housed on the −Y side of the housing 10 and arranged along the peripheral wall 13 of the housing 10 .

The arrangement of the gasket member 50, that is, the arrangement of the shielded area PA and the non-shielded area PB will be described below. Hereinafter, for ease of explanation, one side of the outer peripheral edge P located on the -X side may be referred to as a first side P1, and one side located on the -Y side may be referred to as a second side P2. The first side P1 faces the fan module 60 in the first direction X. As shown in FIG. The plurality of power supply components 30 and the plurality of antennas 70 are arranged on opposite sides in the second direction Y with the second side P2 interposed therebetween. In other words, the second side P2 is positioned between the plurality of power supply components 30 and the plurality of antennas 70 in the second direction Y. As shown in FIG.

As shown in FIG. 2, the first side P1 of the outer peripheral edge P is provided with a non-shielding region PB extending over the entire first side P1. In other words, the gasket member 50 is not provided on the first side P1. This configuration prevents the gasket member 50 from blocking the flow of air toward the fan module 60 . However, the non-shielding area PB may be arranged only on part of the first side P1. That is, the gasket member (shielding area PA) may be arranged on a part of the first side P1.

Further, as shown in FIG. 4, a non-shielding region PB is arranged in a portion of the outer peripheral edge P that faces the air intake portion 14 (air intake hole 14a) in the direction Z perpendicular to the plane. In other words, the gasket member 50 is not provided in a portion of the outer peripheral edge P that faces the air intake portion 14 (air intake hole 14a) in the direction Z perpendicular to the plane. This configuration suppresses the gasket member 50 from hindering intake of air into the housing 10 via the air intake portion 14 .

As shown in FIG. 2, at least part of the second side P2 of the outer peripheral edge P is provided with a shielding area PA. In other words, the gasket member 50 is arranged on at least part of the second side P2. More specifically, a shielding area PA is arranged in a portion of the second side P2 of the outer peripheral edge P other than the portion facing the intake section 14 in the direction Z perpendicular to the plane. With this configuration, the antenna 70 which is susceptible to electromagnetic noise can be effectively protected by the gasket member 50 from the electromagnetic noise generated by the power supply component 30 .

Next, the operation of the information processing apparatus 1 configured as described above will be described.

2. Description of the Related Art In recent years, there has been an increasing demand for thinner information processing apparatuses such as notebook computers. In an information processing apparatus having a thin housing, the inner peripheral surface (facing inner surface 11a) of the housing is close to the power supply components mounted on the control board. Therefore, it becomes difficult to secure a space for arranging the shield case (shielding member 40), and it may be difficult to adopt the conventional noise countermeasure method using the shield case.

On the other hand, in the information processing apparatus 1 according to the present embodiment, since the through hole 43 is formed in the portion of the top plate portion 41 of the shielding member 40 that faces the power source component 30, the power source component 30 and the shielding member are separated from each other. Structural interference with 40 is less likely to occur. Further, since the gasket member 50 is provided between the top plate portion 41 and the housing 10 (first wall 11), electromagnetic noise does not leak through the gap between the top plate portion 41 and the housing 10. can be suppressed. Therefore, even if the housing 10 is made thinner, it is possible to take measures against noise of the power source component 30 .

As described above, the information processing apparatus 1 according to the present embodiment includes the control board 20 having the mounting surface 20a, the housing 10 containing the control board 20 and having the inner surface 11a facing the mounting surface 20a, A plate-like top extending parallel to the control board 20 and arranged between the power supply component 30 mounted on the mounting surface 20a and the mounting surface 20a and the opposing inner surface 11a in the perpendicular direction Z perpendicular to the control board 20. A shielding member 40 that has a plate portion 41 and is grounded to the control board 20 to shield electromagnetic waves, and a gasket member 50 that is erected on the top plate portion 41 and is in contact with the opposing inner surface 11a. A through hole 43 that penetrates the top plate portion 41 in the perpendicular direction Z is formed in a portion facing the power supply component 30 in the perpendicular direction Z. As shown in FIG.

With this configuration, even if the housing 10 is made thinner, it is possible to take measures against noise of the power source component 30 .

The gasket member 50 is arranged along at least a part of the outer peripheral edge P of the top plate portion 41, and at least one shielding area PA in which the gasket member 50 is arranged on the outer peripheral edge P of the top plate portion 41. and at least one non-shielded area PB in which the gasket member 50 is not arranged. With this configuration, leakage of electromagnetic noise from the gap between the shielding member 40 and the housing 10 can be more reliably suppressed. In addition, the gasket member 50 is less likely to block the airflow in the housing 10, and temperature rise during use of the information processing apparatus 1 can be suppressed.

The information processing apparatus 1 according to the present embodiment further includes a fan module 60 housed in the housing 10, and the outer peripheral edge P of the top plate portion 41 is provided in a direction (first direction X) includes a first side P1 facing the fan module 60, and a non-shielding area PB is arranged on at least part of the first side P1. With this configuration, the gasket member 50 is less likely to block the flow of air toward the fan module 60 . Thereby, the cooling efficiency of the fan module 60 can be improved.

Further, the housing 10 is formed with an air intake portion 14 including an air intake hole 14a that is open to the opposing inner surface 11a and penetrates the housing 10. The air intake portion 14 is formed in the outer peripheral edge P of the top plate portion 41 in the perpendicular direction Z. A non-shielding area PB is arranged in a portion facing the portion 14 . With this configuration, the gasket member 50 is less likely to block the flow of air flowing into the housing 10 from the outside of the housing 10 . As a result, temperature rise during use of the information processing device 1 can be suppressed more reliably.

Further, the information processing apparatus 1 according to the present embodiment further includes an antenna 70 housed in the housing 10, and the outer peripheral edge P of the top plate portion 41 is at least partly arranged on the second side where the shielding area PA is arranged. Including P2, the power supply component 30 and the antenna 70 are arranged on opposite sides of the second side P2. With this configuration, the gasket member 50 can effectively protect the antenna 70 , which is susceptible to electromagnetic noise, from the power supply component 30 .

The top plate portion 41 has a top plate inner surface 41a facing the mounting surface 20a, and a distance L1 between the top plate inner surface 41a and the mounting surface 20a in the perpendicular direction Z 30 is smaller than the dimension L2. With this configuration, the top plate inner surface 41a and the mounting surface 20a are brought close to each other, and the thickness of the shielding member 40 (the dimension of the shielding member 40 in the perpendicular direction Z) can be reduced. This makes it easier to make the housing 10 thinner.

The technical scope of the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the present invention.

For example, although the mounting surface 20 a of the control board 20 faces the first wall 11 in the above embodiment, the mounting surface 20 a may face the second wall 12 . In other words, the second wall 12 may have the facing inner surface 11a.

Also, the direction in which the shielding member 40 (outer peripheral edge P of the top plate portion 41) and the fan module 60 face each other may not be the first direction X. In other words, the first side P1 may not be the side of the outer peripheral edge P located on the -X side.

Also, the antenna 70 does not have to be accommodated on the -Y side of the housing 10 . In this case, the second side P2 located between the power supply component 30 and the antenna 70 may not be the side located on the -Y side of the outer peripheral edge P.

Also, the non-shielding area PB may not be arranged on the first side P1. Similarly, the shielding area PA does not have to be arranged in a portion of the outer peripheral edge P that faces the perpendicular direction Z. The shielding area PA may not be arranged on the second side P2. Moreover, the gasket member 50 does not have to be arranged along the outer peripheral edge P of the top plate portion 41 .

Also, the information processing apparatus 1 may include only one power supply component 30 . In this case, only one through hole 43 may be formed in the top plate portion 41 .

Further, the information processing device 1 does not have to include the fan module 60 .

Further, the intake section 14 may not be formed in the housing 10 .

Also, the information processing device 1 may have three or less or five or more antennas 70 . Alternatively, information processing device 1 may not include antenna 70 .

In addition, it is possible to appropriately replace the components in the above-described embodiments with well-known components without departing from the scope of the present invention, and the above-described embodiments and modifications may be combined as appropriate.

DESCRIPTION OF SYMBOLS 1... Information processing apparatus 10... Case 11a... Opposed inner surface 20... Control board 20a... Mounting surface 30... Power supply component 40... Shielding member 41... Top plate part 41a... Top plate inner surface 43... Through hole 50... Gasket member 60... Fan Module 70...Antenna P...Peripheral edge PA...Shielding area PB...Non-shielding area P1...First side P2...Second side Z...Perpendicular direction

Claims (6)

a control board having a mounting surface;
a housing that houses the control board and has a facing inner surface that faces the mounting surface;
a power supply component mounted on the mounting surface;
It has a plate-shaped top plate portion that is arranged between the mounting surface and the opposing inner surface in a direction perpendicular to the control substrate and extends parallel to the control substrate, and is grounded to the control substrate. a shielding member that shields electromagnetic waves;
a gasket member provided upright on the top plate portion and in contact with the opposing inner surface;
The information processing apparatus, wherein a through hole penetrating through the top plate portion in the perpendicular direction is formed in a portion of the top plate portion that faces the power source component in the perpendicular direction. The gasket member is arranged along at least a part of the outer peripheral edge of the top plate,
2. The apparatus according to claim 1, wherein at least one shielded area in which said gasket member is arranged and at least one non-shielded area in which said gasket member is not arranged are present on the outer peripheral edge of said top plate portion. information processing equipment. further comprising a fan module housed in the housing,
an outer peripheral edge of the top plate includes a first side facing the fan module in a direction perpendicular to the perpendicular direction;
3. The information processing apparatus according to claim 2, wherein said non-shielding area is arranged on at least part of said first side. The housing is formed with an air intake section including an air intake hole that opens to the facing inner surface and penetrates the housing,
4. The information processing apparatus according to claim 2, wherein the non-shielding area is arranged in a portion of the outer peripheral edge of the top plate portion that faces the air intake portion in the perpendicular direction. Further comprising an antenna accommodated in the housing,
The outer peripheral edge of the top plate portion includes a second side on which the shielding area is arranged at least in part,
5. The information processing apparatus according to claim 2, wherein said power supply component and said antenna are arranged on opposite sides of said second side. The top plate portion has a top plate inner surface facing the mounting surface,
The information processing apparatus according to any one of claims 1 to 5, wherein a distance between the top plate inner surface and the mounting surface in the perpendicular direction is smaller than a dimension of the power supply component in the perpendicular direction. .

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