JP2021096654A - Electronic apparatus - Google Patents

Abstract

To provide an electronic apparatus with a novel configuration which has been improved so as to further reduce inconvenience, for example, to further reduce the size.SOLUTION: An electronic apparatus 1 comprises, for example: a housing 2; a main substrate 3 (a substrate) which is housed in the housing 2 and on which a CPU 31 (a heat generating element) is mounted; a heat sink 5 attached to the CPU 31; a graphics card 10 (an expansion card) housed in the housing 2 and arranged side by side with the heat sink 5 in a Z-direction (a first direction) crossing the main substrate 3; and a fan 4 (a first fan) attached to the housing 2 and arranged side by side with the heat sink 5 and the graphics card 10 in an X-direction (a second direction) crossing the Z-direction.SELECTED DRAWING: Figure 2

Description

The present invention relates to electronic devices.

Conventionally, a substrate on which a heating element is mounted, a heat sink attached to the heating element, an expansion card arranged in the lateral direction of the heat sink and the substrate, and a plurality of heat sinks and expansion cards arranged in the longitudinal direction of the substrate. An electronic device including a fan is known (see, for example, Patent Document 1).

Special Table 2015-518655

In this type of electronic device, it would be beneficial if a new configuration could be obtained that was improved to reduce inconvenience, such as being able to be configured more compactly.

Therefore, one of the problems of the present invention is to obtain an electronic device having a new configuration improved so as to reduce inconvenience.

The electronic device according to the first aspect of the present invention includes a housing, a substrate housed in the housing and mounted on a heating element, a heat sink attached to the heating body, and housed in the housing. An expansion card mounted on the housing and aligned with the heat sink in the first direction intersecting the substrate, and a first fan mounted on the housing and aligned with the heat sink and the expansion card in the second direction intersecting the first direction. Be prepared.

Further, a guide member having an inner wall for partitioning the heat sink and the expansion card in the first direction is provided.

Further, a gap in the first direction is provided between the inner wall and the expansion card.

Further, the expansion card accommodates a second fan, the second fan, an intake port facing the gap, an exhaust port facing the outside of the casing, and air extending from the intake port to the exhaust port. It has a casing provided with a passage, and a card body supported by the casing and facing the air passage.

Further, the inner wall is positioned so as to overlap the intake port when viewed from the first direction.

Further, the guide member has a support portion that protrudes from the inner wall in the first direction and supports the first end portion of the expansion card.

Further, the expansion card has a second end portion that is opposite to the first end portion and is detachably connected to the connector, and the guide member is the second end portion from the support portion. It has ribs that extend to the opposite side of the end and can come into contact with the outer wall of the housing.

Further, the guide member has a fixed portion fixed to the heat sink, and the support portion is positioned so as to be displaced from the fixed portion at least in the first direction or in a direction opposite to the first direction.

Further, the expansion card is positioned away from the substrate in the first direction from the third end portion of the heat sink in the first direction.

According to the above aspect of the present invention, it is possible to obtain an electronic device having a new configuration improved so as to have less inconvenience such as being able to be configured more compactly.

FIG. 1 is an exemplary perspective view of the electronic device of the embodiment. FIG. 2 is an exemplary XZ cross-sectional view of the electronic device of FIG. FIG. 3 is an exemplary perspective view of a guide member of the electronic device of the embodiment. FIG. 4 is an exemplary YZ cross-sectional view of the electronic device of FIG.

Hereinafter, exemplary embodiments of the present invention will be disclosed. The configurations of the embodiments shown below, as well as the actions and effects produced by the configurations, are examples. The present invention can also be realized by configurations other than those disclosed in the following embodiments. Further, according to the present invention, it is possible to obtain at least one of various effects (including derivative effects) obtained by the configuration.

In addition, in this specification, the order number is used only for distinguishing a part, a member, a part, a position, a direction, etc., and does not indicate an order or a priority.

[Embodiment]
FIG. 1 is a perspective view of the electronic device 1 of the embodiment. As shown in FIG. 1, the electronic device 1 is configured as, for example, a desktop personal computer, and includes a housing 2, a main board 3, a fan 4, a guide member 7, a power supply device 8, a drive unit 9, and a graphic. It is equipped with a card 10, a fan duct 15, and the like. The main board 3 is an example of a board, and the graphic card 10 is an example of an expansion card.

In the following description, for convenience, three directions orthogonal to each other are defined. The X direction is along the depth direction (front-back direction) of the housing 2 and along the longitudinal direction of the main substrate 3. The Y direction is along the width direction (left-right direction) of the housing 2 and along the lateral direction of the main board 3. The Z direction is along the thickness direction (vertical direction) of the housing 2 and along the thickness direction of the main substrate 3.

Further, in the following description, for convenience, the X direction is also referred to as the front, the opposite direction of the X direction is also referred to as the rear, the Y direction is also referred to as the right, the opposite direction of the Y direction is also referred to as the left, and the Z direction is upward and the Z direction. The opposite direction of is sometimes referred to as downward. The Z direction is an example of the first direction, and the X direction is an example of the second direction.

As shown in FIG. 1, the housing 2 is configured in, for example, a rectangular parallelepiped box shape short in the Z direction. The housing 2 has a plurality of wall portions such as a bottom wall 2a, a top wall 2b (see FIG. 2), a front wall 2c, a left wall 2d, a rear wall 2e, and a right wall 2f. The bottom wall 2a is also referred to as a lower wall or the like, and the top wall 2b is also referred to as an upper wall or the like. Further, the front wall 2c, the left wall 2d, the rear wall 2e, and the right wall 2f are also referred to as a side wall, a peripheral wall, and the like.

Both the bottom wall 2a and the top wall 2b extend along a direction (XY plane) orthogonal to the Z direction, and are provided parallel to each other at intervals in the Z direction. The bottom wall 2a constitutes the lower end of the housing 2, and the top wall 2b constitutes the upper end of the housing 2. The bottom wall 2a may be provided with rubber legs that project in the opposite direction in the Z direction and support the housing 2 in a state of being separated from a shelf (not shown) or an installation surface such as a desk or table.

Both the left wall 2d and the right wall 2f extend along a direction (XZ plane) orthogonal to the Y direction, and are provided parallel to each other at intervals in the Y direction. The right wall 2f extends between the bottom wall 2a and the top wall 2b in the Y direction, and the left wall 2d extends between the bottom wall 2a and the top wall 2b in the opposite direction in the Y direction. .. The right wall 2f constitutes the right end portion of the housing 2, and the left wall 2d constitutes the left end portion of the housing 2.

Further, the left wall 2d or the right wall 2f may be provided with rubber legs protruding along the Y direction, for example.

Both the front wall 2c and the rear wall 2e extend along a direction (YZ plane) orthogonal to the X direction, and are provided parallel to each other at intervals in the X direction. The front wall 2c extends between the bottom wall 2a and the end of the top wall 2b in the X direction, and the rear wall 2e extends between the end of the bottom wall 2a and the top wall 2b in the opposite direction in the X direction. .. The front wall 2c constitutes the front end portion of the housing 2, and the rear wall 2e constitutes the rear end portion of the housing 2.

The rear wall 2e is provided with an exhaust port 2t. The exhaust port 2t is configured as, for example, a portion where a plurality of small holes penetrating the rear wall 2e in the X direction are gathered. The exhaust port 2t can exhaust the air flow that has exchanged heat with the heat generating parts in the housing 2 to the outside of the housing 2 by the fan 4 or the fan 12 (see FIG. 2) of the graphic card 10 described later.

Further, the front wall 2c is provided with an intake port 2s (see FIG. 2). The intake port 2s is configured as, for example, a portion in which a plurality of small holes penetrating the front wall 2c in the X direction are gathered. A fan 4 is attached to the inside of the intake port 2s. The fan 4 is not limited to this example, and may be attached to the outside of the housing 2, for example.

Further, the housing 2 is composed of a combination of a plurality of parts (divided bodies) such as the base 21 and the cover 22 (see FIG. 2), for example. The base 21 has a bottom wall 2a, a front wall 2c and a rear wall 2e, and a part of the left wall 2d and the right wall 2f. The cover 22 has a top wall 2b and a part of the left wall 2d and the right wall 2f. The base 21 and the cover 22 are connected to each other by a claw, a screw, or the like. The base 21 and cover 22 are made of a metal material such as stainless steel or aluminum.

FIG. 2 is an XZ cross-sectional view of the electronic device 1 of FIG. As shown in FIG. 2, the fan 4 is, for example, an axial fan that can rotate around a rotation center Ax1 extending along the X direction, and is positioned side by side with the heat sink 5 and the graphic card 10 described later in the X direction. ing. In other words, the fan 4 is shared by the heat sink 5 and the graphic card 10. Further, the fan duct 15 is located in the Z direction of the fan 4. The fan 4 is an example of the first fan.

The fan 4 has, for example, a hub 4a, a casing 4b, and a plurality of blades 4c. The hub 4a is formed in a cylindrical shape centered on the rotation center Ax1 (rotation axis). The plurality of blades 4c project outward from the hub 4a in the radial direction of the rotation center Ax1 and are arranged in the circumferential direction around the rotation center Ax1.

Further, the plurality of blades 4c are located in an annular opening provided between the hub 4a and the casing 4b. The fan 4 is an intake fan that introduces air into the housing 2 through the annular opening by rotating the blade 4c around the rotation center Ax1. The fan 4 is not limited to this example, and may be an exhaust fan that discharges air to the outside of the housing 2 through the annular opening by rotating the blade 4c around the rotation center Ax1.

The main board 3 is located in the direction opposite to the X direction of the fan 4. The main substrate 3 is formed in the shape of a quadrangular plate provided parallel to the bottom wall 2a at intervals in the Z direction. A plurality of electronic components such as a CPU 31 (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory) are mounted on the upper surface of the main board 3. The wiring in the main board 3 and these plurality of electronic components form at least a part of the control circuit of the electronic device 1. The main board 3 is also referred to as a motherboard or the like.

The heat sink 5 is attached to the upper surface of the CPU 31. The heat sink 5 has, for example, a base plate 5a, a plurality of fins 5b, a protruding portion 5c, and the like. The protruding portion 5c protrudes from the base plate 5a in the opposite direction in the Z direction, and is thermally connected to the CPU 31 via heat conductive grease or the like. The protruding portion 5c is not limited to this example, and may be provided in a state of being in direct contact with the CPU 31. The CPU 31 is an example of a heating element.

The base plate 5a is formed in the shape of a quadrangular plate provided parallel to the main substrate 3 at intervals in the Z direction. In the present embodiment, the size of the base plate 5a is larger than that of the CPU 31 and the protruding portion 5c. As a result, the surface area of the heat sink 5 is increased. The base plate 5a is fixed to the main substrate 3 by a binder 42 (see FIG. 3) such as a screw or a bolt. The heat sink 5 is made of a metal material such as aluminum.

Each of the plurality of fins 5b (see FIG. 3) radially protrudes from the base plate 5a to the side opposite to the protruding portion 5c and extends in the X direction. The plurality of fins 5b are arranged at intervals from each other in the circumferential direction around the center of rotation extending in the X direction. The heat sink 5 can cool the CPU 31 by exchanging heat between the plurality of fins 5b and the cooling air of the fan 4 flowing between the fins 5b. The fin 5b is also referred to as a heat radiating portion or the like.

The guide member 7 is attached to the heat sink 5 so as to cover at least a part of the fins 5b from the Z direction. As shown in FIG. 2, the guide member 7 has an inner wall 7a that separates the heat sink 5 and the graphic card 10 in the Z direction. The inner wall 7a divides the cooling air from the fan 4 into at least an air flow for the heat sink 5 and an air flow for the graphic card 10.

The graphic card 10 is located on the opposite side of the guide member 7 from the heat sink 5, that is, in the Z direction. In other words, the graphic card 10 is aligned with the heat sink 5 in the Z direction. The graphic card 10 has, for example, a substrate 11, a fan 12, a casing 13, a holder 14, and the like. A graphic card is an example of an expansion card, and is also called an expansion card device, an expansion unit, an expansion module, or the like.

The fan 12 is, for example, a centrifugal fan that can rotate around a rotation center Ax2 extending along the Z direction, and is housed in a casing 13. The fan 12 generates an air flow that is sucked into the casing 13 from the intake port 13a and discharged from the exhaust port 13b via the air passage 13c by rotating around the rotation center Ax2 of the blade (not shown). The fan 12 is an example of a second fan, and is also called a sirocco fan, a blower fan, or the like.

The substrate 11 is supported by the casing 13. The substrate 11 is formed in a rectangular plate shape provided in parallel with the top wall 2b. The substrate 11 has, for example, a lower surface facing the air passage 13c, and a plurality of electronic components such as a GPU (Graphics Processing Unit) are mounted on the lower surface. The substrate 11 is an example of a card body, and the GPU is an example of a heating element.

The casing 13 is provided with an intake port 13a, an exhaust port 13b, and an air passage 13c. The intake port 13a is opened in the opposite direction in the Z direction and faces a gap 50 provided between the casing 13 and the inner wall 7a, which will be described later. The exhaust port 13b is opened in the direction opposite to the X direction and faces the outside of the housing 2 via the exhaust port 2t of the rear wall 2e. The air passage 13c is composed of a wall portion of the casing 13 and extends in the X direction so as to extend between the intake port 13a and the exhaust port 13b.

FIG. 3 is a perspective view of the guide member 7. As shown in FIG. 3, the guide member 7 has, for example, an inner wall 7a, an end wall 7b, a slanted wall 7c, a mounting wall 7d, a support portion 7e, an operation portion 7g, a rib 7h, and the like. The inner wall 7a is formed in the shape of a quadrangular plate provided parallel to the base plate 5a at intervals in the Z direction. The inner wall 7a partitions the heat sink 5 and the graphic card 10. The inner wall 7a is also referred to as a partition wall, a base wall, or the like.

Further, the inner wall 7a covers the end portion 5d (see FIG. 2) of the heat sink 5 in the Z direction, and is interposed at a position in the middle of the heat transfer path from the heat sink 5 to the graphic card 10. The guide member 7 is made of a heat insulating material such as a synthetic resin. Therefore, the inner wall 7a is also referred to as a heat insulating wall or the like. The end portion 5d is an example of the third end portion.

The end wall 7b is provided at the end of the inner wall 7a in the direction opposite to the X direction, that is, at the end opposite to the fan 4. The end wall 7b projects from the inner wall 7a in the opposite direction in the Z direction and extends along the Y direction. The end wall 7b guides the air flow flowing in the direction opposite to the X direction between the plurality of fins 5b of the heat sink 5 in the opposite direction in the Z direction, that is, the side opposite to the graphic card 10.

The inclined wall 7c is provided at an end portion of the end wall 7b in the direction opposite to the Z direction. The inclined wall 7c is inclined so as to go in the opposite direction to the X direction as it approaches the main substrate 3 (see FIG. 2). The inclined wall 7c guides, for example, the air flow flowing inside the guide member 7 described above toward a heating element 32 different from the CPU 31 mounted on the main substrate 3.

As shown in FIG. 3, the mounting walls 7d are provided at both ends of the inner wall 7a in the Y direction. The mounting wall 7d extends from the inner wall 7a in the opposite direction in the Z direction. A plurality of mounting walls 7d are provided on the guide member 7 at intervals in the X direction, and a part of the heat sink 5 is exposed in the Y direction and the opposite directions in the Y direction. The end of the mounting wall 7d in the opposite direction in the Z direction is fixed to the base plate 5a by a connector 41 such as a screw or a bolt. The mounting wall 7d is an example of a fixed portion.

The support portion 7e is provided at an end portion of the inner wall 7a in the direction opposite to the Y direction. Further, the support portion 7e is positioned so as to be offset from the mounting wall 7d in the direction opposite to the X direction. The support portion 7e extends from the inner wall 7a in the X direction with a constant width in the Z direction. Further, a bent portion is provided between the support portion 7e and the inner wall 7a. The support portion 7e can be bent (deformed) around the center of rotation extending in the X direction by the bent portion.

Further, the support portion 7e is provided with a recess 7e1 (see FIG. 4) recessed in the direction opposite to the Y direction from the surface in the Y direction. The end portion 11a of the graphic card 10 (board 11) is inserted into the recess 7e1. The opening width of the recess 7e1 along the Z direction is substantially the same as the width of the end portion 11a along the Z direction. The end portion 11a is an example of the first end portion.

The operating portion 7g is provided at the end portion of the supporting portion 7e in the Z direction. As shown in FIG. 3, the operating portion 7g extends from the supporting portion 7e in the X direction with a constant width in the opposite direction to the Y direction. The operation unit 7g is a portion in which the operator operates the support unit 7e when the graphic card 10 described above is attached. The operating portion 7g is provided with a hooking portion that slightly protrudes in the Z direction and hooks the operator's finger.

The rib 7h is provided on the surface of the support portion 7e in the direction opposite to the Y direction. The rib 7h extends from the support portion 7e in the Z direction with a constant width in the opposite direction to the Y direction. The rib 7h has an end surface 7h1 (see FIG. 4) facing the left wall 2d of the housing 2 at intervals. In the present embodiment, when an impact, vibration, or the like is input to the housing 2, the end face 7h1 and the left wall 2d come into contact with each other, so that the graphic card 10 moves from the connector 6a of the substrate 6 in the opposite direction in the Y direction. It is suppressed from coming out.

FIG. 4 is a YZ cross-sectional view of the electronic device 1 of FIG. As shown in FIG. 4, the substrate 6 is located in the Y direction of the graphic card 10. The substrate 6 extends perpendicularly to the main substrate 3 and is parallel to the left wall 2d of the housing 2. The board 6 is attached to the connector 3a of the main board 3. The substrate 6 is provided with a plurality of electronic components, a connector 6a, and the like. The substrate 6 is also referred to as a backplane substrate, an expansion substrate, or the like.

The graphic card 10 is mounted on the connector 6a of the substrate 6. In other words, the graphics card 10 has an end 11b that is detachably connected to the connector 6a. The end portion 11b is an end portion of a plurality of end portions (side portions) of the graphic card 10 (board 11) that is opposite to the end portion 11a supported by the support portion 7e of the guide member 7 described above. The end portion 11b is an example of the second end portion.

In the present embodiment, the Y direction corresponds to the insertion direction of the graphic card 10 with respect to the connector 6a, and the opposite direction to the Y direction corresponds to the removal direction of the graphic card 10 with respect to the connector 6a. The width between the end face 7h1 and the left wall 2d along the Y direction is narrower than the fitting length of the connector 6a and the end portion 11b along the Y direction.

Further, the graphic card 10 is supported by the connector 6a and the support portion 7e of the guide member 7 described above with a gap 50 (see FIGS. 2 and 4) between the inner wall 7a and the Z direction. The gaps 50 are arranged in the direction opposite to the X direction of the fan 4, and function as an introduction passage for introducing the cooling air from the fan 4 into the casing 13 of the graphic card 10.

As described above, in the present embodiment, the electronic device 1 includes a housing 2, a main board 3 (board) housed in the housing 2 on which the CPU 31 (heating body) is mounted, and a heat sink 5 attached to the CPU 31. And the graphic card 10 (expansion card) housed in the housing 2 and lined up with the heat sink 5 in the Z direction (first direction) intersecting the main board 3, and the X direction (expansion card) attached to the housing 2 and intersecting the Z direction. A heat sink 5 and a fan 4 (first fan) arranged side by side with the graphic card 10 are provided in the second direction).

According to such a configuration, for example, in the housing 2 of the electronic device 1, the graphic cards 10 can be arranged so as to be overlapped with each other in the Z direction of the heat sink 5. Therefore, for example, the housing 2 and the electronic device 1 are more compactly configured in the X and Y directions intersecting the Z direction, as compared with the conventional structure in which the graphic card 10 and the heat sink 5 are arranged along the surface of the main substrate 3. can do. Further, for example, since the fan 4 can be shared by the heat sink 5 and the graphic card 10, the number of parts can be reduced as compared with the conventional structure in which the fan 4 is provided in association with each other. The labor and cost can be reduced, and the configuration can be made more compact.

Further, in the present embodiment, the electronic device 1 includes a guide member 7 having an inner wall 7a that separates the heat sink 5 and the graphic card 10 in the Z direction.

According to such a configuration, for example, the inner wall 7a of the guide member 7 can divide the cooling air from the fan 4 into the air flow on the heat sink 5 side and the air flow on the graphic card 10 side. As a result, for example, the air flow that has exchanged heat with the heat sink 5 is suppressed from flowing to the graphic card 10 side, and the temperature rise of the graphic card 10 is likely to be suppressed more effectively.

Further, in the present embodiment, a gap 50 in the Z direction is provided between the inner wall 7a and the graphic card 10.

According to such a configuration, for example, the gap 50 functions as an introduction passage for introducing the cooling air from the fan 4. As a result, for example, the cooling effect of the graphic card 10 may be more likely to be enhanced.

Further, in the present embodiment, the graphic card 10 includes a fan 12 (second fan), an intake port 13a accommodating the fan 12 and facing the gap 50, and an exhaust port 13b and an intake port 13a facing the outside of the casing 2. It has a casing 13 provided with an air passage 13c leading from the air passage 13b to the exhaust port 13b, and a substrate 11 (card body) supported by the casing 13 and facing the air passage 13c.

According to such a configuration, for example, it is mounted on the substrate 11 by utilizing the air flow of the fan 12 which is sucked from the intake port 13a facing the gap 50 and discharged from the exhaust port 13b via the air passage 13c. The heating element can be cooled. Therefore, for example, the temperature rise of the graphic card 10 is likely to be suppressed more effectively.

Further, in the present embodiment, the inner wall 7a is positioned so as to overlap the intake port 13a when viewed from the Z direction.

According to such a configuration, for example, the inner wall 7a can prevent the intake port 13a from being arranged so as to face the heat sink 5. Therefore, for example, it is possible to prevent the air flow that has exchanged heat with the heat sink 5 from being introduced into the graphic card 10 from the intake port 13a, and thus to prevent the cooling performance of the graphic card 10 from being lowered.

Further, in the present embodiment, the guide member 7 has a support portion 7e that protrudes from the inner wall 7a in the Z direction and supports the end portion 11a (first end portion) of the graphic card 10.

According to such a configuration, for example, the end portion 11a of the graphic card 10 can be supported by using the support portion 7e provided on the guide member 7. Therefore, for example, as compared with the case where the support member is provided separately from the guide member 7 in the housing 2, the number of parts can be reduced, so that the labor and cost of manufacturing can be further reduced. It can be configured more compactly.

Further, in the present embodiment, the graphic card 10 has an end portion 11b (second end portion) which is an end portion opposite to the end portion 11a and is detachably connected to the connector 6a, and the guide member 7 Has a rib 7h that extends from the support portion 7e to the side opposite to the end portion 11b (opposite direction in the Y direction) and can come into contact with the left wall 2d (outer wall) of the housing 2.

According to such a configuration, for example, the contact between the rib 7h and the left wall 2d limits the movement (deformation) of the support portion 7e to the opposite side (opposite direction in the Y direction) to the end portion 11b. Can be done. Thereby, for example, it is possible to prevent the graphic card 10 supported by the support portion 7e from coming off from the connector 6a due to an impact or vibration input to the housing 2.

Further, in the present embodiment, the guide member 7 has a mounting wall 7d (fixed portion) fixed to the heat sink 5 by the coupling tool 41, and the supporting portion 7e is displaced at least in the direction opposite to the mounting wall 7d in the X direction. Is positioned.

According to such a configuration, for example, the support portion 7e can be arranged farther away from the mounting wall 7d and thus the connector 41. As a result, for example, the support portion 7e can be more easily bent, the time and effort required for attaching the graphic card 10 can be reduced, and the impact transmitted from the housing 2 to the graphic card 10 can be more absorbed (reduced). ..

Further, in the present embodiment, the graphic card 10 is located farther from the main substrate 3 in the Z direction than the end portion 5d in the Z direction of the heat sink 5.

According to such a configuration, as compared with the case where, for example, the protruding portion partially protruding from the heat sink 5 in the Z direction and the graphic card 10 are arranged side by side in the X direction, as a cooling air introduction passage. The gap 50 and the like can be easily secured, and the cooling effect of the graphic card 10 may be more likely to be enhanced.

Although the embodiments of the present invention have been exemplified above, the above-described embodiment is an example and is not intended to limit the scope of the invention. The above-described embodiment can be implemented in various other forms, and various omissions, replacements, combinations, and changes can be made without departing from the gist of the invention. In addition, specifications such as each configuration and shape (structure, type, direction, type, size, length, width, thickness, height, number, arrangement, position, material, etc.) are changed as appropriate. Can be carried out.

1 ... Electronic equipment, 2 ... Housing, 2d ... Left wall (outer wall), 3 ... Main board (board), 4 ... Fan (first fan), 5 ... Heat sink, 5d ... End (third end), 7 ... Guide member, 7a ... Middle wall, 7d ... Mounting wall (fixed part), 7e ... Support part, 7h ... Rib, 10 ... Graphic card (expansion card), 11 ... Board (card body), 11a ... End part ( 1st end), 11b ... end (second end), 12 ... fan (second fan), 13 ... casing, 13a ... intake port, 13b ... exhaust port, 13c ... air passage, 31 ... CPU (heat generation) Body), 50 ... Gap, Ax1, Ax2 ... Center of rotation, X ... Second direction, Z ... First direction.

The electronic device according to the first aspect of the present invention includes a housing, a substrate housed in the housing and mounted on a heating element, a heat sink attached to the heating body, and housed in the housing. An expansion card that is aligned with the heat sink in the first direction intersecting the substrate, a first fan that is attached to the housing and is aligned with the heat sink and the expansion card in the second direction that intersects the first direction, and the above. A guide member having an inner wall that separates the heat sink and the expansion card in the first direction, projecting from the inner wall in the first direction, and having a support portion that supports the first end portion of the expansion card. To be equipped.

Claims (9)

With the housing
A substrate housed in the housing and on which a heating element is mounted,
A heat sink attached to the heating element and
An expansion card housed in the housing and lined up with the heat sink in the first direction intersecting the substrate.
A first fan mounted on the housing and lined up with the heat sink and expansion card in a second direction intersecting the first direction.
Equipped with electronic equipment. The electronic device according to claim 1, further comprising a guide member having an inner wall that separates the heat sink and the expansion card in the first direction. The electronic device according to claim 2, wherein a gap in the first direction is provided between the inner wall and the expansion card. The expansion card
With the second fan
A casing that accommodates the second fan and is provided with an intake port facing the gap, an exhaust port facing the outside of the housing, and an air passage from the intake port to the exhaust port.
A card body supported by the casing and facing the air passage, and
The electronic device according to claim 3. The electronic device according to claim 4, wherein the inner wall is positioned so as to overlap the intake port when viewed from the first direction. The electronic device according to any one of claims 2 to 5, wherein the guide member has a support portion that protrudes from the inner wall in the first direction and supports a first end portion of the expansion card. The expansion card has a second end that is opposite to the first end and is detachably connected to the connector.
The electronic device according to claim 6, wherein the guide member extends from the support portion to a side opposite to the second end portion and has a rib capable of contacting the outer wall of the housing. The guide member has a fixing portion fixed to the heat sink and has a fixing portion.
The electronic device according to claim 6 or 7, wherein the support portion is positioned so as to be displaced from the fixed portion at least in the first direction or in a direction opposite to the first direction. The electronic device according to any one of claims 1 to 8, wherein the expansion card is located away from the substrate in the first direction from the third end of the heat sink in the first direction.

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