Electronic equipment

Abstract

Provided is an electronic device that can improve the appearance quality while ensuring cooling performance. [Solution] The electronic device comprises a housing having an air intake on its bottom surface, a fan provided within the housing, and a leg member provided on the bottom surface of the housing, the leg member covering at least a portion of the air intake in a position floating above the opening surface of the air intake.

Description

[Technical field]

[0001] The present invention relates to an electronic device equipped with a fan. [Background technology]

[0002] Electronic devices such as notebook PCs are equipped with heat generating elements such as CPUs. Such electronic devices are configured to have a fan installed in the housing to absorb heat generated by the heat generating elements and dissipate it to the outside (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7104832 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional electronic devices generally have an intake port consisting of multiple slit-shaped openings arranged on the bottom surface of the housing. In this configuration, the intake port is noticeable, for example, when the device is carried or used in an upright position, degrading the appearance quality. Therefore, a configuration has been proposed in which the intake port is formed on the side surface of the housing to make it less noticeable. However, in this case, there is a problem that the amount of air intake by the fan is reduced, and cooling performance is reduced.

[0005] The present invention has been made in consideration of the problems with the conventional technology described above, and has an object to provide an electronic device that can improve the appearance quality while ensuring cooling performance. [Means for solving the problem]

[0006] An electronic device according to one embodiment of the present invention comprises a housing having an air intake on a bottom surface, a fan provided within the housing, and a leg member provided on the bottom surface of the housing, the leg member covering at least a portion of the air intake in a position floating above the opening surface of the air intake. Effect of the Invention

[0007] According to the above aspect of the present invention, it is possible to improve the appearance quality while ensuring the cooling performance. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic plan view of an electronic device according to an embodiment viewed from above. [Diagram 2] FIG. 2 is a plan view illustrating a schematic internal structure of the housing. [Diagram 3] FIG. 3 is a perspective view of the bottom surface of the housing as viewed obliquely from the front. [Figure 4] FIG. 4 is an enlarged view of the leg member and its surrounding area shown in FIG. [Figure 5A] 5A is an enlarged bottom view of the leg member and its surrounding area shown in FIG. [Figure 5B] FIG. 5B is a bottom view in which the leg members shown in FIG. 5A are omitted. [Figure 6] FIG. 6 is a schematic cross-sectional view taken along line VI-VI in FIG. 5A. [Figure 7A] FIG. 7A is an enlarged bottom view of a leg member and its surrounding area according to a modified example. [Figure 7B] FIG. 7B is a schematic cross-sectional view taken along line BB in FIG. 7A. [Figure 8] FIG. 8 is a perspective view showing a configuration example in which an air intake and leg members are provided on a housing having no protruding portion. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of an electronic device according to the present invention will be described in detail with reference to the accompanying drawings.

[0010] 1 is a schematic plan view of an electronic device 10 according to an embodiment, viewed from above. As shown in FIG. 1, the electronic device 10 according to this embodiment is a clamshell-type notebook PC. The electronic device 10 has a cover 11 and a housing 12 connected by a hinge 14 so that they can rotate relative to each other. In this embodiment, the electronic device 10 is a notebook PC, but the electronic device may be other than a notebook PC, such as a tablet PC, a smartphone, or a portable game console.

[0011] The cover 11 is a thin, flat box-shaped housing. The cover 11 is equipped with a display 16. The display 16 is, for example, an organic EL display or a liquid crystal display.

[0012] The housing 12 is a thin, flat box. A keyboard device 18 and a touch pad 19 face the upper surface (surface 12a) of the housing 12. Hereinafter, the housing 12 and each component mounted thereon will be described with reference to the posture of an operator operating the keyboard device 18, with the width direction (left and right) of the housing 12 referred to as the X1 and X2 directions, the depth direction (front and back) of the housing 12 referred to as the Y1 and Y2 directions, and the thickness direction (up and down) of the housing 12 referred to as the Z1 and Z2 directions. The X1 and X2 directions may be collectively referred to as the X direction, and the Y1, Y2 directions and the Z1, Z2 directions may be similarly referred to as the Y direction and the Z direction. These directions are determined for the sake of convenience, and may naturally change depending on the usage state or installation posture of the electronic device 10.

[0013] The housing 12 is composed of a housing member 20 that forms the upper surface and the four peripheral side surfaces, and a cover material 21 that forms the lower surface. The housing member 20 is formed by forming standing walls 20B on the four peripheral edges of a cover plate 20A that forms the surface 12a of the housing 12. Therefore, the housing member 20 has a substantially bathtub shape with an opening on the lower surface. The cover material 21 has a substantially flat plate shape and serves as a lid that closes the opening on the lower surface of the housing member 20. The housing member 20 and the cover material 21 are overlapped in the thickness direction and are detachably connected to each other. The standing walls 20B may be formed on the cover material 21. In this case, the housing member 20 may be composed of only the cover plate 20A. The standing walls 20B may be formed in a frame shape separate from the housing member 20 and the cover material 21.

[0014] The hinge 14 is installed in a concave hinge arrangement groove 12b formed in the rear edge of the housing 12, and connects the housing 12 and the cover 11. The hinge 14 has a structure in which a hinge shaft serving as a rotation axis is supported at both ends of the hinge housing 14a in the longitudinal direction. The hinge 14 of this embodiment is configured in a so-called one-bar shape in which the hinge housing 14a extends along the longitudinal direction of the hinge arrangement groove 12b. The hinge 14 descends diagonally backward while the hinge housing 14b rotates together with the cover 11. The hinge 14 has a structure that increases the rotation angle of the cover 11 in this way, that is, a so-called drop-down structure. The structure of the hinge 14 may be other than the above.

[0015] Fig. 2 is a plan view that shows a schematic internal structure of the housing 12. Fig. 2 shows the inside of the housing member 20 from the bottom side with the cover material 21 removed.

[0016] 2, a cooling module 24, a motherboard 25, and a battery device 26 are housed inside the housing 12. Inside the housing 12, various electronic components, mechanical components, and the like are also provided.

[0017] The motherboard (substrate) 25 is a circuit board that serves as a main board of the electronic device 10. The motherboard 25 is disposed toward the Y2 side of the housing 12, and extends in the X direction. The battery device 26 is a rechargeable battery that serves as a power source for the electronic device 10. The battery device 26 is disposed toward the Y1 side of the motherboard 25, and extends in the X direction.

[0018] The motherboard 25 of this embodiment is equipped with a CPU (Central Processing Unit) 25a. In addition to the CPU 25a, the motherboard 25 can also be equipped with various electronic components such as a GPU (Graphics Processing Unit), a memory, a communication module, and the like.

[0019] For example, an upper surface (first surface 25A) of the motherboard 25 serves as a mounting surface for the housing member 20, and a lower surface (second surface 25B) serves as a mounting surface for the CPU 25a and the like.

[0020] Next, a configuration example of the cooling module 24 will be described.

[0021] The CPU 25a is a heat generating element that generates the largest amount of heat among the electronic components mounted in the housing 12. The cooling module 24 can absorb and diffuse the heat generated by the CPU 25a and discharge it to the outside of the housing 12. The cooling module 24 may be configured to cool a heat generating element other than the CPU 25a, such as a GPU.

[0022] As shown in FIG. 2, the cooling module 24 of the present embodiment includes a heat diffusion member 28 and a pair of fans 30, 30.

[0023] The heat diffusion member 28 absorbs and diffuses heat from the CPU 25a. The heat diffusion member 28 includes a metal plate 28a and a heat pipe 28b.

[0024] The metal plate 28a is a thin plate made of a metal with high thermal conductivity, such as copper or aluminum. In this embodiment, the metal plate 28a is a copper plate. The metal plate 28a extends in the X direction between the left and right fans 30. The metal plate 28a covers a part (part 25C) of the motherboard 25 arranged between the left and right fans 30 and the CPU 25a mounted on the part 25C from the second surface 25B side (Z2 side). The metal plate 28a is connected to the surface of the CPU 25a. For example, thermally conductive grease and a copper block of approximately the same size as the outer shape of the CPU 25a are interposed between the metal plate 28a and the CPU 25a. Leaf springs 32 are attached to the edges 28a1 and 28a2 of the metal plate 28a along the X direction. The leaf springs 32 are components that press the metal plate 28a against the CPU 25a.

[0025] The heat pipe 28b is a pipe-type heat transport device. The heat pipe 28b is configured by crushing a metal pipe thin and flat to form an elliptical cross section, and sealing a working fluid in the sealed space inside. Examples of the working fluid include water, alternative fluorocarbons, acetone, butane, etc. The heat pipes 28b can be used in pairs, for example. The heat pipes 28b are fixed to the back side of the connection surface of the metal plate 28a to the CPU 25a. Each heat pipe 28b overlaps the CPU 25a in the Z direction near the center in the longitudinal direction. This allows the heat pipes 28b to quickly diffuse the heat of the CPU 25a transferred to the metal plate 28a with higher efficiency than the metal plate 28a.

[0026] The pair of fans 30, 30 are arranged side by side in the X direction so as to straddle the heat diffusion member 28 between them, and face each other. Each fan 30 has an outlet 34 on the side surface 30a facing each other. That is, the outlets 34 of the left and right fans 30 face each other with the heat diffusion member 28 between them. This allows each fan 30 to discharge air toward the heat diffusion member 28. Each fan 30 has an intake port 35 on at least the end surface 30c on the Z2 side among the upper and lower end surfaces 30b, 30c facing the Z direction. The intake port 35 can also be provided on the end surface 30b on the Z1 side. The end surfaces 30b, 30c are perpendicular to the side surface 30a and perpendicular to the axial direction of the rotation shaft of the impeller 30d.

[0027] The fan 30 is a centrifugal fan that rotates an impeller 30d housed inside a housing by a motor (see FIG. 6). This allows the fan 30 to suck in air from an inlet 35 and expel it from an outlet 34.

[0028] Next, an intake and exhaust structure for introducing air into the housing 12 by the fan 30 and discharging the air discharged from the fan 30 to the outside of the housing 12 will be described.

[0029] Fig. 3 is a perspective view of the bottom surface 12c of the housing 12 as viewed obliquely from the front. Fig. 4 is an enlarged view of the leg member 56 and its surroundings shown in Fig. 3. Fig. 5A is an enlarged bottom view of the leg member 56 and its surroundings shown in Fig. 4. Fig. 5B is a bottom view in which the leg member 56 shown in Fig. 5A is omitted. In Fig. 5B, the outline of the leg member 56 is shown by a two-dot chain line. Fig. 6 is a schematic cross-sectional view taken along line VI-VI in Fig. 5A.

[0030] 2 to 6, the exhaust structure of the electronic device 10 can include an exhaust port 40 formed in the standing wall 20B at the rear edge (Y2 side edge) of the housing 12. The exhaust port 40 is an opening for discharging air (hot air) that is discharged from the outlet 34 of the fan 30 and flows along the upper and lower surfaces 25A, 25B of the motherboard 25 to the outside of the housing 12. This air cools the motherboard 25, the CPU 25a, the heat diffusion member 28, etc. along the way and becomes hot.

[0031] In this embodiment, the Y2-side standing wall 20B has a hinge arrangement groove 12b extending along its longitudinal direction and recessed toward the Y1 side. The exhaust port 40 is provided near the longitudinal center of the front wall (hereinafter referred to as "standing wall 42") of the hinge arrangement groove 12b of the Y2-side standing wall 20B. The exhaust port 40 can be composed of a plurality of small windows arranged closely in the X direction, for example. The exhaust port 40 is located between the fans 30, 30 when the arrangement direction (X direction) of the left and right fans 30, 30 is used as a reference.

[0032] Each fan 30 may have an outlet port, for example, on the side surface 30e on the Y2 side. In this case, the housing 12 may have an additional exhaust port formed in the vertical wall 42 facing the outlet port.

[0033] Next, the air intake structure of the electronic device 10 can include air intake ports 50, 52 formed in a protruding portion 48 provided on the bottom surface 12c of the housing 12.

[0034] The protrusion 48 protrudes in the Z2 direction from the bottom surface 12c. The protrusion 48 has a rectangular cylindrical shape that is long in the X direction and flat in the Z direction. The X direction length of the protrusion 48 covers substantially the entire X direction width of the housing 12. The protrusion 48 is provided at a position closer to the Y2 side in the front-rear direction (Y direction) of the bottom surface 12c. The protrusion 48 has a pair of side walls 48a, 48b extending along its longitudinal direction (X direction). The Y2 side wall 48b is located immediately in front of the standing wall 42. In a plan view of the housing 12, the protrusion 48 is disposed at a vertically overlapping position with the left and right fans 30, 30 (see FIGS. 2, 6, and 7B).

[0035] The protruding portion 48 protrudes in the Z2 direction from a part of the covering material 21. Therefore, the bottom surface 48c of the protruding portion 48 is located at a position offset toward the Z2 side from the bottom surface 12c formed by the surface of the covering material 21. In other words, it can be said that the bottom surface 48c of the protruding portion 48 forms a part of the bottom surface 12c of the housing 12 together with the surface of the covering material 21. The protruding portion 48 has an inner surface 48e, which is the bottom of its inner space 48d, offset in the Z2 direction from the inner surface 21a of the covering material 21 (see FIG. 6).

[0036] As shown in Fig. 6, the end surface 30c on which the suction port 35 of each fan 30 is formed faces the inner space 48d of the protruding portion 48. The inner space 48d is a groove-shaped space that is deeper on the Z2 side from the inner surface 21a of the cover material 21 by the height of the protruding portion 48. The inner space 48d expands the internal space of the housing 12 in the Z direction. The end surface 30c on which the suction port 35 is formed is disposed at the upper part of the inner space 48d. This allows the fan 30 to smoothly draw air outside the housing 12 into the suction port 35 through the air intakes 50, 52.

[0037] The protruding portion 48 is formed in a square tube shape. The protruding portion 48 has small ends (opening ends 48f) at both longitudinal ends closed by cap members 54. The cap member 54 can have a wall portion 54a standing in the Z direction and a fitting piece 54b protruding in the X direction from the Z1 side end of the wall portion 54a (see FIG. 6). The cap member 54 is fastened to the housing 12 with, for example, a predetermined screw, with most of the wall portion 54a and the fitting piece 54b being fitted into the opening end 48f.

[0038] As shown in FIG. 3, input / output ports 55 can be provided on the walls 54a of the left and right cap members 54. Examples of the input / output ports 55 include those conforming to the HDMI (registered trademark) standard and those conforming to the USB 3.0 communication standard. This allows the electronic device 10 to have a tapered surface on the side and to install the input / output ports 55 that require a certain level of height. The protruding portions 48 also function as rear legs that raise the rear portion of the housing 12 placed on a placement surface such as the top surface of a desk higher than the front portion. This allows the electronic device 10 to have a keyboard device 18 in a tilted position with the front lowered when in use, improving operability.

[0039] As shown in Figs. 2 to 6, the air intake 50 is formed in the bottom surface 48c of the protruding portion 48. A pair of left and right air intakes 50 are provided to correspond to the left and right fans 30, 30, respectively. The left and right air intakes 50 are formed near the left and right ends of the protruding portion 48, respectively. As a result, the left and right air intakes 50 are arranged to straddle the pair of fans 30, 30 between them. The air intake 50 can have, for example, an elongated band-like slit shape that is long in the Y direction and narrow in the X direction.

[0040] The intake port 50 is partially covered with a leg member 56. The leg member 56 is a leg portion when the electronic device 10 is placed on a placement surface, and is also called, for example, a rubber leg. The leg member 56 of this embodiment can suppress the intake port 50 from being conspicuous in appearance and improve the appearance quality of the bottom surface 12c (48c). The leg member 56 is fixed to the bottom surface 48c of the protruding portion 48. A pair of leg members 56 are provided on the left and right so as to correspond to the left and right intake ports 50, 50. Note that, for example, a bar-shaped rubber leg 58 extending in the left and right direction is provided on the Y1 side end of the bottom surface 12c of the housing 12 (see FIG. 3).

[0041] The leg member 56 covers the air intake port 50 at a position floating on the Z2 side from the opening surface (bottom surface 48c) of the air intake port 50. The leg member 56 can have a leg body 56a and an overhanging portion 56b. The leg body 56a is fixed to the bottom surface 48c at the side of the air intake port 50 and stands up in the Z2 direction from the bottom surface 48c. The overhanging portion 56b is formed such that the side portion on the protruding tip side of the leg body 56a protrudes towards the air intake port 50 (X direction), and has an overhanging shape that covers the air intake port 50.

[0042] The leg member 56 may have, for example, a long and slender bar shape formed long in the Y direction and narrow in the X direction. The leg member 56 may have an outer shape slightly larger than the air intake 50 (see Figs. 5A and 5B). The leg body 56a is disposed along the opening edge 50a located on the opposite side (outside) from the fan 30 side, of the pair of opening edges 50a, 50b of the air intake 50 extending in the Y direction, and is fixed to the bottom surface 48c. Both ends of the leg body 56a in the Y direction are fixed to the bottom surface 48c at positions straddling the air intake 50 in the Y direction.

[0043] The left and right leg members 56 can be installed in a symmetrical structure with respect to the left and right air intakes 50. In FIG. 3, the leg member 56 on the X2 side is installed so that its leg body 56a straddles the air intake 50 in the Y direction on the X2 side (outside) of the X2 side air intake 50. The eaves portion 56b of this leg member 56 extends from the leg body 56a to the X1 side to cover most of the air intake 50. In FIG. 3, the leg member 56 on the X1 side is installed so that its leg body 56a straddles the air intake 50 in the Y direction on the X1 side (outside) of the X1 side air intake 50. The eaves portion 56b of this leg member 56 extends from the leg body 56a to the X2 side to cover most of the air intake 50.

[0044] In this way, leg member 56 can be configured in a shape similar to that of a telephone receiver, for example. Leg body 56a has a notch formed on the side surface facing adjacent air intake port 50 to form visor portion 56b.

[0045] As shown in FIG. 6, inside the housing 12, a wall portion 54a is provided that stands up vertically along the opening edge portion 50a of the intake port 50 on the leg member 56 side. When viewed from the end face of the opening edge portion 50a, the wall portion 54a has a wall surface 54a1 that extends vertically at a position slightly offset on the opposite side to the opening edge portion 50b side. The wall surface 54a1 may be disposed substantially flush with the end face of the opening edge portion 50b. As shown in FIG. 8, the protruding portion 48 may be omitted. In this case, the wall portion 54a (wall surface 54a1) may be formed not on the cap member 54 but on, for example, the standing wall 20B.

[0046] The leg member 56 can be composed of, for example, a resin base material 60 and a rubber surface material 61 that covers the surface of the base material 60. The base material 60 is a portion that is fixed to the bottom surface 48c and ensures the rigidity of the leg member 56. The base material 60 is fixed to the bottom surface 48c with an adhesive member 62 such as a double-sided adhesive tape or an adhesive. The eaves portion 56b is formed by cutting out parts of the base material 60 and the surface material 61. The eaves portion 56b can also be configured by cutting out only the surface material 61. Reference numeral 64 in FIG. 5B denotes a positioning hole. The positioning holes 64 are provided in a pair, for example, straddling the intake port 50 in the Y direction, and a positioning pin protruding from the bottom surface of the leg member 56 (base material 60) is fitted into the positioning holes.

[0047] 4 and 6, overhanging portion 56b covers air intake 50 at a position spaced a height H from the opening surface of air intake 50. If height H is too small, the amount of air intake at air intake 50 is excessively restricted, and if height H is too large, air intake 50 becomes conspicuous on bottom surface 48c. Thus, height H can be set to, for example, about 0.5 mm to 1.2 mm in a typical notebook PC having a display 16 size of about 12 to 16 inches.

[0048] It is preferable that the leg member 56 covers more than half of the width dimension W of the intake port 50 in a plan view of the bottom surface 48c. If the width that the eaves portion 56b covers the intake port 50 is too small, the intake volume increases, but the intake port 50 becomes largely exposed and conspicuous on the bottom surface 48c. For example, in the above-mentioned general notebook PC, the intake port 50 can have a width dimension W in the X direction, which is the short side, of about 0.7 mm to 1.5 mm, and a length dimension L in the Y direction, which is the long side, of about 15 mm to 35 mm. Therefore, by covering more than half of the width dimension W of such intake port 50, the eaves portion 56b can effectively prevent the intake port 50 from being exposed to the outside while ensuring a sufficient intake volume.

[0049] In the leg member 56 of the configuration example shown in Fig. 5, it is preferable that the eaves portion 56b does not cover the entire width dimension W of the intake port 50. This is because if the eaves portion 56b completely covers the intake port 50, the distance from the opening edge portion 50b to the tip of the eaves portion 56b becomes too small, and there is a concern that the amount of air taken in by the intake port 50 will be excessively reduced.

[0050] As shown in Fig. 3, the air intake 52 is provided in the side wall 48a on the Y1 side of the protruding portion 48. The air intake 52 is composed of, for example, a number of small windows arranged closely in the X direction. A pair of air intakes 52 are provided on the left and right sides, and are located on the Y1 sides of the left and right fans 30, 30 in the X direction. As shown in Fig. 5A, the air intake 52 can also be provided in the side wall 48b on the Y2 side. The air intake 52 can also be omitted.

[0051] Next, a description will be given of the cooling action of the cooling module 24. The dashed and dotted arrows shown in Figures 2 to 4 and 6 are schematic diagrams of air flow, and the same is true in Figure 7B.

[0052] In the electronic device 10, heat generated by a heat generating body such as the CPU 25a is transferred to the heat diffusion member 28 and efficiently diffused. The fans 30 on both sides of the heat diffusion member 28 draw outside air (cold air) through the intake port 50 into the suction port 35 and expel it from the exhaust port 34. Each fan 30 can also draw outside air (cold air) through the intake port 52. The heat diffusion member 28 is not limited to a configuration including the metal plate 28a and the heat pipe 28b, as long as it can diffuse heat from a heat generating body such as the CPU 25a.

[0053] The air discharged from the outlets 34 of the left and right fans 30 flows along the surface of the heat diffusion member 28 to cool the heat diffusion member 28, and at the same time directly cools the CPU 25a, the motherboard 25, etc. The cooled air (warm air) is exhausted to the outside of the housing 12 through the exhaust port 40 that opens in the center of the vertical wall 42.

[0054] Thus, electronic device 10 equipped with intake port 50 and leg member 56 can ensure a sufficient amount of air intake at intake port 50, while covering intake port 50 with leg member 56, improving the appearance quality.

[0055] Fig. 7A is an enlarged bottom view of a leg member 56A and its surroundings according to a modified example. Fig. 7B is a schematic cross-sectional view taken along line BB in Fig. 7A. In Fig. 7A, only the outline of leg member 56A is shown by a two-dot chain line.

[0056] The above-mentioned leg member 56 is disposed on the side of the intake port 50, and the eaves portion 56b covers part of the intake port 50. On the other hand, the leg member 56A shown in Figures 7A and 7B is provided so as to cover the entire intake port 50A, which has a larger opening area than the intake port 50.

[0057] The leg body 56a of the leg member 56A is fixed to the bottom surface 48c at a position straddling the intake port 50A in the Y direction. The eaves portion 56b of the leg member 56A is disposed at a position floating on the Z2 side from the bottom surface 48c (opening surface) so as to straddle the intake port 50A in the X direction. This allows the leg member 56A to be installed straddling the intake port 50A in a bridge-like manner. Therefore, most of the intake port 50A at the Z1 side of the leg member 56A becomes an opening surface. This allows the intake port 50A to have a larger width dimension in the X direction than the intake port 50 described above. In other words, the electronic device 10 equipped with the intake port 50A and the leg member 56A can further increase the amount of air taken in at the intake port 50A while covering the intake port 50A with the leg member 56A to improve the appearance quality.

[0058] 8, the protrusion 48 may be omitted. In this case, the air intake 50 (50A) and the leg member 56 (56A) may be provided in the bottom surface 12c of the cover material 21.

[0059] As described above, electronic device 10 of the present embodiment includes housing 12 having air intake 50 (50A) on bottom surface 48b (12c), fan 30 provided inside housing 12, and leg member 56 (56A) provided on bottom surface 48b (12c) of housing 12. Leg member 56 (56A) covers at least a portion of air intake 50 (50A) at a position above the opening surface of air intake 50 (50A).

[0060] In this way, the electronic device 10 is configured to have the intake port 50 (50A) on the bottom surface 48b (12c), so that the intake port 50 (50A) can be arranged near the fan 30, and the intake volume of the fan 30 can be improved. At this time, the intake port 50 (50A) is not noticeable on the outside because it is covered with the leg member 56 (56A). This improves the appearance quality of the electronic device 10. Moreover, the leg member 56 (56A) covers the intake port 50 (50A) at a position floating from the opening surface. Therefore, the electronic device 10 prevents the intake volume of the intake port 50 (50A) from decreasing due to the leg member 56 (56A). As a result, the electronic device 10 can ensure a sufficient intake volume of the fan 30 while improving the appearance quality, and can ensure the cooling performance of the cooling module 24.

[0061] The leg member 56 is fixed to the bottom surface 48c at the side of the air intake 50 and can have a leg body 56a standing from the bottom surface 48c, and a eaves portion 56b provided to protrude from the leg body 56a toward the air intake 50 and cover the air intake 50. This allows the leg member 56 to reliably fix the leg body 56a to the bottom surface 48c while hiding the air intake 50 with the eaves portion 56b. As shown in Fig. 6, such a leg member 56 can also exhibit a rectifying effect, allowing the air (outside air) taken inside the eaves portion 56b to flow smoothly along the leg body 56a to the air intake 50.

[0062] The air intake 50 (50A) is located between the fan 30 and the leg member 56 (56A) based on the X direction (first direction) extending along the bottom surface 48c (12c) of the housing 12. Therefore, the fan 30 can more smoothly suck in air (outside air) from the air intake 50 (50A) located on the side of the leg member 56 (56A). Specifically, in the configuration example shown in FIG. 6, the air introduced into the air intake 50 can be smoothly rectified by the leg member 56 to make a U-turn toward the fan 30, thereby improving the amount of air intake by the fan 30. In the configuration example shown in FIGS. 7A and 7B, the air introduced into the air intake 50 from the left and right sides of the leg member 56 can be smoothly circulated toward the fan 30, thereby improving the amount of air intake by the fan 30.

[0063] The intake port 50 (50A) may have a slit shape extending along the Y direction (second direction) perpendicular to the X direction and along the bottom surface 48c (12c) of the housing 12. The leg member 56 (56A) may have a bar shape extending along the Y direction. In this way, the leg member 56 (56A) functioning as a rubber leg when placing the electronic device 10 on a placement surface can be disposed near both the left and right ends in the width direction (X direction) of the housing 12. This improves the stability of the leg member 56 (56A) as a leg with respect to the placement surface. In addition, since the leg member 56 (56A) and the intake port 50 (50A) are long in the Y direction, a necessary and sufficient opening area can be secured. Of course, the longitudinal direction of the intake port 50 (50A) and the leg member 56 (56A) may be provided along the X direction instead of the Y direction.

[0064] The electronic device 10 can have a wall portion 54a that stands up vertically along one of the opening edge portions 50a located on the leg member 56 (56A) side of a pair of opening edges 50a, 50b of the air intake 50 (50A) extending in the longitudinal direction of the electronic device 10. In this way, the electronic device 10 can make the air introduced into the air intake 50 (50A) from the inner surface side (fan 30 side) of the leg member 56 (56A) make a U-turn toward the fan 30 more smoothly by the wall portion 54a. This further improves the amount of air intake from the air intake 50 (50A) of the fan 30.

[0065] The housing 12 can have a protruding portion 48 that is provided to protrude from the bottom surface 12c and extends along the width direction. In this case, the air intake 50 can be formed on the bottom surface 48c of the protruding portion 48, and the leg member 56 can be fixed to the bottom surface 48c of the protruding portion 48. In this case, the electronic device 10 can smoothly circulate the air introduced from the air intake 50 along the inner space 48d of the protruding portion 48. In particular, when the air intake 50 is disposed between the fan 30 and the leg member 56, the air introduced from the air intake 50 can be more smoothly circulated to the fan 30 using the inner space 48d as a flow path. In this case, it is preferable that the fan 30 has an intake port 35 on a surface (end surface 30c) facing the inner space 48d of the protruding portion 48. In this case, the air flowing through the inner space 48d from the air intake 50 can be more efficiently sucked in by the intake port 35.

[0066] As shown in FIG. 2, a space (duct structure 66) for smoothing the flow of air from the fan 30 may be formed inside the housing 12. The duct structure 66 is a space surrounded by an airtight wall 66a. The airtight wall 66a is, for example, a member formed in a strip shape of sponge or rubber. The airtight wall 66a does not need to be able to completely block the passage of air, but needs to have a certain degree of ventilation resistance and be able to regulate the direction of air flow. The airtight wall 66a stands, for example, between the first surface 25A of the motherboard 25 and the lower surface of the keyboard device 18, and between the second surface 25B and the inner surface 21a of the cover material 21.

[0067] As a result, air from the outlet 34 of the fan 30 flows through the duct structure 66 and is smoothly discharged to the exhaust port 40 and the intake port 50. As a result, the electronic device 10 can prevent the warm air that has cooled the heat diffusion member 28 and the heat generating element (CPU 25a) from flowing back into the intake port 35 of the fan 30 inside the housing 12, further improving the cooling efficiency.

[0068] It should be noted that the present invention is not limited to the above-described embodiment, and can of course be freely modified without departing from the spirit and scope of the present invention. [Explanation of symbols]

[0069] 10 Electronic equipment 11 Lid 12. Cabinet 16 Display 18 Keyboard Device 24 Cooling Module 25 Motherboard 25a CPU 28 Heat diffusion material 30 Fans 34 Discharge port 35 Intake port 40 Exhaust port 48 Protrusion 50,50A,52 Air Intake 54a wall 56,56A Leg member 56a script font 56b Eaves

Claims

1. An electronic device, A housing having an air intake on a bottom surface; A fan provided within the housing; A leg member provided on a bottom surface of the housing; Equipped with the leg member covers at least a portion of the air intake port at a position above an opening surface of the air intake port, The leg member is A block-shaped leg body is fixed to the bottom surface at a side portion of the air intake port and stands up from the bottom surface; A visor portion is formed on a side surface of the block-shaped leg body so as to protrude from the leg body toward the air intake port and cover the air intake port; have 1. An electronic device comprising:

2. 2. The electronic device according to claim 1, The air intake is located between the fan and the leg member with respect to a first direction extending along a bottom surface of the housing.

1. An electronic device comprising:

3. 3. The electronic device according to claim 2, the intake port has a slit shape extending along a second direction perpendicular to the first direction and along a bottom surface of the housing, The leg member has a bar shape extending along the second direction.

1. An electronic device comprising:

4. An electronic device, A housing having an air intake on a bottom surface; A fan provided within the housing; A leg member provided on a bottom surface of the housing; Equipped with the leg member covers at least a portion of the air intake port at a position above an opening surface of the air intake port, the intake port is located between the fan and the leg member with respect to a first direction extending along a bottom surface of the housing; the intake port has a slit shape extending along a second direction perpendicular to the first direction and along a bottom surface of the housing, The leg member has a bar shape extending along the second direction, Within the housing, a wall portion is provided that stands up vertically along one of a pair of opening edge portions of the intake port that extends along the second direction and that is located on the leg member side.

1. An electronic device comprising:

5. The electronic device according to any one of claims 1 to 4, the housing has a protrusion that protrudes from the bottom surface and extends along a width direction thereof, The air intake is formed on a bottom surface of the protrusion, The leg member is fixed to the bottom surface of the protrusion.

1. An electronic device comprising:

6. An electronic device, A housing having an air intake on a bottom surface; A fan provided within the housing; A leg member provided on a bottom surface of the housing; Equipped with the leg member covers at least a portion of the air intake port at a position above an opening surface of the air intake port, the housing has a protrusion that protrudes from the bottom surface and extends along a width direction thereof, The air intake is formed on a bottom surface of the protrusion, The leg member is fixed to the bottom surface of the protrusion.

1. An electronic device comprising:

7. 7. The electronic device according to claim 6, The fan has an intake port on a surface facing the inner space of the protrusion.

1. An electronic device comprising:

8. 2. The electronic device according to claim 1, The leg member covers half or more of the width of the air intake port in a plan view of the bottom surface.

1. An electronic device comprising:

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