Cover and system comprising cover

Abstract

This system comprises an electronic device 10 and a cover 50. The electronic device has: a front surface 11 that is equipped with a display 15; an operation part 30 that projects from the front surface toward the front, which is the direction of the front surface side of the electronic device; a rear surface 12 that is provided on the reverse side from the front surface; a first magnetic body 41 that is provided to an edge part on the front surface side; and a second magnetic body 42 that is provided to an edge part on the reverse surface side. The rear surface has a shape that bulges to the rear, which is the direction of the rear surface side of the electronic device. The cover has a third magnetic body 61 that is attracted to the first magnetic body and the second magnetic body, such that the third magnetic body can be detachably attached to the front surface of the electronic device by the attraction to the first magnetic body, and the third magnetic body can be detachably attached to the rear surface of the electronic device by the attraction to the second magnetic body. The cover has an outer surface 51 that is exposed when the cover is mounted to the front surface of the electronic device or when the cover is mounted to the rear surface of the electronic device, and an inner surface 52 that faces the front surface when the cover is mounted to the front surface of the electronic device, and faces the rear surface when the cover is mounted to the rear surface of the electronic device. The inner surface has a shape that bulges in the outer surface direction, which is the direction of the outer surface side of the cover.

Description

Cover and system including cover

[0001] The present disclosure relates to a cover and a system including the cover.

[0002] Covers for portable electronic devices have been known for some time (for example, see Patent Document 1). The cover described in Patent Document 1 has a front cover and a rear cover connected to each other via a connector. When the cover is closed with the electronic device housed inside, the front cover covers the front surface of the electronic device, and the rear cover covers the rear surface of the electronic device. On the other hand, when the cover is opened while attached to the electronic device, the rear cover is positioned to cover the rear surface of the electronic device, while the front cover is separated from the front surface of the electronic device and is floating.

[0003] Japanese Patent Application Laid-Open No. 2021-012652

[0004] Covers used for electronic devices are required to be easy to use. Therefore, an object of the present disclosure is to provide an easy-to-use cover for an electronic device, or a system including an easy-to-use cover and an electronic device.

[0005] The gist of the present disclosure is as follows.

[0006] (1) A system comprising an electronic device and a cover, wherein the electronic device has: a front surface having a display; an operation unit protruding forward from the front surface toward the front side of the electronic device; a rear surface provided on the opposite side to the front surface; a first magnetic body provided on an edge of the front surface; and a second magnetic body provided on an edge of the rear surface; the rear surface has a shape that bulges backward toward the rear side of the electronic device; the cover has a third magnetic body that is attracted to the first magnetic body and the second magnetic body, and is configured so that the third magnetic body is attracted to the first magnetic body, thereby making it possible to attach and detach the cover to the front surface of the electronic device, and so that the third magnetic body is attracted to the second magnetic body, thereby making it possible to attach and detach the cover to the rear surface of the electronic device; and further has an outer surface that is exposed when attached to the front surface of the electronic device and when attached to the rear surface of the electronic device, and an inner surface that faces the front surface when attached to the front surface of the electronic device and faces the rear surface when attached to the rear surface of the electronic device, (2) The system according to (1), wherein the inner surface has a shape that bulges outward in a direction that is the direction of the outer surface of the cover. (3) The system according to (2), wherein the outer surface of the cover has a shape that bulges outward along the shape of the inner surface. (4) The system according to (3), wherein the operation unit protrudes forward on both sides of the display, and the outer surface and the inner surface of the cover, when attached to the front, have shapes in which specific regions located on both sides of the display facing region bulge outward compared to a region facing the display. (5) The system according to (3) or (4), wherein the inner surface and the outer surface of the cover bulge outward overall, and the specific region bulges outward further compared to other regions of the inner surface and the outer surface.(6) The system described in (1) or (2) above, wherein the rear surface of the electronic device has a shape that bulges rearward over its entirety, and the inner surface of the cover has a shape that bulges outward over its entirety. (7) The system described in any one of (1) to (6) above, wherein the first magnetic body is arranged along each of opposing sides of the front surface, the second magnetic body is arranged along each of opposing sides of the rear surface, and the third magnetic body is arranged along each of opposing sides of the cover. (8) The system described in (7) above, wherein a plurality of the first magnetic bodies are arranged along each of opposing sides of the front surface, a plurality of the second magnetic bodies are arranged along each of opposing sides of the rear surface, and a plurality of the third magnetic bodies are arranged along each of opposing sides of the cover, and the first magnetic body, the second magnetic body, and the third magnetic body are all magnets, and adjacent magnetic bodies among the plurality of magnetic bodies arranged along each side have opposite polarities. (9) The system described in (8) above, wherein an odd number of the first magnetic bodies are arranged along each of the opposing sides of the front surface, an odd number of the second magnetic bodies are arranged along each of the opposing sides of the rear surface, and an odd number of the third magnetic bodies are arranged along each of the opposing sides of the cover. (10) The system described in claim 9, wherein a middle magnetic body among the odd number of magnetic bodies arranged along each side is located at the center of the side. (11) The system described in (9) or (10) above, wherein, among the odd number of magnetic bodies arranged along each side, the pair of magnetic bodies arranged on both sides of the middle magnetic body are located equally spaced from each other from the middle magnetic body. (12) The system described in any one of (8) to (11) above, wherein the distance between adjacent magnetic bodies among the magnetic bodies including the first magnetic body, the second magnetic body, and the third magnetic body is shorter than the length of the magnetic body along the corresponding side. (13) A system described in any one of (7) to (12) above, wherein the plurality of first magnetic bodies are arranged point-symmetrically with respect to the center of the front surface, the plurality of second magnetic bodies are arranged point-symmetrically with respect to the center of the rear surface, and the plurality of third magnetic bodies are arranged point-symmetrically with respect to the center of the cover.(14) The system described in any one of (1) to (13) above, wherein the electronic device further has a side surface between the front surface and the rear surface that connects the front surface and the rear surface, a housing that defines the front surface, the rear surface, and the side surface, and a fan provided inside the housing, wherein the housing defines the rear surface and has a rear wall that bulges rearward, the fan is disposed in an area formed within the housing by the bulging rear wall, and a ventilation opening is provided in the side surface, and the ventilation opening is disposed in a position that at least partially overlaps with the ventilation port of the fan when the electronic device is viewed from the side on which the ventilation opening is provided. (15) A cover that can be attached to an electronic device having a front surface with a display and a rear surface on the opposite side of the front surface, the cover being configured to be attachable and detachable to the front surface of the electronic device and the rear surface of the electronic device, and having an outer surface that is exposed when attached to the front surface of the electronic device and when attached to the rear surface of the electronic device, an inner surface that faces the front surface and the rear surface when attached to the front surface of the electronic device and has a shape that bulges outward in the direction of the outer surface of the cover, and a third magnetic material that is attracted to a first magnetic material provided on an edge on the front side of the electronic device and a second magnetic material provided on an edge on the rear side of the electronic device.

[0007] According to the present disclosure, a user-friendly cover for an electronic device or a system including a user-friendly cover and an electronic device is provided.

[0008] FIG. 1 is a schematic perspective view of an equipment cover system. FIG. 2 is a schematic perspective view of an equipment cover system. FIG. 3 is a front view, a top view, a bottom view, and a left side view of an electronic device. FIG. 4 is a perspective view of the electronic device as seen from the left rear. FIG. 5 is a plan view of the electronic device. FIG. 6 is an enlarged cross-sectional view of the electronic device taken along line VI-VI in FIGS. 4 and 5. FIG. 7 is a cross-sectional view of the electronic device taken along line VII-VII in FIG. 5. FIG. 8 is a perspective view of the inner surface of the cover. FIG. 9 is a plan view of the cover. FIG. 10 is an enlarged cross-sectional view of the cover taken along plane X-X in FIGS. 8 and 9. FIG. 11 is a cross-sectional view of the electronic device and the cover when the cover is attached to the front surface of the electronic device. FIG. 12 is a cross-sectional view of the electronic device and the cover when the cover is attached to the rear surface of the electronic device. FIG. 13 is a plan view of the electronic device similar to FIG. 5. FIG. 14 is a plan view of the cover similar to FIG. 9. FIG. 15 is a perspective view of the inner surface of a cover according to a second embodiment similar to FIG. 8. 16 is a cross-sectional view of the cover according to the second embodiment taken along plane XIII-XIII in FIG. 15.

[0009] Hereinafter, the embodiments will be described in detail with reference to the drawings. In the following description, like components are designated by like reference numerals.

[0010] First Embodiment <Device Cover System> The overall configuration of a device cover system 1 according to a first embodiment will be described with reference to Figures 1 and 2. The device cover system 1 includes an electronic device 10 and a cover 50. The electronic device 10 includes a display 15 and has a generally rectangular parallelepiped shape with rounded corners. In particular, in this embodiment, the electronic device 10 is a portable device that can be held in the user's hand. The electronic device 10 is, for example, a portable game console, a tablet, or the like.

[0011] 1 and 2 are perspective views that schematically show an instrument cover system 1. In Fig. 1, the front surface of an electronic device 10 is visible, while in Fig. 2, the rear surface of the electronic device 10 is visible. As shown in Fig. 1 and 2, the electronic device 10 has a substantially rectangular parallelepiped shape and is provided with a display 15 on one surface thereof.

[0012] In this specification, the direction in which the display 15 is provided in the electronic device 10 is referred to as the front, and the direction opposite to the direction in which the display 15 is provided is referred to as the rear. Furthermore, when a user holds the electronic device 10 and uses it while looking at the display 15, the upward, downward, left, and right directions as viewed from the front are referred to as the upward, downward, left, and right directions of the electronic device 10, respectively.

[0013] 1 and 2 , electronic device 10 has a front surface 11 equipped with a display 15, a rear surface 12 provided on the opposite side of the front surface, and side surfaces 13 formed between front surface 11 and rear surface 12 so as to connect front surface 11 and rear surface 12. Side surfaces 13 include a top surface 13a provided above electronic device 10, a bottom surface 13b provided below electronic device 10, a left surface 13c provided on the left side of electronic device 10, and a right surface 13d provided on the right side of electronic device 10. From another perspective, the direction toward front surface 11 of electronic device 10 can be referred to as the front, and the direction toward rear surface 12 of electronic device 10 can be referred to as the rear.

[0014] The cover 50 is configured to be detachable from the front surface 11 of the electronic device 10. Therefore, the cover 50 can be attached to the front surface 11 of the electronic device 10 so as to cover the front surface 11 by moving the cover 50 from the state shown in Fig. 1 in the direction indicated by the arrow in the figure. By attaching the cover 50 to the front surface 11 of the electronic device 10 in this manner, the display 15 and other components provided on the front surface 11 of the electronic device 10 can be protected.

[0015] Similarly, the cover 50 is configured to be detachable from the rear surface 12 of the electronic device 10. Therefore, the cover 50 can be attached to the rear surface 12 of the electronic device 10 so as to cover the rear surface 12 by moving the cover 50 from the state shown in FIG. 2 in the direction indicated by the arrow in the figure. By attaching the cover 50 to the rear surface 12 of the electronic device 10 in this manner, the cover 50 can be held integrally with the electronic device 10 while the user is using the electronic device 10, thereby preventing the cover 50 from being lost. Furthermore, the material and shape of the cover 50 allow the user to comfortably hold the electronic device 10 and the cover 50.

[0016] <Electronic Device> Next, the configuration of the electronic device 10 will be described with reference to Figures 3 to 7. Figure 3 is a front view, a top view, a bottom view, and a left side view of the electronic device 10. As shown in Figure 3, the electronic device 10 has a housing 20, a display 15, a plurality of operation units 30, and magnets 41 and 42.

[0017] The housing 20 accommodates the circuit boards and electronic components that make up the electronic device 10. The electronic components include a control device (such as a processor) for the electronic device 10 that controls the display and other components, a memory that stores various data used by the control device, a battery (none of which are shown) that supplies power to the display 15 and the control device, and a fan 35 (see FIG. 7 ) that ventilates the housing. The housing 20 has a front wall 21 provided on the front side of the electronic device 10, a rear wall 22 provided on the rear side of the electronic device 10, and side walls 23 provided between the front wall 21 and the rear wall 22. The side walls 23 include an upper wall 23a provided above the electronic device 10, a lower wall 23b provided below the electronic device 10, a left wall 23c provided on the left side of the electronic device 10, and a right wall 23d provided on the right side of the electronic device 10.

[0018] In this embodiment, the front surface of the front wall 21 defines the front surface 11 of the electronic device 10, and the rear surface of the rear wall 22 defines the rear surface 12 of the electronic device 10. In addition, in this embodiment, the upper surface of the top wall 23a, the lower surface of the bottom wall 23b, the left surface of the left wall 23c, and the right surface of the right wall define the top surface 13a, the bottom surface 13b, the left surface 13c, and the right surface 13d of the electronic device 10, respectively. Therefore, the housing 20 defines the front surface 11, the rear surface 12, and the side surface 13 of the electronic device 10. In this embodiment, the front wall 21 and the side wall 23 are integrally formed, and the housing 20 is formed by attaching a separate rear wall 22 to the side wall 23. In another embodiment, the housing 20 may be formed by integrally forming the front wall 21 and a portion of the side wall 23, integrally forming the rear wall 22 and a remaining portion of the side wall 23, and connecting the portion of the side wall 23 integrated with the front wall 21 and the portion of the side wall 23 integrated with the rear wall 22.

[0019] The front surface 11 of the electronic device 10 is formed to be substantially flat over its entirety. When viewed from the front, the front surface 11 of the electronic device 10 has a rectangular shape with rounded corners, with the top and bottom sides constituting long sides and the left and right sides constituting short sides. A display 15 is provided in the center of the rectangular front surface 11. In this embodiment, the front surface 11 is also provided with an operation unit 30, which will be described later.

[0020] On the other hand, the rear surface 12 of the electronic device 10, like the front surface 11, has a rectangular shape with rounded corners when viewed from the rear, with the top and bottom sides forming long sides and the left and right sides forming short sides. Furthermore, as can be seen from the bottom view and left side view of FIG. 3 , the rear surface 12 has a shape that bulges outward toward the rear (i.e., toward the rear surface 12 side of the electronic device 10). In this embodiment, the rear surface 12 has a shape in which the curvature is large near its periphery and decreases from the periphery toward the center. In particular, in this embodiment, the rear surface 12 has a shape in which the curvature is relatively large in regions within a certain distance from the long and short sides and relatively small or zero in regions further away from the long and short sides. In this embodiment, the rear wall 22 also has a shape that bulges outward toward the rear in accordance with the bulging shape of the rear surface 12.

[0021] The side surfaces 13 of the electronic device 10 extend substantially perpendicular to the front surface 11 between the edges of the front surface 11 and the edges of the rear surface 12. The top surface 13a extends between the upper long sides of the front surface 11 and the rear surface 12, and the bottom surface 13b extends between the lower long sides of the front surface 11 and the rear surface 12. The left surface 13c extends between the left short sides of the front surface 11 and the rear surface 12, and the right surface 13d extends between the right short sides of the front surface 11 and the rear surface 12. In this embodiment, the top surface 13a curves toward the left surface 13c and the right surface 13d to match the shapes of the rounded corners of the front surface 11 and the rear surface 12. Similarly, the bottom surface 13b curves toward the left surface 13c and the right surface 13d to match the shapes of the rounded corners of the front surface 11 and the rear surface 12.

[0022] 3 , the top surface 13a is provided with an exhaust opening 16 for discharging air from inside the electronic device 10 to the outside. The exhaust opening 16 is located at the center of the top surface 13a in the left-right direction. The exhaust opening 16 is formed in the top wall 23a so as to penetrate the top wall 23a and connect the inside of the electronic device 10 to the outside. In this embodiment, multiple exhaust openings 16 are provided in the top surface 13a, but exhaust openings of other shapes, such as a single large exhaust opening, may also be provided.

[0023] As can be seen from the bottom view of FIG. 3 , the lower surface 13b is provided with an intake opening 17 for drawing external air into the electronic device 10. In this embodiment, a single intake opening 17 extending laterally is provided in the center of the lower surface 13b in the left-right direction. In this embodiment, the intake opening 17 is located on the rear side in the front-to-rear direction, particularly adjacent to the rear surface. Specifically, in this embodiment, a notch 24 extending laterally is provided in the rear side of the lower wall 23b in the center of the right-to-left direction. This notch 24 extends forward from the rear end of the lower wall 23b. Therefore, when the rear wall 22 is attached to the side wall 23, the rear of the notch 24 is closed by the rear wall 22, and as a result, the intake opening 17 is defined by the notch 24 and the rear wall 22. In another embodiment, an intake opening may be provided that penetrates the lower wall 23b between the exterior space and the interior space of the housing 20 (i.e., an intake opening that is defined only by the lower wall 23b).

[0024] Note that, instead of the intake opening 17, an exhaust opening for discharging air inside the electronic device 10 to the outside may be provided at the position of the intake opening 17. Similarly, instead of the exhaust opening 16, an intake opening for taking in outside air into the electronic device 10 may be provided at the position of the exhaust opening 16. Therefore, it can be said that ventilation openings for ventilating between the inside of the electronic device 10 (inside the housing 20) and the outside are provided at the positions of the exhaust opening 16 and the intake opening 17. Furthermore, the ventilation openings may be provided on the side surface 13 or the rear surface 12 other than the top surface 13 a and the bottom surface 13 b.

[0025] Additionally, in this embodiment, an operation unit 30, which will be described later, is disposed on the side surface 13. Furthermore, various other elements may be provided on the side surface 13. For example, the side surface 13 may be provided with a connection terminal such as a headphone microphone terminal or a USB terminal, a slot for inserting a storage medium (such as a memory card) that stores game programs and data, an opening for a speaker built into the electronic device 10, and the like.

[0026] The display 15 is connected to a control device disposed within the housing 20 and displays images (still images and video) in response to signals from the control device. The display 15 is placed on the front surface of a recess recessed toward the rear of the front wall 21 of the housing 20 and constitutes part of the front surface 11 of the electronic device 10. The display 15 has a substantially flat surface. The display 15 is, for example, a liquid crystal display, an electroluminescence (EL) display, or a plasma display. The display 15 may have a touch panel on its surface that functions as an input device. The display 15 may also be appropriately attached to the electronic device 10 so that its display surface is exposed through a hole provided in the front wall 21.

[0027] The operation unit 30 is operated by a user and functions as an input device that provides input to the electronic device 10. The operation unit 30 is connected to a control device in the electronic device 10 and inputs signals associated with user operations to the control device. The operation unit 30 includes, for example, buttons, switches, levers, joysticks, etc. The buttons can have various shapes, such as circular, rectangular, oval, or cross-shaped.

[0028] As shown in Fig. 3 , in this embodiment, the electronic device 10 is provided with a plurality of operation units 30. In the example shown in Fig. 3 , a plurality of first operation units 31 are provided on the front surface 11 to the left of the display 15, and a plurality of second operation units 32 are provided on the right of the display 15. Therefore, the operation units 30 are provided on both the left and right sides of the display 15 on the front surface 11. These first operation units 31 and second operation units 32 are arranged to protrude forward from the front surface 11. Furthermore, the first operation units 31 and second operation units 32 are arranged at approximately equal distances from the center of the front surface 11 in the left-right direction.

[0029] 3, a plurality of third operation units 33 are provided on the top surface 13a located to the left of the display 15, particularly on the curved portion toward the left surface 13c. Additionally, a plurality of fourth operation units 34 are provided on the top surface 13a located to the right of the display 15, particularly on the curved portion toward the right surface 13d. Thus, operation units 30 are provided on both the left and right sides of the display 15 on the side surface 13. In another embodiment, the third operation unit 33 and the fourth operation unit 34 may be provided only on a flat region of the top surface 13a that is inside the curved portion.

[0030] Next, the magnets 41, 42 provided in the electronic device 10 will be described with reference to Figures 4 to 6. Figure 4 is a perspective view of the electronic device 10 as seen from the left rear. Figure 5 is a plan view of the electronic device 10. Figure 6 is an enlarged cross-sectional view of the electronic device 10 as seen along line VI-VI in Figures 4 and 5. The dashed lines in Figures 4 and 5 indicate the magnets 41, 42.

[0031] The magnets 41 and 42 of the electronic device 10 are used to attach the cover 50 to the electronic device 10. That is, a magnet 61 (described later) of the cover 50 is attracted to the magnets 41 and 42 of the electronic device 10, thereby attaching the cover 50 to the electronic device 10. In this embodiment, as shown in FIGS. 4 and 6 , the electronic device 10 has a first magnet 41 provided on an edge portion (a region including the edge on the front surface 11 side of the electronic device 10 and its periphery) on the front surface 11 side (more forward than the center in the front-to-rear direction) of the electronic device 10, and a second magnet 42 provided on an edge portion (a region including the edge on the rear surface 12 side of the electronic device 10 and its periphery) on the rear surface 12 side of the electronic device 10 (more rearward than the center in the front-to-rear direction).

[0032] As shown in FIG. 5 , multiple first magnets 41 are arranged along the left short side of the front surface 11, and multiple first magnets 41 are arranged along the right short side of the front surface 11. Therefore, the first magnets 41 are arranged along each of the opposing short sides of the front surface 11. These first magnets 41 are arranged outside the operation unit 30 provided on the front surface 11. In particular, in this embodiment, three first magnets 41 are arranged along each short side. Note that an odd number other than three first magnets 41 may be arranged along the corresponding short side. Furthermore, the second magnets 42 are arranged in a positional relationship (left-right spacing and up-down spacing) similar to that of the first magnets 41.

[0033] A plurality of second magnets 42 are arranged along the left short side of the rear surface 12, and a plurality of second magnets 42 are arranged along the right short side of the rear surface 12. Therefore, the second magnets 42 are arranged along each of the opposing short sides of the rear surface 12. In particular, in this embodiment, three second magnets 42 are arranged along each short side. Note that an odd number of second magnets 42 other than three may be arranged along the corresponding short side.

[0034] In this embodiment, as shown in Fig. 6 , the first magnet 41 is attached to the inside of the front wall 21 that defines the front surface 11. The first magnet 41 is attached so as to extend in the left-right direction parallel to the front surface 11. In particular, in this embodiment, a first recess 24 is formed on the inner surface of the front wall 21 close to and along the side wall 23, and the first magnet 41 is fixed in this first recess 24. The first magnet 41 may be attached to the inside of the side wall 23 in the vicinity of the front wall 21, or may be attached to a corner defined by the inner surfaces of the front wall 21 and the side wall 23.

[0035] Similarly, in this embodiment, the second magnet 42 is attached to the inner side of the rear wall 22 that defines the rear surface 12. The second magnet 42 is attached so as to extend at an angle with respect to the left-right direction along the curved rear surface 12. In particular, in this embodiment, a second recess 25 is formed on the inner surface of the rear wall 22 close to and along the side wall 23, and the second magnet 42 is fixed in this second recess 25. The first magnet 41 may be attached to the inner side of the side wall 23 near the front wall 21, or may be attached to a corner defined by the inner surfaces of the front wall 21 and the side wall 23. The specific arrangement of the first magnet 41 and the second magnet 42 will be described later.

[0036] Note that elements other than the display 15 and the operation unit 30 may be provided on the front surface 11 or the rear surface 12 of the electronic device 10. Specifically, for example, a camera (not shown) may be provided on the front surface 11 or the rear surface 12, or on both the front surface 11 and the rear surface 12.

[0037] Next, the fan 35 provided within the housing 20 will be described with reference to Fig. 7. Fig. 7 is a cross-sectional view of the electronic device 10 taken along line VII-VII in Fig. 5. Note that, for ease of understanding, Fig. 7 only depicts the fan 35 as an electronic component provided within the housing 20. However, as described above, the housing 20 also contains other electronic components such as a processor and memory, as well as circuit boards and the like.

[0038] The fan 35 ventilates the housing 20. The fan 35 draws external air into the housing 20 through an intake opening 17 formed in the bottom surface 13b of the electronic device 10. The fan 35 also exhausts the air inside the housing 20 to the outside through an exhaust opening 16 formed in the top surface 13a. As a result, the electronic components inside the housing 20 are cooled.

[0039] 7, the fan 35 is provided inside the housing 20 on the rear surface 12 side. In particular, in this embodiment, the fan 35 is provided adjacent to the rear wall 22 that defines the rear surface 12. Furthermore, in this embodiment, the fan 35 is disposed at a certain distance in the up-down direction from both the upper wall 23a and the lower wall 23b. Therefore, in this embodiment, the fan 35 is disposed in an area within the rear wall 22 that is formed by the rear wall 22 having a shape that bulges out toward the rear.

[0040] The fan 35 has an intake port 36 for taking in air and an exhaust port 37 for exhausting air. In this embodiment, the intake port 36 is disposed below the fan 35, and the exhaust port 37 is disposed above the fan 35. Therefore, the intake port 36 is disposed to face the intake opening 17. Additionally, in this embodiment, when viewed in the up-down direction (particularly when viewed from the side of the lower surface 13b on which the intake opening 17 is provided), the intake port 36 of the fan 35 is disposed so as to partially overlap the intake opening 17. Note that the intake port 36 of the fan 35 may be configured to entirely overlap the intake opening 17.

[0041] In this embodiment, the air intake port 36 is disposed so as to face the air intake opening 17. However, the air exhaust port 37 may be disposed so as to face the air intake opening (vent opening) 17. Even in this case, the fan 35 is disposed so that the air exhaust port 37 of the fan 35 at least partially overlaps with the air ventilation opening 17 when viewed from the side where the air ventilation opening 17 is provided. In other words, the air ventilation opening 17 is disposed at a position that at least partially overlaps with the air ventilation opening of the fan 35.

[0042] <Cover> Next, the configuration of the cover 50 will be described with reference to Figures 1, 2, and 8 to 10. Figure 8 is a perspective view of the inner surface of the cover 50, Figure 9 is a plan view of the cover 50, and Figure 10 is an enlarged cross-sectional view of the cover 50 taken along plane X-X in Figures 8 and 9. Note that in Figures 8 and 9, the cover 50 has a sheet that covers the entire cover 50. For this reason, the magnet 61 does not appear on the surface of the cover 50 in Figures 8 and 9, and is therefore indicated by a dashed line. On the other hand, Figure 10 shows the cover without the sheet, and therefore the magnet 61 is exposed to the outside.

[0043] The cover 50 is a plate-shaped member having an outer surface 51, an inner surface 52 opposite the outer surface 51, and a side surface 53 formed between the outer surface 51 and the inner surface 52 so as to connect the outer surface 51 and the inner surface 52. As can be seen from FIGS. 1 and 2 , the outer surface 51 is exposed to the outside when the cover 50 is attached to the front surface 11 or the rear surface 12 of the electronic device 10. On the other hand, the inner surface 52 faces the front surface 11 or the rear surface 12 when the cover 50 is attached to the front surface 11 or the rear surface 12 of the electronic device 10. In this specification, the direction toward the outer surface 51 of the cover 50 is referred to as the outer surface direction, and the direction toward the inner surface 52 of the cover 50 is referred to as the inner surface direction.

[0044] When viewed from the outer and inner sides, the cover 50 has a rectangular shape with rounded corners, similar to the electronic device 10. Therefore, the outer surface 51 and the inner surface 52 of the cover 50 also have a rectangular shape with rounded corners. Furthermore, as can be seen from FIG. 8 , the cover 50 has a shape that bulges outwardly throughout its entirety. Therefore, in this embodiment, both the outer surface 51 and the inner surface 52 have a shape that bulges outwardly throughout their entirety. In particular, in this embodiment, the bulging shapes of the outer surface 51 and the inner surface 52 are similar to the bulging shape of the rear surface 12 of the electronic device 10. Furthermore, in this embodiment, the outer surface 51 and the inner surface 52 have a shape in which the curvature is large near the periphery and decreases from the periphery toward the center. In particular, in this embodiment, the outer surface 51 and the inner surface 52 have a shape in which the curvature is relatively large in regions within a certain distance from the long and short sides and is relatively small or zero in regions away from the long and short sides by a certain distance or more. In this embodiment, the inner surface 52 has a shape complementary to the bulging shape of the rear surface 12 of the electronic device 10 .

[0045] In this embodiment, the outer surface 51 of the cover 50 has a shape that bulges outwardly to match the shape of the inner surface 52. However, as long as the inner surface 52 of the cover 50 has a shape that bulges outwardly, the outer surface 51 may have a different shape, such as a flat shape. Therefore, in this embodiment, the cover 50 has a uniform thickness throughout, but may have different thicknesses in different regions.

[0046] The cover 50 also has a third magnet 61 that is used to attach the cover 50 to the electronic device 10. The third magnet 61 is provided on the edge portion of the cover 50 on the inner surface 52 side (a region including the edge of the inner surface 52 and its surroundings).

[0047] A plurality of third magnets 61 are arranged along one short side of the inner surface 52, and a plurality of third magnets 61 are arranged along the other short side of the inner surface 52. Therefore, the third magnets 61 are arranged along each of the opposing short sides of the inner surface 52 of the cover 50. In particular, in this embodiment, three third magnets 61 are arranged along each short side. Note that an odd number of third magnets 61 other than three may be arranged along each short side. Furthermore, the third magnets 61 are arranged in a positional relationship (spacing in the long side direction and spacing in the short side direction) similar to that of the first magnets 41 and the second magnets 42.

[0048] In this embodiment, the third magnet 61 is attached to the cover 50 on the inner surface 52 side. The third magnet 61 is attached along the curved inner surface 52 so as to extend at an angle with respect to a plane defined by the entire edge of the inner surface 52 (i.e., a plane when the cover 50 is placed on a flat surface so that the inner surface 52 is in contact with the plane). In particular, in this embodiment, as shown in FIG. 10 , a third recess 54 is formed in the inner surface 52 of the cover 50 close to and along the side surface 53, and the third magnet 61 is fixed in this third recess 54. Note that the third magnet may also be attached to the cover 50 on the outer surface 51 side. In this case, the third magnet is fixed in a recess provided in the outer surface 51 of the cover 50. Alternatively, the third magnet may be attached to the cover 50 on the side surface 53.

[0049] <Magnet Arrangement> Next, the arrangement of the magnets 41, 42, and 61 will be described with reference to Figures 4 to 9. As described above, in this embodiment, the magnets 41, 42, and 61 are arranged in threes along the corresponding short sides (i.e., the short side of the front surface 11, the short side of the rear surface 12, and the short side of the inner surface 52). Below, the three magnets arranged side by side will be given the reference numerals a, b, and c in order (for example, the first magnet 41 arranged along one side will be referred to as 41a, 41b, and 41c in order. Furthermore, the magnets of the electronic device 10 will be referred to as a, b, and c in order from bottom to top).

[0050] In this embodiment, as shown in Figures 4, 5, 8, and 9, among the odd-numbered magnets 41, 42, and 61 arranged along each short side, the middle magnets 41b, 42b, and 61b are arranged so that they are located at the center of that short side. In addition, the odd-numbered magnets 41, 42, and 61 arranged along each short side are arranged so that adjacent magnets 41, 42, and 61 are positioned at equal intervals from each other. Therefore, in this embodiment, the odd-numbered magnets 41, 42, and 61 arranged along each side are arranged so that pairs of magnets (in the example shown in Figure 4, the pairs of magnets above and below the central magnet 41b, 42b, and 61b) on either side of the central magnet 41b, 42b, and 61b (the magnet located at the center of the short side) are positioned so that they are positioned at equal intervals from the central magnet 41b, 42b, and 61b. In addition, if the number of magnets 41, 42, 61 arranged along each short side is an odd number greater than three, multiple pairs are formed on each side, and all of the multiple pairs are arranged so that they are positioned at equal intervals from the central magnet.

[0051] Additionally, in this embodiment, each magnet 41, 42, or 61 is formed in a rectangular parallelepiped shape. In this embodiment, the first magnet 41, the second magnet 42, and the third magnet 61 all have the same shape. They are arranged so as to extend along the short sides of the front surface 11, the rear surface 12, or the inner surface 52. That is, each magnet 41, 42, or 61 is arranged so that its longest side extends parallel to the short sides of the front surface 11, the rear surface 12, or the inner surface 52. Additionally, the magnets 41, 42, or 61 are arranged so that the distance between adjacent magnets is shorter than the length of each magnet 41, 42, or 61 along the corresponding short side (in this embodiment, the length of the longest side of each magnet 41, 42).

[0052] In addition, in this embodiment, adjacent magnets 41, 42, and 61 arranged along each short side are arranged so that they have different polarities. Specifically, in this embodiment, adjacent magnets are arranged so that the polarities of the front surface 11 of magnet 41, the rear surface 12 of magnet 42, and the inner surface 52 of magnet 61 are different. Therefore, for example, if the front surface 11 side of the middle first magnet 41b is an S pole, the front surfaces 11 sides of the first magnets 41a and 41c located on either side of it are N poles.

[0053] Furthermore, in this embodiment, each of the first magnets 41 has a polarity different from that of the corresponding third magnet 61 when the cover 50 is located in the attached position on the front surface 11 of the electronic device 10. Specifically, the polarity of the front side of the middle first magnet 41b of the first magnets 41 arranged along each side of the cover 50 is different from the polarity of the inner side of the middle magnet 61b of the third magnets 61 arranged along each side of the cover 50. Also, the polarity of the front side of the first magnets 41a and 41c at both ends of the first magnets 41 arranged along each side of the cover 50 is different from the polarity of the inner side of the third magnets 61a and 61c at both ends of the third magnets 61 arranged along each side of the cover 50. Similarly, each of the second magnets 42 has a polarity different from that of the corresponding third magnet 61 when the cover 50 is located in the attached position on the rear surface 12 of the electronic device 10.

[0054] Additionally, in this embodiment, when viewed in the front-to-rear direction (as viewed in the direction of FIG. 5 ), the first magnet 41 is arranged point-symmetrically with respect to the center of the front surface 11, and the second magnet 42 is arranged point-symmetrically with respect to the center of the rear surface 12. Furthermore, when viewed in the inner / outer surface direction (as viewed in the direction of FIG. 9 ), the third magnet 61 is arranged point-symmetrically with respect to the center of the inner surface 52 (i.e., the center of the cover 50). As a result, in this embodiment, even when the electronic device 10 is rotated 180° around the center of the front surface 11 and the rear surface 12, the first magnet 41 and the second magnet 42 remain in the same position. Similarly, even when the cover 50 is rotated 180° around the center of the cover 50, the position of the third magnet 61 remains the same.

[0055] <Attaching the Cover> Next, the state of the cover 50 and the electronic device 10 when the cover 50 is attached to the front surface 11 and the rear surface 12 of the electronic device 10 will be described with reference to FIGS. 11 and 12 .

[0056] 11 is a cross-sectional view of the electronic device 10 and the cover 50 when the cover 50 is attached to the front surface 11 of the electronic device 10. As shown in FIG. 11 , the cover 50 is configured to contact the front surface 11 at the edge of the inner surface 52 when attached to the front surface 11, but not in other areas of the front surface 11. As a result, when the cover 50 is attached to the front surface 11, a space is formed between the front surface 11 and the inner surface 52 of the cover 50. In particular, in this embodiment, the inner surface 52 of the cover 50 is bulged out so that the cover 50 does not interfere with the operation unit 30 or so that the cover 50 does not interfere excessively with the operation unit 30 when attached to the front surface 11.

[0057] In this embodiment, when the cover 50 is attached to the front surface 11, the edge of the inner surface 52 of the cover 50 is in linear contact with the front surface 11, but the cover 50 may be in planar contact with the front surface 11 at the edge (a region including the edge and its periphery) of the inner surface 52. Alternatively, the cover 50 may be in planar contact with the front surface 11 at the edge of the side surface 53 of the cover 50 or at the entire side surface 53 of the cover 50.

[0058] 12 is a cross-sectional view of the electronic device 10 and the cover 50 when the cover 50 is attached to the rear surface 12 of the electronic device 10. As shown in FIG. 12 , the inner surface 52 of the cover 50 extends along the bulging rear surface 12 of the electronic device 10. In addition, in this embodiment, when the cover 50 is attached to the rear surface 12, the edge of the inner surface 52 of the cover 50 contacts the rear surface 12, but other areas do not contact the rear surface 12. However, because the rear surface 12 of the electronic device 10 bulges rearward, the gap between the inner surface 52 of the cover 50 and the rear surface 12 is small even in areas where they do not contact each other.

[0059] In this embodiment, when the cover 50 is attached to the rear surface 12, the edge of the inner surface 52 of the cover 50 is in planar contact with the rear surface 12, but the cover 50 may be in linear contact with the rear surface 12 at the edge of the inner surface 52. Alternatively, the cover 50 may be in linear contact with the rear surface 12 at the edge of the side surface 53 of the cover 50 or in planar contact with the entire side surface 53 of the cover 50.

[0060] <Operations and Effects> In the device cover system 1 configured as described above, when the cover 50 is positioned in the attachment position on the front surface 11 of the electronic device 10, each of the third magnets 61 of the cover 50 has a polarity opposite to that of the opposing first magnets 41. Therefore, the third magnets 61 of the cover 50 are attracted to the first magnets 41 of the electronic device 10, and as a result, the cover 50 is attached to the front surface 11 of the electronic device 10. Similarly, when the cover 50 is positioned in the attachment position on the rear surface 12 of the electronic device 10, each of the third magnets 61 of the cover 50 has a polarity opposite to that of the opposing second magnets 42. Therefore, the third magnets 61 of the cover 50 are attracted to the second magnets 42 of the electronic device 10, and as a result, the cover 50 is attached to the rear surface 12 of the electronic device 10.

[0061] As described above, in this embodiment, the cover 50 can be attached to both the front surface 11 and the rear surface 12 of the electronic device 10. Therefore, when the electronic device 10 is not in use, the cover 50 can be attached to the front surface 11 to protect the display 15 and the operation unit 30 provided on the front surface 11. Furthermore, when the electronic device 10 is in use, the cover 50 can be attached to the rear surface 12, thereby eliminating the need to store the cover 50 separately from the electronic device 10. Therefore, according to this embodiment, a user-friendly device cover system 1 is provided.

[0062] Furthermore, in this embodiment, the inner surface 52 of the cover 50 has a shape that bulges outward. Therefore, in this embodiment, as described above, when the cover 50 is attached to the front surface 11, a space is formed between the front surface 11 and the inner surface of the cover 50. As a result, in this embodiment, when the cover 50 is attached to the front surface 11, it is possible to prevent the cover 50 from interfering with the operating unit 30, or to prevent the cover 50 from interfering excessively with the operating unit 30.

[0063] On the other hand, as shown in the cross-sectional view of FIG. 12 , when the cover 50 is attached to the rear surface 12, the inner surface 52 of the cover 50 extends along the bulging rear surface 12 of the electronic device 10. If the rear surface of the electronic device 10 were flat, a large gap would be formed between the cover 50 and the rear surface when the cover 50 was attached to the rear surface. In contrast, in this embodiment, the rear surface 12 of the electronic device 10 bulges rearward, thereby minimizing this gap. As a result, the volume inside the housing 20 of the electronic device 10 can be increased, improving the ease of mounting components inside the housing 20. For example, in this embodiment, the fan 35 is disposed in an area formed by the bulging rear surface 12 of the electronic device 10, thereby effectively utilizing the space inside the electronic device 10. Therefore, according to this embodiment, the device cover system 1, including the cover 50, can be configured compactly as a whole, providing a user-friendly device cover system 1 in this respect as well. In particular, in this embodiment, the inner surface 52 of the cover 50 bulges outward throughout, and the rear surface 12 of the electronic device 10 bulges backward throughout along this bulge, thereby further improving the ease of mounting components within the housing 20.

[0064] 12 , when the cover 50 is attached to the rear surface 12, the cover 50 contacts the rear surface 12 at the edge of the inner surface 52 of the cover 50, but does not contact the rear surface 12 in other areas. If the bulging shape of the inner surface 52 of the cover 50 were made exactly the same as the bulging shape of the rear surface 12, manufacturing errors in the cover 50 or slight deformation that occurs with use could cause uneven contact locations when the cover 50 is attached to the rear surface 12, potentially resulting in rattles in the cover 50. In contrast, in this embodiment, the cover 50 contacts the rear surface 12 only at the edge of the inner surface 52, which reduces rattles caused by manufacturing errors or slight deformations.

[0065] Furthermore, in this embodiment, the outer surface 51 of the cover 50 also has a shape that bulges outward. Therefore, when the cover 50 is not attached to the rear surface 12 of the electronic device 10, the rear surface 12 bulges backward, and even when the cover 50 is attached to the rear surface 12 of the electronic device 10, the outer surface 51 of the cover 50 attached to the rear surface 12 bulges backward. Therefore, when a user holds the electronic device 10, they are less likely to feel uncomfortable whether or not the cover 50 is attached. In particular, in this embodiment, the bulging shape of the outer surface 51 of the cover 50 has a shape similar to the bulging shape of the rear surface 12 of the electronic device 10, so they are less likely to feel uncomfortable.

[0066] In this embodiment, the magnets 41, 42, and 61 are arranged along the short sides of the front surface 11, the rear surface 12, and the inner surface 52, respectively. By arranging the magnets 41, 42, and 61 along the short sides in this manner, when the cover 50 is attached to the electronic device 10, the magnets are fixed at positions spaced apart from each other, so that the cover 50 can be stably fixed to the electronic device 10.

[0067] Additionally, in this embodiment, the magnets 41, 42, and 61 are arranged in multiple numbers along the corresponding edges, and adjacent magnets have different polarities. Because adjacent magnets have different polarities, when the cover 50 is misaligned and placed on the electronic device 10, the third magnet 61 of the cover 50 and the opposing first magnet 41 or second magnet 42 of the electronic device 10 have the same polarity and therefore repel each other. As a result, the cover 50 can be guided to the correct attachment position. In particular, in this embodiment, the magnets 41, 42, and 61 are arranged in odd numbers along the corresponding edges. Therefore, even if the cover 50 is misaligned upward or downward relative to the electronic device 10, the cover 50 can be guided to the correct attachment position.

[0068] Furthermore, in this embodiment, the distance between adjacent magnets 41, 42, and 61 is shorter than the length of the magnets along the corresponding side. As a result, even if the cover 50 is placed on the electronic device 10 slightly off-center, a large repulsive force acts, guiding the cover 50 to the correct attachment position. In addition, in this embodiment, the middle magnet of the odd number of magnets 41, 42, and 61 arranged along each side is located at the center of each side, and the magnets on either side are equally spaced from the middle magnet. Furthermore, in this embodiment, the first magnet 41, the second magnet 42, and the third magnet 61 are each arranged point-symmetrically. By arranging the magnets 41, 42, and 61 in this manner, the cover 50 can be attached to the electronic device 10 even if the left and right sides of the cover 50 are reversed (i.e., the cover 50 is rotated 180°) from a certain attachment position. This improves usability when attaching the cover 50 to the electronic device 10.

[0069] <Modifications> In the above embodiment, the magnets 41, 42, and 61 are arranged in odd numbers along the corresponding sides. However, as shown in FIGS. 13 and 14 , the magnets 41, 42, and 61 may be arranged in even numbers along each side. FIG. 13 is a plan view similar to FIG. 5 of the electronic device 10 in which two first magnets 41 are arranged along each side. In the plan view of FIG. 13 , the second magnet 42 is arranged in the same position as the first magnet 41 (behind the first magnet 41). FIG. 14 is a plan view similar to FIG. 9 of the cover 50 in which two third magnets 61 are arranged along each side.

[0070] 13 and 14, the two magnets 41, 42, 61 arranged along each side are arranged on either side of the center of the short side so that they are equidistant from the center of the short side. Also, if there is an even number of magnets arranged along each side, four or more, the magnets in each pair arranged along each side are arranged on either side of the center of the short side so that they are equidistant from the center of the short side. In this case, too, adjacent magnets are arranged so that they have opposite polarities.

[0071] In addition, although the magnets 41, 42, and 61 are arranged in multiple numbers along the corresponding sides in the above embodiments, only one magnet may be arranged along each side. Furthermore, although the magnets 41, 42, and 61 are arranged along the short sides of the front surface 11, rear surface 12, and inner surface 52 in the above embodiments, they may be arranged along the long sides. In addition, although the magnets 41, 42, and 61 are arranged along the short sides of the front surface 11, rear surface 12, and inner surface 52, i.e., along the outer peripheries of the front surface 11, rear surface 12, and inner surface 52 in the above embodiments, they may be arranged in relatively inner regions.

[0072] Furthermore, in the above embodiment, the distance between adjacent magnets 41, 42, and 61 is shorter than the length of the magnets along the corresponding side. However, the distance between adjacent magnets may be longer than the length of the magnets along the corresponding side. Furthermore, in the above embodiment, the magnets 41, 42, and 61 arranged along each short side are arranged so that the middle magnet is located at the center of that short side. However, the middle magnet may not be located at the center of the short side, but may be located offset to one of the long sides. In this case, the magnets 41, 42, and 61 may be arranged point-symmetrically as described above. If the magnets are arranged point-symmetrically, the arrangement of the magnets 41, 42, and 61 will remain the same even if the electronic device 10 or the cover 50 is rotated 180 degrees.

[0073] In the above embodiment, the first magnet 41, the second magnet 42, and the third magnet 61 are all magnets (hard magnetic materials), but some of these may be soft magnetic materials. However, the first magnetic material, the second magnetic material, and the third magnetic material corresponding to the first magnet 41, the second magnet 42, and the third magnet 61, respectively, must be configured so that the third magnetic material is attracted to the first magnetic material or the second magnetic material. Therefore, when the first magnetic material and the second magnetic material are soft magnetic materials, the third magnetic material is a hard magnetic material, and when the third magnetic material is a soft magnetic material, the first magnetic material and the second magnetic material are hard magnetic materials. In other embodiments, some or all of the magnetic materials may be electromagnets.

[0074] The electronic device 10 may also have a Hall sensor (not shown) that detects the magnetic field formed by the third magnet 61. The Hall sensor can detect whether the cover 50 is attached to the front surface 11 or the rear surface 12 of the electronic device 10 based on the detected magnetic field. The Hall sensor is connected to a control device of the electronic device 10, and the control device may control electronic components of the electronic device 10, including the display 15, based on the attachment state of the cover 50 to the front surface 11 or the rear surface 12.

[0075] Specifically, for example, the control device may wake up the sleep state of the electronic device 10 when it detects that the cover 50 has been removed from the front surface 11 of the electronic device 10. Alternatively, the control device may wake up the sleep state of the electronic device 10 when it detects that the cover 50 is not attached to the front surface 11 of the electronic device 10 but that the cover 50 is attached to the rear surface 12 of the electronic device 10. Furthermore, the control device may put the electronic device 10 into the sleep state when it detects that the cover 50 has been attached to the front surface 11 of the electronic device 10. Alternatively, the control device may put the electronic device 10 into the sleep state when it detects that the cover 50 is attached to the front surface 11 of the electronic device 10 but that the cover 50 is not attached to the rear surface 12 of the electronic device 10.

[0076] Additionally, in the case where a camera is provided on the rear surface 12 of the electronic device 10, a control device connected to the camera may activate the camera when it is not detected that the cover 50 is attached to the front surface 11 of the electronic device 10 and when it is detected that the cover 50 has been removed from the rear surface 12. The control device may also stop operation of the camera when it is detected that the cover 50 has been attached to the rear surface 12 while the camera is operating. Alternatively, the control device may stop operation of the camera when it is detected that the cover 50 has been attached to the front surface 11 while the camera is operating.

[0077] In the above embodiment, two sets of magnets are provided, that is, a set of first magnets 41 is provided on the front surface 11 side of the electronic device 10 and a set of second magnets 42 is provided on the rear surface 12 side. However, only one set of magnets may be provided between the front surface 11 and the rear surface 12. In this case, the third magnet 61 provided on the cover 50 is attracted to the same magnet on the electronic device 10 whether the cover 50 is attached to the front surface 11 side or the rear surface 12 side of the electronic device 10.

[0078] Furthermore, in the above embodiment, the fan 35 is disposed in a region within the rear wall 22 that is formed by the rear wall 22 having a shape that bulges out toward the rear. However, other components may be disposed in this region in addition to or instead of the fan 35.

[0079] Furthermore, in the above embodiment, the cover 50 is configured to contact the front surface 11 or the rear surface 12 of the electronic device 10 at the edge or marginal portion of the inner surface 52 when attached to the electronic device 10. However, the cover 50 may be configured to contact the front surface 11 or the rear surface 12 of the electronic device 10 at the edge or marginal portion, as well as at the inner surface 52 other than the edge or marginal portion.

[0080] Furthermore, in the above embodiment, the cover 50 has a shape that bulges outwardly throughout its entirety. However, the cover 50 may have a shape that includes a ring-shaped portion that extends inwardly from its edge (see FIGS. 8 and 10 ) in addition to a portion having such a shape. In the case of the cover 50 configured in this manner, when the cover 50 is attached to the electronic device 10, the ring-shaped portion is positioned on the side surface 13 of the electronic device 10.

[0081] Second Embodiment Next, an equipment cover system 1 according to a second embodiment will be described with reference to Figures 15 and 16. The configuration of the equipment cover system 1 according to the second embodiment is basically the same as the configuration of the equipment cover system 1 according to the first embodiment. The following description will focus on the differences from the configuration of the equipment cover system 1 according to the first embodiment.

[0082] Fig. 15 is a perspective view similar to Fig. 8 of the inner surface side of the cover 50 according to the second embodiment, and Fig. 16 is a cross-sectional view of the cover 50 according to the second embodiment taken along plane XVI-XVI in Fig. 15.

[0083] As shown in FIGS. 15 and 16 , the cover 50, like the cover of the first embodiment, has a shape that bulges outward throughout its entirety. Additionally, the cover 50 has a specific region 55 that bulges outward compared to the region facing the display 15 when the cover 50 is attached to the front of the electronic device 10 (region 56 indicated by a dashed line in FIG. 15 , hereinafter referred to as the "facing region"). Therefore, the outer surface 51 and the inner surface 52 of the cover 50 have the specific region 55 that bulges outward compared to the facing region 56. In particular, in this embodiment, the outer surface 51 and the inner surface 52 have a shape in the specific region 55 that bulges outward further than the region other than the specific region 55. Furthermore, in this embodiment, the specific region 55 is located on both sides of the facing region 56. Furthermore, each specific region 55 extends in the direction of the short side of the cover 50. In other words, when the cover 50 is attached to the front of the electronic device 10, each specific area 55 extends in the vertical direction, i.e., in a direction perpendicular to the direction in which the specific area 55 is arranged (the long side direction) across the opposing area 56.

[0084] In addition, in this embodiment, the two specific areas 55 are positioned symmetrically with respect to the opposing area 56. Specifically, the two specific areas 55 are positioned symmetrically with respect to the center of the long side of the cover 50. In addition, in this embodiment, the two specific areas 55 are positioned point-symmetrically with respect to the center of the cover 50. In particular, in this embodiment, when the cover 50 is attached to the front surface 11 of the electronic device 10, each specific area 55 is positioned to face the first operation unit 31 and the second operation unit 32 provided on the front surface 11.

[0085] In this embodiment, the specific area 55 is located on both sides of the facing area 56. The first operating unit 31 and the second operating unit 32 are located on both the left and right sides of the display 15. Therefore, the specific area 55, which bulges outward, is positioned above the first operating unit 31 and the second operating unit 32 when the cover 50 is attached to the front surface 11 of the electronic device 10. Therefore, the cover 50 can be attached without interfering at all or excessively with the first operating unit 31 and the second operating unit 32, which protrude forward. Additionally, when the cover 50 is attached to the rear surface 12 of the electronic device 10, the outer surface 51 protrudes rearward in the specific area 55. This allows the user to easily grip the electronic device 10 with the cover 50 attached. In particular, when the cover 50 is attached to the rear surface 12 of the electronic device 10, the specific area 55 extends in the vertical direction, making it easier for a user holding the electronic device 10 from both the left and right sides of the electronic device 10 to grip the electronic device 10.

[0086] In this embodiment, the outer surface 51 and the inner surface 52 of the cover 50 bulge outwardly over the entire surface, and bulge outward further in the specific region 55 than in other regions. Therefore, the cover 50 of this embodiment can improve the ease of mounting components inside the housing 20 and make it easier for the user to grip the electronic device 10.

[0087] In the above embodiment, the cover 50 is formed so as to bulge outward over the entire surface. However, the cover 50 may be formed so as to bulge outward only in the specific region 55.

[0088] Although preferred embodiments according to the present disclosure have been described above, the present disclosure is not limited to these embodiments, and various modifications and changes can be made within the scope of the claims.

[0089] 1 Device cover system 10 Electronic device 11 Front surface 12 Rear surface 13 Side surface 15 Display 41 First magnet 42 Second magnet 50 Cover 51 Outer surface 52 Inner surface 61 Third magnet

Claims

1. A system comprising an electronic device and a cover, wherein the electronic device has a front face provided with a display, an operation part protruding forward from the front face in the front direction of the electronic device on the front face side, a rear face provided on the side opposite to the front face, a first magnetic body provided at an edge portion on the front face side, a second magnetic body provided at an edge portion on the rear face side, and has the rear face has a shape bulging rearward in the rear direction of the electronic device, the cover has a third magnetic body that adsorbs to the first magnetic body and the second magnetic body, the third magnetic body is detachable from the front face of the electronic device by adsorbing to the first magnetic body, and is configured to be detachable from the rear face of the electronic device by adsorbing to the second magnetic body, and an outer surface that is exposed when attached to the front face of the electronic device and when attached to the rear face of the electronic device, and an inner surface that faces the front face when attached to the front face of the electronic device and faces the rear face when attached to the rear face of the electronic device, and further has the inner surface has a shape bulging in the outer surface direction, which is the outer surface side direction of the cover, a system.

2. The outer surface of the cover has a shape bulging in the outer surface direction along the shape of the inner surface, the system according to claim 1.

3. The operation part protrudes forward on both sides with the display interposed therebetween, the outer surface and the inner surface of the cover have a shape bulging in the outer surface direction in a specific region located on each of both sides sandwiching the region facing the display, compared to the region facing the display when attached to the front face, the system according to claim 2.

4. The specific region extends symmetrically with the region facing the display interposed therebetween and in a direction perpendicular to the direction in which the region facing the display is sandwiched, the system according to claim 3.

5. The inner surface and the outer surface of the cover bulge in the outer surface direction throughout, and have a shape bulging further in the outer surface direction in the specific region compared to other regions of the inner surface and the outer surface, the system according to claim 3 or 4.

6. The rear face of the electronic device has a shape bulging rearward throughout, and the inner surface of the cover has a shape bulging in the outer surface direction throughout, the system according to claim 1 or 2.

7. The first magnetic body is arranged along each of the opposing sides of the front surface. The second magnetic body is arranged along each of the opposing sides of the rear surface. The third magnetic body is arranged along each of the opposing sides of the cover. The system according to any one of claims 1 to 6.

8. A plurality of the first magnetic bodies are arranged along each of the opposing sides of the front surface. A plurality of the second magnetic bodies are arranged along each of the opposing sides of the rear surface. A plurality of the third magnetic bodies are arranged along each of the opposing sides of the cover. The first magnetic body, the second magnetic body, and the third magnetic body are all magnets, and among the plurality of magnetic bodies arranged along each side, adjacent magnetic bodies have different polarities. The system according to claim 7.

9. An odd number of the first magnetic bodies are arranged along each of the opposing sides of the front surface. An odd number of the second magnetic bodies are arranged along each of the opposing sides of the rear surface. An odd number of the third magnetic bodies are arranged along each of the opposing sides of the cover. The system according to claim 8.

10. Among the odd number of magnetic bodies arranged along each side, the middle magnetic body is located at the center of the side. The system according to claim 9.

11. Among the odd number of magnetic bodies arranged along each side, the pair of magnetic bodies arranged on both sides of the middle magnetic body are equidistant from the middle magnetic body. The system according to claim 9 or 10.

12. The distance between adjacent magnetic bodies among the magnetic bodies including the first magnetic body, the second magnetic body, and the third magnetic body is shorter than the length of the magnetic body along the corresponding side. The system according to any one of claims 8 to 11.

13. A plurality of the first magnetic bodies are arranged point-symmetrically with respect to the center of the front surface, a plurality of the second magnetic bodies are arranged point-symmetrically with respect to the center of the rear surface, and a plurality of the third magnetic bodies are arranged point-symmetrically with respect to the center of the cover. The system according to any one of claims 7 to 12.

14. The electronic device further includes a side surface provided between the front surface and the rear surface to connect the front surface and the rear surface, a housing that defines the front surface, the rear surface, and the side surface, and a fan provided inside the housing. The housing has a rear wall that defines the rear surface and bulges rearward. The fan is disposed in a region formed in the housing due to the bulging of the rear wall. The side surface is provided with a ventilation opening, and the ventilation opening is disposed at a position that at least partially overlaps with the ventilation port of the fan when the electronic device is viewed from the side surface where the ventilation opening is provided. The system according to any one of claims 1 to 13. **Claim 15** A cover attachable to an electronic device having a front surface including a display and an operation unit protruding forward, and a rear surface provided on the opposite side of the front surface and having a shape bulging rearward. It is detachable from the front surface of the electronic device and is configured to be detachable from the rear surface of the electronic device, and An outer surface that is exposed when attached to the front surface of the electronic device and when attached to the rear surface of the electronic device, An inner surface that faces the front surface and the rear surface when attached to the front surface and the rear surface of the electronic device and has a shape bulging in the outer surface direction, which is the direction of the outer surface side in the cover. A cover having a first magnetic body provided at an edge portion on the front surface side of the electronic device and a third magnetic body that adsorbs to a second magnetic body provided at an edge portion on the rear surface side of the electronic device.