Electronic device

Abstract

To effectively utilize the space within a flat box-shaped housing to appropriately arrange various components, including a high-frequency shield.SOLUTION: An electronic device 1 comprises: a flat box-shaped housing 10; and an antenna 60, a battery 70 and a circuit board 30 that are provided inside the housing 10. The antenna 60, battery 70 and circuit board 30 are arranged sequentially in this order in the depth direction (Y-axis direction) of the housing 10 from the front side (+Y side) to the rear side (-Y side). The circuit board 30 is provided with a high-frequency generating component 40 that generates a high frequency, and a high-frequency shield 50 disposed between the high-frequency generating component 40 and the battery 70.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to an electronic device. [Background technology]

[0002] As an example of electronic equipment, a portable notebook personal computer includes a base unit, a hinge, and a display unit. The base unit houses, for example, a board, a CPU, a ROM, a RAM, a storage such as an HDD or SSD, a battery, an antenna, and various other components (for example, see Patent Document 1 below). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7273353 Summary of the Invention [Problem to be solved by the invention]

[0004] However, since the board is equipped with multiple electronic components that generate high frequencies, such as a CPU, it is necessary to install a high-frequency shield inside the housing of the base to protect the antenna from the effects of these high frequencies. However, installing a high-frequency shield reduces the space inside the housing, which can have an adverse effect, such as requiring the battery capacity to be reduced accordingly.

[0005] The present invention has been made in consideration of the above problems, and has an object to effectively utilize the space within a flat box-shaped housing to appropriately arrange various components including a high-frequency shield. [Means for solving the problem]

[0006] In order to solve the above problems, an electronic device of one embodiment of the present invention comprises a flat box-shaped housing, and an antenna, a battery, and a circuit board provided inside the housing, the antenna, the battery, and the circuit board being arranged in this order from the front to the back in the depth direction of the housing, and the circuit board is provided with a high-frequency generating component that generates high frequencies, and a high-frequency shielding arranged between the high-frequency generating component and the battery.

[0007] In addition, in the above electronic device, the high-frequency generating components may be provided in multiple numbers on the substrate, and the high-frequency shield may extend in a width direction intersecting the depth direction and face the multiple high-frequency generating components in the depth direction.

[0008] In addition, in the above electronic device, the housing may include an upper cover and a bottom cover, and the bottom cover may include a first bottom cover arranged at the back side in the depth direction and fixed to the upper cover, and a second bottom cover arranged at the front side in the depth direction and separable from the upper cover and the first bottom cover.

[0009] In the electronic device, the substrate may include a ground pad on a surface facing the first bottom cover, and the first bottom cover may be in contact with the ground pad and electrically grounded.

[0010] In the above electronic device, the upper cover and the first bottom cover may be fixed via a bolt, a through hole through which the bolt passes may be formed in the substrate, and the ground pad may be arranged around the through hole.

[0011] In the electronic device, an insulating washer may be provided on an inner side of the first bottom cover to prevent the bolt from falling off when the bolt is removed from the upper cover. Effect of the Invention

[0012] According to one aspect of the present invention, the space within a flat box-shaped housing can be effectively utilized to appropriately arrange various components including a high-frequency shield. [Brief description of the drawings]

[0013] [Figure 1] 1 is a bottom perspective view of an electronic device according to an embodiment of the present invention; [Diagram 2] 4A and 4B are a bottom view and an exploded view of the bottom cover in the embodiment of the present invention; [Diagram 3] FIG. 2 is a bottom view of the housing with the bottom cover removed in one embodiment of the present invention. [Figure 4] FIG. 4 is a cross-sectional view taken along the line IV-IV shown in FIG. [Diagram 5] FIG. 4 is an enlarged view of an area A shown in FIG. [Figure 6] 6 is a cross-sectional view taken along the line VI-VI shown in FIG. 5. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0015] FIG. 1 is a bottom perspective view of an electronic device 1 according to an embodiment of the present invention. The electronic device 1 includes a housing 10 and a cover 20. The electronic device 1 is a clamshell type laptop personal computer (a so-called notebook type personal computer).

[0016] In the following description, an XYZ orthogonal coordinate system is set, and the positional relationship of each member may be described with reference to this XYZ orthogonal coordinate system. The X-axis direction is the width direction of the housing 10, the Y-axis direction is the depth direction of the housing 10, and the Z-axis direction is the height direction (also called the thickness direction) of the housing 10. The housing 10 is connected to the cover 20 at the end on the back side in the depth direction (-Y side) via a hinge (not shown).

[0017] The housing 10 includes an upper cover 11 that forms the top surface of the housing 10, and a bottom cover 12 that forms the bottom surface of the housing 10. The upper cover 11 is provided with a keyboard (not shown) and a touchpad 11a (not shown in FIG. 1, see FIG. 4). The touchpad 11a is disposed on the near side in the depth direction (+Y side), and the keyboard is disposed further back in the depth direction than the touchpad 11a (-Y side).

[0018] The lid body 20 has a display device (not shown) on the surface facing the upper cover 11 of the housing 10. The display device is formed of, for example, a liquid crystal display or an organic EL display. The lid body 20 is connected to a hinge (not shown) provided at the end of the housing 10 on the rear side in the depth direction (-Y side) so as to be rotatable around an axis extending in the width direction (X-axis direction).

[0019] When the lid 20 is opened, the display device faces the front side in the depth direction (+Y side), and the upper cover 11 (keyboard, touch pad 11a, etc.) of the housing 10 is in an open state. On the other hand, when the lid 20 is closed, the lid 20 becomes a cover that covers the display device and the upper cover 11 of the housing 10, as shown in FIG.

[0020] FIG. 2 is a bottom view of the bottom cover 12 and an exploded view of the bottom cover 12 in one embodiment of the present invention. As shown in FIG. 2, the bottom cover 12 is configured to be separable into a first bottom cover 13 and a second bottom cover 14 in the depth direction (Y-axis direction).

[0021] The first bottom cover 13 is disposed on the rear side in the depth direction (-Y side) and is fixed to the above-mentioned upper cover 11. The first bottom cover 13 is formed with a plurality of exhaust ports 13a for dissipating heat inside the housing 10. The plurality of exhaust ports 13a face exhaust ports of an air-cooling fan (not shown) disposed inside the housing 10.

[0022] A step portion 13b is provided on the front side (+Y side) in the depth direction of the first bottom cover 13. The step portion 13b is covered from the bottom side (-Z side) by the second bottom cover 14. The step portion 13b has an opening 13c that exposes a solid state drive 43 (hereinafter referred to as SSD 43) shown in FIG. 3 to be described later in a replaceable manner when the second bottom cover 14 is separated.

[0023] The first bottom cover 13 and the second bottom cover 14 are separably locked via a pair of locking mechanisms 15. The locking mechanism 15 is disposed in a locking mechanism mounting portion 15a of the stepped portion 13b of the first bottom cover 13, and has a slide claw that engages with an engagement hole 15b of the second bottom cover 14. The locking mechanism 15 locks and unlocks the first bottom cover 13 and the second bottom cover 14 by sliding the slide claw in the Y-axis direction.

[0024] Fig. 3 is a bottom view of the housing 10 with the bottom cover 12 removed in one embodiment of the present invention. Fig. 4 is a cross-sectional view taken along line IV-IV shown in Fig. 3. In Fig. 3, in order to improve the visibility of the arrangement of various electronic components inside the housing 10, the cooling fan, keyboard, etc. are not shown, and part of the upper cover 11 is exposed. Similarly, in Fig. 4, the cooling fan and keyboard are not shown.

[0025] 3, a flat box-shaped housing 10 contains a substrate 30, a high-frequency generating component 40, a high-frequency shield 50, an antenna 60, and a battery 70. The antenna 60 is disposed at the end of the housing 10 on the front side (+Y side) in the depth direction, and is fixed to the upper cover 11. The antenna 60 includes various antennas such as a LAN antenna and a WAN antenna.

[0026] The antenna 60 includes a first antenna 61 and a second antenna 62. The first antenna 61 is disposed at a corner on the near side (+Y side) in the depth direction of the housing 10 and on one side (+X side) in the width direction of the housing 10. The second antenna 62 is disposed at a corner on the near side (+Y side) in the depth direction of the housing 10 and on the other side (-X side) in the width direction of the housing 10. The antenna 60 is covered by the second bottom cover 14 described above.

[0027] The battery 70 is disposed on the rear side (-Y side) of the antenna 60 in the depth direction and on the front side (+Y side) of the board 30 in the depth direction. The battery 70 has a rectangular shape extending in the width direction (Y-axis direction). The battery 70 is electrically connected to various electronic components inside the housing 10. The battery 70 is covered by the above-mentioned second bottom cover 14. In other words, the second bottom cover 14 is a battery cover, and when the second bottom cover 14 is separated, the battery 70 is exposed from the bottom side (-Z side) so as to be replaceable.

[0028] The board 30 is disposed on the rear side (-Y side) of the battery 70 in the depth direction, and is fixed to the upper cover 11. The board 30 is provided with various electronic components (CPU, ROM, RAM, storage such as HDD or SSD, etc.) including a high frequency generating component 40. The board 30 includes a first board 31 and a second board 32. The first board 31 is disposed on one side (+X side) in the width direction. The second board 32 is disposed on the other side (-X side) in the width direction.

[0029] The first board 31 is provided with a first CPU 41, a first coil 42, and an SSD 43 as the high frequency generating component 40. The second board 32 is provided with a second CPU 44, a second coil 45, a memory 46, and a panel interface connector 47 as the high frequency generating component 40. The panel interface connector 47 connects the display device of the cover 20 to the second board 32. Note that, although there are two boards 30 in this embodiment, there may be only one board 30.

[0030] The high-frequency shield 50 is disposed between the high-frequency generating component 40 and the battery 70. The high-frequency shield 50 is made of a metal material and is provided on the substrate 30. The high-frequency shield 50 is electrically grounded. The high-frequency shield 50 includes a first high-frequency shield 51 and a second high-frequency shield 52. The first high-frequency shield 51 is provided on the first substrate 31. The second high-frequency shield 52 is provided on the second substrate 32.

[0031] The first high-frequency shield 51 is provided along the edge of the first substrate 31 on the near side in the depth direction (+Y side) so as to surround the SSD 43 arranged on the near side in the depth direction (+Y side) of the first substrate 31. A part of the first high-frequency shield 51 extends in the width direction (X-axis direction) and faces the multiple high-frequency generating components 40 (the first CPU 41, the first coil 42, the SSD 43) in the depth direction.

[0032] The second high-frequency shield 52 is provided along an edge on the front side (+Y side) in the depth direction of the second substrate 32. A part of the second high-frequency shield 52 extends in the width direction (X-axis direction) and faces the multiple high-frequency generating components 40 (the second CPU 44, the second coil 45, the memory 46, and the panel interface connector 47) in the depth direction.

[0033] 4, the second high-frequency shield 52 extends downward from the lower surface of the second substrate 32 and abuts against a gasket 53 provided on the second bottom cover 14. The gasket 53 is a conductive elastic body, and is formed, for example, from a sponge body having a metal film on its outer surface. The abutment between the second high-frequency shield 52 and the gasket 53 electrically grounds the second bottom cover 14. Although not shown, the first high-frequency shield 51 may also have a similar structure to the second high-frequency shield 52, or a different structure (for example, a structure in which the first high-frequency shield 51 is provided on a PCB holder or an FPC) and may be abutted against a gasket (not shown).

[0034] Fig. 5 is an enlarged view of a region A shown in Fig. 3. Fig. 6 is a cross-sectional view taken along line VI-VI shown in Fig. 5. As shown in FIG. 5, a grounding structure 80 for electrically grounding the first bottom cover 13 is provided at the end portion on the other widthwise end side (−X side) of the housing 10.

[0035] 6, the substrate 30 has a ground pad 81 on a surface facing the first bottom cover 13. The first bottom cover 13 is in contact with the ground pad 81 and is electrically grounded. Specifically, the ground pad 81 is provided on the lower surface (-Z side) of the substrate 30 facing the first bottom cover 13. The ground pad 81 is formed in a circular shape when viewed from the bottom (see FIG. 5).

[0036] The first bottom cover 13 has a boss portion 13e that protrudes upward toward the ground pad 81. An upper end surface of the boss portion 13e abuts against the ground pad 81. The boss portion 13e is formed in a cylindrical shape through which the bolt 83 is inserted (passes through) in the Z-axis direction. The bolt 83 is screwed into a screw hole 11c of the upper cover 11 to fix the upper cover 11 and the first bottom cover 13 together.

[0037] The substrate 30 is formed with a through hole 30a through which the bolt 83 passes. The ground pad 81 is disposed around the through hole 30a. An insulating washer 84 (made of, for example, nylon) is provided on the inside of the first bottom cover 13 to prevent the bolt 83 from falling off when the bolt 83 is removed from the upper cover 11.

[0038] A throttle portion 13d that locally reduces the inner diameter of the boss portion 13e is provided on the inside of the boss portion 13e. The washer 84 is disposed on the upper surface side (+Z side) of the throttle portion 13d. The outer diameter of the washer 84 is larger than the inner diameter of the throttle portion 13d. The inner diameter of the washer 84 is smaller than the thread diameter of the bolt 83 and larger than the thread root diameter of the bolt 83.

[0039] A ground pad 82 is also formed on the upper surface side (+Z side) of the substrate 30. The ground pad 82 is disposed around the through hole 30a and contacts the upper cover 11 to electrically ground the upper cover 11.

[0040] Next, the effects of the electronic device 1 having the above configuration will be described.

[0041] 4, in the electronic device 1, an antenna 60, a battery 70, and a board 30 are arranged in this order from the front side (+Y side) to the back side (-Y side) in the depth direction (Y-axis direction) of the housing 10. A high-frequency generating component 40 that generates high frequencies is provided on the board 30, and a high-frequency shield 50 is arranged between the high-frequency generating component 40 and the battery 70.

[0042] As a result, the high frequency generated from the high frequency generating component 40 is blocked by the high frequency shield 50, reducing the effect of the high frequency on the antenna 60. Also, by arranging the high frequency shield 50 on the rear side in the depth direction (-Y side) of the battery 70, the space on the front side in the depth direction (+Y side) of the battery 70 can be effectively used. For example, as shown in Fig. 4, the gap S1 between the battery 70 and the antenna 60 can be reduced, and the battery 70 can be made larger accordingly.

[0043] 2, the bottom cover 12 of the housing 10 can be separated into a first bottom cover 13 and a second bottom cover 14. The first bottom cover 13 is disposed on the rear side in the depth direction (-Y side) and is fixed to the upper cover 11. The second bottom cover 14 is disposed on the front side in the depth direction (+Y side). The second bottom cover 14 can be separated from the upper cover 11 and the first bottom cover 13, in other words, the second bottom cover 14 is fixed in a floating state with respect to the first bottom cover 13.

[0044] As a result, even if a user of the electronic device 1, for example, grabs the front depth side (+Y side) of the housing 10 when lifting the housing 10, the second bottom cover 14 is floating relative to the first bottom cover 13 (is not rigidly fixed), so the force of gripping the front depth side (+Y side) of the housing 10 is not easily transmitted from the second bottom cover 14 to the first bottom cover 13, reducing the possibility of stress concentrating on the fixing parts of the bolts 83 of the first bottom cover 13, causing damage (the so-called locking phenomenon).

[0045] The electrical grounding of the second bottom cover 14 in the floating state can be ensured by abutting the high frequency shield 50 and the gasket 53 as shown in Fig. 4. Meanwhile, since the first bottom cover 13 can be rigidly fixed to the upper cover 11, the electrical grounding of the first bottom cover 13 can be ensured by the ground pad 81 shown in Fig. 5 without using an elastic body such as the gasket 53. Since the ground pad 81 is provided on the substrate 30, the diameter D1 can be increased, and the stability of the abutment with the first bottom cover 13 and the electrical grounding can be improved.

[0046] Thus, the electronic device 1 of the present embodiment described above includes a flat box-shaped housing 10, and an antenna 60, a battery 70, and a board 30 provided inside the housing 10, with the antenna 60, the battery 70, and the board 30 being arranged in this order from the front side (+Y side) to the back side (-Y side) in the depth direction (Y axis direction) of the housing 10, and the board 30 is provided with a high frequency generating component 40 that generates high frequency waves, and a high frequency shield 50 that is arranged between the high frequency generating component 40 and the battery 70. With this configuration, the space inside the flat box-shaped housing 10 can be effectively utilized to appropriately arrange various components including the high frequency shield 50.

[0047] 3, multiple high frequency generating components 40 are provided on the substrate 30, and the high frequency shield 50 extends in a width direction (X-axis direction) intersecting with the depth direction and faces the multiple high frequency generating components 40 in the depth direction. With this configuration, high frequency generated from the multiple high frequency generating components 40 can be efficiently blocked by the number of high frequency shields 50, which is smaller than the number of high frequency generating components 40.

[0048] In this embodiment, the housing 10 includes an upper cover 11 and a bottom cover 12, and the bottom cover 12 includes a first bottom cover 13 arranged on the rear side in the depth direction (-Y side) and fixed to the upper cover 11, and a second bottom cover 14 arranged on the front side in the depth direction (+Y side) and separable from the upper cover 11 and the first bottom cover 13. With this configuration, even if a user grasps the front side in the depth direction of the housing 10 (second bottom cover 14), a load is unlikely to be applied to the fixed portion (first bottom cover 13).

[0049] In this embodiment, the substrate 30 has a ground pad 81 on the surface facing the first bottom cover 13, and the first bottom cover 13 is electrically grounded by contacting the ground pad 81. With this configuration, the first bottom cover 13 can be stably grounded.

[0050] In this embodiment, the upper cover 11 and the first bottom cover 13 are fixed together via bolts 83, the substrate 30 is formed with through holes 30a through which the bolts 83 pass, and the ground pads 81 are disposed around the through holes 30a. With this configuration, the first bottom cover 13 and the ground pads 81 can be brought into close contact with each other by fastening the bolts 83.

[0051] In this embodiment, an insulating washer 84 is provided on the inside of the first bottom cover 13 to prevent the bolt 83 from falling off when the bolt 83 is removed from the upper cover 11. With this configuration, it is possible to prevent the bolt 83 from being lost when the first bottom cover 13 is removed from the upper cover 11.

[0052] Although the embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to the above embodiment, and the present invention also includes designs that do not deviate from the gist of the present invention. The configurations described in the above embodiment can be arbitrarily combined as long as they are not inconsistent.

[0053] For example, although a notebook PC has been exemplified as an electronic device, the present invention can also be applied to other terminal devices. [Explanation of symbols]

[0054] 1 Electronic device, 10 Housing, 11 Upper cover, 11a Touch pad, 11c Screw hole, 12 Bottom cover, 13 First bottom cover, 13a Exhaust port, 13b Step portion, 13c Opening, 13d Constriction portion, 13e Boss portion, 14 Second bottom cover, 15 Lock mechanism, 15a Lock mechanism arrangement portion, 15b Lock hole, 20 Lid, 30 Board, 30a Through hole, 31 First board, 32 Second board, 40 High frequency generating component, 41 First CPU, 42 First coil, 43 Solid state drive, 44 Second CPU, 45 Second coil, 46 Memory, 47 Panel interface connector, 50 High frequency shield, 51 First high frequency shield, 52 Second high frequency shield, 53 Gasket, 60 Antenna, 61 First antenna, 62 Second antenna, 70 Battery, 80 Grounding structure, 81 Ground pad, 82 Ground pad, 83 Bolt, 84 Washer, D1 diameter, S1 gap

Claims

1. A flat box-shaped housing; An antenna, a battery, and a substrate provided inside the housing, the antenna, the battery, and the circuit board are arranged in this order from the front side to the back side in a depth direction of the housing, The substrate includes: A high frequency generating component that generates high frequency waves; and a high frequency shield disposed between the high frequency generating component and the battery. electronic equipment.

2. The high frequency generating component is provided in plurality on the substrate, the high-frequency shield extends in a width direction intersecting with the depth direction and faces the plurality of high-frequency generating components in the depth direction; 2. The electronic device according to claim 1.

3. The housing includes an upper cover and a bottom cover, The bottom cover is a first bottom cover disposed on the inner side in the depth direction and fixed to the upper cover; a second bottom cover that is disposed on a front side in the depth direction and is separable from the upper cover and the first bottom cover, 3. The electronic device according to claim 1 or 2.

4. the substrate includes a ground pad on a surface facing the first bottom cover, the first bottom cover is in contact with the ground pad and is electrically grounded; 4. The electronic device according to claim 3.

5. The upper cover and the first bottom cover are fixed to each other via bolts, a through hole through which the bolt passes is formed in the substrate; The ground pad is disposed around the through hole.

5. The electronic device according to claim 4.

6. An insulating washer is provided on the inside of the first bottom cover to prevent the bolt from falling off when the bolt is removed from the upper cover.

6. The electronic device according to claim 5.

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