JP2011004263A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic apparatus that improves the receiver sensitivity of an antenna and uses a mounting space effectively.SOLUTION: The electronic apparatus 1 includes: a body 2 with an end 21 wherein a display 3 is turnably connected; a convex part 31 that is provided in the end 21 with an upward convex, and has an upper wall 35 uncovered by the display 3 when the display 3 is stacked on the body 2; and an antenna 44 stuck on an internal surface 35a of the upper wall 35 of the convex part 31.

Description

  The present invention relates to an electronic device including an antenna.

  In general, an electronic device such as a notebook personal computer has an antenna mounted on a display portion. However, in recent years, the housing of the display unit is often formed of a metal such as a magnesium alloy in order to reduce the thickness, for example. In such a metal casing, it is necessary to attach an antenna cover made of synthetic resin to a portion that accommodates the antenna.

  Patent Document 1 discloses an information processing apparatus in which an antenna mounting substrate on which a wireless antenna is mounted is mounted inside a main body. This information processing apparatus includes an extension cover that is exposed to the outside even when the display unit is closed, in an area sandwiched between left and right hinges. An antenna mounting board is accommodated in the extension cover.

JP 2002-312063 A

  By the way, the antenna mounting substrate described in Patent Document 1 is accommodated near the lower end of the extension cover. Therefore, there is room for improvement from the viewpoint of antenna reception sensitivity. Furthermore, the structure of Patent Document 1 cannot be said to effectively use the shape of the expansion cover, and a dead space is generated in the housing.

  The objective of this invention is providing the electronic device which can improve the receiving sensitivity of an antenna and can utilize mounting space effectively.

  An electronic device according to one aspect of the present invention includes a display unit, a main body unit having an end part to which the display unit is rotatably connected, and a convex shape provided at the end part and facing upward. And a convex portion having an upper wall that is formed and is not covered with the display portion when the display portion is overlaid on the main body portion, and an antenna attached to the inner surface of the upper wall of the convex portion. .

  ADVANTAGE OF THE INVENTION According to this invention, while improving the receiving sensitivity of an antenna, a mounting space can be utilized effectively.

1 is a perspective view of an electronic device according to a first embodiment of the present invention. The perspective view which expands and shows the rear-end part of the electronic device shown in FIG. FIG. 2 is a perspective view of the electronic device shown in FIG. 1 in an open state. The perspective view which shows the rear-end part of the electronic device shown in FIG. FIG. 2 is a cross-sectional view of the electronic device shown in FIG. 1. Sectional drawing of one modification of the electronic device shown in FIG. The perspective view of the electronic device concerning the 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings applied to a notebook personal computer.

(First embodiment)
1 to 6 disclose an electronic apparatus 1 according to a first embodiment of the present invention. The electronic device 1 is a notebook personal computer, for example. Note that electronic devices to which the present invention can be applied are not limited to the above. The present invention can be widely applied to various electronic devices including various types of information processing apparatuses, PDAs (Personal Digital Assistants), game machines, and the like.

  As shown in FIG. 1, the electronic device 1 includes a main body 2, a display 3, and hinges 4a and 4b. The main body 2 is an electronic device main body on which a main circuit board is mounted. The main body 2 has a housing 6 (main body housing) formed in a box shape. As shown in FIG. 3, the housing 6 includes a main body upper wall 7, a main body peripheral wall 8, and a main body lower wall 9.

  The main body lower wall 9 is a wall portion facing the placement surface when the electronic device 1 is placed on the placement surface (for example, on a desk). The main body lower wall 9 extends so as to be substantially parallel to the placement surface. The main body upper wall 7 extends substantially parallel (ie, substantially horizontal) to the main body lower wall 9 with a space between the main body lower wall 9 and the main body lower wall 9. A keyboard 10 is attached to the main body upper wall 7. The main body peripheral wall 8 stands up with respect to the main body lower wall 9 and connects the peripheral edge of the main body lower wall 9 and the peripheral edge of the main body upper wall 7.

  As shown in FIG. 3, the display unit 3 includes a display housing 12 and a display device 13 accommodated in the display housing 12. The display device 13 has a display screen 13a. The display screen 13 a is exposed to the outside of the display housing 12 through the opening 12 a on the front surface of the display housing 12.

  As shown in FIGS. 3 and 5, the display housing 12 includes a front wall 14 in which the opening 12 a is formed, and a back wall 15 that faces the display device 13 from the side opposite to the front wall 14. . The display housing 12 includes a mask member 16 including a front wall 14 and a cover member 17 including a back wall 15. The cover member 17 is made of a metal material such as a magnesium alloy.

  As shown in FIG. 1, the main body 2 includes a rear end 21 that is a first end and a front end 22 that is a second end. The display portion 3 is rotatably connected to the rear end portion 21 by, for example, a pair of hinge portions 4a and 4b. That is, the rear end portion 21 is an example of the “end portion” in the present invention. The front end portion 22 is an end portion on the side opposite to the rear end portion 21 in the main body portion 2. In the present specification, the closer to the user is defined as the front, and the far side is defined as the rear. Also, the left and right are defined based on the state viewed from the user.

  As shown in FIG. 2, the pair of hinge portions 4 a and 4 b (first and second hinge portions 4 a and 4 b) are provided separately at both left and right ends of the electronic device 1. The first and second hinge portions 4a and 4b each have a horizontally extending hinge shaft 23, and both side end portions (that is, left and right end portions) of the display portion 3 are connected to both sides of the main body portion 2. It is connected to an end (that is, both left and right ends) so as to be rotatable. Accordingly, the display unit 3 can be rotated between a closed position where the display unit 3 is tilted so as to cover the main body unit 2 from above and an open position where the display unit 3 is raised with respect to the main body unit 2.

  As shown in FIGS. 1 and 3, the main body peripheral wall 8 includes a main body front wall 25, a main body rear wall 26, a main body left wall 27, and a main body right wall 28. The main body front wall 25 is located at the front end 22. The main body front wall 25 extends in the width direction (left-right direction) of the housing 6 and faces the user when the electronic apparatus 1 is used. The main body rear wall 26 is located at the rear end 21. The main body rear wall 26 extends substantially parallel to the main body front wall 25. The main body left wall 27 extends in the depth direction (front-rear direction) of the housing 6 so as to connect the left end portion of the main body front wall 25 and the left end portion of the main body rear wall 26. The main body right wall 28 extends in the depth direction (front-rear direction) of the housing 6 so as to connect the right end portion of the main body front wall 25 and the right end portion of the main body rear wall 26.

Next, the convex portion 31 will be described in detail.
As shown in FIGS. 2 and 3, the rear end portion 21 is provided with a convex portion 31. The convex portion 31 is formed in a convex shape facing upward, and protrudes upward compared to, for example, the keyboard 10 and other portions of the main body portion 2. The convex part 31 is provided between the 1st and 2nd hinge parts 4a and 4b. The convex portion 31 according to the present embodiment extends continuously between the first and second hinge portions 4a and 4b and has a relatively long rectangular parallelepiped shape.

  As shown in FIG. 2, the protrusion 31 is provided in a region that does not overlap the display unit 3 when the display unit 3 is tilted with respect to the main unit 2 and the display unit 3 is superimposed on the main unit 2. Yes. Specifically, as shown in FIG. 3, the first and second hinge portions 4 a and 4 b protrude downward from the display portion 3. Thereby, the recessed part 33 recessed with respect to the main-body part 2 by the 1st and 2nd hinge parts 4a and 4b and the lower wall 32 of the display part 3 is formed.

  The convex portion 31 is provided in a region located in the concave portion 33 when the display unit 3 is superimposed on the main body unit 2. Thereby, the convex part 31 becomes substantially the same height as the display part 3 without being covered by the display part 3 by entering the concave part 33 when the display part 3 is superimposed on the main body part 2. That is, the protrusions 31 are arranged in the horizontal direction on the display unit 3 superimposed on the main body unit 2. As shown in FIG. 3, when the display unit 3 is raised, the display unit 3 retracts with respect to the convex portion 31 and is not positioned above the convex portion 31. The lower wall 32 of the display unit 3 is in a state of being separated from the convex part 31.

  As shown in FIG. 4, the convex portion 31 is a portion having a relatively thickness in the electronic device 1. For this reason, the convex portion 31 accommodates various connectors 34 such as a USB connector, an RGB connector, and a power connector.

  As shown in FIG. 3, the convex portion 31 has an upper wall 35, a front wall 36, a rear wall 37, a left wall 38, and a right wall 39. The upper wall 35 is located at the top of the convex portion 31 and extends substantially horizontally. As shown in FIG. 5, when the display unit 3 is overlapped with the main body unit 2, the upper wall 35 is exposed to the outside without being covered with the display unit 3. At this time, the upper wall 35 is positioned above the display screen 13a, for example, and is positioned at substantially the same height as the back wall 15 of the display unit 3, for example. The upper surface 35t of the upper wall 35 is located on substantially the same plane as the upper surface 3t of the display unit 3, for example, and becomes the uppermost surface of the electronic device 1. The upper surface 3t of the display unit 3 is a surface that becomes the upper surface of the display unit 3 when the display unit 3 is superimposed on the main body unit 2.

  As shown in FIG. 5, the front wall 36 is an example of the “standing wall” in the present invention. The front wall 36 extends downward from the front edge, which is the first edge of the upper wall 35, and is connected to the main body upper wall 7 behind the keyboard 10. The front wall 36 is inclined so as to move away from the rear wall 37 as it advances downward. A first curved surface portion 41 is provided at an end portion connected to the upper wall 35 of the front wall 36. The rear wall 37 extends downward from the rear edge, which is the second edge of the upper wall 35, and is connected to the main body rear wall 26. A second curved surface portion 42 is provided at an end portion connected to the upper wall 35 of the rear wall 37.

  As shown in FIG. 3, the left wall 38 extends downward from the left edge of the upper wall 35. The left wall 38 is provided at a position entering the inside of the main body 2 by the amount of the first hinge portion 4a with respect to the main body left wall 27, and below the first hinge portion 4a. It is connected to. A first hinge portion 4a is connected to the left wall 38.

  Similarly, the right wall 39 extends downward from the right edge of the upper wall 35. The right wall 39 is provided at a position entering the inside of the main body 2 by the amount of the second hinge portion 4b with respect to the main body right wall 28, and below the second hinge portion 4b. It is connected to. The second wall 4b is connected to the right wall 39.

  Most of the housing 6 of the main body 2 is shielded for the purpose of preventing leakage of unnecessary radiation from the inside of the housing 6 to the outside and preventing intrusion of unnecessary radiation from the outside into the housing 6, for example. ing. Specifically, a metal layer is formed on the inner surface of the housing 6 by metal plating, a conductive coating layer, or a metal foil. On the other hand, the convex portion 31 is not subjected to the shielding process as described above. That is, the convex part 31 is a non-shielding part.

  As shown in FIG. 2, for example, a plurality of antennas 44 are mounted on the convex portion 31. As shown in FIG. 5, each antenna 44 is affixed to the inner surface 35 a of the upper wall 35 of the convex portion 31 with, for example, a double-sided tape. An open space extends above the antenna 44 even when the display unit 3 is superimposed on the main body unit 2. Thereby, even when the display unit 3 is superimposed on the main body unit 2, the transmission / reception sensitivity of the antenna is not easily affected.

  The antenna 44 has flexibility capable of following the inner surface shape of the upper wall 35, for example. The antenna 44 is, for example, a film-like planar antenna. The antenna 44 is an antenna used for, for example, a wireless LAN, Bluetooth (registered trademark), or a third generation mobile communication system (3G). The antenna may be used for purposes other than those described above.

  As shown in FIG. 5, the antenna 44 has a length larger than the width W of the upper wall 35 in the front-rear direction, for example, and is accommodated in the convex portion 31 in a bent shape. The antenna 44 is pasted from the upper wall 35 to the front wall 36, for example. Here, the upper wall 35 is not a flat surface, for example, and has an inclined portion 35b where the thickness of the upper wall 35 changes. A part of the antenna 44 (first portion 44 a) is deformed according to the shape of the inner surface of the upper wall 35 and attached along the inner surface 35 a of the upper wall 35.

  The other part (second portion 44b) of the antenna 44 is deformed according to the inner shape of the first curved surface portion 41 and the front wall 36, and the inner surface 41a of the first curved surface portion 41 and the inner surface of the front wall 36. Affixed along 36a. The antenna 44 may not be attached along the inner surface 41 a of the first curved surface portion 41 and the inner surface 36 a of the front wall 36. A part of the antenna 44 may be hung from a portion attached to the upper wall 35.

  The antenna 44 according to this embodiment includes a radio wave transmission / reception unit and a cable (not shown) for transmitting the electric signal. Note that an insulator film is attached to the antenna 44 as necessary.

  As shown in FIG. 5, a circuit board 46 is accommodated in the convex portion 31. The circuit board 46 faces the inner surface 35 a of the upper wall 35. An amplification / modulation circuit that amplifies and modulates the signal of the antenna 44 is mounted on the circuit board 46. The antenna 44 is provided separately from the circuit board 46 and is disposed above the circuit board 46. The circuit board 46 is a separate board formed separately from the main board, for example. The “circuit board” in the present invention is not limited to a separate board, and may be a main circuit board.

  The antenna 44 is electrically connected to the circuit board 46 by, for example, a cable (not shown). The antenna 44 may be directly connected to the circuit board 46 (so-called direct connection) by a conductive leg portion such as a lead.

  As described above, the connector 31 is accommodated in the convex portion 31. As shown in FIG. 5, the connector 34 has, for example, a metal shell 34a. The antenna 44 is disposed above the connector 34. The antenna 44 is provided at a position higher than the center C of the hinge shaft 23, for example.

  According to the electronic apparatus 1 having such a configuration, design restrictions can be reduced, the antenna reception sensitivity can be improved, and the mounting space can be effectively utilized.

  Usually, the antenna is mounted on the display unit. When a metal housing is used as the housing of the display unit, a part of the metal housing facing the antenna is cut out and a synthetic resin antenna cover is attached. In such a structure, the vertical width (that is, the depth dimension) of the display unit becomes long, and design restrictions arise.

  On the other hand, the electronic device 1 according to the present embodiment has a main body portion 2 having an end portion 21 to which the display portion 3 is rotatably connected, and a convex shape provided on the end portion 21 and facing upward. A convex portion 31 having an upper wall 35 that is formed and is not covered with the display portion 3 when the display portion 3 is superimposed on the main body portion 2 is provided, and the antenna 44 is an inner surface of the upper wall 35 of the convex portion 31. It is affixed to 35a.

  According to such a configuration, firstly, the antenna cover of the display unit 3 using a metal casing is not necessary, and the design is improved by reducing design restrictions, and the number of parts related to the antenna cover is increased. The number of assembly steps can be reduced. Second, since the antenna notch is not required in the housing 6 of the display unit 3, the rigidity of the housing 6 can be improved. Thirdly, the vertical width of the display unit 3 can be shortened, and the electronic device 1 can be reduced in size, weight, and cost.

  Further, even when the display unit 3 is overlaid on the main body 2 as in this embodiment, if the upper wall 35 to which the antenna 44 is attached is not covered with the display unit 3, the display unit 3 is overlaid on the main body 2. Even at times, the transmission / reception sensitivity of the antenna 44 is hardly affected, and the transmission / reception sensitivity can be kept good.

  Here, in the structure of the above-mentioned patent document 1, the antenna is mounted on the substrate, and the position of the antenna is lowered with respect to the upper wall of the extended cover formed in a convex shape. That is, it cannot be said that this structure effectively utilizes the shape of the extended cover formed in a convex shape.

  On the other hand, in the present embodiment, the antenna 44 is attached to the inner surface 35a of the upper wall 35 of the convex portion 31 formed in a convex shape, and the antenna 44 is mounted at the highest position in the main body portion 2. Yes. For this reason, the transmission / reception sensitivity of the antenna 44 can be further improved. That is, the structure according to the present embodiment is intended to improve the transmission / reception sensitivity by effectively using the shape of the convex portion 31 and increasing the mounting height of the antenna 44.

  Moreover, in the structure of the above-mentioned patent document 1, since the antenna is mounted on the substrate, and if a component (particularly a component having a metal part) is disposed above the antenna, the transmission / reception sensitivity of the antenna is deteriorated. Various parts cannot be placed. Therefore, the space above the antenna becomes a dead space.

  On the other hand, in this embodiment, since the antenna 44 is affixed to the inner surface 35a of the upper wall 35, various parts including parts having metal parts can be arranged in the space below the antenna 44. Thereby, the mounting space in the convex part 31 can be used effectively, and high-density mounting can be realized.

  When the antenna 44 has flexibility to follow the inner surface shape of the upper wall 35 and at least part of the antenna 44 extends along the inner surface 35a of the upper wall 35, the antenna 44 can be more reliably mounted at a high position. Further, the mounting space below the antenna 44 can be increased, and an electronic device advantageous for high-density mounting can be provided. When a part of the antenna is along the inner surface of the curved surface portion 41, the mounting space below the antenna 44 can be further expanded, and an electronic device more advantageous for high-density mounting can be provided.

  When the antenna 44 is provided separately from the circuit board 46 and is disposed above the circuit board 46, the dead space above the antenna 44 is not left, and the mounting space in the housing 6 is made more effective. Can be used. When the antenna 44 is positioned above the connector 34, the transmission / reception sensitivity of the antenna 44 is hardly affected by the connector 34 having the metal shell 34a, and good transmission / reception sensitivity can be realized.

  When the convex portion 31 is provided between the first and second hinge portions 4a and 4b, the length of the convex portion 31 can be easily secured relatively long. Thereby, for example, the position where each antenna 44 is pasted is highly flexible, and each antenna 44 can be pasted where the transmission / reception sensitivity is best.

  If the upper surface 35t of the upper wall 35 is positioned on substantially the same plane as the upper surface 3t of the display unit 3 when the display unit 3 is overlaid on the main body unit 2, the antenna 44 is provided at the uppermost part of the electronic device 1. The transmission / reception sensitivity of the antenna 44 is further improved.

  FIG. 6 shows an example of the electronic apparatus 1 according to the modification of the first embodiment. As shown in FIG. 6, the antenna 44 may be disposed above the connector 34 having a metal shell 34a. When the antenna 44 is disposed above the connector 34, the transmission / reception sensitivity of the antenna 44 is hardly affected by the connector 34, and good transmission / reception sensitivity is realized.

(Second Embodiment)
Next, an electronic apparatus 1 according to a second embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the structure which has the same or similar function as the structure of the said 1st Embodiment, and the description is abbreviate | omitted. The configuration other than that described below is the same as that of the first embodiment.

  As shown in FIG. 7, the electronic device 1 according to the present embodiment has two convex portions 31. The two convex portions 31 are separately arranged on both sides of the hinge portion 51 so as to sandwich one hinge portion 51 provided in the display portion 3 therebetween. The antenna 44 is affixed to the inner surface 35a of the upper wall 35 of the convex portion 31 as in the first embodiment.

  According to the electronic apparatus 1 having such a configuration, as in the first embodiment, design constraints can be reduced, the antenna reception sensitivity can be improved, and the mounting space can be effectively utilized. it can.

  As mentioned above, although the electronic device 1 which concerns on the 1st and 2nd embodiment of this invention was demonstrated, this invention is not limited to these. Each component according to the first and second embodiments can be used in appropriate combination. Further, the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the gist thereof in the implementation stage.

  For example, the antenna 44 does not necessarily have flexibility, and may be an antenna having relatively high rigidity. The antenna 44 does not necessarily need to be deformed following the inner surface shape of the upper wall 35. The antenna 44 need not be attached along the inner surface 36a of the front wall 36 or the inner surface 41a of the curved surface portion 41. The upper surface 35t of the upper wall 35 does not have to be positioned on substantially the same plane as the upper surface 3t of the display unit 3 when the display unit 3 is superimposed on the main body unit 2.

  DESCRIPTION OF SYMBOLS 1 ... Electronic device, 2 ... Main part, 3 ... Display part, 3a ... Upper surface of display part, 4a, 4b, 51 ... Hinge part, 21 ... End part of main part, 31 ... Convex part, 34 ... Connector, 34a ... Metal shell, 35 ... upper wall, 35t ... upper surface, 35a ... inner surface of upper wall, 36 ... front wall, 36a ... inner surface of front wall, 41 ... curved surface portion, 41a ... inner surface of curved surface portion, 44 ... antenna, 46 ... circuit substrate.

Claims (7)

A display unit;
A main body having an end part to which the display part is rotatably connected;
A convex portion provided at the end portion, formed in a convex shape facing upward, and having an upper wall that is not covered by the display portion when the display portion is superimposed on the main body portion;
An antenna attached to the inner surface of the upper wall of the convex portion;
An electronic apparatus comprising: In the description of claim 1,
The antenna has flexibility that can follow the shape of the inner surface of the upper wall, and at least part of the antenna is along the inner surface of the upper wall. In the description of claim 2,
The convex portion has a standing wall extending downward from an edge of the upper wall, and a curved surface portion is provided at an end portion of the standing wall connected to the upper wall.
A part of the antenna is along an inner surface of the curved surface portion. In the description of claim 3,
A circuit board facing the inner surface of the upper wall;
The electronic apparatus is provided with a separate antenna from the circuit board, and is disposed above the circuit board. In the description of claim 3,
The convex portion contains a connector having a metal shell,
The electronic apparatus is characterized in that the antenna is disposed above the connector. In the description of claim 1,
A pair of hinge portions for connecting side end portions on both sides of the display portion to the main body portion;
The said convex part is provided ranging between said pair of hinge parts, The electronic device characterized by the above-mentioned. In the description of claim 1,
The electronic apparatus according to claim 1, wherein an upper surface of the upper wall is positioned on substantially the same plane as the upper surface of the display unit when the display unit is overlaid on the main body unit.

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