JP5158500B2 - Portable wireless device - Google Patents

Description

  The present invention relates to a portable wireless device such as a mobile phone, a PDA, and a game machine.

  In order to reduce the thickness while maintaining the strength of the entire portable radio apparatus, a portable radio apparatus having a conductive frame also used as a shield case in a casing is known. In such a portable wireless device, the antenna needs to be separated from the frame in order to reduce the influence of the frame on the radiation characteristics of the antenna. As a result, the housing cannot be sufficiently downsized.

Therefore, in the portable wireless devices disclosed in Patent Documents 1 to 3, a portion facing the antenna of the frame is cut out, and a nonconductive member is arranged in the cut out portion. A key board on which a switch for receiving a user operation is disposed is disposed on the frame and the non-conductive member. Thereby, the influence on the radiation characteristics of the antenna of the frame is reduced, and the antenna is also used as the position of the substrate. As a result, the area of the operation unit is ensured while the portable wireless device is downsized.
JP 2006-121630 A JP 2006-238204 A JP 2007-158632 A

  Portable wireless devices are required to be further downsized. On the other hand, there is still room for examination regarding the method of using the non-conductive members arranged side by side in the frame regardless of the existence of Patent Documents 1 to 3. For example, Patent Documents 1 to 3 focus only on the fact that the non-conductive member has a small influence on the radiation characteristics of the antenna, and do not focus on the insulation of the non-conductive member. Further, applications other than the arrangement of the key board are not disclosed. And it is possible to optimize the component arrangement inside a housing | casing by utilizing a nonelectroconductive member more effectively.

  An object of the present invention is to provide a portable wireless device that can reduce the size of the casing by optimizing the component arrangement inside the casing.

  The portable wireless device of the present invention includes a casing in which the operation member is exposed, a conductive frame member provided in the casing and having a first surface facing the inner side of the operation member, and in the casing. An antenna provided apart from the frame member in a predetermined direction along the first surface, and a non-conductive having a second surface that is fixed to the end of the frame member on the antenna side and that is continuous with the first surface And a plurality of switches that are stacked on the first surface and the second surface and have a mounting surface facing the inner side of the operation member, and are operated on the mounting surface via the operation member Is disposed on the extension member, and an electronic component disposed in the housing.

  Preferably, the antenna and the extension member are in a positional relationship in which a part thereof faces each other, and the electronic component is provided in a region of the extension member that does not face the antenna.

  Preferably, the frame member has a first wall portion protruding toward the back side of the first surface and facing the antenna side, and the extension member is a back side of the first surface of the frame member. And an abutting portion that abuts on a portion closer to the antenna than the first wall portion and is fixed to the frame member by a screw, and projects from the abutting portion to the back side of the first surface, and the first wall And a second wall portion with which the wall surfaces come into contact with each other.

  Suitably, the said electronic component is a terminal component exposed from the opening formed in the said housing | casing.

  Preferably, the casing has a pair of side portions facing each other with the frame member and the extension member sandwiched between the first surface and the second surface and in the predetermined direction. The extension member is provided from a position facing one of the side surface portions to a position facing the other side surface portion, and the terminal component is disposed on both end surfaces of the extension member facing the pair of side surface portions. Each is provided and exposed from the opening formed in each of the pair of side surface portions.

  Preferably, the key board is a flexible board, and a switch arrangement part in which the plurality of switches are arranged across the first surface and the second surface, and a peripheral edge of the switch arrangement part An extension part that is bent from the switch arrangement part and arranged on the end face, the terminal component is mounted on the extension part, and the extension member is The extending portion has a locking portion that can be engaged.

  Preferably, the extension member further includes an electroacoustic conversion portion, and a recess in which the electroacoustic conversion portion is disposed is formed on the back side of the second surface, and the second surface is provided on the bottom surface of the recess. A sound hole leading to the surface side is formed.

  According to the present invention, it is possible to reduce the size of the housing by optimizing the arrangement of components inside the housing.

  FIG. 1 is a perspective view of a mobile phone 1 according to an embodiment of the present invention. In FIG. 1, a charging stand 101 for charging the mobile phone 1 is also schematically shown.

  The mobile phone 1 is constituted by a so-called straight type mobile phone and has one housing 3. The housing 3 is formed in, for example, a substantially rectangular parallelepiped shape, and includes a front part 3a and a back part 3b facing each other, two side parts 3c intersecting (orthogonal) with the front part 3a and the back part 3b, and a front part. 3a, a first end surface 3d and a second end surface 3e intersecting (orthogonal) with the back surface portion 3b and the side surface portion 3c. The two side surface portions 3c, the first end surface 3d, and the second end surface 3e constitute a peripheral surface portion 3j that surrounds the outer periphery of the front surface portion 3a and the back surface portion 3b. Moreover, the housing | casing 3 has the 1st end part 3m containing the 1st end surface 3d, and the 2nd end part 3n containing the 2nd end surface 3e.

  The housing 3 is formed thin. That is, the distance between the front surface portion 3a and the back surface portion 3b is shorter than the distance between the two side surface portions 3c and the distance between the first end surface 3d and the second end surface 3e. In the following, the facing direction of the front surface portion 3a and the back surface portion 3b may be referred to as the thickness direction of the housing 3. The housing 3 is configured such that the opposing direction of the first end surface 3d and the second end surface 3e is the longitudinal direction and the opposing direction of the two side surfaces 3c is the short direction.

  The housing 3 is provided with various electronic components and the like. For example, the casing 3 includes a first speaker 83 for calling (see FIG. 11) that outputs sound from a sound emitting hole 3g that opens on the upper side of the front portion 3a, and a sound collection that opens on the lower side of the front portion 3a. A microphone 87 for calls (see FIG. 3) through which sound is input from the hole 3h, an operation unit 11 that receives a user operation from the front surface 3a side, a display unit 13 that displays an image on the front surface 3a side, and the mobile phone 1 A terminal component 15 as a charging terminal for charging the battery 23 (see FIG. 2) is provided.

  For example, the terminal component 15 is provided in the housing 3 such that a part of the terminal component 15 is exposed from an opening 3f that opens to the second end 3n side (one end side in the longitudinal direction of the housing 3) of the side surface portion 3c. ing. Two terminal components 15 are provided corresponding to the two side surface portions 3c (the opening 3f and the terminal component 15 on the upper right side of the drawing are hidden by the housing 3 and are not shown).

  The charging stand 101 includes a charging case 103 and a power supply terminal 105 protruding from the charging case 103. The charging housing 103 is placed on a desk or the like with the placement surface 103a downward and substantially horizontal. A holding portion 103b for holding the mobile phone 1 stands by surrounding the inclined surface 103c at least on the lower side (right side of the drawing in FIG. 1) of the inclined surface 103c and the inclined surface 103c with respect to the placement surface 103a (horizontal plane). And a wall portion 103d provided.

  The power supply terminal 105 protrudes from the inner surface of the wall portion 103d by a spring (not shown) or the elastic force of the inside portion of the housing of the power supply terminal 105. A total of two power supply terminals 105 are provided on the left and right sides of the charging stand 101 (the power supply terminals 105 on the front side of the paper surface are hidden by the wall 103d and are not shown).

  The mobile phone 1 is placed on the holding portion 101b of the charging housing 103 with the back surface portion 3b facing the inclined surface 103c. At this time, the second end portion 3n side portion of the mobile phone 1 is fitted into the recess formed by the wall portion 103d. The side surface portion 3c of the mobile phone 1 faces the inner side surface of the wall portion 103d, and the power supply terminal 105 contacts the terminal component 15 by elastic force.

  FIG. 2 is an exploded perspective view of the mobile phone 1.

  The mobile phone 1 includes, in order from the front surface 3a side (the upper side in FIG. 2), a front case 5 constituting the front surface 3a side portion of the housing 3, an operation member 17 constituting the operation portion 11, and various electronic components. Are fixed to each other to form a shield module 19, an antenna member 21, a rear case 7, a battery 23, and a rear case 7, which constitute a portion of the rear surface 3 b of the housing 3. And a lid 9 constituting the portion.

  The front case 5, the rear case 7, and the lid 9 are each made of, for example, a nonconductive resin. The front case 5 and the rear case 7 are fixed to each other by screws (not shown), for example. Accordingly, the operation member 17, the shield module 19, and the antenna member 21 are sandwiched between the front case 5 and the rear case 7. The lid 9 is for inserting / removing the battery 23 into / from the housing 3. The lid 9 is fixed to the rear case 7 by, for example, a plurality of engaging portions 9a. As a result, the battery 23 attached to the recess formed on the back surface 3b side of the rear case 7 is prevented from falling off. Note that the opening 3 f is formed in the front case 5. Further, an opening 3k for exposing the operation member 17 is formed in the front case 5.

  The operation member 17 includes, for example, a plurality of key tops 16 and a key sheet 18 to which the plurality of key tops 16 are fixed. The plurality of key tops 16 are made of, for example, resin. The key sheet 18 is made of, for example, silicon rubber. The operation member 17 is also arranged between the plurality of key tops 16 and the key sheet 18 and has a frame-like member (mostly not shown by being hidden by the plurality of key tops 16) for suppressing the key sheet 18 from being lifted. I have. For example, the operation member 17 is placed on the shield module 19 and is held down by the front case 5 and fixed in the housing 3. Note that an engagement portion that engages with the housing 3 or the shield module 19 may be provided on the key sheet 18 or the frame-shaped member.

  The antenna member 21 is disposed in the second end 3n of the housing 3, for example. The antenna member 21 includes, for example, a base portion 21a formed of a nonconductive resin and a conductive antenna element 21b fixed to the base portion 21a. The base portion 21a is, for example, a long surface having a substantially L-shaped cross section with the short side direction of the housing 3 as a long direction, and an attachment surface that faces the inner surface of the second end surface 3e of the housing 3 21c. The antenna element 21b is composed of a conductive layer having a predetermined pattern stacked on the mounting surface 21c. The attachment surface 21 c and the antenna element 21 b extend over substantially the entire second end surface 3 e in the short direction of the housing 3, for example. The antenna member 21 is fixed to the housing 3 by, for example, the base 21 a being sandwiched between the shield module 19 and the rear case 7.

  FIG. 3 is an exploded perspective view of the shield module 19.

  The shield module 19 includes a main substrate 25, a frame 27, a display device 29 constituting the display unit 13, and a sub substrate 31 in order from the back surface portion 3b side (the lower side in the drawing of FIG. 3).

  The frame 27 is, for example, generally formed in a plate shape facing the inner side surface of the front portion 3 a of the housing 3 (inner side portion of the operation member 17). Further, the frame 27 is, for example, a plan view of the housing 3 so as to be arranged over a wide range with respect to the front portion 3a of the housing 3 (when viewed from a direction orthogonal to the front portion 3a). B) It has the same shape as the outline of the housing 3. That is, in this embodiment, it is formed in a substantially rectangular shape.

  The main board 25 is constituted by, for example, a rigid type printed board based on a hard resin. The main board 25 is, for example, a double-sided mounting type board on which various electronic components are mounted. The main board 25 has, for example, approximately half the area of the frame 27. For example, the main substrate 25 is fixed to the surface of the frame 27 on the rear case 7 side by screws.

  The display device 29 is constituted by, for example, a liquid crystal display device or an organic EL device. The display device 29 has, for example, approximately half the area of the frame 27. The display device 29 is fixed to the frame 27 by, for example, being fitted into a recess formed on the surface of the frame 27 on the front case 5 side. The display device 29 may be fixed to the frame 27 by an adhesive member such as a double-sided tape.

  The sub-board 31 is constituted by, for example, a single-sided mounting type FPC that mounts electronic components on a mounting surface 31p on the upper side in the drawing of FIG. The sub-board 31 is wound around the frame 27 by being bent at the connection portion 31c. That is, the sub board 31 has a front board part 31 a arranged on the front side of the frame 27 and a back board part 31 b arranged on the back side of the frame 27. The front substrate portion 31a is disposed with the mounting surface 31p facing the front portion 3a side (the inner portion of the operation member 17), and the back substrate portion 31b is disposed with the mounting surface 31p facing the back surface portion 3b. The front substrate portion 31a and the back substrate portion 31b have, for example, approximately half the area of the frame 27, and are fixed to the frame 27 by an adhesive member such as an adhesive or a double-sided tape.

  The front substrate portion 31 a is provided with, for example, a plurality of switches 33 that are operated via the operation member 17 and constitute the operation portion 11, and a plurality of LEDs 34 for illuminating the operation member 17. The plurality of switches 33 are constituted by, for example, dome switches that are turned on when the movable contact comes into contact with the fixed contact when pressed. The frame 27 has a placement surface 28 on which the front substrate portion 31a is placed. The mounting surface 28 is formed in a substantially flat shape, for example. Accordingly, the plurality of switches 33 are supported by the mounting surface 28 via the front substrate portion 31a, and the operation by pressing is performed reliably, and an operation feeling (click feeling) is also appropriately generated.

  The rear substrate portion 31b includes, for example, a slot component 35 for mounting an IC card (not shown), a connector 37 that connects the sub substrate 31 and the main substrate 25, a connection terminal 39 that is connected to the antenna member 21, and a telephone call The microphone 87 is provided.

  The microphone 87 is formed, for example, in a generally disk shape, and has a sound emitting surface 87a and a terminal surface on the back side thereof (not shown because it is in close contact with the back substrate portion 31b). A terminal (not shown) is provided on the terminal surface. The microphone 87 is constituted by, for example, a dynamic microphone, and has a coil connected to a terminal, a permanent magnet inserted through the coil, and a diaphragm fixed to the coil or the permanent magnet, although not particularly illustrated. ing. The vibration (sound) of the air input from the sound collection hole 3h is converted into an electrical signal via the diaphragm, permanent magnet, and diaphragm and output from the terminal.

  The rear substrate portion 31b has a microphone substrate portion 31e extending from a portion disposed and fixed on the surface of the shield case 27 on the rear case 7 side. The microphone 87 is mounted with the terminal surface facing the mounting surface 31p of the microphone substrate 31e. Mounting is performed, for example, by reflow soldering. The arrangement and fixing of the microphone 87 with respect to the frame 27 will be described later.

  The sub board 31 further includes a terminal board part 31d extending from two side edges (peripheral parts) of the front board part 31a. A terminal component 15 is mounted on each of the two terminal board portions 31d. The terminal component 15 is mounted with the back surface exposed from the opening 3f facing the mounting surface 31p of the sub-board 31. The terminal board portion 31d is arranged at a terminal arrangement portion 27a constituting a part of the side surface of the frame 27 by being bent at a substantially right angle with respect to the front board portion 31a (see also FIG. 2). The terminal arrangement portion 27a faces the inner side surface of the side surface portion 3c, and the mounting surface 31p of the terminal board portion 31d arranged on the terminal arrangement portion 27a also faces the inner side surface of the side surface portion 3c. The terminal board portion 31d and the terminal arrangement portion 27a are fixed to each other by an adhesive member such as an adhesive or a double-sided tape, for example.

  FIG. 4 is a perspective view of the frame 27 as viewed from the rear case 7 side. FIG. 5 is an exploded perspective view of the frame 27 as viewed from the front case 5 side. FIG. 6 is an exploded perspective view of the frame 27 as viewed from the rear case 7 side.

  The frame 27 includes a conductive frame member 45 and a nonconductive extension member 47.

  The frame member 45 constitutes, for example, a portion of the frame 27 on the first end 3m side (opposite side of the antenna member 21), and constitutes most of the frame 27. The frame member 45 is formed entirely of a conductive material such as metal, for example. Alternatively, the frame member 45 includes a non-conductive base such as a resin and a conductive film such as a metal film laminated on the surface of the base. The frame member 45 is preferably made entirely of metal in order to improve the strength of the entire mobile phone 1.

  The extension member 47 constitutes, for example, an end portion of the frame 27 on the second end portion 3n side. The extension member 47 is made of, for example, a non-conductive resin as a whole. In addition, it is preferable that the extension member 47 is comprised with resin containing glass for the intensity | strength improvement. The extension member 47 extends, for example, over the entire end (one side of the rectangle) of the frame member 45 on the second end 3n side, and the entire end of the frame 27 on the second end 3n side extends. It is composed. Accordingly, the extending member 47 is provided from a position facing the one side surface portion 3c to a position facing the other side surface portion 3c. And the terminal arrangement | positioning part 27a in which the above-mentioned terminal board | substrate part 31d is arrange | positioned is formed in the both ends of the longitudinal direction (short side direction of the housing | casing 3) of the extending member 47. As shown in FIG.

  The frame member 45 has a substantially flat first plane 28a (FIG. 5) on the front case 5 side. The extension member 47 has a substantially flat second plane 28b (FIG. 5) on the front case 5 side. The first plane 28a and the second plane 28b are continuous when the frame member 45 and the extension member 47 are fixed to each other, and constitute the mounting surface 28 on which the front substrate portion 31a is mounted (FIG. 2). .

  The frame member 45 and the extension member 47 are fixed as follows, for example. The extension member 47 is formed with a recess 47r (FIG. 5) on the first end 3m side. The end of the frame member 45 on the second end 3n side is fitted into the recess 47r. The screw 49 is inserted into a hole formed in the bottom of the recess 47r (the contact portion 47e that contacts the surface of the frame member 45 on the rear case 7 side) and is formed at the end of the frame member 45. Screwed into the female thread portion. The screw may be inserted into the frame member 45 and screwed into the extension member 47, or may be screwed into the bolt to sandwich the frame member 45 and the extension member 47 together with the bolt. Further, one or a plurality of screws 49 may be used. In the present embodiment, a plurality (three) of screws 49 are provided along the end (one side) of the frame member 45.

  FIG. 7 is an enlarged view of a region VII in FIG.

  The tip of the contact portion 47e protrudes on the opposite side (rear case 7 side) from the second plane 28b, and faces the arrangement direction of the frame member 45 and the extension member 47 (longitudinal direction of the housing 3). Two wall portions 47w are formed. On the other hand, the frame member 45 is formed with a first wall portion 45 w that protrudes on the opposite side (the rear case 7 side) from the first flat surface 28 a and faces the arrangement direction of the frame member 45 and the extension member 47. . The first wall portion 45w and the second wall portion 47w are in contact with each other. That is, the first wall portion 45w and the second wall portion 47w can transmit loads to each other.

  Note that the number of combinations of the first wall portion 45w and the second wall portion 47w and the position in the longitudinal direction of the housing 3 may be set as appropriate. In the present embodiment, a combination of the first wall portion 45 w and the second wall portion 47 w is provided between the plurality of screws 49. That is, in this embodiment, two combinations of the first wall portion 45w and the second wall portion 47w are provided. The height (position of the top portion) and the length (size in the short direction of the housing 3) of the first wall portion 45w and the second wall portion 47w are set to be equal to each other, for example. The thicknesses of the first wall portion 45w and the second wall portion 47w are set so that, for example, the bending rigidity is equal to each other. That is, in the present embodiment, the first wall portion 45w is slightly thinner than the second wall portion 47w.

  The extension member 47 is formed with a recess 47 c that is recessed on the rear case 7 side. A sound hole 47d communicating with the front case 5 is formed at the bottom of the recess 47c. The microphone 87 (FIG. 3) is fitted into the recess 47c with the sound emitting surface 87a facing the bottom of the recess 47c. Then, sound is output through the sound hole 47d.

  Most of the rear substrate portion 31b arranged on the rear case 7 side (the front side in FIG. 7) of the frame 27 is arranged with the mounting surface 31p facing the rear case 7, and the sound emitting surface 87a of the microphone 87 is It faces the same direction as the mounting surface 31p. However, the sound emitting surface 87a is directed to the front case 5 side (the back side of the paper in FIG. 7) by twisting the microphone substrate portion 31e.

  8 is a cross-sectional view in the direction of arrows VIII-VIII in FIG. However, in FIG. 8, members such as the front case 5 are appropriately omitted.

  In the longitudinal direction of the casing 3 (left and right direction in FIG. 8), the antenna member 21 is disposed on the second end 3n side of the frame member 45 and hardly overlaps the frame member 45. Further, the antenna element 21 b is disposed away from the frame member 45 in the longitudinal direction of the housing 3. That is, the antenna member 21 (antenna element 21b) is disposed at a position that is not easily affected by the conductive frame member 45 with respect to the radiation characteristics of the antenna.

  On the other hand, in the longitudinal direction of the housing 3, the extension member 47 (second plane 28 b) is disposed on the second end 3 n side of the frame member 45 and overlaps the antenna member 21. However, the extension member 47 is separated from the antenna element 21 b in the longitudinal direction of the housing 3. The front substrate portion 31a is disposed across the first plane 28a and the second plane 28b. That is, the second plane 28b extends the placement surface 28 on which the front substrate portion 31a is placed from the position indicated by the arrow y1 to the position indicated by the arrow y2.

  FIG. 9 is an enlarged side view showing the vicinity of the terminal arrangement portion 27a of the shield module 19 (viewed from the side surface portion 3c side). 9 shows the vicinity of the terminal arrangement portion 27a on the back side in FIG. 2 (not shown in FIG. 2 hidden behind the shield module 19) of the two terminal arrangement portions 27a.

  As shown in FIGS. 3 and 9, the terminal substrate portion 31d is formed in a generally rectangular shape as a whole, and from the two corners on the front end side (the side opposite to the front substrate portion 31a), the terminal substrate portion is formed. A locked portion 31g that protrudes in a direction orthogonal to the protruding direction of the portion 31d from the front substrate portion 31a is formed.

  On the other hand, as shown in FIG. 7, the terminal arrangement portion 27a (extension member 47) has a protruding portion 47a that protrudes from the mounting surface on which the terminal substrate portion 31d is stacked. For example, the protruding portion 47a is formed in a wall shape facing the longitudinal direction on both sides of the terminal arrangement portion 27a in the longitudinal direction of the housing 3. The protruding portion 47a has a locking portion 47b formed by forming a notch on the distal end side of the terminal substrate portion 31d and on the mounting surface side of the terminal substrate portion 31d.

  As shown in FIG. 9, the locked portion 31g of the terminal board portion 31d is fitted in the recess of the locking portion 47b and locked to the locking portion 47b. Specifically, the locking portion 47b engages with the locked portion 31g from the base (front substrate portion 31a) side to the distal end side of the terminal substrate portion 31d and mounts the terminal substrate portion 31d. Engage from the surface 31p side to the back side (from the side surface portion 3c side to the terminal arrangement portion 27a side). Thereby, since the movement of the terminal board portion 31d in the direction in which the bending is returned is restricted, the work for incorporating the subsequent shield module 19 into the housing 3 is facilitated.

  FIG. 10 is a perspective view of the terminal component 15. The upper side of the drawing in FIG. 10 is the side exposed from the opening 3 f to the outside of the housing 3, and the direction from the upper left side of the drawing to the lower right side (the longitudinal direction of the terminal component 15) is the longitudinal direction of the mobile phone 1. .

  The terminal component 15 is formed in a generally thin rectangular parallelepiped shape as a whole, and is provided with a contact surface 15a exposed from the opening 3f on one side in the thickness direction and connected to the terminal substrate portion 31d on the other side. A mounted surface 15c is provided. The terminal component 15 is disposed on the mobile phone 1 so that the longitudinal direction of the terminal component 15 coincides with the longitudinal direction of the mobile phone 1 (see also FIGS. 2 and 9). The mounted surface 15c is disposed so as to face the terminal substrate portion 31d, and is soldered to the terminal substrate portion 31d by reflow or the like.

  The terminal component 15 includes a sheet metal 41 and a resin member 43 held by the sheet metal 41. The sheet metal 41 covers the resin member 43. Specifically, the entire surface of the substantially rectangular resin member 43 on the contact surface 15a side, the entire side surface in the longitudinal direction, and a part (approximately half) on the mounted surface 15c side are covered. The contact surface 15 a and the mounted surface 15 c are constituted by a sheet metal 41. The resin member 43 contributes to improving the strength of the sheet metal 41 while reducing the weight of the terminal component 15 by being fitted inside the sheet metal 41.

  The sheet metal 41 is formed, for example, by pressing a single sheet metal. For example, by sliding the sheet metal 41 with respect to the resin member 43 in the direction indicated by the arrow y1, the resin member 43 is fitted and fixed in the sheet metal 41. The terminal component 15 may be formed by insert molding in which a metal mold 41 is filled with a molten resin in a state where the metal plate 41 is disposed in the metal mold.

  FIG. 11 is a block diagram showing the configuration of the signal processing system of the mobile phone 1.

  The mobile phone 1 includes a CPU 71, a memory 73, a communication processing unit 75, an acoustic processing unit 77, and an image processing unit 79. Each of these parts is constituted by, for example, an IC (not shown) provided on a circuit board (not shown) provided in the housing 3.

  The CPU 71 and the memory 73 function as a control unit that performs predetermined calculations based on signals from various units such as the operation unit 11 and executes control of various units such as the image processing unit 79.

  The communication processing unit 75 includes a high frequency circuit. The communication processing unit 75 performs acoustic communication and image data processed by the CPU 71 in order to communicate with other portable terminal devices and servers via a communication system (telephone network or the Internet) by wireless communication using radio waves. Are modulated and transmitted through the antenna member 21. In addition, the communication processing unit 75 demodulates a signal received via the antenna member 21 and outputs the demodulated signal to the CPU 71.

  The acoustic processing unit 77 converts the acoustic data from the CPU 71 into an electrical signal and outputs the electrical signal to the first speaker 83 for calling or the second speaker 85 that outputs a notification sound or the like. The first speaker 83 and the second speaker 85 convert the electrical signal from the sound processing unit 77 into sound and output it. On the other hand, the microphone 87 converts the input sound into an electrical signal and outputs it to the sound processing unit 77. The acoustic processing unit 77 converts the electrical signal from the microphone 87 into acoustic data and outputs it to the CPU 71.

  The image processing unit 79 converts the image data from the CPU 71 into an image signal and outputs it to a display unit such as the display unit 13. In addition, an imaging signal (image data) output from the imaging unit 89 (for example, provided on the back surface 3b side of the housing 3) is converted into image data of a predetermined format and output to the CPU 71.

  Each unit described above operates when power is supplied from the battery 23. The battery 23 is supplied with power from the power supply circuit 107 of the charging stand 101 via the power supply terminal 105, the terminal component 15, and the charging circuit 91, and stores the supplied power. For example, the power feeding circuit 107 converts AC power from a commercial power source into a DC voltage having an appropriate voltage and outputs the DC voltage to the power feeding terminal 105. For example, the charging circuit 91 supplies the power supplied from the power supply circuit 107 via the power supply terminal 105 and the terminal component 15 to the battery 23 as it is or converted into DC power having an appropriate voltage. Note that the division of roles between the power feeding circuit 107 and the charging circuit 91 may be set as appropriate. For example, the charging circuit 91 is provided on the main board 25 and / or the sub board 31.

  According to the above-described embodiment, the mobile phone 1 is a conductive material having the housing 3 from which the operation member 17 is exposed, and the first flat surface 28 a provided in the housing 3 and facing the inner portion of the operation member 17. The frame member 45, the antenna element 21b provided in the casing 3 in a predetermined direction (longitudinal direction of the casing 3) along the first plane 28a, and the antenna member 21 of the frame member 45. A non-conductive extending member 47 having a second plane 28b continuous to the first plane 28a and laminated on the first plane 28a and the second plane 28b, Sub-board 31 (front board portion 31a) having mounting surface 31p facing each other, a plurality of switches 33 provided on mounting surface 31p and operated via operation member 17, and antenna element of extension member 47 A terminal part 15 provided at a position different from the position facing the bets 21b, since it has, it is possible to reduce the size of the housing 3 and preferably the housing 3 inside of the component placement. That is, the conductive frame member 45 and the antenna element 21b are separated to improve the radiation characteristics of the antenna, while the mounting surface of the sub board 31 is extended to the antenna element 21b side by the extension member 47, and the housing 3 Therefore, it is possible to ensure a large area of the operation unit 11 without causing an increase in size. Furthermore, since the terminal component 15 is provided on the extension member 47, not only the placement surface of the sub-board 31 but also a placement area for other electronic components is newly secured. Moreover, since the extension member 47 is non-conductive, the terminal component 15 is preferably insulated.

  The frame member 45 protrudes toward the back side of the first plane 28a and has a first wall portion 45w facing the antenna element 21b side. The extension member 47 is the back side of the first plane 28a and the first side of the frame member 45. The first wall portion 45w is in contact with the antenna member side portion of the first wall portion 45w and is fixed to the frame member 45 with screws 49. The first wall 28w protrudes from the contact portion 47e to the back side of the first plane 28a. Since it has the part 45w and the 2nd wall part 47w which wall surfaces contact | abut, the bending rigidity of the flame | frame 27 becomes high and by extension, the bending rigidity of the mobile telephone 1 whole becomes high. Specifically, it is as follows. Since the extension member 47 is fixed to the frame member 45 by screws 49, the extension member 47 rotates with respect to the frame member 45 with the position of the screw 49 as a fulcrum. In other words, the bending rigidity of the frame 27 is weak at the position of the screw 49. However, when the first wall portion 45w and the second wall portion 47w come into contact with each other to suppress the rotation of the extension member 47 with respect to the frame member 45, the bending rigidity of the frame 27 is increased. As a result, for example, there is no need to provide a plurality of screws 49 in the longitudinal direction of the housing 3 to suppress the rotation of the extension member 47 with respect to the frame member 45, and the screws 49 are arranged in a row in the lateral direction of the housing 3. As a result, the extension member 47 elongated in the short direction of the housing 3 can be fixed to the frame member 45. In particular, when the entire side of the frame 27 is constituted by the extension member 47 as in the present embodiment, such improvement in bending rigidity is effective in improving the strength of the mobile phone 1.

  Since the electronic component provided in the extension member 47 is the terminal component 15 exposed from the opening 3 f formed in the housing 3, a component that is easily short-circuited is provided in the insulating extension member 47. In other words, the component arrangement in the housing 3 is suitably performed.

  The housing 3 has a pair of side surface portions 3c that are opposed to each other with the frame member 45 and the extension member 47 interposed therebetween on the sides of the first plane 28a and the second plane 28b and in the longitudinal direction of the housing 3. The extension member 47 is provided from a position facing the one side surface portion 3 c to a position facing the other side surface portion 3 c, and the terminal component 15 has both end surfaces facing the pair of side surface portions 3 c of the extension member 47 ( Since the terminal arrangement portions 27a) are respectively exposed from the openings 3f formed in the pair of side surface portions 3c, the two terminal components 15 are arranged apart from each other, and the insulation is improved. Further, since the terminal component 15 is provided on the frame 27, the lateral direction of the casing is simplified with a simple configuration as compared with the case where the terminal is exposed from the side of the casing by other methods such as providing a spring terminal on the casing. Can be reduced in size. In a normal frame, since the whole has conductivity, it is not generally attached to the terminal component 15, and when the terminal component 15 is attached, an increase in members for the purpose of insulation only occurs. .

  The sub-substrate 31 is a flexible substrate, and extends from the front substrate portion 31a disposed on the first plane 28a and the second plane 28b, and the periphery of the front substrate portion 31a, and extends to the front substrate portion 31a. A terminal board part 31d that is bent on the end surface (terminal arrangement part 27a) of the extension member 47 and the terminal component 15 is mounted on the terminal board part 31d. , At least one of the direction from the base side to the tip side of the terminal board portion 31d and the direction from the side face portion 3c to the terminal arrangement portion 27a with respect to the terminal board portion 31d (both in the embodiment) ), The terminal board portion 31d can be easily arranged on the terminal arrangement portion 27a. Further, since the extending member 47 is made of resin, it is easy to form the locking portion 47b.

  The cellular phone 1 further includes a microphone 87, and the extension member 47 is formed with a recess 47c in which the microphone 87 is disposed on the back side of the second plane 28b, and on the bottom surface of the recess 47c on the second plane 28b side. Since the sound hole 47d that communicates is formed, the microphone 87 can be disposed at the end of the housing 3, which is suitable for a call. Moreover, chatter noise is reduced as compared with the case where the microphone 87 is disposed on the metallic frame member 45.

  In the above embodiment, the mobile phone 1 is an example of the portable radio terminal of the present invention, the first plane 28a is an example of the first surface of the present invention, and the second plane 28b is the second plane of the present invention. The antenna element 21b is an example of the antenna of the present invention, the sub board 31 is an example of the key board of the present invention, the front board part 31a is an example of the switch arrangement part of the present invention, and the terminal The substrate portion 31d is an example of the extending portion of the present invention.

  The present invention is not limited to the above embodiment, and may be implemented in various aspects.

  The mobile electronic device is not limited to a mobile phone. For example, the portable electronic device may be a digital camera, a PDA, or a game machine. The casing is not limited to a straight type. For example, it may be a case in which two or more cases such as a foldable type, a horizontal turn type, and a slide type are connected so as to be relatively movable. Further, the casing is not limited to a substantially rectangular parallelepiped shape, and for example, the planar shape may be an elliptical shape. The side surfaces of the housing are not limited to those parallel to each other. For example, the arc portions facing each other of the casing having an elliptical planar shape may be side surfaces.

  The electronic component provided on the extension member is not limited to the terminal component. For example, an LED or a switch may be used. The terminal component is not limited to the charging terminal. For example, a terminal for transmitting and / or receiving electrical signals including various information such as acoustic information, image information, and sensor detection results between a portable electronic device and another device. Also good. Other devices are not limited to the charging stand. For example, the other device may be another portable electronic device having the same configuration as the portable electronic device.

  The antenna is not limited to an antenna that performs wireless communication using radio waves. For example, short-range wireless communication using magnetism may be performed. The switch is not limited to a push-type switch. For example, the switch may be an electrostatic touch sensor. As shown in the embodiment, the operation member is not limited to one that operates a plurality of switches with one operation member. For example, in the embodiment, the key sheet 18 may be omitted, and the plurality of switches 33 may be individually operated by the plurality of key tops 16. The electroacoustic transducer is not limited to a microphone. A speaker that converts an electrical signal into sound may be used, or a microphone function and a speaker function may be used.

  The predetermined direction, which is the direction in which the antenna is separated from the frame member, is not limited to the longitudinal direction of the housing. For example, the short direction may be used.

1 is an external perspective view of a mobile phone according to an embodiment of the present invention. The disassembled perspective view of the mobile telephone of FIG. The disassembled perspective view of the shield module of FIG. The perspective view of the flame | frame of the shield module of FIG. The disassembled perspective view of the flame | frame of FIG. FIG. 6 is an exploded perspective view of the frame of FIG. 4 in a direction different from that of FIG. 5. The enlarged view of the area | region VII of FIG. Sectional drawing of the VIII-VIII line arrow direction of FIG. The side view which shows the terminal component vicinity of the shield module of FIG. The perspective view which shows the terminal component of the mobile telephone of FIG. The block diagram which shows the structure of the signal processing system of the mobile telephone of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Mobile telephone (mobile radio apparatus), 3 ... Housing | casing, 15 ... Terminal component (electronic component), 17 ... Operation member, 21 ... Antenna member, 21a ... Antenna element (antenna), 28a ... 1st plane (1st Surface), 28b ... 2nd plane (2nd surface), 31 ... sub-board | substrate, 33 ... switch, 45 ... frame member, 47 ... extension member.

Claims (6)

A housing in which the operation member is exposed;
A conductive frame member provided in the housing and having a first surface facing the inner side of the operation member;
An antenna provided in the casing and spaced apart from the frame member in a predetermined direction along the first surface;
A non-conductive extension member fixed to an end of the frame member on the antenna side and having a second surface continuous with the first surface;
A key board that is stacked on the first surface and the second surface, has a mounting surface facing the inner side of the operation member, and a plurality of switches that are operated via the operation member are arranged on the mounting surface. When,
An electronic component provided in the extension member and disposed in the housing;
I have a,
The antenna and the extension member are in a positional relationship in which a part of each is opposed to each other,
The electronic component is a portable wireless device provided in a region of the extension member that does not face the antenna . The frame member has a first wall portion that protrudes toward the back side of the first surface and faces the antenna side,
The extension member is
An abutting portion that abuts a portion of the frame member on the back side of the first surface and on the antenna side of the first wall portion, and is fixed to the frame member with a screw;
The contact portion protrudes from the rear side of the first surface, the portable radio apparatus according to claim 1, wherein the first wall portion and the wall surfaces having a second wall portion which abuts. The electronic component is a portable radio apparatus according to claim 1 or 2 is a terminal component which is exposed from an opening formed in the housing. The housing includes a pair of side portions facing each other with the frame member and the extension member sandwiched between the first surface and the second surface and in the predetermined direction.
The extension member is provided from a position facing one side surface part to a position facing the other side surface part,
The portable radio apparatus according to claim 3 , wherein the terminal component is provided on each of both end faces of the extension member facing the pair of side surface parts, and is exposed from the openings formed in the pair of side surface parts. . The key substrate is a flexible substrate, and extends from the switch arrangement portion in which the plurality of switches are arranged over the first surface and the second surface, and the periphery of the switch arrangement portion. And an extended portion that is bent with respect to the switch arrangement portion and arranged on the end face,
The terminal component is mounted on the extension part,
The portable wireless device according to claim 4 , wherein the extending member has a locking portion that can be engaged with the extending portion so as to maintain a bent state. An electroacoustic transducer,
The extension member has a recess formed in the back side of the second surface where the electroacoustic transducer is disposed, and a sound hole communicating with the second surface is formed in a bottom surface of the recess. The portable wireless device according to any one of 1 to 5 .

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