JP4788623B2 - Wireless device - Google Patents

Description

  The present invention relates to a radio apparatus suitable for application to a mobile phone, a cordless phone, a wireless radio communication PC card, and the like.

Conventionally, as this type of wireless device, for example, Patent Document 1 has a device main body in which first and second opening housings are integrated with a frame-like rubber packing so that the opening sides are integrated, and rubber. There is disclosed a portable radio telephone in which an antenna made of a U-shaped metal rod is disposed in a packing. This portable radio telephone is intended to facilitate the mounting of an antenna and the mounting of a rubber packing.
Japanese Patent Laid-Open No. 06-037876 JP 2002-280821 A JP 2003-315475 A JP 2006-109081 A JP 2001-168620 A

  In the portable wireless telephone described in Patent Document 1, the end of the antenna is connected to the transmission / reception circuit in the apparatus body by a coaxial connector or soldering, but the antenna is connected to the transmission / reception circuit by an easier means. It is requested.

  In view of the above, an object of the present invention is to provide a wireless device that can easily perform electrical connection between an antenna disposed in a packing and a transmission / reception circuit.

  The present invention has a device main body in which the first and second opening housings are integrated with the opening side aligned through a packing, and an antenna is disposed in the packing, wherein the packing includes the antenna In addition, a packing material layer is provided on both surfaces of a wiring board provided with a through-hole serving as a feeding point for the antenna, excluding at least the through-hole portion, and can be fitted into the through-hole in the apparatus main body. The connector is arranged.

  According to the present invention, the packing is configured by providing a packing material layer on both sides of the antenna and a wiring board provided with a through hole serving as a feeding point of the antenna, except at least the through hole portion, Since the connector that can be fitted into the through hole is arranged, the antenna and the transmission / reception circuit can be easily electrically connected via the through hole and the connector.

(First embodiment)
FIG. 1 is a schematic perspective view of a first embodiment of the present invention. In FIG. 1, reference numeral 1 denotes an apparatus main body. The apparatus main body 1 is formed by integrating opening housings 2 and 3 having an opening on one side and aligning the opening side through a frame-shaped packing 4. In the first embodiment of the invention, an L-shaped dipole antenna 5 is arranged inside a packing 4.

  FIG. 2 is a schematic exploded perspective view of the first embodiment of the present invention. The open housing 2 has a rectangular front surface portion 6, a rectangular annular peripheral edge portion 7 provided in a peripheral portion of the front surface portion 6, and claws 8 </ b> _ <b> 1 to 8 </ b> _ <b> 6 provided so as to protrude from the peripheral edge portion 7. The end surface 9 of the peripheral edge 7 is flush with the side facing the front surface 6 being an opening.

  The open housing 3 includes a rectangular back surface portion 10 and a rectangular annular peripheral edge portion 11 provided in a peripheral portion of the back surface portion 10. The end surface 12 of the peripheral edge portion 11 is flush with the back surface portion 10. The opposite side is an opening.

  In addition, grooves 13_1 to 13_6 for engaging the claws 8_1 to 8_6 of the opening casing 2 are provided on the outer wall of the peripheral edge portion 11 of the opening casing 3, and the claws 8_1 to 8_6 of the opening casing 3 are provided. By engaging with the grooves 13 </ b> _ <b> 1 to 13 </ b> _ <b> 6 of the opening housing 3, the opening housings 2 and 3 are integrated so that the end surface 9 of the peripheral edge portion 7 and the end surface 12 of the peripheral edge portion 11 abut each other via the packing 4. Thus, the apparatus main body 1 is configured.

  Reference numeral 14 denotes a printed wiring board on which a transmission / reception circuit and the like are mounted. The printed wiring board 14 is fixed to the front surface portion 6 of the open housing 2 via a predetermined fixing member. An L-type spring connector 15 is mounted on the printed wiring board 14 for electrical connection between the L-type dipole antenna 5 disposed inside the packing 4 and the transmission / reception circuit.

  FIG. 3 is a schematic exploded perspective view showing the packing 4 and the printed wiring board 14. The packing 4 is configured by providing annular and belt-like packing material layers 17 and 18 on both surfaces of an annular flexible printed wiring board 16 having a rectangular outer shape and a hexagonal inner shape. These packing material layers 17 and 18 can be formed, for example, by applying an insulating material such as rubber or synthetic resin to both surfaces of the flexible printed wiring board 16 in a ring shape and a belt shape.

  In FIG. 3, a portion surrounded by a broken line 19 is a schematic plan view of a portion surrounded by a broken line 20 in the flexible printed wiring board 16. On the flexible printed wiring board 16, the L-type dipole antenna 5 is formed of copper foil with the corner portion 21 of the flexible printed wiring board 16 as the center.

  The L-type dipole antenna 5 includes antenna elements 23 and 24 having the same length. The antenna element 23 is disposed along the short side portion 25 of the flexible printed wiring board 16, and the antenna element 24 is disposed along the long side portion 26 of the flexible printed wiring board 16.

  The flexible printed wiring board 16 has a through-hole forming portion 27 in which the packing material layers 17 and 18 are not formed at the inner corner of the portion where the L-shaped dipole antenna 5 is provided. Through holes 28 and 29 are formed in the portion 27.

  The through hole 28 is connected to the antenna element 23 and serves as a feeding point for the antenna element 23. The through hole 29 is connected to the antenna element 24 and serves as a feeding point for the antenna element 24.

  FIG. 4 is a schematic view showing a connection state between the through holes 28 and 29 and the spring connector 15. (A) is a schematic plan view showing a part of the packing 4, and (B) is a view of the through holes 28 and 29 and the spring connector 15 viewed from the side. However, in (B), the portions of the through holes 28 and 29 are cross sections.

  In the spring connector 15, 30 is a pedestal portion, 31 and 32 are cylindrical portions, and 33 and 34 are movable pins of a conductor. The pedestal 30 is fixed to the printed wiring board 14. The cylindrical portions 31 and 32 are fixed to the pedestal portion 30, and a compression coil spring is disposed inside.

  The movable pin 33 is configured to be movable with the cylindrical portion 31 as a guide path under the pressure of the compression coil spring in the cylindrical portion 31. The movable pin 34 is configured to be movable with the cylindrical portion 32 as a guide path under the pressure of the compression coil spring in the cylindrical portion 32.

  FIG. 5 is a schematic partial side view of the first embodiment of the present invention. Here, when the opening casings 2 and 3 are made of an insulator coated with a conductor or a paint containing a conductive substance, the L-type dipole antenna 5 is affected by the opening casings 2 and 3, and the characteristics thereof are: This differs depending on the distance LB between the antenna elements 23 and 24 and the open casings 2 and 3.

  FIGS. 6 to 8 show the L-type when the open housings 2 and 3 are made of metal, the length LA of the antenna elements 23 and 24 is 3 cm, and the L-type dipole antenna 5 is an antenna for the 2.5 GHz band. FIG. 6 is a characteristic diagram of the dipole antenna 5, in which FIGS. 6 to 8A are Smith charts and FIGS. 6 to 8B are diagrams illustrating a standing wave ratio (VSWR).

  However, in FIG. 6, when the interval LB between the opening casings 2 and 3 and the antenna elements 23 and 24 is 0.1 mm, FIG. 7 illustrates that the interval LB between the opening casings 2 and 3 and the antenna elements 23 and 24 is 1. In the case of 0.5 mm, FIG. 8 shows the case where the distance LB between the open casings 2 and 3 and the antenna elements 23 and 24 is set to 3.0 mm.

  Here, even when the length LA of the antenna elements 23 and 24 is 3 cm and the L-shaped dipole antenna 5 is an antenna for a 2.5 GHz band, the opening housings 2 and 3 are made of metal. When the distance LB between the antenna elements 23 and 24 and the open casings 2 and 3 is set to 1.5 mm or more, the standing wave ratio can be set within 3.0. In addition, when the width LC of the antenna elements 23 and 24 is 1 mm or more, an antenna bandwidth of 500 MHz can be ensured.

  As described above, according to the first embodiment of the present invention, the L-type dipole antenna 5 is formed on the flexible printed wiring board 16 and the packing material layers 17 and 18 are provided on both surfaces of the flexible printed wiring board 16. The spring connector 15 that constitutes the packing 4, further includes through holes 28 and 29 that serve as feeding points of the L-shaped dipole antenna 5 in the flexible printed wiring board 16, and the through holes 28 and 29 can be fitted into the printed wiring board 14. Is supposed to be placed.

  As a result, the through-holes 28 and 29 of the flexible printed wiring board 16 are fitted to the movable pins 33 and 34 of the spring connector 15, thereby electrically connecting the L-shaped dipole antenna 5 and the transmission / reception circuit on the printed wiring board 14. Can be easily performed.

  Further, according to the first embodiment of the present invention, since the L-shaped dipole antenna 5 is provided as an antenna, the opening housings 2 and 3 are made of an insulator coated with a conductor or a paint containing a conductive material. Even so, when the distance LB between the antenna elements 23 and 24 and the open housings 2 and 3 is set to 1.5 mm or more, good antenna characteristics can be obtained.

(Second Embodiment)
FIG. 9 is a schematic exploded perspective view showing a packing and a printed wiring board provided in the second embodiment of the present invention. In FIG. 9, portions corresponding to FIG. 2 and FIG.

  In the second embodiment of the present invention, the flexible printed wiring board 16 includes two L-shaped dipole antennas 5 each having two corners 21 and 35 on the diagonal line of the flexible printed wiring board 16 as central portions. 36 is arranged. Reference numerals 37 and 38 denote antenna elements of the L-type dipole antenna 36, 39 denotes a through hole that forms a feeding point of the antenna element 37, and 40 denotes a through hole that forms a feeding point of the antenna element 38.

  In addition, L-type spring connectors 15 and 41 are mounted on the printed wiring board 14 so as to correspond to the L-type dipole antennas 5 and 36. Others are the same as in the first embodiment of the present invention.

  According to the second embodiment of the present invention, the same effect as that of the first embodiment of the present invention can be obtained, and the L-shaped dipole antennas 5 and 36 are provided on two diagonal lines of the flexible printed wiring board 16. Since the corner portions 21 and 35 are configured as the central portions, a high space diversity effect can be obtained.

(Third embodiment)
FIG. 10 is a schematic exploded perspective view showing a packing and a printed wiring board provided in the third embodiment of the present invention. In FIG. 10, parts corresponding to those in FIG.

  In the third embodiment of the present invention, in addition to the L-shaped dipole antennas 5 and 36 included in the second embodiment of the present invention, two corners on the diagonal of the flexible printed wiring board 16 are provided on the flexible printed wiring board 16. Two L-shaped dipole antennas 44 and 45 having the portions 42 and 43 as the central portions are arranged.

  Reference numerals 46 and 47 denote antenna elements of the L-type dipole antenna 44, 48 denotes a through hole that forms a feeding point of the antenna element 46, and 49 denotes a through hole that forms a feeding point of the antenna element 47. Reference numerals 50 and 51 denote antenna elements of the L-type dipole antenna 45, 52 denotes a through hole that forms a feeding point of the antenna element 50, and 53 denotes a through hole that forms a feeding point of the antenna element 51.

  In addition, L-type spring connectors 54 and 55 are mounted on the printed wiring board 14 so as to correspond to the L-type dipole antennas 44 and 45. About others, it has comprised similarly to 2nd Embodiment of this invention.

  According to the third embodiment of the present invention, the same effects as those of the first embodiment of the present invention can be obtained, and the four L-shaped dipole antennas 5, 36, 44, 45 can be connected to the flexible printed wiring board 16. Since the corner portions 21, 35, 42, and 43 are arranged as the central portions, a high space diversity effect can be obtained.

1 is a schematic perspective view of a first embodiment of the present invention. 1 is a schematic exploded perspective view of a first embodiment of the present invention. 1 is a schematic exploded perspective view showing a packing and a printed wiring board included in a first embodiment of the present invention. It is the schematic which shows the connection state of the through hole and spring connector with which 1st Embodiment of this invention is provided. It is a schematic partial side part of 1st Embodiment of this invention. It is a characteristic view of the L-type dipole antenna with which 1st Embodiment of this invention is provided. It is a characteristic view of the L-type dipole antenna with which 1st Embodiment of this invention is provided. It is a characteristic view of the L-type dipole antenna with which 1st Embodiment of this invention is provided. It is a schematic exploded perspective view which shows the packing and printed wiring board with which 2nd Embodiment of this invention is provided. It is a schematic exploded perspective view which shows the packing and printed wiring board with which 3rd Embodiment of this invention is provided.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Apparatus main body 2, 3 ... Opening casing 4 ... Packing 5 ... L-shaped dipole antenna 6 ... Front part 7 ... Peripheral part 8_1-8_6 ... Claw 9 ... End face 10 ... Back part 11 ... Peripheral part 12 ... End face 13_1-13_6 ... groove 14 ... printed wiring board 15 ... spring connector 16 ... flexible printed wiring board 17, 18 ... packing material layer 23, 24 ... antenna element 27 ... through hole forming part 28,29 ... through hole 30 ... pedestal 31,32 ... cylinder Shaped portion 33, 34 ... movable pin 36 ... L-type dipole antenna 37, 38 ... antenna element 39, 40 ... through hole 41 ... spring connector 44, 45 ... L-type dipole antenna 46, 47 ... antenna element 48, 49 ... through hole 50, 51 ... Antenna element 52, 53 ... Through hole 54, 55 ... Spring joint Necta

Claims (4)

In a wireless device having a device body in which the first and second opening housings are integrated with the opening side aligned through a packing, and an antenna is disposed in the packing,
The packing is configured by providing a packing material layer on both surfaces of the antenna and a wiring board provided with a through hole serving as a feeding point of the antenna, except for at least a portion of the through hole. A wireless device comprising a connector that can be fitted into a hole. The packing has a frame shape,
The radio apparatus according to claim 1, wherein an L-shaped dipole antenna centering on a corner of the packing is disposed as the antenna. The packing has a frame shape,
2. The radio apparatus according to claim 1, wherein at least two L-shaped dipole antennas each having at least two corners on a diagonal line of the packing are arranged as the antennas. The first and second open housings are made of an insulator coated with a conductor or a conductive material containing a conductive substance,
4. The wireless device according to claim 1, wherein the antenna is disposed so as to be separated from the first and second open housings by 1.5 mm or more.

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