WO2006035592A1 - 携帯無線機 - Google Patents
携帯無線機 Download PDFInfo
- Publication number
- WO2006035592A1 WO2006035592A1 PCT/JP2005/016736 JP2005016736W WO2006035592A1 WO 2006035592 A1 WO2006035592 A1 WO 2006035592A1 JP 2005016736 W JP2005016736 W JP 2005016736W WO 2006035592 A1 WO2006035592 A1 WO 2006035592A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit board
- ground
- coaxial cable
- casing
- case
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0067—Devices for protecting against damage from electrostatic discharge
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
Definitions
- the present invention includes a liquid crystal display element in an upper casing, a power source and a power supply darnd in a lower casing, and protects the liquid crystal display element provided in the upper casing and a circuit in the upper casing from static electricity.
- the present invention relates to a portable radio configured as described above.
- noise filters for preventing the intrusion of static electricity.
- a through-hole is provided in an electromagnetic wave absorbing sheet in which a soft magnetic substance powder is dispersed in a rubber or plastic matrix.
- Attach the filter substrate to the surface of the electromagnetic wave absorbing sheet, and attach the Gnd (ground) substrate to the back surface of the electromagnetic wave absorbing sheet.
- the filter substrate is a flexible substrate with a conductive material layer on one surface. It is the board
- the Gnd substrate is a substrate in which a Gnd pattern is formed on another flexible substrate.
- a connector having signal pins and Gnd pins is inserted into the through hole of the electromagnetic wave absorbing sheet.
- Electromagnetic wave absorption pattern ZGnd pattern forms a filter equivalent circuit, which becomes a noise filter and prevents the intrusion of static electricity (for example, patent documents) [0006]
- the following are known as antistatic means for preventing the inflow of static electricity. That is, an antistatic layer is formed on the surface of the polarizing plate that is grounded on the upper surface of the liquid crystal display element portion, and the antistatic layer is connected to the ground pad of the printed circuit board through a metal frame, thereby obtaining a liquid crystal display element.
- Patent document 1 JP 2001-308580 A
- Patent Document 2 JP-A-5-188388
- the present invention has been made in view of the above circumstances, and an object thereof is to provide a portable radio device that can reliably prevent static electricity from entering the liquid crystal display element and the circuit in the upper housing. .
- the portable wireless device of the present invention is connected to each other in a stacked state, and is capable of changing relative positions in a substantially staircase pattern, and is housed in the upper case, and includes a liquid crystal
- An upper circuit board connected to the display element a lower circuit board housed in the lower casing, an upper connector and a lower connector provided on the upper circuit board and the lower circuit board, respectively, the upper connector and
- a coaxial cable that electrically connects the upper circuit board and the lower circuit board by being connected to the lower connector, and is used as a line force signal line passing through the center of the coaxial cable, It is used as a ground, and the outer skin force of the coaxial cable is electrically connected to the upper casing and is also electrically connected to the ground of a power source provided in the lower casing.
- the outer sheath of the coaxial cable is electrically connected to the upper casing and is also electrically connected to the ground of the power source provided in the lower casing.
- the power supply ground is at 0 (zero) potential.
- the upper case comes into contact with the user and enters the upper case.
- the static electricity is released to the ground of the power supply of the lower housing through the outer sheath of the coaxial cable, and the static electricity is reliably prevented from entering the liquid crystal display element and the circuit in the upper housing.
- FIG. 1 is an exploded perspective view showing an upper housing of a portable wireless device according to the present invention.
- FIG. 2 is an exploded perspective view showing a lower housing of the portable wireless device according to the present invention.
- FIG. 3 is a cross-sectional view showing a coaxial cable used in the portable wireless device according to the present invention.
- the portable wireless devices 10 of the first embodiment are stacked on each other.
- An upper casing 11 and a lower casing 12 are provided which are connected to each other and whose relative positions can be changed substantially stepwise.
- Upper casing 11 is composed of upper casing upper case 13 and upper casing lower case (display case) 14, and upper casing upper case 13 and upper casing lower case 14 are respectively It is made of conductive material such as magnesium.
- the upper casing upper case 13 is provided with a liquid crystal display element 16 via a display element holder 15, and the liquid crystal display element 16 includes an upper circuit board (mainly a display system and an audio output system) 17. Terminal is electrically connected.
- an upper circuit board mainly a display system and an audio output system
- a circuit pattern is formed on the upper surface 17A of the upper circuit board 17, and the liquid crystal display element 16 is electrically connected to the circuit pattern.
- the display surface 16A of the liquid crystal display element 16 faces the opening 14A of the upper case lower case 14 in a state where the upper case lower case 14 is assembled to the upper case upper case 13.
- the upper connector 18 is electrically connected to the circuit pattern of the upper circuit board 17, and a conductive material for grounding (hereinafter referred to as “upper ground member”) is provided on the upper surface 18 A of the housing of the upper connector 18. 19 is provided.
- the upper ground member 19 is electrically connected to the conductive upper case 13 via the upper spring member 20 with the upper case lower case 14 assembled to the upper case upper case 13.
- the display element holder 15, the liquid crystal display element 16, the upper circuit board 17, the upper connector 18, the upper ground member 19 and the upper spring member 20 are an upper casing upper case 13 and an upper casing lower casing.
- the housing 14 is accommodated in a space formed by assembling the housing 14, that is, a space in the upper housing 11.
- the lower casing 12 is composed of a lower casing upper case 22 and a lower casing lower case (key surface side case) 23.
- the lower circuit board 24 is accommodated in the space formed by assembling the lower case upper case 22 and the lower case lower case 23.
- a circuit pattern is formed on the upper surface 24A of the lower circuit board 24, and terminals of the lower connector 25 are electrically connected to the circuit pattern.
- a conductive material for grounding (hereinafter referred to as ⁇ lower 26) is provided.
- This lower ground member 26 has a ground (28A) for a battery (power supply) 28 via a lower conductive plate 27 in a state where the lower case 23 for the lower case is assembled to the upper case 22 for the lower case. Electrically connected to
- the battery 28 is electrically connected to the circuit pattern of the lower circuit board 24.
- the lower circuit board 24, the lower connector 25, the lower ground member 26, the lower conductive plate 27, and the battery 28 are a space formed by assembling the lower casing upper case 22 and the lower casing lower case 23, that is, The housing 12 is accommodated in the space inside the lower housing 12.
- the upper connector 18 and the lower connector 25 are electrically connected by a coaxial cable 30.
- the coaxial cable 30 is used as a signal line by connecting a line 31 passing through the center shown in FIG. 3 to the terminal of the upper connector 18 and the terminal of the lower connector 25, and as a signal-dedicated ground. Used.
- signal ground This ground is hereinafter referred to as “signal ground”.
- the coaxial cable 30 includes an outer skin 32 formed of a conductive material, and one end portion 32A (see FIG. 1) of the outer skin 32 is electrically connected to the upper ground member 19, The other end 32B (see FIG. 2) of the outer skin 32 is electrically connected to the lower ground member 26.
- the outer skin 32 of the coaxial cable 30 is electrically connected to the upper housing 11 and grounded (grounded) to the ground 28 A of the battery 28 provided in the lower housing 12.
- the outer skin 32 of the coaxial cable 30 becomes a ground, and this ground is hereinafter referred to as “field ground”.
- ground 28A of the battery 28 is also connected to the signal ground, the signal ground and the field ground are connected at one point here.
- the signal ground is not connected to the conductive upper case 13.
- the field ground is a ground separated from the signal ground.
- the outer skin 32 of the coaxial cable 30 is electrically connected to the upper housing 11 and is also electrically connected to the ground 28 A of the battery 28 provided in the lower housing 12.
- the ground 28A of the battery 28 is at 0 (zero) potential.
- the upper housing 11 comes into contact with a user (not shown), and static electricity enters from the upper housing 11.
- the intruding static electricity is released to the ground 28A of the battery 28 of the lower casing through the outer shell 32 of the coaxial cable 30. This reliably prevents static electricity from entering the liquid crystal display element 16.
- the present invention is suitable for application to a portable wireless device having a liquid crystal display element in the upper housing and a power source and a power supply darnd in the lower housing.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Liquid Crystal (AREA)
- Telephone Set Structure (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Multi-Conductor Connections (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/575,999 US20080051159A1 (en) | 2004-09-28 | 2005-09-12 | Portable Radio |
EP05782388A EP1802190A1 (en) | 2004-09-28 | 2005-09-12 | Portable radio |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-281083 | 2004-09-28 | ||
JP2004281083A JP2006100319A (ja) | 2004-09-28 | 2004-09-28 | 携帯無線機 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006035592A1 true WO2006035592A1 (ja) | 2006-04-06 |
Family
ID=36118744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/016736 WO2006035592A1 (ja) | 2004-09-28 | 2005-09-12 | 携帯無線機 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080051159A1 (ja) |
EP (1) | EP1802190A1 (ja) |
JP (1) | JP2006100319A (ja) |
CN (1) | CN101032197A (ja) |
WO (1) | WO2006035592A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4754410B2 (ja) * | 2006-05-30 | 2011-08-24 | 京セラ株式会社 | 携帯電子機器 |
DE102007002900B4 (de) * | 2006-07-19 | 2014-10-23 | Lg Electronics Inc. | Mobiltelefon |
DE102007052845B4 (de) * | 2006-11-23 | 2016-06-09 | Optis Cellular Technology, LLC (n. d. Ges. d. Staates Delaware) | Kommunikationsendgerät |
JP5063186B2 (ja) * | 2007-05-23 | 2012-10-31 | 京セラ株式会社 | 携帯端末装置 |
JP5320801B2 (ja) * | 2008-04-11 | 2013-10-23 | 株式会社Jvcケンウッド | 電子機器及びそのノイズ遮蔽方法 |
JP5183390B2 (ja) * | 2008-09-24 | 2013-04-17 | 三菱電機株式会社 | 電子機器 |
CN101963298B (zh) * | 2009-07-24 | 2013-01-02 | 友达光电股份有限公司 | 背光模组 |
JP5950204B2 (ja) * | 2012-09-28 | 2016-07-13 | パナソニックIpマネジメント株式会社 | 無線通信モジュール |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56105267U (ja) * | 1980-01-16 | 1981-08-17 | ||
JPH01276794A (ja) * | 1988-04-28 | 1989-11-07 | Fujitsu Ltd | 信号ケーブルのシールドアース接続構造 |
JPH0570956U (ja) * | 1992-03-03 | 1993-09-24 | セイコーエプソン株式会社 | 操作パネルユニット |
JPH11185991A (ja) * | 1997-12-25 | 1999-07-09 | Casio Comput Co Ltd | 電子機器 |
JP2003018264A (ja) * | 2001-06-29 | 2003-01-17 | Denso Corp | 無線通信装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3783321A (en) * | 1972-03-23 | 1974-01-01 | Adams Russel Co Inc | Coaxial connector |
JP3739641B2 (ja) * | 2000-04-19 | 2006-01-25 | 富士通株式会社 | 折りたたみ型携帯機 |
US7356369B2 (en) * | 2003-10-02 | 2008-04-08 | Medtronic, Inc. | Z-axis assembly of medical device programmer |
-
2004
- 2004-09-28 JP JP2004281083A patent/JP2006100319A/ja not_active Withdrawn
-
2005
- 2005-09-12 CN CNA200580032880XA patent/CN101032197A/zh not_active Withdrawn
- 2005-09-12 US US11/575,999 patent/US20080051159A1/en not_active Abandoned
- 2005-09-12 EP EP05782388A patent/EP1802190A1/en not_active Withdrawn
- 2005-09-12 WO PCT/JP2005/016736 patent/WO2006035592A1/ja not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56105267U (ja) * | 1980-01-16 | 1981-08-17 | ||
JPH01276794A (ja) * | 1988-04-28 | 1989-11-07 | Fujitsu Ltd | 信号ケーブルのシールドアース接続構造 |
JPH0570956U (ja) * | 1992-03-03 | 1993-09-24 | セイコーエプソン株式会社 | 操作パネルユニット |
JPH11185991A (ja) * | 1997-12-25 | 1999-07-09 | Casio Comput Co Ltd | 電子機器 |
JP2003018264A (ja) * | 2001-06-29 | 2003-01-17 | Denso Corp | 無線通信装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2006100319A (ja) | 2006-04-13 |
US20080051159A1 (en) | 2008-02-28 |
CN101032197A (zh) | 2007-09-05 |
EP1802190A1 (en) | 2007-06-27 |
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