CN1365600A - 便携无线电装置 - Google Patents

便携无线电装置 Download PDF

Info

Publication number
CN1365600A
CN1365600A CN01800675A CN01800675A CN1365600A CN 1365600 A CN1365600 A CN 1365600A CN 01800675 A CN01800675 A CN 01800675A CN 01800675 A CN01800675 A CN 01800675A CN 1365600 A CN1365600 A CN 1365600A
Authority
CN
China
Prior art keywords
loud speaker
radio apparatus
portable radio
radio circuit
shielding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN01800675A
Other languages
English (en)
Other versions
CN1230059C (zh
Inventor
口石幸治
猪股阳二
樋口俊洋
芳贺秀夫
石原崇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of CN1365600A publication Critical patent/CN1365600A/zh
Application granted granted Critical
Publication of CN1230059C publication Critical patent/CN1230059C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

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
    • H05K9/0007—Casings
    • H05K9/002—Casings with localised screening
    • H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
    • H05K9/0037—Housings with compartments containing a PCB, e.g. partitioning walls
    • 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
    • H04B1/3827—Portable transceivers
    • H04B1/3833—Hand-held transceivers
    • H04B1/3838—Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use
    • 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
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • 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
    • H05K9/0007—Casings
    • H05K9/002—Casings with localised screening
    • H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
    • 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
    • H05K9/0007—Casings
    • H05K9/0041—Ventilation panels having provisions for screening

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Set Structure (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Transceivers (AREA)
  • Structure Of Receivers (AREA)

Abstract

一种便携无线电装置具有设置在印刷电路板(5)上的无线电电路(9)、设置在后盖(2)上的扬声器、以及设置成覆盖无线电电路(9)的屏蔽盒(10)。在屏蔽盒(10)内,具有不会影响屏蔽性能的尺寸的通气孔(10A)设置在扬声器(8)后部附近。

Description

便携无线电装置
                      技术领域
本发明涉及一种便携无线电装置，如便携电话机，并尤其涉及一种具有改进的扬声器音质的便携无线电装置。
                      背景技术
在诸如便携电话机的便携无线电装置中，壳体被做得越来越紧凑并外形越来越小，以便提高便携性。从而，已经作出努力以在壳体内有限空间中以高密度方式安装无线电电路、扬声器、接收器和LCD(液晶显示器)模块。
总之，当扬声器后部存在的空间体积较大时，扬声器易于振动。在便携电话机中，由于高密度安装而难于在扬声器后部保留足够的空间，结果，扬声器不能获得全部性能。
现在具有防止电磁波在扬声器中产生噪声的要求。
已经提出本发明以解决这种问题，并旨在提供一种便携无线电装置，其防止电磁波从无线电电路传播到扬声器中，并改善扬声器的音质。
                         发明内容
根据本发明的无线电装置为一种便携无线电装置，其包括无线电电路、扬声器、和用于保护扬声器不受无线电电路的电磁影响的屏蔽元件，其特征在于，屏蔽元件设置有通气孔，该通气孔的尺寸不影响屏蔽性能。通过这种结构，有可能使由于扬声器后部的振动所压缩的空气穿过通气孔，而不会减小屏蔽元件固有的屏蔽性能。从而，有可能防止电磁波从无线电电路传播到扬声器上。
                          附图说明
图1是根据本发明第一实施例的便携无线电装置的内部结构；以及
图2是根据本发明第二实施例的便携无线电装置的内部结构。
                     具体实施方式
将参照附图描述本发明实施例。在以下描述中，便携无线电装置使用时向上定位的便携无线电装置的部分被假设为便携无线电装置的上部。
第一实施例
图1是围绕根据本发明第一实施例的便携无线电装置的大致中心的部分的内部结构的剖面图。
便携无线电装置包括作为壳体的前盖1和后盖2。在前盖1顶部上设置一开口，该处固定用于液晶显示器的透明面板3。在前盖1上端的附近，设置一接收器音孔1A。在前盖1内表面对应于接收器音孔1A的位置上，通过垫片固定一接收器4。在后盖2顶部上，设置多个扬声器孔2A。在后盖2内表面对应扬声器孔2A的位置处，固定一扬声器8。
在由前盖1和后盖2构成的壳体内，设置印刷电路板5。在印刷电路板5的上表面上，设置一固定LCD模块的LCD托架6。在印刷电路板5的下表面上，安装无线电电路9。此外，设置一具有覆盖无线电电路9形状的屏蔽盒。在与扬声器后部相对的屏蔽盒10底部位置附近，设置多个通气孔10A。通气孔10A的尺寸被确定为不影响屏蔽从无线电电路9辐射的电磁波的性能。该尺寸根据便携电话机的频率确定。
在具有上述结构的便携无线电装置中，扬声器8的振动经由后音孔(未示出)传播。被扬声器8振动所压缩的空气从扬声器8的后部环绕传播。被压缩空气的一部分穿过屏蔽盒10上的通气孔10A并到达屏蔽盒10内的空间中。在屏蔽盒10内提供通气孔10A使屏蔽盒10内的空间得以利用，而改善了扬声器8的音质。
从无线电电路9辐射的电磁波被屏蔽盒10屏蔽，而不会泄漏到屏蔽盒10外部。从而，不会产生由于从无线电电路9辐射的电磁波到达扬声器8所造成的噪声。
以这种方式，在根据本发明第一实施例的便携无线电装置中，屏蔽盒10设置成覆盖无线电电路9，而具有不会影响屏蔽性能的尺寸的通气孔10A设置在相对扬声器8后部的表面上。这就改进了扬声器8的音质，并防止电磁波从无线电电路传播到扬声器8。
第二实施例
图2是围绕根据本发明第二实施例的便携无线电装置的大致中心的部分的内部结构的剖面图。与图1中相同的元件被赋予相同的附图标记，并省略了相应的描述。
在这个实施例中，取代第一实施例中的屏蔽盒10，而设置了具有屏蔽特性的托架11。托架11具有例如由金属化的树脂构成的表面，以使扬声器8免受从无线电电路9辐射的电磁波的影响。托架11具有覆盖扬声器后部和侧部的形状。在扬声器8后部附近，设置了具有不会影响屏蔽由无线电电路9辐射的电磁波性能大小的孔。在后盖2面对无线电电路9的内表面的部分上金属化防止了从无线电电路9辐射的电磁波从后盖2泄漏出去。其他部分的结构与第一实施例中的相同。
在具有上述结构的便携无线电装置中，扬声器8的振动通过后部音孔(未示出)传播。被扬声器8振动压缩的空气从扬声器8后部环绕传播。被压缩的空气穿过托架11内的通气孔11A，并传播到周围空间中。从而，可以利用围绕托架11的空间，以改善扬声器8的音质。
由于扬声器8被托架11屏蔽，从无线电电路9辐射的电磁波不会到达扬声器8，并也不会产生噪声。从无线电电路9辐射、并传播到后盖2内表面上的电磁波被金属化的内表面反射，而不会泄漏到后盖2之外。
以这种方式，根据本发明第二实施例的便携无线电装置设置有托架11，其具有覆盖扬声器8后部和侧部的形状，而不会影响屏蔽从无线电电路9辐射的电磁波的性能的通气孔11A设置在扬声器8后部的附近。这就改进了扬声器8的音质，并防止来自无线电电路的电磁波传播到扬声器8。
工业应用性
如上所述，根据本发明的便携无线电装置具有如下极佳的优点：即，通过在用于使扬声器免受无线电电路电磁影响的屏蔽元件内设置通气孔，防止了电磁波从无线电电路传播到扬声器，并改善了扬声器的音质，所述通气孔具有不会影响屏蔽性能的尺寸。

Claims (4)

1.一种便携无线电装置，包括：
无线电电路；
扬声器；以及
用于使扬声器免受无线电电路电磁影响的屏蔽元件；
其中，屏蔽元件包括通气孔，该通气孔的尺寸不会影响屏蔽性能。
2.如权利要求1所述的便携无线电装置，其特征在于，屏蔽元件为设置成覆盖无线电电路的屏蔽盒。
3.如权利要求1所述的便携无线电装置，其特征在于，屏蔽元件为具有覆盖扬声器后部和侧部形状的托架。
4.如权利要求1所述的便携无线电装置，其特征在于，通气孔设置在扬声器后部的音孔附近。
CNB018006752A 2000-04-03 2001-03-28 便携无线电装置 Expired - Fee Related CN1230059C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000100876A JP2001285432A (ja) 2000-04-03 2000-04-03 携帯無線機
JP100876/00 2000-04-03

Publications (2)

Publication Number Publication Date
CN1365600A true CN1365600A (zh) 2002-08-21
CN1230059C CN1230059C (zh) 2005-11-30

Family

ID=18615021

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB018006752A Expired - Fee Related CN1230059C (zh) 2000-04-03 2001-03-28 便携无线电装置

Country Status (6)

Country Link
US (1) US7113740B2 (zh)
EP (2) EP1190611B1 (zh)
JP (1) JP2001285432A (zh)
CN (1) CN1230059C (zh)
DE (1) DE60124644T2 (zh)
WO (1) WO2001076342A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100355259C (zh) * 2002-09-05 2007-12-12 T&A移动电话有限公司 用于包括有扬声器和耳机的无线通信终端的结构布置
US7499735B2 (en) 2004-03-30 2009-03-03 Nec Corporation Mobile station with sound speaker

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003318585A (ja) * 2002-04-24 2003-11-07 Toshiba Corp 電子機器
DE10232953B3 (de) * 2002-07-19 2004-03-04 Siemens Ag Raum- und platzsparende Audioeinrichtung für ein elektronisches Gerät
US7567680B2 (en) * 2004-10-29 2009-07-28 Sony Ericsson Mobile Communications, Ab Dual-diaphragm speaker assemblies with acoustic passageways and mobile terminals including the same
US7336228B2 (en) * 2004-12-15 2008-02-26 Kyocera Wireless Corp Stack-up configuration for a wireless communication device
KR100674849B1 (ko) * 2005-04-26 2007-01-26 삼성전기주식회사 무선통신 단말기의 엑츄에이터 모듈
US20100304796A1 (en) * 2006-11-23 2010-12-02 Nokia Corporation Magnetic Shield
US8927283B2 (en) * 2007-11-20 2015-01-06 The Regents Of The University Of California Method to control cell adhesion and growth on biopolymer surfaces
JP7158463B2 (ja) * 2018-03-23 2022-10-21 日立Astemo株式会社 電子制御装置
US11089712B2 (en) 2019-03-19 2021-08-10 Microsoft Technology Licensing, Llc Ventilated shield can
CN112788166B (zh) * 2021-01-06 2022-12-27 Oppo广东移动通信有限公司 电子设备

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4419770A (en) * 1981-05-02 1983-12-06 Sony Corporation Wrist AM radio receiver
US4717989A (en) * 1987-03-30 1988-01-05 Motorola Inc. Heat sink, EMI shield and controller module assembly for a portable radio transceiver
JPH01221099A (ja) * 1988-02-29 1989-09-04 Sony Corp 位相反転型スピーカー装置
US5406038A (en) * 1994-01-31 1995-04-11 Motorola, Inc. Shielded speaker
FI103632B1 (fi) * 1994-06-16 1999-07-30 Nokia Mobile Phones Ltd Rf-suoja
US5588041A (en) * 1995-01-05 1996-12-24 Motorola, Inc. Cellular speakerphone and method of operation thereof
US5796854A (en) * 1997-03-04 1998-08-18 Compaq Computer Corp. Thin film speaker apparatus for use in a thin film video monitor device
FI115108B (fi) * 1997-10-06 2005-02-28 Nokia Corp Menetelmä ja järjestely kuulokkeen vuotosiedon parantamiseksi radiolaitteessa
US6321070B1 (en) * 1998-05-14 2001-11-20 Motorola, Inc. Portable electronic device with a speaker assembly
US6136131A (en) * 1998-06-02 2000-10-24 Instrument Specialties Company, Inc. Method of shielding and obtaining access to a component on a printed circuit board
ITMI981279A1 (it) * 1998-06-05 1999-12-05 Italtel Spa Dispositivo serracavi e di drenaggio verso massa delle correnti parassite indotte su cavi schermati all'attraversamento di una

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100355259C (zh) * 2002-09-05 2007-12-12 T&A移动电话有限公司 用于包括有扬声器和耳机的无线通信终端的结构布置
US7499735B2 (en) 2004-03-30 2009-03-03 Nec Corporation Mobile station with sound speaker

Also Published As

Publication number Publication date
CN1230059C (zh) 2005-11-30
DE60124644D1 (de) 2007-01-04
US7113740B2 (en) 2006-09-26
DE60124644T2 (de) 2007-03-08
WO2001076342A1 (en) 2001-10-11
EP1190611B1 (en) 2006-11-22
US20030013478A1 (en) 2003-01-16
EP1740034A1 (en) 2007-01-03
EP1190611A1 (en) 2002-03-27
JP2001285432A (ja) 2001-10-12

Similar Documents

Publication Publication Date Title
CN1230059C (zh) 便携无线电装置
CN111147988B (zh) 隐形顶篷麦克风
CN1054254C (zh) 电视机的扬声器***
US5844166A (en) Lattice RF shield
CN1420672A (zh) 移动电话用的扬声器组件
US20040202343A1 (en) Speakerphone accessory assembly
CN1761365A (zh) 电容式话筒
KR20070057278A (ko) 실드가 부착된 커넥터 및 회로 기판 장치
CN1351812A (zh) 扬声器组件
US5229555A (en) Speaker system and tv with the same
US20070147649A1 (en) Speaker, and module, electronic apparatus, and device that use the speaker
CN107396621B (zh) 用于电子装置的电磁屏蔽件
CN109979420B (zh) 音响设备以及电子乐器
US20090034218A1 (en) Printed circuit board assembly
JPH08125373A (ja) 電子機器
CN1114309C (zh) 无线电手机
CN2768390Y (zh) 电磁遮蔽装置
KR100858656B1 (ko) 휴대 단말기
CA2489113C (en) Loudspeaker enclosure incorporating a leak to compensate for the effect of acoustic modes on loudspeaker frequency response
JP6251881B2 (ja) スピーカシステムと、これを用いた電子機器、ならびに移動体装置
EP2837207B1 (en) A transducer with an output window in a second plane
CN1790810A (zh) 设置有内置型平板天线的移动通信终端的电磁波屏蔽结构
CN2755913Y (zh) 电磁屏蔽装置
KR100833304B1 (ko) 인터넷 냉장고의 스피커장착구조
KR20050053902A (ko) 지향성 콘덴서 마이크로폰용 홀더 키트

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20051130

Termination date: 20140328