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CN1251255A - 屏蔽罩的固定装置 - Google Patents

屏蔽罩的固定装置 Download PDF

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Publication number
CN1251255A
CN1251255A CN98803646A CN98803646A CN1251255A CN 1251255 A CN1251255 A CN 1251255A CN 98803646 A CN98803646 A CN 98803646A CN 98803646 A CN98803646 A CN 98803646A CN 1251255 A CN1251255 A CN 1251255A
Authority
CN
China
Prior art keywords
printed circuit
circuit board
leaf spring
fastening bolt
shield
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.)
Pending
Application number
CN98803646A
Other languages
English (en)
Inventor
A·加尔
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.)
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
Publication of CN1251255A publication Critical patent/CN1251255A/zh
Pending legal-status Critical Current

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
    • H05K9/0007—Casings
    • H05K9/002—Casings with localised screening
    • H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
    • H05K9/0024—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
    • H05K9/0032—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields having multiple parts, e.g. frames mating with lids
    • H05K9/0033—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields having multiple parts, e.g. frames mating with lids disposed on both PCB faces
    • 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]
    • H05K9/0024—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
    • H05K9/0032—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields having multiple parts, e.g. frames mating with lids
    • H05K9/0035—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields having multiple parts, e.g. frames mating with lids with retainers mounted beforehand on the PCB, e.g. clips
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S174/00—Electricity: conductors and insulators
    • Y10S174/34—PCB in box or housing

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Holders For Apparel And Elements Relating To Apparel (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Motor Or Generator Frames (AREA)
  • Air Bags (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

用一个板簧和紧固螺栓把屏蔽罩这样固定在印刷电路板上,即紧固螺栓用其端部范围与印刷电路板和板簧啮合。这样在安装屏蔽罩时就不需要位于印刷电路板后面和下面的空间。

Description

屏蔽罩的固定装置
本发明涉及一种在印刷电路板的要屏蔽的范围内固定屏蔽罩的装置。
在印刷电路板上布置的一些元件常常需要特别的电磁屏蔽。为此，这些元件用一个由螺丝拧在印刷电路板上的屏蔽罩来进行屏蔽。在许多情况中，例如在移动式无线电收音机中，由于空间的原因而不能装螺丝，因为在印刷电路板下面或后面没有装螺丝所需的位置。
所以本发明旨在提出上述那种固定装置，在该装置中，在印刷电路板的后侧所需的空间很小。
本发明是这样实现上述固定装置的，屏蔽罩用一个板簧和一根紧固螺栓压紧在印刷电路板上，其中，该紧固螺栓用其端部范围既与印刷电路板又与板簧啮合。
把屏蔽罩固定在印刷电路板上的本发明装置在固定时不需要位于印刷电路板下面和后面的空间。
本发明装置的一种适当结构的特征是，紧固螺栓在其两端具有环槽，印刷电路板设置有一孔，孔上连接一个切口，紧固螺栓用其下环槽可推入该切口中，紧固螺栓的上环槽在放上屏蔽罩时通过为此设置的孔从屏蔽罩伸出并与预加应力的板簧的切口保持啮合。其特征是，结构特别简单。
下面结合附图所示的实施例来详细说明本发明。
附图表示：
图1带有一个按本发明固定的屏蔽罩的印刷电路板的透视图；
图2按本发明固定在印刷电路板上的屏蔽罩的横断面；
图3按本发明固定的屏蔽罩的部分俯视图。
设置在印刷电路板1上的一些元件常常需要进行特别的电磁屏蔽。为此，这些元件用一个由螺丝拧在印刷电路板上的屏蔽罩来进行屏蔽。在许多情况中，例如在移动式无线电收发机中，由于空间的原因而不可能安装螺丝，因为在印刷电路板下面或后面没有为此所需的位置。
在本发明固定装置中，设置了一根紧固螺栓5，该螺栓在其两端有环槽9。印刷电路板1大致在要屏蔽部位的中间具有紧固螺栓5的插入孔8。这个插入孔8基本上由一个该紧固螺栓可穿过的孔和一个在其上连接的、该紧固螺栓5用其下环槽可穿入的切口组成，所以紧固螺栓固定在垂直方向。当然，紧固螺栓的环槽9和下自由端之间的间隔是极小的，所以在印刷电路板1下方几乎不需要占用位置。此外，在安装屏蔽罩时，在印刷电路板后面和下面不需要占用位置。
在所示实施例中，在屏蔽罩4和印刷电路板1之间还设置有一个屏蔽框3，在屏蔽框3和屏蔽罩4之间装有一块附加印刷电路板2。这里应当指出，屏蔽框3对本发明并不重要。
象屏蔽罩4那样，屏蔽框3在其中部也有紧固螺栓5的导向装置，所以可防止紧固螺栓的无意的侧向运动。
在紧固螺栓5的上端同样设置有环槽9，板簧6的切口可引入该环槽中。板簧6啮合在该环槽中的切口是这样设计的，在推入板簧6的状态下，紧固螺栓5的环槽与板簧6的啮合位置基本上在板簧6的中间。板簧6设计成使其两端可支承屏蔽框3上。这样在板簧6推到紧固螺栓5的端上后，屏蔽罩4就固定在印刷电路板1上。
通过板簧6的结构来在屏蔽罩上作用一定的压力，这是一个优点。亦即防止了施加太大的压力导致印刷电路板1或屏蔽罩4的损坏。
由于板簧用一个预定的压力将屏蔽框3压到印刷电路板1上，所以本发明的固定装置也避免了由于在屏蔽框3固定到印刷电路板1上时施加太大的力而导致屏蔽罩4或印刷电路板1的损坏。
为了锁定板簧6的位置，该板簧插入一个位于屏蔽罩4表面上的凸起部分7中。

Claims (3)

1.在印刷电路板要屏蔽的范围上固定一个屏蔽罩的装置，其特征为，该屏蔽罩(4)用一个板簧(6)和一根紧固螺栓(5)压紧在该印刷电路板(1)上，其中紧固螺栓(5)用其两端部与印刷电路板(1)和板簧(6)啮合。
2.按权利要求1的装置，其特征为：紧固螺栓(5)在其两端上设置有环槽(9)；在印刷电路板(1)内设置了一个孔(8)，该孔有一个连接切口，紧固螺栓(5)可用其下环槽(9)插入该切口中；在装上屏蔽罩(4)的情况下，紧固螺栓(5)的上环槽(9)通过一个为此设置的孔从屏蔽罩(4)中伸出来并与预加应力的板簧(6)的切口保持啮合。
3.按权利要求1或2的装置，其特征为，屏蔽罩(4)具有一个紧固螺栓(5)用的导向装置。
CN98803646A 1997-03-27 1998-03-05 屏蔽罩的固定装置 Pending CN1251255A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29705621U DE29705621U1 (de) 1997-03-27 1997-03-27 Vorrichtung zum Befestigen eines Schirmdeckels
DE29705621.2 1997-03-27

Publications (1)

Publication Number Publication Date
CN1251255A true CN1251255A (zh) 2000-04-19

Family

ID=8038174

Family Applications (1)

Application Number Title Priority Date Filing Date
CN98803646A Pending CN1251255A (zh) 1997-03-27 1998-03-05 屏蔽罩的固定装置

Country Status (10)

Country Link
US (1) US6339535B1 (zh)
EP (1) EP0972434B1 (zh)
JP (1) JP2000513154A (zh)
CN (1) CN1251255A (zh)
AT (1) ATE213117T1 (zh)
DE (2) DE29705621U1 (zh)
DK (1) DK0972434T3 (zh)
ES (1) ES2172888T3 (zh)
PT (1) PT972434E (zh)
WO (1) WO1998044770A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1321033C (zh) * 2003-08-13 2007-06-13 重庆隆鑫工业（集团）有限公司 带收音机装置的摩托车
CN103238039A (zh) * 2010-09-29 2013-08-07 卡尔蔡司工业测量技术有限公司 用于坐标测量仪的可行走其上的盖

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9902056D0 (en) * 1999-01-29 1999-03-24 Neopost Ltd Secure housing
GB2404089B (en) * 2003-07-11 2007-05-02 Craig Rochford Printed circuit board assembly
JP5186172B2 (ja) * 2007-10-10 2013-04-17 トヨタホーム株式会社 建物の空調設備
WO2009062842A1 (en) * 2007-11-12 2009-05-22 Thomson Licensing Tuner housing
CN201319167Y (zh) * 2008-11-13 2009-09-30 鸿富锦精密工业（深圳）有限公司 电脑机箱
KR20180013382A (ko) * 2016-07-29 2018-02-07 삼성전자주식회사 인쇄회로기판 및 이를 포함하는 반도체 메모리 장치

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6607180U (de) * 1962-09-28 1971-01-28 Siemens Ag Elektrisches geraet mit abschirmung
US4811168A (en) * 1987-11-23 1989-03-07 Chesnut Milton L Housing and connector apparatus for electronic circuit
US5049087A (en) * 1989-08-04 1991-09-17 Microelectronics And Computer Technology Corporation Electrical connector using flexible circuit tape
DE8911881U1 (de) * 1989-10-05 1989-11-23 TRW United-Carr GmbH & Co KG, 6753 Enkenbach-Alsenborn Halteelement aus Kunststoff
JP2829132B2 (ja) * 1990-12-21 1998-11-25 北川工業株式会社 固定具
FR2682005B1 (fr) * 1991-09-26 1993-11-26 Merlin Gerin Declencheur comportant une carte de circuit imprime montee par pincement.
US5545848A (en) * 1993-10-25 1996-08-13 Lin; Hsin-Yi Cassette splitter for television antenna signals
JPH08116195A (ja) * 1994-10-14 1996-05-07 Matsushita Electric Ind Co Ltd 回路ユニットのシールド装置
JP2878153B2 (ja) * 1995-07-13 1999-04-05 静岡日本電気株式会社 プラスチック筐体のフレームグランド強化構造

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1321033C (zh) * 2003-08-13 2007-06-13 重庆隆鑫工业（集团）有限公司 带收音机装置的摩托车
CN103238039A (zh) * 2010-09-29 2013-08-07 卡尔蔡司工业测量技术有限公司 用于坐标测量仪的可行走其上的盖
CN103238039B (zh) * 2010-09-29 2016-09-07 卡尔蔡司工业测量技术有限公司 用于坐标测量仪的可行走其上的盖

Also Published As

Publication number Publication date
EP0972434B1 (de) 2002-02-06
WO1998044770A1 (de) 1998-10-08
PT972434E (pt) 2002-07-31
DE59803018D1 (de) 2002-03-21
ATE213117T1 (de) 2002-02-15
DE29705621U1 (de) 1997-05-15
ES2172888T3 (es) 2002-10-01
JP2000513154A (ja) 2000-10-03
DK0972434T3 (da) 2002-05-06
EP0972434A1 (de) 2000-01-19
US6339535B1 (en) 2002-01-15

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